SUPPLEMENT TO THE REFERENCE HANDBOOK OF THE MEDICAL SCIENCES VARIOUS WRITERS ILLUSTRATED BY CHROMOLITHOGRAPHS AND FINE WOOD-ENGRAVINGS Edited by ALBERT H. BUCK, M.D. New York City VOLUME IX NEW YORK WILLIAM WOOD & COMPANY 1893 WILLIAM WOOD & COMPANY TROW DIRECTORY PRINTING AND BOOKBINDING COMPANY NEW YORK LIST OF CONTRIBUTORS TO VOLUME IX. ROBERT ABBE, M.D New York, N. Y. Attending Surgeon, St. Luke's Hospital; Consulting Surgeon, Hospital for Ruptured and Crippled. SAMUEL W. ABBOTT, M.D Boston, Mass. Secretary of State Board of Health of Massachusetts. MAJOR GEORGE W. ADAIR, M.D Fort Robin- son, Neb. Surgeon, United States Army. CHARLES W. ALLEN, M.D New York, N. Y. JOHN AULDE, M.D Philadelphia, Pa. Editor of the " American Therapist." FRANK BAKER, M.D., Ph.D... .Washington, D. C. Professor of Anatomy, Georgetown University, Wash- ington, D.C. CHARLES P. BANCROFT, M.D Concord, N. H. Superintendent of the New Hampshire Asylum for the Insane. WILLIAM BARNES, S.B., M.D Decatur, III. A. D. BLACKADER, M.D Montreal, Canada. Professor of Pharmacology and Therapeutics, and Lecturer on Diseases of Children, McGill University ; Physician to the Montreal General Hospital. ALBERT N. BLODGETT, M.D Boston, Mass. MEADE BOLTON, M.D Baltimore, Md. Pathological Laboratory, Johns Hopkins Hospital. JOHN W. BRANNAN, M.D New York, N. Y. Visiting Physician, Bellevue Hospital. GEORGE EMERSON BREWER, M.D...New York, N. Y. Assistant Demonstrator of Anatomy, College of Phy- sicians and Surgeons. NORMAN BRIDGE, M.D , .Los Angeles, Cal. WILLIAM BROWNING. M.D Brooklyn N. Y. Lecturer on Normal Neurology at the Long Island Col- lege Hospital; Neurologist to the Long Island Dis- pensary. JOSEPH D. BRYANT, M.D New York, N. Y. Visiting Surgeon, Bellevue and St. Vincent's Hospitals. J. WELLINGTON BYERS, M.D.. .Charlotte, N. C. HENRY T. BYFORD, M.D Chicago, III. Professor of Gynaecology, College of Physicians and Surgeons of Chicago, and of the Post-Graduate Med- ical School of Chicago ; Gynaecologist to the Wo- man's Hospital, to St. Luke's Hospital, and to the Chicago Hospital. HENRY DMrIGHT CHAPIN, M.D.New York, N. Y. Professor of Diseases of Children at the New York Post-Graduate Medical School and Hospital. T. M. CHEESMAN, M.D New York, N. Y. Instructor in Bacteriology, College of Physicians and Surgeons, Medical Department of Columbia College. FREDERIC COGGESHALL, M.D Boston, Mass. Physician to the Boston Dispensary, Department of Nervous Diseases ; Pathologist to the Carney'Hos- pital. WILLIAM B. COLEY, M.D New York, N. Y. Attending Surgeon, New York Cancer Hospital. JOSEPH COLLINS, M.D New York, N. Y. Instructor in Nervous Diseases, New York Post-Grad- uate Medical School and Hospital. WILLIAM JUDKINS CONKLIN, M.D.. .Dayton, 0. EDWARD COWLES, M.D., LL.D Somerville, Mass. Medical Superintendent of the McLean Hospital, Som- erville, Mass. ; formerly Superintendent of the Bos- ton City Hospital ; Clinical Instructor in Mental Diseases, Harvard Medical School. GEORGE A. CRAIG1N, M.D Boston, Mass, Physician to Staniford Street Dispensary, Department of Women ; Physician to House of the Good Samar- itan. ANDREW F. CURRIER. M.D New York, N. Y. Gynaecologist to Bellevue Hospital, Out - Patient De- partment. B. FARQUHAR CURTIS, M.D... .New York, N. Y. Attending Surgeon, St. Luke's Hospital. THOMAS DARLINGTON, JR., M.D New York, N. Y. Visiting Physician to the New York Foundling Hos- pital ; formerly Physician to the Copper Queen Consolidated Mining Company. N. S. DAVIS, M.D., LL.D ; Chicago, III. Emeritus Professor of Principles and Practice of Medicine and of Clinical Medicine, Northwestern University Medical School; Professor of Medical Jurisprudence, Northwestern University Law School. ROBERT H. M. DAWBARN, M.D New York, N. Y. Professor of Operative Surgery and Surgical Anatomy in the New York Polyclinic. EDWARD B. DENCH, M.D New York, N. Y. Aural Surgeon, New York Eye and Ear Infirmary. L. M. DENNIS, Ph.B., B.S Ithaca, N. Y. Assistant Professor of Analytical Chemistry, Cornell University. HASKET DERBY, M.D Boston, Mass. Ophthalmic Surgeon, Massachusetts Charitable Eye and Ear Infirmary. F. X. DERCUM, M.D Philadelphia, Pa. Clinical Professor of Diseases of the Nervous System, Jefferson Medical College ; Neurologist to the Phila- delphia Hospital. CHARLES N. DOWD, M.D New York, N. Y. Asssistant Surgeon to the New York Cancer Hospital. THEODORE DUNHAM, M.D New York, N. Y. ROBERT G. ECCLES, M.D Brooklyn, N. Y. Chairman of the Sub-Committee on Active Principles of the United States Pharmacopoeia; Government Medical Chemist for the Department of the In- terior. III LIST OF CONTRIBUTORS TO VOLUME IX. JOHN SLADE ELY, M.D New York, N. Y. Professor of Pathology, Women's Medical College of the New York Infirmary; Assistant in Pathology, College of Physicians and burgeons ; Pathologist to Bellevue Hospital ; Assistant Physician, Roosevelt Hospital, Out-Patient Department. HAROLD C. ERNST, M.D Boston, Mass. Assistant Professor of Bacteriology in Harvard Univer- sity ; Physician to Out-Patients at the Massachusetts General Hospital. PIERRE A. FISH, B.S Ithaca, N. Y. Instructor in Physiology, Vertebrate Zoology, and Neurology, Cornell University. WILLIAM H. FORD, M.D Philadelphia, Pa. President of the Board of Health, Philadelphia ; Mem- ber of the American Public Health Association. GEORGE R. FOWLER, M.D Brooklyn, N. Y. Attending Surgeon, St. Mary's and Methodist Episco- pal Hospitals. JAMES M. FRENCH, M.D Cincinnati, Ohio. Lecturer On Morbid Anatomy and Demonstrator of Pathology, Medical College of Ohio ; Physician to St. Mary's Hospital, Cincinnati. J. McF. GASTON, M.D Atlanta, Ga. H. GRADLE, M.D Chicago, III. Eye and Ear Surgeon to the Michael Reese Hospital. DOUGLAS GRAHAM, M.D Boston, Mass. JAMES E. GRAHAM, M.D Toronto, Canada. Lecturer on Diseases of the Integumentary System, Toronto School of Medicine. LIEUT.-COL. CHARLES R. GREENLEAF, M.D.... Washington, D. C. Deputy Surgeon-General, United States Army. JOHN B. HAMILTON, M.D Chicago, III. Late Surgeon-General, United States Marine Hospital Service. HORACE T. HANKS, M.D New York, N. Y. Attending Surgeon, Woman's Hospital. A. H. HARRIMAN, M.D Laconia, N. II. ROBERT P. HARRIS, M.D Philadelphia, Pa. GEORGE HAVEN, M.D Boston, Mass. Gynaecologist to Out-Patients, Boston City Hospital; Gynaecologist to the Boston Dispensary ; Physician to Out-Patients, Boston Lying-in Hospital. CLARENCE L. HERRICK, M.D Granville, O. Professor of Biology, Denison University. S. S. HERRICK, M.D San Francisco, Cal. WILLIAM B. HILLS, M,D Boston, Mass. Associate Professor of Chemistry, Harvard Medical School. WILLIAM H. KINGSTON, M.D., LL.D Mon- treal, Canada. Professor of Clinical Surgery, Montreal School of Medi- cine (Laval University) ; Surgeon to the Hotel-Dieu. RICHARD HODGSON, M.A., LL.D.. .Boston, Mass. Secretary of the American Branch of the Society for Psychical Research. WILLIAM H. HOWELL, M.D Baltimore, Md. Professor of Physiology, Johns Hopkins University. JOHN H. HUDDLESTON, M.D.. ..New York, N. Y. Attending Physician, Gouverneur Dispensary. JAMES NEVINS HYDE, M.D Chicago, III. Professor of Skin and Venereal Diseases, Rush Medi- cal College. FREDERICK W. JOHNSON, M.D Boston, Mass. Surgeon to the Gynaecological Department of St. Eliza- beth's Hospital, and of Carney Hospital. WILLIAM W. JOHNSTON, M.D Washington, D. C. Professor of Theory and Practice of Medicine, Medical Department of Columbian University, Washington ; Consulting Physician to Garfield, Children's, and Emergency Hospitals, Washington. (SUPPLEMENT.) WYATT JOHNSTON, M.D Montreal, Canada. Demonstrator of Bacteriology, McGill University. WILLIAM W. KEEN, M.D., LL.D.. ..Philadelphia, Pa. Professor of Principles of Surgery and of Clinical Sur- gery, Jefferson Medical College ; Surgeon to the Jefferson Medical College Hospital, and the Philadel- phia Orthopaedic Hospital and Infirmary for Nervous Diseases. CHARLES B. KELSEY, M.D New York, N. Y. RUFUS A. KINGMAN, M.D Boston, Mass. Instructor in Gynaecology in the Boston Polyclinic ; Gynaecologist to the Boston Dispensary for Diseases of Women, to St. Elizabeth's Hospital, and to Car- ney Hospital. CARL KOLLER, M.D New York, N. Y. Lecturer on Diseases of the Eye, New York Polyclinic; Surgeon to the Eye Department, Mount Sinai Dis- pensary : Member of the Heidelberg er Ophthalmolo- gische Gesellschaft. S. P. KRAMER, M.D Cincinnati, O. Professor of Pathology and Bacteriology, and Lecturer on Clinical Surgery, Cincinnati College of Medicine and Surgery. CHARLES McK. LEOSER, Esq. .. .New York, N. Y. FRANKLIN P. MALL, M.D Baltimore, Md. Professor of Anatomy, Johns Hopkins University. ANDREW J. McCOSH, M.D New York, N. Y. Attending Surgeon, Presbyterian Hospital. MIDDLETON MICHEL, M.D Charleston, S. C. Professor of Medical Jurisprudence and Physiology,. . Medical College of the State of South Carolina ; At- tending Surgeon, City Hospital, Charleston. WILLIAM S. MILLER, M.D Madison, Wis. Instructor in Vertebrate Anatomy, University of Wis- consin. WESLEY MILLS, M.D Montreal, Canada. Professor of Physiology, McGill University. J. L. MINOR, M.D Memphis, Tenn. JOHN H. MUSSER, M.D Philadelphia, Pa. Assistant Professor of Clinical Medicine, University of Pennsylvania ; Physician to Philadelphia and Pres- byterian Hospitals. SAMUEL NICKLES, M.D Cincinnati, O. Professor of Materia Medica and Therapeutics and Clinical Medicine, Medical College of Ohio. JOSEPH O'DWYER, M.D New York, N. Y. Visiting Physician, New York Foundling Hospital. OSCAR OLDBERG, Phar.D Chicago, III. Professor of Pharmacy, School of Pharmacy, North- western University, Chicago. HENRY F. OSBORN, Sc.D New York, N. Y. Da Costa Professor of Biology, Columbia College. OLIVER T. OSBORNE, M.D.... New Haven, Conn. Assistant Professor of Materia Medica and Therapeu- tics, Yale University. AUSTIN PETERS, B.S., D.V.S., and M.R.C.V.8., Boston, Mass. FREDERICK PETERSON, M.D New York, N. Y. Chief of Clinic, Nervous Department, Vanderbilt Clinic, College of Physicians and Surgeons. GEORGE A. PIERSOL, M.D Philadelphia, Pa. Professor of Anatomy in the University of Penn- sylvania. CAPT. JAMES E. PILCHER, M.D., Fort Ringgold, Rio Grande City, Tex. Assistant Surgeon, United States Army. F. PEYRE PORCHER, M.D., LL.D., Charleston, S. C. Professor of Materia Medica and Therapeutics, Medi- cal College of the State of South Carolina ; Attend- ing Physician, City Hospital, Charleston. IV LIST OF CONTRIBUTORS TO VOLUME IX. J. PICKERING PUTNAM, Esq Boston, Mass. MARY PUTNAM-JACOBI, M.D., New York, N. Y. Consulting Physician, New York Infirmary for Wo- men and Children, LEOPOLD PUTZEL, M.D New York, N. Y. Visiting Neurologist, Randall's Island Hospitals. B. ALEXANDER RANDALL, M.D., Philadelphia, Pa. Clinical Professor of Ear Diseases, University of Penn- sylvania; Professor of Otology, Philadelphia Poly- clinic ; Ophthalmic and Aural Surgeon, Children's Hospital. J. C. REEVE, M.D Dayton, O. EDWARD T. REICHERT, M.D., Philadelphia, Pa. Professor of Physiology. University of Pennsylvania. CHARLES RICE, Ph.D New York, N. Y. Chemist of Department of Public Charities and Cor- rection, New York City ; Chairman of Committee of Revision and Publication of the Pharmacopoeia of the United States of America. CLARENCE C. RICE, M.D New York, N.Y. Professor of Diseases of the Nose and Throat, Post- Graduate Medical School and Hospital. JOHN RIDLON, M.D Chicago, III. Professor of Orthopedic Surgery in the Northwestern University Medical School, and the Chicago Post- Graduate Medical School ; Orthopedic Surgeon to St. Luke's Free Hospital of Chicago. A. D. ROCKWELL, M.D New York, N. Y. THOMAS H. RUSSELL, M.D... .New Haven, Conn. Professor of Clinical Surgery and Surgical Anatomy, Yale University. WILLIAM T. SEDGWICK, Ph.D Boston, Mass. Professor of Biology, Massachusetts Institute of Tech- nology ; and Chief Biologist to the State Board of Health of Massachusetts. GEORGE B. SHATTUCK, M.D Boston, Mass. Visiting Physician, Boston City Hospital. BEAUMONT SMALL, M.D Ottawa, Canada. Examiner in Materia Medica and Pharmacy, College of Physicians and Surgeons of Ontario ; Attending Physician, General Protestant Hospital, Ottawa. COLONEL JOSEPH R. SMITH, M.D., San Fran- cisco, Cal. Assistant Surgeon-General, United States Army. HENRY R. STEDMAN, M.D .Boston, Mass, Superintendent of " Woodbourne" (Hospital for Ner- vous and Mental Disease). (SUPPLEMENT.) THOMAS LATHROP STEDMAN, M.D., New York, N. Y. LOUIS McLANE TIFFANY, M.D., Baltimore, Md. Professor of Surgery, University of Maryland. CHARLES W. TOWNSEND, M.D.... Boston, Mass. Physician to Out-Patients at the Massachusetts Gen- eral, Children's, and Lying-in Hospitals. ROGER S. TRACY, M.D New York. N. Y. Deputy Register of Vital Statistics, Health Depart- ment, City of New York. F. TUCKERMAN, M.D Berlin, Germany. A. VANDER VEER, M.D Albany, N. Y. Professor of Didactic, Clinical, and Abdominal Sur- gery, Albany Medical College. ELY VAN DE WARKER, M.D Syracuse, N. Y. Surgeon to the Central New York Hospital for Women ; Surgeon to the Syracuse Woman's and Children's Hospital ; Consulting Surgeon to St. Ann's Maternity Hospital. LEONARD WEBER, M.D New York, N. Y. Consulting Physician to St. Mark's and St. Joseph's Hospitals. EDMUND C. WENDT, M.D New York, N. Y. MOSES C. WHITE, M.D New Haven, Conn. Professor of Pathology, Yale University. JAMES T. WHITTAKER, M.D., LL.D Cincin- nati, O. Professor of Theory and Practice of Medicine, Medical College of Ohio : Lecturer on Clinical Medicine, Good Samaritan Hospital. BURT G. WILDER, M.D Ithaca, N. Y. Professor of Comparative Anatomy and Zoology, Cor- nell University. CHARLES F. W1THINGT0N, M.D... Boston, Mass. ALFRED C. WOOD, M.D Philadelphia, Pa. Instructor in Clinical Surgery, University of Pennsyl- vania ; Assistant Surgeon, University and Gynecean Hospitals, Philadelphia. MAJOR ALFRED A. WOODHULL, M.D Hot Springs, Ark. Surgeon, United States Army. CAPTAIN CHARLES E. WOODRUFF, M.D.. .Fort Assinniboine, Mon. Assistant Surgeon, United States Army. PHILIP ZENNER, M.D Cincinnati, O. Clinical Lecturer on Diseases of the Nervous System, Medical College of Ohio. V PREFACE. The present volume is the outcome of a decision to bring The Reference Handbook of the Medical Sciences fully up to date. It was at first contemplated to revise the vol- umes of the work and issue a new edition of the whole ; but as this would practically make obsolete the great number of sets of the Handbook now in the libraries of phy- sicians all over the world, it was considered preferable to publish a supplementary vol- ume, which could be added to those already issued, completing, rather than destroying, the original edition, and at the same time enabling present possessors of the work to obtain the new matter at a comparatively small cost. Although the original work was published at short intervals during the period from 1885 to 1889, and consequently is not very old in point of years, nevertheless in some of its departments-especially those of Pathology, Materia Medica, and Therapeutics-the changes that have taken place in even this brief period of time are so great as to be almost startling in their magnitude. Much of this newly acquired knowledge still lies scattered throughout periodical medi- cal literature, and has not yet been incorporated into the text-books that are used by a large proportion of the profession. The present, therefore, seemed a good time in which to gather together into a single supplementary volume all this scattered knowledge. Soon after the work was inaugurated, it was found-as we then believed-that all of the available space would not be required for the adequate presentation of this recently acquired knowledge. Accordingly, provision was made for the introduction of a number of articles on different topics which had not been discussed at all in the original work. Many of these, it was thought, would add materially to the usefulness of the book as a work of reference. In the progress of the undertaking the Editor has received valuable assistance from the following individuals, to all of whom he would now offer his grateful acknowledg- ments : Dr. John Green, of St. Louis, Mo. ; Dr. Thomas Lathrop Stedman, of New York ; Professor Charles Sedgwick Minot and Dr. William N. Bullard, of Boston, Mass. ; Dr. Beaumont Small, of Ottawa, Canada ; Professor Burt G. Wilder and Professor Simon H. Gage, of Ithaca, N. Y. ; and Lieutenant-Colonel Charles R. Greenleaf, Major Alfred A. Woodhull, and Major John Van R. Hoff, of the Medical Staff of the United States Army. He also takes pleasure in acknowledging the generosity manifested by the publishers in the present undertaking; for when it became evident that the volume could not be kept within the limits (number of pages) set by them beforehand, and so announced in their published circulars, unless some articles should be omitted altogether, and others very much shortened, they authorized him to publish all this material in its entirety, notwithstanding the great increase in cost to which they would thereby be subjected, without any addition in the pecuniary returns to tliem. In consequence of this decision the volume, as may be noticed, far exceeds any of its predecessors in the number of pages which it contains. ALBERT H. BUCK. VII SUPPLEMENT TO THE REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Aba no. Acetanilide. ABANO. An Italian watering-place, known to the Romans as Aquae Aponi, or Aquae Patavinae. Location.-In the province of Venetia, six miles from Padua. Access.-From Paris, via the Paris, Lyons & Medi- terranean Railroad ; then through the Mont Cenis, Turin, Milan, Padua ; or hy steamer from New York to Genoa, and thence to Padua. Indications.-These celebrated hot (200° F.) sulphur springs are much used in rheumatism, gout, scrofula, and all cutaneous and syphilitic affections. There are ten bathing establishments, with modern appliances. The waters contain bromine and iodine, but a reliable analysis is not at hand. Peat baths are also employed. Accommodation.-Hotels and lodging-houses are not of the best. The village is interesting, but not clean. Edmund C. Wendt. ABBAZIA. One of the newer and most popular health- resorts of Austria. Location.-Abbazia is situated on a pretty bay of the Adriatic, in Istria, district of Fiume, and about one hour's drive from the city of that name. It is fairly well sheltered from the north, east, and west winds. The Monte Maggiore acts as a protecting barrier. It is known as a resort on the " Austrian Riviera." Access.-By the Austrian " Sudbahn,'' one hour from the station Matuglie. Indications.-Abbazia has become decidedly popular recently as a winter station for neurasthenic people ; also for subacute and chronic catarrhal affections of the respiratory organs. On account of its attractive location it is also used by the natives as a summer resort. Sea- bathing, promenades in pretty parks, establishments for inhalation, massage, mechano-therapy, etc., are among its resources. Dr. Glax maintains the superiority of the winter climate of Abbazia over many other similar stations {Aerztliche MittheUungen aus Abbazia, Wien, 1892). He gives elab- orate tables of meteorological observations in substantia- tion of his views. But the impartial observer will only perceive that the climate of this resort somewhat re- sembles that of the Riviera generally, but is rather more moist than that district. The sanitary arrangements of the place are said to be satisfactory, and of its natural attractiveness there is no doubt. Nevertheless, Dr. Glax must be regarded as a local enthusiast. Accommodation.-There is a large hotel, the Grand Hotel Abbazia, several minor ones, and a Kuranstalt called "Quisisana." Five or six physicians are in at- tendance. The winter season lasts from October to May. Splendid promenade along the shore. Edmund C. Wendt. ACETANILIDE (Phenylacetamide, Antifebrin). Of the host of new remedies that have been received during the past few years, this is one that has received general approbation and has sustained the reputation with which it was introduced. In Great Britain it has received offi- cial recognition by being placed in the Pharmacopoeia of 1890. Since its introduction in 1886, by Drs. Kahn and Hepp, it has been extensively employed, without detract- ing from their estimate of its virtues. Further study has established its antipyretic and analgesic properties, and were it not that in phenazone and phenacetine we have drugs with a similar action it would be prized as of in- estimable value. The tendency it has to cause profuse sweating and a condition of cyanosis has unfortunately engendered in many a sense of dread which has restricted its use. This toxicity is greatly over-estimated and should not be feared if the dose and mode of adminis- tering are attended to. It is rather a danger-signal far in advance of any serious consequences. Kahn and Hepp in their original papers stated that one- fourth of a gramme (3.85 grains) was a sufficient dose, and subsequent writers have insisted on the efficacy of even smaller quantities. Instead of the seven or ten grains so frequently given, the consensus of opinion now points to three or four grains as a more proper initial dose in every case where its use is begun, to be increased as the individual suscept- ibility is learned. There are also many points to be con- sidered in its administration which influence its action. As the effect of the dose is continued for two or three hours the dose should not be repeated until that interval has elapsed. Where the use of the drug is persisted in for some time a day of freedom from its use should oc- casionally be allowed to intervene, as it undoubtedly pos- sesses a sort of cumulative action. Many instances are reported where severe toxic symptoms have followed the same dose that had been given for some days with only beneficial effects. Wheh the patient is anaemic, and in the debilitated and aged, the toxic symptoms more readily supervene, and in women, during the few days previous to menstruation, the condition of the blood is supposed to favor the decomposition of the drug and increase its action. The time of the dose, in relation to the natural rise or decline of temperature, is of importance; when given with the increase of fever its action is slower and within control, but if its effect coincides with the decline the fall will be rapid and probably in excess of what is expected. Although the toxic symptoms are alarming it is a ques- tion as to how far they are dangerous. The cyanosis and sense of depression is not of long duration and is rapidly overcome. Fatal cases are rare and very large quantities of the drug have been taken without causing death. A case is reported in which teaspoonful doses were taken at short intervals until one ounce was disposed of, and in another instance seven and a half drachms were taken with suicidal intent. Tn both cases recovery followed. Acetanilide possesses many advantages over other anti- pyretics. Its action is rapid and certain ; the amount required is small and easily taken by the patient; it has no irritating effect on the digestive organs, but rather promotes digestion and improves the well-being of the body ; and, what is of greater importance, it is devoid of any depressive action on the heart or circulation. The toxic condition arises from an altered state of the blood and disordered function of the medulla and spinal 1 Acetanilide. Acromegaly. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. cord. The early symptoms are profuse perspiration and a bluing of the finger-nails and lips, accompanied by a sense of oppression ; then follow vertigo and giddiness, singing in the ears, dilated pupils, cold extremities, sub- normal temperature, slow and shallow breathing, feeble pulse, nervous twitchings, and convulsions. How the drug produces its action is as yet undeter- mined. There is a lessening of the oxidizing property of the blood and the production of methaemoglobin, the arterial blood becomes of a dirty brown color, the serum becomes colored and haemoglobinuria supervenes. In extreme cases and where the drug is administered for a prolonged period, it produces a state of anaemia. The disturbances in the medulla are considered to be second- ary to the condition of the blood and not due to any direct action of the drug on the nerve-centres. To counteract the poisoning, stimulating treatment is indicated. Warmth to the extremities and surface ; alcohol, ether, and camphor by the mouth or hypoder- mically ; belladonna is particularly recommended for its stimulant action on the centres, four drops of the tincture every half hour for four doses, afterward at longer in- tervals, having proved of service. Strychnine is also use- ful. The inhalation of oxygen is indicated. In extreme prostration the transfusion of saline solution has been adopted with benefit. Acetanilide in fever is used solely as an antipyretic, and as such it has been classed as one of the best we pos- sess. It is utilized in typhoid fever, pneumonia, phthi- sis, erysipelas, acute rheumatism, and in all conditions in which hyperpyrexia is present. It was thought by some to have specific properties in many of these dis- orders, but such views are no longer tenable ; the dura- tion of the disease is not affected, complications are not prevented, nor does it guard the patient against relapses. It reduces the high temperature and relieves the discom- fort and distress that are present, and its sedative action on the nervous system adds to its calming and refreshing effect. Its continuous administration is not advised, but only its use when the temperature is such as to require in- terference. In phthisis it proves particularly soothing, and by judi- ciously controlling the pyrexia night-sweats are lessened and prevented. In the hyperpyrexia of pneumonia it is used with advantage, but in this condition, as well as in advanced phthisis, where the respiratory tissue is reduced, it must be given with caution. In acute rheumatism it relieves the painful and swollen joints and reduces the temperature. When the pains are severe it requires larger doses than in other febrile affec- tions. Its action is generally thought not to be so effi- cacious as that of antipyrin or salicylate of soda, but it has not their disturbing influence on the digestive organs, and may be given where these drugs are not well borne. Its analgesic properties have proved almost as decided as its power of reducing pyrexia. It is particularly use- ful in all pains due to irritation of the sensory nerves or pains of a reflex character, such as pains of locomotor ataxia, neuralgia, sciatica, lumbago, pains after opera- tions, ovarian and menstrual irritation ; also in migraine, nervous headaches, the headaches of growing children, and all paroxysmal pains it has proved equally success- ful. It has been recommended and tried in epilepsy and chorea but without much advantage. In the diseases of infancy it has proved of decided use- fulness. Its effects are of longer duration and the toxic symptoms are not so liable to follow its use. In scarlet fever, measles, pneumonia, etc., its action has been most gratifying, reducing fever and restlessness and inducing a quiet and refreshing sleep. In whooping-cough it is also used with success ; its action promotes expectoration and reduces the frequency and duration of the paroxysms. Beaumont Small. ACIREALE. A much-frequented climatic health-re- sort with thermal waters in Sicily, Italy. Location.-Acireale is situated in the province of Catania, on the southern slope of Mount Etna. It has (SUPPLEMENT.) an elevation of 560 feet above sea-level, and has an old- established reputation, the springs having been known to the ancients as Aqua Santa Venere. Access.-It is two hours' ride from Messina, on the Messina-Catania Railroad. Indications.-The native Italians regard Acireale as an all the year round resort, but foreigners go there only in the winter season. The waters are sulpho-saline, and also contain iodides. The springs have a temperature of 70° F. They are used with advantage in rheumatism, gout, scrofula, and metallic poisoning; also in paralysis and neuralgia. The climate is said to benefit phthisis, emphysema, chronic respiratory troubles, anaemia, chlo- rosis, and neurasthenia. The winter climate of Acireale is dry and mild. The death-rate is stated to be only nineteen per thousand. Mean winter temperature, 55° F. The variations are never more than ten degrees. The number of rainy days in the year range between thirty and fifty, but do not exceed the latter. Snow and fogs are unknown. Windy days are less in number than on the Riviera, and there is a complete absence of dust. The prevailing winds are the S.E., S.W., S.S.E., and E.S.E. The air is rich in ozone, owing to the vicinity of the sea. The luxuriance of the vegetation is almost tropical. Accommodation.-The principal hotel is the Grand Hotel des Bains, facing due south. The town has 80,000 inhabitants. There are several medical establishments. Edmund C. Wendt. ACROMEGALY, or Akromegaly (aspov, extremity ; ptyas, great). Synonyms : Acromegalie ; akromegalie ; acromegalia ; pachyacrie ; Marie's disease. Definition.-Acromegaly is a chronic disease, charac- terized by an abnormal increase in the size of the ex- tremities of the body, viz., hands, feet, and generally head, due to an hypertrophy of the bones and soft parts of these regions. History.-The first to recognize this disease as a separate entity was P. Maric, who wrote upon this sub- ject in 1886. This first article of Marie's describes two cases which he had discovered while first assistant to Professor Charcot. He named this disease " Acrome- galic" because he found all the extremities of the body enlarged, viz., hands, feet, and cephalic extremity, while von Recklinghausen suggests the name of "pachyacrie." Since the publication of Marie's first paper in 1886, a number of cases, reported in literature under various titles, have been discovered, which in all probability were cases of acromegaly. A few of the titles under which these cases were reported, all of which have un- questionably not yet been discovered, are " Exophthalmic Goitre," " Myxoedema," " Hypertrophy of the Tongue," and, more frequently than all the rest, " Gigantism," or giant growth. On the other hand, since 1886, a number of cases have been reported as acromegaly, which I do not believe to be cases of that disease. Thus far, something more than one hundred cases have been published, some few of which, as just stated, are probably not acromegaly. The first cases discovered and reported as acromegaly (in 1885 Wadsworth reported a case as myxoedema, which was undoubtedly acromegaly) in America were those of Drs. O'Connor and Adler, both of which were published in 1888. In 1890, Marie published an article on a second new disease, which was at first confounded with acrome- galy, but which clinically and pathologically is a dis- tinct and entirely different disease ("De 1'osteoarthro- pathie hypertrophiante pneumique," Hevue de med., 1890). Most of the literature on acromegaly will be found at the end of this article, but the disease can be readily studied, as a whole, in the following publications : " De Facromegalie, Maladie de P. Marie," Souza-Leite, Paris, 1890, gives a complete description, in detail, of all of the cases up to that date, thirty-eight in number. A transla- tion of Souza-Leite's article in the New Sydenham So- ciety, London, 1891, contains the above thirty-eight cases, and adds abstracts of ten more. In our own country, 2 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Acetanilide. Acromegaly. Dr. Joseph Collins, of New York, in a most carefully prepared article, has brought the subject of acromegaly up to 1893, giving abstracts of all the cases reported since the publication of the above Sydenham Society re- port (The Journal of Nervous and Mental Diseases, Decem- ber, 1892, and January, 1893). Clinical History.-In acromegaly all of the pro- jecting portions of the body are generally enlarged, hands, feet, chin, lips, nose, tongue, ears, and often the genitalia. Of these parts the bones, cartilages, and soft tissues are all hypertrophied. There is more or less pro- gressive increase in weight, and generally increased ap- The cartilages of the nose are enlarged, as are generally the cartilages of the ears and eyelids. The soft parts of the nose and ears are also generally enlarged, and the nose is often massive. The cranial bones are rarely affected. The lower lip is more fre- quently enlarged than the upper, and always in excess of it. The face is oval, the cheeks flattened, the forehead retreating and low, the hair of the head strong and thick, and exophthalmos may be present. The bones of the thorax are always enlarged, notably the extremities of the clavicles, the costal cartilages, es- pecially at their junction with the ribs and the sternum, more especially at the xiphoid appendix. The ribs are generally widened, the scapulae may or may not be en- larged, and sooner or later the vertebrae and the inter- vertebral cartilages become affected, the latter thicken- ing and ossifying, causing kyphosis and other deformi- ties of the spinal column. On account of the kyphosis and the shortening of the neck, the long projecting chin often almost rests upon the sternum. The bones of the arm are generally not enlarged, except the lower part of the radius and ulna, thus causing an enlarged wrist. The bones of the hands, the metacarpal bones and the phalanges especially, are all widened and thickened. The soft parts of the hands are especially hypertrophied, giving the immense and often enormous acromegalic hands. The pelvic bones are generally enlarged, this being particularly noticeable at the pubis and the crests of the ilia. The thigh-bones are generally not affected except at the condyles, which are enlarged, and together with the almost constantly enlarged patellae produce enlarged knee-joints. The tibiae and fibulae may or may not be enlarged, though frequently there is some hypertrophy of the extremities of these bones. The ankle-joints are generally enlarged, and the feet-bones and soft parts are affected similarly to the hands, and, like the latter, are enormous. The heart, lungs, spleen, and liver are normal, although the heart may be slightly hypertrophied. The kidneys are generally normal, although there is often polyuria, but diabetes and albuminuria have sometimes been pres- ent. Pain in the head is the most frequent subjective symp- tom, often severe and even terrific. There may be, and frequently are, joint-pains, or pains referred to various parts of the body, more or less persistent, but neuralgic in character. Frequently there is tingling of the hands, feet, or ears, often ■with numbness of the fingers, but with no great loss of sensibility. There may be muscular hypertrophy, local or general, but later there is atrophy of the muscles. Taste and smell are rarely affected, hearing is occasion- ally disturbed, sight is frequently impaired. The voice is loud and deep. The reflexes are generally normal, at least not markedly impaired, and electrical reactions are normal. The intellectual faculties may or may not be impaired, but the memory is generally poor. Somnolency is some- times present. The superficial veins of the body are often enlarged, giving rise to hemorrhoids and varicose veins of the legs. The skin may be dry and harsh, and is generally great- ly thickened on the affected parts. There is often in- creased perspiration, local or general. The subcutaneous cellular tissue may be hypertrophied or atrophied. There is frequently an increased growth of hair on the body, especially on the arms and legs. The skin is often of a yellow color, especially marked on the face. Frequently molluscous growths appear on the face, neck, or body. Such are the notable symptoms of this interesting and peculiar disease. We will now enter into a more explicit description of the several symptoms. General Condition.-The acromegalic patient comes to the physician complaining of headache, disturbances of vision, severe joint-pains or ringing of the ears (one case, at least, Osborne); or the case is discovered while the patient is under treatment for an entirely different dis- Fig. 1.-Author's Case of Acromegaly. General View of Body. petite and increased thirst. Menstruation almost invari- ably ceases in the female, and the sexual appetite is generally diminished in the male. There is generally ■constipation ; there may or may not be dyspepsia or po- lyuria. The lower jaw is almost invariably enlarged, and gen- erally to such an extent that prognathism is present. The superior maxillary bones may or may not be en- larged. The malar bones are generally enlarged, ren- dering the cheek-bones prominent. The supra-orbital ridges are generally projecting, and the forehead retreat- ing. 3 Acromegaly. Acromegaly. REFERENCE HANDBOOK OF THE MEDICAfi SCIENCES. ease. The head appears too large for the body, and more careful inspection shows the face to be entirely too large for the rest of the head. The hands and feet are enormous, and out of all proportion to the arms and legs, and, if the case is at all advanced, humpback or kypho- sis is present. The family history and the previous history of the pa- tient himself have, up to the present time, been of no in- terest, so far as showing exciting or predisposing causes of this disease. There is never increased temperature unless due to an intercurrent affection. The pulse has been almost invariably normal, although it was stated to have increased in rapidity in one of the forty-six cases whose histories I have carefully examined (Godlee's case). There is rarely dyspnoea, and if present, only on exertion. The appetite is generally increased, and may be ravenous, although it is often stated to have been only normal. Thirst may or may not be increased. Consti- pation is frequently present. Polyuria and dyspepsia may be. Early History.-In women the cessation of the men- struation is generally the first symptom of the disease. In two cases there was a history, in the early stages, of profuse and recurring epistaxis (Osborne's and Barclay- Symmer's cases). From the patient or his family proof of the continuous growth of the head, hands, feet, and body can generally be elicited, and commonly an ap- proximate date for the beginning of the disease can be estimated. The increase in size of the hats, shirts, gloves, or shoes can always be ascertained, and are positive evidences of growth. In women the increase in the size of the fingers, as shown by the inability to longer wear the wedding-ring, which in many cases has been sawed off, is a positive evidence of growth frequently mentioned in the histories of the cases ; also in many instances earlier photographs of the patient can be obtained and compared with the present condition. These signs and facts show a positive and continuous growth, and careful examination of the parts affected shows that this growth is largely of the> bones. I could find no definite data as to an increase of height, but it probably does invariably somewhat in- crease until the period when kyphosis develops, at which time some loss of height may take place, even to six inches in Paget's case. The weight always, at least for a time, increases. Now, to examine the conditions more in detail we will begin with the head. Head.-We find the forehead low and retreating, due to the growth forward of the superciliary ridges, which, with the elongation and forward projection of the lower jaw, gives the oval or elliptical face so characteristic of this disease. The hair is thick and strong, and the eye- brows are often heavy. (In Boltz's case the hair was gray.) We next notice that the face is entirely too large, that it is out of all proportion to the cranium proper. The skin of the face is thickened, and of a yellowish brown color, most marked on the eyelids, with, perhaps, here and there a molluscous growth. The skin of the forehead is often redundant, and thrown into many transverse wrinkles or folds. The cheeks are generally flattened, and often appear sunken, largely due to the prominence and projection of the malar bones. The circumferences of the orbits are prom- inent, and the eyelids are large, due to the thickening and widening of the tarsal cartilages, with more or less hypertrophy of the skin, especially of the lower lid, where it may fall in folds, with occasionally the appear- ance of oedema. (In llolsti's case the eyelids wrere oede- matous.) The eyeballs are large and generally more or less prominent, even to the condition of exophthalmos. The nose, even for the size of the face, is too large, often immense, due to the thickening and enlarging of the nasal cartilages and to the great hypertrophy of the soft parts. It is wide, thick, and may be pugged. The superior maxillary bones may or may not be en- larged, but are frequently lengthened from above down- (SUPPLEMENT.) ward ; nevertheless, they are never enlarged to the same extent as is the lower jaw. The upper lip is generally thick and projecting, but never attains the size of the lower lip. The lower lip is almost invariably large, thick, everted, and projecting, and is one of the characteristic features. The enlargement of the lower jaw is one of the land- marks of this disease, although acromegaly can unques- tionably occur without the enlargement of this bone. The angle of junction between the rami and the body becomes obtuse, and, while the rami may grow to con- siderable extent, the chief growth is in the body. The body of this bone widens and thickens all over, but espe- cially on its alveolar border and at the symphysis, where the mental process becomes very prominent. " The rami, however, may be so enlarged and widened as to force outward the lower part of the external ear (Dulles' case). The teeth rarely partake of this growth (in the congenital case described by Cenas the teeth were all enlarged) ; hence the growth of the alveolar process soon tends to separate the teeth from each other by continually increasing intervals. The teeth may fall out spontane- ously (Mosier's case, aged forty-one years). Sooner or later prognathism generally occurs, due not only to the growth of the body of the lower jaw, but also to the widening of the angle and the changes in the glenoid fossa (see description under Pathological Anat- omy). This prognathism is of all degrees, and reached in Gause's case fifteen millimetres. The external ear is generally increased in size, some- times even appearing immense. The cartilages and the soft parts both take part in the growth, and the former may become in places as hard as bone. (The cartilage of the helix of the left ear in the writer's case has apparently developed into bone, while the helix of the right ear is very thick and hard.) The cartilages which form the outer portion of the ex- ternal auditory canal, as well as the bony walls of the canal, may take part in this disease, as in the writers case, where the canals are lengthened by the growth of the cartilages, and the bony canals are narrowed by the growth of exostoses from the superior walls. The bones of the cranium are generally not enlarged, but the ridges and eminences may be abnormally prom- inent, especially the occipital protuberance (Adler's, Cenas's, and Campbell's cases). In Massalongo's case there were spiky, osseous protuberances along the sut- ures of the skull, especially the lambdoid. The entire cranium is stated to have been enlarged in the cases re- ported by Adler and S. Solis-Cohen, while O'Connor's case showed some very atypical enlargements, or tumors, on the parietal bones. The mucous membrane of the nostrils is frequently found hypertrophied. The sense of smell is very rarely affected. (Much impaired in Godlee's case.) The tongue is broad and thick, and frequently of double its normal size, almost entirely filling the cavity of the mouth, so that the sides show indentations from the teeth. The upper surface of the tongue is often deeply corrugated, marked by deep lines and fissures, and the papillae may be prominent and projecting. During speech the massive tongue gives the impression of weight and clumsiness. By the large tongue and the prognathism the speech is rendered thick, heavy, and often slow, while the labial and dental sounds are poorly articulated. The tongue is generally clean, but Long found it, in his case, always covered with a grayish-yel- low coating. The soft palate is often thickened, the uvula may be wide and long, even as large as a little finger (Boltz's case), and the epiglottis has been found considerably thickened. The larynx is enlarged, either as a whole, or in one or more sets of its cartilages. The ary-epiglot- tic ligaments have been found thickened (Gause's case), and the vocal cords hypertrophied (Fratrich's case). These conditions render the voice loud and harsh, the voice in women becoming masculine, and in men of much lower pitch. The thyroid cartilage is often enlarged, as is also the- 4 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Acromegaly. Acromegaly, ■cricoid cartilage and frequently the hyoid bone. The submaxillary and other glands (lymphatics) of the neck may be enlarged (Adler's case). The thyroid gland may be normal in size, hypertrophied, cystic (Godlee's case), or so atrophied that it cannot be found. The neck is short and thick, and the head leans for- ward, which with the cervico-dorsal kyphosis causes the long projecting chin to almost rest on the sternum. Body.-Sooner or later, but almost invariably if the case is far enough advanced, the irregular formation and laying on of bone in the spinal column causes deformi- ties of the spine. This deformity is almost constantly a cervico-dorsal kyphosis (Hare's case was dorsal), giving a humpback appearance very characteristic of this dis- ease. Occasionally scoliosis is also present, and some- times a compensatory lumbar, or dorso-lumbar, lordosis. The spinous processes of the vertebrae are frequently found abnormally prominent, especially the lower cervi- cal. The circumference of the chest is greatly increased, especially at the level of the ensiform cartilage, where it is the greatest. Laterally the chest appears flattened, while the antero posterior diameter is often enormous. The sternum is generally widened and thickened, and projects outward, especially the hardened and enlarged xiphoid cartilage. There are often prominent transverse ridges on the sternum, and there may be a hollowing or apparent sink- ing-in in the region of the manubrium, due to the irregu- lar growth of the sternal segments. There may be tri- angular-shaped hollows at the sides of the sternum. A dulness on percussion is sometimes found at the upper end of the sternum, attributed by Erb and Verstraeten to an enlarged or persistent thymus gland, but though this gland has occasionally been found enlarged, Arnold has shown that the dulness is due to a thickening of the bone. The clavicles are most enlarged at the sternal extrem- ity, but the acromial end is also generally thickened. The ribs are wide and very oblique, and at their junc- tion with the more or less enlarged and ossified costal cartilages are generally found bony nodules, not unlike the rachitic rosary. The ribs are rendered oblique, and the lower ones are forced outward, by the great growth of the costal cartilages. The hardening of the ligaments and cartilages of the chest causes a peculiar stiff and constrained up-and-down, or out-and-in, motion of the lower part of the thorax during respiration, and the ab- dominal respiration is increased. In Packard's case the chest was very irregular, some of the ribs being very large and having numerous nodosities on their surfaces. In O'Connor's case there were distinct, circumscribed tumors on some of the ribs, and on each clavicle, at the sternal junction, was a sharp, inward projecting exos- tosis. The abdomen is generally flattened and even appears retracted from the forward projection of the sternum and costal cartilages, though in Massalongo's case the abdomen is stated to have been " bulky and pendant." The pelvis is generally enlarged in all parts, but the most marked hypertrophy occurs in the pubic bones, and in those at the symphysis pubis. The ilia seem to be wider apart, and the crests are broad and prominent. The penis is often enlarged, notably so in Cenas's case. The labi® major®, as well as the labite minor® may or may not be enlarged, the clitoris may be hypertrophied, and the vagina may be lengthened, but the uterus is generally small and atrophied. Upper Extremity.-The shoulder-joint may be, but rarely is, much enlarged ; the arm is small, at least not enlarged ; the elbow-joint may be increased in size ; the forearm is often enlarged at its lower third, especially just above and at the wrist ; the wrist-joint is almost always large. The hand, widened, thickened, and often lengthened, is massive and enormous, and appears heavy and cumbersome for the relatively small arm to carry. The ends of the metacarpal bones and phalanges are enlarged, giving prominent joints. The skin of the hand and the subcutaneous tissues are greatly hypertrophied, (SUPPLEMENT.) so that the normal lines of the palm are greatly deepened, even to the appearance of fissures in the flesh. At the upper part of the hand, and over the metacarpal bone of the thumb, and on the ulnar border, the hypertrophy of the soft parts is excessive. The fingers, by the growth of phalanges and soft parts, become of the same width and thickness at the tips as at the bases, giving the appearance called "sausage- shaped," which is a characteristic feature of this disease. The above-shaped fingers, with the great thickness of the soft parts over the metacarpal bone of the thumb and on the ulnar border of the hand, with the exaggerated palmar lines, and the abnormal proportion of the hand to the size of the forearm, render the acromegalic hand a landmark not easily forgotten. The fingers may appear somewhat flattened, and, ac- cording to Marie, there is often a manifest swelling at the articulation of the first and second phalanges. Fig. 2.-Author's Case of Acromegaly. View of Enlarged Right Hand. The nails are flattened, short, and sometimes widened, but always appear too small for the enlarged fingers, whose redundant flesh laps over them at the sides. The lateral borders of the nails sometimes curve upward when the hand is examined with the palm resting on the table (Marie). There are strongly marked longitudinal striations, sometimes even with ridges, and there may be transverse striations on the nails. They are also often brittle, breaking off or cracking easily. In Cenas's case the nail of one finger fell off sponta- neously and a new one developed. Lower Extremity.-The thighs are generally not in- creased in size, although the condyles of the femurs are generally prominent and enlarged, which with the hyper- trophy of the patellae causes a marked enlargement of the knees. The upper ends of the tibiae and fibulae may or may not be enlarged, but the lower ends of the leg- 5 Acromegaly. Acromegaly. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. bones are generally found hypertrophied, causing prom- nent malleoli and large ankle-joints. The tendo Achillis is frequently prominent and hardened, or " rope-like'' (Barclay - Symmer's case). The foot is described as " massive," " colossal,'' and " enormous." The bones of the feet are all enlarged and especially the os calcis, which projects backward, giving a marked prominence to the heel. The foot is thick and broad, with a promi- nent cushion of thickened skin and subcutaneous tissue on the external border, a characteristic feature of the foot in acromegaly. The toes are all large, but more especially the big toe, which is immense, and crowds the other toes together. The skin of the foot is redundant, hypertrophied, and thickened, especially on the toes, causing them to appear pushed back and turned up, throwing the skin into great folds on the upper sur- face of the toes. The nails of the toes present appear- ances similar to those of the fingers. The projecting os calcis, covered with a cushion of hy- pertrophied skin and fat, with the pad of hypertrophied tissue on the external border of the foot, with the im- mense big toe pushing against the other toes, and the re- dundant skin, makes the acromegalic foot as prominent a landmark as the hand. Asymmetry.-Acromegaly is primarily a symmetrical (SUPPLEMENT.) left hand were enlarged ; while, on the other hand, all the toes of the left foot were hypertrophied, and only the first, second, and fifth toes of the right foot. Also- peculiar in this case was the fact that the fifth toes on both feet were larger than the third and fourth toes. Litthauer's case showed a slight talipes valgus. Muscles.-At first the muscle-growth and muscular power are increased, and sometimes the development of the ntuscles may be very great, as in Virchow's case of the man Westphalen. Sooner or later, however, the' muscles become atrophied in greater or less degree, and the muscular power is greatly diminished, even to the point of compelling the patient to remain in a sitting or reclining posture, or even forcing him to remain in bed. There may be recurrent attacks of great loss of muscu- lar power, so that the patient must be assisted in his dressing, to be followed by periods of improved strength. The musqles of the arms and legs at this period are- flaccid and shrunken, and Virchow suggests that some- of the kyphosis and scoliosis may be due to muscular debility. Some of the muscles may be found atrophied, as Boltz observed in his case the pectoralis major and the supra- and infra-spinatus in that condition. On the other hand, even while this condition of muscular weak- ness is present, there may be hypertrophies of certain muscles. Mosier found the deltoid, supra-spinatus, rhomboideus, and biceps hypertrophied. In the writer's case, the- supra-spinatus on the right side is so greatly hyper- trophied as to constitute a large muscle-tumor, adding- greatly to the kyphotic deformity. Skin.-The subcutaneous fat may be increased or di- minished, but later is generally found diminished, ex- cept, perhaps, on the diseased portions of the body. The skin on the affected parts is hypertrophied, and generally, especially where exposed, is olive-brown or yellowish in color. This yellow color is most marked on the face, and here most noticeably on the eyelids. The face may, however, be pale, or the nose may be red, as in Mosier's case. The skin may be dry and harsh from diminished sebaceous secretion. There is fre- quently increased perspiration, coming on with slight exercise, or even without exercise, either general or local on the diseased portion of the body, and especially fre- quent on the legs. This perspiration may have a dis- agreeable odor. The growth of the hair all over the- body is generally increased. That of the head is thick, strong, and coarse, while the hair-on the hands and fore- arms, and more especially on the legs, is greatly in- creased. There may be pigmentations on the skin, as in one of Marie's, in Barclay - Symmer's, and in Massa- longo's cases. Litthauer speaks of the hands in his case- as being of a light bluish color, while in the very inter- esting case of Cenas there were various-sized and -shaded violet spots on the hands, feet, legs, and body, with also a stripe-like line of vitiligo on the inner and back part of the thighs and legs. Growths of molluscum fibrosum frequently occur on the face, especially on the eyelids, and on the chest or back, generally pendulous in charac- ter. Multiple fibromata of the skin may occur, of the size of a millet-seed, and, according to Mosier, are espe- cially apt to occur on the neck and in the hypochondriac regions. Fatty nodules may be found beneath the skin, and Litthauer reports, in his case, a 10 ctm. long and wide lipoma in the right supra-spinatus fossa. Blood-vessels.-There are always vaso-motor disturb- ances of the affected portions of the body, as shown by the tingling, flushing, and local sweating. The flushing is often accompanied by a "burning pain." Besides these signs, which denote the dilatation of the small blood-vessels, there is a marked tendency to a dilated and varicose condition of the superficial veins, which is frequently found on the legs. Hemorrhoids are often present, and Graham's first case had a double varicocele, and profuse epistaxis may occur. O'Connor's case had enlarged veins of the neck, and Cenas's case had dilated veins on the forearm. Hare's case had a hemorrhage from the lungs. Mosier says that the arteries, radial and temporal, may show signs of beginning atheroma. Fig. 3.-Authors Case of Acromegaly. View of Foot with Enlarged Toes. disease, one part enlarging correspondingly with Its fel- low on the other side, but in many cases it is recorded that one side of the body was larger than the other, and that the right half of the body was more frequently the larger. In a number of cases data are given showing the growth to have commenced in one foot or one hand, or both feet or both hands, before other parts of the body were affected. In fact, the growth probably generally starts in the hands and feet; later, the face and lower jaw are at- tacked ; next, the lower ends of the arm and leg bones ; next, the crests, tubercles, ridges, and eminences show growth, and about this time kyphosis develops, while lastly cartilages and tendons all over the body show bone-development. Besides the slight asymmetry of the two sides of the body, some atypical cases have oc- curred. In Kanthack's case the second toe of the left foot was enormously enlarged, far beyond the size of the other toes. In Canas's case the face, head, hard palate, cheeks, lips, and tongue were much larger on the right side than on the left. All the fingers of the right hand were affected, but only the thumb and first finger of the 6 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Acromegaly. Acromegaly. (SUPPLEMENT.) The blood has been many times examined, but, though the red corpuscles or the haemoglobin may be decreased, no marked or constant changes have been found. Internal Organs.-The lungs are normal, although there may be some dyspnoea, especially on exertion. The heart is normal, though often enlarged by simple hypertrophy ; the pulse is generally normal, but tachy- cardia was present in Massalongo's case. Boltz found a soft systolic blowing sound at the apex in his case, prob- ably haemic, while in Holsti's case there was mitral dis- ease. The liver and spleen are almost constantly normal in size. The kidneys, as interpreted by the examination of the urine, are generally normal, although polyuria is often present, and albuminuria may be (writer's case). Sugar has been several times present and persistent, and two cases, at least, are recorded as having died of diabetes (Bury's and Thomson's). Peptone has been found in the urine in acromegaly in a few cases (Graham's first case, Canas's case), being first discovered by Professor Bou- chard. Sight.-The eyes may be normal, but are frequently affected, in all degrees from occasional flashes of light (writer's case), or eye-blurs, to narrowing of the fields of vision and atrophy of the optic nerves, even to absolute blindness. Exophthalmos is often present, due both to actual enlargement of the eyeballs and to bone-growth in the orbital cavities. The pupils are generally normal in size but may be dilated (Long's and Ruttie's cases), and the reaction is generally as usual, though it may be slow to light but normal to accommodation. Nystagmus has been present in Boltz's case (rotatory nystagmus), in Long's case (which was blind) and in Packard's case (vertical nystagmus). Litthauer's case showed some strabismus divergens from insufficiency of both internal recti muscles, and Packard's case showed the same con- dition of the right eye. Marie says that we may early find, while vision is but slightly impaired, signs of optic neuritis caused by pressure. Narrowing of the visual fields has been found in all degrees even to bitemporal hemianopsia (Ruttie's, Packard's, Dulles's, Mosier's, Hare's, Boltz's, Schultze's, Striimpell's, Litthauer's, and Denti's cases). Optic atrophy, partial or complete, of one or both eyes, has frequently been found (Hadden and Ballance's, Ruttie's, Packard's, Hare's, and Boltz's cases, and in Long's case with total blindness). The re- tinae may show venous congestion, the arteries may be small, or they may appear pale (Massalongo's case), or a congestion as of a neuro-retinitis may be present (Denti's case). Hearing.-The hearing is not generally affected, but occasionally there has been decided deafness (Flemming's, Berkley's, and Osborne's cases). In two cases, at least, Barclay - Symmer's and the writer's, continuous and never-ceasing tinnitus aurium has been present, and Holsti's case complained of "rumbling and swashing" sounds in the ears. This ringing, or singing, in the ears is, in the writer's case, greatly increased on lying down, and often the patient, from this cause alone, cannot sleep at night but must remain in a sitting posture. The tin- nitus in this case is increased on excitation as well as on lying down, and is often of a pulsating character, though of a fine, high-pitched tone, when he is at rest. He refers the tinnitus to the middle of his head. The drum may be hardened and thickened, and so stiffened as to be im- movable. Smell and Taste.-These are but rarely stated to have been affected, though in Godlee's case both were impaired, and in Brignini's case taste was slightly affected. Nervous Phenomena.-A most constant symptom is pain in the head, which may be referred to any region, but is generally frontal or vertical, and in the writer's case was located in a small circumscribed spot, tender to pressure, over the region of the anterior fontanelle. This pain may be so mild that it is hardly complained of, or so se- vere, violent, and excruciating as to almost render the patient insane. Pain is often present in the joints, es- pecially the knees, and is often severe in the fingers. Pain is frequently complained of in the chest, or abdomen, shooting around the body, or confined to one side, or it may be lumbar or sacral. Almost every case of acromeg- aly has pain, more or less constant and severe, in some part of the body, generally without any local cause. The pain in the head, however, I believe is often due to the enlarging pituitary body, though at other times probably to the dilatation of the blood-vessels of the brain ; hence the increased headache on lying down, with the feeling of pressure, as has been the condition in several cases. Crepitations may be found in some of the joints, which, of course, would account for the pain there, though there is no swelling or signs of acute inflammation. Pain sometimes seems to centre at one of the small fibromata which occasionally develop in the skin. Sometimes a peculiar nervsus sensation is complained of, a sensation as of a nervous discharge, or electric shower, starting from the top of the head and passing quickly over the body to the feet. This is sometimes described as giving the sensation of the rolling of shot, hence it has been termed the " shot feel." There are no marked or constant parsesthesiee in acro- megaly, though slight numbness or prickling of the af- fected parts is often found, most frequently in the fingers. The tactile sense of the fingers maybe impaired, so that small objects cannot be readily handled, and sewing, knit- ting, or even dressing, becomes difficult. Where this con- dition is present it may become much improved, though the growth of the body and the advance of the disease may continue (Mosier's case). Of course, there is always clumsiness in the use of the fingers from the size alone. In Mosier's case the fingers would, at times, be- come pale and white, accompanied by severe pain, es- pecially at night, evidently due to vaso-motor spasm. Formication of the affected parts may be complained of, and in Adler's case there was hyperaesthesia of all the hypertrophied parts, even slight pressure causing the pa- tient pain. Ruttie's case had in the early part of the disease numbness all over the body. Permanent anaes- thesia, analgesia, or impaired perception of heat or cold are certainly rare conditions in this disease. The electrical responses of the muscles and nerves are rarely found abnormal. The reflexes, both deep and superficial, are generally unimpaired. Occasionally the patellar reflexes are di- minished, and sometimes absent on one or both sides (Packard's and Strembo's cases). The mental faculties in the majority of cases are not impaired, but still in a large number of cases it is re- corded that there was loss of memory, or apathy, or dulness and sluggishness of the mind, with or without a depressed state. Marie says that there may be a state of great good humor, but, on the contrary, the condition of melancholia is more frequent, and even suicidal tenden- cies may develop. There may be great irritability (Packard's case), while there may be delusions, and the patient may be refrac- tory and suspicious (Berkley's case). Pick's case showed at times decided insanity, and the patient finally com- mitted suicide. The writer's case, also, five years ago, for a period of four weeks, had frequent attacks of mental aberration, in which he not only attempted to commit suicide but showed homicidal tendencies. Another interesting condition which seems to quite frequently occur in acromegaly is somnolency. An excessive example of this somnolency was Packard's case, which had three attacks, the first lasted for three weeks, and the second and third lasted even a longer time, the last becoming a profound stupor, so that for days at a time the patient lay with the eyes open, but could not be aroused. This patient, however, came out of this condition, and was able to leave the hospital. This somnolency is, however, generally only a drowsi- ness, with a constant desire to sleep. Vertigo may occasionally occur, and be severe enough to cause the patient to grasp something for support, and also there may be attacks of syncope. Ruttie's case, one year after the stoppage of menstrua- tion, was seized with a sudden attack of dizziness fol- 7 Acromegaly. Acromegaly. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. lowed by total loss of consciousness, and for three weeks it was thought that she could not live. Convalescence was slow, interrupted by relapses of agonizing pain and vertigo, with loss of consciousness. These attacks be- came less and less frequent, but loss of consciousness could be produced at any time by a playful slap on the shoulder, or by the slamming of a door. Pituitary Enlargement.-Exactly how frequently pitui- tary enlargement takes place, of course, cannot be stated. A number of autopsies have been made in which the pituitary body was not enlarged. Clinically, I believe, a positive sign of the enlargement of this body to be im- pairment of vision. Out of thirty-three cases stating the condition of the eyes, eighteen had impairment of vision, of a greater or less degree, while in fifteen the vision was normal. In these eighteen cases there was pituitary en- largement, in all probability, with pressure on the optic tract or chiasma, and it is not at all improbable that some of the fifteen negative cases may later show loss of vision. In the cases in which tinnitus aurium is con- stantly present I believe it is often due to the pressure of the enlarging pituitary body, laterally, upon the cav- ernous sinuses. It also seems probable that the condi- tions showing sudden and serious brain trouble, as in Packard's, Berkley's, Pick's, Buttle's, and the writer's cases, all of which point to cerebral tumor, are due to the first sharp pressure which the enlarged pituitary body exerts upon the brain, having perhaps suddenly burst from its bony moorings. That in some cases one eye, in others both, and in still others the ears alone are affected, seems to me could be explained by the condition of the bony environments of the sella Turcica in the individual skull, the enlarging pituitary body tending to press in the direction of the least resistance. The middle clinoid processes being small the earlier will the pressure be exerted on the optic commissure, or if one of these processes is smaller than the other the pressure will first be exerted on that side, and one eye may be affected. The following table shows the frequency of some of the most important symptoms of acromegaly : it has been compiled from thirty-four original articles of true cases of acromegaly, plus the abstracts of twelve cases for which I am indebted to Dr. Joseph Collins. These forty-six cases have been taken at random, and the com- pleteness with which each case was reported varies greatly, but the statistics here appended may be of some value. In no case is a symptom considered as present or absent unless positively so stated to be ; consequently the frequency with which any symptom is present or absent must be compared with the number of cases re- porting it, and not with the forty-six cases. (SUPPLEMENT.) Important symptoms. Number of cases. Symptoms present. Symptoms absent. Pelvis enlarged 7 4 3 Generative organs enlarged... 7 4 3 Arms enlarged 19 4 15 Forearms enlarged. .. 12 5 7 Fingers sausage-shaped .. 9 9 0 Nails short, and broad 16 14 2 Wrist enlarged 10 9 1 Crepitation in joints 8 3 5 Legs enlarged 19 10 9 Knees enlarged 5 5 0 Patellae enlarged 8 7 1 Ankles enlarged 5 5 0 Varicose veins of legs 8 7 1 Albumin in the urine 19 2 17 Sugar in the urine 24 4 20 Skin yellow 8 7 1 Increased growth of hair 12 8 4 Paraesthesiae 21 16 5 Muscular atrophy 12 11 1 Muscular hypertrophy. 4 4 0 Increased strength 6 4 2 Diminished strength 22 20 2 Increased perspiration 15 13 2 Pain in some part of body 17 16 • 1 Headache 27 23 4 Somnolency 9 8 1 Intellectual faculties impaired.. 27 16 11 Increased appetite 20 10 10 Increased thirst 16 9 7 Polyuria 10 6 4 Constipation 9 8 1 Dyspepsia 6 2 4 Pathological Anatomy. - Eleven autopsies, at least, have been made upon cases that have died while suffering from acromegaly. Three of these cases were not diagnosed until after death, and after the autopsical reports had been on record for some time, viz.: Brigidi's, Henrot's, and Thomson's. The other cases are those of Klebs, Broca, Virchow (Fraentzel), Holsti, Bury, Arnold, Sarbo, and Gonzalez Cepeda. Seven of these cases showed either a hypertrophied pit- uitary body (Brigidi's, Klebs's, Broca's* Gonzalez Cepe- da's, Thomson's) or a tumor excavating the sella Turcica (Henrot's, Bury's). Brigidi's case furnishes a skeleton very typical of this disease. Henrot's case has been considered to be a case of myxoedema, but the positive bone enlargement certainly proves it to have been a case of acromegaly. In this case there was mucoid degenera- tion of the pneumogastric and glosso pharyngeal nerves, of the brachial plexus, and of the ganglia and cord of the great sympathetic, while a tumor was located in the re- gion of the pituitary body. Thomson gives a very careful description of the skel- eton of a case of acromegaly, the autopsy and history ol which had been reported by Dr. I). J. Cunningham under the title of "A Large Subarachnoid Cyst Involving the Greater Part of the Parietal Lobe of the Brain." The pituitary body in this case was greatly hyper trophied, being four or five times its usual size, and though soft and pulpy had caused considerable enlarge ment of the sella Turcica. The brain itself was alsc enlarged. Klebs found not only enlargement of the pituitarj body, but also a large thymus gland. The brain in this case was also enlarged, and there was thickening of th( cranial nerves, especially the oculo-motor and optic. Broca made the autopsy and described the skeleton ol one of Marie's first cases. He also found an enlarged pituitary body. Virchow showed and described the skeleton of th< case of Fraentzel. In this case the pituitary body was normal. Holsti found in his case an enlarged brain, and a large pulpy pituitary body. He also considered the crania nerves to be broader than normal. There was a fattj growth in the region of the thymus. In Bury's case there was a large tumor at the base ol the brain, a glioma, excavating the sella Turcica, pressing upon the optic chiasm, and extending to the cerebellum There were traces of what may have been a persisten thymus. Important symptoms. Number of cases. Symptoms present. Symptoms absent. Hands enlarged 46 46 0 Feet enlarged 45 45 0 Lower jaw enlarged 37 36 1 Eyes affected 33 18 15 Kyphosis 23 21 2 Prognathism 17 15 2 Lower lip enlarged 27 26 1 Upper lip enlarged 18 15 3 Nose enlarged 29 29 0 Tongue enlarged 31 31 0 Voice changed 24 23 1 Taste impaired 14 2 12 Smell impaired 11 1 10 Hearing impaired 20 4 16 Ears enlarged 23 13 10 Face elliptical 20 18 2 Forehead low 10 9 1 Supra-orbital ridges large....... 16 13 3 Malar bones enlarged 21 17 4 Superior inaxillte enlarged 9 4 5 Exophthalmos 5 5 0 Eyelids enlarged 10 6 4 Cranium enlarged 10 3 7 Clavicles enlarged 21 18 3 Scapulai enlarged 9 4 5 Sternum enlarged 12 10 2 Costal cartilages enlarged 8 8 0 Lordosis 7 4 3 Scoliosis 11 8 3 8 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Acromegaly. Acromegaly. Arnold gave a very exhaustive and careful description of the skeleton of Friedreich's case, viz., one of the brothers Hagner. Marie does not consider these brothers to have had acromegaly at all, and gives several valid reasons for his opinion, but I cannot but think with Vir- chow, Arnold, Mosier, and Erb that they did suffer from acromegaly. They are, however, very atypical cases, and there was unquestionable elephantiasis of the legs present. The pituitary body was normal in Arnold's case. Sarbo found in his case, which had had syphilis, evi- dence of peri-encephalitis chronica. The pituitary body was normal. Gonzalez Cepeda found an enlarged pituitary body. Such are the special points of interest in these several cases. The constant pathological findings in acromegaly are enlargement of the bones of the hands and feet, and almost invariably enlargement of the lower jaw. The ends of the long bones are very generally found enlarged. The pituitary body, as we have seen, may or may not be enlarged, but if we take into consideration the number of cases still living that have shown positive signs and symptoms of pituitary enlargement, we cannot but agree with Marie and Broca that it is a pathological finding of great importance. On the other hand, an enlarged thymus gland (Klebs and Erb) or the possible fragments of a persistent thymus have been found so infrequently as to present no patho- logical importance in this disease, but is rather a curios- ity. As to the thyroid gland, which Marie at first con- sidered to be almost always atrophied in this disease, though still a factor of great interest and careful examin- ation, it has not shown any very constant condition, either clinically or pathologically. It may be enlarged and hard (Holsti), enlarged and cystic (Bury), normal (Virchow, Sarbo), or diminished in size. The lungs are not affected (Sarbo found phthisical processes in the lungs of his case); the heart may or may not be hypertrophied ; the liver and spleen are normal (both diseased in Holsti's case, liver enlarged in Bury's case). The kidneys may or may not be found diseased. The nerves, as stated above, may be affected, and Ma- rie thought that there was constant hypertrophy of the cord and ganglia of the sympathetic system. The spinal cord does not seem to have been carefully examined. Syringomyelia was present in Holschewnikoff's case (if indeed this was a case of acromegaly) and mucoid de- generation in Henrot's case. The cerebrum has been found increased in weight, which is due to a general growth, and Klebs found that there was an increase of the neuroglia cells, but in direct proportion to the gen- eral enlargement of the brain-substance. There is widening of the blood-vessels and thinning of their walls, especially of the veins, as was. first pointed out by Klebs and Erb. The valves of the veins have been found enlarged. The thinning of the vessel-walls weakens them, especially the veins, and, as a result, we frequently find a varicose condition of the veins of the legs, haemorrhoids, and enlarged veins of the arms, neck, or head. The epistaxis noticed in two cases (Osborne's, Barclay - Symmer's) may have been due to the same cause. Klebs found an increase of the cells in the walls of the blood-vessels, which he considered to be the cause of the widely distributed new growths of blood-vessels, or angiomatosis, and this the cause of the tissue hyper- trophy. Von Recklinghausen, however, found no such indication of growth of new blood-vessels. The muscles at the time of death, unless the patient dies early in the disease from some intercurrent affection, are found very generally atrophied, although there may be local hyper- trophies. Certain muscles, especially the deltoid or su- praspinatus, may become markedly hypertrophied, form- ing veritable muscle-tumors. One side of the body, most frequently the right, may and often is, larger than the other, both in the size of the bones and of the soft parts, but more especially the latter. Von Recklinghausen, with Marie and Mosier, does not agree with Virchow in calling an enlarged extremity a " partial acromegaly." (SUPPLEMENT.) The subcutaneous fat may be increased or decreased in thickness, but in the later stages it is probably nearly always decreased. The skin is hypertrophied over the affected portions of the body, sometimes enormously. All the layers of the skin take part in this thickening. Elephantiasis has occurred in three cases-the brothers Hagner and in Lombroso's case. In the former cases.the legs were affected ; in the last case the forearms and face. Von Recklinghausen says that fibromata and neuro- mata of the skin can be present in considerable number in acromegaly. Molluscous growths are of frequent oc- currence. Now turning to a critical survey of the skeleton, we find that we are indebted to Broca, Virchow, Arnold, and Thomson for the careful study of the condition of the bones found in this disease. Broca says that the enlarge- ment of the bones is in the extremities, and at the ends of the bones. He also says that it is the spongy tissue of the short bones and flat bones that is affected, and the epiphyses of the long bones. Holsti, however, found the compact substance of the bones thicker than normal. This growth of bone is an hypertrophy, the bone grow- ing from the periosteum, and in the medullary spongy tissue at the ends of the long bones. The growth in the early part of the disease seems to be more especially con- fined to the periosteum ; later, the apophyses and epi- physes become affected ; next, the crests, tuberosities, and eminences enlarge and grow in the direction of the mus- cular action. The tendons are often found in deep grooves or bony canals, and the foramina for the nutrient arteries are enlarged. Osteophytes may be found in the joints, especially over the wrist- and ankle-joints, and the cartilages show bone developments. The spongy ends of the long bones now become more compact, the architecture changing, the bone-cells in- creasing, and eburnation taking place. The ends of the bones in Sarbo's case showed condensing osteitis. As Arnold showed, the long bones may apparently lengthen by the laying on of bone at the extremities, while the shaft is not at all affected ; and von Recklinghausen has suggested that the giant appearance of some cases of acromegaly could be due to the late union of the epi- physis with the shaft, the epiphysis becoming widely separated from the shaft by the new bone, thus causing a pronounced lengthening. Before turning to a more careful survey of the various bones, it must not be forgotten that the duration of the disease must be considered when examining any par- ticular skeleton, as widely different conditions of the bones are found at different stages. The bones of the cranium are often found thickened (Thomson's case had thickening of the cranial bones varying from 6 to 12 mm.) and hardened, true bone developing in the diploe, as well as the external and in- ternal plates becoming hypertrophied. The ridges and crests for the attachment of muscles and fasciae are more prominent, while the occipital protuberance has been found as a spicula-like outgrowth, an exostosis. The parietal eminences are sometimes abnormally prominent, as are always the superciliary ridges, the latter being due not only to the dilatation of the frontal sinuses (Bi'oca), but also to the thickening of the plates of the frontal bone in this region (Thomson). The sphenoidal sinuses have been found dilated (Broca), and also the antrum of Highmore. The lengthening of the face is largely due to the in- crease in the vertical diameters of the superior and in- ferior maxillae. The malar bones are almost always prominent and projecting, the ridges for muscle at- tachment being pronounced. The orbital cavities are large, widened transversely, with the borders prominent, especially at the external angle. Some of the sutures of the bones may be obliterated, as in the articulations of the superior maxillae and malar bones in Thomson's case. The external auditory canal may be increased in length by the growth of the cartilages and the formation of new bone. These canals may also be found narrowed by 9 Acromegaly. Acromegaly. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. exostoses. The glenoid cavities are increased in size, probably due, as Thomson suggests, to the large size of the condyles of the lower jaw. The eminentia articularis may disappear, giving an opportunity for the condyle to come forward, thus adding to the prognathism caused by the growth of the lower jaw. The lower jaw is described as massive, the chief growth being in the body, which is found lengthened and widened, especially at the symphysis, with the men- tal process prominent and projecting. The alveolar process is widened and thickened, and the rami also may partake of this growth, while the angle of junction be- tween the body and rami becomes more obtuse. In Thomson's case the coronoid processes extended upward more than one-third higher than normal. The growth of the alveolar process is rarely participated in by the teeth (except Cenas's case), they remaining normal in size, so that, the alveolar cavities enlarging, we frequently have spontaneous falling out of the teeth. The projecting lower jaw and lengthening of the chin, it must be remembered, are not always found in acro- megaly, as undoubted cases have occurred in which these conditions were absent. This growth of the lower jaw being present, on the other hand, with enlargement of the hands and feet, is, I believe, pathognomonic. Thomson found the margin of the foramen magnum sur- rounded by irregular protuberances of spongy bone. Whenever an enlarged pituitary body has been found the sella Turcica has been found deepened and enlarged in all directions, due to the bone wasting from pressure. The hyoid bone may be enlarged and its ridges very prominent. Changes are always found in the spine, the degree be- ing due to the age of the disease. The bodies of the ver- tebrae are enlarged, and especially from the laying-on of bone on the anterior part. In the cervical and dorsal re- gions the increase in bone is often restricted to the upper part of the inter-articular cartilages, while in the lumbar region the increase of the bone is more general. The spi- nous processes are enlarged, and the transverse processes may be. The irregular thickening of the inter-vertebral cartilages, with the irregular growth of the bodies of the vertebrae, sooner or later causes deformities of the spine, viz., kyphosis, lordosis, or scoliosis (Virchow-Fraentzel case showed alternate right and left scoliosis in the dorsal region). Anteriorly the spine may appear as one bone, due to the growth of spongy bone in the anterior ligament, forming bridges of bone connecting the vertebrae to- gether (Virchow-Fraentzel's, Thomson's). The sternum is enlarged and thickened, and the ensi- form cartilage is ossified, generally projecting outward. Often very large transverse ridges are found on the sternum, also a hollow or depression may be seen -at the upper part, due to to the manubrium not enlarging relatively to the body of the sternum. The costal cartilages are large, with more or less bone- formation, and with prominent cartilaginous or bony nodes at the junction with the ribs, simulating the ra- chitic rosary. The bone-growth in the costal cartilages may give an apparent great widening of the sternum. The ribs are wide and thick, and by the faster growth of the costal cartilages become abnormally oblique. Small bony tumors have been found on some of the ribs (O'Connor's case). The clavicles are always found enlarged at their ex- tremities, but more especially at the sternal end. A sharp, inward projecting spicula of bone, exostosis, was found in O'Connor's case. The scapulae are generally found enlarged, and more especially is the spine large and thickened. Thomson found the glenoid articular surface enlarged, due to the ossification of the glenoid ligaments. The articular surfaces of all the long bones may be roughened (Broca, Thomson), and there may be exostoses, spongy growths, and osteophytes in and around the joints. The humerus .may be thus affected, but is infrequently enlarged. The radius and ulna, if the case is of long standing, are found enlarged at the lower extremities, and, perhaps, at the lower third of the shafts. As be- (SUPPLEMENT.) fore stated, the ridges and protuberances are enlarged on all of the long bones, if the disease is at all advanced. The enlarged lower extremities of the radius and ulna, with the widened and thickened carpal bones, give the- large wrist and hand. The metacarpal bones and pha- langes are widened and thickened, the former especially at the head, and the latter at each extremity, causing the prominent joints. The phalanges are generally equally affected, but one set may be more affected than the other. The pelvis is almost always enlarged, especially the pubic bones. The symphysis is thick and deep, and the crests of the ilia are wide and prominent. Thomson- found the ileo-pectineal line on the right side raised into a prominent crest, and the acetabula enlarged by partial ossification of the cotyloid ligaments. The femurs are only enlarged at the lower extremities, viz., the condyles, as are also the heads of the tibiae and fibulae and the patellae. The malleoli are frequently found enlarged. Of the tarsus the os calcis is the most affected, growing backward into a prominent projection. The metatarsal bones and the phalanges are all enlarged similarly to those of the hands. Thomson found several of the phalanges of the toes ossified together. Etiology.-Thus far there has been no positive cause found for the occurrence of this disease. Various theo- ries have been offered, one of the most interesting of which is that by Freund. He suggested the probability that acromegaly was a disease of puberty or thereabouts, i.e., a disease of development, a possible returning to- type, the large hands and feet, projecting jaw, and retreat- ing forehead being certainly very suggestive. Klebs partially supported this theory, but laid great stress on the enlargement of the thymus gland. Virchow, however, does not support this theory of Freund at all. Professor Freund said that this anomaly of develop- ment had some relation to the condition of the develop- mental organs, to sexual development, and that the early cessation of menstruation or early loss of sexual power caused acromegaly. This theory is not supported by facts. The ages at which forty-six cases were discovered and reported are as follows: 2 cases in second decade of life (10 to 20 years), Cenas'scase and Hennig's daughter (Virchow-Fraentzel), 6 cases in third decade of life (20 to 30 years). 8 cases in fourth decade of life (30 to 40 years). 20 cases in fifth decade of life (40 to 50 years). 8 cases in sixth decade of life (50 to 60 years). 2 cases in seventh decade of life (60 to 70 years). It is here seen that two and one-half times as mahy cases first come for treatment, or are discovered, between forty and fifty as at any other decade of life. Four- teen of the 2Q cases which first came in the fifth decade (from forty to fifty), were between forty and forty-five years old. Of 39 cases giving data of more or less successfully es- timated age at which the disease started : 2 are congenital (Cenas' case and Mennig's daughter). 4 began in the second decade (10 to 20 years). 16 began in the third decade (20 to 30 years). 12 began in the fourth decade (30 to 40 years). '5 began in the fifth decade (40 to 50 years). This shows nearly three-fourths of these cases to have begun between the ages of twenty and forty, and 33 of the 39 cases after twenty years of age. By the above facts I fail to see how the Freund theory is tenable. Sex does not seem to bear any special relation to the dis- ease. Out of 50 cases, 27 were women and 23 men. Of 13 women who were at an age at which menstru- ation does not normally cease, 9 had cessation of men- struation as a first symptom, while 4 menstruated for a time after the beginning of the disease, but soon stopped. One case, a woman aged fifty-three (Harris's case), had had acromegaly for twenty years, but had a child at forty-three years of age. 10 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Acromegaly. Acromegaly. (SUPPLEMENT.) Of 12 cases of men in which it is mentioned, 10 had diminished or lost sexual power, while 2 were normal in this respect. I believe these phenomena are only symptoms, and can- not attribute to them, as does Freund, a causative relation to this disease. While the cessation of menstruation is unquestionably an early and a very frequent symptom, it is not constant, and is only a symptom. The loss of sexual power in the male is a gradual loss, diminishing with the progress of the disease. Virchow and Verstraeten both find no causative relation between the generative organs and acromegaly. Klebs and Fritsche found an enlarged thymus gland in their case, while Erb found, in three cases, a dulness at the upper part of the sternum which he attributed to an enlarged thymus. Klebs at first thought that this gland, being enlarged or persistent, might have some- thing to do with the increased growth of blood-vessels and tissue. Later autopsies, however, have proved this gland to be generally absent, and Arnold has shown, as before mentioned, that the thickening of the sternum in the region of the manubrium could give the dull percus- sion note sometimes heard. These facts preclude the enlarged thymus from the position of an important fac- tor in the etiology of this disease. Of 19 cases giving data on this point, 15 are recorded as having no dulness at the top of the sternum, while in 4 cases dulness was found. The thyroid also has come in for a share in the etio- logical interest of this disease, but its condition is found to be so varied that it is only of symptomatic importance. Out of 32 cases making record of the condition of this gland, it was atrophied 14 times, enlarged 8 times, and normal 10 times. On the other hand, of more than ordinary interest is the pituitary body, which has so many times been found enlarged in autopsies of this disease, and so frequently can be diagnosed as being in that condition in living cases. Of 33 cases of acromegaly reporting the con- dition of the eyes, 18 had eye-changes, more or less severe, and 15 at the time of reporting had no eye-changes, while 4 had ear-trouble. Headache, sometimes violent, is a very frequent and almost constant (23 times out of 27 cases) symptom. Though acromegaly can surely occur without enlargement of the pituitary body, still we must acknowledge that it stands very close to some etiological factor (angiomatosis, or neurotic origin). Nativity does not play any important part in the causation of acromegaly, although a number of the cases reported in America have been Germans. One case (Berkley's) occurred in a negress ; hence the colored race is not exempt. As to the hereditary history in 46 cases, rheumatism was stated as present in the families of 2 of them, 3 had tuberculosis in the family, and 2 had a neurotic family history. The Hagner brothers, atypical cases of acromegaly combined with elephantiasis of the legs, were similarly affected. The daughter of Mennig (Fraentzel's case of acromeg- aly, whose skeleton was exhibited by Virchow) had the disease ; and Fratrich says that the father of his case had large hands like the patient. As to the personal history of 46 cases, rheumatism was stated to have been present 5 times, 1 had had asth- ma, 1 pleurisy, 1 a winter bronchitis, 1 pneumonia, 1 abscesses of each hip, and 2 had had a severe typhoid fever, from which the disease could be dated, while 1 case (Massalongo's), when twenty-two years old, had "loss of consciousness and delirium, which lasted forty days, called cerebral fever." Klebs is inclined to refer this disease to the vascular system, regarding it as an angiomatosis, and Gauthier agrees with him. We certainly frequently find varicose veins, sometimes hemorrhoids, and occasionally vari- cocele and epistaxis, but we do not find blood-vessel growths, and von Recklinghausen could not find indica- tions of actual growth of new vessels. There is fre- quently a burning and flushing of the affected parts, showing an increased blood-supply, due to the dilatation of the blood-vessels, probably of vaso-motor origin. The blood, though many times examined, has shown nothing of moment. Von Recklinghausen believes that this disease is of neurotic origin. He says that acromegaly may be caused by vaso-motor disturbances -which may cause neurotic hypersemia, going on even to inflammation of the nerves. This would explain the condition of a few of the nerves found at some of the autopsies. The widening of the blood-vessels and the thinning of their walls, especially of the veins, can well be the result of such abnormal innervation of the vessels. He also thinks that the dis- turbance of menstruation can be explained by this general angioneurosis. It is also known that disturbed nervous conditions can cause hypertrophies of both bones and soft parts. On the other hand, except the conditions in the brain due to direct pressure from an enlarging pituitary body, but few signs or symptoms referable to the nervous system are found. In forty-six cases some mild paraesthesise were stated as present sixteen times, such as numbness, prickling or formications, generally in the hands, some- times in the feet or ears. The "shot-feel" was twice mentioned, once vertigo, and twice fainting attacks. Sensibility and electrical conditions were always normal. Six times it was stated that the patellar reflexes were diminished or absent. Hence, in these forty-six cases there was no serious lesion of the nervous system, except the trouble caused by the pituitary body. Holschewni- koff's case of syringomyelia, with enlargement of the bones (acromegaly ?), was probably a mere concidence. Although, then, acknowledging that we have not yet dis- covered the origin of this disease which affects nerves, blood-vessels, glands, bones, cartilages, tendons, muscles, skin, and nails, I believe that the spinal cord, especially the vaso-motor centre, and the sympathetic system fur- nish the most promising field for future research. Diagnosis.-This disease must be diagnosed from myxoedema, gigantism, erythromelalgia, elephantiasis, leontiasis ossea, chronic rheumatism, syringomyelia, rachitis, osteitis deformans, arthritis deformans, osteo- arthropathie hypertrophiante pneumiqve, local hypertro- phies, and adiposis dolorosa. More than one case of acromegaly has been described under the name of myxadema. Myxoedema is an affec- tion associated with an increase of the subcutaneous fat and connective tissue, and is characterized by a mucoid deposit in the skin and some of the internal organs, with marked changes in the thyroid gland and in the sympathetic nerves. There is swelling of all parts of the face, tongue, throat, and larynx, but generally there is no pitting. The hands become large and clumsy, and there may be pain in the joints and head. There may be loss of hearing, choked disk, and impaired mental faculties, even to dementia in the last stages. The principal clinical differences between these two- diseases are as follows: Myxoedema. 1. About eighty per cent, of all cases are women. 2. Occurs most frequently be- tween the ages of forty and fifty. 3. Bones are never enlarged. 4. Face has the appearance of a "full moon " (Sir William Gull). 5. The ends of the fingers are swollen and clubbed. 6.' The skin is pale, waxy, puffy, boggy, and shiny. Acromegaly. 1. Both sexes are about equally affected. 2. Begins most frequently be- tween the ages of twenty and forty. 3. Bones are always enlarged. 4. Face is oval or elliptical. 5. The ends of the fingers are the same size as the bases, i.e., " sau- sage-shaped." 6. The skin is yellowish, wrin- kled, and hairy. Gigantism, or giant growth, is distinguished from acromegaly by the fact that in the former there is sym- metrical and general growth all over the body ; the cra- nium grows as much as the facial bones, and the face does not look too large for the head, nor the head too large for the body, as is the case in acromegaly. 11 Acromegaly. Acromegaly. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. In gigantism the ends of the bones are not enlarged out of proportion to the size of the shaft, and the hands and feet are not enlarged out of proportion to the arms and legs. The bones increase in length as well as in width and thickness, and that symmetrically, and the whole growth of the body is in proportion, as in a nor- mal individual, all of which is quite the contrary in acromegaly. In gigantism there is no projection of the lower jaw, there are no nervous phenomena, there are no eye and •ear symptoms. The nose, ears, lips and tongue are not increased in size out of proportion to the size of the head, face, and mouth. The foot in giant growth is in normal relation to, or even too small for the length of the body, according to Virchow. He says, normally, the foot is one-sixth the body's length, and in gigantism the height is more than six times the length of the foot, while in acromegaly the height is always less than six times the length of the foot. In acromegaly the bone-growth and hypertrophy are always at the ends or extremities of the long bones, and never is the shaft lengthened, although an apparent lengthening may take place due to a laying-on of bone at the ends, producing an actual increase in measurement, but -without growth of the shaft. In erythromelalgia, a vaso-motor neurosis of the ex- tremities, there may be some increase in the size of the hands or feet. There may be, according to Weir Mitch- ell, severe pain of the part, and there is always an im- paired blood-flow, giving burning sensations, local red- ness, and even cyanosis, often in patches or spots. Cenas's case, with its peculiar pigmentation, is the only case of acromegaly that has markedly simulated erythromelalgia. In the latter disease, however, there is no enlargement of the bones or soft parts of the face, no eye symptoms, no marked change in the speech, and the hand itself is un- like the acromegalic hand, the fingers are not sausage- shaped, but smaller at the tip than at the base. Elephantiasis arabum is a hypertrophic disease of the skin and subcutaneous tissue, located generally in one, ■occasionally in two extremities of the body. There is generally a history of several attacks of local inflamma- tion of the part affected, followed by a continuous growth and hypertrophy of the skin, until an enormous size is reached. The hypertrophied skin falls in great folds, fissures form, and the part becomes one immense, homo- geneous mass, without form or shape, and sections show a fibrous tissue without nerves or blood-vessels. How different is this picture from that of acromegaly, where all of the extremities are enlarged, or at least one after the other, and the parts never lose the normal curves, prominences and hollows, and, though large, pre- serve their normal contours. Again, in elephantiasis the bones are not enlarged, the skeleton is not affected, and the nervous, facial, and cere- bral phenomena are not present. Leontiasis ossea is the name given by Virchow to the condition where osteophytes, or bony tumors, are formed on the face and cranium. These bony tumors are of irregular distribution, and produce great deformity and asymmetry. There is no hypertrophy of the limbs. Though this disease has been several times mentioned in the diagnosis of acromegaly, I fail to so see how it could be confounded with the general constitutional disease of acromegaly with its manifold signs and symptoms. During the first stages of acromegaly one of the fre- quent symptoms, and often a prominent one, is joint-pain, which at this stage might confuse the diagnosis with that of chronic rheumatism. The joints at this time are tender to the touch, but are not reddened or swollen. The pain is not permanent in any one or two joints, and ankylosis does not take place, although later crepitations are often present, and some contractures of the fingers may be found, as in Canas's case, due to the flexor tendons not growing as rapidly as the bones. As soon as the hands, feet, or face begin to enlarge, the diagnosis from chronic rheumatism becomes plain. Syringomyelia is a disease of the nervous system, char- acterized by a " gliomatous new formation about the cen- (SUPPLEMENT.) tral canal of the spinal cord, with cavity formation " (Osler). This disease generally begins before twenty, or in early adult life, and in its slow development and long dura- tion simulates acromegaly. After the complete develop- ment of either disease, however, " the amyotrophic pa- ralysis, with retention of tactile and loss of thermic and painful sensation " (Osler), on the part of the syringo-my- elia, and the enlarged extremities, the formation of the face and chest, to say nothing of the pituitary enlarge- ment, on the part of the acromegaly, render the diagnosis easy. Holschewnikoff has reported a case of syringomyelia, with thg formation of gliomata in the spinal cord, to- gether with degeneration of some of the peripheral nerves, in -which there was decided bone-growth of the extremities, in fact an acromegalic condition. Rachitis is a disease of childhood, or rather babyhood, occurring most frequently in children under three years of age. This alone would exclude the possibility of con- fusion with acromegaly, except in congenital cases. Rickets is pre-eminently a disease of impaired bone-for- mation, as instance slow development or entire absence of the teeth, and impaired growth or softening of the bones, while acromegaly, on the other hand, is pre-eminently a disease of increased bone-formation. The ends of the bones, especially the epiphyses of the wrist, unquestionably are enlarged in rickets, while the hands and feet may be flattened and apparently widened, but there is no increase in the thickness of the hands or feet. The bones of the head show no malformation, ex- cept flattening and lengthening of the cranium with pro- jection of the occiput, and the softened spots. This causes the cranium in rickets to appear too large for the face, while in acromegaly the face appears too large for the cranium. Also in rickets we find deformation of the pelvis, and if the child creeps, deformities of the arm-bones, and if he walks, bending of the leg-bones. This is quite differ- ent from acromegaly, where we have -widening, harden- ing, and general growth of the bones. Softening of the ribs causes a sinking in just before the junction with the cartilages, giving the formation of the rachitic rosary, which from another cause we find in acromegaly. Kyphosis, when it occurs in rachitis, is in the dorsal region, while in acromegaly it is almost invariably in the cervico-dorsal region. It is thus seen that it is hardly possible to confound the one disease with the other. The diagnosis between the osteitis deformans of Paget and acromegaly is generally not difficult. The following schedule will show some of the marked differences : Osteitis Deformans. 1. Rarely occurs before fifty, never before forty years of age. 2. The long boiies are the ones primarily affected, rarely are the hands or feet affected. 3. Long bones are often curved, giving great deformity. 4. Often one limb or one bone is affected long before another limb or bone. 5. The cranial bones are affected, rarely the facial. 6. Lower part of face is narrow, giving a triangular appearance to the face. Acromegaly. 1. Very generally begins before forty years of age. 3. Hands and feet are enormous, rarely' tire long bones much affect- ed. 3. Long bones are normal in shape, possibly thickened at the extremities, but are never curved. 4. Hands, feet, arms, and legs generally nearly symmetrical. 5. The facial bones are affected, rarely the cranial. 6. Lower part of face is broad, giving an elliptical appearance to the face. The above gross, to say nothing of more minute differ- ences, will generally readily make the diagnosis of oste- itis deformans from acromegaly. Arthritis deformans, perhaps, approaches more nearly than any other bone disease to the external conditions found in acromegaly. In arthritis deformans decided changes take place in the articular tissues, accompanied by pain, with sooner or later great deformity and anky- losis of the joints. Tender nodules may appear in the muscles, while the muscles themselves become atrophied. 12 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Acromegaly, Acromegaly, The disease is apt to attack the same joints on both sides of the body symmetrically, but soon spreads to all of the joints. The hands । are thin from the wasting of the fat and muscles, but the ends of the phalanges and metacar- pal bones may be enlarged and nodular. The fingers are more or less flexed and turned toward the ulnar side of the arm, while the joints of the hand are all stiff and more or less completely ankylosed. How different is this condition from the acromegalic hand ! Within the joints bony or cartilaginous protuberances are found on the outer' surface of the epiphyses in arthritis deformans, while in acromegaly we may find osteophytes at the ends of the bones, as in the Virchow's skeleton, or the bony growths found in the joints of Thomson's case. Outside of this similarity in the joints between these two diseases there is no agreement of symptoms or appearances. The hypertrophy of the soft parts of the hands and face, with the enlargement of the bones of the face, with the cervico-dorsal kyphosis, enlarged tongue, changed voice and eye changes, if pres- ent, will all or any of them make the diagnosis from ar- thritis deformans. Schulz has reported a case of acrome- galy associated with arthritis deformans. In January of 1890, in the Revue de Medicine, appeared an article by Marie in which he described a new disease, and which he named osteo-arthropathie hypertrophiante pneumique. This disease, as its name implies, is char- acterized by a disease of the lungs with an enlargement of the extremities, and therefore simulates acromegaly. The affection of the lungs may be an empyema, a bronchitis, or neoplastic formations, and, according to Mosier, there is present a micro-parasite, the absorption of the products of which into the blood and the deposit of these in the joints produces a hypertrophic inflammation. The hands are enlarged, but principally in the joints and the ends of the fingers, the middle of the hand not being attacked. The elbow-, shoulder-, and knee-joints are all affected, and there is always more or less impaired motion. The wrist-joint is large, the hand proper not much enlarged, while the fingers are increased in size, especially the last phalanx, but the soft parts are not hypertrophied. The appearance of the finger-nails is also quite characteristic of this disease. They appear too large for the fingers, spreading out at the sides, and even curving over the ends of the fingers, often giving the appearance of the beak of a bird, while the enlarged ends of the fingers have caused them to be likened to drumsticks. Turning to the acromegalic hand, with its immense thickening of the hand proper, hypertrophy of the soft parts, equally enlarged phalanges, sausage- shaped fingers, small nails, much too small for the fingers, one might make the diagnosis by the hand alone. The bones in osteo-arthropathie pneumique are enlarged, but not the soft parts, while in acromegaly both are enlarged. In the former disease dorso-lumbar kyphosis may be pres- ent, while in acromegaly the kyphosis is cervico-dorsal. In Packard's case of osteo-arthropathie pneumique, how- ever, the kyphosis was cervico-dorsal (Am. Jour, of the Med. Sciences, June, 1892). The feet and toes in this disease are affected similarly to the hands. The face presents a different appearance from that of acromegaly ; it is more rounded, the lower jaw is very rarely enlarged (occurred in Packard's case), prognathism does not occur, the face appears small, the soft parts are not hypertrophied, and the lips and tongue are normal in size. Virchow proposes to call the local hypertrophies which are occasionally met with, where one hand, or one foot, or one finger or toe, or several fingers or toes, are in- volved, " partial acromegaly." Marie and Mosier do not accept this classification of these local hypertrophies, even if the bone of the part is enlarged, and I agree with them that these simple hypertrophies should not be confounded with the distinct disease of acromegaly. Marie says: "Let established names as macrodactylia and macropodia and unilateral macrosomia, etc., be pre- served, as the names for these peculiar localized hyper- trophies." These local enlargements of one extremity, or one (SUPPLEMENT.) finger, or one toe, are generally congenital, though they may increase in growth at the time of puberty, and the part is generally increased in length. One side of the face may be affected, involving bones and soft parts, in- cluding the tongue, tonsil, and palate on that side, but whatever the enlargement there is no symmetry. One more disease remains to be diagnosed from acro- megaly, viz., the disease recently described and named by Dr. F. X. Dercum, adiposis dolorosa {American Journal of the Medical Sciences, November, 1892). In this article he reports three cases, all women, where there was an enor- mous growth of fat. In the first case it was especially marked on the arms and body, where the fat fell in great folds. The second case showed an immense development of fat all over the body, but unevenly distributed in lumps and in folds ; she had headache, great weakness, and cardiac dyspnoea, but no mental impairment, and sight and voice were not affected. The autopsy of this case showed an indurated thyroid gland, with some de- posit of calcareous matter, and there was oedema of the lungs. The third case showed great development of fat on the upper arms, and especially on the abdomen, where the fat lay in great folds or tumors. She was somewhat deaf, apathetic, and had headache. This case also came to autopsy. The thyroid gland was larger than normal and somewhat calcified, but nothing else of moment was- found. Dr. Dercum says that the nodules of soft tissue are at first deposited in one location, or, perhaps, in cor- responding places on the upper or lower extremities. Then other parts are attacked, though some portions of the body are left without much fat development, and soon pain and other nervous symptoms appear. In the first of these cases of adiposis dolorosa the thenar and hypothenar groups of muscles showed the reaction of degeneration. Electrical changes are never present in acromegaly. Also the absence of any marked enlargement of the hands, feet, and face, as well as no bone-growth, excludes confusion with acromegaly. Prognosis.-Marie estimates the duration of this dis- ease to be from ten to twenty years. Of twenty-five cases giving the estimated duration only three have died, but the average duration of the disease in the twenty-two living cases is twelve and one-half years. Fifteen of the twenty-five cases are over terf years in duration, and six over twenty years, while the range is from three years to thirty-four years (Bury's, and Gra- ham's second case, both dead). This disease is one of continuous progression, espe- cially in the growth of the bones. Under treatment, or without treatment, periods of apparent quiescence, or periods of cessation of symptoms occur, and the soft parts of the hypertrophied portions of the body not only may not enlarge but actually appear diminished in size. Yet even in such cases the bones continue to grow. These periods, when the patient may say he feels well, are, sooner or later, followed by marked exacerbations of all the symptoms, often coming on suddenly, even pre- cipitately. These symptoms, all of which may be ameli- orated by treatment, are severe headache, often dizzi- ness, great constipation, troublesome dyspepsia, aggra- vated eye or ear symptoms, great temporary loss of strength, and melancholia, with more or less pain referred to various parts of the body. At this time the soft parts on the hypertrophied portions of the body appear larger, although oedema cannot be found. A more or less complete recovery from these exacer- bations, or severe symptoms, generally occurs, but the patient is not quite as well in all respects as he was be- fore. Thus the disease proceeds, with some symptoms more or less constant, until there is hardly a tissue or organ of the body that is not affected in greater or less degree. Finally, little by little, the patient falls into a condition of progressive cachexia, with partial or nearly complete loss of muscular power, due to atrophy of the muscles, so that he may be compelled to remain in bed. This condition may last for several years, and then death oc- curs unexpectedly, with the appearance of syncope. It 13 Acromegaly. Adiposis Dolorosa. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. is possible that an enlarged pituitary body may cause coma and death. Most cases of acromegaly, however, die of some intercurrent affection. The headache may become so severe as to cause suicidal tendencies, and temporary insanity may occur, probably caused by pressure from an enlarged pituitary body. Treatment.-This disease is incurable, but in any given case we can safely expect to ameliorate many of the nervous symptoms. Of all treatment rest is the most im- portant, under which all the phenomena, except those produced by actual lesions, will improve. Pain, the most frequent cause of complaint, has been treated by anti- pyrine, acetanilide, phenacetin, exalgine, caffeine, and codeia. Dulles gave salol and phenacetin for the head- ache, while in Ruttie's case it was helped by exalgine in three-grain doses every eight hours. Phenacetin, occa- sionally, and codeia, in small doses, continued for one or two weeks, have given good results in the writer's case. The constipation should be treated, while dyspepsia, when present, can be best helped by a diet that requires but little mastication, as prognathism, which is so fre- quently present, is generally the cause of the dyspepsia. The bromide of potassium is often of service in relieving the headache and the feeling of pressure in the head. Positive impairment of sight or hearing cannot be im- proved, and if the sight is affected at all the loss of vision will probably increase. Tinnitus aurium, if due to this ■disease, can probably be but little, if at all, helped. Arsenic in some form, given for a long time, has done good service. Denti used the arseniate of iron. Mosier used baths and the faradic current to the back. But, as before stated, any tonic or bracing treatment, combined with rest, will generally cause a cessation of the acute symptoms and a pause in the disease, except in the last stages. A theoretically good treatment, owing to the condition of the blood-vessels, dilated and with weak- ened walls, and of practical value in Mosier's and the writer's cases, is ergot. Ergot or ergotine should be given continuously for a long period, the exact length of time being governed by the results. If there is atrophy of the muscles and great loss of muscular power strychnia, by the mouth or hypodermi- cally, is of value. Phosphorus has been used in acromegaly, also the Oertel treatment, and the milk diet. Where glycosuria has been present the diabetic diet has been used. (SUPPLEMENT.) 1888. Tresilian, Fred.: British Med. Journ., Marcli 24. 1888, 642. 1889. Virchow, Rud.: Berliner klin. Wochnschr., February 4, 1889 : also translated into Ilhist. Med. News, London, 1889, ii., 241-247. 1889. Freund, W. A.: Sammlung klinischer Vortrage, Leipzig, 1889, Nos. 329 and 330. 1889. Saundby, R.: Illust. Med. News. London, March 2, 1889. 1889. Sollier : France m6dicale, 1889. 1889. Guinon. 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Cepeda J.: Rev. balear de cien. med., Palma de Mallor- ca, 1892. viii., 7-10. 1892. Hare. H. A.: Med. News, Philadelphia, 1892, lx.. 237-239. 1892. Hutchinson, J.: Arch. Surg., London, 1891-1892, iii., 343-347. 1772-1801. Sancerotte communicated a case to the Academie de Chir- urgie, 1772. Published in Melanges de Chirurgie, 1801, part i., 407. 1822. Alibert : Precis theorique et pratique des maladies de la peau. Paris, 1822, t. iii., 317, 1857. Chalk : Transact, of the Pathol. Soc. of London, 1857, viii., 305. 1864. Verga, A.: Caso singolare di prosopectasia in Reudiconti del Reale Institute di Scienze e Lettere, Adttnanza del 28 Aprile, 1864. 1868. Friedreich : Virchow's Archiv., Bd. xlvii., 1868, 83. 1869. Lombroso, Ces.: Giornale ital. delle mallattie veneree, etc., 1868 ; translated by Fraenkel, Virchow's Archiv., Bd. xlvi, 1869, 253. 1872. Ewald : Virchow's Archiv. Bd, Ivi., 1872. 1877. Brigidi communicated a case to the Societa medico-phisica fio- rentina. August 26. 1877. 1879. Taruffl, Ces.: Annali Universal! di Medicina, T. ccxlvii. et ccxlix., 1879. 1882. Henrot, H.: Notes de Clinique Medicale, Reims, 1877 ; and Notes de Clinique Medicale, Reims, 1882. 1884. Fritsche and Klebs : Klinische und pathologisch-anatomische Un- tersuchungen. Leipzig, 1884. 1885. Hadden and Ballance: Clinical Society's Transact., vol. xviii., 1885: als > Clinical Society's Transact., vol. xxi., 1888. 1885. Wadsworth : Boston Med. and Surg. Journ., January 1, 1885. 1886. Marie, P.: Revue de Medicine, Paris, 1886, vi., 297-333. 1887. Minkowski, O.: Berliner klinische Wochnschr., 1887. No. 21. 1888. Bier, Aug.: Mittheilungen aus der chiruigischen klinik zu Kiel, iv., 1888. 1888. Godlee, R. J.: British Med. Journal. 1888. 1888. O'Connor, J. T.: N. Am. J. Homeop., N Y., 1888, 3 s., iii.. 345-358. 1888. Fraentzel, O.: Deutsche Med. Wochnschr., August 9, 1888. 1888. Adler, I.: Boston Med. and Surg. Journ., 1888, cxix., 507 1888. Wilks : Clinical Society of London, April 13, 1888. 1888. Marie : Nouvelle Iconographie Photographique de la Salpetriere. Paris. 1888, i., 175-182. 1888. Lancereaux : Anatomie Pathologique, t. iii.. 1 ere partie, 29. 1888 Broca, A.: Archiv. g6n6r. d. Med., Paris, 1888. 1888. Elliot: Lancet, 1888. 1888. Erb, W.: Deutsch. Arch. f. klin. Med., 1888, Ixii., fasc. iv., 296. Literature. 14 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Acromegaly. Adiposis Dolorosa. 1892. Solis-Cohen, S.: Med. News, Philadelphia, November 5. 1892. 1892. Harris, H. F.: Med. News. Philadelphia, November 5. 1892. 1S92. Dulles, C.: Med. News, Philadelphia, Novembers, 1892. 1892. Barclay and Syinmers : British Med. Journ., December 3, 1892. 1892. Denti : Atti. d'Ass. med. Lombardi, Milano, 1891-92. 41. 1892. Sarbo, A.: Orvosi hetil. Budapest. 185)2, xxxvi.; also transl. Pest med.-chir. Presse, Budapest. 1892, xxviii., 575. 1892. Orsi, F.: Gazz. med. lomb., Milano. 1892, li., 201-207. 1892. Boltz. R.: Deutsche med. Wchnschr., Leipzig, u. Berlin, 1892, xviii., 635. 1892. Fratrich : Allg. Wien. med. Ztg., 1892, xxxvii.. 405-418. 1892. Holsti. H.; Ztschr. f. klin. Med., Berlin, 1892, xx., 298-310. 1892. Massalongo, B.; Riforma med., Napoli, 1892, viii., pt. 3, 74-87. 1892. Buzer, C.: Aerztl. Rundschau, Munchen, 1892, ii. 509-511. 1892. Mosier : Wien. med. Bl., 1892, xv., 56, 70, 87, 105, 121, 136. Oliver T. Osborne. (SUPPLEMENT.) she was transferred to the nervous wards of the hospital and came under the care of the writer. Her appearance at this time was striking. She was a tall, large-framed woman who looked as though she had at one time presented a fine physical development, but she seemed unnaturally broad across the back and shoulders. On removing the clothing an enormous en- largement of these parts was disclosed. The enlarge- ment affected both shoulders, the arms, the back and the sides of the chest. It was most marked in the upper arms and back, forming here huge and somewhat pen- dulous masses. It was elastic and yet comparatively firm to the touch, and it was impossible to produce pit- ting. In some situations it felt as though finely lobulated, and in others, especially on the insides of the arms, as though the flesh were filled with bundles of worms. ADIPOSIS DOLOROSA. At a meeting of the Ameri- can Neurological Association, held in New York in June, 1892, the writer presented the histories and photographs of three cases of an affection which up to that time had not been recognized. The first of these cases had been under the writer's care since 1887, and is still living. The second and third were discovered in the wards of the Philadelphia Hospital in 1891, and both cases dying, autopsies were held in each instance. The histories of these cases are briefly as fol- lows : Case I.-M. G , aged fifty-one, female, widow, a native of Ireland, and a domestic. Her father had died at forty-five of erysipelas. Her mother, who had had eighteen children, died at forty of some affection incident to the meno- pause. Of her brothers and sisters, seven died in childhood, one in adult life of pleurisy, one sister in childbirth, a brother and two sisters of phthisis, while the remaining five are living and apparently in good health. None of the patient's relatives have ever suffered, as far as she knew, from symptoms similar to her own, nor had any of them ever had any nervous or mental affec- tion. As a child she had had measles, whooping-cough, and scarlet fever. Menstruation began normally at fifteen. At eighteen she married. Some years later she had an attack of pneumonia but made a good recovery. She had in all seven children and one miscarriage. Five children died in early childhood, one from cholera in- fantum, two from measles, one from "congestion of the brain," and the fifth from spasms. The menopause set in abruptly at thirty-five. From this time up to within two or three years her health had continued good. She had undergone some increase in weight, but beyond this nothing worthy of mention could be elicited. Syphilis was denied, as was also alcoholic excess. However, the condition of the patient on several occasions upon her return to the hospital after furlough was such as to throw more than doubt upon her denial of alcoholic abuse. When forty-eight or forty-nine years of age she noticed that her arms were becoming very large. The upper arms and shoulders appeared swollen. The swelling con- tinued steadily to increase and was for about a year un- attended by any other symptom. In November, 1886, she was admitted to the surgical wards of the Philadelphia Hospital for the rupture of a varicose vein of the leg. In the following February she was transferred to the medical wards for a severe attack of bronchitis. Later she had an attack of severe pain and swelling in the right knee, attended by chill and fever. She was treated for rheumatism and promptly relieved. Two weeks after this she complained of a sharp darting pain in the right arm. It begun on the outer aspect above the elbow and gradually increased in severity and ex- tent, spreading upward to the shoulder and neck, and downward to the forearm and hand. It was shooting and burning in character. She felt at times as though hot water were being poured upon the arm, and again as though the hands and fingers were being torn apart. No rise in temperature was noted. The pain was often par- oxysmal, but it was never absent. On June 4, 1887, Fig. 4.-Author's First Case, Showing Large Masses of Fat on Back and Upper Arm. The skin was not thickened ; it did not take part in the swelling, and it was not adherent to the subjacent tissues. In addition the swelling was very painful to pressure. Pronounced pressure appeared to be absolutely unbear- able. The nerve-trunks also were exquisitely sensitive, but this painful condition was not by any means limited to them, but permeated the swollen tissue as a whole. The muscles were not involved in the swelling. The affected parts were, however, quite weak. Examined electrically the muscles of the shouldersand arms yielded a negative result, partly because of the great resistance caused by the intervening tissue. Slight qualitative and quantitative changes were noted in the muscles of the forearms, while in the hands distinct reaction of degen- eration was noted in the thenar and hypothenar groups, more evident on the right side. Cutaneous sensibility was much diminished. On the right arm various areas existed in which no response whatever was given to the aesthesiometer. They were large and irregular in shape, and very sharply defined, and were present on both the inner and outer aspects. In the finger-tips the points could not be at all separated. In the left arm, some impairment of sensation was de- tected on the outer aspect of the forearm, and in the finger-tips sensation was decidedly below normal. Sen- sibility to heat and cold appeared also to have been les- sened. On examining the legs it was found that cutaneous sensibility was distinctly lessened on the right, while showing little or no impairment on the left. No enlargement was noted at this time in any part of the body save in the arms and shoulders. The face was pale, as were also the mucous membranes. There was, however, a little color in the cheeks, more noticeable at times. Her features were well formed and intelligent. Her hair was dark and fine. Her mind was unimpaired, except that at times she was much abstracted. Sometimes she gave conflicting answers to questions, so that the lat- ter had often to be repeated. 15 Adiposis Dolorosa. Adiposis Dolorosa. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Ten days after her admission to the nervous wards she had a chill, followed by fever and a painful herpetic eruption over the upper portion of the left arm, and an- terior portion of the left side of the chest. Some five or six- days later another crop of vesicles made its ap- pearance on the back and on the front of the chest. Nothing further worthy of note occurred until Octo- of the scapula, perpendicularly down the back to very nearly the lumbar region. Upon another occasion swell- ing again made its appearance in the right popliteal space, as well as on the inner aspect of the knee. In the latter locality the swelling became permanent, and the tissues presented the same peculiarities as noted else- where. Pain also occasionally appeared in the left arm. Prolonged attacks of cardiac dyspnoea occurred every week or two, and apparently independ- ently of bronchitis. An examination of the eyes by Dr. de Schwei- nitz revealed contraction of the fields of vision for form and colors, most marked in the left eye. The other special senses, hearing, taste, and smell, appeared to be somewhat obliterated. An analysis of the urine yielded a negative re- sult. A blood-count failed to reveal an increase of white blood-corpuscles. Upon a number of occasions the patient dur- ing paroxysms of pain vomited blood ; upon sev- eral occasions this was observed by the writer himself. The quantity could not be accurately estimated, but while it was never large at a single emesis it was constantly brought up in repeated vomiting during an entire night or day. Measurements were made of this patient at various times, and these have shown a steady increase in the bulk of the enlarged parts. Of late the patient has not suffered as intense pain as formerly. Cardiac dyspnoea, however, is a frequent and distressing symptom. The face is still flushed. Recently, shooting pains have appeared in the abdominal region, and examination discloses in this region an ex- tensive deposit of tissue to which the pain is referred. A large longitudinal wheal, especially sensitive, is found in the left lumbar region. Swelling has also made its appearance over the left hip, and to some extent over the right. The thighs and Fig. 5.-Another View of Author's First Case. her 13th, when the patient had another severe attack of bronchitis, which was accompanied by much dyspnoea. In the latter part of the following December it was noted that during one of her paroxysms of pain the swelling of the right arm became more decidedly lobu- lated. The arm became more sensitive than ever, and on examination hard, cake-like masses were felt, resem- bling, as the resident physician expressed it, the caking of milk in a breast. This caking or increased lobulated feel was subsequently repeatedly noticed during parox- ysms of pain. At this time also she suffered from an attack of pain in the right knee, and in the popliteal space a diffused swelling was felt which ex- hibited the same nodulated feel as did the swelling elsewhere. It was also very pain- ful. At various times subsequently paroxysms recurred, during one of which swelling was noticed in the posterior triangles of the neck. The latter seemed later to be permanently fuller than normal. Bronchitis also recurred, accompanied by dyspnoea, and at one time with free expectoration of bloody mucus. In the following April she experienced an attack of pain of unusual severity. The lat- ter, which involved the right arm and shoul- der, right side of trunk and back of neck, now for the first time spread to the face and head. The right side of the face became dis- tinctly swollen, and presented to the touch the same nodulated feel so characteristic of the swelling in other portions. At the same time the tongue and pharyngeal tissues ap- peared to become swollen. Her tongue, she said, felt much too large for her mouth. In addition her voice was very hoarse, and she spoke with great difficulty. This condition persisted for upward of a week, and then slowly subsided. For some time, subsequent- ly, she spat blood, the source of which was not determined, though it appeared to come from the throat. The reddish color in the cheeks also became more pronounced, until it covered the entire forehead like an intense blush. This blush was afterward observed to occur with other paroxysms of pain. During the summer of 1888 the patient's condition un- derwent some change. The paroxysms became less fre- quent and less severe. Hand in hand with this improve- ment, sweating became much more marked. However, paroxysms occurred from time to time, and upon one occasion a thick welt-like swelling, exquisitely painful, was observed extending from the upper and inner angle Fig. 6.-Microscopic Drawing from Portion Excised from Lett Arm. Middle Third, Showing Embryonal Connective-tissue Cells (Carmine). (Drawn by Allen J. Smith.) buttocks do not seem enlarged in proportion, but soft masses are now found on the inner sides of both knees, the right larger than the left, the former more painful to pressure. A small nodule to the right of the scro- biculus is especially painful. At various times, by means of a Duchenne trocar, fragments for microscopic examination were removed from either arm. They revealed connective tissue and fat-cells present in varying degree. It was observed that the former was decidedly embryohal in type, the 16 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Adiposis Dolorosa. Adiposis Dolorosa. cells being large and fusiform, and their nuclei cor- respondingly large and prominent. The fat-cells for the most part were associated with these connective tissue-cells, and occasionally individual fat-cells were seen in which the fatty metamorphosis had not been complete. These appearances are well illustrated by Figs. 6 and 7. In one of the fragments removed the writer was fortunate enough to find nerve-elements. These had Her present malady began about fifteen years ago, when she was forty nine years old. At that time she was living in California. The first thing noticed was a constant feeling of coldness about the knees, followed by swelling, which gradually increased. At first she thought that the swelling was due to her growing fat, but later was astonished to see that there was a localized mass on the inner aspect of each knee. At the time there was dull aching pain in the affected parts. Later, the right arm became involved, a mass making its appearance on the outer aspect. Her body she now noticed also became larger, as her stays were too small for her. During this time, while still in California, inability to perspire freely, except at the Turkish bath, was marked, and was part of her reason for coming East. Since she has been in Phila- delphia the lack of perspiration has not been as marked as before. Various plans of treatment were tried, but did not influence the progress of the disease, i.e., the growth of the swelling. Five or six years ago, injections of chloroform were made into the swellings on the inner sides of the knees, but no good was accomplished. Pain- ful ulcerations were the result, and scars of considerable size mark their location. About five years ago a slight swelling appeared in the epigastrium. * This gradually increased in size until it re- sembled the breasts in shape, and afterward spread so as to involve nearly the whole abdomen. From the knees the process extended to the thighs, and gave rise to large masses on their outer side and about the hips. At various times she had suffered with pains apparently situated in the enlarged tissues, or running down the limbs. Sometimes these attacks were fairly well localized in one limb, in one side, or about a joint. Five years ago her attention was called to a peculiar condition of the right hand. The last phalanx of the second finger began to be fixed in a flexed position, while the end of the finger appeared to be growing somewhat smaller. Later the remaining fingers of this hand be- came involved, and all the phalanges deformed. The deformity, as seen now, is flexion of the first phalanx, marked over-extension of the second, and half-flexion of Fig. 7.-Another Portion of the same Specimen. Showing Fat Cells and Oil Drops. (Drawn by Allen J. Smith.) probably been included in the grasp of the trocar by the latter grazing a blood-vessel, as the fibres were non- medullated. The latter revealed decided changes, their connective tissue was denser than normal, and they pre- sented an unusual number of nuclei, which here and there were aggregated in clusters (see Fig. 8). The most interesting finding, however, was a more or less complete ganglion of relatively large size (see Fig. 6). The capsule of the ganglion was evidently sclerosed. Certainly it ap- peared very dense and excessively thick. Case II.-E. W . female, aged sixty-four, married, a native of England. Her father had died of alcoholism at middle life ; her mother of oedema of the brain (veri- fied post mortem). Has living an elder brother and sister, and one younger brother. The younger brother, when a child, was peculiar, he would run to people in a fright and say that he was drowning, and the like. He is now in average health, but drinks heavily. He has a contract- ure of the ring finger. Has nine children, all of whom appear to be well. The older brother suf- fers periodically from violent headache ; also, since a young man, he has suffered from constantly cold feet, this so severe as to disturb sleep, and cause great distress. He has had five sons and two daughters. One son died of tetanus (trau- matic), the others are well. One daughter has a contracted middle finger of the right hand ; has never suffered pain in the finger. Patient's sis- ter is living, sixty-five years old ; no children. The patient herself does not remember having had the ordinary diseases of childhood. In early infancy she had convulsions, which recurred with great frequency for a time. On her being re- lieved of lumbricoid worms, however, the con- vulsions ceased. At seventeen she was married. She had two sons, the older of whom is now forty, and who has seven healthy children. The younger son died at two years of age, of hemorrhagic diar- rhoea. The patient had no miscarriages and no still-births. Left her husband because of vene- real disease, contracted by the latter. She was told by a doctor that she had escaped infec- tion. A year later, however, she had sore throat, with white patches. For many years she was an immoderate drinker. For weeks at a time she was intoxicated every night. Menstruation began at eleven and ceased abruptly at thirty-five. She lost habitually an unusual quantity of blood, but never suffered any discomfort. Fig. 8.-Microscopic Drawing from Portion Excised from Left Arm, Lower Third, Showing Inflammation of Non-medullated Nerves (Carmine). (Drawn by Allen J. Smith.) the third. The thumb is also stiff, but all of its joints are flexed. For some time she has noticed the thumb of the left hand becoming like that of the right. A year ago the patient had a quasi-rheuinatic attack affecting the deformed hand and the arm. The pains seemed to run up and down in the arm rather than about 17 Adiposis Dolorosa, Adiposis Dolorosa, REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) the joints. Some months ago she had pneumonia of the right lung, and made a good recovery. For several months past she has had slight uterine hemorrhages at times, associated with which were dull, remarkable degree the swollen tissues of Case I. It gave the same nodular feel, and could not be made to pit on pressure. At the time of the examination no tenderness existed in the swellings, but shooting pains were referred to them in various situations. This was particularly the case in the mass over the right hypochondrium. In ad- dition, she complained of scalding sensations on the inside of the right cheek and the right side of the tongue. Nothing abnormal could be discovered in the mucous membrane of these parts. No tenderness could be dis- covered in any of the nerve-trunks at the time of the examination. The patient was excessively weak, and could move about her bed or sit up only with great diffi- culty. Her grip was almost nil. No tendon-jerks could be elicited, probably because of purely mechanical diffi- culties. For the same reason an electrical examination could not be made. Slight diminution of tactile sensibility and of the tem- perature sense and also some analgesia were present. An area of absolute anaesthesia existed on the back of the left arm, extending thence over the posterior aspect of the left shoulder. A marked increase in the swelling had taken place during the last year, measurements showing, for instance, that the left forearm had increased one inch and seven-eighths, and the right forearm one inch and three-eighths ; the left arm one and a half, and the right arm two inches. This increase appeared to be maintained throughout. Fig. 9.-Another View from the Same Portion of Tissue Removed from the Left Arm. (Drawn by Allen J. Smith.) aching pains, resembling those formerly felt before men- struation. In addition, she stated that the swelling had spread up from the knees over the thighs unequally ; that the left thigh and buttock had been earlier and more conspicu- ously enlarged than the corresponding parts on the right side. Gradually, however, the latter became enlarged to an almost equal degree. Later, swelling appeared over the left arm, and later still on the back and sides of the trunk, and wherever appearing, it gradually became dif- fused, and finally reached very great proportions. The patient further volunteered the statement that she had formerly been very slight in build. To ordinary observation she merely presented the ap- Fig. 11.-RearView of Author's Second Case. Subjectively the patient complained much of head- ache. Her face was very much flushed, and she suffered greatly from cardiac dyspnoea. It was a persistent and distressing symptom. Examination of the eyes proved negative, as did also that of the urine. Perspiration, according to the patient's statement, was scant. Face not involved in the enlargement; no subnormal tempera- ture ; hair thin, but not excessively so; no difficulty in speech ; no mental impairment. The patient remained very much in the same condition for some two weeks following her admission to the nervous wards, when her dyspnoea greatly increased. Her pulse, already soft and compressible, became ir- regular and intermittent. This condition, though re- lieved from time to time, persisted until hands and feet became puffy, the face cyanotic, and the lungs oedematous and congested. Death occurred on December 22, 1891. Autopsy, December 23(Z.-Body that of a very large woman. Weight estimated at about three hundred pounds. Face dark from venous congestion. Some dis- coloration on under surface of body and thighs. A number of large white scars on either side over the knees. Legs and feet cedematous. Body distorted and flattened, as though by its own weight. Scalp and calvarium revealed nothing abnormal. Veins of dura and longitudinal sinus full. Venous congestion of the pia. Cortex a little darker than normal. Puncta vasculosa prominent. Brain otherwise normal. Spinal cord appeared normal. Skin of thorax appears normal. The subcutaneous tissue is fatty and moist. Fig. 10.-Author's Second Case. pearance of an excessively obese person. However, ex- amination soon revealed that the enlarged tissue was very unevenly distributed. In the region of the knees, where it had first made its appearance, it was excessively irregular and lumpy. To the fingers it resembled in a 18 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Adiposis Dolorosa. Adiposis Dolorosa. Thyroid gland small, indurated, and infiltrated by calcareous matter in both lobes. Right lung oedematous and tightly adherent to chest- wall. Left lung oedematous, with hypostatic congestion posteriorly. Both pleural cavities contain a large excess ■of fluid. Pericardium contained some six or eight ounces of fluid, in which was suspended some flocculent lymph. Weight of heart twenty-seven ounces; the right side dilated, the moderator band much thickened. Walls of left side also much thickened, marked hypertrophy of the columnse carneae and papillary muscles. Some fatty change, especially in the walls of the right ventricle. Over the abdomen the subcutaneous fatty tissue was three inches thick. About a pint of ascitic fluid in ab- domen. Stomach much dilated. Intestines normal. Liver showed some fatty infiltration ; otherwise normal. Spleen apparently normal, though somewhat dark. Kidneys both reveal, excepting slight adhesion of the capsules, nothing specially abnormal. In the pelvis an ovarian cyst, containing some six •ounces, and a hydrosalpinx were found on the left side. Uterus seemed a trifle larger than normal. Bladder normal. Brain, cord, some of the nerve-trunks, pieces of skin and subcutaneous tissue, pieces of the liver, kidneys, spleen, a fragment of muscle, and the whole of the thyroid gland, were removed for microscopic examina- tion. The specimens were left in the care of Dr. H. W. Cattell, assistant to the pathologist of the hospital. Un- fortunately, Dr. Cattell fell ill with scarlet fever, and during his absence the specimens, together with those of Case III., were thrown away by an attendant. Case UI.- M. M , aged sixty years, widow, a tailor- ess by occupation, and a native of Germany, but a resident of America for twenty-six years, was admitted to the nervous wards of the Philadelphia Hospital, October 7, 1891. Memory very poor. History obtained in part from relatives. Her father and mother healthy, though her mother died of heart disease. She had seven brothers and sisters, all apparently well. She had no children ; had never been pregnant. Many years ago a lump appeared at the back of the neck, for which she consulted Dr. Gross at the Jefferson Medical College, but for some reason no operation wTas performed. At various times thereafter swellings made their appearance in various situations. Further, she lost more blood at her menstrual periods than normal. Oc- casionally she suffered from haematemesis and epistaxis. (SUPPLEMENT.) swellings in various situations. Thus, a large, soft mass was found over either biceps, and others, somewhat smaller, over the outer and posterior aspect of either upper arm. Two large masses were found over the belly, separated above the umbilicus by a deep, transverse crease. Another gave excessive prominence to the mens Veneris. From the back of the neck, at its lower part, sprang a big mass like a hump, while a diffuse swelling gave a Fig. 13.-Rear View of Author's Third Case. cushion-like coating to either half of the back, and ex- tensive deposits gave unnatural prominence to either hip. In marked contrast, the deposit was absent from the forearms and hands, from the face, from the thighs and legs, and from the buttocks. The gluteal regions, in fact, seemed flattened and sloping. The deposit over the back seemed tolerably firm and resistant ; over other portions it was quite soft, though elastic, and exhibited the same nodular feel noted in the previous cases. Further, it was discovered at once that these masses were painful to the touch, the patient com- plaining very much when only moderate pressure was exercised. This was especially true of the deposits over the arms and back of the neck. In addition, the patient complained of stabbing pains in the deposits, more marked in the regions just mentioned. There was no tenderness over the nerve-trunks. She complained also of headache. In making the examination it was also further noted that the left radius was rough and nodular for about two and a half inches in its middle third ; also, that there was a large discolored area on the outer aspect of the left fore- arm resembling a syphilitic scar. Both tibiae were some- what nodular, though no scars were discovered on the legs. A few white scars were seen on the forehead. Finally, quite a number of purpuric spots were observed on the forearms, thighs, legs, and back. The skin of the forearms and hands, and that of the legs and feet to a less extent, was dry, dark, and much roughened. Cutaneous sensibility was found generally diminished, while a few patches of anaesthesia were noted. One of these was an area diffused over the right side of the trunk and the right shoulder. They appeared to be constant, and were confirmed at various examinations. Owing to the extreme weakness of the patient, the study of the eyes could not be made satis- factorily, but, as far as it went, was negative. The urine contained albumin, though no casts were found. In answer to questions the patient said that she had not been sweating freely for years, but ow- ing to her mental condition no importance was given to this statement. She at no time pre- sented any change in temperature. Iler hair was well preserved. The patient seemed to fail slowly and steadily, although liberal diet and stimulants were freely used. Her de- mentia gradually deepened, and for some days before death she voided urine and faeces involuntarily. She finally died in a comatose state on November 5, 1891. Autopsy, November Qth.-Body that of a large woman with irregularly distributed fat-like masses. Some dis- colorations on the back. Small bed-sores beginning on the buttocks. Fig. 12.-Author's Third Case. The climacteric occurred at forty-six. No history of any intercurrent affections. Mental impairment had been noticed for about two years. On examination the patient was found to be excessively feeble. For some two weeks she had been unable to walk. She lay, for the most part, in a quiet, apathetic state, though when aroused she answered questions slowly, but intelligently. She was also somewhat deaf. Examination further revealed, soft, fat-like masses or 19 Adiposis Dolorosa. jEtiology. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Scalp and calvarium normal. Dura normal. Pia very oedematous. Brain very soft and (edematous. Cord re- vealed nothing abnormal. On incising the skin of the chest and abdomen it was found to be normal in appearance, but the subcutaneous tissue, which looked like very white fat, was excessively thick, attaining below the umbilicus a depth of seven inches. The thyroid gland was larger than normal, harder to the feel, and much calcified, especially the right lobe. The heart weighed eight and a half ounces. Both aortic and mitral valves were slightly thickened. Heart sub- stance evidently fatty. Lungs emphysematous. The mucous membrane of the stomach revealed a chronic gastritis. The liver weighed forty-four ounces, and, beyond some fatty infiltration, was practically nor- mal. Spleen normal. The kidneys, however, showed decided shrinking and loss of cortical substance, with somewhat adherent capsules. Nothing noteworthy was seen in the pelvic organs. As in Case IL, brain, cord, nerve-trunks, skin and sub- cutaneous tissue, thyroid gland, and portions of other viscera were removed for microscopic examination, but, as already mentioned, the specimens were subsequently lost. It was not without some hesitation that these cases were presented together. The writer was well aware that without a microscopic examination to supplement the autopsies their study was incomplete, and yet the cases are in themselves so interesting, and appear to be so unusual, that their publication in a group, with such data as are at hand, was more than warranted. Case I. had originally been published in the University Medical Mag- azine for December, 1888, under the title, "A Subcuta- neous Connective Tissue Dystrophy of the Arms and Back, Associated with Symptoms Resembling Myxoede- ma." Case II. had been discovered in the medical wards of the Philadelphia Hospital by Dr. Frederick P. Henry, in 1890, and was published by him in the Journal of Ner- vous and Mental Diseases for March, 1891, as a " Case of Myxcedematoid Dystrophy." Dr. Henry fully recog- nized the relation existing between this case and that pre- viously described by the writer, and he adopted the term dystrophy in order to bring the cases " into the same cate- gory." In November, 1891, this case (Case II.) having been transferred to the nervous wards of the Philadel- phia Hospital, came under the care of the writer, and was studied again. The account here given is abstracted partly from the notes of Dr. Henry, and partly from those of the writer. Case III. was discovered in the nervous wards in Oc- tober, 1891. Certainly these cases differ radically from ordinary cases of lipomatosis, and certainly the nervous symptoms present must have a special significance. To begin, the enlarged tissue makes its appearance in a very irregular way. Nodules of soft tissue are, at first, deposited in some one situation, or perhaps in corresponding places in both arms or in both legs. For a time the deposit is lim- ited to these original areas, but subsequently it makes its appearance elsewhere, and may become very extensive. Regions, however, may exist which remain permanently uninvaded. In Case I. the enlargement was first noticed in both upper arms, and later in the back. Subsequently a swelling made its appearance on the inner aspect of the right knee, to be followed months after by a similar swelling in a corresponding position over the left knee. Later still, swellings made their appearance in various other situations. However, the legs, with the exception of the knees, have remained free from involvement, while the thighs and buttocks have only recently shown a doubt- ful change. In Case II. the enlargement began on the inner aspect of either knee, and then gradually spread unequally over the thighs and buttocks. Later, the left arm became involved ; next the sides and back, and, finally, the entire trunk. In Case III. the enlargement began in the back of the neck, and then at various times appeared in other situations. It remained absent from the face, the forearms, the legs, the thighs, and the but- tocks. It is a peculiarity of this case, also, that the en- largement tended to produce distinct segregated masses. Not only is the development of the enlargement ir- regular and even capricious in these cases, but there is,, in addition, another important fact to be remembered, and that is : that at some time or other the enlargement is accompanied by pain or other nervous symptom. Thus in Case II. pain, shooting in character, and a sensation of coldness preceded the appearance of the nodules on the- insides of the knees. In Case I. shooting and burning pains made their appearance about a year after the swell- ing had appeared in the arms, while similar pains, very great in intensity, preceded the appearance of the swelling on the inner aspect of right knee and in other situations. Case I., it should be remembered, was observed by the writer for a number of years, and was therefore studied in great detail, and pain was noted as a marked feature- of the case, especially in the early course of the disease. Occasionally it was observed in old areas of enlargement, and again in regions free from the swelling, but in which the latter subsequently appeared. In Case III. stabbing pains were complained of and were referred to the de- posits, and the latter were very painful to examination. We may say, therefore, that pains, shooting, burning, or stabbing in character, were present in all cases at vari- ous times in their history. Some of the paroxysms observed in Case I. w ere partic- ularly suggestive. Sometimes a welt-like swelling sud- denly made its appearance, evidently following the course- of a cutaneous nerve-trunk and at the same time being exquisitely painful. After a time the swelling would become slightly less, but would never wholly disappear. Several such "welts" are still demonstrable in Case I. If the paroxysm of pain made its appearance in an area of old enlargement, that is, reappeared or recurred, a de- cided and sudden increase would take part in the swell- ing, and it would become for the time being firmer and more resistant and occasionally more nodulated than be- fore, and generally a permanent increase in the swelling- could be demonstrated. Further, it should be remem- bered that at one time some of the nerve-trunks of the- right arm were very sensitive to pressure, that some of the muscles, those of the thenar and hypothenar groups- of either hand, revealed reaction of degeneration, and finally that the patient suffered on two occasions from herpes zoster. In Cases II. and III. tenderness over the nerve-trunks was not present at the time of the examination. In Case I., however, this symptom is also no longer present, its- absence having been noted for some time past. This and other circumstances justify the assumption that Cases II. and III. were further advanced than Case I., and that the latter was really observed during a develop- mental period and while more active changes were going on. Among the nervous symptoms must also be placed the diminished cutaneous sensibility and the patches of anaes- thesia as well as perhaps the excessive weakness. It is probable also that the absence and the diminution of sweating belong to this category. It will be remembered that this symptom was undoubtedly present in Cases I. and II. and doubtfully in Case III. Lastly, headache was noted in all the cases. Among other symptoms present in these cases should be noted haematemesis in Case I., haematemesis and epis- taxis in Case III., and a recurrence of uterine flow many years after the cessation of menstruation in Case II. In Cases I. and II. the menopause occurred unusually early, namely, at thirty-five, and in Case II. menstruation was unusually free. In Case III. the menopause occurred at forty-six, and menstruation was likewise said to have been excessive. Finally Case III. presented a well- marked purpura. What significance these symptoms- may have, it is impossible to say. It may not, however, be out of place to recall the not infrequent occurrence of uterine hemorrhages in women who subsequently suffer from myxoedema. Bronchitis is a most frequent and persistent symptom in Case I., while both Case I. and Case II. suffered mark- 20 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Adiposis Dolorosa. Etiology. ■edly from cardiac dyspnoea. But these symptoms were absent in Case III. As already stated, fragments of the enlarged tissue were removed from Case I. by the Duchenne trocar, as also from Case II. In both instances fat-cells and con- nective tissue were found in varying proportions. At times the connective tissue appeared decidedly embry- onal in type (see Fig. 4). This was especially so in Case I., in the fragments removed from the upper third of the right arm. It would seem further that in the more recent formations the fat-cells are less perfectly de- veloped, while in the older areas a fully formed adult fatty tissue is present. It is especially to be regretted that the loss of the specimens from the autopsies of Cases II. and III. prevented a confirmation of these results. The fact that in both cases the thyroid gland was found indurated and much infiltrated by calcareous deposit is not only very interesting but exceedingly suggestive. Without microscopic studies, however, and without a more extended series of cases it is impossible to draw a conclusion. The part, if any, played by the thyroid in this curious affection can only be determined by fut- ure autopsies. It goes without saying, also, that the thyroid should be studied in every case of obesity, whether typical or otherwise, that reaches the post-mor- tem table. With the above data before us, it is impossible to ■classify these cases under any well-established disease. Evidently the affection is not simple obesity. If so, how are we to dispose of the nervous elements present ? It is equally certain that we have not myxoedema to deal with. All of these cases lack the peculiar physiognomy, the spade-like hands, the infiltrated skin, the peculiar slowing of speech, and the hostof other symptoms found in myxoedema. It would seem, then, that we have here to deal with a connective-tissue dystrophy, a fatty met- amorphosis of various stages of completeness, occurring in separate regions, or at best unevenly distributed and associated with symptoms suggestive of an irregular and fugitive irritation of the nerve-trunks-possibly a neu- ritis. This, however, does not embrace the whole truth, and it remains for future research to determine to what this neuritis is due, whether it is a cause of the fatty metamorphosis or only concomitant, and whether the thyroid gland does not play some mysterious part in its causation. Inasmuch as fatty swelling and pain are the two most prominent features of the disease, the writer has pro- posed for it the name Adiposis* Dolorosa. F. X. Dercum. /ETIOLOGY (now often less authoritatively written Etiology ; from Lat., mtiologia ; Gr., atria, cause, Adyos, dis- course) is the general science of causation. In a nar- rower sense it forms one of the grand divisions of Biology -the science of living things-the others being Mor- phology, Physiology, and Distribution. ^Etiology deals with the causes and the explanations of the phenomena ■of biology, and with the whole subject of origins. Dar- win's classical work, the " Origin of Species," is a good example of a monograph in aetiology. Examples in medical literature will occur to everyone. Professor Huxley has defined aetiology in biology as that science which has for its object " the explanation of biological phenomena by showing that they constitute particular cases of general physical laws." ■ • If we keep this definition in mind we shall immediately discover the place of aetiology among the medical sci- ences. The phenomena of disease are quite as truly bio- logical phenomena as are those of health, for pathology is simply the morphology, physiology, and aetiology of the morbid organism. In this case, therefore, aetiology has for its special province the explanation of the phe- (SUPPLEMENT.) nomena of disease by showing that they constitute particu- lar cases of general physical laws. The importance of a science which seeks to do this can be appreciated only by those familiar with the history of medicine from the time of its gradual emancipation from priestcraft and dae- monism, through the humoral pathology, methodism, pneumatism, and the like, to the dawn of the cellular pathology in the middle of the present century. It means nothing less than the search of modern science for the causes of disease. The word aetiology is used in the medical sciences in two distinct senses, which may be described as the prox- imate and the ultimate, or the practical and the theoreti- cal. The term is known most widely in connection with the proximate causation of diseases, and to observe the difference in its application it is only necessary to take an example from any well-known disease, for instance, typhoid fever. By the aetiology of this disease is usually meant the mechanism of infection ; how the specific germ (if this be now allowed to exist) is distributed in a com- munity, how it finally arrives in the alimentary canal and by what vehicles, namely, polluted milk, water, or other food materials, secondary infection, climatic or " pythogenic " influences, broken drains, miasmata, the level of the local ground-water, etc. This aspect of the subject may be called the proximate, immediate, or prac- tical side of aetiology. But after the specific materies morbi of typhoid fever has arrived in the body it has still to do its work. It must somehow derange the normal structure or function, or both, of some part or parts, or of the whole body. It must unduly disturb the living stuff. It is the doing of this act which constitutes true aetiology ; this is the real causation of typhoid fever. The aetiology of the disease is the ultimate action upon the normal organism, the reaction to which is seen in the chain of phenomena called the disease. Obviously, practical aetiology becomes the foundation-stone of sani- tary science and preventive medicine ; while theoretical aetiology is the goal of pathology. We may conceive of the living organism as a living machine, having, in health, certain normal structure and functions. Disease will then be manifested by abnormal structure or function. This might be due, conceivably, to inherent defects in the constitution or construction of the machine,-as when a watch breaks down or keeps time badly owing to poor construction or poor constitu- ent materials ; or to some interference with the machine by something proceeding from without,-as when dirt or injury interferes with the running of the watch. Dis- eases due to defective structure or poor materials of the machine may be called intrinsic, diseases coming from the environment may be called extrinsic. The former are strictly constitutional, the latter strictly environ- mental in their origin. But organisms can never be free from the influence of their environment to which they must constantly be adjusting and readjusting them- selves. So fundamental is this phenomenon that Mr. Herbert Spencer has seized upon it as the main phe- nomenon of life itself, which he defines as " the continu- ous adjustment of internal to external relations or, in other words, adjustment of a changing organism to its changing environment. There can be no question that for the student of aetiology this is the most important feature of normal life, and that it furnishes a sound basis for his definition of disease. From this point of view life is a long series of departures from the normal, each followed by a return or readjustment. Adopting the definition and applying it to disease (abnormal life) we may define the latter as partial failure in the adjustment of internal to external relations-a total failure being death, either local or general. Physiology teaches that the function of functions is metabolism, and the continuous adjustment just referred to is based upon the hypothesis of a flexible metabolism, itself in constant change and also capable of responding to changes in the environment. In the language of physiology, metabolism is here co-ordinated with irrita- bility. In less technical language the living machine dif- fers from an ordinary lifeless machine in the remarkable * Adiposis, as is well known, would be etymologically more correct if it were written adipositas, but adiposis has been so long in use that it must be regarded as established. Adiposis Dolorosa has also perhaps a less formidable sound than has its Greek equivalent "Lipomatosis Algera." 21 JEtiolojjy. Aix-la-Chapelle* REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. extent of its power of repairing itself and adapting itself to the varying demands made upon it. But we must immediately qualify this statement. It is only the well- built living machine that can do this, and even the best of such machines can do it only to a limited extent. Here, then, lies the true conception of disease. Given a poorly made machine, or one of poor materials, and in time, no matter how favorable the environment, break down (or disease) is certain to occur. Or, on the other hand, given a good machine, but an environment to which it is un- able fully to adjust itself, and again disease and disaster ensue. Disease, then, like ordinary life, is a condition ; if the organism is well-made and capable, and adjusts itself without undue strain to its environment, health, or at least freedom from constitutional disease, is assured to it. But if it be poorly built, or of poor materials, it will ul- timately fail to do its work well and disease will appear ; or, it will fail utterly and death will supervene. Again, given a good living machine, its environment may change beyond its power of adaptation to it, as when a strong man is poisoned or falls into molten metal. In physio- logical language disease is to be conceived of as either imperfect metabolism or excessive (irreparable) interfer- ence with metabolism. That nosology is the simplest, and also the most scien- tific, which regards diseases as either intrinsic or extrin- sic, constitutional or environmental, and places diseased life in the same general category with normal life. If we accept this view and hold that disease is disturbance or abnormality, due either to defects in the living machine itself, or to environmental conditions or influences with which the machine cannot deal without exceeding its or- dinary powers of adjustment and suffering thereby, we shall arrive at the fundamental conception of aetiology. We shall see that the causes of disease may be many, but that all causes, in the last analysis, must be either consti- tutional or environmental, or both. At the present time there is remarkable activity in the domain of aetiology. The proximate causes of disease, the mechanism of infection, the distribution of specific germs, the sanitary effect of particular occupations or trades, such as stone-cutting and match-making, the in- fluence of climate, diet, urban and suburban life, and the like, are being eagerly studied. Preventive medicine, working with the invaluable clews supplied to it by the germ theory of disease, is making progress that may fairly be described as immense, and is enriching almost daily our knowledge of proximate and practical aetiology. But it is in the field of ultimate or theoretical aetiology that the most remarkable achievements are now being made. In the course of the hot pursuit of immunity, which is one of the features of the day, much has come to light con- cerning the facts of cellular irritation, defence, and dis- ease. It appears that in acute infectious disease-and at present our knowledge is largely restricted to the en- vironmental diseases-there is first an invasion of the organism by something proceeding from without, it may be lifeless substances (poisons) or living organisms (germs, parasites, etc.). These act upon some or all of the living cells of the body, which in turn, by the exercise of their ordinary functions of adjustment, react upon the foreign matters. The extent of their reaction will depend upon the emergency and upon their own powers. The nature of the reaction will depend upon the particular irritation applied. The success of the reaction will depend upon its victory or failure. The reaction itself may make its appearance as functional disease or disturbance, such as fever, or as lesion, discoverable by structural changes in tissues or organs. ^Etiology here becomes the history of a battle in which the living machine struggles with an unfavorable envi- ronment. If it struggles easily, naturally, and success- fully, the phenomenon is called ordinary life. If vio- lently, and with fever, delirium, and slow convalescence, we must think of disease, but not necessarily of perma- nent lesion. If with obvious injury, and sequela1 such as indicate lesion, we must suppose that the machine has suffered beyond complete repair, though it may still con- (SUPPLEMENT.) tinue to work. If death ends the struggle, it means that, however heroic may have been the effort, the mechanism proved inadequate to cope with its environment-unable to adjust its internal to its external relations. Turning to the intrinsic or constitutional diseases we find ourselves dealing with a much more difficult phase of the subject. The special structure of the vital appa- ratus depends chiefly upon heredity, though its powers are influenced by environmental conditions, such as food, temperature, electricity, and moisture. What it is, precisely, that distinguishes the protoplasm of A from that of B we cannot say ; why the one forms biliary or urinary calculi, while the other does not, though liv- ing under apparently similar conditions, we do not know. The microscope fails to reveal the important differences of molecular structure which must exist. Yet there can be no doubt that, if these could be seen, differences might be detected as great as those between any two machines intended to serve precisely the same purpose-for exam- ple, two clocks of different manufacture. Enough has now been said to show that while we are yet very much in the dark concerning the aetiology of disease, we are certainly making headway in " the expla- nation of biological phenomena by showing that they con- stitute particular [and usually extreme] cases of general physical laws.'' The " general physical laws " prevailing in disease are the general laws of biology ; the "particu- lar cases " which diseases constitute are those of poorly built organisms struggling with ordinary environments, or, perhaps, as often, well-made organisms struggling with unfavorable environments ; i.e., normal organisms with abnormal conditions, or else abnormal organisms with good conditions. For a recent and suggestive treat- ment of the aetiology of disease see the Lumleian Lectures by P. H. Pye-Smith, delivered at the Royal College of Physicians, London, in The Lancet, 1892, Vol. L, p. 847 et seq. The debate now going on concerning Immunity (which see) should also be carefully followed. William T. Sedgwick. AGARICIN, AGARIC ACID.-The active principle of Boletus Laricis, Linn., White or Purging Agaric. It occurs in white crystalline needles, soluble in alco- hol, ether, and chloroform ; boiling with water forms a gelatinous solution. The use of this drug has been revived as a remedy for profuse sweating, especially the colliquative sweats of phthisis. Its effect is produced by its action on the glands themselves and not by any action on the nerve-cen- tres. It is superior to white agaric on account of a more prompt and certain action and by not producing as much irritation of the digestive organs. The dose is from -jL to | gr., increased to 1 gr. ; it should be administered five or six hours before the ex- pected sweating. It is given in pill or powder, com- bined with small doses of Dover's powder to counteract any tendency to diarrhoea. It may be administered by hypodermic injection. The following solution is recom- mended : Agaricin, J gr. ; alcohol, absolute, 807T[. ; glycerine, 1 drachm. Beaumont Small. AIX-LA-CHAPELLE (Ger., Aachen). Although the beneficial action of the thermal waters of Aix-la-Chapelle on a great variety of morbid processes has already been set forth (see art. Aachen, Vol. I. of this Handbook), the chief eclat of this resort is undoubtedly due to the- successful treatment there of syphilis. Many physicians have questioned whether the waters of Aix-la-Chapelle were possessed of curative properties unassisted by or- dinary antisyphilitic treatment. Be this as it may, there is no doubt that better results are obtained at this spa, in all syphilitic diseases, than at any other watering-place in Europe. It seems worth while to examine somewhat more closely the management of syphilis at Aix-la-Chapelle, for there is no theoretical reason why similarly good re- sults should not be attainable at some of our own hot. sulphur springs. 22 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. ^Etiology. Aix-la-Chapelle. At Aix-la-Chapelle, mercury, properly given, is recog- nized as the true antidote to the poison of syphilis. And in agreement with the dictum of Sigmund, not only is the manifestation of mercurial poisoning held to be not needed, but syphilis is thought to be the more certainly cured in proportion as the body is protected from the toxic effects of mercury. The Aix method of treating syphilis consists in the an- cient practice of inunction, assisted by thermal baths and the drinking of mineral water. The writer has closely followed the reasoning and rules given by Dr. Brandis, one of the most experienced physicians of the spa, as laid down in a series of articles published in the Medical Press. For more detailed infor- mation the reader is referred to " Aachen als Kurort," edited by Du. Beissel, in association with the leading practitioners of the town, and published at Aix in 1889. Dr. Brandis insists on three points : 1. The body must always be adequately prepared for the absorption of the mercury, and the gray ointment must always be used carefully and in sufficient quantity. The patients are directed to take a warm bath of half an hour's duration, and at a temperature of 95° F., so as to be prepared for the subsequent inunction. From this rule it may be necessary to deviate for various reasons. A very frequent cause which compels us to allow another treatment to precede the specific treatment is mercurial- ism, the result of previous incautiously applied mercu- rial treatment. If we are to undertake the inunction cure it is necessary to pay- attention to the state of the skin. The Aix baths possess in a high degree the prop- erty of making the skin soft and absorbent. After the bath the patient must be most carefully dried, and im- mediately, in the bath-room, rubbed with gray oint- ment. During the entire treatment it is advisable to allow the patients to drink the warm waters ; two or three glasses should be drunk in the morning, and now and then in the evening also. In winter and cold weather they should be taken in bed ; during the summer and on warm days, while walking about. Nevertheless, we must carefully notice if the internal employment of the waters disturbs the digestion, if it take away the appetite and thus interfere with the fulfilment of a very weighty indication, namely, the good nourishment of the body. For removing the debility of the patients Dr. Brandis relies not on the use of the waters, but on the abundant drinking of warm milk, a measure the merits of which are not sufficiently appreciated. Vapor-baths, followed by copious sweating, are indi- cated where the mercury no longer exercises its action on the healing process, and later on, in spite of continu- ous employment of co-operating remedies, appears not merely to remain inactive, but to give place to a new outbreak of the disease. As a rule, therefore, patients are directed, possibly after the twentieth inunction, to take a vapor-bath on three consecutive days, and after that to take the baths after each tenth inunction. Dur- ing these days the rubbings must be discontinued. As to the method of performing the inunctions, Sig- mund's instructions are observed. But it is essential that competent rubbers do the work. The ointment must be rubbed in with the entire sur- face of the hand, and with both hands conjointly, so that when, for example, the legs are subjected to the rubbing, the surfaces of the hands glide up and down si- multaneously. The use of gloves and pads is prohibited, as absorbing too much of the ointment. Mercurial poisoning in the rubbers is not observed. Every rubbing is to last fully twenty minutes, ten minutes for each half of the dose. The instructions of Sigmund are as follows : On the first day rub both legs ; on the second, both thighs ; on the third, abdomen and breast; on the fourth, the back ; and on the fifth, both arms. Many patients, however, cannot endure the rubbing of the breast and abdomen ; in such cases the sides of the body and the nates are employed. The daily dose varies with the body-weight and the susceptibility of the pa- (SUPPLEMENT.) tients-between four and five grammes for adults, and from one to two grammes for children. 2. During a course of treatment the body must be maintained in good condition ; exercise in the open air, spacious bedrooms, personal hygiene, good food in plenty are all to be thought of in this connection. The treatment of the mucous membrane of the mouth is of great importance, for through its local treatment we must strive against the commencement of mercurial sto- matitis. Dr. Brandis employs a preparation made according to the following recipe : B- Pulveris aluminis, Plumbi acetatis... aa 30.0 Aquae destillatae 300.0 Misce et Ultra. This solution may be used diluted with pure water, or some aromatic water, about two dessertspoonfuls in a glass of water. The mouth must be regularly rinsed out, from the beginning of treatment, ten or twelve times a day, or even oftener ; even when taking walks the pa- tients must carry a small bottle of the liquid; and in urgent cases they must even use it repeatedly at night. After each meal the teeth must be brushed with a mixt- ure of prepared chalk and camphor. The author states that by most carefully carrying out these measures, we generally succeed in averting saliva- tion ; but occasionally it may happen that we may be obliged to suspend the inunction for a time. One thing more is to be observed-namely, we may accustom even highly sensitive patients to tolerate mercury. If we know beforehand that we have to deal with such, we begin with small doses of the mercurial ointment, and gradually in- crease to larger. Or if we have the misfortune to induce stomatitis, and are obliged to suspend the remedy, we postpone resuming it until all these symptoms have dis- appeared ; we then begin again with small doses, and gradually rise to larger. A practical suggestion relates to ulcerative processes, so frequently observed in the course of syphilis. It is not always quite simple to distin- guish mercurial from syphilitic ulcerations ; they both occur in the most different parts of the mucous membrane of the mouth, and may look very like one another. Be- fore all, this holds good of those mercurial ulcerations which occasionally appear on the tonsils and on the soft palate. Here frequently only long-continued observa- tion can decide the matter ; if, however, we are still in doubt, the inunctions must be suspended ; the mercurial ulcers will then heal, whereas the syphilitic ulcers will be aggravated. They also behave differently when cau- terized with nitrate of silver. The mercurial sore stands an energetic cauterization very well; in fact, its healing is furthered by it; whereas the opposite is generally the case with the venereal ulcers. Increased secretion of sa- liva may also occasion doubt, for at times syphilitic dis- orders which affect the cavity of the mouth directly pro- duce salivation. Another disagreeable result of the in- unction treatment is mercurial diarrhoea. This symptom sets in suddenly, the evacuations follow one another rapidly, there is pain and tenesmus, the stools are scanty and show mucus and blood. Treatment by opiates is indicated, but theinunctions must beat once interrupted. Healthy persons lose in weight if subjected to mercu- rialization. In contradistinction to this, syphilitic patients gain in body-weight as soon as they enter the stage of convalescence. This applies to recent cases, as well as to those of old standing. The inunctions must be employed for a sufficiently long time. As our task consists in healing the symptoms of the disease, and, as much as possible, in averting re- lapses, the earlier the syphilitically infected person is brought under mercurial treatment, the milder is the course of the illness. 3. Above all things, Brandis insists that we must not too soon dismiss the patient from treatment; indeed, never, until all symptoms have disappeared, up to the last ves- tige ; and also, that even the slightest attacks must be 23 Aix-la-Cliapelle. Akinesia Algera. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. energetically treated from the outset. If experience shows us on the one hand that an inadequate treatment either fails to remove completely the existing symptoms, or, where complete recovery is achieved for the time, can- not avert later relapses, on the other hand we find that the desired result will be obtained in both directions, in those difficult and obstinate cases in which a long and energetic mercurial treatment must perforce be carried through. In all ordinary cases the inunctions are prolonged eight or ten days beyond the time of healing of visible lesions, and the thermal baths need not be given for a longer period. It is probable that Dr. Brandis goes a little too far when he claims that there are absolutely no contra-indications to anti-syphilitic treatment, as practised at Aix-la-Chapelle. The writer has visited Aix on several occasions, and he is convinced of the great efficacy of its waters, when (SUPPLEMENT.) and contains over fifty douche-rooms-general and local vapor-baths, swimming baths, and a large number of other baths, as well as the throat, eye, and ear douches, inhalation- and spray-rooms. Two thousand douches and one thousand baths can be, and often are, given daily. The principal application of the Aix waters is by what is now called the " douche massage" (Forestier). The patient is taken into one of the large douche-rooms,where he is met by two of the attendants, male or female as the case may be. They seat the patient on a wooden stool, and, one taking the lower extremities and the other the back, they shampoo, knead, or rub according to the di- rections previously given by the patient's medical ad- viser. This is the " massage,'' in which all the attend- ants are skilled at Aix, it having been handed down to them from father to son, and from mother to daughter for many years past. The masseurs each have a hose under their arms from which they direct the water over Fig. 14.-Method of Conveying Patients to and from the Thermal Establishment at Aix-les-Bains. (The Patients are Wrapped in Blankets only.) used in conjunction with other remedies. But the very aged and extremely debilitated, as also the very young, should be judiciously treated at home, rather than incur the risks of a long and tedious journey to the ancient spa of Aix-la-Chapelle. Although it is an " all the year round '' watering-place, the warm season should be given the preference. In the fall and winter months, the town is cold, dreary, and depressing, a circumstance worth remembering in sending patients there. Edmund C. Wendt. AIX-LES-BAINS. In addition to the information al- ready published (see Vol. I. of Handbook) concerning Aix, it may be well to give a supplementary description of certain features of this popular spa. It is not to be forgotten that no other resort in France is so largely fre- quented in the summer months by English and Ameri- cans as Aix-les-Bains. Dr. Linn (The Climatologist, June 15, 1892) has given a resume of Aix in its modern de- velopment as a fashionable resort, from which the fol- lowing account is taken: The thermal establishment is one of the finest in France, the bather. It is this massage under the hot sulphur water that constitutes the principal treatment at Aix. The temperature of the water is varied by the physician's orders. As a rule, ten to fifteen minutes is the duration of this operation, when the patient is rubbed dry and en- veloped in a blanket, put into a bath-chair and carried home by porters, who not only take him to his hotel, but also to his room, and place him in bed. This specialty of Aix is most important, as a rheumatic person seems to obtain more barm than good by having to dress after a douche or bath, and walk home afterward. The waters of Aix-les-Bains are so abundant that they are allowed to flow away from an ugly public fountain. They act energetically by a stimulation of the cutaneous surface. It is, as it were, a purgation of the skin, mak- ing it eliminate whatever excrementitious matters may have been retained in the system, and relieving conges- tions of the deeper parts or organs, while giving a stimu- lus to the circulation in general. To this may be added the effects of the mineral elements in the waters taken into the system and blood both by drinking them and in- haling them during the douche and baths. 24 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Aix-la-Chapelle. Akinesia Altera. Dr. Linn accepts the usual indications for treatment, such as gout,rheumatism, skin diseases, syphilis, catarrhal affections of the respiratory passages, etc. But he has this to say as to contra-indications: " It is easy to understand that all acute diseases would be better without the stimulation of the Aix treatment, and that its province is in chronic troubles only. Degeneration ■of the muscular fibre of the heart is a contra-indication, but valvular affections coming.from a rheumatic cause im- prove at Aix,unless there be a tendency to syncope. Under this heading we think that patients should be warned against taking these powerful massage douches without medical advice, as they are apt to do great harm by an in- judicious use of them. Many people insist on the masseurs giving them a vigorous treatment, when they have no proper power of reaction, and simply exhaust themselves, producing a state of feverish debility and weakness. Others, again, when the baths are crowded, get up at a very early hour to secure a douche or to have their morn- ing free. We are of opinion that in many cases it will be found best to have a light breakfast and take the douche, as we do a sea-bath, at nine or ten in the morning or even later, and npt attempt to turn out delicate people at five •or six o'clock on a cool or wet day. As to the best time of the year to take this treatment, as a rule it should be during the summer months, June io the end of September, when the external warmth and greater equa- bility of temperature, less risk of chill and its conse- quences, will allow patients who have rheumatic trouble, •especially, to get the best results. It is remarked that July and August are the crowded months at the hydro- pathic stations, and many volumes have been written to try and persuade the good public that they would do bet- ter to come at other times; but the great mass are right, for very delicate people the hot months are the best for .bath treatment. " The establishment is, however, open all the year round, and those who like bracing air and want more reasonable rates can come at any time. The duration of the treatment has been rather arbitrarily fixed at three weeks or twenty-one days, but this depends on the case, as almost every patient demands a careful study by a physician, who alone can fix the time. It may be said, though, that many people get saturated with strong min- eral waters in about three to four weeks." Aix now has two casinos, the " Cercle " and the " Villa des Fleurs." Good music and operas, reading-rooms, a race-course, pigeon-shooting, tennis, and other " distrac- tions" are always provided at Aix. There are excellent •opportunities for pleasant walks and excursions. The hotel and boarding-house accommodations are ample and .highly satisfactory. Concerning Marlioz, which is almost now a part of Aix, the same author gives the following informa- tion : " Marlioz, an important sulpho-sodiac and bromo- iodurated water, is in the suburbs of Aix, and now forms part of it. It is a pleasant walk down the Avenue de Marlioz of about fifteen minutes, and the omnibus or tram runs there in less time. There are three springs, which are compared to the sulphur waters of the Py- renees, like Eaux Bonnes. These springs are much richer in mineral elements than the hot waters of Aix itself. Patients live in Aix, but some rooms can be had close to the pretty little establishment in Marlioz. The specialty here is throat troubles. Its pulverizing or spray arrangements and inhaling-rooms are excellent and complete in every particular ; there is also a good bath- ing department. The waters are highly efficacious in all chronic affections of the respiratory passages, chronic catarrhs, etc. ; and form with the Chalies water, which is also given in Aix, drawn from fountains in the chem- ists' or druggists' places like soda-water, a valuable ad- junct to the other courses of treatment given in Aix-les- Bains." Altogether the spa of Aix-les-Bains deserves the popu- larity which has been so liberally bestowed upon it by the exacting Anglo-American public. Edmund C. Wendt. AKINESIA ALGERA. Moebius' has given this name to an array of symptoms, among which the most char- acteristic is loss of power of movement as the result of accompanying pain, while no sufficient cause for the lat- ter symptom has yet been found. The cases which he reports -were persons of neurotic inheritance, so-called desequilibres, in whom the disease manifested itself after mental over-exertion. In the one case neurasthenia, in the other hysteria, was present. In both cases the disease was quite protracted. The first case reported by him occurred in a man, a teacher in the gymnasium, thirty-three years old. The father suffered from paranoia. The patient during his youth was very excitable and extremely ambitious. No history of sexual perversion. In 1887 he suffered from headache and in- somnia. In the spring of 1888 he was unable to carry on his work, and was sent to an institute. Subsequent to this there occurred a loss of memory for three or four weeks. After every movement the patient experienced a heaviness of the limbs and pains in the muscles. Im- provement took place under prolonged rest, or the Weir Alitchell treatment. Following this a relapse occurred, during which the patient abstained from all movement of the limbs. The skin- and tendon-reflexes were present; the patellar reflex was quite marked. On the right side the ankle reflex was weak ; on the left it was marked. There was found hypenesthesi^ in the hands and forearms; no points of pain, however, were discovered. Organs of special sense normal. Every voluntary movement of the limbs and trunk was accompanied by severe pain, lasting for hours. These pains were most marked in the forearms. The head was free from pain, and there was no difficulty in moving it. There was a very slight muscular atrophy of the left hand, which was possibly caused by the pressure of pasteboard splints. In the way of treatment, bromide of potassium, given in the evening in doses of from three to four grains, pro- duced rest. Hypnotic suggestion was without result. Improvement followed after several months' rest. The tendon reflexes became weaker and finally normal, there remaining a weak ankle clonus on the left side. Subse- quent to this, and following a considerable excitement, a relapse occurred, with subsequent improvement. The hands, however, remained quite painful. The second case occurred in a woman, forty-three years of age, by occupation a teacher of music. A neuro- tic family history was given. From her twentieth year onward the patient had suffered from tremors, with semi- unconsciousness. The hands were painful, and were held in a flexed position. She also suffered from in- somnia, and was incapable of mental work. The feet were painful, and walking was impossible. After suffer- ing in this way for ten years, improvement set in, and the patient was comparatively well for a subsequent period of ten years. In the summer of 1889, probably as the result of over-work and excitement, a relapse occurred, from which she had not recovered up to the time of the report. There were found, extreme irritability, a forced position of the hands, and pain in the legs. The latter could be moved, but they soon became tired, and suffered from quite severe after-pains. Auditory and visual func- tions were normal. Hypnotic treatment without result. The patient twice attempted suicide, and finally gave evi- dence of mental trouble, with hallucinations of persecu- tion. She subsequently died in an insane asylum. In a subsequent publication2 Moebius reports another case in which, in addition to the absence of motion re- sulting from pain, and really superseding it in impor- tance, there was present an extreme degree of photopho- bia. We have here a condition very similar to that which has occurred in regard to motion, a condition in which the patient will not see because of the attending pain. Moebius seeks to widen the term by calling it " Apraxia algera," or abeyance of the function of any or all or- gans because of the pain attending their functional ac- tivity. In the last case this was very w'ell illustrated by the very severe pain in the head attending any mental effort 'whatever. The case has a further interest in that the 25 Akinesia Altera. Alexander-A dams. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) report is taken from the " Autonosography " of the dis- tinguished psycho-physicist, Gustav Theodor Fechner. Longard3 reports a case occurring in a young lady, aged twenty-nine. Her mother had suffered from ar- thritis deformans ; her father, in 1874, became, afflicted with paranoia. The patient had for years previously suffered from pelvic troubles (pelvic inflammation, uter- ine fibroids, metritis, etc.). The symptoms observed in this case were mental excitement and peculiar pains over the entire body, which later became so severe as to com- pel the patient to abstain from all motion. The psychical excitement also increased. During the later period of observation, retention of urine, marked constipation, and very obstinate insomnia showed themselves. Objective- ly, an increase of the tendon reflexes was found. The course of the disease was not materially altered during six months' treatment in the hospital, improvement oc- curred later as the result of improved surroundings. Longard calls attention to the fact that these cases of akinesia algera give the same clinical picture as was formerly described under the name of spinal irrita- tion. According to Moebius the affection is a functional or psychic one, and is not due to organic disease. The pains he regards as hysterical, or pain-hallucinations. The disease itself is not, however, a pure hysteria, but may be regarded as an analogue of the general anaesthesia described by Krukenberg, Heyne, and von Ziemssen. The cases reported by W. Neftell in 1883, and called by that author Atremia, are regarded by Moebius as similar to his cases. The prognosis is not very favorable. In the matter of treatment the best thing to do is to accede to the wishes of the patient for rest. S. P. Kramer. 1 Dent. Zeit. fur Nervenheilkunde, 1891, vol. i. 2 Ibid., vol. li., 431. 3 Ibid., vol. ii., 455. ALASSIO. A winter health-resort on the Italian Riviera, which is lately claiming an increased share of attention. It is prettily situated, but owing to its com- parative newness the accommodations for invalids are far from perfect. The only reliable meteorological data avail- able are those of Dr. Schneer (" Alassio and its Climate," Turin, 1878) and a synopsis published by Dr. M. G. Foster {British Medical Journal, November 7, 1891). Dr. Foster, who is now practising at San Remo, informed the writer that the authorities of Alassio appeared to lack energy in effecting reforms, more particularly from a sanitary point of view. Dr. Foster spent two winters at Alassio, and did not observe any typhoid fever there ; but it is said to occur there every summer. There is no system of drainage, the excreta being collected in cess- pools. The drinking-water is hard, but as to organic impurities reliable (lata are not at hand to justify its condemnation or acceptance. Sparks (" The Riviera," London, 1879), claims that the water is good and potable. Alassio is on the north shore of the Mediterranean, about equidistant from Nice and Genoa. It lies at the head of a curving bay, which is some five miles wide. The town has about 6,500 inhabitants. Its latitude is about the same as that of San Remo. Dr. Foster's de- scription is here reproduced, as it is accurate and devoid of local bias: " Without the gates of the city proper at either end stretches a suburb composed of dwellings of the Italian population mingled with a few villas. Each of these suburbs contains a hotel situated facing the sea, while a third is placed about a hundred yards behind the main street of the town. The villas of the English residents are dotted over the lowermost spurs of the encircling hills. The hills form an unbroken semicircle round the town. Their greatest elevation is on the north (1,963 feet). Numerous valleys run up among the lower spurs of these hills, but none pierce them. " Alassio thus secures good protection from the north, ■west, and southwest. The seashore is generally windy, but in the valleys running up among the hills the wind' is rarely severely felt, and on most days the air in these- situations is almost entirely still." The records of temperature (as given by Foster) are as follows: " October has a mean temperature of 61.9 Fahr. November " " 54.3° " December " " 49.7° " January " " 47.3° " February " " 48.2° " March " " 52.3° " April " " 56.4° " May " " 64.3° " " The mean temperature of the three winter months is therefore 48.4° F." Turning now to the rainfall observations, the records give the following results : "October showsan average of 7 days on which rain fell, an average rainfall of 93.1 millimetres, and a mean relative humidity of 55.2. "November shows an average of 8.6 clays on which rain fell, an average rainfall of 163.7 millimetres, and a mean relative humidity of 58. " December shows an average of 5.6 days on which rain fell, an average rainfall of 43.3 millimetres, and a mean relative humidity of 55.4. " January shows an average of 4.3 days on which rain fell, an average rainfall of 60 millimetres, and a mean relative humidity of 52.9. " February shows an average number of 4.8 days on. which rain fell, an average rainfall of 70.9 millimetres, and a mean relative humidity of 55.7. " March shows an average of 6.6 days on which rain fell, an average rainfall of 50.7 millimetres, and a mean relative humidity of 57.9. "April shows an average of 10.8 days on which rain fell, an average rainfall of 111.9 millimetres, and a mean relative humidity of 62.8. " May shows an average of 5 days on which rain fell, an average rainfall of 46.4 millimetres, and a mean rela- tive humidity of 63.1. " Fog has been recorded on 14 days in the six win- ters. " In his summary of what class of cases are likely to- derive benefit from a winter residence at Alassio, Dr. Foster expresses the following opinions : "The climate of Alassio possesses those advantages- which a tolerably high and fairly equable temperature, abundance of sunshine, and freedom from fog can give. Cases of gout and chronic rheumatism do well there. Cases of heart disease certainly appear to do well ; they eat and sleep better, and, with ordinary precautions, at- tacks of secondary bronchitis can be prevented. Cases of bronchitis and emphysema, with care, keep very free from winter cough. Cases of phthisis require very care- ful selection. Early cases, with limited consolidation and only slight fever, generally do well. Later cases with cavities seem to show improvement, the cough and expectoration diminish, and, since the patients can gener- ally pass a fair amount of time in the open air, the appe- tite and sleep are both improved. Cases characterized by frequent hemorrhage, with only slight physical signs, seem generally to do well. Owing to the proximity of the principal hotels to the sea, the effect of the climate varies in different cases ; some patients sleep badly by the sea, and thus lose much of the benefits ; others again sleep better there than elsewhere. Weakly and strumous children certainly show great improvement, as they can pass a large amount of time on the seashore. Finally, with regard to that numerous class of cases which are sent to the Riviera under the generic title of nervous breakdown, some cases seem to show great improvement and regain their lost health, while in other cases all the symptoms appear to become aggravated." Alassio is a somewhat cheaper place to live in than many of the other Riviera stations. Edmund C. Wendt. 26 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Akinesia Altera. Alexander-Adams. ALEXANDER-ADAMS OPERATION. The operation of shortening the round ligaments for the cure of pro- lapsus uteri was proposed by Alquie, as applicable to the cure of retroflexion. Aran, according to Tillaux, sug- gested this operation. The same thought occurring to Freund he performed the operation on the cadaver. It was first performed on the living subject by Alexander, of Liverpool, in 1881. Adams, of Glasgow, performed it in 1882, without a knowledge of Alexander's opera- tion. During the past ten years the operation has been done hundreds of times, and principally in America. This operation has been severely criticised by many, both here and abroad, but on carefully looking up these criti- cisms it was found that they were wholly based on theo- retical grounds, or had been brought forward by those who had not done the operation sufficiently often to be familiar with it or its results. Those who have done the operation the most times and have seen the excellent re- sults that follow in properly chosen cases, are its most enthusiastic advocates. Hysterorrhaphy is advocated by some, especially by operators on the Continent, in prefer- ence to the Alexander-Adams operation. I have had considerable experience with hysterorrhaphy for the re- lief of retroversions and flexions, both with and without adhesions, attended both with and without prolapsed and adherent ovaries. My results have been excellent, there having been but one failure and one death in quite a con- siderable number of cases. As far as I can ascertain we have no data relative to the effect of pregnancy on the adhesions produced between the parietal peritoneum and the peritoneum covering the uterus. With the other operations inside the abdominal cavity that secure the forward position of the fundus uteri I have had no experience. But opening the ab- dominal cavity is not wholly without danger, conse- quently the Alexander-Adams operation is preferable, especially as it will accomplish, in just as satisfactory a manner, everything that an intra-abdominal operation will do, and it is practically free from danger. Indications for the Operation.-1. For the cure of uncomplicated retroversions and retroflexions where the patient is desirous of getting rid of wearing a pessary which necessitates her consulting a physician at stated intervalsand makes her feel that she is still on the invalid list. Patients often choose this operation to avoid wear- ing a pessary. 2. For the cure of retroversions and retroflexions where a prolapsed ovary or ovaries prevents the wearing of a pessary, either by mechanically diminishing the trans- verse pelvic space, thus causing a pessary to ride ob- liquely instead of horizontally, or where, through sensi- tiveness of one or both ovaries, a pessary cannot be tol- erated. 3. For the cure of retroversions and retroflexions with prolapse in the second degree, and for all cases of pro- cidentia ; it being understood that whatever plastic ope- ration on the vaginal walls or perineum is called for, shall be done at the same sitting. As this operation diminishes a rectocele, but increases a cystocele, I advise doing the Alexander-Adams operation before operating on the vaginal walls. All operations on the vaginal walls can be done without bringing any strain on the round ligaments, just fastened in their new relations. If a tra- chelorrhaphy is called for it should be done at the same sitting with the Alexander-Adams, but prior to it, as all dragging down on the round ligaments should be avoided. 4. For the relief of lateral displacements, retroversions, and retroflexions with adhesions. Often, after packing faithfully for weeks, sometimes for months, in the Sims position, we are unable to relieve this class of cases, the more or less fixed position of the uterus and our inability to keep it forward in anteversion being due to adhesions between ovary and tube, or ovaries and tubes, and peri- toneum covering uterus, broad ligaments, rectum, or in- testine. In my experience these cases give a history of septic peritonitis following labor, abortion, or salpingitis. In opening the abdominal cavity in cases where there has been for months or years retroposition with adhesions- often cases of pyosalpinx with a history of repeated at- (SUPPLEMENT.) tacks of peritonitis-I have over and over again been sur- prised at the ease with which the uterus could be ante- verted by the intra-abdominal fingers, and in a good proportion of the cases the fundus would stay forward without being supported. This led me in 1889 to make attempts, under ether, through the rectum, to replace uteri retroverted or retroflexed and adherent, after the packing bad been thoroughly tried. The index linger of the left hand is passed up the rectum, the patient being thoroughly etherized, flat on the back on an even hard surface, with the knees -well separated and the thighs drawn forward to an angle of forty-five degrees with the table. The index finger is passed up until, with the aid of counter-pressure by the right-hand fingers through the abdomen, it feels the whole of the posterior surface of the uterus, the posterior surface of the broad ligaments, the fundus, the ovaries, and the tubes. In this way all the pelvic structures can be actually examined and their re- lations to each other, changes in size, etc., can be more accurately determined. Then gently, but slowly, the uterus is ante verted. At times the adhesions are over- come with difficulty. Dr. Conant and myself worked over one hour in breaking up the adhesions in one case, and half an hour is no unusual time to be consumed in replacing the uterus. Then, while the uterus is held in position by a Kingman's or Emmet's uterine repositor, the cervix being pushed well back into the post cul-de- sac, an Alexander-Adams operation is done. The uterus is thus held upward, non-flexed, and forward while the raw surfaces of the peritoneum are becoming adherent to- each other. In some cases it is impossible to correct the retrodis- placement, owing to the quantity, quality, or location of the adhesions, without using more force than would be safe. In such cases, if the condition of the patient de- mands interference,-or if she is sterile and willing to run the risk, coeliotomy should be done, all adhesions broken up, and the uterus fastened in anteversion by hysteror- rhaphy. This combination has worked admirably in cases where it was impossible to satisfactorily replace the uterus through the vagina or rectum. When, the patient being under ether,-and a diagnosis not made when the patient is thoroughly anaesthetized should not be accepted as final,-the tubes are found to contain fluid or are much enlarged, I think it advisable not to interfere with adhesions, for fear of rupturing the tube or tearing away the fimbriated extremity, thus allow- ing septic material to escape into the peritoneal cavity. 5. While witnessing Dr. Conant make several dissec- tions for the round ligaments, I was surprised to see how securely and evenly the internal abdominal rings were closed when the round ligaments were drawn out, and it occurred to me that the Alexander-Adams operation might be done for the radical cure of hernia. Dr. Conant wrote me the following, under date of August 24, 1892 : " I have had one case for radical cure of hernia by the Alexander operation. The case was one- of double inguinal hernia in a young girl of nineteen. I practically did the regular Alexander, except that I was somewhat puzzled to find the round ligament on the right side, owing to the size of the sac. The result of the operation was very gratifying. Previous to the operation, which was done last spring, she was unable to work, but since the operation she has been at work for the last three months. She is in good health, although she has some pain at times in her left side. I have examined the case within a week and found a firm cicatrix about the pillars of the rings on both sides. She never wore a truss." In October, 1892, I did an Alexander-Adams operation for procidentia of six months' standing, and left inguinal hernia. At the present time (January, 1893)' the uterus is in perfect position, there is complete relief of all symptoms, and there has been no symptom of a return of the hernia. 6. In two cases I have done the Alexander-Adams oper- ation to prevent incarceration of a fibroid which threat- ened to take place at any time, the growth of the tumor being very rapid. In both cases severe symptoms from pressure were present. In both cases the fibroid, which 27 Alexander-Adama Operation. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) was interstitial, in the posterior uterine wall, was got out of the hollow of the sacrum with great difficulty. In both cases, one a woman who had borne five children, the other not married, the ligaments were as large as a No. 2 Faber lead-pencil. The first case was operated on in March, 1891 (reported in list of cases). Examina- tion one year later revealed the uterus to be in perfect position, with a marked diminution in the size of the fibroid. (Treatment with the idea of arresting the growth of the fibroid had been continued throughout the year.) The second case was operated on in June, 1892. At present (October, 1892) the uterus with its large fibroid is up out of the pelvis, and there is relief from all former distressing symptoms. Those opposed to this operation bring forward the fol- lowing objections : 1st. That the ligaments are often absent. 2d. That there is great difficulty in finding the liga- ments. 3d. That it is a dangerous operation. 4th. That it prevents the usual course of pregnancy, causing it to terminate in abortion. 5th. That after pregnancy the uterus returns to its former malposition. 6th. That it may give rise to serious secondary symp- toms or conditions. 7th. That it is limited in its application. 8th. That it will soon become obsolete. 1. In my experience with over one hundred and twen- ty-live cases, I have never failed to find the ligaments except in one case. This was among the very first operated on. No doubt the ligaments were present and of good size, but I failed to find them. Since then I have operated successfully on a case where the operation had been attempted, but abandoned on account of the inabil- ity of the operator to find the ligaments. The patient was told that she had no round ligaments. I agree with Dr. W. M. Conant in his statement, that " The ligaments are never wanting provided there is a uterus." They may be very small, but they are there and are of a good size nine times out of ten after they are drawn out. 2. The difficulty in finding the ligaments depends en- tirely on the experience of the operator. The descrip- tion of the operation given in many text-books is mis- leading. The beginner is led to think that he is about to do an operation the success of which depends on his ability to recognize each layer of tissue and every vessel and nerve from the skin down until he has reached the aponeurosis of the external oblique muscle. Now this is at times difficult to do with thin abdominal walls, and often so in a fat patient, and it is no wonder that the be- ginner gets wound up with a round turn just at the time when it would mean success for him to have some fixed and easily recognized landmarks. Many descriptions of the modus operand! of the Alexander-Adams operation remind me of the old way in which an abdominal sec- tion was described-where layer by layer the tissues were cut through on a grooved director with a dull knife down to the peritoneum, more time being used up in getting inside the peritoneum than is now often con- sumed in getting in, doing what is necessary, and getting out. If the operator will mark, read, learn, and in- wardly digest Alexander's excellent article, fully describ- ing the operation, in the " Transactions of the Interna- tional Medical Congress," 1887, vol. xi., p. 742, and Mundi's admirable article in the American Journal of Obstetrics, 1888, he will have no difficulty in finding the ligaments. 3. Alexander has operated eighty-four times and has never had a death, and in the article above referred to he says, " I no more expect a death from it than I expect a death from an amputation of the finger." Munde has operated thirty-seven times and has never had a death nor any unpleasant results. Reid has operated thirteen times with no death. Edebohls has operated twenty-nine times with no un- pleasant results. Newman, in 1888, read a paper on this subject, and estimated there had been up to that time three hun- dred cases operated on. Of this number he knew of three deaths. W. M. Conant has operated over thirty times with no death. F. B. Harrington has operated twenty-five times with no death. Kingman has operated over twelve times with no death. Burrage has operated over sixteen times with no death. J. G. Blake has operated twenty-five times with no death. J. B. Swift has operated thirteen times with no death. I have operated over one hundred and twenty-five times with two deaths. The first was due to acute sep- sis. The abdominal cavity was opened while drawing out one of the ligaments. This was among my first operations and before the rigid asepsis now employed was used. The second was due to pneumonia and occurred six days after the operation. The wounds had healed by first intention throughout. The various journals for the past few years have contained abundant testimony like the above. In over two hundred and forty-six cases operated on in Boston, most of the cases having been operated on since 1888, I have been able to learn of only three deaths, two mentioned above and a third, due to sepsis, the bladder having been opened on the left side, either by the knife or a deep stitch. On this followed infiltration of urine with pelvic abscess, to which the death was to be directly attributed. In nearly a thousand cases collected by Dr. W. M. Conant he found a record of only seven deaths. 4 and 5. These can best be answered in one. That it does not prevent the usual course of pregnancy can, as Dr. Conant has shown, be best determined by a ref- erence to the cases reported. He collected twenty cases ; seven by Alexander, five by Munde, two by Co- nant, two by Johnson, and four unknown. Alexander claims that pregnancy is favored by this operation and that there is little danger of the return of the former malposition. Dr. Munde wrote Dr. Conant as follows: " In four the uterus remained in its normal position after confinement. One, done for prolapse, became pregnant soon after the operation and after the confinement the prolapse returned. This is the only case where the dis- placement, retroversion or prolapse, returned after the operation, so far as I know." Dr. Conant's first case was the first one he operated on ; about a year after the operation she was married and was unwell only twice, when she became pregnant. She has been delivered at term. My two I will report here at some length. Case I.-Diagnosis under ether : Ruptured perineum ; retroflexion ; bilateral laceration of the cervix ; left ovary prolapsed and adherent at a point close to the uterus at the base of the left ligament. By packing, the uterus was got into normal position, but a pessary could not be worn on account of the prolapsed and adherent ovary. She was advised to have the lacerated cervix operated on and to have an Alexander-Adams operation to relieve the sagging and dragging down. She had aborted four times since her last confinement live years ago. The operations were done in February, 1890, and perfect results were obtained. In a few months she became pregnant and was delivered at term. The family attendant answered the following questions. Length of labor? "About one and three-quarters hours." Sex and weight of child? "Boy; nine and one half pounds." Character of labor ? " She had good pains, better than ever before." Puerperium ? "She remained in bed fourteen days. She flowed a good deal-not post-partum hemorrhage,- but during her stay in bed she lost considerable blood, although there was good and permanent contraction of uterus. She was weak on getting up, but nothing of interest occurred. She nursed the baby." One year after pregnancy took place she was examined at my office. The symptoms for which the operations had been done had never returned. The uterus was in per- 28 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Alexander-A dams Operation. feet position. Cavity measured two and one-half inches. No discharge from vagina or cervix. Case II.-Sterility. Diagnosis under ether : Retrover- sion with adhesions ; left ovary prolapsed and adherent; chronic endometritis. She had been married five years. Never pregnant. Sought relief for the sterility and for back-ache and pain in the left ovarian region. January, 1891, the uterus was forcibly restored to its normal position and the round ligaments wrere shortened. Both sides suppurated, but the result was perfect, except that the uterus was drawn over toward the right side. She became pregnant two months after the operation and was delivered at term. Examined at my office one year after confinement. Ute- rus was in the same position that it was directly after the operation. Left ovary could not be found. Since the operation there has been complete relief of all back- ache and pain in left ovarian region. 6. I have had four cases in which pneumonia followed this operation, but I could see no connection between the operation and the lung trouble. All four occurred in hospital practice, during the winter, and at a time when the grippe was very prevalent. One case, noted above, died. I have had several cases in which pneumonia followed coeliotomy and in no way, so far as I could see, was it connected with the operation. Cases of cystitis have been reported, but I have seen but one such case, and I attributed it to washing out the bladder. For the relief of frequent and painful micturi- tion the nurse in my absence was ordered to wash out the bladder, and a violent cystitis followed, lasting two weeks. In quite a large proportion of the cases operated on by myself there has been bladder-trouble, showing itself in frequent and painful micturition with scalding referred to the meatus and urethra, and suprapubic distress or dull pain. In some cases there has been tenesmus with the forcing out of a few drops of blood at the end of micturition. In these cases the urine has been of a high color, high specific gravity, and loaded with mucus and urates. Unfortunately, in almost every case after this operation there is inability to empty the bladder for the first twenty-four hours, and sometimes it is three or four days before the catheter can be dispensed with. But in some of my cases the above symptoms occurred when no catheter was used, and whenever the catheter was em- ployed the greatest vigilance was exerted to secure clean- liness. In the cases where no catheter was used, the symp- toms were usually less severe, lasted a short time, and were more amenable to treatment. Still, the severest cases got well after a time. One class of these cases is peculiar, and points to the fact that the operation is directly the cause of the bladder trouble. In this class there had been no previous bladder trouble, no retention, and no cath- eter had been used. The bladder symptoms appeared, but not for eight or ten days, and in one case they did not appear for three weeks after the operation. I have gone thus extensively into the bladder trouble following this operation, as it is a strong point with the opponents of the Alexander-Adams operation. For twelve years I have seen a great deal of gynecological surgery, both hos- pital and private, and at the hands of the very best men, and have known the above-mentioned bladder symptoms to be present, even severe attacks of cystitis, over and over again, after perineorrhaphy where the catheter was used, after trachelorrhaphy and operations on the vaginal walls where no catheter was used, and after coeliotomy both where the catheter was and where it was not used. I have known of one case of double phlegmasia alba do- lens. It followed an attempt to do an Alexander-Adams operation, but the ligaments were not found. Drainage was used and was probably the cause of the trouble. In almost all of my cases where the nerve was broken or in- jured in drawingout the ligaments there was more or less neuralgic pain in the neighborhood of the incision. At times the pain would extend upward as high as the floating ribs, at times it would reach over the thigh and down the sciatic nerve and its branches. These pains were complained of usually after the patients were up (SUPPLEMENT.) and about, or after they had got home. In these cases an attack was pretty sure to come on at menstrual periods. These attacks of pain come on every day or two, lasting from a few minutes up to an hour or two, but in the se- verest cases give no trouble after a few weeks. A burn- ing feeling in the incision, with numbness in the mons veneris lasting from a few days up to a week or ten days, was not uncommon. It occurred in at least ten cases. Haematuria occurred in three cases. They were cases of retrodisplacement with extensive adhesions, and the for- cible breaking up of these adhesions, as pointed out by Dr. Conant, may have injured the ureters. The hem- orrhage was small and occurred only during the first twelve hours after the operation. The liability to hernia has been brought forward as an objection to the operation. If the operation is properly and successfully done no hernia can occur, as the internal abdominal rings are completely and securely covered over by the anterior surface of the broad ligaments. Unfortunately, sloughing of the wound is not uncom- mon in the experience of all. Whether the fault is in the ligament, its vitality being poor, whether the fault lies in the poorly vitalized aponeurosis to which we fasten the ligaments, or whether the damage is due to the bruis- ing and stretching of the ligaments during extraction, has not yet been settled. That this suppuration is not due to the operator or to the variety of suture material used, has been proved. After looking over the cases it was found that suppuration occurred in thin as often as in fat ab- dominal walls. In the first twenty-five cases done by Alexander, nearly one-third sloughed on one or both sides ; in the remaining fifty-nine cases only two sloughed. Sloughing of the wound delays convalescence, and often sinuses remain until the sutures put in to hold the liga- ments are discharged or removed. Sloughing of the wound does not interfere with a perfect result as far as the position of the uterus is concerned. Sloughing of the w ound is not dangerous if the pus is let out as soon as formed. I have never known an instance where peri- tonitis or any intra-abdominal symptoms followed slough- ing of the wound. 7. Enough has been said above to show that it is not limited in its application. 8. It certainly will be a long time here in Boston before this operation becomes obsolete. Those who see much of gynecological practice are doing the operation more and more. In proportion to its size I doubt if there is a city in this country where more men are doing this operation than in Boston. A success surgically and a success therapeutically are two very different things. Those who are most pleased wuth the operation are those who know enough about gynecology to operate on proper cases. Anatomy.- "The round ligaments are two fibro- muscular cords that arise from the upper end of the uterus anteriorly and run through the superior portion of the broad ligament to the internal ring and pass through the inguinal canal, and terminate in fibrous ex- pansions over the symphysis, becoming lost in the mons. They can, therefore, be divided into three parts-the portion external to the canal, the portion in the canal, and the portion within the pelvic cavity. The pelvic portion is attached to the upper angle of the uterus, in front of and just belowr the origin of the Fallopian tubes. It runs in the anterior fold of the broad liga- ment, and comes upward, outward, then forward and inward to the internal ring. After it leaves the broad ligament it is covered with peritoneum and lies in the lateral wall of the pelvis, crossing the external iliac ar- tery. At the ring the epigastric artery is to the inner side, and at the operation can be easily felt pulsating. At first the ligament is large, but in leaving the broad ligament it is smaller and rounded. In the canal it ta- pers gradually, and has the same relations as the sper- matic cord. As it leaves the external ring, the ligament runs near the outer side of the pubic spine and then each breaks up over the symphysis into thin sets of fibres. A branch of the genito-crural nerve lies to the outer side of the ligament as it emerges from the ring. 29 Alexander-Adams Operation. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. The length of the ligament is about four inches. Be- sides areolar tissue and vessels, the ligaments contain, •chiefly in their inner third, plain muscular fibres which are prolonged into them from the outer muscular layer of the uterine wall. Each ligament receives a covering from the peritoneum which projects into the internal Ting as the canal of Nuck. When traction is made on the round ligaments the uterus is pulled forward and up- ward; the broad ligament resumesits normal position, and a prolapsed tube and ovary are lifted out of the pos- terior cul-de-sac. There seems also to be puckering up •of the broad ligament." (W. 31. Conant.) Preparation of the Patient, Operator, Instruments, Liga- tures, Sponges, etc.-Thirty-six hours before the operation ■one ounce of castor-oil is administered. After this noth- ing but gruel is allowed for nourishment, and the patient is kept in bed. The evening before the operation the patient takes a tub-bath, and the abdomen below the' umbilicus and the pubes are thoroughly washed with soapsuds and all the hair shaved off; then the parts are washed with ether, then with a 1 to 1,000 solution of cor- rosive sublimate, and a corrosive sublimate pad (1 to 3,000) is fastened over the whole lower abdomen and pubes. This pad is not disturbed until the patient is ■on the table ready for the operation. Every six hours, beginning thirty-six hours before the operation, the vulva is washed with a 1 to 1,000 solution of corro- sive sublimate and vaginal douches of the same strength are given. Two hours before the operation two ounces ■of whiskey are given by the rectum, and one hour before administering ether one one-hundredth grain of atropia is given by the mouth. In several years' ex- perience with atropia, it has been found that when it is administered as above, seven-tenths of the patients •do not vomit on coming out of the ether, and in part, or wholly, it prevents the filling up of the mouth and fauces with mucus. While the patient is being ether- ized, the instruments, ligatures, sponges, and towels are placed in an Arnold steam sterilizer. The room, table, and clothing has been prepared as if a coeliotomy was to be done. The operator and assistant remove their outside garments, substituting freshly washed cotton trousers, frock, and canvas shoes. The hands and forearms are scrubbed in soapsuds with constant rinsing for ten minutes by the watch, great care being taken to clean the finger- nails ; then they are washed in a saturated solution of per- manganate of potassium until of a dark mahogany color ; then, finally, the permanganate stain is removed by per- oxide of hydrogen or oxalic acid. If at any time after this the fingers touch anything or any part of the patient that is not aseptic, the hands are washed in running water with brush and soap. When the patient is etherized, the bladder is emptied and the vagina and vulva are vigor- ously washed with soap and water. Dr. W. L. Burrage's method of cleaning the vagina is a good one. He takes a piece of moderately soft soap as large as a French prune, introduces it with a little water into the vagina, and with the index and middle fingers of the right hand he thor- oughly lathers the whole vaginal mucous membrane. After washing out the vagina and cleansing the vulva with a hot 1 to 1,000 solution of corrosive sublimate the uterus is put in extreme anteversion. If adhesions are present they are overcome as mentioned above. As it has been my experience, backed up by that of the pathologist, to find chronic hyperplastic endometritis in every case where an Alexander-Adams operation was called for, I dilate the cervix, thoroughly curette the endometrium with the sharp curette, and pack the uterine cavity with sterilized gauze, on which iodoform or dermatol, as rec- ommended by Burrage, has been freely dusted. The gauze is allowed to stay in the uterus from a week to ten days. By using Burrage's uterine speculum no trouble is experienced in introducing the gauze. All being ready for the Alexander-Adams, the corrosive sublimate pad is removed, a Kelley pad is put under the patient, and clean rubber sheets are put above and below to protect the patient and conduct the water into the pad. Between the thighs a Ferguson speculum is placed to conduct all wash water into the pad. The abdomen (SUPPLEMENT.) is thoroughly scrubbed with soapsuds and then washed off with hot water that has been boiled and filtered. From the time the first incision is made until the wound is closed the field of operation is very frequently flooded with hot water that has been boiled and filtered. The sterilizer is now brought into the operating-room, and hot steaming towels are placed around the field of operation. The instruments are taken out on trays, which are put in pans filled with hot water that has been boiled and fil- tered. The sponges, made of folded gauze, are taken from the sterilizer and put in covered pails containing hot water that has been boiled and filtered. Operation.-Two, and only two, landmarks need be kept in mind. One only is really necessary, but as some operators get into the peritoneal cavity without apparently knowing the fact until they are there, the second land- mark, the observance of which will surely keep them out, is given. First of all, locate the pubic spine. This is usually done with ease, and it is only exceptionally that the spine is not pointed enough to be readily rec- ognized. When, either through fat in the abdominftl walls or lack of development, the spine cannot be located with entire satisfaction, make an incision an inch long through the skin and subjacent tissues over where you think the spine should be, and the definite location of it will then be settled by the finger. I am thus parti- cular about this because I have never seen anybody fail to find the ligaments when they kept the finger and their mind's eye on the pubic spine. The pubic spine located, cut down at once to the aponeurosis of the external oblique muscle (see that the lower end of the incision stops just over the pubic spine). This white glistening tissue cannot be missed. This is the second landmark, and if the operator keeps above this he will never unin- tentionally enter the abdominal cavity. Stop all bleeding as you go along, so that the aponeurosis may be kept white and clean. Use as few pressure-forceps as pos- sible, as union by first intention is desirable. Clean up the aponeurosis for an inch and a half from the pubic spine, and then with the index finger on the spine the ligament will be found without any difficulty. Some- times the external ring can be seen, usually it can be felt ; now and then the intercolumnar fascia is so strong that no ring can be seen or felt. In this latter case if the fascia is cut through just in front of the pubic spine, a mass of fat will protrude, and this is the guide to the ligament. Grasp this fat with the tissue about it, unless the ligament is seen, in which case grasp the liga- ment, and tease it out of the ring, or slit up the aponeu- rosis a little way and tease the fat and tissue out of the canal. If one is careful to get hold of all the fat and tissue, the ligament will soon be seen after a little trac- tion on these tissues. Separate the nerve from the liga- ment, being careful not to injure it by rough handling or by sewing it to the aponeurosis when fastening the liga- ments. Draw out both ligaments until the uterus, by vaginal examination, is found to be in the desired posi- tion, then fasten them to the pillars of the ring or to the aponeurosis, if the canal has been slit up. (I have never seen the ligaments fastened to the pillars of the ring.) The slack of the ligament may be cut off near where it is fastened and entirely removed, or it may be folded into the wound and fastened there by the sutures that close the incision, or by separate sutures, or it may be tied in a hard knot to the slack of the opposite side, and both buried and sewed into the incisions that have been prolonged so as to meet. I prefer the second method, if the ligaments have not been crushed or bruised in getting them out. If I fear that their vitality has been impaired, the first method is employed. Attention to cleanliness should be the same as if coeliotomy was being done, as it may be necessary to free the ligaments from adhesions throughout the whole length of the canals, and the peri- toneal cavity may be opened ; then, too, healing by first intention is the desideratum. If a ligament should break, slit up the aponeurosis to the point where the ligament dips down to enter the internal ring, and at the internal ring search for it. If it cannot be found at the internal ring it will be necessary to do a coeliotomy to secure it. 30 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Alexander-A dams Operation. Catgut, silk, and silkworm-gut may be used in suturing the ligaments. Silk, silkworm-gut, and wire may be used in closing the incisions. Wherever ligatures are needed I prefer silkworm-gut for three reasons : 1st, It ■can be made perfectly aseptic ; 2d, it is never absorbed ; 41d, it is less irritating than any other suture material. Whatever kind of suture material is used, four sutures .are needed to securely fasten each ligament, two on each side. These sutures are cut short and buried. Care should be exercised not to tie these ligament-sutures too tight, neither should they catch up too much of the liga- ment for fear of strangulation with following suppura- tion. Preparation of Ligatures.-Silk is soaked in ether for forty-eight hours, and it is then boiled for two hours in a 1 to 20 carbolic acid solution, or for the same length of time in filtered water. It is kept in absolute alcohol. Only as much as will be used at any one operation is taken from the alcohol and sterilized. If any of this is left over after having been handled, it is boiled again for two hours before being used. Catgut is soaked in ether for several days in the coils as it is bought. Then it is wound on glass buttons, each button taking one coil. It is then boiled in alcohol in a jar with the cover on, in an Arnold sterilizer, for one hour on three consecutive days. It is then removed from this alcohol with sterilized forceps and put in abso- lute alcohol. Only one button is taken from the alcohol for an Alexander-Adams. This is again sterilized by boiling in alcohol in an Arnold sterilizer for half an hour previous to the operation. Silkworm-gut is first thoroughly boiled for two hours in filtered water. Then it is put in absolute alcohol. Ten or twelve strands are put with the instruments in the sterilizer half an hour before the operation. After closing the incisions, powdered boric acid and iodoform are thickly dusted over both lines and kept in place by square pieces of baked gauze secured in position by corrosive collodion. Over this the powdered boric acid and iodoform are thickly dusted. Then a thick pad of baked gauze is placed on the lower abdomen and pubes. The whole is kept in place by an abdominal binder, or adhesive plaster, and perineal straps. The patient is kept in bed two weeks. At the end of a week the sutures are removed, and the lines of incision are cov- ered with powdered boric acid and iodoform, and sealed over with baked gauze held in place by corrosive collo- dion. If possible the catheter is dispensed with and the nurse is instructed to see that the patient passes her water every four or live hours. The moment any bladder trouble shows itself, saccharine, boric acid, and benzoate of ammonia are given. The bowels are moved on the third day by a large dose of magnesia, assisted by enema, so as to avoid straining. After this the bowels are moved every day. Slop diet is given until after the third day. If suppuration appears, a large opening is at once made down to the ligament ; at times it is necessary to open up the whole incision. Then poultices are applied for twenty-four to thirty-six hours, then the suppurating cavity is cleaned two or three times a day with peroxide of hydrogen and filled with powdered dermatol, aristol, or iodoform. The occurrence of suppuration does not prolong the patient's stay in bed. The following cases were operated on at the St. Eliza- beth's and Carney Hospitals, Boston, during the two years following December, 1889 : Tabulated Statement of Cases on which the Alexander-Adams Operation was Performed in the St. Elizabeth's and Carney Hos- pitals, Boston (1889-1891). 1 Number. Date. Name. Age. Married. Single. Children. Abortions. Indication for operation. Operator. Other opera- tions. Relief of symptoms. Results. Remarks. 1 Dec., '89... A. H. 22 S. Retroversion. J. Dilated ; cu- retted. Yes. Perfect. 2 Jan., '90... M. C. 24 S. Retroversion ; prolapsed ova- ries. C. Perfect. 3 Feb., '90... R. N. 25 M. Retroversion. J. Cervix. Yes. Perfect. Pessary for a few months. 4 April, '90 .. H. C. 27 M. 2 Retroflexion; prolapsed ova- ries. J. Cervix; peri- neum. Yes. Perfect. 5 May, '90. .. K. D. 18 s. Retroversion with adhesions. J. No. Perfect. Pessary for a few months. 6 May, '90... C. F. 29 M. 1 Retroversion with adhesions. J. Cervix. Yes. Perfect. Pessary for a few months. Y J une, '90... M. I). 21 8. Retroversion with adhesions. J. Curetted. Died of acute sepsis. 8 June, '90... L. K. 38 W. 2 1 Retroversion with adhesions. J. Yes. Perfect. Had pneumonia. 9 Sept., '90 .. W. 1'. 30 M. 2 1 Retroversion. J. Cervix. Yes. Perfect. 1(1 Nov., '90... M. T. 24 M. Prolapse in second degree. K. Yes. Perfect. 11 Nov., '90... R. A. • • Retroversion with adhesions. J. Dig. on left side not found; operation abandoned. 12 Dec., '90. .. N. W. 24 S. Retroversion with adhesions. J. Perfect. 13 Dec., '90. .. B. C. 40 S. Retroversion. J. Perfect. 14 Dec., '90... J. C. 25 s. 1 Retroversion with adhesions. J. Cervix. No. Perfect. Abscess on both sides. 15 Dec., '90 .. F. D. 23 s. Retroversion. J. Curetted. Yes. Perfect. 16 Jan., '91... T. R. 21 8. Retroversion with adhesions. J. Curetted. Yes. Perfect. 17 Jan., '91... M. G. 27 M. Retroversion with adhesions. J. Curetted. Yes. Perfect. Abscess on both sides ; Confined at terra. 18 Jan,, '91... F. B. 28 W. 2 Retroversion. J. Curetted; cer- Yes. Perfect. Pregnant in a few months; aborted. 19 Jan., '91... F. B. 34 W. 5 Retroversion. J. Curetted: cer- vix. Yes. Perfect. Abscess on right side. 2(1 Jan., '91... E. L. 26 S. Retroversion. J. Curetted. Perfect. Abscess on both sides. 21 Feb., '91... A. C. 25 S. Retroversion : prolapsed ova- ries. J. Curetted. Perfect. 22 Feb.. '91... K. C. 28 M. Retroversion. J. Cervix. Perfect. Abscess on right side. 23 March, '91. E. 1'. 30 8. Retroversion; fibroid in pos- terior wall. J. Yes. Perfect. Fibroid in posterior uter- ine wall. 24 March, '91. 8. L. 32 M. 2 2 Retroversion with adhesions. C. Cervix ; peri- neum. Perfect. 25 April. '91... T. M. 28 M. Retroversion. c. Cervix. Perfect. 26 April, '91 .. N. D. 24 8. Retroversion with adhesions. c. Yes. Perfect. Abscess on right side. 27 April, '91 .. J. T. 41 S. Retroversion ; multiple fibroids J. Curetted. No. Not perfect. Uterus retrovei ted. 2b April, '91 .. M. B. 31 S. Retroversion with adhesions. J. Curetted. Yes. Perfect. 29 April, '91 .. H s Retroversion. J. Curetting. Yes. Perfect. Full history of case lost. 30 April, '91 .. M. B. 31 S. Retroversion with adhesions. J. Curetted. Yes. Perfect. 31 April, '91 .. A. M. 26 s. Retroversion with adhesions. c. Curetting. Not perfect. 32 April, '91 .. M. E, 46 M. 4 2 Retroversion with adhesions. J. Perineum. Died of pneumonia on the eighth day. 33 May, '91 ... A. J. 30 M. 1 8 Retroversion with adhesions; left ovary prolapsed. c. Perfect. 34 May, '91 ... M. D. 35 s. Retroversion with adhesions. C. Perfect. 35 May, '91 ... A. F. 21 M. •• Retroflexion with adhesions; ovaries prolapsed. J. Curetted. Yes. Perfect. Delivered at term. 31 Alexander-A dams Alvelos. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Tabulated Statement of Cases on which the Alexander-Adams Operation was Performed.-{Continued.) Number. Date. Name. Age. Married. Single. Children. Abortions. Indication for operation. Operator. Other opera- tions. Relief of symptoms. Results. Remarks. 36 June, '91.. M. K. 32 S. Retroversion with adhesions. K. Perfect. 37 June, "91 .. E. H. 31 M. Retroversion with adhesions. K. Perfect. 38 June, '91 .. M. B. 23 S. Retroversion with adhesions ; left ovary prolapsed J. Curetted. Perfect. 39 July, '91... II. H. 25 s. Retroversion with adhesions. J. Curetted. Perfect. Abscess on right side. 40 Aug., '91... P. M. Retroversion with adhesions ; prolapsed right ovarv. Bl. Perfect. 41 Sept., '91 „. K.W. 27 s. Retroversion. Bl. Curetted. Perfect. 42 Sept., '91 .. M. D. 25 s. Retroversion ; ovaries p r o - lapsed. J. Perfect 43 Oct., '91 ... J. D. 30 M. 5 Retroversion. J. Cystocele. Yes. Perfect. 44 Oct., '91 ... F. M. 33 M. 1 Retroversion with adhesions. K. Curetted. Not perfect. 45 Oct., '91 ... M. C. 31 M. 2 Retroversion with adhesions. K. Perfect. Abscess on both sides. 46 Oct., '91 ... M. T. 21 s. Retroversion ; ovaries p r o - lapsed. C. Curetted. Perfect. 47 Nov., '91... A. S. 35 s. Retroversion with adhesions. K. Curetted. Perfect, Abscess on right side. 48 Nov., '91... M. B. 25 M. Retroversion ; prolapsed ova- ries. K. Curetted; cer- vix. Perf^Qt. 49 Dec., '91... A. M. 30 s. Retroversion. c. Curetted. Perfect. Acute articular rheuma- tism. 50 Jan., '92.. . N. C. 23 M. •• Retroversion ; left ovary pro- lapsed. c. Perfect. Abscess on right side. 51 Jan., '92... E. O. 32 M. Retroversion ; left ovary and tube prolapsed. J. Cur. tted. Yes. Perfect. 52 Jan., '92... L. M. 23 S. Retroversion. c. Curetted. Perfect. 53 Jan.. '92. .. M. C. 38 s. Retroversion with prolapse. c. Curetted. Perfect. Abscess on right side. 54 Jan., '92... M.M 34 M. Retroversion with adhesions. J. Curetted. Perfect. 55 Jan., '92... J. O. 23 s. Retroflexion with adhesions. J. Curetted. Not perfect. 56 Jan.. '92... A. S. 30 s. Retroversion with adhesions. c. Curetted. Perfect. 57 Feb., '92... L. W. 42 M. Retroversion with adhesions; ovaries prolapsed. J. Curetted. Perfect. 58 59 Feb.. '92... Feb., '92... M. F. J. H. 40 29 M. M. 2 3 Retroversion with adhesions. Retroversion with adhesions. J. c. Curetted. Curetted. Perfect. Perfect. 60 Feb., '92... L. S. 19 s. Retroversion with adhesions ; double inguinal hernia. c. Curetted. Perfect. Alexander-Adams for the radical cure of the her- nia. 61 Feb., '92 . . J. D. 33 M. Retroversion with adhesions. J. Curetted. Perfect. 62 March, '92 A. M 28 M. 2 Retroversion. J Curetted. No. Perfect. 63 March, '92. J. D. 26 M. Retroversion with adhesions. J. Curetted. Yes. Not perfect. Has had two attacks of gonorrhoeal peritonitis. 64 March, '92. E. S. 29 .. s. Retroversion with adhesions. J. Curetted. Yes. Perfect. Abscess on both sides. 65 March, '92. M. H 30 M. .. Retroversion. B. Curetted. Not perfect. Abscess on left side. 66 March, '92. K. 0. 32 M. 1 Retroversion ; right ovary pro- lapsed. B. Curetted. Perfect. Abscess on both sides. 67 March, '92. J. H. 22 s. Retroversion. J. Curetted. Yes. Perfect. Abscess on both sides. 68 April, '92 .. H. S. 34 M. 1 Retroversion. B. Curetted; perineurti. .... Perfect. Abscess on both sides. 69 April, '92 .. A. D. 27 s. Retroversion with adhesions. K. Curetted. Not perfect. 70 April. '92 .. M. M. 24 M. Retroversion with adhesions. J. Curetted. Yes. Not perfect. Abscess on left side; wear- ing pessary. 71 May, '92 ... L. B. 24 M. 1 Retroversion. J. Curetted; perineum. Yes. Perfect. 72 May, '92 ... A. D. 41 M. 3 1 Retroversion with adhesions. J. Curetted. Perfect. Abscess on both sides; both ligaments broke and retracted. 73 June, '92 .. N. Q. 25 s. Retroversion with adhesions. J. Curetted. Perfect. Abscess on both sides. 74 June, '92.. A. L. 20 s. Retroversion with adhesions. B. Curetted. Perfect. Abscess on both sides. 75 Jun^, '92 .. A. C. 32 s. Retroversion. B. Curetted. Perfect. Abscess on left side. 76 Julv, '92... M. S. 23 s. Retroversion. B. Curetted. Perfect. Abscess on both sides. 77 July, '92... M. N. 24 s. Retroversion. J. Curetted. Perfect. Abscess on both sides. 78 Aug., '92 .. M. C. 26 M. Retroversion. Bl. Curetted. Perfect. 79 Aug., '92... M. K. 23 s. Retroversion with adhesions. B. Curetted. Perfect. Abscess on both sides. 80 Aug., '92... M. 0. 23 .. s. Retroversion with adhesions. B. Curetted. Not perfect. 81 Aug., '92... K. S. 30 M. Retroversion. B. Curetted. Perfect. Abscess on both sides. 82 Sept., '92 . M. K. 20 s. Retroversion. S. Curetted. Not perfect. S3 Sept., '92 .. M. M. 22 M. Retroversion. K. Perfect. 84 Oct., '92 ... F. M. 30 s. Retroversion with adhesions; ovaries prolapsed. J. Curetted. Not perfect. Left ligament broke and was lost. 85 Feb., '90 . E. K. 30 M. 1 4 Retroversion ; left ovary pro- lapsed . J. Cervix. Perfect. Delivered at term, subse- quently. 86 March. '90. R. G. 23 M. Retroversion with adhesions. J. Perfect. Abscess on left side. 87 April. '90 .. O. G. 42 M. .. li 2 Retroversion. J. Cervix. Perfect. Abscess on left side. 88 May, '90... E. H. 35 M. 4 1 Retroversion with adhesions. J. Cervix; peri- neum. Perfect. 89 May, '90... M.M. 29 M. Retroversion ; ovaries p r o - lapsed. J. Dilated. Yes. Perfect. Abscess on left side. 90 May, '90... M. R. 35 s. Retroflexion; left ovary pro- lapsed. J. Perfect. 91 July. '90. .. K. G. 24 M. Retroversion with adhesions. J. Perfect. 92 Sept., '90 .. C. B. 35 M. 1 Retroversion with adhesions; left ovary prolapsed. J. Cervix. Yes. Perfect. 93 Sept., 90 .. C. K. 34 M. Retroversion. J. Perfect. 94 April, '91 .. M. S. 26 s. Retroversion with adhesions. J. Dilated. .... Perfect. Abscess on right side. 95 May. '91... M. B. 31 s. Retroversion with adhesions. S. Perfect. 96 May, '91.. . M. S. 38 M. 3 2 Retroversion with adhesions. S. Not perfect. 97 July, '91... A. C. 32 M. 1 Retroversion. J. Yes. Perfect. Tired of wearing a pessary. 98 July, '91. . E. G. 39 M. 2 Retroversion. J. Curetted. Yes. Perfect. 99 Aug., '91... L. G. 31 M. 5 Retroversion. J. Cervix : peri- neum ; hae- morrhoids. Yes. Perfect. 100 Aug., '91... Sept. '91 .. J. F. 40 s. Retroversion with adhesions. J. Curetted. No. Perfect. 101 E. M. 28 s. Retroversion with adhesions. J. Yes. Perfect. Abscess on right side. 102 Oct., '91 ... B. O. 35 M. * 5 Retroversion ; left ovary pro- lapsed. J. Perfect. 32 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Alexander-A damn Alveios. Tabulated Statement of Cases on which the Alexander-Adams Operation was Performed.-(Continued.) 1 Number. Date. i A Age. Married. Single. Children. Abortions. Indication for operation. Operator. Other opera- tions. Relief of symptoms. Results. Remarks. 103 Nov., '91... N. S. 26 8. Retroversion with adhesions. J. Curetted. Yes. Perfect. Ligament on right side broke and was lost. 104 Nov., '91... M. It. 20 M. 1 Retroversion with adhesions. J- Yes. Perfect. Ligament on left side broke and was lost. 105 Nov., '91 .. E. S. 19 M. Retroversion with adhesions; left ovary prolapsed. J. Curetted. Yes. Perfect. Abscess on both sides. 106 Nov., '91... K. O. 33 M. 2 .. Retroflexion ; right ovary pro- lapsed. J. Curetted. Yes. Perfect. Pneumonia. 107 Nov., '91... B. K. 27 M. Retroversion. J. Cervix; peri- neum. Yes. Perfect. Pneumonia. 108 Nov., '91... N. D. 21 .. S. Retroversion with adhesions. J. Curetted. Perfect. 109 Dec., '91. .. N. H. 27 M. Retroversion. J. Curetted. Perfect. 110 Dec., '91... K. G. 8. Retroflexion ; ovaries p r o - lapsed. J. Curetted. .... Not perfect. 111 Dec., '91... C. L. 34 8. Retroversion, J. Curetted. Yes. Perfect. 112 Dec., '91... M.W. 44 M. 4 2 Retroversion. J. Curetted. Perfect. 113 Jan., '92... M. P. 29 •• Retroversion. Yes. Perfect. Fibroid on posterior uter- ine wall. 114 Jan., '92... M. II. 41 M. 1 •• Retroversion ; ovaries p r o - lapsed. J- Curetted. Yes. Perfect. 115 Jan., '92... M C. 30 M. Retroversion with adhesions ; salpingitis. J' Curetted. No. Perfect. Abscess on left side. 116 Jan., '92... S. L. 43 M. 7 Retroversion. J. No. Perfect. 117 Feb., '92... A. P. 35 s. Retroversion. s. Perfect. 118 Feb., '92 .. A. W. 23 M. .. 1 Retroversion with adhesions. 8. Perfect. 119 Feb., '92.. . K. M. 33 8. Retroversion ; left ovary pro- lapsed. J. Curetted. Yes. Perfect. 120 March, '92. M. B. 35 M. .. Retroverted. 8. Perfect. Abscess on left side. 121 March, '92. H. C. 27 M •• Retroversions with adhesions. J. Curetted. Yes. Not at all a success. Abscess on both sides 122 April, '92 .. K. C. 19 S. Retroversion with adhesions. S. Perfect. 123 April, '92 .. M. S. 36 M. 5 2 Retroversion. s. Curetted. Perfect. Abscess on left side. 124 April, '92 .. M. K. 29 M. Retroversion. s. Perfect. 125 April, '92 .. M. D. 42 M. 3 6 Retroversion. s. Cervix; peri- neum. Perfect. 126 April. '92 .. A. F. 28 M. Retroversion with adhesions. s. ...... .... Perfect. Abscess on right side. 127 April, '92 .. M. B. 25 M. 1 Retroversion with adhesions; left ovary prolapsed. J. Cervix. Yes. Perfect. 128 May, '92... M. D. 33 M. 1 1 Retroversion with adhesions ; left ovary prolapsed. J. Curetted. Perfect. 129 May, '92... S. B. 30 M. 1 1 Retroversion ; left ovary pro- lapsed. J. Cervix. Yes. Perfect. . 130 May, '92... E. B. 56 M. 3 Procidentia. J. Curetted. Yes. Perfect. Abscess on both sides. 131 May, '92... S. O. 34 M. Retroversion. J. Curetted. Yes. Perfect. 132 May, '92... F. S. 27 M. Retroversion. s. Curetted. Perfect. Abscess on left side. 133 May, '92... A. M. 39 M. Retroversion with adhesions. K. Not perfect. 134 May, '92... C. M. 32 M. 2 3 Retroversion ; left ovary pro- lapsed. J. Curetted. Not perfect. Pessary now keeps uterus in place. 135 May, '92... M. B. 27 8. Retroversion ; ovaries p r o - lapsed. K. .... Not perfect. Abscess on left side. 136 May, '92... E. K. 29 8. Retroversion; left ovarj' pro- lapsed. J. Curetted. Yes. Perfect. 137 Mav, '92... J. H. 27 S. Retroversions with adhesions. K Perfect. 138 May, '92... I. M. 19 S. Retroversion ; left ovary pro- lapsed. B. Perfect. Abscess on left side. 139 June, '92... M. C. 26 M. •• Retroversion; left ovary pro- lapsed. J. Curetted. Yes. Perfect. Pregnant. 140 June, '92... L. P. 32 M. 3 Retroversion. J. Curetted. Yes. Perfect. Fibroid in post - uterine wall. 141 June, '92.. . J. M. 27 M. 2 2 Retroversion. J. Cervix. Yes. Perfect. 142 Aug., '92 .. J. 8.. 27 M. Retroversion. B. Curetted. Not perfect. Wearing pessary. 143 Sept.. '92 .. L. C. 30 8. .. Retroversion with adhesions. J. Curetted. Not perfect. Abscess on right side. 144 Sept., '92 .. N. S. 49 M. 3 Procidentia, five years' stand- ing. J. Perineum. Yes. Perfect. 145 Oct., '92... H.W. 47 M. 5 1 Procidentia, one year. * Cervix; peri- neum. Perfect. 146 Oct., '92... A. B. 49 M. 2 Procidentia, two years. J. Perineum. Perfect. 147 Oct., '92... F. G. 42 M. 10 » Retroversion. s. Curetted. Perfect. Abscess on both sides. 148 Oct., '92... O. N. 40 M. 7 1 Procidentia, six months ; left inguinal hernia. Perfect. Radical cure of hernia by the Alexander. 149 Oct., '92... K. D. 34 M. 3 Retroversion with adhesions. J. Not perfect. Both ligaments broke and were lost. 150 Oct., '92... L. W. 32 M. 2 Retroversion with adhesions. J. Curetted; cer- vix ; perine- um. Acute pleurisy with ef- fusion; phthisis. 151 Oct., '92... A. W. 20 S. Retroversion with adhesions ; ovaries prolapsed. J. Curetted. Not perfect. 152 Oct, '92... G. K. 14 8. •• Retroversion with adhesions ; ovaries prolapsed. J. Curetted. Perfect. ALVELOS. The milky, resinous juice of Euphorbia heterodoxa, Muller, belonging to the order Euphorbiacese, indigenous to Brazil. It is obtained by expression, is yellowish-white, of syrupy consistence, resembling vase- line, insoluble in water and alcohol, soluble in ether, miscible with fixed oils. It possesses powerful escharotic properties, together with a solvent action on organic tissues. It combines the effects of a caustic with that of papaine. It is rec- ommended for the treatment of syphilitic and cancerous growths. The part is painted with the drug once a day ; before the application the part is washed with carbolic acid or other antiseptic solution. The operation is repeated until the disease is removed. It is said the purity of the drug may be known by its imparting a pronounced color and odor to the urine due to its absorption. This effect has to be watched during its use as it exerts a decided irri- tant action in the renal tissue. Beaumont Small. F. IF. Johnson. 33 Amputation. AmeMtlieties. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. AMPUTATION AT THE HIP JOINT. The mortality which until recently followed amputation at the hip- joint rendered this operation the most formidable in surgery. Within the last ten years this mortality has been greatly reduced. No great war has occurred within these years, so that it is difficult to estimate the present death-rate of traumatic cases. The reduction for such cases ought, however, to be proportionate with that of amputation for disease. For this latter class of cases, a dozen years ago, the mortality was estimated at over forty per cent. Now it varies from fifteen to twenty per cent. Formerly it was only on comparatively robust patients that the operation was performed ; now it can be done on delicate, sickly children with a fair chance of a successful issue. The reasons for these better results are, 1st, the antiseptic treatment of the wound ; and 2d, the improved methods for the control of hemorrhage. The first cause has brought about an immense improvement in all operations, and the improvement is in almost direct proportion to the extent of the wound, and there- fore the difference between the present results and those of the pre-antiseptic times is more marked in this opera- tion than perhaps in any other. The second cause has very much added to the safety of the operation. It can- not be said that any one method is pre-eminent for the control of hemorrhage, but there are several admirable plans for the arrest of bleeding, which, in different hands, give almost equally good results. Shock continues to be the source of the greatest danger, but this has been very much lessened since the loss of blood has been diminished. Follow- ing the removal of so large a part of the human frame, there must always result consider- able shock. In this connection it is well to correct an errone- ous statement which has been handed down from text-book to text-book for scores of years. It is very commonly stated that amputation at the hip-joint re- moves about one-fourth of the body. This is incorrect. Re- cent observations estimate the loss of tissue as equal to about one-tenth or one-twelfth of the weight of the entire body. Methods. More than forty- five methods of amputation at this point have been described. Many of them are en- tirely obsolete. A very judicious choice has been made of the best methods in the original article on this subject, in Vol. I. Of the plans there described, several continue to be used with great success. The shape and position of the flaps are of less importance than the means for control of hemorrhage. In many patients the flaps must be adapted to each case, and especially is this true in amputations for injury. Some modification of the method known as. Furneaux Jordan's is perhaps as gen- erally useful as any other. The flaps are formed as fol- lows : the soft parts are drawn upward with the left hand and a circular incision is made through skin and cellular tissue around the middle third of the thigh. The cuff of skin is raised for about two and a half inches, and this flap being drawn strongly upward, the muscles are severed by circular sweeps of the knife down to the bone. The vessels are then secured. A second incision is made along the outer side of the thigh, starting from the circular wound and ending midway between the iliac crest and the top of the great trochanter. This incision divides everything down to the bone. The soft parts are then peeled off the femur, and the head of the bone dis- articulated. If the case is not suitable for this method an equally good stump can be obtained by one of the other methods. (SUPPLEMENT.) Means of Arresting Hemorrhage.-While several new devices for this purpose have been introduced, yet some of the older methods still give very satisfactory results ; of these may be mentioned control by means of the elastic bandage, according to the plan of Jordan Lloyd. In this method the Esmarch bandage is first applied, as far up the thigh as the tissues are healthy; a piece of strong rubber bandage is then passed between the thigh and trunk, its centre resting between the anus and tuberosity of ischium. A roller bandage is placed over the external iliac artery. The ends of the rubber band- age are drawn strongly upward and outward, one in front of the groin, and the other across the buttock, to a point above the crest of the ilium. They should be pulled until all pulsation in the femoral artery has ceased. The anterior band compresses by means of the roller bandage the external iliac, and the posterior the branches of the internal iliac artery. The ends of the bandage can either be held by an assistant, or crossed over- to the opposite side and tied below the crest of the ilium. Another plan, which in the hands of its inventor, and of others, gives excellent results, is Davy's rectal lever. Ten cases have recently been reported treated by Davy, with eight recoveries. Trendelenburg's method of passing a steel rod between the vessels and femur, and Fig. 15. compressing the artery by a rubber cord, is also a very serviceable device. The most satisfactory method is the one recently proposed by Dr. Wyeth. The patient is placed with the hip well over the end of the table, and an Esmarch bandage applied. With the bandage still in position, his needles are inserted as follows: " Two steel mattress-needles, three-sixteenths of an inch in di- ameter and a foot long, are used. The point of one is inserted an inch and a half below the anterior superior spine of the ilium and slightly to the inner side of this prominence, and is made to traverse the muscles and deep fascia, passing about half-way between the great trochanter and the iliac spine, external to the neck of the femur and through the substance of the tensor vaginae femoris, coming out just back of the trochanter. About four inches of the needle should be concealed by the tis- sues. The point of the second needle is entered an inch below the level of the crotch, internally to the saphenous opening, and passing through the adductors, comes out about an inch and a half in front of the tuber ischii. No vessels are endangered by these needles. The points are protected by corks to prevent injuries to the operator's hands. A piece of strong white rubber tube, half an inch in diameter, and long enough when tightened in position to go five or six times around the thigh, is now wound very tightly around and above the fixation-needles, and 34 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Amputation. A n aesthetics. tied." The Esmarch bandage is then removed, and if the operation is to be completed according to Dr. Wyeth's plan, a circular incision is made, the skin-flap is turned up, the muscles are divided at the lesser tro- chanter, and the bone is sawn through. All vessels are then tied. The remaining portion of the femur is then removed by division of the attachments of the muscles. It is not, however, necessary to complete the operation in this manner. In one of my cases Wyeth's pins were ap- plied and the flaps were formed according to Furneaux Jordan's method, and the bone disarticulated while the pins and tubing were still in position, and before a vessel had been secured. The arrest of hemorrhage was per- fect, and not a drop of blood escaped from the upper ends of the cut vessels. I should add that in this case a roller bandage was placed over the iliac artery, but I do not know that it was necessary, as in another case no such compression was used, and no leakage occurred from the vessels. In both patients the complete arrest of hemorrhage was highly satisfactory, as has over and over again been testified to by the inventor of this ad- mirable method, and by others who have made use of it. taste and an aromatic odor somewhat resembling camphor. It is soluble in eight parts of water and in alcohol, ether, glycerine, and oils ; specific gravity .815. Recommended in 1888 by Professors Jolly and von Mering for its soporific properties. It is said to occupy a place between chloral and paraldehyde, two parts equalling one of the former and three of the latter. Its advantage over chloral is that it has no depressing effect on the heart; its smaller dose and less disagreeable odor make it preferable to paraldehyde in many cases. It produces a calm refresh- ing sleep, which lasts for six or eight hours, from which the patient awakens without any bad symptoms. Il is used in insomnia due to nervousness, debility, mental excitement, and delirium tremens, and in fevers. It has not proved of much use when the sleeplessness is due to pain. It does not cause headache, nausea, or deranged digestion. In very large doses it produces a lowered temperature, shallow respiration, feeble pulse, loss of re- flexes, paralysis of extremities. It is given in doses of thirty to forty-five minims. Its taste and odor often prove objectionable, and may be disguised by combining with extract of licorice, or some aromatic. It may also be used as an enema with mucil- age of acacia, in doses of forty to ninety minims. Beaumont Small. ANESTHETICS. The period ■which has elapsed since the pub- lication of the first volume of this work shows no addition of value to our agents for the pro- duction of general anaesthesia, no change in the principles which govern the process, nor has there been any decided change in the relative standing of the agents employed. Yet it has been a period of marked activity. The leading societies of the world have debated the subject, many papers of value have been pub- lished, while experimental study has been prosecuted to a degree greater than ever before. Few conclusions, however, have been reached which are universally accepted. On the contrary, there is wide diversity of views upon some of the most important points. Even experimental in- vestigators have not agreed, and practical men have reached con- clusions diametrically opposite. The major part of the work done upon this subject during the last decade has had its origin in the contest between chloro- form and ether. This contest, which began in the early years of anaesthesia, still con- tinues, and without promise of early settlement. The advantages of each agent have been presented and urged sometimes with more warmth than judgment, and in more of a partisan than a scientific spirit. It needs but a glance through the literature of the period to show that this contest has been the inspiration of the work done, and that a record of the efforts of the advocates of the two great anaesthetics is a record of the progress of the subject. A strong plea for chloroform has been made by Dr. Lombe Atthill, of Dublin.1 At a debate held by the Medico-Chirurgical Society of Glasgow the weight of testimony was altogether on the side of this agent, both in the number of speakers and the amount of experience. Several men of high repute spoke in its favor. Dr. Hartley, of Leeds, stood almost alone as an advocate of ether.2 In this country Dr. Chisholm has advocated chloroform as the best anaesthetic,3 and Dr. Farrington has made a plea for it.4 The claims of ether have been presented in valuable papers by Comte, by Julliard,6 and Fig. 13. The accompanying diagrams, inserted with Dr. Wyeth's permission, illustrate the method of the introduction of the pins. In one of my cases, a very large man, I found that needles fifteen inches long were more serviceable than would have been the shorter ones.* Whatever method be adopted, the wound should be closed by suture and two or more drainage-tubes inserted. The entire operation should be carried out with the strictest antiseptic precautions. It is important that the patient should be enveloped in flannel, and that the room should be thoroughly warm. It is also useful, in weak patients, to adopt a modified Trendelenburg's position, with the pelvis elevated and the head low. Andrew J. McCosh. AMYLENE HYDRATE {Dimethylethyl carbinol). This is a clear, colorless, thin, neutral liquid, with a burning * The needles can be obtained from any large upholstering establish- ment. 35 A n aesthetics. Aniesthetics. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. by Fueter, of Switzerland,6 and by Dr. Teale in the ad- dress on surgery before the British Medical Association in 1889, by Silex, of the Augenklinik of Berlin, based on two thousand five hundred administrations per an- num,1 and by Ormsby.8 In this country ether has been advocated by Knapp,4 an excellent and much needed paper on administration has been published by Shrady,9 and one on the time and amount of ether required to produce anaesthesia by Lovett.10 Wood's address before the International Congress at Berlin, 1890, must be also considered as a plea for this agent. The use of various mixtures of anaesthetics may be said to be on the increase. The administration of ni- trous oxide first and then ether is confined to hospital practice from the necessity for complicated apparatus. It is resorted to a good deal in London. The plan of administering ether first and chloroform afterward, or vice versa, is followed to some extent in Europe, but statistics are wanting, as they also are as to several mixt- ures much used in Vienna. The A. C. E. mixture, which consists of alcohol one part, chloroform two parts, ether three parts, by measure, seems alone to deserve consid- eration. This preparation has certainly advanced very much in favor during the past few years. The increas- ing number of deaths from chloroform in England has excited alarm, and the A. C. E. has been chosen by those who would avoid the dangers of chloroform on one hand and the practical disadvantages of ether on the other. As preferable to chloroform, this mixture has had the powerful advocacy of the London Lancet, its merits have been recognized by Eastes,1" and the more recent authorities advise its use under many circum- stances, as do Buxton,11 and Hewitt, the author of the chapter on anaesthetics in " Treve's Operative Surgery." The experience of a lifetime with this mixture has been presented in a paper before the Ohio State Medical So- ciety,12 and the debate elicited upon it showed a very considerable use of it through at least one section of this country. The attempt to determine the relative safety or danger of the different anaesthetics by statistics has continued, but without greater success than in the past. The factors cannot all be given. All deaths are not reported. In a single city the coroner investigated fifteen deaths from ether, only three of which had been reported.13 No state- ment of the deaths from an anaesthetic in any city or country is of value in determining this question unless the number of administrations are also given. Again, the irregularity of occurrence of accident renders an im- mense array of numbers necessary. Thus, in the debate at Glasgow, while several speakers testified to many thou- sands of safe administrations of chloroform, one of the participants had met with four deaths. Bardeleben had no death in 30,000 administrations, then in one year he had four.14 Kollock had two deaths from ether in giving it 200 times.'6 Richardson found in the records of eight hospitals 17,000 administrations of chloroform up to 1864, before there was a death ; in the same hospitals during the five subsequent years there were six deaths in 7,500 administrations. Of two hospitals, under circumstances almost identical, there was in one 1,575 administrations without a death ; in the other there occurred one death to every 525 administrations.16 The following, statistics, taken from the records of institutions, may be accepted as accurate. Admitns- D trations. Bristol Infirmary, seventeen years : '* Chloroform 5,902 3 Ether 704 1 St. Bartholomew's Hospital,8* 1878-87 : Chloroform 12,368 10 Ether 5,509 2 Ether, preceded by NOa 9,072 1 [Both the ether deaths were in patients very feeble from prolonged in- testinal obstruction.] Richardson,1613 hospitals, 1848-69 inclusive : Chloroform 35,162 11 (SUPPLEMENT.) Recently, very large collections of administrations and deaths have been made, and are presumably reliable : Adminis- trations. Deaths- Julliard :5 Chloroform 524,507 161 Ether 314,738 21 Weir, New York Hospital :9c Ether 10,791 6 Gurlt17 (XX. German Surgical Congress) : Chloroform 22,656 6 Ether 470 0 Ether and Chloroform 1,055 0 Ether, Chloroform, and Alcohol.. 470 0 Gurlt96 (XXI. Congress, including above): Chloroform 94,123 36 Ether 8,431 1 Ether and Chloroform 2,891 1 „ Ether and Alcohol 1,380 0 Bromide ethyl 2,179 0 Gurlt presents the collective experience of German' surgeons. The value of his first series is increased by stating the relative occurrence of dangerous symptoms, which was : Chloroform, 71 ; ether, 0 ; ether and chloroform, 5 ; ether, chloroform, and alcohol, 4. The latter mixture is not the A. C. E., but one in which the- proportions are : Chloroform, 100 parts; alcohol and ether, each 30 parts. By the study of such statistics the relative danger of the different anaesthetic agents may be approximatively reached. The latest German writer accepts the statistics of Andrews, of this country, which make the mortality for chloroform, 0.37, and ether, 0.04.14 Wood gives the danger from chloroform as four or five times greater than that from ether,1' and this agrees very nearly with the conclusion reached by all who have studied the sub- ject statistically. Still, there are demurrers. A reviewer commenting upon the deaths reported in England, 1870- 85, says that chloroform being used in so much larger a number of cases than ether, the deaths (chloroform, 184 ; ether, 28 deaths), do not show it to be the more danger- ous agent. Macewen, commenting on like statistics, computes that chloroform is given in Great Britain ten times to ether once, and takes the same position.2 Fur- ther, the advocates of chloroform maintain that deaths during the operation alone do not represent all the mor- tality from ether. They claim that this anaesthetic fre- quently causes death by inducing bronchial and pulmo- nary affections, especially in the old, and that such cases do not appear in the tables of comparative statistics. It must be admitted that the claim is just. Gerster saw three fatal cases of pneumonia after ether, and he reports- two more and one serious attack. Five serious attacks of bronchitis followed the administration of ether in one institution.9' Experiment upon animals as a means of determining the relative danger of the two great anaesthetics has been actively prosecuted during the last few years. The Hy- derabad Commission (see under Chloroform) began this work. In the number and variety of experiments made, this commission surpassed ail former efforts in this direc- tion. But the observations they reported and the conclu- sions they arrived at differed so widely, so diametrically, from those of all other experimental physiologists that a revision and repetition of former work was absolutely necessary. The Commission, in their experiments, saw no deaths from failure of cardiac action. The conclu- sions they reached were : 1, That chloroform never causes- death in dogs by affecting the heart ; 2, that death al- ways takes place by the respiratory organs and that dis- turbance of the function of respiration invariably gives warning of danger ; 3, that when the action of the heart does fail it is the result of asphyxia, i.e., of some inter- ference with breathing, and is not a direct effect of the chloroform. These doctrines, but especially the appli- cation of these doctrines to the human subject, together with the deduction that safety could always be insured by the simple measure of watching the respiration, threat- 36 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. A n aesthetics. Anaesthetics. ened to revolutionize the clinical aspects of the subject. A number of experimental studies followed in rapid suc- cession. Wood and Hare came first with a repetition of experiments and of new ones devised.18 They arrived at the same conclusions as before, that chloroform is a powerful depressant poison, acting sometimes on the respiration, sometimes on cardiac action, and sometimes •on both together ; that it surely causes death by paralyz- ing the heart; that it sometimes does this at an early period of the administration when but a small quantity has been inhaled ; and that the danger of cardiac arrest by this agent is in direct proportion to the concentration •of the vapor and the rapidity of its administration. Dr. MacWilliam reported to the British Medical Asso- ciation an exceedingly interesting and important experi- mental study of the comparative effects of ether and chloroform.10 The results seem deserving of especial at- tention, because obtained by a method whereby the action of both ventricles and auricles were graphically recorded independent of, although with, tracings of the blood- pressure. Experiments showed, besides the usual fall of blood-pressure and marked diminution in force of the au- ricular and ventricular contractions, a decided dilatation of the organ. This dilatation was a constant feature ; it affected all the cavities ; they were imperfectly emptied. This change of form, too, was remarkable for the sud- denness of its occurrence and the early period at which it occurred. It was often seen when but a small amount of chloroform had been given. Crucial experiments were made to determine that this change was not the result of changes in the systemic blood-pressure, nor effected through the vagi, and were not dependent upon asphyxia, or any interference with respiration, but that it was the direct effect of chloroform upon the heart itself. The conclusions were that "chloroform acts directly upon the heart, causes a marked depression of the cardiac muscle, a reduction of its tone, a relaxation of its walls, and an impairment of its functional activity." It was also proved that changes in the circulation frequently first gave warning of danger, and often before the respi- ration was affected. This had been clinically established before, but was denied by the Hyderabad Commission. A further important point of this report is the proof it gives that the rate and depth of respiration influence the effect of chloroform more than any other factor. By rapid or deep breathing an overdose may speedily be taken, and due dilution of the vapor with air is not, therefore, a guarantee against accident. The effect of ether upon the heart was concurrently studied by Dr. MacWilliam. It was shown to be in marked contrast with that of chloroform. Given less carefully and less gradually it caused but little change in the action or the form of the organ. Dilatation sometimes occurred, but then only in slight degree and when the ether was given in large amount and suddenly. As a rule it was absent and no effect upon the heart was manifested, while when chloroform was administered to the same animal in the same manner marked dilatation occurred and the force of the contractions was lessened. Kappeler made a sphygmographic study of the various anaesthetics on patients and obtained results which cor- respond closely with those of Dr. MacWilliam, and which are more favorable to ether than those given in his work published in 1880.19 He observed a noteworthy differ- ence in the pulse-curves under ether and chloroform. The depression which always took place in greater or less degree with the latter, only occurred with the former in half the cases and then but in slight degree. With •ether the curves showed any considerable change from the normal only when narcotism was pushed to complete abolition of reflex action and entire muscular relaxation. The observations showed that in its slight effect upon the pulse ether is an exception to all other anaesthetics. Yet in deep and prolonged administration similar changes occurred with both, so that " while death from syncope will occur less frequently under ether than under chloro- form, such a death is, from the pulse-curve in ether nar- cosis, very possible." All experiments, then, with the sole exception of those (SUPPLEMENT.) of the Hyderabad Commission, concur in supporting the conclusions reached by Wood, that "ether usually acts very much more powerfully upon the respiration than upon the circulation, but occasionally, and especi- ally when the heart is feeble, ether is capable of acting as a cardiac paralysant, and may produce death by car- diac arrest at a time when the respirations are fully maintained ; that chloroform is capable of causing death either by primarily arresting the respiration, or by pri- marily stopping the heart, but that commonly both respir- atory and cardiac functions are abolished at or about the same time." Shore devised and executed a series of in- genious experiments wherein chloroform-carrying blood was restricted to the head of an animal, and in another to the body, the head receiving none. In the one case the fall of blood-pressure took place, in the other it did not; it was thereby proved that this fall was the effect of a direct action of chloroform on the heart and not on the vaso-motor centre.1* By recent experimental study, then, we have gained much, but rather in confirmation of doctrines already accepted than in addition to our knowledge. The dila- tation of the' heart under chloroform, and the slight effect upon its action by ether had been observed by the first committee of the British Medical Association.10 But now an essential difference of action upon the heart by the two agents is accepted no longer as a matter of clinical deduction, but stands proved beyond question. The doctrine of Bernard, endorsed by the Hyderabad Commission, that ether and chloroform are similar in action and differ only in degree, is no longer tenable. Notwithstanding the proof of an essential difference in mode of action between the two anaesthetics their relative standing has not much changed during the period under consideration. Chloroform still holds the leading posi- tion. Ether has gained considerably in England and still more in Switzerland. It has not made any advance in France ; there, " chloroform reigns almost without a rival."20 The A. C. E. mixture has advanced in favor, and is now largely used, especially in some sections of this country and in England. The estimate given at the Glasgow debate was that chloroform is given in Great Britain ten times to ether once. The statis- tics of the Twentieth German Surgical Congress showed 22,656 administrations of chloroform and 1,472 of mixt- ures to only 470 of ether.14 The second series of Guilt's statistics shows a great advance of ether. Chloroform is, then, still the leading anaesthetic of the world, despite its greater danger, proved by experiment and deduced from clinical experience. The tendency of the practice of the present time is to a choice of anaesthetic, rather than to the banishment of either. The doctrine is gaining ground that each agent is better adapted to certain cases than the other, and that it is the duty of the surgeon to choose the anaes- thetic according to the patient or to the operation to be performed. In this country Gerster and Hunter Mc- Guire have ably supported this course. Dastre likens the adhesion to either chloroform or ether alone to the attempt made in the Academy of Medicine in 1833 to de- termine whether the treatment of pneumonia should be by venesection or by cathartics.21 The operation may determine the choice. For opera- tions upon the nose, mouth, and pharynx chloroform is the best, and especially when the actual cautery is to be used. Tooth-drawing is an exception, however. Nearly ten per cent, of deaths under chloroform have occurred in dental practice, a proportion enormously high when the relative number of administrations for other pur- poses is considered. Nance says that chloroform should never, upon any consideration, be given for the extrac- tion of teeth.8* Dastre emphasizes the different effect of the two agents upon the capillary circulation, chloro- form restricting, ether increasing it. For operations after which much capillary hemorrhage may be expect- ed he would therefore prefer the former. For protract- ed operations testimony differs as to which is the safer agent. The preceding administration of morphine, or morphine with atropine, by subcutaneous injection, best 37 Anaesthetics. Anaesthetics. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. promotes the prolongation of anaesthesia with a mini- mum of the agent. xYs to operations the success of which may be prevented by vomiting, there is a singular discrepancy of testimony. Thomas has seen such bad effects from this symptom after ether given for laparot- omy that he thinks its abandonment for such cases wor- thy of serious consideration.22 Cameron bad the same experience in two out of four Caesarean sections and would not use ether again in that operation.2 On the contrary, one of the speakers at the same debate main- tained that there was much less vomiting after ether than chloroform, an opinion also expressed by Zweifel.1" The influence of morphine and atropine is undoubtedly the best means of preventing vomiting and securing quiet after operations. Dastre is strongly in favor of this plan, supporting his opinion by the practical experience of Aubert of Lyons, and by citing the well-known influ- ence of atropine upon the action of morphine as first shown by Brown-Sequard. So far as the experience of the writer goes it has not furnished a single case of severe vomiting after laparotomy for which anaesthesia had been effected by the A. C. E. mixture preceded by an injection of morphine and atropine. Certain surrounding conditions may determine the anaesthetic. Artificial light, if in open flame, would banish ether on account of the inflammability of its vapor. Both McGuire and Gerster would prefer ether, and justly so, when obliged to entrust the anaesthetic to an unskilled assistant. The limits of safety are more easily passed through inattention, carelessness, or want of skill, with chloroform than with ether. When the pa- tient cannot be fully anaesthetized with ether of course chloroform should be given. Gerster found 11 such cases in 125 administrations. The state of the patient has an important bearing upon the choice of the anaesthetic. During pregnancy the in- jurious effect of coughing and vomiting should be con- sidered. Hewitt makes obesity a contra-indication to ether.21 Arterial sclerosis should also forbid ether on ac- count of the greater increase of blood-pressure under this agent. Dr. Agnew's fatal case is an instructive example. Atheroma is also, for the same reason, a contra-indication to nitrous oxide.18 When the patient is very feeble, or has suffered from severe hemorrhage, or when shock is present, ether should be preferred. The opinion prevails that chloroform is the safer anaesthetic for the extremes of age. For the old this is correct, on account of the lia- bility of the aged to diseases of the respiratory organs. That chloroform is especially safe with young children is open to the gravest doubts. No precise statistics can be given, but numerous deaths have occurred while the num- ber of administrations is comparatively small. Of 67 deaths reported in The Lancet, 1880-90 inclusive, more than twenty per cent, were of children under fifteen ; some three, four, and five years old. Chloroform is bet- ter for young subjects on account of its manageability and promptness of effect, while its vapor is far less un- pleasant and less irritating than that of ether ; that it is safer remains unproven. There is great unanimity of opinion as to the administration of antesthetics to patients suffering from heart disease. Valvular disease, compen- sation being maintained, is no bar to their administration. Fatty degeneration, if diagnosed, would contra-indicate chloroform. Richardson says he knows of but one condi- tion of exceptional danger with chloroform, " a dilated and weakened right heart." 16 There is no question that a patient with valvular disease will go through the strain of an operation or of a severe labor better with an anaesthetic, even with chloroform, than without. The .autopsies of deaths under chloroform have not revealed lesions of the valves. McGuire has given chloroform to " hundreds of cases " of valvular disease without accident.24 For pa- tients with a "nervously weak heart," feeble in action from fear, he and some others would reject chloroform. The effect of morphine and atropine is best adapted to this condition, quieting the emotional element, which has sometimes alone been the source of danger and death. There is like unanimity of opinion as to disease of the respiratory organs. Here chloroform should be preferred. (SUPPLEMENT.) Hyperaemia of the larynx, bronchitis, and pneumonia, ora tendency to these diseases, forbid the use of ether. Pleu- ritic effusions add very much to the dangers. Three cases of death from ether in patients with empyema were re- ported at one society.9 In some cases, as of emphysema with enlarged heart, judgment is difficult; there is dan- ger on either hand. Here, as in many other cases, Bux- ton and Hewitt advise the A. C. E. Disease of the kid- neys has been held to be a contra-indication to ether since Emmet, in 1872, first called attention to the subject. In recent years, however, the injurious effect of ether in patients thus affected has not only been questioned but denied, and at present very considerable difference of opinion prevails. Fueter reports a series of experiments with results wholly negative. He reports also four cases of patients with albuminuria to whom ether was adminis- tered without increase of albumin afterward.6 Weir also reports five cases of patients who presented evidence of diseased kidneys before operation and without injurious effect.40 Buxton says that a considerable experience with operations on the kidneys in which he had given ether, induces him to attach less importance to this point than formerly.10 This is negative testimony. Looking over the positive evidence, such as that presented by Carpen- ter,94 the number of cases in which nephritis followed the administration of ether, those of death under ether in which the autopsy showed diseased kidneys, and it must be conceded that the weight of testimony sustains the view that ether exerts an unfavorable influence upon the kidneys and should not be given when they are dis- eased. To support this proposition Weir's statement may be quoted, that he found nine cases of transitory albumi- nuria after thirty-four administrations of ether. Various measures have always been resorted to before inducing anaesthesia to modify the process, and with a view of lessening its dangers. The one most generally' used, and in which the utmost confidence has been ex- pressed, is a dose of some alcoholic stimulant. Clinical proof of the inefficiency of this measure is abundant. In about five per cent, of the deaths from chloroform this plan was followed. Since both Wood and McGuire have recently expressed the opinion that the influence of al- cohol rather increases than lessens the danger from chloroform this plan will probably be abandoned. The sole excuse for resort to it would be great fear on the part of the patient, and this condition is much better met by the influence of narcotics. This latter modifica- tion of the anaesthesia is the most important measure of the kind. The method consists in giving hypodermati- cally £ to | grain of morphine (0.0108 to 0.0162), and from T6o to tIo grain of atropine (0.0004 to 0.0005) about fifteen minutes before the administration of the anaesthetic. Much additional testimony in favor of this " mixed anaesthesia," or "mixed narcosis," has been recently given. A paper lias been published in this country ad- vocating it and presenting its especial advantages in gynecological practice.26 Dastre has warmly advocated it, and given both physiological and clinical evidence in support of it. His testimony is very strong : " With chloroform alone we lost one dog out of three, and often had dangerous symptoms in the other two. During ten years with the mixed method I have not seen a single one die." Dastre supports the method in the human subject theoretically by7 claiming that "it is equivalent to a section of the vagi ; " that " all arrests of cardiac action under chloroform are certainly active, not para- lytic ; they are due to the action of the pneumogastric nerve, and may be prevented by the suppression of the activity of this nerve." However this may be, sound physiological support of the measure is to be found in the stimulating influence of atropine on respiration and cardiac action, as first shown by Harley and by Bartholow. Dastre presents a large amount of favorable clinical evidence from the surgeons of Lyons, where the practice has been followed for eight years, and in " several thou- sand cases " without accident. The plan is advised and followed by Buxton and McGuire. Pozzi20 says that to this method " can scarcely be awarded too much praise in operations of any considerable length. ... It pre- 38 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) A n aesthetics. Anaesthetics. vents the initial excitement, diminishes the nausea, limits the amount of chloroform used, and consequently lessens the chances of chloroform-poisoning in operations of long duration."* The changes, then, which have occurred in this branch of artificial anaesthesia in the past few years may be said to be : 1. The presentation of a large amount of evidence, both experimental and clinical, in favor of its greater safety. 2. An increase of evidence as to its influence in lessening vomiting. 3. The great probabil- ity that the benefits of the measure are not restricted to chloroform. Kappeler26 had given his opinion against the administration of narcotics before ether, believing that they increased the danger. Experience has not sus- tained this. Julliard gives morphine and atropine before ether. The writer has used them before the A. C. E. during a lifetime, and has not once seen dangerous symp- toms. Shrady advises morphine before ether in drinkers. The latter writer also presents strong testimony as to great economy of anaesthetic and of time by this method. Plastic operations under ether which required one hour were performed in half that time when morphine was given first.9 Adverse opinion has been expressed upon this method ; adverse testimony, however, is not strong. The Hyderabad Commission is not favorable to atropine, but advises the use of small doses of morphine under some circumstances. Macewen states that " the action of morphine becomes intensified in the presence of chlo- roform." Yet there has been such an amount of clinical experience with this method that if it added to the dan- ger the fact would be apparent. Some deaths have been reported ;25 one recently in this country after the ad- ministration of a quarter of a grain of morphine,46 pre- ceding chloroform. Two points in regard to anaesthesia may be considered settled : 1. There is no especial mode of death under either anaesthetic ; that ether always causes death by the respiration, and chloroform always by the heart, is no longer tenable. Wood's statement (v. ante) gives our present knowledge as to modes of death and their relative frequency. 2. All anaesthetics are dangerous ; no care, no precaution, no particular apparatus or method of ad- ministration insures absolute safety. This is the ex- pression of all recent authorities, the Hyderabad Com- mission alone excepted. In measures for resuscitation of patientSfin danger from anaesthetics some changes have taken place. The beneficial effect of galvanism remains unproven. Two remedies generally resorted to have been shown by Wood to be not only useless but injurious ; they are the administration of ether and of alcohol. Unsupport- ed by reason, experiment shows that they should be abandoned. Digitalis, given hypodermically, exercises a marked influence upon the circulation, and Wood saw, several times, the death of animals averted by it. Strychnine also produces a marked stimulating effect upon the respiration with a rise of blood-pressure ;13 but Reichert's experimental studies do not sustain Wood's opinion of the value of strychnine as a respira- tory stimulant.21 Hankel recommends it, however, "as the strongest stimulant of the respiratory centre and of the motor cardiac nerves." As to nitrite of amyl, the testimony is conflicting. Wood found its effect nega- tive. Buxton says it is not a physiological antidote to chloroform. On the other hand, Shrady and others report having used it with benefit, and Burrall has pub- lished a paper with a collection of cases in its support.911 Inversion of the body scarcely holds the confidence it once had. The existence of cerebral anaemia, upon which this measure is theoretically based, is doubted by Wood. Dastre says that ether causes cerebral hyperae- mia, and that therefore, with this agent, the dependent position of the head is likely to aggravate the symptoms. The measure originated from observation of its good effect on animals, and experiment still sustains it. Wood saw its good effect frequently, and in some cases repeat- ed so often that it could not be attributed to accident. There is very strong clinical evidence in its favor. Chisholm has reported cases of recovery quite as striking as the one first described by Sims in Nelaton's practice. He gives four successful cases ; in one the measure was repeated three times before the completion of the opera- tion.9' Artificial respiration still maintains the leading position it has always held. Authorities are unanimous as to the superiority of this measure. It has the strong- est support from experiment. In man, if respiration be in abeyance, this is the direct and only way to restore it. If the heart is paralyzed nothing can restore its vitality, but its action may be so reduced as to be imperceptible, and then the manipulation of the chest-walls is an effec- tive means of increasing it. Early resort to it is impor- tant. The Hyderabad Commission found it successful almost without exception if not more than thirty seconds had elapsed before it was commenced, and almost useless if not begun until after fifty seconds. Nussbaum em- phasized the importance of the first minute. Whatever method be followed thorough expiration should be first effected. By this means the anaesthetic vapor of the residual air is expelled. Again, expiration is much more affected by anaesthetics than inspiration.21 In deep anaesthesia expiration is purely passive, very feeble, and danger to respiration comes in this way. Nuss- baum's plan was, thorough slow compression of the thorax and abdomen with both hands, and this repeated every three or four seconds. He had 15,000 adminis- trations of chloroform without a death ; nine times, however, the escape was narrow, and once ten minutes elapsed before the first breath was drawn, and thirteen more before respiration was established;14 Konig's plan is similar; it consists in compression of the cardiac region, repeated thirty to fifty times in the minute, one thumb pushing deeply into the space between the ribs and left edge of the sternum. Maas reports two striking recoveries by this method.16 The patients were nine and a half and thirteen years old ; both were pulseless, with suspended respiration and dilated pupils; in one artifi- cial respiration by Sylvester's method and inversion of the body was tried ; in both there was opportunity to observe the good effects of the measure Several times, and over an hour of perseverance was required before recovery was assured. McWilliam found that the most powerful way of increasing the carotid blood-pressure in animals deeply narcotised by chloroform was by firm intermittent compression of the abdomen.16 Considerable attention has been directed of late to the purity of chloroform. Probably very few, if any, deaths have been caused by an impure article. Dastre found no instance in 132 fatal cases which occurred from 1865 to 1880, and he thinks this a convenient explanation of death for the relief of the administrator. Recently, however, DuBois-Reymond has made a study of this subject. He has followed a plan devised by Pictet, of Geneva, whereby chloroform is submitted to the influ- ence of intense cold and impurities in it thus removed. Chloroform thus purified showed far greater stability ;21 exposed to air and light it remained unchanged for a week, while ordinary chloroform showed signs of decom- position within two days, sometimes in a few hours. Anaesthesia was produced by the purified article more promptly and was more enduring. Experiments were made on animals with the residue and the injurious effect of the impurities thus demonstrated.'8 In Ger- many, according to Foy,29 great impurity of chloroform is not rare. In England chloroform is likely to be con- taminated with the methyl compounds from the use of methylated spirit in its manufacture.8' Reynier found necessity for investigating the purity of chloroform in France.30 He attributes cough, vomiting, bronchial hypersecretion and arrest of respiration to impure chlo- roform. He had observed a far less mortality in dogs experimented on since he had used only chloroform rec- tified the evening before and kept in colored bottles. In the debate M. Lucas-Champonniere maintained the importance of this point ; with pure chloroform anaes- thesia is regular ; with impure there are irregularities * This writer claims it as " the method of Dastre and Morat." It was used in this country from 1870, continuously since, and publicly advocated as early as 1876.25 Dastre's work appeared in 1890. 39 Anaesthetics. Anenionine. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) and accidents. In obstetrical practice he had found it of especial importance. "If I have good chloroform I effect readily that demi-ansesthesia desired in natural labor; if not, I fail; I narcotise too much or not enough." DuBois-Reymond's chemical position has been called in question by Schacht.21 In this country pure chloroform, the product of reliable manufacturers, is everywhere at command, yet the necessity of care in selection is shown by the following official table of examinations of the articles :31 use of Junker's inhaler, a closed apparatus, which in- fluences both the other factors. The bromide of ethyl seems to be actively recovering from the neglect into which it fell about a decade ago. The reaction began in 1888. and has been the work of German dentists. Strong testimony in its favor, experi- mental and clinical, was presented to the Tenth Interna- tional Congress by Hollander and Abonyi. A paper em- bodying the experience of 1,500 administrations is given by Gilles."d It is stated that there have been 20,000 safe administrations in Germany, the accidents being at- tributed to impurity of the article used. In this country it has been advocated by Montgomery, 500 cases, by Kuy- kendall, 250 cases,S14" and it is stated that Chisholm and Prince have administered it to several thousand cases.21 It has been opposed by Mittenzweig, who gives three cases of poisoning in Berlin, two fatal.14 Brinton was led to abandon its use from unpleasant experience.81 Dastre says : "If physiological analogies do not deceive us, the bromide of ethyl, for long operations, offers greater dangers than ether or chloroform." Kappeler found that it exercised a marked influence upon the pulse-curve, and hopes that it will be " consigned to for- getfulness."19 The writer inhaled it three times, under the supervision of medical friends; its effect upon the pulse was so marked that he decided never to administer it.32 To all previous adverse experience the friends of this agent urge that the purity of the article is essential ; and it is an article very difficult to obtain pure. Never- theless Witzel, who terms it " the safest narcotic for hu- man beings," saw, in 465 administrations, disagreeable symptoms 28 times, asphyxia in a number of cases, and twice artificial respiration was required.21' Gilles urges the importance of a special technique : it should be given more freely than chloroform ; the mask should consist of several folds of gauze, so as to carry considerable liquid, and over this should be an impermeable cover. Anaesthesia by this agent is exceedingly pleasant, very rapid, with equal rapidity of recovery. The writer can testify to these points from personal trial, and, if safe, he would term it the ideal anaesthetic. The time required for complete anaesthesia is fifteen to ninety seconds, aver- age eighteen. The following points are derived from the writings of advocates as well as opponents : 1. Bro- mide of ethyl is adapted only to very short operations, those lasting not over a minute or two. 2. Not more than five to ten grammes should be administered. 3. Mus- cular relaxation is not obtained ; a gag is necessary for tooth-extraction. 4. Muscular rigidity is frequent, some- times tetanic, with opisthotonos. 5. Excitement, al- though unusual, is sometimes greater than with chloro- form. 6. Dreams are extremely vivid and sometimes erotic. Gilles denies that they are of this character " in one-third of all cases." He saw sexual movements in one case, and Wetzel saw them in women several times in 465 administrations. 7. In some cases it is followed by distressing vomiting, even when but a small amount has been given. 8. Arterial hemorrhage is favored. 9. An unpleasant odor of garlic is present for some days in the breath of those who have inhaled it. In view of the conflicting experience, this agent should be submitted to further careful chemical and experimental investigation. The authors of the papers above quoted concur in the statement that neither pulse nor respiration are materi- ally affected in patients submitted to its influence. There has been no change worthy of note in either the theory or practice of anaesthesia in obstetrics. No addi- tion to the mortality in natural labor, the anaesthetic be- ing administered by a medical man, can be recorded. A brief treatise upon the subject has been published in this country as part of an obstetrical work." Baldwin has made a plea for a more general resort to chloroform in labor,124 and Barker has published an inquiry as to the influence of anaesthetics in causing post-partum hemor- rhage.184 This paper is based upon the observation of several thousand cases, and the author's conclusion is that chloroform, properly administered, need never be withheld on account of hemorrhage. The experience given in support of the doctrine that valvular disease of Number of examina- tions. Good qual- ity. Fair. Inferior. Not ether at all. ,Qcn 1 Chloroform 21 15 5 1 18o!H Ether 6S 40 4 22 2 13 8 4 1 16!,°- 1 Ether 30 17 12 1 ion< i Chloroform 17 15 i 1 I39k i Ether 61 38 4 19 The vapor of chloroform undergoes decomposition when exposed to the flame of artificial lights. Zweifel first called attention to this fact in a paper on pneumonia after laparotomy from decomposition of chloroform in gas-light.1' He maintained that gases are formed which are very irritating to the respiratory organs, occasion cough, and may be the cause of inflammatory affections. By the contrast of daylight operations and of those con- ducted under ether he furnished abundant clinical proof. Basshard studied the subject chemically and demonstrated that free chlorine and phosgene gas are formed when chloroform is exposed to gas-light.18' Eisenlohr and Fermi furnished experimental proof that injurious and dangerous gases may be thus generated.114 Amidon read a paper upon the subject which called forth reports of other cases from New York surgeons.4' Fatty degeneration of the tissues is occasioned by pro- longed and repeated inhalation of chloroform. The fact was noticed by Nothnagel in 1866. Attention was di- rected to it again by Unger in 1887, and his observations have been confirmed by Strassman and by Ostertag.83 The experiments of these observers showed that in ani- mals exposed to prolonged inhalation of chloroform the internal organs had undergone fatty degeneration ; that certain individuals exhibited a greater susceptibility to this change than others ; and that in these animals death took place by paralysis of the heart. The fact should be known as one having clinical possibilities. Bichloride of methylene, introduced by Richardson in 1867, has not succeeded in gaining a footing in this country. Nor has it advanced in favor elsewhere, not- withstanding Wells's experience of twelve hundred administrations without a sign of danger. Pleas have recently been made in its favor by Day,13 and by Rich- ardson,164 the latter giving a large, varied, and suc- cessful experience. Bichloride of methylene, pure, is a "convulsive anaesthetic," not adapted to surgical use. The liquid which passes under this name as methylene is a mixture of chloroform 10 parts and alcohol 30 parts.21 Kappeler obtained several specimens from the best English sources and found them to consist of "a mixture of chloroform and methyl alcohol, with traces of chloromethyl." 19 Richardson does not claim that it is pure, but that "a less refined product answers even better for anaesthesia than the real CH2C12." The rate of mortality of this agent has been high. Kappeler refers to 14 deaths collected by himself in 1879, and gives 5 more. Hankel says that the few leading English jour- nals, 1869-80, contain reports of 11 deaths from it, 7 by syncope. This was the same mortality as that from ether during the same period with a very far greater number of administrations. Dastre attempts to reconcile the high rate of mortality in general with Wells' and Richardson's successful experience. He believes an explanation may be found in the different temperatures at which the agent was administered, in changes which take place in the liquid even during administration, and especially in the 40 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Anrestlielics. Anemouine. the heart is no bar to the use of chloroform is especially valuable. Montgomery has advocated the use of bro- mide of ethyl in labor, and reported cases.27' The ad- ministration of this agent is restricted by its best friends •to very brief periods. Charpentier presented the subject ■of anaesthetics in natural labor to the Obstetrical Society of Paris.'*0 He recognized the undoubted tendency of chloroform to diminish the contractile and retractile power of the uterus, and that in some cases it " has been ■the cause of more or less severe hemorrhage after labor.'' It is indicated " in primiparae who are nervous and excit- able, and in whom the pain may even cause delirium ; in those in whom the labor is greatly prolonged ; in all cases in which there is spasm, contraction, or rigidity of the neck or body of the uterus." It is contra-indicated in " absence of severe suffering, the existence of placenta praevia, general prostration, diseases of the circulatory or respiratory organs, cerebral disease, and alcoholism." In regard to cardiac disease, he is not in accord with Barker nor with the general testimony of authorities. The occurrence of insanity after the administration of anaesthetics has been observed. This is the subject of a paper by Savage, read before the British Medical Associ- ation.1' Mental aberration has followed all the anaes- thetics, as well as other deliriants, such as alcohol and belladonna. Such a result is rare, but its possibility may bear upon the use of these agents with patientshaving an hereditary disposition to insanity. One case with such disposition was related, in which insanity followed the first confinement, chloroform not having been given, while several times subsequently the anaesthetic was ad- ministered and no bad effect followed. Homans 106 has reported two cases of insanity following ether, and sev- eral others are mentioned.9 Papers upon insanity follow- ing operations, especially laparotomy, have been pub- lished by Baldy16 and by Ill?4 How far the mental ■disturbance in these cases should be attributed to the operation or to the anaesthetic it is impossible to deter- mine. Pental (q. v.) has recently been used in Germany as an anaesthetic for short operations, and several hundred ad- ministrations have been reported. As it caused cyanosis with absence of pulse and suspension of respiration in a healthy student, who submitted to its influence, as Gurlt reported to the Twenty-first German Surgical Congress one death in 215 administrations, and as Brewer, of Vienna, found measures of resuscitation necessary in one of every hundred administrations,35 the future of this agent is not promising. Local anaesthesia has been revolutionized within about a decade by the extension of the application of cocaine (q. v.). Menthol is also an efficient addition to our means of lessening sensation locally. The following, used with Richardson's spray apparatus, renders good service : B. Menthol gr. 2.5 Chloroform gr. 25.0 Ether gr. 37.50 M. With the means now at command for local anaesthesia a death from chloroform, given for opening a mammary abscess,36 could not be considered less than criminal. J. C. Beeve. 1 Brit. Med. Jour., ii., 1892; a, ii., 1891 ; b, ii., 1890 ; c, i., 1879, ii., 1880 ; d, ii.. 1888 ; e, ii., 1887. 2 Discussion on Anaesthetics. Glasgow. 1891. 3 Chloroform the Best Anaesthetic. Baltimore. 1S88. 4 N. Y. Med. Jour., i., 1887; a, i„ 1890 ; b, i., 1892 ; c, i., 1891. 6 Rev. Med. de la Suisse Romande, February, 1890-91. 8 Deutsche Zeit. fiir Ghir., Bd. xxix., 1888. 7 Berlin klin. Wochenschrift, No. 8, 1890; a, 15, 1889 ; b, 12. 1892 ; c, 15. 1889; d, 8, 1892. 8 London Lancet, ii., 1891 ; a, ii., 1890 ; b, ii., 1890 ; c, i., 1888 ; d, ii., 1889. * Med. Rec., i., 1889; a, i„ 1891: b, ii., 1892 ; c, i„ 1887; d, i., 1886 ; e, i., 1888. 10 Boston Med. and Surgical Jour., ii., 1888 ; b, cxxi., 1889. 11 Anaesthetics. Philadelphia. 1888. 12 Trans. Ohio State Med. Soc., 1891; b. 1890. ' 13 Wood's Address, International Congress, 1890. 14 Hankel : Handbuch der Inhalations-Anojsthetica. 1891. 16 Am. Jour. Obstet., xxiv., p 1461. 16 Asclepiad, 1892; b, 1888. 17 Ther. Monatschrift, August, 1891. Med. News, i., 1890 ; a. ii., 1887 ; b, i., 1887; c, ii. 1889. J1 Archiv. f. klin. Chir. 1888. 20 Pozzi: Treat, on Gynaecology. New York. 1892. 21 Les Anaesthetiques. Paris. 1890. 22 Med. and Surg. Rep., 1889. 23 Treves : Op. Surg. 1892. 21 The Choice of General Anaesthetics. Richmond. 1887. 25 Trans. Am. Gyn. Soc., 1891. 28 Anaesthetica, Deutsche Chir., 1880. 27 Ther. Gaz., April, May, June, 1892 ; b, May, 1892 ; c, June, 1892; d, April, 1892, e, January, 1892. 27("« Southern Med. Rec.. 1891. 28 Amer. Jour. Med. Sc., April, 1892. 2:1 Anaesthetics, Ancient and Modern. London. 1889. 80 Bull, et Mem. de la Soc. de Chir. de Paris, xv., 1889. 31 State Board of Health, of N. Y., Dr. W. G. Tucker, Albany. 32 Cin. Lancet and Clinic, 1880. 33 Amer. System Obst.. vol. i. 1888. 34 Pittsburg Med. Review, 1888. 36 Annals of Surgery, January, 1893. 38 Jour. Am. Med. Assoc., March 7, 1891. [Since this article was prepared there has been published a large col- lection of statistics in the Medical News, October 29,1892, and a valuable article on " Recent Physiological and Chemical Research on Anaes- thesia " in the British Medical Journal of same date. A second edition of Buxton's work on Anaesthetics has also appeared, Philadelphia, 1892.] ANCHYLOSIS. A new use of the terms true and false anchylosis, based upon the symptomatology and treat- ment, has recently been employed by a few orthopedic surgeons. They would have true anchylosis embrace both bony and fibrous union, provided it be complete, sound, and uninfluenced by use ; false anchylosis would then be applied to those stiff joints in which some degree of motion is present, those in which disease (unsound- ness) still remains, and all joints which by use become more deformed and more stiff, or less deformed and less stiff. The justification of this terminology rests chiefly in the treatment. True anchylosis should only be subjected to treatment for the correction of existing deformity. Brisement force, osteoclasis, osteotomy, and excision are demanded, according to the nature of the deformity. False anchylosis, existing without deformity, should be treated by immobilization until the joint is quite sound ; if the.result is true anchylosis no further treatment is de- manded ; but if the joint recovers soundness with some degree of motion, the fullest possible restoration of func- tion will be gained in time without further treatment. Brisement force and passive motion cannot be employed without a risk of rendering the joint once more unsound. If false anchylosis be present in a deformed joint, the deformity should be corrected under an anaesthetic, the surgeon using as much force as can safely be risked, at one or more sittings ; after each forced correction the joint should be kept at rest until all pain has ceased, when the attempt to reduce the deformity should again be made. When the deformity has been fully corrected, the joint should be immobilized until it has become wholly sound, after which the rules applicable to a straight limb should govern the management of the case. It is no longer believed that true anchylosis can be produced by immobilization alone, no matter how pro- longed. The fact that anchylosis is present in a joint is a positive indication that it has been, or still is, the seat of some pathological process, and from this the logical conclusion follows that the treatment which will most rapidly cure the disease must result in the fewest cases of true anchylosis. John Bidion. ANEMONINE. The active principle of anemone pul- satilla, L., CisHisOe. It crystallizes in needles, has an acrid taste, is slightly soluble in water, soluble in alcohol and chloroform. It is decomposed by alkalies. It is recommended as a substitute for pulsatilla. Dose, from to | grain. In large doses it is a powerful poi- son. It is used in painful inflammatory affections of the ovaries and other pelvic organs, in orchitis and epi- didymitis, and in all other affections in which pulsatilla is indicated. 41 Anemonine. Aug.-Neuro. (Edema. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. The alkaloid requires to be prepared with care, as the presence ot' anemonic acid converts it into anemone camphor, which produces its irritant and poisonous properties. Beaumont Small. ANGEIO-NEUROTIC (EDEMA. Definition: A vaso- motor neurosis, characterized by the appearance of cir- cumscribed swellings on various portions of the body, by preference the face, throat, and extremities, without ap- parent cause or premonition, and non-inflammatory in character. Synonyms: Acute circumscribed oedema ; acute idio- pathic oedema ; periodic swelling ; urticaria tuberosa, or giant swelling ; acute non-inflammatory oedema ; Austra- lian blight. Histoky.-Although references to this affection may be found here and there in medical literature since 1827, it is only within the past ten years that it has been recognized as a disease having sufficient individual char- acteristics to have a history and special designation of its own. It is to Quincke, and his pupil, Dinkelacker, that we are indebted for calling the attention of the profession to this disease, in such a lucid manner that it was at once recognized by other physicians. Etiology.-Age.-The period of early life furnishes the greatest number of cases; the average age in a series of seventy-five cases examined by the author being twenty-seven. It rarely occurs for the first time in indi- viduals upward of sixty years of age. Childhood, however, is by no means exempt; a case is reported by Dinkelacker, in which a child, whose father suffered from the disease, had an attack for the first time when it was three months old. Sex.-It occurs nearly twice as often in males as in females, except in this country, where the proportion would seem to be reversed. Occupation.-Those whose occupation tends to the pro- duction of excessive bodily and mental fatigue, are the only persons who show an increased susceptibility to the disease. Heredity.-This is one of the most important and in- teresting elements in the genesis of the disease. It has been seen to run in families one generation after another. In a remarkable series, reported by Osler, the disease was demonstrated to be present in five generations, including in that time twenty individuals. Previous and Present Condition of Bodily Health.-No relationship can be traced to previous, immediate, or re- mote disease, and the majority of the cases presenting themselves with this disease are in fairly good health. Exciting Causes.-Of the directly exciting causes cold and traumatism are the most obvious. Others, such as fright, grief, anxiety, worry, and the ingestion of certain kinds of food, such as apples or fish, have all been found to be exciting causes in some patients. An attack is most commonly excited by cold, as in passing from a warm into a cold atmosphere, although it does result after severe muscular exercise with consequent sweating and then becoming cool very rapidly. The period in the twenty-four hours when attacks are most liable to show themselves, is during the time between 1 and 5 a.m., when the tide of life is at its lowest ebb, and the parts are least resistant. Area of Distribution and Primary Point of Manifesta- tion.-In a total of seventy-one cases the swelling showed itself for the first time: in the face, in twenty-nine cases; on the extremities, in twenty-two; in the larynx, in five; on the genitals, penis, and scrotum, in three; on the body, in six; on the gums and palate, in one; in the stomach, in three; on the neck, in one ; and behind the ears, in one. Of the cases in which the swelling showed itself upon the face, three were restricted to the forehead ; three occurred first on the eyelids ; seven on the lips, and the remainder were distributed over various portions of the face. On the extremities the hands were by far the most often attacked, and after these the forearms were the next most frequent seat. The occurrence of the swelling in one spot seems to predispose the place for future attacks, and it is the ex- (SUPPLEMENT.) ception for it to be once seen in a place which thereafter remains free. Parts of the body which have received in- jury or have been the seat of protracted pain seem occa- sionally to be favorite places for the development of the swellings. Occasionally there seems to be a periodicity in the appearance of the swelling. Symptomatology and Clinical Course.-The mani- festations of the disease generally present themselves with- out warning, and the suddenness of their appearance and departure are rather characteristic. Possibly the patient may complain for a short time before the appearance of the swelling, of vague feelings of malaise, general disincli- nation to do anything, and a feeling of depression associ- ated with ill-defined gastro intestinal symptoms. The oedema conies on quickly, generally reaching its full de- velopment in a few hours, and gives the patient very little trouble, except by its mere presence; there is a feeling of stiffness and unwieldiness and a sensation as if the parts were on the stretch, but this sensation is not attended with pain or distressing throbbing, or any of the subject- ive symptoms of inflammatory swelling. The swelling is generally clearly circumscribed and plainly differentiated from the surrounding surface, and of a varying color. In some cases, but probably not in the majority of them, the skin is of a dark-red, dull roseate hue, while in others the marked contrast between the pale, almost waxy color of the swollen surface and the skin around it, is very strik- ing. As has already been stated, the swellings have marked predilections for certain parts of the body. The oedematous part does not pit on pressure, or, if it does, only in a few cases, and in these not to any marked ex- tent, so that the indentation produced by the forcible pressure of the finger is quickly effaced. The subjective symptoms complained of by the patients are a sense of scalding or burning as the swelling is show- ing itself, these sensations being probably due to the marked tension under which the skin is suddenly placed ; and after this, there is generally a feeling of itchiness.. Outside of these, if the swelling does not encroach on any organ, such as the eye, the stomach, the penis and! testicles, or does not block up the conductivity of a pas- sage, as it sometimes does, and so produce trouble, there- will be hardly any other subjective symptoms com- plained of. Frequently the surface temperature of the swollen part has been found to be slightly elevated, while on the other hand carefully made observations have de- monstrated that the specific heat of these parts was con- siderably lowered. It is probable that at the beginning of an attack the surface temperature of the part is some- what elevated, while later, or just before the swelling is going to wane, the temperature falls. The swelling generally reaches its height in any one- part in a few hours after its appearance, in some cases in a few minutes, while in others from six to eight hours will elapse. After remaining for a period varying from a few hours to as many days, it will begin to disappear, ordi- narily with a rapidity corresponding to that with which it showed itself, and frequently its disappearance from one part is the signal for its appearance in another,which may have no anatomical or physiological relation to the- part previously affected. As a rule it does not show itself in more than two or three localities at one visitation,, and frequently only in one. The disease recurs, and in the analysis of the cases spoken of above, the time be- tween the attacks averaged nineteen days. Occasionally a patient will have three or four attacks in a month, while others go for three and four months, and even longer, before they have a recurrence. The symptoms of the disease when some of the mucous membranes are attacked are well marked and suggestive. As has already been said, the mucous surfaces most often attacked are those of the stomach and of the larynx. In about one-third of the cases gastro-intestinal symptoms are prominent. These symptoms are first a feeling of unea- siness and tension, as if something undigestible had been taken and had remained in the stomach. With this there is loss of appetite generally associated with constipation, which is soon followed by a distended appearance of the epigastrium ; and then follows a sharp colicky pain. 42 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. A iienioiiine. Aug.-Neuro. <E de in a. often attended with profuse vomiting and great thirst. The pain is often so severe as to demand the administra- tion of morphia. The character of the material vomited depends at first upon the contents of the stomach, but later on it becomes watery and somewhat stringy from the mucus which it contains, and frequently profuse in quantity. When this continues for any length of time the thirst becomes greater, and large quantities of urine are frequently passed, which, however, contains nothing abnormal with the exception of increased quantities of earthy phosphates. After this exacerbation in the symp- toms has ceased, the reaction sets in, and there is fre- quently a diarrhoea of a colliquative nature, w ith an ap- parent retraction of the abdomen and a general feeling of lassitude and prostration, and the characteristic symptom of the disease shows itself in another part of the body, or, if it has already done so, it now' begins to disappear. When the swelling appears in the larynx it of course produces symptoms in proportion to the amount of encroachment that it makes. This is often so great that distressing symptoms of suffocation are produced, and, indeed^ in some instances, in consequence of the oedema, death has taken place, and in many others the symptoms are so severe as to demand liberal scarification, or, more rarely, tracheotomy. As a rule the swelling does not pass by any continuity from the pharynx into the larynx, but when it is to attack the latter it shows itself with the same degree of abruptness and vigor there as in other parts of the body, and as a consequence the horrible sen- sation of choking to death is added to the patient's misery. Difficulty in swallowing when the seat of swelling is in the pharynx, is not so common as the corresponding symptom in the larynx, nor does it ever become so dis- tressing. If it be granted that the oedema in question may manifest itself in the lungs, as many good observers would have us believe, the symptoms resulting will not differ materially from those of acute pulmonary oedema, except in the suddenness of its onset, the urgency of the symptoms, and the abrupt mode of departure. Of the general health between the attacks but little is to be said. Generally there is nothing noticeably wrong ; for a day or two after an attack there may be a slight feeling of prostration, especially if the gastric or intestinal mucous membrane has been attacked, but this soon passes away and the condition of the body is excel- lent until the next attack shows itself. Frequently there is not even this feeling of lassitude. Diagnosis.-The diagnosis of a case of angeio-neurotic oedema will be attended with little or no difficulty if arrived at by the process of exclusion. The spontaneous appearance of the oedema, its recurrence at certain intervals, the absence of inflammatory symptoms, either local or constitutional, and the abruptness of its dis- appearance, are generally sufficient to enable us to. rec- ognize the disease at once. It may be confounded with the blue oedema of hysteria, as described by Sydenham, or the white oedematous swellings occurring with the same disease, as described by Charcot. In hysteria, however, and especially if the hysterical attack is sufficiently profound to have oedema as one of its attendants, there will always be found the well-known stigmata which will be sufficient to make the diagnosis. Other factors, such as the abruptness of onset and the mode of departure, as well as the distribution of swelling in angeio-neurotic oedema, will corroborate the diagnosis. There are a certain number of affections described under other names which are in all probability modified forms of this disease. They are, urticaria tuberosa, Aus- tralian blight, malarial oedema, etc. As will be seen at the beginning of this article these terms are considered as synonyms of the disease in question, and therefore require no further description. Duration and Prognosis.-The duration of the disease varies from a period sufficient for one attack to a lifetime. The statistics bearing on prognosis do not allow us to draw conclusions that are of any great value on account of the fact that the patients do not often re- main under the same physician's care sufficiently long to (SUPPLEMENT.) enable him to study the natural termination of the disease. From the evidence in our possession I am inclined to believe that the disease disappears after lasting a variable time, of from two to three years, in about one-half the instances. In the other half it may remain dormant for prolonged periods, but you can never prognosticate when or where it is next going to manifest itself. In others it continues to recur with varying intervals during the patient's entire life, which may not, however, be percep- tibly shortened by the exhibition of these attacks. In some cases the manifestations cease to present themselves when the exciting cause can be obviated. It rarely causes death, and then almost alone by the involvement of the larynx and consequent suffocation. Whether or not the possession of this infirmity tends to shorten life by predisposing to other conditions which destroy the life of the patient, nothing definite has been observed, and there must necessarily be a greater number of observations before any justifiable conclusions could be drawn in re- gard to this point. Pathology.-The pathology of the disease is as yet rather obscure. The nature of the lesion is unquestionably that of a non-inflammatory oedema circumscribed in form. The fact that the epidermis is not involved is an important corroborative fact, even if it was not so evident clinically that the oedema is in no way connected with an inflammatory condition. The seat of the oedema is- probably most often in the connective tissue of the derma, beneath the papillae, and in the subdermal tissue ; very rarely the oedema confines itself to the more super- ficial parts. It is probable that although the lesions or the irritants on-which the disease is dependent may attack the other parts of the system, yet the result di- rectly appears through the sympathetic system of nerves. Furthermore, the nerves affected are undoubtedly the vaso-motor nerves. The disease in its development has a close relation to other vaso-motor neuroses, such as morbid blushing and flushing, exophthalmic goitre, and to many of the arthropathies as yet not well understood. An oedema very similar to it is associated with tic dou- loureux, migraine, nerve-stretching, and the oedema oc- curring in hypnotizable subjects, following a seance. Treatment.-Therapeutic measures are of little avail, either in mitigating the length or the severity of an attack, or in increasing the intervals between their occurrence. The greatest success will be obtained by adopting such measures as give tone and stability to the nervous system. As an all-round vaso-motor and general tonic to the nervous system of the body strychnia most nearly reaches the mark. It should be given in large doses and until its full physiological effects are manifest, particu- larly on the spinal cord ; for although the affection is one indicating defect in the sympathetic nervous system, we must not forget that the origin of that system is in close relation genetically with the spinal cord. The next most important drug in the treatment is atropia ; it should be likewise given in moderately large doses, and its adminis- tration continued during the intervals between the attacks. Tonics, invigorating baths, exercise, massage, and the prevention of trauma are the most important factors in the treatment of this disease. It is unnecessary to enter into details concerning the treatment for symptoms as they arise. If there be an excess of uric acid in the blood, as manifested by a disproportionate relation to the urea in the urine, this condition demands regulating. The same may be said of constipation, menstrual irregu- larities, and the like. The treatment at the time of an attack will depend somewhat on the part of the body where the disease is manifest. If the dermal surface of the body be involved, the most satisfactory plan of treat- ment is to keep the patient quiet, in an equable tempera- ture, and apply dry heat to the swelling ; and if there be much uneasiness or restlessness, a mild anodyne should be administered. Compression by means of a bandage or a Gamgee dressing is occasionally of benefit. When the disease manifests itself in the mucous membranes the treatment is entirely symptomatic. As has been before said, when the gastro-intestinal symptoms are prominent, morphia fulfils two conditions: it relieves the severe 43 Ang.-Neiiro. W de m a. Arsenical Paralysis. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. pain and distention, and checks the vomiting for the time being. When the disease shows itself in the throat and larynx, it will occasionally be necessary to scarify and sometimes, but rarely, to perform the operation of laryngotomy. The use of electricity, although recom- mended, has not been attended with any better success than has followed the employment of the other remedies mentioned. Bibliography. Bawke: Berlin, klin. Wochensehr., February 8, 1892. Borner : Sainmluug klin. Vortrage von Volkman, No. 312. Castelli: These de Lyon, 1886. Cenas: La Loire Med., December 16, 1886. Charcot: Collected Works. Paris. 1885. Chauvet : Soc. Med. des Hopitaux, February 8, 1884. Collins : American Journ. Med. Sciences, December, 1892. Conty : Gaz. Hebdomadaire, 1886, p. 579. Conty : These de Paris, 1884. Courtoix et Suflit : Annul de Dermatol, et de Syph., Paris, 1880 ; 2e ser., x., 859. Crocq: Presse Med. Beige, vol. xliii., p. 298. Cuntz : Archiv. f. Heilkunde, vol. xv. Curtis: Boston Med. and Surg. Journ., 1880, xi., 556. Dinkelacker ; Ipaug. Dissertation, Kiel, 1882. Dubosquet: Paris Med., May 15, 1886. Edtvards: Internal. Med. Mag., vol. i., p. 242. Elliott: Journ. Cutan. and Genito-urin. Dis., 1888, vol. xix. Elliott: N. Y. Med Rec., 1891, p. 559. Falcone : Rivista Veneta, Venezia, 1887, vii. Falcone : Gaz. Degli. Ospitali, February 24, 1886. Goltz : Deutsche Med. Wochenschrift, 1880, No. 17. Graham : Canadian Practitioner, 1885, p. 33. Hartzell: Univ. Med. Mag., 1890. Hehn : Centralbl. f. d. med. Wise., 1873, p. 625. Henoch: Berlin, klin. Wochensehr., 1874. p. 641. Holmes: Bost. Med. and Surg. Journ., 1891, cxxix., p. 481. Jamieson : Edinburgh Med. Journ., 1883, p. 1090. Johnston : Archiv. fiir Kinderheilkunde, vii., p. 126. Juler: Cincin. Lancet, 1878. p. 30. Kirsch : Inaug. Dissertation, Greifswald, 1889. Klemensiewicz: Silzb. d. k-k. Akad. d. Wiss., July, 1887, Ixxiv., No. 111. Lacher: Berlin, klin. Wochensehr., 1885, No. 40. Landon : Berlin, klin. Wochensehr., January 12, 1880. Lawinski : Berlin, klin. Wochensehr., 1885, No. 31; Ibid., p. 537. Leyden: Zeitschr. f. klin. Med., vol. iv., p. 605. Lovett: Boston Med. and Surg. Journal, 1890, cxxiii., p. 409. Mackenzie: Trans. Path. Soc., London, xl., 403. Malgaine : Gaz. des Hopitaux, 1840. Matas: New Orleans Med. Journ,, October, 1887. Mathieu et Weill : Archiv. gen. de Med., 1885, vol. civ.-clvi. Milton : Edinburgh Med. Journ.. 1876, p. 513. Mixon : Med. Times and Gaz., February 9, 1878. Mumford : Boston Med. and Surg. Journ., vol. exxiv., p. 235. Negel: Prog. Med., 1884, p. 846. Orville-Horwitz: Med. News, April 10, 1892, p. 432. Osler: Amer. Journ. Med. Sci., April, 1888. Quincke : Monatschr. f. prakt. Derm., 1882, i. Rapin : Revue med. de la Suisse Romande, December 15, 1886. Riehl: Wien. Med. Presse, 1888, xxix., 353. Rott: Berlin, klin. Wochensehr., 1874, No. 9. Simon: Johns Hopkins Hosp. Rep., 1891, p. 339. Smith : Medical News, 1889, liv., p. 320. Sotnitschefsky : Virchow's Archiv., Ixxvii., p. 85. Starr : N. Y. Med. Journ., September 17, 1892. Strobing: Zeitschr. f. klin. Med., ix.. p. 389. Sydenham: Lectures. London. 1848. Troisier: Prog. Med., 1884, p. 3. Unna: Monatschr. f. prakt. Dermatol., viii., 446. Verneuil et Potain : Archiv. gen. de Med., 1885, p. 656. Vulpian : Lejons sur les Vasomoteurs. Weill : These de Paris, 1885. Weiss : Wien Med. Wochensehr., 1882, No. 14. Widonitz: Jahrbuch f. Kinderheilk., 1889, N. F., xxix., 388, xxv., p. 252. Wilcox : St. Louis Med. and Surg. Journ., vol. Iv., p. 273. Joseph Collins. ANISIC ACID, an isomer of methyl salicylic acid, is obtained by the oxidation of oil of anise. It crystallizes in brilliant, colorless crystals, slightly soluble in hot water, very soluble in alcohol and ether. It forms alka- line salts, which are freely soluble. It possesses antiseptic and antipyretic properties re- sembling those of salicylic acid, but it is free from any of its disagreeable effects. Locally applied as a powder to wounds or ulcerating surfaces it checks the secretion of pus and hastens re- pair. Internally, the anisate of sodium is employed in all conditions in which salicylic acid is used. As an anti- rheumatic it is highly recommended. It is easily taken, and may be administered in doses similar to those of salicylate of sodium. Beaumont Small. (SUPPLEMENT.) ANTHRAX, SYMPTOMATIC. The bacillus of symp- tomatic* anthrax was first obtained, in cultures which were known to be absolutely pure, by Kitasato. At first he was able to cultivate it only in a liquid medium made of the flesh of a susceptible animal f-i.e., bouillon made from a guinea-pig. Subsequently ; he was able to culti- vate the organism in ordinary neutral agar and gelatin. In order to obtain pure cultures he resorted to a special form of apparatus, also used in isolating the bacillus of tetanus (see under the heading Tetanus). The bacillus is an exquisite anaerobe. It will grow in deep stabs, in tubes containing a large amount of agar or gelatin, to within a finger's breadth of the upper surface. The col- onies in gelatin are irregularly spherical, w ith a warty surface. Subseqeuntly they have a ray-like zone of liquefaction and a dark centre. There is a production of gas, with a peculiar penetrating odor. Spores are formed at the temperature of the human body in thirty hours. These are oval, and have one side somewhat flat- tened, and form near to, but not quite in, the centre of the rods, which become spindle-shaped. Addition of grape-sugar, eikonogen, or other reducing agents to cult- ure media, helps the growth of the organism. The bacilli have independent motion, but only when they do not contain spores. They do not lose virulence on solid media, but they do in guinea-pig bouillon. Mea.de Bolton. ANTOGAST. A thermal and climatic station in the Black Forest, Germany. Location.-Antogast is situated in a narrow valley of the Black Forest of Baden, about 1,500 feet above the level of the sea. Fine promenades in the surrounding pine woods make the place attractive. The springs are alkaline chalybeate ones, containing traces of arsenic. The waters are cold and pleasant to the taste. Access.-By omnibus from Oppenau, a station on the Oppenweier branch of the Baden Railroad. Indications.-The waters are used both for baths and internally in cases of anaemia, neurasthenia, catarrhal affections of the organs of digestion and respiration. The Kuranstalt is equipped with modern appliances for the various hydrotherapeutic procedures. Season, June to October. Accommodation.-There is a new7 Trinkhalle and some small hotels, and a number of lodging-houses. It is a quiet and cheap resort, but quite popular. Edmund C. Wendt. APOCODEINE is a reddish amorphous powder, almost insoluble in water, soluble in alcohol, ether, and chloro- form. The hydrochlorate of apocodeine is a grayish amorphous powder, very soluble in water. It is ob- tained by heating hydrochlorate of codeine for fifteen minutes with a concentrated solution of chloride of zinc, at a temperature of 170° or 180° C. On cooling, a yellowish-brown mass separates from the liquid. This is drawn in thin, silk-like threads, and is almost pure hydrochlorate of apocodeine. The preparation is easy, and there is yielded a much greater product than the morphine salt; it is also much more stable. The base may be obtained by precipitating it from a solution by the addition of carbonate of sodium and extracting with ether. The reaction of reagents upon apomorphine and apo- codeine is almost identical, with the exception that the blood-red coloration produced by nitric acid is much more permanent with the latter. This drug has recently been introduced as an expect- orant and emetic. The dose is from to 1 grain. It is recommended in the treatment of chronic bronchitis, croup, whooping-cough, etc. A one or two per cent. * Read symptomatic anthrax for sympathetic anthrax wherever this latter occurs in the article Scbizomycetes. See this Handbook, vol. vi., p. 336, 2, eleventh line from the bottom. t S. Kitasato : Zeitschrift fiir Hygiene, vol. vi., 1889, p. 105, Uber den Rauschbrand-bacillns und sein Culturverfahren. J Ibid., vol. viii., 1890, p. 55. 44 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Ang.-Netiro. (Edema. Arsenical Paralysis. solution may be prepared, and from five to ten minims administered. It acts rapidly, and the effect is pro- longed. It may also be used hypodermically. Beaumont Small. ARISTOL is the registered trade name of dithymol- diiodide. It is prepared from thymol, C10H13HO, by sub- stituting two molecules of iodoxyl, IO, for two of hy- droxyl, HO. It contains forty-five per cent, of iodine. A moniodid and a triiodide have also been prepared. The latter has been called annidalin, and is used for the same purposes. Aristol may be made as follows: 1J drachm each of thymol and caustic soda and 1| drachm of potassium iodide are gently heated with enough dis- tilled water to make 1 ounce 4| drachms, and then cooled. This solution is added to eight ounces of a con- centrated solution of hypochlorite of soda and agitated. The solution is then filtered and the precipitate washed with water and dried. It is a light, reddish-brown powder, with a very faint odor, insoluble in water, slightly soluble in alcohol, soluble in ether, collodion, and oils. It should be care- fully preserved, as it is decomposed by light and heat. Therapeutically it is recommended for the same pur- poses as iodoform, but it is less active. Its advantages are that it is devoid of the disagreeable odor, and does not possess the toxic properties of the latter drug. It has been used in the treatment of eczema, psoriasis, scabies, chronic inflammation of the mucous membranes of the nose and pharynx, erosions of the os uteri, condy- lomata, granulating wounds, and ulcerating surfaces. It possesses the power of causing rapid cicatrization in a marked degree, and has proved of greatest service in the latter class of cases, particularly in the treatment of varicose ulcers. In lupus, tubercular and syphilitic ulcerations it was supposed to possess specific powers, but experience has not supported this view. The powder is best applied by dusting on the part, or by insufflation ; it may be used as an ointment, one part in ten, or dissolved in ether or collodion. As it is partly eliminated through the lungs, it has been used in phthisis by hypodermic injections of a one per cent, solution in sterilized oil of sweet almonds. It is said to lessen the cough and night-sweats. Beaumont Small. ARSENICAL PARALYSIS.-Paralysis from arsenical poisoning has received little attention in treatises on nervous diseases. Most classical works on the subject do not even mention it. The most recent text-book on medicine, by Osler, gives it a short description. And yet this, though not the commonest symptom of arsenical poisoning, is not very rare. It was spoken of by Albani in the thirteenth century, and by others at an almost equally early period. Dana,1 in giving the bibliography of this subject, cites more than one hundred articles published prior to 1887. Since Dana's publication I find about fifteen further articles, simply reports of cases, or more or less extensive dissertations on the subject. The absence of pathological data and the uncertain nosolog- ical position of the disease in part account for its ap- parent neglect. The last few years have partly removed these difficulties. Etiology.-The largest number of cases of arsenical paralysis are due to acute poisoning, the poison being taken either by the mouth, designedly, or accidentally, or introduced into the system by external applications, as in the use of arsenical plaster. In all such cases the paralysis develops subsequently to the appearance of or- dinary symptoms of acute arsenical poisoning. Paralysis from chronic arsenical poisoning is less frequent, but this statement must be accepted as applied to recognized arsenical paralysis, for doubtless many cases of chronic arsenical paralysis occur which are not recognized as such. The largest number of cases of paralysis from chronic poisoning are due to the internal administration of the drug. In some instances the quantity taken was quite small. Semple2 reports the case of a boy of six, suffering with chorea, in whom, after the use of from three to ten drops of Fowler's solution three times a day for one month, there were brown pigmentation of the body, paralysis of the legs, chiefly of the toes and feet, with reaction of degeneration in the affected muscles and loss of the knee-jerks. Two months after the with- drawal of the drug the pigmentation had disappeared and the paralysis was better. A case of Hastings's,3 who had taken three to five drops of Fowler's solution for some weeks, had burning pain in his feet and partial paralysis of the four extremities. A case of Hooper's3 took five drops of Fowler's solution three times a day for six months. The drug was then discontinued on ac- count of ophthalmia, but nevertheless the patient began to suffer with headaches and progressive paralysis, and died within a few months. Similar cases of paralysis- following medicinal doses of arsenic have been reported by Jones,3 Gaillard,3 Dana,1 and Ferguson.4 These are the only cases in which I have found decided paralytic manifestations reported after the internal administration of medicinal doses, though less marked nervous disturb- ances are more common. It is noteworthy'that in these- instances such marked disturbances followed the ad- ministration of comparatively small quantities, whereas this remedy is so commonly used, often in large doses- and for long periods, without toxic manifestations, and among the peasantry of Styria, who are accustomed tu take arsenic regularly and continuously in quantities or- dinarily toxic, no case of paralysis has been recorded. We are, therefore, justified in assuming that, in such in- stances, there is either some special predisposition to the symptoms manifested, or a special idiosyncrasy to the drug.* Other modes of chronic poisoning are from the external use of arsenic in salves, baths, etc., or contact with the poison as used in the arts and found in many fabrics employed in clothing, wall-paper, carpets, artifi- cial flowers, etc. Barton5 reports two cases, husband and wife, with almost typical histories of paralysis fol- lowing acute poisoning - first the gastric symptoms, then pains and paralysis of the four extremities-where the man had for seven years been rubbing a mixture of four parts of arsenic to three parts of plaster-of-Paris- into the skins of animals and birds, and the wife cleaned the room twice a week. Similar cases from dealing in stuffed birds, from working with arsenical draperies, or living in rooms where there were draperies or wall-paper containing arsenic, are recorded by Seeligmueller,8 M'Clure,1 Holm,8 and Malmsten.8 Symptomatology.-The symptoms vary to some ex- tent, according to the amount of arsenic taken and the manner of poisoning, that is, whether it were acute or chronic. But where well-marked paralyses have devel- oped there is usually considerable uniformity in the clin- ical pictures presented. In cases of acute poisoning the- paralytic manifestations appear shortly after the disap- pearance of the severe gastro-intestinal disturbance. Pa- ralysis of twenty-four hours' duration immediately after the ingestion of the arsenic has been spoken of, but must be rare or escape detection. The onset of the paralysis occurs usually from several days to several weeks after the poison has been taken. It is commonly preceded by sensory symptoms, tingling, numbness, intense pains, etc. The paralysis itself begins more or less gradually. Not uncommonly its onset is not observed, but when tbe- acute symptoms have subsided and the patient attempts to get out of bed it is found that he cannot walk or cannot hold anything in his hands. Occasionally the paralysis is complete, or at least no longer progressive, at an early period, but usually some weeks elapse before it has reached its greatest intensity. Almost always, when ob- served from the beginning, it has been found to com- mence at the distal ends of the extremities, the fingers and toes-usually first in the lower extremities,-and * Jaccoud (Brissaud, Des Paralysies toxiques, 1887) says alcoholic ex- cesses constitute one of the most active predisposing causes of arsenic- poisoning, but in the study of the literature I have found no cases to substantiate this view. According to Putnam, while arsenic is usually eliminated in from twelve to twenty days, there are cases in which it is found months after it had been taken. Possibly it is this slow elimina- tion that favors chronic poisoning from ordinary medicinal doses. 45 Arsenical Paralysis. Arsenical Paralysis. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) thence extends upward. The parts below the knees and elbows are most profoundly paralyzed. Some writers state that the paralysis does not extend above the knees and elbows, but, possibly, in all cases where the paral- ysis has been profound, other muscles, especially of the thighs, have been at least paretic. I shall report a case below where the legs were completely paralyzed and even the muscles of the trunk were affected. The ex- tensor muscles-the radial group in the upper, and an- terior tibial group in the lower, extremities-are as a rule most profoundly affected. When the paralysis is complete the paralyzed muscles are quite flaccid, and we find wrist-drop, foot-drop, etc. At a later period there are very frequently contractures, more or less strong, affecting particularly the least paralyzed muscles. Tremor, often fibrillary in character, is not infrequently observed in the affected muscles. The paralysis just described, affecting the four extremities, the lower more than the upper, is that usually found. In rare instances it is otherwise distributed ; sometimes in hemiplegic, and more rarely in monoplegic form. In almost all in- stances there is a great loss of flesh, a general wasting, but in addition there is special and pronounced atrophy of the paralyzed muscles. The electrical reactions are those of peripheral paralysis. The reaction of degenera- tion-no muscular contraction when either current is ap- plied to the nerves, or when the faradic current is applied to the muscles, contraction of the muscles, but a reversal of the normal formula, when the galvanic cur- rent is applied to them, that is, the anode closure con- traction occurs more readily than the kathode closure contraction, and the resulting contractions are tardy, sluggish, not the quick, lightning-like contractions of normal muscles-becomes more or less pronounced a few days, or a few weeks, after the occurrence of the paral- ysis. At a later period, if the paralysis be profound, all electrical reactions may cease. In some instances slight changes in electrical reactions may be observed before there is any manifest paralysis, particularly that it requires a stronger faradic current than usual to pro- duce muscular contractions. In lighter cases such elec- trical responses, especially in the anterior tibial group of muscles, may be the only indication of incipient paral- ysis. The sensory symptoms are at times even more pro- nounced than the motor paralysis. These symptoms are paraesthesiie of various kinds, tingling, numbness, " deadness," coldness, etc. ; pains, tenderness, and anaesthesiae. As a rule the tingling and numbness, and very frequently the pains, precede the paralysis. The pains are often intense and the most distressing element in the disease. They are usually described as burning, cutting, boring, etc., and are often accompanied by sud- den starts, cramps, or spasmodic movements of many muscles of the body. They are usually more or less par- oxysmal, and are likely to be worse at night and keep the patient awake. They occur most frequently in the feet and hands, sometimes appear to be in the joints or bones, and occasionally in the course of the nerves. Tenderness of the affected muscles is also a common and prominent symptom. The tenderness may be so great as to make the handling of the patient extremely painful, and, on account of the suffering produced, electrical ex- aminations become very difficult. In some instances the tenderness is observed to be in the course of the nerves, but generally it is so diffused that it is hard to state that it is especially over the nerve-tracts. Often hypenesthesia or hyperalgesia is observed, although this may be only an expression of the great tenderness. Loss of, or Impaired sensation, anaesthesia, is also a common symptom. It is found most frequently in the feet and hands, and especially the finger-tips and toes or soles of the feet, although it corresponds somewhat to' the extent of the motor paralysis. It has been found to follow the distribution of certain nerves. For instance, in a case of Seligmueller's it was limited in the upper extremities to the distribution of the median nerves. Probably in all cases where there is extensive paralysis, anaesthesia oc- curs, but it is likely to disappear much sooner than the paralysis, so that it may be reported as absent, when the patient is seen some time subsequent to the incep- tion of the nervous symptoms. Sometimes there is only loss of cutaneous sensation-sensation of touch is im- paired and the patient cannot feel things with his fin- gers, does not know that he is holding something in his hands, etc. With the loss of tactile sensation there is likely to be loss of the sensation of temperature and pain. Sometimes loss of muscular sense is very marked, the patient does not know the position of his limbs, etc. In all cases of marked paralysis, the patellar tendon re- flex, if spoken of at all, was reported to be absent. It was also found to be absent, or lessened, when the para- lytic manifestations w-ere not very pronounced. When once lost, the knee-jerk is slow to return. Various vaso- motor and trophic changes are common, as slight oedema, particularly of the feet, profuse perspiration, loss of the nails and hair, and desquamation of the epidermis. Not rarely there is a brownish pigmentation of the skin ; even herpes zoster has been observed. Muscular atro- phy has already been mentioned. The clinical picture would not be complete without the statement of some symptoms that are as invariably absent. That is, the cranial nerves are never affected, there is no decubitus, and the functions of the bladder are always found to be intact.* As has already been stated, usually several days or several weeks elapse before the disease reaches its acme. Then, after an interval, which may be of onjy a few days' duration, but sometimes runs into months, the pa- tient begins to improve. The anaesthesia almost always begins to disappear before the motor paralysis. It dis- appears in the reverse order of its appearance ; first from the trunk and the upper part of the extremities, remain- ing longest in the fingers and toes. The motor paralysis disappears in the same manner-first in the upper part of the extremities, then in the muscles below the knees and elbows. The flexors usually improve more rapidly than the extensors, leaving the only motor symptoms manifested in slight cases, paralysis of the extensors of the feet and toes, and of the extensors and small muscles of the hand. At a late period there are liable to be con- tractures in the still paralyzed parts. The pains also become modified in intensity after the lapse of some time, but unfortunately they are likely to persist with a greater or less degree of severity throughout the whole course of the disease. The vaso-motor symptoms, oedema, pigmentation of the skin, etc., usually disap- pear at a comparatively early period. The whole dura- tion of the disease is extremely variable. Alexander puts it as from eight days to a number of years. It may be stated in general that mild cases usually get well within six months, possibly in a few months, whereas in severe cases one or two years elapse before there is complete re- covery. or, in those cases in which a cure remains incom- plete, before there is a definite cessation of improvement. Dana has described a form of arsenical paralysis as pseudo-tabes, in which ataxic manifestations are promi- nent. In a few cases the symptoms of motor incoordina- tion are more prominent than those of paralysis, so that to these, as there are also sensory symptoms, the term pseudo-tabes seems quite appropriate. But ataxia is spoken of in many cases after the motor paralysis is beginning to disappear, when it is really the remains of the paralysis. In fact, a degree of paralysis has been, or- is, present in all these cases of pseudo-tabes, distinguish- ing it in this respect from true tabes, but it may be in so far deserving of a special name as the motor incoordina- tion may, in part at least, be due to sensory disturbances, impaired muscular sense, etc., which doubtless in part explain true ataxia. The disease, as so far described, is that following acute arsenical poisoning. In some cases following chronic poisoning the symptoms are much the same, only the * Optic neuritis is spoken of in two cases, that of Dana (Brain, Jan- uary, 1887) and of DaCos^a (Medical Times, 1881. p. 385). Putzel (Medical Record, June 2, 18S8) merely mentions, without further de- tail, that he had seen a case of acute arsenical paralysis in which there was paralysis of the bladder and rectum. 46 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Arsenical Paralysis. Arsenical Paralysis. ■onset is likely to be less sudden and the symptoms less profound. In other chronic cases the symptoms are very slow in appearing, and may have been in part masked by the symptoms of gastric irritation. The pains are likely to be proportionately greater, and the paralysis slight in degree. But, even when the paraly- sis is slight, the changes in the electrical reactions are likely to be found. In such instances the motor manifes- tations may be rather like those of ataxia than of paraly- sis. Sometimes a sense of profound prostration is the only indication of motor impairment. There is another class of cases in which the poisoning appears to have been exceedingly slow and insidious, the symptoms usually very obscure, the cause arsenical wall-papers or the like. Among the symptoms in these instances are, gastro-intestinal irritation, neuralgia, head- ache, insomnia, general prostration, mental depression, impairment of memory and mental endurance, and epi- leptiform convulsions. As this article is devoted to arsenical paralysis no further attention will be here given to this class. In order to illustrate the picture of arsenical paralysis, and inasmuch as such cases are comparatively rare, I shall give the history of two cases which have come under my own observation. The report of the first, of which I have few notes, will be necessarily fragmentary. A drayman, seventeen years of age, on September 8, 1886, ate by mistake a piece of bread on which " Rough on Rats " had been spread. For four days he had acute gastro-intestinal symptoms, vomiting, prostration, etc. A few days afterward he was again driving his team, though he was feeling very weak. Between two and three weeks after the arsenic had been taken he observed that his legs were getting weak, and some time later the same condition was observed in the arms, though he worked for a week after these symptoms began to ap- pear. Six weeks after the poisoning he was unable to walk alone ; there was paralysis of muscles of the leg, ■especially of the dorsal extensors of the feet and toes, paralysis of the extensors of the fingers, and impaired •cutaneous sensation in the same parts. He suffered with severe pains in the arms and legs, and there was exces- sive tenderness over the paralyzed muscles. He also complained of a sense of numbness and tingling in his extremities. His hands felt numb ; he could not tell by the sense of touch that he had anything in his hands. Patellar tendon reflex absent on both sides. The par- alyzed muscles did not respond to the faradic current. About a month later he had improved so much that he was able to walk without assistance. His own statement is that he began working nine months after he had been poisoned, but he thinks it was fully a year, or a year and a half, before he had regained his full strength. At present he is again acting as drayman, does heavy work, lifts heavy loads, showing a full restoration from the disease. Its only traces are that he becomes fatigued more easily than before the accident, and is somewhat constipated, which had not been his former habit. The second case, a man, thirty-five years of age, con- tractor, on account of financial losses, took Paris green with suicidal intent. He suffered for several weeks with violent gastro-intestinal disturbance, and six days after the poisoning he became violently maniacal, and remained so for several days. It was observed when he got out of bed, several weeks after he had taken the poison, that he was weak on his legs, and that his hands trembled. One week before I saw him, which was seven weeks after the poisoning, he became bedridden on account of his inability to walk. He began suffering with severe pains in his arms and legs, even before the paralysis was observed. When I saw him, June 6, 1892, there was absolute paralysis of the feet and ankles, muscles flaccid, foot-drop, considerable weakness of the extensors and flexors of the knee, and some weakness, though less, in the hips. The upper extremities were quite paretic ; fingers and hands almost paralyzed, pronation and su- pination very feeble, the flexors and extensors of the el- bows also much weaker than normally, and the muscles of the shoulder slightly paretic. (SUPPLEMENT.) There was more or less anaesthesia in the paralyzed parts, most profound in the legs. Over the latter firm pressure could not be felt, as far as the gluteal region. A pin prick was recognized but was not painful. In the upper extremities anaesthesia was most pronounced in the hands and back of the forearms. There was con- siderable tremor of the fingers on attempted movement. Patellar tendon-reflex absent on both sides. All the muscles respond to the faradic current, but the left peroneal group requires a stronger current than nor- mally. There was considerable tenderness over the left calf and over both crural nerves. He suffered intensely with pains, either burning or boring in character, some- times feeling as though the limbs were in a vise, the pains being often attended with starts and spasmodic movements. The pains were worse at night and kept him awake. The muscles of the trunk seemed normal, and sensation was normal in the same part. No symp- toms on the part of the cranial nerves, bladder, or rec- tum. The optic disks were normal. June 17, 1892.-No pow er in the legs whatever. Pa- resis of the muscles of the trunk and slight anaesthesia. Upper extremities weaker than at last note. Some oedema of the right fingers. The pains appear to be worse and are often attended by spasms, opisthotonic in character. A great tenderness over all the paralyzed muscles and joints, movements of the joints excruciatingly painful. This tenderness makes the electrical examination very painful and difficult. Only the left peroneal group of muscles was examined. They do not respond to the faradic current; the anode closure contraction obtained before the kathode closure contraction. June 28th.-Sensation decidedly better, pains and motor paralysis unchanged. July 12th.-Sensation much improved. He has some power in the knees and hips, there is increased strength in the upper extremities, and the pains are less severe. On the date of this writing, November 26th, a little over seven months after the date of the poisoning, cuta- neous sensibility is normal, or nearly so, everywhere. The left arm and hand have almost regained their nor- mal strength. In the right upper extremity the fingers, especially the extensors, are quite weak ; muscles of the elbow have a fair amount of strength, though weaker than normal; those of the shoulder are more paretic than those of the elbow. In the lower extremities there is some power in the muscles of the hips and knees, but very slight, while the ankles and feet are still completely paralyzed, and the feet are held rather firmly in the position of talipes equinus. There is still a little tender- ness about the right upper extremity, especially over the muscles of the hand, far more over the muscles of the legs, though the latter does not compare in intensity with what it was some months ago. The pains are also far less severe and less frequent. They are still worse at night, and often keep him awake. Pathology.-Leyden in his classical work on "Dis- eases of the Spinal Cord," published in 1875, spoke of neuritis as the cause of arsenical paralysis. Subsequent- ly a number of writers (DaCosta, Mills, Seguin) attribut- ed it to myelitis. Of late years there has been a certain unanimity of opinion that neuritis is the real pathology, an opinion with some experimental and post-mortem ob- servations to substantiate it; but quite recently in one case decided changes were found in the central nervous system, and it is yet to be seen to what extent the views on the subject will thereby be revolutionized. The experimental investigations in this direction are not all in accord. Popow, experimenting upon dogs, produced acute or chronic poisoning by means of larger or smaller doses of arsenic, and found thereafter my- elitis, especially of the anterior cornua. Kreyssig and Schulze, repeating Popow's experiment, did not find any pathological changes in the cord. Some control experiments, showing how easily methods of harden- ing and staining may give the appearance of morbid changes in nerve-tissues, lead them to infer that Popow's description was, chiefly, of such artificial products. More recently, Alexander experimented on rabbits. After pro- 47 Arsenical Paralysis. Artificial Feeding. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) ducing paralysis of the posterior extremities by means of arsenical poisoning, he found the cord to be normal, while there was extensive neuritis and primary disease of the muscles. He attributed the inflammation in mus- cles and nerves to the occlusion of innumerable capilla- ries, which he supposed were primarily attacked by the poison. Two post-mortem examinations in man have been reported.* The first was a case of Ferguson's.4 The patient, a consumptive, took for a lengthy period Fow- ler's solution, twenty to thirty drops three times a day, which had been recommended as a cure for consump- tion, and was not discontinued when diarrhoea and headache came on. When seen by Ferguson the face was brown and mottled, there was impairment of cuta- neous and muscular sensation, tenderness and intense pain in the legs, extending to other parts of the body ; the gait was paretic, the most marked paralysis being in the anterior tibial group of muscles, in which the re- action of degeneration could be obtained. She died shortly afterward of phthisis. At the post-mortem ex- amination evidence of neuritis was found in many of the peripheral nerves-the nerve-sheaths and connective tissue swollen and infiltrated, the medullary sheaths and axis-cylinders broken up-as well as marked degenera- tion of the muscles. In the very brief report there is also a simple statement of disorganized cells being found in the cord. The second case, the one above referred to as possibly having a revolutionizing effect on the present views of the pathology of this condition, is one of Er- licke and Rybalkin's,9 a man of fifty, who died twenty-six months after the arsenical poisoning. Shortly after the poisoning there was paralysis of the four extremities, and at the time of his death-due to a subsequent chronic lung disease-there were still paralysis and con- tractures in the hands and feet, attendant muscular atrophy, pains in the feet, and absent knee-jerks. The post-mortem revealed distinct changes in the anterior cor- nua throughout the cord-the morbid appearances not extending above the pyramidal crossing-especially in the cervical and lumbar enlargements, affecting both the nerve-cells and the fine net-work of fibres. There was a great reduction in the number of cells, both in the ante- rior cornua and in the area between the anterior and posterior cornua. The cells remaining were not nor- mal, their protoplasm was altered, and they were either rounded in outline, reduced in size, had fewer processes, or were without nuclei. Some cells had vacuoles in them, others contained leucocytes. The nerve net-work in the anterior cornuse was mostly replaced by fine neu- roglia. Of the nerves, only the radial and perineal were examined, and presented distinct evidence of neuritis. The nerves were found to contain normal and degen- erated fibres, as well as regenerated ones. The authors conclude that there was a chronic pathological process in both cord and nerves, and that it began about the same time in each. They suppose that the cause was, not the entrance of the poison into the cells, but the changes produced by the arsenic in the circulation and the blood. The clinical manifestations of arsenical paralysis, and it is chiefly upon these that the views of its pathology have hitherto been based,f point strongly to neuritis as the basis of the paralysis. The paralysis, evidently of a peripheral character, with rapid development of atrophy, and the reaction of degeneration, as well as the sensory symptoms, are very easily explained by neuritis. It is true that a poliomyelitis produces the same kind of paralysis, but the sensory disturbances cannot be ex- plained by poliomyelitis and scarcely by a more dif- fuse myelitis. The full restoration to health, as occurs in most instances, is altogether at variance with such an explanation, and the invariable absence of paralysis of the bladder and decubitus, symptoms so common in ex- tensive myelitis, is strong evidence that myelitis does not account for the symptoms. Furthermore, the occasional impairment of a single nerve, as anaesthesia limited to the area supplied by the median nerve, and the presence of herpes zoster, are proofs that neuritis must be present in such instances. In the foregoing is sufficient proof that there must be neuritis in these cases, but it does not fol- low that we have only neuritis. The post-mortem men- tioned, as well as some clinical data, indicates that there are, sometimes, at least, also changes in the cord, my- elitis. The clinical manifestations force the belief that neuritis is the chief and most extensive pathological con- dition, and largely the cause of the symptoms, but, it is not improbable that in those cases where there is per- manent paralysis there has been more extensive myelitis, which in itself has produced many, if not most, of the symptoms. In the case of Erlicke and Rybalkin, with such extensive changes in the cord, the permanent paral- ysis was greater than in any other case I have seen re- ported. In some cases of chronic neuritis it is probable that the latter is due to changes in the trophic centres of the cord, and, possibly, a similar relationship exists in many cases of multiple neuritis. As arsenical paralysis sets in, as a rule, a few weeks after the poisoning, and both the post-mortem examination of Popow above given, and the frequent occurrence of delirium soon after the poisoning, indicate that the central nervous system may be affected at a much earlier period, the thought occurs that the extensive neuritis in these cases may be really due to prior and slighter changes in the cord. With this view, morbid changes in the cord would be the rule, but they would, usually, be slight and their effects transitory. But it is more probable that so far as the two conditions, neuritis and myelitis, occur together, they are independent of one another, and each due to the circulatory and blood disturbances produced by the arsenic. We may then summarize the foregoing by saying that neuritis is the chief pathological condition producing arsenical paralysis, that where there is permanent pa- ralysis there is more or less extensive myelitis, while in curable cases, if myelitis be at all present, it must be of a mild grade. Diagnosis.-When it is known that the patient was poisoned with arsenic, as is usual in acute cases, the cause of the resulting paralysis is apparent. When there is no such knowledge the history of severe acute gastro- intestinal disturbance preceding the kind of paralysis just depicted should be almost enough to make the di- agnosis certain. The picture of the paralysis is almost characteristic : the four extremities usually affected-the lower more frequently and more extensively,-the paraly- sis being always greatest in the digital extremities and attended by atrophy and altered electrical reactions, the absent knee-jerks, the intense pain and extreme tender- ness, and the absence of bladder symptoms and decubi- tus. When the paralysis is less marked, and the whole ar- ray of symptoms less conclusive, the greater prominence of the sensory symptoms and the presence of altered electrical reactions in the slightly paralyzed muscles-in this instance it requires a very careful examination to reveal such reactions-may arouse a suspicion of the true condition. The cases with ataxic gait may resemble locomotor ataxia, and Seeligmueller mentions a case of his own which was falsely looked upon as one of locomotor ataxia. The severe pains and lost knee-jerks heighten the resemblances of the two diseases. But with careful examination such errors will rarely occur, for it will usu- ally be found that the difficult gait is rather paretic than ataxic, and, furthermore, symptoms on the part of the- bladder and the eyes, such common and early manifesta- tions in locomotor ataxia, are absent. * A case of Popow's (Virchow's Archiv, cxii.. 2) should be mentioned, though not strictly belonging here, as the man died thirty-two hours after the poisoning. The vessels of the cord were distended, there were numerous smaller or larger hemorrhages into the cord, and, in some parts, plastic exudation, the changes being chiefly in the cervical and dorsal regions, especially their central parts. Some cells were clouded, their nuclei indistinguishable, and were nearly or altogether without processes. t The similarity of the clinical picture to that of alcoholic neuritis has also furnished a strong ground for pronouncing this neuritis. But it has recently been denied that all the lesions in alcoholic paralysis are periph- eral ones. 48 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Arsenical Paralysis. Artificial Feeding. In cases of chronic poisoning the detection of arsenic in the urine may assist materially in diagnosis. In acute cases the arsenic has usually been eliminated before or soon after the paralysis appeared. Prognosis.-Mild cases may get well in a few months, though rarely less than six, but when there has been pro- found paralysis recovery cannot be expected in less than one or two years. The prognosis is always favorable in so far that most cases recover, and all, if they survive, improve very much, but there is prevalent a too favorable opinion of the curability of the disease. For instance, Dana says almost all cases recover. I have carefully examined all the reports of cases made in recent years ; twenty-two in number. Of these, two died, two recovered, and the other eighteen were still uncured at the time of the re- ports, from two months to several years after the incep- tion of the paralysis. It may be assumed that of those reported at an early period most, or all, recovered. But a number were reported after more than a year had elapsed, and in four cases-those of Putzel,11 Peterson,10 Erlicke and Rybalkin9-after a lapse of two years or more, paralysis, more or less extensive, remained, indi- cating permanent impairment. If we can draw any conclusions from such small num- bers we may say that in twenty per cent, of the cases, or more, there will not be full restoration to health. I have already ventured the opinion that in the latter cases my- elitis is present. Treatment.-The first object must be to eliminate the arsenic from the system as rapidly as possible, for which purpose iodide of potassium seems to promise most, and has been almost universally used in such cases. Only moderate doses are indicated. Leyden suggests warm and sulphur baths. For the pains, often excruciating, opium or morphia is demanded. Further than this the indications are, the toning of the general system-for poor nutrition and great prostration are rarely missing-by careful feeding, strychnia, iron, and the direct treatment of the paralysis by electric- ity, massage, counter-irritation, etc. It can scarcely be doubted that in the most cases the tendency is to recov- ery, and the patient gets well quite irrespective of treat- ment. Philip Zenner. 1 Bram, January, 1887. 2 The Lancet, June 14, 1887. 3 Quoted by Putnam, Boston Medical and Surgical Journal, July 5, 1888. 4 Canada Medical and Surgical Journal, July, 1887. 6 The Lancet, July 19, 1890. 6 Dent. Med. Wochensch., 1881, p. 217. 7 The Lancet, June 22, 1889. 8 Quoted by Seeligmueller. 9 Archiv f. Psych, ii Nervenkr., xxiii., p. 861. 10 Medical Record, August 4, 1888, and personal communication. 11 Medical Record, June 2, 1888. ARTHRITIS DEFORMANS. In the differential diag- nosis it is important to keep in mind that this disease, beginning its destructive work with the articular carti- lage, and progressing without suppuration, will lead to gradual but very considerable diminution of the articu- lating surfaces, and to osseous proliferation with ex- crescences at the periphery of the joint. The form and shape of the affected joint, particularly of the caput fe- moris, will consequently be considerably altered, flattened sometimes like a mushroom, but the mobility is generally not abolished, and anchylosis, as we see it in certain cases of chronic rheumatism, does not occur. While at the commencement of the disease it will often be difficult to distinguish the same from chronic rheumatism, a correct diagnosis will be obtainable later on. Arthritis urica, real gout, which produces alterations of the small joints of the hands and feet, similar to those made by arthri- tis deformans, has its periodical, often intensely pain- ful, paroxysms, quite different from the mild exacerba- tions of arthritis deformans. Aside from the great value of prolonged and often re- peated plain warm baths at home, or in thermal water- ing places, in the general management of the disorder, steam-baths, steam - douches, sulphur- and mud-baths may also be used. In overcoming or correcting and im- proving contractures and false positions, and relative im- mobility of the joints, it is well to employ massage and mechanico-therapeutics, the action of which may again be supported and maintained by orthopedic apparatus. Intercurrent exacerbations are to be treated by mild an- tiphlogistics and counter-irritants. In extreme cases of deformity the question of surgical interference, i.e., re- section of joint, might come up, but there is not as yet sufficient experience to serve as a guide in that direction. Leonard Weber. ARTIFICIAL FEEDING OF INFANTS. During the past few years the subject of the artificial feeding of infants has still claimed much attention from the profes- sion, both in Europe and in this country, and several distinct advances may be noted. The various lines of investigation mentioned in my previous article, Vol. VIII., had made us aware of many of the difficulties which lay in the way of obtaining a perfect substitute for mother's milk. Cow's milk, or some preparation of it, was universally regarded as the only efficient basis for a good working substitute, and it was hoped that the difficulties, which had previously been encountered in its administration, could now be overcome. At the date of the previous paper the situation might be briefly stated as follows : 1. Our more definite knowledge of the chemical com- position of the two milks enabled us to alter the substi- tute so as to render it the chemical analogue of mother's milk. 2. By means of the process of sterilization at the tem- perature of 212° F., we were able to secure a practically sterile food, and thus to avoid the introduction of myriads of bacteria, with all their poisonous possibilities, into the infant's stomach. 3. Our more exact knowledge of the capacity of the infant's stomach enabled us to regulate the proper amount of food to be given at a time, and thus to guard against the evils of over-feeding. Thus, theoretically, we appeared to be able to supply the infant with an ideal food, a close approximation in chemical 'composition to mother's milk, absolutely sterile, in proper amounts, and at sufficient intervals to insure due digestion and nutrition. In practice these measures, carefully carried out, yielded gratifying results in some cases, but in many others hopes were disappointed. Among those reporting results we may mention Dr. Koplik,1 of New York, who, with a large experience among dispensary patients, found milk thus prepared and sterilized of distinct benefit in acute cases, but was dis- appointed with the results obtained in chronic cases of gastro-intestinal disease. Dr. Davis,2 of Philadelphia, found nutrition under its use distinctly fail. Corroborat- ing this clinical experience were the results obtained by Dr. Leeds 3 from investigations in the laboratory on the changes produced in milk by the prolonged heat necessi- tated by this absolute sterilization. His results were stated as follows : 1. The starch - liquefying ferment, galactozymase, which exists in normal cow's milk in minute quantities, is destroyed when the heat rises much above 165° F. (75° C.). 2. A portion of the lactalbumin is coagulated, thicken- ing the milk and intensifying its colloidal properties. 3. The casein, after the action of the prolonged heat, is less readily coagulated by rennet, and yields only slowly and imperfectly to the action of pepsin and pancreatin. 4. The fat-globules are injuriously affected by this heat. The fat, to some extent, is freed, and, after stand- ing, small lumps of butter-fat are sometimes observed on the'surface of the milk ; while the portion not freed has a decidedly lessened tendency to coalesce. This is pos- sibly owing to the coagulated proteid matters attaching themselves to the minute fat-globules, thus preventing their coalescence. It was also found that when sterilized and unsterilized portions of milk were churned, and a note made of the time required to form appreciable 49 Artificial Feeding. Artificial Immunity. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) amounts of butter, the unsterilized yielded a larger amount in considerably less time than the sterilized. 5. Milk-sugar by long-continued heating is completely destroyed ; that it undergoes some change during the process of sterilization, is shown by a lessened dextro- rotatory power. It would appear, therefore, that milk sterilized for any prolonged period at a temperature of 212° F. must be regarded as distinctly less readily and less perfectly digestible than raw milk. The destruction of the galac- tozymase, the coagulation of the lactalbumin, and the alteration of the casein, so that it becomes more slowly acted on by rennet, all presumably diminish its digest- ibility by the gastric juice of the infant; while the changes in the fat-globules can be shown to interfere to a large extent with their digestion and assimilation. The question arose, therefore, whether it was not pos- sible to avoid the disadvantages of this prolonged and ab- solute sterilization, and yet obtain a practically sterile food, the importance of having such being recognized on all sides. This was answered in the affirmative by Dr. Leeds. He found that milk rendered feebly alkaline, and heated, as soon as received in the morning, to a temper- ature of about 155° F. (somewhat short of the degree of heat necessary to coagulate the galactozymase) is rendered practically sterile. " It is evident,'' he says, " in the first place, that no milk having an acid reaction is in a proper condition to be heated, because of the effect of acidity upon coagulation, and inasmuch as cow's milk, as deliv- ered to consumers, has usually developed a notable acidity, the addition of the requisite amount of a suitable alkali is the first point to be considered." By experiments he found that to neutralize this acidity it required about 2^ grains sodium carbonate, or 9 drachms ordinary lime-water, to the pint of milk. Even this appeared to limit the development of some of the bacteria. Dr. Leeds says : "On making gelatine-peptone cultures, one drop of the original milk yielded 400 col- onies of bacteria after five days' culture at, common temperatures, while the same milk rendered feebly alkaline with lime-water yielded only 250 colonies. In some other experiments that he quotes the result was even more striking. After the milk was thus rendered slightly alkaline he tried the effects of lower- temper- atures. It was found that such milk maintained at a temperature of 155° F. (68° C.) for an hour proved prac- tically sterile. Shorter periods were then tried, and an equally good result was obtained at the end of twenty minutes (only one to two colonies per drop). On cooling and diffusing the cream, which the heating had brought to the surface, the appearance and properties of the milk thus heated and prepared in nowise differed noticeably from raw milk. A difficulty arises in securing the proper amount of heat, if we are to have this degree of sterilization carried on in the household. At my suggestion, a series of experiments were made with milk contained in glass flasks and heated in an Arnold sterilizer. It was found that with the water in the sterilizer and the milk in the flasks at ordinary temperatures, on placing the sterilizer over an ordinary Bunsen gas-burner it took about twelve minutes for the milk in the flask to reach the temperature of 155° F. If now the gas be turned out, and the milk be left in the sterilizer for another ten minutes and then removed to a cool place, all the sterilization necessary will have been effected and none of the deleterious changes will have taken place. More lately, however, Dr. Freeman,4 of New York, has devised a very simple apparatus, by which the milk to be sterilized is immersed in water at the boiling-point, the amounts being so proportioned that as the temper- ature of the water is lowered the milk is raised to the necessary heat of 165° F. The apparatus consists of two parts, a pail for the water and a tray containing a set of zinc cylinders which are to hold the bottles of milk. The pail is a simple tin pail with a cover. On its side is a groove indicating the level up to which it is to be filled with water. The tray is made in two sizes; one which will hold ten six-ounce bottles, the other seven eight- ounce bottles. The first is suitable for infants below six months of age, the second for those older. The pail is tilled with water up to the groove, and placed on the stove to boil. The bottles are filled with milk and stoppered with a pledget of cotton, and then dropped into their places in the cylinders. Sufficient water is now poured into each cylinder to surround the body of the bottle. This is necessary for the conduction of the heat. When the water in the pail boils briskly, it is taken off the stove, and placed on a mat or table ; the lid is removed, the tray containing the bottles of milk is placed inside and the lid replaced. The whole is al- lowed to stand half an hour, after which the bottles of milk are to be taken out and cooled rapidly, either by placing them on ice in a refrigerator, or by standing them in cold or ice water, which should be changed occasion- ally as it becomes heated. Milk thus prepared shows no change for several days. Air. Dyer, a pharmaceutical chemist in this city, has made a sterilizer for me, according to these instructions, and, after careful experimentation to obtain the correct size, has furnished me with the following dimensions: The tin pail should be inches deep, 10£ inches in diameter, 5J inches to water-line. The zinc cylinders should be €4 inches deep, 2f inches in diameter. There are seven cylinders in the tray ; the bottles of milk hold eight ounces each. With the milk and the water in the zinc cylinders at a temperature of 65° F., the following is the memorandum of the temperatures obtained in this apparatus : In ten minutes the milk in the bottle reached the aver- age temperature of 164° F. ; in twenty minutes, 166° F. ; in thirty minutes, 164° F. ; in forty minutes, 161° F. ; in fifty minutes, 158° F. ; in sixty minutes, 154° F. Dr. Freeman in his paper says, " I have made a series of experiments at the Bacteriological Laboratory of the College of Physicians and Surgeons, to test the efficiency of this apparatus in the pasteurization of milk. Speci- mens of milk obtained from different sources and at dif- ferent times have been examined to determine the num- ber of bacteria contained in one cubic centimetre before and after pasteurization. And while the raw milk used contained from 8,000 to 230,000 to each cubic centimetre, the same milk after this pasteurization practically con- tained none." This process he finds quite sufficient to destroy most of the ordinary bacilli found in milk, and tubercle bacilli. He quotes Van Gruns as stating that it also kills the typhoid bacillus, the cholera bacillus, and the pneumococcus of Friedlander. It does not appear in any way to affect the milk. Dr. Rotch,® of Boston, has reduced the artificial feeding of infants to a still more exact system. As the result of much clinical experience he concludes that slight changes in the percentages of the three elements of milk of which we have the most accurate knowledge, namely, the fat, sugar, and albuminoids, are of real practical value in managing the digestion and nutrition of the infant. Infants, like adults, require special modification in their food to suit the particular digestion of the individ- ual. To prove this he presented the analyses of several human milks. In these analyses the fat, sugar, and al- buminoids varied to a marked degree, and yet the in- fants all digested and throve well on their special per- centage, while what agreed with one produced at times serious symptoms in another. He considered, therefore, that, so far as milk is counted upon as a food, it should be understood as a general name for a composite meal, the special ingredients of which should be modified to suit the digestion of the individual infant. To obtain this possibility Dr. Rotch established a milk laboratory where physicians could send prescriptions for milk of a definite formula, and have them dispensed accurately. The milk used in this laboratory is obtained from a herd of cows, of special breed, and so systematically fed that the analysis of their milk is of almost unvarying percent- age. The morning milk of these cows, milked into glass, and kept scrupulously clean, is rapidly cooled, and is delivered at an early hour at the laboratory. Here, by means of a separator, a stable sixteen per cent, cream is 50 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Artificial Feeding. Artificial Immunity. separated from the milk. The amount of albuminoids in the separated milk is known, and by means of a sug- ar-of-milk solution of definite strength, the amount of the sugar is carefully adjusted. As the chemistry of the mineral matter in woman's milk is little known, for the present that element is ignored. In writing a prescrip- tion, therefore, the three average percentages, namely, those of the fat, sugar, and albuminoids-4, 7, and 1.50- have only to be remembered, and starting with these figures any of the ingredients can be increased or de- creased according to the need of the special infant. In dispensing the prescription, the superintendent of the laboratory from the above materials is able, by a comparatively simple calculation, to dispense a milk con- taining the exact proportions ordered. The quantity re- quired for each feeding is placed in bottles corresponding in number to the number of times that the infant is to be fed in the twenty-four hours. The day's food, each feeding in its own bottle, is then placed in a basket, or suitable receptacle, and sterilized for half an hour at a temperature of 167° F. It is then ready to be sent out to the infant. When the time for feeding arrives, the nurse takes a bottle from the basket, warms it, replaces the stopper by a suitable nipple, and gives it to the infant. The following are given by Dr. Rotch as examples of suitable prescriptions for infants at varying ages, and under varying conditions : 1. For a healthy baby, four months old and normal weight, milk to be of following composition: Fat 4.0 Milk-sugar 7.0 Albuminoids 1.0 Send six tubes, each four ounces, with lime-water one- twentieth. To be sterilized at 167° F., for twenty min- utes. Feed every three hours. 2. For the same baby sick, albuminoid digestion weak, as evinced by vomiting, colic, and curds seen in the de- jections, milk of following composition : Fat 3.0 Milk-sugar 6.0 Albuminoids 0.50 Send eight tubes, each containing three ounces, with lime-water one-tenth. Sterilize as above. Feed every three hours. 3. For an infant six months old in whom the sugai di- gestion is weak, milk of following composition : Fat 3.0 Milk-sugar .. 4.0 Albuminoids 2.0 Send six tubes, each containing six ounces, with lime- water one-twentieth. Sterilize as before. Feed every three hours and a half. 4. For an infant twelve months old with duodenal jaundice, milk of following composition : Fat 0.50 Milk-sugar 5.00 Albuminoids 4.00 Send five tubes, each containing eight ounces, with lime- water one-eighth. Sterilize as above. Feed every four hours. The exact capacity of the infant stomach, as regulating the quantity of food to be allowed at each time of feed- ing, is a matter of much importance. At the meeting of the American Pediatric Society in 1890, Dr. L. Emmett Holt6 read a paper on this subject, in which he gave the result of his observations at one hundred and forty-two autopsies. Very careful precautions were taken to in- sure as accurate data as possible. The measurements obtained in ninety-one cases he tabulates as follows ; the others, most of them his earlier cases, being discarded on account of imperfections in the methods employed :- (SUPPLEMENT.) Table showing Average Capacity of the Stomach in Ninety- one Cases. Age. Number of cases. Average capacity. Ounces. Birth 5 1.2 Half month 7 1.5 One month 4 2.0 One and a half month 11 2.27 Two months 4 3.37 Two and a half months 2 4.25 Three months 6 4.50 Three and a half months 3 5.00 1 Four months 4 5.02 > = 5 average. Four and a half months 5 Five month- 4 5.02 ) Five and a half months 2 5.25 > = 5.75 average. Six months 8 5.94 ) Seven months « 7.00 I c QC Eight months 3 (> f - 6.88 average. Nine months Ten months 5 8.40| Eleven months 2 7 60 C - average. Twelve months 1 9.00 Thirteen months 4 8.75 > = 8.9 average. Fourteen months 5 9.00 ) These facts he summarizes as follows : 1. A very general correspondence between the age and capacity of the stomach is clearly shown. 2. Starting at birth with a capacity of about one ounce, the stomach increases in size, at the rate of one ounce a month during the first three months, reaching at this time about one-half the capacity seen at one year. 3. From three to eight months its growth is much slower, being on an average half an ounce a month. 4. From eight to fourteen months the rate of growth is still less, being on an average about one-third of an ounce a month. These statements of course express only averages, and it is to be expected that unusually large, or unusually small, children will be either a little above or a little be- low these figures. Dilatation of the stomach in healthy infants appears to take place readily. We may safely infer that the amount of food to be given at a single feeding should not much exceed the ca- pacity of the average stomach at that age, as it does not seem at all likely that any considerable portion of the food leaves the stomach during the few minutes that elapse while the infant is feeding. Dr. Holt also found by experiment with stomach-washing that in infants of one or two months, with apparently good digestion, two hours usually elapsed before all the milk left the stomach; in infants of five to eight months, the time required was generally about three hours. It is evident, therefore, that no feeding should be repeated short of these periods, and it is better in most instances to allow a short interval of rest. A. D. Blackader. 1 New York Medical Journal, January 31. 1891. 2 Am. Journal of the Medical Sciences, June, 1891. 3 Ibid., June, 1891. 4 New York Medical Record. July 2. 1892. 5 Trans. Am. Pediatric Society, 1892. • Ibid., 1890. ARTIFICIAL IMMUNITY. In the study of immunity trom infectious diseases two questions present them- selves, viz. : How to explain natural or racial immunity on the one hand, and acquired or individual immunity on the other. In the first place, how is it that in some cases a whole race of animals enjoys immunity from a dis- ease which kills other animals ; why is it that certain human races are exempt, or nearly so, from diseases which carry off thousands of individuals of other races? In the second place, how is it that susceptible individu- als on recovery from an attack often acquire immunity from a disease ? It is clear that where animals are ex- posed alike to infection, those which do not take the dis- ease must have a natural or acquired power of resisting the attacks of the micro-organisms, and the problem is to find out wherein this power lies. In times of an epi- demic the micro-organisms of a disease must surely find 51 Artificial Immunity. Artificial Immunity. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) entrance into insusceptible as well as susceptible races of animals or individuals of the same race, in one case doing no harm and in the other producing disease. Why do they find unfavorable conditions for their growth in one case and not in the other ? How does the immune race differ from other races, and the immune individual from susceptible individuals ? Two explanations have been offered for the first of these questions, but neither of them has been generally accepted as sufficient. One of these is advocated by Metchnikoff, and bears the name of Metchnikoff's phagocyte theory. According to this theory the white corpuscles of the blood eat up the bacteria, and in animals which have no blood the cells of the connec- tive tissue destroy the bacteria. Metchnikoff 1 bases his theory upon a large number of experiments with differ- ent micro-organisms on a great variety of animals. He found that in sponges, mollusks, daphnise, and earth- worms, also in frogs, and in rabbits and other mammalia, the introduction of small foreign bodies, such as car- minegranules, or bacteria, was followed by a massing to- gether of the cells, and that these cells either take up the foreign bodies, or surround them. He also verified the observation often made previously, that destructible foreign bodies become dissolved and disappear in the interior of the cells which have taken them up. This theory has attracted a great deal of attention, but has been shown, to be inadequate. As pointed out by Zieg- ler and others the cause of the massing of leucocytes about a foreign body is not due to an intentionally defen- sive attitude on the part of the animal tissues. Certain substances have the power of attracting leucocytes by so- called chemotaxis,2 and any foreign bodies which happen to lie in the path of the wandering leucocytes are taken up by these, and may be assimilated. The chemical and physical characters of the tissues and juices determine the direction in which the leucocytes wander, and if the leucocytes are not actively attracted in one direction they wander in the direction of the least resistance. If they are repelled or lamed by the chemical character of a foreign body, they are actually driven away or remain stationary instead of grouping themselves around the for- eign body. The idea of an active warfare between bac- teria and leucocytes, i.e., phagocytes, must therefore be abandoned. Phagocytosis is a frequent but not charac- teristic partial phenomenon of inflammatory processes, and not always has the same significance. In some cases phagocytosis results in the destruction of foreign bodies, such as bacteria. In other cases it results in the spreading of the disease to different parts of the body, as in leprosy and mouse septicaemia, where the bacilli grow specially well in the leucocytes, and become subsequently liberated. Phagocytosis must consequently be regarded as merely an incidental process which is often useful, but not always so. The germicidal properties of the serum of the blood devoid of the cells has also been offered as an explana- tion of natural immunity. Nuttall, v. Fodor, Buchner, and others have demonstrated the powerful germicidal properties of extra-vascular blood-serum, and there is every reason to believe that the serum in the animal has the same power. This is a most important discovery, but it does not suffice to explain immunity. If natural immunity were to be explained in this way, it is evident that the blood-serum of the immune animals should pos- sess germicidal properties, and the blood-serum from sus- ceptible animals should be devoid of these properties ; animals should be immune just in proportion to the de- gree of the germicidal power possessed by the blood- serum. Such, however, is not always the case. The blood-serum of a susceptible animal often has as much germicidal value as serum from an immune animal. This property of the blood varies, it is true, and in some cases there does seem to be a direct proportion between the extent to which the blood-serum possesses the power of killing the bacteria on the one hand and the degree of immunity on the other. It is evident from the foregoing that natural immunity is at best but imperfectly understood. On the other hand, artificial or acquired immunity from certain dis- eases has recently been made the subject of a great amount of experimental research, and many important, facts in regard to it have been established. It is now known that in this kind of immunity the fluid portion of the blood, the blood-serum, acquires tlie- power of neutralizing the disease-producing property of certain micro-organisms. This power of the serum of the blood is acquired on inoculating with cultures of the micro-organisms treated in a special manner beforehand, the details of which are given below. Blood-serum which has acquired this power not only protects the ani- mal in which it is formed, but it also protects or cures- other animals when drawn and injected into these. The protective property lies in the serum of the blood and not in the corpuscles. Immunity that has been conferred in the manner re- ferred to above is also transmitted to the offspring by the mother. Such offspring not only acquire a certain amount of immunity while in utero, but they derive a still larger amount from the mother's milk. The establishment of these facts is largely due to the investigations of Brieger, Kitasato, and Wassermann, working together, of Behring and his colaborateurs, and Ehrlich. The first of these, Brieger, Kitasato, and Was- sermann, emphasize the distinction between infection and intoxication as first made by Koch. Whether the dis- tinction can be sharply drawn in all cases or not, it is important for the understanding of their work to know just what is meant by these terms. The definition be- low is essentially that given by these authors. In infection the micro-organisms of a disease gain en- trance into the body of a susceptible animal, it may be in very small numbers, and spread and multiply through all the tissues and organs of the animal, plugging up capillaries, depriving the parts of oxygen, and offering a mechanical hindrance to the functions of life. In intox- ication the micro-organisms when inoculated in small quantities often produce no disease ; they tend to remain more or less confined to one part of the body, their seat of multiplication is localized ; they often do not spread to other parts, and are sometimes incapable of growing except on certain tissues ; but once having formed a. focus they produce a poison which is the cause of the disease. There are two kinds of these poisons found in cultures of bacteria, viz. : ptomaines and toxalbumins. The ptomaines are crystalline alkaloidal bodies ; the tox- albumins are colloidal. The former were obtained first by Brieger, the latter by Brieger and Fraenkel working together, and appear to be the disease-producing constitu- ents of pathogenic cultures. Animals inoculated with them alone show the same symptoms as animals inocu- lated with ordinary cultures. The micro-organisms of anthrax produce a typically infectious disease. They find entrance into the body, possibly in very small numbers and only at one minute spot, but if the animal is susceptible they rapidly spread to all parts, so that in one day or less they can be found with the microscope in the smallest drop of blood drawn from any part of the body, and from the smallest bit of any of the soft tissues. The organisms of tetanus, typhoid fever, diphtheria, and cholera, are examples of the bac- teria which produce intoxication. They set up a local disease at first, but sooner or later produce specific poi- sons which cause general intoxication. They are some- times found in parts of the body remote from the point of original infection, it is true, but not in sufficient num- bers or so widespread as to account for the general symp- toms of the disease, and moreover, the symptoms are those of profound intoxication. In tetanus the local trouble is often very insignificant and the number of tet- anus bacilli, even at the point of infection, surprisingly small, often disappearing entirely before the death of the animal. In diphtheria the bacilli are usually con- fined to the throat, though they have been found dis- tributed through the blood in other regions of the body. Typhoid fever bacilli are found in the spleen and blood, but are found most extensively in the ulcers of the large intestines. Cholera bacilli are found for the 52 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Artificial Immunity. Artificial Immunity. (SUPPLEMENT.) lowed to act for a short time, or if used in relatively small quantities, will produce attenuation. Carbolic acid, in the strength of 1 to 600, deprives anthrax cultures of all virulence without killing the organism if allowed to act on the cultures twenty-four days. Bichromate of potas- sium, if used in solution of 1 to 1,700 of water, kills an- thrax bacilli; if used in more dilute solution, 1 to 2,000 or 1 to 5,000, it weakens the virulence of these bacilli to such an extent that they will no longer produce the disease in sheep, but are still capable of killing guinea- pigs and rabbits. Again, cultures of anthrax bacilli may be attenuated by subjecting them to temperatures be- tween 42° and 55° C. for lengths of time varying from ten minutes to four weeks or more, the length of time varying in inverse ratio to the degree of heat. A com- bination of heat with the action of chemicals on the cultures has also been successfully used. But whatever method is employed, the object is the same, viz.: to ob- tain cultures which produce on inoculation little or no disturbance in the health of the animal, but enable the latter to resist more and more virulent cultures, to bring about such a condition that the micro-organisms are in- capable of growing in the tissues of the animal. Recent experiments of Brieger, Kitasato, and Wassermann have shown, however, that with anthrax increased resistance, but not full immunity, may be produced in this way. Animals so treated resist inoculations of somewhat weakened hut still virulent cultures, but they succumb without fail to inoculations with tissues of animals dead of anthrax. In mouse septicaemia complete immunity can be produced by combining these methods with those described below for the toxic diseases, making the animals so treated incapable of infection, and also poi- son-proof. The bacterial protei'ds or toxalbumins are unstable and easily destroyed. This might lead to the supposition that they can be as readily destroyed within the animal body as outside, but such is not the case. Many of the chemical and physical means so efficacious in rendering cultures harmless are either inapplicable or powerless in the animals. Some of them, however, give good results. The efficacy of Pasteur's inoculations for hydrophobia will now probably be universally conceded. The etiology of this disease is still obscure ; there is every probability that it is caused by a micro-organism, but this has not yet been discovered. Pasteur found that the poison of hy- drophobia is contained in greatest amount, if not ex- clusively, in the central nervous system, and moreover that the surest way to produce the disease is by subdural application of cerebro-spinal substance from an animal suffering from rabies. Animals inoculated in this way always have violent hydrophobia in from fourteen to twenty-one days. The virulence of the material is weak- ened by passage through apes, but is increased on passage through rabbits. By inoculation from rabbit to rabbit through forty or fifty of these animals successively, Pas- teur obtained a " virus fixe" which had a period of in- cubation of only seven days, and differed from ordinary " street hydrophobia " not only in the shorter period of incubation, but also in that it produced the disease on subcutaneous injection. A series of exactly graduated virulence was obtained by successive inoculations of the material which had been weakened by passage through an ape. By inoculations with the series so obtained dogs were given immunity. Pasteur subsequently changed this method of attenuation, and has used it for several years upon human beings. The method Pasteur now em- ploys consists in using the dried spinal cord of animals suffering from rabies. It was observed that the spinal cord of such animals gradually loses its virulence if dried at 20° C., and ceases to act if dried for sixteen or eighteen days. Starting with cord that has been dried for fourteen days, the injections are made in more or less quick suc- cession, often several a day. till material of full virulence is used. The injections are made in the abdominal wall above the groin. Koch prepared a lymph which was successfully used in some cases of tuberculosis. This lymph, or tubercu- lin, was made by extracting cultures of tubercle bacilli most part exclusively in the intestines, but occasionally also in the stomach. The bacteria of these diseases are therefore seen to have a tendency to remain localized. The general symptoms are brought about by poisonous products which these bacteria produce. It is not even necessary that these bacteria themselves shall be intro- duced to produce any of the diseases in question artifi- cially. They may be grown outside the body and their products alone successfully used to produce disease; the bacteria themselves may be killed or entirely removed from such cultures, and still the substance which re- mains will produce the disease. From the above enu- meration of these diseases it is clear that the production of immunity from them is of prime importance in human medicine, and it is precisely in these diseases that recent experiments give the best hope of early practical results. This difference between infection and intoxication has made it necessary to discriminate between immunity from infection and immunity from intoxication, and for immu- nity from intoxication the very appropriate term " gift- fest," poison-proof, has been introduced. If the micro-or- ganisms of a strictly infectious disease are incapable of increasing in the tissues of any given animal this animal has immunity from the disease in question. Not so with the strictly toxic diseases ; for the micro-organisms of these may be incapable of growing in the tissues of an animal, but their toxic products contained in a culture may still be poisonous for this same animal. The animal may acquire the power of preventing the growth of toxic organisms in its tissues, yet be unable to resist the toxic albumin produced outside of its body in cultures. Such an animal resists the inoculation of small amounts ■of a culture, because the micro-organisms are unable to grow and produce the poison, and there is too little of the ready-formed poison in the small amount of the cult- ure introduced-to produce disease. If larger amounts of the culture are introduced, so that enough of the poison already formed is present, the animal dies with all the symptoms of the disease. The animal is not poison-proof, though it may be, strictly speaking, im- mune from ordinary infection with the micro-organism. But, on the other hand, an animal may be made to resist the poisonous products of a given micro-organism, and still allow the micro-organism itself to grow in its tissues. The animal is poison-proof against the toxic products of the micro-organism in question ; the micro-organism has become harmless, or nearly harmless, for this particular animal, and can produce at most slight local trouble, but can no longer exert any general specific action. Con- sequently, in the artificial production of immunity the object to be attained with infectious diseases is to make the animal incapable of supporting the life of the micro- organisms in its tissues. The object in the toxic diseases is to make the animal capable of withstanding otherwise fatal amounts of the toxalbumins; in other words, to make the animal poison-proof. The procedure for the production of artificial immu- nity from the strictly infectious diseases is essentially the same in all cases. It consists in inoculating with atten- uated cultures-i.e., with cultures of micro-organisms ■of weakened pathogenic power-and gradually passing on to cultures of increased virulence, finally using cultures of full strength. Several methods for the attenuation of the virulence of a culture are employed. One method, the practical efficacy of which is doubtful, is to pass the micro-organism through animals of slight natural sus- ceptibility. Pasteur advocated this method to produce immunity in hogs from the so-called swine erysipelas. He found that by inoculating from rabbit to rabbit the virulence of the micro-organisms of this disease increases for rabbits, but, on the contrary, decreases for hogs. In- oculations of the bacilli of hog erysipelas, which have thus been " acclimated " to rabbits, produce slight sick- ness in hogs, and, after recovery, these animals resist in- oculations of cultures of full virulence for about a year. Other methods of decreasing the virulence of pathogenic micro-organisms are the use of certain chemicals, and of heat, on the cultures. In general, it holds true that all Agencies which are injurious to the micro-organisms, if al- 53 Artificial Immunity. Artificial Immunity. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. with glycerin. The cultures were made in glycerin bouil- lon, and the bacilli which accumulated on the surface of such cultures were skimmed off, extracted with gly- cerin, and sterilized. Individuals suffering from tubercu- losis react in a characteristic manner when inoculated with this lymph, but the expectations in regard to its curative value at first aroused have not been fulfilled. Similar lymph has been prepared from cultures of glan- ders, and used for diagnostic purposes. This so-called mallein was prepared by Kalming, Preusse, and Pear- son, each independently.3 The application of certain substances at the seat of in- oculation prevents infection. The most potent substances of this kind are the trichloride of iodine and the double chloride of gold and sodium. These substances must be applied shortly after inoculation, they fail to act a few hours later. They also fail when injected at a place re- mote from the seat of inoculation. These substances also destroy the pathogenic power of bacteria when put into the cultures, or when mixed with the culture-medium upon which the bacteria are grown. Behring was the first to observe these facts,4 and he has shown that better results are obtained by using cultures containing the trichloride of iodine than with any other method.6 But cultures containing watery extracts of the thymus gland were employed by Brieger, Kitasato, and Wasser- mann in a number of diseases with satisfactory results.6 These authors succeeded, by the use of cultures grown in thymus bouillon, or by mixing the thymus extract with cultures, in producing in animals immunity from teta- nus, cholera, diphtheria, typhoid fever, erysipelas. A certain amount of resistance was also obtained with an- thrax, i.e., animals resisted somewhat weakened but still virulent cultures, but not tissues from animals dead of anthrax. It could hardly be expected that immunity from anthrax could be obtained in this way, as it is a typically infectious, and not a toxic, disease. Immunity from mouse septicaemia could only be obtained by using cultures of the organism in thymus bouillon, and after- ward inoculating with old weakened, but still somewhat virulent cultures, i.e., combining the method for the toxic diseases with that for the infectious.6 There are several theoretical considerations which led to the em- ployment of the extracts of thymus gland. There is a certain analogy between the enzymes or physiological ferments and the bacterial proteids : the former, like the latter, are albuminoid poisons. Gautier, Bouchard, and others have shown that the physiological ferments act as poisons ; this being the case, they could not circu- late as they do in the blood without injury to the animal unless there be some arrangement for neutralizing their toxic qualities. This arrangement, it is held, probably lies in the protoplasm of the cells of the tissues, and for this reason those organs which are richest in cells and blood seem best adapted to this function. It would ap- pear for this reason that the thymus, thyroid, and lym- phatic glands act as purifiers of the blood that streams so abundantly through them, and direct observations go to show that the thyroid gland has the power of destroying this kind of poisons to a remarkable degree, for, as pointed out by Horsley and others, extirpation of the thyroid is followed by symptoms closely resembling those of chronic intoxication, and these symptoms, as shown by Vassale, can be successfully combated with in- jections of the juice from the thyroid gland of other ani- mals. Transplantations of the thyroid gland in man and animals are also followed by improvement in the symp- toms where the transplanted gland grows. The lym- phatic glands appear also to possess this quality. They seem to be inserted into the lymphatic circulation for the purpose of arresting poisons contained in the lymph, for it often happens that a local affection spreads to the nearest lymphatic glands and there ceases. It is believed that this power of the glands to counteract poisons con- sists in the production of specific antitoxins which are given up to the blood on its passage. The antitoxins are supposed to be formed in the animal when the poisons are introduced. If the amount of poison introduced, or (SUPPLEMENT.) formed by the growth of bacteria in the body, is not suf- ficient to kill the animal, it brings about the production in the animal cells of an antitoxin, and after complete re- covery the animal is able to bear larger doses. But in every case inoculations must finally be made with in- creasing amounts of cultures of full virulence.6 In this way the antitoxic property of the blood can be produced, and greatly, perhaps indefinitely, increased by the cautious introduction of larger and larger amounts of cultures, which have been modified by heat,* by the ad- dition of trichloride of iodine or extracts of the thymus gland, or by increasing doses of the toxalbumins them- selves. The latter method has been clearly demonstrated by Ehrlich.1 Vallet8 in this connection produced immunity from intoxication with cultures of B. coli communis by feeding rabbits with diluted sewage. It is true that Ehrlich at first used toxalbumins derived from higher plants, and not bacterial proteids, but the analogy is very close between the two kinds of poisons, and Ehrlich's re- sults have been found to agree with results obtained subsequently with bacterial toxalbumins. The sub- stances which Ehrlich used are more easily procured, and the amounts can be more accurately determined than with the indefinite mixtures found in cultures of bacteria, and for this reason the experiments with the former are not complicated by variability in the action of given amounts. The advantage of working with definite quantities is evident, and this is clearly impossible with bacterial proteids till these have been obtained pure. In the one case the effects produced by a given quantity are the same in all cases, in the other the effect has to be de- termined in every case beforehand, because the amount of toxalbumin varies in different cultures. For this rea- son Ehrlich decided to study the production of immunity from abrin, a toxalbumin derived from the jequirity bean ; risin, a similar poison obtained from the castor-oil bean ; and, in a different set of experiments, robin,9 from acacia bark. Ehrlich found that by feeding mice at the start with biscuits containing much less than the fatal doses of these poisons, the animals gradually bore greater and greater amounts till they could be inoculated without injury with amounts of the poisons sufficient to kill a great number of mice. The mice were made " abrin- proof," " risin-proof," or "robin-proof." In every case the process is specific, an animal which is abrin-proof is not proof against poisonous doses of risin or robin, and vice versa. This is also true for the bacterial poisons. An animal that has been made proof against the poison of tetanus is not necessarily proof against the toxalbumin of cholera or typhoid fever. As stated above, the antitoxic property of the blood of poison-proof animals not only protects the animal it- self, but the blood can be drawn and used to protect and even cure other animals. The testimony in regard to. this is constantly increasing, and its practical importance is evident. Thus Stern10 found that freshly drawn blood from typhoid fever convalescents protects mice. G. and F. Klemperer11 found that blood-serum, and also sputa, from persons that have passed the crisis in croup- ous pneumonia, possess anti-toxic properties. They also made an extract from the tissues and intestinal juices of a pneumonia-proof animal, and used it success- fully on pneumonia patients. Sternberg12 found that blood-serum from a vaccinated calf neutralizes both bo- vine and human virus. It must be clear that if it is pos- sible to obtain blood acting as above described it is only necessary to make large animals poison-proof, and use their blood for the prevention and cure of disease. As pointed out by Behring, the possibility of this " blood- serum therapeutics" is now clearly demonstrated, it only remains to obtain large animals in sufficient numbers tn put the method into general use ; it would also require considerable time to make the animals poison-proof, and a certain percentage of loss would also have to be reck- oned upon. In view of any eventual practical utility of * Vaillard produced immunity from tetanus in rabbits with cultures heated to 60 or 65° C. 54 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Artificial Immunity. Artificial Immunity. (SUPPLEMENT.) the blood-serum therapeutics the selection of the animals from which the serum is to be obtained is a matter of great importance. It would be practicable to use only large animals, so as to get sufficient quantities of serum. It is also necessary that the animals be susceptible at the start. It is true that claims have been made for the in- herent protective value of blood-serum from non-suscep- tible animals, but these claims have not been substan- tiated. Kitasato has shown that the blood of chickens ordinarily has no protective value against tetanus when injected into other animals, although chickens have nat- ural immunity from tetanus. Still Vaillard13 has shown that even such animals can be made to furnish protective serum by inoculating them with very large amounts of a virulent culture. Chickens injected with 15 to 20 c.c. of a filtered but not heated culture furnish blood of high protective worth. But it is only blood-serum from ani- mals naturally susceptible, but rendered poison-proof, that attains the highest protective value. So in the different diseases it would be necessary to use different animals. Thus for tetanus horses are the best suited, they can supply a large amount of blood, and are natu- rally very susceptible. In fact, horses have been used for this very purpose.14 Tissoni and Catanni, and others, have also reported a ,number of cases of tetanus in the human being cured with blood-serum of tetanus-proof dogs. The most suitable animals to use for diphtheria are sheep, and they have also been used for this pur- pose.15 The more susceptible an animal is by nature the higher the degree of curative value obtainable ; and the higher the degree of resisting power produced in the ani- mal the stronger the power of its blood. The value of the blood-serum depends, in other "words, upon the extent to which the animal from which it has been obtained has been made poison-proof. The degree to which an ani- mal has been rendered poison-proof is expressed by the number resulting from dividing the minimal fatal dose into the largest amount which the animal can bear with- out serious symptoms. In animals of the same kind the size of the fatal dose increases with the weight of the animal. The minimum fatal dose is that which is just able to kill an animal of a given kind and size. Thus if two guinea-pigs of approximately the same weight are in- oculated, one with .01 c.c. of a diphtheria culture, and the other with .005 c.c. of the same culture, and the animal inoculated with the larger amount dies, while the latter shows very slight symptoms or none at all, the minimum dose of this culture for guinea-pigs of such weight is .01 c.c. If a guinea-pig of equal weight with the two in the example above withstands an inoculation of .01 c.c. of the same culture, this animal is said to have one degree of immunity ; if it withstands .02 c.c. it has two degrees ; if it withstands 1 c.c. it has one hundred degrees of im- munity, and so on. This is Ehrlich's method of express- ing the degree of immunity in poison-proof animals. The protective value of the blood-serum of such animals may be expressed numerically, as suggested by Behring and Wernicke, as follows: The smallest amount of blood-serum necessary to protect an animal is taken as a unit and compared with the weight of the animal, and this proportion is used to express the protective power of the serum. Suppose three guinea-pigs are used to test the value of the serum of a diphtheria-proof animal, and sup- pose one of them receives .5 c.c. of serum to every one hundred grammes of its weight, a second 1 c.c. of serum to every one hundred grammes of weight; the third 2 c.c. to every one hundred grammes of weight, the protective value of the serum would depend upon which of the ani- mals showed marked symptoms of diphtheria poison upon inoculation of a fatal dose. If the animals which received .5 c.c. and 1 c.c., respectively, should die, and the other one showed no marked symptoms, the blood- serum would have a protective value of 1 to 50. If the animal inoculated with.5 c.c. alone was affected the pro- tective value would be 1 to 100-the animal receiving the blood-serum in this proportion not having been affected by subsequent inoculation with a certainly fatal dose. Animals which show marked local or general symp- toms on inoculation with a fatal dose are not regarded as having been protected, even if they eventually re- cover. The transmission of immunity by poison-proof animals to their offspring has been thoroughly studied by Ehrlich for animals made proof against the toxalbumins of some of the higher plants, those already mentioned, and also in animals rendered proof against bacterial toxalbumins. The observations in the latter case were few in number, but they tally precisely with the observations made in the former as far as they w'ent. It is conceivable that immunity may be transmitted by the father and the mother both. Such, however, has been found not to be the case. Immunity is transmitted by the mother alone. It is immaterial in any case whether the father enjoys immunity or not. Immunity in the father does not even increase the immunity transmitted by a poison-proof mother. Immunity in the offspring might be either a purely maternal gift, or it might be brought about by rendering the mother poison-proof during gestation. These are evidently two different things. In the one case, mothers which have attained a fixed degree of immunity would transmit a part of this to the children ; in the other, the same process which renders the tissues of the mother poison-proof would act upon those of the foetus as well. These two means of acquiring immunity must be con- sidered apart. Ehrlich distinguishes two kinds of immunity, active and passive. In active immunity there is a peculiar adaptation of the animal organism to resist toxalbumins, i.e., the production in the body of antitoxins, and it is characterized by extraordinary stability. In passive im- munity there is an introduction of a certain amount of the ready formed antitoxin ; as soon as this is eliminated from the body the animal is no longer poison-proof. Thus by the introduction of antitoxic serum into an ani- mal it is possible to produce often astoundingly high degrees of resisting power, but, from the nature of the case, the resistance is limited in time. The ready-formed antitoxin is eliminated in from thirty to sixty days, and as the animal is not given the power in this way to ac- tively renew it, the latter is no longer poison-proof. Now, the immunity transmitted by the mother is of this kind ; she does not transmit the power of actively forming the antitoxins, but merely gives a part of that which is formed in her body. The offspring of a poison- proof mother are poison-proof to a high degree about four weeks after birth, but at the beginning of the third month, or more certainly by the end of the third month, all traces of immunity are gone. By this time the anti- toxin derived from the mother has been eliminated, and neither these animals nor their offspring, i.e., the grand- children of the poison-proof animals, have any resisting power. The second possible way of producing resisting power in the foetus, viz., by rendering the mother poison-proof during pregnancy, has not yet been sufficiently tested by actual experiment to be decided upon. It cannot be de- cided on general principles, for the embryonic tissues may not react as the adult tissues do. The probabilities are that they are not as susceptible to the action of the toxalbumins as the adult tissues, and the production of immunity depends upon this susceptibility. One obser- vation of Ehrlich's seems to show, however, that the foetus can be given active immunity along with the mother. A pregnant mouse was fed continuously with risin, and the young were risin-proof to a high degree four months after they were born ; but the experiment was not beyond the suspicion of error, according to Ehr- lich's own statement. Experiments of others in this direction are not convincing, because in all cases the test was made at a time when the young may have still had some of the maternal antitoxin remaining, or, as will be seen below, they may have been deriving it from the milk. That the offspring of a poison-proof female derive anti- toxin from the mother's milk is shown very strikingly by Ehrlich's experiments. Ehrlich found in many cases that the young showed resistance to toxalbumins for a 55 Artificial Immunity, Asiatic Cholera. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. longer time than could be accounted for by a maternal gift of antitoxin at birth. They are protected after the antitoxin derived from this source is eliminated ; so they must derive additional protection from some other source, and this proved to be the milk. Indeed, this in suck- lings could be the only source. This is proven beyond question experimentally by the results of " swapping off- spring, or the wret-nurse experiment." If the litters of the same age from a poison-proof mother and of an ordi- nary non-poison-proof mother are swapped around at birth, it is possible to observe, in the first place, just how long the immunity derived from the mother as a gift before birth lasts, and in the second place the degree of immunity acquired by normally susceptible offspring from the milk alone. Whatever resistance is shown by the offspring of a poison-proof mother in this experiment must be due alone to the antitoxin acquired in utero ; the milk of the susceptible foster-mother contains no anti- toxic properties. Whatever resistance is show'n by the offspring of the normally susceptibly mother must be de- rived from the milk of the poison-proof foster-mother. The immunity derived in this way alone from the milk of a poison-proof foster-mother is higher in degree than that derived in utero alone. Offspring of an ordinary non-poison-proof mother derive eight times the resisting power from the milk of a poison-proof foster-mother than the latter is able to confer upon her own children, unless these are allowed to suckle her. An illustration will serve to make this clear. A normal, non-poison- proof female was given four offspring of a highly abrin- and risin-proof mother to suckle ; this highly poison- proof female was given the five offspring of the normal mother to suckle. The highest degree of immunity ob- served in the former case was scarcely 5, the highest degree in the latter fully 40, i.e., one of the offspring of the poison-proof mother that suckled the normal female, barely withstood five times the fatal dose at twenty-one days old ; one of the offspring of the normal mother which suckled the highly poison-proof foster-mother withstood forty times the fatal dose at about thirty days old. Another experiment of Brieger and Ehrlich16 which also gave striking results, was made with tetanus upon a pregnant goat and her kid. The goat was treated by the Brieger-Kitasato-Wassermann method, viz., by inocula- tions of cultures in beef-tea, with the addition of thymus extract. Inoculations were begun six days before partu- rition, and continued for twenty-seven days after. The kid was found to be highly poison-proof. The protective value of the milk inoculated into mice was shown to be astoundingly great, 1,600 to 2,400 degrees. The serum of the milk was equally potent, and the evaporated serum had 5,000 degrees potency. It is evident that in inherited artificial immunity, where the poison-proof mother is allowed to nourish her own young, there are two factors : the antitoxin de- rived by the foetus, and, still more important, that ob- tained from the milk. Now, it is evident that this power of the milk must lie in the antitoxin which the latter contains, and the question arises whether this antitoxin is formed by the milk-glands or whether it is formed elsewhere, and is merely eliminated by these glands. It has been found that the latter is the case. If a normal animal is dosed during lactation with blood- serum from a poison-proof animal, the sucklings acquire typical protection from the milk. Experiments with tetanus on mice showed that great immunity up to forty degrees can be produced in this way in the sucklings. Immunity produced in this way is passive, as would be naturally supposed ; but it makes its appearance very quickly, within twenty-four hours after the mother has received the protective serum. Even normal sucklings which are inoculated with a splinter of wood with tetanus organisms on it, and then allowed to suck a highly tetanus-proof foster-mother, re- cover even if tetanus symptoms appear. Meade Bolton. (SUPPLEMENT.) schritte d. Med., iii., 1884. etc. Compare Ernst Ziegler : Historisches und Kritisches u. d. Entziindung, p. 198 et seq. Abdruck aus Beitrage zur path. Anat., etc., vol. xii., Jena. 2 Stahl and Pfeffer, Leber. Buchner. Massart and Bordet, Gabritsch- ewsky, Steinhaus et al. See Ziegler, loc. cit., page 180. 3 Eber A. : fiber Rotz lymphe (Mallein). [A Review.] Centralblatt fiir Bact., etc., vol. xi., No. 1, p. 20. 4 Zeitschrift fiir Hygiene, vol. xii.. No. 1. 6 Die Blutsernmtherapie, etc. Leipzig. 1892. " fiber Immunitat und Giftfestigung, Zeitschrift fiir Hygiene, vol. xii., No. 2. 7 Ehrlich. Paul: Deutsche Med. Wochenschrift, Nos. 32 and 44, 1891. 8 Transactions of the Seventh International Congress for Hygiene, etc., London, August. 1891. 9 Ehrlich, Paul: fiber Immunitat durch Vererbung und Siiugung, Zeitschrift fiir Hygiene, etc., vol. xii.. No. 2. 10 Deutsche Med. Wochenschr., No. 37, 1892. 11 Berlin klin. Wochenschr., August, 1892. 12 Trans, of Assn, of Am. Phys., vol. vii., 1892. 13 Vaillard : La Semaine M6d., No. 31. 1891. 14 Behring : fiber Immunisirung und Heilung von Versuchsthieren beim Tetanus, Zeitschrift fiir Hygiene, vol. xii., No. 1. Also Schiits, ibid. 15 Behring und Wernicke : Ibid. 16 Brieger und Ehrlich: Deutsch, med. Wochenschr., No. 18, 1892. ASEPTOL (Sulpho-carbolic acid ; Sozolic acid) is pre- pared by mixing sulphuric acid and phenol in chemically equivalent parts. It is a sirupy, reddish-brown fluid. Specific gravity, 1.400. Miscible in all proportions in water, alcohol, and glycerine. It is less poisonous than carbolic acid and has a more agreeable odor. The asep- tol of commerce is a solution of varying strength, about thirty-three per cent.; specific gravity, 1.168. It pos- sesses antiseptic properties and is used externally for the same purpose as carbolic acid. It is devoid of caustic properties and is less irritating and not so powerful an antiseptic. A solution of ten per cent, may be generally employed as an antiseptic wash. In diphtheria it is recommended as a local application. It may be given internally, but the official salt, sulpho-carbolate ofsodi- um, is to be preferred. Beaumont Small. ASIATIC, OR EPIDEMIC CHOLERA is an acute in- fectious disease that is endemic in certain parts of India, and that has during this century advanced out of that country to other parts of the world, where, in its epi- demic form, it has produced great loss of life. It is char- acterized by its great fatality among the communities to which it may be transported, by the apparent ease with which it has been carried from place to place, and by its invariably following the lines of travel in its march from one place to another. It is distinctly a disease of the gastro-intestinal tract, produced, primarily by a micro- organism, and attended with secondary symptoms, due to the absorption of toxic principles elaborated during the development of this micro-organism. A study of the history of the epidemics that have oc- curred outside of India will easily demonstrate the facts in regard to the ways by which the disease is transported from place to place. There is only a difference of degree between cholera, choleraic diarrhoea, and cholerine-the disease is the same in all these forms provided that they are accom- panied by the activity of the spirillum of Koch. So far as true cholera and cholera nostras are concerned, there is a very great similarity, or rather there may be, be- tween the clinical symptoms of the two diseases, but the differentiation may be easily made by the isolation of the specific spirillum of the former. The same thing is true in regard to the differentiation of true cholera from an attack of indigestion, which, if severe enough, may take on many of the characteristics of true cholera. Cholera nostras is a seasonal disease and is not transportable, and it has been known for ages. True cholera made its first advance out of India in 1817, and since that time has been seen periodically in Europe. In all cases it has fol- lowed the line of travel, and has never been seen to be distributed in any other way. Therefore true cholera never makes its appearance except after other cases have been seen that might excite suspicion, while cholera nos- tras appears only in hot weather, in sporadic cases, and dies out if the weather becomes cooler. The period of cyanotic chills, although one of the most 1 Metchnikoff : Arb. aus d. Zoolog. Inst, zu Wien, vol. v., 1883 ; Bio- log. Centralbl., iii., 1883-84 : Virchow's Archiv., vols., 96, 97, 107, 109, etc. Also various articles in the Ann. de 1'Inst. Pasteur. Also Fort- 56 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Artificial Immunity. Asiatic Cholera. striking in both diseases, gives no special indications for differential diagnosis, for the same thing is seen as an accompaniment of many other diseases, as acute catarrhal diarrhoeas, acute poisonings, etc. The prodromic period exists in cholera nostras practically always, but not near- ly always in true cholera. * The period of reaction is of importance in differential diagnosis. In cholera nostras it is usually benign-if the patient escapes the violence of the first attack, convales- cence is as a rule easy and rapid ; with true cholera, on the contrary, convalescence is exceedingly dangerous- full of pitfalls, and may terminate fatally at any time. History of Epidemics of Cholera and Their Les- sons.-The dispute is active as to whether true cholera existed in India before its appearance outside of its limits in 1817, but the probabilities are all in favor of its having done so ; the especial point that seems to be changed in its nature being that it then seemed to take on the prop- erty of migration. Whether this ■was in reality a new property, or whether it was simply brought to the notice ■of Europeans by their being first attacked by it, is an un- settled question. There is no doubt, however, of the very great influence exerted upon its spread by the great pilgrimages to the various shrines of India ; nor is there any doubt that the sole home of true cholera-the one place where it is present all the year in an endemic form -is the delta of the Ganges. There are also certain places in India, Indo-China, China, and Japan in which it seems to be present nearly all the time, but it certainly is not endemic in Persia, on the borders of the Caspian Sea, nor in Mecca. From this one place in which it is endemic, cholera has always been transported to Europe in the steps of the traveller and along the routes of commerce ;-neither wind, moisture, electricity, nor any of the forces of nat- ure have taken any active part in the actual transporta- tion of the disease, although unfavorable climatic and hygienic conditions, of course, may play a favoring part in the development of the disease, after the arrival of its ■cause. Epidemics of Cholera.-Cholera has made five ap- pearances in Europe-in 1830, in 1846, in 1865, in 1884, and in 1892. Each one of these appearances was a great •epidemic. There had been also, in 1823, in Astrachan, a small •epidemic of cholera, important, because it traced the route that the succeeding invasions would follow. Leav- ing Persia, where it prevailed in 1822, cholera invaded the southern provinces of Persia, forming the southern shore of the Caspian Sea. After some ravages, it be- came quiescent during the winter of 1822, to reappear in April, 1823, at Recht. From this city, following the western shore of the Caspian Sea, it crossed the Rus- sian frontier in June, at the little town of Astara. From Astara it reached Lenkoran on the 29th of June. On the 11th of September it was seen at Bakou, and on the 22d at Astrachan, where it soon disappeared. The First Epidemic.-The epidemic of 1830 had the same origin. Ghilan and Mazanderan, the two Persian provinces before invaded, were attacked in 1829. The disease was quiescent during the winter, but appeared in the spring in Ghilan and in the little port of Enselli, sit- uated several hours' journey from Recht. As in 1822, the •cholera followed the western border of the Caspian Sea, and showed itself about the middle-of June, 1830, at ■Salian. Taking here two different directions, on the one side, it appeared at Bakou, Kouba, and Derbent, and in- vaded Astrachan ; on the other, following the whole val- ley of the Koura, it advanced toward Tiflis, passing by Elizabethpol, and spreading throughout the whole of the Caucasus. In this way it reached successively the neigh- boring regions of.Astrachan, and advanced up the Volga. On the 4th of August it was at Saratow, thence extend- ing into Russia, and reached the other European States. This epidemic, by certain extremely interesting pecu- liarities, demonstrated from the very first the transporta- bility of cholera. The Second Epidemic.-In 1846, after having reached Salian by a course identical with the preceding, cholera (SUPPLEMENT.) was seen on November 8tli in the city of Chemacka, a short distance from Salian. It was in Bakou and at Derbent in December. Forgotten during the winter, it appeared in April, 1847, in the districts of Derbent and of Kouba, and at Tamir-Khan-Choury. From thence it was transported by sick soldiers to the mineral waters of Kisliar. The disease was disseminated among the Calm neks scattered over the steppes near the Volga. On July 15th it appeared at Astrachan, and advanced at the same time toward Tiflis. From Tillis it reached Koutais, and was soon carried to Trebizond. North of Titi is, the cholera followed the great military road that crosses the Caucasus at the height of 7,000 feet, and toward the end of July it existed at Stavaropol, on the other slope. (It is to be observed that before reaching Tiflis, the cholera entered Persia by the great routes of travel that pass from Bakou, by Erivan, Natchichievan, Djoufa, Ordoubaz, and on toward Tauris. On the one side it attacked the region of the Black Sea, and invaded all its ports ; on the other, it passed through Russia, Ger- many, France, and Italy.) A striking thing about these epidemics, aside from the exact places that they attack, is their progress by succes- sive stages-a form of advance that is always the same, and which is a trait common to all the epidemics of cholera that have followed the land route. This second epidemic persisted until 1855. The Third Epidemic.-The great epidemic of 1865 was the first one appearing by the sea route. It demonstrated that the danger is not localized on the Caspian Sea, but that it is also present on the shore of the Red Sea. Its appearance by this route upset all the doctrines that had been held until that time, and the panic that it produced in Europe resulted in the first conference at Constanti- nople. It is interesting to follow in some of its phases the course of this epidemic, because its influence has been great. It started from Mecca, having been brought into that city by ships coming from India filled with pil- grims. Toward the end of April it broke out in Mecca and at Medina. The mortality increased very greatly during the three feast days at Arafat. More than thirty thousand of the pilgrims died of cholera, and the prog- ress of the disease showed that everywhere it accom- panied these pilgrims. Egypt, by reason of its proxim- ity to Mecca, was the first country attacked. From May 19th to June 10th ten steamers landed from twelve to fifteen thousand pilgrims at Suez. By false declarations from the captains they were passed at Suez, although the Sydney, an English steamer, had lost a number of cases during the voyage. The first steamer, landing May 19th at Suez, had thrown its dead into the sea. On the 21st, cases appeared at Suez, and among the number were the captain of the vessel and his wife. June 2d, the first case appeared at Alexandria, and in two months cholera had four thousand victims in Alex- andria, and in Egypt, in less than three months, it pro- duced the death of more than sixty thousand individuals. The foreign population emigrated en masse, and carried with them throughout the entire world the germs of the disease. Europeans and Levantines, to the number of from thirty to thirty-five thousand, started for all the ports of the Mediterranean, and cholera developed at Constantinople, at Smyrna, at Beyrout, in Mesopotamia, and at Odessa on the Black Sea, and was carried to New York and Guadaloupe by steamers, appearing in the port at the same time that the steamer landed its passengers. Its importation into Newr York was as follows : The Atlanta, an English ship, left London on October 10th with a cargo of merchandise and forty passengers. The sanitary condition of London was at that time excellent. Reaching Havre on the 11th, where it remained one day only, it embarked 564 new passengers, mostly Swiss, who had all passed through Paris, where, with certain exceptions, they had remained at least a short time, and where at the same time cholera was raging with great in- tensity. Two German families had stayed in Paris at the Hotel of La Ville de New York, and five days at the hotels of the Weissen-Lamm and Hultgarderhof. Some emigrants that had arrived several days before in these 57 Asiatic Cholera. Asiatic Cholera. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. last hotels had fallen suddenly ill. The steamer sailed on the 12th, and on the next day there was a death from cholera of a child in the family coming from the Weis- sen-Lamm Hotel. Five other deaths followed on the 14th, the 16th, the 18th, the 19th, and the 22d, in the family that had stayed at the Hultgarderhof. On the arrival of the Atlanta the surgeon declared 60 cases of cholera, and 15 deaths during the voyage. Two deaths occurred in port, and of the 142 patients sent to the Marine Hospital from November 6th to 19th, 6 died, which makes a total of 23 deaths. The Atlanta was im- mediately isolated in the lower bay, and after ten days of quarantine all the sick were removed, and, thanks to these measures, New York was preserved. There were also importations in 1866 by the steamers Virginia and England. The epidemic of 1865 ceased in 1874, and there was no other case seen in Europe until 1884, although there were interesting manifestations in other countries and on the sea-interesting from the point of view of the transporta- bility of the disease. The Fourth, Epidemic.-The epidemic in Egypt in 1883 was no surprise to those who knew the sanitary condition of the country. Cholera appeared at Damietta toward June 19th or 20th, possibly a little earlier, and its explosion at this time is ascribed, certainly by the French, to the suppression of all sanitary precautions, including quar- antine, by authority of the British government. This epidemic at Damietta, increased for about fifteen days, remained stationary for about five or six days, and then diminished just as speedily. It was almost extinct a month after its appearance, having claimed from two thousand to twenty-five hundred victims. The spread of the disease throughout Egypt was manifest and rapid. (An interesting account of how this epidemic reached Damietta is given in Proust's work on the "Defence of Europe against Cholera," Paris, 1892, p. 7.) Cholera had not yet died out in Egypt, before the news came that it had broken out among the pilgrims to Mecca, and there has been much discussion as to the ori- gin of this epidemic. In 1884 a number of vessels left the extreme East, and had cases of cholera on board during their voyage ; but, by reason of the precautions taken, Egypt and Europe escaped the danger at this time. The first case of cholera seen at Toulon occurred on June 13th, on the ship Montebello ; a second case on June 14th ; a third on the 18th, on the Jupiter, near the Montebello ; a fourth, also on the 18th, on the Monte- bello ; a fifth, June 20th, on the Alexander, which was also placed near the Jupiter and the Montebello. After the 21st the disease spread through different quarters of the city, and it is thus shown that it did not make its ap- pearance at Toulon in the city, but just outside. Its importation into Marseilles occurred by the appear- ance of the first case on June 27th, in a young man, who had three days before come from Toulon. The next case, which occurred on June 28th, was that of a man who lived in the same neighborhood ; and from this time onward the disease continued to spread. In Paris there appeared two cases on the 13th or 14th of July, but the epidemic did not really begin until the 4th of November. In Brittany the first case was not observed until Sep- tember 20th, at Concarneau. Other ports were succes- sively invaded. Algeria was attacked in 1884, and there was a slight re- currence in Algeria and in Tunis in 1885. Cholera was brought to Italy in 1884 by the Italian workmen, who, to the number of more than eight thou- sand, returned to their country after the extension of the cholera to Toulon and Marseilles. The Province of Cu- neo, in Piedmont, was the first one attacked, on June 27th, and the disease spread successively to different parts of Italy, to Genoa, Naples, Venice, Sicily, and so on. It appeared in Spain, in the month of August, in the Province of Alicante, and ceased toward the middle of October, reappearing in the middle of February, in the (SUPPLEMENT.) District of Gandia, raging through the month of June to the month of December, 1885, and producing a consid- erable mortality. It is remarkable that it attacked espe- cially the small towns more than the large cities. The Commune of Aldea de San Miguel, with only five hun- dred inhabitants, lost more than half of them in thirty- six days. Cholera also appeared on the Adriatic shores of Croa- tia, at the end of 1885, and in 1886 on many points of the Austro-Hungarian shore in Istria and in Dalmatia. The comparison of the mortality in France, Italy, and Spain is interesting. In France and Algeria together there were 13,000 deaths in a population of 39,000,000- 1 in 3,000 inhabitants. In Italy there were 35,000 deaths in 26,000,000, that is to say, 1 death in 600 inhabitants. In Spain there were 180,000 deaths, among 17,000,000 in- habitants, that is to say, 1 death in 100 inhabitants. So it appears that Italy was attacked five times more se- verely by the epidemic than France, and Spain six times more severely than Italy, and thirty to forty times more severely than France. Much has been said about the immunity of Portugal during the epidemic of 1884 and 1885 in Spain. Many reasons can be brought forward for this, viz., the slight tendency of the Spaniards to take refuge in Portugal, the geographical conditions, and finally, the prophylactic measures taken at the frontier. In spite of the imperfect quarantine and incoherent measures prescribed by the governments of South Amer- ica against the vessels coming from Europe, a ship from Genoa, the Perseo, carried cholera to Buenos Ayres, and the disease spread into the Argentine Republic, Uruguay, and Chili. From 1884 to 1886, a period'of three years, more than twenty vessels coming from the extreme Orient to Eu- rope, on passing through the Red Sea and the Suez Canal, had, either at the moment of their departure, or during the voyage, cases of cholera. The Cholera of 1889, 1890, 1891, and 1892 (the fifth epi- demic}.-In 1890 cholera appeared in Irak-Arabi, in Meso- potamia, in Persia, and in Syria, where it had not been seen for almost twenty years. It had been imported into the region bordering on the Red Sea and into Mecca, where it had not been since 1883, and it was observed in Spain, where it had been extinct since 1835. In summing up what we know of the origin of cholera in Irak-Arabi and in Mesopotamia in 1889 and 1890, the following must be our conclusions: It is very difficult to admit that the cholera of Irak- Arabi can be attributed to the revival of the old epi- demic of 1871, and if this hypothesis be excluded, we are obliged to accept the idea of importation, and it is only possible to think of one portal of entrance, the Per- sian Gulf, and one source in India, notably Bombay and its environs. We know from other sources that during and before the appearance of cholera in Irak-Arabi the mortality of this disease in Bombay and its environs reached the enor- mous number of more than six hundred deaths a week. The condition of the vessels of the British India Com- pany, that alone regularly frequent the Persian Gulf, bring passengers there, and frequently bring pilgrims from India, has been, to say the least, suspicious. Every- thing points, therefore, to the conclusion, which bears every appearance of truth, that the cholera penetrated into Irak-Arabi through Chat-el-Arab. The importation was performed in this way much more probably than by any other means. In regard to the epidemic of 1890-91 in Hedjaz, Proust offered the following conclusions to the Committee of Hygiene, which were accepted : 1, The cholera of Came- ran was imported by an English vessel coming from India ; 2, the cholera of Hedjaz appears to have been brought by the sea route ; 3, the pilgrimage to Mecca is a constant menace to the health of Europe ; 4, the meas- ures prescribed for the government of the pilgrims to Mecca have not prevented the cholera from developing, and it is therefore necessary to perfect these measures ; 5, the prophylactic measures prescribed by the Alexandrian 58 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Asiatic Cholera. Asiatic Cholera. Conference, at the time of the return of the pilgrims, have this year prevented the disease from gaining a foothold in Egypt and in Europe. There is reason, therefore, for con- tinuing this Conference and for giving it more authority and making it in reality international. There is also rea- son for increasing the means for isolation and disinfec- tion on the Red Sea. The epidemic which appeared in Spain in the month of May, 1890, and lasted until the end of November, gave rise to much discussion in regard to its origin that is not yet terminated. The epidemic of 1892, appearing first in Southern Rus- sia, and thence extending in isolated instances to ports in the north of Europe, appears to be quiescent at the time of present writing, but nearly all sanitary authorities look for a further outbreak during the coming year (1893). Thus far no cases of cholera, beyond a few isolated ones in New York {Amer. Jour, of the Med. Sci., June, 1892), have appeared in the United States for nearly twenty years. Transportability and Means by which the Dis- ease is Transported.-The transportability of the dis- ease is demonstrated by, first, the facts in regard to its propagation after it has been imported ; second, by the efficacy of certain measures of prevention ; third, by the general march of epidemics of cholera ; and fourth, by the development of epidemics in the infected localities. 1. Propagation.-Brochard, in " Du Mode de Propaga- tion du Cholera,'' Paris, 1861, reports a very large num- ber of observations favoring the idea of the transportabil- ity of cholera, and the number of instances proving this is so great that they need only to be spoken of to be ac- cepted. An illustration may be taken from the article by Huette, in the Arch. Gen. de Med., 5th series, vol. vi., p. 571. In speaking of cholera in Chatillon, he says that the first case was observed in the Faubourg du Puirault, in a workman, thirty-five years old, who was attacked im- mediately after his return from Oussoi, where he had gone to take care of his parents who were sick with the disease. His neighbors were very soon attacked, and the epidemic invaded the entire Faubourg du Puirault, where it remained concentrated for some little time. Finally, the inhabitants, frightened by the disease, scattered through Chatillon, and the cholera appeared indiscrim- inately throughout the city. The instance is interesting, because while the inhabitants remained in the Faubourg du Puirault, the disease stayed there, whereas, as soon as they scattered, it spread with them throughout Chatillon. Another instance, interesting as an example of the transmission of the disease by clothing, is given by the same authority, in speaking of the Commune of Oussoi. Madame Bresson, of the hamlet of Moulineuf, near Ous- soi, a precinct free from cholera, received a boarder from Paris June 27th, who on the next day showed the first symptoms of cholera, and died on July 3d. Some days after, a child of this woman was attacked and died on July 13th. On the same day Madame Bresson her- self was taken sick, and died on the 17th, after having been taken care of by two neighbors named Sahan and Moret, who died, one on the 16th and the other on the 24th. The husband of Madame Bresson died on July 26th. Madame Burette, who lived in the extreme end of the hamlet, washed the linen of the two women, Sahan and Moret, and was attacked with cholera. In this way, an epidemic was started that carried off eighteen per- sons in a very short time. Before the arrival of the per- son from Paris no case had been observed in this hamlet, that had been spared by the cholera both in 1852 and in 1849. Dr. Huette calls attention to the distribution of this hamlet of Moulineuf, which is composed of ten little collections of houses, separated by great distances. No cases of cholera were observed excepting in three of these collections of houses-first, that occupied by the Bres- son and Sahan families; second, that occupied by the Moret family ; and third, that occupied by the Burette family. The third collection of houses was situated at the extremity of the hamlet. No case of the disease was observed in the other houses, of which the inhabitants had had no connection with these three families. (SUPPLEMENT.) Proust (loc. cit., p. 165) quotes an occurrence illus- trating another series of facts. In 1854 the French army was collected at Varna, a short distance from the English army, Some detach- ments remained at Gallipoli, the original place of de- barkation. There was, besides, a small Anglo-French force of occupation in the Piraeus, and also some detach- ments at Constantinople. The armies were reinforced practically every day by new arrivals. The sanitary condition was satisfactory in all respects. On July 5th, the packet Alexandre arrived at Constantinople, having- left Marseilles on June 26th with five hundred men of the Fifth Regiment of Light Infantry, coming from Montpellier, and having passed through Avignon, where cholera was raging. It appeared on board, and three men died during the voyage to the Dardanelles. Four cholera patients were landed at the Piraeus, where the cholera broke out immediately, and made great ravages. The troops were disembarked at Gallipoli, where two new cases of cholera were immediately sent to the hos- pital, and the ship, having only a few passengers on board, sailed for Constantinople, where a quarantine was- imposed on it. On the other hand, it appeared that previous vessels sailing from Marseilles had already suf- fered from cholera, and that one of them had landed a patient in the military hospital at Constantinople. On July 15th, after new arrivals of cholera patients, the dis- ease spread at Gallipoli, and there appeared in the mili- tary hospital of Constantinople a choleraic focus. Fauvel, struck by the danger, proposed, and had adopted by the Council of Health at Constantinople, a momentary in- terruption of the communication between Gallipoli and Varna. The measures prescribed were not executed, and in spite of the insistence of Fauvel before the Mar- shal de Saint Arnaud, many ships sailing from Gallipoli passed the Bosphorus, and went directly to Varna, where free pratique was accorded them. Cholera then broke out in the army among the newly arrived soldiers and in the hospital. On August 5th the epidemic was violent at Varna, especially among the troops sent into the Do- brudscha. The English army was invaded, having the epidemic on board the fleet. In the Crimea, the epi- demic, helped on by the arrival of the fresh troops, con- tinued until 1856. The importation of cholera into Constantinople in 1865 equally deserves to be spoken of. Constantinople was in an excellent sanitary condition when the frigate Moukbiri-Sourour arrived from Alexandria, on June 28, 1865. She had passed more than five days on the voy- age, and therefore, in accordance with the rule that then held, free pratique was granted her, the surgeon having declared that there had been no illness during the voyage ; but this declaration was false. The evening of June 28th there were landed from this frigate tw'elve sick per- sons, of whom one was attacked with cholera, who died during the night, and eleven w ere affected with cholerine. It was learned on the next day that during the journey from the Dardanelles to Constantinople two choleraic bodies had been thrown into the sea. On June 30th nine other cases were landed. The ship was sent into quaran- tine at the mouth of the Black Sea. The patients were transported to the Marine Hospital, near the arsenal, and here one special circumstance should be noted. The road that went from the landing to the hospital being opposite, it was necessary to carry the sick past the bar- racks occupied by military workmen in the arsenal, and the first indigenous cases of cholera occurred among these workmen, and on board a corvette that was near their barracks. On July 3d one of these military workers was received at the hospital with a choleraic diarrhoea, and on the 5th presented all the symptoms of cholera. That same day a new case was furnished by the work- men, and another on the corvette spoken of above. The barracks were then vacated, and the workmen were placed in tents on the heights of Okmeidan ; neverthe- less, the disease continued to rage among them, and among the ships collected before the arsenal, and it attacked on the one hand the guard in the interior of this establishment, and on the other the w'orkmen at the 59 Asiatic Cholera. Asiatic Cholera. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Ministry of Marine, situated very near the barracks of the military workmen. On July 8th two cases occurred outside the arsenal, and from July 10th the epidemic com- menced to invade the quarter of Kassin-Pacha, near the arsenal, and inhabited by the workmen of whom we have spoken. It then propagated itself throughout the city. One more instance of the importation of cholera may be given, as illustrating that a single case, carried a great distance by rail, may give rise to an epidemic. Toward the end of the month of August, in 1865, cholera suddenly broke out at Altenburg, in Saxony, in the centre of Germany. The first case was that of Lady E , who had left Odessa on August 16th, and had arrived at Altenburg on the 24th, without having stopped on the journey. She travelled with a child of twenty-one months old, who was affected with diarrhoea. She went to her brother's, and sent for a physician to see her child, whose diarrhoea had become very severe. This woman, who was meanwhile well, said that at her departure from Odessa there had not been in that city any disease ; but this was an error, for some cases of cholera imported from Constantinople were already in the hospital in the lazaret, and, the day after the depart- ure of this lady, cholera appeared at Odessa. She said also, that having embarked to go up the Danube, every- body appeared to her to be well on board, although the vessel had passed by certain localities where cholera was raging; however that may be, three days after her ar- rival at Altenburg, on August 27th, and the very same day that the physician had visited her child, this lady fell ill; and the next day the physician recognized all the symptoms of Asiatic cholera. She died on the 29th. On the same day, in the same house, her sister-in-law was attacked, and died on the 30th. The child died on the 31st. From this house the cholera spread into the city and suburbs. The family of a workman, who died on September 13th at Altenburg, carried the disease to Werdeau, and the house occupied by this family was the point of departure of another epidemic that carried off two per cent, of the entire population of the city. 2. The Transportability of Cholera is Confirmed by the liesalts of Restrictive Measures.-We see always that a rigorous sequestration and a rigorous interruption of communication by land or sea, if that be possible, results in preserving certain places or certain countries, and in these facts is a powerful argument against any idea of the transmission of cholera through the air. In 1867 Messina and the whole of Sicily were entirely free from cholera, and yet vessels coming from infected countries daily passed through the narrow Strait of Messina. And again, during the epidemic of 1856 at Constantinople, the scholars of the Military School, to the number of five hundred, were rigorously sequestrated in the establishment, and escaped the cholera that was raging in the neighborhood ; and events that occurred at the lazaret of Fort Genoa, in Algeria, in 1884, demon- strated also the efficacy of isolation in order to prevent the transportation of the disease to the neighboring cities. 3. Transportability as Shown by the General Progress of Epidemics of Cholera.-If we look at epidemics as a whole, we see that they always follow the course of human cur- rents of travel. It is in the East, or in the countries bordering upon Europe, that we can best follow the development of this law, because in such places the routes are less frequented, and the demonstration is more striking. In order to pass from Persia into Russia in any way except by the great line of travel passing through Erzeroum, Tauris, and Natchischevan, there are only two ways-that over the Caspian Sea, and the land route that follows the western shore of this sea. Both of these routes pass by Recht, Astara, and Len- koran, and end both of them at Bakou, and in the same way cholera, in the epidemics of 1823, 1830, and 1846, always and invariably passed through Recht, Astara, Lenkoran, and Bakou. At the latter city the land route splits on the north. It continues to follow the western border of the Caspian Sea, and passes by Derbent, and reaches Astrachan exactly as does the sea route, and we have seen cholera at every one of its appearances, in (SUPPLEMENT.) 1823, 1830, and 1846, pass over this same line, passing by Bakou, Derbent, and Astrachan. In 1823 it stopped at Astrachan, while during 1830 and 1846 Astrachan was only one of the steps of its invading inarch. The second line of travel passes over the Caucasus. It leaves Bakou, passes by Tiflis, and follows the Caspian Sea to the Black Sea. The point of departure from the Caspian Sea is Bakou. The point of arrival on the Black Sea is Poti, or Trebizond. The epidemics of 1830 and 1846 divided, following both of the two routes that have been spoken of. One current followed the border of the Caspian Sea, another crossed the Caucasus. This progress of cholera, always following the same lines, is a striking illustration of the law formulated. It always follows the human currents, in the steps of the traveller. It is imported by man alone, and precisely the same point is shown if we follow the successive steps of the epidemics that have travelled by the sea route. As an illustration, the epidemic of 1854 in the Crimea was due to vessels coming from Marseilles, and carrying troops from an infected country. Cholera appeared suc- cessively at. every one of the points where these vessels touched. They landed at Messina, and Sicily was in- vaded. They touched at the Piraeus, and Greece was attacked. They stopped at Gallipoli, and cholera ap- peared at Gallipoli. Constant communication was being held between Gallipoli and the Dardanelles, Constanti- nople, and Varna. Cholera developed at all three places. The same was shown in the progress of the epidemic of 1865. It must not be supposed, however, that the asser- tion is made that cholera took the special direction from east to west; on the contrary, it radiated from India in all directions-north, south, east and west-according to the ease and number of the means of communication. 4. Transportability as Indicated by the Evolution of Epidemics in Infected Localities.-Many examples of this may be quoted, among which are the following : In Constantinople it is possible to trace out the suc- cessive extension of the disease up to the time of its general diffusion. At Constantinople it manifested itself first at the arsenal, where it had been carried by the sick who were landed from the ship Moukbiri-Sourour. From the arsenal it reached the neighboring quarter of Kassin- Pacha, and then a few cases appeared in different parts of the city, for the most part of persons who had fled from the quarter first attacked. Up to July 16th the total of the deaths from cholera in the entire city, except those at the Marine Hospital, reached 130, when suddenly it was learned that the disease had broken out with violence at Eini-Keni, a village situated on the Bosphorus, twelve or fifteen kilometres from the quarter where the epidemic had begun. It was established that the first case of cholera had appeared on July 11th, in a Turkish cafe, in a work- man coming from Kassin-Pacha ; that the next day many of the individuals who frequented this cafe fell ill, and two died ; that during the following days the disease was propagated in the quarter until the 16th, when, after the occurrence of several deaths among prominent families, a panic seized the whole population of the vil- lage, who tied in all directions. Mussulmans, Greeks, Armenians, and Jews fled into other villages and quarters of the city which were then unaffected, where they trans- ported the disease. The Jews in particular, who had been the most seriously attacked, and who carried with them their soiled clothing and their dead, became the especial propagating agents of the disease. At Kous- toundjouc, at Kas-Keni, and at Balata, the epidemic broke out immediately after the arrival of these fugitives. From this moment dates the generalization of the epi- demic. It is not necessary to add other examples. The same thing is shown in the history of every local epidemic that has been intelligently traced. It has been opposed to this idea of the transportability of cholera that sometimes a restrictive intercourse failed to arrest the progress of the disease ; but in all these cases the measures were either tardily employed, or ap- plied without scientific rule. Others have spoken of the immunity of countries which had not protected them- selves by any sanitary measures. The answer to this is 60 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Asiatic Cholera. Asiatic Cholera. the question, whether cholera, although it is a disease capable of spreading by infection, must, therefore, be possessed of a method of forcing this infection. And, in conclusion, no matter what the differences of opinion are, the law of transportability remains absolutely estab- lished by all the facts yet obtained in regard to cholera. Methods of Transportation of Cholera.-In a considera- tion of the question of the method of transportation of cholera, we are to look at two principal points, the agent of cholera, that is, the organism of the disease, and sec- ond, the medium. The agent of cholera is unquestionably a bacterium, having India for its origin. It extends itself, and reproduces itself indefinitely, and many media serve as vehicles for its transportation throughout the entire ■world, but this choleraic agent would be wholly power- less if it did not encounter favorable conditions for its development. The medium, therefore, is indispensable to its power, and this favorable medium is made up of certain telluric conditions, the surroundings, and so on. So far as the methods of transportation of cholera are concerned, therefore, we have to consider more the me- dium in which it appears than the cause of the disease itself. Fauvel has expressed this truth as follows : " That a fire is not proportionate to the spark which gives it birth, but to the combustibility and mass of the material that it encounters." So, frequently, a few cases, or one only, as at Altenburg, are sufficient to produce the explosion of an epidemic. The clinical consideration of the means of transporta- tion of cholera is to be made under the following headings: First, the transportation by men attacked by cholera, and the role played by the closets that have received chol- eraic excreta. A person arriving from an infected place is always necessary for the beginning of an epidemic. In other words, man himself is the most powerful agent for the spread of cholera, the specific micro-organism being found, as has been demonstrated by innumerable experiments, in the excreta. Washerwomen have been attacked by the disease after washing linen soiled by evacuations, while others, who had simply touched this linen, also contracted the malady. Budd relates (quoted by Hirsch in Schmidt's Jahrbucher, vol. xcii., p. 255) that in 1854 a person affected with cholera arrived in an English factory of 645 workpeople. There followed 144 deaths from cholera in five weeks. The disease de- veloped solely among those who made use of the closets where choleraic dejecta were deposited. Instances of this kind can be multiplied almost indefinitely. Second, the transportation by means of choleraic diar- rhoea. As illustrations of this, innumerable instances might be quoted, especially that mentioned by Budd in the reference given above. A person sick of diarrhoea came into the midst of a perfectly healthy population in a colliery, and died. Diarrhoea became general, and seventeen persons contracted cholera. The case of Dr. Alexander, in the Gazette Medical for 1849, is also an il- lustration of this point. There was not at Hamel, a vil- lage twenty-five kilometres from Amiens, any indication of cholera, when, on April 4th, from Paris, where chol- era existed, there arrived a soldier sick with diarrhoea. He was received into his parents' house where he re- mained three days. On the 14th he went to the Hotel- Dieu, and the same day his brother, who had come a number of times to see him, was attacked by foudroyant cholera, and died in twelve hours. His wife died three days afterward. The father, who had shown some symp- toms of cholerine, was attacked with cholera on the 11th, and died on the 15th. Another son of this man, seven- teen years old, and a child of four years, his grandson, were attacked with cholera, and got well. The father- in-law of the brother who had taken care of him and his daughter were attacked by cholera, but recovered. A child of eleven years, who was often at the house, and whose parents had taken care of the same brother and his wife, was attacked on the 14th, and died the follow- ing day. Third, can the bodies of persons dead of cholera communicate the disease ? Although the evidence seems to point toward this being a possible danger, it is not a serious one in civilized countries. Fourth, can cholera be transported by healthy indi- viduals ? This must be answered in the negative. The facts quoted that seem to show that this can be so, must be explained by supposing that the individuals who were believed to be entirely well were in reality sick of a choleraic diarrhoea, or else that they carried clothing or linen soiled with choleraic material. Fifth, can cholera be transported by living animals ? Animals are not susceptible to the disease. A certain number of experiments have succeeded in producing cholera in animals, but with great difficulty. There is no fact to support the supposition that animals can carry the disease, either on the skin or hair. Sixth, the transportation of cholera by means of cloth- ing, personal effects, and so on. The-disease cannot be so- transported unless these materials have been contami- nated by cholera dejecta. This, of course, is an exceed- ingly important point, for if soiled, the material may be dangerous ; if not soiled, there is no danger at all, even if it comes from cholera centres. It is of equal impor- tance to know whether contaminated objects have been packed up, or exposed to the air. A contaminated ob- ject exposed to free air for a definite time loses its power of transporting the virus. The Conference of Constan- tinople considered that a very short time was sufficient to do away with all danger, and recent bacteriological research has wholly confirmed this opinion. On the other hand, contaminated objects that have been packed up and kept closed from air retain their virulence for a greater or less time, as may be shown by many instances. Seventh, can cholera be transported by merchandise ? Although merchandise imported from India, whether to Suez, or directly to Europe, has never been known to- transmit cholera, this method of transportation is not ab- solutely impossible, and many of the materials brought from India-cloths, and so on-retain in their interstices a confined air that certainly might preserve and transport for a great distance the contagion with which they may be impregnated ; but although this is a possibility, it is not probable, and the Conference of Constantinople unanimously accepted the absence of proofs of the transportation of cholera by merchandise, while it ad- mitted the possibility of its being done, under certain conditions. Since that time, Zehnder, the Swiss del- egate to the Vienna Conference, in 1874, cited facts in favor of the danger of rags in transporting contagion (see the report of the International Sanitary Conference- of 1874, page 272). But at the Conference in Rome, in 1885, Koch disputed the interpretation that had been put upon these facts. Eighth, water is perhaps the most important agent in the spread of cholera, and evidence to this effect was ob- tained long before the discovery of the cholera spirilla. J. Simon brought out some facts in England showing it. At London thirteen deaths out of a thousand inhabi- tants occurred among those whose houses were supplied with river water in the neighborhood of the sewer. Tested at this point, the water yielded forty-six grains of solid residue to the gallon. In other houses in the city that were in the same hygienic condition, but not supplied with this water, the mortality was only three and seven- tenths in a thousand, but the water which they used had been taken from outside the city,and yielded only thirteen grains of solid residue to the gallon. At Halle, Delbruck noticed that in prison, where the epidemic had developed very largely, the wells commu- nicated with the drains. At Brachsted the epidemic arrested itself just as soon as a suspected well was closed. Delbruck explained the less intensity of the epidemic of 1867, compared with that of 1866, by the fact that the carrying of the water had been modified. Water was furnished almost pure in 1867, while up to the autumn of 1866 the conduits carried the water from the Saale through a region where all the discharges of the city were scattered. Ballot also spoke of the influence of impure water on the spread of cholera in Holland. 61 Asiatic Cholera. Asiatic Cholera. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Snow, in England, and innumerable other writers in Europe, India, and America, lay the greatest possible stress upon impure water as the special means for the conveyance of the infective agent of cholera. The contamination of water played an extremely im- portant part in the extension of cholera in Egypt in the epidemic of 1883. The Mussulman population of Egypt bathe very frequently, but they are not careful about the water that they use for drinking. At Damietta the water is exceedingly foul upon the points of the Nile from which the water-carriers fill their water-casks, and just at these places are the special spots selected for bathing. The houses along the bank discharge their foul material di- rectly into the river, and drains carry to it discharges from other houses, and from the mosques. According to Koch, these mosques play an extremely important role in the spread of cholera. The German cholera commission was able at Damietta to examine a number of mosques, the description of the arrangement of which is as follows : Only that part of the mosque that is di- rected toward Mecca is used for prayers. At the other end is an open space, in the centre of which is a tank for bathing, and sometimes this water remains several weeks without being changed, and surrounding the basin are a series of urinals and closets. The discharges from the whole are passed into the Nile, so that it is not strange that the infected material should be transported by such a water-supply. The epidemic of 1884 furnished new proofs in favor of the spread of cholera through the agency of water. Messrs. Marey, Brouardel, and Thoinot especially insisted upon this point. Marey, at the sitting of the Academy of Medicine, October 14,1884, said : " Among the influences that can cause the spread of typhoid fever or cholera there is one that by its intensity dominates all the others-that is the contamination of public water-supplies." If a number of epidemics of cholera be studied, it can be determined, in effect, that cholera easily follows watercourses ; that it is especially along small watercourses that it is prop- agated, is most frequent and striking. In order to explain this, there are but two hypotheses that are possible. First, brooks, torrents, or rivers flow in valleys that are often narrow and shut in, and the villages found there often can have no communication except with each other. When one is attacked, it is a perfectly simple matter that the others should be also in their turn. This explanation is very plausible ; for certain cases, and some epidemics, can be explained in no other way. The great rivers, the large watercourses, along which are scattered regions attacked by cholera, serve for the propagation of this disease, like the great roads of travel, in this way only, that they are lines of communication frequented by travellers. Second, water is certainly a propagating agent of cholera. It is the water of a torrent, a brook, or a small river, contaminated in one part of its course, that trans- ports the disease to the inhabitants on its borders that drink of the water, and innumerable instances can be brought forward to illustrate this point also. Proust (loc. cit., p. 216) speaks of the choleraic agent having for its vehicle of transportation either the air or the water, but the evidence in favor of the air as one of the transporting agents of cholera is nothing, and the weight of scientific evidence of late years militates against such a means of transportation. Altitude seems to have but slight influence upon the development of the disease up to a certain point, although Farr (in the Registrar-Gen- eral's Report on the Mortality of Cholera in England, London, 1852) has attempted to demonstrate that the mortality from cholera was in inverse proportion to the elevation. The objection to this is, that the less frequent occurrence of cholera on the most elevated points may be due to the fact that the less accessible points are more thinly inhabited. Moisture, taken in connection with the subsoil water, is a favoring cause of the greatest importance, and ob- servations in this direction have furnished the basis for Pettenkofer's theory of the connection of subsoil mois- ture with cholera. (SUPPLEMENT.) The development of the epidemics of 1836 and of 1854 seemed to coincide with the period of greatest diminu- tion of the subsoil moisture in Munich, and therefore the choleraic contagion with which the soil is impreg- nated appears to disengage itself more easily. Hirsch reached a similar conclusion. Kreuzer, in 1855, at Vien- na, and again Pettenkofer, at Munich, observed the same facts. Pettenkofer's theory differs from others, in that, putting aside the chemical composition of the earth, he attaches a special importance to its physical character- istics, its density, its porousness, etc. He considers that the condition of the subsoil of localities and of houses plays a role of special importance in the propagation of cholera, and upon this special cause he places the de- velopment of an epidemic, after an importation from without; and, studying almost exclusively the physical condition of the region, the compact or porous condition of the subsoil, he considers that not only the primitive earth, and the soils of the transition period, but also the secondary formations, produce immunity when they are exposed to air in the condition of rocks. On the other hand, every porous soil that is susceptible of imbibition can become easily impregnated with fluid, or with gas, and vegetable earths as well as silicious earths, may form "fat," always moist, lands, throwing out continual moisture about them, favoring the diffusion of the germs of cholera. Where the soil is made up of a compact cal- careous rock, cholera never becomes epidemic, and a few cases observed in such situations as the result of importation, do not propagate the disease. Pettenkofer's theory has two points that must be dis- tinguished from each other. First, the nature of the soil. The soil must be porous, easily permeable, and also easily impregnated by liquids and gas. This condition is a permanent one. Second, the level of the subsoil moisture. This level being movable, the effect is variable ; when subterranean waters have reached the maximum of their elevation, there is neither decomposition of organic materials, nor throwing off of miasms. If the subsoil moisture descends to a lower level, putrefaction begins, the miasmatic va- pors are thrown off more intensely, and just at this time the epidemic reaches its greatest development. This second point of his theory, certainly an ingenious ex- planation of certain cases, appears to be much more hypothetical than the first, the question of the porosity of the earth. To sum up, Pettenkofer's theory, while it scarcely has the value ascribed to it by him, certainly seems to be a partial explanation of the propagation of cholera by means of the porosity and moisture of the earth. Ninth, atmospheric conditions play a not very im- portant role, although the influence of season is manifest, and apparently storms sometimes seem to aggravate con- siderably an epidemic. Somatic Conditions.-Race or nationality has no in- fluence upon the development of cholera. * The special influences favoring it are those of misery, fatigue, cold, and depressing mental conditions, which, by diminishing the resisting power of the body, render it more suscepti- ble to the influence of the epidemic. Collections of hu- man beings, in other words, agglomeration, plays a very considerable role in the propagation of epidemics; so also do methods of transportation. Railroads are often the means of propagation, as was the case in the in- stance of Altenburg, quoted above. The epidemic of 1865, in Paris, was started by a woman who left Mar- seilles, with a choleraic diarrhoea, and was attacked with cholera upon her arrival in Paris. Transportation by caravans does not give much chance for the spread of the disease, when the distance passed over is of great extent ; in fact, a great desert is the best of all obstacles to the propagation of cholera. In ships is most often found united the conditions of crowding and confine- ment favorable for the development of the choleraic agent. Proust appears to believe that these elements do not have much potency if the entire ship's company come from the same infected region-in other words, have 62 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Asiatic Cholera. Asiatic Cholera. acquired an immunity in a choleraic focus ; but if the ship's company has received a partial renewal, if new persons have come on board among the acclimated pas- sengers, cholera finds a new favorable medium for attack, and, if aiding circumstances appear, the ship may be- come the centre of an intense epidemic. He goes on to speak of this " law of accustoming," in what takes place in armies, the great fairs, and the pilgrimages, for when cholera is carried into these great collections, if the mass of people have not undergone the " choleraic accli- mating," the explosion of the disease is rapid, and the mortality considerable, but only continues for a few days, and ceases soon. The Crimean War furnishes an example of the rapidity of development and intensity of the dis- ease among vessels free from the choleraic influence. At the commencement of April, 1855, there reached Constantinople from France, fifteen to twenty thousand troops, made up in part of the Imperial Guard. These troops had not, during their voyage, a single case of cholera among them. They camped on the heights of Masslak, in an extremely healthy situation, and at that time there were in the city of Constantinople but very few traces of cholera. The rolls of the French military hos- pitals gave only fifty-three cases during March, and the roll of April 11th showed none. In the Crimea the cases of cholera were also very few, and nevertheless the troops were hardly settled at Masslak, when, on the night of April 14th and 15th, cholera broke out among them, and a severe epidemic followed. Fauvel (" Meinoire lu a l'Acad. des Sciences," Paris, 1883) sums up this question of immunity in the following propositions : " 1. The ports of India that are the seat of endemic cholera are never the scene of a great epidemic. "2. This fact relates to the general, but not absolute, immunity enjoyed by the native population of these parts. " 3. This immunity does not exist in the endemic localities for strangers who are in a condition favorable for contracting the disease. These are especially the Mussulman pilgrims who come to Bombay to embark for Mecca. "4. The epidemics of cholera that develop in India, in the regions where the disease is not endemic, come from the places where it is endemic, and are favorable for attacking the Hindu pilgrimages. "5. The epidemics observed among the pilgrims to Mecca can also be traced to the localities where cholera is endemic. "6. A severe epidemic of cholera confers upon the country or upon the locality which it has attacked a more or less complete immunity, which is more or less durable, and of which it is impossible to formulate the law for Europe, but which in India appears to last for a num- ber of years, "7. In the Hedjaz, and in the sparsely populated parts of Arabia, cholera has but a feeble tendency to propagate itself among the native population. " 8. The fact of the existence of a great epidemic of cholera in any country whatever is a proof that cholera is not there endemic.' To sum up, new scientific facts bear upon the question of immunity and make them clear upon a side hitherto unknown. The etiology and prophylaxis, in especial, of cholera receive from these facts new indications, and these facts also appear to be the expression of a law' that includes an entirely different category of infectious dis- eases, w'hich leave after them an immunity of a greater or less extent." Period of Incubation.-The question of the period of incubation of cholera gives rise to a great deal of discus- sion. It appears, however, that in the immense majority of cases a period of a few days is sufficient for the incu- bation, and that sometimes this may require only a few hours. This fact is easy to observe if the beginning of the disease in a city or upon a ship be studied. The Cholera Conference at Constantinople concluded as follows : " That all the facts cited in regard to a period of incubation longer than a few days are based upon cases that are not conclusive, either because the premon- itory diarrhoea was comprised in the period of incubation, or because the infection could have occurred after the departure from the infected locality. The following is an instance: On November 3, 1848, upon the ship Swanton there were two hundred and eighty-nine emigrants for New Orleans, and the cholera did not break out on board until November 25th,-that is to say, the twenty-third day of the voyage,-and occasioned tliirteen deaths. A certain number of these emigrants came from points in Germany where the cholera existed. This long period of incuba- tion can be explained upon two hypotheses: either the passengers had with them clothing soiled with choleraic materials, which, placed in a confined air, could transmit cholera; or certain of the individuals embarked might have been affected at the time of their embarkation with a diarrhoea that might later have developed into true cholera. The duration of this premonitory diarrhoea has been much discussed, and in general it has been concluded that it does not last more than three days, and when it does pass this period, it is rarely prolonged beyond a week, and that therefore an individual isolated from all sources of contamination, and in whom the diarrhoea should be prolonged more than eight days after this iso- lation without presenting any characteristics of cholera, could be considered non-choleraic. But Griesinger among others dissents from this opinion, and declares that the period of incubation of cholera may be much longer. Bacteriological examination is the only method of set- tling the question. Description of the Disease.-Asiatic cholera, in individual cases, has no marked characteristics distin- guishing it from similarly violent attacks of "cholera nostras ; " the only absolute method of making a diagnosis in single cases is by the discovery of the spirillum of the disease and its identification. In general, an attack may suddenly develop, its onset being marked by great uneasi- ness, repeated discharges from the bowels, followed by syncope. This attack may overtake the victim while walking on the street in apparently good health. It is often preceded by a state of vague suffering, rapid pros- tration, deep colicky pains, anorexia, sometimes a diar- rhoea, profuse sweats, disturbance of the senses, and more or less of retardation of the pulse. After the development of the disease the symptoms follow each other in such a way as to allow of a division into two distinct periods. First Period.-This is marked by an increase in the number of dejections and acts of vomiting ; a flux is established which is at first serous or slightly bilious, and afterward becomes " choleraic." This term is used to designate those characteristic discharges of cholera which are liquid, whitish, grumous, sometimes resem- bling unclarified whey, sometimes a decoction of rice or oatmeal, and sometimes thickened meal, and nearly clear, which emit an insipid spermatic odor, and sometimes present traces of blood or bile. These evacuations are rarely absent, often continuing to the termination of the disease. Burning thirst, pain in the epigastrium, and prolonged hiccough are usual accompaniments. Intense cramps of the limbs occur, particularly in the calves of the legs ; the muscles are often in a state of tonic con- traction. Spasmodic movements, as involuntary flexion and extension of the fingers and toes, may often be seen. The pulse is very feeble, often imperceptible. The feat- ures are altered, trembling and great agitation come on, the pulse becomes suppressed : bluish spots appear, first upon the extremities ; the skin becomes blue or black almost everywhere ; the nails are livid and almost black, the fingers wrinkled, and the genital organs retracted. The volume of the body diminishes rapidly and percep- tibly ; the eyes sink in and are dull, with a bluish circle surrounding them ; the conjunctiva fades, respiration is slow and feeble, the breath cold, and the pulse is reduced to a mere oscillation. The secretions are arrested, espe- cially the urine, the voice is reduced to a whisper, the nose is cold and-rarely-gangrenous, the cornea is flat- tened and puckered ; spots of blood appear on the scle- rotic, viscid sweat on the face and limbs ; the intellect 63 Asiatic Cholera. Asiatic Cholera. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. becomes obscured, respiration is embarrassed, hiccough commences, and death follows, in the midst of an ap- parent calm. This is called the cold, livid, or asphyxic period. When patients escape death in this stage they enter upon the Second Period.-In this the coldness ceases to increase, warmth returns, the pulse improves and gradually be- comes febrile, the face regains color, the eye becomes animated, and a general reaction occurs. If recovery is to be easy and rapid, vomiting becomes less frequent, the diarrhoea remains, but the discharges no longer present the appearance peculiar to the disease ; the secretion of urine returns, nausea, thirst, and pains in the stomach cease to be felt, the pulse becomes regu- lar, and convalescence begins. If reaction is incomplete, the cold stage returns with renewed severity, or, on the other hand, if reaction be too severe, such accidents may occur as apoplexies, spasms, convulsions, local congestions and inflamma- tions, and occasionally latent pneumonia. Stupor is sometimes present, with some of the signs of the last stage of typhoid fever. Swelling of the parotid glands and various skin affections, as roseola, urticaria, ery- thema. erysipelas, etc., may appear toward the close of the disease. The average duration is from one to three days, but sometimes death occurs in less than six hours, and is occasionally delayed a long time-in one case for fifty days. Complications and Secondary Affections. - Complica- tions are rare, and apparently accidental ; among them peritonitis, jaundice, gangrene, oedema of the lungs, ery- sipelas of the face, abscesses, ulcerations of the eyelids, and aphthae may be mentioned as of occasional occurrence. Secondary affections are, however, very common. They may consist of gastro-intestinal inflammations-immedi- ate or occurring after some days of convalescence-or of affections of the respiratory organs. In other cases, per- sons who have apparently escaped the accidents of cholera have a secondary fever, described as of a typhoidal type -dry skin, tension and tenderness in the epigastrium, jactitation, dry tongue, bilious stools, and chills. Vari- ous skin eruptions occur, and temporary albuminuria has been observed following an attack of cholera. The most grave of the secondary affections, however, are those which affect the nervous system. The cerebral conges- tions during reaction are, in some cases, followed by a typical meningitis with trismus. Rayer's "Etat Cerebral cholerique " includes a group of phenomena distinct from those of meningitis, which supervene upon the cold stage ; the skin is cold, the pulse feeble, the head heavy, the countenance stupid, and sometimes the cholera tint remains. Another affection is a sort of non-febrile de- lirium, lasting for two or three days, and the spasmodic contraction of the forearm which occurs during conva- lescence. True intermittent febrile attacks, with initial chills, occurring every day during reaction, have also been observed. All these affections are, for the most part, more rapid than when occurring in an individual previously healthy. Course, Duration, and Termination.-If death does not occur during the algid stage, a peculiar transforma- tion in the disease takes place and reaction sets in. This reaction varies in different cases, being slow and tedious in some, and abrupt and rapid in others ; its course is not essentially modified by any antecedent disease, even those occurring as complications. In the vast majority of cases cholera runs its course with great rapidity, the greater number of attacks last- ing from eighteen to twenty-four hours, the shortest from one to six hours, and the longest from fifteen to twenty days. Its duration is the shortest at the height of an epidemic. The termination of epidemic cholera may be favor- able, the progress of recovery varying widely in different cases ; it may be complete in a few hours even, and the patient may return to his ordinary occupation ; on the other hand, it may be delayed until after a long and peri- lous struggle against complications and secondary affec- (SUPPLEMENT.) tions. There may remain a general debility such as is not often seen after any other disease ; the emaciated features, languishing expression, capricious appetite, ob- stinate gastralgia, colic, wakefulness, tendency to cold- ness, partial or general, and intellectual and moral dejec- tion persist for a long time. An attack has been known to change the whole constitution and temperament of a patient. One attack appears to furnish no immunity against another, and relapses are always to be feared. Forms.-The forms spoken of-the common or grave, such as has just been described, "cholerine,''' foudroyant cholera, and paralytic cholera, described by the Russians and Germans-are all merely the same disease, occurring in varying forms of intensity. Pathological Anatomy.-The alterations of the internal organs in a case of death from cholera bear little rela- tion to the violence of the disease. The appearances are about as follows : Emaciation is general, and there is marked lividity of the lips and nostrils. Rigor mortis is not rare before the warmth of the body has wholly de- parted. The peritoneal surface is sticky and covered with a viscid exudation ; the vessels of the mesentery are engorged with blood. The calibre of the intestinal canal is more often increased than diminished, and always con- tains some fluid choleraic matter. The fluid is blood- serum, and the thicker material found in it is made up of intestinal epithelial cells and mucus. The intestinal mucous membrane is usually normal in thickness, but is generally denuded of epithelium. The villi are swollen, giving the surface a velvety appearance, and Peyer's patches and the solitary follicles are much enlarged. The glands of the stomach and of the duodenum are enlarged, and the surface is largely denuded of epithe- lium. There are no special lesions of the other organs. The liver is rarely enlarged, but is usually congested with dark, thick blood. The gall-bladder is also generally distended with bile, which is thicker than normal. The biliary duct is not obstructed. The pancreas presents no marked alteration. The spleen, in rapid cases, is small, hard, and wrinkled upon its surface, of a deep red color on section, and sometimes dotted with ecchymoses; in slow cases it may be slightly enlarged and less deep red in color. The blood is thicker than normal, coagulates slowly, and the separation into clot and serum is very incomplete. The corpuscles are not altered in shape, but there is a remarkable diminution in the proportion of water and neutral salts, and a decrease in the amount of fibrin and albumin. The heart is usually soft and flabby, with ecchymoses in the pericardium. The left side is apt to be empty and contracted, the right distended with dark, thick blood. The arteries are, in general, nearly empty, the veins distended with blood. The pleunv are very frequently coated with a glutinous, stringy sub- stance, and ecchymoses often appear in the sub-pleural cellular tissue. The lungs are usually healthy, but pre- senting engorgements at the posterior portions. The bronchi are much congested, and may contain a white, stringy mucus, analogous to that found lining the intes- tinal canal. The condition of the brain and spinal cord, together with their appendages, is merely that of conges- tion without special lesion, although it has been declared that there is a sensible increase in their consistency. The ganglionic system presents no change worthy of notice. The muscles are often engorged with blood, and a very marked reddish-brown discoloration of the bones and of the teeth has been noticed in those dying of asphyxia. Renal congestion is the marked symptom in connection with the genito-urinary tract, and the straight tubules are often completely stripped of their epithelium. In those dying in the cold stage the bladder is empty and firmly contracted. Description of the Spirillum of Cholera and of Certain Organisms Allied to It. - The Nature of the Contagium Vivum of Cholera (see Sternberg's " Manual of Bacteriology,'' New York, 1892.).-Asiatic cholera is without doubt "due to a special organism-the so-called "comma bacillus" of Koch-this name being a misnomer, for the bacterium is not a bacillus, but a spirillum. 64 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Asiatic Cholera. Asiatic Cholera. The parasitic nature of the disease was suspected for a long time. A number of observers had noted the pres- ence,'in the cells, of bacteria answering the description of this special one, but it was not until the advance in methods of observation had progressed a long way that it was possible to isolate the organism, and study it under artificial conditions in such a manner as to obtain the evi- dence necessary to connect it with the process as a causal (SUPPLEMENT.) thicker than the bacillus of tuberculosis. It usually occurs in this situation singly, but not infrequently it is arranged in pairs, with the curves opposed to each other, and thus recalling the shape of the letter " S ". Under cultivation in bouillon it appears longer and thinner, and there are many true spirilla to be seen in the prepara- tions made from such a culture. A characteristic that is of especial interest, is its Fig. 17.-Cholera Vibrio. Intestinal Contents of a Man Dead of Chol- era. Cover-glass Preparation Stained with Fuchsine. (Fraenkel.) X 1000. Fig. 19.-Cholera Vibrio. Agar Culture, Twenty Hours Old. Cilia Bearing Cells. Cover-glass Preparation, Stained with Fuchsine. (Fraenkel.) X 1000. factor. It was in the year 1883 that Koch first dis- covered and described the spirillum of Asiatic cholera, which he first found during his investigation in Egypt during the epidemic there, and studied further during the following winter in India. The organism occurs especially in the small intestine, is generally wholly confined to the contents of the intestine and the glandular cul-de-sacs, but is occasionally found in the intestinal walls. It is exceptional to find it in any other part of the body, and it is not strange that investi- extreme motility, which has been demonstrated by Loff- ler to be due to a fine cilium placed at one end of the organism. Shape and motility are not, however, sufficient to dif- ferentiate this bacterium from others with similar char- acteristics-and there are many that possess such,-but the method of development upon the various culture- media is entirely characteristic, and, as shown by Koch, is all that is necessary for separating this one in particu- lar from the others that resemble it. It liquefies gelatine, Fig. 18,-Cholera Vibrio. - Bouillon Culture, Two Days Old. Cover- glass Preparation Stained with Fuchsine. (Fraenkel.) X 1000. Fig. 20. - Cholera Vibrio. Colonies on Gelatine Plate, Twenty-four Hours Old. (Fraenkel.) X 100. gations undertaken with the idea that cholera was a gen- eralized disease were not productive of results. The bacterium is found in large quantities in the dejecta, and sometimes-in fact not infrequently-in almost a pure culture. In the intestines and in the dejecta it presents the appearance of a short, thick rod, slightly curved in the long diameter, hardly half as long, but considerably but it does this slowly, and at the same time a certain part of this liquefied portion evaporates, and as a result there is a special appearance that can hardly be con- founded with anything else. At the upper portion of the gelatine, there is a round cavity full of air, and as the surrounding gelatine has remained solid, the appear- ance is that of a bubble of air in the midst of the upper part of the gelatine and above the liquefied part. The 65 Asiatic Cholera. Asiatic Cholera. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. appearance is wholly different when the organism found by Finkler is put under the same conditions, and equally so with the cheese-spirillum of Deneke. Description of the Cholera Spirillum.-Discovered by Koch, in 1884, in the excreta of cholera patients, and in the contents of the intestine of recent cadavers. The etiological relation of this organism to Asiatic cholera is now generally admitted by bacteriologists. (SUPPLEMENT.) By Lbfiler's method of staining, the rods may be seen to have a single terminal flagellum. In old cultures the bacilli frequently lose their characteristic form, and be- come variously swollen and distorted. Hueppe has de- scribed the appearance of spherical bodies in the course of the spiral filaments which he believes to be reproductive elements, the so-called arthrospores. The cholera bacil- lus stains with the usual aniline colors, but not as quickly Fig. 21.-Cholera Vibrio. Colony on Gelatine Plate, Forty-eight Hours Old. (Fraenkel.) X 150. Fig. 23.-Cholera Vibrio. Needle Culture in Gelatine, Six Days Old. Natural Size. (Fraenkel.) Morphology.-Slightly curved rods, with rounded ends, from 0.8 p to 2 long, and about 0.3 to 0.4 p, broad. They are usually but slightly curved, like a comma, but are occasionally in the form of a half-circle, or two united rods curved in opposite directions, form- ing an S-shaped figure. Under certain circumstances these curved rods may develop into long spiral filaments, and in hanging-drop cultures the S-shaped figures may also be seen to form the commencement of a spiral. In stained preparations the spiral character of the long flla- as many other bacteria. It is best stained by a watery solution of fuchsin. It will not stain by Gram's meth- od. Sections may be stained by Lbfiler's methylene blue. Biological Characters.-It is an aerobic, facultative anaerobic, liquefying, motile spirillum, grows in the usual culture-media at the room temperature, more rapidly in the incubator, does not develop above 42° C. or below 14° C., does not form endogenous spores. It forms arthrospores, according to Hueppe. In gelatine plate cultures, at 22° C., at the end of twenty-four hours Fig. 22.- Cholera Vibrio. Needle Culture in Gelatine, Forty-eight Hours Old. Natural Size. (Fraenkel.) Fig. 24.-Cholera Vibrio. Needle Culture in Gelatine, Three Days Old. Natural Size. (Fraenkel.) ments is often obliterated, or nearly so. When develop- ment is very rapid, the short curved rods, or S-shaped spirals, only are seen, but in hanging-drop cultures, or in media in which the development is retarded by an unfavorable temperature, the presence of a little alcohol, and so on, the long spiral filaments are quite numerous, and it is quite generally agreed that the so-called comma bacillus is really only a fragment of a true spirillum. small white colonies may be perceived in the depth of the gelatine. These grow toward the surface, and cause liquefaction of the gelatine in the form of a fun- nel that gradually increases in depth, and at the bottom of -which is seen the colony, in the form of a small white mass. As a result of this, the plates on the second or third day appear to be perforated with numerous small holes ; later, the gelatine is entirely liquefied. Under a 66 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Asiatic Cholera. Asiatic Cholera. low power, the young colonies, before liquefaction has commenced, present a somewhat characteristic appear- ance. They are of a white, or pale yellow color, with a more or less irregular outline, the margins being rough and uneven ; the texture is closely granular, and the sur- face looks as if it was covered with little fragments of broken glass, while the colony has a shining appearance. When liquefaction commences, an ill-defined halo is first seen to surround the granular colony, which by trans- mitted light has a peculiar roseate hue. In gelatine needle cultures development occurs all along the line of inoculation, but liquefaction of the gel- atine occurs at first only near the surface. On the sec- ond day, at 20° C., a short funnel is formed that has a comparatively narrow mouth, the upper portion contain- ing air ; just below this is the whitish viscid mass. At the end of from four to six days, the funnel, having increased in depth and diameter, may reach the walls of the test-tube In from eight to fourteen days the up- per two-thirds of the gelatine is completely liquefied. Owing to the slight liquefaction occurring along the line of growth the first three or four days, the central mass that has formed along the line of inoculation set- tles down as a curved or irregularly bent yellowish- white thread, in the lower part of a slender tube filled with liquefied gelatine, the upper part of which widens out, and is continuous with the funnel above. On the surface of nutrient agar a moist, shining, white layer is formed along the line of inoculation. Blood- serum is slowly liquefied. On potato in the incubator, a rather thin semi-transparent brown, or grayish-brown layer is developed. In nutrient bouillon, the development is abundant and rapid, especially in the incubator. The fluid is only slightly clouded, but the spirilla accumulate at the sur- face, forming a wrinkled membranous layer. Sterilized milk is also a favorable culture-medium. In general this organism grows in any fluid contain- ing a small quantity of organic material and having a slightly alkaline reaction. An acid reaction of the cult- ure-medium prevents its development as a rule, but it has the power of gradually accommodating itself to the presence of vegetable acids, and grows upon potatoes (in the incubator only) which have a slightly acid reaction. Abundant development occurs in bouillon which has been diluted with eight or ten parts of water, and the experiments of Wolifhugel and Riedel show that it also multiplies to some extent in sterilized river- or well- water, and that it preserves its vitality in such water for several months, but in milk or water containing other bacteria it dies out in a few days. This organism is de- stroyed, in recent cultures, in nutrient gelatine at 52° C., as determined by Sternberg, the time of exposure being four minutes. A few colonies only develop after expos- ure to a temperature of 50° C. for ten minutes. In Kitasato's experiments ten or even fifteen minutes' expos- ure to a temperature of 55° C. was not always success- ful in destroying the vitality of the spirilla, although in certain cultures exposure to 50°C. for fifteen minutes was successful. The low resisting power to heat, desic- cation, and chemical agents, indicates that this organism does not form spores, and many bacteriologists agree that this is the case. Hueppe has described a mode of spore formation which is different from that occurring among the bacilli, that is, the formation of so-called arthrospores. These are said to be developed in the course of the spiral threads, not as endogenous, refractive spores, but as spherical bodies with a somewhat greater diameter, and somewhat more refractive; but this method of spore formation has not been observed by others who have investigated the question, and cannot be considered as established. The test for the presence of the cholera spirilla origi- nated by Bujwid and by Dunham consists in the reddish violet color produced in the bouillon cultures containing peptone, or in cultures in nutrient gelatine, when a small quantity (five to ten per cent.) of sulphuric acid is added to the cultures. According to Fraenkel this test (SUPPLEMENT.) serves to distinguish it from the ordinary bacteria of the intestine, and from the Finkel-Prior spirillum, but not from Metschnikoff's spirillum. The reaction is shown by bouillon cultures which have been in the incubator for ten or twelve hours, and by gelatine cultures in which liquefaction has occurred. The sulphuric acid should be quite pure. The color quickly appears, and is reddish violet or purplish red. According to Sal- kowski, the red color is due to the well-known indol reaction, which in cultures of the cholera spirillum is ex- ceptionally intense and rapid in its development. The most satisfactory method for obtaining the " chol- era-red " reaction,-as we have had lately abundant oppor- tunity to verify,-is that of Beyerinck (Cat. f. Bact. ii. Parasit. Bd. xii. S. 715) in which cultures are made in filtered neutralized one-half per cent, solution of com- mercial peptone, at 37° C. After twelve to twenty-four hours the cultures are cooled, and from two to five drops of C. P. Sulphuric Acid are added. If the spirillum be present, a very marked and beautiful rose-violet color is produced in the course of a few moments. A test which is said to distinguish cultures of the cholera spirillum from the spirillum of Deneke and that of Finkler-Prior has been suggested by Cahen. This consists in adding a solution of litmus to the bouil- lon, and in making the cultures at 37° C. The cholera Fig. 25.-Cholera Vibrio. Bouillon Culture, Three Weeks Old. Invo- lution Forms. Cover-glass Preparation, Stained with Fuchsine. (Fraenkel.) cultures show on the following day a decoloration which does not occur at this temperature with the other spiril- lum named. For determining as promptly as possible whether certain suspected excreta contain the cholera spirilla, a little of the material may be used to inoculate greatly diluted bouillon, gelatine plates being made at the same time. At the end of ten or twelve hours the cholera spirilla, if present, will already have formed a characteristic wrinkled film upon the surface of the bouillon. A little of this should be used to start a new culture in bouillon, and a series of gelatine plates made from it, after which the cholera test may be applied. The result of this, in connection with the morphology of the micro-organisms forming the film, and the character of growth in the gelatine plates, will establish the diagnosis, if the cholera spirillum is present in considerable num- bers ; if but few are present in the original material it may be necessary to make two or more series of plates and bouillon cultures before a pure culture can be ob- tained. and a positive diagnosis made. Pfeiffer has just published (in 1892) bis researches upon the cholera poison. He finds that recent aerobic cultures of the cholera spirillum contain a specific toxic substance fatal to guinea-pigs in extremely small doses. This substance stands in close relation with the bacterial cells, and is perhaps an integral part of the same. The spirilla may be killed by chloroform, thymol, or 67 Asiatic Cholera. Asiatic Cholera. BEFEBENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) by desiccation without apparent injury to the toxic char- acter of this material. It is destroyed, however, by absolute alcohol, by concentrated solutions of neutral salts, and by the boiling temperature, and secondary products are formed which have a similar physiological action, but are from ten to twenty times less potent. Similar toxic substances were obtained by Pfeiffer cles of Lieberkuhn, and in some cases were seen between; the epithelium and the basement membrane. As a rule, the spirillum is not present in vomited material, but Koch found it in small numbers in two cases, and Nicati and Rietsch in three. All observers have found the or- ganism always present in cases of true cholera ; on the other hand, very numerous control experiments fail to show its presence in the intestinal contents of healthy persons, or in that of those dead from other diseases. Nicati and Rietsch observed a certain degree of at- tenuation in the pathogenic power of the spirillum, after it had been cultivated for a considerable time at from 20° to 25° C., and the observation has since been made that cultures which have been kept up from Koch's original material have no longer the original pathogenic power. Cunningham in his recent publications gives the fol- lowing conclusions as the result of his own bacteriolog- ical studies : 1. In many undoubted cases of cholera he has failed to find the " comma bacilli." 2. In one case he found three different species. 3. From sixteen cases in which he made cultures he obtained ten different kinds of curved bacilli, the char- acters of which are given in his report. It is possible that in India, which appears to be the Fig. 26.-Tooth-scraping. Curved Bacilli, Spirochaete and Leptothrix. Cover-glass Preparation, Stained with Gentian Violet. (Fraenkel.) X WOO'. from cultures of Finkler-Prior's spirilla, and from the spirilla of Metschnikoff. The spirillum is not found in the blood, nor in the various organs of individuals dead of cholera, but is al- ways found in the discharges during life, and in the con- tents of the intestines examined immediately after death, frequently in almost a pure culture in the colorless rice- water discharges. It is evident, therefore, that the mor- bid phenomena must be ascribed to the absorption of toxic substances formed during its growth in the intes- tine. In cases which terminated fatally after a very Fig. 28.-Finkler-Prior's Vibrio. Colony on Gelatine Plate, Twenty-four' Hours Old. (Fraenkel.) X 100. permanent habitat of the cholera spirillum, many varie- ties of this micro-organism may exist, but extended re- searches made in the laboratories of Europe show that Cunningham is mistaken in supposing that spirilla re- sembling " comma bacilli " are commonly present in the intestines of healthy persons. Sternberg says that in very extended researches, made in the United States and in Cuba, he has never found any micro-organism re- sembling Koch's cholera spirillum, in the dejecta of pa- tients with yellow fever, or of healthy individuals, or in the intestinal contents of yellow fever cadavers.' The organism most likely to be confounded with the cholera spirillum, and from which it must be differenti- ated by the methods of cultivation, as well as by the aid of the microscope, is the spirillum of Finkler-Prior, other- wise called the vibrio proteus. It was obtained by Fink- ler and Prior in 1884, from the faeces of patients with cholera nostras, after allowing the dejecta to stand for some days. Subsequent researches have not sustained the view that this spirillum is the specific cause of cholera nostras. Morphology of the spirillum of Finkler-Prior : It re- sembles the spirillum of Asiatic cholera, but the curved segments are somewhat longer and thicker, and not so uniform in diameter, the central portion being usually thicker than the somewhat pointed ends ; it forms spiral filaments which are not as numerous, and are usually Fig. 27.-Finkler-Prior's Vibrio. Gelatine Culture. Cover-glass Prep- aration, Stained with Fuchsine. (Fraenkel.) X 1000. brief sickness Koch found but very slight changes in the mucous membrane of the intestine, which was slightly sw'ollen and reddened ; but in more protracted cases, the follicles and Peyer's patches were reddened about their margins, and an invasion of the mucous membrane by the organisms was observed in properly stained sections. They penetrated especially the foili- 68 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Asiatic Cholera. Asiatic Cholera. shorter than those formed by the cholera spirillum. In unfavorable media other forms are common, such as large oval, spherical, or spindle-shaped cells. It has a single flagellum at one end of the curved segments, which is from one to one and a half times as long as these. It stains with the usual aniline colors-best with a watery solution of fuchsin. Biological Characters: Is an aerobic and facultative anaerobic, liquefying, motile spirillum ; spore formation not demonstrated ; grows in the usual culture-media at the room temperature. Upon gelatine plates small, white punctiform colonies may develop at the end of twenty-four hours, which under the microscope are seen to be finely granular, and yellowish, or yellowish-brown in color. Liquefaction of the gelatine around these colonies progresses rapidly, and at the end of forty-eight hours is usually complete in plates where they are numerous. Isolated colonies on the second day form saucer-shaped depressions in the gelatine, the size of lentils, having a sharply defined border. In gelatine needle cultures, liquefaction progresses much more rapidly than in similar cultures of the cholera spirillum, and a funnel of liquefied gelatine is to be seen on the second day, so that by the end of a week the gelatine is usually completely liquefied. Upon the surface of the liquefied medium a whitish film is seen. Upon agar a moist, slimy layer covering the entire sur- face is quickly developed. The growth in blood-serum is rapid and causes lique- faction of the medium. Upon potato this spirillum grows at the room temper- ature, and produces a slimy, grayish-yellow glistening layer, which soon extends over the entire surface. The cholera spirillum does not grow upon potato at the room temperature. The cultures give off a fairly strong pu- trefactive odor, and, according to Buchner, in media con- taining sugar an acid reaction is produced as a result of their development. They have a greater resistance to desiccation than the cholera spirilla. Pathogenesis : Pathogenic for guinea-pigs when in- jected into the stomach by Koch's method, after previ- ous injections of carbonate of soda, but a smaller pro- portion of the animals die from such injections (Koch). At the autopsy the intestine is pale, and its watery con- tents, which contain the spirilla in great numbers, have a penetrating, putrefactive odor. Another organism resembling that of Asiatic cholera is the spirillum of Deneke, called the cheese, or the spi- rillum tyrogenum, which was obtained by Deneke in 1885 from old cheese. Morphology of the spirillum of Deneke : Curved rods, and long spiral filaments resembling the spirilla of Asiatic cholera. The diameter of the curved segments is some- what less than that of the cholera spirillum, and the turns in the spiral filaments are fewer and closer together. The diameter of the segments is uniform throughout, so that this organism more closely resembles the cholera spiril- lum than does the preceding. It stains with the usual aniline colors-best with a watery solution of fuchsin. Biological characters : Is an aerobic and facultative anaerobic motile spirillum ; spore formation not de- monstrated ; grows in the usual culture-media at the room temperature, more rapidly than the cholera spi- rillum, and less so than that of Finkler and Prior. Upon gelatine plates small pin-point colonies are developed, which on the second day are about the size of a pin's head, and have a yellowish color. Under the microscope they are seen to be coarsely granular, of a yellowish-green color in the centre, and paler toward the margins. The outlines of the margins are sharply defined at first, but later, when liquefaction has commenced, the sharp con- tour is no longer seen. At first, liquefaction of the gel- atine causes funnel-shaped cavities resembling those formed by cholera spirilla, but liquefaction is more rapid. In gelatine needle cultures liquefaction occurs all along the line of puncture, and the spirilla sink to the bottom of the liquefied gelatine in the form of a coiled mass, while a thin yellowish layer forms upon the sur- face. Complete liquefaction usually occurs in about two weeks. Upon the surface of agar a thin yellowish layer forms along the needle-track. Upon potato, at a temperature of 37° C., a thin yellow Fig. 29.-Finkler-Prior's Vibrio. Needle Culture in Gelatine, Forty- eight Hours Old. Natural Size. (Fraenkel.) layer is usually developed, but not always, and it con- tains as a rule beautifully formed spiral filaments. Pathogenesis : It is pathogenic for guinea-pigs when introduced into the stomach by Koch's method ; three out of fifteen animals treated in this way died. Still another organism resembling the spirillum of Asiatic cholera is: the spirillum of Metschnikoff, ob- tained by Gameleia in 1888, from the intestinal contents of chickens dying of an infectious disease which pre- vails in certain parts of Russia during the summer months, and which in some respects resembles chicken Fig. 30.-Vibrio of Metschnikoff. Gelatine Culture. Cover-glass Prep- aration, Stained with Fuchsine. (Fraenkel.) X 1000. cholera. His experiments show that the spirillum under consideration is the cause of the disease referred to, which he calls gastro-enteritis cholerica. Morphology of the spirillum of Metschnikoff: Curved rods with rounded ends and spiral filaments. The curved segments are usually somewhat shorter, thicker, and more decidedly curved than is the spirillum of Asiatic cholera. The size differs very considerably in the blood of inoculated pigeons, the diameter being sometimes 69 Asiatic Cholera. Asiatic Cholera. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) twice as great as that of the cholera spirillum, and at other times about the same. A single long undulating flagellum may be seen at one extremity of the spiral fila- ments or curved rods in properly stained preparations. It stains with the usual aniline colors, but not by Gram's method. Biological characters: An aerobic, facultative anae- robic (?), liquefying motile spirillum. According to Ga- maleia, endogenous spores are formed by this spirillum, but Pfeiffer does not confirm the observation, and it must be considered extremely doubtful, in view of the slight resistance to heat (killed in five minutes by a tem- perature of 50° C.). Grows in the usual culture-media at the room temperature. Upon gelatine plates small white pin-point colonies are developed at the end of twelve to sixteen hours. These rapidly increase in size, and cause liquefaction of the gela- tine, which takes place, however, much more rapidly with some than with others. At the end of three days, large saucer-shaped areas of liquefaction may be seen, resem- bling those produced by the Finkler-Prior spirillum, the contents of which are turbid, while other colonies have produced small funnel-shaped cavities filled with trans- parent liquefied gelatine, resembling colonies of the cholera spirilla of the same age. Under the microscope cept for very large doses. A few drops of a pure cult- ure inoculated subcutaneously in pigeons, or injected into their muscles, cause their death in eight to twelve hours. At the autopsy an excessive subcutaneous oedema is found in the vicinity of the point of inocula- tion, and a superficial necrosis may be observed. The blood and the organs generally contain the vibrio in great numbers, showing that the animals die from general in- fection-acute septicaemia. In spite of all that has been said since the first an- nouncement by Koch that he considered his spirillum to be the cause of cholera, and the many assertions to the contrary, the relationship between the two to-day is practically universally admitted. The opinion to this effect is based upon a number of reasons, some of which are as follows : 1. The spirillum of Koch has never been found in any other situation, a point that has been established by in- numerable observations. 2. This spirillum is found in all cases of Asiatic chol- era, without exception, provided that the case is not too far advanced. In such a case there has been a secondary infection, that has killed out the true organism and masked its effects. (To this class must be assigned Em- merich's "Naples bacillus.") Ever since the first an- Fig. 31.-Vibrio of Metschnikoff. Needle Culture in Gelatine, Forty- eight Hours Old. Natural Size. (Fraenkel.) Fig. 32.-Vibrio of Metschnikoff. Pigeon's Blood. Cover-glass I'repara- tion, Stained with Fuchsine. (Fraenkel.) X 1000. the larger liquefied areas are seen to contain yellowish- brown granular masses, which are in active movement, with the margins surrounded by a border of radiating filaments. In gelatine needle cultures the growth resembles that of the cholera spirilla, but the development is more rapid. Upon agar at 37° C. a yellowish layer resem- bling that formed by the cholera spirilla is quickly de- veloped. Upon potato no growth occurs at room temperature, but at 37° C. a yellowish-brown or chocolate-colored layer is formed, which closely resembles that produced by the cholera spirillum under the same circumstances. In bouillon at 37° C. development is extremely rapid and the liquid becomes clouded and opaque, having a grayish-white color, while a thin, wrinkled film forms upon the surface. When muriatic or sulphuric acid is added to a culture in peptonized bouillon, a red color is produced, similar to that in cultures of the cholera spirillum, and even more pronounced. In milk at 35° C. rapid development occurs, and the milk is coagulated at the end of a week. The precipitated caseine accumulates at the bottom of the tube in irregular masses, and is not redissolved. The milk acquires a strongly acid reac- tion, and the spirilla quickly perish. Pathogenesis : It is pathogenic for chickens, pigeons, and guinea-pigs. Rabbits and mice are refractory, ex- nouncement of this discovery by Koch, observers have carried out his assertions in all parts of the world where cholera has been investigated at all-in France, Italy, Austria, Hungary, Germany, India, China, Japan, etc. 3. This spirillum is found in slight cases as well as in severe. It is present in the beginning of the attack, and it is located in the intestine, that is to say in the region es- pecially attacked by the disease, and in which occur the initial and essential lesions. The attempts to add to these arguments the more deci- sive one of successful inoculation experiments, were at the first not satisfactory in their results. Nicati and Bietsch were the first to secure successful results, which they obtained by introducing pure cultures of the or- ganism into the duodenum of guinea-pigs, in which animals they had previously tied the ductus choledochus. By these experiments they obtained symptoms extremely analogous to those of true cholera, and Koch also suc- ceeded in the same direction by passing the infectious- material (pure cultures) into the stomach by an oesopha- geal catheter. In his experiments the animals had been previously narcotized by the injection of tincture of opium, this to prevent peristalsis, and their stomachs- had been made alkaline by the introduction of carbonate of soda, a solution to make the stomach alkaline being necessary, because the spirillum of Asiatic cholera will not develop in an acid medium. 70 BEFEBENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Astatic Cholera. Asiatic Cholera. Doyen has shown that by introducing alcohol into the stomach the alkaline solution and the tincture of opium may be dispensed with. But, however the experiments may be conducted, they all show one important thing- the great necessity for a healthy condition of the gastro- intestinal tract for the avoidance of infection with chol- era. Dyspeptics and alcoholics have been shown in all epidemics to be especially fatally attacked by the dis- ease. It cannot yet be affirmed that the absolute proof of the production of cholera by the specific spirillum has been obtained, because the methods employed in the experiments mentioned above leave too many loop-holes open for the occurrence of accidents, and yet the evidence is so nearly complete that there seems to be no reason for any doubt ; the more especially as the exact experi- mental evidence can probably never be obtained, because none of the lower animals, so far as is known, are sus- ceptible to cholera under natural conditions. The near- est approach to an actual experiment upon man is the case of one of the members of one of the cholera courses held in Berlin in the winter of 1884r-85. This man, a physician, was attacked with " cholerine,'' and after some suffering, but no dangerous symptoms, recovered, the cholera spirillum being isolated from the discharges at various times during his illness. There seems to be no doubt that this was a case of true cholera, arising from some carelessness upon the victim's part in hand- ling the cultures with which he had to deal in the labo- ratory, for there were no cases of cholera in Berlin at the time, nor had there been for a long time previous. The entrance of the spirilla is undoubtedly effected by means of the gastro-intestinal tract, and there has not been a particle of evidence from experimental work to favor the theory of Pettenkofer that it ever enters from the air and through the respiratory region. The acidity of the gastric juice is extremely unfavor- able to the growth of the organism, and this explains the liability of the persons with functional or organic disease of the stomach to the attacks of the disease, for in these instances the reaction of the gastric juice is altered or modified so as to allow of the spirillum living until it has passed this point of danger and has reached the in- testine, where there are more favorable conditions for its development. Nicati and Rietsch, and Van Ermengen determined the toxicity of cultures of this organism when they had been deprived of the bacteria, either by filtration or by heating. In 1885, Nicati and Rietsch, by treating similar cultures with alcohol, succeeded in extracting a substance that killed guinea-pigs and rabbits, with the production of cramps and a lowering of temperature. Brieger studied the various chemical bodies that appeared in the cultures of the cholera spirillum ; among the number there were convulsivants, methyl-guanidine and a base, C3HeAz2, a febricant poison, and compounds that pro- duced inflammation and necrosis. More recently, Brie- ger and Fraenkel have isolated a toxalbumin, and Petri has determined the presence of a less active substance, toxopeptine. Hueppe and Scholl have perhaps made as important researches as any in their work upon cultures that have been deprived of free access of oxygen. From such cult- ures they succeeded in obtaining a peptotoxine that in a dose of 5 c.c., killed guinea-pigs in forty minutes, the animal presenting paralytic symptoms after ten minutes and convulsions after a quarter of an hour. This is a more active poison than was obtained before and was got in larger quantities : an egg after inoculation with a pure culture produced at the end of eighteen days enough to cause the death of ten guinea-pigs. The im- portance of this is seen when it is remembered that the spirilla are deprived of the access of oxygen when they are developing in the human intestine, and according to these experiments are therefore under the most fav- orable conditions for the development of this peculiar toxine. A temperature of from 30" to 40° C. is the most fav- orable for the development of the cholera spirillum, but it will grow slowly at a temperature as low as 17° C. It ceases to grow at a temperature lower than this, but its vitality is not destroyed, and it grows well when the temperature is again raised ; at 10° C. of cold its vitality has been retained, but, on the other hand, a temperature of as low as 56° or 60° C., is sufficient to destroy its vi- tality in a short time. Inasmuch as no true spore-formation has been seen to occur in the development of this organism, it is not sur- prising that drying was shown, first by Koch, to destroy its vitality in a very short time-less than twenty-four hours. But conclusions drawn from his experiments may be misleading, for while this destruction of vitality by drying does occur in a very short time in the case of thin layers, it does not take place under less favorable con- ditions. This was shown by Kitasato, and by Berkholtz, who saw the vitality retained, the one for thirteen days, and the other for thirty-eight, in experiments in which silk-threads were used for holding the organism during their subjection to desiccation. It should be said, how- ever, that these experiments were conducted in a desic- cator, which did not permit the free access of oxygen to the bacteria, and it is undoubtedly the case that this agent is as important as any in the production of the re- sult that it was desired to obtain. The organism has been found in ordinary drinking- water by Koch in one of the tanks in India, in the neigh- borhood of which an epidemic of cholera had broken out. It does not live long in distilled water, however, as shown by Meade Bolton, Wolfhiigel and Riedel, and others. Strauss and Dubarry found that it lived for fourteen days in one case, and Kraus, for two days only. Other observers have not seen it retain its vitality for anything like so long a time. In ordinary sterilized water it lives longer, according to the experiments of Wolfhiigel and Riedel, as well as Pfeiffer, who found that it existed for seven, nine, and twelve months, while Hochstetter lengthened this time to three hundred and ninety-two days. Its vitality appears to be shorter again in non-sterilized water. Strauss and Dubarry found it to be thirty days in one specimen, and thirty-nine in an- other ; while a mixture of other bacteria shortens the time still more. This latter point is one of great impor- tance and has been studied by many experimenters. Koch determined that the organism ceased to live in ordinary drinking-water at the end of six or seven days, and that after twenty-four hours' contact with sewer-water they appeared to be dead ; while Schiller, on the other hand, found that they retained their vitality in the same me- dium for fourteen days. Petri, in an effort to find out how long they lived in the intestine after burial, was able to demonstrate them in cultures at the end of nineteen days. Certain foods may be of great importance in transmitting the organism, as in the case of milk, in which it grows with great energy and without producing the least visible alteration ; it has been shown that it will live for at least four days in milk, and forty-eight in butter. Most of these experiments were conducted with the idea that this organism is an aerobic one, but Hueppe has shown that it is also an anaerobic, and that grown under these conditions the spirillum is possessed of a greater virulence, but it is also easier of destruction. As sug- gested by Proust, this may explain the comparative rarity of immediate infection. The bacterium coming from the intestine as an anaerobic organism is possessed of feeble resisting powers and is therefore easily destroyed, and it is only after it has taken on the conditions of aero- bic growth that are furnished it in the medium in which it develops outside of the body that, it finds itself pos- sessed of the power of resistance sufficient to enable it to again enter the human body. Such observations are of especial interest in connection with the theory of Petten- kofer (vide supra), as seeming to show that his idea of the influence of locality is exact, in so far as this influ- ence is extended in changing the anaerobic to an aerobic organism. According to Koch, solutions of 1 to 400 of carbolic acid, 1 to 2,500 of sulphate of copper, and 1 to 10,000 of corrosive sublimate are sufficient for the arrest of the de- 71 Asiatic Cholera. Asiatic Cholera. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) velopment of the spirillum of Asiatic cholera. Esmarch and Eisenberg show that creolin will destroy it more quickly than carbolic acid in solutions of the strength of from 1 to 1,000, or 1 to 2,000. Liborius, Kitasato, and Pfuhl have shown the active effect of freshly prepared milk of lime, while Hueppe and Loewenthal seem to have established the important prophylactic and thera- peutic value of salol in the management of cholera. Treatment.-Inoculation Against Cholera.-Haffkine, whose first article upon the protective inoculation of ani- mals against cholera appeared in the spring (La Semaine Med., No. 36, 1892), tried the virus upon himself (Munch. Med. Woch., August 9, 1892). He injected subcutane- ously in his left side a somewhat larger dose than that used in animals, of the so-called first kind of anti-cholera vaccine, prepared after Pfeiffer's method (Ueber das Choleragift, Zeit. f. Hyg., xi., 393). An illness fol- lowed, lasting for twenty-four hours, made up of a rise of 1° C. in temperature, headache, dryness of the mouth, and clouding of the urine, with no disturbance of the digestive tract. There was pain, slight swelling, and glandular enlargement at the seat of the inoculation, the pain lasting five days, and the swelling diminishing gradually until the ninth day. Six days after the first inoculation the other side was inoculated with the strengthened cholera virus (Vaccine No. 2), and there was a second rise of temperature and local pain, but no swelling. The pain disappeared in three days, and the condition became normal in twenty-eight hours, with no digestive disturbances. Similar inoculations were tried in three other persons with like results. In one of these cases a slight diarrhoea which had lasted for several days stopped the day after the injection (first). The inocula- tion of both kinds of anti-cholera vaccine, the protec- tive power of which in animals has been experimentally proved, is harmless to men, and Haffkine has the hope that six days after inoculation with this vaccine the hu- man organism will have obtained complete immunity against every cholera infection (Boston Med. and Burg. Journ., cxxvii., 227). Salol in Cholera (Deut. Med. Woch., August 11, 1892). -The treatment first proposed by Loewenthal (first dose of two grammes of salol, followed by hourly or half- hourly doses of one-half to one gramme [Ibid., 1889, Nos. 25 and 26]) has been reported by several authors as pro- ducing remarkable results when employed in man. Dr. Gonzales, of Salvador, has used it in fifty-three cases of cholera in one of the Philippine islands with only three deaths (and these were already in the last stages of the disease when they came under observation) ; the mor- tality under other methods of treatment being about forty- five per cent. As a contrast to these results may be quoted those next following, and the paper upon this subject in the Prac- titioner (for November, 1892) will be of interest. It is by Dr. Hehir, of India, who was the first to recommend the use of the drug in India several years ago. After a careful experimentation with it in a large number of cases he concludes that it, like many other drugs, must be con- sidered as having failed to justify the expectations raised in regard to it, and that it should be relegated, like its predecessors, to the limbo of oblivion as far as its special usefulness in cholera is concerned. The following treatment of cholera was suggested by Nothnagel and Kahler (Munch. Med. Woch., August 16, 1892, and quoted in the Boston Med. and Surg. Journ., September 8, 1892), at the request of the Austrian Gov- ernment : The use of dilute hydrochloric acid, eight or ten drops to a quarter of a glass of water after meals, the relief of constipation by enemata of boiled water, and the careful treatment of already existing gastric or in- testinal catarrh are advised. Colds must be guarded against and attention given to the general hygiene of the body (baths, exercise, sleep). Every diarrhoea must be treated as if it were a choleraic diarrhoea. The pa- tient must be put to bed, if possible after a warm bath, or a hot sitz-bath, with warm compresses on the abdo- men, the nourishment limited to barley-broth, and tinct- ure of opium, with tea, rum, or cognac given. If nau- sea or vomiting appear, carbonated, not alkaline, water is recommended. All drinking-water must be first boiled. Before the patient is put to bed an energetic cold rubbing down is recommended, but this must be superintended by the physician. Calomel comes into consideration only in the very beginning of the disease. For the treatment of a well-developed cholera attack the tannin enemata recommended by Cantani are best suited, one-half to two litres (quarts) of water boiled, and at a temperature of 39° to 40° C. (102.2° to 104° F.), in which 15 to 20 grammes (3f to 5 drachms) of tannin are dis- solved, are discharged by high irrigation. This proced- ure is best suited to the premonitory stage, but can be of use in the fully developed algid stage. The tannin has a limiting action on the development of the cholera spiril- lum, but is also supposed to counteract and favor the quick elimination of the cholera poison from the blood. In the stage of asphyxia, in order to counteract the thickness of the blood, hypodermatic injections or intra- venous injections may be used to advantage. For the first, two litres (quarts) of distilled water are boiled for half an hour in a vessel, the mouth covered with cotton, 6 grammes (1| drachm) of carbonate of soda and 8 grammes (2 drachms) of sodium chloride dissolved in it, and cooled to 40° C. (104° F.). This fluid is injected by means of a large, hollow needle, through a fold of skin of the abdominal wall into the cellular tissue. The skin is first to be made thoroughly aseptic. Instead of a syringe a burette is connected with the needle with a rubber tube. The whole apparatus should be previously disinfected. In the course of a half-hour, li litre (quart) of the fluid can be injected. The skin of the thigh or interscapular region can also be chosen for the injection, and the resulting swelling can be re- duced by massage. If after the third injection the re- lief is only transitory, intravenous injection is to be tried. For this the same solution can be used, or a solution of 5 grammes (1| drachm) sodium chloride, with 10 grammes (2| drachms) sodium sulphate to 1,000 grammes (one quart) of water, previously boiled and thoroughly filtered as the other. In a quarter of an hour, from 2 to 2| litres (quarts) can be injected into a vein in the arm. The first appearance of the algid stage is the indication for these procedures. For stimulants, champagne, fermented mixtures, heavy wines with the addition of ten to twenty drops of ether, tea with brandy, subcutaneous injections of camphor in olive-oil, in the proportion of 1 to 9, warm baths, energetic and long- continued rubbing with alcohol, or with cloths dipped in ice-water, and warmth to the extremities are useful. In case of muscular cramps injections of morphine are useful. The treatment of the typhoidal condition, often observed, must depend upon the individual case. It is important to watch for and treat renal complications, and especially to bear in mind the necessity of maintain- ing the general nutrition. During the time of cholera, it is well known, ac- cording to Sansom (The Practitioner, November, 1892), that there are many cases of simple diarrhoea, and the question often comes up as to whether these are to be treated by castor-oil or by opiates and astringents. The author quoted recommends most emphatically the use of castor-oil in moderate doses, offering the following prescription as a good one, viz. : B. Ol. ricini, Muci- laginis acaciae, aa | ss. ; Aquae menth. pip., § ss. ; Elixir saccharini, Tf[v. Mix carefully and make an emulsion. In addition to this, and during times of cholera, he rec- ommends also a mixture containing either the sulphite or the sulpho-carbolate of sodium. He thinks he has seen evidence that the sulpho-carbolate acts certainly as an in- testinal antiseptic, but if it be employed at all it must be used in much larger doses than are usually given-in children 15 to 20 grains, and in adults half-drachm doses in peppermint-water or cinnamon-water, and repeated every three or four hours. If there be much pain or griping, small doses of compound tincture of camphor (ten-minim doses for children or half-draclnn doses for adults) may be added. He thinks that opium in most of its forms does harm. In the acute stages he has never 72 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Asiatic Cholera. Asiatic Cholera. seen any real good from the use of astringents, but in the later periods, if much looseness continues, astringents, especially in the form of logwood, were useful. He pre- fers the sodium sulphite to the sodium sulpho-carbolate. These he considers to be the chief principles of medical treatment of cholera until, or unless, the signs of collapse make their appearance. He does not place much reliance upon the statistics in regard to the various methods of treating true cholera, because in the first place cases of simple diarrhoea are likely to be returned as true cholera, and in the second, the variations in the intensity of the disease at various periods of the outbreak must of neces- sity result in many false deductions. It is an established fact that the mortality of epidemics of cholera is much greater in the beginning of the outbreak, being as much as 60 per cent, and more, and that this very high rate re- cedes to 25 per cent, or less after the first outbreak. It appears as if there was a sudden maximum of poten- tial energy in the cholera bacteria that fails as the epi- demic goes on, a condition of things that is ascribed by the more recent writers to the development of an ac- quired immunity among the population, and by others to the change in atmospheric and telluric conditions that become more unfavorable to the development of the organisms. Certain authorities assert that there is no medical treatment that is of avail in the maximum of the epidemic, that a patient in collapse must die, but it is not the part of the practitioner to adopt an attitude of help- lessness in such a case. Upon the approach of collapse it is recommended to place the patient at once either in a hot bath and keep him there, allowing the dejecta to be passed in the tub, or-much more convenient-the hot pack at 100° F. may be usefully employed, reapplications of the hot flannel being made at short intervals. The evacuations are the fnost difficult to deal with and the most important, because in them lies practically all the danger of the spread of the disease. If they be passed into a bed- pan they should be at once covered with a solution of corrosive sublimate 1 to 1,000, or of carbolic acid 1 to 20, or with a saturated solution of sulphate of iron ; and they should be allowed to remain in contact with these solu- tions for at least six hours before they are allowed to pass into the sewers. But the best method of all is to destroy them by fire, and in this respect the suggestions of Sansom (loc. cit.) are of so much value that we shall quote them entire : " In hospitals receiving cholera patients a special furnace should be provided. In private houses, if pos- sible, a scullery or a room having a fireplace should be appropriated for the purpose and the chimney swept clear. The evacuation should be received upon a large piece of oiled paper (e.g., newspaper), on which layers of tow have been spread. To absorb further the liquid matters, sawdust or peat should be added. On removal from the patient more sawdust or peat should be thrown over the surface, and then a sprinkling of a mixture of powdered nitre and sulphur (proportions of 3 to 1). The whole should be then rolled up in the oiled paper and an outer •cover of paper, brushed with carbolized oil, applied. The package is then ready to be taken to the furnace. If no fireplace can be used for the sole purpose, the burn- ing might take place in the open air, care being taken that no nuisance is created. The addition of the nitre and sulphur (to which charcoal or coal-dust may be added if the matters are to be consumed in the open) is not only to promote combustion, but concurrently to disinfect by the sulphurous oxidation products. "After any attention to the patient whereby it is pos- sible that there may be contact with the evacuated matters, the nurse should plunge her hands into a watery solution of corrosive sublimate, 1 to 1,000, or one of thymol of equal strength, or, preferably, into a solution of thymol in methylated spirit, 1 to 1,000. Experience has abundantly shown that the attendants on cholera pa- tients run scarcely any risks of infection if only contam- ination by the excreta be avoided." If there be much pain, inhalations of chloroform may be used, and also, between these, the vapor of nitrite of amyl from the crushed capsules. (SUPPLEMENT.) If the condition of collapse does not soon show signs of amending, the methods of Cantani, termed by him "enteroclysis" and " hypodermoclysis," may be em- ployed. By enteroclysis is meant a copious enema of hot water, medicated by various drugs, by means of which not only may the irritating contents of the intestine be cleared away, and, perhaps, in some degree disinfected, but fluid may be absorbed from the surface of the in- testine to replenish the empty blood-vessels. Long be- fore the epidemic of 1866 Dr. Murray, in India, bad recommended the half-hourly injection of a pint of a weak solution of common salt and carbonate of sodium into the rectum at a temperature of 120° F., and is said to have obtained very striking results. Similar means were employed by Sansom (loc. cit., p. 325), in 1866. Cantani advises the addition of tannin to the hot water. From 80 to 320 grains are dissolved in 3 pints or a quart of water or chamomile-infusion at a temperature of 102° to 105° F., and twenty drops of laudanum and an ounce or an ounce and a half of gum acacia are added. Instead of tannin, thymol in solution of hot water (1 to 1,000) has been recommended by other authorities. In the rec- ommendations of the Royal College of Physicians re- cently (1892), benzoate of sodium, two drachms to a quart of water, has been suggested as an alternative to the tannic acid. In every case the injection should be made with much gentleness. The best position of the patient is that on the back with the hips well raised and the legs well drawn up as for lithotomy. The reservoir douche enema should be used and not the ordinary pump. There is much room for doubt as to whether the addition of any medicament to the hot water is of any special value, the favorable results being due probably to the clearing away of irritant and offensive debris, to the absorption of fluid from the intestinal surface, and to the relaxation of the arterial spasm by the hot and moist application. As shown by Cantani, the hot saline solution may pass through the ileo-caecal valve into the small intestine. If signs of improvement do not soon follow the pro- cedure described above, recourse should be had to the second method, that specially introduced by Cantani and called by him "hypodermoclysis," and consistingin the injection of a hot saline solution into the subcutaneous tissue. About one drachm of common salt is dissolved in a quart of distilled water at a temperature of 100° to 105° F. The apparatus for this should consist of a glass funnel with a long rubber tube attached to a hypo- dermic needle of fairly large calibre. The needle is in- troduced in the gluteal, interscapular, lumbar, or ileo- costal region, the funnel being held at about the level of the patient, and the needle pushed so far in that it may be moved freely in the subcutaneous tissue. The reser- voir is then elevated slowly so that the fluid runs into the tissue by the force of gravity and its distribution is aided by the manipulation of the fingers. When about half of the fluid has been introduced the needle is removed and the remainder is injected in another place. The method seems to be rational and is supported by strong evidence by Cantani, who has made extensive use of it. It is easier of application than the older method of intravenous injec- tion that has been employed for many years, and it seems to be attended with better permanent results. Either or both of these methods must be employed earlier than is usually the case, and before the actual symptoms of death have made their appearance ; to wait too long is to throw away all chances of success. It must be remembered that even if the dangers of the period of collapse have been safely passed, an ever-watchful care must be exer- cised. for even after the vaso-motor spasm has passed off there is in some cases the condition of paresis to be reck- oned with, and the resulting typhoid state, the tendency to congestions of the viscera, and especially to pneumonia, must be most carefully watched for and guarded against. General and Special Hygiene.-Measures of pre- caution in nursing cholera patients (Brit. Med. Journ., September 3, 1892) are thus given by Mr. Ernest Hart, the editor of the journal from which the extract is made. He states that in the epidemic of 1885 the following rules were used and enforced at the London Hospital: The 73 Asiatic Cholera. Asiatic Cholera. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. following disinfectants were employed-the first two or three days Condy's fluid diluted and chloride of lime, subsequently carbolic disinfecting powder and carbolic acid largely diluted (1 to 40), mixed with sawdust in quantities sufficient to wet the sawdust, and sprinkled about the passages, wards, closets, etc. None of the excreta from the patients were allowed to be emptied into the sewers ; instead of this a portion of dilute carbolic acid - about half a pint - was put into each chamber-pail and the contents were buried in the garden. The pails had water-tight lids. Burnett's fluid was sprinkled in the cabs that brought the patients. The straw from the beds was burned in each case of death, or where they had been much soiled by excreta. The linen from the cholera wards was washed separately in the laundry of the hospital with McDougall's disinfecting soap. Hot coffee, beef-tea, etc., were recommended to be taken by the nurses at early dawn, and everyone was advised to avoid going on duty on an empty stomach, or in a depressed condition. An extra allowance of wine and of pay was made to the nurses. Again, although cholera raged so severely in Chili in 1886-87, the doctors and nurses in a number of small hos- pitals were enabled to protect themselves entirely. Each of the hospitals (Russell) contained from fifty to sixty beds, and had a staff of six doctors, six students, and thirty attendants. All wore long aprons, reaching from the chin to the feet, and caps. For washing the hands and face a solution of corrosive sublimate (1 to 1,000) was exclusively used. In the dining-room all dishes before use were strongly heated by the flame of burning alcohol. The bread was sterilized by toasting. It is stated that no one of the staff sickened who adhered strictly to these precautions. The convalescents before their discharge were bathed in the corrosive-sublimate solution and their clothing was washed in a similar disinfecting solution. The floors of the hospital were made of a kind of pine par- quet soaked in tar, and were washed daily with a solution either of copper sulphate or potassic permanganate (1 to 1,000). On emptying a ward it was fumigated, according to rule, by sulphurous acid gas for twenty-four hours. Instructions of the French Committee on Hygiene as against Cholera, prepared in 1889.-The germ of cholera is contained in the dejecta and vomited matters of patients. It is transported especially by water, linen, and clothing. 1. Personal prophylaxis. Follow out a careful hy- giene ; avoid all causes of fatigue, especially cold, when the body is in a perspiration ; excess of all kinds, of wine or of alcoholic liquors, and the excessive use of ice-water ; abstain from green fruit. Special attention should be paid to drinking-water ; it should be boiled if its origin is suspicious. Natural mineral waters, called table waters, are recommended. 2. Isolation of the sick. The person attacked with cholera should be isolated. The patient should be under constant supervision, and those who have charge of him should be the only ones to have access to him, and these at- tendants should be governed by the following rules: Take no drink or fluid in the sick chamber, never eat without having washed the hands with soap and a disinfecting solution, bathe the body frequently with a disinfecting solution, and wash the mouth from time to time, and par- ticularly before eating, with a disinfecting solution. 3. The sick chamber. The chamber should be aired many times a day, and curtains, shades, rugs, and all furniture that is not indispensable, removed ; the bed should be placed in the middle of the room. 4. Disinfection. The principal disinfectants that are recommended are sulphate of copper, freshly prepared chloride of lime, freshly prepared milk of lime,* corrosive sublimate. (SUPPLEMENT.) The two following solutions should be used according; to the circumstances indicated : First, the strong-sul- phate of copper or chloride of lime, 5 per cent, solution (that is to say, 50 grammes of the sulphate of copper or the chloride of lime in a litre of water, milk of lime 20 per cent.). The other, the weak-sulphate of copper or chlo- ride of lime 2 per cent, (that is, 20 grammes of these substances in a litre of water, milk of lime 7 per cent.). Solutions of corrosive sublimate are to be employed, one to a thousand, the strong ; or one to two thousand, the weak, according to the case. The solutions of sublimate should be colored with fuchsine or eosine, which has. been added to a litre of water containing 10 grammes of hydrochloric acid. Wash the body and hands. For washing the hands- use the weak solution. Rinsing the mouth. For rinsing the mouth use a so- lution of hydrochloric acid, 4 to 1,000 (that is, 4 grammes- of hydrochloric acid to a litre of water). Dejections. All the dejections of the patient, the vom- itus and fecal matters, are immediately disinfected with one of the strong solutions ; milk of lime is especially recommended. A tumblerful of one of these solutions- should be previously turned into the vessel destined to receive the dejecta. The dejecta are immediately turned into the cabinets, which are also disinfected twice a day with one of the strong solutions. The cabinets. These are washed twice a day with one of the strong solutions. Body linen. Soiled body linen is immediately col- lected, and placed for two hours in one of the strong so- lutions. It is then sent to the wash, where it is kept for half an hour in boiling water before being cleansed. The unsoiled linen is plunged into one of the weak dis- infecting solutions. The same precautions are taken at the laundry. Neither of these classes of linen should be washed in a watercourse, for such water being likely to be drunk later may start a new epidemic. Clothing. The clothing of the sick and the nurses- should be placed for half an hour in a disinfecting oven, in steam under pressure, or in boiling water for half an hour. If these two procedures cannot be carried out, the clothing should be disinfected by sulphurous acid, after the manner indicated below in the disinfection of the infected lodging. Clothing soiled by dejecta should be placed for an hour in one of the strong solutions. The furniture. Spots or soiled places on the furniture or walls of the room should be immediately washed with one of the strong solutions., The mattresses and bed furniture. These should be placed in a disinfecting oven, or, when this is not accessi- ble, should be disinfected by sulphurous acid. Corpses. The corpses should be placed as soon as- possible in a tight coffin, that is to say, one with good joints, and well closed and containing a layer of five to six centimetres of charcoal, in order to prevent filtration of fluids, and should be immediately buried. Disinfection of infected lodgings. A room occupied by a person affected with cholera should not be inhabited until there is complete disinfection. (a) Disinfection by sulphurous acid. The procedure is- by the combustion of 40 grammes of sulphur to the cubic metre of space to be disinfected, in the following manner : Bands of paper are pasted over the cracks or joints that might let the sulphurous vapors escape. For half an hour water should be boiled in the room in a way to fill it with vapor. Sulphur is broken into very small pieces and placed in pottery vessels, or vessels of cast-iron, with large openings, and holding each about a litre. If of iron, they should be of a single piece, or riveted without solder. To avoid the danger of fire, the vessels containing the sulphur are placed in the centre of basins of iron, holding a layer of five or six centimetres of water. To burn the sulphur, a little alcohol is poured out on it, or it is covered with a little cotton soaked in alcohol, and a match is put to this fluid. The sulphur being lighted, the doors are closed, and paper is pasted over the joints. The room is not opened for twenty-four hours. (b) Disinfection by sublimate. The disinfection of * In order to obtain very active milk of lime, one should take good quality lime, and slack it little by little with a small portion of its weight of water. When the deliquescence is completed the powder should be placed in a carefully closed receptacle, and a dry situation. As a kilo- gramme of lime which has absorbed 500 grammes of water for slacking requires a volume of 2.200 c.c., it is enough to add double this volume of water, that is to say. 4.400 c.c., in order to have a milk of lime of about 20 per cent. To disinfect cholera dejecta, it is enough to use a quantity of this milk of lime equal to 2 per cent, of the materials to be disinfected. 74 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Asiatic Cholera* Asiatic Cholera* plastered walls, or those covered with colored papers, should be methodically carried out over the entire sur- face of the chamber walls with the aid of a spray of a strong solution of sublimate. The atomizing of this solution should begin at the upper portion of the wall, should follow a horizontal line, and descend successively in such a way that the whole surface will be covered with a fluid layer in very line drops. All the woodwork should be washed with boiling water, dried, and gone over with the same solution. The municipal adminis- tration will inspect the disinfection, and if the inhabi- tants do not carry it out, will proceed officially. It is part of its duty to see that the inhabitants of a lodging proceed to a serious purification. The room is not rein- habited until at least twenty-four hours have elapsed. 5. Private Hygiene. Drinking-water. Great care should be exercised in regard to the purity of the drinking-water. In case of an epidemic drink boiled water. Water com- ing from sources which possibly are contaminated should be prohibited, and bakers should never, in making bread, utilize such water. The washing of contaminated linen in watercourses is forbidden, as well as throwing into them any material from the dejecta. Prodromic diarrhoea. It is proper to give special at- tention to the general condition of the public health, in order to prevent maladies, accidental and only slightly grave in themselves, and notably those of the digestive organs, from producing individual indispositions favor- able to the development of cholera. It is therefore nec- essary to establish preventive medical visits. Physicians appointed for this purpose should exercise a surveillance over the health of the inhabitants of their quarter, and should insist upon the necessity for immediate treatment of intestinal derangement in all cases. Obligatory information. Every case of cholera, or sus- pected case of cholera, must be at once declared at the Health Office. Isolation. The sick person should be immediately iso- lated. Inspection. In every house where a case of cholera occurs an immediate inspection is made by a physician delegated by the municipal administration, who should take at once all the necessary measures for isolation and disinfection. Transportation to the hospital in a special ambulance. When a case of cholera appears in a room containing many inhabitants, the sick person is transported to the hospital in a special ambulance. The chances of cure in such case are greater, and the transmission is not to be feared. Carriages. The carriages in which persons sick of cholera have beep transported must be disinfected. They should be washed with one of the strong solutions. 6. Public Hygiene. All causes of unhealthfulness that prepare the region for an invasion of epidemics should be removed when cholera approaches ; also, the general rules of hygiene applicable at all times should be more rigorously observed in time of cholera, especially what is concerned with the purity of drinking-water ; with crowds of individuals, such as fetes, fairs, and pilgrim- ages ; with the watching over and feeding of armies ; with the proper condition of the soil; with the minute control of closets, and search for possible causes of in- fection ; with the regular removal of filth. The proper condition of houses, and the particular sur- veillance over localities, flats, concert-rooms, and all such places meant for the working or industrial population ; the condition and regular disinfection of public and pri- vate closets ; the inspection and disinfection of outhouses ; the cleansing of sewers ; special inspection of the quarters and houses where cholera prevailed in previous epi- demics - all these things are the special duties of the municipal authorities. • The following extracts from the " Report of the Medi- cal Advisory Committee of the Chamber of Commerce of New York, on Certain Points Relating to Quarantine De- tention of Passengers and the Disinfection of Passengers' Baggage, Merchandise, and Infected Ships " (Abstract of Sanitary Reports, September 23, 1892, No. 39, Washing- ton) are of great interest, and express the general consen- sus of medical opinion at the present time. ". . . It should be distinctly understood that in formulating the opinions contained in this report we have limited the scope of our consultation entirely to Asiatic cholera, and to the circumstances of the present epidemic. We re- port here only the circumstances under which the germs of this disease are liable to enter our country in transat- lantic ships, and certain of the measures which seem to us necessary to prevent their access. The control of other infectious diseases offers distinct problems in each case. The opinions which we have formed rest prima- rily upon this consideration : That under ordinary con- ditions there is little liability to the introduction of the- germs of Asiatic cholera, either through the mails or through ships' cargoes. It is, on the other hand, through the ship's inhabitants and their personal effects that the- contagium of this disease is most liable to enter. " Merchandise and Mails.-In view of the facts just stated, we concur in the general conclusion adopted by the International Sanitary Conference at Home, in 1885, namely, that disinfection of merchandise and of the- mails is unnecessary. This general statement, however, must, we believe, be qualified when the merchandise is known to have been prepared for shipment in infected places, has been shipped from infected ports, or has been brought on ships in which cholera has occurred during the voyage. Under either of these conditions it is our opinion that measures of disinfection should be practised. The nature of these measures will depend upon the nature of the cargo, its form of packing, and the cir- cumstances under which it has been placed before or during the voyage. We do not think that general mer- chandise prepared and packed in uninfected places, in boxes or barrels, or close packages, and which has been shipped at infected ports or brought on infected ships, would need other than such an exterior disinfection as could be practised on the ship or during the unloading without injury to the goods. . . . We believe that merchandise in bales presents greater possibility of con- tamination from its handling by infected dock-hands, stevedores, or ships' crews at infected ports, or on an in- fected vessel, than when packed in boxes, and should therefore be subjected to more rigorous inspection and: disinfection processes than if it were entirely closed. We are assured by our advisers that hides can be disin- fected without injury. A thorough, prolonged, intelli- gent exposure of rags to live steam or prolonged boiling are the only means known to us by which they may be- rendered absolutely safe. . . . We are furthermore of the opinion that, at present, edibles which have either been prepared or packed in infected places should be re- fused entry altogether. . . . " The Inhabitants of Infected Shipsand their Effects.- We have in this report limited the term ' infected ship * to such ships as may have had a case or cases of Asiatic cholera on board during the voyage. . . . We believe that on arrival in port of an infected ship, its passengers should be at once removed to a safe and comfortable place of detention, where they should be isolated in groups as small as practicable and held under observa- tion. We believe that under ordinary conditions the period of quarantine detention of healthy persons when removed, as they should be at once on their arrival in port, from all known or possible sources of inf ection, and properly placed, should be five days, in case no cholera occurs among them. We believe that the baggage of cabin passengers arriving on infected ships should be the subject of most careful investigation as to its point of shipment, its degree of protection from the possibility of contamination while on board, and as to its condition on arrival, and that such manner of disinfection should be practised as may seem necessary to the health officer in view of the facts in each particular case, special attention being paid to the baggage of those who may have taken ship at infected ports, or who have been recently staying in infected towns. We believe that the personal clothing and baggage of the steerage passengers, among whom cholera has occurred during the voyage, should be sub- 75 Asiatic Cholera. Bacteriological. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. jected during their detention to reliable processes of dis- infection ; and furthermore, that the persons of such steerage passengers should be freed as fully as may be from all possibly infected clothing and effects before they are taken from the infected ships to the place of •detention. We hold the opinion that the detention of passengers of any class on infected ships for a moment longer than is absolutely necessary is unjustifiable. . . . We believe that the disinfection of a ship, in which, ■during a voyage, a case of Asiatic cholera has occurred, cannot be, with certainty, accomplished while its passen- gers are on board. ... We have, in this report, not attempted to lay down rules which will govern all cases, nor have we felt called upon to specify particular modes of disinfection. . . . Stephen Smith, M.D., Chairman ; A. Jacobi, M.D. ; E. G. Janeway, M.D. ; T. Mitchell Prudden, M.D. ; R. H. Derby. M.D. ; Herman Biggs, M.I).; Allan McLane Hamilton, M.D., Secretary." Harold C. Ernst. ASPARAGIN. An alkaloid obtained from asparagus ■officinalis. It also may be obtained from marshmallow', lily-of-the-valley , and many other plants. It occurs in hard, brilliant, colorless crystals, with a faintly saline, ■cooling taste, soluble in water, one part in twelve. The use of asparagus is being revived, and this alkaloid is recommended as the best means of obtaining its thera- peutic properties. It is administered in doses of one to one and a half grain three times a day. Asparagus has long been known to possess therapeutic properties, but it has not received much attention. The roots and shoots are official in the French Codex, and at many European watering-placesit occupies an important "position in the articles of diet in lithiasis and in the treat- ment of gouty patients. It increases the flow of urine and imparts a peculiar strong odor. It may cause vesical irritation, and should be used with caution when the renal tissue is diseased. In cardiac dropsy it is recom- mended, as its action is said to resemble that of conval- laria. Beaumont Small. ASTRINGENTS, VEGETABLE, IN CHRONIC IN- TESTINAL CATARRH. There are three drugs which, in the course of years, I have used, singly or combined, in a considerable number of chronic cases of intestinal catarrh. Each of these drugs contains more or less tannic acid and bitter extracts, but their therapeutic value I have found to be greater than that of tannic acid by itself, and they are apt to disturb the gastric functions either very little or not at all, and can conse- quently be given for an indefinite period, and without harm. 1. Extractum Monesiae is derived from the bark of Chrysophyilum glyciphlaeum, a Brazilian tree. It was known and used to a great extent some forty or fifty years ago, but has now been almost forgotten. Heyden- reich (1839) found it to contain fifty-two per cent, of tan- nin and thirty-six per cent, of a sweetish substance, prob- ably glycyrrhicin. It is sold in the shape of irregularly shaped, dark brown pieces, is soluble in water, and has a sweetish, astringent, and later rather acrid taste. In doses of five to ten grains it improves the stomachic func- tions, in larger doses of fifteen grains to half a drachm it is apt to disturb digestion and produce constipation. 2. The well-known Ratanhia root comes from a bush growing in Bolivia and Peru. Wittstein (1854) found in it eighteen per cent, of tannin, some resin, wax, and sugary substances. This extract has a more acrid taste than the former, has similar effects, but is not as well borne by the stomach. 3. The Colombo root derives its name from the Afri- can " Kolumb," and belongs to a large species of creeper encountered in the forests of Mozambique and Southeast Africa. Boedeker and Buchner found in it the alkaloids columbin, berberin, and a peculiar acid, some resin and wax, and much starchy substance. For many years the extract and tincture have been in medicinal use as stomachic stimulants, but the natives, and also the Hin- (SUPPLEMENT.) doos, use the drug, in the form of infusion or decoction, for diarrhoeal and dysenteric diseases. For a number of years I prescribed extr. monesiae in the form of a jelly-paste, thus : Extr. monesiae, § ss.; extr. columb., 3 ij.; conserv. rosarum, mellis, aa § iij. M. Ft. electuarium. S. : Keep in cool place, and take a tea- spoonful three or four times a day. In many cases of otherwise uncomplicated chronic diarrhoea in adults there is often considerable pain and purging, and small doses of morphine or opium may have to be given be- tween the doses of the extract for a week or so, when they may be left off and the remedy continued by itself. Later on, and up to the present time, I have discontinued the use of the paste in all cases that could take pills instead, and I prescribe them as follows : Extr. monesiae, extr. columb., aa § ss.; extr. gentian, et glycerin., q. s. F. pil. 120 ; two, three, or four of such pills to be taken three times a day, and to be continued until a cure is es- tablished. If it be preferred, the pills may be put up in gelatine capsules. I have the accurate record of at least twelve cases of chronic catarrh of the ileum in adults, and some among them of two or three years' duration, with intervening periods of relative well-being and exac- erbation, all of which were cured by the above remedies. At least twenty cases more I have lost sight of, but I may safely say that a cure was effected in every case that was not complicated by organic disease. In chil- dren's practice these remedies have not been used by me, but in the form and combination mentioned they have been prescribed for adults alone. Monesia and columbo together act well and produce no dyspeptic symptoms, giving off their tannic acid as they proceed to absorption in the gastro-intestinal tract. And this is a point of im- portance, that, in the treatment of many chronic func- tional or simple catarrhal disorders, a positive result may be hoped for, if we are able to continue long enough the use of properly acting remedies, without disturbing by them the functions of the stomach or other organs. I have now used these remedies in so many cases, and have observed their effects for so long a time, that I feel war- ranted in recommending their more general use. Leonard Weber. AUDINAC. A watering-place in the department of Ariege, in the South of France. Location.-Audinac is situated five miles to the south of Saint-Giron, amid attractive surroundings. Mild climate. Season, June to September. There are two springs yielding an abundance of water having a harsh, styptic taste. Temperature of water, 70° F. Analysis.-One quart of the water contains : Grains. Sulphate of lime 10.976 Sulphate df magnesia 9.739 Chloride of magnesium 5.391 Carbonate of lime 8.074 Carbonate of iron 1.096 Bitumen 0.972 Total 36.248 Indications.-These purgative and diuretic waters are employed in abdominal plethora, dyspepsia, genito- urinary disorders. They are supposed also to be rather tonic, on account of the iron which they contain. Accommodation.-Audinac has not kept pace with modern improvements. It is a sleepy French village and no longer a fashionable resort. Still the thermal estab- lishments are not altogether devoid of comforts for invalids, and of the power of the springs there is no doubt. Edmund C. Wendt. AUSSEE. A climatic and bathing resort in Steier- mark, Austria. (See also Vol. I. of this Handbook.) Location.-Aussee is charmingly situated among the hills of the so-called " Salzkammergut." It is over 2,000 feet above sea-level. The saline waters are used for brine baths and hydrotherapy in all its forms. The place is also popular with mere tourists on account of its fine 76 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Asiatic Cholera.. Bacteriological. surroundings and the facilities it offers for excursions. Season, July to September. Access.-Aussee is now a station on the Austrian State Railroad. Indications.-The baths are employed with benefit in scrofula and neurasthenia. Some phthisical cases and " run-down" people generally do remarkably well there. Diseases of women are largely treated in various pri- vate medical establishments, which constitute a special feature at Aussee. Accommodation.-Many large and small hotels, sana- toria, institutions, etc. The Kaiser Franz Joseph's Bad is a new thermal establishment with excellent arrange- ments. There are concerts and other amusements, read- ing-rooms, bowling-alleys, etc. Among the hotels may be mentioned Hackl, Erzherzog Johann, Erzherzog Franz Karl, Sonne, Wilder Mann. Owing to its growing popularity the prices are now relatively high. Edmund C. Wendt. AXENFELS. A climatic station on the southern arm of the Lake of Lucerne-that part which is known as the Bay of Uri, about two and one-half miles from the town of Brunnen. The latter place may be reached either by steamboat or by railroad from Lucerne, at the eastern end of the lake, or from Fluelen, at the southern end of the Bay of Uri. From Brunnen Axenfels is reached by the old St. Gothard diligence road, which zigzags up the side of the mountain to an elevation of about two thou- sand five hundred feet, affording an almost constantly re- curring series of magnificent lake and mountain views, such as can be seen in only a few parts of Switzerland. The hotel (Hotel et Pension Axenfels) is a well-built stone structure, with large and airy rooms, all modern conveniences, and pleasant surroundings. While every- thing is on a more modest scale than at the Hotel Axen- stein, which is scarcely a mile distant, in all that relates to the comfort and well-being of its guests, the Axenfels house is in no respect behind its more pretentious neigh- bor. Edmund C. Wendt. AXENSTEIN. A climatic station on the Lake of Lu- cerne, Switzerland. Location.-One of the most beautiful spots on the Lake of Lucerne, Axenstein affords a pleasant sojourn to those in need of rest, or " after-cures." It is 2,400 feet above the level of the sea, in a fairly well-sheltered po- sition, and of easy access. The air is " Alpine" in quality. The Axenstein establishment is situated in a picturesque country, near the small village of Morschach. An ex- tensive park surrounds it, planted with pine and fir trees. The excursions are varied arid interesting. Two villas situated in the park contain billiard-rooms, baths, etc. There is a telegraph and post-office. English church in one of the villas. Access.-By the St. Gothard Railroad from Lucerne to Brunnen, thence by omnibus or carriage in one hour to Axenstein. Indications.-Milk- and whey-cures are about the only special therapeutic measures made use of here, the place being a popular resort for invalids without serious affections. Accommodation -The Grand Hotel Axenstein is a first class Swiss hotel, with all modern comforts, and prices are not yet inconveniently high. Edmund C. Wendt. BACILLUS PYOGENES SOLI.1 I isolated this organ- ism from an abscess which formed at the seat of inocula- tion in a rat inoculated with an impure smear-culture from an animal dead of tetanus. The smear-culture was one of those made in the manner described for isolating the bacillus of tetanus by Kitasato's method (see this organism under heading Tetanus). It was found im- possible to isolate the pyogenic bacillus by plating the pus in the usual way. This was only possible by inoc- ulating from abscesses in animals to culture-media, and from culture-media back to animals a number of times. In this way the contaminating organisms gradually dis- appeared, and the pus organisms became relatively more (SUPPLEMENT'.) and more numerous, until finally all contaminations were got rid of. The organism resembles in many respects the bacillus of diphtheria. It presents the same irregularities of shape ; the swollen, club-shaped extremities ; the trans- verse, unstained, clear spaces in stained preparations ; the deeply stained, often perfectly round spots, as are seen in the diphtheria organism. They stain readily with all the ordinary staining solutions, but best with Loeffler's methylene blue. With this stain the older cultures often present a very remarkable appearance, in that there ap- pear bright-red spots in the otherwise blue rods. In some preparations the organisms look as if they had been double stained. The red color is especially evident in the swollen knobs. They have no independent motion, and do not stain by Gram's method. The growth of the organism is slow on all media. When first obtained it could only be got to grow on gelatine and in beef-tea, but cultures which I have kept reinoculating now for about a year grow equally well on agar. The growth in all cases is scanty. Colonies in gelatine are very small, and appear as round yellowish spots under the lower power of the micro- scope. Stab-cultures resemble stabs of streptococcus pyo- genes ; along the bottom of the line of inoculation are discrete, round colonies. Growth on potatoes and on blood-serum is weak, and presents nothing characteristic. In the hydro- gen tubes as described for teta- nus (see under this heading) the growth is comparatively good. The bacillus is. there- fore, a facultative anaerobe , indeed, it seems to grow best where there is paucity of oxygen deep in the stab. The effects upon animals differ with the mode of in- oculation. In rats, gray mice, rabbits, and usually white mice, subcutaneous inoculation of small or large amounts produces an abscess strictly confined to the seat of inocu- lation. These abscesses form in twenty-four hours, and run a shorter or longer course, depending upon the amount of the culture inoculated. Animals do not suffer from any general symptoms, as a rule, from subcutaneous inoculation, but white mice do sometimes have abscesses in the joints and internal organs. Injections of from one-half to three-fourths cubic centimetre of a liquid culture into the ear-vein of a rabbit produce, in some cases, multiple abscesses in the joints, kidneys, and in other internal organs ; sometimes also ulceration of the intestines. The organism is found aggregated in small and large irregular clumps, seldom separate bacilli, in and among the pus-corpuscles. Meade Bolton. 1 Meade Bolton : The Am. Jour, of the Med. Sciences, June, 1892. BACTERIOLOGICAL TECHNOLOGY. This article is supplementary to that under the title " Micro-organisms " in the Reference Handbook. The same order in the arrangement of subjects has been followed, to facilitate reference, and the principles of bacteriology there ex- pounded are in this article amplified by such selections from the literature of the subject as seem applicable to a work of this nature Staining Reagents.-Ziehl's Carbolic Fuchsin Solu- tion : Fuchsin (crystals), 1 gm.; carbolic acid, five per cent, aqueous solution, 100 c.c., and add slowly absolute alcohol, 10 c.c. A permanent solution. When used cold this solution stains in a few minutes most forms of bac- teria. Wurtz recommends that it should be filtered after forty-eight hours. He advises against its use for stain- ing pathological tissues, as it stains all granular and coagulated matter, and in this way disfigures the prep- aration. Kuehne's Carbolic Methyl-blue Solution : Methyl-blue (crystals), 1.5 gm.; absolute alcohol, 10 c.c.; add grad- ually while mixing, carbolic acid, five per cent, aqueous Fig. 33. - Bacillus Pyogenes Soli (schematic), showing some of the various shapes often met with. X 1,000. 77 Bacteriological Technology. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (Supplement.) solution, 100 c.c. Action is similar to that of Ziehl's solution. Lithion-Carmine Solution : Carmine, 2.5 gm. to 5 gm.; saturated aqueous solution of lithion carbonate, 100 c.c. Stain for two to three minutes ; wash for one-half to one minute in the following: Concentrated hydric nitrate, 1 part; seventy per cent, alcohol, 100 parts. Wash in ■distilled water, then transfer to alcohol, then to oil, and mount in balsam. Over-staining is impossible, as the color can be removed to any extent by the action of the hydric nitrate alcohol. Fraenkel's Solution for Decolorizing and Double Stain- ing : Hydric nitrate, 20 c.c.; distilled water, 30 c.c.; ninety per cent, alcohol, 50 c.c.; saturated alcoholic solution of methyl-blue, 66 c.c. Czenzynski's Solution : Concentrated aqueous solution ■of methyl-blue,40 c.c.; one-half per cent, eosine solution (in seventy per cent, alcohol), 20 c.c.; distilled water, 40 c.c. For contrast staining of blood cover-glass prepa- rations. Fixative for Dry Substances in Making Cover-glass Preparations, v. Sehlen recommends a mixture of equal parts of egg albumen and a cold saturated solution of boric acid. The dry substances are mixed with a drop of this mixture on the cover-glass, and coagulation is effected by passing three times through the flame. It filters clear, and remains unchanged for a considerable time. Staining of Sections and Cover-Glass Prepara- tions.-Gram's Method, Modifications : Guenther rec- ommends the use of a three per cent, hydric chloride solution in alcohol instead of absolute alcohol, after the section has been removed from the iodine solution ; also, the use of xylol, instead of the oil of cloves, for clearing sections. Weigert suggests washing the section in water or a 0.6 per cent, sodium chloride solution after its removal from the aniline gentian-violet stain, then placing it on a slide and drying it with filter-paper. Gram's iodine solution is applied on the slide and removed with paper. The section is then moistened with aniline oil, which removes the water, and, it is claimed, produces a more marked contrast. The aniline oil is removed and replaced by xylol, and the specimen mounted in balsam. Fibrine, hyaline matter, etc., are stained a deep blue ; micro-organisms are stained a dark violet. Botkin recommends washing the cover-glass prepara- tion or section in aniline water after its removal from the aniline gentian violet solution and before using the iodine solution. This, he claims, removes the excess of dye from the tissues, and fixes that already taken up by the bacteria. Staining the Bacillus Tuberculosis.-Ziehl: Cover-glass preparations of sputum or tissue-smears are rapidly and effectively stained by this method. Float the prepared cover-glass on Ziehl's carbolic fuchsin solution in a porce- lain capsule, and heat gradually to the boiling-point. After boiling has continued for a few minutes, decolorize without previous washing, in a five per cent, aqueous so- lution of hydric sulphate, then wash in two to three alco- hols (sixty to eighty per cent.) and rinse thoroughly in water. Contrast stain in a watery solution of methyl-blue. This method is applicable to the staining of the B. tuberculosis in tissues, but the section of tissue should not be heated above 45° C., and must remain in the stain- ing fluid for about one hour. Ahrens : Dissolve a small crystal of fuchsin in two to three drops of ninety-seven per cent, alcohol (or a few drops of a saturated alcoholic solution may be used) and add to this 2 to 3 c.c. of chloroform. This mixture is at first cloudy, but clears by precipitation, and when clear the prepared cover-glass is floated upon it for four to six minutes. Allow the chloroform adhering to the cover to evaporate, and decolorize with a three per cent, hydric chloride (ninety-seven per cent.) alcohol. Tiien wash in water and contrast stain with a watery solution of methyl- blue. In employing this method for tissues the acid alcohol is washed out with absolute alcohol. Gabbet recommends staining the prepared cover-glass for two minutes, without heating, in Ziehl's solution and washing in water. Then decolorize and contrast stain by immersing the preparation for one minute in the follow- ing solution : Methyl-blue (crystals), 2 gm. ; twenty-five per cent, hydric sulphate, 100. c.c. Wash thoroughly in water and mount in balsam. This is a simple method and gives good results. Czaplewski : Stain the preparation in warm Ziehl's solution and after draining off the surplus coloring mat- ter, immerse six to ten times in a solution composed of a saturated alcoholic solution of yellow fluorescin with an excess of methyl-blue and allow the stain to drain off slowly after each immersion. Then contrast stain in a concentrated solution of methyl-blue and wash quickly in water. The especial advantage claimed for this method of staining is said to be that mineral acids may decolorize many of the tubercle bacilli, while fluorescin does not. Fraenkel recommends that sections be stained for twrenty-four hours in an aniline-water-fuchsin solution, then immersed for one to two minutes in his decolorizing and double staining solution (see above), washed in water, etc. In cases where the tubercle bacilli are few in number a method of precipitating them in the sputum may be employed. Biedert: 15 c.c. of sputum are mixed with about 6 c.c. of water, and with from 4 to 8 drops (never more) of a strong solution of sodium hydrate, according to the viscidity. This is then boiled, being continually stirred, and 12 to 18 c.c. more of water are gradually added until a thin fluid is produced. This is to be stood in a precipitating glass for two days, when the upper layers of fluid are poured off and the sediment stained and examined. It is well to preserve some of the original sputum, to cause the adherence of the sediment to the cover-glass, as the power of coagulation by heat is frequently lost by the above treatment of the sputum. Stroschein : 5 to 10 c.c. of sputum are mixed with one to three times their bulk of the following solution: Borax, 1; boracic acid, 3 ; water to saturation, and thoroughly shaken for one minute. This is allowed to stand for twenty-four to forty-eight hours and the sediment is then examined. Centrifugal Machine.-This apparatus is employed to precipitate bacteria from urine, milk, and other fluids, with satisfactory results. Its use was first suggested by Litten. (See Fig. 34.) The apparatus consists of a perpendicular shaft, which supports a metal disk. At the periphery of the disk four test-tube holders are swung, and the disk is made to re- volve very rapidly, through the agency of a series of multiplying cogs by turning a crank. One is enabled to accomplish in minutes what formerly required hours, as Professor Litten states. Staining the Diplococcus Pneumonia.-This lancet- shaped bacillus stains easily by the usual methods, but the capsule by which it is encompassed, when found in the tissues, remains unstained. Staining in Ehrlich's aniline water gentian-violet solu- tion and decolorizing by Gram's method leaves the coccus stained. The capsule is unstained, but remains visible. v. Kahlden recommends, for demonstrating the capsule, staining for some hours in a one per cent, solution of fuchsin in five per cent, carbolic acid water. This gives a deep red color to the coccus, and the capsule has a pale reddish tint. Staining the Gonococcus.-In cover-glass preparations made from the suspected secretions, the coccus is easily stained by watery solutions of the aniline dyes, prefer- ably methyl-blue. It is decolorized by Gram's method. The cocci lie for the most part within the pus-cell, and are mostly grouped about the nucleus. Kratter states that this grouping is more characteristic than the " semmel " shape. Schutz recommends staining cover-glass preparations for five to ten minutes in a saturated solution of methyl- 78 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Bacteriological Technology. blue in five per cent, carbolic acid water. Then immers- ing for three seconds in dilute hydric acetate, 5 parts ; water, 20 parts, and washing thoroughly in water. Con- trast stain in a very dilute solution of saffranin. v. Kahlden recommends staining two to three minutes in an alcoholic solution of eosin and warming. The ex- cess of eosin is absorbed with paper, and the film is then stained for half a minute in an alcoholic solution of methyl-blue. Wash in water, dry, and mount in balsam. Touton recommends that sections be stained in Ziehl's solution and washed in alcohol. Staining Actinomyces.-In examining pus for actino- myces the characteristic whitish granules must be sought for. This is best done on a glass plate, upon a dark background. The granules are carefully crushed be- tween two cover-glasses, which are then drawn apart; the film is dried in the air, and the cover passed three times through a flame. A number of methods of staining have been suggested, but the results are uncertain. For diagnostic purposes •double staining in haematoxylin and eosin suffices, giving a red color to the fungus and a blue color to the tissue. Gram's method (staining in Ehrlich's aniline-water alcohol^ the following solution for double staining : Methyl-blue, concentrated aqueous .solution, 60 parts ; eosin, one-half per cent, solution in seventy-five per cent, alcohol, 20 parts; distilled water, 20 parts ; twenty per cent, potassic hydrate solution, 12 parts. Stain for five to six minutes and wash in water. Czenzynski's solution may be employed with excellent results for producing a contrast stain. The covers should be floated upon it for some hours at a tempera- ture of 37° C. Staining of Spores.-Guenther : The cover-glass, be- ing prepared in the usual way, is floated on a solution of aniline-water fuchsin or gentian-violet, in a watch-glass, and very carefully heated to the boiling-point, when it is held entirely away from the flame for one minute. This operation is repeated five times. The cover is then plunged into a three per cent, hydric acetate alcohol, and thoroughly rinsed in water. The bacilli may be contrast stained by an aqueous so- lution of the aniline dyes. Moeller : The cover-glass preparation, dried in the air, is fixed by passing three times through a flame, or by immersing for two minutes in absolute alcohol. It is then placed in chloroform for two minutes, to remove fat-globules and crystals, and washed in water. Chromic acid has been found so to act upon the spore- covering as to allow the stain to penetrate it. The time required to effect this change in the covering varies from one-half to two minutes. If the action is insufficient the spore does not stain ; if too great, the spore is too readily decolorized. To test this action for the species under ex- amination a five per cent, solution of chromic acid is al- lowed to act upon the specimen for one minute. This effect being noted, a second specimen is treated for a longer or shorter time, as may be required. After removal from the chromic acid the preparation should be thoroughly rinsed and stained by a few drops of Ziehl's solution being heated upon it for one minute, and brought but once to the boiling-point. Without being washed it is at once immersed in a five per cent, hydric sulphate solution and then thoroughly washed in water. A contrast stain is produced by immersing the cover for thirty seconds in an aqueous solution of methyl-blue or malachite-green. Staining of Flagella.-Neuhaus recommends boiling the prepared cover-glass for five minutes upon black logwood ink, " Kaisertinte," and then placing it in a di- lute neutral sodium dichromate solution for fifteen minutes. This process must be repeated several times. Trenkmann stains the flagella of motile bacteria, liv- ing in water, as follows: A small drop of fluid which contains the bacteria is spread upon a cover-glass with a large drop of distilled water, and dried in the air. It is then placed, without heating, in an aqueous solution of one per cent, of tannin and one-half per cent, of hydric chloride, for two to twelve hours, and after rinsing thor- oughly it is stained from one to four hours in a dilute solution of dahlia or fuchsin (concentrated alcoholic solution, 2 parts; water, 20 parts), gentian-violet, or me- thyl-violet (1 to 8Q parts of water), methyl-blue, etc. Dahlia, fuchsin, and methyl-violet give especially good results. As this method answers only for staining the flagella of bacteria as found in nature, and not in cultures, he recommends for the latter the following procedure : Use as culture-medium an infusion of potato, or, if this is not suited for propagating the species of bacte- rium desired, broth may be employed. In the former case the growth must be diluted five to ten times, in the latter forty to fifty times, before the cover-glass prepara- tions are made. Where it is necessary to make prepara- tions directly from plate cultures, dilute at least one hun- dred times. Dry in the air, and, without heating, the covers are placed in the following solution : Tannin, two per cent.; hydric chloride, one-half to one-fourth per cent.; dis- tilled water, q.s., for six to twelve hours or more. After thoroughly rinsing they are placed in Gram's solution, or Fig. 34.-Litten Centrifugal Machine. gentian-violet solution and decolorizing in a solution of iodine-potassium iodide) gives good results when the sec- tion is left in the staining solution for twenty-four hours, but isopen to the objection that the fungus is liable to fall out when the celloidin is dissolved by the absolute alcohol. Weigert's stain for bacteria, when preceded by the lithion-carmine stain, produces good results, giving an especially sharp outline to the edge. Weigert also recommends staining for one hour in Wedl's orseille solution, washing in alcohol, contrast staining in a one per cent, aqueous solution of gentian- violet, again washing in alcohol and mounting in balsam. This gives a blue color to the inner parts of the " ray fungus," and to the outer parts a ruby red. Israel stains the pear- or flask-shaped ends of the fun- gus a burgundy-red, by staining for several hours in a solution of orcein in water, rendered acid by hydric acetate. Staining the Plasmodium Malaria.-Blood obtained by puncture is quickly spread upon a cover-glass in the thinnest possible film. When dried in the air and passed rapidly three times through a flame the organisms may be stained with an aqueous solution of methyl-blue. The red blood-cells remain unstained. Plehn recommends, after fixing the film in absolute 79 Bacteriological Technology. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. in a solution of tincture of iodine, 1 drop ; water, 10 c.c., for about an hour, then thoroughly washed and stained for about one-half hour in a very dilute aniline-water gentian-violet solution, as follows: Saturated alcoholic solution of gentian-violet, 1 drop ; water, 20 c.c.; aniline water, 80 c.c. Loeffler at first recommended the use of a corrosive solution before applying the stain, but modified the method by mixing the corrosive material and stain in the same solution, and adding an acid or an alkali as he found necessary. Add a minute amount of the culture to a small drop of water on a cover-glass and mix carefully so as not to break off the flagella. A small portion of this mixture is transferred to a second, and from the second to a third cover, and dried in the air. The covers are then passed three times through the flame, being held between the thumb and finger to prevent overheating and destruction of the delicate tissue, and are stained by filtering a few drops of the following solution upon the cover-glass : Tannic acid solution (acid, 20; water, 80), 10 c.c.; sat- urated ferrous sulphate solution, 5 c.c. ; methyl-violet, or preferably fuchsin, 1 c.c. This to be carefully warmed until vapor begins to rise. It should never come to a boil. This solution answers well for staining the flagella of many forms of bacteria, but for certain others it requires to be modified by the addition of an alkali or an acid. The alkali used is an exact one per cent, solution of sodium hydrate, and the acid a solution of hydric sul- phate, of such strength that 1 c.c. will exactly neutral- ize 1 c.c. of the one per cent, solution of sodium hydrate. The amount of acid or alkali required to produce the best results in staining the flagella is to be determined by experiment. For the following species it has been shown that to each 16 c.c. of the tannic-acid-iron solution the following additions are necessary : Spir. cholerae Asiati- cte, 1 drop of acid ; Spir. rubrum, 9 drops of acid ; B. typhosus, 1 c.c. of alkali ; B. subtilis, 28 to 30 drops of alkali ; B. of Rauschbrand, 29 drops of alkali ; B. oedematis maligni, 36 to 37 drops of alkali. The flagel- la of the B. typhosus are found to be best developed in five to eight hour blood-serum cultures. Staining Bacteria in Milk or Substances Containing Fat.-Ahrens : Dilute milk with an equal part of water (cream and substances containing a large quantity of fat require greater dilution), and spread in a thin layer on a cover-glass. The film is dried in the air and the cover passed three times through a flame. Mix 12 to 15 drops of a saturated alcoholic solution of methyl-blue with 3 to 4 c.c. of chloroform, and on this float the cover^glass prepared as directed above, for four to six minutes. On removing from the staining fluid, after allowing the chloroform adhering to the cover to evaporate, wash thoroughly in water and mount in bal- sam. This makes an exceedingly clear preparation. Examination of Blood for Bacteria.-For this examina- tion blood must be spread in the thinnest possible layer on the cover-glass and fixed by one of the following methods: 1, By passing three times through a flame; 2, in absolute alcohol ; or, 3, and besf, by subjecting it for five minutes in an oven to a temperature of 125° C. Staining such a film for some hours in Czenzynski's solution and washing in water produces excellent results in contrast staining. Guenther has suggested washing the film in a one to five per cent, solution of hydric acetate for ten seconds, to remove the normal coloring matter from the red blood- cells, thus making the bacteria more apparent. The hydric acetate is removed first by blowing it off the prep- aration by means of a tube, and then allowing the fumes of strong ammonia to act upon it for a few seconds. Staining is accomplished by an aqueous solution of the aniline dyes. Sections of Pure Cultures.-A pure culture, either in agar or in gelatine, after removal from the tube may be hardened for four to eight days, exposed to the light in a one per cent, solution of potassium bichromate, then washed in water and treated with seventy per cent, and (SUPPLEMENT.) ninety-six per cent, alcohols. Gelatine cultures thus- hardened are mounted on cork, kept for twenty-four hours in absolute alcohol, and then cut and stained. Agar cultures, after being hardened are to be saturated with bergamot oil, then placed in a soft bergamot oil paraffine, and then in pure paraffine, at 37° C., for twenty- four hours, when sections may be made. Sections should be stained on the slide, cleared only with bergamot oil, and mounted in balsam. Loeffler's alkaline blue and Gram's and Weigert's methods of staining give good re- sults. Colonies from thin gelatine plates may be hard- ened in the same way, and are then to be treated as sec- tions. To prevent them from folding they should be placed between two slides before immersing in alcohol, and a weight should be placed upon the cover after mounting in balsam. Culture Methods.-Sterilization.-By moist heat. An apparatus known as the Arnold Steam Cooker was first applied as a steam sterilizer by Prudden. It is now manufactured as a steam sterilizer and is largely used in preparing foods for infants, sterilizing surgical instruments and dressings, and is of value for sterilizing clothing and bedding used by persons suffering from contagious diseases, and the clothing of their attendants. It also presents advantages for laboratory use. It con- Fig. 35.-Arnold Steam Sterilizer, Sectional View. sists of (A) a flat, shallow boiler, holding but a small' amount of water, and therefore requiring but a mini- mum amount of heat to produce steam ; (B) a reservoir, placed upon the boiler, which it constantly feeds and in- sures the constant formation of steam ; (D) a covered steam-chest or receiving-vessel, placed above the reser- voir and connected with the boiler by a cylindrical tube of large diameter (C); and (E) a hood, covering the re- ceiver and enclosing an air-space which is constantly sup- plied with escape steam. The hood and the steam-jacket which it encloses prevent variations in temperature in the receiving-vessel, so long as the heat applied to the boiler remains unchanged. By dry heat. A double sheet-iron or tin oven placed on a range or on a gas-stove is employed as an efficient sterilizer. By desiccation. Koch has shown that the vitality of the spirillum choleric Asiatics is rapidly destroyed by drying, and the same effect is produced upon the vege- tative forms of all bacteria, the time required varying- with the species. Spores have a much greater resisting power, and some forms are known to retain their vitality for several years. Spores of the B. anthracis, dried on silk threads, after five years have shown active and typi- cal growth and proved to be pathogenic to white mice. By sunlight. Numerous writers have shown that bac- teria are destroyed by the action of direct sunlight upon 80 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Bacteriological Technology. them, as well as by the action of diffused light. Vegeta- tive forms are destroyed much more rapidly than are spores. That spores are eventually destroyed seems proven from the experiments of Arloing, Momont, and Gaillard. The B. tuberculosis, as stated by Koch, is killed in a short time by exposure to the direct rays of the sun, and the same effect is produced by diffused light, when the exposure is continued for several days. By electricity. Experiments in this line have been made by several writers, those made by Spilker and Gottstein seem to be the most convincing. They used an induction current from a dynamo machine, which was passed through a wire wound around a test-tube con- taining a culture, the tube being suspended in water. No growth occurred after resowing the culture, and repe- titions of the experiment gave similar results. The strength of the current seems to have a direct effect upon its germicidal power, but in no experiment were the bacteria destroyed in less than one hour. Pasteurization.-Freeman has experimented in this line and offers an apparatus (now a commercial article) for pasteurizing milk and infant foods. This apparatus consists of a covered tin pail of given size, which is filled to a certain marked level with water which is actually boiling. Into this is placed a second tin vessel filled with water of ordinary temperature and holding the bottles which contain the fluid to be pasteurized. The outer pail is then covered, and the apparatus left standing for one hour, when the bottles are removed and put in a re- frigerator to prevent development of any spores which are present. The apparatus described has been found to raise the Schultz recommends the following titration method as a more simple and more exact process for neutralizing media : Measure out 1 c.c. of the medium to be neutralized, put it in a beaker-glass, standing on white paper, and add one drop of a solution of phenolphtalein (1 to 300 in vinegar) and mix thoroughly. This forms a colorless solution. To this a 0.4 per cent, aqueous solution of sodium hydrate is cautiously added from a graduated pipette until the fluid assumes a pale rose tint. This pro- cess is performed three times, the amount of alkali used in each experiment carefully noted, and the arithmetical mean of the three results taken as the amount of alkali necessary to neutralize 1 c.c. of the medium. The figure thus obtained is multiplied by the number of cubic centi- metres of medium to be neutralized and divided by ten. The quotient represents the amount of a four per cent, solution of sodium hydrate required to render the whole medium neutral in reaction. Filtration of broth, gelatine, and agar has been much simplified by employing in the funnel several crossed layers of absorbent cotton, loosely packed, instead of filter-paper. The use of the hot funnel is not required, and the properly neutralized medium can be cleared by passing it several times through the cotton. There is but little likelihood of any of these media becoming too cool to flow during the process, as filtration is very rapid. v. Freudenreich recommends that agar be filtered through paper in the autoclave. He claims that it is rapidly accomplished, it is thoroughly sterilized, and the medium is crystal clear. He also states that if agar be boiled for two hours at 115° C. and allowed to stand in the unopened autoclare for three hours, it will remain fluid, all the impurities will settle, and a clear medium may be obtained by care- fully pouring off the upper layers. Neisser and Jacobi suggest filter- ing agar under pressure through 5 ctm. of absorbent cotton, closely packed in a large titrating funnel. They state that filtration by this method requires but a few minutes. Schultz has suggested the follow- ing rapid method of preparing nu- trient agar: To 1,500 c.c. of water, placed in an open enamelled iron vessel, add 18 gm. of agar and boil vigorously over a free flame for thirty minutes. During the boiling 2 gm. of Liebig's meat extract are added, and the thick, white scum which forms is to be removed. The fluid is now cooled to 60° C., and 10 gm. of dry peptone (Witte's) and 5 gm. of sodium chloride are added, together with the entire contents of one or twro eggs, which are mixed with sufficient water to re- place that which has evaporated. The reaction, which usually is too alkaline, must be corrected and the mixture is again brought to the boil- ing point and boiling continued for ten or fifteen min- utes. Filtration is effected through a filter-paper, selected on account of its allowing a rapid filtration, without the use of the hot-water funnel, and may be repeated through the same paper. The process should be completed in an hour, and one litre of medium should be obtained. The agar thus prepared may be used at once for Es- march tube-plates, even after the addition of four per cent, of glycerine. If it is desired to prepare the medium with meat in- fusion, instead of with Liebig's meat extract, the pro- cedure is modified as follows : One pound of finely chopped lean meat is digested in 1,500 c.c. of water at 50° C. for thirty minutes, strained through a cloth, boiled for five minutes, and then filtered. To the filtrate, in an agate saucepan, 18 gm. of agar are added, and the process is continued as described above. Potato.-Esmarch suggests cutting potato in moderately thin slices, placing them in covered glass dishes, measur- Fig. 36.-Freeman Pasteurizer. temperature of the fluids contained in the bottles to be- tween 73° C. and 76° C., and to hold them at that tem- perature for a sufficient time to destroy the B. tuberculo- sis, spir. cholerte Asiaticte, B. typhosus, etc. Milk treated in this manner shows no visible alteration, and if kept in an ice-box remains unchanged for several days. Culture - media.- Meat Extract Media. - Liebig's Beef Extract is largely used in preparing nutrient broth, gelatine, and agar. It is substituted in the proportion of one half of one per cent, for the infusion of meat, and makes a most efficient growing medium for most forms of bacteria. Melting Agar.-To facilitate the melting of agar, it may be soaked over night in water, but the water ab- sorbed must be measured and taken into account. Soaking agar in a very dilute solution of hydric ace- tate for some hours facilitates its melting, but this treat- ment causes it to lose some of its stiffness, which it does not regain. Neutralization.-For the purposes of neutralization a solution of potassium or sodium hydrate possesses an ad- vantage over the CO2 salts in not giving off carbon diox- ide, wffiich, when held mechanically in the viscid fluid, may mask its proper reaction and cause the medium to be made too alkaline. A medium, when markedly alkaline, cannot be cleared except by coagulating in it the white of egg. To facili- tate this coagulation, which sometimes requires prolonged boiling in an alkaline solution, a single drop of concen- trated hydric chloride may be dropped in while the fluid is boiling. This acid does not appreciably alter the re- action. 81 Bacteriological Technology. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. ing not more than 5 ctm. in diameter, and sterilizing in steam for three consecutive days. This answers well for the purposes of culture. Roux first suggested placing potato in test-tubes for culture purposes. He cut a core out of the potato with a cork-borer, placed it in a test-tube, the lower end of which had been constricted to form a recep- tacle for water, and steril- ized in steam. Bolton used larger tubes. The method of preparation is as follows : A potato squared off at each end, cut out by an apple- corer, and the core thus obtained divided obliquely into two equal parts. Each half is put into a test-tube measuring about 3 ctm. in diameter and 12 ctm. in length, and steril- ized for three consecutive days. A small amount of water collects in the bottom of the tube and prevents rapid drying of the medium, while the oblique surface of the potato renders sowing upon it easy, and enables the culture to be readily observed through the tube. When potato has been prepared in this way, before placing it in the tubes it should be left in cold running water for about twenty minutes, to prevent the potato from turning dark. Plant states that potatoes, or other vegetables or fruits, cut to the proper size, may be sterilized in large storage-tubes, and fished out with a heavy platinum needle as required for use. Macaroni is recommended by de Lagerheim as a culture-medium. To prepare it, cut the macaroni in short pieces, and place in cotton- plugged tubes, which are nearly (SUPPLEMENT ) per cent, solution of potassium hydrate, showed an al- teration in the consistence of the albumen. In four days it becomes "fluid-gelatinous-transparent," and in from five to fourteen days it becomes " solid-gelatinous " and faintly yellow, but remains transparent. The broth-like medium'is made by using a ten percent, aqueous solution of the "fluid-gelatinous-transparent" albumen and sterilizing. The syrupy medium is a fifty per cent, aqueous solution of the " fluid-gelatinous-transparent" albumen. The solid medium may be either a, the " fluid-gelati- nous-transparent" albumen placed in tubes and sterilized, or 3, the "solid-gelatinous" albumen, cut in thin slices and used unsterilized, in small double dishes. Blood-serum.-Abbott has suggested an improvement in the method of securing blood-serum. He recommends collecting the blood in museum jars of one gallon capac- ity, closed by a cover which can be tightly secured upon a rubber joint. After the blood has stood in these jars for about fif- teen minutes, or until clotting has begun, a clean glass rod is passed around the edges of the surface of the clot, to break up adhesions which have formed, and which would prevent the sinking of the clot to the bottom. The covers are then tightly replaced, and with as little agitation as possible the jars are removed to an ice-chest. At the end of about forty-eight hours the firm clot will have sunk to the bottom of the jar, and above it a quan- tity of dark straw-colored serum is found. This serum should be drawn off with a sterilized pipette and placed in tall cylinders and the blood-corpuscles allowed to set- tle by standing the cylinders in an ice-chest for twenty- four hours. The clear serum is then pipetted off into tubes or flasks and sterilized by the fractional method. Kirchner has demonstrated that chloroform added to various fluids will prevent putrefaction in them. He recommends the use of this agent in the strength of one per cent, for preserving storage - flasks of unsterilized blood-serum and milk. Chloroform does not kill spores, but prevents their development, so that when fluids thus preserved are prepared for use the chloroform must be driven off by heat, and sterilization effected by the usual methods. Blood-serum thus preserved in sealed flasks for more than a year has been successfully used as a culture-me- dium. Loeffler mixes three parts of blood-serum with one part of beef-broth containing one per cent, of glucose. This is sterilized and used as a fluid or solid medium. It is recommended for growing the B. diphtherias, and Park has shown that within eighteen hours a sufficient growth may be obtained on the coagulated medium to establish a differential diagnosis between diphtheria and the other pseudo-membranous inflammations. Hueppe combines blood-serum with agar to make plates. He mixes the sterile fluid serum with equal parts of two per cent, nutrient agar to which 0.5 to 1 per cent, of glucose has been added. The following pro- cedure should be closely adhered to, viz., warm the serum to 37° C., melt the agar and cool to 42° to 45° C. and mix them together. The material to be studied is then added and the plate poured before the agar has be- come solid. Bumm suggests collecting human blood from the pla- cental end of the cut umbilical cord, in a sterilized vessel. The serum is collected and sterilized in the usual way. From single cases he has secured from 15 to 20 c.c. of clear serum. Human blood-serum seems to be necessary for procur- ing cultures of the gonococcus. Plate Cultures.-Petri suggested for plating gela- tine and agar, the use of double glass dishes measur- ing 10 ctm. in diameter and 1.5 ctm. in height. The upper dishis a cover and the lower dish, with its per- pendicular edges, serves to hold the medium, and ob- viates the necessity of using a levelling apparatus and cold stage. The " Petri dish " has in most cases re- placed the flat plate formerly used. It seems to be adapted to every need. Fig. 37.-Dish for Potato Culture. (Esmarch.) Fig. 38.-Tubes for Potato Cultures. A, for anaerobic growth; B, for aerobic growth. (Roux.) filled with water. These should be boiled in the steam sterilizer for fifteen minutes, then the excess of water is poured off, and the regular process of sterilization per- formed. Many species of bacteria do not grow upon macaroni, but it is useful as an additional medium. Urine.-Heller has suggested that urine reduced to the specific gravity of 1.010 be used as a culture-medium, to which peptone, salt, gelatine, agar, glycerine, sugar, etc., may be added. He also suggests the use of diabetic and albuminous urine. Ascitic and hydrocele fluids are used for the purposes of culture, with or without adjuvants. They are to be drawn off from the body by sterilized instruments and received in sterilized vessels. They are prepared as cult- ure-media by the processes employed for blood serum. Egg.-The white of egg is an efficient culture-medium. Schenck recommends using the outer, clear, and most fluid of the albuminous layers, mixed with equal parts of water. This is sterilized discontinuously at 65° to 70° C. Tarschanoff and Kolessnikoff make a broth-like, a syrupy, and a solid medium from eggs by treating them ■with potassium hydrate. They found that eggs in their shells, placed in a ten 82 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Bacteriological Technology, (SUPPLEMENT.) " Streak-plates " are made on gelatine and agar, after the medium has been poured in the plates and become solidified, by drawing an infected needle across them in four or five parallel courses. When the number of bac- teria on the needle is small, and the streaks are made with a light touch, separate colonies will be found growing along the line which the needle has travelled. This method of plating is especially adapted for use at autopsies. Anaerobiosis.-Various methods a tube containing a column of nutrient medium, 8 or 10 ctm. in height, is an efficient method of obtaining anae- robic growth. The first growth appears at the lower part of the tube and extends slowly upward, sometimes reaching nearly to the surface of the medium. Fig. 42.-Tube for Anaerobic Culture. (Salomonsen.) Substituting an atmosphere of some pure gas, prefer- ably hydrogen, is a method long in vogue. Fraenkel devised the following procedure. Using a large test-tube, fitted with a double-bored rubber cork, through which two glass tubes pass, one extending well into the medium, the other ending at the lower surface of the cork. The upper parts of both tubes, just above the cork, are bent to right angles and the ends drawn out to capillary tubes. Through the longer tube a stream of hydrogen or other gas is passed to replace the air which is driven out through the shorter tube, and when this is accomplished both tubes are sealed, the shorter one first. After the tubes have been sealed an Esmarch tube- plate may be made. Salomonsen has devised a culture-tube in which the air may be replaced by hydrogen. It consists of a piece of glass tubing drawn out at both ends, leaving between them a bulb 8 or 10 ctm. in length. One of the ends is bent up upon the bulb, and at the middle of the bulb bent outward at a right angle. After the medium has been introduced, a stream of hy- drogen is passed through it from below while it is still fluid. Inoculation is effected by means of a platinum needle, and after the air has been replaced by hydrogen, both ends are sealed. Blucher has devised an ingenious and very effective apparatus for anaerobic plating. It consists of a glass dish about 8 ctm. in di- ameter (B), which is raised on a wire frame (Q and placed within a dish about 12 ctm. in diameter and 5 ctm. high (A). Over the smaller dish a tulip-shaped fun- nel (D), intermediate in size between the two dishes, is inverted, the neck of which has been 1 o o s e ly plugged with cotton (E). This is sterilized by dry heat. Fig. 39.-Dish for Plating. (Petri.) have been suggested for obtaining bacterial cultures in an atmosphere from which oxygen has been excluded. Some forms, the obligatory anaerobes, require that this condition be absolutely fulfilled, while others, the facul- tative anaerobes, develop both in the presence and in the absence of oxygen. The methods de- scribed answer the requirements more or less perfectly, but the process is a dif- ficult one to carry out, and attention is required to the minute details. The oxygen may be removed from the culture by mechanical means, and this is the most usual procedure, or it may be absorbed and enter into chemi- cal combinations which are not broken up by the processes re- quired to obtain a growth of the bacteria in ques- tion. By means of the air- pump the air may be rarefied, and a large pro- portion of the oxygen re- moved, or, as was first suggested by Koch, the medium on a plate is cov- ered with a sheet of mica, beneath which the air is excluded and the growth which occurs remains un- der observation. For growth in tubes, Hesse has suggested pour- ing upon the medium a quantity of sterilized oil. Librious, after boiling the medium for 20 min- utes to drive off the oxy- g e n contained in it, cooled the medium quick- ly, inoculated the germ to be cultivated, and then sealed the tube. Roux, after boiling, cooling, and inoculating the medium, poured upon it a thick layer of agar, which, when cool, he in- oculated with an aerobic germ, to use up any oxy- gen which might still be present or which might gain admission. Deep puncture, with a Inno- nlatinnm needle in Fig. 43.-Apparatus for Anaerobic Plating. (Blucher.) The plates are poured into the inner or smaller dish, the opening which exists between the rim of the funnel and the outer dish is closed by a sufficient quantity of glycerine and water, poured into the outer dish, and the neck of the funnel is connected with the gas generator by a piece of rubber tubing, 8 or 10 ctm. in length, which is provided with a spring clip. The gas, passing from Fig. 40. -Anae- robic Growth Obtained b y Deep Punct- ure. Fig. 41. -Anae- r o b i c Tube- plate. (Fraen- kel.) 83 Bacteriological Technology. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. above, drives the air out beneath the rim of the funnel, and when this process is completed, the rubber tubing is closed by the spring clip, the connection with the gas generator is broken and a drop of glycerine placed in the lumen of the rubber tubing, above the spring clip, to effectually seal it. It is necessary to weight the funnel to overcome the buoyancy of the gas contained in it (?'). (SUPPLEMENT.) growth by filling the tube with gelatine. In doing this, it is necessary that the tube-plate already made be held in ice-water, to prevent its melting, w hile the gelatine, which should be as cool as it is possible to have it, is- poured in. Nikiforoff has devised a bulb for cultures, from which the air can be absolutely excluded. It is made from a moderately thin glass tubing of 1.5 to 2 ctm. diameter, sealed at one end and drawn out to a long capillary tube at the other, leaving a bulb about 5 ctm. in length. The capillary tube is broken at its middle, and at a distance of about. 10 ctm. from the bulb it is curved through an angle of 160°. The end of the capillary is then immersed in sterilized water, the air driven out by heating the bulb with a tiame, and on cooling some of the water is sucked up into the bulb. To fill such an apparatus with the nutrient medium the water in the bulb must be carefully boiled out, leaving practically a vacuum, and just before the emptying of the bulb the end of the capillary tube is immersed in the desired medium, which must be in a fluid condition. On cool- ing, the medium flows rapidly into the bulb, and sealing is effected by holding the curve of the capillary tube in a flame. To allow of inoculation the tube must be cut off where the bulb begins to narrow into the capillary. The process of sowing in a solid medium is the same as in ordinary tubes, after which the tube is sealed by a blow-pipe. To sow in broth, or in a melted gelatine or agar, he recommends the in g e n i o u s method of touching an end of a short, sterilized capil- lary tube, held in sterilized forceps, to the fluid to be ex- amined. The cap i11 a r y at once fi 11 s, and it is dropped into the bulb, where it falls to the bottom, its contents be- ing w s^s h ed out by the fl u i d medium Fig. 44.-Apparatus for Anaerobic Plating. (Hesse.) Hesse and Botkin have both devised apparatus for growing anaerobic plates. In both cases a closed chamber is formed by inverting a vessel of considerable cubical contents, within one of slightly greater diameter. A small rack to hold several plates, one above the other, is placed within the chamber, and raised from the floor of the lower vessel. Hesse seals the opening between the upper and lower vessels with mercury, and conducts the stream of hydro- gen through a glass tube curved at its extremity to a short U-shape. The air is conducted off by a similar glass tube placed on the other side, and when the sub- stitution of the hydrogen is completed both tubes are removed without allowing any of the gas to escape. Botkin uses a liquid paraffine joint, *3 ctm. in height, and conducts both the gas and the air through rubber tubes. These tubes, when bent to the desired shape, re- tain this shape through the agency of a fine copper wire Fig. 46.-Anaerobic Culture-tube, a, Method of filling- tube with culture medium ; b, tube inoculated and sealed. (Nikiforoff.) during its descent. The bulb is then sealed. Hueppe recommends the use of eggs in their shells for anaerobic cultures. After external cleansing and disinfection with sublimate, washing in sterilized water,, and drying with sterilized absorbent cotton,, the egg is thoroughly shaken and a fine opening made at its point, by a sterilized instrument, through the shell and membranes. Through this opening the inoculation is made, and it is afterward covered with sterilized paper and sealed with collodion. Buchner absorbs the oxygen present in the tubes. Fig. 45.-Apparatus for Anaerobic Plating. (Botkin.) previously passed through them. They are easily re- moved, after steadying the upper vessel, by simply draw- ing them out. Esmarch's roll tube-plates may be used for anaerobic 84 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Bacterio logical Technology. and uses for the purpose an alkaline solution of pyro- gallol. A tube inoculated in the ordinary way is placed in a large test-tube containing 1 gm. of commercial pyrogallic acid. To this 10 c.c. of a 10 per cent, potassium hy- drate solution is added from a pipette, and the large tube is quickly closed with a rubber cork and sealed. In twenty-four hours, at 37° C., the contained oxygen is absorbed. At lower temperatures a longer time is re- quired. It is of advantage to raise the inoculated test-tube above the fluid in the large tube on a glass or metal support (p). Kitasato and Weil have proposed adding to the nutrient medium substances which possess the power of absorbing oxygen. They believed that the good effect of sugar, as used by Liborius, upon the growth of anaerobic bacteria was due to this absorb- ing power, and they experimented to find a substance which wrould act more power- fully in this regard. They found that sodium formate, used in the strength of 0.3 to 0.5 per cent, in nutrient agar, left a clear, transparent me- dium, and its presence was so beneficial upon the growth of three anaerobic species experimented with, that they recommend its use for this purpose. They also found very characteristic ap- pearances from growing anaerobes in agar, to which 0.1 per cent, of sodium indigo- sulphate had been added. Before inoculation and for about twelve hours after it, this medium is bluish-black and opaque. As growth progresses the color changes to one of a greenish tint, the change appearing first in the lower part of the tube and spreading upward. Grad- ually the growth in the puncture-line be- comes apparent, and the agar, which event- ually regains transparency, also regains its original yellow or brownish color. In all cases the color of the superficial layers of the medium, to the depth of about two ctm., remains an indigo-blue. Anaerobic Hanging-drop.-The growth of anaerobic bacteria in hanging-drop has been carried on by apparatus which al- lowed a stream of hydrogen to replace the air, or from which the air was exhausted by the air-pump. Two much more simple and very efficient methods have been sug- gested. Nikiforoff prepares the hanging-drop as usual, upon the hollow slide, and, by slipping the cover to one side, places a small drop of a saturated solution of pyrogallol on the edge of the hollow ; then by slipping the cover to the other side he inserts a small drop of ten per cent, potassium hydrate solution, and returns the cover-glass its upper surface. Over this opening a glass ring is sealed. The hanging-drop is made in the ordinary way, and sealed with vas- eline upon the glass ring. Through an- other opening in the retort the pyrogallol is first introduced, then the ten per cent, solution of potassium hydrate, and the opening is plugged and sealed. Inoculation of Animals. - Petri h a s recommended an inoculation syr- inge which seems to present advantages over those formerly used. He employs a graduated glass pipette of 1, 2, or 5 c.c. capacity, with a short tube of exit, which is ground to lit accurately into the shoulder of a hypodermic needle. The needle and pipette are easily sterilized and are the only parts w hi< h come in contact with the fluid to be injected. The injecting power is supplied by a double bulb, such as is used in an ordinary hand-spray apparatus, and attached to the pipette by rub- ber tubing, in the course of which a stop-cock has been inserted. The pipette being filled with the desired fluid, the stop-cock turned to cut off the air, and the bulb being inflated, the needle is introduced into the tissues and by carefully turning the stop-cock enough force can be applied to drive the desired quantity of the inoculating fluid into the body of the animal. Then by turning the stop-cock to cut off the force and withdrawing the needle the oper- ation is completed. Examination of Air. - It has been demonstrated that the air may be freed from the dust and bac- teria which it contains by filtration through various substances and this fact has led observers to employ fil- tration for studies of air analysis. After a measured quantity of air has been aspirated through the filter, the bacteria are freed from the filter- ing substance and grown upon plates. Cotton, glass-wool, and asbestos-wool serve as efficient filters, but the diffi- culty of spreading these materials in the fluid medium and their opacity have led to a discontinuance of their use. Petri, after a series of experiments, suggested the use of a column of sand as an air-filter and has de- vised the following method for its use. Grains of sand, measuring between 0.25 and 0.5 mm., are collected by means of a series of sieves, and thor- oughly burned over a flame for the Fig. 49. - Syringe for Animal Inoculation. (Petri.) Fig. 47. -Ap- paratus for An aer o bic Culture. (Buchner.) Fig. 48.-Slide for Anaerobic Hanging-drop. (Braatz.) to its proper place. By careful manipulation the two drops may be run together, and the oxygen is then ab- sorbed. The alkaline pyrogallol forms a dark ring around the hanging-drop. Braatz also uses the alkaline pyrogallol solution to absorb the oxygen, but forms a retort for it beneath the slide, which is connected through a hole in the slide with Fig. 50.-Sand Filter for Air Analysis. (Petri.) 85 Bacteriological. Bagnolles. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. purpose of sterilization. This gives them a reddish color. A glass tube, 9 ctm. in length and 1.5 ctm. calibre, is fitted within its lumen with four disks of fine wire gauze to serve as supports, and between each two of these disks a sand-filter, 3 ctm. in length, is closely packed. Each end of the tube is plugged with cotton and the whole is sterilized in hot air. The filter is now ready for use. When the apparatus is to be used for an analysis, the cotton plugs are removed and placed in a sterilized cov- ered vessel, and the filter is attached to an exhaust-pump by means of rubber tubing. From 5 to 10 litres of air a minute are drawn through the sand, until the required amount has passed, when the filter is separated from its attachments, the cotton plugs are replaced and the filter preserved for plating. The method of plating is as follows : After removing the uppermost cotton plug, the upper gauze disk is taken out with sterilized forceps and placed in a steril- ized Petri dish. The sand is then poured into the same dish, the melted gelatine added, and the sand spread evenly by short, quick lateral movements of the dish. The lower sand-filter is then treated in the same man- ner and the plates preserved for observation. With the aid of a good hand-magnifier, the colonies of bacteria may be readily distinguished from the grains of sand. Opaque areas are sometimes formed in these plates, by a grouping of the sand-particles, which may obscure certain parts of the plate. To overcome this objection the use of soluble filters has been proposed. Sedgwick and Tucker have used for this purpose a filter of granu- lated sugar, about 8 ctm. in length and 3 mm. in diam- (SUPPLEMENT.) pies taken from the deeper parts of a stream are collected in sterilized weighted bottles, fitted with ap apparatus to withdraw and replace the stopper, and lowered to the de- sired depth. Water should be plated as soon as possible after it has been obtained. Should it be necessary to transport it before the plates can be made, the bottle containing it should be packed in ice. The quantity of water used for an analysis must depend upon the number of bacteria which it contains. One cubic centimetre is the amount usually employed, but less should be used if more than five hundred colo- nies develop from this amount. For quantitative anal- ysis a measured quantity must always be employed, a drop, being an indefinite quantity, is not to be recom- mended. The colonies should be counted on the third or fourth day. T. M. Cheesman. BAD BRONN. An Alsatian watering-place, known also as Kestenholz (Ger.) and Chatenois (Fr.). Location.-Kestenholz is prettily situated not far from Strasbourg, and within sight of Schlettstadt on the river Rhine. It is an unpretentious, quiet resort, with four saline and moderately alkaline springs, flowing in great abundance, and having a temperature of about 64°F. It is chiefly frequented by ladies. Although the water con- tains traces of sulphuretted hydrogen, it is not unpleasant to the taste. The baths are refreshing, and the thermal establishment is modern in its appliances. There are beautiful natural promenades through chestnut-planta- tions and fine forests. The walks resemble those of Marienbad. Mr. Wolff writes as follows concerning this place (" The Watering Places of the Vosges, 1891 "): " Apart from the use of the waters, for a cheap sojourn in for- eign mountain country it would not be easy to hit upon a fitter place than Chatenois. It is easily reached, be- ing situated on the branch-line from Schlettstadt to Markirch, at the junction of the valleys of the Le- ber (Liepvre) and of Weiler (Vai de Ville), both exceedingly pretty and at the same time in- teresting valleys, leading up to the lofty ridge which rises farther south to the high points of the Schlucht and the Hohneck." Analysis.-In 1,000 parts there are contained : Free carbonic acid traces Sulphuretted hydrogen traces Chloride of sodium 3.200 Chloride of magnesium 0.078 Chloride of potassium 0.010 Sulphate of soda (anhydrous) 0.086 Sulphate of magnesia 0.050 Sulphate of lime 0.020 Silicate of soda ) n Bicarbonate of soda j VAOU Silicate of lime 0.410 Silicate of magnesia 0.270 Silicate of iron and of manganese 0.020 Basic salts of bromine and of iodine strong traces Organic matter, in combination with lithia silicic I _ - acid and ammonia f 0.02U Fluorine, arsenic, lithia strong traces 4.214 Indications.-These saline waters are useful in rheu- matic and gouty affections, hepatic plethora, catarrhal affections of the bowels, anaemia and chlorosis. For con- ditions of neurasthenia the place itself, apart from the springs, has undeniable advantages. Tuberculosis and cutaneous affections are also said to be much benefited by a course of these waters, but this statement must be taken cum grano salis. Accommodation.-A new hotel is in course of con- struction, the older ones are mediocre, though clean. The usual sprays, douches, pine-needle baths, inhala- tions, etc., are provided. But everything is on a small scale. It is a cheap place-Mr. Wolff stating that one dollar a day will about cover all necessary expenditures. Fig. 51.-Aerobioscope. (Sedgwick and Tucker.) eter, contained in a glass tune, to avoid the risk ot con- tamination in pouring the plates they attached to the tube containing the filter, a cylindrical glass bulb, ruled in squares, into which the sugar used for filtering is to be transferred and in which the plate is rolled. Both ends of the apparatus are plugged with cotton and sterilization is effected at 150° C. in hot air. These writers propose the use of an exhaust receiver of measured capacity provided with a vacuum gauge, to determine the amount of air used. To this receiver their apparatus is attached and the desired amount of air drawn in through it. When this is accomplished the sugar is transferred from the tube to the bulb by careful tapping, a sufficient amount of gelatine is then poured into the bulb, and after the sugar is dissolved a plate is rolled, under a stream of cold running water. The sand-filter for air analysis may be simplified as follows : In a glass tube, 9 ctm. in length, about 0.3 ctm. in diameter, 6 ctm. of sand, of the size recommended by Petri, are placed, and the column supported on a roll of fine wire gauze pressed into the tube. Both ends of the tube are plugged with cotton and the whole is steril- ized in dry heat. After removing the cotton plugs this filter is inserted in a rubber tube connected with an ex- haust receiver, as suggested by Sedgwick, and the re- quired amount of air is drawn through it. The plating is effected by scattering the sand used for filtering in a Petri dish and adding the melted gelatine. The amount of sand used in such a filter is less than that used in the method proposed by Petri, which over- comes an objection to the use of his method, since a sat- isfactory examination of the plate can be made with a hand-magnifier or with low powers of the microscope. Examination of Water.-Water for bacteriological examination, taken from the surface of a stream or a fau- cet, may be collected in a sterilized tube or flask. Sam- 86 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Bacteriological. Bagnolleg. BADEN-BEI-ZURICH, so called to distinguish it from the other European Badens, is a popular watering place of Switzerland, only a short distance from Zurich. Location.-This Baden was at one time the most fash- ionable spa of Europe. It is prettily situated in one of the most picturesque spots of the Jura Mountains. The river Limmat pierces the mountain chain here on its way down from Zurich. There are beautiful promenades with fine views of the Alps. Richly wooded hills are found in all directions. The elevation of Baden above sea- level is less than twelve hundred feet. There are a num- ber of sulphurous springs, rich in chloride of sodium, and having a temperature of 118° F. They furnish about one million litres a day. It is a quiet place now. The climate is bracing, and the temperature on the whole equable. It is an all-the-year-round resort, but is largely frequented only during the warmer months. Access.-Baden is a station on the railroad from Zurich to Bale, thirty minutes from Zurich. Analysis.-One quart of Baden mineral water con- tains : Grains. Sulphate of soda 2.218 Sulphate of magnesia 2.442 Sulphate of lime 10.860 Chloride of potassium 0.711 Chloride of sodium 13.042 Chloride of magnesium 0.566 Carbonate of lime 2.599 Carbonate of magnesium 0.152 Carbonate of strontium 0.005 Fluoride of calcium 0.016 Chloride of calcium 0.719 All other ingredients 0.013 Total of solids 33.3-13 Indications.-Baden was known to the Romans, and has a good reputation in the treatment of gouty and rheumatic affections, motor disturbances after fractures and dislocations, metallic intoxications, and all digestive and respiratory troubles on a lithtemic basis. It is also a " Terrain-Kurort " for the Oertel method of treating cardiac affections and obesity. The baths have all modern appliances and comforts. There are opportunities for milk-, whey-, and grape- cures. Inhalation-rooms, massage, etc., are not wanting to meet the requirements of certain cases. Accommodation.-There are numerous "bath-hotels," such as the Baren. Blume, Limmathof, Hirsch, Schwan, etc. There is a fairly good Kurhaus, with salons, read- ing-room, etc. An orchestra plays from April to Octo- ber, and there are two theatres. The proximity to the University town of Zurich is an advantage. Not many English and American visitors go there now. Edmund C. Wendt. BADENWEILER. A popular watering-place and cli- matic station in the Black Forest, known to the Romans as Aqua Villarum. Location.-Badenweiler is pleasantly situated in the southern part of the Black Forest, in the Duchy of Baden, near the university town of Freiburg. It has only about six hundred inhabitants, but is annually visited by over five thousand patients and tourists. It is one thousand three hundred feet above the sea-level, and the pure air, impregnated with the balsamic odors of the surrounding pine woods, is a factor which adds greatly to the popularity of the place as a health-resort. Dr. C. W. Allen, of New York, recently spent some time there, and has given his impressions in the St. Louis Courier of Medicine. There are interesting remains of the old Roman baths, still showing the usual atrium, vestibulum, frigidarium, calidarium, tepidarium, etc. The new baths are equipped with all the modern appli- ances of a complete establishment, such as douches, showers, sprays, inhalation-cabinets, etc. The waters of the springs are earthy and slightly alkaline, having a temperature of 80° F. and flowing at the rate of 1,140 litres per minute. It is a peculiarly pleasant wrater to swim and bathe in, according to Dr. Allen's personal ex- periences. The higher peaks of the Black Forest shut in the little village from the northeast and partly from the south, while it is open toward the Vosges Mountains on the west. Sharp and raw wdnds are unknown, the ground dries quickly after rains, and even in the w'oods no un- pleasant dampness is felt. The temperature is even, the night and day variations being slight. The place is very healthy, the mortality (exclusive of the first year of life) being only about fourteen per thousand. There are ex- cellent facilities for many highly picturesque excursions. From near-by mountains fine views of the Alps, Jura, Vosges, and the Valley of the Rhine are obtained. Sea- son, May to October. Access.-From the station Miihlheim, on the railroad, between Bale and Freiburg, by omnibus or carriage. Indications.-Diseases of the chest, nervous and catarrhal affections, neuralgia, rheumatism, female dis- eases, neurasthenia, anaemia, protracted convalescence, are all treated with happy results at Badenweiler. There are plenty of amusements-concerts, theatre, "Italian nights," etc. Cows', goats', and donkeys' milk. A spe- cial feature is made of the grape and whey cure. Ba- denweiler is also a so-called " Terrain-Kurort" (Oertel) for cases of heart disease. Accommodation.-There are good hotels, chief among which are the Hotel Sommer, Rbmerbad, and Sonne. Apartments in villas are also found, and there are quite a number of good boarding-houses. The Kurhaus is ele- gantly fitted up with a ball-room, reading-rooms, etc. It is a commodious structure and under good manage- ment. There is a moderate " cure-tax " for visitors and patients. Edmund C. Wendt. BAD HEILBRUNN. A popular watering-place in Bavaria, Germany. Location.-Heilbrunn (healing spring) is prettily situ- ated near the Bavarian Alps. It is two thousand five hundred feet above sea-level. Attractive scenery and abundant vegetation add to the charm of the little village. Access.-By way of Munich to station Tolz, thence by omnibus. Analysis.-The waters of the spring called Adel- haid's quelle are rather rich in bromides and iodides. In 1,000 parts of water there are contained : Sodium chloride 4.758 Sodium carbonate 0.777 Calcium carbonate 0.073 Magnesium carbonate 0.018 Sodium iodide 0.027 Sodium bromide 0.046 The spring has a temperature of 50° F. The water is limpid and sparkling, and something like 60,000 bottles are exported annually. Indications.-Cutaneous and syphilitic affections, scrofula, also amemia and catarrhal affections of the air- passages, are chiefly treated at this place. But obesity, goitre, and diseases of women are said to do well there also. Accommodation.-Rather primitive and not over clean. There is a Badehaus and a number of boarding- houses. Summer season only. Edmund C. Wendt. BAGNOLLES.-A watering-place in the Department of Orne, France. Location.-Bagnolles (not to be confounded with Bagnols-les-Bains), is situated in a picturesque valley, surrounded by hills, and about five hundred feet above the level of the sea. This region of the country is known, on account of its mountainous character, as the " Switzer- land of Normandy." The springs are mildly mineralized and have a temperature of 65° F. ; 10,000 parts contain only 1.309 of solids. There are also several cold cha- lybeate springs in the place. Access.-From Paris to Domfort, thence to the village of Couterne, which is about six miles from the springs. Analysis.-Besides chloride of sodium, small quan- tities of arsenical salts, sulphides, silica, lithia salts, and 87 ISagnolles. Bertricli. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. baryum are contained in these waters ; also a moderate proportion of carbonic acid gas. Indications.-Chronic sores, phlebitis, skin diseases, scrofula, chlorosis, rheumatism, abdominal plethora, and gastralgia, are the diseases said to be beneficially affected by a course of these waters. Accommodation.-Modern bathing establishment, with the usual appliances. Moderately good lodgings at boarding houses. Edmund C. Wendt. BAGNOLS-LES-BAINS.-A watering-place in the De- partment of Lozere, France. Location.-Bagnols-les-Bains is situated in a narrow' valley at an elevation of about two thousand six hundred feet above the level of the sea. The climate is rather trying on account of sudden atmospheric changes. There are six hot sulphurous springs with temperatures ranging from 50° F. to 105° F. Season, June to Sep- tember. Access.-Paris to Mende, on the Paris, Lyons & Med- iterranean Railroad (fifteen hours). From there by stage to Bagnols in three hours. Analysis.-The springs are only slightly mineralized, the chief ingredients being sulphate of soda, carbonate of soda, and sulphides. Indications.-The diseases usually treated here are cutaneous affections, scrofula, rheumatism, chronic ulcers, etc. But it is at least open to question whether cardiac and pulmonary complaints, for which the springs are also recommended by French physicians, would not be made worse there, on account of the known uncertainties of the climate. Accommodation.-There are two thermal establish- ments, with the usual facilities for douches, sprays, in- halations, etc. Hotels moderately good and cheap. Edmund C. Wendt. BAINS-LES-BAINS, a quiet watering-place in the Vosges Mountain district, with springs highly prized by the Romans. Location.-Bains-les-Bains is pleasantly situated in a wooded district of France, near the town of Epinal. Ele- vation above sea-level, nine hundred feet. Mr. Wolff, in " The Watering-places of the Vosges " (London, 1891), thus speaks of it: " Thanks to the meet- ing of two different geological formations-the granite of the Vosges on one side, and the calcareous stretch of Champagne on the other-the climate of this intervening sandy belt is also said to be all that could be desired, in- imical to disease, and remarkably conducive to longev- ity. Proceeding to more minute local features, the new hotel seems, in respect of construction, tolerably perfect. There are airy, good-sized rooms. And I was surprised to find of all places this retired and old-fashioned oasis taking the lead among Vosges watering-places in the adoption of the electric light, which is laid on all over the house. The glories of Bains are now obscured, but it has had its halcyon days. In the Roman period it was in its own country, fairly rich in thermal waters, the ' Balneum ' par excellence, of the bath-loving conquerors. There is a Bain Romain still in use, modern of course, but built upon the site of the original old Roman bal- neum." Dr. Bailly considers the waters of Bains, Plombieres, and Luxeuil almost identical in effect, their main con- stituents being sulphate of sodium and chloride of so- dium. At Bains-les-Bains there are eleven springs in all, by far the most productive and most important-and also the hottest-of which is the Grosse Source, which is the property of the State. The next in importance is the Source Tiide de la Promenade, which indicates from 82° to 86° F. ; and the third is the Robinet de Fer, a very weakly mineralized water, having but 0.35 gramme of solids in the litre, which is almost, if not quite, as hot as the Grosse Source. Access.-From Paris, via Mulhouse to Epinal, thence by omnibus or carriage. (SUPPLEMENT.) Analysis.-In one thousand parts : Grosse Source de la Source de Source Source. Promenade. la Vache. Savonneuse. Parts. Parts. Parts. Parts. Sulphate of lime... .. 0.110 0.075 0.102 0.160 Chloride of sodium. .. 0.083 0.058 0.136 0.163 Carbonate of Hoda. .. 0.010 - - Carbonate of lime.. .. 0.028 0.018 0.018 0.045 Silica .. 0.069 0.047 0.093 0.221 Oxide of iron .. 0.002 0.002 0.002 0.002 Organic matter.... .. Trace. Trace. Trace. Trace. - - ■ - 0.302 0.700 0.351 0.491 Temperature .. 122° F. 88-95° F. 99° F. 99-107° F. Indications.-There are two thermal establishments, with the usual appliances for douches, sprays, etc. The complaints for which the waters are prescribed are, above all things, articular rheumatism, chronic and acute, and sciatica, and then gout, rheumatic gout, liver complaints, obstruction and tumors, paralysis, cutaneous diseases, fractures, contusions, and the like. Constantin James- referring, it is to be presumed, more particularly to the tepid Source de la Promenade, which is especially cred- ited with this effect-speaks of them as at the same time tonic and soothing to the nervous system. It should be borne in mind, however, that the climate of Bains is de- cidedly variable. Accommodation.-The newly built Grand Hotel is comfortable and commodious. There is a Casino under the same roof, a theatre, concert-room, card-rooms, etc. There are many pleasant shaded walks in the vicinity. Season, May to October. There are also several less pre- tentious and more moderate hotels, as well as a variety of lodging-hoftses. Edmund C. Wendt. BALARUC-LES-BAINS.-A watering-place in the De- partment of Ilerault, France. Location.-Balaruc is near Cette and Montpelier, not far from the Mediterranean Sea, and on a peninsula projecting into the Talu. It is only slightly elevated above the sea-level, but the little valley is healthy and enjoys an agreeable climate. There is a saline spring having a temperature of 116° F., and flowing very abundantly. Access.-From Paris to Cette on the Paris, Lyons & Mediterranean Railroad, thence by carriage to Bala- ruc. Analysis.-In 10,000 parts of the water there are found : Parts. Chloride of sodium 68.02 Chloride of magnesium 10.74 Sulphate of potassium 0.53 Sulphate of magnesium 0.43 Sulphate of lime 7.55 Carbonate of lime 3.05 Bromide of sodium 0.03 Bromide of magnesium 0.32 Silica 0.13 Total solids.... 90.80 Taken in quantity this water acts as a purgative, and it has even been observed that the bowels may remain loose for some time after the termination of a course of treatment. The water is also largely exported. Indications.-Scrofula, struma, paralysis, rheuma- tism, metallic intoxications, anchylosis, and chlorotic conditions are said to be quite successfully treated at Balaruc. Patients suffering from paralytic conditions dependent on hysteria should, however, not be sent there. Although the place is a warm one, the principal thermal establishments are closed during the winter season. There is a large military bathing - place, maintained by the French Government. Accommodation.-The thermal establishments are not as perfectly comfortable and modern in appliances as could be desired. But the usual douches, sprays, etc., are administered. Amusements are only sparingly pro- vided, and "bath-life" is decidedly dull at Balaruc. Fashionable throngs avoid it. Edmund C. Wendt. 88 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Ha» iiolles* Bertrich. BAREGES. A much-frequented w'atering-place in the Hautes-Pyrenees, France. Location.-The village of Bareges is situated in a narrow valley, formed by the Bastan. It is 4,000 feet above the level of the sea, and is thus the most ele- vated of the spas in the Pyrenees. The surrounding mountains are barren, and the spot has no particular nat- ural charms to recommend it. There are, however, some nine or ten mineral springs, which have given the vil- lage its great reputation as a health-resort. The French maintain a military thermal establishment there. Harsh ■climate. Access.-The village is thirty miles from Tarbes, and is reached by a tedious road. Pierrefitte is the nearest station on the Bordeaux Railway. Analysis.-According to Louchamp, one quart of the waters contains: Grains. Sulphate of sodium 0.649 Sulphuret of sodium 0.771 Chloride of sodium 0.618 Silica 1.034 Lime 0.030 Magnesia 0.005 Caustic soda 0.077 Caustic potash traces Ammonia traces Total solids .. 3.184 The temperature of the ten springs varies from 85° F. to 112° F. The water is clear, but has a disagreeable •odor and taste, often producing nausea and vomiting. Indications.-Bareges enjoys an excellent reputation in the treatment of chronic diseases, such as indolent ul- cers, caries, necrosis, skin diseases, syphilis, and old rheumatism. The waters, being stimulating and excit- ing, should not be used in acute troubles, in debilitated people, in cardiac troubles, and anaemia. Season, June to September. Accommodation.-Only passable, owing to the fact that the number of foreigners visiting the springs is not large. Hotel des Princes is the principal hotel. Edmund C. Wendt. BARMOUTH. A popular English sea-side resort, said ito be suitable even in winter! ?) for phthisis. The place is situated on Cardigan Bay, and with Aberystwith (farther ■south), belongs to a group of favorite British resorts on the west coast of Wales. The climate is alleged to be ■equable, dry, and mild, and while it is exposed to west- erly breezes, there is good protection from the harsh north and east winds. The proximity to the splendid mountain scenery of Wales contributes to the popularity •of these places. The bathing is good, there being a fine sandy beach, with a gradual descent. Good drinking- water, and sanitary arrangements. Season in the early summer. The place is reached from London (Euston) in .about eight hours. Edmund C. Wendt. BENZANILIDE (Phenyl-benzamide). This is one of the three anilides that have proved active medicinally. The others are salicylanilide and acetanilide. In benz- anilide the salicylic acid or acetic acid of the others is replaced by benzoic acid. It is obtained by the action of benzoyl chloride or of benzoic acid on aniline, in chem- ically equivalent proportions, at the boiling-point. It occurs in small, white, shining scales, tasteless, odor- less, insoluble in water, soluble in alcohol, 1 in 60. It is chemically and therapeutically allied to acetanilide. Kahn and Hepp, when investigating antifebrine, used it in a number of cases and found it to possess similar properties. Dose, two to ten grains. The advantages claimed for it are that it possesses less toxic properties and after its use the rise of temperature is more slow. Beaumont Small. BERTRICH. A spa in Rhenish Prussia, often spoken of as the " mild Carlsbad on the Moselle." Location. -The " Konigliches Bad Bertrich " is in- sufficiently known outside of Germany. Dr. Greenwood appears to be about the only English author who has hitherto mentioned the place. Dr. Rieth, who is the Royal Bath Physician at Bertrich, informed the writer, at San Remo, that only quite recently were the claims of this spa to an assured place among the continental resorts being recognized beyond the limits of Germany. In the British Medical Journal, August 8, 1891, Dr. Greenwood has briefly alluded to this watering-place as follows : " Bertrich is about five miles from Alf, on the Moselle. It is situated in a deep ravine among richly wooded hills. The valley of the Alf, with its numerous side branches, is one of the most beautiful on the Moselle. Bertrich is now' becoming more than a local health-resort, as it is more accessible than formerly. It possesses tw'o thermal springs, giving a large supply of water (92° F.), and having a composition similar to that of Carlsbad. It is, however, much less concentrated, not altogether a dis- advantage, as in the opinion of Dr. Lauder Brunton the amount of water consumed is a very important factor in the treatment of certain diseases. Particularly is this the case in biliary concretions, a class of diseases which derive marked benefit from treatment at Bertrich. The town possesses good hotels and boarding-houses, the charges being exceedingly low. There are daily open-air concerts. Reunions and other entertainments are also freely provided." From Dr. Rieth I gather that the mountain air of Bertrich is pure and bracing, although the place is only 500 feet above the level of the sea. The climate is equable. Access.-The interesting towns of Trier and Coblenz are only a little over one hour's ride by rail from Bert- rich. The station for Bertrich on the Moselle Railway is Bullay, and a good carriage road leads in less than one hour to the spa. Steamers also ply between Alf, Trier, and Coblenz. Analysis.-For purposes of comparison the analysis of the Bertrich thermal water is placed side by side with those of Carlsbad and Marienbad. In 1,000 parts of Water: Bertrich. Carlsbad. Marien* BAD. Trink-oder Bergquelle (R.Fresenius and E. Hintz, 1890). Miihl- brunnen (Ragsbjs 1S62). Ferdinands- brunnen (Kersten). Sodium sulphate 0.886009 2.3387 5.0477 Sodium carbonate 0.728315 2.0024 1.8228 Sodium chloride 0.217757 1.0246 2.0047 Lithium carbonate 0.001843 Trace 0.0143 Ammonium carbonate 0.000720 Calcium carbonate 0.167511 0.3794 0.7839 Strontium carbonate 0.002773 0.0011 0.0009 Magnesium carbonate 0.152230 0.0524 0.6899 Iron protoxide 0.002564 0.0041 0.0849 Manganese protoxide 0.000232 0.0009 0.0216 Potassium sulphate 0.031828 0.2236 0.0423 Sodium bromide 0.000599 ? Trace Sodium iodide 0.000009 ? Calcium fluoride 0.0035 Trace Sodium phosphate 0.000130 Calcium phosphate 0.0002 0.0019 Aluminium phosphate 0.0003 0.0017 Sodium arseniate 0.000213 Sodium nitrate 0.0034S9 Sodium borate 0.001448 Trace Organic compounds Trace Trace Silicic acid 0.049100 0.0806 0.0964 Total 2.246770 6.1118 10.6130 Amount of free carbonic acid in 1,000 c.c. water 43.13 180.304 1127.74 Temperature of the water 32.9° C. 52.5° C. 9.0° C. (See Chemische Untersuchung der Trink-oder Bergquelle des Konigl. Bades Bertrich. Wiesbaden, 1891.) Indications.-Most diseases of the stomach are said to do well at Bertrich. The following morbid conditions are also treated with good results there : Abdominal plethora, hepatic affections, lithaemia, diabetes mellitus, obesity, and, finally, various nervous affections of the neurasthenic type. Catarrhal affections of the upper air- passages are also included in the rather large category 89 Bertrich. Blood-Stains. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. of complaints treated at Bertrich. Season, May to the end of September. Accommodation.-There are a number of hotels man- aged on the German plan, and a few apartment and boarding-houses. There are pleasant walks and drives, and the management is now liberal in the way of pro- viding amusements. Nevertheless Bertrich is still rather "quiet and dull." There .is a Kurhaus, and the thermal bathing estab- lishments are excellent. For patients of limited means, who need a mild Carlsbad treatment, a course at Bertrich may be advised. Edmund G. Wendt. BETA-NAPHTHOL BENZOATE (C10II7O, C7H6O). Obtained by the re- action that takes place between beta- naphthol and benzoic acid. It is a whit- ish, crystalline powder, very slightly solu- ble in water, freely soluble in chloroform and alcohol. It is recommended as a substitute for betol, having the advantages that benzoic acid possesses over salicylic acid. When introduced into the intestines it breaks up into beta-naphthol and benzoic acid. The former remains in the intestines until ex- creted by them ; the latter is absorbed and eliminated with the urine. The dose is from four to seven grains, frequently repeated. Beaumont Small. BETOL. The beta-naphthol ether of salicylic acid, analogous to salol, which is the phenyl ether of salicylic acid. It is obtained by the reaction between beta-naph- thol and salicylic acid in the presence of a dehydrating agent. It forms in small, white, brilliant crystals, almost devoid of taste and odor. Insoluble in water, soluble in alcohol and oils. Betol possesses antiseptic and anti- pyretic properties. It is not acted on in the stomach, but when it reaches the alkaline fluids of the intestines it breaks up into beta-naphthol and salicylic acid. It is recommended as a substitute for salol in rheumatic affections, cystitis, intestinal catarrh, etc. It has the advantage over salol of being composed of less toxic con- stituents. The dose is from five to eight grains. In combination with salicylate of bismuth it is particularly recommended in the treatment of the summer diarrhoea of children and in typhoid fever. Beaumont Small. BEX. A popular thermal and climatic station in the Canton of Vaud, Switzerland. Famous " salines." (SUPPLEMENT.) level. The little village is well known in Europe, but only very slightly in America. The writer, having spent several seasons at this resort, knows it to deserve greater recognition than has been hitherto accorded to it in our country. The "salines" themselves are of no mean im- portance, and the principal bathing establishment is a modern and commodious one. As for milk-, whey-, and Fig. 53.-The Valley of the Rhone, near Bex. grape-cures, there are few places where these can be more advantageously taken than at Bex. Invalids have also rare opportunities there for beautiful walks through a charming landscape, and, for the more hardy, distant mountain excursions offer strengthening recreation. Access.-Bex is a station on the railroad running through the valley of the Rhone. The village and Grand Hotel des Salines are reached by carriage or stage in fifteen minutes. From Paris the route is vid Geneva. Analysis.-The brine is conducted to the bathing establishment from the distant salt-mines. Ten litres of the brine contain (Bischoff) 1,703 gms. of solids. The principal ingredients, in ten thousand parts, are : Parts. Chloride of sodium 1567.0 Chloride of potassium 26.5 Chloride of magnesium .. 10.8 Sulphate of lime 67.6 Ten to twenty quarts of this brine are used for a bath. The diluted brine is also employed internally, after having been charged with carbonic acid gas. It contains, in addition to the salts mentioned above, a small proportion of iodides and bromides. Indications. - Apart from its ad- vantages as a climatic resort, specially emphasized by the late Professor Le- bert, Bex is now recognized to be an im- portant bathing station. The climate is about that of Montreux, although, in spite of its mountain-protected po- sition, harsh blasts occasionally sweep through the valley. The annual mean of the temperature is about 50° F. The following class of cases do well at Bex : Scrofula in all its manifes- tations, rheumatism in its subacute forms, catarrhal affections of the air- passages, paretic and paralytic states after diphtheria and other infectious diseases, asthma, neurasthenia of the milder type, and the earlier stages of phthisis. Certain uterine affections, such as metritis, subinvolution, etc., are also benefited by a mild course of the baths. All patients in whom even moderate stimulation of the ner- vous system is liable to do harm should be warned Fig. 52.-View of Bex, Looking Toward the Dent du Midi. Location.-Bex is beautifully situated in an expan- sion of the Rhone Valley, and at" no great distance from Vevey, on the lake of Geneva. It is 1,400 feet above sea- 90 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Bertrich. Blood-Stains. against using the Bex treatment. The thermal establish- ment is thoroughly equipped with inhalation cabinets, sprays, douches, and the usual outfit for hydrotherapy. The quality of the grapes used for the cure is excellent. Accommodation.-The Grand Hotel des Salines is an excellent establishment of its kind, situated at some dis- tance from and about 150 feet above the village proper. In the latter very reasonable and fairly good board is obtainable. The Pension du Crochet is a popular family hotel on a small scale. Edmund C. Wendt. BILIN. A watering-place in Bohemia, where the famous " Sauerbrunn," or "cold Vichy," is found. Location.-Bilin is only two miles south of Teplitz- Schonau, the oldest watering-place in Bohemia. It is situated in the fertile valley of the Bila. The town has 6,000 inhabitants. The famous castle of Lobkowitz is located in this place. Over three millions of bottles of this saline water are annually exported, but it is not a largely frequented resort. Access.-Bilin is now a station on a branch line of the Bohemian Railway. Analysis.-In one thousand parts of the Bilin water there are contained : Parts. Sodium carbonate 3.363 Sodium chloride 0.381 Sodium sulphate 0.719 Magnesium carbonate 0.171 Lithium carbonate 0.010 Carbonate of lime 0.410 Total solids 5.054 Free carbonic acid gas 1.409 The springs have a temperature of 53° F. Indications.-Catarrhal conditions, Bright's disease, gravel, gout, diabetes, obesity, hemorrhoids, dyspepsia, and many affections of the genito-urinary system are said to derive benefit from a course of these waters. Accommodation.-There is a Kurhaus, several hotels and boarding-houses. Edmund C. Wendt. BISKRA. A new winter resort, in the province of Algiers, Africa. According to Dr. Madison Taylor (the Climatologist, November 15, 1891), Biskra is an oasis at the north edge of the desert of Sahara. The author named gives the following account of this new place : "Here the fashionable world, especially the French- speaking monde and those who follow in their wake, claim that they have found the most charming place ■wherein to spend the winter. They have already stimu- lated capitalists to build handsome, thoroughly equipped hotels there, and the tide of fashion is steadily setting that way. It may be briefly described as the terminus of the railroad running south from the great ports on the North African coast, the chief of which are Algiers and Philippeville. From either harbor railroad communica- tion is to be had, via Constantine, to the very edge of the desert, Biskra. Here is the centre of the various caravan routes across the Sahara." Among the attractions " the charm of Oriental scenes " is mentioned. " As to the climatic advantages of all this region, it need only be said that it is sufficiently high, being practically on the sides of the Atlas Mountains, to enjoy all the at- mospheric charm of elevated table-land. Near by, on many sides, are snow-capped mountains throughout the bulk of the year. Southward the enormous expanse of sand absorbs and retains the heat of the tropical sun, over which almost no cloud passes throughout the entire year. In the immediate neighborhood of the mountains, however, local vapor condensations occur, and showers are numerous enough at certain times ; but the character- istic of the climate is steady, uniform, dry warmth. The elevation of the place modifies this to just about the proper degree. There is, then, a practically uniform climate throughout the year. It is not only dry, but bracing, at no time cold, and only in midsummer un- bearably hot as the equatorial rays become completely vertical. The season is, therefore, a long one ; the possi- bility of malaria almost nil, because of the intensely (SUPPLEMENT.) drying properties of the vast volume of sun-heated, sand- reflecting desert air. In the valleys there is a little verdure in some places, very charming to behold, the sight of which, seen here and there on looking down upon the desert oases, inexpressibly gladdens the eye. Among the charming possibilities of the place are visits on horseback to other oases lying near by. " Access.-Biskra is now accessible from Gibraltar, from Marseilles, or from Genoa. The North-German Lloyd steamers sailing to Genoa stop at Gibraltar. From Marseilles the voyage to Algiers is only a little over twenty-four hours. Edmund C. Wendt. BLACKPOOL. A popular seaside resort in Lan- cashire, England. It is situated to the north of the estuary of the Ribble, about sixteen miles west of Preston by rail. It can be easily reached from Manchester and Liverpool. Dr. Yeo ("Climate and Health Resorts"} gives the following account of this place: "Blackpool has no protection to speak of, and lies fully open to the westerly winds which prevail on this coast. It has a fine seaport, bracing air, and miles of good sands for bathing." The sanitation, drinking-water, and provisions- for amusements are quite satisfactory. Season, May to October. Edmund G. Wendt. BLOOD-STAINS. In the examination of stains upon weapons, clothing, or other objects, in medico-legal cases, the objectshave often been partly washed or subjected to- influences which render identification difficult and some- times impossible, especially when the quantity of material for examination is small.. The methods of examination by the guaiacum test and by the spectroscope have been fully treated in the article on Blood-stains in Vol. I. of the Handbook. The micro-chemical examination of stains to produce hamin crystals, or crystals of hsematin, or Teichmann crystals, when only minute stains are to be examined, is so important that we deem it desirable to give the follow- ing directions, which we have translated from " Precis de Medecine Legale," by Ch. Vibbert: " The Teichmann crystals are so characteristic that when once seen they are afterward easily recognized. The operations for obtaining them are exceedingly simple, but require great care and patience. To avoid failure, persons but little accustomed to these minute investiga- tions should follow carefully the methods here described, especially if, as often happens, only minute portions of the suspected material are available for these researches. "(a) Solution of the Stain.-If the stain is small and no- speck or clot to be removed can be seen, cut out the stain, following the edges of the stain, with scissors ; place the stained piece of cloth on a glass slide, and put on it a few drops of water, just enough to moisten it, for it is better to get a solution somewhat concentrated After macera- tion till the liquid is considerably colored, press out the liquid with a scalpel or a needle, and remove the cloth, leaving the colored fluid on the slide. Avoid spreading the liquid, but dry it slowly so that it shall make a small, deeply colored spot on the glass, not entirely opaque but somewhat transparent, so that the preparation can be- examined with the microscope. " If the stains are very small several may be taken and macerated together to obtain sufficient coloring matter for the subsequent manipulations. If the stain is on wood, a thin layer of the wood may be removed with a sharp knife or lancet, and treated as directed for a frag- ment of cloth, only the maceration should be continued much longer. " If it is not possible to lift the stain from the object, a ring of wax may be formed around it, making an enclos- ure that will hold a little water, which may be applied ta absorb the stain. When the water has absorbed the coloring matter, it may be transferred to a slide by means of a pipette. " (&) Evaporation of the Liquid.-We may allow the liquid to evaporate spontaneously, but it may be hastened by heat, only it is necessary to heat it very moderately, not exceeding a temperature of 60° Centigrade ; for if the 91 Blood-Stains. Blood-Stains. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. heat is sufficient to coagulate the albumin it will interfere with the production of crystals. We generally warm the slide over the flame of an alcohol lamp, being careful that the temperature does not exceed that which is not uncomfortable when the slide is laid upon the back of the hand. It is important to heat the liquid around the borders and not in the centre, so as to prevent the liquid spreading over the slide, which would much interfere with subsequent operations. "(c) Action of Reagents.-To the evaporated residue a little common salt should be added. Too much is injuri- ous. It is better to make a solution of 1 part of chloride of sodium with 500 or 1,000 of distilled water, and add one or two drops of this solution. It is more conven- ient to use this solution in the first place for dissolving the stain, instead of using simple distilled water. It saves time and nothing is changed. Sometimes crystals can be obtained by treatment with acetic acid without the addition of salt, there being sufficient chloride of sodium in the blood, but it is better to add the salt than risk a failure in an important case. " In whatever part of the process the chloride of sodium has been added, the preparation must be thoroughly dried afterward before the acetic acid is applied. This acetic acid monohydrate is called glacial or crystallizable. (It solidifies at the freezing-point, or zero Centigrade, and does not again liquefy until the temperature is raised to 17° Centigrade.) The addition of a small quantity of water transforms it to acid hydrate, which interferes with this reaction. " Place a drop of the acetic acid monohydrate on the preparation and evaporate with heat, which may be in- creased and continued, but which succeeds better if it does not quite reach the boiling-point. When there is but a small quantity of the suspected material, it is es- pecially important to use all these precautions. The acid should be taken up with a tube drawn out to a fine point, so that only a very small drop may be added at a time ; place the droplet iii the centre of the red deposit •on the slide, and allow it to spread a little, but not to spread beyond the limit of the stain ; for this purpose the heat of the lamp should be applied around the bor- ders at various points, tipping the slide as may be neces- sary to retain the fluid on the red deposit only; a red line is thus formed about the borders when the coloring matter becomes thickened, and the acid remains on the stain till evaporation is completed. It is on this border that the crystals are commonly formed, and they are to be looked for by aid of the microscope. " It is not common to find crystals after adding only a single drop of acid, but it is generally necessary to add drop after drop, evaporating each with the greatest care, examining the specimens from time to time where the red lines are formed one after the other as it is repeatedly treated with acid and dried. When this experiment is performed under favorable conditions, a multitude of distinct crystals are found. Often, however, we find only irregular masses of brown or dark coloring matter, and the remainder of the preparation filled with coagu- lated albumin and foreign bodies, which have become mixed with the stain. If we have added solid particles ■of chloride of sodium to the coloring matter, we are apt to find crystals of this salt formed in cubes, in stars or small, colorless globules, and even lance-shaped crystals of acetate of sodium may be formed. All these crys- tals, arranged together in beautiful forms, may often be found. " In such cases, we select a point where the coloring matter is collected in considerable quantity, and there apply another small drop of acid and let it evaporate as before. By repeating this operation we sometimes ob- tain a large collection of very small crystals mingled with other matter, but when we find crystals in the form of a cross or in stars, it is very certain that they are chlorohydrate of hsematin, and we may perfect the prep- aration by the addition of small drops of acetic acid. " If doubt still remains in regard to the nature of the crystals, the specimen should be examined by the aid of polarized light. The albuminous or saline substances (SUPPLEMENT.) allow the field to remain dark, but the crystals of hsema- tin appear bright on a dark field. " By carefully following the precautions stated above, one can almost always obtain crystals of haematin, even with a very minute quantity of blood. The reaction is successful with very old stains. Many experts have ob- tained crystals of haematin from stains of blood ten, fifteen, and even forty years old. It sometimes hap- pens, however, that it is impossible to obtain crystals when the stains are only a few months old. This is es- pecially the case when the blood has been allowed to putrefy before drying. Contact with perspiration, grease, or tannin also appears to interfere with the formation of crystals. " Two sources of error are to be noticed in connection with this test for blood. Crystals of murexide (purpu- rate of ammonia) have a form very similar to crystals of haematin, but they are of a bright red, and they acquire a violet color by contact with a solution of potash ; but it is very difficult to imagine how it can be possible to obtain crystals of murexide by treating a stain with com- mon salt and acetic acid. A mistake may easily occur with crystals formed from indigo. Cloth colored with this material will sometimes furnish a deposit of crys- tals, which will not dissolve in acetic acid and which have a form very similar to crystals of haematin. Their color is blue, it is true, but when the color is very deep it can scarcely be distinguished from brown. Descoust, by simply w'ashing with water a piece of flannel of blue- violet color obtained crystals of the form and reddish- yellow color almost exactly like crystals of haematin. This is a more serious cause of error than is generally admitted in books on legal medicine. "When a stain to be examined is found on clothing colored with indigo, it is important before examining the stain itself to examine pieces of the garment which are not stained to see whether they will deposit crystals of indigo. The comparison between these crystals and those obtained from the stain may remove all uncertainty if, for example, the crystals obtained from the stain are very numerous, and those obtained from the unstained cloth are very few and of a blue color. If the similarity of the two species of crystals is very close we may try the guaiacum test. The crystals of hsematin will color the guaiacum blue, while the indigo has no effect upon it. " When the crystals of haematin have been obtained they may be preserved for an indefinite period by adding a little glycerine and covering the preparation with thin glass. The expert should preserve the preparation with care as a proof of the correctness of his conclusions." Microscopic Examination. - In the examination of blood-stains it is found that some of the corpuscles are more easily separated from the clot than others. Where the stain shows specks of dried clot which can be sepa- rated from the fabric they are more likely to resume their normal form and size than when the stain is thin- ner ; yet single corpuscles can often be found here and there on threads or on fibres of wool, cotton, or silk. If a few drops of a solution of iodine or of eosine are added to the solvent the corpuscles are more likely to remain visible. The chief difficulty is, that any solvent which will liberate the corpuscles from the fibrin will at the same time dissolve the coloring matter of the corpuscles and render them so transparent that they are practically invisible. Stains upon weapons of iron or steel are often so mingled with rust that great difficulty is encountered in recovering the corpuscles. If the colored substance, supposed to consist of rust mingled with blood, is placed upon a slip of glass and a drop of dilute hydrochloric acid added, the acid will dissolve the rust and some- times bring to view the blood-corpuscles, which may be measured before they are destroyed by the acid. It often happens, where the stain is old or very minute, that while corpuscles may be identified, the haemoglobin is so changed or decomposed that no absorption bands can be seen in the microspectroscope, and no haemin crystals can be obtained by treating with acetic acid and chloride of sodium. So also the stain, if old, will gener- 92 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Blood-Stains. Blood-Stains. ally be so changed that the number of corpuscles to be seen and measured is small compared with what might otherwise be expected from the extent and color of the stain. Since my article on blood-stains was written, in 1885 (see vol. i., pp. 575-589), increased attention has been given to this subject by medico-legal writers, and mod- ernized views have been published, mingled with much that was written before the great improvements in the microscope revolutionized the work of medical experts. Professor John J. Reese, M.D., in the second edition of his "Text-Book of Medical Jurisprudence," 1889, says, p. 132 : ' ' Given a skilled and careful microscopist, with a good instrument of proper amplification, it will gener- ally be possible to diagnosticate a human blood-stain from that of any of the lower animals, with the possible exception of the guinea-pig and opossum. (We exclude, of course, those few animals, more rarely met with, ■whose corpuscles are larger than the human, viz. : the elephant, great ant-eater, walrus, whale, sloth, and capy- bara.) It will always be possible absolutely to distin- guish between human blood and that of the ordinary domestic animals-the ox, pig, horse, sheep, and goat- with which it is most likely to be confounded." In apparent opposition to the above quotation from the Professor's book we find in the Medico-Legal Journal of New York, for September, 1892, a letter from Pro- fessor Reese, addressed to the editor, Clark Bell, Esq., in which he says : " Certainly (as stated in Taylor's) there is no difficulty in detecting corpuscles much smaller than toVo of an inch, as, e.g., those of the horse, sheep, and goat. The present general idea seems to be that while it is ad- mitted that a skilful microscopist can certainly distin- guish between a human corpuscle and one of a horse, cow, pig, sheep, and goat (domestic animals with which it would be likely to be confounded), still, in a murder trial, where human life is at stake, the expert is hardly warranted to swear that the blood is anything more than that of a mammal." The proper bearing of the above statement we shall consider below. In " The Law of Expert Testimony," by II. W. Rogers, A.M., LL.D., St. Louis, Mo., 1891, we find much that is interesting on the subject of blood-stains. Brief ab- stracts of testimony in the famous Cronin case are given. The most important for our purposes are the views of Professor Marshall I). Ewell, M.I)., who testified in that case, giving his opinion " that in the present state of science it was impossible to determine in the case of a specimen of dried blood by the measurement of the blood-corpuscles anything more or further than the mere fact that it was the blood of some mammal." He said: "I am very decidedly of the opinion, judging from my experience, that in the present state of science it is impossible to determine certainly, even under the most favorable circumstances, that any given specimen of fresh blood is human blood." In the Medico-Legal Journal, September, 1892, p. 178, Professor Ewell claims that the possible imperfections of micrometers which have not been carefully tested by a common standard may account for the different average dimensions of blood-corpuscles as reported by different observers. Also that the personal equation of the ob- server causes a difference in the results as shown by sam- ples reported. Third, that measurements by the Jackson micrometer, when low powers are used, are less accurate than measurements by the filar micrometer, but that with high magnifying powers there is little difference in accu- racy between the Jackson micrometer and the filar mi- crometer. Next, Professor Ewell shows that there are appreciable differences in the average dimensions of blood-corpuscles taken from the same person on different days, and in different circumstances ; and, further, that the average diameter of the human blood-corpuscle is greatly affected by different diseases. Lastly, that when blood has been dried on weapons, clothing, or other objects, and exposed to unknown con- (SUPPLEMENT.) ditions, there is no certainty that any treatment will re- store the corpuscles to their normal diameter, so as to allow an expert to determine from what animal the blood was derived. From the above considerations, illustrated by careful observations reported in his paper, Professor Ewell for- mulates the following conclusions : Summary (by Professor Ewell).-" (1) The only pro- posed methods of identifying blood that are worthy of discussion are (a) Teichmann's process of obtaining hse- min crystals; (b) the guaiacum test; (c) the spectro- scopic test; (d) the microscopic identification of red blood-corpuscles; and (e) the micrometric test. The last method only will be here discussed. "(2) In the use of the micrometric test no confidence can be placed in the result, unless the errors of the mi- crometer used, with reference to some authentic standard, are known. " (3) Where the subject continues during a short period in substantially the same condition of good health, there appears, in the hands of the same observer, to be an average size of the fresh corpuscles, provided at least one hundred corpuscles are measured. " (4) There are such large discrepancies between the averages obtained from the measurement of the fresh blood-corpuscles of animals of the same species, and between measurements of the same objects by different observers, as to throw doubt upon the published results. Several tables of measurements are given (by Professor Ewell) to prove this statement. " (5) There is no advantage in using very high power in such investigations. " (6) Drying the blood-corpuscles in a clot multiplies the difficulty of identification. It has never been proven that dried corpuscles can be restored to their normal proportions. ' ' (7) The mean size of the red corpuscles of very young animals is larger, and their size varies between wider limits, than in adults. " (8) Many diseases alter the size of the red corpuscles; especially is this so in microcythaemia. "(9) Fasting diminishes both the size and number of the red blood-corpuscles. So also in the case of various drugs. "(10) In view of the foregoing it is impossible in the present state of science to say of a given specimen of blood, fresh or dry, more than that it is the blood of a mammal." As the paper by Professor Ewell, of which the above are his conclusions, has been largely quoted in the third edition of Reese's " Medical Jurisprudence," and as Pro- fessor Ewell is now the most prominent opponent of medical experts on blood-stains, the above conclusions will be examined in detail. As a general proposition Professor Ewell's statement (it will be readily admitted) that no certainty of accurate measurement can be claimed unless we have micrometers graduated and tested by some acknowledged standard, is true, yet it is a remarkable fact that the measurements of human blood given by Gulliver, in 1875, ; Wormley, in 1885, ; Schmidt, in 1848, 3^; French Medico- Legal Society, in 1873, 3^7- ; Masson, in 1885, tzVt ; Hans Schmid, in 1878, ; Woodward, in 1875, ; For- mad, made at distant intervals and without com- parison by a common standard, differ by less than one- sixth of the difference between the blood of man and that of the pig. This objection does not apply to comparative measure- ments of blood of different animals, where the expert, using always the same micrometer, bases his diagnosis on his own measurements alone. At present, however, it is easy for the expert to obtain micrometers made by skilful workmen and carefully rated by comparison with a re- liable standard. In regard to the discrepancies noticed by Professor Ewell between the measurements of blood-corpuscles made by different observers, it is to be noticed that the different writers fail to state whether they measured from outside to outside of the dark border of the corpuscle, or 93 Blood-Stains. Blood-Stains. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) whether, like Dr. Woodward, they measured from the centre of the dark border on one side to the centre of the dark border on the other side, or whether they rejected the whole of the dark border on both sides, considering that as only a shadow and not a part of the corpuscle. We claim that the whole of the dark border on both sides is to be measured. This we have proved by grind- ing glass disks in the form of the corpuscle, with rounded edges, and examining such disks with the microscope. We have also studied the blood-corpuscle by reflected light, by means of Beck's patent illuminator, measuring it with the micrometer when no dark border was shown, and then with transmitted light again measuring the same corpuscle. In both conditions the measurement was the same. Another source of difference in measurement is in the mode of obtaining and preparing the blood for measure- ment. If a string is tied around the finger or the circu- lation is impeded in any other manner, and the blood is obtained by pricking with a needle, and is then spread upon a slide, the corpuscles, deprived of a portion of serum, will measure less than if obtained from a cut with a lancet where the circulation is not obstructed. * So also, if the blood is drawn from the prick of a needle in a warm and dry atmosphere, the corpuscles begin to contract before they can be spread upon a slip of glass. None of these considerations enables us to reconcile all the discrepancies noticed by Professor Ewell in the writ- ings of different authors ; but the great fact is shown, by the unanimous consent of all microscopists, so far as we can ascertain, that less than three thousand five hundred (most writers say less than three thousand three hundred) corpuscles of human blood are required to measure an inch, when placed side by side ; while more than four thousand corpuscles of the pig are required to measure an inch, and for the horse, ox, cat, sheep, and goat still more are required. Hence all authors agree that there is a remarkable difference between the average diameter of the human blood-corpuscle and that of any domestic animal except the dog. Taking the pig as the representative of domestic ani- mals, because its corpuscles are larger than those of the ox, horse, cat, sheep, or goat, the following comparison between the blood of the pig and human blood is very significant. To determine the extent of the possibility of mistak- ing the blood of the pig, ox, horse, sheep, or goat for human blood, we will examine the table of measure- ments made by J. B. Treadwell, M.D., using a ^-inch objective made by R. B. Tolles, and Jackson's Eye-piece Micrometer, made by Tolles, ruled by Professor Rogers, and a stage micrometer ruled, tested, and rated by Pro- fessor Rogers. In this table the measurements of 3,000 corpuscles are given, 200 having been taken from each of fifteen differ- ent persons. The measurements are given maximum and minimum by tens, by twenties, by fifties, and by one hundreds, and by two hundreds. Six hundred corpus- cles from pigs were measured, 200 from a pig three weeks old, 200 from one of two months, and 200 from a pig three months old. As the corpuscles of the pig have a larger average than those of the ox, horse, sheep, or goat, we make our com- parison between the blood of man and the blood of these three young pigs. Mikrons. Smallest twenty from man 7.662 Largest twenty from the pig 6.466 Difference 1.196 This equals 0.000047 of an inch = inch- Smallest fifty from man 7.768 Largest fifty from the pig 6.246 Difference 1.522 This equals 0.000060 of an inch = Tt>kw inch. Smallest hundred from man 7.852 Largest hundred from the pig 6.169 Difference 1.683 This equals 0.000066 of an inch = ts j-jy inch. We thus see that where only ten corpuscles are meas- ured in man, taking the smallest average of ten consecu- tively measured, this average for an adult man is one- sixth larger than the largest average of ten consecutive corpuscles measured from a young pig only three weeks old ; while the average of the smallest one hundred from man, taken consecutively, is about one-fifth 4s larger than the largest one hundred taken from the young pig. I fully agree with Professor Ewell that there is no advantage in using very high powers in measurement of blood-corpuscles. By this is meant that for actual work and careful measurements a magnification of 1,000, or at most 1,500, diameters is quite as good as the use of higher powers. Beyond this limit increased enlargement is ob- tained at the expense of clearness of outline. Mathemat- ical demonstration proves that the apparent thickness of the object increases as the square of the apparent diame- ter increases. (See Naegeli and Schwendenef on the Mi- croscope ; also Carpenter on the Microscope, edited by Dallinger.) I have no controversy with those who have used pow- ers of 3,000 or 4,000 diameters ; I have myself photo- graphed blood-corpuscles with about 4,000 diameters linear, but the results are no better than with an enlarge- ment of 1,500 diameters. Gulliver's measurements were made with powers of about 600 diameters and yet they present but insignifi- cant variations from the work of the latest observers, who have used magnifying powers of 2,000 to 3,000 diameters. Professor Ewell's sixth proposition is apparently, more than all the others, the one on which he depends for sup- port of his final conclusions. He says : " Drying the blood-corpuscles in a clot multiplies the difficulty of identification. It has never been proven that dried cor- puscles can be restored to their normal proportions." I would call attention again to the table on p. 587, Vol. I. of the Handbook, giving the measurements of 3,000 corpuscles of fresh human blood, including males and females, of all ages, from infants at birth to the man of seventy. The measurements are in mikrons. Number of individuals. Number ofcor- puscles. Aver- age. Max. Min. By 10s. By 20s. By 50s. By 100s. By 200s. 15 persons as stated. 1 3,000 7.938^ 4.233 10.160 7.658 8.298 7.662 8.191 7.768 8.079 7 852 8.046 7.918 7.983 Blood-stains, 1,000 7.910 4 6.101 5.570 9.687 7.700 8.184 7.723 8.010 3 young Pigs- 000 3.849 8.391 5.418 6.520 5 757 6.466 5.880 6.246 6.028 6.169 6.069 6.144 Mikrons. Man, smallest ten 7.658 Pig, •• " 5.418 Man, smallest twenty 7.662 Pig, " " 5.757 Man, smallest fifty ... .... 7.768 Pig, " " 5.880 Man, smallest hundred 7.852 Pig, " " 6.028 Mikrons. Largest ten 8.298 " " 6.520 Largest twenty 8.191 " " 6.466 Largest fifty 8.079 " " 6.246 Largest hundred 8.046 " " 6.169 Here we see that the average of 1,000 corpuscles re- stored and measured from stains of human blood is 7.910 mikrons, all probably being stains from the blood of adults ; while the average from fifteen persons (three be- ing infants) is 7.938 mikrons. The maximum, where infants are included, in fresh blood is a little more widely separated from the minimum than in the restored stains from adults. So also the range, when taken by Mikrons. Smallest ten from man 7.658 Largest ten from the pig 6.529 Difference ... 1.138 This equals 0.000045 of an inch = 222^ inch. 94 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Hlood-Stains. Hlood-Stains. tens or by twenties, is a little less for restored blood than for fresh blood, for the same reason. No closer simi- larity of results could have been expected had all the measurements been taken from fresh blood ; one set in- cluding infants and the other being taken from adults alone. The fact that there is this difference given above goes to show the great accuracy and perfect restoration ■of dried blood-corpuscles to their normal dimensions. As a further confirmation of the possibility of restor- ing dried blood-stains to a condition in which their di- mensions can be properly compared with fresh blood-cor- puscles, I copy by permission the following table from Professor Wormley's " Micro-Chemistry of Poisons." If we take Wot of an inch or 7.937 mikrons as the gen- erally accepted average diameter of human blood-cor- puscles, and with it compare the average obtained by Professor Ewell from blood in disease, we find his lar- gest average in plumbism, or lead-poisoning, is 8.65 mi- krons, or one-twelfth part larger than the normal average. Now, if we take the young pig, which, excepting the dog, is the domestic animal having the largest corpuscles, and to the normal average, 6.101 mikrons, add one-twelfth its diameter, or 0.508 mikrons, we shall obtain for a pos- sibly diseased pig an average diameter of 6.609 mikrons ; smaller by 1.318 mikrons than the average human blood- corpuscle. Certainly no microscopist of ordinary skill would be in any danger of confounding blood of such a diseased pig with human blood recovered from a stain. The only remaining possibility of mistaking stains from blood of a pig, ox, horse, sheep, or goat for human blood, when fifty or one hundred corpuscles have been measured and found to average 7.9 mikrons, or even 7 mikrons, is to suppose it possible that the expert has wickedly and purposely measured only the largest corpus- cles and has not done honest work. With a magnifying power of 1,000 diameters, a Jackson's micrometer meas- ures with great certainty to Ww of an inch. Professor Ewell's filar micrometer, as he states, is graduated to one millionth of an inch, and is certainly reliable to of an inch. Hence, no expert can have any difficulty in recognizing with absolute certainty differences of 1.3 mikrons equal Tvhrii of an inch. Professor Ewell says that, " by selecting the corpus- cles, it would be possible for a dishonest observer to make the average much larger or smaller than the above given (in his table) without the possibility of detection ; a fact, the bearing of which upon the value of expert testimony upon this subject is so obvious as to need no comment." I have never claimed, and shall not now claim, that it is any more difficult for a witness to swear falsely in regard to blood-stains than in regard to any other subject. But it would be quite possible on cross- examination to ask the expert whether, in measuring the corpuscles obtained from a stain, he had measured all the well-defined corpuscles in the field of the microscope, or whether he had selected the large corpuscles and rejected others which were smaller. In treating blood-stains with solvents of fibrin, to lib- erate the corpuscles for measurement, it has been found in many cases that the'corpuscles were smaller than in fresh blood unless maceration was long continued, old stains requiring several weeks before the corpuscles were in a condition to be measured. When a biconcave blood- corpuscle is placed in water, the coloring matter (haema- globin) is dissolved out, the corpuscle swells up, thickens at the edges, becomes transparent and spherical. In this condition the diameter of the corpuscle becomes less than normal. It thus happens in examining blood-stains that all corpuscles which have lost their color or have become spherical are by some experts rejected and not measured. Some corpuscles in fresh blood have much more coloring matter than others, and these corpuscles retain their color and form (as we think) much longer than paler corpuscles. We are not aware that any fluid used or likely to be used for softening blood stains will cause the corpuscles to become larger than normal. If the corpuscles obtained from a stain do not recover their normal dimensions it is almost absolutely certain that their average measurement will be less than normal and never greater than normal. Thus, in the language of Professor Wormley, we may confidently say : " Thus, then, while the blood of man might on account of contrac- tion in diameter of the blood-corpuscles be confounded with that of some animal having smaller corpuscles, the reverse could never occur." From this discussion I claim that it has been proved beyond any reasonable question : (I) That in favorable cases blood-stains can be so treat- ed that reliable measurements and credible diagnosis of their origin can be given, as shown in the tables given and in others which might be referred to. (2) That if error occurs on account of imperfect resto- Animal. Age of stain. Remarks. Average. Fresh blood. ■(I) Human .... 2 months old. Stain, unknown. Inch. 1-3358 Inch. 1-3250 {2) Human .... 2^ " " Stain... 1-3236 1-3250 (3) Human .... 3 Stain 1-3334 1-3250 (4) Human .... 19 " Clot 1-3290 1-3250 (5) Elephant... 13 " Clot 1-2849 1-2738 (6) Dog 4 Trace of stain un- 1-3626 1-3561 (7) Rabbit 18 " " known Clot 1-3683 1-3653 (8) Ox 16 " " 1-4544 1-4495 1-4219 1-4219 (9) Ox 32 " " Stain, unknown. (10) Ox 44^ years " Clot... 1-4535 1-4219 (11) Buffalo .... 18 months " Clot 1-4312 1-4351 (12) Goat 17 " Stain 1-5S97 1-6189 (13) Ibex 18 " Clot 1-6578 1-6445 Examination of Old Blood-Stains. "In the case of the human blood No. 1, two months old, the deposit was in the form of a thin stain on mus- lin, and its nature, other than that it was mammalian blood, was unknown at the time of examination. The corpuscles were readily found, and two series of thirty corpuscles were measured. In the human blood two and a half months old, fifty corpuscles ranging from anTX to Wr? of an inch, were measured. " The blood-stain of the dog, No. 6, was prepared by Dr. Frankenberg, and consisted of a single stain so mi- nute as to be barely visible to the naked eye ; its nature at the time of the examination was unknown. In this in- stance only fifteen corpuscles were measured. In the bx blood four and a half years old, the corpuscles were rather readily obtained, and two closely concordant series of measurements were made." Another table, quoted by Clark Bell, Esq., in his arti- cle on " Blood-Stains" in the Medico-Legal Journal, Sep- tember, 1892, p. 157, is worthy of careful study in this connection. It shows results of examinations of blood dried on knives, glass, wood, cloth, paper, and stone, with measurements corresponding very closely with measure- ments of fresh blood. I take great pleasure in acknowledging my obliga- tions to Professor Ewell, from whose valuable articles on micrometric study of 4,000 red blood-corpuscles, pub- lished in the Medico-Legal Journal for September, 1892, I have compiled the following table : Source of Blood. Number of corpuscles. Mean in Mikrons. Maximum. Minimum. By hundreds Maximum. By hundreds) Minimum, j Robust man 650 8.03 9.98 5.03 8.28 7.95 Boy thirty-six hours old 200 8.86 11.39 5.70 9.06 8.65 Adult man 100 7.85 9.32 6.73 Purpura htemorrhagica 200 8.26 10.87 3.45 8.28 8.25 2 cases pseudo-leucocythaemia. 400 8.04 11.04 6.56 8.55 8.42 Tuberculosis anaemic 100 8.35 10.70 5.35 Plumbism 100 8.65 10.10 5.18 Gastritis 100 8.32 10.18 6.22 2 cases syphilis 200 8.11 9.32 3.97 8.11 8.11 Erysipelas 100 7.83 9.15 6.90 Pernicious anaemia 100 7.69 9.93 6.04 Menstrual blood 100 7.71 8.80 5.76 Whole number measured... 2,350 8.14 11.39 3.45 9.06 7.95 95 Blood-Stains. Bourbonne. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. ration of the form and diameter of the corpuscles obtained from a stain, proved (by, a, the guaiacum test ; b, the spectroscope ; c, by the production of haemin crystals) to be blood, the error, if any, will be to make human blood appear like that of one of the inferior animals, and never to mistake the blood of the ox, pig, horse, sheep, or goat for human blood. (3) In general, when a stain has been proved to be blood by the above tests, it may be decided certainly whether it is or is not mammalian blood. So, also, a stain from the blood of the ox, pig, horse, sheep, and goat maybe distinguished from human blood, thus con- firming the claim of an accused person in many cases that his clothes are not stained with human blood. This negative testimony is certainly quite as important in many cases as testimony inculpating a prisoner. Lastly, the expert can say, when the average of a suit- able number of corpuscles from a blood-stain corresponds with the average of fresh human corpuscles, that the stain is certainly not from the blood of the ox, pig, sheep, or goat. Such testimony by a skilled microscopist is of untold importance in saving the lives of the innocent, and often in overthrowing the plea of those who are guilty. Such testimony is quite as reliable and important to the welfare of society as that of the chemist who testifies to the pres- ence or absence of poison that might have some resem- blance to the many recently discovered ptomaines. The testimony of the expert might take the following form, as recommended by C. II. Vibbert, " Precis de Medecine Legale : " " This stain is not composed of the blood of such an animal (ox, sheep, horse, pig, or goat) as the accused claims. It is like the blood of man, or some animal having corpuscles very nearly the same size as those of man, as the dog or rabbit." Or the declaration may take the reverse form, thus : " This stain is not composed of human blood ; it might be the blood of a horse, ox, pig, sheep, or goat, as claimed by the accused." Such declarations are justified, then, and then only, when the examination has been conducted with great care and the measurements have been made with reliable instruments. Moses C. White. BOOKLET. A thermal station .near Kissingen, Bavaria, much frequented by patients from Kissingen. Location.-This little village is only a few miles, in a northerly direction, from Kissingen. Its strong chalyb- eate springs are often used by patients taking at the same time a course of treatment at the larger spa. Ils climate is mild, and it is a simple little village, affording more quiet and cheaper comforts than are obtainable at the crowded spa of Kissingen. Access.-By carriage or on foot from Kissingen. Stages run between the two places. Analysis.-In one pint there are contained : Grains. Carbonate of iron 0.67 Carbonate of lime 0.54 Carbonate of magnesia 3.60 Chloride of magnesium 4.43 Chloride of sodium 6.55 Sulphate of sodium 4.54 Sulphate of magnesium 3.23 The spring is also very rich in free carbonic acid gas. Indications.-Anaemia, chlorosis, neurasthenia, dis- eases of women, especially when associated with ten- dency to constipation. Diabetics are also said to be benefited there. Accommodation.-There is a Kurhaus, small hotels, and a number of boarding-houses, all moderately good. Edmund C. Wendt. BONE TRANSPLANTATION. One of the most in- teresting of the various fields opened up since the advent of aseptic and antiseptic surgery is that of grafting and transplanting tissues from one part to another of the same or different animal or person. The success with which (SUPPLEMENT.) this can be done in the case of the skin is well known. Failure is the exception. Far different is the result when other tissues are made use of. Experiments with muscle, nerve, and tendon transplantation are, in almost all cases, failures ; very few successful cases have so far been reported. As regards the results, osseous tissue oc- cupies a position midway between these two groups ; the skin on the one hand, and muscle, nerve, and tendon on the other. While in the case of certain bones the re- sults are so favorable that bone transplantation is con- stantly employed, in others only isolated successful cases are reported. As a result of a large series of experi- ments, Adamkiewicz (Centralblatt fur Chirurgie, 1889, Nos. xi. and xxxviii.) reaches the following conclusions : Pieces of bone, from one-half to three-fourths centimetre in diameter, unite perfectly well when they are replaced after having been removed, as by trephining. The pieces can lie exposed to the air or in a two to three per cent, car- bolic acid solution, five or ten minutes without impairing the result. Larger pieces, over one centimetre in diameter, also unite perfectly well, even when the edges are not entirely smooth. Bony union takes place where osseous structures come in contact and the interstices are filled with a fibrous tissue. There is no need of taking any special care that the edges fit accurately. The surfaces of the transplanted bone retain their original form and smoothness. He claims that the periosteum takes no necessary part in the process ; that the same results are obtained by transplanting pieces entirely stripped of their periosteal covering. The highly cellular connect- ive tissue filling in the interspaces later becomes ossified, either by separate centres of growth, or by the ossification proceeding from the periphery inward, until union is complete. The amount of space which may thus be bridged over is not stated, but probably it is not very great. These results hold good, not only for the same indi- vidual or another of the same species, but also when the bone is taken from entirely different species. Moisson (" Th^se de Paris," 1892), from a very thor- ough study of the literature of the subject, comes to practically the same conclusions as Adamkiewicz. Both of these authors base their conclusions on studies and experiments connected chiefly with the cranial bones, and so far as those are concerned there is no doubt as to their correctness. The great activity in brain surgery the past few years has furnished large numbers of cases for clinical experimentation in this line. If the disk re- moved be small it may be replaced entire, and in the great majority of cases bony union will result. When the chisel is used, the chips may be strewn over the dura, and they usually adhere and live. Large buttons may be cut up and used in the same way. In case there is too large a defect to be covered by the bone in hand, pieces may be taken from the front of the tibia, or even from animals, with a very fair prospect of success. In some cases, however, the implanted bone is absorbed after a time, and in others it becomes necrosed and has to be removed. Ollier read a paper before the International Medical Congress in Berlin, in 1890 {British Medical Journal, August 16, 1890), giving the results of his very exten- sive experience in this branch of surgery. He divides these operations into three classes, first, the autoplastic, in which the same bone is used to repair some deficiency in itself, and the bone is only partially severed from its connections ; second, the homoplastic, where the graft is taken from the same individual but not from the same bone; and third, the heteroplastic, where the bone is taken from another individual or animal. He says the first and second methods are all but failures, and the third quite so, that is to say, the implanted bone could never grow. He further says it is perfectly hopeless to expect any permanent or complete growth of bone, un- less the periosteum surrounds it. It is, indeed, true that if the parts were aseptic for a time the new bone or im- planted bone, as the case might be, seemed to grow, but this was only for a time. Within six months necrosis takes place and the dead bone if loose, is thrown out, or 96 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Blood-Stains. Bourbonne. it may remain encysted in some instances, and while it may do no harm it is certainly of no advantage to its possessor. Notwithstanding what has been said to the contrary, he says there is no exception to this rule. These statements, coming as they do from such an au- thority as Ollier, carry great weight with them, yet they are at variance with the experience of most surgeons. As regards trephining, as we have seen, the mass of evidence is against them, and aside from these there are a large number of isolated cases of bone transplantation reported which tend to refute at least his final remark that there is no exception to the rule of failure. P. Berger {Gazette des Hopitaux, January 14, 1892), reports a case where be successfully covered the defect due to spina bifida by a piece of bone taken from the shoulder-blade of a young rabbit. Almost every surgeon has had one or more suc- cessful results from re-attaching ends of digits entirely severed. For the purpose of replacing the loss of the nasal bones or cartilages, transplantation of animal bone is sometimes successful. I have under observation now one case where two years ago I elevated the nasal bridge by the introduc- tion of four cat-ribs under the skin. Thus far the bridge is solid and firm, and has not sunk in. In another case where there was a sinking in from loss of the alar cartilages, a perfect elevation was procured by splitting the alae and introducing flat pieces of bone taken from the front of the tibia. In a third case, to obtain the desired result, part of the shoulder-blade of a cat was used. All of these operations were done over a year ago, and the bone is still retained an4 is firm and solid, and there is no irritation. In only one case have I had to re- move the transplanted bones. Necrosis in this case was, I think, due to the pieces being kept in a 1 to 1,000 bichloride of mercury solution by mistake. However, even then it was found that at the ends they were so firmly united as to require considerable force to extract them. That the bone was living and healthy at the ends, was shown by the shreds of living tissue adhering to them, and by the healthy pink color of the transverse section. A very interesting experiment is reported by Phelps (New York Medical Record, February 21, 1891). In or- der to repair an ununited fracture of the leg of a boy, he inserted a portion of the leg bone of a dog, which was kept in connection with the animal until union had taken place. There was primary union of the soft parts, but unfortunately he was obliged to sever the graft on the eleventh day, owing to its becoming loosened from the muscular twitching. There was free oozing of blood from the cut surfaces, showing that circulation had be- come established between the patient and the dog. At the end of five weeks, no union having taken place, the graft was removed. It showed on its surface new formation of bone, and the medullary cavity was par- tially filled with new bone. The operation was a failure, and yet it seems as if more extended experiments in the same direction might lead to useful results. In conclusion, it may be said that while, with few ex- ceptions, the results obtained by bone transplantation are by no means satisfactory, yet they are such as to en- courage a more extended trial. The most rigid asepsis rather than antisepsis should be employed in all these operations. The pieces of bone should be as small as will serve the purpose, several small pieces doing better than one large one, and where it is possible bony con- tact should be secured. If it be impracticable to replace or transplant the pieces immediately, they should be kept in a warm sterilized salt solution rather than in antiseptic fluids. It is only by the most careful attention to all the de- tails that a successful result can be secured. William Barnes. BORMIO. An ancient thermal station in the upper Valtellina district of Lombardy, Italy, now chiefly pat- ronized as a climatic resort. Location.-Bormio is situated near the river Adda, surrounded by massive rocks and precipices, and some- thing like 4,000 feet above the level of the sea. The thermal waters are indifferent gypsum springs, and have been described by Pliny. The season is a short one, being restricted to the months of July and August, although the climate of Bormio is possibly a trifle more equable and mild than that of the Engadine, near which the place is situated. There is a barren and sombre look to the landscape at Bormio, but the village leads to some points where grand mountain views may be enjoyed. Access.-By railroad as far as Botzen, then on through Meran, and over the Stelvio Pass ; or by way of Como, and up the valley of the Adda ; or through Coire, and then by " diligence" up the mountains. Analysis.-There are eight springs, issuing from the calcareous precipices, near the foot of the Monte Brauglio. There is an abundance of water, something like 300 gallons a minute. The springs are hot, up to 120° F. Analysis of the San Martino Spring at Bormio.- Ten thousand parts of water contain : Parts. Chloride of sodium 5.112 Sulphate of sodium 0.604 Sulphate of potassium 0.181 Sulphate of magnesium 2 520 Sulphate of lime 4.863 Carbonate of lime 1.735 Carbonate ol iron (>.025 Carbonate of manganese 0.014 Silicic acid 0.207 Total solids 10.261 Carbonic acid gas 0.474 Indications.-Gout, rheumatism, cutaneous affections, hepatic and splenic disorders, hysteria, and scrofula are the principal diseases treated at this mountain resort. Accommodation.-The old thermal establishment Bagni di San Martino is rather primitive, but the new building, lower down and near the village, is a modern in- stitution, where all the appliances for inhalations, massage, hydro-therapy, gymnastics, etc., are found. Milk- and whey-cures. Terms moderate. The old road over the Stelvio Pass into the Tyrol passes through Bormio. Edmund C. Wendt. BOULOGNE-SUR-MER. A French sea-side resort, largely frequented by the English. Location.-Boulogne-sur-Mer is a fortified seaport of the Department Pas de Calais. It is on the shore of the English Channel, at the mouth of the river Lianne. It consists of two parts, the Old Town, located on the hill, and the New Town, along the water. Daily communica- tion by steamboat with England, vid Folkestone. The beach is fine. The town is a fishing centre, and is dirty but interesting. There is also a chalybeate spring not much used. Bathing is on the French system. The town is half English. Accommodation.-Several good hotels, and a vast number of poor ones. There is a Casino, where plenty of gambling goes on. Also a theatre, concert-halls, etc. It is no longer a fashionable resort, being mostly frequented by the middle classes. It is a favorite place for excur- sions from England, and resembles our own Coney Island in many respects. Edmund C. Wendt. BOURBONNE-LES-BAINS. A watering-place in the Department of Haute Marne, France, the Aquae Bor- monis of the ancients. Location.-Bourbonne is an attractive little place, surrounded by hills and mountain spurs of the Jura formation. Mr. Wolff says of it, in his interesting work on the Vosges watering-places : " As in its geological position, so of course in the character of its waters does Bourbonne differ very materially from the other ' Wa- tering-places of the Vosges.' Its springs are strongly mineralized, containing over seven grammes per litre of solid matter, and very hot-much hotter than anyone could bear their application. People who have accident- ally dropped into this water, in which an egg is thoroughly boiled in fourteen minutes, are reported to have become in a few minutes so thoroughly flayed as to bring on death. Of the medicinal effects of the waters there has 97 Bourbonne Brain. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) never been any doubt. It seems a veritable bank of Bethesda. Along it hobble and limp, and are wheeled and carried, halt, lame, and cripples, people bent double with rheumatism, palsied with paralysis, misshapen with deformity-scrofulous, pale, and delicate children. Bath- chairs and crutches and sticks appear to be the rule rather than the exception." Bourbonne is 850 feet above sea-level. Its climate is not equable and rather relaxing. Dr. Macpherson has called it the French Wiesbaden. Dr. Yeo says life is simple and cheap there. The French State maintains a thermal establishment here, chiefly used by military invalids. Few foreigners make use of the baths, although the place is attracting more attention now than formerly. Access.-From Paris there are through trains in seven hours. From other places the local branch line and omnibuses are used, but are inconvenient. Analysis.-In 1,000 parts : General Analysis. Silica. 0.0604 Carbonate of lime 0.0751 Carbonate of magnesia ; 0.0035 Carbonates of iron and manganese 0.0038 Fluoride of calcium traces Sulphate of lime 1.3550 Chloride of calcium 0.1340 Chloride of magnesium 0.0483 Chloride of lithium 0.0826 Chloride of sodium 5.2034 Chloride of potassium, rubidium, and caesium 0 1925 Brontide of sodium 0.0671 Iodine, arsenic, and ammonia ; traces Total of solids 7.2257 Free carbonic acid ,. 0.0097 Carbonic acid in combination 0.0726 Temperature 122° to 149° Fahrenheit. Source Puisard Romain. Carbonic acid (free) 0.0703 Carbonic acid (in combination) 0.0263 Silica 0.0748 Carbonate of lime 0.0743 Carbonate of magnesia 0.0032 Carbonates of iron and manganese 0.0023 Fluoride of calcium traces Sulphate of lime 1.3980 Chloride of calcium. 0.0785 Chloride of magnesium 0.0538 Chloride of lithium 0.0887 Chloride of sodium 5.2020 Chloride of potassium, rubidium, and caesium 0.1992 Bromide of sodium 0.0644 Iodine, arsenic, and ammonia traces Total 7.3358 Temperature 149° Fahrenheit. Indications.-The waters being hot bromo-iodurated saline ones are useful in rheumatism, scrofula, paralysis, engorgement of abdominal viscera, and certain forms of neuralgia. Dr. Macpherson holds them to be curative in rebellious malarial fevers. Mr. Wolff says that bathing combined with douches, and often electricity, forms the basis of treatment. Massage is not held in excessive esti- mation, and the local doctors consider that their douches de haute pression-for which the water is pumped up to a height of 54 feet-are fully equal in effect to any rub- bing and shampooing. Electricity, is however, much resorted to, especially in the Military Baths-which form an entirely distinct establishment, locally separated from the general Thermes-where, in the officers' annex, model appliances for its use may be seen. Of their douches the Bourbonne people are exceedingly proud, and they em- ploy them in every form, from the finely divided pulveri- sation up to the heavy jet which, one would think, would have sufficient force almost to knock a man down. Drinking is not prescribed for everyone, and rarely ex- ceeds a daily dose of two or three tumblers. A course of treatment at Bourbonne lasts from three to four weeks. Accommodation.-The Hotel des Bains is a good hotel. The bathing establishments are fitted up with the usual requirements. There are luxurious private baths and cheap general baths. There are amusements in modera- tion, but the place is not in any sense a fashionable spa ; real invalids intent on being made well are its chief visitors. There is a typical French Casino, adjoining the Civilian Thermal Establishment. Numerous French officers and soldiers enliven the scene by their pretty uniforms. Edmund C. Wendt. BOURBOULE (La). One of the most important spas in France, although less frequented than the more neu- tral but fashionable resorts. The springs are strongly arsenical. Location.-La Bourboule is in the Department of Puy de Dome, in one of the prettiest regions of Au- vergne. The district is very mountainous and the village is situated about 2,700 feet above the level of the sea. It is only five miles from Mont Dore ; it is less shut in than that resort. The hills in the immediate vicinity are of comparatively gentle slope. The mountain climate is on the whole mild, though rather changeable. The springs furnish hot arsenical waters. Access.-From Paris, on the Paris, Lyons & Medi- terranean Railroad, vid Clermont, to Laqueille ; thence, in an hour and a half, by carriage to Bourboule. Analysis.-One litre of the water contains : Grammes. Arseniate of soda 0.0284 Chloride of sodium 2.8406 Chloride of potassium 0.1623 Chloride of lithium traces Chloride of magnesium 0.0320 Bicarbonate of soda 2.8920 Bicarbonate of lime 0.1$K>5 Sulphate of soda 0.2084 Peroxide of iron 0.0021 Oxide of manganese traces Silica 0.1200 Ahiminia traces Organic matter traces Carbonic acid (free) 0.0518 Indications.-La Bourboule has a wide range of ap- plicability and enjoys a growing reputation, probably in part due to an energetic and intelligent management. The springs are now controlled by a stock company. Dr. Yeo states that the waters may be taken with ad- vantage in the following conditions : 1. In anaemic and chlorotic girls and weakly chil- dren with scrofulous tendencies, or who are convalescing slowly from surgical operations, especially when under- taken in connection with scrofulous diseases of the bones or other organs, and particularly in those cases in which the preparations of iron prove inefficacious or unsuitable. 2. In herpetic eruptions of the skin and in eczema and psoriasis. 3. In affections of the throat and respiratory passages, especially when found associated with a tendency to cutaneous eruption. In granular pharyngitis, chronic laryngitis, and asthma. In slow forms of chronic phthi- sis. associated with a tendency to glandular affections ; but it is not to be recommended in cases with a tendency to haemoptysis or to troublesome dyspepsia. 4. In certain forms of intermittent fever which resist the ordinary forms of treatment. 5. In chronic rheumatism, especially in those very troublesome cases known as cases of " arthritis defor- mans." 6. In the gouty dyscrasia when there is no tendency to acute attacks. 7. In diabetes, especially in emaciated subjects in whom the waters of Vichy or Vais have been inefficacious, and particularly if the disease be associated with erup- tions. Accommodation.-There are good hotels and private lodgings. Besides the large Etablissement des Thermes, used by the better class of patients, there are three other bathing establishments, thoroughly well fitted up and ably managed. They offer all the appliances of modern times, such as single, sitz-baths, general baths, steam-baths, inhalation and spray rooms, douches of every description, burettes, etc. All the springs are hot, the Perriere spring having a 98 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Hourbon ne. Brain. temperature of about 125° F. There is a good Casino, and the ordinary amusements of French spas. Season, June to October. Edmund C. Wendt. BOW-LEGS. The simplest and most effective brace for the correction of those cases of bow-legs in which the bones may still be bent, con- sists of a strip of flat bar-iron along the concavity of the curve, an inch longer than the distance from the garter-line to the sole of the shoe. The lower end is forged round, bent at a right angle, and passed into a hole, or a tube, in the heel of the shoe. At the garter-line a pad- ded band is riveted, reaching two-thirds around the leg, and just above the malleoli a like band is attached. The splint applied, the leg is firmly band- aged to the bar. When the deformity has been corrected a broad leather strap may be used in place of the bandage. In cases where the deformity is due in a measure to the laxity of the ex- ternal ligaments of the knee-joint the brace is carried above the knee, and a posterior bar is added, as in the splint for knock-knee. John Ridlon. BRAIN.* Gross or Macroscopic Anatomy.-§ 1. The primary object of this article is to indicate briefly the principal additions to our knowledge of the subject since the preparation of the article having the same name in Vol. VIII. of the Reference Handbook. But the writer desires first to supply certain omissions in that article, and to correct the errors that have been detected therein. Some of these are obvious and perhaps of no great importance, but others are serious and due to the writer's imperfect observation or interpretation of speci- mens at that time.f § 2. Fig. 4684.-A. Many of the boundary lines are too faintly indicated, e.g., that of the section of the chiasma. A continuous line representing the pia should have surrounded all the cut surfaces in close contact there- with. Another line representing the arachnoid should follow the general contours, as stated more fully in con- nection with Fig. 4711. B. The segmental name, diencephal, hides most of the oval area indicating the medicommissure ; this last should have been named and should not be dotted ; although it may contain some fibres it consists mostly of cells. C. The heavy black line representing the endyma should extend farther into the stem (infundibulum) of the hypophysis, as in Fig. 4711. At the second e of the abbreviation mesen the endymal line should not be interrupted. The interruption opposite the n of the abbreviation meten represents the metapore (Foramen of Magendie), and should have been so designated as in Fig. 4711. § 3. Fig. 4689.-A. On the right (left of the figure) the words torus and Iura should be transposed. The former is the mononymic substitute for tuber cinereum, the elevation ; the latter designates the orifice, foramen infundibuli, left by the removal of the hypophysis. B. On the opposite side from the word preoperculum a line should extend to the brain parallel with the line from olfactory crus. C. The two crura should be equal in width. D. The word vallecula should be vallicula, although the former is commonly used. § 4. Fig. 4698.-On the left the numbers 4 and 5 should be transposed. § 5. Fig. 4702.-In the upper figure the endymal line should be continuous in the roof of the mesocoele. § 6. Fig. 4703.-The area surrounded by the dotted circle should be marked 2 instead of 1. Since it repre- sents the medicommissure, a bar crossing the diacoele (Fig. 4727), it might well have been left blank in this figure of the cast. In the description, near the middle, top should be tip. § 7. Fig. 4711.-In the description, first line, 8 should be .8 ; second line, for subfalcial, read falcial; fourth line, for falcicula, readfalcula. § 8. Fig. 4715.-A. Near the tip of the temporal lobe, just under the end of the line from postoperculum, there is really an independent triradiate fissure, consisting of a stem directed toward the tip of the lobe, with branches extending respectively dorso-caudad and ventro-caudad. The intermediate branch, a continuation of the stem from the place of radiation into the tip of the supertemporal fissure, should be erased. B. This will leave the supertemporal fissure with a long spur extending caudad and slightly ventrad ; the shorter, darker portion of this spur represents a true branch of the fissure ; the longer, fainter part represents an artificial crack and should be erased. C. The ventral end of the exoccipital fissure presents a branch extending cephalad and another (12) extending ventrad and slightly caudad. At the point of divergence enters the fissure marked 13 ; the junction of this latter is not deep, as appears, but shallow. D. Just dorsad of the insula is an apparently simple junction of the subfrontal fissure with the precentral. Really there is a branch from each fissure, and they overlap slightly midway, the subfrontal branch being dorsad ; there is thus a narrow isthmus, as in Fig. 4777, between the branches of the central and precentral fissures. E. In the explanation, after 14, the word presylvian shopld be subsylvian.* § 9. Fig. 4728.-At the end of the lowest line, indicat- ing the most dorsal portion of the inverted region, should be the word postyeminum. § 10. Fig. 4729.-Proplexus should be paraplexus, and liypocampa, hippocamp. § 11. Fig. 4731.-The line A, B, C, should have been merely dotted to indicate the planes of section on Fig. 4730. § 12. Fig. 4740.-In the explanation, eighth line, for precornu read paracoele. § 13. Fig. 4742.-A. In the explanation, fourth line, for precornual read lateral or paraccelian. B. In view of the claims of some that natural outlets exist from the paracoele into a subarachnoid space (§ 55, T), perhaps the word presumably should be inserted before artificial. § 14. Fig. 4746.-Compare Fig. 51 and the accom- panying commentaries. § 15. Fig. 4748.-At the upper left-hand corner, fossi should fossa. § 16. Fig. 4750.-At the left, second name from the top, for endyma read paratela. See § 53. § 17. Fig. 4751.-A. From the word medicommissure a line should reach the light strip just ventrad of the diacoele. B. Near the tip of the lower line from B the outline of the thalamus is defective. C. Between the left paraplexus and the tenia the membranous floor of the paracoele is the paratela. § 18. Fig. 4760.-On the temporal lobe, just dorsad of the pons, the apparent fissure is an artificial crack. § 19. Fig. 4767.-A. The short, vertical fissure be- tween the word operculum and the number 1 is merely a notch or superficial branch of the presylvian fissure, the main portion of which lies ventrad of 2 ; hence the Tig. 54.-The Thomas Bow- leg Brace. * Exclusive of the Membranes of the Brain, which are treated of in a separate article under the title Meninges. + The writer ventures to advise that the changes and corrections indicated be marked in the text or upon the illustrations. A suggestion as to the desirability of prompt or periodical self correction is offered in his paper, The Morphological Importance of the Membranous or other Thin Parietes of the Encephalic Cavities, Jour, of Comp. Neurol- ogy. i., p. 201. * Fig. 4723, the word crus should be prepcduucle. 99 Brain. Brain. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. triangular area (1) is part of the operculum. The pre- operculum is (2) and the subsylvian fissure is probably represented by a short indentation, visible only when the postoperculum (3) is removed. From the name presyl- vian f. a line should reach the dark space dorsad of (2). In this connection it may be added that corresponding changes should be made in § 208, D, § 234, E, and § 241, L. 8 20. Fig. 4778.-The two fissures named presylvian and subsylvian are probably to be regarded as branches of the former, and the latter is represented by a short one concealed, as in Fig. 4767, by the overlapping post- operculum. The number of the specimen should be 318. § 21. Fig. 4779.-As in Figs. 4767 and 4778, the presylvian is to be regarded as having a dorsal branch ; the true subsylvian as concealed. § 22. Fig. 4784.-The fissure named supercallosal is the paracentral ; here, as often, the two are continuous. § 23. The following verbal changes should be made in the same article : A. In § 80, vallecula should be vallicula ; after it should be added Figs. 4689 and 4716. B. In § 82, C, typical should perhaps be simple ; sel- dom, in adult brains, has the writer observed the con- ditions represented in Fig. 4715. C. In § 218, the interparietal fissure of Ecker was first called by Turner intraparietal, and this name should be used unless, as held by the writer, it is admitted to consist of two integers, the parietal and the paroccipital. § 24. Subfrontal Gyre.-By an inexcusable oversight the more common name of this functionally important region, viz., Broca's gyrus, is not given ; but it is employed in other articles, viz., II., 34, and VIII., 206. Since the article was prepared there has appeared Herve's mono- graph, "La Circonvolution de Broca," Paris, 1888. § 25. Encephalic Variations.-In § 63 mention should have been made of the brief account of anomalies of the brain in Krause's " Anatomie," pp. 192-195. § 26. Order of Treatment.-This will follow the series of definitive encephalic segments from the myel (spinal cord) cephalad. I. General matters of nomenclature and structure ; § 27-29. II. Metencephal (postoblongata and caudal part of "fourth ventricle"). For convenience the metapore (foramen of Magendie) will be considered in the article Meninges. III. Epencephal (cerebellum, pons, and preoblongata). The cerebellar ectocinerea (cortex) and entocinerea (den- tatum ami tectal " nuclei") ; §§ 30-38. IV. Mesencephal (crura and gemina or optic lobes). V. Diencephal (thalami, etc.).* The medicommissure, conarium, paraphysis, and mesal eye ; §8 39-41. VI. Prosencephal (cerebrum and olfactory lobes). Bhinocoele or olfactory ventricle, § 42 ; fornix, § 44 ; hippocamp, § 45; pseudocoele (fifth ventricle), § 46 ; in- dusium of the callosum, § 47 ; incallosal brains, § 48; relations of thalamus to paracoele (lateral ventricle) in the sheep, etc., § 49 ; in apes, § 52 ; in man, §§ 53-55 ; transitory fissures, §§ 56-59 ; permanent fissures, §§ 60- 78 ; brain weight, § 79. VII. Bibliography. § 27. Neuraxis or neuron.-It has now become a serious question which of these short mononyms shall be employed as a substitute for cerebrospinal axis, my- elencephalon, etc. Neuron was proposed by the writer in 1884 (Neio York Medical Journal, August 2, p. 114), and employed in 1885 in addresses before the American Neu- rological Association (as president), " Paronymy versus Heteronymy as Neuronymic Principles," and before the Biological Section of tile American Association for the Advancement of Science (as vice-president,) "Educa- tional Museums of Vertebrates also in the second edi- tion of " Anatomical Technology." It has been adopted in this sense by Minot, "Embryology," 1892, by Waters (Zool. Anzeiger, 1891, p. 362), and others. (SUPPLEMENT.) But, on discovering in the "Diet, de Medecine " of Littre and Robin (1877) that neuraxe had been used (by whom not stated) in the same sense, the writer aban- doned neuron in favor of neuraxis, the presumed Latin antecedent of the French neuraxe, and used neuraxis in the articles in the Handbook. It likewise has been adopted by several writers. Furthermore, neuron has been taken by Waldeyer {Berliner klin. Wochensehr., July 13, 1891) to represent a " nerve-entity," consisting of : (g) a nerve-cell; (b) the nerve-process ; (c) its collat- erals ; (d) the end branching ; " see the abstract by Alex- ander Hill in Brain, vol. xiv., p. 569. In this sense also it is used by C. L. Herrick, Jour. Comp. Neurol., ii., 137, December, 1892.* The writer has no prejudice, and trusts the matter Fig. 55.-The Central Part of the Cerebellum near the Dorsal End of Its Cavity, the Epicoele. From Stilling, Fig. 57a ; X 8. This represents a part of themesal aspect of the right half of a medi- sected cerebellum. The entire surface is shown on a smaller scale and without histological differentiation in Vol. VIII., Figs. 4684, 4711, 4718, 4719. In the last the organ is represented approximately erect, i.e., extending dorsad from the oblongata ; in the present figure, as in the other three, it is in the natural attitude, tilted caudad, so that the apex of the epicoele looks caudad rather than dorsad. 1. Pia dipping into the rimulas between the foliums : 2, ectal fibro- cellular layer of the cortex, neuroglia, etc. ; 3, layer of the cells of Purkinje ; 4, granular layer ; 5. fibrous centre, the alba or medulla ; 6. 9, cephalic (anterior) decussating commissure; 7, deep rimula be- tween lobes of the postvermis; 8, cephalic (anterior) branch of the arbor (vitae) ; 10, layer designated by Stilling as composed of ''guir- landenformigen Fasern ; " 11, caudal (posterior) branch of the arbor. may be considered by some of the committees on nomen- clature for an authoritative recommendation as to usage. It will probably occur to others that neuron is a more * After this article was completed there reached the writer three im- portant papers by His in the Archiv fur Anat. u. Physiol., Anat. Abth., 1892, v. u. vi. Heft., viz., Zur Nomenclatur des Gehirns und Riicken- markes. pp. 425-428; Die Entwickelung der Menschlichen und thier- ischer Physiognomien, pp. 384-424 ; Zur allgemeinen Morphologic des Ge- hirns, pp. 346-383. The last is profusely illustrated with representations of embryonic brains, mostly of animals. On the first page is a list of terms employed (in gratifying conformity to the suggestion made by the writer in Vol. VIII., p. 528, § 72). The summary is as follows: " 1. Die allgemeine Morphologie des Gehirns eine notwendige Grund- lage fiir die Deutung der Faserbahnen bilden muss. " 2. Eine solche allgemeine Morpholoeie nur dann endgiiltig zu gewinnen ist wenn wir auf die allerersten Bntwickelnngsstufen zuriiek- greifen. Nur von dieser ersten A nfangsstufe aus lasst sich der Bau sicher auffiihren, dadurch dass wir die friihesten topographischen Beziehungen der einzelnen Abschnitte des Markrohres zu einander genan feststellen und dann an der Hand dieser Merkmale die Verwickelung der Formen verfolgen." * Respecting thalamcncephalon and analogous terms, see Vol. VIII., p. 529, § 74, note. 100 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Brain. Brain. natural associate of axon and enteron, and that it is the legitimate substantive of the adjective neural; also that neuraxis might very appropriately designate the axis cylinder of a nerve-fibre. Perhaps, however, as with cilium (either an eyelash or a microscopic filament), the two uses are not incompatible. § 28. Is there a Rhinencephalic Segment ? - The ad- dress by Professor William Turner before the Anatomi- cal Section of the Tenth International Medical Congress, at Berlin, in 1890 (Jour. Anat, and Physiol., xxv., pp. 1-53, with 42 figures), is not merely a valuable and suggestive study in the comparative anatomy of " The Convolutions of the Brain," but also is based upon a rec- ognition of the significance of the fundamental and uni- versal separation of the pallium, or strictly cerebral portion of the prosen- cephal, by a rhinal fissure from the olfactory bulb, crus, and hippocampal lobe, which he includes under the name Rhinencephalon. As may be seen from Vol. VIII. (p. 112, § 15, A ; p. 134, § 122), the writer sympathizes with this recognition of the morphological consequence of the olfactory nervous apparatus ; but he deprecates the employment of a seg- mental term like rhinencephalon in what is now a third sense. Owen used it for the olfactory bulbs, actually united only in tailless amphibia; the writer (at one time adopting this view) has suggested (Vol. VIII., p. 114, note) that perhaps the bulbs, their crura, the olfactory portion of the pre- commissure, and a part of the aula, might be recognized as constituting a sixth definitive segment ; but-unless the word encephalon in composition is to be shorn altogether of segmental sig- nificance-it should no more be used for a ventral portion of a region than for a dorsal portion, e.g., the cere- bellum, without the supporting preob- longata. * § 29. The Endymal Cilia.-In Vol. VIII., p. 118, § 43, in stating the sim- plest expression of an encephalic seg- ment, the constant ental constituent of the parietes, the endyma (ependyma of some writers), was mentioned as a cili- ated epithelium. There is considerable divergence of statement among authors as to the presence of cilia, especially in adults. P. A. Fish has described (Amer. Monthly Micros. Jour., xi., p. 256, November, 1890) the ciliated cells in the encephalic cavities of the cat, both old and young. He urges the importance of thorough preservation by the injection of the preservative into the cavities ; states that a mag- nification of not less than six hundred diameters must be employed, and intimates that the failure to recognize them in man may be due to defective methods of prepa- ration or examination. § 30. The Cerebellar Cortex.-In none of the medisected brains represented in Vol. VIII. (Figs. 4684, 4711, 4718, 4719) was any effort made to show the thickness or con- stitution of the cortex of the cerebellar foliums ; this omission is in a measure supplied by the accompanying figure (55) from the magnificent work of B. Stilling, " Neue Untersuchungen uber den Bau des kleinen Ge- hirns des Menschen," etc. Q., pp. 357 and Ixxviii. ; Folio Atlas of 21 plates. Cassel, 1878. S 31. Points illustrated by Fig. 55.-A. The trian- gular form of the apex of the epicoele, whence the term fastigium (a gable), applied to its immediate roof. B. The absence of a layer of cinerea (entocinerea) im- mediately ectad of the endyma. C. The non-appearance, upon an accurate medisection, of any of the disconnected masses of cinerea represented in Figs. 56, 57, 58. D. The irregularly trapezoidal outlines of the medulla (alba) forming the central cone about the apex of the epi- coele. -geminum. semicircular fibres. epicoele. nod ulus. postpeduncle. ■ globuli. cinerea of the dentatum. fibres of the dentatum. rimula. vallicula. Fig, 56.-The Dentatums and Prepeduncles. From Stilling, Fig. 99, somewhat modified : X 2 -. Preparation.-The plane of section was oblique, so as to coincide with the general direction of the prepeduncles as shown in Vol. VIII., Figs. 4721, 4722. Defects.-By an inexcusable oversight the prepeduncles are not indicated by a line and the name; but they are readily recognized as the fibrous tracts at the sides of the epicoele, converg- ing from the dentatums to the geminum. There is no representation of the "fleece," the layer of fibres radiating from the ectal surface of the dentatum; see Edinger's "Twelve Lectures," etc., Fig. 85. E. The extension of the medulla as branches, whence the more comprehensive name arbor (vitae) applied to the entire cerebellar alba. F. The constitution of the cortex by several layers ; for their microscopic structure see treatises on the sub- ject. § 32. The Cerebellar Entocinerea.-In Vol. VIII., p. 128, § 92, brief mention is made of four pairs of masses of cinerea (gray tissue) in the central part of the cerebellum, near the apex of the epiccele ; but through a misappre- hension they were neither figured nor described in detail. They are commonly referred to as roof-nuclei, or tectal nuclei. § 33. The Dentatum.-This is the largest and most easily recognized of the four masses ; see Figs. 56, 57, 58. It has the form of a corrugated capsule, open meso- ventro-cephalad. for the reception of the fibres of the prepeduncle (Fig. 56). In any cerebellum, whether * In this connection it may be added that the word neuromere, intro- duced by the writer (V. Y. Med. Jour., 1885, p. 356. and " Anat. Technol- ogy," 2d ed., 1886, p. 400d) as a mononym for definitive neural (or en- cephalic) segment, was adopted in 1887 by Orr (Jour. of Morphology, I., p. 335) in the sense of potential segment, and this application was ac- cepted by the writer in 1889 (Handbook, VIII., 113, § 23) ; in this sense it is also employed by Minot ("Embryology," pp. 604-606) and other embryologists. 101 Brain. Brain. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) fresh, or hardened in chromic acid compounds, or even alcohol, it is readily recognized upon transections or upon sagittal sections begun about one centimetre either side of the meson and continued laterad for two or three centimetres.* The dentatum has received the following- additional names, of which the last only is used with any frequency : Nucleus dentatus ; corpus denticulatum, s. fimbriatum, s. lenticulatum, s. ciliare; Eng., ciliary body. § 34. The Fastigatum.-This, more often called " fas- tigial nucleus," is close to the meson, directly in the roof (fastigium) of the epiccele; Figs. 57, 58. It is rounded cephalad, but the caudal end presents two or three pro- jections. § 35. The Embolus and Globulus.-These smaller masses of cinerea lie between the dentatum and the fastigium, and somewhat dorsad of the latter. Their forms are in- dicated by their names, and are well shown in Stilling's figures as reproduced in Figs. 57 and 58. More common (and cumbersome) titles are Nucleus globosus or gldbuli- formis, and Nucleus emboliformis. § 36. Points illustrated by Fig. 56.-A. The constitu- tion of the dentatum as a corrugated capsule of cinerea, open cephalo-ventrad. B. The entrance of the fibres of the prepeduncle B. The lack of precise symmetry in the forms of these masses; of one set, the globuli, there are three on the left and two on the right, the more cephalic, perhaps, representing the fusion of two. C. The form of the dentatum as a corrugated capsule with an opening or hilum toward the meson; this is shown better in the following figure. - monticulus. pi a. -rimula. .. medulla. ^globulus. -embolus. -dentatuin. ^fastigatum. -prepeduncle. -1 .lateral recess. ■geminum. -prepeduncle. ■medipeduncle. ■oliva. -rhaphe. - lingula. - commissure. - embolus. Fig. 58.-Transection of the Cerebellum and Oblongata. From Stilling, Fig. 84 ; modified somewhat ; X 2 - . Preparation.-The section is stated by Stilling to cut the higher part of the monticulus (see Vol. VIII., Figs. 4716-4719). It evidently passed caudad of the pons and right medipeduncle, cutting the left obliquely, the lateral recess being opened on the right. This lack of symmetry is not, perhaps, a serious defect. -globulus. - fastigatum. - dentatum. § 38. Points illustrated by Fig. 58.-A. The relative positions of the cinereal masses in the epiccelian roof, as seen in transection ; compare the view presented in Fig. 57. B. The relative positions of the prepeduncle and medi- peduncle; see Vol. VIII., Figs. 4721, 4722. C. The resemblance of the dentatum of the cerebellum to the corrugated capsule in the oliva, which is some- times called dentatum oliva. D. The distinctness of the rhaphe or mesal seam of the oblongata. § 39. Medi commissure (middle or gray commissure).- According to Wenzel, as stated in Vol. VIII., p. 132, § 113, this secondary junction of the thalami is absent once in six or seven individuals. With five exceptions all of the adult and late foetal brains in the museum of Cornell University have been either medisected or so pre- pared as to exhibit the location of the medicommissure ; out of the whole number (98) the commissure is absent in only one, a male child at term. The writer ventures to suggest that some of the re- ported cases may have been based upon inadequate evi- dence. Unless the brain is medisected while fresh, or prepared by the injection of a preservative into the ar- teries or the cavities, or both, the medicommissure com- monly fails to be reached ; its peculiar softness causes it to break easily ; and the imperfect preservation of the adjacent thalamic surfaces might lead to the non-recog- nition of the slight elevation indicating its existence. If the specimen is allowed to dry slightly, and is then held so that the light is reflected from the smooth endy- mal surface of the thalamus, then the presence of the remnant of the commissure will be indicated by the ab- sence of such reflection from an area corresponding with its usual location. There is no other part of the brain where an error of observation is more likely to occur. § 40. Conanum.-The development of this (epiphysis postvermis. vallicula. Fig. 57.-The Dentatum and other Masses of Cinerea in the Central Part of the Cerebellum. From Stilling, Fig. 98, somewhat modified ; X 2 -. Preparation.-This is commonly designated as a " horizontal " section. Really, the plane cannot be indicated in such simple terms. The central part of the figure, including the cinereal masses, is through the fastigium, the roof of the apex of the epiccele. Cephalad are parts of the lingula, the prepeduncles, and the mesencephal; can- dad the foliums of the postvermis, the mesal vallicula, and parts of the lateral lobes. Defects.-No attempt has been made to represent the fibrous con- stitution beyond the purely diagrammatic indication of the cephalic (anterior) decussating commissure. through the hilum of the dentatum to connect with its cells. § 37. Points illustrated by Fig. 57.-A. The exist- ence, near the apex of the epiccele, of four pair of cinereal masses, representing, perhaps, dislocated portions of the cerebellar entocinerea. * Here and in the writer's other articles the occurrence of the termi- nation re in words like metre, fibre, centre, etc., is in conformity with the rule adopted for the entire work; he regards it as distinctively French; see Vol. VIII., p. 527, § 06, I. 102 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Brain. Brain. or pineal body) in various vertebrates has been studied by Heckscher of Copenhagen ; the literature of the subject is also fully presented by him. § 41. The Paraphysis.-Under this name (and Stirn- organ) Seienka has described {Biol. Gentralblatt, vol. x., 323-326, 1890) a second mesal appendage of the brain just cephalad of the conarium. It has been observed also by C. Hill. An abstract respecting it is given by Minot ("Embryology,'' p. 690). § 41. The mesal (parietal or conarial) eye has been recently considered at some length by Beraneck, under the title, " Sur le nerf parietal et la morphologic du troisieme ceil des vertebres," Anat. Anzeiger, Oct., 1892, 674-689. § 42. The Rhinocoele.-The persistence of the cavity of the olfactory crus and bulb in other forms than man (and perhaps apes) was mentioned in Vol. VIII., p. 137, § 122. In a paper, " The Partial Occlusion of the Olfac- tory Lobe in the Canidae '' {Amer. Monthly Micros. Jour., 5. Atrophy is not a necessary concomitant of occlusion. 6. Domestication, and the consequent disuse of olfac- tion as a means for procuring sustenance, may be a factor in promoting occlusion. 7. In the classifications of Broca and Turner the dog seems to hold an anomalous position, in that he gives every external evidence of macrosmatic power ; but by the almost total occlusion of his rhinocoele he approaches structurally the conditions found in the microsmatics. Physiologically he is macrosmatic ; morphologically he is microsmatic. § 43. Points illustrated by Fig. 59.-A. The general similarity to the corresponding aspect of the human brain as shown in Figs. 4684, 4711, 4718, and 4719. B. The slighter encephalic flexure. C. The smaller relative size of the cerebrum, permit- ting the cerebellum and even the olfactory bulbs to ap- pear in a dorsal view of the organ. D. The possibility of transecting each segment, except- ing the diencephal, without cutting other segments. E. The large size of the medicommis- sure. IcOMNUS- \pURC [pR ZQCMIH U M / [gekcbeYlum pPd S TGLJ^l NUM '■Zpicoclc DIACOCLD .CRURA A/terArc: la mctacoczj: Fig. 59.-Mesal Aspect of Right Half of Sheep's Brain ; X 2- From the writer's " Physiology Practicums," Fig. 25. . . This figure is semi-schematic, certain albicans details being omitted for the sake of clearness, e.g., the divisions of the cerebellum, the vessels, and the membranes arachnoid and pia. The pia, however, is represented by the line be- tween the rostrum and the crista. \HYPOPHYS1S xii., 49-52, March, 1891), P. A. Fish describes and fig- ures cases of partial obliteration of the terminal, ex- panded portion of the rhinoccele, and complete occlu- sion of the narrower crural part; so far as his observa- tions go, this is true of all domesticated varieties and of the coyote {Ganis latrans) and the Australian wild dog, dingo. In view of the attention given to the subject by Broca and Turner (both of whom have based groupings of mammals upon the known or assumed relative devel- opment of olfaction and its organ), Mr. Fish's conclu- sions are here given with some modification : 1. The facts do not warrant Broca's statement as to the existence of a true ventricular axis (core of solid material in place of the primitive cavity) in the olfactory bulb, even in rat-terriers. 2. The bulb is not completely, but partially occluded, or perhaps in process of becoming entirely so. 3. The cavity of the crus, in some wild forms as well as domestic, is completely closed, thereby cutting off all communication between the paracoele and the cavity of the bulb. 4. The acuteness of the sense of smell is not essentially dependent upon the relative size of the rhinoccele. F. The distinctness of the crista in the adult sheep; Vol. VIII., § 57, N. G. The non-extension of the callosal rostrum, as a copula, to join the terma, as in man and the chimpanzee, and the consequent closure of the narrow pseudocoele by the pia only. H. The absence, as in mammals generally, of small foliums upon the lingula ; see Fig. 4719. I. The absence, as in mammals generally, of a meta- pore (Foramen of Magendie). J. The completeness of the endymal continuity or coelian circumscription. § 44. The Fornix.-This difficult portion of the brain is monographed by Honegger in the Recueil Suisse (zool- ogie), 1890, v., 311-434. § 45. The Hippocamp.-Variations in the form of the hippocamp and the collateral eminence are described by Howden in Journ. Anat, and Physiol., xxiii.,p. 283, Jan- uary, 1888. The hippocamp has been treated by Alex. Hill, in a paper of which an abstract is published in the Royal Society Proceedings, vol. lii., p. 5. § 46. The Pseudocoele.-This cavity (the fifth ventricle, or ventriculus septi pellucidi) has interesting morphologi- 103 Brain. Brain. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) cal and zoological relations; see Vol. VIII., p. 139, § 146, and Figs. 4734, 4735, and 4833. In the adnlt cat, sheep, and most other mammals, the two halves of the septum are in contact, and a pseudo- coele can hardly be recognized. The rostrum of the cal- losum also ends in a point, as shown in Fig. 4698 and Anat., xxxvii., pp. 298-334), the pseudocoele arises as ar indentation or mesal cleft in the proton * of the callosum fornix ; by the extension of the parts this becomes longes and triangular; its sides, the halves of the septum, be come practically portions of the mesal walls of the re spective hemicerebrums, but if his account is correct they cannot be said (as in Vol, VIII., p. 139, § 145) to be prima- rily such. The complete clos- ure cephalad is accomplished by the ventro-caudad extension of the copula so as to reach the terma at about the fifth month. Probably more remains to be done upon this region. § 47. The Indusium.-This term (coupled with the adjec- tive griseuni), is given by Ober Steiner (p. 82) to the thin layei of cinerea upon the dorsal sur face of the callosum. The presence of this continuation ol the cortex upon the callosurr was first noted by Giacomin (Giornale cl. r. Accad. Med. Torino, 1883), and has since been confirmed by Blumenan (Arch.f. Mikros. Anat., xxxvii. 1-15). The indusium is not repre sented by Reichert, and seems not to have attracted the atten tion of Dalton, although some of the beautiful photographs of his transections present faint indications of it. The writes feels compelled to record, wit! some chagrin, that, upon s series of transections of ai: adult brain (1824) hardened ir a mixture of ammonium di- chromate and alcohol, the con tinuity of the cinerea upon the callosum was recognized ir October, 1880 ; notwithstand ing its significance, further ex- amination and publication were deferred. The ridges and lines knowr as stria mediates et latencies are interpreted by Blumenau as as sociated with thickenings of the indusium. It is probable that there is considerable variatior in the thickness of the layer, and that it may not always be complete at the meson. § 48. Incallosal Brains.-A case of total absence of the callosum and fornix is described and figured with un olfactory bulb transected 1 PRECORNU 2 genu hemiseptum PSEUDOCCELE caudatum PARAPLEXUS callosum HIPPOCAMP splemum MEDICORNU 3 paraplexus^ FIMBRIA- hippocamp - 10- Fig. 60.-Sheep's Brain, the Paracceles (Lateral Ventricles) Exposed ; X 2. From the writer's *' Physi- ology Practicums," Fig. 29. Preparation.-By the removal of successive slices the paracceles have been opened ; the left has then been more completely exposed by oblique sections, and the paraplexus trimmed off so as to expose the wide fimbria and the furrow between it and the hippocamp. The plane of section did not coincide ex- actly with the callosum ; the caudal three-fifths of this is represented by the transverse lines ; also the cephalic end, the genu ; but an intermediate portion is wholly removed, exposing the narrow pseu- docoele (" fifth ventricle ") and its thin lateral walls, hemiseptums. Defects.-The cerebral cortex is not represented. The caudal half of the cerebellum is omitted. 1, Intercerebral fissure ; 2. callosal fissure ; 3. vessel; 4, interrupted lines indicating the continuation of the paraccele into the rhinocoele ; 5, precornu ; 6, caput of the caudatum ; 7. Sylvian fissure crossed by arachnoid ; 8, vessel at bottom of fissure; 9, cauda of caudatum ; 10, part of caudal wall of paraccele. this volume, Fig. 59. In man and in a chimpanzee brain prepared by the writer (No. 265 in the Museum of Cor- nell University) the rostrum continues caudo-ventrad to join the terma, and the pseudocoele is therefore com- pletely circumscribed. The earlier conditions in man are less well ascertained ; strictly their consideration does not lie within the scope of this article, but something must be said in qualifica- tion of the account given in Vol. VIII. According to Marchand (" Ueber die Entwickelung des Balkens im menschlichen Gehirn," Archie. fur Mikr. * This neuter noun is employed to designate the primitive, undifferen- tiated mass or rudiment of a part, thus in the sense of Anlage of the German embryologists (as adopted by Minot and others), and of funda- ment, as proposed by Mark (''Comparative Embryology"). It avoids cer- tain obvious objections to those terms as English words, and is in har- mony with the following phrases from Aristotle, kindly quoted by Pro- fessor B. I. Wheeler: to npwrov ; i) ttpwtt; ; r, irpurrq atria. (Fig. 61.)-1. Cut surface, extending meso-ventro-cephalad ; 2, cut surface of the genu, the cephalic curvature of the callosum : part of its natu- ral, pial surface lies just cephalad ; the transverse lines on the areas 2 and 9 are introduced merely to indicate the direction of the callosal fibres, not as representations of microscopic structure; 3, point of disappearance of the pin as a result of cutting away part of the lateral convexity of the cerebrum ; 4. meeting-place of the two oblique cut surfaces caused by the exposure of the medicornu ; 5, point of reappearance of the pia, which was interrupted at 3; 6, is an area just caudad of the left calcarine fissure ; 7, the occipital fissure ; 8, the occipital eminence (see under Defects); 9, oblique cut surface of the splenium, of which a part of the natural surface is shown just caudad; 10, the cut edge of the paratela covering the thalamus; from 10 a line should pass mesad to the narrow area between the two lines. Defects.-The alcohol had so bleached the cinerea as to render the recognition of its outlines somewhat difficult, so the width of the cortical zone is only approximately accurate, and the " white line of Vicq d'Azyr," shown in Fig. 4746, is not indicated. The absence of shading upon the larger part of the surface would imply that it is all upon one level ; really, however, the highest part cor- responds nearly with the length of the exposed portion of the right caudatum, and from that level there are gentle slopes cephalad, caudad, and laterad. The cut edges of the hemiseptums are also at a lower level than the adjacent lateral parietes. Not all of the arteries are represented. The occipital eminence (8) is indistinct upon the right and made too small upon the left. The cut edge of the paratela (10) is made too thick and the relations of parts are indistinct: see § 55. On the left, near the word fimbria, is a defective patch of shading due to a blemish in the paper. The arachnoid is represented distinct from the pia at only two places, viz., on the right, near the cephalic end, where the former crosses the wide mouth of a fissure, while the latter dips into it as a fold, and at the callosal fissures, just caudad of the splenium. 104 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Brain. Brain. (SUPPLEMENT.) - CORTEX -intercerebral f. -MEDULLA ^GENU of the CALLOSUM TRECORNU -ENDYMA PIA I ARACHNOID -CAPUT of the CAUDATUM -FSEUDOCCELE HEMISEPTUM -PORTA central f -MEDICORNUAL VEIN - PARAPLEXUS TENIA -TENIAL VEIN CAUDA of CAUDATUM' -FIMBRIA Sylvian f/ supertemporal f. .POSTCORNU' 'occipital f । • CALCAR calcarine f. Fig. 61.-The Paracceles (Lateral Ventricles) of an Adult Male, Exposed from the Dorsal Side. Specimen 2867, Museum of Cornell University ; X 1.2. Preparation.-The entire body (an emaciated consumptive, weighing only 37.71 kilogrammes, 83.25 lbs.) was alinjected through the femoral artery. Eight and one-half litres were introduced on the first day, and some escaped from the mouth. On the second day, and again on the fourth, another litre was injected. On the fifth day there was injected a litre of Pansch-Gage starch mixture (see article Methods, etc., in this volume, § 24). When the brain was removed, on the eighth day, the only odor was of the alcohol. The substance had already hardened some- what and the arteries were well filled, notwithstanding some of the mass had extravasated into the thorax. The brain was transected through the mesencephal (see Methods, § 25, E), and the paracceles exposed by removing the dorsal portion of the cerebrum in thick slices down to the level of the callosum ; then in thinner slices and wedge-shaped pieces till the desired condition was reached. On the left the medicornu was exposed into the part extending cephalad ; the terminal portion extending also mesad could not be shown without cutting away an undesirably large mass. It is indicated in Figs. 4703 and 4707, although inadequately. On the left also the occipital lobe was cut to a slightly lower level than on the right; hence, on the right appears the dorsal slope of the calcar, while on the left the plane of section coincides with the line of its greatest eleva- tion. and the width of the postcornu is correspondingly reduced. To lessen the width of the figure a part of the lateral convexity was removed by dorso-ventral incisions between 3 and 4. and 4 and 5. so the line representing the pia ceases at 3 and 5. Finally, the left paraplexus was trimmed off quite closely. (For the rest of this explanation, see at bottom of page 104.) 105 Brain, Brain. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) usual fulness by Alex. Bruce in Brain, xiii., 171-190. There are included abstracts of previous cases and re- duced copies of the illustrations of some. In Vol. VIII., p. 192, the writer figured and briefly described one of three incallosal cat brains in the Mu- seum of Cornell University. At the Boston meeting of the Association of American Anatomists, December 29, 1890, he showed the brain of a sheep lacking the callosum and fornix ; but this specimen, fortunately unmutilated and thoroughly hardened, has not yet been figured or described. 49. The Relations of the Thalamus to the Paraccele.- With the cat, dog, sheep, and all other animals examined by the writer, excepting the apes, the rima ("great trans- verse fissure ") is just wide enough to admit the intrusion of the paraplexus, and there is no sign whatever of the entrance of the thalamus into the composition of the paracoelian floor. § 50. Points illustrated upon Fig. 60.-A. The close contact and even interdigitation of the mesal aspects of the frontal lobes concomitantly with the absence of a falx. B. The width of the fimbria and hippocamp, and thence of the entire fornix, as compared with the human. C. The apparent absence of the tenia. D. The total exclusion of the thalamus, even in ap- pearance, from the paracoelian floor. § 51. The same condition exists in man during the earlier half of gestation ; Vol. VIII., Fig. 4749. § 52. In a chimpanzee and orang examined by the writer (Nos. 265 and 2548 in the Museum of Cornell University) the rima is widened, especially in the middle of its length, so that a narrow zone of the thalamus may be recognized, covered, however, by the paracoelian endyma; see the writer's paper, "The Relation of the Thalamus to the Paraccele, especially in the Apes" (Js- sociation American Anatomists, Record, 1889, p. 20). § 53. In the human adult, apparently concomitant- ly with the thickening of the subjacent thalamus, the two margins are forced apart, as seen in Fig. 4751. But this does not produce a rupture in the floor. The endy- ma yields or grows correspondingly, and forms a thin portion of the floor, resting upon the thalamus and adapting itself to its contour. Sometimes, as in Fig. 4749, the endyma maintains its independence and con- stitutes a separable paratela; in other cases the pia primitively covering the dorsum of the thalamus dis- appears, and the paracoelian endyma becomes so inti- mately united with the thalamus as to seem to belong to it. Finally, as brains are commonly removed, preserved, handled, and dissected, there is almost sure to occur a rupture along some line between the tenia and the fimbria, so that the thalamus actually appears within the paraccele as represented in most figures-e.g., Fig. 4746. This subject is somewhat fully considered in the writer's paper, ' ' Th8 Relation of the Thalamus to the Paraccele " (Jour. Nerv. and Mental Disease, July, 1889, pp. 436-443), where the term paratela was first employed. § 54. Points illustrated on Fig. 61.-A. The general relation of the paracoeles (lateral ventricles) to the cere- brum ; although relatively much smaller than in the fce- tus, they are absolutely extensive ; here their natural ex- tent has been maintained by the injection of alcohol ; when examined in a fresh brain or in one hardened in the usual way their walls are often found nearly in contact. B. The terminal dilatation and squareness of the post- cornu, as contrasted with the pointed form which usually exists in brains not prepared by filling the cavities; sometimes, indeed, there has been doubt as to the extent of the postcornu, as admitted by Huxley, " Zool. Soc. Proceedings," 1861, p. 250 ; in Krause's "Handbuch," Fig. 479, the postcornua are merely linea. C. The great thickness of most of the parietes as compared with their thinness in the foetus, Fig. 4708. D. The retention of the foetal tenuity of a portion of the mesal wall, viz., the hemiseptum (halves of the sep- tum lucidum) ; see, however, § 46. E. The considerable length and width of the human pseudoccele (fifth ventricle) ; so far as the writer has ob- served it is wider than in any other animal; in Fig. 60 (of the sheep) it is unnaturally wide. F. The relation of the cortex (cerebral ectocinerea) to the medulla (alba), as an ectal layer following the fissu- ral indentations. G. The relation of the insula to the Sylvian fissure ; the former is a typical subgyre, the latter is a typical superfissure ; VIII., p. 160, §§ 260, 261. H. The relation of the claustrum to the insular cortex ectad and the lenticula entad ; see also Fig. 4785. I. The constitution of the caudatum by two regions, a larger cephalic, the caput, and the cauda, narrow, and following the curve of the medicornu. J. The junction of the occipital and calcarine fissures so as to constitute as it were a single bifurcate fissure ; VIII., Fig. 4768, and this article, § 76. K. The size and distinctness of the collateral emi- nence, an ental elevation or colliculus, corresponding to the collateral fissure upon the ventro-mesal aspect of the cerebrum ; VIII., Fig. 4768, 4770. L. The existence, on the left, of an elevation, the oc- cipital eminence, corresponding with the occipital fissure. This colliculus is distinct in the foetus (Figs. 4748 and 4764), and in some adults (Fig. 4736), is better marked than in this specimen. M. The location of the portas (foramina of Monro), and their visibility in a direct dorsal view of the para- coeles ; by reference to Vol. VIII., Figs. 4740, 4744, it will be seen that each porta opens into the corresponding paraccele obliquely, looking laterad, cephalad, and also dorsad ; hence it is visible from three different directions at right angles with one another. N. The distance between the two portas. Deducting the slight length of the passages themselves, this dis- tance represents the width of the aula, the mesal division of the prosocoele, which is commonly reckoned as merely the cephalic part of the " third ventricle." O. The continuity of the hemiseptum, a part of the mesal wall of the paraccele, with the fimbria, a part of its floor; indeed, their topographical relations may be illustrated by bending a sheet of paper or metal, and holding it so that one portion is vertical and the other nearly horizontal ; the former will represent the hemi- septum, the latter the fimbria. P. The narrowness of the human fornix as measured by the distance between the lateral margins of the two fimbrias in their horizontal portions ; compare the sheep, Fig. 60. It is true the word fornix does not occur on the figure ; but, as somewhat fully discussed in VIII., p. 138, the fornix is constituted by the two hippocamps, with their fimbrias, united at the meson by the forni- commissure (Fig. 4751) ; in this dissection the fornicom- missure is invisible, being upon a lower plane, so the fornix, as a whole, cannot be indicated. Q. The smallness of the paraplexus as compared with its foetal condition, Fig. 62 and Vol. VIII., Fig. 4708. R. The formation of the free margin of the paraplexus by the medicornual vein, considerable in size and more or less contorted, by which the blood of the plexus is returned to the velar vein. S. The considerable width of the attached portion of the paraplexus. This appears on the left side where the plexus has been trimmed quite closely. The rima is the line of apparent interruption of the parietes for the intrusion of the paraplexus, and is unusually wide in this specimen. T. The completeness of endymal continuity and ccelian circumscription. These terms are discussed in Vol. VIII., pp. 122, 123, as exemplified upon the mesal aspect of the brain. Fig. 4711. There only the mesal cavities are visible. In the present figure (aside from the pseudoccele, which is not a true member of the series) there appear only the great lateral cavities of the prosen- cephal. The continuity of the endyma is represented by the uninterrupted heavy line surrounding either para- coele. Likewise is the endyma a continuous sheet upon the sides and floor of this cavity. At the margins of the rima it may be traced as a smooth surface upon the in- truded paraplexus, and its cut edges are represented on 106 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Brain. Brain. the left in this figure. The writer is aware that several authors claim or admit the existence of orifices along the medicornu whereby the coeliolymph may escape therefrom into the adjacent subarachnoid space ; but lie feels compelled, at present, to regard these as artifacts, like the half-dozen ruptures of the endyma near the porta in the preparation shown in Fig. 4742. U. The apparent entrance of the thalamus into the composition of the floor of the paracoele. This condition is presented on the left side ; on the right it is hidden by the overlapping paraplexus. § 55. In what Sense does the Thalamus form Part of the Floor of the Paracoele (Lateral Ventricle) ?-So wide-spread and so deeply-rooted seems to be the notion that the thalamus constitutes a part of the paracoelian floor in the same sense as do the caudatum and the hippocamp, that, much as he would prefer to avoid criticism, the writer is induced to comment upon the current representations of this region. Admitting, for the sake of occupying common ground, that a certain area of the dorsal surface of the human thalamus is covered by endyma; that it is continuous with the caudatum, and that therefore, like that body, it enters into the composition of the paracoelian floor; none will deny that an adjoining area of this same dorsal surface is as distinctly covered by pia ; that it is con- tinuous with the optic lobes (gemina), and like them wholly excluded from the encephalic cavity. To represent the entire dorsal aspect of the thalamus as a smooth, unbroken surface is practically to affirm one of two things : either the whole is pial or ectocoelian, which would be in contravention of universal belief ; or else the whole is endymal or entocoelian, which would involve not only the gemina but the cerebellum and oblongata, a manifest reductio ad absurdum. This, nevertheless, with perhaps a single partial ex- ception, is what we find in the accepted treatises on Human Anatomy, new as well as old.* The figures pur- porting to represent the natural surfaces fail to exhibit any lines of demarcation between entocoelian and ecto- coelian areas either by a difference in texture or by raised edges to indicate where the reflected endyma had been divided. The extreme limits of misrepresentation are reached in Huguenin (Fig. 49), where the utter absence of distinction between surfaces which are said to be inside, and other surfaces which are said to be outside can hardly fail to mislead or at least confuse the reader who is not already thoroughly grounded in correct no- tions as to the general morphology of the brain. The prevailing misconceptions as to the relations of the thalamus to the encephalic cavities are exemplified even in the recent translations of Edinger (Figs. 49 and 55) and of Obersteiner (Figs. 18 and 26). In the last, it it is true, there is a semblance of demarcation between the diacoelian and paracoelian surfaces of the thalamus, a long, narrow line, just laterad of the " sulcus choroid- eus;" but in reality that line of reflection of the para- coelian endyma is as shown in Vol. VIII., Fig. 4751, at a considerable distance from the line of reflection of the diacoelian endyma upon the velum. Dalton's " Topographical Anatomy of the Brain " was designed primarily to aid in recognizing the location of pathological conditions ; furthermore, it is evident that the mode of removal of the brain, of handling and cutting it, would not conduce to the maintenance of membra- nous attachments. But in examining Series C, Plates VIII., IX., and X., for example, it is disappointing to find not only the rupture of these attachments, but also in the outline duplicates an unbroken continuity of line from the diacoele into the paracoele at either side. With Gegenbaur's " Anatomie des Menschen," 3d ed., 1888, the case is different. This is an anatomical trea- (SUPPLEMENT.) tise, by a morphological leader. Yet the transections on p. 846 and the dorsal aspects on pp. 824 and 834 utterly fail to comport with the now universally admitted view of the restriction of communication between the diacoele and the paracceles to the portas (foramina of Monro). § 56. The Transitory Cerebral Fissures.-In the Jour, of Anat, and Physiol., xxiv., 342, D. J. Cunningham makes the following important observation bearing upon the always interesting problem of the distinction between the ordinary mammals and the monkeys, apes, and man : " Although I have looked for the transitory fissures in cat and dog embryos of different stages I have never seen any infolding of the cerebral wall that could be compared with those we have described in the human brain ; the temporary fissures are in all probability pecul- iar to the primates." § 57. Points illustrated by Fig. 62. A. The great size lateral fissure. pain plexus. a mesal colliculus. a lateral colliculus. a lateral gyrus. a mesal fissure. part of falx. Fig. 62.-Transitory Fissures of a Foetus measuring 5-6 ctms. from Vertex to Nates, and estimated at Fourteen Weeks ; 2770 ; X 2.2. Preparation.-After the exposure of the brain the frontal end of the cerebrum was sliced off so as just to clear the large paraplexuses. Of the falx all was removed excepting the fragment shown. The head was tilted so that the face is much foreshortened. of the paracoeles and paraplexuses at this stage ; compare Fig. 4708. B. The slight and nearly uniform thickness of the parietes. C. Suggestion of a wrinkling or corrugation of the parietes as if from growth within a confined space. D. The approximately symmetrical distribution of these corrugations. E. The length of the fissure on either side, reaching from the Sylvian fossa nearly to the meson. F. The absence of any indication of branching; see §58. § 58. Do the Lateral Transitory Fissures Branch ?-In none of the specimens or figures accessible to the writer do the transitory fissures on the lateral aspect present the bifurcations which are so common with most of the per- manent fissures ; it is to be remembered also that in the adult the total fissures (calcarine, occipital, hippocampal) are less subject to branching. The question should be carefully considered. § 59. In Vol. VIII., p. 148, § 188, it was stated that the writer had not yet encountered a foetal brain in which (as said by Mihalkovics and repeated by Osborn, Vol. I., p. 640) the temporary fissures had vanished before the permanent ones appeared, leaving the surface smooth. He has since prepared a specimen (No. 2644 in the Mu- seum of Cornell University) Miich measures 10 ctm. from the vertex to the nates, and 14 ctm. including the legs, somewhat flexed ; the age was supposed to be about four months. Excepting the Sylvian fossa, the lateral aspect of the exposed left hemicerebrum is perfectly smooth ; * The exception referred to is Meynert's Psychiatry, where Fig. 16 includes a line marked L, crossing the thalamus, and more distinct upon the left than upon the right; upon the explanation it is named "Linea aspera," but there is no further reference to it, and its morphological significance is not mentioned : consequently, although it probably does represent a torn edge of endyma, the figure alone would not convey any definite information. It is just to add that the volume of the tenth edi- tion of •• Quain" containing the nervous system is not yet accessible. 107 Brain. Brain. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. the mesal surfaces and the right hemicerebrum have not mainly in the following respects : (a) more secondary been exposed. and tertiary fissures are included ; (6) the principal fissures § 60. The Permanent Fissures.-D. J. Cunningham is are more or less sinuous as in actual brains ; (c) a long- preparing an elaborate account of the cerebral surface, to arched fissure, practically identical with Turner's intra- be published by the Royal Irish Academy as " Cunning- parietal (Ecker's interparietal), is interpreted as consisting ham Memoir," * No. vii. of three portions, (1) a cephalic, retrocentralis inferior ; In Vols. xxiv. and xxv. of the Jour, of Anat, and (2) an intermediate, intraparietal ; (3) an occipitalis Physiol, have appeared abstracts (sometimes illustrated) anterior, for which is given the synonym Affenspalte. of his views respecting the following : The Intrapa- This, however, is certainly not the writer's exoccipital, rietal (parietal and paroccipital of the writer) ; the Com- but the transverse occipital of Ecker, which the writer plete Fissures (the writer's transitory and permanent has shown to be the caudal part of the paroccipital, total) ; the Rolandic (central) Fissure ; the Sylvian; the which Eberstaller does not separate from the intrapa- Insular. rietal. The undeniably great value of these abstracts and of (d) A needless and-in the writer's judgment-unwar- the work which they anticipate is somewhat impaired by ranted change of names; e.g., the short fissure cutting a tendency toward pcecilonymy (see Vol. VIII., p. 528, the dorsal margin a little cephalad of the central was first § 72), i.e., the employment of more than one name for described by Lussana s&solco inflesso, and that was Angli- the same part in the same paper (e.g., " Fissure of Ro- cized by the writer as inflected fissure ; by Broca it was lando " and " Rolandic sulcus "), and by an ignorance or called incisure preovalaire, and by Schwalbe sulcus para- neglect of American fissural literature. centralis; disregarding priority and brevity, Eberstaller (SUPPLEMENT.) superfrontal f. medifrontal f. precentral f. supercentral f. central f. D postcentral f. parietal f. paroccipital f. occipital f. subfrontal f. presylvian f. central f. y Sylvian f. 'supertemporal f. Fig. 63.-The Left Hemicerebrum of a Philosopher (Chauncey Wright), from the Dorso-Lateral Aspect : X .9. Preparation.-See Vol. VIII., Fig. 4779. The figure is based upon a photograph taken as nearly as possible at an angle of 45° with the meson, so as to present the dorso-lateral aspect. The line connecting the superfrontal and medifrontal fissures was made inadvertently. The numerals 1 to 22 are at the same points as in Vol. VIII., Fig. 4779; on that figure 23 is designated the central isthmus, which here has the word printed upon it; 33 is just at the end of the short inflected fissure. There is also in the Brit. Med. Jour., August 2, 1890, an article by Cunningham discussing general questions connected with tiie fissures ; a brief abstract is given by Hill, Brain, xiii., p. 552. § 61. Eberstaller has published an admirable account of the fissures and gyres, especially of the frontal region, under the title, " Das'Stirnhirn ; ein Beitrag zur Anat- omie der Oberflache des Grosshirns," 0., pp. 140, with nine figures and one plate. Besides its general excellence two features will especially commend themselves, viz., the Bibliography of 117 books and papers on the subject, and the Lists of Synonyms of each fissure and gyrus. The work concludes with a discussion of the homologies of the human fissures with those of the other primates and the carnivora. § 62. Eberstaller's plate presents what he regards as the normal fissural pattern of tl'e lateral aspect only. From the writer's diagram (Vol. VIII., Fig. 4769) it differs calls it sulcus pr&centralis mediates ; again, the perfect title subfrontal, applied by Owen and the writer to the fissure forming the dorsal boundary of Broca's gyrus, has been applied to a fissure or combination of fissures on the mesal aspect. § 63. Owen's names, although as a whole the best ever proposed, are in no case ascribed to him, and the consid- erable section of his "Anatomy of Vertebrates" treat- ing of the fissures and gyres appears to be unknown to Eberstaller. § 64. Even more specialized is the monograph of G. Herve, "La circonvolution de Broca"[in man and apes], O., pp. 164, with 4 plates, Paris, 1888. The writer is not prepared to discuss Herve's conclusions as to the degree of representation of the subfrontal gyre in apes ; but he is compelled to dissent from the statement (p. 22) that of the two branches of the Sylvian fissure " ascending" and " horizontal " (corresponding respectively to the writ- er's presylvian and subsylvian) the latter is the more con- stant. § 65. In neither of these papers, nor, indeed, in any * Since the above was written the writer has learned that the memoir has been published, but he has not yet received it. 108 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Brain. Brain. (SUPPLEMENT.) others known to the writer, does there seem to have been adopted what he regards as an essential requisite to the elucidation of the subfrontal region, viz., the removal of the postoperculum and of other parts in order to expose the depth and relations of the fissures. § 66. Points illustrated by Fig. 63 (mostly in addition to those which are enumerated in Vol. VIII., p. 158).- A. The unfamiliar appearance of a hemicerebrum when viewed from this oblique aspect. B. The distinctness of the angles between the cephalic and the dorsal and ventral outlines ; this was commented upon by the first describer of this brain, Professor Thomas Dwight, and appears in Vol. VIII., Fig. 4779, though less markedly. C. The completeness and width of the isthmus between the dorsal and ventral portions of the central fissure ; in Fig. 4779 this is marked 23, but is so much foreshort- ened as to be hardly visible. D. The simple, curved form of the dorsal part of the central fissure, with no bifurcation such as exists at both ends of the ventral portion. E. The independence of the supercentral fissure. F. The presence of a medifrental fissure subdividing the large area between the subfrontal and superfrontal fissures. G. The junction of the postcentral fissure with the parietal, and the continuity of the parietal with the par- occipital ; whether this junction occurs at 1 or at 2 can- not be determined at present. H. The great length of the supertemporal fissure and the complexity of its dorsal end. I. The absence of a distinct exoccipital fissure. J. The presence of a long and curved fissure, 6-7, on the lateral aspect of the occipital lobe. § 67. The Homologies of the Central and Cruciate Fis- sures.-Upon several grounds, zoological, physiological, and even psychological, it is very desirable to ascertain whether the central fissure ( f. of Rolando) of man, apes, and monkeys is represented in the Carnivora, and whether the carnivoral cruciate fissure is represented in the Pri- mates. * In Vol. VIII., on pages 115 (§ 32, G, Fig. 4698), 160 (§ 258), and 134 (Fig. 4729) the question is stated and held to be unsettled. It has since been discussed by W. Turner {Jour, of Anat, and Physiol., xxii., pp. §54-581), and by M. Benedikt {Ibid., xxv., p. 213). The latter's views merit high consideration, and although the writer is far from ready to adopt them, they shall be here set forth, with the remark that the lack of figures and a cer- tain vagueness of description render the original some- what hard to interpret. For the convenience of Ameri- can readers the publications necessary to cite will be indi- cated as follows: Broca, " Memoires sur la cerveau de 1'homme," 1888; Meynert, " Psychiatry," translated by Sachs, 1885 ; Wilder, "Anatomical Technology," 1882, 1886, 1892, and Handbook, 1889. A. Broca's view that the central fissure is represented in Carnivora by the presylvian of Meynert (superorbital of Wilder) is combated upon the ground that the latter lies cephalad of the psychomotor areas and the group of giant cells of Betz; "therefore it is proved that the presylvian fissure cannot represent the central fissure ; and it is not a consoling spectacle when anatomists, seduced by the error of an eminent man, have so little respect for the results obtained by physiologists and his- tologists." B. Benedikt then states that the cruciate fissure lies in the " anterior limit of the psychomotor areas," and con- cludes that the central is represented by " a transverse fissure on the anterior end of the first primitive fissure in very many non-primate species." This is apparently the ansate fissure of Krueg and the writer ; in Anat. Technology, Pl. I., Fig. 1, it is independent on the right, but on the left connected with the lateral ; in the Hand- book, Vol. VIII., Fig. 4698, it may be recognized on the right, but is not designated. In this connection it must be noted, however, that Cunningham {Jour, of Anat, and Physiol., xxiv., 153), says " it is now very generally ad- mitted that the sulcus coronalis (coronal fissure of Krueg and the writer) has its homologue in the fissure of Ro- lando." C. According to Benedikt the carnivoral cruciate fis- sure is represented in man by two short fissures, viz., (1) " on the inner surface, an arcuate fissure which repre- sents the anterior limit of the paracentral lobe ; (2) a little transverse fissure on the outer surface limits generally the superior part of the anterior central gyrus from the an- terior part of the frontal lobe, and represents that part of the cruciate which enters in the outer surface in ani- mals." It is evident that Benedikt's mesal fragment (1) corre- sponds to the cephalic part of the paracentral fissure, as shown in Figs. 4766 and 4768 ; but his description leaves one in doubt whether the lateral fragment is the inflected fissure or the supercentral or some third fissure. It is surely unfortunate that a subject so important should be involved in needless obscurity by the lack of figures or explicit descriptions. § 68. In the Revue scientifique, vol. xlviii., pp. 555-563, 1892, Topinard discusses " Le type des circonvolutions cerebrales dans la serie des mammiferes. § 69. The cerebral fissures of a child of twelve and one-half years have been studied by Zilgien in the Jour, de I'Anat, et de la Physiologie, xvii., 613-621, 1891. § 70. Although made primarily for the determination of physiological and psychological correlations, Donald- son's careful " Anatomical Observations on the Brain and Several Sense-Organs of the Blind Deaf-Mute, Laura Bridgman" {Amer. Jour, of Psychology, iii. and iv., 1890-91) involved a detailed description of the fissures and gyres and the collation of much literature. § 71. In his study of the brain of a murderer {Amer. Neurol. Assoc. Transactions, 1892, 54) Donaldson adds to the mass of doubt respecting the validity of Benedikt's claim as to the significance of fissural confluence; see Vol. VIII., p. 163. § 72. Several Chinese brains have been described by Benedikt and by Dercum, the latter in the Jour. Nerv. and Mental Disease, July, 1889, and September, 1892. An Australian brain is described by A. D. Rolleston in the Anthropological Institute Journal, 1887, pp. 32-42. § 73. Sir William Turner's address, " The Convolu- tions of the Brain : a Study in Comparative Anatomy,'* Jour, of Anat, and Physiol., October, 1890, 105-153, has been referred to in another connection (§ 28).* § 74. A case of remarkable fissural malformation and asymmetry is described and figured by W. Turner in the Jour. Anat, and Physiol., xxv., 327-348. The subject was an epileptic, twenty-six years old, and the entire (alco- holic) brain weighed 1,107 grammes (39£ oz.) ; the left hemicerebrum 530 grammes, the right 437. The left fis- sures are stated to have had a normal development and arrangement, but on the right the Sylvian fissure was wide open so as to expose the insula largely ; the central fissure was wholly absent, together with the precentral and postcentral; the lateral surface presented three arched fissures, demarcating four arched gyres about the Sylvian fissure, a condition analogous to that in the dog and many other Carnivora. The interest and importance attaching- to this case, as to the even more extraordinary malforma- tion described by the same anatomist and referred to, with a figure, in Vol. VIII., 193, would have warranted a larger number of better figures, and a representation of the left hemicerebrum. * Other recent publications on Assures are the following: Lussauer : Circumvolutionum cerebrnlium, etc., Patavia, 188S, O., pp. 19, 30 plates. Schnopfhagen: Faltungen des Grosshirns, Neurol. Centlbl., vii., p. 549. Benedikt: Beitriige zur Anat, der GehirnoberHiiche, Wien. Med. Jahrb., iii., p. 39. 1888. Eberstaller : N<x:h einmal die Insula Reilli, Anat. Anz., iii.. 13, 1888. Mingazzini, L. : Ueber die Entwickelung dor Furchen u. Windungen des menschlichen Gehirns, Unters. zur Naturl. d. Menschen u. d. Thiere, xiii., p. 49^ 1888. Mingazzini. G. : Intornocei solchi e le circonvoluzioni cerebrali dei primati e del feto umano, Estratto degli, Atti della R. Accad. Med. di Roma, iv., p. 48, 1888. Turner, W. : Com- parison of the Convolutions of the Seals and Walrus with those of the Carnivora and of Apes and Man, Jour. Anat, and Physiol., xxii., p. 554, July, 1888. Falcone, C. : Studio sulla circonvoluzione frontale in • feriore, Rendiconto dell' Accad. delle scienze. fisiche e matem., Napoli, xxvii.. p. 195, 1888. Mahaudeau : Coupes descirconvolutions cerebrales, Bull, de la Soc. d'Anthrop. de Paris, x., p. 771.' 109 Brain. Brain. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) § 75. Four cases of non-union of the occipital and cal- carine fissures, in white idiots, have been described by Dercum (Jour. Nerv. and Mental Disease, July, 1889). Among all the hemicerebrums prepared by the writer this condition exists in but one, the right of an adult female paretic (Fig. 64). Such cases are instructive on both mor- phological and zoological grounds. When first formed the two fissures are commonly in- dependent, and in the adult there is often a vadum or shallow at the place of junction. A.complete separation, such as is shown in Fig. 64, is a retention of a common foetal condition. In most apes and monkeys the two fissures are sepa- rate ; but usually the calcarine is the longer, and the oc- cipital fails to reach it, a condition comparable with that in the foetus shown in Vol. VIII., Fig. 4761. In one case, therefore, the interruption is a calcarine isthmus, in the other an occipital isthmus. Cases of occipito-calcarine independence have been observed also by II. C. Chap- man (Acad. Nat. Science Proceedings, 1892, p. 208) and G. the considerable extension or the central upon the mesal aspect ; Vol. VIII., p. 157, § 236. H. The presence of a subcalcarine fissure. § 77. The Need of Particular Brains.-From the phys- iological and psychological stand-point it is clearly de- sirable to study the cerebrums of persons whose men- tal or physical powers were marked and well known. The present condition of things is illogical and unpro- fitable. We scrutinize and record the characters and attainments of public men, clergymen, and friends, whose brains are unobtainable. We study the brains of paupers, insane, and criminals, whose characters are unknown or perhaps not worth knowing. It is at once a reproach and an irreparable loss to science that the community has not yet been convinced that the preservation and study of one's brain is an honor to be coveted. Who can set a limit to the results that might have been attained from the examination of the brains of soldiers like Grant, Sherman, and Sheridan; of preachers like Beecher, Brooks, and Howard Crosby ; of naturalists like Agassiz, Gray, and Jeffries Wyman ; of lawyers like Tilden, Conkling, and Benjamin Butler? How long must science wait for a general sentiment such as is embodied in the declaration of an eminent historian, that science is as welcome to his brain as to his old hat, and that he wishes he had ten of them ? It is encouraging to know that the brain of the late George Grote, historian of Greece, has been described by John Mar- shall in the Jour, of Anat, and Physiol., vol. xxvii., pp. 21-68, and that the American An- thropometric Society has al- ready the brains of Joseph Leidy (its first president), of his broth- er, Dr. Philip Leidy, and Dr. James W. White. * In Vol. VIII. (§ 280), there- fore, the writer urged the pre- eminent value of the brains of college professors for the eluci- dation of the correlation be- tween the mind and its bodily organ. § 78. The Greater Need of Average Brains. - Another as- pect of the matter has impressed the writer more and more dur- ing the past year, viz., the need of a fissural standard, based up- on the careful comparison of large numbers of average, in- telligent, educated, and moral individuals, excluding the emi- nent as well as the immoral, the ignorant and the insane. The first step in this direction has been taken in the acquisition of the brain of a lawyer embodying all the above-mentioned desirable characteristics. In further- ance, there have been printed numerous copies of the fissural diagrams (Vol. VIII., Figs. 4768 and 4769), with explanations,t for distribution to the classes in Physiol- ogy at Cornell University. Besides full explanations, there are the following admission and suggestion : central f. paracentral g. - precuneal f. paracentral f. precuneus callosal g. adoccipital f. 1 callosal f. callosum occipital f. .cuneus .calcarine isthmus .2 .calcarine f. sub-calcarine g. splenium 6 fasciola hippocampal g. occipital f. ■ sub-calcarine f. - post-calcarine f. ■collateral f. -3 collateral f. subcollateral g. 7 . 4 -5 Fig. 64.-Caudal Half of the Mesal Surface of the Right Hemicerebrum of an Adult Female Paretic. No. 2358 in the Museum of Cornell University ; X t in the white as well as the negro. The relations of the fissures to each other and to the common stem (called occalcarine by the writer, VIII., p. 153, G) have been dis- cussed by D. J. Cunningham, Jour. Anat, and Physiol., xxiv., 327-334. § 76. Points illustrated on Fig. 64.-A. The complete separation of the calcarine fissure from the occipital by a calcarine isthmus. On the other side the two are con- nected as usual. B. The bifurcation of the calcarine at each end, constituting a zygal fissure ; Vol. VIII., Fig. 4773. C. The extension of the occipital fissure so as to rep- resent what is usually the common stem of it and the calcarine, the occalcarine ; Vol. VIII., p. 153, § 213. D. The presence of a " spur " extending caudad from the occipital toward the calcarine upon the isthmus. E.- The appearance of trifurcation, of the dorsal end of the occipital. The middle extension, however, is con- tinuous with the fissure only superficially ; the cephalic branch is apparently the writer's adoccipital ; the caudal, although doubtless the dorsal part of the occipital, presents an unusual curve and is invisible from the lateral aspect. F. The extent of the precuneal fissure. * In 1890, following the example of the French Societe mntuelle d'Autopsie, there was formed in Philadelphia an American Anthro- pometric Society, in which the writer had the honor of being appointed a member of the Publication Committee. The requirement that all brains should be deposited at the headquarters of the society seemed to the writer from the first undesirable, and he withdrew in the following communica- tion to the president, dated December 20. 1891 : " I hereby resign my membership in the society. Reflection has con- firmed the views already expressed to you personally : 1. No other institution or locality is entitled to absorb or appropriate in any sense the encephalic material or reputation, present or future, of this Uni- versity. 2. My own circumstances and plans for investigation would preclude any such active co-operation as might naturally be expected. With hearty good wishes for the success of the society as a local or university organization for the increase and dissemination of important and accurate knowledge reflecting the brain, I remain, etc." + These diagrams will be sent to any who ask for them. 110 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Brain. Brain. " As is at present usual in collections, most of the specimens available for study came from ignorant, in- sane, or criminal persons ; it must be borne in mind that the fissural pattern of the average, intelligent, educated, and moral human being is undetermined. Hence, although these are believed to be improvements upon previous diagrams, they must be regarded as provisional and im- perfect. "It is hoped that this and succeeding classes may in- clude some who will recognize the desideratum above indicated and will follow the enlightened example of several graduates and professors of this University in giving written directions to the effect that their brains shall be saved for high scientific uses rather than wasted upon worms. Steps have been taken toward the forma- tion of a Cornell Brain Association, and similar organiza- tions might well be established at other institutions of learning and in many cities." Those who have thus devoted their thinking organ to the service of thought with their successors are present undergraduates of Cornell University, gradu- ates, members of the present teaching body, a former professor and an eminent non-resident lecturer. Per- haps the most interesting results are to be anticipated from the comparison of the brains of a brother and sister.* § 79. Brain Weight.-In connection with this subject (Vol. VIII., pp. 163, 164) should have been mentioned the paper by Thurnam in the Jour, of Mental 'Science, April, 1866 ; also Topinard's " Elements d'Anthropologie Generale," Chaps, xv. and xvi. § 80. The relations between the weight of the brain and its parts and the stature and mass of the body, in man are discussed by the late John Marshall, in the Journal of Anat, and Physiol., xxvi., pp. 445-500, with an interest and instructiveness that would have been still greater had he discarded the insular ounce and inch in favor of the now almost universally used metric meas- ures of weight and length. The following significant conclusion is quoted from Donaldson's review of the paper in the Jour, of Nerv. and Mental Disease, xvii., 776, October, 1892 : " Dr. Marshall finds that when the smaller weight and stature in the female are given their proper value in calculations, the encephalon in the female is proportionally as heavy as in the male. On this sub- ject, see also an Editorial in the New York Medical Record, October 26, 1889. § 81. The relative weights of the two halves of the human cerebrum are discussed by W. Braune in the Arch. f. Anat. u. Physiol., Anat. Abt., 1891, pp. 253, 270. § 82. A marked exception to the still too confidently affirmed generalization as to the correlation between brain- weight and intellect is afforded by two brains obtained by the writer in 1891 ; one (2870) was from a lawyer and writer, the other (2912) from an ignorant black janitor. There is little difference in respect to amount of fissura- tion ; when fresh, the lawyer s brain weighed 1225 grammes (43.20 oz.), the janitor's 1250 grammes (44.09 oz.). The janitor was heavy and strong, the lawyer spare, though active ; the former under thirty years of age, the latter in his ninetieth year. § 83. Relative Weights of Body and Brain.-In Vol. VIII., p. 163, § 287, the writer gave as the "least mis- leading statement," the opinion that the human brain is relatively heavier than that of any animal larger than a cat, in which the cerebrum is fissured. This must now be qualified. Through the kindness of Director Smith of the Central Park Menagerie, the writer lately examined a male baboon (Cynocephalus ha- madryas (?), No. 2980). Its body weighed 5738 grammes (12.6 pounds), and its brain 171 grammes. The body is thus only 33.5 times as heavy as the brain ; as stated in Vol. VIII., p. 163, § 286, in healthy human beings the ratio is probably about 1 to 45 ; in those dying from dis- (SUPPLEMENT ease (like the baboon, which died of tuberculosis) it is variously estimated at 35.20, 36.46, and 36.50. Unfortu- nately the age of this baboon is uncertain ; supposed at the Menagerie to be about seven years, the incomplete dentition indicates about two. Other baboons should be examined in this regard. Burt G. Wilder. In addition to the papers already mentioned in connection with special topics, the following merit enumeration as new treatises or as new editions, or as readily accessible to American readers. Dana, C. L. : Text-book of Nervous Diseases ; being a Compendium for the Use of Students and Practitioners of Medicine. O., illustrated New York. 1893. Gray, L. C. : A Treatise on Nervous and Mental Diseases, for Students and Practitioners in Medicine. O., pp. 687, with 168 illustrations Philadelphia, 1893. Edinger, L. : Zwblf Vorlesungen fiber den Bau der Nervosen Central- organe. Zweite umgearbeitete Auflage. O., with 133 illustrations. Leipzig, 1889. Edinger, L., Vittum, W. H. (translator), and Biggs. C. E. (editor) : Twelve Lectures on the Structure of the Central Nervous System. O., with 133 illustrations. Philadelphia and London. 1890. Horsley, V. : The Structure and Functions of the Brain and Spinal Cord. O., pp. 223. London. 1892. Kronthal, P. : Schnitte durch das Centrale Nervensystem des Men- schen. Folio, 18 plates. Berlin, 1891. Minot, C. S. : Human Embryology. Bov. O., pp. 815, 463 figures. New York, 1892. Obersteiner, A., and Hill, Alex, (translator and annotator): The Anatomy of the Central Nervous Organs in Health and in Disease. O., pp. 432, with 198 illustrations. Philadelphia, 1890. Quain, J. (Schafer, E. A., and Thane, G. D„ editors): Elements of Anatomy. Tenth ed., in three vols., O. London. 1890-93. (This edition has been largely rewritten, has many new illustrations, and the titles of recent publications.) Wilder, B. G., and Gage, S. H. : Anatomical Technology as Applied to the Domestic Cat. Third ed.. from the second revised. O.. pp. 600, 130 figs., and 4 lith. plates. (Chap. X., pp. 400-503, is devoted to the brain.) New York and Chicago, 1892. The usefulness of the Anatomischer Anzeiger was mentioned in Vol. VIII., p. 164. Special records of neurological literature are made in the Journal of Comp. Neurology by the editor, C. L. Herrick (Granville, O.), and in Schmidt's Jahrbficher ftir in- und auslandische Medicin, by Edinger under the title of "Bericht uber die Leistungen auf dem Gebiete der Anatomie des Central Nervensystems, and by Alex. Hill, in Brain. BRAIN, METHODS OF REMOVING, PRESERVING, DISSECTING, AND DRAWING. § 1. The article under the above title in Vol. VIII. of the Refebence Handbook (pp. 195-201) consisted largely of a series of memoranda often so condensed as to be hardly explicit. The present contribution will be in some degree an expansion of that, with additions and corrections in accordance with what has been published by others and the experience of the Anatomical Department of Cornell University.* It should be borne in mind that these methods are applicable mainly to the preparation and dissection of the brain for purely anatomical or morphological ends, such as are regarded in the articles " Gross Anatomy of the Brain," in Vol. VIII. and in the present volume. For histolog- ical and pathological purposes, in addition to the pub- lications referred to in Vol. VIII., p. 196 (first foot-note), consult the works of C. L. Dana and L. C. Gray, named on p. Ill of this volume, and the articles by Dana and Peabody (New York Medical Record, January 11, 1890, p. 53) and Van Gieson (New York Medical Journal, July 20, 1889, and January and February. 1892) ; the last, on "Artifacts of the Nervous System," has been reprinted as a pamphlet of 119 pages and 17 plates. § 2. Order of Treatment.-A. Remarks on the need of more attention to the subject (§ 3); the importance of early recognition of the form and connections of the encephalic cavities (§ 4); preliminary work upon animal brains (§ 5) ; the utilization of infant and foetal brains (§ 6). B. Preservation of foetal and infant brains (§§ 7-8). C. Preservative liquids : alcohol (§ 10) ; chromic acid compounds (§ 11) ; Fish's liquid, a zinc chloride mixt- ure (§ 12); dry preparations (§ 13) ; jars (§ 14). D. Injection methods: entocoelian (§ 15) ; arterial (§ 16) ; starch mixture (§ 24). Bibliography. * They are orphans, and without other near relatives who might ob- ject ; but it is understood in all cases that objections by husbands, wives, parents, or children shall be respected. * Besides the gentlemen named in Vol. VIII.. § 2, note, the writer desires to acknowledge the cordial and efficient cooperation of P. A. Fish, B.S.. 1890, Instructor in Physiology and Anatomy in Cornell Uni- versity, and of B. B. Stroud, B.S., '91, Assistant in Chemistry. 111 Brain. Brain. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) E. Removing the brain from infants and late foetuses (§ 25); from the adult (§ 30) ; removal in the dura (§ 33) ; 'weighing the fresh brain (§ 36); determining its volume (§ 37). F. Medisecting the cerebrum (§ 25, G); storage of hemicerebrums (§ 38) ; removing the pia (§ 39) ; label- ling specimens (§ 41). G. Dissection of the brain (§§ 43-45). H. Drawing the brain (§§ 46-58). § 3. Need of More Attention to the Subject.-In the large city schools considerable time is now devoted to the anatomy and physiology of the nervous system, and in- struction is given especially in histological methods ; but even there the gross anatomy is not always adequately worked out by the student himself upon good material, and it is to be feared that in some medical colleges the conditions described by the writer nine years ago* may still prevail. Inasmuch as he is permitted to clean scrupulously the abdominal muscles before examining the vastly more important viscera, the average first-year student is at least consistent in deferring the removal of the organ of the mind until he has carefully dissected the muscle that wrinkles the forehead. With saw and chisel he lacerates the brain, tears it in the effort to save entire the sacred skull-cap; injures it yet more in the process of extraction,! and places it upon a hard, flat surface, where its own weight completes the rupture of delicate connections and hopelessly distorts its shape. Here he leaves it (having to boil or clean some bones), perhaps for a day or two, prob- ably drying, and either freezing or decomposing according to the temperature. He then transfers it to a basin or pail, covers it with strong alcohol, notes with satisfaction that the surface hardens rapidly, feels sure of finding out all about the brain, and sees himself a future neurological expert, perhaps even an asylum superintendent. In due time, armed with his " Gray " and a big knife, he succeeds in identifying the cerebellum, the chiasma and the pons. Upon the cerebrum he recognizes the Sylvian fissure, but is doubtful about the central ; moreover, the effort to detach the dried-on pia creates so many undescribed depressions and fissural confluences that he imagines, d la Benedikt, that it belonged to some hardened criminal. Lifting the occipital lobes, his fingers readily enter cav- ities which must be the " descending horns of the lateral ventricles," a triumphant refutation of the opinion of certain "theoretical" anatomists that there is no such thing as a "great transverse fissure" till artificially produced. He then slices the brain secundum professoris artem, and is so pleased at demonstrating the ^centrum ovale majus'' that he is not seriously disturbed at the presence of an unexpected rent in the callosum and an irregular orifice at either side. Continuing his operations, he finds the interior of the brain a mass of amorphous pulp ; suspects that the names in the books have much the same significance as those of the heavenly constellations ; modestly admits that he may not be sufficiently advanced to comprehend the brain, and resolves that, when this branch is undertaken again, his armamentarium shall consist not of a scalpel but a spoon. § 4. Importance of Early liecognition of the Form and Connections of the Encephalic Cavities.-In Vol. VIII., p. 196, § 35, the recommendation would be more accurate were the word details printed in italics. What the writer desires to inculcate is the desirability of appreciating the fact that the brain has resulted from the unequal thick- ening of the walls of a series of mesal cavities which were primarily subequal in size, and from the great de- velopment of a pair of lateral masses, the hemicere- brums, about the lateral extensions, paracceles, of the mesal series. This idea may be gained from an em- bryo brain (Vol. VIII., Figs. 4691-4693), from a cast of the adult cavity (Fig. 4703), and from the mesal as- pect (Fig. 4711) and cerebral cavity (Fig. 4740), with- out attempting at first to master the exact contours, much less to learn the names of all the elevations and depressions. § 5. Preliminary Work upon Animal Brains.-In Vol. VIII., p. 195, § 3, the brain of the domestic cat was rec- ommended. Its advantages are unquestionable in re- spect to accessibility, ease of removal and preservation, and simplicity of fissural arrangement. The employment of the equally accessible and larger brain of the sheep has been hindered by the difficulty of extracting it from the head with either nippers or saw as commonly em- ployed. This was obviated in the spring of 1890 by P. A. Fish, who devised the following method : The cra- nium is removed from the rest of the head by sawing on a plane coinciding with the ventral margins of the orbits and of the foramen magnum. The corners of the mass are then sawn off, and the cranium nipped away, begin- ning with the base.* In addition to the practical reasons referred to above and in Vol. VIII., the brains of the cat, dog, pig, and sheep present this great advantage over that of man, viz., there is less preponderance of the cerebrum and cerebellum over the other regions and the segmental con- stitution pf the organ is thus more easily recognized. This is stated and illustrated in Vol. VIII., pp. 114-116. In the present volume it is more clearly indicated in Fig. 5, where the dorso-ventral lines, A-E, transect the several segments without involving adjoining segments, although the last requires the section to be made from the ventral side, and all are more or less oblique.f § 6. Utilization of Infant and Foetal Brains.-The treat- ment of this subject in Vol. VIII. (pp. 195, 196, §§ 4, 6, 28, 29, 30) is unsatisfactory, partly from lack of experi- ence since acquired, and partly from excessive condensa- tion. The procedures depend upon the object in view and upon the age and condition of the specimen. § 7. Early Foetal Brains, Two to Four Months.-Unless one has acquired considerable skill in manipulating such delicate objects, these should be hardened in place by one of the following methods, or by a combination of them ; a five per cent, solution of zinc chloride in alcohol is very effective with embryo brains : A. Injection of the preservative through the umbil- ical vein. B. Immersion ; if alcohol, or the above solution, is used the specimen should be suspended in it. C. Injection of the preservative with a hypodermic syringe both into the body in general and into the cav- ities of the brain.$ The cannula should be pushed through the scalp at the margin of the prefontanel, obliquely latero-ventrad so as to traverse the thin parietes and enter the large frontal portion of the paracoele ; Fig. 62, Vol. VIII., Figs. 4708, 4709. The success of the in- jection is shown by the expansion of the opposite half of the head due to the passage of the liquid through the portas into the corresponding paracoele. The exposure of such brains must be done under or over alcohol; the cranium, and dura must be divided to- gether at each cut. The operation is tedious, but the results are revelations, no matter how often performed ; no specimens are more beautiful or instructive; see Figs. 4697, 4756. § 8. Brains of the middle and later gestative periods and at term are most useful for the comprehension of the early and simple condition of the fissuresand of the ♦Methods of Studying the Brain: the " Cartwright Lectures" for 1884. New York Medical Journal, xxxix., 1884. pp. 141-148. 177-183, 205-209, 213-237, 373-377. 457-401. 513-510, 653-056 ; xl.. 113-116 : 64 fig. Abstracts in New York Medical Record, xxv., 1884, pp. 141-143, 197-199, 225-227, 365-367, 449, 450, 545. 546. + The article Anatomy in the last edition of the Encyclopfedia Bri- tannica (i., 876) seems to acquiesce in the present state of things as beyond remedy: "In taking the brain out of the cranial cavity this commissure [the medicommissure] is usually more or less torn through, and the cavity [diacoele] is consequently enlarged." * So expeditions is this method that in 1892 a hardened brain was sup- plied to each of the one hundred and sixty members of the general class in Physiology for dissection, in addition to the large series of permanent preparations, transections and selected half-brains with good mesal aspects put in their hands for examination. The study of the sheep's brain occupied the class at three exercises of two hours each. The direc- tions form part of the writer's " Physiology Practicums," and he hopes shortly to publish in detail the methods of removal and preservation. + As to monkey brains see § 8. * So far as the writer is aware, this was first done by Professor S. H. Gage. May 17, 1892, upon specimen 2947. 112 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Brain. Brain. order of their appearance. * The best results are obtained by their prompt removal as described in 25-29, and hardening in Fish's liquid or other zinc chloride mixture. The arterial injection of such brains rarely preserves them well, and the gyres are commonly so pressed to- gether as to interfere with both the removal of the pia and the recognition of their relations. § 9. In Volume VIII., p. 196, § 13, it is suggested that the use to be made of a brain be determined upon in ad- vance. The city neurologist has perhaps only to decide that a brain is needed ; but others, like the writer, may find it advantageous to keep in a portfolio (see Vol. VIII., p. 198, § 56) slip memoranda of what he wishes to do with fresh brains, or heads, adult or young, as the case may be; when the opportunity occurs he has only to decide among several things that might be done, and little time is lost. § 10. Preservative Liquids.-In Volume VIII., p. 196, § 23, a preference was expressed for alcohol. But the brain inevitably flattens in it more or less, and there is difficulty in recognizing the cinerea from the alba. § 11. Potassium Dichromate.-This is the chief ingre- dient of the well-known " Muller's liquid," which con- sists of two parts of it and one of sodium sulphate in one hundred parts of water. Beyond increasing the buoy- ancy of the liquid, the sodium sulphate seems to have no special value for either microscopic or macroscopic pur- poses and is often omitted. Mr. B. B. Stroud has determined for this article that, at the temperature of 20° C. (68° F.), a saturated solution of potassium dichromate contains about ten per cent, of the salt; at boiling the per cent, is forty-four. His method of using it for sheep brains (§§ 5 and 15, notes) was to effect the solution rapidly in boiling water ; when cool, enough water was added to float the brain just below the surface. As soon as the brain is firm to the touch it may be soaked for a day in water and then in alcohol, at first about forty per cent., then stronger, until the alcohol ceases to be colored, after which it may be kept in alcohol of not less than eighty per cent.f The alcohol that is so colored may be used for the same purpose with other brains, or in the storage of specimens not requiring it to be either colorless or strong. The Incompatibility of Alcohol with Compounds of Chromic Acid.-A chemist to whom the matter was sub- mitted states that when alcohol and potassium dichro- mate are mixed in any proportion the salt will be at least partially reduced, and there w'ill also be formed, from the alcohol, various compounds, as acetic acid, acetic aldehyde, etc. These processes will take place in either light or dark, but more rapidly in the light. « § 12. Fish's Liquid.-The following combination was devised in 1892 by Instructor P. A. Fish, of the Anatom- ical Department of Cornell University, and is found to answer the three requirements of preservation of shape, hardening of substance, and differentiation of tissue Alcohol (ninety-five per cent.), 200 c.c. ; water, 800 c.c. ; glycerine, 75 c.c. ; zinc chloride, 50 grins. The alcohol and water should be mixed first, so as to get a strength of twenty-two per cent, as determined by the alcoometer ; the variation in commercial alcohol is such as may render it necessary to add more to the mixture, but the total of the twenty-two per cent, mixture should be only about 1,000 c.c. ■ When shaken up thoroughly the specific gravity of the mixture should be about 1.04; if less, a little more glycerine and zinc chloride may be added. When the brain is introduced it should rest just at the surface, and the vessel should be deep enough to prevent its touching the bottom. If any part projects it may be submerged by covering it with a thin layer of absorbent cotton, the edges of which dip into the liquid. Masses having one flat side, e.g., hemicerebrums, should have that side up, the reverse of the desirable position when- as in alcohol-the specimen sinks to the bottom. If pos- sible the liquid should be injected into the cavities, and into the vessels, and these injections should be repeated daily for a week. After one to three days the brain will probably sink to the bottom ; the pia should then be removed, preferably without taking it from the liquid ; it may be steadied with beds of cotton. Half of the liquid is now to be replaced by ninety-five per cent, alcohol ; this is best done by drawing off a part with a syringe and introducing an equal quantity of the alcohol. In the lighter liquid the brain will sink to the bottom, and for twro days should rest on the fiat side if there is one ; if all the surfaces are convex, they should be padded with cotton, and the specimen turned fre- quently. After two days more half the lighter liquid may be replaced by alcohol, and in two or three days more all of it. The removed liquid may be utilized in vari- ous ways ; the percentage of zinc chloride is hardly great enough to be corrosive, and the alcoholic strength may be increased by the addition of ninety-five per cent. § 13. Dry Preparations of the Brain.-Laskowsky's method was mentioned in Vol. VIII., p. 196, § 27, note ; the following is translated from the abstract in the Neu- rologisches Centralblatt, vi., 341-342 : A. Rinse the fresh specimen in water to remove blood. B. Place in a mixture of water, 100 parts; alcohol (ninety-five per cent.), 20 parts ; boracic acid, 5 parts; let it remain in a cool place [for at least three days ; time not given], C. Remove the pia. D. In a saturated solution of zinc chloride in alcohol let the brain remain five or six days ; the bottom of the vessel should be covered with cotton. E. For fifteen to twenty days soak in a mixture of glycerine, 100 parts ; alcohol, 20 parts ; carbolic acid, 5 parts ; boracic acid, 5 parts. F. Let it dry in the air, protected from dust. The specimen is claimed to retain its natural volume, distinction of color, and elasticity.* § 14. Preserving- Jars.-Besides those mentioned in Vol. VIII., p. 199, the following deserve mention from the combination of three desirable qualities-width of mouth, clearness of glass, and cheapness : A. Tall, round, screw-capped jars, with nickel-plated caps, cork-lined, three sizes, viz. : 4 oz., 8 oz., and 16 oz.; Whitall, Tatum & Co., New York (Fig. 65). B. Butter-jar, 10 x 20 ctm., with tin screw-cap, lined, capacity about 1 litre ; Excelsior Package Co., 49 Warren Street, New York. C. Landenberger's Specimen Jars.-These have a rub- ber ring and a glass top retained by a wire. The smaller size is 3 x 3 in., capacity 6 oz. (180 c.c.); the larger, 3x4 (high), capacity 10 oz. (300 c.c.) (Fig. 66). £ 15. Entoccelian Injection.-To fill with ahardeningand preservative liquid cavities surrounded by flexible walls would seem to be a natural device both for the better preservation of the mass and for the maintenance of the forms and relations of the cavities.f * The writer desires to reiterate here the conviction expressed in Vol. VIII , p. 149, § 195, and on two previous occasions there named, as to the inutility of the brains of ordinary monkeys and even of aj>es for the elucidation of human fissural problems ; indeed, our present comprehen- sion and nomenclature of cerebral elevations and depressions would be far better than they are had neither Gratiolet nor any other anatomist ever examined a monkey brain. + The specimens may be more completely decolorized by absolute al- cohol (W. C. Krauss), oy hydrogen petoxide (Unna, Arch. filr Mikios. Anat., xxx.. 48. 1887). or by a one per cent, solution of chloral hydrate (Lee. " Microtomist's Vade Mecum "). t The microscopical distinction between alba and cinerea is permanent, but immersion in alcohol bleaches the cinerea to nearly the color of the alba in about a fortnight. * Experiments are now in progress in the anatomical laboratory of Cor- nell University upon other methods of making dry preparations of the brain. Methods have been described by Stieda (Neurolog. Cento alblalt, 1892, No. 5), by Moeli (C ntralb. ally. Path. u. path. Anat., iii., p. 1, 888). and by Struthers (Jour. Anat, and Physiol., xxii.. Appendix, p. ix). + The method was first employed by the writer, as assistant to the late Professor Louis Agassiz, at Nahant. Mass., in July, 18(17. for permanent preparations of great vascular sinuses in rays. Since that time it has been applied in the anatomical laboratory of Cornell University to the preparation and study of hollow organs of all kinds, stomach, ceecnm, heart, uterus, kidney, and brain. In 1880 he first learned that the injec- tion of alcohol into hearts was advised in 1860 by Hyrtl, and in 1879 by Mojsisovics ; the former ascribes the idea to William Hunter ; the writer is not aware that injection of a preservative into the brain cavities was practised or suggested by anyone prior to December 14, 1881, when he employed it upon a child's brain. 113 Brain. Brain. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. The account of entoccelian injection in Vol. VIII., p. 201, § 80, is not only too brief, but requires emen- dation in the light of later experience. A. Without conceding the existence of other natural orifices from the paracoeles (lateral ventricles) (p. 107, § 54), both human and animal brains present outlets for the (SUPPLEMENT.) A small glass syringe may be employed for injecting preservative liquids into the brain-cavities, either directly or by attaching a rubber tube and cannula. § 16. Arterial Injection of the Preservative.-This is re- ferred to in Vol. VIIL, p. 196, §§ 20 and 68, and is ex- emplified in Figs. 4684 and 4711. As compared with immersion it has the great advantages of rapidity and thoroughness. Any preservative may be employed, and alcohol maybe used at full strength. Alow temperature is needless, and even, perhaps, undesirable, as admitted in Vol. VIIL, explanation of Fig. 4884. Barring a slight shrinkage, the natural conditions and relations are maintained.* It must be admitted, however, that sometimes the gyres are somewhat crowded against each other, so that the pial folds are less readily and safely extracted, and the fissural relations less easily determined. This is not the occasion for a complete history of in- jection processes, or for the presentation of claims to originality. The transmission of preservative liquids to the tissues by a constant pressure apparatus connected with the vessels by which blood reached the parts dur- ing life is really so simple as well as effectual that it is hard to account for its comparatively infrequent sugges- tion and adoption. Without previous acquaintance with what had been done by others,f on October 7, 1883, with the co-operation of Professor S. H. Gage, the writer began upon the body of a young chimpanzee (No. 265) an alin- jection of the entire body which was prolonged for ten days and was completely successful. In November, 1885, a manatee (No. 844), 150 elm. long, was prepared in like manner: all the cats (75 to 150 per year) used by the gener- al class in Physiology are alinjected and packed away till wanted ; still-born children are commonly so preserved, and the writer recommends that, with alcohol obtained free of tax, all anatomical material in medical dissecting- rooms be thus rendered innocuous, free from unpleasant odor, and fit for prolonged and thorough examination. § 17. Location of the Arteries.-In Vol. VIIL, p. 200, S 68, the relations of the arteries were very briefly re- ferred to ; the practical importance of the matter war- rants a fuller consideration. Nearly opposite the hyoid bone, or the cephalic mar- gin of the larynx, each common carotid divides into an ectocarotid ("external ") and an entocarotid (" inter- nal "). In the adult they differ little in size, but may be distinguished in that (1) the ectocarotid branches at once and lies farther ventrad, while the entocarotid continues unbranched to the cranium and is accompa- nied by the vagus nerve. If the neck was severed close to the head the two arteries may be dealt with independently. If at the level of the chin (as in the head shown in Fig. 4684) the com- mon carotid may be followed up between the muscles, using the tracer rather than the scalpel as much as possi- ble. But if the neck is entire, and especially if it is to be kept so, the ectocarotid may be exposed as for surgical ligation by an incision along the ventral ("anterior") margin of the sterno-mastoid from the lobule of the ear. In any case the ligature must be applied close to the bifurcation of the common carotid or the superior thy- roid artery (Fig. 2430) may not be included. As to the vertebral artery, unless there are special reasons for not injuring the vertebrae, the transverse process may be nipped away in order to expose the vessel. The cannula is to be inserted in one, anil the other tied after the arteries have been cleared. Since the two arteries unite to form the basilar it makes no difference which has the Fig. 65.-Screw-capped jar ; see § 14, A. Fig. 66.-Specimen jar; see § 14, C. For sale by H. Landen- berger, 25 N. 13th Street, Phil- adelphia. escape of the injected liquid so as to obviate the danger of rupturing the thinner parietes under any pressure that might be required for filling the cavities. With animals the myelocoele (central canal of the spinal cord) is pervious through life. With a cat, for example, where 4 ctm. of the myel remained attached to the brain, alcohol injected into the diacoele (third ventricle) with a syringe escaped from the myeloccele in a stream 8 to 10 ctm. long, al- though the orifice of exit was 42 mm. from the tip of the metaccele and 66 from the place of injection. With human brains (excepting early stages when the myelo- coele would probably be sufficiently pervious) there is an ample outlet at the metapore (foramen of Magendie), described under " Meninges ; " the same may be the case with apes and some monkeys. Hence the cannula, in- stead of fitting loosely, may be tied into the infundi- bulum, or made large enough to tit it closely. In the latter case the cannula may need a rubber collar to prevent its entrance so far as to lacerate the medicommissure or parietes. This precaution may be rendered superfluous by using a cannula which is bent upon itself at a right angle, in the form of a capital letter L, turned one quarter way around thus, r- : the shorter arm enters the orifice, the longer rests upon the base of the brain and has attached to it the tube connected with the syringe or injection reservoir. This tube should be short and slen- der ; in the intervals of injecting it may be compressed, or plugged with a glass or cork.* Entoccelian injection, whether repeated or continuous, may be accomplished from any artificial orifice. The most favorable place is the aqueduct (mesocoele) after transection of the brain (§ 25, E); the cannula may be selected so as to fit it closely ; with the cerebellar por- tion of the brain the metapore would serve as the out- let ; with the cerebral it might be necessary to tie the infundibulum to prevent too ready escape therefrom ; with a small stream at a slight elevation above the brain it is probable that any excess would be provided for by oozing along the rima, f * In this connection, the writer cannot refrain from expressing his re- gret at the non application of this and other exact methods of preserva- tion and determination to the brain of Guitean ; see N. Y. M<d. Jour., February 23, 1S84, p. 206, and Amer. Jour, of the Med. Sciences, Janu- ary, 1883, p. 219. + Arterial alinjection of the brain is named or implied by Ecker ('•Cerebral Convolutions." p. 45). by Mondino {Trans. Koy. Micros. Assoc., 1885, p. 904), by Foster and Langley (" Pract. Physiology," p. 215). by Key and Retzius ("Studien." i.. p. 104), and by the editors of the tenth edition of "Quain," vol. iii., Fig. 88. It was done in 1863 for Marshall u|>on a Bushman [Philos. Trans., cliv., p. 501) ; the dates of its performance for Flower and Owen are mislaid. * At the writer's suggestion L-shaped cannulas were used last sum- mer in the preparation of sheep brains for the class in Physiology; the preparator, B. B. Stroud, succeeded in making these cannulas very small, and with the point slightly enlarged so as to be more securely' tied in the infundibulum. + For the exposition of the forms and membranous parietes of the en- cephalic cavities, nothing seems to promise better than the method briefly described under Figs. 4736 and 4751, a combination of arterial in- jection with injection into the medicornus opened by cutting off the lat- eral regions of the cranium and brain. 114 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Brain. Brain. cannula, excepting that there is some convenience in plac- ing it and the carotid cannula on the same side. § 18. Securing the Cannulas.-Preferably one cannula is to be inserted in the carotid, whichever is the longer, and another in the vertebral of the same side. Each is to be very securely tied ; if there is no shoulder at the can- nula point, then tie also around the rubber tubing at its base. All the knots should be the so-called " surgeon's," •one end of the thread being passed through twice instead of once ; " Anat. Technology," Fig. 41. § 19. Continuous injection necessitates, in addition to the means of supporting the brain mentioned in § 34, (first) an escape-tube (Fig. 4884) whereby the overflow may pass into the escape-jar, (second) some means of sup- porting the cannulas and tubes. The first requirement may be provided for by inserting a metal or glass tube in a hole near the top of a wooden pail, or, with a metal pail, having a tube set at that place ; in either case a rubber tube conducts the overflow to the escape-jar. The second end may be attained in •either of several ways: The metal pail shown in the figure has soldered to the sides several tubes serving as sockets for flexible wire " cranes ; " these wires (of lead, •copper, or unannealed brass) may be fixed by wooden wedges if they do not fit securely ; with a wooden pail they may be pushed into holes bored vertically into the rim. In either case the wires should be large and the free end beaten out rather thin, so as to be bent easily in the fingers about the tubes connected with the cannulas. Unless the operator has metallic screw-pinch cocks for regulating the flow, so small as not to drag undesirably upon the wire, he may secure the same end by fixing to .-another wire a wooden spring clothes-pin, by means of which the rubber tube may be compressed. § 20. Turning the Head.-There are reasons for believ- ing that the position of a head under injection should be changed daily, in order that no one region of the cerebral surface shall be more than twenty-four hours in close contact with the cranial wall. § 21. Repeated Alinjection.-It is probable that the in- jection of, say one litre of ninety-five per cent, alcohol, morning, noon, and night, for a week, would harden a brain very well, but accurate experiments on this point have not been made as yet under the writer's observation. If it be tried especial care should be taken to exclude air- bubbles (§ 22), to keep the brain wholly submerged or its base covered with a layer of absorbent cotton dipping into the alcohol. Such injections may be made con- veniently with an ordinary rubber-bulb syringe. Re- peated injection will conduce to the preservation of the coelian parietes and of the plexal attachments, but is less effectual than continuous for maintaining the size and form of the cavities. § 22. Exclusion of Air-bubbles During Arterial Injec- tion.-This is accomplished by letting the alcohol run until no bubbles appear either in the cannula or in a glass tube which is introduced near the can ; the can itself •should always be at a higher level than the adjoining tube, especially when it is lowered for the introduction of fresh alcohol, since bubbles are then most apt to be formed ; on this account the tube should be of ample length. § 23. Filtration. - Whatever liquid is to be injected into the encephalic vessels must be carefully filtered through filtering-paper, or through absorbent cotton crowded into the pipe of a funnel. This necessity ap- plies to unused alcohol as well as to that which has al- ready passed through tissues. § 24. Starch Injection Mixture.-Of the mixture first proposed by Pansch, the following modification has been ■devised by Professor S. H. Gage and the writer : Dry starch powder.... 100 c.c. Chloral hydrate 10 grms. Water 50 c.c. Alcohol (ninety-five per cent.) 50 c.c. Glycerine 25 c.c. Coloring matter. After thoroughly mixing the mass it should be filtered through one or two thicknesses of wet cheese-cloth. To (SUPPLEMENT.) prevent the starch from settling, the cloth should be tilted from side to side or the mass may be stirred during the filtration. If the mass is not freshly prepared for every injection, the stock mass should be filtered occasionally to remove hair or any other object that might clog the cannula. Among the colors that are available, probably ver- milion, red lead, ultramarine, Berlin blue, chrome orange, yellow, or green, are preferable. § 25. Removing the Brain from late Foetuses, Still-boms, or Young Children.-This is most conveniently done if the cranium and maxillary region are first cut away from the neck and mandible by cutting with coarse curved scissors from the corners of the mouth to the nape of the neck. The mass thus obtained is compact and may stand upright in liquid. A. Instruments and materials required. Coarse for- ceps ; coarse, curved scissors for bone; another sharp pair for soft parts ; tracer (Fig. 4880); nippers (Fig. 4881); large scalpel; narrow-bladed scalpel, preferably a probe- pointed bistoury;* four vessels, holding about two litres each ; two of water ; one of preservative ; one of satu- rated brine ; if the weight of the brain is to be ascertained (§ 36) the body should be weighed before the head is re- moved, and there should be provided a fifth vessel of normal salt solution (15 to 2,000). B. The scalp should be removed completely, together with the ears, and temporal muscles as far as the zygomas. C. Cranium and dura. In young subjects these adhere closely ; hence, contrary to what is recommended with adults, they should be removed together in pieces. With the tracer-point lift the united pericranium (ectal perios- teum) and dura near the left margin of the prefontanel, and with the scissors or scalpel slit the tough membrane so as to expose a little of the brain. Grasp the cut edge with the forceps and with the scissors cut out a piece including pericranium, dura, and intervening area of parietal bone. Continue in this way, using the nippers when necessary, until the entire left hemicerebrum is exposed. More and more care will be required to avoid injuring the delicate brain, either by the instruments or the cut edges of bone. Leaving the falx undisturbed, expose the right Iremi- cerebrum- in the same way, but with even more precau- tion and holding the head so that the left is more or less completely supported in the brine. D. Falx. Cut the veins that pass from the dorsal mar- gins of the cereltfum to the longitudinal sinus; they are more easily dealt with if the head be slightly tilted toward one side. From Vol. VIII., Figs. 4684 or 4711, recognize that at about the junction of the cephalic and middle third the falx extends only half-way to the cal- losum. Lift it with the forceps just enough to steady it and cut with the scissors. Draw the cephalic third cephalad and cut off. The caudal two-thirds may be steadied and cut as near as possible to the line of its junction with the tentorium, but must not be pulled upon on account of its connection through the falcial sinus with the velar veins. E. Transecting the mesencephal. Tilt the head cephalad. Cut the veins that pass to the dura from the sides of the brain and near the caudal end. With the scissors cut the vessels and connective tissue and mem- branes just caudad of the splenium (Fig. 4711) so as to ex- pose the gemina, the dorsal lobes of the mesencephal cor- responding to the crura ventrad (Figs. 4689, 4712, 4783). This is the narrow region connecting the wider cerebel- lar mass with the still wider cerebral portion, and hence called sometimes the isthmus. With the probe-pointed bistoury or sharp, narrow scalpel cut this just caudad of the conarium ; the knife should point almost directly at the tip of the nose if the pons is to be wholly avoided. * This is practically a longer and stronger syringotome (Fig. 4880), the cutting edge being about 5 ctm. (2 in.) long, ending in a probe point. The curve is less than that of the syring .tome. It replaces the syringo- tome in the dissection of the entire human brain, and it is particularly applicable to transecting the brain through the mesencephal, to tracing the medicornu and to slitting the pia in following the Sylvian or other deep fissures. 115 Brain. Brain. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. F. Cutting the nerves, etc. The cerebral mass is now held to the base of the skull by the mesal hypophy- sis (Fig. 4712) and by the paired optic nerves and olfac- tory crura and bulbs. The slender stalk (infundibulum) of the hypophysis is to be cut first ; then the firm fibrous optic nerves. The olfactory crura and bulbs are easily torn, but if care be taken to avoid pulling upon them the latter may be dislodged from their cavities with the blunt point of the bistoury or the tips of the scissors. G. Medisecting the cerebrum. The cerebrum now floats free, and ordinarily should be medisected at once. Remove the rest of the head to the normal salt solution. Steady the cerebrum by packing absorbent cotton about the base. Divaricate the opposed dorsal parts of the hemicerebrums till the white callosum is visible. Place the edge of the scalpel at the genu and with one sweep, steady and perpendicular, divide the callosum, fornix, precommissure, medicommissure, and conarium ; the halves will then fall asunder so that the chiasma and crura may be medisected.* H. The cerebellum, etc.-With the scissors cut the tentorium at its margins. Turn the head so as to expose the cranial nerves and cut them ; lastly, with the curved scissors divide the myel as far down as possible. Trans- fer to the salt solution. I. Weighing. From the pan of brine, each portion is to be transferred in turn to the salt-solution, and weighed according to the method described in § 36. § 26. Removing the Hemicerebrums Separately.-The following modification of the method just described has some advantages. After the exposure of the left hemi- cerebrum cut the veins as before. Let the head tilt to the left so as to oxpose the callosum. Divide it, as di- rected above, down to the base of the skull ; then the left half of the mesencephal ; then the infundibulum and optic nerve; and finally dislodge the olfactory bulb. These last parts are then to be attended to first on the right side ; the falx is easily removed, and the hemi- cerebrum comes out as soon as the veins are cut. The chief objection to this method is the danger of cutting the mesal aspect of one of the frontal lobes. § 27. When there are reasons for not mutilating the head, the removal of a child's brain is much less con- venient. The body and legs should be wrapped up so as to be held and turned easily. Unless the child can be held by an assistant, it will be found convenient to let it rest in a sort of trough, like a piece of large roof- gutter ; or to roll it up in a sheet of lead, which, upon pressure, will flatten so as to maintain any desired posi- tion. The tray or trough must be supported at a level with the rim of the vessel of brine, so that the head may liang over into it when desired. Needle and thread must be provided for sewing up the scalp. § 28. Ventral Exposure.-For some purposes, e.g., when the organ is to be kept entire, or when the nerve- roots are to be retained, the young brain may advanta- geously be exposed from the ventral side ; this aspect should be first studied, as shown in Figs. 4689 and 4711 ; then the base of the cranium may be nipped away, or cut with the coarse scissors ; it will be well to expose one side completely first, so that any errors detected may be avoided on the other. With care the hypophysis (Figs. 4712 and 4728) may be retained. This method is less applicable to adult brains, on ac- count of the thickness of the skull; this, however, may be softened by nitric acid ; Vol. VIII., § 6, note. § 29. On February 1, 1884, the writer removed the cranium of a small monkey (Midas, No. 342) by means of a dental engine, working a small saw and a burr. It may be predicted that in time the work now done laboriously with saw and nippers will be accom- plished more neatly and expeditiously by some ap- paratus like the electro-osteotome of Dr. M. J. Roberts, (SUPPLEMENT.) whom the writer is proud to claim as a former student and assistant; see Virginia Med. Monthly, March, 1887. When it is desired to inject the arteries of a subject after the removal of the brain, if the arteries (carotid and vertebral) cannot be tied or caught with serresfines, the regions in which they open may be filled with plas- ter-of-Paris. § 30. Removing the Adult Brain.-Portions of the operation are described in Vol. VIII., p. 199.* The writer is confident that whoever once adopts the plan of making a second sagittal section of the calva, one to two centi- metres from the meson, will never again attempt to re- move the entire calva in the customary fashion. A. Saw. There is no special advantage of the ex- pensive surgical or anatomical saw over the ordinary carpenter's instrument; it should be thin-bladed, fine- toothed, kept sharp and well-set, and used for no other purpose. B. Supporting the brain in brine. Although decid- edly firmer than in infancy the adult brain should never- theless be supported in brine during the later stages of its removal ; this is particularly essential if the organ is to be removed entire. The brine should be in an ample vessel, and, if wret- ting the floor is to be avoided, should stand in a pan or tray. The head is to hang over the end of the operating- table ; the vessel of brine is therefore most conveniently placed upon a revolving stool (like a piano-stool) or in a firm chair with some low boxes or thick pieces of board whereby it may be raised or lowered according to the position of the head. C. The longitudinal sinus should be slit to let out the- blood, unless the calval dura is to be removed entire ; usually, notwithstanding all precautions, the saw has- cut the dura at some point. There-or at any other point - commence with the scissors or probe-pointed bistoury, and cut the dura along the line of the cranial edge first on one side. The head and entire body must now be turned so that the hemicerebrum is supported in the brine. When the dura of the other side is cut the falx may be cut near the cephalic end. In lifting it ob- serve the precautions mentioned in connection with the foetal brain (§ 25, D). The transection at the mesence- phal gives no special difficulty beyond the weight of the cerebrum and the tendency of the head to assume unde- sirable positions; an assistant is wellnigh indispensa- ble. The extraction of the cerebellum, etc., is practically the same as with the young brain (§ 25, II), and is de- scribed in Vol. VIII., p. 199, § 67. § 31. By Removal of the Occipital Region of the Cra- nium.-At the meeting of the American Neurological Association, June 22, 1883, as reported in its " Transac- tions," p. 84, as reprinted from the Journal of Nervous and Mental Disease, July, 1883, Dr. Spitzka described as follows a method which, he informs the writer, he has known to be employed by some German anatomists. The writer has not tested this method personally, but is disposed to regard it as better adapted to pathological than to anatomical purposes, and as such entitled to be considered in connection with the usual method, and with that described in Vol. V. of this work, pp. 789-791. " The scalp is divided in the median line, beginning a little in front of the coronal suture, and extending down the neck. If it is desired to remove the spinal cord the incision is extended to the lumbo sacral region. Two lateral flaps are formed in the head region, the soft parts being peeled from the dorsal aspect of the cervical vertebrae and the posterior half of the skull. A circular incision is made [with the saw] in the skull, behind the ears, and completely encircling it down to the foramen magnum, care being baken not to injure the connection between the articular processes of the atlas and the occipi- tal condyles ; the posterior half of the skull is removed exactly as the calvarium ordinarily is, by taps of a chisel ; sometimes a rongeur forceps suffices to complete the division near the foramen magnum. The adhesion about the lateral [and longitudinal] sinus and torcular Hero- ♦ Contrary to the suggestion in Vol. VIII., p. 196. § 19, it is probable that the best result may be obtained by dividing the callosum first and the chiasma last; if the operation is performed in a long vessel of satu- rated brine, so that parts do not tear by their own weight, even the tender medicommissure may be cut before it yields. * See Dr. W. W. Gannett's article in Vol. V., pp. 789-790. 116 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Brain. Brain. (SUPPLEMENT.) phili can be readily overcome by a home-made apparatus like the knife [spatula, or round-pointed knife, curved flatwise] shown by Professor Wilder. The advantages of this method are : 1, The spinal cord and brain can be demonstrated in continuo; 2, the critical operation of lifting the hemispheresand gouging out or injuring the cerebellum in dividing the tentorium is obviated ; 3, the nerves and arachnoidal laminae at the base may be divided without allowing the brain to drag by its own weight. These nerves are divided from behind, forward. As soon as the chiasm is divided, the skull is inclined a little, and the brain allowed to fall into the hands of the operator by its own weight, it being completely separated, except where the olfactory filaments pass through the ethmoid ; but these yield readily, and I have gotten the olfactory bulb intact as often by this as the other method. The removal accomplished, the occipital segment is riv- eted back, and a stick of wood inserted in the spinal canal and extending to the cranial interior restores the strength to the head support, impaired by the breaking up of part of the vertebral attachments." § 32. The method of Fere (as briefly described in a paper " Procede de coupe du crane," Soc. Anat. de Paris Bulletin, it, 206-207, March, 1877) is by a circular in- cision very low down from the eyebrows ventrad of the auditory meatus to a point between the foramen magnum and the dorsal arch of the atlas. This, if successful, would uncover the brain very fully and permit its re- placement in the calva after extraction ; but it seems in- evitable that the petrous bones should give trouble as well as be themselves destroyed. § 33. Hemoval in the Dura.-Space will not permit de- tailed directions for removing the brain in the dura ; suffice to say that with care and patience and anatomical knowledge it may be accomplished so that only a small part of the dura is absent from the central region of the base. For the safe handling of the brain and for alin- jection purposes even the dorsal half of the dura is worth saving. § 34. Supporting the Brain for Injection.-If the dura has been retained, at three places upon each side, frontal, temporal, and cerebellar (or occipital if the metepen- cephal has been removed) pin to the dura pieces of broad, stout tape (or strips of cloth 2 to 3 ctm. wide) 10 to 15 ctm. long ; in place of pins there may be used gar- ment clasps with serrated edges. § 35. For temporary purposes, e.g., examination of the base, preparation for injection, and the single injection ■of amass, etc., the brain, supported as directed in Vol. VIII., p. 195, §§ 10 and 11, may be steadied and raised or lowered as required, within any vessel of appropriate size ; if of wood, the strips of cloth may be secured by tacks (artists' ' ' thumb tacks " are most convenient) ; if of glass or metal then an elastic band (e.g., a rubber ring from a jar, or an elastic tape) may be stretched about the rim and the strips passed under it. § 36. Weighing the Fresh Brain.-One method is de- scribed in Vol. VIII., p. 198, §50. There the brain is added to a pan of liquid already balanced upon the scales. After recording the weight required to balance the added brain, then-having first wet the hands with a liquid identical in composition with that in which the brain is immersed-remove the brain and record the loss of weight. Theoretically it should be the same as had to be added before ; practically there is usually some differ- ence, and the average of the two should be taken as rep- resenting the true weight. In employing the first method, some trouble will be avoided if, after the pan of liquid has been counter- poised upon the scales by an approximately equal weight, say 500 or 1,000 or 1,500 grammes, the exact balancing be accomplished by removing or adding liquid with a syringe. § 37. Determining the Volume of a Brain.-This is done as with any other mass, in either of two ways. A. Into a vessel of accurately known capacity pour a given volume of liquid ; dip the hands in the same, and transfer to it the brain ; then, from a graduated vessel add enough more of the liquid to fill the first vessel. The difference between the total capacity of the vessel and the sum of the two volumes of liquid introduced rep- resents the volume of the brain. B. Set a vessel in a deep pan, dish, or pail. With any liquid (salt-solution, water, or alcohol and water) that is lighter than the brain, till the vessel just to the brim. Let the brain into it gradually ; the overflow' will repre- sent its volume. Obviously a combination of the two methods is most satisfactory. § 38. Storage of Ilemicerebrums.-The human hemi- cerebrum is a somewhat bulky mass, and may occupy a six by eight inch Whitall & Tatum jar (Vol. VIII., Fig. 4883) ; sometimes both halves of a cerebrum may be ac- commodated, although the undivided cerebrum or entire brain commonly requires a nine by eight inch jar. The most favorable method of storing several hemi- cerebrums is in jars nine inches in diameter and of any desired height; the specimens are set in tiers of three, their dorsal convexities against the sides of the jar ; successive tiers are so placed that a hemicerebrum rests upon the interval between two below. There will be a central vacancy which, if the jar is to be transported, may be filled w ith absorbent cotton ; the alcohol (ninety- five per cent.) should be introduced last. § 39. Hemoval of the Pia.-The early removal of the pia* is recommended in Vol. VIII., p. 196, § 33. The writer has seen some otherwise valuable cerebrums ma- terially injured by faulty methods, and offers here a few suggestions. A. Begin with the central fissure, if it can be recog- nized, and at about the middle of its length. Apply the coarse forceps so that their approaching points move in the direction of the length of the fissure ; pinch up a fold of pia ; with the scissors snip at either side of the fold so as to raise it a little ; then carry the forceps, held in the same way, more deeply into the fissure, not more than one centimetre deep, and attempt to draw out the intra-fissural fold of pia. If successful, continue to pull lengthwise of the fissure, cutting the pia at either side w henever necessary. Most of the other fissures may be dealt with in the same way ; but some, notably the occipital and calcarine, are very deep, and arteries traverse them which must usually be cut more than once. The Sylvian fissure is not only deep, but spreads lat- erad over the insula, and there are several arteries. Rather than run the risk of tearing the adjoining gyres it is better to remove only so much pia as easily sepa- rates, leaving the rest and the arteries until one of the operculums can be cut off and afterward replaced. While removing the pia or studying the lateral fissures of young or foetal brains, breaking is avoided and divari- cation of the gyres facilitated if the hemicerebrum is placed on its meson on a piece of thick Manila paper (such as is used for the portfolios), which is sufficiently firm to support the organ and yet yields so as to permit the exposure of the fissural depths. When the mesal surface is studied the specimen should rest in a thick bed of cotton. § 40. Prevention of Drying.-The strong alcohol in which brains are preserved (eighty per cent, and upward) evaporates rapidly while the brain is exposed, as in ex- amination or dissectidn ; it may be dipped in the alcohol occasionally, or-which is preferable with delicate speci- mens-the alcohol may be allowed to drip gently upon it from a pledget of absorbent cotton. When a specimen only partly submerged in alcohol has to be left for a short time, drying may be prevented by covering it with a thin layer of cotton, one end of which dips into the liquid. § 41. Labelling Specimens.-Much of the real value of a specimen depends upon its identification as being a cer- tain part of a certain brain, taken from an individual of a certain age, sex, and nationality, and preserved in a certain way. Even if the possessor has so few specimens that he feels sure of remembering the entire history of ♦ It is understood that this includes the arachnoid, which on most parts of the cerebrum adheres closely to the pia ; Vol. VIII., Fig. 4687. 117 Brain. Brain. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) each, his death would abolish the source of information. Hence every specimen should be labelled in some way. In Vol. VIIL, p. 198, §§ 55, 56, the method was briefly indicated. Since that volume appeared the writer has observed surprisihg instances of carelessness in this regard, even upon the part of some who should set an ex- ample of scientific accuracy. Were the specimen never to be removed from the jar in which it alone is kept, the object could be accom- .plished by inserting the label in the jar or attaching it thereto; but this is rarely an adequate precaution, neither is it often possible to state all the desirable data upon a label attached to the specimen itself. The most satisfactory plan tried by the writer is the adoption of a serial number for each brain. This number corresponds to a list or catalogue (Vol. VIIL, p. 198, § 56), and is af- fixed to each brain and to every separated part thereof ; that is, the first brain obtained or prepared is numbered 1, and all its parts, when separated, bear the same number, with the addition of letters a, b, c, etc., when there is (which is very seldom) any chance of non-recognition of the nature of a fragment. These numbers may be writ- ten with lead pencil (not common ink), and last for some time if not handled ; but if written with India ink (or- dinary drawing ink, with an equal volume of water), on good paper or parchment, they are permanent. The label may be affixed by one or two small pins.* For purposes of dissection, photographing, or drawing it may sometimes be necessary to remove the label, but ordinarily it should be affixed to some other region, so that there may be no possibility of misplacement. § 42. Distinctive Labels.-The ready recognition of brains belonging to groups may be provided for as fol- lows : A. The sexes are distinguished by using quadrangular labels for males and circular ones for females. B. Presumed normal white brains have white labels ; Africans (of all shades), gray; murderers and other criminals, red ; insane and idiots, blue. § 43. Dissection of the Brain.-As commonly practised this contrasts strongly with the examination of the rest of the body. With the latter, dissection is universal, and sections are seldom made or even studied ;f but with the former, sections, macroscopic or microscopic, are the rule, and dissections, careful, prolonged, and thorough, are nearly unknown in medical schools. Like the prepon- derance of osteology over neurology, the difference is due to the "nature of things;'' but like many other natural conditions it may need modification. The advantages of sections for surgical, pathological, and regional study are obvious ; they are easily made, even with the fresh adult human brain, especially by means of the apparatus devised by Professor Dalton, t If the human brain were like that of the frog or opos- sum, with the several segments of approximately equal size, and nearly upon the same plane, the common method would be more appropriate for macroscopic study. But, in view of the extreme cranial flexure and the overlapping of certain segments by others, the objec- tions to sections are as follows : 1. They present plane surfaces which do not naturally exist in the brain. 2. They are almost invariably oblique with respect to the axis. 3. They always include more than one encephalic seg- ment, and are therefore, so far as the beginner is con- cerned, apt to be more confusing than instructive. 4. They present the parts in contiguity rather than continuity. § The foregoing objections apply to all sections. A macroscopic section, especially of a brain which has had the cavities alinjected, presents the advantage of exhibit- ing in perspective enough of the natural contours of parts to facilitate their recognition and comparison. Admitting, then, that sectionshave their uses, what is urged is, not that section-making be practised less, but dissection more. § 44. Preliminary Dissection of Alcoholic Brains.-In the article in Volume VIII., § 34, this is recommended in a single line. The writer is yearly more convinced of its importance on three grounds : A. The brain is a complex organ and at the best per- plexing ; the simpler features of form, location, and relation to cavities are morphological, while color, like histological composition, has a physiological significance. B. The fresh brain is less easy to dissect neatly, and requires constant support against its own weight, whereas the alcoholic may be held in any position and carved like cheese. C. The beginner should advance cautiously, and there- fore slowly, and the medical student is especially liable to interruption. The fresh brain remains fresh but a very short time, while the alcoholic is in itself imperish- able. Leisure means not only more carefid dissection, but also the taking of notes and the making of drawings ; hence all the arguments which the writer has advanced ("Anatomical Technology," pp. 55, 56), in favor of pre- liminary anatomical work upon a small animal, which may be kept in alcohol for an indefinite time at slight ex- pense, apply to all alcoholic brains in general, and to those of moderate size in particular. D. After repeated dissection of alcoholic preparations, the anatomist is better qualified to manipulate the fresh brain and to appreciate its beauty. The last word is used advisedly, for, however unattractive may be "subjects"' and pathological "cases," the most exacting artistic sense can hardly fail of satisfaction with the soft white and gray and pink of the newly extracted brain. Resting securely in its calva, for him who has been disciplined by prolonged experience with the "pickled" organ, there are few more attractive, stimulating, or nourishing articles of intellectual pabulum than a fresh brain " upon the half shell." § 45. Dissection.-Whether fresh or hardened, the writer believes the first step should be to slice off the dorsal parts of the cerebrum to near the level of the callo- sum and the next the exposure of the paracoeles as de- scribed in connection with Fig. 61 ; compare Vol. V., p. 790. The occipital lobes may then be cut off opposite the splenium and one or both medicornus followed to the tip of the temporal lobe. The next object should be to remove the overlapping parts of the cerebrum from the subjacent diencephal (and so much as may remain of the other segments) so as to obtain a view of the ventral aspect of the splenium and fornix. These may be transected a little caudad of the portas. There will then appear the velum, with the conarium. If the velum be lifted carefully there will be recognized the attachments along the dorso-mesal curvature of the thalami which are commonly ignored but insisted upon in Vol. VIII., Fig. 4751. A transection through the portas will give a view of their boundaries, of the cephalic aspect of the medicom- missure, and of the caudal surface of the fornix and the precommissure; most of the other features are more easily examined upon the mesal aspect of the medisected brain. Somewhat full directions for dissection are given by Edinger, in the first part of Leet. III. Complete direc- tions are desirable, accompanied by figures indicating the appearances presented at each stage, such as the writer has framed for the brains of the cat (" Anatomical Tech- nology") and sheep (" Physiology Practicums "). * The ordinary pins are apt to corrode, more or less, and discolor the brain, or tear it when removed. It is to be hoped that pins of alumin- ium may ere long be available. + Notwithstanding the example and opportunity offered by works like Braune's " Atlas of Topographical Anatomy " and Dwight's " Frozen Sections of a Child " and " Anatomy of the Head." t Topographical Anatomy of the Brain. Philadelphia. 1885, vol. i., pp. 4-10; abstracts in N. Y. Med. Record. February 15, 1879 ; July 31, 1880. § Solly's vigorous reprobation refers particularly to horizontal slicing: "It is unfortunate indeed that candidates for the medical diploma are still very generally required to describe the appearances presented by the brain dissected, or rather destroyed, by the old method of slicing-a method most unphilosophical in its conception, and totally inadequate to impart any real information in regard to the structure of the brain." 118 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Brain. Brain. (SUPPLEMENT.) § 46. Methods of Representing the Brain*-The follow- ing considerations and suggestions f apply more or less directly to all natural history illustrations, but with especial force to the human brain, on account of its soft- ness when fresh, the difficulty of preserving it, the great size of the entire organ, the minuteness of certain por- tions, the large number of recognizable parts within a small area, the continuity of all, the contiguity of some which are otherwise associated but remotely, the inter- mixture of two differently colored substances, the com- plicated relations of the meninges to each other, to the vessels, and to the cavities, and the preponderance of curved and oblique contours over straight lines and planes. § 47. Importance of Orientation.-With all organs, but especially with the brain, it is essential that the loca- tion of the region represented be easily recognized ; other- wise details may be unappreciated or even misappre- hended. So far as possible, therefore, less familiar parts should be accompanied by such as are unmistakable. It might seem that useless expense was incurred by the publishers of Bourgery and Jacob's magnificent plates in the introduction of faces artistically drawn and col- ored ; but even the expert neurologist is guided in the comprehension of the relative position of brain parts by reference to the apparently superfluous facial outlines. § 48. Enlargement of Complex Regions.-It often hap- pens that the same section or dissection includes regions that are comparatively simple, and others that are very complex ; shown upon a single scale, either the com- plex parts are unintelligible, or the total is undesira- bly and needlessly large. Hence, just as the histologist aims first to obtain a general view of all the parts in their gross relations, and then focuses a higher power upon a selected region, so the representer of encephalic struct- ures should give first a view of the whole, if only an outline, and then an enlargement of complex parts to any extent required for their complete elucidation ; he can hardly make this enlargement excessive. Compare, e.g., Quain's figures, 258 and 290, and Figs. 4740 and 4742 in Vol. Vtll. of this work. § 49. Terminal and limiting parts, membranes, and ap- parently atelic (functionless) parts and conditions should be distinctly shown, or the insufficiency of their represen- tation admitted. " The little things of the brain " might well form the subject of an entire article. From the stand-points of physiology and medical practice such parts as the terma, valvula, crista, conarium, hypophy- sis, and habena, and such conditions as the reflection of the endyma upon the plexuses, and the dorsal limitation of the porta, are of comparatively slight importance ; but their morphological significance is, at least in some cases, inversely to their functional activity, and they cannot be ignored without endangering the success of any attempt to understand or explain the structure of the brain. Anatomical figures should be something more than pict- ures conveying a general and vague idea. Where is there an adequate representation of the relation of the di- atela to the habeme, and of the cephalic end of the latter ? From the published figures could any student be ex- pected to comprehend the locations and boundaries of the " foramina of Monro " or of " Magendie ? " The tenia is easily enough shown as a white band throughout most of its course, but where are its extremities accurately de- lineated ? Anyone can see the caudate prolongation of the striatum, but representations of its termination at the tip of the medicornu are as nye as are figures of the ex- tremity of the filum terminale. Even so considerable a part as the flocculus is' seldom figured in such a way as to display either its form or its attachment. The avoidance of the morphological incongruities and deficiencies which are to be detected in nearly every por- trayal of encephalic anatomy demands the admission of three propositions, which are mere truisms in them- selves, but radical affirmations when contrasted with their almost universal non-recognition in anatomical works : 1. Every part, organ, membrane,* or surface is either limited or continuous with some other part. If limited, its limits must be defined ; if not, its extension must be indicated. 2. Every cavity is either open or closed. If closed, the continuity of its parietes must be demonstrated ; if open, its communications must be shown. 3. Every elongated part has a middle and two extrem- ities ; not only the former but the latter must be repre- sented. § 50. Figures - original ones especially - should be ■ multiplied and descriptions reduced. In descriptive anatomy, whether human or comparative, the text should be subordinate to the illustrations. Some treatises (Charles Bell, Meckel, Milne-Edwards, etc.) seem to have been prepared upon the idea that the description is essential and the figures merely supplementary ; chi the contrary, words should be employed only when pictures will not suffice-that is, for explanation, commentary, generalization, hypothesis, and manipulative directions. The arguments for the multiplication of figures may be summarized as follows : 1. A figure is usually a guarantee that something like the object represented has been seen, at least by the artist, and that a certain amount of time has been devoted to its contemplation. 2. The information conveyed by a figure is more real, and likely to be more lasting than that which is expressed in words. In respect to reality and impressiveness, the sources of knowledge may be ranked as follows, in an ascending scale : (1) Description ; (2) picture ; (3) model; (4) object seen ; (5) object handled ; (6) object personally prepared. The picture is thus intermediate in value be- tween the thing itself and a description thereof. 3. A figure, if clear and properly placed, is more read- ily understood than a description, and a saving of time is thus effected. It may be easier for the author to write than to draw, or even than to supervise a drawing, but his personal inconvenience or loss of time should not out- weigh the gain to his readers. This applies particularly to dictionaries, cyclopaedias, and journals, which are commonly read or consulted in haste. Editors and pub- lishers would find eventual profit in offering to authors the fullest encouragement to employ illustrations so far as possible, and curtail their descriptions in proportion. That it is rather the exception than the rule for such en- couragement to be offered is probably due to several causes : a, Publishing houses have usually a staff of print- ers who must be employed, whereas the various pro- cesses involved in the making of pictures are common- ly done outside at extra expense; b, authors too often content themselves with carelessly made copies of "stock figures'' instead of insisting upon original representations of objects prepared by themselves. Hence, on the one hand, the exceptionally liberal publisher is liable to get a poor return for any allowance made for drawings, and, on the other, the exceptionally painstaking author is apt to be told that, at best, the engraving will be done if he will furnish the drawings ; and, if he cannot draw him- self, their cost is likely to deter him from their introduc- tion.! In short, all the existing conditions work to the disadvantage of the reader, who gets but a " penny- worth of [pictorial] bread to a monstrous deal of [verbal] sack." Before this state of things can be amended the au- * Every student of any branch of Natural History should compel him- self to learn to draw, however slight may be his inherited artistic capac- ity ; not merely the laboratory students in Cornell University, but the members of the large general classes in Physiology and Zoology are required to make drawings of entire animals, and of the parts exposed in their dissections. t The treatment of this subject is based upon the writer's " Cartwright Lecture," III., as reported, with illustrations, in the N. Y. Medical Jour- nal, June 14 and August 2, 1884. * So essential is the exemplification of coelian circumscription and en- dymal continuity, that the endyma should be represented by a distinct and rather heavy line, continuous excepting at the metapore; see Vol. VIII., Fig. 4711. t The liberal provision of the publishers of the Reference Handbook for original illustrations of the writer's articles in Vol. VIII. has been ac- knowledged therein on p. 107 ; they have since manifested what might almost be called an unbusiness-like generosity in furnishing the writer with electrotypes of many of the cuts for the use of his students. 119 Brain. Brain. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) thors of books and papers must see clearly the impor- tance of illustration ; to paraphrase a witty saying as to the making of an index, the drawings should be made or personally superintended by the author, even if some one else has to write the text. 4. Figures usually occupy less space than descriptions conveying an equal amount of information. This means condensation, convenience, and economy in the present, and a due consideration for our successors in the not far distant future. Exact data are not accessible, but no thoughtful and public-spirited person (unless he be a publisher or printer) can contemplate without concern the logical results of the present rate of book-making activity. § 51. Borrowed figures should be fully credited, and all modifications, whether of size or features, explicitly • stated. To copy is to compliment, but unacknowledged copying is theft, and unspecified change is misrepresen- tation. The ill-effects of omitting to state the source of a figure are two: 1, The originator loses credit to which he is justly entitled ; 2, the reader may be seriously misled by the apparent duplication of some really unique feature or the confirmation of an error. For example, in the representations of the meson of the cat's brain by Leuret (Leuret et Gratiolet, Pl. V., Fig. 2), the pseudocode (" fifth ventricle") is made even more extensive than in man, reaching almost to the splenium. The figure is reproduced, without credit or correction, in Mivart's "The Cat" (Fig. 129). Whoever remarks the coinci- dence in respect to the pseudocode, but fails to note that one figure is simply a copy of the other, may naturally infer that the feature in question is normal, or at least not anomalous. On the other hand, if informed that three of Mivart's figures (125, 126,- 129) were copied from Leuret, the student might conclude that the representation of the base of the brain (Fig. 128) was derived from the same source ; this would be most injurious to the reputation of Leuret, for the figure in question displays several feat- ures (the size and direction of the hypophysis, the dis- connected fissure on the temporal lobe, the relations of the pons to the trigeminus and abducens nerves) which it is safe to say never were observed in a feline brain. Nor is it enough to give the sources of figures in a list, or in the preface, as in Huxley's " Vertebrated Ani- mals ; " so great is the labor of preparing an original fig- ure that the acknowledgement of it should be equally as explicit as that of a verbal quotation. Finally, in the case of modified figures, it needs but a moment's reflection to see that nothing short of an accu- rate statement of the nature and extent of the alteration can insure full justice to the originator. § 52. Drawings should be made as notes. In many cases an outline * drawing, even if hastily made, would convey to the maker, or any one else, at a future time more prompt and complete information than could be embodied in writing covering the same space. But the general employment of sketches, in addition to words, or in place of them, can hardly be looked for until children are taught to draw the intelligible objects about them before they are drilled in the making of the-to them- unmeaning pot-hooks of the alphabet. § 53. Figures should be more frequently employed in preliminary or incomplete publication. Probably one of the reasons for the comparative infrequency of pictorial representations of normal, abnormal, and pathological structures, especially in journals, is the difficulty, often the impossibility, of preparing a detailed figure in time for publication. But this need not prevent the early ap- pearance of a figure, if only in outline, illustrating one or more points of greatest importance. § 54. Figures should be based upon photographs. Photography enables the anatomist to (a) record the ap- pearances of perishable specimens, or of such as are in course of dissection ; (b) insure the proper perspective; (c) save time and labor upon the part of the draughtsman, and thus either reduce the cost of the drawings or render a larger number attainable. It is seldom that a single anatomical preparation is so perfect as to display all that is needed, and yet present no superfluous parts; often, too, certain points are to be brought out with "diagrammatic clearness," others be- ing subordinated or omitted altogether. Hence, as a rule, the photograph forms rather the basis for the com- pleted figure, and two or more similar preparations may be required for the elucidation of all the desired feat- ures. * § 55. Figures should be placed so as to be most readily understood and instructively compared. In comparing pictures of two or more houses, ships, or stoves, the architect, shipbuilder, or dealer places them in such positions with regard to one another and his own eyes as may minimize the effort at mental trans- position. If asked the principle on which he acts, he will probably say that no principle is needed, that he simply follows nature, experience, and common sense. With few exceptions it seems to be reserved for those whose business is the contemplation of natural objects, who are credited with more than the average degree of intelligence, and who have at command the recorded ex- perience of centuries, to disregard a matter whose sim- plicity is equalled only by its importance. In most works there is an utter absence of system. Seldom, indeed, are symmetrical figures placed otherwise than with the meson coinciding with that of the observer, but even this would be less likely to confuse than the apposition of transections of a subeylindrieal mass like the myel with the dorsum above in one case and below in another.f The prevalent carelessness in this regard may be as- cribed to three sources: a, The still too common idea that illustrations are of secondary importance ; b, the fact that most figures have been copied and thus placed without regularity, as in the original ; c, some time and trouble are required to reverse them. § 56. General Rules for the Placing of Figures.- These rules are based upon a consideration of the whole subject ; there is probably no one of them to which exceptions may not exist ; but such exceptions should always have a well-defined reason and not occur through inadvertence. 1. Figures should he coadjusted so as to facilitate comparison with each other and with typical structures in normal positions. 2. The dorsal side should bb above. 3. Direct views are to be preferred to oblique, though the latter are at times indispensable ; e.g., Vol. VIII., Figs. 4740, 4776. 4. Symmetrical figures, or parts thereof, should be so placed that the meson is vertical, e.g,. Figs. 4688, 4689, 4698, 4770, 4772. 5. When there is no choice between the right and left sides, the latter should be represented; e.g., Figs. 4767, 4713. 6. Of medisected organs, unless there is special rea- son for choice, the mesal aspect of the right half is to be shoWn ; e.g., Figs. 4684, 47114 * A chief obstacle to the employment of photographs as a basis for fig- ures of brains and embryos has been the difficulty of supporting such delicate objects within range of the camera in its usual horizontal, or nearly horizontal, position. This obstacle is wholly removed by the pho- tographic table devised by Professor Gage and used in the Anatomical Laboratory of Cornell University since 1878. With this the camera may be readily adjusted to any angle, and brought into a vertical position so as to cover an object lying upon cotton, or in alcohol, or even alive in water. The apparatus is described and figured in Science. April 11. 1884. + The common disregard of uniformity in this respect was made the subject of a communication by a medical professor to the Association of American Anatomists at its meeting in December. 1892. J if the fuller discussion of this subject in the New York Medical Journal. August 2, 1884. be consulted, the following corrections should be made : Explanation of Fig. 57, last line, transpose antimesal and symmesal. Fig. 59. for antimesal read symmesal. Fig. 64, for symmesal read antimesal. * There is a general and almost unconquerable predilection for shaded drawings. However advantageous shading mav be in ordinary art as an element of finished pictures, and when merely a general effect is desired, in anatomical figures correct outlines are essential, and shading should be deferred until the last; otherwise it is too apt to " cover a multitude " of inaccuracies. 120 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Brain. Brain. § 57. Designation of Parts upon Figures.-The full technical names of parts should be given if possible.* From the purely artistic point of view, of course, any ■extraneous line upon a picture is a disfigurement. But if it be once admitted that the primary object of an ana- tomical drawing is to convey accurate information, then, unless the shaded figure can be duplicated in an outline (as in Tiedemann, Vicq d'Azyr and Dalton), there should be no sacrifice of the essential to the accessory. It may be a question whether the names should be upon the parts (as in Gray) or at the sides of the figure, and connected with the parts by lines (Gegenbaur). Upon the whole the latter method seems preferable, especially if the technical names are used. § 58. Abbreviations should represent technical terms ; they should be uniform throughout the work, and be placed at the sides of the figure. Four methods of designating parts by abbreviations have been employed: 1, By numbers and unsignificant and ununiform letters, which may or may not be ex- plained in the text (Owen) ; 2, by unsignificant characters, uniform only in part, and explained at a distance from the figure (Reichert) ; 3, by uniform and significant, but partly vernacular, abbreviations (Parker): 4, by uniform technical abbreviations (" Anatomical Technology"). The advantages of uniformity in the use of abbrevia- tions are obvious, but it is by no means easy to avoid the charge of ambiguity. Where uniformity is not attempt- ed, care should at least be taken to avoid the use of the same abbreviation for the names of parts which are liable to be taken for one another. For example, in Schwalbe's two representations of the lateral aspect of the crura and adjacent parts (Figs. 280, 281) not only are opposite sides shown for no good reason, with some differences of •detail which are puzzling rather than instructive, not only is the pons designated in one by p and in the other by po, and the tractus opticus by to in one and tr.o in the other, but the letters tp stand for the taenia pontis in Fig. 280, and in Fig. 281 for the tractus peduncularis transversus [cimbia]. Since these parts are similar in general appearance and direction, and only one appears in each figure, it is doubtful whether any but the most expert anatomist, thoroughly familar with this somewhat obscure region, could escape at least a temporary mis- apprehension. § 59. Abbreviations should be explained in alphabetical order. The ''practical " business man would exclaim, " Of course, how else should they be ?" An " unscien- tific" child would adopt the alphabetical order with letters as he would the order of notation with numbers. But the super-scientific writer, especially if he be a Ger- man, scruples not to save a few moments of his own time at the expense of others, by giving the verbal equiv- alents of ten (Huxley, Fig. 19), fifteen (Balfour, ii., Fig. 271), twenty (Quain, Fig. 263), twenty-five (Schwalbe, Fig. 279), or even forty (Meynert [Stricker], Fig. 253) ■abbreviations, either in no recognizable order at all, or as they occur upon the figure.} The time wasted by each ■consulter of the figure (not to mention the effect of just indignation) would nearly equal what it would have cost the author to place the abbreviations in alphabetical sequence. Burt G. Wilder. BRAIN, TUMORS OF THE. The article on tumors of the brain published in Vol. I. of the Reference Handbook was completed on the very eve of an impor- tant epoch. It was in 1884, and this same year an Eng- lish surgeon, Mr. Godlee, performed the daring feat of opening the cranial cavity of a man affected with a tu- mor of the brain, and removing the neoplasm. The patient died at the end of a month ; nevertheless he sur- vived the immediate effects of the operation, and was also relieved of the headache, vomiting, and epileptic (SUPPLEMENT.) convulsions which had been the most distressing symp- toms of his disease (see Case 1 of table). Between this date, November 25,1884, and the present writing, January, 1893, the operation of trephining for brain tumor has been performed eighty-five times. These cases have been arranged in chronological order in the table commencing on next page : * The intellectual, philosophic, and even romantic inter- est attaching to the operations for brain tumors much exceeds their actual practical importance. The attempt has been made to estimate this from analysis, not only of the operations which have been performed, but also of the fatal cases of brain tumors on record, not operated, but submitted to post-mortem examination. The latter has shown that a very large proportion -would have been inoperable, either because a local diagnosis could not have been made, or because the locality, though diagnosed, was inaccessible ; or because the tumors were multiple or malignant; or, finally, because they were too large for extirpation. The last objection can often be met by the observation that an early operation might have proved successful, though by delay the tumor had grown be- yond the bounds of surgical possibilities. This observa- tion, however, holds good for tumors in any part of the body. Tubercular tumors-the most common variety by far in childhood-are frequently multiple, either at the time of operation or by recurrence shortly after ; and are then, of course, unfavorable for operation. For ex- tremely malignant tumors (carcinoma) the prognosis is naturally as hopeless when the growth is situated in the brain as when it exists in other organs. On the other hand, sarcomata, when primary, have not unfrequently been removed with success, f A table quoted by Keen, in the article on " Brain Sur- gery," in this Handbook, shows the relative proportion of different varieties of brain tumors in a total of five hundred and eighty cases collected by Hale White and Bernhardt. Nearly a quarter of all (twenty-three per cent.) were tubercular, only four per cent, were carci- nomatous. In twenty-two per cent of the cases cited the nature of the tumor is not stated. Hale White estimates that only nine of his one hun- dred cases could be considered as operable. No tumor, even the most benign, could be considered operable which is situated at the base of the brain, or in the cere- bral axis (Starr), which is widely infiltrated, or which, as already noted, is multiple. Out of three hundred brain tumors in children collected by Starr, one-third were in the cerebral axis. Tumors of the cerebellum are fairly accessible, but operations upon them have proved very much more dangerous than operations upon the cerebrum. The space for operation is much nar- rower ; precise localizing symptoms are much less dis- tinct, and frequently fail altogether. On the other hand, the general symptoms are especially severe, owing to the excessive intracranial pressure ; and this same condition endangers the operation by causing the brain to bulge through the opening. The close proximity of the affect- ed part to the most vital organs of the cerebro-spinal axis renders shock imminent. The tumor is very frequently tubercular, and finally optic neuritis has nearly always reached an advanced stage before the operation is under- taken, so that when, by exception, the patient has sur- vived the operation, he has remained blind.$ * Seventy-two cases were tabulated by Knapp more briefly in his mon- ograph on intracranial tumors in 1890. The table given in the text necessarily includes Knapp's cases, but has been compiled from the original sources, and contains more details than are given by Knapp. Horsley mentioned two more cases, at the International Medical Con- gress, of which he gives no details. Keen has two more cases, as yet un- published. + In the case reported by Weir and Amidon the cerebral symptoms occurred after the patient had already been operated upon for sarcoma of the neck (Annals of Surgery, June, 1887). t The symptom of choked disk, when present, has long been consid- ered more nearly pathognomonic than any other of cerebral tumor. Seguin has, however, recently declared that many cases of enormous tumors do not present choked disk, and, on the other hand, this ocular lesion occurs in persons who have no intracranial disease. "Indeed, in my experience as regards tumors of the hemispheres, the rule is that the optic nerves are normal" (Bost. M. & S. Journal/February 5, 1891). * This need not preclude using, in place of Latin terms, the paronyms appropriate to the language in which the paper is written ; e.g., for hippocampus, hippocamp (Eng.), Hippokamp (Ger.), hippocampe (Fr.), or hippocampo (Itai.). See Vol. VIII., pp. 530-531. + Almost equally objectionable is the omission of the original pagina- tion in reprints from periodicals. 121 Brain. Brain. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) No.of case. Operator, date, reference. 1 Time be- tween trauma and first symptoms or dura- tion. General symptoms. Localizing symptoms. Diagnosis. Operation. Situation and nat- ure of tumor. First result. Final result. Sex and age. Trauma or not. 1. Bennett and Godlee (Ltncet, Dec. 20, 1884). Macewen (Lan- cet, May 16,1885). Sci am an n a (Hull. d. R. Ac- cad. Med. di Roma, xi., 1885 ; Quoted by Knapp, " I n - tra-cranial Growths "). Hirschfelder and Morse (Pa- cific Med. a n d Surg. Journal, April, 1886). Man, 25 years. Male, 35 years. Male, 46 years. Man, 71 years. Blow on head. One year. Violent headache, dif- fused, for some months; severe monthly convul- sions eighteen months after blow, ceased eigh- teen months before oi>- eration ; double optic neuritis (v i s io n nor- mal) ; vomiting. Paroxysmal twitching left side face and tongue, first symptom ; aura on left side precedes general convulsion, this for two and one-half years ; pro- gressive paresis left arm, then twitchings left leg, then slight paresis left side face ; paresis arm most marked at shoulder. Left hemiparesis; right facial paralysis. Left hemiplegia ; later. Tumor upper third fissure Rolando. November 25,1884. At first no tumor found ; incision inch long into anterior central convolution. Trephined over Glioma, size of wal- nut, middle upper third right ascending convolution. Tubercular mem- Temporary recov- ery ; diminished headache, vomiting, convulsions ; paresis increased. Development her- nia cerebri ; then septic meningitis; death in one month. Recovery. 2. Injury to head in right frontal parie- tal region. Headache, vomiting, fainting, convulsions : slow pulse, somnolence. Dull, heavy pain, es pecially over occipital protuberance, vertigo ; increased tendon re- flexes ; optic neuritis both eyes, most on left, failure of vision in last three months; occasion- al convulsions, vomit- ing, hiccup ; totters on standing with closed right ascending fron- tal : mass removed. Trephined over scat of injury ; nothing found. February 15, 1886. Tumor excised,24 c.c. branous mass. Glioma right cen- Death in two days. 3. 4. right oculomotor and facial paralysis. Jerkings left face, arm; then paresis left arm ; drooping left side fore- head, corner mouth; left leg stiff and lame ; slight anaesthesia left trigem- inus. Tumor middle por- trum ovale, from right inferior cornu to corpora quadri- gemina. Soft infiltrating gli- oma middle portion right post, centralis gyrus. Death on eigh- teenth day of septic encephalitis. tion right post, cen- tralis gyrus ; pressure on parietal lobe (in- ferred from ancesthe- sia); posterior convol. also diagnosed, be- cause face, arm, and leg all involved. Fraser (Lan- cet, February 27, 1884). Durante (Lan- cet, Oct. 1,1887). Graeme Ham- mond (Medical Retos, April 23, 1887). Weir ("Annals of Surgery," St. Louis. 1887, with Amidon). Man, 44 years. I n j u head. None. ry to Headache, vertigo, vomiting, stupidity. Impaired memory; severe vomiting; move- ments uncertain : me lancholia, taciturnity. D6but in sudden loss consciousness. At time of operation, double choked disk ; exagger- ated reflexes; four or five epileptic attacks; agonizing headache,an- terior, on left side. Precipitate micturi- tion and defecation ; frontal headache: slight optic neuritis, left side. Right hemiplegia, with contracture ; indistinct speech, amnesic aphasia, agraphia. Anosmia one year: left eye displaced downward. Convulsions limited to left side; paralysis left face; gradual paresis, then paralysis left arm ; gradual paresis left leg. Cramps left leg, paresis left knee ; cramps and numbness lefthand ; nar- rowing left palpebral fis- sure ; paralysis left upper arm ; left patellar reflex exaggerated. Tumor of left as- Trephined ; noth- ing found. May, 1884. Dura Glioma left tern- Death. 6. 7. 8. cendir.g frontal con- volution. T u m o r anterior poral lobe, involving ascending convolu- tions ; second (?) tu- mor in middle right ascending parietal. Fibrosarcoma oc- Stitches removed Patient recovered 35 years. Illness, two and o n e ha 1 f years. Two months d oration symptoms. lobe; paralysis olfac- tory nerve. Tumor cortical or here perforated by tumor; drainage tube through opening made into ethmoid; enucleated. Operation ; tumor not found. Trephining; notu mor found. cupied anterior fossa cranium ; weighed 70 grins. Three cysts in a seventh day ; drain- age -tube fifteenth day. promptly ; still well four years after oper- ation. Death in twenty- 29 years. Woman, 26 years. Four pre.i- ous operations for sarcoma, neck. subcortical at motor centres. Tumor upper ex- tremity Rolandic fis- sure, one inch from median line. line in motor region of anterior central convolution, right side. Sarcomatous tu- mor from lower sur- face left lobe cere- bellum compressing medulla ; originated in pia, extended into spinal canal 10 ctm.; not continuous with cerebellum, Disappearance of headacheand spasms; temporary recovery. Hernia cerebri which increased to size of hen's egg. one hours. Death in ten weeks. 122 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Brain. Brain. 9. Horsley (Am. Male, 20 None. None described, ex- Cramps left thumb and Tumor at thumb Tumor removed Tubercular nodule Second day, pare- Comjilete recovery 10. Journal Med. Sciences, April, 1887). Horsley (Brit. Md. Jour., April 23, 1887). Ibid. years. Male, 38 years. Male, 37 None. cept frequent head- ache. Epileptic convul- sions ; semi-comatose for ten days before op- eration. Constant headache. forefinger; clonic oppo- sition twice daily for three months; then epi- leptic fits, always begin- ning with same clonic spasms ; conjugate devi- ation head andeyesto left; left lower limb drawn up ; paralysis left leg after a fit ; reflexes exaggerated in left arm. Convulsions began in left shoulder, followed by left hemiplegia. Gradually increasing centre; i.e., junction lower and middle thirds ascending pa- rietal convolution. Tumor involving upper part of middle third of Rolandic re- gion. Tumor in leftmotor with excision of sur- rounding tissue, June 21, 1886. at junction lower and middle thirds ascend- ing parietal convolu- tion. Infiltrating glioma, oz.. from shoulder centre as diagnosed. Tumor, 4 J oz.: sit- sis left buccal branch facial; paralysis left arm; fifth day, left hemianae s t h e s i a without analgesia; complete loss muscu- lar sense ; persistent exaggeration deep re- flexes. from epilepsy and paralysis. 11. None. Removed Decem- sciousness; mental state, normal for three and one half months; diminution paralysis ; patient walking in two and one-half months; no fits. in three months. Death in six months. No more headaches 12. Ibid. years. Male, 18 None. Headache, vomiting; optic neuritis; increas- ing weakness all limbs; epileptoid attacks; one year in bed. Frontal headache ; right hemiplegia; fits be- ginning in right forefin- ger ; slight defect of speech ; no fits for three months before operation. Left arm and leg espe- cially weak ; in fit conju- gate deviation head and eyes to right. Gait reeling backward and to left. For nine months right hemiparesis; paresis both external recti; dilated left pupil; intentional tremor right arm ; stag- gering, tendency to fall forward ; mouth to left; left conjunctival reflex lost; paralysis left eyelid; diminished faradaic con- tractility for all left side face. Unsteadiness gait; numbness right leg, hand, and shoulder ; left lateral hemianopsia. Depression over left parietal. Pain and spasms in right great toe. Paresis right leg. Paresis right arm; spasm tongue, face pla- tysma. cortex, involving hand centre, pressing on Broca's convolu- tion. Tumor in right lobe of cerebellum. Cerebellar tumor. ber 7, 1886. Removed Decem- uated as diagnosed. Tubercular tumor ; 7 drachms, as diag- nosed. Tubercle size of Died in nineteen or convulsions; hemi- plegia not cured, but progressed no fur- ther. 13 Bennett 'May (Lancet, April 16, 1887). Suckling (Lan- cet, October 1, 1887). Birdsall and years. Male, 7 ber 17,1886. Removal tumor. hours from shock ; chronic general tu- berculosis of viscera. Shock. Death. 14. years. Girl, 12 vomiting; amblyopia ; optic neuritis; nystag- mus ; abolition knee- jerks. Headache, vomiting; dimness vision two years ; diplopia for two weeks ; vertigo; double optic neuritis; nystag- mus ; diminished knee- jerks. Since 1885 vomiting; moderate headache; drowsiness; beginning neuro-retinitis; diplo- pia, transitory. Convulsions; dull Tumor left lobe Curved incision. pigeon's egg. At post-mortem tumor found occupy- ing all left lobe and much of middle lobe. Sarcoma occupied Shock. Death in forty - eight hours. 15. years. Male, 42 None. cerebellum, growing down, compressing left facial and both sixth pair nerves. Tumor on mesial convexity down- ward to base of left mastoid process; two trephine openings on line from occipital protuberance to tip of mastoid ; cerebel- lum bulged ; tumor inaccessible. March 9, 1887. Death from hem- 16. Weir ( Phil. Med. News, 1887). Markoe (Phil. Med. News, No- vember 5, 1887). Mace wen (Lan- cet, August 11, 1888). Ibid. years. Man, 25 years. Girl, 7 Injury to head. No record. aspect right occipi- tal lobe, involving primarily the cuneus, and perhaps para- central lobule ; loco- motion impaired from pressure on ten- torium. Trephining one inch above occipital pro- tuberance, one inch from median line; tumor too large for removal ; incised, softened contents re- moved. Operation over de- pression ; cyst re- mo v e d containing brain substance. Removal tumor. tip of right occipital lobe. Cyst hemorrhagic. Tubercle size of orrhage hours. in a few Recovery. Recovery. Recovery. 17. headache. Convulsions. 18. years. Male, 22 years. Injury to head. Removal. hazel-nut from top of left ascending pa- rietal ; tubercles in meninges. Cyst size of filbert removed from base of left ascending frontal. (SUPPLEMENT). 123 Brain. Brain. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. No. of case. | Operator, date, reference. Sex and age. Trauma or not. Time be- tween trauma and first symptoms or dura- tion. Genera) symptoms Localizing symptoms. Diagnosis. Operation. Situation and nat- ure of tumor. First result. Final result. 1!). Mace wen (Lan- cet, August 11, 1888). Syphilis. Left hemiplegia. Trephined over right parietal region; removed degenerated gumma. Trephined over Yellow mass over Recovery. 20. 25 years. Male, 29 years. Right hemiplegia; upper part right as- cend ing convolu- tions. Large hyperosto- sis. Recovery: still pionniere (Jour- nal de Med. et de Chir., lix., 1888). aphasia. left ascending fron- tal convolution ; re- moved tumor. partly paralyzed. 21. Rannie (Brit. Med. Journal, May 19, 1888). Von Bergmann (" Surgical Dis- eases of Brain," Woo d's Mono- graphs). Seguin a n d Black woman, 35 years. Man, 25 years. Male, 39 Syphilis, ter- tiary. Intense headache, Pain and tenderness Operation June 9, 1888. over right as- cending frontal con- volution : growth re- moved with piece of dura and brain tis- sue. Chiselled piece of skull 7x74 ctm.; cyst evacuated, communi- cating with lateral ventricle. Trephined, re- Degenerating gumma. Paresis remained. Recovery. Death in four 22. 23. eighteen months ; buz- zing in ears,' visual hallucinations : gloomy dreams ; alternated ex- altation and depres- sion ; convulsions. June 1, 1887. Epileptic attacks; headache ; debut with sudden apoplexy. Memory impaired for right frontal and parie- tal region ; in fit left an- gle mouth retracted ; conjugate deviation to left side ; left upper ex- tremity adducted : fore- arm flexed, wrist and fingers flexed ; left leg extended stiffly, clonic convulsions left arm and face, then left hemipa- resis face and limbs. Right hemiplegia and contraction motor apha- sia ; loss of muscle sense. Five years before oper- Tumor in Rolandic but steadily dimin- ished ; headache and fits ceased. None. region. Tumor, probably subcortical, in left hemisphere, involv- ing centre for face and partly for arm. Tumor pressing on anterior lobe, left hemisphere, involv- ing third frontal con- volution ; fibroma. Operation Decern- ber!5,1887. Incision through tender scar; enucleated tumor from fossa behind squamous bone. Sarcoma size of Temporary com- weeks from meningi- tis. Six months after 24. Weir (Am. Jour. Med. Sciences, 1888). Keen (" Trans. Am.Surg.Ass'n," vol. vi., 1888). years. Male, 26 years. Injury to head when three years old. Twenty years. two years ; no optic neuritis; mental ac- tion slow but accurate ; headache only recent- ly. General neuralgic pains, 1884 : violent epilepsy twice weekly, 1885 : severe pain in head ; pulse 60°. irreg- ular; anorexia; insom- nia ; two years before operation temporary blindness, first in right eye, then left; moder- ate headache; optic neuritis. ation spasm drawing right cheek and neck : epileptic attack three years later, preceded by twitching right forearm, hand: eight months be- fore operation paresis right arm : speech thick and slow : paresis lower facial; slight anaesthesia right cheek; numbness over right arm. Painful scar on left side head; paralysis right arm, then right leg, then right face ; right pupil dilated, insensitive; vision right eye imper- fect ; marked aphasia ; in fit. right hand closes tightly, first finger, then thumb; right deviates upward and outward; paresis right internus right eye, and of left in- ferior and superior recti; paresis inferior fibres or- bicularis on both sides ; vision right eye much re- duced : left, homonymous hemianopsia ; clonic con- vulsions, chiefly in right limbs; slight paresis right hand. moved tumor. Fibroma presented at opening; extend- ed from base third frontal convolution backward 2| inches to fissure Rolando, upward into external part, first frontal in- ternally to corpus striatum ; weighed 3 oz.; measured 74 in. in circumference. large almond within white substance, one inch below posterior edge second frontal and anterior edge precentral gyri; i.e., in fasciculus for face. First week, increased aphasia ; large clot f onn d in wound ; then disintegrated ; then aphasia dimin- ished. Second week, temperature. 104° F.; hernia; diarrhoea; abundant discharge cerebro-spinal fluid ; temperature normal by third week. p 1 e t e hemiplegia ; nearly complete aphasia; eight weeks after operation epileptic attack be- gun with twitching right side face ; aphasia diminished then increased again. operation in perfect health : slight hemi- paresis right side ; walk normal, knee- jerks normal both sides; sensibility normal : aphasia al- most gone. Recovery eighty- fourth day ; mind clearer; paralysis gone ; one epileptic attack in five weeks. (SUPPLEMENT.) 124 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Brain. Brain. 25. 26. 27. 28. 29. 30. Wille (Allgem. Wiener M cl. Zei- lung. December 18, 1888). Fitzgerald ("Sajous's An- nuare," Vol. 11., 1888, p. 36). Heath and lloss (Lancet, April 7, 1888). Mace wen (Br. Med. Journal, August 11, 1888). Pean (G nette den Hopitaux, February 21, 1889). Fischer (Ver- Woman, 4" yeai s. Girl, 16 years. Male, 20 years. Female. Man, 28 years. Male, 37 Dementia; difficult deglutition; inconti- nence urine and fueces ; disturbance speech; later, convulsions. Convulsions. Headache; optic neu- ritis. Headache ; dulness. Epileptic attacks six years, extremely fre- quent; temperature, 104° F. ; night before operation thirty-seven attacks status epilepti- cus. Vertigo, convulsions. Swelling over left pari- etal bone. After incision, paresis right leg, right facial, right mm. Amaurosis right eye ; partial paralysis (?). Left hemispasm ; left hemiparesis: tenderness of lower right ascending frontal. Orbital growth; nodule on skull half way between ascending frontal and anterior aspect ; spasm right face and arm ; myo- sis left pupil. Painful spasm right great toe ; stiffness right lower limb ; tonic, then clonic convulsions same limb; extension these to arm and face; not al- ways loss of conscious- ness. Paresis, then paralysis Tumor lobe. Tumor tie right tremity. parietal motor cen- lower ex- First operation, in- cised swelling ; no pus; later necrosis bone trephined; sub- dural pus evacuated ; no tumor found. Left temple tre pinned : contents of cyst evacuated. Trephined over tender spot; large adherent growth found; could not be removed. Trephined over no- dule ;t u m o r dura one-half inch thick removed. Operation December 7, 1888. Trephined at upper part left as- cending frontal and parietal convolu- tions; trephine just outside sagittal suture. Enucleated tumor without injury to brain. First operation Tumor, size pigeon egg, in front part left paracentral lobule, extending into up|ier part ascending pari- etal convolution; sec- ond smaller tumor in middle of ascending parietal convolution, both gliomata. Echinococcus. Tumorat post, half of opening; grows from dura over left ascending convolu- tions : fibro-lipoma (Pean): endothelioma (Cornil). Sarcoma pressing Death. Relief of headache. Recovery. Day after, only six fits. Afler first trephin- Recovery. Recovery. Died eight years later of nephritis. Two months after operation no more attacks. Death two months 81. 32. 33. 34. 35. handl. d.deuta'h Gesell. f. Chir- urg., 18th Con- gress ; also, "An- nals Surgery," St. Louis, 1889). Pilcher and Dana ("Annals S u r g e r y," St. Louis, 1889). Wood and Ag- new (Univ. Med. Magazine, April, 1889). Parker (Brit. Med. Journal, Nov. 30, 1889). Thomas ("Trans. Amer. Inst. Homreop.," 1889, p. 46 i). Lirnont and years. Man. 33 years. Man. Mm, 38 years. Woman. Woman, Thrown from carriage, -truck head, in 1882. Confinement. One year to first general symptoms Fourteen Irritable, childish ; apathetic after one year; general convul- sions, 1884. then petit mal ; severe frontal headache: mental im- pairment; double optic neuritis ; exaggerated reflexes. Vertigo, severe head- ache ; loss mental pow- er ; optic neuritis; loss equilibrium. Long-standing head- ache ; mental dulness. Headache; thick "neech ; no optic neu- ritis. Sudden unconscious- right arm; diminished sensibility ; paresis leg ; slight aphasia. In abortive attack, con- jugatedeviation head and eyes to left ; tonic spasm right arm and leg. Left hemianopsia. Total paralysis left arm: paresis left leg ; puffy swelling of scalp over right parietal eminence. Spasm left hand ; loss of consciousness; paresis left leg and face : paraly- sis and rigidity left arm. Spasms right arm ; nothing found; sec- ond, removed tumor piecemeal. Operation over seat of injury, angular gyrus ; no t u m o r found. Trephined over right cuneus; found and evacuated hem- orrhagic cyst. Trephining over swelling. Tumor re- moved with adherent dura. Suppuration on nineteenth day ; hernia cerebri re duced by mechanical pressure. Removed tumor weighing 3 oz. Portion large gli- on left central convo- lutions. Glioma in left oc- cipital lobe, extends to tip of left frontal, reaches lateral ven- tricle, island of Reil softened. Cicatrix had misled. Tumor right tem- poro-sphcnoidal lobe. Rounded gttmmous tumor size walnut under right parietal eminence. Middle Rolandic re- gion, pressing on but not involving convo- lutions. ing, convulsion, headache ceased; paralysis less; apha- sia increased after second operation; also recovery. Death from respir- atory failure. Total hemiplegia one day after first operation. Ten days afterward, second for suppuration. Total loss headache. Temporary recov- later from recurrence growth in dura. Death from hem- orrhage. Recovery on eigh- tieth day. Death in three days. Growth recurred. Page (Brit. Med. Journal, Oct. 26. 1889). 32 years. days. ness ; numerous con- vulsions. speech affected. oma removed (from lower part ascending frontal?) ery. (SUPPLEMENT.) 125 Brain. Brain. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. No of case. Operator, date, reference. Sex and age. Trauma or not. Time be- tween trauma and first symptoms or dura- tion. General symptoms. Localizing symptoms. Diagnosis. Operation. Situation and nat- ure of tumor. First result. Final result. ■ 36. Maunsell (New Man, 18 Headache ; vertigo ; Staggering to right; Trephined over Cyst of cerebellum Recovery,but blind- Zealand Medical Journal, 1889). years. vomiting; reeling gait; blindness:anosmia : convulsions; dilatation pupils; incontinence urine and fseees ; head and neck much swol- len ; eyes prominent : head retracted. convulsions begin with retraction head ; involve right arm and leg. cerebellum ; evacuat- ed subtentorial cyst. four inches long, two inches broad. ness persists. 37. Verco (Inter- colonial Medical Congress, A u s - tralasia, 1889). Boy, 11 years. Fall fr tree. o in Eight months. Pains in head ; screaming at night from pain ; tired sigh- ing ; three convulsions three weeks ago ; occa- sional vomiting; incon- tinence urine and fasces: tenderness head : dim- ness vision : pupils di- lated : sluggish ; double optic neuritis; head very large, 24 inches in circumference. Left palpebral fissure smaller; paresis left lower facial: hyperaesthesia right front chest: paresis left hand ; slight bulging right temporal and an- terior parietal region. Hydatid cyst from size of head, unilat- eral bulging, and paresis. Trephined over bulging region, inches above right meatus, 41 inches be- hind angular process. 3| inches from sagit- tal suture. Cyst over area 4x2; adherent to temporo- sphenoidal lobe; cen- tral convolutions dis- placed upward. Death from men- ingitis ; temperature 104° Fahr. 38. Mercanton and Coinbc (Revue M e d. de la Suisee, Aug. 30, 1889). Girl, 12 years. Blow by teacher's ruler over nose and forehead. Fifteen months. Headache first symp- tom : diminished vis- ion ; in two years atro- phy optic disks. Jacksonian epilepsy right arm ; no aura, no loss of consciousness ; temporary paralysis arm after attack: later right f we, then right leg in- volved, then aphasia af- ter attacks ; intentional tremor ; rotation head to right, no deviation eyes, tender point near bregma to right of sagit- tal suture. Tumor in middle left ascending fron- tal convolution, reaching superior third above, inferior third below, also to island Reil (from aphasia of transmis- sibility). No record. No record. 39. Kocher (Brit. Med. Journal. September. 1889, Correspondc ace from Berne). Choked disk ; ambly opia : headache ; stag- gering. Tumor of cerebel- lum. Operation to re- lieve pressure ; one opening posterior right side below ten- torium, one ante- rior on left side; ex- treme tension dura ; hernia cerebellum, removed with sharp spoon. In four days con- gestion disks disap- peared ; no improve- ment of sight. 40. Keen (Refer- encehandbook Med. Sciences. Art. " Brain Sur- gery," 1889). Boy, 4 years. Enlargement head ; double optic neuritis; amblyopia. None. Tumor cerebellum pressing on straight sinus, causing inter- nal hydrocephalus. Tapping ventri- tricles ; trephined 11 inch behind external auditory meatus (side not recorded), 11 inch above Reid's base line ; hollow needle and horse- hair 'drain intro dUced; drainage fifty- two days ; repeated probing brain ; irri- gation ventricles. Tumor cerebellum, with density same as brain. Diminution choked disks from day to day, but atrophy be- ginning. Death fifty-two days after first oper- ation. (SUPPLEMENT.) 126 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Rraiu. Brain. 41. Keetley (Lan- cet, 1889, vol. ii., p. 593). Child, 7 years. Fall. Fourteen days. Giddiness; stagger- ing ; vomiting ; knee- jerks exaggerated ; attack of collapse, fol- lowed by subnormal temperature. Slight internal strabis- mus left eye. insensibility; rigid- ity limbs, especially left arm ; ptosis right upper eyelid : vomit- ing one-half pint black fluid ; temper- ature 105.6° F. beath in two dayL tion through left squamous bone ; nothing found. three times natural size by infiltrating glioma ; no inflam- mation or abscess ; pons uniformly yel- lowish. 42. Maudsley and Fitzgerald (•'Trans. Inter- col. Med. Con- gress, 1889 "). Male, 28 yea: s. Headache; vomiting; vertigo, staggering; dim vision, blindness later; optic atrophy. Awkwardness, left side; anosmia, left side; dila- tation right pupil; slight paresis right facial ; ab- sence left knee-jerk; deafness left ear. Tumor left lobe Trephined over left lobe cerebellum; solid nodule found, not re- moved ; loss of much brain substance. Solid nodule fixed Recovery, with persistent blindness am! deafness. cerebellum compress- ing left facial and auditory nerves. to temporal bone. 43. Barton ("Ann. Snrg.,"St. Louis, 1889). Lampiasi (IFirn. Jfed. ,Mav 19, 1889; from Knapp, loc. cit.). Horsley (Brit. Med. Journal, December 6, 1890). [Paper read at Interna- tional Med. Con- gress, Berlin.] Ibid. (Three cases mentioned without details for record.) Knapp and Bradford (Bost on Md. and Burg. Journal, April, 1890). Woman, Syphilis; ne- crosis os fron tis ; a b s c e s s opened. S y m p - toms brain pressure developed after oper- ation on abscess. Lethargy; confusion; anxiety. Convulsions; optic neuritis; exophthal- mos. Epipleptic convul- sions ; attacks dysp- noea. Vomiting three months in 1886 ; paresis both hands 1887, then convulsions ; in 1888, headache; double optic neuritis. Incomplete right hemi- plegia ; failure to find words for thoughts. Trephined through necrosed bone ; re- move 1 softening syphilitic gumma. Trephining over cerebellum. Removed first one- Immediate im- Recurrence of 44. 30 years. Child, 2 Tubercle size of provement in paraly- sis and speech. Death in four days. Abolition of dysp- noea, headache, and rotatory convulsion. Death from shock in three-quarters of an hour. drowsiness in three w< eks ; death in month, encephalitis. 45. yeafs. No rec- None. In fits, body rotated violently to left around central axis. Left hemiplegia and contraction left arm : ex- aggerated reflexes on left; operation advised, March, 1887 ; tactile left hemian ajsthesia ; loss muscular sense and paralysis left arm ; paresis left leg; sensory aura in left wrist ; clonic spasm left hand. Tumor in middle egg in cerebellum. Life prolonged in 46. ord. Male 32 lobe cerebellum. Tumor ascending frontal convolution below level first fron- tal sulcus, extending back and upward. half occipital bone ; later, the other half. 1889. Removed tu- mor; operation lasted fifty minutes. Tubercle.35] grms., middle right ascend- ing frontal convolu- tion. comfort for two years. years. 47. 48. Springthorpe (Austral. Med. J our nal, Novem- ber 15, 1890). Oppenheim (t eulsch Med. IVoch ensch rift, 1896). Boy, 13 years. Woman, Fall off five foot fence on right forehead. Never well after fall; opera- tion three years later Severe headaches; gradual loss of sight ; attacks vomiting; con- vulsions ; vertigo; epis- taxis ; tottering gait; atrophy both optic disks; diminished knee- jerks. Convulsions daily ; headache; loss mental power; no choked disk; salivation ; vomiting ; six months pregnant. Conjugate deviation head and eyes to right in fits ; aura of formica- tion in both hands; hear- ing right ear dull; falling toward right side and backward. Pain in right half of forehead ; mouth drawn to right : paralysis left eyelid ; total paralysis left arm ; contracture ; slight pare-is left leg ; sensibil- ity blunted face and arm. Cerebellar tumor. Cortical tumor low- Trephined o v e r right lobe cerebel him; clear, serous fluid escaped ; no tu- mor found. Trephined : no pul- A t post-mortem, found glioma middle lobe cerebellum, with decomposing cavity in centre; numerous hemorrhages; all channels to lateral ventricles dilated; ventricles full of blood-stained fluid; cranial bones thinned ; main press- ure on right side. Glioma, with cystic degeneration. Death. Sensory and motor Fairly complete re- 36 years. er part right ascend- ing convolution. sation ; incised dura ; anterior convolu- tions deep bluish red and swollen ; opened into cyst ; abundant serous fluid evacuated ; no response to electric- ity over convolutions. paralysis diminished next day. covery. 127 Brain, Brain, REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. No. of case. Operator, date, reference. Sex and age. Trauma or n t. Time be- tween trauma and first symptoms or dura- tion. General symptoms. Localizing symptoms. Diagnosis. Operation. Situation and nat- ure of tumor. First result. Final result. 49. Graham (Aux- Bo , 16 Fall over Unco n- Severe frontal head- Amaurosis left eye ; Trephined over up- per portion fissure Rolando. Entered cyst, evacuated, re- moved by traction. Trephined over arm centre on left side. Area brain equal to silver dollar of cen- tral and frontal gyres decorticated to depth one-quarter inch. Trephined over these centres ; found nothing : operation relieved pressure. Trephined ; noth- ing found. Trephined frontal bone above supra-or bital ridge on right side; probe passed along orbital plate ; nothing found. Trephined over upper p a r t fissure Rolnndo, close to mesial line of skull ; dura opaque, no pul- sation ; dense subdu- ral growth, one-half inch thick ; partial removal on account of proximity to sinus. Exploratory opera- tion over left ascend- ing frontal; negative result. Hydatid cyst; pia intact ; motor area depressed; cyst had grown from arach- noid ; capacity cyst, 19 oz. Spider-shaped new growth, with long filaments on surface of convolution. Small spindle-celled sarcoma in parietal lobe, behind leg cen- tre ; s a m e consist- ency as brain, remote from arm centre, yet arm engaged. Tumor found on Seventh day began to take interest; vicis- situdes till fourteenth day ; thence steady improvement. Next day aphasia, right motory and sen- sory hemiplegia: then twitchings in limbs preceded restoration functions ; rise of temperature; a month later small abscess at wound. . Recovery con- sciousness, and dim- inution paralysis. Recovery, but with blindness. Recovery, but cor- vulsions recurred in two months. Death in three weeks. Death second day. 50. 51. 52. tral. Mcdicil Ga- a tie, June, 1890). Church (N. American Prac- titioner, 1890, p. 433). Stokes (Brit. Med. Journal, 1890). Beach (Boston Med. and Surg. Journal, April, 1890). Wyman (Med. News, February 8, 1890). years. Man, 38 years. Man, 4 2 years. Man, 51 rock, ten feet. scions two days: first symptoms five years later. ache ; giddiness ; nau- sea; attack vomiting, four days: blindness ; post, neuritic atrophy ; attacks drowsiness, etc.; coma begins just before operation. Apoplectic seizure ; afterward convulsions; constant frontal head- ache. Coma at time of op- eration; absence choked disk; fixed headache and vomiting. Severe frontal and leans to right side in walking; paresis right leg ; protrusion eyes. ' Fits begin with pain and spasm in r.ght index fin- ger, then other fingers, wrist, elbow, shoulder in- vaded by pain and clonic spasm ; then loss con- sciousness and general convulsions ; p a i n and contraction persist in right hand. Tonic spasms left side, beginning in leg, invad- ing trunk, arm, face; then paralysis in same order. Short attacks of apha- sia, without agraphia or loss of consciousness; tre- mor right hand; jierrna- nent hesitancy speech ; twitching right hand and right eyelid ; then paresis extensors right hand. Divergent squint after convulsion ; slight move- ment rotation ; anosmia. Initial paralysis, then paresis right leg ; aura of torsion in right leg. then leg forcibly flexed ; hemi- spasm: pal esis right arm; recurrent twitchings and numbness right limbs : face drawn to right in fits; speech affected afterward, then slight motor aphasia Hesitation in speech, then aphasia; hemor- rhage right ear and mouth ; offensive dis- charge right ear ; series spasms left side ; com- plete left hemiplegia (not left-handed); con- tracture ; exaggeration left tendon reflex ; hemi- anopsia not tested. Tumor at leg and arm centres. Tumor anterior 53. 54. 55. years. Young man. Man, 47 years. Boy, 14 years. occi pital headache; mental dulness; double optic neuritis. Frontal headache a year ; fever several weeks' duration; dimin- ished vision ; double choked disk; vomiting: epileptic attacks; great muscular weakness. lobe, pressing on lower part central convolutions. Tumor in region of sella turcica. supposed level, but behind motor area ; posterior edge limited by post, ascending branch of Sylvian fis- sure ; anterior by small sulcus ; motor and frontal convolu- tions healthy ; optic tracts compressed. Tumor inches long, contained in a cavity in left hemi- sphere cerebellum ; all ventricles distend- ed with fluid. Very chronic syphilitic neoplasm growing from dura and falx cerebri. Cystic mass at left of sella turcica springing from apex petrous bone. Syphilis Fall against tree in coast- ing. Thirty years be- fore symp- toms. Eighteen month s iiefore ad- mission; first syrnp- t o m s in three weeks af ter a c c i- dent. Twitchings in foot for two days, did not spread ; abscess formed in wound. Death in few hours. Death from septi- camiia on nineteenth day. ct, March 1, 1S90). Walker (Brit. Med. Jou-nal, Aug. 23. 1890). 1 1 side ; several weeks ; convulsions; uncon- scious three hour s, then repeatedly ; exag- geration reflexes both sides. Dizziness, then pare- sis hands ; staggering ; mental power failed with speech; vomiting. Tumor with de- scending sclerosis. (SUPPLEMENT.) 128 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Brain. Brain. 56. Dumin (Neu- rol. Central- blatt, August 15, 1890; quoted by Knapp, loc. cit.). Bremer and Hemiplegia ; aphasia Jacksonian epilepsy. Spasm left arm and Trephined ; re- moved tumor. Trephined over right fissure Rolan- do ; tumor removed. Trephined over scar ; nothing found. Trephined, Feb. 25, 1890 ; tumor too large for removal. Operation Novem- Tumor of ante- Recovery. Sudden death four months after opera- tion. Recovery. Death. Death in eight days. Entire recovery; •'marvellous expan- sion of intelligence ; '' disappearance of pa- ralysis. Recovery ; no fur- ther attacks three and one-half months after operation. Perfect recovery. Death. 57. ord. Male, 23 years. Male, 35 years. Morning vomiting; peculiar gait; begin- ning choked disk ; ab- sence mental initiative. Cerebral tumor; rior central convolu- tion. Cavernous angio- ma. Glioma left corpus striatum and optic thalamus. Glioma, 3|x4 in., in left frontal lobe, reaching beyond fis- sure Rolando. Congenital serous cyst in locality diag- nosed. 58. Carson (Am. Jour. Med. Sci- ences, Septem- ber, 1890). Kerr (Occident. Med. Times, 1890; from Knapp). Eskridge (from Knapp). Doyen (Con- gres Franyais de Chirurgie, 1891). Blocq and Rey- mer (C o n g r e s Franyais de Chi- rurgie, 1891). McCall Ander- son (Brit. Med. Journal, 1891). Seguin (Boston Med. and Surg. Journal, Febru- ary, 1891; from Knapp). Bullard and Bradford (Bosto n Med. and Surg. Journal, April 30, 1891). Injury head. neck; temporary apha- sia ; left hemiparesis with contraction in left foot; contractions platysma al- ways begin spasm. Right hemiparesis and spasm ; scar over upper part fissure Rolando. Right hemiparesis, then hemiplegia. Left hemiparesis; slow growth in or beneath Rolandic re- gion near centres for wrist and platys- ma. 59. Loss of strength. 60. 32 years. Boy, 16 years. Boy, 10i years. Boy, 16 years. I Sy m p- memory,mental power; headache. Torpor of intelli- Tumor of meninges or brain behind bulg- ing bone compressing central convolutions. Partial sensitive- Drain withdrawn 61. toms sev- en years before op- eration. First gence, gradually deep- ening to imbecility; vertigo, absences ; epi- leptic attacks of in- creasing severity. Crises, beginning at five years in prickling of facial mucous sur- faces and increased secretion from conjunc- tiva. nose, and mouth ; at eight years, falls ; at nine, convulsive at- tacks. growing more intense; intelligence intact. Sudden epileptic at- tack ; second fit eigh- teen months ago, then others ; at first arrested by bromides, then eighty-nine attacks in ten weeks ; double optic neuritis; increased ex- cretion earthy phos- phates. No record. diminution visual field on right side, then blind- ness and optic neuritis on this side; bulging right squamous bone. Attacks -five to six ber 5,1889, over bulg- ing bone ; very large cyst found ; opened ; drained. Operation, August second day because causing bleeding; re- placed sixth day, 360 c.c. albuminous liquid evacuated ; then every three or four days till 50 c.c. left; permanent drain in six weeks; cure in two months. Attacks returned in 62. 63. 64. symptoms five years before op- eration. Four and one- half years before ad- mission. times a day; mouth dragged to right, associ- ated with prickling sen- sation at mouth and tongue; deviation tongue on right side, and bitten on right side ; eyes fixed ; head turned to right, then loss consciousness; right arm raised in flexion and adduction, then leg, then general convulsion after attack ; right hemianes- thesia ; temporary paraly- sis right arm. Exaggerated reflexes wrist and knee on left side; slight left facial paralysis; numbness and pain left thumb and in- dex ; acute pain above right ear, tenderness two inches behind ; paresis left arm and leg. motrice epilepsy ; ne- oplasm at inferior and middle third cen- tral convolutions. Tumor at Horsley's thumb centre, junc- tion middle lower third right parietal convolution. Tumor under mo- 19, 1890. Localiza- tion according to Poirier ; cyst found extending toward frontal convolutions; wall excised ; drain- age. Second opera- tion . removed cyst, volume of large wal- nut, December 13th. Trephined just be- hind line for Rolan- dic fissure, three inches from upper extremity; at first found nothing; sec- ond trephine higher up ; then brain sub- stance bulged at first opening; tumor size of plum rolled out. Trephined ; noth- • sixteen days; after second operation pa- tient well for six days, then attack followed by aphasia for two hours. No epileptic attack for eight weeks ; still some spastic con- traction muscles fin- gers. wrist, elbow, but power to move arm. Glioma, one-half Female, 6f years. Vomiting; vertigo; staggering; weakness all four limbs ; incoor- dination ; blindness ; optic neuritis; head- ache. tor centre for left leg. ing found. Trephined over torula; opening made into sinus. inch in diameter, found at autopsy at point diagnosed in medullary substance below cortex; same consistency as brain. Cheesy tubercle in cerebellum. Death from hem- orrhage. 129 Brain. Brain. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Q O 6 Z Operator, date, reference. Sex and age. Trauma or not. Time be- tween trauma and first symptoms or dura- tion. General symptoms. Localizing symptoms. Diagnosis. Operation. Situation and nat- ure of tumor. First result. Final result. Knapp and Bradford (Case xxix. of ''Essay," 1891). Mills and Keen Male, 28 Headache: vomiting: optic neuritis; blind- n e s s ; paraesthesia mouth and hands; deafness; anosmia. No optic neuritis ; no general symptoms. Epileptic attacks; Tenderness in right temporal region; absence left knee-jerk; slight pa- resis left hand. Left hemiparaesthesia for few moments; attacks at intervals weeks or months; in four years complicated by spasm left limbs, then passing to right; most marked in arm : prickling sensation left arm ; cry ; extension left arm, this leg; head twists to right. Incomplete left paresis; Trephined over tender spot; nothing found; operation only to relieve intracrani- al pressure. Trephined 1.75 inch to right of median line, in line of fissure Rolando; cranial in- dex =0.75; tumor removed. Operation while pa tient six months pregnant: trephined over lower part right parietal convolu- tions ; dura did not pulsate; no reaction to electricity ; swol- len convolution over cyst; evacuated, an- terior part removed. Trephined 1.3 ctm. behind parieto-occip- ital fissure, 3.2 ctm. to left of median line; dura bulged; no pul- sation ; no response to Faradic current; elastic hard body 6.3 ctm. below surface ; some pieces removed. Trephined over fis- s u r e Rolando; re- moved tumor. Removal tumor Tumor involving left lateral lobe of cerebellum. Small growth, orig- inating in pia, had bored through dura and formed nest in skull, one-sixteenth inch in front of tre- phine ; Faradisation just behind fissure elevated shoulder ; above opening Fara- disation gave same, also flexion leg and thigh; growth looked like hypertrophied Pacchionian body, but proved sarcoma. Cyst size of hen's egg ; cystic degener- ated sarcoma. Relief from head- Death from en- 66. 67. years. Female, 27 years. Woman, First symp- toms ten years before admis- sion. A ttaek apo- ache ; cerebral her- nia ; left hemiplegia and left anaesthesia. Movement left cephalitis about ten weeks later. Same attacks con- (Amer. -Journal M e d . Sciences, 1891). Koehler and Lesion right motor zone. Tumor parieto- occipital lobe in an- gular gyrus, with pressure on left cuneus. shoulder paralyzed; all paralysis disap- peared on thirty- third day, though limbs weak. Headache ceased ; tinned, but less se- vere. Typical epileptic attack four months after. Death. Death in fourteen 68. 69. 0 ppenheimer (Berlin A lin. Wochen., 1891). Keen (Amer. 36 years. Man, 56 plexy one year before admis- sion. Injury to head. Five months. Eighteen years: first symptoms two years before ad- mission. loss of memory; irrita- bility ; headache; ver- tigo ; no optic neuritis. Headache; nausea ; then paralysis left arm: paresis left leg; knee-jerk exaggerated on left side; attack begins with draw- ing mouth to left; draw- ing in left arm, thumb, and index; then clonic convulsion arm ; paraly- sis left half face. Aphasia : right lateral hemianopsia ; lesion left side brain; right hemi- paresis ; apraxia. Atrophy right leg and arn; reflexes exagger- ated on left; pain on left side head. Jacksonian epilepsy. Anosmia on left side; paralysis left facial; paresis left leg disap- peared ; arm recov- ered ; normal deliv- ery. At autopsy several months later softened tumor found size of apple in cortex and medullary sub- stance of lower part central convolutions; interstitial encepha- litis. Journal Medical Sciences, Sept., 1891). Castro ("Ann. Surgery," St. Louis, 1891), Poirier (Rev. years. Boy, 14 years. Man, 32 vertigo; diminished vision ; vomiting at- tacks ; double optic neuritis. Headache ; vomiting. bert, 5 ctm. from end of occipital lobe, 2.5 ctm. from median line ; angular gyrus removed at opera- tion ; infiltrating gli- oma. Blackish tumor size Bulging wound on seventh day; on twelfth day cicatrix opened ; cyst, 7 ctm. ejected. hours. Death, from diph- theria of wound. Recovery; freedom from attacks. Recovery. u Epilep- tic attacks twelve years, ev- ery f o r t- night. of walnut. Tumor; central 71. de Chir., 1892). Booth and Cur- years. General epileptic con- vulsions ; marked psy- chic changes; choked disk, bilateral. through hole made by mallet and chisel. Trephined over eroded bone ; tumor removed. gyri vascular. Tumor, tubercu- lous. t i s (Neurologi- cal Society, New York. December 6, 1892). bone eroded at angular process left frontal bone. (SUPPLEMENT.) 130 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Krain. Krain. 72. Llobet (Revue d e Chirurgie, December, 1892). Boy, years. 13 .. l1 W 0 yrs.; head- ache. Headache violent: abolition intelligence and memory; crying and anger ; exagger- ated patellar reflexes ; pulse slow ; respiration slow and irregular. Jacksonian epilepsy two months after head- ache ; total hemiplegia right side; contracture in flexion forearm and fingers ; right leg in flex- ion ; foot in equinus varus; diminution vision right eye ; mydriasis. Tumor in psycho- motor centre left hemisphere. Resection temporal bone : flap 8x10 ctm.; no pulsation brain ; fluctuation ; evacua- ted 260 grms. fluid ; extracted cyst. Hydatid cyst. Disappearan ce headache, epilepsy, hemiplegia, contract- ure, aphasia; re- flexes became nor- mal, also pulse and respiration. Recovery, but memory not returned in three months. 73. Girl, years. 18 Ten Cerebral vomiting; pain in forehead; blind- ness six weeks: intense double optic neuritis. Twitching attacks in left arm, beginning in thumb and first finger ; sensory aura in s a m e parts. Trephined over Rolandic fissure ; nothing found. Multiple cerebral tubercles in right hemisphere ; dissem- inated tuberculosis. Hernia cerebri. Death in a month. son (Lancet, May 14, 1892). weeks. 74. Hitzig (Berlin, k I i n. Worhen- schrift, July 18, 1892). Man, years. 29 Blow head. o n Headache ; incipient dementia, choked disk; narrowed visual fields ; paresis both legs ; ex- aggerated both patella reflexes ; mental symp- toms preceded motor. Paresis left hand in repeated attacks; dimin- ished vision of right eye ; paresis left facial ; head inclined to left; paresis left arm ; swelling soft tissues : over right tem- poral region of head, ten- derness. Tumor posterior part frontal lobe, adjacent to middle and lower part as- cending frontal con- volution on right side. Trepanned at point indicated; high grade hyperostosis ; skull one centimetre thick ; tumor found ; opening enlarged to 16 ctm. long and 9 ctm. broad ; success- ful removal. Tumor, 280 grms., equal to weight of half a hemisphere ; sarcoma. Facial paresis and deviation tongue persist; paralysis arm increased. Recovery. 75. Ibid. Man, years. 4* Blow on right Eighteen months before ad- mission; first symp- toms in ten days after blow. Consciousness intact; Paresis index finger, then thumb and middle finger ; later, convulsion left side, then paralysis hand, arm ; paresis left facial left vocal cord; tongue pushed to left; ankle-clonus left side. Trephining d i s - covered cyst size of goose egg, proved to be an encapsulated cysto-sarcoma ; r e - moved in second op- eration. - - . Recovery. side head. no general symptoms; paresis both lower ex- tremities ; increase pa- tellar reflexes. 76. Von Bram- Fall on head. Eighteen Paresis three fingers left hand, arm, and left half face ; twitchings. Tumor at fissure Trephined ; bluish cystic tumor per- ceived through dura ; 30 grms. clear serum withdrawn ; drain- age. Round-celled sar- Recovery after first o)>eration; recurrence in three weeks; sec- ond and third opera- tion ; at last tumor removed. Recovery persists three months after operations. maim (Wien. Med. Wochens., 1892). ord. months previous to admission. Rolando. coma. 77. Ibid. Blow on head Persistent headache; Sudden weakness in Tu m o Trephined ; tumor extirpated; tempo- rary collapse. Operation over ex- posed bone; neoplasm incompletely re- moved. Eyeball removed ; inside, spindle-cell sarcoma surrounding optic nerve ; second operation three months later; tre- phined over speech area; no tumor dis- covered ; threatened collapse. Trephine over up- per part right ascend- ing parietal; no bulg- ing, but after needle 3 ij. straw - colored fluid ; no tumor found. Spindle-cell sar- coma ; small cyst. Hard cartilaginous neoplasm adherent to superior longitudinal sinus. Recovery. Death fift 78. Nixon (Med. Press and Circu- lar, 1892). Clegg (Liver- pool Med. Chir. Journal, 1892). Twynam (Aus- tralasian Medi- cal Gaeette, May, 1892). ord. Man, years. Man, years. Man. 28 in former years Histnrv n f diminished vision: diminished mental power. Giddiness ; vomit- left hand ; gradual pa ralysis left arm and left face ; neuritis left eye. Left hemiplegia ; sup- purating sebaceous cyst; exposed bone over right parietal eminence. Aphasia and right hemi- plegia ; temperature one degree higher on left side; eye suppurates; after first operation epileptic at- tacks, beginning in right side face, right arm; rarely right leg. Parekis left hand and area. Marked improve- ment ; disap]H?arance pain, paralysis, and sphincter paralysis. Jacksonian epilepsy continued ; temi>o- rary recovery after second operation. Bronchitic rides; Ii week, try hem- wound. of pain in four 79. 31 syphilis. ing ; amnesia ; defect- ive vision; intense headache; double optic neuritis ; dulness; pa- resis sphincters. (These symptoms all sudden.) Exophthalmos, double optic neuritis: severe amblyopia; con- vulsion after temporary aphasia. Giddiness five min- from seconds orrhage fron Return 80. Six weeks. Tumor occupying whole medullary cen- tre right parietal lobe, 68 by 57 mm. ; extends from Roland- ic fissure to parieto- occipital, bulging into roof lateral ventricle. and attacks months. tocks. utes after fall ; head- ache in six weeks. leg ; some loss sensation ; pain in right temporo- frontal region. death on fourth day. (SUPPLEMENT.) 131 Brain. Brain. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Final result. Death sudden in few days. Death in few days. Death third day after; temperature, 108° F. for an hour. 1 Out of the 300 cases of tumor in children, 96 were situ- ated in the cerebellum. This single fact suffices to es- tablish a relatively unfavorable prognosis for brain tu- mors in childhood. In this same list were found 56 cases of tumor of the cortex and centrum ovale, localities favorable for opera- tion ; 16 of these, however, were not correctly diagnosed, therefore could not have been operated, even if the oper- ation had been suggested. Out of the 40 which remain, localizing diagnosis would have been impossible in 21, though the autopsy showed that in some of them an operation would have been possible. In 19 cases the tumors were in the cen- tral convolutions, or subjacent centrum ovale, and in 13 of these local spasm followed by paresis made the pre- cise diagnosis sufficiently clear. In the remaining 6 the locality was established by the symptom hemianopsia. The author estimates, however, that in only 16 of these cases could an operation have been undertaken with much hope of success, and as 10 of these were tubercu- lar, the number of cases where even this new and heroic remedy offered hope of complete recovery was reduced to 6 out of a total of 300. The statistics for adults, as regards localization, differ somewhat from the above. A table of 649 cases, com- piled from the cases of Ladame and Bernhardt, has al- ready been given in the article on " Brain Tumor " in the main body of this Handbook. It may be worth while to reproduce this table. The tumor was situated in the : Per cent. Centrum ovale in; 192 cases = 29 Cerebellum in 132 " = 27 Cortex in 74 " =11 Pons in 53 " = 8 Basal ganglia in 36 " = 5 Medulla in 30 •* = 4 Corpora quadrigemina in 13 " = 2 Cerebral peduncle in 10 *• = 1 Extra cerebral in 71 " =11 This table can be compared with Starr's as follows : Situation and nat- . .. ure of trauma. r,r8t result- Shock; death in few hours. Relief from head- ache. Recovery, but slight symptoms recurrence Tumor in middle lobe cerebellum. Cystosarcoma middle lobe. Round-cqjled sar- coma size of hickory nut in ascending pari etal convolution, one- quarter of an inch beneath surface, at junction of upper and middle third; had been penetrated by exploring needle. Diagnosis. Operation. Trephined; re- moved very large glio- sarcoma. (Operation proposed eleven months before finally performed.) Trephined with apex of flap on supe- rior curved line ; no tumor found. Trephined between curved lines ; cystic tumor tapped ; could not be removed. Operation Novem- ber 14, 1890. Laid bare ascending fron- tal, ascending parie- tal, bases 2d and 3d frontal, anterior 3d, 1st and 2d parietal convolutions; dura tense and bulging ; examination by need- les : no tumor found. Opening over left Rolandic area ; cyst Tumor frontal lobe impinging on motor centres. Tumor right lobe cerebellum. Tumor middle lobe cerebellum. Tumor left centrum ovale (Subcortical. because no convul- sion) beneath upper part ascending parie- tal convolution. Tumor arm centre. Localizing symptoms. Tenderness on percus- sion left side head ; right side hemiparesis. Exaggerated reflexes on right side ; some right anaesthesia of face. No local symptoms. Paralysis right leg ; pa- resis right arm ; muscu- lar sense greatly im- paired ; other sensibility !preserved; exaggeration । right knee-jerks. Twitching, then pare- 1 sis right arm; loss of Tumors situated in Children. All cases. Cerebellum Cortex and centrum ovale 96 cases = 32% 56 " = 18% 162 cases = 27% 266 " =41% Thus consideration of the prevailing situation of brain tumors alone, would seem to justify Bergmann's dictum,1 that the field for successful operation is very narrow, the reverse of what can be now affirmed of trephining for brain abscess. On the other hand, examination of the 85 cases in which operations have been performed gives a more favorable view. At this date (January, 1893) there is a record of 39 successful operations against 46 unsuc- cessful cases, and one trephining to relieve intracranial pressure.2 These have been performed in all parts of the world, even British Guiana having contributed a suc- cessful case in 1888 (Rannie, British Medical Journal, 1888). The following table summarizes these results. "Successful" implies that the tumor was found and re- moved, that the serious symptoms subsided and the pa- tient lived more than two months, or even recovered com- pletely. " Unsuccessful " refers, not only to the death of the patient from the immediate consequences of the oper- ation, but also to the impossibility of completing this, either because the tumor was not found at the locality supposed, or proved too large or too deeply seated to be completely removed ; finally to the speedy recurrence of the tumor so as to cause the death of the patient in a short time, notwithstanding the immediate success of the operation. Successful 39 Unsuccessful: Tumor not found 20 Tumor not removed 10 Death from operation or speedy recurrence of neoplasm 16-46 85 General symptoms. Marked psychic symp- toms ; sluggish thought and speech ; headache ; double optic neuritis; no failure vision ; mo- tor symptoms devel- oped later; exagger- ated reflexes both sides. Optic neuritis; blindness ; staggering ; severe headache. Vomiting; headache; blindness; choked disk; staggering. Headache; insomnia; cremaster reflex slug- gish on both sides; somnolence before op- eration. Time between trauma and first symptoms or duration. Sym p t o m s one month be- fore operation; hard growth in Scarpa's t r i - angle. Trauma or not. Sex and age. Man. Man. Child, 12 years. Man, 38 years. Operator, date, reference. Starr and McBurney (New York Academy Medicine, Janu- ary 5, 1893). Ibid. Ibid. Gray and Wyeth (Brain, 1892-93). Stieglitz & Ger- ster (Neurolog. •ox 03U3 19 GO 00 00 GO 00 132 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Brain. Brain. In 1888 Dr. Keen wrote (Reference Handbook, " Brain Surgery ") that the percentage of mortality was thirty-five per cent. This calculation was based upon the 17 operations which had then been performed, with six re- coveries, and included among them one case (Heath, Lan- cet, 1888, Case 27 of table), which we have placed among the unsuccessful cases, because, although the patient sur- vived the operation and was relieved, the tumor was too large for removal. The percentage of successes (11 cases out of 17) was nearly sixty-five. To-day, the larger num- ber of cases yields as successful about forty-six per cent., as failures, nearly fifty-four per cent. The less favorable result is not surprising, for the operation has been at- tempted under a much greater variety of circumstances, so that a greater number of unfavorable conditions have been encountered. For this reason the estimate of the operation has varied in the same way as did that for tracheotomy. This operation on its first suggestion ex- cited unbounded enthusiasm, until experience showed how numerous conditions of failure were inherent in the disease for which the operation was performed, and which could not be overcome by any degree of perfection in its surgical technique. The precision is surprising with which small tumors have sometimes been localized for removal. In Seguin and Weir's case (No. 24) the neoplasm was only the size of an almond, and lay an inch below the surface. In another case, however, reported by Seguin, a glioma one-half inch in diameter escaped detection. It was found at the autopsy at the locality diagnosed, under the motor centre for the left leg, but its consistency so resembled that of the brain tissue that it could not be differentiated (Case 63). The writer remarks that an operation may be undertaken too early on the brain- i.e., before the tumor has grown sufficiently large to be appreciable, even although it may have occasioned pa- thognomonic symptoms. In 19 other cases where the tumor was not found, the reason for the failure was quite different. In Keet- ley's case (41) the pons was found enlarged to three times its natural size by an infiltrating glioma. The only lo- calizing symptom presented had been a slight internal strabismus of the left eye (paresis abducens). This fact should have suggested a pontine, and consequently inoperable tumor, as also the fact that the knee-jerks were exaggerated, while absence of paralysis, and ex- istence of vomiting, giddiness, and staggering pointed to a tumor of the cerebellum.* With the latter, how- ever, the knee-jerks are habitually diminished, and this special combination of negative and positive signs should suggest a lesion of the pons, in spite of the absence of many of its characteristic paralyses. The patient, a child of seven, who had had a fall fourteen days before the onset of the symptoms, had an attack of collapse fol- lowed by a subnormal temperature just before the op- eration, another circumstance pointing to the pons. An exploratory operation was made through the left squa- mous bone, but nothing found, and the child died two days later. In Pilcher's case (31) there was a scar after an injury situated over the left angular gyrus, and the skull was trephined at this point. The patient had marked men- tal impairment, epileptic attacks, beginning in a con jugate deviation of head and eyes to the left, and tonic hemi- spasm on the right side. Shafer {Brain, April, 1888) claims that excitation of the brain near the angular gyrus produces conjugate deviations of the eyes to the opposite side. The centre for such deviation is placed by Hors- ley at the posterior extremity of the middle frontal gyrus ; and the autopsy in this case would seem to con- firm that localization. A glioma was found on the left side, in the occipital lobe, but extending forward as far as the frontal lobe. The island of Reil was softened. The mental impairment, taken together with the conju- gate deviation of the eyes, pointed to the frontal lobes, (SUPPLEMENT.) where also the headache was situated. Nothing indicated the occipital lobe, and at the angular gyrus nothing was found. In Sciammana's case (3) also the patient was trephined, unsuccessfully, at the seat of an injury to the head in the right parietal region. The tumor was a glioma, lying in the right centrum ovale and extending from the right inferior cornu to the corpora quadri- gemina. Crossed paralysis had existed, left hemiplegia, followed by right oculo-motor and facial paralysis. This is not explained by the autopsy. Kerr's operation (58) is the third on the list misled by a scar. The indication was the more plausible because the scar was situated over the upper part of the left fissure of Rolando, in a patient suffering with hemispasm and hemiparesis. A glioma was found in the left corpus striatum and optic thalamus. This is the only case on the list where a tumor in this situation had simulated a cortical tumor. In Knapp's second case (65), the trephine was applied over a tender spot in the right temporal region, although there were well-marked symptoms of a cerebellar tumor. After death, ten weeks after the operation, the tumor was found in the left lateral lobe of the cerebellum. In this case the left knee-jerk was absent, and there was slight paresis of the left hand, symptoms which, together with the characteristic symptoms of tumor, might have suf- ficed to indicate the cerebellum. In seven other cases an erroneous diagnosis was made of tumor of the cortical motor centres (Fraser, Hammond. Amidon, Stokes, Walker, Dobson, Twynam), and in one (Beach) of tumor of the frontal lobe pressing on the cen- tral convolutions (Cases 5, 7, 8, 51, 55, 73, 80). In Fraser's case (5) the localizing symptoms were right hemiplegia and contracture, indistinct speech, amnesic aphasia, agraphia. The error depended on the duplicity of the lesion. There wTas a tumor in the middle of the right ascending parietal convolution, and another in the left temporal lobe involving the ascending convolutions. The amnesic character of the aphasia really pointed to the left temporal lobe rather than to the neighborhood of Broca's convolution. It is difficult to understand the fail- ure in Hammond's case (7), as the autopsy revealed three cysts in a line in the anterior central convolution pre- cisely where the lesion had been diagnosed. In Amidon and Weir's case (8) the tumor was found in the cerebellum at the autopsy, although the patient had had left hemi- spasm and paralysis of the left arm. Two circumstances, however, pointed to the cerebellum-with the left-sided paralysis co-existed a paresis of the right arm, thus a bilateral motor defect, and there was also optic neuritis on the left side. Stokes's case (51) shows, as the author re- marks, that the motor centre for the leg extends farther back than is usually assumed, or else that transmitted pressure from a distance may cause the same symptoms as a lesion at the centre. A spindle-celled sarcoma was found in the parietal lobe, just behind the leg centre, and being of the same consistency as the brain, could not be distinguished. In Walker's case (55) the symptoms were very confus- ing. Staggering seemed to indicate a cerebellar tumor, as also the vertigo and vomiting. But a marked mental defect pointed to the frontal lobes, and motor aphasia to a lesion on the left side. On the other hand, left hemi- spasm and hemiplegia were to be referred to the right side of the brain, and hemorrhage and an offensive dis- charge from the right ear seemed to localize the disease more precisely near the petrous bone. Paresis of both hands pointed to the cerebellum ; exaggeration of the left tendon reflex, on the contrary, confirmed the indica- tions offered by the left hemiplegia. An exploratory op- eration was performed over the left ascending frontal with negative result. At the autopsy a cystic mass was found at the left of the sella turcica, springing from the apex of the petrous bone. The record leaves unexplained why this should have been associated with discharge from the right ear. Dobson's case (73) exhibited an apparently exquisitely precise symptom, namely, twitching attacks in left arm, beginning in thumb and first finger, with sensory aura in * The knee-jerks are usually diminished in tumors of the cerebellum, whereas they are exageerated in tumors of the pons. This may be a useful detail in distinguishing between these two lesions, whose symp- toms often resemble each other. 133 Brain. Brain. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. same parts. Horsley has located the thumb centre just behind the middle of the ascending parietal convolution, and a signal symptom in Jacksoniam epilepsy, initiated at this point, has several times guided to an exact diagnosis. But in this case the centre was evidently irritated by press- ure from a distance. There were multiple cerebral tubercles in the right hemisphere. This is the second case of multiple tumor on the list. In Twynam's case (80) the tumor seems to have escaped detection, partly because it lay too far below the surface in the medullary substance, partly because, as in Stokes's case, the tumor, though pressing on the central convolu- tions, lay behind them, in the parietal lobe. Besides the hemiparesis there was some loss of sensation, and this symptom, as well as the loss of muscular sense, seems to point to the parietal lobe rather than the central convolu- tions. Another fact in the same sense was the incomplete nature of the paralysis. The tumor found on autopsy was very large, 68 by 57 millimetres, extending from the Rolandic fissure to the parieto-occipital, and bulged into the roof of the lateral ventricle. In Beach's case (52), finally, a tumor was diagnosed in the left frontal lobe, pressing on the lower part of the cen- tral convolutions. The first local symptom had been a motor aphasia, followed by tremor, then twitching of right hand and eyelid, then paresis of right hand. The tumor was found at the supposed level, but, as in Cases 51 and 80 (Stokes and Twynam), it lay in the parietal lobe behind the motor convolutions and between the posterior ascending branch of the Sylvian fissure and a small sulcus anteriorly which separated it from the ascending parietal convolution. There were no sensory symptoms to aid the diagnosis. In Wille's case (25) a tumor of the left parietal lobe (SUPPLEMENT.) was diagnosed, but the diagnosis was guided by the ex- istence of a swelling over the left parietal bone. Only after this had been incised did right hemiparesis appear, including the facial nerve. In a second operation sub- dural pus was evacuated but no tumor was found. At the autopsy was discovered a tumor the size of a pigeon's egg in the posterior part of the left paracentral lobule, extending into the upper part of the ascending parietal convolution. Also, and this makes the third case of mul- tiplicity, a second tumor was found in the middle of the ascending parietal convolution. In two other cases on this list the tumor lay in the cerebellum. In Wyman's case (53) it had been diagnosed in the sella turcica, be- cause, in addition to the general symptoms, the patient had a divergent squint (paralysis motor oculi), anosmia, and slight movement of rotation at the beginning of the convulsive attacks. There was great muscular weakness, but neither hemiplegia nor staggering. A tumor three- quarters of an inch long was found in a cavity hollowed out in the left hemisphere of the cerebellum. All the ven- tricles were distended with fluid. The great frequency of cerebellar tumors might, it would seem, have decided the surgeon to operate, if at all, in their locality. But instead of this he trephined the frontal bone above the supra-orbital ridge and passed a probe over the orbital plate to the sella turcica with necessarily negative result. In Springthorpe's case (47) a cerebellar tumor was cor- rectly diagnosed, and several symptoms pointed to press- ure on the right lobe of the cerebellum. In the tits there was conjugate deviation of the head and eyes to the right side ; the right ear was moderately deaf, arid the patient fell backward and to the right side. An opening was made over the right lobe of the cerebellum, clear serous fluid escaped, but no tumor was found. At the Table II.-Twenty Cases of Operation where Tumor was not Found. No. Name. Diagnosis. Real locality. Result. Remarks. 68 Seguin. Tumor under motor centre for left leg. Locality diagnosed. Death. Tumor very small, half inch in diameter, and of same consistency as brain. 41 Keetley. No record. Infiltrating glioma of pons. Death in two days. Symptoms pointed to cerebellar tumor, but exaggerated knee jerks, attack of collapse, and subnormal temperature. 3 Sciammana. Trephined over a scar or tender point. Right centrum ovale. Death in two days. Symptoms not explained by autopsy. 31 Pilcher. Trephined over a scar or tender point. Occipital lobe. Death. Conjugate deviation eyes, pointed either to angular gyrus or upper part frontal lobe; latter affected by pressure. 58 Kerr. Trephined over a scar or tender point. Basal ganglia. Death. Hemispasm and hemiparesis fully simulated a cortical tumor. 65 Knapp and Brad- ford. Trephined over a scar or tender point. Cerebellum. Death. Symptoms indicated a cerebellar tumor, be- cause general symptoms marked, left knee- jerk absent, and paresis left hand. 84 Gray and Wyeth. Tumor in Rolandic convo- lutions. Tumor of centrum ovale one-fourth inch below surface of ascending parietal convolution. Death in three days; much e xp 1 o r a - tion of brain by needles. Failure due to identical consistency of neo- plasm and brain tissue. 5 Fraser. Tumor in Rolandic convo- lutions. Double lesion : first, as- cending parietal : sec- ond, temporal lobe. Death. Amnesic aphasia really indicated temporal lobe or island of Reil. Hammond. Tumor in Rolandic convo- lutions. Triple lesion, but all in motor convolution. Death in twenty-one hours. Failure to find three cysts is not explained. 8 Amidon and Weir. Tumor in Rolandic convo- lutions. Cerebellum. Death in ten weeks. There was bilateral motor defect and left optic neuritis, which might have suggested cere- bellar lesion. 51 Stokes. Tumor in Rolandic convo- lutions. Parietal lobe, just be- hind leg centre. Death in three weeks. Symptoms very confusing, but included dis- charge from ear. 55 Walker. Tumor in Rolandic convo- lutions. Apex petrous bone. Death in few hours. 73 Dobson. Tumor in Rolandic convo- lutions. Multiple tubercles in hemisphere. Death in one month. Apparently characteristic cortical epilepsy. 80 Twynam. Frontal lobe, pressing on motor convolutions. Parietal lobe. Death fourth day. Some loss of sensation might have suggested superior parietal lobule. 52 Beach. Frontal lobe, pressing on motor convolutions. Parietal lobe. Death second day. In this case no sensory symptoms, and motor aphasia had preceded hemispasm. 25 Wille. Parietal lobe (scalp swell- ing here). First, in paracentral lobule ; second, in as- cending parietal. Death. Many cerebellar symptoms, but also paralysis abducens and anosmia. 53 Wyman. Sella turcica. Left hemisphere of ce- rebellum. Death. 47 Springthorpe. Cerebellum, right hemi- sphere. Middle lobe cerebellum. Death. Pressure on right side localized the symptoms. 82 Starr and McBur- ney. Right lobe cerebellum. Middle lobe cerebellum. Sudden death in few days. 40 Keen (Reference Handbook Med- ical Sciences, 1889). Tumor cerebellum. Cerebellum. Death in fifty-two days. Tumor diagnosed but not sought; ventricles tapped for internal hydrocephalus. 134 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Brain. Brain. autopsy a glioma with a central cavity was found to oc- cupy the middle lobe of the cerebellum. All the ventri- cles were full of blood-stained fluid. The main pressure was upon the right side. The last case has just been reported by Gray and operated by Wyeth (84). The exact locality of the tumor was correctly diagnosed, but it lay one-quarter inch be- low the surface (as had been expected from the absence of convulsions), and the consistency so closely resembled that of the medullary brain-tissue in which it was em- bedded that an exploring needle passed through it without detecting its presence, and it was discovered at the autop- sy with difficulty, and by careful slicing of the brain. Nearly all the cases where the tumor was not found at the site of operation proved fatal, the operation seem- ing to accelerate the natural march of the disease. One case, however (Amidon and Weir), survived ten weeks, another (Dobson) a month. Four cases illustrate the now accepted rule, that a scar, and still less a tender point on percussion, must not be selected as a site of operation, unless focal symptoms point to the same locality. In the five cases of cerebellar tumor a retrospect of the symptoms, after the autopsy, makes them seem more significant than they had appeared before the operation. Cases 47 and 53, as do many other cases which have not been operated, show the impossibility of distinguishing with certainty whether a tumor of the cerebellum be situ- ated in its lateral or its middle lobe. Nothnagel's law of the frequent latency of tumors of the lateral lobes should always incline the diagnosis in favor of a central lesion, unless lateral symptoms are very well marked. The danger of hemorrhage, however, from trephining over the centre of the cerebellum, i.e., of the sinus, is very great, and, on the other hand, a tumor of the middle lobe is sometimes accessible from the side. (SUPPLEMENT.) where an inoperable tumor of the middle lobe of the cere- bellum existed. The patient had suffered for along time from epileptiform fits, with violent rotary movements, from severe headache and distressing attacks of dysp- noea. All these symptoms disappeared after the opera- tion, and the patient's life was prolonged in comfort for two years. In Heath's case (27), also, a large adherent growth was found over the right ascending frontal convolution, which could not be removed. Localized tenderness had existed over the site of the tumor. The patient was relieved of his headache by the operation, and, at the time of re- porting, had made a good recovery. In Case 35 (Limont and Page) a portion of a large glioma was removed, with temporary recovery, but the growth recurred. In Case 39 (Kocher) tumor of the cerebellum was diag- nosed from the four classical general symptoms, in the absence of focal symptoms. A double trephine opening was made to relieve intracranial pressure, one posteriorly on the right side below the tentorium, one anteriorly on the left side. In four days congestion of the optic disks had disappeared, but there was no improvement of vision. In Maudsley's case (42) a tumor had been diagnosed in the left lobe of the cerebellum, the trephine was applied at this locality and a tumor found, but it was a solid nod- ule, irremovably attached to the temporal bone. The patient recovered from the operation. Five other cases proved rapidly fatal. The entire list of ten cases is sum- marized in Tables III. and IV. Death occurred after removal of the tumor in sixteen other cases. The causes may be thus tabulated : 1 Bennett and Glioma upper third Rolan- Hernia cerebri ; septic God lee. die fissure. meningitis ; death in thirty days. 4 Hirschfelder and Morse. Infiltrating glioma post central gyrus. Death eighteenth day ; septic encephalitis. 12 Horsley. Tubercle right lobe cere- bellum, seven drachms. Death in nineteen hours from shock; general tuberculosis. 13 Bennett May. Tubercle size of pigeon's egg in cerebellum. Death from shock. 14 Suckling. Tumor left and middle lobes cerebellum. Death from shock in forty-eight hours. 22 Von Berg- mann. Cyst in Rolandic region communicating with lateral ventricle. Death in four weeks from meningitis. 32 Wood and Agnew. Right temporo-sphenoid- al lobe. Death from hemorrhage. 34 Thomas. Tumor, three ounces, mid- dle central convolutions. Death in three days. 37 Verco. Hydatid cyst adherent to temporo - sphenoidal lobe. Death from meningitis with temperature 104° F. 43 Barton. Rolandic gyri syphilitic gumma with necrosed bone. Death in a month from encephalitis. 44 Lampiasi. Tubercle size of egg in cerebellum. Death in four days. 46 Knapp and Bradford. Tubercle, 35% grms., mid- dle ascending frontal convolution. Death from shock in three-quarters hour. 64 68 Bullard and Bradford. Keen. Cheesy tubercle in cere- bellum. Tumor size of filbert five centimetres from end of occipital lobe. Sinus opened ; death from hemorrhage. Death in fourteen hours. 6!) Castro. Tumor size of walnut over Rolandic fissure. Death from epidemic diphtheria affecting wound. 81 McBurney and Starr. Very large glio-sarcoma from frontal lobe. Death from shock in few hours. Table V.-Tumor Removed with Fatal Result. Table III.-Tumor not Removed, Temporary Recovery. 45 Horsley. Tumor middle lobe cere- Life prolonged in com- bellum; removal occipi- tal bone in two opera- tions. fort for two years. 27 Heath. Large adherent growth over ascending frontal convolution. Relief and prolonged re- covery. 35 Limont and Page. Temporary recovery; recurrence of growth. 39 Kocher. Tumor cerebellum diag- nosed. Double trephining re- lieved intracranial pressure, arrested op- tic neuritis. 49 Maudsley and Tumor a solid nodule fixed Recovery with persist- Fitzgerald. to temporal bone. ent blindness and deafness. 15 Birdsall and Sarcoma at tip of occipi- Death from hemorrhage Weir. tai lobe ; softened con- tents removed. in a few hours. 54 Clarke. Subdural growth over up- per end fissure Rolando adherent to longitudi- nal sinus; partial re- moval. Death from septicaemia on nineteenth day. 59 Eskridge. Glioma left frontal lobe reaching beyond fissure Rolando; too large for removal. Death in eight days. 78 Nixon. Bone necrosed over tu- mor ; operation at this point; neoplasm is com- pletely removed ; carti- laginous, adherent to longitudinal sinus. Death fifth week from secondary hemorrhage from wound. 83 Starr and McBurney. Cysto - sarcoma middle lobe cerebellum: tapped but could not be re- moved. Death in a few days. Table IV.-Tumor not Removed, Fatal Cases. Five out of these 16 cases are tumors of the cerebellum. Five cases on Table IL, one on Table III., and one on Table V., were also cerebellar; thus 12 out of the total number of 46 unsuccessful cases, or twenty-six per cent. The death from diphtheria (Castro) and that due to accidental opening of the cerebellar sinus (Bullard and Bradford) are theoretically avoidable. The case of glio-sarcoma removed by McBurney had been correctly diagnosed eleven months before, and the operation then advised. At that time it might have been successful, so that in this case the fatal issue may fairly have been at- tributed to the delay. It may perhaps be assumed that Operation on tumors too large for removal, when the cranial opening was really made over the seat of the le- sion, have not always proved so dangerous as in the class of cases just described. Thus, Horsley (Case 45) re- moved first one half of the occipital bone, then the other, 135 Brain. Brain. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) the five deaths caused by septic meningo-encephalitis could have been avoided by more perfect antiseptic pre- cautions. The fatal issue is not clearly explained in the cases re- ported by Gray, Thomas, and Keen. The last case is particularly interesting, because the tumor had been cor- rectly localized in the cuneus on account of the symptom of hemianopsia. It is the only case in the entire collec- tion where this symptom was thus rendered available. In 39 cases the operation was successful. The situa- tion of the tumor in these cases is shown in the next table. Table VI.-Successful Cases. B u S 4> 5-° Name. Diagnosis and Operation. Locality. Result. 2 Macewen. Tubercular membranous mass removed from right ascending frontal gyrus. Rolandic region. Recovery complete. 10 Horsley. Upper part middle third Rolandic region. Ibid. Recurrence tumor in three months; death in six months. 9 Ibid. Tumor thumb centre in ascending parietal gyrus. Ibid. Complete recovery ; disappearance of epilepsy and paralysis. 11 Ibid. Tumor hand centre pressing on Broca's convolution. Ibid. Recovery; persistence, but arrest of hemi- plegia. 17 Macewen. Tubercle size of hazel-nut top of ascending parietal. Ibid. Recovery. 18 Ibid. Cyst size of filbert base of left ascending frontal gyrus. Ibid. Recovery. 19 Ibid. Yellow mass over upper part right ascending convolutions. Ibid. Recovery. 20 Lucas Cham- pionniere. Large hyperostosis over left ascending frontal convolution. Ibid. Recovery, with persistent hemiplegia. 21 Rannie. Degenerating gumma from right ascending frontal. Piece of dura and brain removed. Ibid. Recovery, with cessation symptoms. 23 Seguin and Weir. Sarcoma size of almond one inch below posterior edge second frontal and anterior edge precentral gyrus. Ibid. Perfect health six months after operation ; signs of recurrence later. 29 Pean. Growth from dura over left ascending convolution ; fibro- lipoma. Ibid. No more epileptic attacks two months after operation. 30 Fisher. Sarcoma pressing on left central convolution. Ibid. Recurrence of tumor two months after oper- ation and death. 38 Mercanton. and Coinbe. Tumor middle left ascending frontal reaching to island of Reil. Ibid. No record, but presumed recovery. 48 Oppenheim. Glioma in cystic degeneration lower part ascending convolu- tion. Ibid. Complete recovery. 49 Graham. Hydatid cyst upper portion fissure Rolando. Ibid. Recovery, with blindness. 50 Church. Spider-shaped sarcoma over left arm centre ; decortication one-quarter inch. Ibid. Recovery ; recurrence epilepsy in two months. 56 Dumin. Anterior convolutions. Ibid. Recovery ; sudden death in four months after operation. 57 Bremer and Carson. Cavernous angioma at fissure Rolando. Ibid. Recovery. 62 McCall An- derson. Tumor at thumb centre right parietal convolution. Ibid. Perfect recovery ; no attack for eight weeks. 66 Mills and Keen. Small sarcoma from pia pressing upon central convolutions. Ibid. Recovery ; diminished severity attacks. 72 Llobet. Motor convolutions. Resected temporal bone. Ibid. Recovery, only memory not returned in three months. 61 Reynier and Blocq. Cyst over central convolutions extending to frontal gyri. Ibid. Cyst drained in first, removed in second operation; no attacks during three and one-half months. 60 Doyen. Very large cyst behind bulging bone. Ibid. Cyst drained for six weeks, 360 c.c. fluid at one time. 70 Poirier. Vascular tumor central gyri. Ibid. Recovery ; freedom from epilepsy. 29 Pean. Right leg centre. Ibid. Recovery ; cessation epilepsy at two months. 75 Hitzig. Cyst size of goose-egg. Ibid. Recovery. 76 Von Bram- mann. Cystic tumor at fissure Rolando. Drained twice ; removed at third operation. Ibid. Recovery. 77 Ibid. Spindle-ceiled cysto-sarcoma in Rolandic area. Ibid. Recovery. 85 Stieglitz and Gerster. Tumor arm centre. Ibid. Recovery, but symptoms recurrence six months later. 16 Markoe. Hemorrhage cyst over parietal lobe ; depression skull. Gummous tumor size of walnut under right parietal eminence. Parietal lobe. Recovery. 33 Parker. Ibid. Recovery on eightieth day. 24 Keen. Fibroma base third frontal convolution, reaching to fissure Rolando. Frontal lobe. Recovery eighty-fourth day; epileptic at- tack five weeks later. 6 Durante. Fibro-sarcoma, 70 grammes, in anterior fossa. Ibid. Prompt recovery, persisting four years after operation. 74 Hitzig. Tumor, 280 grammes, posterior part frontal lobe. Ibid. Recovery. 79 Clegg. Exophthalmos ; removal sarcoma with eyeball. Ibid. Return of pain and attacks in four months. 26 Fitzgerald. Echinococcus behind left temple. Ibid. Recovery. 28 Macewen. Nodule on skull between ascending convolution and frontal lobe. Tumor of dura at frontal lobe. Recovery for eight years. 71 Booth and Curtis. Erosion of bone at angular process frontal. Tubercle frontal lobe. Recovery. 36 Maunsell. Cyst four inches long, three inches broad. Cerebellum. Recovery; blindness persists. These cases of recovery include one, and only one, case of tumor of the cerebellum, and that was a cyst. This is to be reckoned against 12 fatal cases of cerebellum tumor, already noted. As might be expected, in the im- mense majority of successful cases the tumor is situated in the motor convolutions (29 out of 39 cases). This region unites all the conditions of success, facility of diagnosis, facility of operation, relative freedom from danger of shock. Among the unsuccessful cases the tumor was situated in the central convolutions only 7 times, and in one of these the death was purely acciden- tal, due to an epidemic diphtheria. In all the others death was due to septic meningitis, in one case, also syphilitic. In one a communication existed between the tumor and the ventricle ; in another, there was an adhe- sion to the longitudinal sinus. The symptoms of lesion of the central convolutions are so well marked that when the tumor exists in this locality it cannot easily be overlooked. It sometimes happens, however, that tumors in other localities simu- late the symptoms proper to disease in the cortical motor centres. Thus : 1. The tumor may be situated in the subcortical region of the centrum ovale, as in Gray's case (84). The diagnosis in this case, notwithstanding the monoplegia, was correctly made as subcortical, on ac- count of the absence of spasm or convulsion. 2. The 136 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Brain. Brain. tumor may lie in the frontal, parietal, or temporal lobes, and by transmitted pressure excite the symptoms proper to the motor area. The diagnosis, when possible, is made out by observing that lesions of intelligence, or speech, or sensibility, or vision, especially hemianopsia, have pre- ceded motor symptoms, and that the latter remain incom- plete- paresis, not paralysis. 3. Tumor of the basal ganglia may simulate cortical tumor. This occurred in Case 58 (Kerr). It is rather surprising that the mistake has not been made more frequently. That it has not, is due to the enormously valuable studies in "Jacksonian epilepsy," that may be ranked as the second link in the chain of investigation which, beginning with the re- searches of Hitzig and Ferrier on brain localization, have so rapidly led to brain surgery. Only one tumor of the occipital lobe has been operated at its site, the diagnosis having been guided by the remarkable symptom hemi- anopsia (Birdsall and Weir, 15). In Pilcher and Dana's case (31) the tumor occupied the left occipital lobe, but the operation was made at the site of a scar corresponding to the angular gyrus. The tumor, therefore, was not found. It is not stated whether the patient was examined for hemianopsia. It is claimed, especially by Starr, that an onset of symptoms with psychical changes is very characteristic of tumors of the frontal lobe. Such mental depression, however, is apt to occur with intracranial tumors in any locality, and cannot be considered a distinct indication of frontal lobe localization until, by extension backward, motor symptoms began to complicate the mental; or un- til conjugate deviation of head and eyes has become a signal symptom in convulsive attacks ; or until anosmia be discovered. In several of the frontal lobe tumors here recorded an external lesion coexisted and guided the operator to the exact locality. It seems to have become accepted that a fairly large opening through the skull is preferable to the small tre- phine openings originally chosen. With such large flaps much greater facility is offered for detecting a tumor, whose remote pressure symptoms had confused the pre- operative diagnosis (see Gray's case). From the foregoing record of cases we may deduce several propositions, which, collectively, contain the sum of new knowledge acquired in the treatment of brain tumors during the past decade. In the first place, it has been demonstrated that it is practicable to open the cavity of the cranium, to pene- trate the dura mater, to lay bare the brain, and even to excise portions of its tissue. The successful removal of brain tumors has restored to favor as a legitimate surgi- cal procedure the old operation of trephining, which had fallen into desuetude. * So far this surgical resto- ration has proved more useful in other cases of brain dis- ease than in that which is the subject of this chapter (see chapter on " Brain Surgery "). But the fact will al- ways remain interesting, that it was the greater exploit of excising a cerebral neoplasm, which has, in entirely modern times, encouraged surgeons to the lesser effort of trephining for cerebral abscess and traumatic hemor- rhage ; and revived the old rules of unhesitating trephin- ing in traumatic cases with depressed fracture. Again, when Hughlings-Jackson first began to study the precise order of development of the sensori motor phenomena in the class of convulsive attacks which now bears his name, their habitual dependence upon organic brain lesion had not yet been established. This has now been shown, and the cases of brain tumor attended by attacks of Jacksonian epilepsy have assumed the most favorable prognosis, because the fact of the at- tacks usually indicates that the tumor is situated in the cortex of the central convolutions, and from the details of the attack the exact motor centre may be inferred. Pursuing still further the line of thought, neurological surgeons have argued that if a tumor in the motor area de- termines a definite series of explosive symptoms-sensori- motor irritation, followed by sensori motor paralysis- (SUPPLEMENT.) the occurrence of such symptoms, apart from indications of intracranial tumor, implies that the same motor region is irritated, though in some other way than by a neoplasm. Many cases of epilepsy, hitherto considered a functional disease,* have therefore been trephined, and in many of these, organic lesions, as cicatrices, have been removed from the surface of the brain or meninges, with the result of allaying or arresting the convulsive attacks. Finally, even in the absence of all visible lesion, portions of cor- tical tissue have been excised containing the centres of motor representation corresponding to the limb seg- ments whose spasm initiates the attack. It is not within the province of this article to discuss this latest and most interesting development of surgical method, which began with removing the tangible organic causes of epilepsy. We may observe, however, that the signal symptom of the attack (the felicitous expression is Seguin's), which is held to localize the lesion, because indicating the point of earliest and most intense irrita- tion, does not necessarily show that the irritation origi- nates at this- point. It is quite as possible that the nerve- tissue has received an irritation propagated from some distant region, but not manifest until it has spent itself upon a motor centre and thence determined a nervous discharge. Excision of the motor centre, therefore, would not remove a cause of the spasm, but only the first effect, of some possibly inaccessible cause. From the frequent failure of the operation as a cure for epilepsy one may suspect that some such condition of things often exists. The difficulty in these non-organic cases is paralleled in cases of tumor, where, though the convulsions are immediately initiated by irritation of the cortical motor area, the causal lesion is situated in some other part of the brain and cannot be found. Another parallel has a more hopeful aspect. It has been sometimes found in cases of inoperable tumor that the symptoms due to pressure-vomiting, headache, and convulsions-could all be relieved when the pressure was lessened by trephining or removal of large pieces of cranial bones.f It seems therefore possible that in cases of epilepsy without gross or focal lesion, and before irre- mediable degeneration had set in, similarly afforded relief of intracranial pressure might arrest the disease. Traumatism, even when not more severe than that of a fall on the head, has always been recognized as an impor- tant factor in the etiology of brain tumors. Out of the 85 cases of operation on record, there is a history of a fall or a blow in 204 Morbid symptoms rarely develop very soon after the accident : months, sometimes years, inter- vene. In the light of the experience now accumulated, it is indicated to operate very early after the appear- ance of symptoms indicative of intracranial neoplasm ; and the indication is especially formal if there is a his- tory of previous traumatism. It is possible, as Seguin's case shows, to operate so early that the tumor has not yet grown large enough to be found at the operation. This is, however, the only case on the list where the oper- ation failed from this cause ; only when the tumor is situ- ated entirely on the surface of the cortex is it liable to excite convulsive twitchings while yet very small; but in such a situation the tumor should be easily found.§ The danger of delay in operating is well shown in the first case of Starr and McBurney (Case 81). Eleven months intervened between the establishment of the diagnosis (when the operation was first proposed) and the time when the patient's consent to the operation was secured. In that time the tumor grew to such a size that its removal was followed by death from shock in a few hours. * According to the present view, non-local izable, i.e.. generalized epi- lepsy depends upon a diffused microscopic sclerosis (Fere, Les Epilep- sies) or a degeneration and vacuolation of ganglion cells (Dana, Treat- ise on Nervous Diseases). t Horsley (see Case 45) removed first one half, then the other half of the occipital bone, "and the patient lived in comfort two years." t Cases 1, 3, 5, 16, 18, 24. 31, 37, 38. 41. 49, 55, 58, 68, 74, 76. 76, 80. 82. Case 38 is particularly interesting. It is that of a little girl in a Swiss school who was struck on the head with a ruler by her teacher. § In Case 50 (Church) the tumor was a spider-like, filiform growth, ex- tended on the surface of the central and frontal gyri. * Horsley, in a learned lecture, claims to have found evidence of operative trephining on the skulls of prehistoric men. 137 Brain. Brain. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) The development of optic neuritis is not always pro- portioned to the size of the tumor, but much more to its situation. Hence, as has long been known, optic neuritis appears early and advances rapidly with tumors of the cerebellum, where the intracranial pressure is at its maxi- mum. An early operation is often indicated to relieve this pressure before the optic nerves should have atro- phied, in which case the patient would remain blind, even though be survived the operation and were re- lieved of other urgent symptoms.* An important decision formulated by Horsley is that syphilitic tumors should be operated on, and not left to the uncertain influence of internal treatment. Bergmann, on the other hand, maintains the sufficiency of this treat- ment, and the superfluous risk of the operation. If it be assumed that all tumors of the cortex and cen- trum ovale are conceivably operable, the proportion of operations to cases would be forty-one per cent., since 266 out of 649 cases of tumor are situated in these two localities. If to these be added 162 cases of the cere- bellum the proportion would rise to sixty-five per cent, (table quoted on p. 132). The special difficulties surrounding tumor of the cere- bellum have already been emphasized. The general diagnosis is relatively easy, that is, it is usually easy to diagnose a tumor of the posterior cranial fossa and sub- tentorial. It is often difficult to distinguish between the middle lobe of the cerebellum and a lateral lobe ; and usually impossible to distinguish between tumor of the bone compressing the cerebellum and tumor of the organ itself. A precious aid in diagnosticating tumors of the occipital lobe from those of the cerebellum is the exist- ence of hemianopsia in the former, as against optic neuri- tis in the latter. Case 41 (Keetley) shows how a tumor of the pons may be mistaken for a cerebellar tumor, when by exception the paralyses of cranial nerves, so character- istic of pontine tumors, are lacking. The prognosis in cerebellar tumors, however, is rendered bad, far less by the difficulties of diagnosis, than by the special dangers of the operation which have already been mentioned. In the centrum ovale and cortex, on the contrary, the dangers of the operation are at the minimum, provided the tumor can be found. The difficulty of finding it depends upon : 1st, whether it lie in a latent zone or in one whose symp- tomatology has been determined : 2d, upon its proximity to the surface ; 3d, upon the differentiation of its con- sistency with that of the brain. The accessible regions of the cerebrum whose lesions have so far been connected with sufficiently definite differ- ential symptoms, are as follows : Parietal lobe: Anterior convolutions or superior parietal lobule. Posterior convolutions: Angular gyrus. Occipital lobe: Cuneus. Temporal lobe : First convolution. Tip of lobe. Island of Reil. Incomplete symptoms of irritation or paresis of motor symptoms, usually de- veloped after general symptoms of brain tumor ; diminished sensibility; loss of muscular sense. Apraxia (?). Homonymous hemianopsia. Stagger- ing. ataxia, from pressure on cerebellum (sometimes). Sensory aphasia : motor spasm and pa- resis as tumor grows upward. Combination of motor aphasia from pressure on Broca's convolution, with sen- sory aphasia. Aphasia of transmissibility. Tumors of the centrum ovale are always latent, un- less they become very large, or are near enough to the surface to affect the cortex. By lesion of the motor tracts they cause paralysis unpreceded by spasm. Two cases are recorded (cases of Sciammana and Gray) where tumors of the centrum ovale escaped detection at opera- tion. In Sciammana's case (3) the locality was not diagnosed, and the trephine applied over a misleading scar. In Gray's case (86) the position was made out with great precision, but the failure was due to the third operative difficulty which has been mentioned, namely, the soft consistency of the tumor. This difficulty can never be foreseen in advance, and seems to be as great with large as with small tumors. Possibly some future therapeutic resource will enable the surgeon to prepare his patient for operation by the in- gestion of some food or drug which should change the consistency of the tumor. For details of cranio-topography, operative procedure, and technique, and the special dangers incident to the operation for brain tumor, the reader is referred to the article on " Brain Surgery," by Dr. Keen, in Vol. VIII. of the Reference Handbook? Mary Putnam-Jacobi. 1 Surgical Treatment Diseases of Brain, translation from Beilin edition, in Wood's Medical and Surgical Monographs, 1890, New York. 2 Horsley, British Medical Journal, 1890, reports without detail several such cases of similar trephining. BRAIN, VESSELS OF THE. Arteries, Medidural.- The furrows of the medidural artery on the entocranial wall deepen with years, and in old age the artery sinks quite into them. It has two primary branches, a larger cephalic and a caudal, the former again soon (at the sphenoidal angle of the parietal bone) separating into two secondary rami. The anterior ramus runs up behind the coronal suture, though a little more obliquely, being, according to Marchant, pretty constantly from 0. to 13 mm. (averaging 5 to 6 mm.) away at the foot of the sut- ure, about 1 ctm. at its middle, and 15 mm. at its dorsal part. The second ramus starts on the entotemporal sur- face 4 ctm. behind the pterion, on an average. At its middle, on the entoparietal surface, it averages 54 mm. behind the coronal suture. Farther dorsad, the distance is very variable, 30 mm., more or less. The primitive caudal branch leaves the temporal squama 58 mm. behind the pterion, then goes toward, and becomes parallel with, the lambdoidal suture. The relations of these vessels to the subjacent cortex, important clinically, Duchaine sums up thus : 1. The cephalic branch runs up opposite the frontal lobe some ctm. before the central fissure, rather nearer the coro- nal suture. 2. The mid-ramus starts almost opposite the fissure, then runs up some ctm. behind it. 3. The caudal branch is always a ctm. or more distant from the fissure, and is still further separated above. Variations in the Basal Arteries.-Dercum offers "A Collection of Anomalies of the Circle of Willis" (Jour, of Nerv. and M. Dis., 1889, Jan.), and J. II. Lloyd (Ibid., 1890, p. 225) gives such a case of a type described by Duret (right vertebral absent, both precerebrals from left caro- tid, etc.). St. John Bullen (Jour. Mnt. Sei., 1890, Jan., p. Frontal lobes : t Posterior and second frontal convolution. Left third frontal convolu- tion. Central convolutions. Marked and primary impairment of in- telligence. Spasmodic conjugate deviation head and eyes to side opposite lesion at begin- ning of epileptic attack : agraphia (?). Motor aphasia ; anosmia on side of lesion (sometimes); secondary incomplete irritative or paralytic motor symptoms ns tumor extends backward ; exophthalmos, unilateral (sometimes). Spasm, followed by paresis or paralysis, both permanent or intermittent, and oc- curring in attacks of Jacksonian epilepsy or as signal symptoms in general con- vulsion, in one or more segments of face or limbs innervated from the known motor- centres. * See Case 49 (Graham). In the article on Brain Tumor in the Refebence Handbook it has been noted that choked disk is some- times due to neuritis from diffused cerebritis, sometimes also to direct pressure on the optic tract. + The following case illustrates the possible latency of a tumor of the frontal lobe: Boy, aged eight. Extensive joint disease right elbow and left tarsus. Thirty hours before death convulsion for the first time. Began on left side, with spasmodic closure eyelid, twitching in face, neck, arm, leg. Wave of convulsion then passed rapidly to right limbs. Examination, then made for first time, discovered double optic neuritis and anosmia. Death. Tumor. 3| inches long, 2| inches thick, at base of right frontal lobe, extended from one half inch of tip of frontal lobe to point corresponding to section through bases of first and second frontal convolutions, one inch anterior to fissure of Rolando. Came to surface at junction of third frontal with orbital gyrus. The tumor lay imme- diately behind and external to the root of the olfactory nerve. 138 Reference Handbook OF THE Medical Sciences Plate XXXV. Fiy 1. Fig 2. Fig 3. Arterial Supply of Oblongata (from Adamkiewicz.) REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Brain. Brain. 33) bases the following statements on the examination of 1,565 brains (from the insane), but holds statistics too un- certain. Arterial variations occur much oftener in gen- eral paralytics than in those dying of other forms-this applying equally to all segments of the circle of Willis. However, such anomalies are more common in the post- communicants than in all the others. Of these vessels : 1, Either may be absent ; 2, may be replaced by a branch from the subcerebellar, internal carotid, postcerebral, or two small nutrient branches respectively from the last two vessels ; 3, may supply unusual regions ; or, 4, may be unconnected with the carotid system. The precommunicant may be absent, or merely rudi- mentary, or double. Either of the postcerebrals may, 1, be absent; 2, be a branch of the carotid system ; 3, be replaced by a large postcommunicant; or 4, by two thread-like vessels from the basilar. Either precerebral may, 1, be replaced by two small trunks; or 2, be absent, its region being supplied by branch- es of the opposite artery. Only occasional variations are attributed to the vertebrals : 1, absence of one, the existing vessel being joined by a branch from the oppo- site carotid ; 2, both may join the basilar on the same side ; 3, or one may be represented by two or three branch- es before entering the formation of the basilar trunk. Prechoroid Artery.-In general Kolisko's work corrob- orates that of Heubner. In a large number of examina- tions this vessel was never absent. It has a pretty con- stant diameter of | mm. In the foetus it is relatively very large. In animals (dogs, cats, rabbits) it was regu- larly present, but arose from the Sylvian. The branch to the uncus was always present, but has free anastomoses in the pia. The branches in plexus and tela also anasto- mose freely with others near ; but those to the brain- substance are terminal. The prechoroid supplies the following parts : The pos- terior arm of the internal capsule, with the lamina med- ullaris externa of the thalamus to the level of the upper angle of the mid-lenticular segment-usually only the posterior two-thirds ; the white substance back of the internal capsule as far as the roof of the medicornu ; the inner lenticular segment ; the uncus ; the optic tract (in its posterior half) ; the lateral choroid plexus ; the en- dyma of the posterior and lower parts of the paracoele ; the greater part of the tail of the caudatum ; exception- ally the external parts of the upper half of the thalamus. But the posterior arm of the internal capsule is also in part supplied by the medicerebral and postcommunicant (the anterior third of this part by the latter vessel), the deeper parts by the prechoroid and postcommunicant, and the upper parts (above apex of mid-lenticular seg- ment) by the Sylvian (lenticulo-optic ramus of Duret). Circulatory disturbances in the supply-territory of the prechoroid cause opposite hemiplegia by softening in the posterior segment of the internal capsule, involving the pyramidal and cranial-motor tracts. Hemianaesthesia, hemianopsia, and hemianosmia may likewise follow closure of the prechoroid, but are usu- ally headed off by collateral supply. Where the postcommunicant is large, its blocking may cause opposite facial and hypoglossal paralysis, since these tracts traverse the front part of the posterior arm of the capsule. Arteries of Oblongata.-The recurrent spinals from the vertebrals are given as follows by Kadyi. Immediately after the vertebrals traverse the dura there arises from each a 1 mm. thick branch (dorso-myelic), which, after giving up twigs to the restiform body, descends along the dorsal border of the lateral columns of the cord. This is homologous with other branches entering by the dorsal nerve-roots. Sometimes this arises from the vertebral in common with the postcerebellar. Near the union of the vertebral to the basilar there arises-usually one on each side, though unequal-the myelic branch for the ventro-myel. These two, how- ever, either soon or oftener after entering the spinal canal, combine to form the azygoid ventri-myelic artery. They are thus continuous and homologous with the other myelic arterioles coming in along the ventral nerve-roots. (SUPPLEMENT.) A full consideration of the minute details of the arterial distribution in the oblongata is given by Adamkiewicz. These vessels come wholly from the upper (intra-cranial) part of the vertebrals as they cross the ventral surface of the oblongata. The main facts regarding the three classes of secondary or nutrient arterioles (external or surface vessels) he accepts from Duret: 1. The radicals, direct from the ver- tebrals, supply the outgoing nerve-roots (facial, acoustic, glosso-pharyngeal, vagus, accessorius, and hypoglossus). 2. The nuclears, at right angles from the one or two dorso- inyelics in an extent of 3 to 4 ctm. These penetrate the median fissure, at the bottom of which they form a kind of sagittal leader, and end beneath the floor of the metepi- coele (fourth ventricle). 3. Arteries for the other por- tions of the oblongata (olivary bodies, pyramids, corpora restiformia), in part at least from the myelics. Moreover, on the oblongatal surface is a rich net-work of vessels. The ventro-myelics opposite the oblongata give off a multitude of twigs that take a very sinuous course and soon settle into the furrows. For the dorsal surface of the oblongata there is no external supply until below the calamus-upper end of myel. Its source is the dorso-myelics. These latter, at the first cervical roots, turn caudad between the accessory nerve-roots (nearer the dorsal), and when at the level of the fourth or fifth cervical roots, they end by also anastomosing with ves- sels of louver origin. From the middle portion of the vertebrals, between the ventro- and dorso-myelics, arise the largest branches (sub- cerebellars), but these dodge the oblongata and are wholly for the cerebellum. Topographically, he distinguishes three sets of finer or nutrient arterioles (internal or substantial vessels) after the manner of the myelic supply. 1'. Ventro-fissurals, relatively large, dividing in the ventral commissure into two branches, one to each side for the corresponding ventro-mesal cinerea. In the oblongata these supply principally the pyramidal tracts and decussation, lem- niscus, interolivary tract, raphe, and the following nuclei -gray dorsal columna, n. pyramidalis, n. arciformis, oliva, and hypoglossus. 2'. Dorso-fissurals, of course only caudad of the cala- mus. These divide at the dorsal commissure into two border vessels, and are for the substance of the dorsal columns, nucleus gracilis, accessorius centre, and casu- ally the hypoglossus. 3'. Coronal, radial, or lateral system. These are very numerous, penetrate the alba from all sides (excepting of course the metepicoele), and in part reach the subjacent cinerea to then help form its mass of capillaries. A sub- class here-nuclear arteries-consists of 6 to 8 relatively large twigs entering the angulus restiformia olivaris and running parallel toward the middle of the floor of the me- tepicoele, to supply principally the centres for glosso-phar- yngeus, vagus, hypoglossus, and acusticus. The follow- ing parts receive these radial or lateral affluents-the ventral columns, lateral nuclei, lateral cornu, caput of substantia gelatinosa, nuclei cuneati gracilis, arciformis et pyramidalis, and the oliva itself. Width of Brain-arteries.-To make a relative estimate of the capacity of the arteries at the base, Bevan Lewis (" Examination of Brain," 1882, pp. 20-22) determined their average diameters in 45 cases (insane). That of the vertebral was, r. 3.147 mm., 1. 3.42 ; of basilar, 3.82 ; of postcerebral, r. 2.658,1. 2.56 ; of carotid, r. 3.951, 1. 4.02 ; of inedicerebral, r. 3.133, 1. 3.55 ; and of precerebral, r. 2.73, 1. 2.66. The sectional areas are of course pro- portional to the squares of these diameters. As a rule, the united areas of branches equal very nearly the area of the parent trunk-excepting the preponderance of the vertebrals over the basilar (22.4 to 14.8). Lowenfeld has found that the relation of the artery- width to the brain-weight is, even normally, somewhat variable, and that often, though not by any means in all cases, the width of the brain-vessels rises and falls with the width of the aorta; moreover, that not rarely abnormally small brain-arteries occur in otherwise well- developed arterial systems. He also made out a difference 139 Brain. Bride8-les*Bains. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. in the two sides, the left carotid being usually wider than the right. Pressure in the Brain arteries.-A further matter, noted by St. John Bullen (I. c.) may partially indicate the relative pressures in the main brain-arteries. He remarked athe- roma of the basal vessels in 410 of 1,565 autopsies, or 26 per cent, of the total. It was present to a considerable extent, either generally dispersed, or in special trunks only, in 175 cases, and to a less extent in 235. The relative frequency by location was : medicerebral, 38 per cent.; basilar, 30 per cent.; postcerebral, 21 per cent.; carotid, 10 per cent. Mendel (1891) has found experimentally that the press- ure in the cortical arteries is materially less than that in the carotids, while that in the striatal arteries is not materially less. This he attributes to the fact that the latter are ter- minal vessels, though it is doubtless quite as much due to their less cir- cuitous supply. He further thus ex- plains the frequency of hemorrhage in the striatal region. Tedeschi's conclusions regarding the brain-arteries refer in part to moot points, but really contain noth- ing new and are deceptive in state- ment. Veins. - The careful work of Hedon traverses this field along ap- proved lines, and represents largely a verification of the work of others. Oblongata Region. - The ventro- rnesal chain of myelic veins is con- tinued cephalad on the ventral sur- face of the oblongata to the furrow between this and the pons, there connecting with a fine venous net- work over the surface of the latter (Kadyi). This plexus in turn also connects with the veins of the cere- bellum and of the base forward. Besides irregular smaller ones, there are in particular two constant and considerable veins passing from this plexus, one on either side along the trigeminal nerve to the sinus petrosus (or cavernosus). From the above-mentioned chain on the ventral surface of the oblon- gata, between the pyramids, there frequently arises a little trunk (up to | mm. or more thick) that joins one of the hypoglossal root-bundles and passes out with it through the precondyloid foramen-doubtless a part of Luschka's plexus venosus hypoglossi. The dorso-myelic chain of veins is continued cephalad over the oblon- gata. From a constant mesal vein here a small veinule traverses the arachnoid, covering the cisterna magna. Sometimes this adjoins the accessory nerve, and Kadyi thinks it probably empties into the sinus plexus about the foramen magnum. Among the cerebellar veins He- don, referring to Merkel, mentions one that " comes from the flocculus and empties into the superpetrosal sinus. An impor- tant branch of this vein rises from the interior of the cerebellum in the region of the dentatum, receives also veins from the cerebellar medi-peduncle, and emerges with the peduncle under the flocculus. The main trunk can acquire a very considerable size when it receives a branch of the basilar vein " (Precerebellar vein, Fig. 67). Other Veins.-A point once described by the writer has recently (1889) been more carefully gone over by Mittpnzwpi c. In 900 phspu Iip fnnnd KQ in whinh thn (SUPPLEMENT.) pre-supracerebrals (to only 9 in which the post-supra- cerebrals) jumped over from the piarachnoid to the dura at 3 to 4 ctm. from the long sinus-thus favoring their rupture, as he thinks. The post-perforating veins come, according to Hedon, from the cinerea of the walls of the diaccele, and even from the mesal surface of the thalamus. He also claims that in the striate nuclei the perforating veins anastomose with those going toward the cavities and Galen's system. He further recognizes the communications in the medi- cornu between the choroidal and the infra-cornual veins. Developmental.-From various peculiarities in the vas- cular supply of the human brain, more especially the caudad displacement peripherally of the post-supracere- Fig. 67.-Veins of the Base (% nat. size). The two sides represent respectively the more common arrangements of these veins. Those of the myel and oblongata are largely after Kadyi. AA, supracerebrals; B. ramus to olfactory bulb; CC, subfrontals; D. precerebral; EE, Sylvian or insular; F, medicerebral (to cavernous sinus); F', post-medicerebral (per temporal sinus to superpetrosal); GG, preperforantes; H, postperforantes: I, subcerebral (to Galen's vein); I', subcerebral (when emptying at base); JJ, subcornuals ; KK, precerebellars ; LL, hypoglossals (to precondyloid emissary); M, postcerebral (to lateral sinus); N, paracerebellar (to lateral sinus); O, ventrimyelic (anterior spinal). bral veins, the writer has adduced evidence favorable in a general way to Hill's theory, and showing further that in any such rotation the brain and pia have glided caudad upon the dura and brain-case. Here may be added a casual observation of a persistent foetal form, made at the autopsy of a child of 22 months, dead of tubercular meningitis. The large left inedicere- bral vein took the temporal course in a deep groove (per temporal sinus, intradural), and passed out at the fora- men jugulare spurium instead of passing to the supra- petrosal sinus, first, however, connecting with a much 140 Reference Handbook OF THE Medical Sciences. Plate XXXVI Fig / Fig 3. Ficj 4 Brain-Vessels (Iide expl atudioi/ at end of article). REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Brain. BrideM-les-BainN. smaller prepetrosal sinus. No such appearance on the right. Sinuses. Occlusion.-By experimental blocking of the dural sinuses in the dog, Ferrari (1888) has shown that a large part of the whole sinus system, e.g., all the si- nuses of the calvarium may be rendered impermeable without injury to the functions of the brain. However, occlusion of the collective blood-efferents from the skull is of course quickly fatal, being usually preceded by an epileptic attack. But all this and more had been already determined by clinical experience in man. Lateral Sinus.-Korner (1889) has shown that intracra- nial disease from caries of the petrous is more frequent on the right, and from a study of 449 skulls he attributes this to the fact that the lateral sinus at its sigmoid flex- ure enters deeper into the mastoid and the petrous pyra- mid on the right than on the left, and thus on the right approaches nearer the primary focus of disease. In 22 cases on the right and 8 on the left, there were gaps in the bony partition. He also holds that in the brachy- cephali the sigmoid excavation goes lower and deeper than in the dolichocephali, and that hence in the former such encranial sequelae follow more readily; but this has been disputed by Schiilzke. Birmingham, of Dublin (Brit. Med. Journ., 1890, ii., 683) from an examination of 100 recent dry specimens, points out that the relations of the lateral sinus to the surface are extremely uncertain, owing both to variations in the sinus curves and to irregularities in the bones. It begins opposite the external occipital protuberance in fifty per cent. ; lower (by never more than | inch) in thirty-three per cent. ; and higher in seventeen per cent. It does not run forward horizontally, but is distinctly arched. The bend of the sinus where it turns down at the asterion may vary, within wide limits, from a gentle to a very sharp curve. It then runs down in front of the post-mastoid margin, about 1 inch behind the meatus, and turns into the jugular foramen about J inch below the level of the meatus floor. Occasionally the sinus is only q'j inch from the surface. Venous Outlets.-Possibly a couple should be added from Hedon. Small rami accompany the olfactory bun dies through the cribriform plate of the ethmoid, of course connecting above with the vein of the olfactory bulb. " A vein leaves the aqueduct of Fallopius by the stylo-mastoid foramen to anastomose with the external jugular or post-auricular (Sperino). It joins, according to Blandin, a small dural ramus traversing the hiatus of Fallopius.'' Lymphatics.-The previous recorded results of Ross- bach and Sehrwald, regarding lymphatics in the brain- substance, are evidently discredited by Frommann (Centbl. f. med. Wissc., 1888, pp. 881-2). As regards the hypophy- sis, Pisentiand Viola (Ibid., 1890, pp. 451-2) believe that certain structures observed by them represent lymph- spaces. A cortical lymph-connective system has been studied by Bevan Lewis. Little evidence of lymphatics in the myel is found by Kadyi. The perivascular spaces of His occur, but are likely of artificial origin. From the results of one injec- tion he figures a net-work of voluminous canals running longitudinally beside the central canal, and that possibly represent a lymphatic system. Bibliography. Des Ruptures de 1'Artere miningee moyenne, par le Dr. F. Duchaine. Paris, 1890, pp. 115. Die Arterien des verlangerten Markes vom Uebergang bis zur Briicke. Von Prof. Dr. A. Adamkiewicz. Vienna, 1890. [Reprint.] Ueber die Beziehung der Art. choroidea anterior zum hintern Schenkel der innern Kapsol des Gehirns. Dr. A. Kolisko. Vienna, 1891, pp. 56. Ueber die Blutgefasse des menscblichen Riickenmarkes. Von Prof. Dr. H. Kadyi. Lemberg, 1889, pp. 152. Etude anatomique sur la Circulation veineuse de 1'Encephale, par Dr. E. Hedon. Paris, 1888, pp. 96. The Arrangement of the Supra-cerebral Veins in Man, as bearing on Hill's Theory of a developmental Rotation of the Brain, by William Browning. Journal of Nervous and Mental Disease. 1891, November. [Anatomy of Veins of Posterior Part of Head, of Neck, and Base of Skull], by Grigor Svijachenitioff. 1889, St. Petersburg. (Treats of ex- tra-cranial veins, emissaries, etc.) William Browning. (SUPPLEMENT.) EXPLANATION OF PLATES. Plate XXXV. Arterial Supply ok Oblongata (from Adamkiewicz), Enlarged & Diameters. Fig. 1. At Decussation of Pyramids. Hs, Dorsal Column. g, Boundary between Py and Vr. Ng, Nucleus gracilis. S, Arteria sulci. Nc, " cuneatus. Sa, A. sulci (at deeper layers). Sgc, Substantia gelatinosa cen- Acc, Aa. centrales cornuuni ante- tralis. riorum. Cep, Caput cornu posterioris Aca, Aa. cornu anterioris. (aut Tuberculum Rolando). Anl, A. nuclei lateralis. XII, Root of hypoglossus. As R, A. tuberculi Rolando. Vr, Remnant of ventral column. Anc, A. nuclei cuneati. Prk, Decussation eminence. Ang, Aa. nuclei gracilis. Py, Pyramid. F, A. fissur®. Fig. 2. Opposite Middle of Metepiccele. H. Hypoglossus nucleus. Na, Nucleus arciformis. Va, Post. Vagus nucleus. S, Arteria sulci. Po, Ponticulus (velum nredullare See, Affluents to external nest-like posticum). capillary coils, from sulcus ar- Gl, Glossopharyngeus nucleus. tery. Ac, Acusticus nucleus. Sei, Affluents to inner same. Lb. Longitudinal bundle. Aoli, Sub-lateral olivary artery. (Krause's respiratory fasciculus.) Aso, Olivary ramus from sulcus ar- Cr, Corpus restiforme. tery. X, Ant. Vagus nucleus. Aoli, Sub-olivary arteries. IX, Root of Glossopharyngeus. Aolm, Medilateral olivary artery. Aro. Angulus restiformio-olivaris. Aois, Super-olivary artery. O, Oliva. An, Arteries of the nuclei (Glosso- No, Nucleus pyramidalis. pharyngeus, vagus, hypoglossus). Ozs, Interolivary tract. Vn, Nuclear vessels (glossopharyn- R, Raphe. geus, acusticus). Py, Pyramid. F, Arteria fissur®. Fig. 3. Longitudinal Section Through Olivary Body. O, Oliva. Aoli. Aa. oliv® laterales inferiores. Br, Pons. An, Aa. nucleari®. Plate XXXVI. Fig. 1. Sinus Cavernosi et Intercavernosi-Sinus Circularis of Ridley. Inferior aspect of a corrosion-preparation from a child, with aSerents and efferents (somewhat enlarged, and also arbitrary as to execution of smaller vessels). From Langer's " Der Sinus cavemosus der harten Hirnhaut," Sitzbr. d. k. Akad., 1885, Vienna (Fig. 5). Vo, Vena ophthalmica superior et inferior. Sic. Sinus intercavernosi. E, Emissary veins passing through the oval foramen to the pterygoid plexus. Spi, Sinus petrosus inferior. L, Space for the dorsum ephippii. Fig. 2. Fine anastomotic net work between three arterial twigs in the pia of the parietal region. (Lucas, 1879.) Fig. 3. Very perfectly injected vessels of a choroidal villus. Two hilus- vessels, a vein, and an artery. Loops, vascular nets, etc. Enlargement, 50 diameters. (From Luschka's " Die Adergeflechte des mensch- lichen Gehirns." 1855, Taf. ii., Fig. 2.) Fig. 4. Lobule of a choroidal villus ; one portion bare of epithelium. Sinuous vascular loop. Enlargement, 500 diameters. (Also from Luschka.) a. = Portion covered by epithelium. b. = Fibrillary connective tissue. c. = Structureless connecting substance extending well beyond the cap- illaries. BRIDES-LES-BAINS. A watering-place in Savoy, near Moiitiers, France. Location.-Brides-les-Bains is situated in a beautiful valley, with picturesque surroundings, about 1,800 feet above the level of the sea. The climate is mild and in- vigorating. Facilities for interesting excursions are plentiful, although the place is somewhat difficult to reach. Access.-From Paris, by the Paris, Lyons & Aledi- terranean Railroad, vid Chambery, to Albertville ; thence by stage in about three hours to Brides. Analysis.-One litre of the water contains : Gramme. Chloride of magnesium 0.3071 Chloride of sodium 1.3601 Chloride of potassium 0.0670 Chloride of lithium traces Sulphate of soda 1.6113 Sulphate of magnesia 0.1941 Sulphate of lime 1.8200 Bicarbonate of lime 0.4380 Carbonate of iron 0.0112 Carbonic acid gas 0.0837 The temperature of the springs varies from 85° F. to 95° F. 141 Brides-les- Hains. Bright's Diseases. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Indications.-These waters are employed in a great variety of affections, such as obesity, liver complaints, abdominal plethora, gastralgia, constipation, vesical ca- tarrh, affections of the prostate gland, haemorrhoids, cere- bral congestion, neuralgia, migraine, sterility, heart affec- tions, diabetes, gravel, and diseases of women. It is said that the waters, if taken in the morning before break- fast, in doses of from one to three glasses per day, are tonic and aperient in their effect ; in stronger doses, of from four to eight glasses per day, they become laxative and purgative. They have the advantage that they can be taken daily for a long period as a slight purgative without causing the irritation produced by other more active waters. Season, middle of May to end of Sep- tember. Accommodation.-The Grand Hotel des Thermes is modern and good. The Etablissement des Bains is equipped with the usual appliances for bathing, sprays, etc. There is a small Casino, and mild amusements are provided. The place is quiet, and devoid of fashionable life. Edmund C. Wendt. BRIGHT'S DISEASES OF THE KIDNEY, DELA- FIELD'S CLASSIFICATION OF. Since pathologists have learned to distinguish the various diseases of the kidneys, formerly grouped under the one designation of Bright's disease, there has been an effort made to do away with this name as one that is indefinite and even misleading ; yet so strong a hold has it acquired in the popular language that it is doubtful whether it will ever be supplanted. And, indeed, it is not necessarjr that it should cease to exist as a synonym for disease of the kidneys, for popular medical nosology knows as little of, as it cares for, pathological distinctions. It is, however, exceedingly desirable that the name should be dropped from scientific nomenclature, as its retention only serves to create confusion in the minds of students and to ob- scure the subject, at its best not a simple one, of the pathology of renal diseases. No modern writer would publish a work on pulmonary diseases and call it a treatise on " Consumption," yet it would be just as proper a term for diseases of the lungs as "Bright's disease" is for those of the kidney. Writers have of late come to realize the inconvenience of this term, and have endeavored, after freeing them- selves from the bondage of the name, to study renal diseases as distinct affections and group them scientifi- cally, for a proper classification is essential to a clear comprehension of these different affections. The favor- ite method of grouping these diseases has usually been according to the part of the kidney involved, and we have therefore had such terms as " parenchymatous nephritis," " arterio-sclerosis," " glomerulo-nephritis," etc.-unsatisfactory enough, since the same inflammatory process may involve widely different parts of the organ, or the same parts may undergo varied and dissimilar pathological changes. A much better classification of diseases of the kidneys is one according to the nature of the morbid process, such an one as was proposed a few years ago by Professor Francis Delafield, of New York, which has commended itself to many pathologists and clinicians by reason of its simplicity and reasonableness, and which has already been adopted by many teachers and writers on renal diseases. A request had been made of the editor of this Handbook that, in case a supple- mentary volume should be issued, place might there be given to an exposition of this mode of classification ; and although Dr. Delafield was unable to prepare such an article, he very kindly placed his material at the dis- posal of the present writer, with permission to draw therefrom freely. He has also revised the article, so that the views here expressed may be regarded as his own. No attempt at originality of composition has been made, since the object of the writer was simply to give a resume, as brief as might be consistent with clearness, of Dr. Delafield's published writings on the subject ; and therefore the author's arrangement has been closely fol- lowed throughout, and in many places his very words have been borrowed. Any long extract taken bodily (SUPPLEMENT.) from his article in the American Journal of the Medical Sciences for October, 1891, has been marked by inverted commas. There are three morbid processes concerned in the production of the various pathological changes in the kidneys formerly included under the term "Bright's disease," viz., congestion, degeneration, and inflamma- tion. These three processes may be further divided according as they are acute or chronic, or as the inflam- mation is exudative simply, productive, suppurative, or tubercular. The Bright's diseases of the kidneys may therefore be classified as follows : I. Congestion. Acute. Chronic. II. Degeneration. Acute. Chronic. III. Inflammation. Acute exudative. Acute productive or diffuse. Chronic productive or diffuse. Suppurative. Tubercular. With exudation. Without exudation. I. Congestion.-Acute congestion of the kidney is a transitory condition caused by the ingestion of certain poisons, by traumatism, by operations, especially those on the bladder or urethra, by extirpation of one kidney, by over-exertion, or by taking cold. There are no alterations in the renal tissues, the only change in the organ being the engorgement of the blood- vessels. Congestion may occur, however, not only in a normal kidney, but in one previously diseased, and in this case the lesions of the pre-existing disease will, of course, be present. The urine is diminished in quantity, or, at times, even suppressed. It may contain albumin and casts, and oc- casionally blood : the specific gravity is, as a rule, un- changed. Usually constitutional symptoms are slight or absent, but in cases following surgical operations on the urethra or bladder, or extirpation" of the other kidney, there may be considerable depression of the vital forces, ending in collapse, or a typhoid state with mild delirium may supervene. Acute renal congestion is usually re- covered from, though it may in rare instances cause death. Repeated attacks, however, may lead finally to inflammation of the kidney. The treatment consists in confinement to bed and in securing free action of the bowels and skin, the latter being accomplished by means of heat applied to the sur- face of the body. Chronic congestion of the kidney is a secondary condition of engorgement of the renal vessels, following long con- tinued interference with the venous circulation. It may be due to aortic or mitral disease, dilatation of the heart, excessive pleural effusions, pulmonary emphysema, or other obstructive diseases. The kidneys are smooth, with non-adherent capsule, and are usually enlarged, though exceptionally they may remain of normal size ; they are heavier than healthy kidneys and are also darker in color. The capillaries of the glomeruli are dilated and thickened ; the veins of the pyramids are always, those of the cortex rarely, distend- ed. There is commonly either swelling or flattening of the epithelium of the cortex tubes, although it occasion- ally appears to be unchanged. The urine varies in quantity, but is usually diminished, the proportion of urea, however, being commonly in- creased. The specific gravity is ordinarily about 1.020 to 1.025, but may vary all the way from 1.010 to 1.035. There is little or no albumin, and casts are generally ab- sent, though both may at times be found. The general symptoms are those of the primary disease, and the treat- ment is to be directed to this almost entirely. The prognosis is grave, chiefly because of the tendency of chronic congestion to pass into chronic inflammation of the kidney. II. Degeneration.-Acute degeneration of the kidneys is a secondary condition caused by the action of arsenic, mercury, or phosphorus, or of one of the toxines formed 142 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Brides-les>Bains. Bright's Diseases. in the body during the course of certain of the acute in- fectious diseases. The lesions are confined to the renal epithelium, being most marked in that of the convoluted tubes. Here we find the epithelial cells simply swollen and irregular in outline, infiltrated with granular matter, disintegrated, containing hyaline masses, or in a state of coagulation necrosis. The kidneys are usually somewhat enlarged, with smooth surface and non-adherent capsule. When the degenerative process has been very rapid the blood- vessels are irritated and we then have congestion and ex- udation of serum, and thus a secondary exudative in- flammation is added to the degeneration. The urinary changes and general symptoms are in pro- portion to the extent of the degenerative process. In mild cases, such as occur with the acute infectious dis- eases, there are no symptoms beyond a moderate amount of albumin and some casts in the urine. But in severe cases, such as accompany yellow fever, or follow poison- ing by arsenic, mercury, or phosphorus, albumin and casts are found in large quantities, white blood-cells are present, and the urine is scanty or even suppressed. The specific gravity of the urine is normal and there is no dropsy. In mild cases recovery is the rule, but in the more severe ones the kidney lesion is a direct menace to life. There is no treatment for the degenerative changes, but if secondary exudative inflammation occurs the indi- cation is to cause free movement of the bowels and dia- phoresis. Chronic degeneration of the kidneys, like the acute form, is a secondary process. It results from the same causes that may produce chronic congestion, or from alcohol- ism and vicious modes of life, or it may occur in the course of certain chronic diseases. The degenerative changes are confined to the epithe- lium of the convoluted tubes which is swollen and the seat of fatty infiltration. When chronic congestion co- exists the lesions of the glomeruli associated with that condition-dilatation and thickening of the capillaries- will be present. The kidneys are usually increased in size, though they may be normal or even smaller than in health ; the surface is smooth. The pyramids are red, while the cortex may be whitish, yellow; or pink in color. The urine may be increased in amount, scanty, or sup- pressed, the quantity varying in different cases and at different times in the same case. It frequently contains albumin and casts, but the specific gravity is not low- ered and the relative proportion of urea is not decreased. The health of the patients is impaired ; they fall away in flesh and strength, become anaemic, and finally pass into the typhoid state with delirium and stupor. Dropsy is not a symptom of chronic degeneration of the kidneys. Treatment is usually ineffective, and the disease pro- gresses steadily to a fatal termination, at best retarded only by the therapeutic measures employed. Of course, the exciting cause (alcoholism, irregular mode of life, etc.), should be removed or minimized as far as possible. III. Inflammation.-The varieties of inflammation of the kidneys are : Acute exudative nephritis. Acute productive or diffuse nephritis. Chronic productive or diffuse nephritis with exudation. Chronic productive or diffuse nephritis without exuda- tion. Suppurative nephritis. Tubercular nephritis. Acute Exudative Nephritis.-This is one of the forms of kidney disease known as acute Bright's disease, acute parenchymatous, tubal, or desquamative nephritis, etc. It is "an acute inflammation of the kidney, character- ized by congestion, exudation of the blood-plasma, an emigration of white blood-cells, and a diapedesis of red blood-cells from the vessels ; to which may be added swelling or necrosis of the renal epithelium and changes in the glomeruli." The disease occurs as a primary in- flammation or may complicate any of the acute infec- tious diseases or the puerperal state. In mild cases there are no marked changes in the kid- neys, the inflammatory products in the Malpighian bodies and tubes being discharged with the urine as fast as they are exuded. In more severe cases we find the red and white blood-cells, serum, and coagulable matter from the blood-plasma in the tubes, Malpighian bodies, and stroma, especially in the cortical portion. The kidneys are in- creased in size, smooth, and intensely congested. The epithelium of the cortex tubes is often flattened, as in the chronic congestion secondary to heart disease, or it may be swollen, or more rarely degenerated and detached. In some cases there is, in addition to the flattening of the cells, a uniform dilatation of all the convoluted tubes. Irregular masses, formed of coagulable matter from the blood-plasma, and hyaline casts are found in the tubes, the latter being more abundant in the straight tubes, the former in the convoluted ones. Red and white blood- cells may also be found in the tubes. When there is an excessive emigration of wdiite cells these are usually found collected in foci in the cortical portion, and not uniformly distributed throughout the kidney. In the glomeruli the capsular epithelium is swollen and there is also a swelling and growth of the cells cov- ering the capillaries. In consequence of this latter change, although the outlines of the main divisions of the tufts may be visible, those of the capillaries are lost. In some cases the walls of the branches of the renal ar- tery within the kidney are seen to be thickened, a result chiefly of the swelling of their muscle-cells. The urine in mild cases of acute exudative nephritis is somewhat diminished in quantity, of normal or high specific gravity, and contains albumin and hyaline, gran- ular, and epithelial casts in moderate numbers, and oc- casionally blood. The constitutional symptoms are often insignificant, consisting merely of a slight malaise, head- ache, and some aching in the back and limbs. The con- stitutional symptoms last from one to two weeks, the urinary changes from four to five. In severe cases the changes in the urine are much more pronounced. The quantity is greatly reduced, or it may even be suppressed ; the specific gravity is not lowered and may be raised ; there is a large amount of albumin, casts are abundant, and epithelium and white and red blood-cells are often present. The amount of albu- min and casts in the urine is usually, though not always, proportionate to the severity of the disease. The consti- tutional symptoms are also more marked. " A febrile movement with more or less prostration ; stupor, head- ache, sleeplessness, restlessness, muscular twitchings, and general convulsions ; dyspnoea, loss of appetite, nau- sea, and vomiting; a pulse of high tension with exag- gerated heart-action, or hypertrophy of the left ventricle, dropsy, and anaemia-these may be called the character- istic symptoms of acute exudative nephritis. Of these symptoms a certain number-the fever, the prostration, the loss of appetite and nausea, the anaemia, the diminu- tion in the quantity of urine, the albumin and casts in the urine-are such as would naturally accompany an acute inflammation of the kidney, and very often they are the only symptoms which do accompany it." In a certain number of cases there are, in addition to these features, cerebral symptoms, dropsy, and changes in the heart and circulation. That these do not, in all cases at least, depend upon the diminished excretion of urine is evidenced by the fact that they are often absent in patients who are passing very little urine, and are often present in persons who are passing an abundance of urine of normal or high specific gravity. It is not improbable that they depend upon some morbid state, whether spasmodic or inflammatory, of the arteries and capillaries, whereby the passage of blood through them is impeded. In cases in which there is an excessive production of pus-cells the symptoms not infrequently resemble very closely those of acute meningitis. " The invasion is sudden, with a high temperature and marked prostra- tion. Restlessness, delirium, headache, and stupor are soon developed and continue throughout the disease. The patients lose flesh and strength and pass into the 143 Bright'* Diseases. Bright's Diseases. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) typhoid state. Dropsy is slight or absent altogether. The urine is not so much diminished in quantity as one would expect; its specific gravity is not changed ; albu- min, casts, and red and white blood-cells are present in considerable quantities, but not always early in the dis- ease, and may even be absent altogether." This form occurs in children or adults as a sequel of diphtheria, measles, or scarlatina, or it may be a primary inflammation. It is uniformly fatal, but fortunately is not of very common occurrence. The prime indication for treatment is to relieve the congestion of the kidneys, avoiding as a rule the use of diaphoretics or cathartics. This congestion is relieved partially and temporarily by means of the hot-air bath, dry or wet cups, hot applications to the lumbar region, or the exhibition of small doses of calomel or magnesium sulphate repeated at short intervals until the effect upon the bowels begins to be manifested. In order to prevent the cerebral symptoms the condition of the circulation should be closely watched. As soon as signs of increased tension of the arteries and labored action of the heart become evident, drugs to relieve this state should be given. These are aconite, nitro-glycerine, chloral hy- drate, and opium ; they should be given in small doses at regular intervals, but if the cerebral symptoms appear threatening then large doses by the rectum or subcutane- ously are'Called for. The patients are to be kept in bed and put on a fluid (milk) diet until the disease begins to subside ; then solid food may gradually replace the milk, and iron and oxygen will be indicated to overcome the anaemia. Acute Productive or Diffuse Nephritis.-This is an acute exudative inflammation of the kidneys, to the lesions of which are superadded certain characteristic changes in the glomeruli and a growth of connective tissue in the stroma ; its lesions are of a permanent character, and it is frequently associated with circulatory disturbances. It is very often met with as a primary disease, or it may complicate scarlatina, diphtheria, or the pregnant state. The kidneys are smooth in the early stages of the dis- ease, later roughened ; the pyramids are red, and the cor- tex is thickened, white, mottled with yellow and red, or congested. The lesions are those of exudative nephritis with the addition of a growth of connective tissue in the stroma and of an increase in the capsule cells of the Mal- pighian bodies. These additional changes, which are present from the first and are characteristic of this form of nephritis, are not uniformly distributed throughout the organ but are confined to strips or wedges following the line of the arteries. These wedges may be small, symmetrical, and few in number, or large, irregular, and numerous. Each wedge contains one or more arteries running up into the cortex and terminating in the tufts of the glomeruli ; the walls of these arteries are thick- ened, there is a growth of cells upon and in the capilla- ries forming the tufts, and the corresponding Malpighian bodies show an excessive growth of the capsule-cells ; in the stroma around these arteries, and parallel to them, is a growth of connective-tissue cells and basement substance. The growth of the cells lining the capsules is so great as to compress the tufts, the capillaries of which then become obliterated, and the glomeruli are finally changed into little balls of fibrous tissue. The new growth of connective tissue in the stroma leads to compression, and finally to atrophy, of the tubes around which it is formed. The urine is scanty or suppressed, of high specific grav- ity, and contains a large amount of albumin, many casts, and red and white blood-cells. Later, the urine becomes more abundant, of lower specific gravity, and contains fewer casts and less albumin ; or it may be that these less pronounced changes are present from the first. The general symptoms are headache, sleeplessness, muscular twitchings or general convulsions, anorexia, nausea and vomiting, dyspnoea, neuro-retinitis, diarrhoea, hyper- trophy of the left ventricle of the heart, increased arte- rial tension, loss of flesh and strength, dropsy often ex- treme, and finally delirium, stupor, and coma. These symptoms vary according to the intensity of the morbid process, and there are often remissions simulating com- plete recovery. The disease is, however, a progressive one, and although life may be prolonged for a consider- able period by appropriate treatment a fatal result comes sooner or later. The treatment is essentially a climatic one, residence in a warm, dry, equable climate being most important. In some cases, during the early stages, a measure of relief may be obtained by the plan of treatment followed in acute exudative nephritis. For the dropsy, diuretics, dia- phoretics, and cathartics are indicated ; sometimes punc- ture of the skin or tapping of the serous cavities becomes necessary; but occasionally this condition refuses to yield to any mode of treatment. The arteries should be watched, as in acute exudative nephritis, and if they be- gin to show signs of increasing tension the appropriate remedies mentioned above are called for. Chronic Productive or Diffuse Nephritis with Exudation. -This is a chronic inflammation attended with growth of connective tissue in the stroma, changes in the glomeruli, degeneration of the epithelium, exudation from the ves- sels, and sometimes changes in the walls of the arteries. The amount of exudation varies at different times, occa- sionally being so slight that little or no albumin is found in the urine. It should be remembered that the two forms of productive nephritis here described are essen- tially the same disease, differing only as there is or is not an exudation of serum from the blood-vessels in addition to the lesions of the productive inflammation. The disease may occur as a primary affection, may follow acute dif- fuse nephritis or chronic congestion or degeneration of the kidneys, or may complicate syphilis, tuberculosis of the lungs, bones, or joints, chronic endocarditis, or pro- longed suppuration. The kidneys are usually large, but may be small or of normal size, and are smooth, roughened, or nodular ; the cortex is the seat of an extensive growth of connective tissue, its tubes being atrophied in some places and di- lated in others; the straight tubes contain coagulated matter, cylinders, or blood ; the renal epithelium is swollen or flattened, broken, granular, or fatty. " The glomeruli are changed in several different ways : 1. There is a growth of the capsule-cells in such numbers that they compress the tufts. The cells covering the ca- pillaries are also increased in size and number. The cap- sule-cells may finally be changed into connective tissue and the tufts become atrophied. 2. The glomeruli are of large size, the cells covering the capillaries are increased in number so that the outlines of the capillaries are lost, but yet the capillaries are not compressed nor the glom- eruli atrophied. 3. There is a growth of the cells which cover the capillaries and of the cells within them. Of the cells which cover the capillaries the cell-bodies be- come very large, the capillaries are compressed, and the glomeruli eventually become atrophied. 4. The walls of the capillary vessels become the seat of waxy degen- eration, while the cells which cover them are increased in size and number. 5. If the nephritis follows chronic congestion, the capillaries are dilated and there is an in- crease in the size and number of the cells which cover the capillaries. The arteries remain unchanged, or they are the seat of obliterating endarteritis, or there is a symmetrical thickening of all the coats of the artery, or all the coats of the artery are thickened and converted into a uniform mass of dense connective tissue, or there is waxy degeneration of the walls of the artery." During the exacerbations of the disease the urine is generally diminished in quantity or suppressed, but dur- ing the quiescent periods it may be normal ; when the patients are doing badly, and often when they are drop- sical, the quantity is greatly increased. The specific gravity slowly diminishes as the growth of connective tissue in the stroma of the cortex increases or when the capillaries of the glomeruli become the seat of waxy de- generation. Albumin and casts are present, usually in large quantity, but varying according to the activity of the inflammatory process in the kidney. Dropsy is of very constant occurrence in this form of renal disease. 144 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Bright's Diseases. Bright's Diseases. (SUPPLEMENT.) being either continuous or coming and going from time to time. Other symptoms are marked anaemia, headache, sleeplessness, neuro-retinitis, cough, anorexia, nausea and vomiting, and dyspnoea. The latter when due to contrac- tion of the arteries or to failure of the heart's action, is often the first thing that attracts attention to the kidney lesion ; it comes on in attacks, especially at night and when the patient is lying down. The most constant symptoms are anaemia, dropsy, and albumin in the urine. The course of the disease is almost infinite in its va- riety : "1. There are cases in which the symptoms are nearly continuous, the patients get steadily worse and die within one or two years. The anaemia, the dropsy, and the albumin are constantly present, and the patients die with dropsy or with chronic uraemia. 2. There are cases in which the anaemia, the dropsy, and the dyspnoea come on in attacks which last for weeks or months. Between the attacks the patients are comparatively well, often able to work, although the urine always contains albumin. 3. There are cases in which a number of years before death the patient has an attack of dropsy, etc., from which he apparently recovers and goes on able to work, but with urine of low specific gravity, which sometimes contains albumin. After an interval of many years comes the fatal attack, with all the characteristic symptoms. 4. There are cases which for years have no symptoms but pallor of the skin and urine of low specific gravity containing albumin. These patients often for a long time feel so well that they cannot understand that they have a serious disease. 5. There are cases in which the first symptom is the attack of spasmodic dyspnoea, the patients otherwise feeling well. It may be months or years before the other symptoms are developed. 6. There may be a history of chronic endocarditis lasting for years before the renal symptoms are developed. 7. There are cases which apparently recover from the dis- ease." The best results are obtained by sending these patients to a warm, dry climate where they can be much in the open air. As the urine contains a proportionately small amount of urea, its quantity must be maintained above the normal, if possible. The dyspnoea, convulsions, co- ma, and other symptoms due to arterial contraction will call for nitrite of amyl, nitro-glycerine, chloral hydrate, or opium. Chronic Productive or Diffuse Nephritis without Exu- dation.-This form of nephritis is usually secondary to alcoholism, chronic lead-poisoning, gout, chronic con- gestion of the kidneys, hydronephrosis, or chronic pye- litis, or is brought about by the same conditions as those which cause emphysema, endocarditis, endarteritis, and cirrhosis of the liver. The kidney is usually diminished in size, the two to- gether often weighing only about one-half as much as one normal kidney. The surface is roughened or nodu- lar, the cortex is thin and red or gray in color. In not a few cases there is no diminution in size, and there may even be an increase, but in all cases the capsule is adhe- rent and the surface roughened. There is a progressive formation of new connective tissue in the cortex and pyramids, compressing and finally obliterating the tubes. The tubes not involved in the new growth become dilated, sometimes forming cysts of considerable size ; the epithe- lium of these dilated tubes may be flattened, swollen, cuboidal, degenerated, or fatty. When the disease fol- lows chronic congestion the glomeruli are large and there is a marked growth of cells covering the capillaries of the tufts ; in other cases many of the tufts are compressed by the excessive growth of their cellsand of those lining the capsules, and finally become converted into little fibrous balls. The capillaries of the glomeruli may also become the seat of waxy degeneration. The changes in the ar- teries are the same as those described as occurring in chronic nephritis with exudation. Among the complicating lesions of this form of chronic nephritis we find hypertrophy of the heart, valvular dis- ease, pulmonary emphysema, cirrhosis of the liver, peri- carditis, bronchitis, or gastric catarrh. The urine is usually increased in quantity, of a specific gravity of about 1.010, with little or no albumin or casts, except during exacerbations of the nephritis, and con- taining a diminished amount of urea. This is the typi- cal urine of chronic non-exudative nephritis, but it is sub- ject to important modifications. The specific gravity may remain constantly as high as 1.023, or it may fall almost to 1.000. In some cases several quarts of urine may be passed in the twenty-four hours, in others the secretion may amount to only a few ounces, or may even be suppressed entirely. Dropsy is ordinarily absent except in cases complicated by chronic endocarditis or cirrhosis of the liver. Head- ache is sometimes a most distressing symptom, and neu- ralgic pains in various parts of the body are not uncom- mon. Sleeplessness is often complained of. Muscular twitchings and convulsions may appear early or late in the course of the nephritis. Hemiplegia may occur early and continue up to the end, or may disappear after a few hours or days ; there may be several such attacks accom- panied by aphasia or coma, or there may be periods of delirium with elevated temperature and contracted ar- teries-acute uraemia. Instead of these acute attacks the uraemic symptoms may come on gradually ; the tempera- ture is then usually low and the pulse rapid and feeble. Neuro-retinitis, bronchitis, emphysema, cardiac hyper- trophy, valvular disease, chronic gastritis, and vomiting, one or more, are observed with more or less frequency in cases of chronic non-exudative nephritis. " Dyspnoea is a very frequent symptom, often the first symptom noticed by the patient. It is a spasmodic dysp- noea coming on in attacks which last for minutes, hours, or days. It is regularly made worse by mental or bodily exertion, or by the recumbent position. It does not re- semble pulmonary asthma. It is apparently due to the association of changes in the arteries and in the heart. With contraction of the arteries alone, or with a feeble heart alone, no dyspnoea may exist; but if the contraction of the arteries is so great that the hypertrophied and laboring heart is unable to overcome the obstruction, or if with the contracted arteries the heart becomes dilated or feeble, then the attacks of dyspnoea begin. At first the attacks are not severe and are of short duration, but if the mechanical conditions which cause them can- not be controlled they become longer and more distress- ing. " Perhaps the most striking examples of this dyspnoea are in the patients in whom it is the first symptom of the nephritis. They are apt to be middle-aged or elderly men, often engaged in large financial or commercial en- terprises. They profess that they feel quite well and that they can attend to their affairs perfectly, but that they are very much annoyed because early every morning they have an attack of asthma. In spite of their professions of good health, it is evident that they are pale and that they have dyspnoea on exertion. • The heart is found to be enlarged, with or without a murmur ; its action is either labored or feeble. The pulse is tense. The urine is of a specific gravity of 1.010 to 1.030 ; it contains no albumin, or only a trace. In the earlier stages of the disease this dyspnoea can be controlled, but later on it is more distressing and difficult to remedy." While chronic diffuse nephritis, like the chronic pro- ductive inflammations of other organs, may be a serious and fatal disease, like them it may also exist as a lesion which does not interfere with general good health and a long life ; and it is not at all uncommon to find evidences of the disease in persons who have died from other causes. The subjects of this lesion are, however, in constant peril, for though they may appear to be in fair health they are liable to succumb speedily to an attack of pneu- monia or pericarditis, or to the shock of a severe in- jury. " A very common form for the disease to take is that of attacks which are repeated a number of times, each attack worse than the preceding,-and the general health more and more impaired between the attacks. During the attacks there are cerebral symptoms more or less se- vere-headache, sleeplessness, delirium, stupor, coma, 145 Diseases. Caecum. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. convulsions. Dyspnoea may be present or absent. The arteries are contracted, with a tense pulse. There is loss of appetite, nausea, and vomiting. The urine is of low specific gravity and usually contains albumin. Between the attacks the patients at first seem to be fairly well, but later they gradually lose flesh and strength. The urine between the attacks is of low specific gravity and con- tains little or no albumin. They finally die in one of the attacks, feeble and emaciated. "In some of the patients spasmodic dyspnoea is the first symptom. This can often be controlled for months and years, and the patients then seem to be well. But after a time it is more difficult to manage, and other renal symptoms are added. In some cases there are no symp- toms for a long time, so that persons apparently in good health are attacked without warning by convulsions, coma, delirium, or hemiplegia. They may die in the first attacks or live to go through subsequent ones. In some cases the only symptoms up to the time of the patient's death are gradual loss of flesh and strength and disturbance of digestion, the patient dying feeble and emaciated. These cases are hard to make out, unless the specific gravity of the urine is low and a little albu- min is present. Otherwise there is nothing to draw attention to the kidneys as the cause of the illness. Loss of eyesight from nephritic neuro-retinitis may be the first symptom." The treatment consists mainly in a regulation of the diet and mode of life, and in change of climate. The use of alcohol and tobacco should be stopped, and starches and sugars should be removed as far as possible from the dietary, the ingestion of fats on the other hand being en- couraged. Residence in a climate that will permit of reg- ular out-door exercise is advisable, and a change of scene and air occasionally is most desirable. The condition of the heart and arteries should be most carefully watched, and any signs of beginning tension should be at once met by the exhibition of the arterial dilators. A weak heart calls for cardiac stimulants. The use of opium is apparently safe when the arteries are contracted, but if they are not, a very little opium may prove fatal. In general convulsions or sudden coma, hypodermic in- jections of from one-eighth to one-quarter of a grain of morphine may be of decided benefit; and in cases of restlessness or wakefulness, with persistent arterial con- traction, much relief may be obtained by an injection of one-eighth of a grain of morphine every three hours. The other forms of inflammation of the kidneys, namely, suppurative and tubercular, do not call for con- sideration here, as they are not properly included under the designation of " Bright's diseases." Thomas L. Stedman. BROMOFORM (Terbromide of formyl, CHBr3). In chemical composition it is analogous to chloroform, CHClg, and iodoform, CHI3. It is formed by the action of brominated lime on alcohol in the same way that chloroform is made from chlorinated lime and alcohol. It is a bright clear liquid, specific gravity 2.9, taste sweet, without causing any irritation to the mucous membrane of the mouth ; it has an ethereal odor, is almost insoluble in water, but is soluble in alcohol and ether. It is very volatile and is rapidly decomposed by light, bromine fumes being evolved which impart a pink color to the liquid. Bromoform possesses anaesthetic properties, but in a less degree than chloroform, the period of excitement is less pronounced, and the anaesthesia is of shorter duration. It is also a powerful antiseptic. A new application of this drug was brought to the no- tice of the profession in 1889 by Dr. Stepp, of Nuremberg, who advocated its use in whooping-cough. He claimed that the course of the disease was shortened in every in- stance, that the paroxysms were diminished in number and severity, and that complications were less frequent, and when present were benefited by the treatment. The dose he gave was as follows: From six months to one year, 2 minims three times a day ; from one to two years, 3 minims ; from two to three, 4 minims ; from three to (SUPPLEMENT.) four, 5 minims ; and from four to seven, 6 or 7 minims. In prescribing the remedy its high specific gravity must be remembered, one minim being equal to five drops. When administered internally no deleterious effects have been observed beyond an occasional sense of depres- sion and lassitude. Two cases of poisoning have been recorded. In each instance the child had taken a large dose of the pure drug; it produced profound depression and collapse, from which both children re- covered. The drug is best given in a teaspoonful of water ; it forms a " bead " in the water which is easily swallowed. It may be given in solution in water to which a small amount of alcohol is added, but should always be freshly prepared on account of its instability. How the drug acts is uncertain-whether as a specific, or on account of its germicidal properties, has not been determined. Dr. Stepp thinks bromine is excreted by the lungs after the drug has been decomposed in the system. The reports of others who have used it for this purpose corroborate the views of Dr. Stepp as to its efficacy in whooping-cough and its freedom from bad effects. Beaumont Small. BROMOL (Tribromophenol). Is formed by adding bromine water to a solution of phenol. It is deposited in white crystals, taste is sweet and astringent, odor re- sembling bromine ; it is nearly insoluble in water, soluble in alcohol, ether, oils, and glycerine. It has been introduced as an antiseptic in the treatment of wounds, ulcers, etc. Applied in its pure state it has a slight caustic action and favors the removal of sloughs. As a dressing it is applied in solution in oil or as an oint- ment, one part in thirty. It has been used in diphtheria as a local application to disinfect the throat and remove the membrane. When administered internally it is not acted on by the gastric secretions, and in the intestines is but slowly de- composed. Its action is therefore slow and prolonged. It is given in doses of 3 to 5 grains a day, and has proved of service as an intestinal antiseptic in cholera infantum and typhoid fever. For infants 4 to £ grain may be given at each dose. Beaumont Small. BUSSANG. A watering-place in the Vosges Moun- tains, France, used chiefly for " after-cures," although it boasts of several mineral springs. Location.-The situation of Bussang in the Vosges Mountains, about two thousand feet above the level of the sea, is decidedly attractive, on account of the hills and tine forests in the immediate vicinity. The climate is, on the whole, bracing and tonic. The air is pure mountain air, as Bussang is right among the higher mountain peaks of the Vosges, at the foot of the Dru- mont and Rouge Gazon. The Moselle River rises near the principal hotel of the place. Near the German fron- tier is the Col de Bussang, " one of the most picturesque points of the entire Vosges." Nir. Wolff states (" The Watering-Places of the Vosges") that, as a watering-place, Bussang owes its reputation to three chalybeate springs, only two of which are at present worked. The principal is the Source de Salmade, which is used only for drink- ing. There is not very much bathing, but the baths are well organized and clean, and very refreshing. Massage is often combined with them. In fact it could not be spared for bathing, because in the busy time something like ten thousand litres is sometimes bottled in a day. The annual sale exceeds one million two hundred thou- sand bottles. The water is only slightly mineralized, con- taining about 1.5 gramme of solid matter in a litre. On the other hand, it is so strongly impregnated with car- bonic acid, that carbonic acid intoxication has been known to result from too free use. The Bussang water is not, like many other chalybeate springs, constipating, having, on the contrary, a mild aperient effect. Access.-The village is reached from Paris, by way of Epinal, thence by stage or carriage. Analysis.-Two springs are found, both almost iden- 146 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Diseases. Creeuin. SUPPLEMENT.) tical in chemical composition. In one thousand parts there are found : are inferior to many French, German, and Swiss ones in point of food and furnishing. Edmund C. Wendt. CACTUS GRANDIFLORUS. This is the well-known plant, night-blooming cereus, of the order Cactacese. A native of Jamaica and the West Indies. It has been intro- duced as a cardiac tonic, and is said to have certain ad- vantages over digitalis. A fluid extract and a tincture are prepared. The dose of the former is from 1 to 5 minims. The tincture is made of the strength of one part in six of alcohol, and the dose is 5 to 10 minims, which may be increased to 30 minims. It has been rec- ommended to have the preparations made from the fresh plant. An alkaloid, cactina, has been separated which possesses all the active properties of the plant. The advantage that cactus grandiflorus has over digi- talis is its continuous stimulating action on the heart. Digitalis, it has been shown, acts first on the pneumogas- tric nerve, stimulating the heart and increasing the blood- pressure ; this is followed by a relaxing of the vaso-motor vessels and depression of the vagus. The new drug, on the other hand, is supposed to be free from this sec- ondary effect, and may be given for a prolonged period without producing exhaustion. It is likely to prove use- ful in asthenic rather than sthenic cardiac troubles. It is supposed to act on the medullary centre and through the pneumogastric and sympathetic on the heart. It is a stimulating tonic and invigorates the car- diac plexus, and promotes the nutrition of the heart. No ill effects have been observed from its use. It has been employed as a substitute for digitalis in cardiac dropsy and acted most favorably, its use being continued for some time, supporting the heart and circulation ; and in some cases in which repeated tapping had been required, this procedure wTas found to be no longer necessary. Its greatest use, however, appears to be in functional and neurotic affections of the heart, palpitation, irregu- larity, fluttering, slow or rapid action, and other condi- tions arising from debility, worry, dyspepsia, the exces- sive use of tobacco or tea, and such other conditions, where no organic disease exists. It has also been used with success in pseudo-angina pectoris and in exophthal- mic goitre, relieving the sense of oppression and pain, and producing a more regular action of the heart. Beaumont Small. C/ECUM AND APPENDIX, DISEASES OF. Since the first edition of this article our knowledge of diseases of the caecum and appendix has been increased greatly by observations made during the course of operations under- taken for relief of inflammatory conditions. It is recog- nized that more than ninety per cent, of all inflammatory conditions in the right iliac fossa commence in the appen- dix, and in a large number of these the starting-point is an aggregation of probably dried faeces within the appen- dix ; hence the term appendicitis has replaced the various other terms applied to inflammations in that region- typhlitis, perityphlitis, paratyphlitis. As our pathologi- cal information increases, unquestionably other terms will be coined, but, for the present, appendicitis is a good working word and suggests the origin of the trouble. Inflammation in the right iliac fossa occurs under many forms and much the larger proportion do not fall under the care of the surgeon, being curable by medical means alone. On the other hand, a certain number require prompt and immediate attention from the surgeon, and the ques- tion of diagnosis is one of paramount importance. It is not very difficult to lay down rules as to what cases should be subjected to such and such treatment, but when face to face with the patient it may be safely said that with our present knowledge an accurate diagnosis is not obtainable. Much better are we now able to recog- nize the condition of affairs about the appendix than a very few years ago, but much still has to be done, and no doubt the observations made during life and the con- ditions recognized during operations are the factors upon which we shall have to depend for future improvement. Increase of knowledge, based on clinical observation Salrnade. Marie. Parts. Parts. Silica .... 0.0041 0.0530 Oxide of iron .... 0.0059 0.0024 Red oxide of manganese .... 0.0019 0.0020 Alumina .... 0.0012 0.0011 Calcium .... 0.1519 0.1880 Magnesium .... 0.0500 0.0540 Carbonic acid (in combination).... .... 0.7390 0.7277 Arsenic . . .. 0.0005 0.0004 Sulphuric acid .... 0.0904 0.0800 Chlorine .. .. 0.0507 0.0497 Sodium .... 0.3495 0.2890 Potassium .... 0.0340 0.0204 Lithium .... 0.0012 0.0010 Phosphoric acid 1 traces Boracic acid, fluorine ) Total of solids .... 1.5414 1.4759 Free carbonic acid .... 2.8719 2.4934 Temperature . .. 54° F. 50° F. Indications.-Mr. Wolff is authority for the state- ments that, "the treatment at Bussang is not a very seri- ous affair. There is no restrictive diet of any sort. You go to Bussang mainly to gather strength, and pick up the crumbs dropped at more exhausting watering-places. Durand-Fardel, the acknowledged authority on French waters, recommends Bussang water for dyspepsia, gas- tralgia, and chlorosis, and as a capital substitute for Vichy in the case of people who cannot stand the strongly mineralized spring of that place. Dr. Onimus, the doctor of the spa, also speaks of excellent results obtained through its contracting action upon the bladder. Constantin James places it, for its effects, midway be- tween chalybeate and alkaline springs. Its main use is as what the French call a reconstituant, and for this ef- fect there could not be a happier combination of water and high position than is actually found at Bussang." Accommodation.-The village hotels are primitive. There is a good new Hotel des Sources, in close proximity to the bathing establishments. There are no particular amusements, and the place is decidedly " quiet." Edmund G. Wendt. BUXTON. One of the most popular thermal stations in England. Location.-Buxton is pleasantly situated in a pictu- resque part of Derbyshire, about thirty miles northwest of Derby. It is nine hundred feet above sea-level, and surrounded at some distance by hills of moderate eleva- tion. The mineral springs are the most noted in Eng- land, and the town resembles in its newer sections the fashionable Continental spas. The air is pure and brac- ing, but like other English resorts, the place is visited by too many damp and rainy days to be always enjoyable. The springs were known to the Romans. There are many public and private baths, and there is a large pub- lic hospital, the Devonshire Hospital, where the waters are much used. Season, June to October. Access.-Buxton is reached from London (St. Pan- eras Station) by the Midland Railroad in four hours. Analysis.-The principal ingredients of the Buxton waters are, carbonate of lime, carbonate of magnesia, chloride of sodium, chloride of calcium, silica, all in rel- atively small proportion. Indeed the efficacy of the springs is scarcely due to their mineralization, but almost wholly to systematic external use and the diluent action of pure water. The temperature of the springs varies from 60° to 82" F., and the water contains a large amount of nitrogen. There is also a chalybeate spring at Buxton, known as St. Anne's Well, but it is only sparingly used. Indications.-The Buxton waters are employed al- most exclusively in gouty, rheumatic, or lithaemic condi- tions. But dyspeptics, and sufferers from genito-urinary troubles are also sent there. Patients with hysterical palsies also go to Buxton in large numbers. Accommodation. - The Buxton thermal establish- ments are good, though less perfect in their appliances and comforts than many Continental places. The hotels are clean and typically English, which means that they 147 Caecum. Caffeine. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. during the past few years, justifies the opinion that ap- pendicitis occurs in females nearly as often as in males, and from very early childhood to middle life. The starting-point usually is the appendix, in excep- tional cases only is it the caecum, and then probably tuber- culosis exists. The inflammation appears to begin in the lining membrane of the appendix, and may be catarrhal in character, without obvious cause; but a concretion is found in very many cases, and this is probably the foreign body spoken of under the name of "prune-stone, date- seed, coffee-berry," etc., which have been occasionally referred to in the medical periodicals of the day. It is likely that a piece of beces has entered the appendix and, remaining for a certain time, has become dried more or less by absorption of the watery constituents ; or perhaps retained by a fold of mucous membrane it has become em- bedded and hardened by the process already mentioned. Certain it is that a foreign body has been found again and again to be present in cases of appendicitis, more often than could possibly happen by accident; hence, a place in the causation of the disease is to be given to the more or less large mass of hard substance-probably fe- cal-so often present. The coats of the intestine may give way gradually until the actual rupture takes place, or the thinning of the wall of the bowel may occur with successive attacks of inflammation. It would be ex- pected, as the intestinal wall becomes thinner, that ad- hesions between adjacent coils of bowel would take place, and that this does happen is testified to by the many cases of circumscribed suppuration about the appendix ; but occasionally the failure of adhesions to take place permits general septic peritonitis to occur. Just why an inflammation should take place in the appendix without the presence of the foreign body as an exciting cause, we are unable to say, but so many cases are met with at post-mortem inspection which give evidences of cured inflammation about the appendix that the fact has to be admitted. As the appendix is probably the relic of a large caecum existing formerly, it would be proper to consider this part of the intestine as an organ not capable of resisting disease to the same extent as do the other portions of the bowel; hence it would be the place of least resistance. The formation of pus is thus to be looked upon as an intra-peritoneal, not an extra-perito- neal formation. It has been my fortune, on one occa- sion, to be able to lift such an abscess, circumscribed by coils of the bowel, out through the abdominal incision and open it outside of the body. The point where the inflammation begins may be at the apex or at the base of the appendix, or between the two. When it is situated at the base of the appendix, the caecum is also found to be inflamed, but so soon as the pus forms it is not a matter of much consequence what is the extent or the exact local- ity of the abscess, for everything is tied up together. It may of course happen that the peritoneal adhesions are very dense, and the pus may make its way into the con- nective tissue about the caecum or other organ. The onset of an attack may be either sudden or gradual. In the latter case there will have been attacks of bowel disturbance, constipation and diarrhoea, with abdom- inal cramps, for a certain period ; not enough, perhaps, to have caused the patient to seek the services of a phy- sician, but sufficient to have caused a certain anxiety on his, the patient's, part. Perhaps the physician may have been consulted, but if so, it has been for indigestion or some slight disorder. In a certain number of cases the onset of the disease is acute, pulse and temperature both rise, acute pain is present and is referred to the right iliac fossa, although possibly elsewhere. The patient may be cognizant of a certain stoppage in the bowel, as he de- scribes it, and he becomes anxious. Pain, while generally referred to the locality mentioned, is not always so by any means. Sometimes the epigastric region is indicated, sometimes the navel, and sometimes a corresponding point on the left side of the abdomen. In one or two of my cases the pain has been referred to the right loin, not far from the spine. On one occasion, where the pain was referred to the epigastric region, it could be miti- gated or often made to disappear by pressure of the hand (SUPPLEMENT.) on the right groin. The place of greatest sensitiveness has been referred to a point inside the right iliac spine, about two inches distant on a line drawn from the ante- rior superior spinous process to the navel, which point is supposed to be over the base of the appendix. I have found this to be the case, and while pressure in that re- gion causes pain I have not been able to locate it so accu- rately as has been done by others. Rigidity of the ab- dominal muscles is very constant, and more often seen on the right than the left side, but it sometimes requires pressure to induce it. Temperature shown by the ther- mometer is generally not high, unless in the late stage of the trouble. Purulent septic peritonitis may exist with subnormal surface or mouth temperature. Rectal tem- perature is higher by several degrees than mouth or sur- face temperature. I attach much less weight, in forming my opinion of the patient's condition, to the amount of fever than 1 do to the condition as shown by the pulse. This latter is a vastly better index. Constipation is often present, and may be so marked as to be mistaken for ob- struction ; indeed a certain number of cases have been treated for obstruction. Doubtless the cause is paralysis of the intestinal wall in consequence of the presence of the inflammation, but a change from constipation to diar- rhoea, brought about by medicine, is seen in cases of abscess rather than in diffuse peritonitis. When, therefore, fre- quent passages are induced by medicines following an apparent obstruction, I am inclined to think that my pa- tient has escaped a general septic peritonitis. Tympa- nites. occurring early during an attack, is not favorable ; continuing constantly, it is not a favorable symptom, and if associated with constipation it indicates loss of power in the intestinal wall. Shock is marked when perfora- tion takes place, otherwise it is not a prominent symp- tom. Vomiting of the contents of the stomach, and sub- sequently of the contents of the upper part of the small intestine, suggests peritoneal involvement ; in general peritonitis the material vomited is apt to resemble finely cut spinach in color. The color changes to brown as the scene closes, and is apt to be very profuse in the last hours of life. (Edema of the abdominal wall is met with where an abscess is immediately adjacent. Tumor in the right iliac fossa is not found at the commencement of the attack, but may appear shortly. At first it is probably due to an adhesion of the intestines around the focus of primary inflammation or the swollen appendix. Later, as pus forms, the tumor naturally becomes larger if walled in by adhesions. Where the inflammation is not shut off by adhesion from the rest of the peritoneal cavity the tumor is wanting ; such cases are rapidly fatal and call for active interference at an early day. The rigor and chill may occur with the commencement of the inflammation, or later, but they are rarely wanting at one time or another. Free extension of the thigh often causes pain. Digital examination by the rectum is occasionally useful and should not be neglected, but will be of especial use when the intra-peritoneal tumor has acquired a cer- tain volume or where it extends downward toward the rectum. An appendix which hangs over the brim of the pelvis, if inflamed, may be recognized early in the disease by the rectal touch. In cases where inflammation extends into the pelvis, involvement of the peritoneal covering of the bladder may occur; hence, frequency in passing water is a symptom of value. It is usually accompanied by scalding along the urethra, with pain at the meatus, and spasm of the bladder, sometimes very severe. Fluc- tuation is not to be expected, although occasionally met with; its presence indicates a large amount of pus situ- ated superficially, and certainly is wanting in the early stage of the trouble. Its presence should not be expected, either for diagnosis or treatment. Percussion is rarely dull, for often, if pus is present, it will either be overlaid by intestine or so closely in relation therewith that dul- ness is wanting, and pus may be under the abdominal wall so that it can be cut into without difficulty, yet a tympanitic note will exist. The countenance is apt to indicate the gravity of the trouble moderately well ; dark circles about the eyes are not a hopeful sign, and appar- ent receding of the eyes within the sockets suggests ex- 148 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Caecum. Ca Heine. treme illness. The introduction of the needle of a hypo- dermic syringe into the affected area, with a view to the discovery of pus, is most unwise. I believe incision to be safer. There is no knowing just what the needle may reveal, and it may conceal much. A large number of cases recover from appendicitis, usually the catarrhal form, and they do not fall under the notice of the surgeon. A few days' rest and gentle pur- gation, and the patient recovers. Some cases, on the other hand, are not followed by perforation, but they induce suppuration within the peritoneal cavity, which becomes promptly circumscribed and walled in by adhesions of adjacent intestinal loops, thus shutting off the general cavity from infection. In another class of cases perfora- tion does take place, but this also is walled in as in the preceding class. Finally, another class exists in which perforation occurs, but without the walling in just de- scribed ; whereupon a general infection of the perito- neum follows. These latter cases die, with few excep- tions. The difficulty which presents itself to the phy- sician is the recognition of those cases which will be circumscribed and those which will not, and it is to be regretted that at present it is impossible to certainly dif- ferentiate between them. They are apt to be alike in commencement, for a certain number of hours, at all events, and yet early operation will prevent the rupture and general peritonitis in the one class, while in the other surgical interference is not needed. The term "early " used here is not intended to apply to the length of time that the attack has lasted. It does re- fer to the pathological condition, and refers especially to perforation, so that an operation undertaken soon after the commencement of the pathological condition which would eventuate in rupture, may be in the one case a few hours and in the other case several days after the com- mencement of the illness. The term "early," then, as ordinarily used, is a misnomer in my opinion. Probably a position of armed neutrality is the proper one for the physician to assume, and when I say physi- cian, I mean that the attending physician, if not a sur- geon, should promptly call in a surgeon, and together the two should conduct the case. It is right that the sur- geon should see the case from the start, but equally he should know how to withhold his hand, and not think, be- cause he is called in, that he should at once operate. In no class of cases is good judgment of more value to the patient, and equally may it be said that in no class of cases is a correct judgment more difficult to form. Per- foration usually takes place, if it takes place at all, in the first three or four days after the onset of the disease ; hence the necessity for forestalling a fatal rupture is ap- parent. Where the abscess is circumscribed, the opera- tor has time to open and drain, and general peritonitis is then very rare. Where perforation takes place without formation of adhesions, fatal peritonitis results. Such a condition should be prevented by prompt operation and removal of the appendix, which is the starting-point of the trouble. Only careful and continuous observation will enable the surgeon to recognize the necessity for in- terference. The pulse progressively increasing in fre- quency, the temperature rising or remaining high, acute pain on pressure in the right fossa, perhaps near the point already referred to, constipation present, with or with out a swelling in the right fossa, rigid right rectus- these are the indications which may be held to call for an operation. The pulse not frequent, diminishing pain, moderate temperature, absence of tympanites, will jus- tify the surgeon in waiting. The incision, when made, should be as long as may be necessary to give free access to the seat of disease, and the centre of the incision should fall on a line drawn from the navel to the an- terior superior spinous process, about two inches from the bone. The peritoneal cavity should be opened to the same extent as the skin incision ; unless the opera- tor finds adhesions closing in the seat of inflammation, these should not be disturbed. The coils of bowel are to be pressed aside, the seat of inflammation found, and the pus evacuated. In circumscribed cases the adhe- sions should not be ruptured, but the appendix should be sought for and explored by touch and sight, if possible ; if a concretion be present it should be removed and the ap- pendix tied off, but not if by such action the general peri- toneal cavity is likely to be opened. On the other hand, where no abscess exists and the appendix is the cause of the trouble, with or without contained concretions, the appendix is to be tied off by a ligature applied close to the caecum. It is well to apply pure carbolic acid to the stump. This removes the cause of the trouble, and is an operation essentially different from the one referred to first. The wound is to be lightly filled with gauze which will be removed later, and healing by granulation allowed. Whether it is necessary or not to flush the general peri- toneal cavity, will depend on the condition found. If suspicion of septic peritonitis exists it would probably be wise to do it. I do not think that it is necessary to re- move the appendix in all cases, especially in cases where pus is circumscribed. The appendix in these cases is generally closed by adhesive inflammation, and I believe that much injury is done by indiscriminate search for this organ by rupturing adhesions, rather than by leaving them alone after the pus is evacuated, and permitting the cavity to heal by granulation. A perforated appendix heals without difficulty. Opium I give rarely ; it produces quiet on the part of the patient without arresting-the progress of the inflam- mation ; hence it masks symptoms which might necessi- tate an operation. On the other hand, saline purgatives I use freely, for reasons already stated, hoping to produce frequent evacuations from the bowels. Irritants or blis- ters to the abdominal wall have yielded, in my hands, no good results ; more comfort follows the application of ice over the seat of inflammation. Recurrent Appendicitis.-Appendicitis is met with occasionally as a recurrent trouble, and the question will be raised as to treatment. It is impossible to say, first of all, whether the attacks are dangerous or not, or whether a person having escaped one, the next attack may not be fatal. Such a disease generally calls for operation, the chosen time being the period between two attacks. The operation which should be done will be the uncovering and the removal of the appendix, in which the cause of the trouble exists. Undoubtedly such an operation car- ries with it a certain amount of danger, but probably not so much as would be present with an attack of appendi- citis. Generally speaking, it may be said that where at- tacks of appendicitis recur with sufficient severity to cause much inconvenience, or imperil existence, then an operation is proper. On the other hand, slight attacks of cramp in the right fossa, unless there be some special in- dication, may be considered as a trouble which will cease without operative interference. Louis McLane Tiffany. CAFFEINE. This alkaloid and its salts continue to be used for their stimulant and diuretic properties, and nu- merous communications indicate that it still proves of service in headaches, migraine, neuralgia, cardiac debil- ity, and dropsy due to heart disease. It has latterly been advocated as a cardiac stimulant and restorative in the prostration and debility of typhoid fever, pneumonia, and post-partum hemorrhage. Two to four grains are advised to be given every four hours ; in the latter con- dition, where a more prompt action is required, eight or ten grains may be administered hypodermically. It also has been found that its diuretic properties are increased and its general effect improved by combining with par- aldehyd. Four or eight grains are to be used with thirty or forty-five minims of paraldehyd. Its diuretic action has been clearly shown to be due to a direct effect on the secreting tissue of the kidney, which, in addition to its action on the circulation, makes it a most effective and rapid diuretic. It differs from digitalis by this prompt- ness of action. The influence of digitalis is not exerted until the blood-pressure has been raised and then suc- ceeded by a relaxing of the renal vessels, which may not be effected for some days. The influence of caffeine is much more rapid, and may be noticed in a few hours. Notwithstanding the extent to which it has been em- 149 Caffeine. Canada. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) ployed and the success attending its use, our knowledge regarding the modus operandiot caffeine is meagre and un- satisfactory. To a very great extent it has been of an em- pirical character, and not based on any very precise data. Researches during the past few years have thrown some light on its effects on the circulation and metabolism, and on the ultimate effects produced by its administration, and as a result our views regarding its action on the heart must be greatly changed, and its continued use in cardiac debility must be guarded and cautious. In 1890 Professor Germain See presented to the French Acad- emy of Medicine the result of some experiments made by himself and M. Lapicque, to verify its reputed restorative and stimulating properties. These experiments, which extended over a period of twelve months, demonstrated very clearly its influence over the muscular system. He found that untrained men could perform long journeys and enter races without enduring fatigue or exhibiting any sign of distress. By the means of registering appa- ratus it was found that there was no alteration in the re- spiratory or circulatory rhythm, and numerous other facts proved that the use of caffeine enabled a trained or untrained person to perform muscular efforts that other- wise could not be undertaken. He concludes that small quantities, amounting to about ten grains in the day, may with advantage be given to soldiers on the march, or where any muscular effort is required, as it prevents shortness of breath and palpitation and supplies vigor and endurance. He considers that the caffeine acts on the cerebro-spinal centres, stimulating the motor nerves, favoring the combustion of nitrogenous elements, and promoting the excretion of carbonic acid and other prod- ucts of tissue change. By this means strength is fur- nished, not by supplying anything new, but at the ex- pense of the individual by enabling him to draw upon the energy that is latent in the system. In no sense does it replace food, and unless this drain upon the system is replaced an unfavorable result follows. Professor See likens its special stimulating power to that possessed by food which will prove a source of stimulation by its presence before it is in any way acted upon by the gastric juices. As to its action on the heart and blood-vessels, he considers that but little is known and cannot be prop- erly understood until xanthin and its series of products has been studied, caffeine being chemically tri-methyl- xanthin. The experiments of Dr. Reichert, of the University of Pennsylvania, on animals, form a valuble corollary to the views of Professor See, and add much to our knowl- edge of the action of caffeine on the heart and blood-ves- sels. Reichert's experiments were instituted because he considered that the drug was but little understood, and because the very prevalent idea that it was a beneficial cardiac stimulant, was based on experiments that were incomplete and open to serious objections. He benefited by the experience of others and avoided their sources of error, with very satisfactory and important results. In a series of experiments on the production of heat during the administration of caffeine, he shows conclusively that the amount of heat produced and the amount dissipated are augmented, and in consequence with the increased energy a corresponding drain on the system takes place. Its reputed stimulating properties he considers to depend on a general excitation of the cerebral centres, the effect of which he likens to the energy and force exhibited by persons when the subject of a fright, hysteria, or mania, during the influence of which unusual deeds of endur- ance and strength are performed, but at the expense of the system. His experiments to determine the condition of the blood-pressure and the effect on the heart were very com- plete. Solutions of caffeine were introduced into the ex- ternal jugular vein and also hypodermically ; the pressure was recorded by a manometer in the carotid artery and the action of the pulse carefully observed. The effect was noted in dogs in their normal state, in others with the pneumogastrics severed to cutoff the influence of the inhibitory centres, and in a third series in which the up- per spinal cord was cut to determine the influence of the accelerator centres. The results of his observations are given in the following conclusions : 1. The pulse rate may be diminished during the first and last stages of the poisoning, but is generally de- cidedly increased. During the first stage the diminution is due to a stimulation of the cardio-inhibitory centres in the medulla oblongata and heart, and during the last stages to a direct depression of the heart. The increase in the pulse-rate is due to a depression or paralysis of the above cardio-inhibitory centres. 2. Arterial pressure during the first stages of poison- ing is generally unaffected or diminished, but occasion- ally a trifling increase is noted. The increase is due to a direct stimulant action upon the blood-vessel walls, in- creasing vascular tension. The diminution is due chiefly to a direct depression of the heart, and to some extent, doubtless, to a secondary paralysant action on the vessel- walls. 3. The acceleration of the heart-beats may be accom- panied by no appreciable alteration in blood-pressure, but generally by a more or less decided diminution, which is dependent upon cardiac depression. 4. Caffeine diminishes the heart's efficiency for work, arrests it in diastole, sometimes induces sudden paralysis, and is therefore a cardiac depressant. 5. The asserted stimulant action upon the circulation is doubtless subjective and dependent upon an excitation of the cerebral centres. Beaumont Small. CAMBO. A popular thermal station in the depart- ment of Basses Pyrenees, France. Location.-Cambo is charmingly situated, not far from fashionable Biarritz, to which fact, as well as to its mineral springs and a well-managed bathing establish- ment, it owes the growing favor with which it is regarded. Although it is open all the year round, there are really two seasons, one from April to June, and the other from September to the latter part of October. The climate is soothing. Cambo is 200 feet above sea-level. Access.-By railroad to Bordeaux, and via Dax to Bayonne. Three hours by stage from Bayonne. Analysis.-There is an alkaline sulphur spring, hav- ing a temperature of 80° F., with the following chief in- gredients : Sulphate of lime, sulphate of magnesia, sul- phate of sodium, small quantities of arsenic and lithium. It is rich in free carbonic acid. There is also a cold chalybeate spring. Indications.-Cutaneous affections, lithaemia, chronic diseases of the organs of respiration, catarrhal affections of the alimentary canal, scrofula, and anaemic states are chiefly treated at Cambo. It is a good place also for convalescents from acute diseases, there being pleasant and sheltered promenades and fine scenery. Accommodation.-The Grand Hotel d'Angleterre, and the Hotel de Paris are good hotels. The thermal establishment has the usual appliances. Edmund C. Wendt. CAMPHORIC ACID, CtHu (COOII)2, is formed by the oxidation of camphor, and may be prepared by heating camphor with nitric acid. The acid forms in small color- less needles or plates, odor faintly aromatic, taste acid and bitter, very sparingly soluble in cold water, more soluble in hot, soluble in alcohol and ether. Ten per cent, of alcohol added to hot aqueous solution prevents it from being deposited on cooling. This acid has long- been known, but it is only during the last two years that its therapeutic properties have been utilized. Its latest use is for the treatment of diseases of the respiratory tract and as a preventive of night-sweats. For the latter purpose it promises to be one of the most valuable additions to our materia medica. Com- pared with atropine its effect is more certain and more prolonged, while it does not produce the difficulty in swallowing, dryness of the pharynx, disturbed sleep, and vertigo, which often accompany the use of the latter drug. Compared with atropine its mode of action differs, as its beneficial effect is thought to be due to its power of de- 150 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Caffeine. Canada. stroying the ptomaines in the blood which cause this dis- tressing symptom. The dose as an anhydriotic is thirty grains at bed- time, or fifteen grains during the afternoon and the same dose repeated at bedtime. The action is not rapid, and in some instances no effect has been noticed until the following day. The effect of a single dose often con- tinues for several days. The reports of cases treated show beneficial results in a great majority of them ; it does not in any way interfere with the appetite or digestion, and in most instances a quiet sleep followed its use. As the taste is somewhat disagreeable, it is best administered in wafers or capsules. In diseases of the mucous mem- brane of the respiratory tract, camphoric acid is used by applying locally and as a spray. In acute coryza, phar- yngitis, and laryngitis a half to one per cent, solution may be used every three hours, or tampons saturated in the solution maybe introduced into the nasal cavities; in ulcerated throat, a solution of two to six per cent, may be applied. This drug has no corrosive action ; it pos- sesses antiseptic properties and produces contraction of the blood-vessels of the mucous membrane. Internally, it is also used for intestinal diarrhoea of a catarrhal char- acter, and where intestinal antisepsis is desired, the dose is from five to ten or fifteen grains. It is excreted by the kidneys and renders the urine clear and acid in two or three hours. In cystitis, when the urine is alkaline, it has proved of benefit. In this condition it is also used as a wash in a half of one per cent, solution. The bladder is to be ir- rigated twice a day, about an ounce of the solution being- left behind. Beaumont Small. CANADA, CLIMATE OF.* The climate of a country must ever be considered of the greatest moment to hu- man welfare. What is climate ? It is not obliquity of the sphere with respect to the horizon, from which re- sults the inequality of day and night; it is not the im- aginary circles parallel to the equator ; nor is it the weather peculiar to a given country; nor its heat, nor its cold, nor its dryness, nor its moisture; nor the course or character of the winds ; nor the changes of the sea- sons ; but all these combined, together with its salubrity and insalubrity. It is, in a word, according to Hum- boldt, "the changes in the atmosphere which sensibly affect our organs, as temperature, humidity, variation in the barometrical pressure, the calm state of the air, or the action of opposite winds, the amount of elastic tension, the purity of the atmosphere, or its mixture with more or less noxious gaseous exhalations, the degree of ordi- nary transparency and clearness of the sky, the organic development of plants, and the ripening of fruits." But to these must be added the feelings and mental and social condition of man as affecting and modifying the influ- ence of climate everywhere. Distance from the equator and height above the level of the sea are not therefore the only conditions comprised in the function of climate. Climate is influenced markedly by the physical geog- raphy of a country. The Registrar-General for Scot- land, in explanation of certain phenomena, the causes of which are not quite obvious to the reader, generally de- scribes Scotland to be of extremely irregular figure, and attributes the disturbance of the mortality tables to that cause. Writers generally admit that there is neither conceit nor irrelevancy in the matter. Climate affects our stature, our strength, and complexion; causes and cures disease ; prolongs or shortens life. Its influence may be seen in the great variety of races which inhabit the earth, presenting every tinge and hue of complexion, from the pale white to the ebony black ; and in the vast variety of intermediate races-all descended from one common parent,-the theories of the pluralists to the con- trary notwithstanding. There must be added a third element, which affects man in health and disease, and which influences the tables of mortality, viz., the ordinary condition of wealth and comfort, or the reverse. Before entering upon the subject of the paper it may be well to state the conviction that the influence of cli- mate upon man and upon the brute creation is marked, -more marked, indeed, upon the lower animals than upon man,-for the latter is not so completely exposed to the influence of climate as are the former. A few gen- erations will so change many animals as to make them scarcely recognizable; while man requires a period so great that some are disposed to doubt that any amount of intra- or extra-tropical influence can convert a white into a black man, or a negro into an Esquimau. As has been said, climate generally has an intimate re- lationship to the physical geography of a country, and the climate of Canada is not an exception. Its vast ex- tent of country, from the Atlantic in the east to the Pacific in the west, and from the Arctic Ocean, Baf- fin's Bay, and Davis's Strait on the north and north- east, to the boundary line, forty-fifth degree, and the great chain of lakes in the south and southeast, would necessarily give it a varied climate. Canada occupies a great portion of what has been styled the Interior Valley of North America-a valley which may be said to occupy six million square miles, beginning with the tropics and terminating within the Polar Circle, traversing the continent from north to south and passing through the entire northern zone. This valley rests upon, and is indented by, the Gulf of Mexico on the one side, and by Hudson's Bay on the other; a valley which is protected from the Pacific Ocean on the west by the Rocky Mountains-mountains varying from ten to fourteen thousand feet in height, which greatly modify the distribution of rain, the direction of winds, and in many ways influence the climate. The Appala- chian chain of mountains-a chain interrupted only at the forty-second degree of latitude by the Great Lakes and the St. Lawrence-bounds this valley in the east. The distribution of these chains of mountains permits a more direct oceanic influence on the Atlantic or eastern side than on the western or Pacific side. The enormous fresh-water lakes within that valley in- fluence most materially the climate of Canada. The ba- sin of the St. Lawrence alone has an area of upward of half a million square miles, and contains lakes having an area of one hundred and thirty thousand square miles. The St. Lawrence basin is hemmed in on both sides by mountain ranges : the Laurentide on the north, the moun- tains of Notre Dame on the south. The latter form the Vermont Mountains, mountains which exert so potent an influence upon the climate of both the United States and Canada. The ranges of these mountains vary in alti- tude from a few feet to four thousand feet above the sea. At different heights along these mountain ranges numer- ous watersheds are met with, in addition to those in the basins already alluded to-the Lacustrian chain, which begins in a cul-de-sac formed by the Arctic Ocean and the Rocky Mountains. So great in number are these fresh-water lakes that many of them have not yet re- ceived names. Some of these lesser watersheds have not been fully explored, yet their genial influence upon the climate of the country is admitted. The low altitude of Canada is favorable to its climate and to its vegetation. Were the plateaus on the north coast much elevated, vegetation would be confined to the mosses, and animal life to a few hardy, thick-furred animals. But all the long gentle slopes descend toward the Atlantic and the Frozen Ocean ; while all the short and rapid slopes, or counter-slopes, are directed toward the Pacific. The land in Canada ascends in a series of plateaus as we ap- proach the interior, and we reach the height of table- land, as it is termed, on the south side of Hudson's Bay. Canada consists for the most part of laurentian, devo- nian, and silurian rocks. The size and shape of this country operate in control- ling the distribution of heat. It is admitted that the greater the land surface the greater the measure of heat; and as the continent of America widens as we ascend in * The present article is, in considerable measure, a condensation of my work on "The Climate of Canada, in its Relations to Life and Health," to which I refer the reader for ampler information.-W. H. H. 151 Canada. Canada. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) latitude we find the centre of the system of atmospheric circulation north of the geographic equator. The series of vast lakes and rivers exerts unmeasured influence on the climate of Canada'. It would be enter- ing upon too elementary a question to discuss it at length. I may say, however, that the influence which large areas of fresh water exert is in a measure propor- tioned to their depth rather than to their surface. If the collections of water are deep, their surfaces are steadily maintained at a higher or lower temperature than the surrounding air. In summer the surface waters are heated, and when heated become specifically lighter, and in consequence continue to float upon the surface ; during the night a portion of surface water, cooled by the withdrawal of the sun's rays or by the low tempera- ture of the air, becomes denser and sinks, while the warmer water ascends to take the place of the colder ; but at no great depth from the surface of these great bodies of water the temperature is uniformly cold, being scarcely modified by our summers and winters. Canada without its lakes would be like the north of Europe in being both continental and oceanic. But its oceanic features are limited. The cold air from the lakes affects vegetation near their shores, but not at a great distance from them. It is to the lakes and rivers, on the other hand, that we are indebted for so great a range of animal and vegetable life. Thus vegetation in longitude 110° and latitude 54°, upward of seven hun- dred miles from Toronto, has nearly the same character as it has in the capital of Ontario. The climate of Canada is more uniform than is that of Europe-the meteorological differences being such as are produced by position alone. It is regarded as a dry climate, yet more rain falls in Canada than in Britain ; but it falls in a shorter period, and in larger quantities at a time. The average fall in Canada is fifty inches a year ; while in Great Britain the rainfall is but thirty inches. If we seek comparisons in Europe, we find a parallel to the Canadian winter in St. Petersburg, and to the Canadian summer in Paris. But the sky of Canada rivals those in clearness-a clearness which is obscured only for a short period every few days. It is customary elsewhere to divide the year into sea- sons of three months each ; but this division, arbitrary at best, is totally inapplicable to Canada. Spring and au- tumn are here of short duration. A line of forty degrees mean temperature, according to Blodgett, passes through Nova Scotia, near Halifax, Montreal, then parallel with the St. Lawrence, north of Kingston, through Toronto, south of Penetanguishene to the Red River of the North. That is the temperature of April, but advance in tem- perature is uniform for the next two months. The ad- vance is illustrated by corresponding changes in the ani- mal world. The earliest birds, as the song sparrow, be- gin to sing in the month of March; the robin, also re- turning from the South while snow yet dapples the ground, makes short and frequent attempts at song ; the moose deer leaves his winter haunts about the same pe- riod, and approaches the marshes, ponds, and rivers, in search of food; wild-geese move northward about the 22d of April ; and the frog, with a regularity that is sur- prising, begins in the last week of April in Eastern Can- ada its harsh guttural croaks. The mean summer temperature ranges from 55° F. in the northern to 65° F. in the southern parts of the country ; but the extremes of heat are very great, the thermometer sometimes indicating a temperature more exalted than that of the blood. The mean distribution of rain for the three months of summer is ten inches. The early part of autumn is a season of peculiar beauty; the transition from the heat of summer to the temperature of autumn is very sudden ; the autumn col- oring of the leaf in various tints is but the prelude to the rustling of its dry, lifeless form. While the first of these autumn months-September-might be claimed by sum- mer, the last, November, is in reality a winter month ; the mean temperature of the latter may be stated at 43° F. The regularity of the advent of birds from the North, in springtime, is equalled by the regularity of their depart- ure in autumn. A mysterious influence-which has been variously explained by some as the advancing heat, or by others as the demand of impending ovulation-seems to lead various classes of birds to take their departure for the more congenial influences of the South at about the same time ; and birds of strongest wing and most rapid flight are very often those which leave the north- ern portions of Canada with the greatest regularity. Thus the wild-goose, which, according to Dr. Rae, visits the extreme North on April 23d, comes back again to us about the 25th of October. A foretaste of wunter is afforded us by sharp frosts, piercing winds and snowfall, interrupted for a day or two by soft balmy breezes, which we call " Indian Sum- mer," but which the French habitant styles : " L'ete St. Martin, Du Soil- au Matin." This is a short period, of uncertain occurrence and of uncertain duration. In winter the snowfall does not bear a direct ra- tio to the cold. The largest amount of snow usually falls in the months of December and February, and although occasionally the temperature of those two months falls below that of January, it is only in the aggregate, as considerable allowance must be made for what is termed the " January thaw." The snow crystals which fall in different months, and in various parts of the country, are very different in form. The aggregated flakes vary in their combination, but in whatever part of the country they are met with, they present as distinct a mathematical form of crystal- lization as that which characterizes the more lasting crys- talline gem from inorganic nature. The snow-crystals are well-defined hexagonal or six-sided prisms, very com- monly of a stellar or star form ; but the electrical condi- tions of the air influence the form. Vitreous or positive electricity gives a result different from that given by neg- ative or resinous electricity, but chiefly in the matter of the grouping. As forests or herbage which cover the surface influ- ence climate, that of Canada is certainly undergoing im- portant modifications. Forest trees cannot be cut down, and the earth cannot be upturned or pierced with drain- age-tubes without the climate being sensibly affected. From the oak and elm and beech and maple on the one side, to the pine and cedar and still hardier lichens, the mixed forest is met with in Canada in rich luxuriance. In some districts the pine and spruce are interspersed with beach and maple ; but plants with slender shrunken leaves and feeble stems are nowhere to be met with in Canada. The wild grape flourishes as far north as fifty- two degrees of north latitude, and is abundant in the Kaministiquoia. As a wheat-growing country Canada equals Russia. From the valley of the Saskatchewan, and from far down the Mackenzie River in the northwest, along the chain of lakes and rivers, wheat of the finest description is grown -inferior in gluten only to that cultivated near the shores of the Mediterranean. Were it not for untimely frosts the wheat-producing power of the northwest of Canada would be greatly increased. The climate of Canada is highly stimulating. It is a matter of observation by residents and travellers that the thermometer cannot register this quality, though Euro- peans, accustomed during their lifetime to the use of stimulants, quickly perceive that if they wish to preserve health in Canada the quantity must be diminished: temperance is almost a matter of necessity. A residence in Canada is attended with certain physio- logical changes. The transition from youth to manhood is often sudden, the period of childhood being short ; but not to climate alone, but to domestic education as well, and to social influence, must be attributed this most unat- tractive feature. Many of the tissues of the body, as the skin, hair, etc., become drier by a residence in Canada, and physicians recognize still further changes in some of the 152 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Canada. Canada. internal organs ; but these changes are not prejudicial to life or to health. On the contrary, the maritime and continental features, harmoniously blended in a Canadian climate, are favorable to the highest development of a hardy, long-lived people. It is generally admitted that a change takes place in the European's constitution after a longer or shorter res- idence in this country. Between the emigrant of to-day and the children of emigrants of fifty years ago we observe marked differences. The high color which flushes the cheeks and reddens the lips of Europeans fades somewhat, and the skin becomes less soft and moist; the hair becomes drier and straighter ; the fat, which cushions the cheeks' muscles and gives roundness to the general outline, disappears to some extent; and the teeth, thanks to a pernicious mode of living, decay sooner. The various seasons influence persons differently ; but it is, perhaps, the great heat of summer which influences most. The temperature of winter comes next. The milder seasons of spring and autumn exert less influence, being more like those seasons in Europe. In Canada it is not alone the hot weather which acts so severely upon the human body, but, apart from the relaxing influence of heat per se, it indisposes to take food in large quantity. It is during the hot weather that mortality is greatest in Canada-very different from what it is in the north and west of Europe, where the mortality is higher in cold than it is in warm weather. The cold of Canada in winter is severe, but it is not destructive ; the sharp, clear, bracing temperature is more easily and more agreeably borne than is the humid, raw air of a higher temperature. It is remarked that the cold dur- ing winter seems to be more superficial, as it were, and to call into activity the capillaries of the surface of the body. A marked difference is noticed between the influence of the cold of Canada, with its low altitude, and the same tem- perature in high altitudes elsewhere. If, for instance, we ascend Mount St. Bernard till we reach a temperature equivalent to that of a Canadian winter, the air is found to be too vivifying ; respiration becomes too hurried, and among those who permanently dwell there great lon- gevity is rare. In Canada the cold is indeed exhilarating, but not for early destruction. The exhilarating influence of a Canadian winter depends much upon its peculiar electrical condition. The sensations of cold in winter are but relative : when the body is inured to severe cold a moderate degree of elevation is easily felt. It is sur- prising how easily we adapt ourselves to a climate where the changes in temperature pass through a cycloid very much greater than exists, perhaps, in any other part of the world. Europeans, if sheltered from the piercing winds, inure themselves readily to the severest cold in winter. The rapidity with which the country has been recently opened up, especially the west and northwest, makes any attempt at correct vital statistics impossible ; but the reports furnished by the surgeons of the American and British armies supply that want-to a considerable extent. It has been found that stations improve in salubrity in direct ratio to their proximity to the frontier and to the great chain of Canadian lakes. Canada is the healthiest station in the British Army, Malta alone excepted,-much more favorable to life and health than Great Britain itself ; much more favorable than those favorite stations, Gibraltar or the Ionian Islands or the Bermudas ; and immensely more favorable than Ceylon or Bengal, or any other Indian station. There are no diseases known in Canada which are not met with elsewhere, though many diseases are greatly modified by residence in Canada. The selection of climate is oftentimes a matter of some difficulty ; thus, portions of Canada are singularly favor- able to consumptives ; but this must be taken with some qualification. The climate is favorable to persons in whom tubercles are being deposited, or are already de- posited, or to those who have a condition of lung which seems prepared for the reception of tubercle. But for those in whom tubercular softening exists, or in whom large or even small cavities are found, Canada is not a favorable climate, except, perhaps, that of its western (SUPPLEMENT.) extremity at the Pacific Ocean. The air in tjie north, otherwise so healthy, is too stimulating under these cir- cumstances ; while that of the east is too humid. Writers on the diseases of hot climates were formerly in the habit of recommending consumptive patients to visit warm regions-to pass a winter in the South of Europe, or in Africa, or in the warmer portions of the American con- tinent ; but there has for many years past been a change in the opinion of physicians on this question, and pa- tients are sent to cold rather than to hot regions. Some- times patients are sent on whaling expeditions off the coast of Greenland. But whaling expeditions are not easily arranged for, and are attended with risks and dis- comforts of a nature to counterbalance, in great measure, the advantages of change of air. The varieties of climate in Canada differ widely, em- bracing almost every moderate degree of heat and every still more moderate degree of moisture, and affording greater differences than are to be found perhaps in any other country. Its vast extent of territory would account for so great a range ; but, as I have said, north and south are not the only questions where climate is concerned ; and even the poles and the equator are but elements in its formation. As in Canada we have almost every variety of climate, and as we are not restricted in selection, places must needs be chosen where comfort, which is so essential to enjoyment, may be most easily obtained. Since there has been direct railway communication between the At- lantic and the Pacific coasts through Canadian territory, where the mosses at one end, the umbrageous foliage at the other, and the variegated forests along the route give evidence of the great variety of climate traversed in the eight days' rapid journey, a choice of locality is not diffi- cult. With a country joining two oceans; with every variety of physical configuration ; with every degree of temperature, and with a moderately varying dew-point, a choice may easily be made by those conversant with the subject, for it must be borne in mind that not temperature alone, nor dryness, nor equability is exclusively to be con- sidered, nor yet the all-important question of comfort, but all these taken in connection one with another. It is pleasing to add that the condition which the medical authorities of the United States Army wisely object to- high temperature and with it a high dew-point-is not met with in Canada. One must be prepared, however, to lay down general rules for the guidance of patients in special cases. The many hundreds of miles of the Atlan- tic coast afford a selection for one class ; the more shel- tered parts of the St. Lawrence valley will suit another class ; the hilly districts in Eastern Canada would benefit a third ; the western lakes would suit others ; the large basins of water, the Saguenay or Gaspe, or Baie de Chaleur, a fifth ; the shores of those inland seas of purest water, another class; the western regions from Winnipeg to the base of the Rocky Mountains, espe- cially the neighborhood of Banff, another class ; spots here and there on the Rocky Mountains themselves, an- other class ; the western slopes of the Rockies, another class ; and the varied shores of the Pacific coast, still another class ; and when chronic bronchitis or pleurisy is under consideration, the more genial influence of the Pacific will be found more beneficial. In the months of December, January, and February, and the first two weeks of March, in almost any of these districts, but especially in Eastern Canada, generally as far as the Rockies, the advance of phthisis is checked in persons who have strength enough to live much in the open air. The healthiness of the climate has been a matter of ob- servation by every writer from Charlevoix to the present day. The early French writers in sending accounts to their " Mere Patrie" were enthusiastic over the purity of the atmosphere, the magnificence of the forests, the trans- parency of the waters, and the health-giving qualities of the air. Old age, in Canada, is a green, an active, a vigorous old age. The census shows a large number of persons living from eighty to one hundred years of age. Life assurance companies have found it to their advantage to 153 Canada. Cannabis Indica. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) change the scale so that Canadian lives may be accepted at a lower rate than British lives. This continues till the age of thirty-six, when the rate is the same ; after which it gradually increases, as insurance companies have to take cognizance of a life of greater wear and tear in Can- ada, which tells, in the course of time, even upon the stur- diest. The healthiness of the climate is, moreover, manifest in the natural increase of the inhabitants. A section of the population-the French Canadian-has increased at a ratio infinitely greater than that of any other country, not even excepting that of Russia. Canada, in this re- spect, presents a marked contrast to many other coun- tries, where the birth-rate is sometimes alarmingly small. The increase in Canada is, no doubt, due to a consider- able extent to early marriages, which are in every way encouraged, and also to an absence, among the married, of that nameless, shameless, crime of marital limitation, which unhappily obtains in many places elsewhere. A circumstance not generally known may here be men- tioned, viz., that the weight of children born in Canada is nearly a pound more than that of the children born in the maternity hospitals in London. If, then, Canadian children are so favorably handicapped at the start, may it not be presumed that they will continue it to the finish ? Certainly, up to a certain period in youth they grow more rapidly, and attain greater height at an earlier age than they do in Great Britain ; but this may be due, to some extent, to that forcing process which certainly develops but may not solidify. This question, however, is of too extensive a nature to be dealt with here, but this may be stated, that the colonist is superior in strength and height and weight to his progenitor, and the French Canadian markedly so. The Teuton, the Irish, and the Scotch are not yet long enough in possession of the soil to enable one to make trustworthy comparisons between them and their ancestors ; but, following the figures furnished by Professor Forbes, of Edinburgh, some years ago, I, on two occasions, established the height, weight, ami strength of the students attending the medical schools of Montreal, and I found that the British Canadian, though he could count but one or two generations born in Canada, had gained over his ancestors in height, weight, and strength. The French Canadian could count seven, eight, and sometimes ten generations born in Canada, and the advance in height, weight, and lumbar strength was greater. It is undeniable that the French, in France, have diminished in stature; that wars have carried off the taller; and that revolutionsand wars have cut off many of the generators of tall men, till the stand- ard is much less than formerly. In France dynasty has followed dynasty, sometimes with feverishness and un- rest ; sometimes with violence ; sometimes with blood- shed ; but always with disturbance of the quiet of the people. And that disturbance of the people's quiet is as prejudicial to development as it is to gestation. In Can- ada, on the other hand, it has been one almost unbroken chain of undisturbed quiet. There remains the question of acclimatization, and with this must be considered the habits of the people. In Canada acclimatization has gone on without affecting prejudicially those who are subjected to its operation. There is no sign of decay in those who are in the pro- gressive state. Those coming from Europe to Canada have, it is true, to clothe themselves differently, to take food of somewhat different character, and, very often, to diminish the quantity of stimulants to which they may have been accustomed. It has been pointed out by those who are not favorable to the country that there are local exhibitions of that more general decay which Dr. Knox of evil omen prophesied is the lot of the denizen of the North American Continent, when he says : " Were the supplies from Europe not incessant, a European could not stand his ground in those new countries. A real ■ native, permanent, American or Australian race, of pure Saxon blood, is a dream which can never be realized. Man cannot ever exist permanently in any country to which he is not indigenous ; cannot ever become native true-born American ; cannot hold permanency in any portion of any continent but the one on which he first originated." The prophet has passed away, and in the country, too, to which he was indigenous, and, notwith- standing his prophecy, the descendants of the Saxon and the Celt present, seemingly, all the characteristics to fit them for the permanent occupation of the soil. It has been claimed, on the other hand, by writers, that had the aborigines of the country been left to themselves they would eventually have disappeared without hostile action on the part of the white man, on the hypothesis that new-comers are victors in every great struggle for existence. It is claimed to be with men as it is with European plants transferred to Canada. They take vigorous hold of the soil and attain a vigor unknown in Great Britain ; and when taken back to the soil whence they came, they there again comport themselves with modesty. The aborigines are rapidly disappearing, but has not the white man changed for them their surround- ings ? Or had they their own period of active infancy and vigorous age, as they now have that of decay ? For are they not representatives of a race much older than the races which have supplanted them ; and have they not been associated with the flora that is passing away ? The low birth-rate among the aborigines is pointed out as an evidence of the baneful influence of this climate upon natural increase. But it must be borne in mind that climate is not the only factor in determining pro- lificness, and that the procreative power in a country has a certain degree of relationship to the ability of the soil to support its inhabitants and to the precarious living of these scattered tribes, some trusting entirely to hunting, some to fishing. Fishing necessarily implies temporary abode, in moderate numbers, at the borders of lakes and rivers ; while hunting necessarily implies still more moderate numbers, and a still greater extent of country to roam over. As food is limited in quantity, and cannot be brought along with the natives, and as the necessities of the wild animals impel them to move hastily from one part to another, it follows that food is often insufficient. Scarcity and insufficiency are not less hindrances to population than are the enforced scattering of the tribes, and the enforced neglect of the women by the men of the tribes. Where food is scarce, the men are obliged to keep greatly in advance of the women, and the latter are little valued. There is another cause of limitation among the aborigines : The deformed, among the children, are in- variably sacrificed, except where Christianity has stepped in to save. The healthy, strong, vigorous, and well- formed are alone permitted to live. The mother suckles the child, five, six, and seven years, sometimes for a longer time ; and during the whole period of lactation the husband does not disturb her. Ante-natal life has its dangers also: the severe toil of the mother ; exposure to the inclemency of the seasons ; forced marches, etc., are so many risks to the unborn. Among the young children the absence of ventilation, the habits of gor- mandizing after enforced fasting, and all those hin- drances to increasing population inseparable from a no- madic existence, are met with. Add to these, polygamy. Abbe Lacombe states that wherever it exists among tbe aborigines, the number of births is smaller than among the monogamous. This is quite in accordance with what is met with in Eastern Europe, where Christian families, where monogamy exists, consist of a greater number of children than do Mahommedan families in which polyg- amy is met with. It is true that tbe teeth, among the whites, decay at a much earlier period in Canada and in the northern United States, and that has been seized upon as a partial fulfilment of Knox's prophecy. I have fully admitted, in my work on the climate of Canada, the general prev- alence of an earlier decay of the teeth ; but I have also asserted that the climate has nothing whatever to do with that decay. The aborigines, throughout Canada, have re- markably good teeth. In the extreme north, toothache is unknown. The teeth of the Esquimau, by constant trit- uration, are sometimes worn away ; or a disease in some measure equivalent to rheumatism may cause an occa- sional crumbling ; but toothache is unknown. The Iro- 154 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Canada. Cannabis Indira. quois and the Huron Indians have teeth beautifully regular and equally strong. Teeth decay early with us because there is an impairment of the function of digestion. Functional disturbance is the common cause of decay. The Canadian child subjects his digestive ap- paratus to an ordeal to which it is not equal, and for which it is not prepared. I have elsewhere reduced the causes of this decay of the teeth to several: Taking too much food-therefore decomposition of a large portion of it ; taking too hot articles of food into the mouth- therefore cracking the teeth ; taking too cold articles- therefore a like result; taking acids and a variety of con- diments, vinegar especially-therefore dissolving them ; chewing insufficiently-therefore allowing them to rust ; drinking while eating, therefore washing food out of the mouth by fluids of various kinds before the first and most important stage of digestion is accomplished ; spit- ting, therefore robbing the food of its first and chief chemical solvent and leaving it unfitted to be acted upon by the gastric juice later on ;-in a word, forgetting that the purposes of food are to nourish the body, and to sustain its heat, and not, by the tricks and refinements of the gastronomic art, to spur the appetite beyond its own better sense. William H. Hingston. CANARY ISLANDS. The "Canaries" (Insula For- tunata) are situated in the North Atlantic Ocean, about sixty miles from the west coast of Africa. They lie between lat. 27° 4' and 29° 25' north, and long. 13° 25' and 18° 16' west. There are seven principal islands in the group, which are named as follows : Teneriffe, Grand Canary, Palma, Lanzarote, Fuerteventura, Go- mera, and Hierro. The islands cover an area of 4,000 square miles. They are supposed to be, like Madeira and the Azores, of volcanic origin, but their climate is warmer and drier than that of the islands named. " Their coasts are bold, abrupt, and rocky, and their surface is broken up by mountains, of which the loftiest, Pico de Teyde, in Teneriffe, is 12,182 feet high. There are no rivers in the islands, but after heavy rains torrents pour down the mountain slopes and ravines " (Scoresby-Jack- son, "Medical Climatology"). Teneriffe is the largest of the Canary Islands, and its capital, Santa Cruz, is annually visited by many invalids. It is, however, less attractive and offers fewer comforts to those in search of health than Orotava, on the northwestern side of the same island. The climate of Orotava is " softer " than that of Santa Cruz. Laguna, on a lofty plain in the northern part of Teneriffe has a much lower range of temperature than Orotava and Santa Cruz. Scoresby-Jackson gives the following table of temperature in degrees of Fahrenheit: the different islands of the archipelago, thus affording good opportunities for pleasant excursions. Although the Canaries belong to Spain, there are plenty of English residents, and in the chief resorts the English language is sufficient for all practical purposes. Finally, it may be worth mentioning that the more hardy and adventur- ous can find a variety of " local climates," owing to the difference in altitude of many of the smaller settlements. Invalids should not arrive before November, unless they intend to visit the higher altitudes. . Edmund C. Wendt. CANNABIS INDICA. This drug owed its introduction as a therapeutic agent to its reputation in the East as an exhilarating and intoxicating drug. It was shown to possess active medicinal properties as an hypnotic and anodyne, and retains its position in the Pharmacopoeia, but has never been received with much confidence. The objection to its use has been the great variation in the quality of the drug and the uncertainty of the effect to be produced. This arises from several causes, among which may be mentioned the different seasons in which it is collected, the want of care displayed in the cultiva- tion of the plant, and the age and preservation of the drug, and its preparations. Of late the attention of the profession has been directed to its value, and it has been utilized to a much greater extent than formerly. Greater care has been given to the drug itself and more precision in its preparation ; in consequence the old objection to its use is to a great extent removed, as a reliable and trust- worthy preparation may now1 be obtained. It was formerly thought to be a very powerful toxic agent, but recent investigations have shown that although it may very readily give rise to mild toxic symptoms, it is only where excessive doses have been given that fatal consequences may occur. It has even been said that no well-authenticated instance of a fatal case has been re- corded. In experimenting on animals, Dr. Hare found that ten minims of a fluid extract produced the well- marked physiological action in a man, but three to five drachms were given to a dog without a fatal effect, and death was only produced when about one ounce was ad- ministered. Among the many communications that have recently appeared, two particularly deserve attention, as record- ing the views of careful clinical observers : one by Dr. Russell Reynolds, in The Lancet of March, 1890, and the other a report by Professor Germain See to the French Academy of Medicine, in the same year. Dr. Reynolds gives the result of some thirty years' study of the drug in mental and nervous diseases. He found it of particular value in the aged when the mental faculties are weakened generally and much restlessness and sleeplessness is an accompaniment. In doses of one-third to one-fourth grain at bedtime a calm and quiet sleep is secured, and the same action may be secured for weeks without in- creasing the dose. In melancholia and chronic alcoholic delirium of the aged, accompanied by depression, it has acted as an exhilarant, has produced the desired sense of strength, and has secured quiet and rest. In the restless- ness of general paralysis and " temper diseases," in both adults and children, it has also been of the greatest ser- vice. In painful maladies it has acted best in those of a func- tional character, such as neuralgia and migraine, either alone or when combined with constitutional remedies, as iron, quinine, and zinc, when such are indicated. In neuritis it only proves of service when given in addition to mercury, iodine, and other such remedies. It has also proved very serviceable in the formication, tingling, numbness, and other sensory disturbances of the elderly and gouty. In clonic muscular spasms it has been very successful, such as the convulsions of children and adults due to reflex causes, in epileptiform convulsions due to organic disease of the central nervous system, and in cases of brain tumor accompanied by convulsions and other indi- cations of central irritation. In true epilepsy it has proved useless. In numerous cases it has been given for Santa Cruz. Laguna. Annual 71.15 62.63 Winter 64.85 56.42 Spring 68.87 59.75 Summer 76.68 68.29 Autumn 74.17 66.06 While the Canaries are popular as health-resorts, they are, nevertheless, exposed to east and southeast winds, which are hurtful to certain invalids. The climate of the islands is, on the whole, less relaxing than that of Madeira, but it is not by any means bracing. The class of cases likely to do well at Teneriffe are the early stages of phthisis, asthma, winter bronchitis, gout, rheumatism, and neurasthenia. Apart from Teneriffe and Grand Canary the accommodations for invalids are inadequate. It is the clear skies and dry atmosphere of the Canaries, together with the (in general) mildness and equability of the climate which have given these islands their title to rank as climatic stations of some importance. In the Grand Canary, Las Palmas has recently been made much more attractive than formerly. There is now a good steamboat-landing at this resort, a fine sandy beach, comfortable quarters, and almost daily communi- cation with England. The Canaries may be reached from England by the steamers of the Cape and New Zealand lines. There is also a line of steamers plying between 155 Canuabis Indira. Cataract. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) a prolonged period until its full physiological action was produced, and yet has failed to influence the disease in the slightest degree. It relieves the distress of spasmodic asthma and has proved very serviceable in spasmodic dysmenorrhoea devoid of metritis or inflammatory causes. In the hands of Dr. Reynolds it failed entirely in chronic and acute mania, sciatica, lumbago, pleuro- dynia, and in all forms of hysterical pain. It also proved useless in torticollis, writer's cramp, paralysis agitans, and tetanus. Professor See directed his investigations to its use in painful gastric disorders that were not accompanied by any apparent organic change. He considers Indian hemp a true sedative to the stomach without any of the dis- turbing effects of opiates, chloral, bromides, and similar drugs. Its effect he thinks is due to the sedative action on the pneumogastric nerve. He has used it in all pain- ful dyspepsias and neuroses of the stomach and always found it of value. Its beneficial effect is increased by attention to the state of the secretions and the use of al- kalies, purgatives, salines, and antiseptics when such rem- edies are indicated. In using this remedy it is advised that the article should always be obtained from the same source. Dr. Reynolds, throughout his many years of practice, ob- tained the drug from the same establishment and found that although its strength would vary with the seasons, the desired effect could always be obtained. He recom- mends that the dose, to commence with, should be one- fifth of a grain every four or six hours for adults, and one-tenth of a grain for children, gradually increasing until its effect is produced. One grain of the extract he has found will produce toxic symptoms in the majority of individuals, if given as an initial dose, but when gradually administered it may be increased to four or five grains with immunity. In some instances a dose of one-fourth or one-third grain has caused mild intoxication. The preparation that he prefers to use is the tincture. The Pharmacopceial strength is one part in twenty and forms a ready means of giving the required dose, especially to children. Dr. Reynolds has also prepared a tincture of double the of- ficial strength as more convenient for the fuller doses. This is ordered to be taken on sugar, which is an easy method of administration, and renders unnecessary the disagreeable and uncertain emulsion which otherwise would have to be formed. The pills and solid extract produce an uncertain and delayed action ; they are apt to become dry, and are often insoluble. The preparation advocated by Professor See is a fatty extract made by dissolving the alcoholic extract in butter by the aid of heat and washing with water. It is given in doses of one-fourth grain three times a day. Other observers are now advocating its use in greatly increased doses, pushing it rapidly to two or three grains -if its sedative and anodyne effects are desired. When its action is re- quired in dysmenorrhoea and in pelvic disorders, its use as a suppository produces the desired effects more rapidly. Analysis of this drug has not produced any preparation that has proved superior to the crude drug. It yields numerous principles, but none of any practical value as a substitute for the drug itself. The poisonous constituent, teta no-cannabine, is not utilized and whatever advantage the alkaloid and resin may have is due to the absence of this powerful toxic principle. Gannabinon is a resinous, balsamic substance, dark brown in color, of the consis- tency of treacle ; it is insoluble in water, soluble in alco- hol and oils. Its taste is disagreeable. It is used as a sedative in mania, hysteria, and sleeplessness, but its un- certainty of action and the production, in many in- stances, of severe toxic symptoms have led to its disuse. The dose is one-fourth to one or two grains. The alka- loid cannabine is a translucent, brown, sirupy liquid with the odor of Indian hemp. Its dose is from one to five grains daily in divided doses, but its use is replaced by what is termed tannate of cannabine, which has been recently introduced, and is probably the most useful of all the principles of hemp. In its preparation the poison- ous volatile principle is removed and a tannate of the remaining constituents formed. It is a yellow, or brown- ish yellow, amorphous powder, with a very bitter and as- tringent taste and a faint odor of Indian hemp. It is slightly soluble in cold water, more so in hot, and freely soluble in hot water that is acidulated with hydrochloric acid ; it is also soluble in alkaline solution, and very sol- uble in acidulated alcohol. The dose is from two to ten grains-which may be increased to twenty grains,-taken an hour before bedtime. It does not produce intoxica- tion and is recommended as an hypnotic of particular service in acute mania and nervous sleeplessness. Beaumont Small. CANNSTATT. A watering-place in Wurtemberg, Germany. Location.-Cannstatt is prettily situated in a valley near Stuttgart, from which place it is easily reached by horse-car or carriage. It is less than 700 feet above the level of the sea, has an agreeable, rather warm, and equa- ble climate. It is well sheltered by hills, except tow- ard the south. There are over thirty springs belonging to the saline and chalybeate group. The temperature of the water varies from 50° F. to 70° F. The principal springs are the Wilhelmsbrunnen and Mannlein and Weiblein. Access.-By rail to Stuttgart, and thence by carriage. Cannstatt is also a railroad station, and all the local trains stop there. Analysis.-In 1,000 parts of the Weiblein water there are contained : Parts. Chloride of sodium 2.454 Chloride of potassium 0.(131 Chloride of magnesium 0.019 Carbonate of lime 0.S93 Carbonate of iron 0.031 Sulphate of sodium 0.581 Sulphate of lime 0.931 A number of springs have been united to feed a large reservoir used for bathing. The prickling sensation of gaseous bubbles on the skin is not unpleasant. Indications. -The thermal establishments of Cannstatt are modern, complete, and well managed. The waters are employed for every conceivable variety of bath and external application. The resort is chiefly frequented by those suffering from nervous affections, chronic catarrhal troubles, diseases of women, and anaemia. But a great number of other diseases are likewise treated in several special establishments. Thus, skin diseases, scrofula, gout, rheumatism, neuralgias, and paralytic states are said to be treated with satisfactory results. The writer of this article has visited Cannstatt on several occasions and always received a favorable impression of the thorough- ness of the methods employed there. The resort is not an international one, however, being little known, and not yet " in vogue " outside of Germany. Accommodation.-The principal hotel of Stuttgart is the Marquardt, but there are also several moderately comfortable hotels in Cannstatt proper. Edmund C. Wendt. CANTHARIDINATE OF POTASSIUM. The appli- cation of the cantharidinates to the treatment of tubercu- losis was introduced at a meeting of the Berlin Medical Society on February 25, 1891, by Dr. Oscar Lieb- reich. The value of this drug as a remedy rested on its well-known property of promoting exudation of serum from the capillaries ; an effect not only directed to the vessels of the surface of the body, but also pro- duced in various organs, as the kidneys, sexual organs, and lungs, particularly when the drug is administered in- ternally. This is the special action of the drug on the healthy tissues, and he assumed that an irritated condi- tion of any set of capillaries would favor this process of exudation, at which time a dose too small to produce any effect on healthy capillaries would cause an exudation from those inflamed. This would relieve the congested cells and restore the tissues to a more healthy state ; and, further, he claimed, as it had been shown that serum possessed decided germicidal properties, it should prove 156 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Cannabis Indlca. Cataract. antagonistic to the growth of tubercle and assist in the effort at repair. A number of cases treated by his method were shown by himself and some of his colleagues ; cases of laryngeal phthisis, lupus, and pulmonary phthisis were all said to be benefited. When the diseased parts could be ob- served, the action of the drug was such as had been de- scribed by Dr. Liebreich, the ulcerated surface being more healthy and showing signs of repair. When the lungs were affected the expectoration became free and profuse, the oedema decreased, and the local condition improved ; the fever also diminished, and other constitu- tional disturbances lessened. Liebreich stated that no reaction followed its use, but other observers reported a slight rise of temperature, headache, disturbed digestion, diarrhoea, etc. If the dose be too great it produces the characteristic symptoms of cantharides-poisoning-pains in the loins, albuminuria, strangury, and haematuria. The cantharidinate of potassium and the cantharidinate of sodium in solution were selected as the salts most suit- able for using the drug hypodermically. As the amount of cantharidin in these salts varies greatly, Liebreich ad- vised the use of a certain solution which he had found by experiment to be most suitable. It is prepared as follows: Cantharidinin, 0.2 gramme; potassic hydrate, 0.4 gramme, most carefully weighed and heated over a water-bath in a 1,000 c.c. flask, with about 20 c.c. of water, until a clear solution results ; then add water gradually, while still heating, to the full quantity. Of this solution 8 to 16 minims are administered hypo- dermically. Its use should not be continued for any length of time ; at least every third day should be allowed to intervene without the drug being administered. The effect on the kidneys must be carefully watched, and the dose lessened, or its administration stopped, should any symptoms of strangury occur. In kidney disease its use is, of course, contraindicated. To over- come the painful local irritation that frequently follows at the site of injection, it has been recommended to pre- pare a solution containing cocaine, which prevents the pain. Two parts of the hydrochlorate of cocaine are added to one of cantharidin and two of caustic soda; this is formed into a solution, and to T|o grain is used as a dose. The addition of cocaine is also thought to lessen its tendency to irritate the bladder or kidneys. This treatment has been extensively applied to all forms of tubercular disease, but it has not proved of suf- ficient value to warrant its continued use, and it is now rarely resorted to. It undoubtedly produces the action described by Liebreich, causing a freer exudation of serum, etc., but this does not lead to any improvement in the symptoms or tend to any permanent benefit. Post- mortem examinations of patients who have been subjected to this treatment fail to furnish any evidence of repair or beneficial effect on the disease. Beaumont Small. CATARACT. Antiseptic Measures.-The differ- ence of opinion as to the value of antiseptic precautions in cataract operations having disappeared, and their em- ployment having become practically universal, the fa- vorite methods will now be detailed. The precautions to be taken are in regard to the instruments, the operator, and the patient. It is in regard to the sterilization of the instruments and the manner of bringing this about that the greatest diver- sity of practice has perhaps obtained and the most differ- ent methods have been adopted. The delicate instruments used in ophthalmic surgery must naturally be handled with greater care than many of those employed on other parts of the body. Immersion in solutions of corrosive sublimate corrodes metal and ruins the edge of the knife. A four per cent, solution of carbolic acid has been proved insufficient to destroy the suppurative germs. To bring about this result with certainty, probably no agent is more efficacious than heat, either in the dry or the moist form. Yet each of these has its disadvantages. Steaming or boil- ing, the latter in simple water or in alkaline solution, is apt to be followed by rusting. Baking at a temperature of 150° Centigrade, continued for an hour or more, is (SUPPLEMENT.) absolutely certain. But all instruments subjected to this must be made with metal handles in place of ivory or bone, and it is doubtful whether the tine knives used for the corneal section would, after such baking, retain a per- fect edge. Many operators, influenced by the above con- siderations, content themselves with immersing their in- struments, previously thoroughly cleansed, in a bath of absolute alcohol before the operation, and withdrawing them one by one as they are wanted for use. The surgeon and his assistant should wear special outer garments. Those made of linen, freshly washed and ironed, answer a useful purpose. The hands should be thoroughly washed in warm water and with soap, scrubbed with a nail-brush, afterwards dipped in alcohol, and, just before proceeding to operate, in a solution of cor- rosive sublimate, one to three thousand. That the hands are thus made absolutely aseptic is not claimed, the ut- most that can be said is that certain sources of danger are averted. It is well to give the patient a warm bath the night be- fore the operation. The next day the vicinity of the eye is to be carefully cleansed with soap and water, and a compress soaked in a sublimate solution, one to five thou- sand, should be kept on the eye for at least an hour pre- vious to the operation. Just before commencing, the con- junctival sac may be washed out with the same solution, applied by means of a sterilized glass tube with rubber bulb. Particular attention is to be paid to the state of the lachrymal sac, and its freedom from infectious secre- tion is to be positively ascertained. Anaesthesia.-General anaesthesia, brought about by ether or chloroform, has now, in the vast majority of cases, given place to the local anaesthesia induced by cocaine. This agent was introduced and its properties explained by Koller in 1884. Its use has become general. Em- ployed ordinarily in the form of the hydrochlorate, and in a solution varying from twro to five per cent, in strength, its contact with the eye brings about anaesthesia of the conjunctiva and cornea, coming on in from one to two minutes and lasting some ten minutes. In an opera- tion for the extraction of cataract it should be applied two or three times. It is well to remember that the sen- sitiveness of the iris is not materially affected by the co- caine, and to prepare the patient for a certain amount of pain in case an iridectomy forms part of the operation. Besides producing anaesthesia of the surface of the eye- ball, cocaine brings about other changes. It contracts the blood-vessels of the iris, and thus gives rise to a tem- porary mydriasis; it empties also the conjunctival blood- vessels. On account of this double effect the annoying hemorrhage that sometimes so much embarrasses the performance of an extraction is much less likely to occur. There is also noticed a wider opening of the lids and a lessened tendency to wink. Finally, the intraocular pressure becomes slightly reduced. If the surgeon finds it impracticable to prepare a ster- ilized solution of cocaine on the spot, he may use a one to five thousand solution of sublimate as a menstruum. It is best to prepare the patient for a slight smarting sen- sation when the first application is made to the eye. This very rapidly disappears. Extraction of Senile Cataract without Iridec- tomy.-Toward the close of the article of which this is a continuation, written some half dozen years ago, the hope was expressed that experience would before the present time have demonstrated the true value of iridectomy in connection with extraction, and have either established the grounds of its necessity or indicated the propriety of its omission. That hope has proved fallacious. Opinion on the subject is still divided, although it is but just to^ admit that the advocates of simple extraction constantly appear in larger numbers, and assume a bolder front. Unanimity, however, has not been attained. Operators of skill and of established reputation are to be found ranged on either side. At the Heidelberg Congress in 1888 Critchett brought the matter home to all present by propounding a simple question. "If one of you," he said, "were the victim of a cataract, which operation would you wish to have performed, that with iridectomy, 157 Cataract. Cliatel-Guyon. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT ) or the simple extraction ? " Unquestionably the majority of the members would have then pronounced in favor of the former, although the minority was large and influen- tial. It is difficult to say which party would, at the pres- ent day, be the more numerous. The advantages of the non-performance of an iridec- tomy are simply and concisely stated by Professor Pflii- ger (KI. Monatsblatter fur Augenheilkunde, May, 1892, p. 161). He considers the return to simple extraction to be the greatest improvement in the cataract operation that has occurred for twenty-five years, and for the fol- lowing reasons: The conservation of the normal pupil combines optical with antiseptic advantages, in regard to the first part it having been proved that the corneal refractive power is at its best in the centre of that membrane ; moreover, (1) There is no wound of the iris, and hence far less likelihood of a depot for the collection of offensive, that is, infectious material ; (2) There is no bleeding into the anterior chamber, to obscure the subsequent steps of the operation ; (3) The wound is protected by the intact iris from con- tact with fragments of capsule, the presence of which so often causes slow healing and secondary infection, lead- ing it may be to chronic irido cyclitis and even to sym- pathetic affection of the other eye ; (4) There is a certain amount of protection against loss of vitreous ; (5) Pfltiger's experience leads him to think, strange as the fact may appear, that there is less danger of second- ary glaucoma in the case of a simple extraction. It is not asserted bv either side that the percentage of corneal suppuration is affected by the performance or non-performance of an iridectomy. Stress is laid on the claim that, after successful simple extraction, the excen- tric vision is better and light better borne. On the other hand, it may be replied that the iridectomy need not be a large one, and that being made directly upward it is largely covered by the upper lid, thus ensuring a consid- erable use of the centre of the cornea. Furthermore: 1. Considering the extent of the cor- neal wound, as well as the frequently large solution of continuity of the conjunctiva itself, the additional ter- rain afforded by the iridectomy for the collection of in- fectious material would be a matter of small account. 2. Bleeding is reduced to a minimum by the action of the cocaine, and frequently is entirely absent. 3. If prolapse of the iris, or even dislocation of the pupil occurs, the capsular fragments may yet come in contact with the wound, and these capsular fragments, as well as cortical remains, can be both more perfectly detected and thoroughly removed where the area is laid bare by an iridectomy. 4. That the statistics of simple extraction show a les- sened percentage of vitreous prolapse, as compared with the Graefe operation, is not as yet universally admitted. 5. The same may be said in regard to the occurrence of glaucoma. The experience of individual operators is here at variance. Dr. Knapp, in 1890, reported three cases of glaucoma as occurring among one hundred sim- ple extractions (Archives of Ophthalmology, vol. xix., p. 299). There are two serious drawbacks to simple extrac- tion :- The first is the difficulty in clearing the pupil of cortical and capsular remains, after the lens has been delivered. It is obvious that, with an iridectomy, there is a larger pupillary area in view and a wider aperture for the ex- trusion of whatever may occupy it. Moreover, the ma- noeuvres we generally employ for the clearing of the pupil, the tilting and rubbing, tend to maintain, if not to produce, the presence of the iris between the lips of the wound, and to render its ultimate reposition more diffi- cult. This leads directly up to the main objection to simple extraction, the liability to iris prolapse. This accident is met with in from seven to ten per cent, of all cases of this operation. Its disadvantages are the change there- by wrought in the corneal curve, the dislocation of the pupil, the lengthened convalescence entailed, and the tendency to cystoid cicatrization of the wound. It is most likely to occur in consequence of a sudden motion or injudicious effort on the part of the patient within the first few days after the operation, and may be brought about by the forcible contact of the hand with the eye during sleep. The wound being ruptured, the aqueous humor escapes, and carries with it the iris, which re- mains incarcerated between the lips of the wound. A sudden sharp pain is sometimes felt and arouses suspic- ion as to what may have occurred. But there are cases where no imprudent motion is known to have taken place, and no warning has been sounded, and yet where the first inspection of the eye, several days after the operation, reveals an extensive iris displacement. The tendency of the eye to undergo this accident is well illustrated by the statistics of a third series of one hundred cataract extractions without iridectomy, pub- lished by Dr. Knapp (Archives of Ophthalmology, vol. xix., p. 280). In seven of these cases iridectomy had to be performed during the operation. In two cases the iris folded itself over the knife and was excised. In eight cases prolapse and incarceration of the iris occurred during the healing process. Eighty-three of these patients therefore recovered with fair, round pupils, fifteen either had iridectomy per- formed or would have been better off had this been done. Performance of Simple Extraction.-There is but little to add to the account of this operation given in the article which the present one is intended to supple- ment. The long, narrow knife of Graefe may be used for the corneal incision, the puncture and counter-punc- ture being made just above the horizontal meridian of the cornea, in the transparent periphery of this mem- brane, the apex of the cut alone encroaching on the lim- bus. This is the course taken by experienced operators like Knapp, who aim at the avoidance of the peripheric section of former years. The capsule opening is made by some at the same time, and with the same knife used in the incision ; by others with a special cystitome, and may be central or peripheric, either method having its advocates. Sometimes a piece of the anterior capsule is removed with forceps specially constructed for this pur- pose. After the delivery of the lens, the pupil, if still occupied by fragments of cortical or remains of capsule, may be freed by judicious manipulation, or irrigated witii a sterilized solution of boric acid or common salt, either one-half or one per cent, in strength. These solu- tions should be slightly warmed and but little force used in their introduction. For this reason the syringe orig- inally employed by McKeown will be found less manage- able, as well as more difficult to sterilize, than the appar- atus of Lippincott (" Transactions American Ophthalmo- logical Society, Twenty-seventh Meeting," p. 115), or the " undine " of Wicherkiewicz. The writer has modified the latter instrument by attaching to its large aperture a short rubber tube, ending in a glass mouthpiece. Both hands of the operator are thus left free ; he holds the mouthpiece between his teeth, and is enabled at will to modify the pressure to any extent, or even to reverse it and withdraw masses of cortical by suction into the apparatus itself. Solutions of corrosive sublimate are no longer used for irrigation, on account of the corneal opac- ities they were found to occasionally induqe. Care must be taken to keep the opening of the irrigator as far from the pupillary edge as possible, prolapse of the iris being readily encouraged by its too immediate contact with this region. After the clearing of the pupil and anterior chamber have been completed the iris must be carefully replaced, there being no better instrument for this purpose than a flat, narrow rubber spatula. If reduction be found im- possible, or the iris shows a tendency to fall back into the wound, a small iridectomy must be made on the spot. In any case a solution of eserine (one per cent.) or pilo- carpine (two per cent.) should be dropped into the eye before closing it. 158 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Cataract. Cli&tel-Guyon. Every operator has his favorite method of dressing the eye after extraction. A circular piece of linen, dipped in a solution of corrosive sublimate, one to five hundred, may be applied directly over the closed lids, the orbital cavity then packed with corrosive cotton, and the whole retained in place by a few turns of a light roller. These dressings may be withdrawn from the steam sterilizer, if one be provided, at the instant they are needed. It has of late been seriously proposed by certain sur- geons that the nou-operated eye be left unguarded, that only a light dressing be applied to the other, and that the patient be kept in an undarkened room and allowed much freedom of motion. Good results are claimed from such an absence of treatment. This, if true, would reverse our traditions and revolutionize our practice. But as yet the only evidence in its favor is that of vague asser- tion, unsupported by definite statistics. Its advocates are at present few. Iris prolapse being, as has been stated, often due to the sudden escape of the aqueous humor, consequent on a rupture of the corneal wound, an ingenious means of obviating this has been devised by Dr. H. B. Chandler, of Boston, and proposed by him as a modification of the operation. He makes a small opening in the iris in order to allow the free escape of the aqueous, which collects behind this membrane, and claims that this prevents prolapse. His description of the operation is as follows : " After making a corneal cut, exactly at the cornea-scleral junc- tion, a very small piece of iris, about one or two millime- tres from the periphery, is caught up, either by means of a fine iris forceps, with teeth situated on the lower por- tion of the blade, as near the point as possible, or by means of a sharp hook, the bent portion being at right angles and about one millimetre long, and gently drawn out, is cut horizontally as close to the gripping instru- ment as possible ; this leaves a small round opening, not more than one to two millimetres in diameter " (Boston Medical and Surgical Journal, October 16, 1890, p. 366). For two or three days after a simple extraction greater quiet is necessary than is the case when iridectomy has been performed, the patient being cautioned to avoid straining and all sudden exertion. The occurrence of severe pain in the eye, or even a feeling of irritation, such as might proceed from the presence of a foreign body, should arouse suspicion of prolapse. If this comes on within two days after the operation the eye must be opened and the protruding iris reduced or excised. Other- wise it is better to leave it alone until the wound is thoroughly consolidated. After a lapse of several weeks the prolapse, if it shows no signs of flattening, may be excised or cauterized. The exclusive employment of one method of extract- ing cataract would seem unwise. Each case must be taken on its own merits ; its history, the condition of the eye, and the disposition of the patient carefully con- sidered, and the operation selected that seems likely to be followed by the best results. Doubtless a successful simple extraction leaves the eye in a more normal con- dition, and thus affords a more perfect result. To gain this result the operator requires a maximum of experience and skill, while the patient must be prepared for a some- what more burdensome convalescence, and must also be willing to incur a slightly increased risk of accident. Hasket Derby. CHANNEL ISLANDS. This group of islands, belong- ing to England, although geographically French, has long been "favorably regarded as possessing certain cli- matic advantages. Location.-The Channel Islands are small, their total area being only seventy-five square miles. The best known of the group are Jersey, Guernsey, Alderney, and Sark. The first-named is perhaps the most popular as a health-resort. These islands are situated in the great Bay of St. Michael, in the English Channel, and at a short distance from the western coast of Normandy. Access.-The islands are easily accessible from France. From England a steamer, leaving Southampton daily, (SUPPLEMENT.) reaches Jersey in eight hours. The actual distance from Jersey to Carteret, in the Department of Manche, is only thirteen miles. St. Helier's, the chief town and port of Jersey, lies at the eastern extremity of St. Aubin's Bay. Indications.-The Channel Islands are resorted" to principally by invalids with " weak chests " and neuras- thenia. According to Dr. Hooper, the monthly and sea- sonal variations in temperature are as follows : Degrees Fahr. Annual mean 53.06 Winter " 43.82 Spring " 50.97 Summer " 62.84 Autumn " 54.63 January 41.58 February 44.62 March 45.75 April 50.09 Degrees Fahr. May 57.08 June 61.31 July 63.5" August 63.72 September. 59.8 i October 55.65 November 48.42 December 45.27 The number of rainy days is less than in England, al- though the actual precipitation of moisture is greater. It is important to remember that the climate, although mild and equable, is very humid. Dr. Scholefield speaks as follows on this point (Scoresby-Jackson, "Medical Climatology ") : " Besides its insular position, the island (Jersey) is everywhere thick set with wood, every little section of ground being hedged in with four rows of trees. The island, moreover, is continually intersected at intervals of a few hundred yards by pathways, beset with their double tile of trees, planted on high embankments. Here neither the sun's rays can penetrate, nor can currents of air freely ventilate the earth. " Of course, in the absence of high mountains, the islands are exposed to every variety of wind, and fre- quent gales are observed. Westerly winds predominate. The cold northwest winds of spring are apt to annoy in- valids. Apart from this the islands enjoy an equable, soft, humid atmosphere, with astonishingly mild days, and very little frost or snow. The day and night varia- tions of temperature are slight. The climate is thus rather relaxing, and patients requiring a vigorous, bracing air and exhilarating conditions should not be sent there." Edmund C. Wendt. CHARLOTTENBRUNN. A watering-place in Silesia, Germany. Location.-Charlottenbrunn is prettily situated in a valley, at an elevation of 1,300 feet above the sea. The hills afford it ample protection against the cold north and northwest winds, and leave it exposed only to the warmer southern breezes. Pine-woods surround it. The springs are cold, alkaline chalybeate ones. But the place owes its reputation quite as much to its climatic advantages as to the mineral waters. It is a quiet spot, and only semi- fashionable. Season, May to October. Access.-Bad Charlottenbrunn is a railroad station on the Dittersbach-Glatz Railroad. Analysis.-The Charlottenquelle and There sienquelle are both moderately powerful alkaline iron springs, hav- ing the usual composition of chalybeate waters. Indications.-Neurasthenia, heart disease, chlorosis, and all diseases with a tendency to anaemia, derive benefit from a course of these waters. Accommodations.-Attractive hotels and boarding- houses, modern thermal establishments, with all comforts, are found here. Milk, whey, kefir, and " herb-juice " cures are special features. Edmund C. Wendt. CHATEL-GUYON. A watering-place in the Depart- ment of Puy-de-D6me, France. Location.-ChAtel-Guyon is charmingly situated in a beautiful region of Auvergne, and at an elevation of 1,300 feet above sea-level. The climate is pleasant and equable. There are over twenty saline chalybeate, mag- nesia springs, their temperature varying from 50c F. to 110° F. The French lay great stress on the purgative quality of these waters. But they cannot in any way compare with those of Carlsbad. The water contains free carbonic-acid gas, and the baths are said to be both 159 Chatel-Guyon. Chloroform. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. tonic and soothing. On account of the bubbles collect- ing on the skin, they are called " Champagne-baths." Access.-By the Paris, Lyons & Mediterranean Rail- road to Riom, vid Nevers. Thence by carriage in fifteen minutes to Chatel-Guyon. Analysis.-According to Lefort, the Deval spring contains in 10,000 parts of water : Grammes. Hydrochloric acid (in combination) 21.33 Sulphuric acid (in combination) 2.93 Silicic acid 1.26 Carbonic acid (in combination) 10.92 Carbonic acid free 13.50 Potash 1.12 Soda 12.87 Magnesia 6.70 Lime 9.90 Oxide of iron 0.21 Alumina 0.08 Indications.-These springs are chiefly employed in gastric and hepatic derangements, associated with con- stipation, as well as in female diseases with a tendency to anaemia. But French physicians also recommend them in gout, diabetes, Bright's disease, and many other chronic ailments. Taken at the rate of about four to six glasses a day, they are purgative, but smaller quantities fail to act on the bowels. The season lasts from the middle of May to the middle of October. Accommodations.-There are several bathing estab- lishments, with the necessary appliances, but the Etab- liasement Brosson, being the most modern, is to be preferred. Hotels fairly good. The place is not a fash- ionable one. Edmund C. Wendt. CHLORALAMID. Introduced in 1889, by Professor von Mering, of Strasbourg, for its hypnotic properties, it is now looked upon as one of the most useful drugs we possess for this purpose. It results from the chemical combination of two parts of chloral anhydride, CC13 CHO, and one of formamide, CHO NH2; its formula is CCls CH. OH, CONH2. It is not a mechanical mixture, and would be more correctly named chloral formamide, or formiate of chloral. It occurs in white crystals, which have a faint bitter taste, no odor, and are neutral in reaction. It is soluble in cold water, one part in ten, and in one and a half part of alcohol. The salt should never be dissolved in hot water, or heated above 120° F., as at that temperature it decomposes. It is also decom- posed by alkalies and alkaline carbonates. It is compat- ible with weak acids which increase its solubility and render the solution more stable. Chloralamid is supposed to be decomposed in the circulation by the free alkalies in the blood, and its hypnotic action1-produced by the chloral set free. The depressing effect on the respiration and heart does not follow, as this is counteracted by the stimulating action of the formamide. In addition to this absence of depressing action, it has numerous advantages. It is free from any disagreeable taste, and its solubility renders it easy of administration. It does not derange the digestive organs, and no danger- ous or alarming symptoms follow its use. It is not fol- lowed by headache, giddiness, or any disturbance of the nervous system. The sleep induced is tranquil and easy, and the awakening gradual and pleasant. It follows in from half an hour to one and a half or two hours after taking the dose, and lasts for five or eight hours. Occa- sionally a drowsiness continues, or the sleep is much pro- longed, but it has never been found to be of serious im- port. The drug does not possess any cumulative action, nor does it give rise to a craving. It may be administered for a prolonged period without it being necessary to in- crease the dose. Since its introduction, chloralamid has been used with safety in all forms of insomnia. It has proved of great- est service in the sleeplessness of a purely nervous ori- gin, especially when unaccompanied by pain, or with pain very slight in character ; in nervousness, in hysteria, in neurasthenia, in old age, in spinal diseases, and in chronic alcoholism, its effect will be very decided. When pain is (SUPPLEMENT.) very marked its action is not to be depended upon, but reports of its use in such cases show that it may be of much benefit in locomotor ataxia, and in the pains arising from aneurism and neuralgia. In chronic mental dis- eases, as melancholia, and mania unaccompanied with much excitement, it has proved of marked benefit. In cardiac disease where chloral hydrate cannot be used, it may be given with perfect safety, and in such cases as car- diac asthma, dyspnoea, its happiest results are obtained. In febrile states, as in phthisis and typhoid fever, it acts favorably ; in the former it lessens the cough and night- sweats, and lessens the depression that accompanies these symptoms. The effect is thought to be due to its stimu- lating action on the respiration which promotes the re- spiratory changes, and lessens the carbonic acid in the blood. In whooping-cough, laryngismus stridulus, as well as in pulmonary asthma, the drug not only pro- duces sleep, but also allays the disease, the paroxysms becoming less severe, and the intervals more prolonged. The dose advised when the drug was first used was from twenty to forty-five grains, and this has been very gener- ally adhered to. The average dose employed is about thirty grains. As a rule, it is advisable to begin with a smaller dose of fifteen to twenty grains, when the insom- nia is not accompanied by pain or excitement. On ac- count of its solubility in alcohol, it is easily given in solu- tion diluted with some aromatic elixir. Brandy- or whiskey is a favorite means and adds to its beneficial action. If alcoholic solution is not desired, dilute hydro- chloric acid will be found to serve the purpose. It may also be given in cachets. For whooping-cough and other spasmodic affections, it is given in doses of two grains every two hours. Enemata may also be employed when such a means of administering the drug is desired. The following formula is recommended : Chloralamid, 14 grains ; dilute hydrochloric acid, 3 drops; alcohol, 20 drops ; water, 3 ounces. Beaumont Small. CHLORALIMID (Trichlorethylidenimide), CCh CH NH. This substance is obtained by the action of acetate of ammonia on chloral hydrate ; it may also be formed by heating chloral-ammonia. It is a crystalline acidular powder without taste, smell, or color, insoluble in water, soluble in alcohol, ether, and oils. It is not affected by heat or moisture. It possesses similar properties to chlor- alamid, but is more active. As an hypnotic, it is given in doses of from five to thirty grains. It is introduced as a substitute for chloral hydrate and chloralamid. It has not the acrid taste of the former nor the bitter taste of the latter. In smaller doses it is said to have an antipyretic and analgesic action. This drug has not been used to any extent, and its superiority to chloralamid has yet to be determined. Beaumont Small. CHLOROBROM is the registered trade name of a combination of chloralamid and bromide of potassium. This combination, which possesses the active properties of both its constituents, has recently been advised by Professor Charteris, of Glasgow, as a remedy for sea- sickness. He had used it in many cases with very grati- fying results. A dose is given after the stomach has been emptied of its contents, the sense of depression is relieved and nausea checked, a quiet sleep follows, from which the patient awakes relieved of all the distressing symp- toms. The remedy may be prepared as follows : Chloral- amid, bromide of potassium, of each one and a half drachms ; water, 2 ounces ; syrup, 1 ounce. One to one and a half tablespoonful for a dose. Beaumont Small. CHLOROFORM ; HYDERABAD COMMISSION. Chloroform during the past few years has received its share of attention (see article on Anaesthetics) and a large amount of experimental research has been devoted to anaesthetics. Perhaps the most important work done on this subject since the use of anaesthetics was introduced, has been the investigations and report of what is known as the Hyderabad Chloroform Commission. In 1888 the Nizam of Hyderabad appointed the first commis- 160 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Chatel-G u you. Chloroform. sion, composed of Surgeon P. Hehir, M.D., I. A. Kelly, L.R.C.P.S. Ed., and A. Chamarette, I.M.S., to perform a series of experiments upon dogs with chloroform, express- ing a wish that they should have a practical bearing on the way in which the administration of the anaesthetic ought to be conducted in the human subject. This com- mission was formed at the suggestion of Surgeon-Major Lawrie, President of the Hyderabad Medical School. Mr. Lawrie had been a pupil of Syme, of Edinburgh, and retained the views of that eminent surgeon regarding the action of chloroform. Professor Syme had always main- tained that chloroform was a safe anaesthetic if properly administered ; that its toxic action always showed itself on the respiration before the heart was affected, and that no accident would occur if the respiration was carefully watched. Opposed to this was the very generally accepted view of what is known as the London school, which considers that the heart is the source of danger, and that death dur- ing chloroform anaesthesia was due to its failure. The purpose of the commission was to inquire into the effect of the anaesthetic on the respiration and heart, and the value of artificial respiration to resuscitate when a fatal termination was threatened. A great number of experiments were made upon dogs, to which chloroform was given in various quantities and under varying condi- tions, to produce a fatal result. The conclusions reached were in accord with the views of Mr. Lawrie ; in every instance the respiration ceased before the heart, and where artificial respiration was commenced when danger was indicated by the breathing, recovery followed, but if precautions were neglected until the pulse gave warning, it was too late to resuscitate. The report concludes with the opinion " that death from chloroform narcosis in dogs is absolutely avoidable, and ought never to occur from surcharging of the blood with chloroform. Once anaesthesia is induced, so long as the respiration is kept up there is no fear of a cumulative action-the drug is rapidly eliminated. Interference with this elimination brings about changes in the respiratory mechanism which ought to arouse suspicion and prepare us for artificial respiration." When the editors of the London Lancet became aware of these experiments and the conclusions so much at vari- ance with their own, they criticised the latter rather severe- ly. It was thought that such important conclusions were arrived at rather hastily, and the experiments were not considered sufficiently precise to justify their acceptance. In consequence, the Nizam, with great liberality, de- cided to have another commission appointed to repeat the experiments of the former commission in a more scientific and exact manner. A check for one thousand pounds was forwarded to the editors of The Lancet, that they might select any one they wished to conduct the experiments in such a manner as they might think neces- sary. Dr. Lauder Brunton was chosen and sent to India as their representative. His qualifications were all that could be desired : he was an authority in therapeutics and was known to hold views not in accord with the conclusions of the former commission. The second Hyderabad Commission was composed of Surgeon-Major E. Lawrie, M.B. Ed., Dr. Lauder Brunton, F.R.8., Surgeon-Major G. Bomford, M.D. Lond., Dr. Rustomji of the Nizam's Medical Service, and associated with them were the members of the former commission. The experiments were begun in October, 1889, and continued for some two months. They were car- ried on in the hospital in connection with the Hyderabad Medical School, and the native government afforded every facility for making the work as thorough and per- fect as possible. The most approved apparatus and ap- pliances were provided for observing the action of the pulse, the respiration, and the blood pressure. The objects kept in view by the commission were the suitability of chloroform as an anaesthetic, the effect of pushing it until dangerous symptoms or death took place, and the modifications of the anaesthesia that were effected by various degrees of asphyxia, by shock, and by the ad- ministration of various drugs. (SUPPLEMENT.) The experiments numbered over four hundred and thirty. The majority were upon dogs and.monkeys, but some were made upon horses, goats, cats, and rabbits. Two methods of administering the chloroform were chiefly employed. In the first a known quantity was allowed to evaporate in a certain amount of air, and the animal made to breathe the mixture, in the other method a certain amount of chloroform was administered without attention being given to the amount of air inhaled. To keep a record of the blood pressure two tracings were taken on different drums. One recorded the press- ure throughout the whole experiment, but was too slow to indicate any variation in the pressure during the diastole and, systole of the heart, the other was taken on a rapidly revolving drum and would indicate the slight- est variation. The tracing of the latter would have been too lengthy to preserve, but it was so arranged that the pressure could be taken at any moment and for any length of time during an experiment. In certain in- stances the motion of the heart was registered by a needle inserted through the chest-wall and into the heart, and the movements conveyed by means of a thread extending from the free end of the needle to a lever writing on the moving surface of the drum. The records of the respiratory movements were ob- tained by inserting a needle through the chest • wall into the diaphragm, the movements of the free end be- ing recorded. All these records were photographed and reproduced for publication, and, together with the de- tailed account of the experiments, provide an amount of evidence which any one may inquire into, and by its means corroborate or disprove the conclusions arrived at by t^e commission. The work of the commission, including the account of the experiments, the tracings, and a large num- ber of letters and papers, has been published in the lengthy report issued. For the report itself, the pages of the London Lancet for 1890 may be consulted. The result of their work was to corroborate the conclu- sions of the first committee, and these conclusions were fully concurred in by Dr. Brunton, who became con- vinced that the respiration was the part first affected and should be watched for signs of danger. The commission agrees, up to a certain point, with many of the views of their opponents. It is admitted by all that there is a gradual fall in the blood pressure throughout the administration of chloroform, and that this may terminate in death. The commission, however, hold that this is due to impoverished blood acting on the medulla and producing vaso motor paralysis; the others consider it due to a direct depressing action on the heart itself. Both sides also agree that early in the ad- ministration of the anaesthetic a rapid fall in the blood pressure frequently occurs. Upon this fall the greatest interest centres, as it is at this period that so many fatal results occur. The commission say this fall is due to accidental causes, producing asphyxia, and that it might always be avoided by care in administration. The as- phyxia by acting on the vagus reduces the action of the heart and lessens the supply of poisoned blood. They consider the slowing of the circulation as nature's method of protecting itself. The opponents to this view hold that it is due to a direct paralyzing action on the heart. A series of very valuable experiments have since been made by Professor McWilliam, of Aberdeen, who demon- strated that with this early fall in blood pressure, a dila- tation of the heart takes place, in some instances, even before the reflexes are lost. When this becomes extreme the heart fails to contract, although it may continue to beat in a feeble and uncertain manner. These observa- tions have since been confirmed by many others, among them, Dr. Hare, of Philadelphia. In consequence of such a diversity of opinion in such an important subject we are left in a very unsettled and unsatisfactory state of mind. Fortunately at this junc- ture His Highness the Nizam again comes to the rescue, and in a very creditable and liberal manner determines upon another commission, with the hope of reconciling the opposing views. The appointment of Dr. H. A. Hare to conduct the investigation will give general satis- 161 Chloroform. Chloroform. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) faction, and is all the more gratifying as his views are known to be in opposition to those of the last commis- sion, thus indicating an earnest desire, on the part of the Nizam, to have all sides generously treated. The following conclusions of the second Hyderabad Commission are reproduced in full, as they are of historic importance and will be of interest in connection with the work of the forthcoming commission : 1. Chloroform, when given continuously by any means which insures its free dilution with air, causes a gradual fall in the mean blood pressure, provided the animal's respiration is not impeded in any way, and it continues to breathe quietly without struggling or in- voluntary holding of the breath, as almost always happens when the chloroform is sufficiently diluted. As this fall continues, the animal first becomes insensible, then the respiration gradually ceases, and lastly, the heart stops beating. If the chloroform is less diluted the fall is more rapid, but is always gradual, so long as the other conditions are maintained ; and however concentrated the chloroform may be, it never causes sudden death from stoppage of the heart. The greater degree of dilu- tion the less rapid is the fall, until a degree of dilution is reached which no longer appreciably lowers the blood pressure or produces anaesthesia. 2. If the inhalation is interrupted at any stage, the fall of pressure still continues at a rate which depends alto- gether on the rapidity of the fall while the chloroform was being inhaled. This after-fall is probably due to absorption of a portion of the residue of chloroform in the air-passages after the stoppage of the inhalation. In this way it often happens, if chloroform is given rather freely, that, though the respiration may be going on when the chloroform is discontinued, it afterward stops. 3, If the administration of the chloroform is stopped at an early stage, the pressure very soon begins to rise again, and gradually becomes normal ; but if the chloro- form is pushed further, there comes a time, not easy to define, when the blood pressure and respiration will no longer be restored spontaneously, although the heart con- tinues to beat after the inhalation is stopped. 4. If the fall has been very gradual it may occasionally happen that the respiration stops completely, and still the blood pressure rises again, the respiration recom- mencing spontaneously in the course of the rise. In the same way, when the inhalation has been discontinued, the respiration may stop during the after-fall of the blood pressure and begin again spontaneously. As a rule, if the respiration has stopped, or even becomes slow and feeble at the time when the inhalation is discontinued, and artificial respiration is not resorted to, the fall in blood pressure will continue until death ensues. 5. There are two conditions which frequently disturb the gradual fall of the blood pressure, viz., struggling and holding the breath-and it is only by great care that they can be avoided in animals. 6. Struggling, independently of any change in the respiratory rhythm, appears generally to raise the blood pressure. In one case of a dog much weakened from phosphorus, the pressure fell every time he struggled. 7. When struggling is accompanied, as it often is, by acceleration of the respiration and pulse, especially if the respiration is deep and gasping, it leads to a more rapid inhalation of chloroform, and consequently to a more rapid fall of blood pressure and a greater after-fall. In order to keep the chloroform cap or inhaler in its place during the animal's struggles, the administrator is obliged to hold it down more tightly over the nose and mouth, and this materially assists in hastening the rapidity of the inhalation, and consequently of the fall in blood pressure. 8. The effect of involuntarily holding the breath- which, as anybody can prove by experiment upon himself, must happen when an inhaler saturated with chloroform is first applied to the face-is much more remarkable, the pressure often falling with great sudden- ness, while the heart's action is markedly slower. As soon as the animal draws breath again, the pressure rises as suddenly as it fell, but the gasping respirations which succeed then cause very rapid inhalation of the chloro- form, with immediate insensibility and a rapid fall of blood pressure, which quickly becomes dangerous. 9. The combination of struggling with alternate hold- ing the breath and gasping, which results if chloroform is applied closely to the face without sufficient dilution with air, causes the violent fluctuations, and then a speedy fall of the blood pressure, which very soon leads to a dangerous depression with deep insensibility and early stoppage of the respiration. The after-fall under these circumstances is rapid and prolonged. It is this combination of events which causes struggling animals to go under chloroform so quickly. 10. The effect of holding the breath may occasionally cause a temporary fall of blood pressure after the chloro- form inhalation has been stopped, or even when the animal is quite out of chloroform. This fall is recovered from directly the animal breathes again. 11. Slight continuous asphyxia, such as is produced by pressure on the neck by straps, a badly fitting muzzle, or hindrance of the chest movements by the legs being too lightly bound down, give rise to exaggerated and irregular oscillations of the blood pressure, and slowing and irregularity of the heart's action. If it leads to, or is accompanied by, deep gasping inspiration, it is apt, like anything else which causes this, to increase the intake of chloroform, and bring about a rapid decline of blood pressure. 12. Complete or almost complete asphyxia, as by forcibly closing the nose and mouth or closing the tracheal tube after tracheotomy, has an effect similar to, but more marked than, that produced by holding the breath, and the' character of the trace corresponds pre- cisely to that produced by irritation of the peripheral end of the cut vagus. The pressure falls extremely rapidly, sometimes almost to zero, and the heart's action becomes excessively slow, or even stops for a few seconds. If the Fick trace of Experiment 148 be compared with the photographic reproduction of Trace A, of the Glasgow Committee, it will be seen that they are identical, and that the slow action of the heart with great fall of press- ure, which the Glasgow Committee attributed to some capricious action of chloroform upon the heart, was un- doubtedly due to asphyxia. 13. This effect of asphyxia is the result of stimulation of the vagi. The proof of this is (a), that the trace corre- sponds exactly, as stated above, to that produced by direct irritation of the vagus ; (b), division of both vagi entirely abolishes it, and (c), the administration of atro- pine, which paralyzes the vagus, also abolishes it. 14. In Trace 158 (Fick 4), which was taken during asphyxia after a full dose of atropine, it will be seen that there is an alternately slow and rapid pulse according to the phase of the respiratory movement, but no continued slowing of the heart, as in vagus irritation. But there was still a distinct fall of pressure after the atropine when the breath was held, and it was thought that the slowing of the pulse above noted in this condition might be due to the disturbance of the heart from tension in the pul- monary vessels in the absence of respiratory movement, rather than to irritation of the vagi. To test this point Experiment 184 was instituted. In this experiment the dog's chest was forcibly inflated with bellows connected by a tube with the trachea, and the effect of this proceed- ing was to cause a fall of pressure and slowing of the heart exactly the same as involuntary holding of the breath. The dog was then poisoned with atropine, after which inflation of the chest still caused a fall of pressure, but without slowing of the heart. The fall of pressure must be in some degree independent of vagus irritation, which, however, usually accompanies it. 15. It only remains to be considered whether the slow action or temporary stoppage of the heart with great fall of pressure produced by vagus irritation is, in itself, ap element of danger in chloroform administration, and if it is not, wherein the danger actually lies. 16. The experiments in which deliberate irritation of the vagi was carried on during anaesthesia, show unmis- takably that irritation of these nerves diminishes rather than enhances the danger of anaesthetics. The effect 162 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Chloroform. Chloroform. upon the heart is never continuous, and as the vagus becomes exhausted, or when the irritation is taken off, the blood pressure rises again, as it does when the same result is produced by asphyxia. The slowing of the heart and circulation which is produced by irritation of the vagus by any cause, such as holding the breath in chloroform administration, retards the absorption and conveyance of chloroform to the nerve-centres, just as holding the breath, whether voluntary or involuntary, prevents chloroform from entering the lungs ; and of itself, slowing, or temporary stoppage of the heart in chloroform administration', is not dangerous. 17. To answer the second part of the last question in paragraph 15 is easy enough, if it is kept in mind that the effect of vagus irritation upon the heart is never con- tinuous ; and in chloroform administration, as the press- ure rises again after the slowing of the heart and tem- porary fall of pressure produced by any form of as- phyxia, violent respiratory efforts with bounding heart's action lead, as in the case of struggling, to a rapid and dangerous inhalation of chloroform, and consequent rapid and dangerous decline in blood pressure. It is, in fact, the temporary exhaustion of the vagi after stimula- tion that is to be feared, and not the actual stimulation, as long as it is continued. 18. In accordance with this fact it will be found that in chloroform administration neither holding the breath, even if involuntary, nor vagus inhibition can be kept up beyond a certain time ; and if the chloroform is not re- moved from the face, one or both of two things may happen : (a), When the animal breathes again, it takes deep and gasping inspirations, the lungs become filled with chloroform, and an overdose is taken in with ex- treme rapidity ; (5), when the restraining influence of the vagus is taken off the heart, through the irritation ceasing or the nerve becoming exhausted, the heart bounds on again, and the circulation is accelerated in proportion. The blood then becomes quickly saturated with chloroform, and an overdose is at once conveyed to the nerve-centres. The theory which has hitherto been accepted is, that the danger in chloroform administra- tion consists in the slowing or stoppage of the heart by vagus inhibition. This is now shown to be absolutely incorrect. There is no doubt whatever that the control- ling influence of the vagus on the heart is a safeguard, and that it is the exhaustion of the nerve which is dan- gerous. 19. It can be readily understood how a condition in which the pulse is rapid and bounding, with high blood pressure, leads to more rapid absorption of chloroform into the lungs, and a more rapid propulsion of the chloro- formed blood to the medulla oblongata, and consequently to a more rapid paralysis of the respiratory and vaso- motor centres, and precipitous fall in the blood pressure. Such a condition is produced in some cases by ether, or by division of both vagi, or by a full dose of atropine. Not only is the poisoned blood carried more swiftly to the vital centres in these cases, but added to this there is the fact that, as the heart is already doing its utmost be- fore the chloroform is given, it is unable to stave off by increased work the fall in pressure that occurs when the vaso-motor centre is paralyzed. On the other hand, it seems clear from Experiment 92 that the direct action of chloroform upon the heart's substance is not the cause of the fall of pressure that occurs when it is inhaled. 20. In Experiment 92, repeated injections of 20 minims of chloroform were made into the jugular vein, and its effect was not to paralyze the heart, but to produce anaesthesia and a gradual fall of blood pressure, exactly as if the chloroform had been inhaled. In Experiment 72, after a considerable amount of ether had been injected into the jugular vein, and a bounding condition of pulse had been produced, the effect of injecting chloroform into the jugular was much greater, and the fall of blood pressure much more rapid and dangerous than in the case where chloroform alone was injected. Granting, then, the truth of Minger's conclusions from experiments on the frog's heart (which have not been repeated and confirmed by the commission) that chloroform has a grad- ual paralyzing effect upon the heart's tissue, we must conclude that such an effect, in the degree in which alone it could occur in the practical inhalation of chloro- form, would rather be a source of safety than of dan- ger. 21. The committee discussed the advisability of cutting the vagi some time previously to experimenting on the blood-pressure with chloroform. The effect of this pro- cedure is to cause continuous rapid action and tendency to exhaustion of the heart, as well as to degeneration of the terminal branches of the nerves in the heart if the animal live sufficiently long. Such experiments might be of some interest theoreti- cally, and also have had a practical bearing upon the con- dition of the heart in certain cases of chronic alcoholism ; but the committee decided not to perform them, as it considered the end to be gained did not justify the pain they would have inflicted. 22. In Experiment 178, the case of a dog that had had morphine, remarkable slowing, and even temporary ces- sation, of the heart's action occurred again and again at the same moment as the respiration stopped; but the heart invariably recovered itself, and began again to beat regularly, before any steps were taken to restore the ani- mal, and without any respiration occurring. We find in this case that it was possible to restore the animal even after unusually long intervals had been allowed to elapse between the cessation of the natural and the commence- ment of the artificial respiration. The failure of the heart, if such it can be called, instead of being a danger to the animal, proved to be a positive Safeguard, by pre- venting the absorption of the residual chloroform and its distribution through the system. 23. The effect of artificial respiration after the natural respiration has ceased, is to cause an alternate rise and fall of small amount in the blood-pressure, the trace thus formed upon the drum being a coarse imitation, altered somewhat by the shaking of the table, of the natural re- spiratory curve. The difference consists chiefly in the fact that the artificial rise always coincides with expira- tion or compression of the chest. After artificial respira- tion has been continued for a certain time, the blood press- ure begins to rise again, and a little later natural respi- ration returns. 24. The effect of artificial respiration in restoring an animal after the respiration had stopped was always marked. In a few exceptional cases, such as Experiment 159-a phosphorus dog-and Experiment 142-a horse which had an enormous overdose, although the artificial respiration was commenced as soon as possible after the breathing was noticed to have stopped, it was not suc- cessful. 25. Complete stoppage of the respiration always means that an overdose has been administered, and the overdose may have been so great as to produce a very prolonged after-fall of blood pressure, and may thus render restora- tion impossible. As it is impossible to say whether, after chloroform has been pushed and then discontinued, the respiration will be restored spontaneously or not, so it is never in any case certain that artificial respiration will restore the natural respiration and blood pressure, no matter how soon it is commenced after the respiration stops. A great deal depends upon the amount of the af- ter-fall ; in some cases, even after the respiration has been restored, the pressure continues to fall and respira- tion again ceases, and artificial respiration then fails. We thus find respiration restored by artificial respiration while chloroform is still being absorbed, and this tends to show that artificial respiration does not merely pump the chloroform out of the blood, but exerts considerable influence in exciting the natural respiration. 26. The time which elapses before artificial respiration succeeds in restoring natural respiration varies very greatly. In one case, Experiment 116, it was continued for eleven minutes before the first natural gasps com- menced. This period is undoubtedly prolonged in some cases by a condition of physiological apnoea, which ren- ders it unnecessary for the animal to breathe. Conse- quently, whenever the pressure rose considerably during 163 Chloroform. Chloroform. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. artificial respiration it was stopped, and the animal then generally breathed after a few seconds. 27. The time which may be allowed to pass with im- punity before commencing artificial respiration also seems to vary considerably. This point was not particu- larly attended to in the manometer experiments, except in Experiments 162 and 178, which were instituted to test the truth of the opinion formed by the sub-commit- tee, that morphine had some slight action in impairing the efficiency of artificial respiration. In these cases the commencement of artificial respiration was postponed for more than two minutes after respiration ceased, and was successful; but this is certainly far above the average in- terval that can be allowed with safety. The success of artificial respiration in restoring the blood pressure is in some cases very remarkable ; wide especially Experiment 40, in which the heart had apparently ceased beating, and the dog was believed by everyone present to be dead, and yet recovered with artificial respiration. The suc- cess in this instance is due to the fact that chloroform had only been administered for a few seconds, and that the depression was the result, not of continuous chloro- form administration until respiration ceased, but of a long and severe after-fall. 28. It corresponds to those cases which are so often reported, in which dangerous failure of the heart is said to have occurred some minutes after the administration of chloroform had been discontinued, and which are some- times restored, and sometimes not, by artificial respiration. There is nothing at all sudden about the failure of the heart in these cases, but the attention of the chloroform- ist, which has been wandering, is suddenly called to the fact that the patient is apparently dead. When the animal was really dead, it was found in some cases that artificial respiration still maintained a small amount of mean pressure in the manometer. In others the pressure seemed to fall to the zero line between each compression of the chest. 29. The dangers of too vigorous artificial respiration were illustrated in some of the accidental deaths. In one case the liver was badly ruptured, and in another the pleural cavity was full of blood. In these cases-Experi- ments 80, 92, and 103-rhythmical movements of the diaphragm were noticed after the heart had ceased beat- ing and after the chest had been opened. It is remarka- ble that in two of these cases the splanchnic nerve had been divided. The third was a case in which chloroform had been injected into the jugular vein, and in this case there was a synchronous movement of the jaw as well. In all, death and stoppage of the heart had occurred grad- ually, and in Experiment 103 the heart was still irrita- ble. These movements cannot be called respiration, though the last gasp of a crying animal, that ineffective jerk of the diaphragm which is such a fatal symptom, is very likely in many cases a movement of the same character. Similar movements, which were continued much longer, occurred in Experiment 104, after the thorax was opened, while the heart was still beating. Still more remarkable convulsions of the muscles of the jaws, ears, and forefeet occurred in Experiment 167, in the case of a dog that had been poisoned with nicotine. These movements continued at regular intervals for more than ten minutes after death, and were sufficiently forcible to jerk the handles Of a pressure-forceps, fixed on the end of the tongue, off the table at each spasm. In a rabbit, in Experiment 153, the auricles of the heart con- tinued to beat rhythmically for three hours after it was supposed to be dead from chloroform and its thorax had been laid open. Irritability of the heart after death was noticed in many cases, but seemed to be most marked in cases where ether had been used. 30. Chloroform injected into the heart through the jugular vein did not cause clotting of the blood, as was the case when ether was injected. 31. In the course of the experiments of the committee various drugs were administered in order to ascertain if they had any effect in modifying the action of chloroform. The result showed that none of them had any effect in pre- venting the typical descent of the blood pressure that oc- (SUPPLEMENT.) curs when chloroform is inhaled. Atropine, when given in a dose sufficient to paralyze the vagi, of course prevents the action of those nerves in asphyxia, and by increasing the action of the heart it appears to cause a more rapid descent in the blood pressure when chloroform is inhaled, as has been already explained. Morphine appeared, in Experiment 162, to render the rise in blood pressure, that occurred when the chloroform was discontinued, slower and less complete, and to bring about a more or less per- manent condition of anaesthesia. It may be noted that the animal used in this was a monkey; and in other ex- periments with monkeys, when no morphine had been given, it was remarked that the animal, after a few inhala- tions of chloroform, would often lie quite quiet, in a state of semi-insensibility, for a longtime without further inha- lations ; still this condition was much more marked in Experiment 162 than in any of the others. No action of this kind was noticed in the dog in Experiment 178, but other experiments (90 and 94) showed that pariah dogs are very indifferent to the action of morphine, and it is probable that the dose of morphine in this case was in- sufficient to bring about the condition noted in the mon- key. The peculiar behavior of the heart in Experi- ment 178 was not the result of the previous administration of morphine, for a similar phenomenon had occurred in other cases (49 and 60) in which no morphine had been given. Experiments 162 and 178 prove conclusively that morphine had no effect in shortening the period that may be allowed to elapse between the cessation of natural res- piration and the commencement of artificial respiration. 32. The other drugs used had no effect on the action of chloroform, except when their own special action be- came the leading feature in the case-as, for instance, during the vomiting from apomorphine (Experiment 104, Fick 9), or the convulsions produced by nicotine (Experi- ment 167). 33. In order to test the alleged danger from shock dur- ing chloroform administration, the committee performed a very large number of those operations which are reputed to be particularly dangerous in this connection-such as extractions of teeth, evulsions of nails, section of the muscles of the eye, snipping of the skin of the anus, etc. In many cases the operation was performed when the animal was merely stupefied by the chloroform, and not fully insensible. In such cases a slight variation in the blood pressure would sometimes occur, such as one would expect from the irritation of a sensory nerve or from the struggling that ensued; but in no case, in any stage of an- aesthesia, was there anything even suggestive of syncope or failure of the heart's action. In thrusting a needle into the heart there was often a momentary but well- marked fall of the blood pressure; but even this -was absent in all other injuries. If chloroform really had any power to increase the tendency to shock in operations, it is impossible to believe that it would not have been manifested, to some degree at least, in one or other of these numerous experiments. The commission was, how- ever, not content with this negative result, and deter- mined to ascertain the effect of direct irritation of the vagi during continued chloroform administration. The result of such experiments (65 and others) proved that inhibition of the heart's action prevented, rather than assisted, the fatal effects of prolonged chloroform inhala- tions. An animal that was put into a condition' of extreme danger (from which it could only be restored by means of artificial respiration) by inhalation of chloroform for one minute, recovered spontaneously and readily after five minutes of chloroform inhalation, together with in- hibition of the heart by electrical irritation of the vagus carried on simultaneously. In one of these experiments (117) chloroform was pushed for seven minutes ; and during continued irritation of the vagus the animal re- peatedly came round without artificial respiration. The danger really begins w'hen the irritation is discontinued or fails to inhibit the heart, and thus enables the chloro- form in the lungs to be rapidly absorbed and thrown into the system. The danger is certainly increased by delib- erately pumping the chloroform into the lungs by means of artificial respiration, for animals in which this was 164 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Chloroform. Chloroform. done, although they showed a tendency to recover when the chloroform and irritation of the vagus were discon- tinued, afterward died rapidly. 34. On another occasion, during Experiment 117, the animal was very nearly killed by a comparatively short inhalation of chloroform, owing to the electrodes becom- ing accidentally short-circuited and failing to keep up the irritation of the vagus. Something similar occurred in Experiment 177, the effect of the irritation of the vagus passing off while the chloroform was still being pushed, and thus putting the animal into a condition of extreme and unexpected jeopardy. Nothing could be more strik- ing than these near approaches to accidental death from failure to irritate the vagus efficiently. 35. Other experiments were made to test the truth of the statement that chloroform increases the action of electrical stimuli applied to the vagus, and showed con- clusively that it has no such effect. In one instance only the inhibition seemed to be intensified as the chloroform was commenced, and diminished when it was discontin- ued : but, apart from the fact that the supposed effect ceased much too suddenly, a repetition of the experiment, on the same and other animals, showed that there was in reality no such effect. The increased inhibition in this instance was due to the chloroformist compelling the attendant who was holding the electrodes to change his position, and thus making him unconsciously apply them more efficiently. When the chloroformist withdrew they were restored to their former position. This affords an instance of the care that has to be taken in making ex- periments, if one is not to be deceived. 36. To test the effect of shock due to vaso-motor change rather than to affection of the heart, Goltz's experiment on the frog was repeated on three dogs. In one there was slight lowering of pressure, which was not extensive, and in the others no effect was produced at all. Other operations which seemed likely to produce shock, such as violent blows upon the testicle, were singularly devoid of effect. Failing to lower the blood pressure by any of these methods, recourse was had to section of the splanch- nics ; but the low condition of blood pressure which this produced, appeared, like stoppage of the heart from vagus irritation, to be a source of safety rather than of danger during chloroform administration. In this .connection Experiment 111 may be studied. There was not much external hemorrhage, but the splanchnics were divided- a proceeding which, as is often said, bleeds the animal into his own vessels. The pressure was after this ex- tremely low, but chloroform was repeatedly given and various other actions taken, and then chloroform had to be pushed on a saturated sponge enclosed in a cap for eleven minutes before respiration ceased. 37. The conclusion, then, is this: Chloroform has no power of increasing the tendency to either shock or syn- cope during operations. If shock or syncope from any cause does occur, it prevents, rather than aggravates, the dangers of chloroform inhalation. 38. The experiments on dogs that had been dosed with phosphorus for a few days previously, show that the fatty, and consequently feeble, condition of the heart and other organs so produced has no effect in modifying the action of chloroform. The ease with which vagus irritation and the Glasgow trace could be produced in these animals, by even slight degrees of asphyxia, was very remarkable ; but this was equally the case in dogs that had been given phosphorus only a few hours before the experiment, and whose organs were not yet fatty. Many of these cases were in the last stage of phosphorus poisoning, and several of their companions died, without any experiment having been performed upon them, before or on the same day as they died (ride the low state of blood pressure in Experiment 163). Numerous at- tempts were made in these animals to produce shock by operations in the recumbent and vertical positions, but without any more result than in those that were healthy. 39. The truth about the fatty heart appears to be that chloroform per se in no way endangers such a heart, but, on the contrary, by lowering the blood pressure, lessens the work that the heart has to perform, which is a posi- tive advantage. But the mere inhalation of chloroform is only a part of the process of the administration in practice. A patient with an extremely fatty heart may die from the mere exertion of getting upon the operation- table, just as he may die in mounting the steps in front of his own hall-door, or from the fright at the mere idea of having chloroform, or of undergoing an operation, or during his involuntary struggles. Such patients must in- evitably die occasionally during chloroform administra- tion, and would do so even were attar of roses or any other harmless vapor substituted for chloroform. 40. The effect of hemorrhage was tested by opening the femoral artery and allowing a considerable quantity of blood (eight to twelve ounces) to escape. An imme- diate lowering of the blood pressure results, and this is very slowly recovered from. Such an accident, however dangerous it may be in itself, in no way affects the action of chloroform, except in so far that a patient who has been nearly bled to death would require less chloroform in his system to put him into a state of anaesthesia. The low condition of his blood pressure produced by the hem- orrhage would tend to prevent the too rapid intake of chloroform, exactly as in the case of cutting the splanch- nics (ride supra, subparagraph 36). 41. When the hind feet are lowered on to the floor so as to place the animal in the vertical position, a consider- able fall of blood-pressure in the carotid artery occurs ; but when the animal is replaced on the table in the recumbent position the pressure is fully restored. Vari- ous operations were performed on animals in the vertical position, but in no case was anything resembling danger- ous shock produced. Inversion of the body, so that the animal stands on its head, has exactly the opposite effect, the pressure rising in the carotid artery, and again falling to its former state when the animal is replaced in the horizontal position. Inversion of the body failed to restore an animal that was in the last stage of chloroform poisoning, though it raised the pressure in the usual way as long as it was continued. The change in the pressure of the blood of the carotid, which occurs when the posi- tion of the body is changed, appears therefore to be due simply to the effect of gravity. 42. As regards the effect of chloroform upon different animals, it may be said to be the same as far as its anaes- thetic action is concerned. There are certain peculiarities in its effect on respiration and circulation, connected with its local irritant action on the nostrils and fauces, which are interesting to notice. Thus, when concentrated chloroform vapor is applied to the nostrils of rabbits, they hold their breath, and the heart's action is slowed at once. This is always said to be due to reflex inhibition of the heart from irritation of the nasal branches of the trigeminus reflected through the vagus, and is by no means peculiar to chloroform, but is produced equally by any irritant vapor, such as ammonia or acetic acid. 43. In some dogs, and especially in those to which phosphorus had been given, stoppage of the respiration and slowing of the heart occurred immediately after the application of the chloroform to the face, or on forcibly pulling out the tongue, and this suggests that the mech- anism of the cardiac arrest in them is precisely the same as it is in the rabbit. On the other hand, in rabbits, as in all other animals, it is possible to give chloroform so gently that no spasm of the chest occurs, no reflex effect is produced; and then the pressure falls in the same reg- ular curve, and with the same succession of phenomena (anaesthesia, cessation of the respiration, and lastly cessa- tion of the heart-beat) that was above described as typical of chloroform inhalation. 44. Goats have a great tendency to hold their breath while inhaling chloroform, and monkeys resemble dogs rather than rabbits, as when ammonia was held before a monkey's nose (Experiment 98) it did not cause immediate stoppage of the respiration and heart as it does in rabbits. 45. The experiments with ether show that it is impos- sible to produce efficient anaesthesia with this agent un- less some form of inhaler is used which thoroughly ex- cludes the air. If an ordinary cap containing a sponge saturated with ether is applied very closely to the face, 165 Chloroform. Chorditis Tuberowa. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. the animal generally holds its breath and struggles, and we at once get the fall of blood pressure and slowing of the heart that invariably occur under these circumstances. If the ether is continued in this way after the animal has recommenced breathing, a condition of semi-anaesthesia results in which the cornea is sometimes sensitive and sometimes insensitive, and the pressure rises and falls alternately to a slight amount and forms a wavy trace, which may be continued right around the drum without any particular change. As soon as the air is rigidly ex- cluded, the pressure commences to fall gradually, exactly in the same way as with chloroform, and with the same succession of phenomena, viz., first anaesthesia, then ces- sation of the respiration, then of the heart movements, and finally death. How far this is due to ether and how far to the results of asphyxia, it is impossible to say, but an exactly similar succession of events can be brought about by making the animal inhale carbonic acid gas alone. 46. If surgeons continue to be content with a condi- tion of semi-anaesthesia, it can no doubt be produced with perfect safety, though with discomfort, to the patient, by ether held rather closely to the mouth. Such a condition of imperfect anaesthesia would never be accepted by any surgeon accustomed to operate under chloroform. If more perfect anaesthesia is required, it can be procured by excluding the air more rigidly, but then there is ex- actly the same danger as in giving chloroform. How very suddenly and rapidly the pressure may fall and death en- sue, is well shown by Experiment 33. Ether injected into the jugular vein produces a fall of blood pressure and anaesthesia in the same way as chloroform does, but in all cases in which it was so injected large clots were found in the heart immediately after death. It is inter- esting to note that Claude Bernard seems to have formed a very similar opinion with regard to ether, as the fol- lowing quotations from his work, entitled " Lemonssur les Anesthesiques et sur l'Asphyxie," published in 1875, show. The first quotation (p. 50) is as follows : " Aussi, un certain nombre de chirurgiens proposerent-ils d'aban- donner le chloroforme pour revenir & I'ether, dont 1'usage paraissait moins a craindre. Aujourd'hui en- core, les chirurgiens de Lyon emploient preferablement I'ether. On croyait le chloroforme plus dangereux que I'ether parce qu'il etait plus actif ; mais, en realite, la frequence relative des accidents par le chloroforme tenait peut-etre tout simplement & ce que c'etait cet agent anes- thesique qu'on employait dans 1'immense majorite des cas. Plusieurs discussions out ete provoquees par les partisans de I'ether, surtout par les representants de 1'ecole de Lyon, et il a ete constate que I'ether, lui aussi, avail produit un certain nombre d'accidents mortels. Les deux agents anesthesiques usites peuvent done, 1'un comme l'autre, entrainer quelques risques de mort, et la chirurgie humaine a conserve presque partout le chloro- forme, dont Faction est plus rapide et plus complete." The second quotation, to be found on p. 101 of the same work, runs.: "Quant a I'ether et au chloroforme, leur action est & peu pres la meme au point de vue physiolo- gicpie, sauf une difference d'intensiteen faveur du chloro- forme, ce qui nous fera generalement employer ce der- nier corps de preference a I'ether." Beaumont Small. CHORDITIS TUBEROSA (Trachoma of the Vocal Bands). This peculiar laryngeal disorder, which is always associated with catarrhal inflammation of the entire larynx, is characterized by the formation of a small whitish nodule upon one or both of the vocal bands. It is of special interest to the laryngologist because it occurs almost entirely in public speakers, singers, and actors. It always produces some degree of impairment of the voice, and, as it is a lesion which it is difficult to eradicate, it is well to appreciate its existence and treat it intelligently. Not much has been written about it. Most authors have been satisfied with brief mention of this, condition as one of the manifestations of chronic catarrhal laryngitis. Pathology.-Titrck's 1 description of this lesion, to (SUPPLEMENT.) winch lie first gave the name "chorditis tuberosa," is the most comprehensive. Almost every author of recent years refers to Tiirck's article when writing of the pathology and etiology of this disease. Turek had noticed four cases of this peculiar inflammation of the vocal bands in singers, and he gives this description of the appearance of the larynx : " Midway in the upper plane of the bands there is a peculiar uneven surface, and, in addition to redness and swelling, some white opaque spots as large as poppy-seeds." These white spots, he says, become more noticeable as the general congestion subsides. He believes this peculiar lesion to be due to inflammation of the mucous glands. Von Ziemssen,2 speaking of the pathological changes of the vocal bands occurring in very protracted cases of chronic catarrhal laryngitis, says : " There is sometimes a roughness of the surface, which seems to be due to a partial dermoid metamorphosis of the mucous membrane - a condition called chorditis tuberosa by Thick." Wedl,3 who examined specimens from a number of trachomatous vocal bands, found only connective-tissue hypertrophy with heaps of nuclei. Bosworth4 says : ''The pathological lesion is probably somewhat analo- gous to pachydermia, with the addition of a certain amount of connective - tissue hypertrophy ; " and Sir Morell Mackenzie,5 in a very brief description, says: ''The lesion appears to consist in a hypertrophy of the connective tissue and a proliferation of its nuclei." It is somewhat- difficult to determine whether Vir- chow 6 is not describing the same pathological condition in his article on "Pachydermia of the Larynx." Cer- tainly the appearances of the vocal bands in the earliest stages of pachydermia, as Virchow describes them, are quite similar to the nodules of chorditis tuberosa. Later, the infiltration and swelling are much greater in what he designates pachydermia than we see in chorditis tube- rosa. He says the swelling is at first localized in the middle of the vocal bands. There are raised points with tissue-thickening about them, the raised points being the swelling of the squamous epithelium and the papillae. This condition he believes to be due to long-continued congestion-a hyperplastic process, not an irritative one. He thinks it cannot consistently be called a chronic catarrh of the larynx, as there are neither mucus nor pus-corpuscles. INe believe that the essential pathological change in pachydermia laryngis is in kind like that found in tra- choma of the vocal bands, but carried much farther from the normal condi- tion ; - pachydermia, as Virchow says, " occur- ring in aged drinkers, and caused by shouting." In an illustration of an ex- treme case furnished by Ingals,7 in his article on " Trachoma of the Vocal Chords" (Fig. 68), we see a condition very sim- ilar to Virchow's pachy- dermia laryngis, and a much more advanced stage of disease than we have ever witnessed in chorditis tuberosa. We think mild cases of pachydermia may closely simulate extreme cases of tra- choma, but the thickening extending both above and below the vocal bands, and forming polypoid enlarge- ments, as Virchow pictures the later lesions of pachy- dermia, are not seen in chordhis tuberosa. The writer has had sections from two nodules which were removed from the vocal bands of different patients examined, and the result was the same in both instances: both specimens showed the result of simple inflammatory changes in the hypertrophy and increased number of the small round cells and connective-tissue corpuscles. It is es- sentially a hyperplastic process due to long-continued irritation and congestion of a moderate grade. Etiology.-While it is undoubtedly true that a chronic catarrhal laryngitis is a predisposing factor in the causa- Fig. 68. 166 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Chloroform. Chorditis Tuberosa. tion of these peculiar nodular formations of the vocal bands, yet the exciting causes to be mentioned have a much more important bearing. The description of chor- ditis tuberosa should not be buried in a general article on catarrhal laryngitis, as it deserves separate treatment, by reason of its special etiology. The amount of the gene- ral catarrhal inflammation in these cases is not excessive, while the pathological changes of the vocal bands are out of proportion to the general catarrh. The essential exciting cause of chorditis tuberosa is excessive use of the voice, and the lesion usually appears in singers. During the last two years I have seen eight cases of chorditis tuberosa. Six of these cases were in singers; the remaining two cases were in people who used their voices more than in ordinary conversation, one a Hebrew, who read aloud some religious ceremony every week, and the other a foreman of a large number of laborers, who was in the habit of shouting to his men. The six singers were all women and sopranos. It would be interesting to know if any cases of chorditis tuberosa have been seen in people who do not use the voice except in ordinary conversation. I have never seen such a case. This may be explained by the fact that probably none but singers, actors, public speakers, etc., go to a physician on account of the moderate hoarseness which the nodule on the vocal band produces. It is my belief, however, that this nodule is produced by excessive use of the voice in singing and public speaking, and that it is also largely attributable to a faulty method of singing or an improper manner of using the voice. It is a significant fact that six of the eight cases observed were singers and sopranos, conditions, as we know, requiring the highest tension and the most rapid vibration of the vocal bands. In writing the histories of these six cases, some attention was paid to the manner in which the voice had been trained, and it seemed to me significant that two of the patients were in the same class at a grand conser- vatory of music where only the "true Italian method was taught." During vocalization in both of these cases, as the scale was ascended the epiglottis w'as carried far- ther downward and backward with each note and the larynx was compressed more and more. One of these women could sing only a short time without becoming quite hoarse. After changing her teacher and using her voice in a different manner, she was able to sing at a theatre every night, although there is still some nodular enlargement on one of the bands. One of the patients-an operatic singer of great repu- tation-stated the pathology of the condition known as "chorditis tuberosa" quite accurately when she said, after the laryngoscopic appearances had been described to her, " Why, I should say I had corns on my vocal bands "-the " dermoid metamorphosis" of Von Ziems- sen. These nodular enlargements are produced by the rapid vibrations of the vocal bands, weakened by catarrhal in- flammation and over-use. After the chords become con- gested and thickened the friction of one band against the other is probably a contributing factor, just as the outer layers of the skin of the foot become hypertrophied by the friction of an ill-fitting shoe. This is especially true when the tension of the chords is unevenly controlled. While some congestion of the vocal bands, incident to the general catarrh, precedes the nodular swellings, the larger portion and the general thickening of the bands follow the formation of the nodules on the chords and are caused by the nodular enlargement. The nodular swellings are therefore in a sense primary, and the other changes in the bands secondary. The irritation caused by the constant friction of the nodular enlargement with the opposite band, and the ex- tra exertion necessary to produce a true tone in singing or a clear voice in speaking-these cause congestion with hyperplastic changes, and eventually an exhaustion of the adductors and tensors of the bands. Symptomatology.-The nodular enlargements may be situated upon one or both bands. In five of the eight cases I have seen, the nodule was on the left band. It is usually located a trifle more anteriorly than midway be- tween the vocal processes and the anterior insertions of the vocal bands, and it may be on the upper surface of the chord or upon its free margin. Fig. 69. A nodular enlargement of one band, if the voice is persistently used in singing or public speaking, will in time produce some alteration in the tissue of the other band at the point of contact. Sometimes there is an ap- pearance of depression in the second vocal band just op- posite the nodule. Fig. 70. If this depression is examined carefully, the mucous covering will present a roughened appearance, a callous spot which has been produced by the protruding point on the opposite band. This callous depression is really raised above the normal surface of the vocal band ; but a concavity exists because the edges about the depression are elevated to a still greater degree. After the nodule has existed for some time the depression on the second band is sometimes filled, and later gives place to a second nodule. Two nodules are now seen striking against each other, and the bands are just so much more prevented from approximating during phonation. If these nodules are not removed, and if the person is allowed to continue singing, the irritative friction and the increased effort of the intrinsic laryngeal muscles necessary to bring the bands together cause congestion and thickening of the entire substance of the bands. If a very careful examina- tion of one of the nodules is made in its earliest stages, the mucous membrane covering it will seem to be un- altered, and the millet-like nodule seem to be wholly situated in the substance of the band. It requires strong illumination to correctly appreciate the exact amount of congestion and swelling of the vocal bands. The nod- ules in this disease are, when first formed, pearly white, but later become a dirty gray. The color of the nodule, however, depends much upon the color of the adjacent vocal bands. When the entire band is congested and thickened, the nodule can be seen with difficulty ; when the congestion of the band disappears, the nodule stands 167 Chorditis Tuberosa, Club-Foot. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. out prominently. With poor illumination the vocal bands will seem to be nearly normal; a better light will reveal enlarged capillaries, running over the surface, and in the substance of the vocal bands, which in color vary from a gray to a pale red. The location of the nodule may always be easily discovered, because the secretions stick to this part of the chord, and when the chords sepa- rate during inspiration, a thread of mucus may be seen, stretching across from the nodule on one chord to the point of contact on the opposite chord. The degree of approximation of the bands depends upon the size of the nodule and upon the strength of the adductors of the vocal chords. The size of the interval between the chords varies from day to day, because the nodule changes in size rapidly without apparent cause (Fig. 71). 1 have seen a nodule develop in forty-eight hours, on .4.. a vocal band long af- - fected, because of over- (SUPPLEMENT.) pharyngitis sicca bears a specially close and injurious re- lation to a trachomatous vocal band, and every effort should be made to keep the pharynx moist while treating the larynx. The local remedies are not many which are of use in the judicious treatment of chorditis tuberosa. The nodule must be eradicated first of all. Time can be saved, in rare instances where the nodule is large enough, by snip- ping it off to the plane of the free edge of the band. I have twice used successfully a small, circular, snap, guil- lotine-knife, the circle about a quarter of an inch in di- ameter. With the aid of cocaine this circle can be placed around the nodule and the band pressed toward the lateral wall of the larynx before the knife is sprung. This instrument can be used more delicately than a laryngeal forceps, and with less damage to the bands. After the nodule has been cut off, a solution of zinc chloride or of silver ni- trate, from thirty to sixty grains to the ounce, may be Fig. 72. applied to its base. The forceps may be used to eradicate the nodule, but there is danger of injuring the bands, and the nodule is usually too small. Labus,8 of Milan, recommends flaying the vocal bands with forceps or curette; not a useful expedient, we should think. The operator must rely upon strong astringent or caustic solutions. The solutions of silver and zinc, of the strength mentioned above, are the most reliable. A four percent, solution of cocaine, sprayed into the larynx, will enable the operator to apply the solution to the nodule alone, without touching the remainder of the band. Slight in- flammatory action follows this application, which disap- pears in forty-eight hours. This should be remembered when treating a patient who is obliged to sing at the earliest possible moment. Mackenzie recommends ap- plications of ferri perchlor., 3 ij. ad 5 j- Chromic acid crystals may be applied to the nodule by means of some form of the guarded or concealed laryngeal applicator. This application should not, of course, be made until the movements of the larynx are controlled by cocaine. A week or ten days must elapse before the larynx recovers from this application. A fine-pointed galvano-cautery electrode, exposed not more than one-eighth of an inch, could, in skilful hands, be applied to the nodule as easily as the acids. After the nodule has been nearly eradicated, its return may be pre- vented by weak astringent solutions sprayed into the larynx, such as solut. argent, nit,, gr. v. ad | j. ; zinc chlorid., gr. x. ad 3 j. A very weak solution of cocaine (one per cent.) may be with benefit sprayed into the throat just before the astringent sprays are used. When the entire substance of the band is congested and thickened, absorption can sometimes be effected with a solution of iodol or iodoform in ether ( 3 j. to § j.). I have found that oily sprays are of little value and apt to be drying. It has been mentioned that the adductors and tensors of the vocal bands become fatigued by persistent singing in patients who have trachomatous bands, as much more than the usual muscular strength is required to bring the bands together, on account of the interposing nodule ; hence, after the nodule has been removed, the galvanic or faradic current should be employed. I prefer the faradic ; the two electrodes may be placed one on each side of the thyroid cartilage, or one pole may be applied to the arytenoid cartilages. The benefit seems to be about as great when the poles are applied externally. Dr. Gautier's method of applying the galvanic current, called "interstitial electrolysis," might be useful in re- moving the nodules. He applies a copper electrode posi- tive pole, insulated up to near its tip, to the growth, the negative sponge electrode to the back or chest ; a weak current is used-from five milliamperes up. The action of absorption is based upon the fact that oxychloride of Fig. 71. singing during a single evening. The chords approach each other more closely in front of the nodule than be- hind it. The failure of the bands to meet each other throughout their entire length occasions " phonatory leakage," and impairment of voice, w'hich is about the only symptom of this affection. The degree of hoarseness will depend, not only upon the size of the interposing nodule and the amount of secondary inflammatory changes in the vocal bands, but also upon the skill with which the vocal apparatus is em- ployed. We all know how well some singers vocalize with greatly altered vocal bands. Diagnosis.-The single pearly nodule, as large as a pin's head, will be, in the early stages, easily diagnosed from other lesions of the vocal bands. When the bands become congested and thickened, a little more care will be required, but the diagnosis is never difficult. " Chorditis tuberosa " should not be confounded with the uneven surface of the vocal bands seen in long- standing cases of simple chronic chorditis, where the vocal apparatus has been abused for many years, and strong astringents or caustics have been so frequently applied to the larynx that little normal mucous membrane remains. Chorditis tuberosa should be differentiated from the cicatrices following tubercular and syphilitic ulcerations, or from granulation tissue springing from the base of ulcers, and also from benignant growths at- tached to the vocal bands. Treatment.-In no laryngeal disorder must the treatment be more painstaking. Skilful manipulation will be required to eradicate it. These cases should be treated as early as possible before the second band has been injured by the protruding nodule on its fellow, and before the bands have become congested, thickened, and stiffened, and the vocal tensors exhausted beyond recov- ery. They should not be allowed to sing or to use their voices except in quiet conversation. The voice should be rested, not only until the nodular enlargement has dis- appeared, but until congestion has abated and the muscu- lar tone of the larynx has been restored. It is hardly necessary to say that the nose and pharynx should be put in good condition. Colds in the head and inflammation about the pharynx always aggravate this condition of the vocal bands. The condition known as 168 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES, (SUPPLEMENT.) Cliorditls Tuberosa Club-Foot. copper is formed at the positive pole, which permeates and causes absorption of the growth. The author says the ac- tion produces no burning or destruction of tissue, since the energy of the current is expended in forming the copper salt. Finally, after the bands have been made as nearly nor- mal as possible, we should insist that our patient, if he is a singer, put himself under the instruction of a proper teacher. This advice is imperative if we would cure this class of patients. A faulty method of using the voice will bring back in a short time the catarrhal conditions and the nodular enlargement. The points I would place emphasis upon are these: 1. That while chorditis tuberosa is in a sense one of the manifestations of a chronic catarrhal laryngitis, yet its real cause is excessive use of the voice. 2. That the nodule on the band is largely the primary lesion, while the other changes in the bands are sec- ondary. 3. That this condition is almost always found in sing- ers or public speakers, and is occasioned to a great degree by a faulty method of using the voice. 4. That chorditis tuberosa occurs more frequently in women than in men, and is seen most often in sopranos. 5. That a nodular enlargement will in time produce change in the second band at the point of contact; and, 6. That these nodules should -be removed as early as possible. Singing should not be allowed until the fiands are normal, and faulty methods of using the voice should be corrected by proper teaching. Clarence C. Rice. 1 Tiirck : Klinik der Krankhciten des Kehlkopfes, Wien, 18(i6, pp. 164 and 204. 2 Von Ziemssen, vol. iv.. p. 217. 2 W*dl: Idem. 4 Bosworth: Diseases of the Nose and Throat, vol. ii., p. 534. 5 Mackenzie : Diseases of the Throat and Nose, vol. i., p. 294. 9 Virchow : Verhandlung der Berlin. Med. Gesellschaft, reported in Berliner klin. Wochensehrift, 1883, No. 21, 7 Ingals : Diseases of Chest and Throat, etc., p. 402. 8 Labus, Archives of Laryngology, 1880. CHROMIC ACID. A new use of this escharotic was brought to the notice of the profession by Dr. Edward Woakes, in The Lancet, June 21, 1890. He there advo- cates its use in the treatment of cystic goitre, ranula, and other cysts. The cyst or sinus is to be opened and thoroughly evacuated and washed, and all haemorrhage checked ; a saturated solution of the acid is then applied to the secreting surface with a chromic-acid carrier, and the patient kept at rest for a few days. No severe re- action occurs and the cavity is rapidly obliterated. Re- peated applications may in some instances be required, four or five days elapsing between each. It is recom- mended to apply this method of treatment to all sinuses and cavities with a secreting wall. There does not seem to be any danger of absorption of the drug, as it coagu- lates the albumin of the tissues and forms a thick, dense membrane. Dr. Woakes says "repeated observation points to a complete and rapid amalgamation between the tissues and acid to such an extent that thereafter neither the one nor the other retains its former character." All haemorrhage should be carefully checked, as it neu- tralizes the acid and prevents its action on the cyst-walls. This acid has also been selected to destroy the false membrane in diphtheria. A forty per cent, solution is used and the membrane touched two or three times a day by means of a pencil. The applications are to be made with the greatest care, to avoid injuring the mucous membrane. It does not produce any inflammatory action and is painless. The false membrane alone is destroyed and the production of the toxic ptomaines arrested. In addition antiseptic spraying and constitutional treatment tire also adopted. Beaumont Small. CINNAMIC ACID. This acid is one of the numerous drugs introduced on account of its reputed value in the treatment of tuberculosis. It is produced by the oxida- tion 6f oil of cinnamon in air or oxygen ; it also exists ready-formed in balsams of tolu and Peru, and in storax. It may be obtained by the following process : Old, hard balsam of tolu is reduced to powder and mixed with an equal weight of slacked lime ; this mixture is boiled for some time in a large quantity of water, and filtered while hot. On cooling calcium cinnamate crystallizes. This is redissolved in hot water, digested with charcoal, and fil- tered and allowed to cool. The crystals are again dis- solved in hot water, and an excess of hydrochloric acid being added, it is again allowed to cool, when cinnamic acid separates in a pure state. It resembles benzoic acid and possesses many of its properties. It forms small white plates or needle-shaped crystals of perfect whiteness, without odor. It is insoluble in cold water ; soluble in hot water, alcohol, and ether. Cinnamic acid has antiseptic properties similar to salicylic and benzoic acids, and has been used to make antiseptic dressings of gauze, jute, etc. Its use in tuberculosis has been recommended by Dr. A. Landerer, of Leipsic. For pulmonary phthisis it is employed only by intra- venous injections, the object being to bring the acid in direct contact with the diseased pulmonary tissue. A five per cent, emulsion of the acid is prepared, and from one and one-half to fifteen minims injected twice a week. The veins of the arm are selected. The part is rendered aseptic and the vessels distended by means of gentle pressure. After the injection the part is dressed with sublimate gauze and the pressure removed. No bleeding or inflammation follows the puncture. No im- mediate effects are produced by this medication, but in the course of a few weeks the sputum changes its color and loses its purulent character, the cough lessens, night- sweats cease, all disagreeable symptoms lessen, and the general health improves. It is advised to continue the treatment for at least three months. In surgical tuberculosis the acid is injected into the diseased tissue. The injections are made deeply into the part, seven and one-half minims being used twice a week. In fistulous disease, injections of a five per cent, alcoholic solution were used. In lupus vulgaris each tubercle is to be injected with one or two drops of the solution. After the injections there appears redness and tume- faction, which subside in two or three days ; the nodules gradually disappear and approach the normal skin in composition. The pain of the injection may be overcome by combining five per cent, of cocaine with the alcoholic solution. Dr. Landerer reports very favorable results from this treatment, but others have not as yet adopted its use. Beaumont Small. CLUB-FOOT. From time to time cases have been re- ported to both prove and disprove each of the theories previously advanced as to the etiology of congenital club- foot, but no new facts have been added to our stock of knowledge. Treatment.-The treatment consists in correcting the deformity, and maintaining the corrected position until there is no longer a tendency to relapse. The treatment is commenced at the earliest possible moment, and the retentive treatment may have to be continued for years. Simpler means are always to be tried before the more radical operations are attempted, but the tendency of the profession is very decidedly in favor of rapidly correcting the deformity in place of gradual and prolonged stretching by complicated me- chanical devices. Of the braces used for gradually correcting the de- formity by a leverage, or stretching process, none are more simple, and yet effective, than those for many years employed by Dr. Charles Fayette Taylor (Figs. 73 to 76). The sole-piece is of sheet steel, the upright a steel bar joined to the sole-piece by a strong rivet, allowing antero- posterior motion ; the extent to which the toe is allowed to drop is regulated by a set screw. Sufficient straps are attached to retain the foot, and these are usually at the places shown in the illustrations. The cuts illustrate the manner of applying the adhesive plaster and adjusting the brace. It will be noted that the upright piece can be bent to exert any desired degree of leverage. This splint will be found of great service as a retention walk- 169 Club-Foot. Club-Foot. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. ing apparatus after forcible correction or operative pro- cedures. Forcible correction is accomplished by the hand in moderately severe cases in young infants, and by wrench- ing and crushing with various machines. The simplest (SUPPLEMENT.) other hand, subcutaneous incisions to which no thought of asepsis has been paid beyond ordinary cleanliness rarely become infected ; it is the universal rule that they heal without suppuration, while open in- cisions rarely escape infection unless treated with the most careful aseptic precautions at the time of the oper- ation and at subsequent dressings, should such be necessary. Strict asep- sis demands no little personal care as to the preparation of dressings in private practice, and, in the dressing of these wounds of the feet, demands at least one trusty assistant. Strict asepsis, it must be admitted, is not possible for verv manv Fig. 73. Fig. 74. Fig. 78.-The Thomas Wrench applied to a Case of Talipes Equino-varus. * men who are called upon to treat deformed feet. I would not be understood as saying that in the hands of such the subcutaneous operation is the safer, for it is not, but it is reasonably safe, and if suc- cessfully performed will result in healing within three or four days as against as many weeks if the wound must heal by gran- ulation. Thomas'* Method. - This method of stretching the foot into a corrected position dif- fers from all other stretch- ing methods for the cure of congenital varus. It takes a middle place be- tween stretching by braces, which on the one hand exert "continuous Fig. 75. Fig. 76. Figs. 73 to 76.-The Taylor Club-foot Brace. effective machine is the Thomas wrench, Fig. 77. It may be used as the primary procedure, or as secondary to operation. When used as supplementary to a cutting operation the patient is anaesthetized, and the attempt is made to fully correct the deformity at a single sitting. One of the most powerful devices for forcible correction is Dr. Phelps's machine, Figs. 84 and 85. This machine Dr. Phelps uses only when the patient is anaesthetized, and generally, if not always, as a supplementary proced- ure to a cutting operation. Forcible correction by machine should not be attempted in cases where correction can be accomplished by the hand. It may be employed with equal advantage after Fig. 79. - The Deformity Partially Corrected by the Wrench. Fig. 77.-The Thomas Wrench. leverage," or " elastic traction," or " the weight of the body as a corrective force," and the ma- chines which forcibly correct the deformity under an anaesthetic at a single sitting, on the other hand. By the wrench shown in Fig. 77, and applied in Figs. 78, 79, and 80, the foot is stretched, or "wrenched," or sprained to a degree just sufficient to abolish the resiliency of the shortened tissues. The foot is then retained in a simple metal brace (Figs. 81 and 82) until at the end of from two to six days the resiliency be- subcutaneous and open incisions of the soft parts, and I after the cutting operations upon the bones. The choice between subcutaneous and open incisions for the division of the soft parts depends upon the skill | of the operator, the severity of the deformity, and the I care with which strict asepsis can be carried out. It surely requires more manipulative skill to thoroughly divide all of the shortened parts subcutaneously than 1 openly, and in some cases a satisfactory subcutaneous division cannot be accomplished. In old and severe de- [ formities much time is often wasted in futile subcutane- ous operations. An open wound is certainly a safer wound than a subcutaneous one when infected. On the i Fig. 80.-The Deformity Fully Corrected by the Wrench. 170 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Club-Foot. Club-Foot. gins to return and the foot tends once more to assume its old position ; then the wrenching is repeated. These wrenchings are repeated every few days, the intervals becoming longer as the foot comes into a better position, until the deformity has been fully corrected, and shows no tendency to relapse. Tenotomy.-In doing subcuta- neous division of the shortened soft parts, surgeons for the most part proceed as follows : For the ordinary form of con- genital talipes equino-varus the tendo Achillis is first divided about an inch and a half above the point of its insertion. The patient lies on his face, the as- sistant puts the tendon on the stretch by flexing the foot, the skin is drawn somewhat to one side, and with a pointed teno- tome a puncture is made at the side of the tendon, nassins- be- neath it. With this same knife, or with a blunt pointed one in its place, the tendon is then divided by turning the edge of the knife toward the tendon, and moving it with a gently sawing motion. As soon as the assistant feels the snap of the divided tendon, he should instantly relax the flexion. When the cavity left by the incision has filled with blood, the operator attempts full flexion of the foot. In a certain number of cases this will not be found pos- sible, and the choice then is between a section or a forc- ible rupture of the posterior ligament of the ankle-joint. Section of this ligament is accomplished by a spear- shaped tenotome passed through the middle of the tendo Achillis, then turned half around and swept from side to side. Most surgeons, however, prefer to rupture the ligament by the hand, the wrench, or some other mechanical device. Unless full flexion at the ankle joint be made possible before the anterior portion of the foot is subjected-to operation, it will be found very difficult of accom- plishment. The next step is a division of as much of the deltoid ligament as may be neces- sary, and such other short- ened tendons as may be reached by the knife through the same incision. The foot being put on the stretch in the direction of outward rotation, a sharp, point- ed tenotome is entered flat close to the anterior border of the inner malleolus with its back next the bone, and carried around under the tip of the malleolus. It is then removed and replaced with a blunt knife, preferably convex on the edge; the edge is turned toward the ligament, and as much of it divided as may be necessary. Through the same opening the tendon of the posterior tibial, and the anterior tibial, and astragalo-scaphoid capsule may be divided. By passing the tenotome some what deeper and close to the bone, the tendon of the long flexor of the toes may be divided. The tendon of the extensor of the great toe stands out prominently over the metatarso-phalangeal articulation, and here it is (SUPPLEMENT.) divided from within, outward, when required. The ab- ductor of the great toe and the plantar fascia are divided just in front of the inner tuberosity of the os calcis. When all resisting bands that can be made out to the touch have been divided the foot should be forcibly overcorrected by the hand, or the wrench, or some other mechanical device, and should be retained permanently in that position. Strict asepsis should be practiced in these tenotomies, and the wounds sealed with collodion and a small bit of gauze. No permanent pressure should be made to check bleeding. If the bleeding is sufficient to demand pressure, a free incision should be made and the bleeding vessel liga- tured. Pressure diminishes the quan- tity of plastic effusion, and may be the cause of a weak union between the divided ends of the tendons. Dressed without pressure, perfect union may always be confidently ex- pected, no matter how far the cut ends may be separated. The method, formerly in gen- eral use, of leaving the foot in its deformed position for a few days until soft union between the divided ends of the tendons had taken place, and then grad- ually stretching this new mate- rial, may be held responsible for many cases of weak union, and even of non-union. Phelps's Operation.-This consists in making an open incision commencing in front of the inner malleolus, and extending one-third the distance across the sole of the foot, and carried down to the neck of the astragalus, on its inner side. (Fig. 83.) Through this wound, the ad- ductor pollicis, tibialis posticus, the plantar fascia, the flexor brevis, the long flexor tendons of the toe, and the deltoid ligament, all its branches, if necessary, can be cut. This is done after subcutaneous tenotomy of the tendo Achillis has been performed. Great force is then used by the machine shown in Figs. 84 and 85, to rupt- ure the deep ligaments and super-correct the foot. Fig. 81.-The Thomas Retention Club-foot Brace. A. the foot- plate. curled up at the inner side ; B, the leg-plate; C, D, E, the main stem ; F, hori- zontal section of leg-plate and main stem, show- ing the plate extending farther to the inner side of the stem than to the outer. Fig. 83.-The solid line indi- cates the incision in Phelps's operation. Any case that can be corrected by the hand, or by subcutaneous ten- otomy, should not be sub- jected to Phelps's opera- tion ; and when the oper- ation as described fails to easily supercorreci me root, a linear osteotomy should be made through the neck of the astragalus. If this fails, a V-shaped piece should be removed from the os calsis, the point of the V meeting the linear osteotomy of the astragalus. This failing, the removal of the cuboid and scaphoid is indicated. And, as a last resort, Pirogoff's amputation should be resorted to. Fig. 82.-The Thomas Club-foot Brace applied. Fig. 84.-Phelps's Machine adjusted. 171 Club-Foot, Club-Foot. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. The wounds of Phelps's operation are sutured or not, as may be possible, and dressed without drainage, with the aim to obtain blood-clot organization. The feet are dressed in the super-corrected position, in plaster -of- Paris. Phelps first operated in 1879, and to him more than to any other is due the credit of leading the way to perfect results in inveterate cases of club-foot. Ridlon's Operation.-This is a modification of Phelps's operation, designed to avoid a tender scar on the sole of the foot. In Phelps's earlier operations, the incision was (SUPPLEMENT.) underneath the bones, closely hugging them. As these in- cisions are made, an assistant constantly keeps the parts on the stretch in the direction of correction of the de- formity, and each part as it appears to resist the correct- ing influence is divided. When any considerable degree of equinus is present, the first incision passes beneath the Fig. 85.-Phelps's Machine in Use. carried two-thirds across the sole of the foot; at present it is carried but one-third that distance, and the objection to a tender scar holds less well than before the modified operation was devised. The operation which bears the writer's name consists of an incision commencing on the dorsum of the foot just in front of the inner malleolus, at the point where the ten- don of the extensor longus digitorum muscle crosses to the inner side of the foot; from here it is carried directly anterior half of the inner malleolus, and in some cases be- neath the whole of it. The deltoid ligament, and the tendons of the tibialis anticus, extensor proprius hallucis, extensor longus digitorum, extensor brevis digitorum, tibialis posticus, flexor longus digitorum, and flexor longus hallucis, are readily reached. From the second Fig. 86-Ridlon's Operation ; Lines of Incisions. Fig. 87.-A. Plaster of-Paris imprint from a boy of eleven, after excision of the astragalus for resistant club-foot. B. Drawn from a photograph of a boy of eleven, after osteotomy of the neck of the astragalus for club-foot. (Bradford.) toward the sole, to meet near its middle a second incis- ion made parallel with the sole from near the inner tub- erosity of the os calcis to the middle of the first metatar- sal bone, or beyond (Fig. 86). The plane of the first incision leads directly downwards to the bones ; the plane of the second incision slopes upwards and outwards to reach the bones at their nearest border; thence it is carried incision the abductor hallucis, the plantar fascia, and any other resisting structure maybe divided. By carrying the second incision in the plane directed, it will almost always be possible to avoid dividing the internal plantar artery and the nerve. The division of all tight bands having been made, the foot is overcorrected by the hand 172 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Club-Foot. Club-Foot. or by the wrench. As in Phelps's method, we believe it better to divide the tendo Achillis and correct the equinus, rupturing, if necessary, the posterior ligament of the ankle-joint, before commencing the operation for correcting the deformity of the anterior portion of the foot. The dressings are the same as in the Phelps's operation, namely, suturing, in so far as possible without (SUPPLEMENT.) the deformity ; fourth, when this cannot be readily done, do a linear osteotomy of the neck of the astragalus, fol- lowed if necessary by cuneiform osteotomy of the os calcis ; if this is not sufficient, enucleate the astragalus, or remove any bone or portion of bone which blocks the way ; and if this is not sufficient, amputate. Dr. Bradford has recently pointed out that in some Fig. 88.-Sole imprint of a case of club-foot corrected by tenotomy with inversion of the foot without contraction. (Bradford.) Fig. 89.-Imprint of a normal foot. (Brad- ford.) Fig. 90.-Imprint of a foot of a child six years old, treated when one year old, for congenital club-foot. (Bradford.) putting the parts at too great tension, and covering the wound with Lister protective and aseptic dressings, with the expectation that healing by blood-clot organization will take place. Over all is applied a plaster-of-Paris dressing with the foot in the supercorrected position. In inveterate cases where the foot cannot be easily held in the supercorrected position, operations on the bones are indicated as pointed out under Phelps's operation. The principles, first clearly laid down, we believe by Phelps, must never be lost sight of : First, correct all cases possible by hand ; second, correct all possible by subcutaneous incision ; third, of the remaining cases, divide by an open incision all resisting soft parts, and with the hand or some mechanical device supercorrect cases there is elongation of the outer border of the os calcis and a consequent obliquity of the anterior (cuboid) articulating surface which can only be remedied by re- moving the wedge-shaped piece from its outer side just posterior to the cartilage. In the normal foot a line drawn antero-posteriorly through the centre of the heel and the centre of the front part of the foot meet to form a straight line (Fig. 87, B), while in the foot with a dis- torted os calcis, the lines meet to form an angle (Fig. 87, A). An imprint of a normal foot is seen in Fig. 89, and of a corrected club-foot in Fig. 90, while Fig. 88 shows a foot with a deformed os calcis which, after tenotomy, could readily be fully corrected, but which at once drops back into inversion because of the obliquity 91.-Imprint of a right foot before opera- tion. (Bradford.) Fig. 92.-Imprint of the same foot after opera- tion. Osteotomy of the neck of the astralugus and os calcis. (Bradford.) Fig. 93.-Judson's brace. 173 Club-Foot. Cocaine. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) of the calcaneo-cuboid articulation. In these cases where distortion of the os calcis is present, correction by force, by tenotomy, by open incision on the inner side of the foot, and even by enucleation of the astragalus, fails to permanently remove the inward twist of the anterior por- tion of the foot. Figs. 89 and 90 show the improvement which may be gained in inveterate cases. An imprint of the foot as shown in these illustrations will be found a most convenient guide and a valuable record. A sheet of paper is smoked over a piece of burn- ing camphor, and after an imprint has been made by the patient stepping upon it, it is rendered permanent by pouring over it a little photographer's varnish. The composition of the varnish is: Gum sandarach, oz. li ; alcohol, oz. 8 ; castor-oil, dr. 2. Mix. Whatever method be employed to correct or super- correct the deformity, it is but the first step in the treat- ment of the case. Suitable dressings must be employed to retain the foot in the corrected position until the slack has been taken up in the elongated tissues of the convex side, and until use has rendered supple the articular sur- faces in their new relations. After operative procedures, plaster-of-Paris forms the most convenient dressing until the wounds have healed ; after that the Taylor shoe is a simple, inexpensive, and satisfactory dressing. Valgus.-Pure valgus is an exceedingly rare deformity. In congenital cases the outward deformity is almost in- 2. The long weak foot seen in adolescence, which, though of little importance at the time, often becomes most confirmed and painful in later life. 3. Weak feet in older subjects, particularly women who have grown stout and are obliged to stand much of the time. 4. The most important cases, usually seen in young adults, where we find marked deformity and muscular Fig. 95.-A. The flat-foot. B. The overcorrected foot. spasm, so that the foot is quite rigid, and cannot be re- placed in normal position. 5. True flat-foot, or pes planus, which may be actually inherited or be the result of rachitis in infancy. The first and second class find relief in well-fitting shoes, the inner border of the soles of which have been built up from one-fourth to one-half inch, from the ball Fig. 94.-Judsons's brace applied. variably associated with a dropping of the heel-calcaneo- valgus ; in the non-congenital deformity the same condi- tion may be present, or there may be drawing up of the heel-equino-valgus. In the congenital deformity the foot can, as a ride, be readily replaced by hand, ami only requires a simple apparatus to retain it in that position. Occasionally, section of one or more tendons anteriorly is required. In equino-valgus, tenotomy of the tendo ' Achillis is indicated. Judson's brace, shown in Figs. 93 and 94, serves the best to retain the corrected foot in these outward deformities, as it also does in pure calcan- eus. The brace consists of a sheet-steel foot-piece with a flange running its full length, turned up on the side to which the deformity looks, and on the opposite side a flange from one-half to one inch in width, turned up opposite the heel, to form the heel-cup. To the first flange is riveted an upright piece of soft bar-steel which runs along the side of the leg to the garter-line, where a band encircles the leg. The brace is held in position by straps so placed as to retain the foot in its new position. Flat-Fool. The treatment of flat-foot, or acquired val- gus, has been greatly advanced by the work of Dr. Royal Whitman, of New York. He divides the cases clinically into five groups : 1. Cases known as weak ankles in weak or rachitic children, or accompanying slight knock-knee. Fig. 97. FlGS. 96 and 97.-Whitman's flat-foot brace. A, the part applied to the inner side of the foot; B, that applied to the outer side. of the foot to the tip of the heel, so that the weight is thrown to the outer side, and may be permanently cured by learning to walk properly, i.e., with their toes in front so that the inner borders of the feet are parallel, and not with toes turned out. To this treatment the third class should add hot foot- 174 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Club-Foot. Cocaine. baths, manipulations and rubbing, and in some cases Whit- man's brace may advantageously replace the tilted shoe. The fifth class requires no treatment unless pain is present. It is to the fourth class that Whitman's principles of treatment are especially applicable, and the class in which his brace finds its greatest usefulness. The procedure with it is as follows : The deformity is forcibly reduced and overcorrected. This is quite a different thing from remoulding the arch (Fig. 95). Under ether, the foot is grasped by the hands, or the hands and knees, or by the Thomas wrench, and bent and twisted inward until all restriction to normal motion is completely over- come. The foot is then placed in extreme adduction or equino-varus, and retained by a well-padded plas- ter bandage. In a week, or less if there be no pain in the foot, the band- ages are removed and a plaster cast taken for the support which is to be used. The plaster cast of the foot goes to the iron founder, who re- produces it in iron. Upon the iron cast is moulded, from thin sheet-steel while hot, the brace, in the form shown in the illustrations (Figs. 96, 97, 98) and afterwards it is tempered, nickeled, or tinned, and coated with Japan varnish. The brace is not a spring ; it is inelastic. It is worn inside, but not attached to the shoe. The shoe recommended is one of the Waukenphast pattern, with a sole, broad enough to support the foot, having an inward twist to al- low room for the great toe. In advanced cases the inner side is built up after the method of Thomas. Meantime the foot is manipulated daily to stretch the contracted and shortened tissues, until every part is free and supple. Voluntary exercises are also made use of to strengthen the weakened muscles. And lastly the patient is re-educated in the proper manner of walking and sup- porting weights (Fig. 99). The feet should be parallel as COCAINE. Since the appearance of this Handbook cocaine has maintained its place as a local anaesthetic, and has gained for itself quite an extensive field of use- fulness. It has been incorporated into the Pharmacopoeia of all countries. Since attention has been directed toward the anaesthetic properties of cocaine quite a num- ber of other bodies have become known that have lo- cal anaesthetizing effects, as for instance, erythrophleine, menthol, and other compounds, part of which belong to the groups of glycocides or resins. All these bodies have that in common, that they act as intense irritants upon the terminations of the sensitive nerves, and that after a longer or shorter period of irritation a period of paralysis (anaesthesia) follows, which is the case also with cocaine. In most of these drugs the primary irritation is very much stronger than in cocaine, a circumstance which did not permit their substitution for it. Some of the alleged rivals of cocaine have been disclosed as downright deceptions, as for instance stenocarpine (mixt- ure of cocaine and atropine). With the increased knowledge regarding the chemical constitution of cocaine (see under that heading), the time does not seem dis- tant when cocaine, or some body of similar constitution and physiological action, will be synthetically manufac- tured for practical use, as in fact has been done already in the laboratory. Mode of Manufacture and Statistics.-Great progress has been made in the manufacture of cocaine, which has led to a remarkable reduction of its cost, the market price at present (end of 1892) being $6 the ounce. The table below (for which the writer is in- debted to the courtesy of Messrs. McKesson & Robbins) shows the following decrease in price : Autumn of 1884 (abnormally high price).. .$3.00 per grain. End of 1884 50 " 1885 30 " End of 1885 05 " 1886 05 " 1887 7.50 per ounce. 1888 7.00 " 1889 6.00 " 1890 5.50 " 1891 8.00 " 1892,... 8.00 " End of 1892 6.00 " The former process was essentially the one used by Niemann, only somewhat modified. The alkaloid was extracted from the leaves by means of acidulated alcohol, much ether being used in the further steps of the pro- cess, as described in Vol. II., p. 217, of this Handbook. The main improvement consists in dispensing entirely with the alcohol and using ether in very moderate quan- tity only. Cocaine, like other alkaloids, is soluble in kerosene oil, while its salts are not soluble in it. If ground leaves are moistened with a five per cent, solution of sulphuric acid, percolated, and the percolate is agi- tated with kerosene and an excess of carbonate of sodium, the alkaloid is held in solution by the kerosene, compar- atively free from other matter. It can be washed out of the kerosene by means of acidulated water. For pur- poses of purifying it is precipitated again by carbonate, of sodium, then dissolved in ether, from which it is washed out by dilute hydrochloric acid as the hydro- chlorate salt. This process has also been improved upon by doing away with the extraction from the leaves by means of acidulated water. The ground coca leaves are moistened with a solution of carbonate of sodium, and the alkaloid directly extracted from them by perco- lating with kerosene. From this kerosene solution the alkaloid is washed out by means of weak sulphuric acid, and for purposes of purifying precipitated again by car- bonate of sodium in the presence of a small portion of kerosene to dissolve it again. This process of precipitat- ing and redissolving is repeated several times. At last the crystals of the crude alkaloid are dissolved in dilute acid and freed from kerosene by means of ether; then the alkaloid is precipitated again in the presence of ether, the clear ethereal solution (of the alkaloid hydrate) shaken out with hydrochloric acid, and the solution of the hy- Fig. 98. - Whitman's brace, as seen from below, when applied to the foot. Fig. 99.-A. Improper position of the feet in walking. B. Proper posi- tion of the feet in walking. Each step is a gymnastic exercise. to their inner borders, so that the weight will not be un- duly thrown to the inner side of the foot, as is the case when the toes are far apart; and by walking over the toes instead of over the inner side of the foot, each step be- comes a beneficial gymnastic exercise. John Ridlon. 175 Cocaine. Cocaine. BEFEBENCE HANDBOOK OF THE MEDICAL SCIENCES. drochlorate evaporated to dryness.* At first all co- caine made was extracted from the leaves in Europe and in this country. The coca-leaves have to be trans- ported a long way from the mountain range of Peru and Bolivia, on the backs of mules, and farther by railway to the Chilean and Peruvian ports. The combined in- fluences of heat and moisture to which the leaves were exposed during this transportation robbed them of part of the amount of the alkaloid they originally contained. This circumstance, and the considerable expense of transportation of the dead weight, have caused the man- ufacture of cocaine to be transferred to the source of supply in the Bolivian Mountains, where various manu- factories have been established to turn out the crude alkaloid. This is exported to Europe and to this coun- try in cakes of several inches in diameter and half an inch in thickness. It is then refined and converted into the hydrochlorate by the process described above. The present import duty, discriminating against the crude alkaloid (twenty-five per cent, ad valorem against fifty cents a pound on the salt), has hampered American man- ufacturers, so that almost all cocaine here consumed is imported from Germany, where it is manufactured partly from leaves, partly from the crude alkaloid. A small quantity is made here from leaves, of which 90,000 pounds are imported per annum. Cocaine salts are used in the United States to the amount of 100,000 ounces (3,125 kilogrammes) a year (estimate of Messrs. McKes- son & Bobbins; Dr. Squibb puts the figure at 1,800 kilogrammes, giving this as a crude computation based on the output of his own factory). The annual harvest of coca-leaves in South America is estimated to be 10,000,000 kilogrammes, of which about five per cent, is exported, either in the natural condition or in that of the crude alkaloid, extracted in the Peruvian manufactories. The variety best suited for the extraction of cocaine is the great-leaved species cultivated in Southern Peru (Huanuco, Huanta, Santa Anna), con- taining about 0.5 per cent, of the alkaloid. Bolivia fur- nishes not very considerable quantities of coca, as the price is fifty to eighty per cent, higher than for the Peruvian. The so-called Trujillo coca, from Northern Peru, is not well suited for the manufacture of cocaine, as it contains hardly half as much of this alkaloid as the Southern plant, but great quantities of other alkaloids, which make the isolation of cocaine very difficult. Experiments to raise coca elsewhere have been made in the Government of Madras, in the tea-plantations of Bengal, in the Island of Ceylon, on Mount Cafe, at San Thome in Africa, and in the cinchona plantations of Java. The latter ones gave the best results, and the coca exported from Java is very similar to Trujillo coca (Northern Peru) in aspect and in the amount of alkaloid contained. It contains 0.2 per cent, cocaine, besides a quantity of other alkaloids that hamper manu- facturing. (Information furnished by the firm of C. F. Boehringer u. Sohne, Mannheim, Germany.) Tests of Purity.-Madagan's test consists in dissolv- ing one grain hydrochlorate of cocaine in two ounces dis- tilled water and adding one to two drops of ammonia solution. If free from amorphous cocaine, on stirring the ammoniated solution a few seconds cocaine hydrate separates out in crystalline form and falls to the bottom, leaving the supernatant solution clear and free from opalescence. If at all milky, the presence of amorphous cocaine is indicated. (Copied from The [London] Chemist and Druggist, March 5, 1887, p. 297.) Permanganate Test (Garthier).-When a solution of two centigrammes to half a gramme of hydrochlorate of cocaine is mixed with one drop of a two per cent, solu- tion of permanganate of potash, the resulting fluid must assume a red color and remain transparent. On a subsequent addition, drop by drop, of the permanganate solution, there must appear a red precipitate consisting (SUPPLEMENT.) of permanganate of cocaine, which becomes brown only after heating and that without evolving an odor of bitter almonds. When the addition of one drop of the perman- ganate solution brings about a brown discoloration or brown precipitate, or when on heating the mixture there appears an odor of bitter almonds, the preparation is impure and unfit for use. (Copied from the London Med. Record, 1889.) Chemical Constitution.-Cocaine, if heated with hydrochloric acid splits into benzoic acid, methyl alcohol, and a new alkaloid, ecgonine (C9Hi6NO3), of' not well pronounced physiological action. Becent investigations have shed light on the manner in which these parts are ar- ranged in the cocaine molecule and on the constitution of ecgonine (Einhorn, Berichte der chem. Gesellschaft, xxi., p. 3029, 3441, vol. xxii.; Stoehr, ibid.). As was to be ex- pected, there is an intimate connection between the con- stitution of the cocaine molecule and its physiological action. There exist quite a series of bodies similarly constituted, with analogous physiological action, facts that have been studied by Ehrlich (Deutsche med. Woch- enschr., 1891, No. 32, p. 717) and E. Poulsson (" Bei- trage zur Kenntniss der pharmakologischen Gruppe des Cocain," Arch. f. expenmentelle Pathologic u. Pharmako- logie, vol. xxvii., p. 301). In ecgonine a group called Cocayle, (CH3)NC5H7, whose constitution is methyltetra- hydropyridine, is combined with the radical of oxypropi- onic acid, thus: Place for the benzoyl radical. Place for the methyl. Cocaylc (Methyltetrahydro- pyridine). Oxypropionic acid. Ecgonine. The side chain in this molecule (oxypropionic acid) con- tains a hydroxyl and a carboxyl, with either of which different radicals can unite. Whenever an alcohol radical is affixed to the car- boxyl group, and at the same time an acid radical enters the other replaceable hydroxyl group, the resulting body in chemical and physiological action closely resem- bles cocaine. In this latter methyl (C1I3) and benzoyl (C6H6CO?) are the two radicals entering into the oxy- propionic rest. The coca-leaves contain various cocaines with radicals other than those given above, and by chem- ical synthesis a great number of them have been formed. So the methyl of the ordinary cocaine has been replaced by ethyl, giving rise to coca-ethyl and the benzoyl has been substituted by the radicals of baldrian-, cinnamon-, or phenyl-acetic acid, thus leading to another series of homologous alkaloids. But this does not exhaust the possibilities for the formation of bodies similarly consti- tuted and with similar physiological action. The radical of the oxypropionic acid contained in the ecgonine mole- cule can be replaced by other acid radicals, which of course must contain one carboxyl and one hydroxyl group. . In fact, by oxidizing ecgonin, Einhorn has suc- ceeded in composing a body which contains oxyacetic acid instead of oxypropionic acid. By introducing the benzoyl and the ethyl in this new combination a body is obtained which is isomeric with cocaine and possesses highly anaesthetic qualities, at the same time surpassing cocaine in poisonous effects, as Ehrlich has found. Ex- periments with a number of these cocaines and their components have shown that the alcohol radical above mentioned is essential for the anaesthetic effect, and that with its removal from the cocaine molecule the anaes- thetizing and poisonous properties disappear (Pouls- son, loco citato'). * For the information regarding the actual process of manufacture I am indebted to Dr. E. R. Squibb's personal communication: it is drawn partly also from his journal Ephemeris. The process above de- scribed applies only to his factory, but most likely a similar one is em- ployed in other establishments. 176 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Cocaine, Cocaine. Elementary Action oe Cocaine.-Our knowledge of the manner in which cocaine acts as a local anaesthetic has been materially promoted by a number of investigations on its action on various living cells and tissues. That the local anaemia observed upon local application can- not be the cause of the anaesthesia, as several authors have asserted, must be apparent to everybody, who ap- plying it to the eye notices that the anesthesia of the cornea precedes the anaemia of the conjunctiva. Several facts, as for instance the slight cloudiness and the dotted erosions of the corneal epithelium after repeated applica- tions of cocaine, pointed to this drug being a general pro- toplasma poison, first stimulating and then mortifying it. The writer, who in his first experiments noticed the haziness of the corneal epithelium, was inclined to con- sider it due to evaporation, in consequence of the arrested secretion of tears and diminished winking of the lids, brought on by the local anaesthesia. When, with the in- creasing general use of cocaine as an anaesthetic, reports began to come in about opacities of the cornea occurring after operations in which cocaine and simultaneously solutions of corrosive sublimate had been used (Herschel, Bunge), the writer set out to determine this question by experiment. Wuerdinger, of Munich (" Experimentelle und anatomische Untersuchungen fiber die Wirkung des Cocain auf die Cornea," Klinische Monatshefte fur Augen- heilkunde, 1886), had come by his experiments and his pathological researches to the conclusion that the haze was due to dryness of the cornea. In 1886, while in Utrecht, the writer conducted a series of experiments on rabbits, the results of which, however, were never published. Cocaine was instilled into the rabbit's eye and the lids carefully closed over it with an artery for- ceps, while the other eye was kept open by means of an eye speculum. The eye that had been kept open (and into which no cocaine had been instilled) showed drying and loss of epithelium after several minutes, while the cocainized eye showed that by carefully protecting it, the hazy appearance and loss of epithelium in it had been reduced to a minimum. Evidently, therefore, evapora- tion was a factor to be taken into account. [Other experiments established the evidence that the corneal epithelium is especially prone, when cocainized, to be- come hazy by washing the eye with solutions of corro- sive sublimate (of the concentration as used in eye sur- gery, 1 to 4,000-5,000).] But however careful or how- ever often the experiment was made, repeated instillations of cocaine would always produce some haziness and some dotted defects of the epithelium-a condition, though, that would return to the normal within a few hours. It was nearly certain, therefore, that cocaine, as such, af- fects epithelial cells in their vitality. This probability became stronger yet by comparison with the action of erythrophleine, an alkaloid extracted from the bark of erythrophlaum guineense. This alkaloid, like a number of others, has very strong anaesthetic properties, even stronger than cocaine. The irritation preceding the anaesthesia is much more marked and of longer duration than in the case of cocaine, and correspondingly the in- road upon the vitality of epithelium and corneal tissue is a more vehement one. Two drops of a one-eighth per cent, solution instilled into the writer's eye (Koller, Wiener medicinische Wochenschrift, 1888, No. 6, and Chi- cago Medical Journal and Examiner, April of the same year) proved to be sufficient to set up an irritation of thirty-five to forty minutes' duration and to produce a distinctly visible opacity of the cornea, which took two days to disappear entirely. (This property, together with the highly poisonous action of the drug, has prevented the practical use of it recommended by Lewin.*) The initial irritation, the ensuing anaesthesia, and the simul- taneous clouding of the epithelium are all proportionate in the action of the two drugs and strongly point toward an intimate, or rather a causal, connection. Extensive researches on the action of cocaine upon the vital manifestations of various kinds of cell-elements and low animals instituted by Albertoni (Pietro Albertoni, (SUPPLEMENT.) " Azione della cocaina sulla contractilita del Protoplas- ma," Ann. d. Chim., 1890, p. 305) have shown that cocaine is a protoplasma poison. According to its concentration and the duration of its action it stimulates or paralyzes the protoplasma in its vital functions. For instance a0.25 per cent, solution applied to the palate of a frog stimulates the activity of the ciliated epithelium, so that particles of coal- dust are moved along with four times the ordinary veloc- ity, while two per cent, solutions slacken the velocity to the fourth or sixth part of the normal. Grubs of butter- flies and amoebae in a physiological solution of CINa stop their movements upon the addition of one-half to two per cent, cocaine, and so do the large white blood-cells of astacus. Spermatozoids and other ciliated cells stop their movements in strong solutions of cocaine or when sub- jected to the protracted action of weaker ones. The mu- cous glands in the membrana nictitans of frogs lose their ability to respond to electrical stimulation. The effects, of the electrical current observed in pieces of muscle and nerve disappear soon under the influence of cocaine. So the experiments of Albertoni have established beyond a doubt the view, which was the most reasonable and probable one, that the local anaesthesia is the effect of a paralyzing influence upon the ends of the sensitive nerves. A pathological supplement to this theory is the' fact that nerve-fibres in five per cent, solution of cocaine look less bright than they do in 0.6 per cent. CINa solu- tion (Alms, " Wirkung des Cocain auf die peripheren Ner- ven,'' Du Bois Reymond's Archivfur Physiologic, 1886). A peculiarly characteristic and deleterious effect is exercised by cocaine upon the cells of the liver. The livers of mice, which Ehrlich (" Studien in der Cocainreihe," Deutsche Med. Wochenschr., No. 32, p. 717) had fed with cocaine (0.01 to 0.02 to the " cake," Prince Albert cracker), and which had perished within a few days under this diet showed considerable increase in volume, and their macro- scopic appearance reminded one of the stuffed-goose liver. The microscopical examination showed vacuolar degen- eration of the cells ; the latter were enlarged, contained many vacuoles, and very small remains of protoplasma about the nucleus. No glycogen was to be found in the cells, nor in fact in the whole liver. The hepatic con- nective-tissue showed fatty degeneration and "coagula- tions-nekrose ; " the stellated cells and the endothelia of the blood-vessels showed also fatty degeneration. Action Upon Nerve-tissue.-The action of cocaine upon nerve-tissue, therefore, cannot be considered as be- ing of a specific kind, but is rather identical with the general action of this drug upon protoplasma, the only difference being that the nerve-tissue responds more readily and more effectively to outside influences. In accordance with this view one would expect that all nerve-tissue would be similarly affected by it, although the action upon the ends of the sensitive nerves is most marked and constitutes the most striking property of cocaine and its main claim as a valuable therapeutic agent. In order to test the action of cocaine on other than peripheral sensory nerves, the writer devised a series of experiments, with the purpose of deciding the question whether the terminal apparatus of the higher senses could also be paralyzed by cocaine. The field of experiment selected was the retina. In two cases in which an enu- cleation of the eyeball had to be performed, perception and projection of light being still present, cocaine was injected into the orbita by means of a hypodermic syringe, as near to the eyeball as possible. In one of these cases it was apparent that the perception of light was affected in that part of the field of vision which cor- responded to the place of injection. Continued injection in other places around the eyeball blinded other corre- sponding parts of the field, until after some time nearly all perception of light was lost. The other case did not give any satisfactory result, on account of which these exper- iments were not published. (The experiments were made in Professor Snellen's Eye Clinic, in Utrecht, in 1887). Experiments on dogs, undertaken in common with Dr. H. Zwaardemaker, in Utrecht, failed, on account of the toxic effect of the doses necessary. Later on, Dr. II. * Paper read before the Berlin Med. Sec., January 11, 1888. 177 Cocaine. Cocaine, REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Zwaardemaker (" Cocain-Anosmie, Fortschritte der Medi- cin 1. Juli, 1889") tested the action of cocaine on the sense of smell, and by means of the olfactometer, exam- amined the way in which the smell was affected when cocaine powder of five, ten, and twenty per cent., was blown up the nose. He found that if sufficiently ab- sorbed by the mucous membrane of the upper parts of the nose, it produces anosmia, preceded by hyperses- thesia of smell. The various qualities of smell were equally affected. Tumass ("fiber die Wirkung des salzsauern Cocainsauf die Psychomotorischen Centren." Arch. f. Exper. Path, u. Pharmakoi., 1886-7, xxii., 107-126) has shown that cocaine has the same paralyzing influence upon the gray matter of the cerebral cortex. He experimented on dogs, applying from 0.05 per cent, to 4 per cent, solutions to the psychomotor centres of the cortex, which had been laid bare by trephining. The result was that, after cocaine application, stronger currents were necessary to produce just noticeable contraction of the corresponding muscles. The reduction of irritability lasted fifteen minutes, whereupon it slowly increased, but did not reach the nor- mal within forty-five minutes. The trunks of thick sen- sory nerves were affected in the same way when mois- tened with a solution of cocaine ; they could be cut with- out the slightest manifestation of pain. Other observers obtained the same results. The experiments of Gold- scheider (" Wirkung des Cocain, etc., auf die Sinnesner- ven der Haut.," Wochenschr f. prakt. Dermatologic, 1886, 2), Kochs ("Wirkung des Cocain auf Freipraeparirte Ner- ven.," Centralblatt f. Klin. Med., 1886, No. 33), and Alms (" Wirkung des Cocain auf die peripheren Nerven.," Du Bois Reymond's Arch. f. Physiologic, 1886), show that the application of cocaine to the trunk of a sensory nerve pro- duces peripheral anaesthesia, so that the cocainized part of the nerve seems to constitute an impediment for con- duction. The same experience can frequently be made, when cocaine is applied subcutaneously for surgical pur- poses, and the place of application is near a sensory nerve- trunk. The action of cocaine upon motor nerve-trunks is essentially the same, although the conditions are here so complicated as to make that fact less evident than in the case of sensory nerves. If a cocaine solution is applied to the trunk of a mixed nerve of a frog, the limb controlled by that nerve seems paralyzed both in its sensory and motor functions; but upon further examination it is found that the motor par- alysis is only a consequence of the muscular and cutane- ous anaesthesia (Vulpian " Comptes Rendus," xcix., p. 887, and Alms, 1. c.), for reflex-action can be produced by irritation of other points of the body in the apparently paralyzed muscles. Nevertheless, irritation above the cocainized point (experiments made by Alms, on rabbits) discloses a marked decrease in irritability, so that co- caine acts on motor the same way as on sensory nerves ; that is to say, it impedes the conduction of a stimulus. The paralyzing action on the terminal apparatus of the motor nerves has been demonstrated by Alms. If cocaine is injected into the arteria iliaca communis of one side in a frog, precautions being taken at the same time to pre- vent the cocaine from passing into the general circula- tion, the muscles of the leg of that side become com- pletely paralyzed ; faradic stimulation of the sciatic does not cause contraction, while the muscles retain their di- rect irritability. Cocaine applied in this way has exactly the same effect as curare has when introduced into the blood-circulation. The Action of Cocaine upon the Organism de- pends of course upon this nerve-stimulating and par- alyzing property. A number of more recent investiga- tions of the physiological action of cocaine have brought to light new facts of great importance. To be complete, the following summing up may be in place : The central nervous system of all animals is paralyzed by cocaine in sufficient doses after a period of excitation, which latter in warm blooded animals is characterized by general convulsions, while in cold blooded animals they are absent. The convulsions are of a general charac- ter and of the type of tetanus, and opisthotonus ; they are (SUPPLEMENT.) certainly of central origin (not reflex-convulsions, as they occur at a time when the animals no longer react under the strongest stimulants) and their seat is most likely the medulla oblongata (Anrep, Tumass). The animals die most frequently during these convulsions by suffocation due to tetanus of the respiratory muscles-incidentally as it were, for, if they survive the convulsions, finally paralysis of the entire nervous system sets in, sensibility is lost, reflexes disappear, respiration ceases, the heart stops beating. After very large doses of cocaine Ibis paralysis is developed directly without the intervention of convulsions. [According to the statements of Mosso Arch. f. Experim. Pathologic u. Pharmakologie, xxiii., 3-4, 1887), 0.005 per kilogram will sometimes produce general symptoms of poisoning, xyhile he puts the fatal dose at 0.03 per kilogram. The fatal dose for men is about half that amount.] Small doses, 0.03-0.05 -0.1, produce a decided enhancement of the psychi- cal functions, euphoria, and increased capacity for men- tal and physical work, as shown by the experiments of Freud (" Beitrag zur Kenntniss der Cocawirkung." Wiener medic. Wochenschr., 1885, No. 5), and many other observers with whom the writer, from his own observa- tions, fully agrees. This effect is most likely due to stim- ulation of the gray cortical matter. The powerful effect large (but not toxic) doses have in altering the psychical functions (hallucinations, deliria, irresistible impulse to move) is too well known, from Anrep's dramatic descrip- tion of his experiments on dogs, to be repeated. It will be partly described under the heading, Accidental Poisoning. The exciting effect of large doses is not confined to the cortex. It includes the great subcortical ganglia, the cere- bellum, the medulla oblongata, and the spinal cord, as is evident from the forced movements, the vertigo, the con- vulsions, and the circulatory and respiratory phenomena. Eye.-The action of cocaine, introduced into the gen- eral' circulation, upon this organ is very similar to its action when applied locally; the pupil is dilated, the eye- ball protudes, the eye is opened wider,-symptoms due to irritation of the sympathetic nerve. We must look for the seat of its action upon the sympathetic nerve (when intro- duced into the general circulation) in the nuclei of the sympathetic in the cord and medulla, for if the sympath- etics is severed in dogs after 0.1 cocaine has been in jected into the vena saphena, the above symptoms do not appear on the corresponding side (" G. N. Durdufi, zur physiol- ogischen Wirkung des Cocain." Deutsche med. Wochen- schr.. 1887, xiii., 172-174). The dilatation of the pupil after general, just as after local application, must be ascribed to the contraction of the iris-arteries, as there does not exist another dilater of the pupil in the human eye. Respiration.-Cocaine always accelerates the respira- tion by stimulating the respiratory centrum. Large doses produce very frequent dyspnoic breathing, increasing to tetanus of the respiratory muscles. Fatal doses finally paralyze respiration. Circulation.-In small and medium doses cocaine increases the frequency of the heart-beat, small doses ren- dering the contraction at the same time more powerful (Mosso). The increased frequency is most likely due to stimulation of the accelerating nerves of the heart (Dur- dufi). Large doses finally paralyze the heart (the action is different in frogs, the frequency being diminished in- stead of being decreased). Vary peculiar and characteristic is the action of cocaine upon the blood-vessels. Local application has a powerful constringent effect upon the small blood-vessels, making the tissue affected almost anaemic,as we can observe every day when applying cocaine to the nose or to the eye. This action upon the blood-vessels is evidently due to a stimulating effect of cocaine upon the nerves af the smooth muscular fibres. The contraction resulting is of long duration (several hours) and is followed by a relaxa- tion. [Again here we find a difference in frogs. Local application of even weak solutions (1 : 4000) to the frog's tongue, produces considerable dilatation of the blood- vessels.] Introduced into the circulation, cocaine has the same constricting action upon the blood-vessels, and this evidently by means of acting upon the cen 178 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Cocaine. Cocaine. ties of the nerves of blood-vessels, as, for instance, is shown by the dilatation of the pupil (anaemia of the iris) not appearing if the sympathetic nerve has been severed. The pressure in the arteries is increased by medium doses in consequence of constriction of the small blood-vessels. Fatal doses lower the pressure accordingly. The, secretion, of urine is materially increased by medi- um doses (even to the double of the normal) just on ac- count of the increase of pressure in the arteries; very large doses diminish and finally stop urine secretion (Bignon : " Des Proprietes toxiques de la Cocaine," Bul- let. gen. de Therap, 1886, ii.). Intestines.-Peristatic movements are increased ; very large doses paralyze the intestines, which at the same time become very hyperaemic. Secretion of saliva and perspiration stops after local application, and also when the drug acts by way of the circulation, most likely on account of the paralysis of the secreting epithelium, and constriction of the blood-ves- sels. Practical Use.-Eye Surgery.-Cocaine is used for a threefold purpose : As an anodyne in painful affections ; as a local anaesthetic in eye operations; as a dilater of the pupil. Owing to the short duration of the cocaine anaesthesia (about fifteen to twenty minutes), its use as an anodyne is a limited one. Naturally it would be most useful in pains caused by superficial erosions, or ulcers of the cornea. The weakening effect upon the vitality of cells (as shown in the paragraphs devoted to the consideration of its action on cell elements) does not make a frequently repeated and prolonged action desirable. It is found very useful in the examination of an eye, where pain, photophobia, and lachrymation would otherwise render such an examina- tion almost impossible, as in conjunctival or corneal troubles, cases of superficially seated foreign bodies, scalding by chemicals, etc. In pains which might pos- sibly be of glaucomatous origin the use of cocaine should be carefully avoided, as it has repeatedly been found to hasten the development of a glaucomatous attack previously threatened (Javal). Supra- or infra-orbital neuralgia can frequently be successfully combated by hypodermic injection. The use of cocaine as a local anaesthetic in eye operations is a very extended one, and it has reduced the employment of general anaesthesia by ether or chloroform to a minimum. The objections raised against it in the beginning, of producing sometimes opacities of the cornea after cataract operations, have been silenced by its more judicious application, by pre- vention of evaporation, and by avoidance of the too free use of sublimate or other coagulating antiseptics. An- other objection raised by several writers, that the cocaine anaesthesia renders the eye so hypotonic that the expres- sion in operation for cataract becomes difficult, has not been heard of in the more recent literature. On the contrary, many operators who follow the trend of the time by practising cataract extraction without iridec- tomy, consider the revival of this more perfect method as partly due to the cocaine anaesthesia, the latter being instrumental in preventing prolapse of the iris. While operations on the conjunctiva and on the cornea can al- ways be made perfectly painless by instillation of cocaine solutions, such operations in which the iris is touched or cut, as iridectomies and operations for cataract, cannot always be rendered perfectly painless by instillation, owing to the difficulty of making the iris sufficiently anaesthetic. In a number of cases one does succeed, in another number one does not. The writer has found the following to be the most effective method of instillation : Begin to instil a four per cent, solution, twenty to thirty minutes before the operation (time necessary to reach the iris), instilling at intervals of five minutes each. During the whole time the eye is kept closed to prevent evaporation. The iris can, with certainty, be rendered anaesthetic by instilling cocaine into the anterior chamber after the corneal section. A David's spoon is inserted through the corneal wound into the anterior chamber and a drop of cocaine allowed to run into it along the furrow of the instrument; the spoon is withdrawn, the (SUPPLEMENT.) speculum removed, and the eye closed for two to three minutes. Although this proceeding complicates the operation it has its justification in the great importance of complete anaesthesia of the iris for the safety of the operation. If prolapse of the iris occurs right after the corneal section some of the advantage of this procedure is lost. In a proposed iridectomy it is therefore best not to allow the whole of the aqueous humor to escape dur- ing the corneal section. For operations on the tendons and muscles (tenotomies and advancements) instillation is never sufficient for a complete anaesthesia, and there- fore, as far back as 1885, the writer resorted to subcon- junctival injections in these operations. He proceeds as follows : After repeated instillation of a four per cent, solution, to make the conjunctiva anaesthetic, a speculum is inserted, and, by means of a mouse-toothed forceps, a fold of the conjunctiva at the point of operation is seized. The needle of a hypodermic syringe is inserted into it, if possible, as deeply as Tenon's capsule and a few drops of a two per cent, solution are injected. Then the eye is closed again after removal of the speculum, and the artificial oedema of the conjunctiva is given time to dis- appear, which it does in five to ten minutes, aided by occasional slight rubbing. In this way the operation can be performed absolutely without pain. The cocaine solution is made aseptic by filtering and boiling, which latter does not affect its efficiency. The syringe is cleaned with alcohol and rinsed with a two per cent, carbolic or three per cent, boracic solution or sterilized water. Recently the writer has used these subconjunc- tival injections very successfully in cataract operations and in iridectomies, following a suggestion made to him by Professor Snellen, of Utrecht, in a private communica- tion (see also Snellen, " Sur 1'Operation de la Cataracte," Annales d'Oculistique, Janvier, 1892). The proceeding is the same as that described for squint operations, the point of injection to be selected near the place of in- tended corneal section. The pupil-dilating property of cocaine is of great value in ophthalmoscopy. While the dilatation is sufficient in the dark chamber to allow a satisfactory examination, it does not have the blinding effect of belladonna, the pupil all the time responding to light. This is due to the fact that cocaine dilates the pupil by constricting the blood-vessels of the iris, but leaves the sphincter intact. Besides, the accommodation is hardly interfered with. The pupil-dilating power of cocaine, if combined with that of atropine, is invaluable in cases of iritis. The mydriatic effect of this combination is stronger than that of any other drug or any combination of drugs ; it coun- teracts both forces that contract the pupil-the sphincter and the blood-vessels. (Hyperaemia of the iris tends to contract the pupil by stretching the tortuous course of the iris arteries, while the blood-vessels, when empty, re- turn to their tortuous course and so dilate the pupil.) The anaemia of the blood-vessels is a strong check to the inflammation, the pain ceasing mostly after a few instillations, and the duration of treatment being greatly shortened. The writer uses a mixture of equal parts of a one per cent, solution of sulphate of atropine and a five per cent, solution of hydrochlorate of cocaine ; at first he instils every ten minutes until the pupil is dilated (three to four instillations necessary), then only three times a day. The combination of the two drugs is also efficient in cases of cyclitis. Bhinology and Laryngology.-In the examination and treatment of the nasal cavities cocaine has an exten- sive field of usefulness. By its power of constricting the blood-vessels the mucous membrane recedes and inspec- tion of the posterior parts is facilitated; in chronic ca- tarrh with hypertrophy a proper inspection without its help would be impossible. Medicated applications and the actual cautery or caustics can be employed painlessly. In reflex neuroses starting from the nose the exact local- ity of the trouble can be detected, inasmuch as by appli- cation of cocaine to the starting-point the patient is tem- porarily relieved (asthma, mimic spasm, etc.). In hay fever it affords relief but has no curative power. Pos- terior rhinoscopy is facilitated by checking the reflex 179 Cocaine. Cocaine. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) action of the soft palate and the tedious practising of the patient is done away with. The solutions are applied either as a spray by means of an atomizer or with a cot- ton wad on the point of a probe. For spraying, only weak solutions (two per cent.) should be used, in graduated bot- tles, so that the quantity used is known, to avoid the possi- bility of poisoning. Weak solutions applied repeatedly at intervals of five minutes will accomplish the same result as strong ones ; the first application constricts the blood- vessels and the following ones act more strongly on the anaemic membrane, while at the same time a too rapid absorption, with its poisonous effects, is prevented. For application with brush or cotton stronger solutions (five, ten, or fifteen per cent.) may be used. Nasal surgery has been greatly promoted by the use of cocaine. Operations on the septum and the turbinated bones can frequently be performed painlessly, although not always so. Laryn- gological examination and operation is made easier by stopping reflex action of pharynx and larynx ; the prac- tising of the patient is done away with. For making the vocal cords anaesthetic very strong solutions (twenty per cent.) are required ; they are applied with brush or cotton. Otology.-Comparatively little advantage has been brought to otology by the use of cocaine. The drum- head (covered with epidermis) can hardly be rendered completely anaesthetic, but the sensibility can be lessened by repeated application of a warmed fifteen to twenty per cent, solution (Hedinger). In operations in the tympanic cavity more can be expected from its anaesthetic effects, although, only if the operation is limited to the mucous membrane (Kretschmann: "Communication about the Experiences made in Schwartze's Clinic," Arch. f. Ohren- heilk., xxiii., 4,1886). Catheterization of the Eustachian tube is facilitated and made painless ; the air penetrates in broader current into the tympanic cavity. Hedinger (Wurtemberg. Corr. Blatt., Ivii., 7, 1887) relates favora- ble results in cases of inflammation of the middle ear. A few drops of a two to four per cent, solution blown into the Eustachian tube by means of a catheter were in most cases sufficient to stop the pain for several hours. Kiesselbach (Monatsschnft f. Ohrenheilkunde, xxiii., 9, 1889) had good success from insufflation of a few drops of a four per cent, solution into the Eustachian tube in cases of subjective ear-noises. The insufflations were made at intervals of three to five days, the strength of the solu- tion being increased to ten per cent. The most various noises disappeared entirely; most cases improved. General Surgery.-The use of cocaine in general sur- gery is very extended, and in minor operations has dis- placed general anaesthetics and other methods of local anaesthesia. It is injected under the skin or into the deeper layers of the skin at the site of the operation by means of the hypodermic syringe. Careful distribution over the field of operation is necessary for full effect. Corning's method of " incarceration " is an important im- provement on the simple injection (J. Leonard Corning: " On the Prolongation of the Anaesthetic Effects of the Hydrochlorate of Cocaine when subcutaneously injected -an Experimental Study," New York Medical Journal, September 19, 1885, and "Local Anaesthesia in General Medicine and Surgery," in book form, Appleton & Co., 1886). A short time is given to the circulation to distrib- ute the drug over the field of operation, then exsanguina- tion of the limb and application of a tourniquet (especially devised apparatus on other parts) keep the solution in place. By this way of proceeding, the anaesthetic effect can be prolonged indefinitely, while absorption into the general circulation and poisonous effects are prevented. At present extirpation of small tumors, extraction of foreign bodies, amputations of fingers and toes, operation for phimosis, operations for ingrown nail, incision of ab- scesses and furuncles, are performed under cocaine anaes- thesia. Pernice (Deutsche Med. Wochenschr ift,W>W, 14) re- ports more than a thousand cases operated in the Polyclinic at Halle, where one per cent, solutions were used, which were always found sufficient. One to two syringes were injected (0.01-0.02), and thus accidents could with cer- tainty be avoided. In genito-urinary surgery cocaine is extensively used, not only for external and internal urethrotomy, but also for operations in the bladder (litholapaxy). As the unbroken epithelium of the bladder has hardly any power of absorbing, enormous quantities have some- times been used (1.00-5.00 ! !). However, genito-urinary surgery is especially rich in accidental poisoning, the as- sumption of an unabraded epithelium not always being correct. Dentistry.-To make extraction of teeth painless it is not sufficient to brush the solution on the gums, as this does not make the alveolus anaesthetic. Even injection between gum and alveolus in one place only will fre- quently fail. All those who report successful anaesthesia (George Viau : " De 1'Anesthesie buccale," Paris, 1886 ; Bleichsteiner, Congress of Dentistry, Paris) concur in the recommendation to inject the solution under the gum in several places on the inside and outside of the alveolus. A five per cent, solution is sufficient, and not more than 0.05 cocaine should be used. Even then the number of cases where constitutional symptoms occur is large com- pared with its application in other branches of surgery. Schlenker ("Ueber Cocain als locales Anaestheticum," Tageblatt der 61. Vers. deutscher Naturf. und Aerzte, Coin, 1889) had three per cent, of graver and five per cent, of minor cases of poisoning. Bleichsteiner had col- lapse in five to six per cent, of his cases. Gynecology.-Apart from the use in minor operations on the vulva, vagina, and the cervix, cocaine is especially valuable in the treatment of vomiting in pregnancy, va- ginismus, and sore nipples. In cases of vomiting in preg- nancy it has been found successful where all other medi- cation failed, whether administered by the stomach, hypo- dermically, or by application to the os or cervical canal (Weiss: Prager Med. Wochenschr., 1884, No. 51-0.004 internally every half-hour ; Phillips : London Lancet, No- vember 26,1887). It is scarcely used any more at present in obstetrics ; in the first enthusiasm it was recommended to alleviate pain in labor. Dermatology.-Cocaine does not have any effect if ap- plied to the unbroken epithelium. If the latter is macer- ated or wanting, solutions or ointments can be used to combat itching as in vesicular eczema, especially in the itching eczema of the genitals, in painful ulcers, and after cauterizing. In different operations on the skin, and be- fore cauterizing, the application is the same as described under the heading of General Surgery. Touton reports painless treatment by electrolysis of warts or moles, if a few drops of a five per cent, solution are injected under the little tumor (which fact the writer can confirm). It is of theoretical interest that cocaine, like other substances, can be driven into the skin by the electrical current if applied to the positive pole-cataphoretic action of the galvanic current. (Wagner : " Ueber eine neue Methode Haut Anaesthesie durch Cocain zu erzeugen," Zeitschr. fur Therapie, 1886, No. 6). The anaesthesia thus engen- dered may be used for superficial operations. In general medicine much has been expected from the stimulating powers of cocaine upon the physical func- tions. However, it does not seem to be extensively used for this purpose, perhaps from exaggerated fear of the co- caine habit. From the experiments of Freud, Hammond, and others it is apparent that it has a decidedly stimulat- ing power upon the psychical faculties, and some writers report very good results in neurasthenic patients and in melancholic depression (0.02-0.03 internally several times a day). According to these observers (Freud : " Bemerk- ungen fiber Cocainsucht und Cocainfurcht," Wiener Med. Wochenschr., xxxvii., No. 28, 1887) the cocaine habit is not to be feared, as persons, unless they are addicted to the opium habit, can discontinue the use of cocaine with- out any symptoms therefrom. Preparations of coca in the form of coca wine are extensively advertised and used as a nerve stimulant. In whooping-cough applications of two to five percent, solutions to the tonsils, pharynx, and epiglottis have been used with good result (Schuirer : Arch. fur Kinderheil- kunde\ Various neuralgias and the shooting pains in lo- comotor ataxia are a field for the subcutaneous applica- tion of cocaine. In tabes, 0.02-0.03 twice a day is re- 180 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Cocaine. Cocaine. ported to have succeeded in cases where morphine did not have the desired effect. Cocaine has also been rec- ommended in sea-sickness, however with little success. Opium Habit.-The recommendation (Freud : Central- blatt fur Therapie, July number, 1884) to use cocaine in the cure of the opium habit did not meet with general approval, on account of the danger of making the sub- jects of the opium habit victims of the cocaine habit in addition. As Freud (" Bemerkungen fiber Cocainsucht and Cocainfurcht," IFr. Med. W., 1887, No. 28) believes, cocaine is a very valuable agent to combat the craving for morphine and the collapse incidental to the disuse, pro- vided the physician absolutely controls the administration. Obersteiner considers the use of cocaine admissible if no morphine at all is given. He recommends to administer it only internally, the first dose 24-48 hours after the last dose of morphine, giving about 0.05-0.1 several times a day, and not more than 0.5 per day, gradually diminish- ing the quantity and stopping the administration on the fifth or sixth day. Accidental Poisoning.-It is not surprising that a drug which came into such rapid and general use in almost all branches of medicine and surgery, should have given rise to many and even fatal accidents, partly due to lack of acquaintance with the drug, and partly due to reckless- ness. The history of cocaine poisoning has already de- veloped quite a literature. Its more judicious use in re- cent years has greatly reduced the frequency of such accidents. Cases of slight poisoning, which are the com- moner ones, offer the following objective symptoms: Pallor, cold perspiration, frequent pulse, dilated pupils; subjectively the patients complain of dryness of the throat and the lips, a feeling of heaviness in the limbs, weak- ness, or even vertigo. This condition does not last long, and after a short time (one-half to one hour) complete well- being sets in, although no restoratives are used. In an- other class of more serious accidents great mental ex- citement, with talkativeness, hallucinations, and even delirium, can be present. On the other hand, conditions of syncope and collapse can prevail. In the gravest cases painful dyspnoic breathing, clonic and tonic convulsions occur, which can cause death by tetanus of the respiratory muscles. Or death can result from paralysis of respira- tion and heart without preceding convulsions. Dr. Paul Mannheim, under the guidance of Leyden, has made a thorough compilation of the accidents hitherto reported in medical literature (" Ueber das Cocain und seine Gefahren in physiologischer, toxicologischer und therapeutischer Beziehung,' Zeitschrift fur klinische Medicin, xviii., 3 and 4, pag. 380, 1891). The discussion in the Societe de Chirurgie de Paris of a fatal case reported by Dr. Paul Berger, is also of great interest and rich in information (" Empoisonnement mortel produit par 1'injection d'une Solution de Chlorhydrate de Cocaine dans la tunique vaginale & la suite de la ponction d'une hydrocele," Bul- letin et Memoirs de la Soc. de Chir. de Paris, 1889, pp. 751, 757, 761, 790). Mannheim has collected ninety-nine cases from the lit- erature in which the doses used, the symptoms, etc., were stated with sufficient accuracy, and the following account is based upon these cases. The statement frequently made that weak and nervous women are more inclined to constitutional symptoms cannot be accepted; sex does not show any influence. Idiosyncrasy cannot be proven to play a part (the writer fully concurs in this opinion). Al- though idiosyncrasy against alkaloids certainly exists as a rare exception, it will not do to assume such peculiarity in every case where a quantity, harmless to one individual, produces constitutional symptoms in another. There are other circumstances that should be taken into considera- tion, for instance, the velocity with which a given amount is thrown into the general circulation. The same quan- tity in a more concentrated solution will be more quickly absorbed than if dissolved in more water; a tissue richer in blood-vessels will absorb faster than a less vascular- ized one, etc. For similar reasons it may be that con- stitutional symptoms occur with relative frequency in operations on the head, which fact has been especially emphasized by Wolfler (" Zur toxischen Wirkung des Cocain," Wien. Med. Wochenschr., xxxix., 18, 1889) and explained by the nearness of the brain). The sitting post- ure has been accused as especially aiding the anaemia of the brain, supposed to be the chief cause of the weakness and vertigo in the minor cases. Out of the ninety-nine cases tabled by Mannheim, cocaine was administered hypodermically in fifty-one, instilled in the eye in nine, in the ear in two, brushed on the mucous membrane of the nose in five. Sometimes very small doses produced graver symptoms, sometimes very large doses were fol- lowed by very slight ones. The time of appearance of the symptoms varies, being five to ten minutes on an average; sometimes they appeared immediately after ad- ministration, or after a few seconds, sometimes only after one-fourth or even one-half hour. In the following the symptoms of poisoning are given as collected by Mann- heim from the various cases. (The seeming contradiction in the symptoms is not to be wondered at, if it is taken into consideration that cocaine is a poison with first stimulating and afterward paralyzing properties, and that according to quantity or velocity of absorption the first or the second will prevail.-Writer.) General Symptoms. -The patients become sleepy and get into a soporous condition; they almost lose consciousness and faculty to articulate, or they fall within a few min- utes into a very deep sleep of comatose character. Severe collapse has been observed, preceded by weakness, with complete loss of consciousness of long duration and with reduced respiration. In other cases the patients become very restless and excited, seem dizzy, cry and laugh alternately, gesticulate, and are very talkative, not heed- ing any questions put to them ; incessantly change their position, stand up, sit down ; their gait becomes un- steady, like that of a drunken person. This condition grows into intoxication, or a feeling of impending death. There may be sleeplessness, lasting from thirty to forty hours; afterward complete forgetfulness of what has happened. Central Nervous System.-In mild cases reflexes are increased, cerebral irritation and delirium, lasting as much as an hour, hallucinations. In severe cases epi- leptiform attacks, with general clonic convulsions, lasting even five hours, tetanus, opisthotonos, death. Peripheral Nenes.-Sensibility diminished. Com- plaints of loss of sensation on the whole body or on single parts, limbs, or pharynx. Sometimes only numbness, sometimes complete anaesthesia. Feeling of intense cold- ness in the anaesthesic parts. Various paraesthesias. On the part of motor nerves twitching of single muscles (or as already mentioned, general convulsions), in other cases heaviness or tired feeling in the limbs, sometimes aggravated to apparent paresis. Gait staggering or com- plete inability to walk. Eye.-Pupils dilated, sometimes very contracted ; react- ing in some cases, in others motionless. Some patients complain of darkness before the eyes, others notice di- minished acuteness of vision, complain of mist before the eyes ; in some instances complete amaurosis (transient). One lady recovered vision only after four hours. Other Special Senses.-Buzzing in the ears, various dis- turbances of smell and taste. Respiration.-Short, whistling, laboring. Paroxysms of dyspnoea. On the contrary, the frequency can be diminished (even to nine respirations in the minute) and may cease, so that death occurs by asphyxia. Sometimes Cheyne-Stokes respiration has been observed. Circulation.-Pulse very accelerated, often very weak, filiform, irregular, at last hardly, or not at all perceptible. In other cases, pulse less frequent. Diuresis increased according to some writers, diminished and even sup- pressed according to others. Organs of Digestion.-Numbness of the throat, as- tringed sensation and dryness in the pharynx, dys- phagia. Burning pain in mouth and stomach (even after hypodermic administration). Pain in intestines. Rectal and vesical tenesmus. Cause of Death.-Paralysis of respiratory and vaso- motor centres and heart, whereas in other cases death results from tetanus of respiratory muscles. 181 Cocaine. Coeliotomy. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Autopsy showed, in the few cases examined, intense hyperemia of the brain and of the inner organs. Fatal Dose.-In five of the fatal cases the dose was larger than one gramme, whereas only one patient wrho had been given one and one-fourth gramme recovered. From this Mannheim concludes that one gramme is to be considered the fatal dose. Of the 99 cases thus compiled, 9 were fatal. Besides, there are 100 cases in literature where no symptoms are mentioned. Of Mattison's 108 cases, 58 are included in Mannheim's table, whereas 50 are not. This makes altogether 250 cases with 13 fatal results, so that of the accidents reported five per cent, proved fatal. (Consider- ing that most of the graver and fatal cases are reported, while the much more frequent minor accidents do not come to general cognizance, the figure five per cent, is certainly too high.-K.) Treatment of Cocaine Poisoning.-In the minor cases, where weakness and dizziness prevail, horizontal position of the patient and administration of stimulants, like brandy, coffee, ether, are the reasonable measures to be taken. Inhalation of a few drops of amyl nitrite has been recommended, and is the measure generally adopted to combat the supposed anaemia of the brain. For the severe cases, where convulsions occur, Mosso, from his experiments on dogs, comes to the following conclusion : " If it were necessary to assist a human being poisoned with cocaine, one would have immediately to resort to ether or chloroform to prevent tetanus of the respiratory muscles, which is the most frequent and dangerous cause of death. After the first grave and imminent danger has passed, chloral can be given. If respiration stops, arti- ficial respiration must be resorted to." Dose.-Internally 0.02 to 0.05 gramme several times a day can be considered a safe dose, and even 0.1 may be given. For hypodermic use in operations it is advisable to keep under the 0.05 limit. Weak solutions of one per cent, and two per cent, should be used, well distributed over the field of operation. For spraying (nose, throat) weak solutions (two per cent.) should be used in known quantity. For operations in nose, pharynx, and larynx, brushing with strong solutions cannot be avoided, but in these cases the danger is obviously less, because the quantities used are small. Careful watching of the pa- tient and gradual administration in all cases will increase the safety of continued administration. Cocaine Habit.-Most subjects of the cocaine habit are victims of the opium habit who have taken cocaine for the purpose of curing themselves, have not succeeded in their efforts, and have consequently become addicted to both drugs. It is therefore not easy to state the symptoms of the cocaine habit pure and simple. Luff (London Lancet, September, 1889) tells of a man who used 0.25 gramme daily during three years for nasal catarrh, and who, in consequence, was very much reduced physically, mentally, and morally. He became unsocia- ble, incapable of attending to his business, because un- able to come to any decision. Palpitations of the heart, obstinate constipation. Bauer (New York Medical Rec- ord, November, 1885) tells of a man who replaced the use of alcohol by daily injection of 0.67 gramme coca- ine. He became very weak, lost all appetite ; had at- tacks of delirium ; ultimately complete physical and mental decay. From all observation it appears that rapid falling off in flesh is one of the most prominent somatic symptoms of the cocaine habit. Erlenmeyer {Deutsche Medic. Zeit- ung, 1886, page 483) reports a falling off of twenty to thirty per cent, within a few weeks, without diminution of food and with no existing catarrh of the stomach. He lays- great stress on the respiratory and vaso-motor disturbances caused by the blood-vessel paralyzing prop- erties of cocaine : frequent pulse, relaxation of arterial system, profuse perspiration, syncope. The psychical symptoms are very marked and characteristic, and in wTell-developed cases offer the clinical picture of halluci- natory paranoia. They consist, according to Obersteiner, chiefly of feelings of fright caused by hallucinations, especially in the visual and sensory sphere. Either ter- (SUPPLEMENT.) rible apparitions are seen or great hordes of small animals. These latter hallucinations are most likely based on itching paresthesias of the skin, giving to the patient the impression of the presence of insects or worms under the skin and causing him to scratch. There exists, an interesting observation of Ehrlich's, in his experiments with mice above mentioned, which closely recalls these paraesthesias and hallucinations based upon them. One of his mice, after three weeks' use of cocaine, began to gnaw its limb, so that in the course of the next days the whole right thigh down to the knee was entirely denuded. Ehrlich's explanation of this remarkable fact is that par- aesthesias due to degeneration of the peripheral nerves pro- voke the gnawing, while the simultaneous anaesthesia of the skin leaves the latter without the protection of sen- sation. While some writers deny the existence of symptoms due to withdrawal of cocaine in cases of well-formed habit, others, like Obersteiner and Erlenmeyer, affirm the contrary. According to Obersteiner they frequently appear only after the lapse of a fortnight and consist of sudden collapse and a feeling of impending death. Erlen- meyer emphasizes the vaso-motor disturbances as palpita- tion, weakness of the heart, dyspnoea, syncope, depres- sion of humor, enormous weakening of the will power. According to all writers the prognosis of the cocaine- habit is not a good one, as patients very readily relapse. Carl Koller. COCILLANA. A plant belonging to the order Melia- ceae, indigenous to tropical America. Its use was advo- cated for its expectorant properties by Professor II. H. Rusby in 1886. It is obtained from Bolivia, where it is- employed as an emetic and purgative. The root is the- part used, from which is prepared a tincture, one part in six, and a fluid extract. The dose of the former is from one-half to two drachms, and of the latter five to twenty minims. The powder is not used, as it produces sneez- ing, coryza, and irritation of the mucous membrane of the nose and throat and pulmonary tract. In over- doses it produces emesis, and causes gastric and intes- tinal irritation. As an expectorant it acts within half an hour, stimulating the secretion of the bronchial mucous membrane and producing a free flow of mucus; this continues for some hours, and is followed by diminished activity of the glands. It has very little action on the skin. It has proved of greatest service in chronic and subacute- bronchitis when the secretion is scanty and tenacious. In such cases it liquefies the secretion and stimulates ex- pectoration. The fluid extract, in doses of ten minims every three or four hours, seems to have been the most serviceable means of securing its effects. In the early stages of acute inflammation it should not be.given. In bronchorrhcea and in the aged with profuse secretion it is not advised, as it does not stimulate the respiratory organs, and might produce too free secretion within the tubes. In phthisis it has to be used with caution on ac- count of its irritant action upon the digestive tract, and the danger of producing inflammatory foci in the lungs. Beaumont Small. CCEL1OTOMY, DRAINAGE AFTER. As early as 1856 Dr. Peaslee advocated the use, after coeliotomy (laparot- omy), of a rubber drainage-tube which should pass from the lower angle of the abdominal wound downward and through an artificial opening made from the bottom of Douglas's pouch into the vagina. He irrigated through this tube, from above downward. His success was sat- isfactory, but the practice fell into disuse, because a little later a glass tube began to be substituted for the rubber, although it was allowed to pass in only to Douglas's pouch. About this time Lister was teaching us our first lessons in antiseptic surgery. The short or long glass- tube, as was needed, proved much more useful than the rubber had in the earlier attempts at drainage, not be- cause of a better principle, but rather because of im- provement in the antiseptic methods in doing the work. Peaslee's ideas of drainage were correct, as we look back at his work to-day. But we know better now how 182 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Cocaine. C celiotomy. much to trust to nature and how much to drainage. Later still, in 1886, the method of packing any part of the abdominal cavity which was denuded of its normal peritoneum, with a quantity of aseptic gauze, was advo- cated. This practice, without doubt, has served to save the lives of many patients. There are always possibilities of danger in the use of drainage-tubes : (1) In the fact that the operator can, or may, do a hasty or an imperfect operation, with the con- sciousness that the subsequent use of the drainage-tube will avert all danger ; (2) because in the after-treatment sepsis may be conveyed directly to the wound by means of the tube itself ; (3) because of the extra liability to ventral hernia when the tube is used. That a drainage-tube, or drainage-gauze, should ever be needed is clear proof that surgical work in the abdom- inal or pelvic cavity cannot be done after an ideal method. Any drainage after an operation means imper- fect work. In other words, we have not removed all possible sources of sepsis ; we have not checked all bleed- ing from small vessels ; we have tied arteries which will destroy the vitality of certain sections of tissue ; we have broken up adhesions, and have not protected these raw surfaces in a kindly manner ; we have left the pedicle insecure. These indications existing, and with the very best sur- gery, it is necessary to reduce the dangerous results of such imperfect work to a minimum. To do this we must not neglect any precaution which, in our judgment, is necessary, or which is well known to be of absolute service. The latest method of operating upon a table which will easily allow the patient to be placed in the Trendelenburg posture, and in a room where a strong electric light can be used in the exploration of the cav- ity after the tumor has been removed, has rendered the subsequent use of a drainage-tube, in many of its pre- vious forms, quite unnecessary. For with these methods, other things being equal, every bleeding vessel should be detected as surely as though it was on the face of the patient. This ability to see into the cavity thoroughly also ren- ders the operator far less likely to rupture, in removal, the small or large septic tumor. And so, also, the adhe- sions are dealt with more gently when all can be seen by the eye as well as felt by the finger ; facilities which the new posture and the electric, or strong, light afford. To-day, therefore, when the operator is aseptic, the field of operation aseptic, and the surgical implements aseptic, the table and the light as nearly perfect as can possibly be obtained, we have far less need of the drainage-tube and are nearing our ideal operation. But, as we have not yet attained to this ideal standard, we must, for the present, resort sometimes to the best method for drain- age. The several methods of drainage may be quickly de- scribed. The glass tube is the one which has been most frequently and most successfully used during the last ten years. The tube, if needed at all, should be from three- quarters to one inch in diameter and from four to six inches in length: it should be open at the distal end and have several side perforations near this end. It is not necessary for the tube to be curved, as was formerly believed to be important. This glass tube should be placed so that the distal end will rest very near to the probable or possible future location of sepsis, the prox- imal end resting in the lower angle of the abdominal wound. One suture should always be inserted here, and left untied, for the special purpose of closing this track as soon as the glass tube is removed. The tube should be loosely packed with sterilized gauze, which, at the proximal end of the tube, should be covered with a com- press of soft, sterilized, absorbent cotton. The tube should be dressed from time to time, according to the rapidity with which the gauze becomes saturated from within, and should be removed just as soon as the fluid which escapes is found to be scant and benign in char- acter. The drainage should take place through iodoform gauze in all septic cases, as it will be necessary to retain the glass tube in situ for from four to six days. In case the packing is only to check a hemorrhage from small vessels, and surfaces from which the peritoneum has been removed, common sterilized gauze will suffice, as such packing can soon be safely removed. For pockets beneath the broad ligaments, or low down in Douglas's pouch, counter-drainage should be insti- tuted through the vagina. The gauze should be from one and one-half inch to two inches wide and from tw o and one-half to ten yards in length. The distal end should be passed through an opening, which can be most easily and directly made into the vagina. The opening can be made with a trocar, or forceps, or scissors, from above downward, the finger in the aseptic vagina indicating the locality of the least amount of tissue to be pene- trated, care being taken at the same time to avoid the ureters and uterine arteries. An iodoform gauze tampon should be inserted in the vagina. The proximal end of the drainage-gauze should be carefully and methodically laid in, fold on fold, or coil after coil; and finally it should be crowded into the cavity which is to receive it. If it is possible, the slit in the broad ligament, or the parts above Douglas's " pouch," should be closed with catgut sutures, thus completely shutting off the gauze from the abdominal cavity. Of course, after making a counter-opening into the vagina there must be a thor- ough irrigation, with sterilized water, through the lower pelvis and out through the vagina, before the gauze is inserted. The following are the notes of two of my own cases treated in this manner : Case 1. Mrs. II., in my service at the Woman's Hos- pital, 1891. She had physical and symptomatic evidence of a cyst in the true pelvis, under the broad ligament. There had been exacerbation and remission of fever, her physician informed me, before she entered the hospital. I found, on operating, that the left ovary had been dis- placed backward, and after being completely covered by the broad ligament and an exudate, an ovarian cyst had developed, over three inches in diameter. Splitting through the exudate, I emptied the cyst with the aspirat- ing needle. Its contents w ere purulent. I then enucle- ated and cut away the larger part of the cyst, but the lower zone was so tightly adherent to the cellular tissue which formed its bed, that the question of time for removal of all this friable, septic material bad to be considered. As there was but a thin wall of tissue between this part of the cyst and the vagina, I quickly decided to drain into the vagina. I placed, therefore, a long piece of gauze in the jaws of a somewhat sharp-pointed pair of forceps, and then pushed this instrument through the lowest por- tion of the cyst which I had been unable to remove, di- rectly through into the vagina just back of the cervix. I will mention here that in my service the vagina is al- ways made aseptic before coeliotomy. I then irrigated through this opening. The remaining gauze I carefully laid in the cavity just occupied by the cyst and firmly crowded it down. All went well for two weeks. At the expiration of that time I thought I could safely remove the drainage- gauze, and did so. The temperature and pain soon con- vinced me that the drainage should be continued for a longer period. I therefore inserted a rubber drainage- tube for an inch and a half into the sinus, and fastened it in situ by means of a silver-wire suture. This was re- tained in place, and irrigation was kept up through it for nearly four weeks, with the result that the patient at the end of that time was discharged cured. Case 2. Mrs. M., thirty years of age, in my private sanatorium, 1892. A suppurating cyst, three by four inches, was found developed beneath the broad ligament. The ovary and tube on the same side were 1)0111 dis- eased and displaced backward, and covered with an exu- date. An incision directly through the broad ligament laid bare the tumor. The cyst was so friable that I had to remove it in small pieces, and then I could not be sure but that some portion had been left. To have painted this cavity with a germicide sufficiently strong to kill all possible septic elements remaining, or to have 183 € celiotomy. Coelom. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) burned this large surface with the thermo-cautery for a similar purpose, would have exposed the patient to a greater danger than that which the tumor itself would have afforded had it been left undisturbed. I therefore passed the points of a pair of scissors di- rectly through into the aseptic vagina, irrigated through this canal, then pushed the end of the gauze into the vagina, and carefully coiled the remaining portion of the gauze in the nest formerly occupied by the cyst. The tube and ovary on the same side were then loosened up and removed in the usual manner. I then turned the stump of the pedicle into the incision which I had made in the broad ligament on this side, and closed the slit with catgut, leaving nothing that could possibly cause trouble in the abdominal cavity. The gauze was re- moved gradually, a few inches at a time daily, and by the tenth day all had been removed. The patient made a perfectly satisfactory recovery, the temperature, after the first day, never rising above 100° F. The necessities for drainage can be grouped under four heads : 1st. Inability to remove the whole of a septic tumor or tissue, especially when a ligature has passed through such septic tissue. 2d. A large space of granulating surface after enuclea- tion of tumor or separation of adhesions. 3d. A large number of minute bleeding vessels, which, from their location, will require too much time to close. 4th. Fear of secondary hemorrhage. This last reason should be, and will be, the excuse given only by the timid and inexperienced surgeon. The best surgeon will never leave a pedicle so insecure as to excite fear of hemorrhage, while his catgut or other asep- tic ligature material holds out. This fourth excuse for drainage, therefore, may be excluded, and will never be put forward by a judicious operator, when it is under- stood that any pedicle or ligature can be made absolutely secure at the time of the operation, in one-half the time it will take to prepare the patient for a secondary opera- tion, after the necessity for such operation has been demonstrated by the collapsed condition of the patient, and the other usual signs of secondary hemorrhage; and also when it is remembered that all patients are far better able to remain on the operating-table for the five or ten minutes necessary to strengthen the original liga- ture-or for additional ligatures, or a half-dozen deep catgut sutures, introduced with a full-curved, round- pointed needle-before a secondary hemorrhage than after it has occurred. Let us carefully consider the other reasons for drainage : 1. The necessity for keeping a drainage-tube, or gauze, at the site of sepsis will be admitted by all. And we all know that sometimes the condition of our patient will not allow us to carefully curette every septic cavity, even if we were absolutely positive of entirely removing the possible source of sepsis ; and in the true pelvis or under the broad ligaments we are never absolutely certain that we have removed everything septic. Other things being equal, time is a great factor in the ultimate results of all major operations, especially in abdominal surgery. If. however, such septic surface is far from the abdominal wound, and near the vagina, drainage through the vagina, as described, would be indicated and should be preferred. But when there is need of. drainage because of sepsis, or fear of sepsis, and the lowest point of contact for such sepsis is not far from the lower part of the abdominal opening, a glass tube, or a gauze bag, three by six inches, filled with sterilized or iodo- form gauze, and inserted in the lower angle of the abdominal wound, will serve best. I am inclined to use the latter method in tu- bercular peritonitis and tubercular salpingitis, and when a large septic tumor has had to be enucleated from its bed near the normal position of the fundus uteri. The former method, the glass drainage-tube, is preferable where sepsis is feared over only a small space, like the condition present when a very badly diseased tube, or small ovarian abscess, has been operated upon. 2. In really non-septic cases, if there are many adhe- sions broken up and separated, or when there is a large raw surface left in the cavity after enucleating, we must expect much sweating of serum, and we always fear ad- hesions of the intestines to the bed from which the tumor has been removed. In such cases, if we cannot close this large raw surface with a few catgut sutures, and thus shut it off from the abdominal cavity, and after dusting the intestines (when adhesions have existed) with aristol powder, we still find the parts too much inflamed to warrant our trusting to nature's efforts alone, then we must place the bag of gauze in the abdominal wound or the gauze in the vagina, choosing the one or the other, as may seem most judicious. 3. In those difficult cases where there is a somewhat threatening, or at least a continuous, oozing of blood from the lower pelvis, after an enucleation of a solid or semi- solid tumor, if these vessels cannot be seen and closed by pressure, or the hemorrhage is not checked by hot water, nor by dusting with sterilized powdered persulphate of iron, then there is nothing to do but to fill the bleeding space with gauze. First the gauze bag, then packing this bag tightly with gauze from above, and, if we are not then satisfied with the state of things, buttressing the gauze with a firm tampon in the vagina. 4. My firm belief, for reasons given above, is that we should never drain simply because we fear secondary hemorrhage from a large vessel in the pedicle. Too much attention to cleanliness cannot be exercised in managing the tube. In septic cases, after watching the contents of the tube for four or five days, a smaller tube may be used, and generally within a week this can be removed, and the track of the tube be closed by tight- ening the suture. When drainage is resorted to for the purpose of remov- ing the serum from sweating raw surfaces, within twen- ty-four hours the gauze, or the glass tube, should be partially removed, and altogether withdrawn by the end of the second day. In counter-drainage through the vagina a piece of gauze, from three to five yards long and from one and a half inch to four inches wide, should be used, and should be withdrawn through the vagina, little by little, daily, until all is removed. When the last is taken away the cavity should be thoroughly irri- gated. If there is still evidence of pus a rubber drain- age-tube should be inserted into the blind fistula, and retained by one of the several methods in general use. All tubes and all gauze must be thoroughly sterilized. If gauze is to be kept tn situ for a week, sterilized iodo- form gauze remains less offensive when in use than plain gauze sterilized. But when the gauze can be frequently changed, plain sterilized gauze is perfectlv satisfactory. Horace Tracy Hanks. CCELOM. In all vertebrates the primitive intestine forms two sets of diverticula which are destined to be- come permanent tissues, (1) one toward the medullary groove which forms the chorda dorsalis, and (2) two lateral diverticula which form the body cavities. These latter are later on subdivided into pleural, pericardial, Fig. 100.-Transverse Section through the Posterior Region of a Chick, with Six Pairs of My- otoines. (After Waldeyer, from Minot.) Ec., ectoderm; Mes., mesoderm; Ent., entoderm; Md., medullary groove. peritoneal, and other cavities. A detailed description of the theory of the formation may be found in Balfour's work, in Hertwig's " Embryologie, " in Minot's " Human Embryology," and in Minot's article, " Fcetus," in Vol. III. of this Handbook. 184 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Coeliotomy. Coelom. When sections are made through very young embryos of higher vertebrates, just after the blastodermic mem- branes are well formed, a solid mesoderm is present, as shown in Fig. 100. Although in lower vertebrates the mesoderm is produced by lateral diverticula from the en- toderm, which are hollow from the beginning, in higher vertebrates the mesoderm is first laid down as a solid mass of cells. Soon the cells of the mesoderm on either side of the chorda divide into two layers, the somato- pleure and the splanchnopleure (Fig. 101, Som. and Sp'.). It is from these two lateral cavities that the peritoneal cavity is formed. (SUPPLEMENT.) a cross-section from a chick at this stage, and shows that the greater portion of the cavity is now on the outside of the body. The cross-piece of the H is immediately on the ventral side of the heart, and forms the cavity of the pericardium by the heart growing into it. Its communi- cation with the remaining coelomic cavity is later on cut off in higher vertebrates, while in lower vertebrates it may remain open. According to Budge two diverticula grow from the cross-piece, one on either side of the chorda, toward the tail of the body, and form the primitive pleuro-peritoneal cavities. Budge's paper was published from fragmentary notes after Ids death, and I am sure that the above statement is not correct. Pro- fessor His has placed before me Budge's specimens, which I think show conclu- sively that his inter- pretations of his in- jections are not cor- rect. Most of his injections were made into the amniotic fold as the amnion was forming. Cross-sec- tions of embryos show that on either side there is a large cavity (Fig. 102, Som.) which communicates freely with the pleuro-peritoneal (Coe). Before the amnion is com- plete we have lateral cavities on either side of the body, communicating with each other only by means of the cross-piece on the ventral side of the heart. This is the freest portion of the communication, which also com- municates most freely with the pleuro-peritoneal cavities (Fig. 102, Coe.). In many embryos the injection passed from the cross-piece into the pleuro-peritoneal cavity and would not extend out into the amniotic portion of the ccelom, thus making it appear as if the pleuro-perito- neal cavities were, so to speak, diverticula projecting di- rectly from the cross-piece or pericardial cavity. Trans- verse sections, however, give the picture of Fig. 103. Surface views could not decide that these two cavities Fig. 103.-Section of a Chick, to show that the Pleuro-perito- neal Cavity is cut off of the Coelomic, leaving a Portion in the Amnion. The embryo has been injected, but the fluid of the two cavities has not flowed together. Fig. 101.-Transverse Section of a Chick of the Second Day. (After Waldeyer, from Minot.) Som., somatic mesoderm; Spl., splanchnic mesoderm; Ec., ectoderm; Ent., entoderm : V.C., vein ; W., Wolffian duct; Md., medullary canal ; Ao., aorta ; Ch., chorda ; M.S., myotome. The more accurate early formation of the pleuro- peritoneal cavity, in its relation to the other organs, we find carefully studied by Budge, who by means of injec- tion followed it in the chick. With a fine hypodermic syringe he filled the various spaces of the coelom as they appeared, thu^ showing very clearly the extent of this cavity in various embryos. The splanchnopleure, ac- cording to Budge, may be split into two layers, a dorsal or lymphatic and a ventral or vascular. As the first blood-vessels are formed, lymph-vessels appear on their dorsal side, which flow together to form net-works and accompany the primitive veins to the axial part of the germinal area. Here the lymphatics form two spaces, one on either side of the body, which are soon united by a bridge, or rather duct, on the ventral side of the heart. In this way, in birds at least, this primitive pleuro-peri- toneal cavity appears somewhat as an H, the uprights of which are on either side of the body, and the cross-piece Fig. 102.-Section through the Body of a Chick of the Third Day. (After Minot.) Ch., chorion ; Am., amnion ; Soni., somatopleure ; v., blood-vessels; Coe., coelom ; Spl., splanchnopleure; In., intestine; ao., aorta; Wd., Wolffian duct; Fear., vena cardinalis; Ch.d., chorda dorsalis; My., my* otome; Md., medullary canal. on the oral side of the sinus venosus. In its further devel- opment the sinus venosus grows to the dorsal side of the cross-piece, thus reversing the relation of the vascular sys- tem to the lymphatic, or rather coelomic system. The uprights of the H fall to the outside of the body and are swallowed up in the formation of the amnion. Fig. 102 is united directly, and these sections were no doubt made after the writing of the rough draft of his manuscript. Therefore, instead of stating that the two pleuro-perito- neal cavities arise as independent diverticula, we must say that they are pinched off from the coelomic cavity after the amnion is formed. 185 Coelom. Coelom. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) of these sections is the communication between the peri- cardial and pleural cavities shown, but sections nearer the head contain it. A cast of the coelomic cavity of this same embryo is given in Fig. 115. There is only a slight communication between the pericardial cavity and the pleuro-peritoneal. The groove in the cast marked M indicates the position of the simple mesentery. Its relation to these organs is bet- ter shown in the sections (Figs. 109 to 114). Fig. 116 repre- sents a section through a chick at an earlier stage of devel- opment, in which the duct communi- cating between the pericardial and pleural cavities is cut longitudinally. Thus it is seen that the heart first grows into the primitive pericardial cavity, which is nothing else than the cross-piece of the H already spo- ken of. The heart grows larger and larger, at the same time hanging as it were over the ventral side of the body, and is soon connected with the pleuro-peritoneal cavity only by two ducts, which later on become closed in the higher vertebrates. In early embryos the veins enter the heart behind, and not in front, as is the case in higher animals. The heart in its whole development un- dergoes a half revolution, and in this way the twists, etc., are formed. Before the pericardial cavity is shut off from the pleuro- peritoneal the large vessels enter from behind. They are embedded in a mass of mesoblastic tissue which is en- croaching upon the pleuro-peritoneal cavity, and has been termed by His the transverse septum. This, by its further growth, forms the diaphragm of higher animals (Figs. 105, 106, 107). In low7er animals only a rudimen- tary diaphragm, or none at all, is present. By the for- mation of the diaphragm the pleuro-peritoneal cavity is divided into a smaller anterior portion, the pleural, and a larger posterior portion, the peritoneal. The lungs now grow into the pleural, as shown in an early stage in Fig. 116, and in a somewhat later stage in Fig. 109. The peritoneal cavity is at first composed of two dis- tinct portions, one on either side of the intestine, which in lower animals is quite a straight tube, lying in the middle line of the body. Soon, however, twro communi- cations are found between the two halves, one in front and one behind the omphalo mesenteric vessels (Fig. 115, 0.) These openings enlarge more and more as the intestine becomes more convoluted, and soon flow to- gether, severing completely the omphalo mesenteric ves- sels and duct. A portion of the duct may, however, remain in connection with the small intestine to form the diverticulum of Meckel. As the organs grow the peritoneal cavity surrounds them more or less completely, until the condition of things as seen in the adult is produced. In lower vertebrates the peritoneal cavity remains quite simple, but in reptiles, birds, and mammals it may become quite complex. Especially is this true regard- ing the birds, in which these divisions are greatly com- plicated by the growth of the air-sacs from the lungs. The first trace of the lesser peritoneal cavity is seen in the reptiles. Ravn has shown that in the lizard there are twro diverticula from the peritoneum, one on either side of the stomach. From the one on the right side the lesser peritoneal cavity of mammals arises. In general the relations of the lesser peritoneal cavity to the greater is much like what is shown in Fig. 105. In the true sense of the term there is no lesser cavity, but only the two pouches. These are already present in the embryo, and in the adult they retain their embryonic appearance. In birds the conditions become more complex. They appear in the chick during the third day of incubation. A section of the chick at this stage is given in Fig. 116, G.D., making the lesser cavities, or, as they may better be termed, the right and left gastric diverticula. At the beginning of the fourth day the gastric diverticula be- The coelomic cavities which are so intimately united with the lymphatic system, unite and again divide into sections, thus forming the various compartments of the visceral cavity of higher vertebrates. In all of the verte- brates the heart, as it is developing, hangs into the ventral transverse portion of the cavity, or the primitive pericar- dial cavity. This is shown diagrammatically in Figs. 104, 105, 106, and 107, P. Figs. 104 to 107 show the very early condition of things ; the coelomic cavities are united by the cross-piece or the Fig. 104. Fig. 105. Fig. 106. Fig. 107. Figs. 104, 105, 106, and 107.-Diagrams to Show the Development of the Coelomic Cavity. P.P., pleuro-peritoneal cavity; A.P., portion of the coelomic cavity swallowed up in the amnion; P., pericardial cavity ; L . pleural cavity; G.N., gastric diverticula, right and left; D., position of the diaphragm; L.G.D.. left gastric diverticulum ; R.G.D., right gastric diverticulum or lesser peritoneal cavity ; F. IF., foramen of Winslow ; G.P.C., greater peritoneal cavity ; T., tunica vaginalis. primitive pericardial cavity. The dotted lines (Fig. 104), mark what portion of the cavity is taken up in the am- nion (A7<), while the remaining middle portion (P.P.) becomes the pleuro-peritoneal. Figs. 105, 106 and 107 show in succession the more advanced stages. In higher vertebrates the pericardial cavity is completely closed off from the pleuro-peritoneal, but in elasmobranch fishes a communication between them exists in the adult. The separation of the pericardial cavity from the pleuro-perito- Fig. 108.-Reconstruction of a Human Embryo. (Enlarged 16 times, viewed from the left side.) P., pericardial cavity; 1, 2, 3, and 4, bran- chial pockets; A. D., descending aorta ; A.. auricle; V., ventricle ; L., lung: S., stomach ; P., pancreas; AC, mesentery ; A'., kidney: IKD., Wolffian duct ; O., openings through which the right and left perito- neal cavities communicate. neal is aided materially by the heart going over to the ventral side of the body, as shown in Fig. 108. Sections through various parts of the same embryo, from which Fig. 108 is taken, are shown in Figs. 109 to 114. In none 186 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Coelom-.. Coelom. come larger, and on tranverse section semicircular. Figs. 117 and 118 are from casts of the cavities about the stomach of a chick of eighty-eight hours. The right is larger than the left and is markedly cup-shaped, and connects by means of a narrowed opening with the right pleuro-peritoneal cavity (Fig. 117, K W.). The two together enclose the proventriculus. On ac- count of the relations of the opening of the right diverti- culum with the blood-vessels, stomach, and liver, and also for reasons which find their basis in comparative anat- (SUPPLEMENT.) space extends from behind the right gastric diverticulum along the dorsal side of this organ, and marks the begin- ning of the cavity of the great omentum (0.). Nearly the whole of the right diverticulum now lies on the left side of the body ; the same position is held by the proventric- ulus and the gizzard. The domestic fowl possesses three peritoneal cavities, completely separated from one another, and from one of them the lesser cavity arises. The communication is by means of the foramen of Winslow. After the anterior ab- Fig. 109. Fig. 110. Fig. 111. Fig. 112. Fig. 113. Fig. 114. Figs. 109-114.-Sections through an Embryo Twenty-six Days Old. (X 25 times.) 0., oesophagus ; 8, stomach ; 7., intestine; P., pancreas ; B., bile-duct; A., aorta : C., coeliac axis ; G., right gastric diverticulum ; F., foramen of Winslow ; M., mesentery ; L., liver ; P., portal vein ; U., umbilical vein ; H., heart; X., bulb of the aorta. The pleuro peritoneal cavity is colored black throughout. omy and embryology, the opening can be nothing else than the foramen of Winslow. On the left side the gastric diverticulum is much smaller, and in older embryos it disappears altogether. In a chick of five days and sixteen hours (Fig. 119) the right gastric diverticulum has about doubled all its di- mensions, while the embryonic foramen of Winslow has become much more sharply defined. At this time the liver has greatly increased in size, the right lobe being larger than the left, both lying anterior to the foramen of Winslow. The original position of the liver being behind the foramen, its rotation necessarily carries the hepatic artery and the portal vein around the foramen of Winslow -its adult position. With the growth of the gizzard a dominal walls are removed, two ventral cavities are ex- posed, separated from each other by a vertical longitudi- nal septum. Into each of the cavities hangs a lobe of the liver, while into the left the ventral surface of the gizzard projects. On the dorsal side of the liver there are, on each side, three air-sacs-an anterior, a middle, and a posterior. The middle one is the smallest, and the pos- terior the largest, extending as it does throughout the posterior portion of the abdominal cavity. Each sac communicates by means of a special opening directly into the lungs. By allowing the sacs to collapse we find that a very distinct membrane projects backward from the gizzard and cuts off the portion of the abdominal cavity containing the intestines. This is the " pseudo-epi- 187 Coelom. Contagion. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. ploon " described by Weldon and followed more exten- sively by Bedderd. A similar membrane is present in the crocodile. In all respects, this membrane is situated in the same position as is the epiploon in mammals, with (SUPPLEMENT.) upright, only one gastric diverticulum is found. It is on the right side in Figs. 109 to 114. which arc taken from a young human embryo. In each drawing the coelomic cavity is colored black and the position of the section can be made out by the organs which are cut across in the section. A cast of the' cavity is shown in Fig. 115. The portion of the cavity on the right side of the stomach and the liver is shown in Fig. 120, which is taken from a cast also. Figs. 109, 110, and 111 show sections through the gastric diverticulum of Fig. 120, Fig. Ill being through the foramen of Winslow. Fig. 115. - Corrosion Preparation of the Pleuro-peritoneal Cavity of an Embryo Twenty-six Days Old. (X 22 times.) P, pericardial cavity; A, opening for the aorta; V, opening for the vein ; L, space over the liver ; M, slit for mesentery ; W. B, space for Wolffian body. Figs. 117 and 118.-Corrosion Preparations of the Right and Left Gastric Diverti- cula of a Chick Eighty-eight Hours Old. (X 33 times.) P.P., pleuro-peritoneal cavity; R.G.D., right gastric diverticulum; L.G.D., left gastric diverticulum; L., position of lung ; F. W., foramen of Winslow. the difference that it is adherent to the abdominal walls along its free border. On the dorsal side of the gizzard the air-sacs till all the space, thus closing off the com- munication between the cavity in which the intestines lie and the ventral cavities. When the anterior and mid- dle air-sacs on the right side are separated from the posterior sac on the same side, a slit is shown which extends anterior and dor- sal to the hepatic veins. Here it communicates by means of a round opening, about one centi- metre in diameter, with a large cavity lying on the median and dorsal side of the proventriculus and extending to the spleen. The cavity does not extend on the dorsal side of the gizzard. In all respects it corresponds with the right gastric diverticu- lum of embryos and with the lesser peritoneal cavity of mam- mals. The relation of the embryonic omentum with the '' pseudo- epiploon" is as yet unknown. However, I think it probable that the one is changed into t*he other, and that the ''pseudo- epiploon " will prove to be the true epiploon homologous with the same in mammals. We must only imagine the embry- onic omentum attaching itself on the sides of the abdomen fol- lowed by a loss of the epiplobnic cavity. A subsequent growth of the air-sacs backward from the dorsal side of the stomach will produce the condition found in the adult. In mammalian embryos, while the stomach is still The general form of the cavities is shown in Fig. 120, which is taken from a reconstruction of a human em- bryo. The peritoneal cavity surrounds the Wolfflan body, intestine, omphalo-mesenteric vessels, stomach, liver, and lungs, with the addition of the right gastric diverticulum. In lower mammals, according to Ravn, there are two diverticula ; so the symmetrical arrangement of these Fig. 116. - Section through the Region of the Heart of a Chick of Seventy Hours. (X 35 times.) The section strikes the oral end of the gastric diverticulum G.D , and the tips of the pul- monary buds, Z. A few sections deeper the gastric diverticula communicate with the pleuro-peritoneal cavity. H., heart; D.C., ductus Cuvieri; B.A., bul- bils aortse. Fig. 119.-Corrosion Preparation of the Right Gastric Diverticulum from a Chick of One Hundred and Thirty-six Hours. (X 15 times). P.P., pleuro-peritoneal cavity; F. W., foramen of Winslow ; L., posi- tion of right lung ; P., position of proventriculus ; O., omental cavity (position of gizzard). cavities in reptiles is still indicated in the mammals. It is so insignificant, however, that we need not take it into consideration. The fate of the right gastric diverticulum of mammals has been studied in the dog, and it has been found that it is converted directly into the lesser peritoneal cavity, much as is shown in Figs. 106 and 107. In a dog's embryo, six millimetres long, the diverticulum is much like what it 188 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Coelom. Contagion* (SUPPLEMENT.) is in the human embryo of about the same size (h ig. 120). A dog embryo, ten millimetres long, shows a picture more advanced, much like what is seen in the chick of five days (Fig. 119). In a later stage (Fig. 121) the stom- ach has been twisted about, holding in great part the adult position. The liver, which before lay on the ventral side of the stomach, now lies in front, and to a great ex- tent on the dorsal side of it. A model of these parts from a ten-milli- metre embryo, simply rotated to throw the stomach away from the mouth, gives the condi- tion of things as they ex- ist in the embryo thir- teen millimetres long. Fig. 121 shows the lesser peritoneal cavity as a cast stuck in behind the stomach. The intestine is composed of two loops, one from the stomach, extending into the pelvis, and the omentum (Fig. 121, 0.). The general shape of the lesser peritoneal cavity is shown in transverse section in Fig. 122, which can be compared with Fig. 111. The S-shaped loop of intestine is cut across three times, and the lesser peritoneal cavity with the foramen of Winslow is shown throughout its whole extent. The omentum from now on rapidly grows over the whole ventral wall of the abdominal cavity, and in man adheres to the colon as first described by Meckel. A resume of the subject is given in Figs. 104 to 107. Franklin P. Mall. COLBERG. An important watering-place in Pome- rania, Germany, near the Baltic Sea. It is also a seaside resort. Access.-Colberg is a railroad station, and can be readily reached from any European city. Analysis.-The waters of Colberg are saline, and are chiefly used for brine baths, although they are also ad- ministered internally after dilution with carbonated water. The principal springs are the Zillerbergsoole, Marktsoole, and Salinensoole. In 1,000 parts of Salinensoole there are contained: Chloride of sodium 48.63 parts. Chloride of calcium 4.37 " Chloride of magnesium 2.18 " Sodium bromide 0.04 part. Carbonate of iron 0.08 " Indications.-The place is much frequented owing to the advantages it possesses for sea-batning, alternating or combined with a course of brine baths. It has been found beneficial in cases of scrofula, anaemia, tedious convalescence after acute diseases, and neurasthenia. Female complaints are successfully treated at Colberg. Accommodation.-Good hotels and modern bathing establishments are found here. Edmund C. Wendt. CONTAGION. The progress of knowledge of the spreading diseases, in the past six or seven years, has en- larged the sphere of contagion as a factor, and in like de- gree has diminished that of heredity. (See article on He- redity, in this volume.) At the same time the agency of bacteria in their dissemination has gained greatly in importance with increased research. Under the present title, in Vol. II. of the Handbook, allusion was made to the ptomaines in connection with bacteria. The study of the animal alkaloids has been actively pursued by the German pathologists, with refer- ence to their origin, development, and agency in disease. They are distinguished as ptomaines when they attend fermentation or putrefaction of a dead animal body, and leucomaines when found in living tissues. They result from retrograde metamorphosis, and resemble in com- position and character the vegetable alkaloids. The al- leged alkaloid of tetanus, for example, has the formula CuHaoNaOi. They are highly unstable compounds in a chemical sense, and consequently difficult to manipulate. Some are toxic ; others not so ; most are acrid. They are to be regarded as the consequence, but never the cause, of bacteria; and there is good reason to suppose that path- ogenic bacteria largely operate through these secondary products. Brieger and Frankel (1890) have obtained a ptomaine from the bacillus of diphtheria, which produced in the animals experimented on precisely the same symptoms which follow inoculation with pure cultures of the same bacillus. Its activity was destroyed by a heat of 140° F. Brieger gives a list of the animal alkaloids iso- lated up to 1889, amounting to forty-one in all. Wurg has demonstrated (1889) the presence of leucomaines in normal blood, and further researches may prove them to be habitually present. Obviously they are not patho- genic, but experiment might show them to be transfera- ble from one healthy individual to another by appropriate culture and inoculation. 8. 8. Herrick. Fig. 120.-Corrosion Preparation of the Gastric Diverticulum of a Hu- man Embryo, 7 mm. long. (X 35 times.) P.P.^ pleuro-peritoneal cavity; F. W., foramen of Win- slow ; G.D., gastric diverticulum. Fig. 121.-Corrosion Preparation of the stomach, Intestines, and Lesser Peritoneal Cavity of a Dog, 13.5 mm. long, Viewed from the Left Side. (X 15 times.) The lesser peritoneal cavity has been filled with metal. B.D., bile-duct; pancreas; C., caecum; O., omentum; F.W., foramen of Winslow ; L.8., position of lobus Spigelii. other from the ctecum into the umbilical cord. The rapid growth of the large intestine has thrown the caecum as high as the stomach and to the right of it. The fold Fig. 122.-Section through the Foramen of Winslow and Lobus Spigelii of a Dog, 13.5 mm. long. (X 36 times.) A., aorta ; A, stomach ; P., portal vain ; V., umbilical vein ; L.S., lobus Spigelii; O., omental cavity ; L.T., large intestine. of mesogastrium coming from the dorsal side of the stomach passes, over the large intestine to form the 189 Contrexeville. Cranial Nerves. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) CONTREXEVILLE. This spa, being the most impor- tant one of the group in the Vosges district, and being now frequented by many English-speaking invalids, it may be well to give some additional information concerning it. .(See also Vol. II. of the Handbook.) That the waters are the chief point of attraction is not doubted, although the pure invigorating air, the pleasing scenery, as well as the good walks and drives, all con- tribute to make the place popular and even fashionable. The new railroad has brought Contrexeville to within an eight hours' ride from Paris. Large sums of money have been recently spent upon the thermal establishments, which are now modern and complete in every detail. Although the Source du Pavilion is the spring most generally employed, there are six other springs, all of .tried efficacy in the particular line of maladies here treated. The Source le Clerc, Source du Prince, Sources Mongeot, and Source du Quai, deserve to be mentioned. All these waters are diuretic, aperient, and at the same time tonic. They disturb the stomach less than the more highly min- eralized springs, and have been named "amisde I'estomac," in consequence. A statistical table published by Dr. Debout d'Estrees show's that of every hundred patients visiting Contrexeville, on an average thirty-seven suffer from gravel (uric acid, oxalic, or phosphatic), twenty-two from gout, nineteen from vesical catarrh, cystitis, etc., nineteen from gouty diabetes, seven from hepatic colic, and the remaining ten from other chronic diseases of the kidneys, the bladder, the liver, or the stomach (Wolff : " The Watering-places of the Vosges ''). The waters of this spa are taken in larger quantities ■than at the resorts having stronger springs. Patients at Contrexeville are at times directed to take as much as twenty-five glasses a day, which produces a veritable in- ternal Hushing. Mr. Wolff summarizes the rules for drinking in this way : "You rise early, to dispose of the prescribed quantity of liquid in good time and with req- uisite ease. Five or six o'clock sees all the little bathing world assembled round the bubbling spring attractively housed in a neat and roomy pavilion. You drink your tumbler and then take a quarter of an hour's walk-that or thereabouts. Then comes another glass-another w'alk, and so on. For rainy weather the administration has ■provided convenient covered walks, sheltered by trans- parent walls and roofs of glass. In fine weather there 4S the well-kept little " park," with its gravel walks and its tastefully laid-out turf, and bosquets, and shrubs." After lunch comes exercise, then perhaps a bath or a ■moderate potation. Another walk, or lounge, fills up the -afternoon, and then comes the six o'clock dinner. In the evening the ordinary amusements are provided, and everybody retires at an early hour. It is in the strict en- forcement of regular habits and a suitable regime that the European spas excel our own, and for this reason the therapeutic results seem so much better there. Mr. Wolff notes that the first effect of the water, which is readily assimilated, is to stimulate generally all animal functions. There is a notable acceleration of both pulse •and respiration, and a marked diuretic action. All this is not unpleasant. But after a period, in most cases after -about a fortnight, but sometimes much sooner, comes the " crisis," rather a trying ordeal. It does not as a rule last beyond from one to three days. Whatever its dura- tion, it makes the patient most decidedly uncomfortable. In regard to hotel accommodation and lodgings, Con- trexeville is now on a level with the better class of ^French resorts. The season lasts from the middle of May to September. Edmund C. Wendt. CONVALLAMARIN. This glucoside is recommended to replace the other preparations of convallaria majalis, as its dose is more definite and its action more certain and prompt. It possesses all the desired properties as a heart tonic, and is devoid of any irritant action on the bowels and stomach. Convallarin, the other principle of the plant, contains the irritant properties and has been employed for its purgative action. Convallamarin, the chemical composition of which is C23H44O12, is a whitish, bitter, amorphous powder, soluble in water and alcohol. Its dose is from one-half to one grain, to be cau- tiously increased. When administered its action is di- rected to the muscular structure of the heart ; it renders its action more slow by prolonging the period of dias- tole, which period of rest is followed by a forcible con- traction and more thorough emptying of the cavities. When death is produced the heart is arrested in systole. As a cardiac tonic it proves of greatest service in cases where there is a failure of circulation due to organic heart disease ; it is indicated where the arterial pressure is reduced, the veins full, and the right side of the heart and lungs are engorged. By the more forcible contrac- tions which its use produces the arteries are filled and the equilibrium of the circulation regained. Where the heart trouble is far advanced, with extreme dilatation and loss of muscular power, the remedy must be given cautiously and its action carefully watched, as the ex- hausted heart may not be able to maintain the increased effort. The drug is excreted by the kidneys, and at the same time it exerts a direct diuretic action which is sup- plemented by the increased tension in the vessels, which must also be attributed to the action of the drug. Its ad- vantage over digitalis as a diuretic is its promptness of action, in which it resembles caffeine, and probably it occupies a position intermediate between the two. Al- though very much praised, it does not prove as efficient in cardiac therapeutics as digitalis, and in no sense super- sedes the more used drug; it, however, often proves of value to replace digitalis when it has been given for a pro- longed period, and may always be given when digitalis has failed or for other reasons cannot be administered. Beaumont Small. CORFU. The most important of the Ionian Islands (Greece), and a popular winter health-resort. Corfu can be reached by way of Trieste in fifty-three hours, and from Brindisi, Italy, in twelve hours. The steamers are moderately comfortable. The climate of Corfu may be considered as typical of the whole group of Ionian Islands. It is a warm place, having a mean annual temperature of 65° F. But the winter months, which represent the invalids' season, average 53° F. Corfu has a moist, marine climate, although when the wind blows from the north extreme dryness may be the temporary result. Rain falls in almost every month, but during the seven cooler months only eighty rainy days occur on an aver- age. The capital (26,000 inhabitants) of the island is also called Corfu. It is well sheltered. According to Brad- shaw': "The bay is open to the full south and south- east winds, and consequently well protected against all northerly winds. The Bora is not felt here. Northwest and northeast winds are tolerably frequent, though the latter are objectionable only as being cold. The atmos- phere is never stagnant, owing to a sea-breeze which blows up to three o'clock, after which the land-breeze sets in. Rapid atmospheric disturbances, such as are met with on the Riviera, occur but seldom, and there is almost complete immunity from dust and high winds. " The climate, though warm, is bracing. At the end of January and in February hyacinths, roses, and almond trees begin to blossom. By March, spring has set in, and in April cherries are ripening. The temperature rarely falls to freezing-point, and still more rarely below' it. Fogs occasionally occur and last some time. " The town itself offers many attractions. It is a link between the East and the West. Its streets are very live- ly. Close to the town on a small hill is a villa belonging to the King of Greece. The esplanade and the Strada Nuova are the centre of Corfu life. The environs are mostly covered with olive groves. The interior of the island offers a fine field for excursions and sports. Naples has been called the El Dorado of Hypochondriacs, and Corfu may claim the same honor. The drinking-water and the means of communication are excellent." The class of cases sent to Corfu comprises many mor- bid states, and many tourists of the semi-invalid class spend more or less time there. Scrofula, chloro-ansemia, neurasthenia, protracted convalescence after severe ill- 190 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Contrex6 ville. Cranial Nerves. ness, catarrhal affections of the upper air-passages, dys- pepsia, gout, and incipient phthisis are all said to be benefited by a winter residence on this pretty island. There are fair hotel accommodations at moderate prices, postal and telegraph facilities, an English church, etc. The Hotel St. George is one of the principal ■establishments. Edmund C. Wendt. CRANIAL AND SPINAL NERVES. The account of the development of the cranial and spinal nerves given in a previous volume of the Handbook must now be considerably enlarged by reason of recent discoveries. It is well known that the first trace of the nervous system is the formation, in the middle of the blastodermic area, of a longitudinal band of cells called the medullary plate; and that this plate, by the inversion of its edges caused by cell proliferation, is converted first into a groove, the medullary or neural groove, and afterward into a canal, the neural canal. The epithelium forming the inner wall of the tube is, of course, derived from the ectoderm. Its cells show, even at an early stage when ■composed of but a single layer, a differenti- ation into two kinds that differ in shape, func- tion, and subsequent history. One form, the spongioblast of His, is columnar, with oval nuclei, is passive in character, and constitutes the sustentacular portion of the tissue ; the other, the germ-cell of His, is round, with a large nucleus which usually has kary- okinetic figures indicating rapid proliferation, and is evidently more active in character. (See Fig. 123.) The cell-body of the spongioblast soon differentiates into two distinct substances, a clear, hyaloplasmic, non-stainable por- tion, probably of fluid consistency, and a dark, metaplasmic portion that is readily stained and becomes arranged in a re- ticular manner. This latter at first ex- tends throughout the entire cell-body, but finally disappears at one end, and a columnar process is formed by the appo- sition of the walls of two contiguous cells, while at the other the basket-like reticulum remains. (See Fig. 124, A.) At the ends of the columns the original boundaries of the cell remain defined by a ring of metaplasm, and a section parallel to the surface shows a flat sheet of lace-like net-work. (See Fig. 124, B.) Sooner or later the hyal- oplasmic material disappears, leaving the nuclei with the columns stretch- ing toward the free inner or ventricu- lar surface of the medullary canal and the basket-work forming the external boundary of the original plate. (See Fig. 124, U.) This external boundary or reticulum becomes important, as it limits the migration of the active ele- ments hereafter to be described. It is accordingly called by His the " border veil," for which Hill has proposed the equivalent term, velum confine. By means of this arrangement of the spongioblasts there is laid down a trabecular framework with the trabeculae disposed radially about the ventricular cavity of the neu- ral tube. The system is termed the myelospongium, and is afterward developed into the neuroglia, which is, therefore, a purely ectodermic tissue correlative with the other nerve-elements, and not, as was formerly supposed. (SUPPLEMENT.) a mesodermic or true connective tissue. At an early stage the trabeculae appear to anastomose. (See Fig. 125.) This is due to the adherence of the metaplasmic walls of contiguous cells. Origin of Nerve-cells and Nerve-fibres.-Even when Fig. 124.-Details of the Spongioblasts. A, spongioblast in which the reticulum is forming at one end while the other has become columnar. B, arrangement of the inner ends of the spongioblasts to form the membrana limitans. Surface view. C, radial arrangement of the spongioblasts ; a, membrana limitans ; 6, columnar layer; c, nuclear layer ; d, velum confine. After His. the epithelium of the medullary plate is constituted by only a single layer, there are found here and there among the columnar cells the round-celled elements ■which have already been referred to as germ-cells. They occur in varying numbers, sometimes diffused at considerable in- tervals, sometimes quite closely packed. In the region of the neck they develop earlier than elsewhere. It is not yet known whether they develop from the spongioblasts, or exactly by what steps both are derived from the com- mon, embryonic, ectodermal cells. They are found at first Fig. 123.- Ecto- derm from the Medullary Plate of the Rabbit. A, A, supporting epithelial cells or spongiobl a s t s ; B, ger m - c e 11. After His. Fig. 125.-Formation of Neuroglia. Section from the spinal cord of a human embryo of about three and a half weeks, l.m, membrana limitans; N, germ-cell; ngl, neuroglia ceils; Ruch, velum confine. After His. in the so-called germinal area of the medullary tube, that is to say, quite near the ventricle or lumen of the tube, be- tween the rod-like processes of the spongioblasts (see Fig. 126, (r), or in rare cases extruding through the meshes of the membrana limitans and projecting into the ventri- cle. Soon these cells begin to grow. At first spherical, they 191 Cranial and Spinal Nerves. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. become pointed and then pear-shaped, lengthening out into a conical process. They are then called neuroblatts, as they are the primitive nerve-cells, and the process is the beginning of a nerve-fibre. (See Fig. 126, N.) At this period they are evidently movable, as they migrate from the situation where first found, near the membrana limi- tans, and pass outward, following the radial interspaces of the spongioplasm, to become collected near the velum confine in a sheet, known as the mantle layer, which be- comes the foundation of the gray matter of the cord. The (SUPPLEMENT.) formation of nerves, is now called the nerve process (axis cylinder process of Deiters), may, as already stated, pass out to become a constituent element of the anterior or Posterior Root. Ganglion. Anterior Root. Fig. 126.-Development of Neuroblasts. From a section of the medulla oblongata of a human embryo. G, germ-cell; y, neuroblast; ngl, neuroglia cell. After His. Fig. 128.-The Formation of the Nerve-roots. Section through the spi- nal cord of a human embryo. The condition of the anterior root corresponds to the development at the fourth week, that of the pos- terior to about four and a half weeks. Combined by Edinger from representations by His. • processes have now become striated and extend for a con- siderable distance peripherally. (See Fig. 127,/,/'.) At the end of each growing process a slight enlarge- ment occurs, and upon this there may be seen minute ele- vations or papillae. The enlargement is called by Ramon y Cajal the cone of growth. The direction which these primitive fibres take differs somewhat in different regions of the cord. In the dorsal half the nerve processes turn so as to run vertically along the velum confine and paral- lel to the surface ; in the ventral half they proceed directly outward, pierce the velum confine in compact bundles, and become the anterior or ventral roots of the spinal nerves. (See Fig. 128.) The rounded head of the neuroblast usually undergoes motor root of the spinal nerves. It passes to the pe- riphery and there becomes associated with the muscular elements. Afterward the process becomes provided with a medullary sheath derived from the connective tis- sue of the mesoblast, the process itself being the axis cylinder of the nerve-fibre. Thus we see that we must no longer consider the fibres of the nervous system as elements distinct from the cells with which they are con- nected, but rather as integral parts of such cells. In the adult human body the cells of the anterior horn of the spinal cord send prolongations to the extremities of the Fig. 127.-Neuroblasts forming Nerve-roots. Section from the spinal cord of an embryo cat. N, neuroblasts; f.f, their processes combin- ing in bundles to form the anterior roots of the spinal nerves. After His. a further modification. Around its circumference small buds begin to appear which push outward in the same manner as the primitive process did, and develop into the so-called protoplasmic or dendritic processes of the nerve-cells. These are seen therefore to be of precisely the same character as the others, only differing in the time of their development. Lenhossek has shown, by observations upon the earthworm (Lumbricus), that there is originally no morphological difference between these processes. All the processes are dendritic in this animal, one set passing out to communicate with the periphery, another to convey impulses to other cells. The primitive process which, because it assists in the Fig. 129.-The Formation of the Neural Greet. Sections through the cer- vical region of a human embryo of 14 to 16 days. Ec, ectoderm ; mes, mesoderm ; Gl, beginning of the spinal ganglion, first known as the neural crest; nul, medullary plate. After Lenhossek. limbs. The growth of the nerve-process is at first quite rapid, but afterward decreases. It seems at first difficult to understand how these pro- cesses can pass from the spinal cord and traverse so un- erringly such a vast extent of the body (comparatively 192 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Cranial and Spinal Nerves. speaking), and arrive at their destination in the group of muscle-cells to which they belong. Yet it should be re- membered that the distance traversed is, at the stage of embryonic life at which this growth occurs, but a few cen- timetres at most ; and further, it is noticed that the neu- roblasts have a tendency to unite together in groups, sending out their processes together as a single bundle (see Fig. 127) which appears to be directed to a correspond- ing bundle of muscle-fibres, so that an exact adjustment of each neuroblast to a special myoblast does not appear to be necessary, the adjustment taking place rather be- tween the grosser elements formed by the separate groups. It is not impossible that in this group-like ar- rangement of the primitive elements there may yet be found the key to a true morphological arrangement and classification of the muscles. It will be noted that the foregoing account relates only to the origin of the anterior roots. The development of the posterior roots is no less instructive. In Fig. 129 there are shown sections across the inedul- (SUPPLEMENT.) cells of the neural crest assume a spindle shape before they become detached from the medullary canal. They are then termed ganglioblasts (Lenhossek). The ends of the spindle finally lengthen out into processes running in opposite directions, and a bipolar cell results. (See Fig. 130, also A of Fig. 132.) In these cells the oval nucleus is placed to one side, so that the fibres run directly through opposite to each Fig. 131.-The Stages of Unipolarization of Ganglion Cells. (Lenhossek.) A, oppositipolar cells; R, geminipolar cells; C, unipolar cells. other. The cells have accordingly been termed oppositipo- lar (Courvoisier). They resemble greatly at this stage the cells found in the ganglia of most adult fishes. The con- dition remains permanent in man only upon the ganglia connected with the auditory nerve, viz., the ganglion of Scarpa, found upon the vestibular nerve within the in- ternal auditory meatus, near its origin from the auditory, and the ganglion spirale, found upon the cochlear nerve within the walls of the cochlea. In other situations the processes change their relations to the cell-body, for the axis of the ganglion being more and more invaded by nerve-fibres, the cells are pushed to the sides and the pro- cesses are so displaced as to be given off close together from one side of the cell, which is then called geminipolar. Fin- ally the processes unite to form a single one, and the cell is then unipolar, the cell-body standing at some distance from an appar- ently continuous fibre attached as by a pedicle. The stages of the process are shown in the an- nexed diagram, Fig. 131. It seems unlikely that this modification in the arrangement of the processes of the cell should make any material dif- ference in its functions. The evidence that we have in regard to the functions of cells shows that the principal seat of activity is in the central protoplasmic mass, and especially in the nu- cleus of that mass. It seems, therefore, almost certain that the influences received from the periphery must travel up to the body of a unipolar cell, and thence out again toward the cord. The appearance of the adult ganglion-cell is shown in Fig. 132, B, where it is contrasted with the earlier form. The bi- furcating fibres characteristic of these cells are known as the T fibres of Ranvier. From a morphological point of view ganglioblasts may be regarded as cells of special sense, formerly situated at the periphery of the body, and now withdrawn to the edges of the medullary plate. In invertebrate animals, as, for example, in lumbricus (Lenhossek), such cells ex- ist at the periphery and receive impulses like other sen- sory cells upon special collecting processes situated im- mediately under the epidermis. These impulses they transmit to the central nervous system by means of a Fig. 130.-Ganglioblasts. Group of cells from the spinal ganglion of a human embryo. After His. lary groove taken at different nerve-levels. At A the groove is widely open, the ectoderm exterior to it is seen as a thin layer which becomes thicker by the addition of some spherical cells, Gl, just at the edge of the groove. At B we see the groove nearly closed, and at C the closure completed. The spherical cells have united on the mid- dle line to form a longitudinal band known as the neural crest. This at first occupies a median position and shares the segmentation which, though but slightly shown in the cord, is well marked in all accessories belonging to the nerves. It then becomes displaced on either side to form the ganglia situated on the posterior roots of the spinal nerves. It will thus be seen that the spinal ganglia are not, as they seem, integral parts of the nerves exterior to the cord, but detached portions of the original medullary plate, and should be regarded as displaced segments of the spinal cord. Therefore their cellular elements may well be of the same general nature. This is found to be actually the case. The rounded Fig. 132.-Cells from Spinal Ganglion. A, from hu- man embryo of four and a half weeks ; B, from an adult rabbit; ax, axis cylinder; M, nuclei of the medullary sheath ; R, node of Ranvier. After His and Schiefferdecker. 193 Cranlal and Spinal Nerves. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. fibre. Such cells agree in general form with those of the anterior horn of the spinal cord, the collecting processes of the one corresponding to the dendritic processes of the other. When the cells are withdrawn to a more central situation, the connection with the collecting processes is made by a lengthened, secondary fibre, which becomes the peripheral pole of a bipolar cell. Other matters con- nected with the development of the ganglia of the cranial nerves tend to show that the ganglia may properly be considered as sense organs that have been withdrawn from the surface. Thus it is found that both the anterior and posterior nerve-roots are formed of processes of cells situated, for the anterior roots, within the gray matter of the spinal cord, for the posterior roots, within the spinal ganglia. This discovery is due almost entirely to the researches of His. It strildngly confirms the results obtained by section of the nerve-roots. . It is well known that if the anterior root is cut the nerve-fibres degenerate from the section toward the periphery of the body, and that if the posterior root is cut between the ganglion and the cord the fibres do not degenerate, while if cut beyond the gan- glion the fibres affected are speedily destroyed. (See Fig. 133.) This was formerly ascribed to a supposed " trophic in- (SUPPLEMENT.) change these names. The first class are now known as dendritic processes, the second as nerve-processes. Gerlach, in his excellent article on the spinal cord, pub- lished in Stricker's " Handbook of Histology " (1871-72), attempted to show that all cells are not provided with nerve-processes, that those so characterized are typically represented in the anterior horn of the spinal cord, and are probably motor, as they appear to be connected with the motor roots of the nerves, that the cells not so char- acterized are found in large numbers in the posterior horn of the spinal cord, and that their dendritic processes are united together to form a fine reticulum with which he believed the posterior roots to connect. This, there- fore, was characteristic of the sensory nerves. Gerlach's views have prevailed until quite recent times, his " reti- cular formation " being mentioned as an anatomical fact in text-books now in general use, as for instance, Macal- ister's "Human Anatomy," 1889, and in Obersteiner's " Anatomy of the Central Nervous Organs," translated by Hill, 1890. It is not at all surprising that those views should be held when the technical methods in use are considered. Every advance in histology has been heralded by some improvement in microscopic or in technical manipulation, and it is not always realized that our knowledge of mi- nute anatomy is so recent. Schwann's researches on cells FIG. 133.-Deg< aeration of Nerve-fibres after Section. A, section of entire trunk beyond ganglion; B, section of anterior root; C, section of pos- terior root (a few fibres are shown as degenerating beyond the section) ; I), excision of ganglion. fluence" which was thought to reside in the anterior horn of the spinal cord for the anterior roots, and in the spinal ganglion for the posterior roots. Since it is recog- nized that we are merely cutting off cell-processes, the results become intelligible. Central Connections of Cells and Fibres.-The investi- gation of the central organs has long been singularly un- satisfactory from an anatomical point of view. The ganglion-cells in the spinal cord were first discovered by Ehrenberg in 1833, and described by Valentin in 1836. Those in the brain were discovered by Purkinje in 1838. In the same year Remak noticed that some processes of cells in the sympathetic nervous system appeared to be continuous with medullated nerve-fibres. Kolliker first noticed that such fibres arise from the unipolar cells of spinal ganglia. That these cells are usually bipolar in fishes was noticed in 1847 by several observers, inde- pendently, viz., Bidder and Reichert, Charles Robin, and R. Wagner. In 1851 Wagner, in examining the electrical organ of the torpedo, noticed that but one, or at most two, of the processes of the nerve-cells were con- nected with nerve-fibres. This was verified by Remak in the spinal cord of the ox in 1854. Special attention to these facts was, however, first drawn by Deiters in 1865, who noted that the greater number of the processes of the nerve-cells are short and break up immediately into fine arborescent forms that he called " protoplasmic " pro- cesses, but that among the others there was frequently found one that appeared to run without division. This he assumed to be continuous with the axis cylinder of a nerve-fibre, and therefore called it the axis-cylinder pro- cess. Recent discoveries have made it advisable to were not published until 1839, it was not until 1842 that Stilling invented the method of cutting thin sections in series, Gerlach first stained tissues in 1858. The wide extension of this method is now well known. The preparations by which Gerlach sustained his views ■were prepared with the greatest care and are marvels of patient skill. He admitted, however, that he had never been able to trace a nerve-process into a nerve-fibre, nor had he actually demonstrated the connection of nerve- fibres with the plexus of dendritic processes. The con- nections of the fibres rested therefore upon hypothesis rather than upon any actual anatomical demonstration. The special obstacle in the way of progress was the great complexity of the interlacing fibres and pro- cesses that made it absolutely impossible to follow the connections of the cells for any distance. It seemed of no use to further pursue the subject by this method. This being the case, attempts were made to obtain fur- ther knowledge of the connections of the cells by their behavior under pathological and embryological condi- tions. Waller, in 1852, discovered that when a nerve was cut its peripheral end degenerated. It was soon sur- mised that this same law governed certain degenerations found in lesions of the spinal cord and other portions of the central nervous system ; and since the researches of His it is definitely known that degeneration occurs along the entire course of a nerve-fibre when it is severed from the cell from which it originally grew. Ample illustra- tion of this is shown in Fig. 133. Since degenerated fibres can be readily distinguished in serial sections, it became possible to investigate the course of fibres or groups of 194 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Cranial and Spinal Nerves. (SUPPLEMENT.) fibres by means of experimental lesions made in different portions of the spinal cord. By observing degenerations, whether artificially pro- duced or the result of pathological processes, it was soon found that the central connections of the cranial and spinal nerves were not arbitrarily arranged, but that they followed a certain definite plan. A knowledge of this was often assisted by the study of malformations in which special tracts of the central nervous system were found to be wanting. Another discovery also greatly aided investigation. In the early embryo the only nerve-fibres found are those of the non-medullated variety, the myelin being afterward added. Flechsig (1872-76) found that this process of mye- lination does not occur at the same time in all parts of the nervous system, but seems to follow certain definite laws. Certain of the tracts already made out by the study of degenerations were found to myelinate at a dif- not to send fibres to the root of the same side, but to com- municate through the anterior gray commissure with the anterior root of the opposite side. The fibres of the posterior root were not considered to be connected with cells, but rather with the plexus of Gerlach. An exception was made, however, with regard to certain cells found in the column of Clarke, each of which was believed to have two processes, by one of which it was connected with the fibres of the posterior column. It was, however, acknowledged that many of the fibres of the posterior root did not enter the plexus at all: some turned inward and upward passing toward the brain, first in the column of Burdach, then in the column of Goll ; others passed into the lateral column where their subsequent course was unknown. The idea generally prevailed that the transmission of nervous impulses could only be explained by assuming a continuity of structure. The fibres and the cells must Fig. 134.-Former Theory of the Connections of the Nerve-roots with the Spinal Cord. A, unipolar cell of the spinal ganglion sending process to the column of Burdach ; B, same sending process to lateral column ; C, same ending in Gerlach's plexus of the posterior horn ; D, fibre of posterior root passing to a bipolar cell in the column of Clarke ; E, the other process of the same cell passing to the cerebellar lateral tract; F, large motor cell of the anterior horn ending in a nerve-process G, that passes into the anterior root; H, nerve-process from a cell of the anterior horn of the other side of the cord that passes through the anterior gray commissure : I, K, cells that form the plexus of Gerlach by anastomoses of their den- dritic processes ; L, nerve-process from one of these cells passing to the anterior root. ferent period from others, and thus their connections could be made out, confirming and amplifying the data already obtained. It would be beyond the scope of this article to give a complete account of the researches made under these dif- ferent heads. It will be necessary, however, to give a short summary of the principal results obtained with re- gard to the central connections of the cranial and spinal nerves at the date of the publication of the Handbook in order to make intelligible the recent discoveries. (See Fig. 134.) In the gray matter of the cord certain rather ill-defined clusters of cells were made out which were thought to have certain definite, relations to the nerve-roots. The anterior or motor root was composed of fibres arising from cells in ihe anterior and lateral horns. Those in the anterior horns are in three groups, described by Wal- deyer as the antero-medial, antero lateral, and postero- medial. The large cells of the lateral horn are considered by themselves and termed by Waldeyer the postero- lateral group. The postero-medial group was believed be continuous with other fibres and cells in order to pro- duce the so-called nerve-paths by which these impulses travelled. Thus the ordinary reflex acts which physiol- ogists found to occur within the spinal cord were be- lieved to be produced by the transmission of sensations through the posterior roots to the plexus of Gerlach, from which they were transferred either to a motor cell or to nerve-fibres formed by the union of the fibrillae of the plexus. The act was thus made clear and intelligible. It did not, however, rest upon any actual demonstra- tion. A short notice should be given to the views which have been advanced by Gaskell upon the nature of cranial and spinal nerves. On section of a nerve stained with osmic acid, it is noticed that the fibres involved are by no means all of the same calibre, or provided with the same thickness of medullary sheath. Nerves that supply the voluntary muscles appear to have a large proportion of large, dark- bordered fibres, while those supplying involuntary mus- cles and viscera have a great majority of small, fine me- 195 Cranial and Spinal Nerves. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) dullated, or so-called "leucenteric" fibres. (See Fig. 135.) Gaskell showed that these leucenteric fibres pass out of the spinal cord at certain definite levels, corresponding to cury, and then placing it in a silver solution. After suit- able maceration in this it is found that a fine deposit occurs along every nerve-fibril, distinctly marking it out. This deposit is probably a chromate or chloride of silver precipitated in exceedingly-delicate crystals. The prep- aration of material by this method is by no means easy. It must be perfectly fresh ; the solution must be of a certain definite strength ; the exposure is long, weeks and even months being required for some results, and cer- tain precautions in handling and keeping are absolutely necessary. The section must be mounted in Canada bal- sam without a cover glass. The results obtained are truly astonishing. For the first time every detail of the cell-processes is clearly made out, marked with the precision of a line of black upon a white page. It is no longer necessary to deal with nerve- cells that have been mutilated and displaced from their natural connections by teasing, their processes appearing C and D Ascending Ascend- ing V Fig. 135. - Sections across Parts of the Roots of Various Nerves of the Dog, to show the Variations in Size of their Constituent Fibres (Gaskell). The nerves were stained with osmic acid and the sections are all drawn to one scale. A, from one of the upper roots of the spinal accessory ; B, a rootlet of the hypoglossal ; C, from the first cervical anterior root; D, from the second thoracic anterior root. Vaso motor. the exit of the fibres going to the splanchnic nerves and other trunks of the sympathetic nervous system. He thus divided the nerve-fibres into two classes, the somatic, supplying the somatopleuric portion of the mesoderm, and the splanchnic, supplying the splanchnopleuric por- tion. These he again separates into efferent and affe- rent subdivisions. He also assigned to certain definite cell-groups in the spinal cord the function of presiding over these separate nerve-fibres. The somatic efferent nerves he connected with the large cells of the anterior horn; the splanchnic efferent with those of Clarke's column ; the cells of the lateral horn with the solitary cells at the base of the pos- terior horn. No special groups for cells are assigned to the efferent nerves. He considers that in the system of cranial nerves certain of these groups have a tendency to break up and form special nerve-strands. His application of the theory will be seen on examining Figs. 137 and 138. To an Italian anatomist, Camillo Golgi, of Pavia, is due the discovery of methods of staining nerve-fibres which has led to most important practical advances in our knowledge. This is essentially an impregnation of the tissue with either a chromic salt or bichloride of mer- Fig. 137.-Schematic Cross-section of the Medulla Oblongata. (Gaskell.) A, cells corresponding to those of anterior horn ; B, cells correspond- ing to those of lateral group of anterior horn ; C, cells corresponding to Clarke's column ; D, cells corresponding to the solitary cells at base of posterior horn ; E, cells corresponding to those of lateral horn ; a, somatic efferent fibres ; b, somatic afferent fibres; c, splanchnic non- ganglionic efferent fibres ; d, splanchnic ganglionated efferent fibres ; e, splanchnic afferent fibres. as bare stumps, and all fine details of structure swept away. Another advantage is that, for some reason not yet clearly understood, certain cells of the section stain sooner than others, so that by adjusting the time of maceration it is possible to obtain only a few cells stained at a time, and thus to follow out the complicated ramifi- cations of a single cell without having it confused by the details of the other cells in its immediate neighborhood. By varying the procedure slightly it is possible to stain the neuroglia without affecting the other elements. Golgi was at once able to settle definitely certain im- portant matters. The connections of the nerve-roots be- came no longer matters of surmise and hypothesis, but reached the realm of actual ocular demonstrat ion. He was able to show that the prevalent theory with refer- ence to the cell-processes was incorrect. Not only do all nerve-cells possess a nerve-process-that process invari- ably branches at a greater or less distance from the cell. It can, however, be distinguished from the den- dritic processes by its manner of branching and its comparatively simple course. There exist two types of cells, dis- tinguished by the behavior of their nerve-processes: First, those in which the nerve-processes preserve their in- tegrity for a considerable distance, always giving off, however, some col- laterals, passing finally into a nerve- fibre and breaking up at its termina- tion ; 2d, those in which the nerve- process after a short course divides and subdivides within the gray sub- stance of the nervous centres, form- Fig. 136.-Cross-section of the Spinal Cord, to show Gaskell's Views. (Hans Gadow.) A, cells of posterior horn : B, cells of Clarke's column; C, cells of the lateral horn ; D, cells of an- terior horn ; E, solitary cells at base of posterior horn; a, somatic afferent fibres; b, splanchnic ganglionated efferent fibres ; c, splanchnic non-ganglionated efferent fibres for visceral and enteric muscles ; d, somatic efferent fibres ; e, splanchnic afferent fibres. 196 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Cranial and Spinal Nerves, ing thus the plexiform arrangement described by Gerlach. The nerve-processes of these cells never contribute to the formation of nerve-fibres. (See Fig. 139.) Golgi was not able to fully disembarrass himself of the old ideas with regard to the anatomy of the nerve- centres. As the cells with long nerve-processes are found (SUPPLEMENT.) of a single specimen. Then, too, it is found that the em- bryonic tissues are particularly susceptible to this method of investigation. In studying by the new method the cerebellum of the embryo of birds and mammals, Ramon y Cajal arrived at certain conclusions with reference to the nature and re- lations of nerve-cells that were considerably at variance with the scheme of Golgi, and which profoundly affected the whole question of the structure of the nervous sys- Fig. 138.-Diagram of the Arrangement of the Cranial Nerves. (Gaskell.) mostly within the anterior horn of the cord, he concluded that they must necessarily be motor cells. He also as- sumed that the great part of the cells of the second type, that is to say, those with short nerve-processes, were to be found in the posterior horn, and must therefore be con- sidered as sensory cells. In fact, his view differed but very slightly from that of Gerlach, as will be seen by contrasting the two diagrams in Fig. 140. The difference was merely one which affected the processes by whose ramification the plexus was made up. While Gerlach assigned this rile to the dendritic processes, Golgi con- sidered that it was effected by the collateral branches of tem. Continuing Ins observations to tne investigation oi the spinal cord, he was able to show, first, that the nerve- cells are entirely independent, and never anastomose either by their dendritic or by their nerve-processes ; 2d, that every nerve-process, whether long or short, ends either simply or by ramifications which may either be within the motorial end-plate of a muscle-fibre, as in the cells of Golgi's type I., or in protoplasmic expansions in contact witli the body or processes of other cells; 3d, that these latter establish by contact alone communi- cations as effectual for the transmission of impulses as the continuity of structure formerly supposed to exist; 4th, that the dendritic processes of cells are probably also conducting elements, and not merely for the purpose of imbibing nutriment, as heretofore thought. Anastomosis of the processes of one nerve- cell with another is absolutely denied. Each cell is a special structural unit that remains functionally and anatomically distinct. This, it will be noted, agrees entirely with the em- bryological evidence produced by His; for each cell, with its den- dritic and nerve-processes extend- ing perhaps a distance of several feet, is the result of the growth of a single neuroblast. Waldeyer has given to each of the units so formed the name of neuron. The entire nervous system is a combi- nation of neurons, independent in structure, and combined for func- tional purposes by the juxtaposi- tion of their processes. Each neu- ron may be considered as composed of three portions: the cell-body, the nerve-fibre, and the fibrillary arborescence in which the fibre ter minates. The appearance of the connec- tions of the nerve-roots with the spinal cord, as demonstrated by Golgi's method in the embryo chick, is shown in Fig. 141. The minute elevations noted on the " growth cone " at the end of each growing process, referred to in the first part of this article, are apparently the budding terminal fibrillae of the fully developed neuron. The power of peripheral extension appears by no means to be confined to foetal life. It is probably by such extension, from al- ready existing cells and fibres, that nerves are renewed after section. There appears indeed to be a general ten- dency for fibres to extend until arrested at the periphery. When cut, as in amputations, they still continue to grow, causing the well-known convoluted growths (traumatic Fig. 139. - Types of Nerve-cells as shown by Golgi's Method. A, cell with long nerve- process, Golgi's Type I., also called a Deiters cell; B, cell with short nerve-process, Golgi's Type II., also called a Golgi cell; *, *, nerve- processes. the nerve-processes, and that reflex phenomena take place through this plexus in essentially the same way as imagined by Gerlach, and that by its connections with other nerve-roots different levels of the cord are excited and associated for co-ordinate movements. The method of Golgi was soon taken up by other histologists and applied to a wide range of research. It has been especially fruitful in the hands of the well- known Spanish investigator, Dr. Santiago Ramon y Ca- jal, Professor in the University of Barcelona. Great advantage is obtained by applying it to embryonic tissues, as the field is much smaller and the elements fewer, so that it is possible to bring an area corresponding to a considerable extent of the adult tissues within the limits 197 Cranial and Spinal Nerves. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) neuromata) found in stumps after healing, His suggests that it is by a similar extension of growth of fibres within the central organs that one portion of the brain is enabled to assume vicariously the functions ordinarily belonging to another part, after such part has been destroyed or become disabled. The growth of fibres is by no means But in 1889, at the meeting of the Anatomical Society at Berlin, he exhibited specimens which convinced the most sceptical. The discoveries were immediately taken up and fully confirmed by von Kdlliker, of Wurzburg ; Waldeyer, of Berlin ; Lenhossek, of Basel ; and van Ge- huchten, of Louvain ; all of whom have published im- portant papers on the subject. The fibres of the posterior root, according to these observers, are of two varieties, centrip- etal and centrifugal. The former, by far in the majority, do not enter the gray substance as undivided fibres, according to the prevalent view, but immediately bifurcate, Y-like, one limb ascending, another descending. These limbs run longitudinally in the posterior col- umns of the cord, which are almost wholly made up of these continuations of the posterior roots. (See Fig. 142.) rapid-weeks and even months being required for them to reach their ultimate destination. The cells belonging to the spinal ganglia, hi some cases, end peripherally without bifurcation, and become envel- oped by special sheaths of connective tissue, as in the corpuscles of Pacini or of Krause ; in others they divide into fibrillte that end freely in the intercellular spaces. What, now, are the central connections of the fibres de- rived from the posterior roots ? Already, in 1885, Nan- sen had demonstrated that in Myxine glutinosa, one of the lowest fishes, those fibres bifurcate upon reaching the white substance of the cord. Golgi also had seen such Fig. 142.-Entrance of the Posterior Roots of the Spinal Nerves. (Ram6n y Cajal.) A semi-diagrammatic, longitudinal section of the posterior column of the cord, taken parallel to the entrance of the posterior nerve-roots. A, posterior root; B, white substance ; C, gray sub- stance ; D, cell of the posterior horn whose nerve-process bends up- ward ; E. cell with bifurcating nerve-process: F. cell whose nerve, process bends downward ; G, H, and I, final ramifications of nerve- processes : K, K, K, final ramifications of collaterals; a', collateral from the ascending branch of a nerve-fibre of the posterior root; b', collateral from the main trunk of a fibre of the posterior root. Fig. 141.-Transverse Section of the Spinal Cord of a Chick at the Ninth Day of Incubation. (Ramon y Cajal.) V.r, axis cylinders of anterior root-fibres issuing from the large cells of the anterior horn, N; Dr, posterior root-fibres passing from the bipolar ganglioblasts of the spinal ganglion, Gl, into the posterior column of the spinal cord, where they bifurcate and send collaterals that penetrate the gray matter. These latter fibres give off, at right angles to their course, delicate collateral branches (a', Fig. 142) which penetrate the gray substance and terminate by free rami- fications (K) that surround the nerve-cells. Collaterals may also be given off from the trunk-fibre before its di- vision (b"). A slight thickening is observed at the point where these collaterals arise, and their origin is always, as in the division of the single pole of an adult ganglio- blast (Fig. 132, B), at a node of Ranvier. The ascending and descending limbs of the bifurcating fibre probably end by bending sharply at a right angle, taking a course like the collaterals, and breaking up in a similar manner. Their full extent has not been com- pletely demonstrated. In the embryo the course of the fibres has been followed for a distance of several milli- bifurcations, as appears from publications made by him in 1881. These observations were, however, fragmentary and without special result. It was reserved for Ramon y Cajal to clearly unravel the central connections. His first publications were received with the same incredulity as those of his predecessors, and the text-books of Obcr- steiner, Edinger, and others, on the anatomy of the ner- vous centres, although published some time after his discoveries had been made, yet give no account of them. 198 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Cranial and Spinal Nerves. metres, and it lias been estimated by Kolliker that this corresponds to a distance of from six to seven centimetres in the adult. From clinical and experimental evidence it is believed that they extend much further. It is known that after section of the posterior roots an ascending de- generation occurs, reaching as far as the medulla ob- longata to the nuclei found in the columns of Goll and Burdach, or perhaps even higher. Also, that a certain amount of descending degeneration occurs, not extending, it would appear, for any very great distance. As the fibres of each successive nerve-root divide, the ascending and descending limbs push those coming up from a lower level toward the middle line, so that their ascending course is slightly oblique rather than vertical, and at last they are displaced from the column of Burdach to the column of Goll. This accounts for the fact already noted by physiolo- gists, that lesions of the latter column are usually found to be as- sociated with the leg rather than the arm ; and also explains the rea- son why that column is usually composed of finer fibres. Contain- ing the terminals of the fibres that enter on much lower levels than those in the column of Burdach, they would naturally be smaller. The fibres of the column of Goll also acquire their myelin sheaths at a later date. (Flechsig.) The course and ultimate distribu- tion of the collaterals within the ^ray matter of the cord is, it will be seen, of considerable Iidorncf a a it maar ho ovnoofod are conveyed to the ganglioblast at d, and thence to the cord, where by'the bifurcation at e they may extend either upward or downward, and affect different levels supplied by the collaterals h, h, h, which in their turn communicate by contact with the motor cells a, a, that convey impulses through the anterior root, and by termi- nal ramifications to the muscle-fibre c. It will be noticed that but two neurons are involved in this act. II. Another bundle of collaterals passes to the column of Clarke from the middle region of Burdach's column. The fact that such a path existed was already demon- strated by Flechsig (" Leitungsbahnen," Plate xviii., Fig. 123), as shown on Fig. 134, D. The fibres break up within the column, surrounding the cells with a rich net-work. The fibres are provided with a medul- lary sheath much farther than usual, and this is thought to be the reason why Clarke's column has such a markedly fibrous appearance when colored by haematoxylin (Lenhossek), and why it is one of the first areas to show degeneration in tabes. III. A few collaterals pass from the fibres of the posterior root through the gray posterior com- missure, to break up into tufts in the posterior horn of the opposite side, in front of the sub- stantia gelatinosa of Rolando. (Fig. 144, 3.) Unilateral section of the cord, as is well known, abolishes tactile sensation on the opposite side be- low the lesion. The decussating fibres here de- scribed are, however, evidently insufficient to fully account for this phenomenon. These decus- sating fibres are much more marked in the dog, rabbit, and guinea-pig than in man. IV. A great number of the collaterals from the fibres of the posterior root penetrate the posterior horn, passing through the substantia gelatinosa and breaking up in the gray matter immediately beyond. These are the fibres that have been hitherto noticed by anatomists streaming through the gelatinous substance in arcades like meridians of longitude on the surface of the globe. The ter- minal filaments are unusually fine and numerous, and being readily stained, produce the appearance which Waldeyer has called the nucleus of the posterior horn. As to the elements of the posterior nerve-roots which have been spoken of as centrifugal, it is noticed that when the roots are cut a small num- ber of fibres degenerate peripherally. (See Fig. 133.) These have no connection with the cells of the spinal ganglia. Lenhossek thinks that in the spinal cord of the chick, on the fifth day of incu- bation, he has been able to demonstrate that these fibres arise from cells in the anterior horn. Their function is unknown. If their existence in all vertebrates is ascertained, it will be a very in- teresting exception to the well-known law of Bell, by which the posterior roots are held to be ex- clusively centripetal. It will be evident from this sketch of the be- havior of the posterior roots, that an account of them will be incomplete without some notions of the cells of the cord with which they are anatomi- cally related, and to which they probably trans- mit their impulses. Upon the right-hand side of Fig. 144, the principal groups of such cells are diagram- matically indicated. \/ Radicular Cells.-Those are the cells already referred to that send processes to the nerve-roots. (Fig. 144, a, a.) They are confined to the anterior and lateral portions of the anterior horn, and send their processes to the anterior root already adverted to. The passage of fibres from cells of one anterior horn to the anterior root of the opposite horn (Fig. 133, h) is positively denied by all recent ob- servers. Commissural Cells.-These are cells that send a nerve- process to the opposite side of the cord by the way of the anterior commissure. (Fig. 144, c, d.) Ramon y Cajal finds them distributed throughout the gray matter in all parts of the cord. Lenhossek describes a special group Fia. 143.-Scheme of Simple Reflex Action. (Lenhoss6k.) A, motor ceil of anterior horn ; b, its nerve-process extending through the anterior root ; c, its termina- tion by ramifications upon striped muscular fibres ; d, a single ganglioblast situ- ated in the ganglion of a posterior root and sending into the cord a centripetal fibre that bifurcates at e into an ascending limb,/ and a descending limb, (/; h, h, collaterals that reach by their ramifications the motor cells of the anterior horn ; i, the peripheral origin of the other process of the ganglioblast from ramifica- tions ending free in the epidermis ; A', from a l'acinian corpuscle. to throw light upon the physiological processes in which the cord takes part. We may divide them into several categories, as follows: I. A large number of the collaterals belonging to the posterior roots unite in a bundle which crosses the pos- terior horn and breaks up into terminals that ramify about the cells of the anterior horn. (Fig. 144, 1.) There is thus established the reflex-path imagined by Gerlach and Golgi (see Fig. 140), there being, however, this difference in the new conception, 1st, that the path is not made directly by the fibres of the posterior roots, but by their collaterals ; 2d, that the terminals do not anas- tomose with the cell-processes of the anterior horn. On consulting Fig. 143, it will be seen that sensations taken up from the skin by the nerve-filaments i and k, 199 Cranial and Spinal Nerves. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) of these cells on the medial side of the anterior horn, and these are the ones which were formerly supposed to send fibres to the anterior root of the opposite side. Commis- sural cells are usually smaller than the radicular cells, and their nerve-processes may spring either from the cell-body or from one of the dendritic trunks. The axis cylinder may (1) break up at its termination into the usual arborization ; or (2) divide into two branches, one of which breaks up, the other proceeding to the adja- cent white matter ; or, (3) after bifurcating, both branches may pass to separate portions of the white mat- ter. The branches proceeding to the white columns may either bend simply upward, or divide T-like, sending branches upward and downward. This affords an in- teresting anatomical explanation of the simultaneous as- cending and descending degenerations sometimes found after lesions of the opposite side of the cord. Occasion- ally lateral branches may be seen given off from the nerve-process in its course. It will be remembered that, in considering the distri- and also communicate through the tegmental region with the cortex of the brain. After removing the parietal lobe of the cat, Monakow found that the lemniscus tract de- generated, and could be traced to the nucleus of Goll's column of the opposite side. Column Cells (celulas de los cordones, Ramon y Cajal). -These pass from the gray substance into the surround- ing columns of gray matter of the same side. (Fig. 144, c.) They are scattered without order in nearly all parts of the cord, but are especially abundant in the middle zone of the gray substance, that is to say, the region between the anterior and the posterior horns. They are usually of median or small size. They may either divide into as- cending and descending branches, or simply turn up without division. Sometimes their nerve-processes di- vide within the gray matter and send two or even more divisions into the columns at a distance from each other, which divisions comport themselves like a single fibre (celulas multicordonales, Ramon y Cajal). Most of these cells send their processes to the anterior and lateral Fig. 144-Scheme of our Present Knowledge of the Relations of the Cells and Fibres of the Spinal Cord. (Lenhoss6k.) The right side of the figure shows the cells of different classes found in the cord with their processes. The left side shows the processes of cells whose bodies are either beyond the cord or at other levels, with the distribution of their collaterals, a, a. Motor cells of anterior horn ; c, commissural cells; d, Golgi com- missnral cell: e, e, columnar cells of antero-lateral column ; f, f, columnar cells of posterior column ; g, Golgi cell of posterior horn ; f, fibres of pos- terior root forming the antero-posterior reflex tract; 2, fibres passing to column of Clarke ; 3, commissural fibres of posterior root; 4, fibres that enter the posterior horn ; k, k, collaterals of antero-posterior column ; I, I, collaterals from the pyramidal tracts. bution of the collaterals of the posterior nerve-roots, it was found that but a very small number penetrate to the opposite side of the cord, and that these were insufficient to explain the phenomena of crossed, tactile sensations. The discovery of the commissural cells makes the matter clear. They appear to constitute neurons of the second order, that serve to transmit to the opposite side of the cord impulses received from the periphery. It should also be noted in this connection that those fibres that as- cend from the posterior roots in the columns of Goll and Burdach are interrupted, when they reach the medulla oblongata, by the nuclei found in those columns, and there transfer their impulses to neurons which decussate like the commissural cells of other levels of the cord. These nuclei then are in fact local collections of such commis- sural cells. In a former volume of the Handbook (VIII., p. 186) it was noted by Spitzka that it is probable that the lem- niscus tract of the brain is composed of fibres that take up impulses from the nuclei of the posterior columns, columns. These processes quite frequently show an in- crease of calibre during their course. Among the inter- esting cells of this class are those of the column of Clarke, whose processes pass outward and turn toward the brain in the cerebellar lateral tract. The existence of a path of this kind has been known since Gerlach and Flechsig, and it is sometimes called Flechsig's bundle. (See Fig. 134, K) It has been hitherto supposed that the cells of the column of Clarke were many of them bipolar. (See Mott, Obersteiner, p. 182, and Fig. 107.) This is now shown to be an error. They are all multipolar cells with extremely rich dendritic processes. These are sometimes given off from two stems arising at opposite ends of the cell, and as the processes are for the most part torn away in the preparations ordinarily made, the cells then appear as bipolar. The collaterals that were mentioned above as passing to the column of Clarke, surround these cells with an interlacing basket-work of processes. From clinical evi- dence it is believed that the impulses here conveyed are 200 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Cranial and Spinal Nerves. not those that relate to tactile sensation, but rather those which concern co-ordination of movements. The cells constitute neurons of the second order, communicating with the cerebellum. It is well known that disorders of the cerebellum produce inco-ordination of movements, and also that when a sclerosis is set up about the cells of Clarke's column and the elements atrophy, as in tabes dorsalis, that inco-ordination is one of the prominent symptoms. There is no ground for the hypothesis ad- vanced by Bechterew, that these cells communicate with the column of Goll. But few cells are found that send nerve-processes into the posterior columns. Lenhossek has found some such in the posterior horn behind the column of Clarke. Cells occupying the area of the posterior horn known as the substantia gelatinosa of Rolando, send their pro- cesses for the greater part to the area at the tip of the posterior horn, which, since Lissauer's description, has been known as the zona terminalis. The cells of the sub- stantia are large and spindle-shaped, and were formerly (SUPPLEMENT). matter tneir terminals. inese would produce whal Kolliker has designated as the " indirect reflex path" bj which the motor cells of different levels of the cord can be correlated in special groups (see Fig. 145); 2d, the col- laterals may belong to nerve-processes of cells situated at levels entirely above the cord, in the cortex of the brain, in the cerebellum, or in the medulla oblongata. There seems to be some reason to think that this is the case. The so-called pyramidal tracts connect, as is well known, the motor area of the cerebral cortex with the cord. The result of degenerations shows that they are divided into two portions, the direct pyramidal tract, situated in the anterior columns, and the crossed pyramidal tract situated in the lateral column near the tip of the poste- rior horn. From each of these columnar areas collaterals pass in considerable numbers to ramify about the large cells of the anterior horn. It is interesting to note that, by the group of commissural cells situ- ated on the medial side of the anterior horn, connection may be made with Fig. 146.-Nuclei of the Cranial Nerves. (Edinger.) The medulla ob- longata and the pons are represented as if transparent. the direct pyramidal tract of the opposite side, and that thus may be explained the fact, already demonstrated clinically, that lesions of this tract affect movements of the opposite side of the body. Upon examining by the same method the nerves at a higher level than the spinal cord, we find that the same general structure is found. Some of the results obtained are most striking, and throw a flood of light on the gen- eral constitution of the nervous system. The existing knowledge of the situation of the nuclei of origin of the cranial nerves is shown in the following diagram. (See Fig. 146.) Olfactory Nerve.-In Fig. 147 there is diagrammatically shown an antero-posterior section of the olfactory bulb. In the olfactory mucous membrane are found two kinds of cells, the epithelial, ec, and the nervous, be, the latter being bipolar, presenting one process to the surface for the reception of impressions, while the other passes centrally and breaks up into the usual ramifications, forming the well-known glomeruli of the olfactory bulb, which have caused so much speculation. In these glo- meruli they come in contact with the peripheral processes of another set of cells, called mitral cells from their shape, they having a large body and two processes given off nearly together. The peripheral process receives the stimulus from the olfactory glomeruli, and it is trans- mitted to the brain by the other process, which is directed horizontally. This shows in a striking manner that the hypothesis'of Golgi, that the dendritic processes are for the purpose of absorbing nutriment, is incorrect. Each of the nervous elements or neurons is in fact independent, and each probably serves as a transmitter of stimuli. Optic Nerve.-Here the sensory cells appear to be the large ganglion-cells of the retina. By their short processes they communicate with the special receptive elements, the rods and cones and the spongioblasts. Their long processes go to make up the principal mass of the optic nerve-fibres (see Fig. 148), and break up into the usual arborescent filaments that become associated with fila- ments of short-process cells situated within the central ganglia (corpus geniculatum, optic thalamus). The white radiations observed in the corpora geniculata are composed of such, fibres. His has shown that in the em- bryonic retina there exist neuroblasts whose processes Fig. 145.-The Indirect Reflex Path. (A. v. Kolliker.) a, Ganglioblast sending into the cord a fibre, b, which divides into ascending and descending limbs, c, d. and gives off collaterals, e, which embrace the cell / with their terminal filaments. This in turn sends off a nerve- process, g, which divides into ascending and descending limbs, A, i, provided with collaterals, j, j, that embrace with their filaments the motor cells k, k, from whose nerve-processes, I, I, the anterior roots are formed. supposed to be connected either immediately with the pos- terior roots, or with Gerlach's plexus. (See Fig. 134, K.) Cells with Short Nerve-processes (Golgi cells).-It was held by Golgi that these cells were confined to the pos- terior horn. This is found not to be the case. Still there is one locality in that horn, near Clarke's column, in which they are especially numerous. (Fig. 144, g.) They are also found near the anterior commissure, send- ing their processes across to the opposite side of the cord. (Fig. 144, d.) Collaterals of the Columns.-We have hitherto consid- ered only the collaterals given off by the ascending and descending limbs of the vertically-branching fibres of the posterior roots. These are by no means the only ones. A longitudinal section of the white columns in any por- tion of the cord shows that all the vertical fibres have the same disposition to give off to the gray substance collat- erals that end by arborescent divisions. -Kolliker could find no exception to this rule. It is evident that these collaterals may arise from two sources : First, they may belong to column cells that have divided at higher or lower levels into their ascending and descending branches, and are sending back into the gray 201 Cranial and Spinal Nerves. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) grow centrally into the optic nerve. There are also in the optic nerve certain fibres that belong to cells situated in the corpora quadrigemina anteriora, and also probably some from cells in the occipital lobe of the cortex. The question has been often discussed whether the fibres of this nerve between their real and apparent origin Weigert and Pal, the latter that of Golgi. They find that in the duck, at least, there is a partial decussation of fibres derived from both the dorsal and ventral portions of the nuclei. The crossed fibres pass principally into the internal or median part of the peripheral nerve. The fibres of the posterior longitudinal bundle give off numerous collaterals that come in contact with the protoplasmic processes of the cells of the nuclei. Starr divides the cells of the nucleus into groups which innervate special muscles, as follows : Sphincter iridis. Levator palpebr®. Rectus superior. Obliquus inferior. Ciliary muscle. Rectus internus. Rectus inferior. Median Line. Gaskell lias put forward a theory that a ganglion formerly existed upon the third and fourth cranial nerves, and as evidence therefor shows a consider- able mass of connective tissue, apparently the re- Fig. 147.-Structure of the Olfactory Filaments and Bulb. (Ramon y Cajal.) be. Bi- polar cells of the olfactory mucous membrane ; sm, submucosa ; ethm, cribriform plate of the ethmoid ; og, olfactory glomeruli; me, mitral cells ; ep, epithelium of the olfactory ventricle ; ec, epithelial cells of the olfactory membrane. Fig. 149.-Transverse Section through a Rootlet of the Third Cranial Nerve of Man, to Show Degenerated Ganglion. undergo a decussation either total or partial. Duval held that the fibres of the nerve proper do not decussate, but that there are mingled with them certain fibres from the posterior longitudinal bundle, probably derived from the nucleus of the abducens, that undergo decussation. This view was adopted and figured by Testut in his " Anato- mic Humain," 1891. Gudden showed, however that in the rabbit, and prob- sult of degeneration, through which some of the rootlets of the nerve pass. He holds that the arrangement and appearance of these roots, as shown on section through this mass, is precisely that which would appear in a sec- tion through a ganglion. (See Fig. 149.) He considers that this degenerated ganglion belonged to the sensory root of the nerve, and that this sensory root has disappeared because of the great changes that have taken place in the vertebrate head and brain. He also thinks that the substantia nigra of the crura cerebri is a degenerated nucleus from w hich arose certain lost fibres belonging to the third and fourth nerves. He thinks the ciliary ganglion is a vagrant ganglion belonging to the small-fibred portions of the oculo-motor nerve. Patheticus Nerve.-The evidence that the fibres of the fourth cranial nerve decussate completely has not in any way been shaken. Gaskell thinks that a small vagrant ganglion will be discovered in connection with it, as he believes it to belong to his efferent ganglionated splanch- nic class. Trigeminus Nerve.-Gaskell considers the motor-root of the trigeminus as a complete segmental nerve, that has its small-fibred ganglionated portion in the fibres that go to the spheno-palatine ganglion and whose sensory fibres have degenerated. The sensory root of the trigeminus he considers to belong to several of the segmental cranial nerves. Abducens Nerve.-A novelty with reference to the ori- gin of the sixth nerve is the discovery of a small and Fig. 148.-Connections of Fibres of the Optic Nerve. (Romon y Cnjal.) Section through the corpus geniculatum laterale of the cat. .4, fibres of the optic nerve ; b, b, their ultimate filaments entwining with Golgi cells. ably in man, the nucleus of the oculo-motor nerve is com- posed of two parts, one ventral, sending fibres to the nerve of the same side, one dorsal, sending fibres to the nerve of the opposite side. Kolliker and van Gehuchten have recently studied the question anew, the former observer using the methods of 202 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Cranial and Spinal Nerves. easily overlooked bundle of fibres that turns toward the middle line ventrally from the nucleus and enters the abducens nerve of the opposite side. A connection has been described between the abducens nucleus and the superior olive. Edinger suggests that this connects the abducens with the auditory nerve and correlates the move- ment of the eyes with orientation in space. The connec- tion of the fibres of the facial nerve with the nucleus of the sixth is definitely disproved by the researches of Gudden. Facial Nerve.-Fibres from the facial nucleus are now known to decussate. The " superior facial nucleus" de- scribed by some authors as supplying fibres for the orbicularis oculiand frontalis muscles is now discredited. It is believed that these fibres, which do not degenerate in central disease of the facial nerve, are probably derived from the posterior longitudinal bundle. Auditory Nerve.-A considerable addition has been made to our knowledge of the origin of the auditory nerve. It seems clear that we have here to deal with two nerves, one for the supply of the cochlea and one for the semi- circular canals. Many physiologists hold that this latter nerve has nothing to do with hearing. The roots of these nerves lie on opposite sides of the restiform body and are therefore distinguished as lateral (superficial, inferior, posterior) and medial (deep, superior, an- terior). The lateral is connected with the coch- lear nerve, the medial with the vestibular. The lateral root springs from a collection of cells lying partly outside the brain substance, like a ganglion on a nerve- trunk. In some verte- brates and in the embryo it is wholly detached. It is sometimes termed therefore the auditory ganglion. It produces the eminence in the me- dulla oblongata known as the acoustic tuber- cle. The medial root arises chiefly from a large nu- cleus lying near the median line known as the chief auditory nu- cleus, also from a collec- tion of large cells lying more externally, termed Deiters's nucleus. By the method of Golgi, Retzius has shown that the endings of the auditory nerve are essentially the same as those described for other sensory nerves. Both in the organ of Corti and in the acoustic crest of the semi- circular canals exist the terminals of bipolar cells situ- ated in the ganglion spirale (cochlear nerve) and ganglion of Scarpa (vestibular nerve), which terminals break up into numerous branches situated between the epithelial cells. The epithelial hair-cells represent, then, the same elements as the rods and cones of the retina, and are agents for carrying to the nerve-cells the sonorous vibra- tions. This arrangement will be seen in Fig. 150. The epithelial expansion of this bipolar cell corresponds ap- parently to a dendritic process, while the central com- munication is an axis cylinder. Frank Baker. Edinger. Ludwig: ZwOlf Vorlesungen uber den Bau der nervflsen Cen- tralorgane. 3te Auflage. Leipzig, 1892. Flechsig, P. : Ueber die Leitungsbahnen im Gehirn und Riickenmark des Menschen. Leipzig, 1876. Gaskell, W. 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Lenhossek, Mich. v. : Der feinere Bau des Nervensystems im Lichte neuester Forschungen, Fortschritte der Medicin, 1892, No. 44 et seq. Marie, Pierre : Lefons sur les maladies de la moelle. Paris, 1892. Monakow, C. v. : Neue experimentelle Beitriige zur Anatomie der Schleife, Neurol. Centralblatt, Jahrg. 1885, S. 265. Nansen, Fritjof : The Structure and Combination of the Histological Elements of the Centra) Nervous System, Bergens Museums Aars- beretning for 1885. Bergen, 1886. Obersteiner, H. : The Anatomy of the Central Nervous Organs in Health and Disease. Translated, with Annotations and Additions, by Alexan- der Hill. London, 1890. Obersteiner, H. : Die neueren Anschauungen uber den Aufbau des Nervensystems, Naturwissenschaftliche Rundschau, 1892, vii., 1 and 17. Ramon y Cajal. S. : Manual de histologia normal y tecnica micrografica. Barcelona, 1889. Ramon y Cajal, S. : Sobre la aparicion de las expansiones celulares en la meduia embnonaria, Gaceta Sanitaria de Barcelona, 1890, ii., 413. Ramon y Cajal: Notas preventivas sobre el gran simpatico y retina de los mamiferos, Gaceta Sanitaria de Barcelona, 1891, iii., No. 16. Ramon y Cajal, S. : Pequehas contribuciones al conocimento del sistema nervioso. Barcelona, 1891. Ramon y Cajal, S. : El nuevo concepto de la histologia de los centros nerviosos, Revista de Ciencias Medicas de Barcelona, 1892, Nos. 16, 20, 22, and 23. Ranvier, L. : Des tubes en T et de leur relations avec les cellules gan- glionnaires, Comptes-rendus de 1'Academie des Sciences, 1875, Ixxxi., 1274. Remak, E. : Ueber multipolare Gamzlienzellen, Berichte fiber die Ver- handl. d. k. preuss. Akad. Berlin, 1854, S. 29. Retzius, Gustaf : Biologische Untersuchungen. Neue Folge, iii. Stock- holm, 1892. Robin, Ch. : Memoires sur la structure des ganglions, L'Institut, 1847t No. 687 ; 1848. No. 733. Ventosa, Duran : Estudios sobre la nneva histologia del sistema nervioso. Gaceta Sanitaria de Barcelona, 1890, ii., 282 et seq. Fig. 150.-Collecting Filaments of the Vestibular Branch of the Auditory Nerve. (Ramon y Cajal.) Trans- verse section of the semicircular canal of a mouse. A, lumen of the canal : B, acoustic crest ; C, bundle of nerve-fibres containing bipolar cells ; D, a similar bundle supply ing the top of the canal ; a, b, and c, varieties of bipolar epithelial cells. Bibliography. Bidder und Reichert: Zur Lehre von dem Verhaltniss der Ganglien- korper zu den Nervenfasern, nebst einen Anhange von A. W. Volk- mann. Leipzig, 1847. Deiters, O. : Untersuchungen fiber Gehirn und Ruckenmark desMensch- en und der Saugethiere. Braunschweig. 1865. Duval, Mathias : Recherches sur 1'origine reelle des nerfs craniens, Journal de 1'Anatomie et de la Physiologic, 1880, xvi., 285-312. 203 Cranial Nerves. Cresol. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Wagner, R. : HandwOrterbuch der Physiologie. Bd. iii., Abth. 1, S. 377. Wagner, R. : Neue Untersuchungen liber den Bau und die Endigungen der Nerven. Leipzig, 1847. Waldeyer, W. : Das Gorilla-Riickenmark, Abhandlungen der KOnig- liche Akademie der Wissenschaften zu Berlin, 1888. Waldeyer, W. : Ueber einige neuere Forschungen ini Gebiete der Anat- omie des Centralnervensystems, Deutsche medicinische Wochenschrift, 1891, No. 44 et seq. CREASOTE. Discovered in 1830 by Reichenbach.it early acquired a reputation for being of service in pul- monary troubles, and has always been used to a greater or less extent in such diseases. Its recent revival, how- ever, dates from the communications of Professor Julius Sommerbrodt, of Breslau, Fraentzel, Guttman, and others in 1887 and 1888. Ten years previously Drs. Bouchard and Gimbert had given the results of their experience with the drug, and had recommended that it should be more extensively used in pulmonary phthisis, as it had proved of decided value in their hands. During the intervening years many physicians tried the remedy, but it was not until Professor Sommerbrodt corroborated the statements of Bouchard and Gimbert, and claimed for it even greater curative properties, that it received the atten- tion which it appeared to deserve. Sommerbrodt's experi- ence appears to have embraced many thousand cases and to have extended over a number of years ; as a result he is very decided in his views, and claims that it is not only a very useful drug for the relief of the numerous trouble- some symptoms, but that, by its power of checking the progress of the disease, it appears to possess almost spe- cific properties. In a later paper, in reviewing some five thousand cases of tubercular disease, he states that definite recovery has been attained in a much greater proportion than by any other method of treatment, and in the great majority of cases decided benefit could be traced to its use. The fever, night-sweats, cough, and expectoration were lessened, the general health of the patient improved, and in the cases where no curative effect followed or was to be expected, the livps of the patients were pro- longed and rendered more comfortable. He dwells par- ticularly upon the importance of an early diagnosis where curative results are to be expected, and insists upon the drug being administered in full doses and for a prolonged period. In his early cases he considered five to eight minims a day to be sufficient, but he now advises that as much should be given as the patient can bear, his rule being that the more creasote can be introduced into the system the greater will be its beneficial action, lie now advises that twenty to twTenty-five or thirty minims a day should be given, and this dose continued for many months or even years. His mode of administering it is to commence with one minim three times a day and in- crease the dose by one minim each day for eighteen days, until such an amount is reached as the patient can bear, and then continue that quantity for an indefinite period. He gives the drug with a few drops of cod-liver oil or oil of sweet almonds in capsules,-never on an empty stomach, but after the three principal meals. The purity of the drug he considers of the greatest importance, and advises that only the best beech-tar creasote be used. If these points are observed no difficulty should be experi- enced by the patient, as any ill effects-such as eructations and belching of wind-never continue for any length of time. The antiseptic action improves the condition of the digestive tract and a decided improvement soon fol- lows its use, not only relieving the digestive disturb- ances but increasing the appetite and promoting assimila- tion and the general well-being of the system. Another advantage that he claims for this treatment is, that it is simple and devoid of danger and does not prevent the adoption of further methods of combating the disease. Sommerbrodt's purpose in administering the drug so freely is based upon the researches of Guttman, who found that the bacillus of tuberculosis would not live in a solution of greater strength than one part in four thou- sand. He points out that if about twenty grains could be introduced into the blood of an ordinary man it would represent a solution of such a strength. He considers it possible to produce such a condition by giving it in large quantities, as it is not likely to be changed or excreted as rapidly as it is introduced. He has given as much as sixty minims a day, and Freudenthal has pushed it to one hundred and fifty minims in the twenty-four hours. How creasote acts or in what way it produces its bene- ficial action has not been determined. It is admitted that the improvement in digestion and nutrition that follows its use places the system in a better state to resist the disease, but beyond this nothing is known. Creasote does not exist in the blood in a free state, and this would seem a serious objection to Sommerbrodt's theory, but it is supposed to enter into combination with certain albu- minoids in the blood, and this combination he considers still possesses the properties of the crude drug. Very recently Seifert and Hoelscher have formulated a theory which favors this view : they conclude that the products of creasote circulating in the blood render innocuous the ptomaines which have been formed by the bacilli and afterward absorbed. In this way it eliminates from the system these toxic compounds before they produce any of their deleterious effects. Such experiments as have been made on animals to test the efficacy of creasote upon tuberculosis have not sup- ported the views of those who consider it of so much value. The disease always progressed steadily, and no effect was apparently produced by the drug. Sommer- brodt, however, points out that artificial tuberculosis in animals is very different from the disease in man, and that many animals are particularly susceptible to the influence of the poison. In using creasote much difficulty has been found in administering the large doses that are advised without producing gastric disturbance and causing the patient to rebel. How far this may be due to the quality of the drug is hard to estimate, but it may also be, to a certain extent, due to the preparation or the manner in which it is given. Mixed with the oil and enclosed in capsules is probably one of the simplest, as well as easiest ways of taking the drug. When the cod-liver oil is not well borne, the more bland oil of sweet almonds or olive-oil may be employed. In addition to the nutritive proper- ties of the oil, it is supposed, to a certain extent, to con- vey the drug into the intestines before being acted upon. Freshly prepared capsules are always to be preferred, as it has been found that a chemical reaction occurs when the oil and creasote remain in contact for any length of time. Dissolved in spirits is a common way of prescrib- ing the drug, and tincture of gentian has been favored as a means of disguising the taste. A combination of Bou- chard, which has given rise to many modifications, was as follows : Creasote, 15 minims ; tincture of gentian, 40 minims ; rectified spirits, 6 drachms ; white wine, to make 3 ounces. Milk is recommended as a good vehicle for the drug, either in its purity or when in solution. Malt extract, or malt extract and emulsion of cod-liver oil, are very highly praised as a means by which it may be administered. The following emulsion is said to dis- guise the taste and supply the beneficial properties of the constituents : Malt extract and emulsion of cod-liver oil, 8 ounces ; creasote, 80 minims ; oil of bitter almonds, 4 minims ; oil of lemon, 6 minims. Many pills containing creasote are prepared and form a convenient vehicle, but the insolubility of many of these pills must not be forgotten. A coating of keratin, resin, salol, collodion, and substances not acted on in the stom- ach, is now prepared, and the creasote is only liberated when the pill reaches the alkaline fluids of the intestine. The hypodermic injection of creasote has been advo- cated as an excellent means of introducing it into the cir- culation, the great advantage being that it does not cause any derangement of the digestive organs. A ten per cent, solution in oil of sweet almonds is used, and the treat- ment begun by injecting small amounts, which are grad- ually increased. Local irritation, however, has frequent- ly followed, and the internal administration is generally preferred when possible. Deep pulmonary injections have been used. Specially prepared long needles are employed, and the creasote carried through the chest- wall directly to the diseased tissue. Eight minims of a 204 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Cranial Nerves. Cresol. three per cent, solution in oil is the quantity used. A modification of this is the intra tracheal injection of the drug. A five per cent, solution in oil of almonds is used, and thirty-one minims (two grammes} injected into the trachea twice a day. The oil descends into the lungs and gradually enters the alveoli. It is said that no bad effects follow this use of the drug, and on the affected part a beneficial local action is exerted. Inhalation is, of course, a valuable way of acting di- rectly on the diseased organ, and forms an important adjunct to the internal use. The following combination is most efficient: Creasote, eucalyptus, and turpentine, each 5 drachms ; iodoform, 7| grains ; dissolved in sul- phuric ether, 1| drachm. In a paper published by Professor Sommerbrodt with- in the past year the application of creasote is specially advocated in the glandular enlargement and other dis- eases arising from a tuberculous condition in children. With him the results of such treatment have been most favorable, and he urges others to adopt it in their prac- tice. The dose for children above six years of age is from 7 to 12 minims per day, beginning with one minim and increasing it daily, as in his former directions for pulmonary disease. He also takes advantage of the oc- casion to insist upon the importance of a full dosage, and reiterates his faith in its value. In this paper he records the first instance of profound intoxication by the drug that has been brought to his no- tice. A patient of Dr. Freudenthal, of New York, who was taking, with benefit, from 30 to 45 grains a day, took about 150 grains (9 or 10 grammes) within two hours. She became unconscious, and gave the impres- sion of one narcotized ; pulse, 128 ; respiration, 30; in- tense trismus, lips cyanotic, pupils contracted, sensory and reflex action annulled. After nine hours the patient recovered without any ill effects following, and continued the regular use of the drug. Although it is now very evident that no toxic effects are to be dreaded during proper medication, there are some symptoms that must not be disregarded. The dis- coloration of the urine, when it occurs during large doses, calls for a diminution of the quantity, or its stoppage for a short period ; but if it follows small doses, or occurs fre- quently, the drug must be given very cautiously. Ver- tigo, intoxication, and signs of stupor must not be disre- garded, and malaise, prostration, sweating, cephalalgia are also signs of intolerance of the drug. Beaumont Small. CREOLIN is a proprietary article, the name being registered by the manufacturers in Hamburg. Commer- cial creolin, however, varies much in appearance and properties, and many preparations are sold under that title. It is obtained from the product that remains after carbolic acid has been removed during the fractional dis- tillation of coal-tar. The cresols form the active ingre- dients. The following analysis of the German compound is furnished by Dr. Bernard Fischer : Cresols, 20 parts ; naphthalene, 18 parts ; other hydrocarbons. 20 parts ; and non-volatile matter, 42 parts. It is quite free from car- bolic acid and other poisonous ingredients, and should not possess any toxic properties. Creolin is prepared by treating these insoluble hydrocarbons with resin and caustic potash, which form a resinous, soapy emul- sion. When added to water and agitated the ingredi- ents remain suspended as an emulsion. In appearance it is a dark, resinous liquid, neutral to test-paper, not caustic. Its odor resembles creasote. It mixes with oils. It possesses powerful antiseptic and disinfectant prop- erties, and is recommended as a substitute for carbolic acid, to which it is said to be superior, as it does not con- tain any poisonous ingredients. It is very extensively employed, and numerous reports speak in its favor in all conditions where carbolic acid is indicated. For surgical purposes two solutions are employed, one containing two per cent, of the drug, the other one-half per cent. The stronger is used for disinfecting the hands, the instruments, and surfaces of the body ; the (SUPPLEMENT.) weaker solution is used for irrigation, moistening dress- ings, saturating tampons, etc. For suppurating and sloughing -wounds, and where discharges are offensive the parts may be cleansed and disinfected by the pure drug, and the effect maintained by a weaker solution. To irrigate the bladder, urethra, nose, pharynx, and other mucous surfaces, a solution of one part in a thousand is sufficiently strong. The objections to its use are, the uncertainty of its action on account of the numerous preparations, and being unc- tuous .it renders the hands and instruments slippery and difficult to handle. Beaumont Small. CRESALOL. This is the cresylic ether of salicylic acid, and bears the same relation to cresylic acid that sa- lol does to carbolic acid. It is analogous to betol and salol, and has been introduced by Nencki, the originator of the other two compounds. It is prepared by treating cresylate of sodium and salicylate of sodium with per- chloride of phosphorus. Three salts are formed, accord- ing as the ortho-, meta-, or para-cresylic acid is used. All three possess the same properties, but the para-cresalol is the one usually prepared. The chemical formula is C.II4OHCOC8H4CH3. Cresalol is a white, crystalline powder, without taste ; odor somewhat resembles salol. It is insoluble in water, slightly soluble in alcohol. The dose is given as from three to thirty grains daily. It possesses antiseptic prop- erties similar to salol, and, like that salt, is not acted upon by the secretions of the stomach. It is used for in- testinal antisepsis, and is said to be more efficient than its analogues. In the system it is decomposed into cresol or cresylic acid and salicylic acid, and its advantage is the freedom of these acids from any toxic properties. Beaumont Small. CRESOL, CRESYOL, CRESYLIC ACID. This con- sists of ortho-, meta-, and para-cresylic acid in variable proportions, having a general formula of C6H4, CH3, OH. It is a higher homologue of carbolic acid or phe- nol, and differs from it by the replacing of one atom of hydrogen by the methyl group CH3. It is present in coal-tar, with carbolic acid, and is obtained during the process of fractional distillation. The fractional distilla- tion of coal-tar consists in the separation of groups of products according to their volatile properties. Up to 80° C. about four percent, is separated, consisting of car- bon bisulphide, ammonia, amylene, benzene, and other very volatile compounds. From 80° to 210° C. what is termed the light oil is removed ; this is made up of ben- zene and its homologues. Between 210° and 400° C. the heavy oil is formed, consisting of phenol, naphthalene, cresols, and other hydrocarbons. The residue is pitch, about fifty per cent. The phenol, cresol, and naphtha- lene, and other constituents of the heavy oil, are sepa- rated by further distillation. It forms the greater part of the crude carbolic acids of commerce, which might more properly be called crude cresols. It is a colorless, strongly refractive liquid, boils at 397° F., is strongly caustic ; its odor resembles creasote. It is insoluble in water, soluble in alcohol, glycerine, and ether. The cresols are powerful antiseptics and produce some of the most active preparations of the aromatic series. According to the investigations of Jaeger and Ohlmuller, of the Board of Health, and Fraenkel, of the Berlin Hy- gienic Institute, it has been shown that when dissolved in sulphuric acid the most active of such antiseptics is formed. Being insoluble in water it is difficult to obtain a solution that is stable and applicable to surgical pur- poses. Many methods have been devised and numerous prepa- rations have been introduced into commerce under a vari- ety of names : creolin, lysol, solveol, solutol, and others, are all preparations of this kind. Some contain other hydrocarbons in addition to the cresols. Resin and alkali soaps form a favorite means of retaining the active in- gredients in solution, but when added to water they pro- duce milky and greasy fluids, very objectionable for surgical uses; the antiseptic properties are, however, 205 Cresol. Death, Origin of. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) effective as deodorizers and disinfectants. Cresotate of soda has been found to retain cresol in solution. For therapeutic purposes a one and one-half percent, solution is sufficiently strong, free from irritant or caustic proper- ties, and equal to a five per cent, solution of carbolic acid. Cresol is also dissolved in a concentrated solution of sa- licylate of sodium, which allows of free dilution ; no de- composition occurs, a neutral solution of cresol being formed. Lime is recommended as a means of rendering a solution which forms a cheap and active disinfectant; one part of lime is treated with four parts of water, and five parts of cresol are added ; the resulting liquid con- tains fifty per cent, of cresol and is miscible in water in all proportions. For internal administration the preparation cresalol has been introduced and is highly recommended. Beaumont Small. CRESOTIC ACID (Cresotinic Acid, Homosalicylic Acid). This is a higher homologue of salicylic acid, to which it is allied both in chemical and in physiological properties. Its formula is C8H3OHCH3COOH, which is that of salicylic acid, CeHLOHCOOH, with one atom of II replaced by the methyl group CII3. It is obtained by the action of carbon dioxide on sodium and cresol; the product, when treated with hydrochloric acid, yields a solution of cresotic acid, from which it is separated by evaporation. It crystallizes in long, white, pris- matic needles, which dissolve with difficulty in cold water, more readily in hot -water, and are very soluble in alcphol, ether, and chloroform. Three isomeric acids are formed-the ortho-, meta-, and para-cresotic acids,-corre- sponding to the ortho-, meta-, and para-cresols. They dif- fer in their melting-points, by which they may be distin- guished, that of the ortho being 160° C.; the meta, 177° C.; and the para, 151° C. Their aqueous solutions are col- ored violet by ferric chloride, and in many other reactions they correspond to salicylic acid. They are now most readily separated from this acid by the fractional crys- tallization of their lead salts from alcoholic solutions. The three acids are generally present in the salicylic acid of commerce, which is prepared artificially, as much as 8.10 per cent, of the para-cresotic acid having been de- tected in some specimens. They are never present in the natural acid prepared from the oil of wintergreen. These acids were brought to the notice of the profes- sion in 1890, as dangerous ingredients of the salicylic acid of commerce, by the researches of Professors Char- teris and Dunstan, of Glasgow, which were published in the Pharmaceutical Journal and Transactions of Novem- ber 22d. It had long been known that very alarming symp- toms often followed the use of the artificial salicylic acid, and in 1878 two bodies had been separated which had been shown to account for the toxic symptoms, but which at the time were not identified. These were now demon- strated to be ortho- and meta-cresotic acids, and the third acid was also found to be present in large quantities. The meta-cresotic acid was known to be inert, but it was now claimed that both of the other two possessed a power- ful depressant action on the heart, and in comparatively small doses would produce fatal effects when given to animals. These statements, particularly in regard to para-cresotic acid, were important, as this acid was sup- posed to be less toxic than salicylic acid, and had been recommended to be used in medicine as a substitute. To verify those statements further experiments were made by Professor Charteris, and the results were published in the British Medical Journal for March 28, 1891. His experiments proved that both acids were active poisons, and rapidly caused death when administered to animals by means of an hypodermic injection. His conclusions are that the lethal dose of the para-cresotic acid is about three grains per pound-weight of the animal, and that one grain of the ortho-cresotic acid would have the same effect. These doses were fatal within three hours, the toxic symptoms following immediately upon the use of the drug, and he considers that much smaller doses would also prove fatal, but after a more prolonged inter- val. Further experiments were made by combining the two acids, and it was found that the fatal quantity was less than when they were administered separately. The acids were also used when added to pure salicylic acid, and this combination added to the toxic power of the cre- sotic acids. One grain of para-cresotic acid and one grain of the ortho-cresotic acid were dissolved with twenty grains of salicylic acid, and experiments showed that one- quarter of a grain of each cresotic acid, with four and one-half grains of salicylic acid, proved fatal to an animal weighing two pounds. Chemical experiments were also made which led to im- portant results, and proved bow essential the degree of crystallization and the melting-point are as means of indicating the purity of salicylic acid. He found that when either of the cresotic acids was added to pure salicylic acid, dissolved and recrystallized, the departure from the large and beautiful crystals of the latter was in direct ratio to the degree of contamination, and when the amount of impurity was great, an amorphous powder was the result, and the acids had to be redissolved several times before crystals could be obtained. The practical conclusion to be drawn from this is, that the difference in degree of crystallization allowed by the Pharmacopoeia between the natural and artificial salicylic acid allows a certain percentage of the cresotic acid to be present. With regard to the melting-point, it was also shown that 156.8° C., allowed by the British Pharmaco- poeia, was too low, and permitted the same impurities to be retained. The experiment showed that an artificial acid could be prepared as pure as that obtained from the nat- ural sources, and it was urged that in the revised Pharma- copoeia these tests should be insisted upon and the stand- ard of purity raised. The following is a tabular state- ment of the results of experiments made to determine the melting-point of the various mixtures : Natural salicylic acid of commerce 157.0° C. Artificial salicylic acid of commerce 156.0° C. Equal parts of salicylic acid and other cresotic acid, dissolved and crystallized ' 136.0° C. Equal parts of salicylic acid and para-cresotic acid, dissolved and crystallized 128.5° C. Twenty grains salicylic acid and one grain ortho-cresotic acid, dissolved and crystallized 152.5° C. Twenty grains salicylic acid and one grain para-cresotic acid, dissolved and crystallized 152.0° C. Sixty grains salicylic acid and one grain ortho-cresotic acid, dis- solved and crystallized five times 156.0° C. Sixty grains salicylic acid and one grain para-cresotic acid, dis- solved and crystallized six times 154.5° C. Ninety-seven grains salicylic acid, two grains para-, and one grain ortho-cresotic acid, dissolved and crystallized 155.0° C. The only preparation of these acids that has been pre- pared for therapeutic purposes is the para-cresotate of sodium. It is a white, fine, crystalline powder, with a slightly bitter taste, soluble in twenty-four parts of warm water. It is said to possess antipyretic and antirheumatic properties similar to those of salicylate of soda, but in a lesser degree. It, however, has the advantage of not dis- turbing the digestive organs. Although it has been shown that the acid base has such decided toxic proper- ties, this salt is said to be quite harmless, and may be given in doses of forty-five grains a day, for several days in succession, without any ill effects. The dose recom- mended is, according to the patient's age, from one and one-half grain to twenty-three grains, repeated three or four times a day. It is also reported to be of use as an antipyretic in pneumonia and typhus fever. In children it has been used in gastro-intestinal catarrh as an intes- tinal antiseptic. Beaumont Small. DAWLISH. A popular and pleasant seaside resort in Devonshire, England. It is about equidistant from Ex- mouth and Teignmouth. The English patronize the place at all seasons, but its chief attraction is a fine beach which is used in summer. The climate is not as equable and mild as that of Torquay, nor is the place as fashion- able and expensive. Dawlish rests on gravelly soil, which, in view of the large amount of rainfall, is obvi- ously a great advantage. It is cooler in summer than the resorts nearer London. The climate is humid, and, 206 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Cresol. Death, Origin of. while sedative, is rather relaxing. The indications are the usual ones for healthy seaside resorts ; and the place is especially to be recommended for those conditions which a too bracing climate might injuriously affect. It is not an international resort, being visited by the British only. Edmund C. Wendt. DEATH, ORIGIN OF. Physiological Theories.- Living things, in the forms most familiar to us, at least, all grow old and die. We infer that this fate is universal with something of the same certainty with which we prophesy that a stone thrown into the air at any spot what- soever will fall back again to the earth's surface. On the other hand, it is equally a commonplace of observation that the death of the individual does not mean the death of the race, and, inasmuch as every living thing is directly sprung from a preceding form,-omne vivum e vivo,- we may assume that the continuity of life has never been interrupted, and never will be. If the environment re- mains as favorable in the future as it has been in the past, living things will continue in unbroken succession for all time. From this stand-point we may speak justly of living matter as possessing immortality, or, at least, potential immortality, since it has unlimited powers of propagation. It is one of the final aims of biological speculation to reconcile these two apparently paradoxi- cal properties of living matter ; to furnish a satisfactory hypothesis which shall explain the occurrence of old age and death in the individual, and at the same time ac- count for the possibility of unending existence for the race, which is implied in the fact of reproduction. In speculations of this character we must, moreover, keep clearly in mind that forms of living matter are not stable, in the same sense that forms of dead matter are. A given animal exists for a period of five years; but we are all perfectly well aware that no portion of the living substance of this animal has remained actually the same throughout this time ; i.e., the atoms of C, H, O, N, S, P, which constituted the living matter in the beginning, were replaced very early by others brought in with the food. What has remained unchanged through the indi- vidual's life has been, on the physiological side, a form of activity, and, on the morphological and chemical side, a material substratum of a practically definite composi- tion. However familiar this fact may be, it is, after all, the great distinctive feature of life-or rather, of living matter. We express in the single word assimilation, or nutrition, that property which separates living matter from dead. As long as any particle of matter is in the living form, just so long has it the creative power of con- verting dead food into living substance like itself. Throughout its period of existence there is a steady stream of dead matter coming to it to be rearranged into the living form, and an equally continuous outflow of dead material from it which had once been in the living form. Nothing can make this conception clearer than Huxley's simile of the whirlpool at Niagara,-which fits so well as an illustration of the ever-changing particles which make up the unchanging form of life. From this point of view we may say that living matter is never actually the same, yet it must be evident that, in respect, of any given mass of that body which we call protoplasm, it can only reproduce itself in its offspring by transmit- ting a portion of its actual substance. The formation of a new organism from this transmitted germ is therefore, from a chemical stand-point, no more a creation of a new being or of new living material, than is the continued ex- istence of the parent form throughout its period of nat- ural life. As far as the mere external phenomena of senility are concerned they may be observed and recorded. In the human being this has been done with more or less care. The coming on of the signs of old age in the different tissues, the rate of its normal development, and the con- ditions which hasten or retard its development, are known to a certain extent, though they have not been investi- gated with the carefulness of detail which scientific ex- actness requires. We cannot expect any solid advance in our knowledge of the development of old age until the (SUPPLEMENT.) statistics, which may be determined by experiment and observation, have been recorded. The superficial signs of old age are spoken of usually in the text-books of physiology. In the old, the bones become more brittle because of a continually increasing excess of deposits of inorganic salts; the cartilages become more rigid and cal- careous for the same reason ; the elasticity of the lens of the eye decreases, bringing on imperfect accommodation ; the muscles atrophy and lose their physiological mobility, as shown by the lessened vigor of their contractions and their diminished elasticity ; the hairs lose their pigment, etc. It is important to notice that these signs of dete- rioration in the machinery of life do not make their appearance first during or after the period of maturity, but begin to develop from the time of birth, or possibly before. At ten years of age the near point of distinct vision is 7 ctm. from the eye, at twenty it has lengthened to 10 ctm., at forty years of age it is 22 ctm., at sixty years it is 100 ctm., and so on. The long-sightedness of old age begins to develop in early childhood, and results physiologically from a continual diminution in the elasticity of the lens. We obtain similar facts if we measure the rate of growth of the body throughout life. According to the somewhat unreliable statistics of Quete- let, the average male child weighs at birth 6| pounds. At the end of the first year it will weigh 18| pounds, a gain of 12 pounds. At the end of the second year it will weigh 23 pounds, a gain of only 4| pounds. And so on to full maturity the rate of increase each year falls rapidly. If we measure the rate of growth by the increase in height instead of by the increase in weight, we find that in the first year the gain is 148 mm., in the second year it has fallen to 93 mm., in the third to 72 mm., from the twentieth to the twenty-fifth year it averages 12 mm., and from the twenty-fifth to the thirtieth year only 0.8 mm., while in extreme old age it becomes a negative quan- tity. In a recent paper Minot has given the results of a laborious research upon the growth of guinea-pigs, which show much more clearly and accurately the same gen- eral fact of a decrease in the rate of growth beginning shortly after birth. Minot bases his figures upon observa- tions taken daily. He defines the term "rate of growth " with an exactness not hitherto employed, in that he calls attention to the fact that usually, in considering the rate of increase, the actual increment at different periods is given instead of the proportionate increment. In other words, if an animal in successive periods gains in absolute quantities only the same amount in weight or height, its rate of growth is in reality decreasing, since proportion- ately to the weight of the whole animal the increase has been less and less. Making use of his short periods of twenty-four hours, and expressing the rate of growth as the fraction of weight added during that period, he finds that, after the animal recovers from a short post- natal retardation of growth, the rate of growth dimin- ishes during life, at first rapidly, and afterward more slowly. It follows from these facts, that what we may call the creative power of growth, or better, the creative power of assimilation, which measures the capacity of living matter to form matter like itself, decreases steadily from birth. Like a stone projected upward, the initial velocity begins to fall from the outstart. As the height to which the stone travels may be taken as a measure of the force with which it was thrown, so the length of life in any individual may be taken as a measure of the power or capacity of assimilation with which the germ of that individual started its career. When the power of assimi- lation is insufficient to replace the wastes of nutrition then death for that tissue is at hand. Whatever may be the internal causes which lead to this diminution, and thus serve to bring on old age, we are safe in saying that they be- gin to make themselves felt in the very first years of post- natal life. The curve of vitality-to use a much-abused but convenient word-does not rise from birth, reach its maximum in the vigor of maturity, and fall in old age, but begins to fall steadily, though not uniformly, from the beginning of life. To mankind as individual organisms old age and death are inevitable, but it is interesting to inquire what may 207 Death, Origin of. Death, Origin of. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) be considered as the longest possible life under the most favorable conditions this world is likely to afford. We can answer this only by searching the records. If we put aside the oldest accounts on the ground of uncer- tainty as to the unit of time, and make our estimates on the basis of comparatively modern statistics, we may put the maximum age as lying somewhere between one hun- dred and twenty and one hundred and eighty years. Perhaps the most celebrated case of longevity is that of Thomas Parr, an account of whose life, together with the results of a post-mortem examination made by Har- vey, may be found in the third volume of the " Philo- sophical Transactions," p. 886. The account relates " that he was a poor countryman of Shropshire, whence he was brought up by the Right Honorable Thomas, Earl of Arundel and Surrey, and that he died after he had outlived nine princes, in the tenth year of the tenth of them, at the age of one hundred and fifty-two years and nine months." Other interesting extracts from the let- ter of Harvey are as follows : " The cartilages of the sternum were not more bony than the others, but flexile and soft." " The cause of his death was imputed chiefly to the change of food and air ; forasmuch as coming out of a clear, thin, and free air, he came into the thick air of London, and after a constant, plain, and homely country diet, he was taken into a splendid family where he fed high and drunk plentifully of the best wines." " He was able, even to the hundred and thirtieth year of his age, to do any husbandman's work, even threshing of corn." It is also stated that he married a widow when one hundred and twenty years of age, and from her own statement had frequent sexual intercourse with her. In an essay by Pfliiger on macrobiotics, he refers to other re- corded cases of unusual longevity. H. Jenkins, a native of Yorkshire, died, in 1670, at the age of one hundred and sixty-nine. It is related that on one occasion, when brought before a justice to testify with reference to an event which had occurred one hundred and forty years before, he appeared accompanied by his two sons, aged one hundred and two and one hundred years, respec- tively. A more remarkable case still is that of Kentigern, or Saint Mungo, founder of the Cathedral of Glasgow, who reached an age of one hundred and eighty-five, if we may trust the accounts of his life on record. Among the exceptional cases recorded some are stated to have been unusually temperate in their habits of life, while others paid no regard to such precautions. In this last category Pfliiger mentions one Brawn, who reached an age of one hundred and twenty, although his tomb- stone records the fact that he was a confirmed drunkard. Outside of such evidence as this, it is evident that excep- tional longevity cannot be referred solely to careful ob- servance of hygienic conditions. We must explain it, in general terms, as due to an unusual power of assimila- tion in the living substance composing the tissues, and that this tendency to long life is inherited may be ac- cepted as demonstrated by the statistics of life insurance. At the present day we have numerous cases of persons passing the hundred-year mark by a few years, so that this age cannot be regarded as very unusual. However, leaving aside the reproductive cells, death sooner or later comes to the rest of the cells of the body, no matter how favorable the environments of life may be. It is not altogether hopeless to inquire into the causes which bring this about, though naturally any such investigation is largely made up of speculation of a very general character. We may define death as a cessa- tion of life. In order, therefore, to arrive at even a gen- eral conception of its cause one must first define as clearly as possible what is meant by life. Spencer's definition is perhaps the one most familiar to educated persons. Ac- cording to him life is the continual adjustment of inter- nal to external relations. When properly analyzed the definition includes a great deal, and it is difficult to criti- cise it justly. But the physiologist will certainly object to it, because it attempts to present, in the most general terms, only the ensemble of properties manifested by liv- ing matter without pretending to trace these properties in any causative way to the physical substance which manifests them. It is as though one defined light by enumerating its chemical and physiological effects in- stead of referring it to vibrations of the ether. For the physiologist an adequate definition of life must be one which connects its phenomena with the chemical struct- ure of living matter. As the chemist may deduce the chief properties of a salt from a knowledge of the struct- ure of its molecule, so the physiologist believes that a scientific explanation of life-that is, of the phenomena of assimilation and reproduction-can only be obtained by discovering the essential chemical structure of the living molecule. To this end all biological work tends. The adjustment of internal to external relations, and the interaction of the different organs which brings about this adjustment, should be deducible from the chemical structure of living matter in somewhat the same way that the adjustments or reactions of benzine to different external conditions may be foretold from a knowledge of its molecular structure. That this kind of explanation of life is not inconceivably remote is demonstrated by the fact that several chemical theories have been seriously pro- posed and applied in some detail. Pfluger, for example, suggests that the essential difference between dead and living albumin lies in the grouping of the nitrogen in the molecule. In dead albumin it may exist in the form of an ammonia compound, while in albumin which is living it occurs in part, at least, in the cyanogen grouping. As something approaching scientific evidence for this view he asserts that the oxidation products of dead albu- minous bodies-that is, as far as the nitrogen is concerned -are always ammonia compounds, amines, or amido- acids, while the end products of the oxidations of living substances may be classed among the cyanogen bodies. Moreover, the cyanogen compounds are characterized by their instability, and this is likewise one of the most prominent phenomena exhibited by living substances; it is doubtless the chemical cause of what is known as the irritability of living things. Cyanogen compounds also exhibit, in a striking way, a tendency to polyme- rize, and Pfltiger suggests that this property of polymeri- zation may be the essence of what we speak of in general as assimilation or nutrition, by which the living mole- cule takes into itself the molecule of dead albumin. In- deed, says Pfluger, we may may look upon the molecule of cyanic acid as showing properties intermediate between those of living and dead matter, as a half-living sub- stance. In a similar way Loew and Bokorney attempt to explain the peculiar properties of living matter on the supposition that its molecule contains an aldehyde group. They find that living protoplasm, in certain plant-cells at least, has the property of reducing silver nitrate from alkaline solutions, while dead proteid has no such action. They infer that this reducing power is caused by the presence of an aldehyde group, and they give a scheme showing that formic aldehyde, by union with ammonia, may produce aspartic aldehyde, and this, by condensation and reduction, with the addition of S, will give, or might give, a compound of the molecular formula of proteid, which as long as it retained the aldehyde grouping would be living proteid, and would form the basis of living protoplasm. Latham attempts to combine the theories of Loew and Pfluger by supposing that living proteid is composed of a chain of cyan alcohols, united to a benzine nucleus, thus explaining the irritability or instability of living proteid, as well as its reducing action. However inadequate and premature such hypotheses may seem at present, they at least serve to demonstrate the fact that the physiologists and chemists are looking forward to a definition of life based upon a knowledge of the chemical structure of the substance through which it is made manifest. Proceeding from his conception of what constitutes life, Spencer defines natural death as a want of corre- spondence between the internal and external relations. Perfect correspondence would mean eternal existence. If the organism could adapt itself to every change in its environment, old age and death would be impossible. It is difficult to understand the full significance of Spen- cer's language. Taken literally it seems to assert noth- 208 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Death, Origin of. Death, Origin of. ing more than that death is a cessation of life. It adds nothing at all to our knowledge of the causes leading to this cessation, nor does it indicate any fruitful line of in- vestigation. If, however, Spencer means that the fatal want of correspondence may come from without ; that is, from changes in environment to which no adequate adaptation can be made by the organism, and in many passages this seems to be implied, then his view is op- posed to that accepted by most physiologists. They, the physiologists, believe in general that although the environ- ment were perfect and unchangeable, yet by virtue of in- herent changes in the organism itself the assimilative powers would inevitably grow weaker and finally cease with death. In want of a more exact knowledge of the structure of the living molecule and the changes in struct- ure which come on in old age, the physiologist expresses his ideas of the general nature of these changes by similes and metaphors more or less apt. We may com- pare the living organism to a clock, the mainspring of which is so constructed that in consequence of slowly developing molecular changes it suffers a gradual loss of elasticity. In such a mechanism there will come a time when "winding the clock up" will no longer make it run, since energy can no longer be stored in the spring. We may imagine this loss of elasticity to develop grad- ually, giving stages that may be roughly compared to the periods of life. To carry out the simile, it is the food we eat and the oxygen we breathe which take the place of the winding force. In consequence of a slowly de- veloping molecular change in the organism, this energy is less efficiently utilized as the individual grows older. The clock runs more feebly and needs relatively more frequent winding, until at last the elasticity is gone, the power of assimilation is insufficient, and we have what we call natural death. In complex organisms like ourselves this failure of assimilation may come first to some one organ, such as the heart or the nervous system, and through its collapse the organism as a whole ceases to exist. In the nature of the case natu- ral death cannot come to every organ of the body at the same time, so that the death of a portion, perhaps from the stand-point of weight, the larger portion of the body, must always be accidental, as, for example, from a shut- ting off of the blood-supply due to natural death of the heart. But this consideration does not affect the general conception of the liability of all the organs to a similar fate. Rightly or wrongly, it is, or has been, a well- nigh universal belief that every organism and every bit of living matter in an organism has only a limited dura- tion of life, no matter how favorable the external condi- tions may be. In striking opposition to this view, Weissmann, in a recent series of essays upon the duration of life, has at- tempted to demonstrate the essential immortality of liv- ing matter, or, in other words, to show that death is not an inherent necessity of life, but an acquisition or adap- tation on the part of living things. These essays have aroused a wide-spread interest and discussion among biologists, and are probably the most important specula- tions of recent times upon the origin and meaning of death. Weissmann carries the problem back to the low- est forms of life, the unicellular organisms or protozoa. Whatever in this regard is true of them must be looked upon as being or as having been true for living things in general, since modern biological doctrines trace the evo- lution of life from these forms, and modern morphology has demonstrated that all complex forms of life are in fact mere colonies or collections of unicellular organisms. If we study one of the protozoa, the amoeba for instance, which has always been taken as the archetype of life, we find that it is a complete cell ; that it feeds, and as- similates, and excretes ; that it increases in size, and finally reproduces by simple fission, forming two new in- dividuals, or daughter-cells. In this last process we have the disappearance of one old individual and the for- mation of two new ones, nevertheless there is no death. To speak of the disappearance of the parent cell as an example of death, as some have done, is a mere figura- tive use of language. There is no death in such a (SUPPLEMEN I'.) change, because, as Weissmann puts it, there is no corpse. If we consider the two daughter-cells produced by the fusion, we find not only that they are similar mor- phologically, but that each of them , has possibilities of growth and reproduction equal to those shown by the pa- rent form ;-there is apparently no reason why such a pro- cess should not go on indefinitely. Amoeba?, as we find them under the microscope, show no signs of old age ; the daughter-cells are not less capable of reproduction than the parent cell. Il is permissible to suppose that if a single amoeba were given a favorable environment it would in time produce an infinite number of descendants, each of them possessing in turn the same unlimited possi- bilities of multiplication. This is precisely the hypothe- sis which Weissmann makes when he says that living matter is potentially immortal. It is an alternative hy- pothesis to the one usually adopted, and Weissmann's contribution to the subject comes not so much from his adoption of this view as from the application he makes of it in considering the higher forms of life in which death is an indisputable reality. Weissmann's theory of the origin of death among the metazoa is developed directly from his hypothesis that living matter was originally incapa- ble of natural death. His direct statement that the sim- plest unicellular forms of life to-day probably retain this primitive constitution of protoplasm has not, however, passed unchallenged. Maupas has made an experimen- tal test of the statement in some very interesting observa- tions. He set himself to observe certain unicellular ani- mals throughout an extended period, when placed under the most favorable conditions for growth and multiplica- tion. The infusoria were chosen for experiment. After making careful observations upon the best conditions of temperature and food, an individual was selected, placed upon a microscopic slide in a suitable moist chamber, and kept under the most favorable conditions possible for propagation. A faithful record was kept each day of the increase in number through multiplica- tion by division of the specimen chosen for study. After the increase had reached some hundreds of individuals, one of them was again isolated and allowed to multiply, and so on until unmistakable signs of what he calls a senile degeneration became apparent in the offspring. His experiments lasted for a variable time. In no case were the observations carried over less than fourteen days, and in the case of stylonichia pustulata, upon which the most careful experiments were made, the successive progeny were cultivated for nearly five months. The rate of growth in some of the species was incredi- bly fast. He estimates that in six and one-half days a single stylonichia, at a temperature of 25° to 26° C., might produce by repeated fissions a body of protoplasm weigh- ing one kilogramme, and in thirty days a mass of pro- toplasm a million times larger than the sun. He was able to observe that after a certain number of generations the progeny began to show signs of a physiological de- cline. The new animals formed were smaller than nor- mal, seemed weaker, were not so well provided with cilia, and the nuclei contained within them gave micro- scopical evidence of pathological changes. Maupas looks upon this result as proof of a genuine senility which would have resulted-had the process of isolation been continued sufficiently long-in the natural death of all the descendants, despite the most favorable conditions for liv- ing. After a colony began to show signs of old age he found that if one of the animals was taken out and mixed with another lot having a different ancestry, conjugation took place. The weakened infusorian united sexually with one of the more youthful forms, and rejuvenes- cence was thereby secured. The descendants of this pair multiplied again with the original vigor and gave rise to normal healthy offspring. Weissmann takes exception to these experiments. The infusoria are the most highly developed of the unicellular animals, show- ing a marked degree of specialization of structure. Fur- thermore they are known to conjugate at certain periods in their life history. A pair will come together and ex- change a portion of their nuclear material, after which 209 Death, Origin of. Death, Origin of. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. each begins to multiply by simple fission with renewed vigor for a certain undetermined period. It may be that in so highly a differentiated form the primitive reproduc- tive power of protoplasm has been specialized in a particu- lar structure of the cell, as in the higher animals it has been reserved only to the germ-cells ; so that in this re- gard the infusoria might be classed with the metazoa rather than with the protozoa. Moreover, it may be doubted whether Maupas really kept his captive infusoria under perfectly normal conditions. Possibly the experi- ment could be made with greater certainty of success in this particular by using bacteria. Granting, however, that no exception can be taken to the experiments as made by Maupas, and that his results are correct, Weissmann contends that in the more primitive forms, in which reproduction is always by simple fission and anything approximating sexual conjugation is unknown, his fundamental hypothesis must still be true-death can occur only by accident, and not by natural decay. In the amoebae, bacteria, and similar forms of life no con- jugation has been discovered. While the conditions of life are favorable, growth and multiplication go steadily on. When the conditions of life are unfavorable-e.g., when moisture is withdrawn-forms like the amoeba may become encysted and cease to show the properties of living matter until more favorable conditions pre- vail. Gbtte has seized upon this process .of encystment as the equivalent of death, but we will speak of the theory of this author after Weissmann's theory has been stated. Let us assume that Weissmann is right in his fundamen- tal hypothesis, and that the first forms of life were poten- tially immortal, as the simplest forms of life are to-day. What, then, has become of that immortality in organisms like ourselves ? What was the origin of death ? Weiss- mann makes the supposition that in the higher animals we have two kinds of living matter, one composing the mass of the body, which unquestionably is subject to a natural death, and one composing the reproductive cells, which is evidently possessed of potential immortality, since if fertilized and kept under proper conditions it will give rise to . an infinite number of descendants. The former, the mortal, he speaks of as somatoplasm, the latter, the immortal, as germ-plasm. Furthermore, he supposes that the germ-plasm, constituting the re- productive cells in any individual, is directly derived from the fertilized ovum from which that individual developed. The fertilized ovum is a single cell; by cell division it multiplies a billion-fold and more to make the body. Of this infinite number of cells those which make up the muscles, skin, etc., although directly de- rived from the ovum, have become specialized physio- logically as well as morphologically to fit them for the performance of their special functions, and at the same time they have lost the potential power of immortality which characterized the germ-plasm of the ovum. But among this infinite number of cells there are always cer- tain ones which do not undergo specialization ; they re- main like the ovum from which they were formed ; they retain a portion of the germ-plasm with its powers of im- mortality, and these cells become the ova and spermato- zoa from which new organisms may be developed in turn. If we carry back this conception through the line of an- cestral forms from which man has been developed, it in- volves the idea that the germ plasm has been actually continuous throughout the history of living things, and that it represents the immortal protoplasm of the unicel- lular forms from which the metazoa were evolved. This is the doctrine which goes by the name of the " continuity of the germ-plasm," and in the form in which it is pre- sented makes one of the most original contributions given to biology within recent years. The question as we have it before us now may be stated in this way : The unicel- lular forms arc potentially immortal; the many-celled ani- mals contain an immortal germ-plasm and a mortal soma- toplasm, and yet the many-celled animals have been directly derived from the unicellular forms. In the first many-celled animals produced, the different cells must have had similar properties ; they must all have been (SUPPLEMENT.) equivalent to reproductive cells. But subsequently, after specialization of structure and physiological divis- ion of labor had become established, it happened that the vast majority of the cells of the body, all those in fact that had undergone differentiation in structure and func- tion, lost the power of perfect nutrition, and became sub- ject to old age and death. Upon what biological grounds can we explain this variation ? Weissmann refers it to the operation of the law of natural selection and states his theory briefly in saying that death is an adaptation, acquired because of its utility to the race on th? one hand, and, on the other hand, because, after the beginning of a differentiation in function among the cells, the posses- sion of immortality by all the cells was no longer any value to the race, and therefore was not brought under the preserving influence of natural selection. With reference to the first of these reasons, the utility of death to the race, it must be borne in mind that the operation of the law of natural selection is directed en- tirely toward the perpetuation of the species. Anything that endangers this perpetuity will be discarded, and the duration of life of the individual is a point worth fighting for, or against, only in so far as it influences the struggle for existence of the species. If natural death had not appeared, and creatures could have been destroyed only by fatally adverse changes in their environment, then we may imagine that every species would have been bur- dened in its fight for existence by individuals whose physical value had been impaired by previous minor ac- cidents, such as loss of limbs, etc. There would have been, from the pitiless stand-point of natural selection, many useless mouths to feed. Weissmann was inclined in his first essays to lay great stress upon this point, but in later years he has emphasized chiefly the second of the reasons given above, namely, that immortality was lost to the non-reproductive cells because, being of no direct value in the perpetuation of the species, they were not acted upon and preserved by natural selection. This tendency of structures to retrograde and disappear when their value to the species becomes nil, even though they may not be actively injurious or burdensome, because natural selection no longer acts to preserve them, is something of a new idea in biology. Weissmann attaches great im- portance to it, and has coined for it the term panmixia. A simple example of its action is seen in the absence of eyes in the cave-inhabiting animals. Many of the Crus- tacea living in the dark caves have lost their eyes-by panmixia, Weissmann would say ; that is, in their peculiar environment their eyes are no longer of use, and they have therefore degenerated and disappeared, in the course of generations, by the lack of the direct preservative in- fluence of natural selection. So Weissmann thinks that the original immortality of living matter became lost to the non-reproductive cells in the many-celled animals because, being of no value to the species, indeed, on the contrary, threatening the species with an unnecessary burden, natural selection let it alone. Many eminent biologists have found a logical difficulty in understanding how from cells originally immortal cells that were mortal could have been derived by differ- entiation of any kind. They hold that natural selection can only operate upon a structure which exists, it cannot create a thing outright. If living matter was all origi- nally immortal how could natural selection, by negative or positive action, produce mortality, if in some degree this latter property was not already inherent in living matter. As one of the objectors (St. George Mivart) puts it, the difficulty is to understand the first step, the beginning of something from nothing. Objections of this kind are of course fallacious ; it is curious that they should have been seriously made by eminent men. The words mor- tality and immortality do not stand for definite things ; they are not substances or entities, or whatever term of this kind one may choose to use. On the contrary, they are in this case merely convenient phrases to express the kind of nutrition going on in living things, whether it is self-perpetuating or self-limiting. They are properties which are connected with the physical or chemical struct- ure of the living molecule, and this latter is a thing 210 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES Death, Origin of. Death, Origin of. which does exist and may be acted upon and modified by natural selection in many ways. In accepting or refusing Weissmann's theory of the origin of death, everything seems to depend upon the validity of his fundamental hypothesis with regard to the absence of natural death among the primitive forms of life. If we admit that there are simple organisms, such as the bacteria or amoeba, which do not propagate by conjugation or by any method of multiplication other than simple fission, it would seem logically impossible for such a species to be perpetuated unless its protoplasm is exempt from senility. If we do not accept this solu- tion, then we must suppose either that there is some kind of sexual rejuvenation which has not yet been dis- covered in these particular forms, or that there is some process of molecular rejuvenation occurring at periods in the life-history of such forms which brings the living substance back to its primitive constitution and nutritive vigor. Gotte has clearly recognized this necessity, and has proposed a theory which is logically acceptable. Ac- cording to Gotte, death is a necessity immanent in life. As regards the unicellular forms of life, he avoids the difficulty which has just been described by assuming that the process of encystment is the death of the old individual and the beginning of a new one. Encystment, of course, is known to occur among the unicellular forms. During the process the visible evidences of life, such as movement, come to an end, to be renewed again after a certain period, or under more favorable conditions. Gotte believes that during the encystment a change of molecular structure takes place. There is first a dis- sociation or dissolution, which is an actual death, inas- much as the properties of living matter are lost. This, however, is succeeded by a stage of reconstruction with the formation of new protoplasm possessed of the prim- itive powers of assimilation, and capable of developing and multiplying for a certain period. This is obviously an hypothesis which it is practically impossible to test by chemical investigations. To the physiologist it will probably not be acceptable on theoretical grounds be- cause of the difficulty of conceiving how matter once in the dead form can again pass into the living form, as the result of spontaneous molecular activities, and with- out the aid of an exciting or liberating force. Dead matter, as we know it, is converted into the living form only by the process of assimilation on the part of matter already living, whereas the hypothesis of Gotte calls upon us to believe that the transition may take place by virtue of the inter-molecular movements in the dead matter itself. Encystment, then, according to the theory of Gotte, represents at the same time the primitive form of natural death and the primitive method of reproduc- tion. As the metazoa have been derived from the uni- cellular forms, he further assumes that among the former both natural death and reproduction have been acquired by direct inheritance. As in the protozoa reproduction and death stand in a causal relationship, so in the simpler forms of metazoa, e.g., in the orthonectidae, this con- nection is still maintained, inasmuch as the liberation of the ova results in the death of the individual. Among the higher forms the relationship between reproduction and death is not so evident, though the theory demands always a causal connection between the two processes. It will be evident from this brief statement of Gbtte's views that he differs from Weissmann, not only in his belief of the necessity and universality of death, but also in respect of the discontinuity of life. Among the pro- tozoa, which propagate by encystment, his theory denies that the new individual is directly sprung from the living substance of the parent cell. On the other hand, the general belief has been that in some way the continu- ity of life is maintained. Darwin's theory of pange- nesis, which was formulated to explain the phenomena of heredity, implies a continuity of living matter be- tween parent and child. It will be remembered that in this theory the ova and spermatozoa are supposed to contain minute germs, gemmules, thrown off from the different cells of the body and collected in the germ-cells. Under the proper physiological stimulation, the gem- (SUPPLEMENT.) mules develop into organs like those from which they were derived. The gemmules must be considered as living matter ; hence the theory implies a direct carrying over of living substance from parent to child, a con- tinuity of living matter at least. In contrast with this the theory of Weissmann supposes a direct continuity of germ-plasm, the essential part of the germ-cells of the child being an actual portion of the germ-protoplasm of the reproductive cells of the parents. The immortality of the germ-plasm and the direct continuity of the germ- plasm, are, then, the fundamental parts of Weissmann's theory, and his hypothesis of the origin of death as re- gards the somatoplasm follows naturally if we accept these premises. It will be observed, however, that Dar- win's pangenesis theory may also be considered as im- plying the essential immortality of the material compos- ing the germ-cells, although neither Darwin himself nor those who have made use of his theory have ever made a specific statement of this kind. In the older treatises upon the nature of death a dis- tinction was often made between molecular death and somatic death. The former term was meant to include those changes of disassimilation or katabolism, to use a more modern word, which are supposed to be in play in every bit of living matter, and to lead to the formation of dead waste material, such as urea, carbon dioxide, and water. Somatic death was used, as it is at the present time, to describe the final cessation of all vital activities in the body at large. It was supposed that we had here the production of dead from living matter by two entirely different methods. The term molecular death is ob- viously an unhappy one, and has fallen into disuse, although it is possible that it is an accurate statement of what takes place. The essential nature of the physio- logical oxidations which lead to the formation of the products of disassimilation is at present a subject of dis- cussion, and will probably remain so for a long time. Treating the subject in the most general way, it seems evident that in disassimilation one of two things may take place. If, for the sake of simplicity, we confine our attention to a single cell, then it is possible, on the one hand, that the formation of the wastes of nutrition is brought about by the actual death and disintegration of portions of the cytoplasm, their places being supplied by new living material formed in other parts of the cyto- plasm or in the nucleoplasm. Or, on the other hand, it is equally possible that in normal disassimilation no single living molecule undergoes total destruction. The process of dissociation may be such that only a portion of the molecule is split off, and lost from the cell as dead material, while the remainder of the molecule recon- structs itself from the food material of the cell-juices into the originally complex molecule of living matter. This, in fact, is the hypothesis of physiological oxidation which has been proposed by Pfliiger with special reference to the metabolisms of muscle during functional activity. His theoretical view's have much to recommend them, and some account of them is usually given in the text- books of physiology. Refebences. Spencer : Principles of Biology. Weissmann : Essays upon Heredity, and Kindred Biological Problems, vol. i. English Translation, 2d edition, 1891. GOtte: Ueber den Ursprung des Todes. Hamburg und Leipzig, 1883. Pfliiger : Ueber die Kunst der Verlangerung des Menschlfchen Lebens. Bonn, 189C. Contains also references to cases of unusual longevity, taken from Flourens, De la Longevity humaine ; Spottiswood, History of the Church of Scotland ; Ollendorff. Lebensdauer in Realencyclo- padie der gesammten Heilknnde, vol. viii., etc, Pfliiger: Archiv. f. d. gesammte Physiologie, vol. x. Harvey : Philosophical Transactions, vol. iii. Contains an account of the autopsy of Thomas Parr. Minot : Journal of Physiology, xii., 97. Senescence and Rejuvenation, Maupas : Archives de Zoologie experimental? et generate. 2me Serie, t. vi., p. 165. 1888. Loew and Bokorney : Die Chemische Kraftquelle im lebenden Proto- plasma. Munich, 1882. Containing a theory of the structure of living proteid. Latham : British Medical Journal, 1886, i. ; 629. Containing a theory of the structure of living proteid. Todd : Cyclopaedia of Anatomy and Physiology. Articles : Death, by J. A. Symonds; Age, by J. A. Symonds; Life, by W. B. Carpenter. These articles give full references to the older literature. IT. H. Howell. 211 Dermatol. Digestion. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. DERMATOL, the trade name for the subgallate of bis- muth, BiCTlIiOi, containing fifty-five per cent, of the oxide of bismuth. It is a fine, yellow powder, devoid of odor, quite insoluble in water or any of the ordinary sol- vents, free from irritating action, and non-poisonous. It has been introduced to replace iodoform, on ac- count of its freedom from many of the disagreeable qualities of that drug. It is not a bactericide, but prevents their growth or formation, and in this way compares favorably with iodo- form and aristol. Its beneficial action is due to its neu- tralizing the ptomaines produced. It is not only insoluble but also repels water, thus rendering the part unfavorable to the growth of bacteria. It is not so suited to the treatment of sloughing or sep- tic wounds as iodoform, nor is it sufficiently stimulat- ing in chronic indolent ulcers. It is most serviceable to promote cicatrization in healing surfaces, and in affections of the skin ; in burns, scalds, chancres, eczema, partic- ularly when characterized by much discharge, it has been used with marked success. In these cases the parts become dry on the second or third day of its use, and the relief is very marked. If the part is previously washed with an antiseptic lotion its action is greatly assisted. It may be applied by dusting on the part, or in the form of an ointment of one part in ten. It may with advantage replace oxide of zinc, starch, etc., as a dusting powder in scalded and denuded surfaces. In doses of thirty to ninety grains it has been given internally, as a substitute for the subnitrate, for diarrhoea in children, in phthisis, typhoid, etc., with good results. It may be given in wafers or as an emulsion. Beaumont Small. DIARRHCEA. If we are to credit the results of recent investigations, the symptomsand pathological conditions of diarrhoea, to a larger degree than we have supposed heretofore, are due to the products of bacterial action in the alimentary canal. It has been shown, almost con- clusively, that ptomaines develop in the intestines during the decomposition of food in diarrhoea, as well as some- times in the opposite condition of constipation, and the results of treatment show that in diarrhoeal states those medicaments are most useful which exercise a repressive, if not a destructive action upon bacterial growth. Numerous cases of obstinate constipation with anaemia and slight toxic symptoms have been promptly relieved by a free evacuation of the alimentary canal, and by the exhibition of antiseptic remedies like preparations of mercury, bismuth, and naphthol, strongly suggesting that some leucomaine poison must have been produced in the intestine, or cast into it, which, being absorbed, caused the mischief, and of which the constipation prevented the regular discharge. Cases of diarrhoea are not only benefited by germicide medicines taken by the mouth, but also by similar remedies introduced in the form of large enemas. In the treatment of diarrhoea the necessity of insuring perfect digestion of such food as is taken, and of keeping the intestinal canal free from abnormal decompositions, has been of late very much emphasized, and what we ought always to have understood is being recognized more than ever, that every particle of food taken that is not digested is a menace to the intestinal mucous mem- brane by the irritation its decomposition may light up. It should be a positive condition in the treatment of all cases, especially of the more chronic forms, of diarrhoea, to obviate that sort of indigestion or disorder ; and it is coming also to be recognized that such cases cannot be treated by an occasional dose of medicine, regardless of conditions and circumstances, but that the patient must be put upon a strict regimen, and that he cannot vary from it in any particular, or lose his courage or watchful- ness of himself for a day, without danger of a relapse. In the chronic cases the digestion may be conserved by various gastric and other tonics in small doses, and by peptogenic preparations, and by a most careful selection and preparation of food. The normal condition of freedom from vicious decom- (SUPPLEMENT.) positions in the intestinal canal may be conserved by moderate doses of salicylate of bismuth (2 to 5 grs.), sub- nitrate of bismuth (5 to 10 grs.), hydronaphthol or beta- naphthol, which may be taken in doses of 5 to 20 grains, or even more, without harm, calomel to gr.), bin- iodide of mercury to gr.), or bichloride of mercury gr.), and by salol (1 to 3 grs.), but the possible un- pleasant effect of the last upon the kidneys when given in large amount should lead to caution in its use. Arsen- ite of copper has been highly praised of late for diarrhoea, mostly for the acute forms, in very minute doses to Toirgr.), frequently repeated. It is a drug of superior value, both in the acute and chronic forms, and may be taken in somewhat larger doses than those mentioned above. There would seem to be no objection to using it in small doses regularly for a long time in those cases of debility which show a tendency to diarrhoea from even the smallest variation from the usual dietary or hygienic con- ditions ; for then its wholesome effect on the intestinal canal would be a sustained one, and the general tonic effect of the arsenic wrould be experienced. It has been discovered recently that a form of amoeba (amoeba coli) swarms in the intestinal canal at times and causes dysentery of such a character that it is liable to be mistaken for one of the forms of diarrhoea described in the original article on this subject in Vol. II. The dejections are liable to much variety in their character, and the di- arrhoea to alternate with constipation. The sanguineous and mucoid qualities of the discharges are less marked than in ordinary dysentery, although blood and thick mucus may freely appear at times. The disease lasts long and is very intractable to treatment, and the mor- tality is high. It is remarkably prone to produce com- plications, especially perforation, peritonitis, abscess of the liver, and, consecutive to it, of the lung. Fever is not a marked symptom in the disease when uncomplicated. Ulceration of the intestinal wall occurs in all bad cases, -deep excavations and underminings, but with little true suppuration. The amoebae can easily be found in the dis- charges, and, of course, are the sole diagnostic sign. Their discovery in small numbers in the stools in any case would not absolutely prove that they were the cause of a diarrhoea, since they are sometimes discovered in the dejections of health. As a matter of fact, in these cases, the amoebae swarm in the stools, as well as in the prod- ucts of the abscesses of the liver and of the lung. Injections of substances destructive to the parasites seem the most useful treatment. Their complete de- struction in the walls of the intestines is evidently dilli- cult, owing to the unavoidable obstacles to carrying effective quantities of the medicament to every nidus of their multiplication in the irregularities of the intestinal lining, as well as in the ulcers and excavations. The treatment of many of the more chronic forms of diarrhoea by enteroclysis, or injections of sterilized water containing various medicaments, is very properly coming more into vogue. A salt solution, of 6 or 7 parts of chloride of sodium to the 1,000 of water, is best for irriga- tion, and weak solutions of tannic acid (1 to 3 drachms to the quart) or boric acid, for destruction or repression of micro-organisms, work best. For any ordinary case of diarrhoea it is unsafe to use corrosive sublimate or car- bolic acid solutions ; they are too poisonous, whereas the tannic and boric acids, in proper quantities, are quite harmless, as is also hydronaphthol, which may be used in a saturated solution. Occasionally a slight admixture of some opiate is required, but ought never to be used unless demanded by pain or irritation of some sort. This method of medication is not by any means as dif- ficult to use as it would seem, since almost an unlimited amount of water can easily be introduced into the bowel, provided the patient is horizontal, and the movement of the water into the body is extremely slow, and the stream perfectly continuous from a fountain syringe, the reser- voir of which is elevated but a few inches. No pulsat- ing stream will do ; the water must be, when it reaches the intestine, as warm as the body, and may be two de- grees above the normal heat; it must be at least four de- grees above normal body heat as it leaves the bag. If 212 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Dermatol. Digestion. too much is introduced for the large intestine to contain, it readily passes the ileocaecal valve into the small intes- tine, and, if further relief is required, into the stomach and out through the mouth. With the precautions named, all the tenesmus disappears, and even little children receive the treatment without complaint. But slowness of intro- duction of the water is a precaution never to he forgotten. The method has several distinct advantages : it washes the intestines free of mucus and decomposing and de- composed substances of numerous kinds ; it washes away vast myriads of microbes, which may be wholly or in part responsible for keeping up the diarrhoea, if not of causing it originally ; and it kills or lessens the growth and virulence of swarms of them that remain. In dys- entery, especially, a treatment of this sort is in the high- est degree useful when practised once or twice each day, particularly when the tannic acid is used ; only, to be most effective, it should be often repeated, or, better still, employed as an irrigation with a long double tube, hav- ing a large and free outflow. This procedure should be carried out once or twice each day. The treatment, moreover, is a rational application of the principles so effective on other parts of the body, namely, a thorough cleansing of inflamed surfaces, the removal from them of substances, however produced, which are capable of causing irritation, and the soothing of them by appropriate medicines. There is perhaps no form of diarrhoea where the carry- ing out of these principles is more demanded than in the summer diarrhoeas of children, often improperly called cholera infantum, and in these this treatment deserves a freer trial. But in this class of patients it is specially important that the treatment be carried out with care, caution, and faithfulness. It unavoidably requires the hand of the physician or of a most carefully instructed nurse. The frequency of the injections should depend on the effect. The effect of each one should be to quiet the ir- ritation for a number of hours, and during this time the bowel should remain unmolested, the treatment being re- peated on a recurrence of the symptoms. No attempt should ever be made to pass a tube through the sigmoid flexure. The effort is rarely successful, and the danger from the use of a hard tube is great. Norman Bridge. DIEPPE. A fashionable watering-place, and one of the favorite sea-side resorts of the Parisian " monde." It is prettily situated on the coast of Normandy, at the mouth of the river d'Orques, and between high calcareous cliffs. The bathing season lasts from June to Septem- ber. To quote from Baughan (" The Northern Watering- Places of France "): " The life of the place seems con- centrated on the beach, and at the Etablissement des Bains de Mer. The beach is quite a mile long, and extends from the timber-yards near the jetty to the foot of the high cliff on which stands the Chateau, a pictu- resque old building with a square tower, now used as a barrack. The beach at Dieppe was once but a stretch of meadow-land, but now it is a fine promenade, laid out as an English garden, and bordered by stately hotels. Trees would be an improvement, but of these there are none, which is a pity, for the heat at noontide along the un- shaded promenade is something not to be endured. There is a wide and beautiful expanse of sea at Dieppe, and though the beach at high tide is of bowlders, when the sea goes out there are sands, but the bathing at high tide is, of course, on the bowlders, and this is one of the greatest disadvantages of Dieppe. " The Casino ami the Etablissement des Bains de Mer are the property of the town, and they are charmingly managed. They are to the southwest of the beach- just beneath the cliff on which stands the Chateau. The Etablissement is built in imitation of the Crystal palace, London, and contains a theatre and ball-room, several charming salons, a billiard-room, and a reading-room. It is surrounded by a well-laid-out garden, where there is a place set apart for children's sports, a gymnasium, and several pavilions where different games are played." (SUPPLEMENT.) Accommodation.-The principal hotels are the Royal, 1'Hotel de Bristol, le Grand Hotel des Bains, 1'Hotel de la Plage, and le Grand Hotel de Dieppe. All these hotels are situated along the beach, and are expensive. L'Hotel du Nord, Quai Henri IV.; 1'Hotel de la Paix, Grande Rue ; and 1'Hotel du Geant, Rue de Chene-Perce, are more moderate. Numerous interesting excursions can be made into the surrounding country. Of late years many English and American visitors are seen at Dieppe. Edmund G. Wendt. DIGESTION. The changes and additions now con- tributed to the articles furnished by the writer to the subject of " Digestion," the " Digestive Secretions," etc., are rendered necessary, in part, by the increase in our knowledge from new observations and experiments, but still more owing to an alteration in the point of view that must, sooner or later, work great, if not radical, changes in the whole of physiology. It is now being perceived that it is impossible to ex- plain vital processes entirely by the laws of physics and chemistry. The attempt to do so has led physiologists aside from the true path, and we are now obliged to con- fess failure and seek other ways. There is also a hopeful broadening taking place ; and it is not so common as it was to assume that, what holds for one animal applies to others, even though alike in many respects. Greater caution and breadth, and a truer insight, with less hasty generalization, will probably mark the physiology of the future. This has been very clearly illustrated by the views re- cently published on the subject of digestion, as the writer will endeavor to show. It would seem that we have been too ready to accept simple explanations, and to consider life processes as much less complicated than more recent investigations show them to be. Proteid Digestion.-It is still held that in peptic digestion, peptorte, or more properly peptones, are the final products of the action of gastric juice on proteids ; and that the process of digestion is one of hydration ; but between albumin on the one hand and peptones on the other, there are now recognized several bodies of distinct properties. The following tabular statement embodies the most recent views, and indicates the antecedents of the final peptones: Albumin. Hemi-albumin. Anti-albumin. Hemi-albumose. Hemi-peptone. Anti-albumose. Anti-peptone. Hemi-peptone may, by the pancreatic secretion, be split up into leucine, tyrosin, etc., but this is not true of anti- peptone. Albumoses may be classified chemically, according to the action on them of different reagents, thus : 1. Proto-albumose.-Soluble in cold and hot water, and in dilute saline solutions ; precipitated by saturation with magnesium sulphate or sodium chloride. 2. Hetero-albumose.-Insoluble in water ; soluble in cold solutions of sodium chloride of a strength of from one-half to fifteen per cent. ; precipitated by heating to 65° C., the coagulum being soluble in dilute acids and al - kalies. It is precipitated by alcohol, but, unlike other albumoses, is thus altered to an insoluble body, dysalbu- mose. Like the preceding, it is precipitated by satura- tion with neutral salts. 3. Deutero-albumose.-Soluble in cold and hot water; not precipitated by saturation with sodium chloride or magnesium sulphate, but thrown down by saturation with ammonium sulphate. It is in its reactions allied to the peptones, for it is not precipitated by copper sulphate, and only gives the nitric acid reaction in the presence of excess of salts. 213 Digestion. Digestion. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Variety of proteid. Hot and cold Hot and cold Satu ration Satu ration Nitric acid. C o p p er sul- Copper sul- C o p per sul- water. saline solu- tion, e.g., 1(1 per cent. Na Cl. with Na Cl or Mg SO4. with Am„ SO4. phate. phate and ammonia. phate and caustic soda or potash. Albumins. Soluble in cold, coagu- lated in hot, water. Soluble i n cold, coagu- lated in hot, solutions. Not precipi- tated. Precipitated. Precipitated in cold, not soluble on heating or only slight- ly- The same as albumins. Precipitated. Blue solution. Violet solu- tion. Globulins. Not soluble in either. The same as albumins. Precipitated. Precipitated. The same as albumins. The same as albumins. The same as albumins. Proto-albumose. Soluble i n both. Soluble in both. Precipitated. Precipitated. Precipitated in cold; pre- cipitate dis- solves with heat and re- appears on cooling. Precipitated. Violet solu- tion. Rose-red so- lution. Hetero-albumose. Insoluble, i.e., like globu- lins, precipi- table by di- alysis from saline solu- tions. Soluble i n both; partly precipitat- ed, but not coagula ted on heating to 65° 0. Precipitated. Precipitated. Precipitated in cold; pre- cipitate dis- solved with heat and re- appears on cooling. Precipitated. Violet solu- tion. Rose-red so- lution. Dentero-albumose. Soluble. Soluble. Not precipi- tated. Precipitated. This reaction only occurs in presence of excess of salt. Not precipi- tated. Violet solu- tion. Rose-red so- lution. Pe tone. Soluble. Soluble. Not precipi- tated. Not precipi- tated. Not precipi- tated. Not precipi- tated. Violet solu- tion. Rose-red so- lution. The above table, from Halliburtin's "Chemical Physi- ology and Pathology," puts the most recent information in a compact form. According to Neumeister, the relations of the various proteid bodies formed in the digestive process may be thus expressed : fatty acids and glycerine, from which result a certain proportion of soaps, yet there is reason to believe that the greater part of the fat finds its way into the blood as a very fine emulsion, or even as "molecular fat." The fact that, even in the absence of bile or pancreatic juice, some fat digestion may, if not at first, eventually take place in an animal, shows that we have been regard- ing digestion too much in a purely chemical light. Bile.-The tendency, in view of recent researches, is rather to confirm the opinions of those that held that the bile itself takes no essential part in digestion, though helpful to the pancreatic juice ; at the same time it must be said that a conservative-attitude is the most justifiable one at present. Faces.-Though actual experiment has not recently brought to light much that is new in regard to the com- position of faeces, it is still clear to the writer's mind that the facts of clinical medicine indicate that many harmful products are in all probability discharged from the body by means of the intestines. In other words, we must re- gard the intestine as a great excreting as well as secreting surface, and must believe that the faeces contain not only some of the altered digestive secretions and the indigesti- ble remnants of the food, but possibly numerous products of tissue-waste, either as they were formed in the cells of the various tissues, or as they were modified by the glandular and possibly other cells of the gut. A subject of which some notice may be taken is self- digestion of the stomach, etc. This is all the more nec- essary as the views that formerly prevailed indicate how much was overlooked. In this connection the writer begs leave to introduce an extract from his " Animal Physiology" (I). Appleton & Co., New York, 1889). " Self-Digestion of the Digestive Organs.-It has been found, both in man and other mammals, that when death follows in a healthy subject while gastric digestion is in active progress and the body is kept warm, a part of the stomach itself, and often adjacent organs, are digested, and the question is constantly being raised, Why does not the stomach digest itself during life? To this it has been answered that the gastric juice is con- stantly being neutralized by the alkaline blood ; and, again, that the very vitality of a tissue gives it the neces- sary resisting powers, a view contradicted by an experi- ment which is conclusive. If the legs of a living frog be allowed to hang against the inner walls of the stomach of a mammal, when gastric digestion is going on, they will be digested. "The first view (the alkalinity of the blood) would Albumin. Hemi-albumin. Anti-albumin. Proto-albumose. Hemi-deutero-albumose. Hetero-albumose. Ampho-deutero-albumose. Anti-albuminate. Anti-albumid. Hemi-peptone. Anti-deutero- albumose. From the above table it appears that albumin is made up of hemi-albumin and anti-albumin, and the subse- quent changes of each are indicated down to the final products in peptones, and all are to be regarded as stages in a hydration process. Primary albumoses are those formed directly from al- bumin, i.e., proto-albumose and hetero-albumose. Al- though this table shows that digestion is now regarded as a much more complex process than formerly, it seems to the writer that what we have ascertained is rather an indication of possibilities than actualities, and that our views may be expected to undergo great changes, if they are not shown to be wholly inadequate. It is also likely that the process of digestion of proteids may vary much for individuals, or even in the same individual at differ- ent times, not to mention differences for unlike groups of animals. But certain it is, that a modest and expectant attitude, in view of the radical modifications that have recently taken place in our ideas with regard to this sub- ject, is the only correct one. Besides, it is more and more apparent that conclusions founded on artificial or laboratory digestion are to be drawn with the greatest care. Digestion of Fat.-Owing to the more rational view now taken with regard to digestion generally, and with regard to the true nature of absorption, the digestion of fat is more readily comprehensible, though no very new light has been thrown on the action of those digestive juices that are concerned in altering the ingested fat. Though the pancreatic juice, especially when mixed with bile, has the power of splitting up neutral fats into Ampho-peptone. Anti-peptone. 214 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Digestion. Digestion. (SUPPLEMENT.) not suffice to explain why the pancreas, the secretion of which acts best in an alkaline medium, should not be digested. " It seems to us there is a good deal of misconception about the facts of the case. Observation on St. Martin shows that the. secretion of gastric juice runs parallel with the need of it, as dependent on the introduction of food, its quantity, quality, etc. Now, there can be little doubt that, if the stomach were abundantly bathed, when empty, with a large quantity of its own acid secretion, it would suffer to some extent at least. But this is never the case; the juice is carried off and mixed with the food. This food is in constant motion, and doubtless the inner portions of the cells-which may be regarded as the discharging region, the outer, next the blood-capillaries, being the chief manufacturing region of the digestive ferment-are frequently renewed. " Such considerations, though they seem to have been somewhat left out of the case, do not go to the bottom of the matter. Amoeba and kindred organisms do not digest themselves. Some believe that the little pulsatile vac- uoles of the infusorians are a sort of temporary digestive cavities. "But, to one who sees in the light of evolution, it must be clear that a structure could not have been evolved that would be self-destructive. " The difficulty here is that which lies at the very basis of all life. We might ask, Why do living things live, since they are constantly threatened with destruction from within as from without? Why do not the liver, kidney, and other glands that secrete noxious substances, poison themselves ? We cannot in detail explain these things ; but we wish to make it clear that the difficulty as regards the stomach is not peculiar to that gland, and that even from the ordinary point of view it has been exaggerated." The Movements of the Alimentary Tract and the Nervous Mechanisms Concerned.-So far as the movements of the tract are concerned, we find a lo- calization of function with an interdependence corre- sponding to anatomical differentiations. The movements of the oesophagus and stomach, for example, are more in- dependent than those of the rest of the digestive canal. Peristalsis naturally takes place in the region lying be- tween the stomach and the caecum, while the large gut, and especially the sigmoid flexure of the colon and the rectum, have a subordinate degree of independence in this respect. The nervous supply is more or less distinct in those regions of greatest localization of movement. Neverthe- less we recognize both in health and in disease, even in such parts as the small intestine, that there is a tendency for the peristalsis to be confined to one region, tempo- rarily in health, but for a protracted period of time in disease, as in colic. There is little new to add to what appeared in the origi- nal article on the movements of the oesophagus or the nerves concerned, and we have still a great deal to learn about the innervation of the stomach. Gaskell, acting on the suggestion furnished by the double nerve-supply of the heart, has projected a scheme for the sympathetic system which, as applied to the ali- mentary canal, has already yielded some definite results, and it seems probable that it will be shown that there is to this long muscular tube, as to the less obviously simi- larly formed organ the heart (tubular in embryonic life and also derived from the mesoblast), a double nervous supply of motor or augmenter and inhibitory fibres. The more we learn of the vagus, the more wonderful a nervous path does it appear to be. It contains both afferent and efferent fibres for the alimentary canal, fibres which seem to be continued through nerves bear- ing other names, as the splanchnic, to a very wide dis- tribution. Fig. 151 gives in a highly diagrammatic form the most recently known facts regarding the innervation of the alimentary tract. Physiologists are not yet thoroughly agreed as to the true nature of the intestinal movements. The fact that they will take place in an isolated loop of intestine, that they are augmented by conditions produc- ing an increase in waste products, notably carbon dioxide, as in asphyxia, suggest that they may be independent of the central nervous system, yet usually more or less un- der its control. The functions of the ganglia in the intestinal walls are no more known than are those in the heart. Never- theless, the writer is inclined to believe that it will intimately be considered that nearly all functions are in a sense reflex, i.e., dependent on stimuli reaching a centre and determining the nature of the outgoing im- pulses. But in this there are all degrees. The cardiac and intestinal movements are so readily induced in any case that their essentially reflex character may not be so obvious ; and it is not surprising that some have been Fig. 151.-The whole ie purely diagrammatic, which renders the com- prehension of the general plan simpler. L. V., left vagus, passing to the anterior aspect of the stomach ; R. K, right vagus, communi- cating with left vagus in oesophageal plexus, <e. pl., and supplying the posterior part of stomach, then continued (R' V) to solar plexus, represented by a single ganglion, and connected with the inferior me- senteric ganglion (plexus), m. gl.; branches from solar plexus to stom- ach and small intestine, and from mesenteric ganglion to large intestine, represented by &; Spl. maj., large splanchnic nerve from thoracic ganglia, and r. c., rami communicantes from sixth to tenth dorsal ; Spl. min., small splanchnic nerve arising in like manner from tenth and eleventh dorsal nerves (these beth join the solar plexus and thence make their way to the digestive tract) ; n, nerves from the ganglia, etc., belonging to tenth, twelfth, and thirteenth dorsal and first and second lumbar nerves, reaching the inferior mesenteric ganglia (plexus) and thence proceeding by the hypogastric nerves, n. hyp., and hypogastric plexus, pl. hyp., to the circular muscles of the rectum ; n', nerves from the second and third dorsal nerves (S2, SS, nervi erigentes). reaching the longitudinal muscles of the rectum by the hypogastric plexus. (Modified from Foster.) inclined to hold to an independence of rhythm that is not natural but peculiar to the laboratory. At the same time they are not reflex in the same sense or degree as the movements of striped muscle may be. Experiments seem to show that in the vagus are found augmenter (motor) fibres for the intestine, and in the splanchnic both major and minor inhibitory fibres, since stimula- tion of tiie former causes movements of the gut, and of the latter, arrest of the same. It is certain that the splanchnic nerves are the paths of vaso-constrictor (augmenter) impulses to the blood- vessels of the gut, and probable that dilator (inhibitory) fibres are found in the vagus, which would correspond somewhat to the cardiac innervation. As regards the rectum, we are in possession of more definite knowledge. So far as the dog is concerned, and it is not likely that there is any essential difference for man, the longitudinal fibres of the rectum are under the control of fibres which are found in the anterior roots of the second and third sacral nerves (Fig. 151, 82, Sa) and pass along the nervi erigentes to the hypogastric plexus (pl. hyp.), and so reach the lower gut. Stimulation of 215 Digestion. Digestion. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. these nerves leads to contraction that pulls down the rec- tum, owing to the action of the longitudinal muscular fibres. The supply to the circular fibres is derived from nerves which leave the spinal cord by the lower dorsal and upper lumbar (Fig. 151) nerves, and pass to the rectum by the inferior mesenteric ganglia, the hypogas- tric nerves, and hypogastric plexus (m. gl., n. hyp., pl. hyp.). The fibres lose their medullary sheath before reaching the gut. Stimulation of this set leads to con- traction of the circular fibres only, and results in the contents of the gut being squeezed out. As is well known, disease of the central nervous sys- tem is apt to be followed by obstinate constipation, so that it seems clear that the sigmoid flexure of the colon and the rectum, at all events, are governed by a reflex mechanism. It is likely that a similar mechanism will eventually be shown to exist for the small intestine, and possibly the stomach. The Removal of Altered Products from the Alimentary Canal, or Absorption.-The final prod- ucts of digestion, as this term is commonly understood, are peptones, sugar, and emulsified fats, principally. Till recently it has been customary to teach that peptone was absorbed by the capillaries, and passed as such into the blood-stream ; that sugar disappeared in the same man- ner ; and that the work of the villi-at all events of their columnar cells and structures other than the blood-ves- sels-was largely confined to the removal of fat. There was always a great difficulty in showing the presence of peptone in the blood-stream at all, even when digestion was in full progress ; while more recent re- searches have made it clear that the injection of peptone, the product of artificial digestion, results in undoubted poisoning. According to some investigators, peptone and albu- moses are absent from blood and lymph during even the most active digestion. This brings us to consider the real nature of so-called absorption. It has all along, till very recently, been as- sumed that " animal membranes," in which the intestine was included, acted very much as a piece of parchment, and that osmosis was the great force that determined ab- sorption. Certain experiments showing changes in peptone when placed in contact with the walls of an isolated loop of in- testine, or even pieces of the mucous membrane, tended to shake the older views. Recently, however, the whole subject of absorption has undergone a revision. Not to mention the fact that certain salts and other bodies disappear from the intestine at a rate altogether different from what would be expected from their os- motic equivalent, peptone itself is found to leave the liv- ing gut much faster than through any diffusive septum. For an account of experiments bearing on this subject which is easily accessible, the reader is referred to the out- line of Dr. Weymouth Reed's researches, published in the British Medical Journal for February 13 and May 28, 1892. (See also Journal of Physiology, vol. xi., p. 312.) Dr. Reed in the first series of experiments used frog's skin, and showed that the rate of transfer of fluid through the living skin was not in accordance with the laws of osmosis. Later, he showed that the mucous membrane of the intestine of a rabbit killed during full digestion, when exsected, does act differently from a diffusive septum ; i.e., even the removal of a saline fluid does not follow ordinary physical laws, or, in other words, it is a vital process. The absorption of the fat and the functions of the villi are questions still under discussion. The "striated border" of the columnar cells has always been regarded as playing some important role in absorption, though exactly what, was not and is not yet known. Hei- denhain, in some elaborate researches on the whole subject of the structure and functions of the intestinal mucous membrane (Pfluger's Archit), Bd. xliii., Suppl. Heft) concludes that this striated border is made up (SUPPLEMENT.) of rods set vertically to the plane of the mucous mem- brane, and a homogeneous substance between them, and that either the one or the other may be withdrawn within the cell. Nevertheless the meaning of the striated bor- der functionally has not been made clearer. There is still difference of opinion as to the part leucocytes play in the absorption of fats. The writer believes that he was the first to teach dis-, sent from the ordinary views on the subject of digestion and absorption, and to give expression to this in print. (See "Animal Physiology,'' chapter on the " Removal of Digested Products from the Alimentary Canal," etc.; " The Blood and Blood-vessels in Health and Disease," New York Medical Journal, September 13, 1890.) Briefly, the views the author has held for some six years are these : The laws of physics and chemistry as ordinarily understood will not explain vital phenomena. In seeking for explanations of physiological processes we must bear in mind the course of evolution in animalsand the embryological development of the organism. Accord- ingly, it is not possible to conceive of osmosis, etc., as an explanation of any vital phenomenon. The only solution that is in accordance with facts, is that the capillaries are not merely channels for blood, but are real constructive, ingestive, and secreting mechanisms (glands), and are such in the alimentary tract as well as elsewhere. In explain- ing digestion in mammals we must not forget the nature of the process in lower forms, even in amoeba itself. In tra-cellular digestion, well illustrated in the invertebrates (amoeba, hydra, etc.), probably exists in some degree in all animals. Taking this view, the digestion of fats and the absorption of fats become more readily compre- hensible. If the capillaries are glands, if their cells be considered as not devoid of living properties, we can understand that they may convert peptones into some- thing else, and so of all the cells that make up the ali- mentary tract. It is likely that we have hitherto not only been artificial in our views of the nature of diges- tion and absorption, but have in our conceptions restricted the work far too much both as regards the cells actually involved and the nature of the processes they perform. They do secrete fluids that are digestive, but they or other cells may also cause changes of products within themselves as in the invertebrate series of animals. It is infinitely better to be satisfied with views that are some- what vague and general than with others more definite, but narrow and out of harmony with the great funda- mental conceptions of modern biology. Time and pa- tient research will remedy the former, because we are in this case on the right track, but having started wrong, we may continue so, as indeed we have for long enough, and with great detriment to practical medicine as well as to physiological science. Since these views were taught by the writer a great change has come over physiology in this very quarter, though it has not extended equally to other depart- ments. The leading English writers on physiology are embodying such views in the latest editions of their works. As the writer years ago suggested, it would probably be well if we were to discard the term " absorption," at all events as applied to the digestive tract. " Digestion waits on appetite," i.e., the work of the alimentary canal is largely dependent on the condition of the tissues generally, a truth that it was quite impossi- ble to harmonize in any broad way with the older views of digestion and absorption, but plain enough in the light of what physiologists are now beginning to perceive. After all, in so complicated a process as digestion, " ex- periments '' can only go a certain distance. They are a guide, and tend to confirm rather than to " demonstrate," a term that has been somewhat misleading in physiology. Summary.-Digestion in mammals is made up of a series of processes, part of which result in fluids being poured out which produce chemical changes in food- stuffs which are more complicated than was once supposed, as has been proved in the case of pro- teids ; followed by other changes, which are intra-cellular and largely unknown in their exact nature, but generally 216 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Digestion. Digestion. comprehensible in the light of evolution and embryology, and by bearing in mind that the processes and tissues of the body are related, and in higher animals are under the dominion of the nervous system. Digestion and ab- sorption cannot be separated by any sharp line of demar- cation. That starches are converted into sugar, proteids into peptone, fat emulsified and saponified, are truths so far as they go, but probably take us but a little way into the real nature of digestion. An abundant blood-supply is a usual accompaniment of the act of secretion, but is not absolutely essential to it. The whole process of digestion is under the control of the nervous system in the higher animals, including man, in the action of which we must largely recognize reflex processes. The whole process of the final elaboration of food (ab- sorption) is better understood by remembering the nature of intra-cellular digestion in unicellular and the simpler multicellular animals, and the true nature of capillaries and the cells of which they are composed, and by avoiding conceptions that tend to narrow the work of nature down to the limits of the laboratory. T. Wesley Mills. DIGESTION, DISORDERS OF. Within the past few years some advance has been made in the study of dis- orders of digestion due to faulty action of the stomach, through the use of the stomach-tube. The methods to be referred to are not to be advised in all, and probably not in the majority of, cases of dyspepsia, because, 1, they are often unnecessary ; 2, they are disagreeable to the patient ; 3, they are (very rarely) dangerous from the possibility of (a) injury to the stomach in case of an unsuspected ulceration ; (6) inhalation pneumonia from a sudden retching with the oesophageal tube in situ, causing food to be drawn into the trachea ; and (c) death from the actual nervous shock of this seemingly trivial operation. Moreover, these methods of examination involve much time and labor for the physician, so that they have not come into general employment, and are at present probably practised chiefly in hospitals where plenty of trained assistants are available. But all these reasons are insufficient to warrant the omission of such examina- tions in obscure cases which have resisted other clini- cal study. It is only as conjoined wfith the clinical evidence that these chemico-physiological researches are to be taken as evidence, for, as has often been said, " the stomach is not a test-tube." Unfortunately, as in so many other fields of medicine, the therapeutic results of these newer methods of research have as yet been incommensurate with their scientific interest. The mechanical means for becoming acquainted with the contents of the stomach is a soft, flexible-rubber tube or catheter, twenty-five to thirty inches in length, having bevelled eyelets. It is introduced into the phar- ynx, either simply warmed or lubricated with warm milk, and " fed " to the patient as the latter goes through the motion of deglutition. Care must be taken that it be introduced so that its end reaches below the level of the fluid to be withdrawn, and that it be not pushed in so far as to curl up and bring its extremity again above the surface of the liquid. The tube introduced, the stomach-contents are removed either by expression, aided perhaps by cough, or by aspiration. The fluid, which should be a half-ounce or more in quantity, is filtered, and reserved for further chemical examination. With this object in view the time of obtaining the specimen is important. Some au- thorities, notably Ewald, favor a small " test breakfast," consisting of a two-ounce roll and ten ounces of water or green tea, the tube to be passed one hour after the meal; others, following Leube, believe that a more generous meal is necessary to call out the full digestive capacity, and advise a meal of twelve ounces of soup, two ounces of scraped beef, and about as much bread, the specimen to be withdrawn in four hours. The fluid thus obtained may be subjected to the fol- lowing tests : 1. For Digestive Power.-By putting the stomach fluid in a test-tube at the temperature of 99° F., adding a quan- tity of shredded egg-albumin, and noting the period of completed digestion ; this test may be controlled by others in which the fluid is acidulated with HCl, and by other tests with presumably normal gastric juice, the quantities of albumin used being constant. This is a test of the pepsine strength of the fluid, but it is practically found that the pepsine and other ferments have a pretty con- stant relation to the HC1 strength, so that especial atten- tion is directed to the latter constituent, which is more capable of exact determination. 2. For General Acidity.-To be tested by litmus or Congo red paper. This does not distinguish between the different kinds of acids, whether HC1 or lactic, but if the Congo paper, for instance, is turned a deep blue, it may be interpreted to mean that there is enough HC1 for the purposes of digestion. 3. For Free HCl.-Of many tests which have been suggested, I mention but one, the phloro-glucin-vanillin test. A solution consisting of two gms. phloro-glucin, one gin. vanillin, and thirty gms. absolute alcohol is pre- pared. A few drops of this are warmed in a white por- celain dish, with a cubic centimetre of the gastric fluid, when, if free HCl is present, a red color appears with the deposit of deep red crystals. This test is exceedingly deli- cate, and does not apply to any of the organic acids. 4. Quantitative Test for HCl.-The per cent, of this acid normally existing in the gastric juice has been vari- ously stated, but may be assumed as about 0.2 per cent., with moderate limits of variation in either direction. Special importance attaches to its marked diminution or absence. At the period of full digestion HCl should be the only free acid in the stomach. A roughly quantitative estimate of HCl may be made by diluting the gastric juice to a definitely measured amount, till it produces merely a yellowish sediment instead of one of a bright rose color. The weakest solution capable of producing a distinct tinge is 1 in 20,000. If, then, a given specimen has been diluted ten times to give this color, it originally contained .0005 o'f HCl. For the accurate estimation of free HCl in the absence of other acids, a standard solution called the deci-normal solution of sodium hydrate is employed. Each cubic centimetre of this will neutralize .00364 gm. of absolute HCl. Into 10 c.c. of gastric fluid are dropped from a bottle enough of the alkaline solution to exactly neu- tralize it (the neutralization being determined either («) by litmus paper, or better (b) by an alcoholic solution of phenolphthallein, which latter substance has the prop- erty of developing in alkaline solution a brilliant carmine color, which is absent in acid or neutral solutions). The point of exact neutralization being noted, the quantity of alkaline solution is observed; e.g., if 7 c.c. were re- quired, there was in the 10 c.c. of stomach fluid .0255 gm. of HCl, or in 1 c.c., .00255, or about a quarter of one per cent.-rather a large quantity. Unfortunately this process is applicable only in the absence of the organic acids. If they are present their removal re- quires distillation of the stomach contents and the re- moval of the organic acids by ether. . 5. For Lactic Acid.-The presence, however, of lactic acid may be demonstrated by mixing with a weak aque- ous solution of chloride of iron a two per cent, carbolic acid solution. If gastric juice containing nitric acid be added to this a yellow color is produced. This test responds to a strength of lactic acid equal to and is so delicate that the coincident presence of HCl does not usually interfere with it. What is the significance of these conditions of acidity in the gastric juice ? Here we have to acknowledge considerable uncertainty. Absence of free HCl does not prove that none has been secreted ; for it is possible for it to have entered into combination with certain bases, and thus to have only seemed to be wanting. A few years ago it was claimed as a diagnostic point of great im- portance that cancer of the stomach was the cause, and 217 Digestion. Dinan. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. the only cause, of absence of HC1 in the contents. But later observations go to show that this absence indi- cates a large extent rather than any special nature of structural lesion. While it is generally reduced in quan- tity, if not wanting, in cases of cancer, it may also disap- pear for months in gastric catarrh, and even in so-called nervous dyspepsia. Riegel has claimed that in gastric ulcer the proportion of HC1 is always abnormally high. Ewald has shown that it is generally in excess and always present. A conservative view would be that in a case clinically in doubt between ulcer and cancer, the presence of free HC1 in large, or even in moderate amount, would be evidence of considerable weight in favor of ulcer. Hyperacidity is a term applied to an increase in the proportion of HC1 at the height of digestion ; hypersecre- tion, to an increase in the amount of gastric juice, either continuous or occasional, and irrespective of the ingestion of food. The former may exist without the latter ; but the latter generally presupposes the former. Hypera- cidity, of course, contraindicates the exhibition of HC1, and calls for alkalies. Hypersecretion is to be suspected when, after thorough washing of the stomach, and some hours' fasting, a considerable quantity of gastric fluid can be expressed. This fluid is said to be generally acid, and capable of digesting albumin in the test-tube. Its presence is accompanied clinically by symptoms of py- rosis, eructations, and pain, and it occurs in some cases of so-called " nervous dyspepsia." It may be a cause of gastric dilatation. Lavage is the appropriate treatment both before and after the production of the ectasia. The duration of digestion can be investigated only through the use of the stomach-tube. Seven hours should be enough to accomplish the complete digestion of any meal, and after that interval the stomach should be empty. The tube will show whether it is so. Undue quickness of digestion, while it can be detected through the same means, is of much less clinical significance. Other evidence of value obtainable through the use of the stomach-tube relates to the size and position of the stomach. If the stomach be washed out, and so far as possible emptied, it can be inflated and its boundaries thus be made evident to percussion by attaching an or- dinary rubber bulb syringe and injecting air till the organ is moderately distended. The advantage of this method over that of the separate introduction of powders which shall effervesce when conjoined is sufficiently obvious ; the former method being less painful and being- under the perfect control of the physician through the tube, which can be unstopped at any time. After the area of tympanites has been marked out, a small quantity of water can be introduced which will of course seek the lower border of the stomach and displace the air, thus substituting flatness for tympanites. Normally, but sub- ject to considerable physiological variation, the cardiac orifice lies opposite the inner border of the seventh left rib ; the pylorus a little below the margin of the liver, within a line connecting the right nipple with the umbilicus, the greater curvature reaching nearly to the umbilicus. But in cases of dilatation the greater curvature may extend to the sigmoid flexure. The significance of gastric dila- tation is obstructed peristalsis. This is due to causes a froute, chief of which is pyloric stenosis (usually malig- nant, less often from cicatrized ulcers), or else to causes a tergo, of which the commonest is lack of muscular tone. The kinesis, or motor power of the stomach, is closely related in an inverse ratio to its dilatation. A test which has been used for measuring this power is the following : Salol is administered by the mouth. So long as it remains in acid gastric juice it is unaffected, but as soon as it passes out into the alkaline juices of the duodenum it forms sal- icylic acid, which is promptly eliminated by the kidneys. The test, applied to specimens of urine passed every fif- teen minutes, is a drop of the tincture of chloride of iron added to the urine, which, when salicylic acid is present, strikes a deep red-brown color. Normally it is said that this occurs in thirty to forty-five minutes after the ingestion of the salol. But it is probable that this test, to (SUPPLEMENT.) show the actual motor power of the stomach, should be made to include the time necessary to secure the expul- sion from the stomach of all the salol swallowed, and as the time needed for recovering this total amount of sali- cylic acid includes the time for emptying the stomach plus that of renal elimination, the test is left open to some doubt. The absorptive power of the stomach may be very well shown by the iodine test. Five grains of iodide of potas- sium are administered in a gelatine capsule, which must be thoroughly wiped after it has been tilled, so that none of the drug shall escape into the mouth. Beginning just before the capsule is swallowed, and at intervals of three or five minutes, the patient spits upon a piece of filter paper, which has been dipped into a solution of starch. These pieces of paper, numbered to distin- guish them, are tested with a drop of fuming nitric acid. This sets free the iodine (if any exist) in the saliva, and a blue color is formed with the starch. When the absorptive power of the stomach is good, iodine should appear in the saliva in fifteen minutes. Charles F. Wellington. DIGITALIS. Digitalis continues to maintain its posi- tion at the head of lieart tonics. In England and Amer- ica authorities are as one on this point. On the continent they are the same. Dujardin-Beaumetz assigns it the first rank and calls it " the type of heart tonics ; " Pro- fessor Nothnagel places it above all other heart tonics, and Herr Ftirbringer says, " the sovereign diuretic in cardiac disease has been, and still is, digitalis." Con- tinued use has confirmed the confidence placed in it, and the innumerable rivals that appear serve only to bring its superior qualities into bolder relief. Not much has been added to the uses of this remedy, but we know more def- initely its proper sphere, and apply it with more preci- sion to the conditions in which it will prove of value. In organic disease of the heart the guide for its use is the state of the compensatory action of that organ. It is not given as a remedy for the defective valves, nor with the expectation of benefiting any diseased condition of the organ ; it is simply a stimulant and tonic to the mus- cular tissue. So long as the heart is able to overcome the impediment to the circulation and maintain a free flow of blood, nothing is to be gained by the use of the drug, but, with the earliest symptoms of failing power its administration must be commenced. The system re sponds quickly to the first indication of this loss of compensation, the heart beats more feebly and quicker, the pulse becomes irregular, a slight degree of dyspnoea is noticed, and oedema of the feet and ankles begins. In such conditions the beneficial action of digitalis is most marked. The heart beats more slowly and forcibly and propels the blood onward, the arteries become filled, the engorged veins relieved, and the equilibrium of the cir- culation is re-established. This slower action of the heart allows of a prolonged period of diastole, during which it is at rest and recuperating ; the succeeding contraction is rapid and strong, due to the renewed strength and stim- ulating action of the remedy. No form of organic disease contraindicates the use of digitalis when the compensatory action is failing. Its typical action is produced in mitral disease, in which it acts rapidly and for a prolonged period. In mitral ste- nosis it has been thought to produce a peculiarly impor- tant effect, as the prolonged dilatation of the ventricle permits a greater flow of blood from the auricle through the narrowed channel. In aortic disease it may also be given with confidence. The old idea that the prolonged diastole would allow the ventricle to become overfilled appears to be but little regarded now, as its beneficial effect outweighs any such danger. The following con- clusions1 indicate its purpose not only in aortic, but in all forms of valvular disease : (1) In all cases of valvular disease the chief desideratum in regard to the heart itself is the condition of the cardiac walls in respect to dila- tation and hypertrophy ; (2) that the presence, in cardiac disease of symptoms indicating a disturbance of the circulation always means failure of compensation ; (3) 218 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Digestion. Diiian. that the condition of over-hypertrophy or over-com- pensation does not exist ; (4) that the dangers in aortic disease arise from the same cause as the dangers in mi- tral disease, that is, a failure of the ventricular muscle to perform the ever-increasing work put upon it; (5) that if digitalis is safe and beneficial in mitral disease it is equally so in aortic disease. The one condition in which digitalis is contraindicated is fatty degeneration of the heart. In advanced stages of this disease, where the walls are thin and the cavities are much dilated, it must be used with extreme caution, as its action may be too violent for the feeble organ, and paralysis or rupture follow. In the lesser degrees of de- generation, where the evidences of such a condition are indistinct, a want of action on the part of the remedy is a sign that must not be disregarded. Dujardin-Beaumetz furnishes the following rule : " When in a patient, digi- talis, administered methodically, managed with care, produces no amelioration on the part of the heart and pulse ; when, above all, the quantity of urine is not aug- mented, be persuaded that there is a fatty degeneration of the heart and immediately cease the employment of the remedy." A cumulative action, in the sense of an accumulation of the drug in the system followed by an outburst of increased action, is no longer feared. No such condition occurs. Toxic symptoms arise only from an overdose or from its prolonged administration, and the condition of poisoning is preceded by its regular train of symp- toms. The first effect of digitalis 2 is to stimulate the vagus and the vaso-motor centres, which improves the action of the heart and increases the blood-pressure ; this is followed by a relaxation of the vaso-motor apparatus, which is first evident in the renal vessels. Up to this point the drug produces its therapeutic action, the re- laxed vessels in the kidneys, with a high arterial tension and powerful heart, furnishing all the conditions requisite for a free secretion of fluid. When the drug is pushed beyond this it produces the toxic symptoms : the renal vessels are relaxed, the reduced blood-pressure extends to the general circulation, the heart becomes weaker, and the circulation fails. When a fatal termination ensues it follows a continuance of this condition and ends with a failure of the heart, which is arrested in diastole. To avoid any ill effects it is safer to discontinue the drug for a few days, as soon as its action has been established ; it may be administered again when required. Where the proper conditions for its use are observed there should be no danger of any toxic action ; it is only when it is employed indiscriminately that any such effect arises. A case is reported3 where no bad result followed its use for nearly three years, thirty-five drops being given three times a day. The infusion appears to remain the popular prepara- tion, particularly when its diuretic action is required. Among the French, a maceration in cold water is the favorite method of employing the drug, and is considered superior to the infusion. Five grains of powdered digi- talis are macerated in four ounces of cold water for from eight to twelve hours, and then filtered. The dose is one tablespoonful every two hours. The tincture is preferred by some as a diuretic ; it is probably the most useful preparation when a simple tonic action is required. Os- ler 4 considers that either preparation is efficient if the drug is of good quality and given in full doses-fifteen minims of the tincture or half an ounce of the infusion every three hours for two days, and then in reduced quantities. The subcutaneous employment of the infu- sion has been recommended. In this way it has been found that very small doses will act when larger doses have failed when given in the ordinary manner. The advantage over the administration by the stomach is that usually the gastro-intestinal mucous membrane is in a catarrhal and (edematous state and absorption is pre- vented. It is also thought that the action is retarded and altered by the passage through the liver. An infu- sion of three parts of the leaf in one hundred of water is prepared, and fifteen minims of this infusion have been injected twice or three times a day, it is said, with good results. (SUPPLEMENT.) The relative value of the aqueous and alcoholic prepa- tions assumes more importance when the solubility of the several constituents is considered. Of the four glu- cosides, digitoxin, digitalin, digitalein, and digitonin, the first three are freely soluble in alcohol ; digitoxin is practically insoluble in water, digitalin only sparingly, and digitalein freely soluble in water. Digitonin is freely soluble in water, but hardly at all soluble.in alco- hol. Thus all alcoholic preparations contain the first three principles, and all aqueous solutions the last two. Therapeutically5 the first three are very similar in ac- tion, producing the characteristic effects of digitalis ; digitoxin being the most active. The fourth principle, digitonin, when isolated, has been found to be a direct poison to the muscular structure of the heart ; it de- creases its contractile power and produces a dilatation of the arteries. This toxic action is in a measure counter- acted by the other principles when administered together. The whole question of the digitalins, however, remains very unsatisfactory ; no true alkaloid has yet been sepa- rated ; many varieties of digitalin are in the market, and the significance of the term varies according as it is given to a German or a French preparation. Digitoxin-the digitalin of Nativelle-crystallized digi- talin, the most active of all the principles, is the one generally employed to replace the preparation of the leaves, but it is uncertain and at times violent in its ac- tion and must be used with care. The dose is from T-fio to grain, repeated two or three times a day. Hu- chard8 uses a single large dose of grain daily, giving fifty drops of a 1 to 1,000 solution. Under this treatment he finds diuresis augmented, sometimes after a single dose, generally after a second or third. Foquet ' recom- mends gV grain, to be followed by a daily dose of -row grain. This has also been used hypodermically, but it proves painful and irritating. Digitalis has been8 recommended as a means of abort- ing pneumonia if given early and in large doses. The treatment has been followed by Professor Petresco, of Bucharest, in a large number Of cases. He uses an in- fusion of one to three drachms of the leaves in eight ounces of water, and gives a tablespoonful every hour. As much as 120 grains of the leaves have been given in twenty-four hours. He states that these large doses abort the pulmonary process, shorten the attack, and hasten convalescence. The temperature in some instances drops from 105° to 96° F., and the pulse from 120 to 35 per min- ute. He thinks that this treatment would act almost as a specific if it could be commenced with the attack. In no instance were there any bad results, and the more severe the attack the better the action of the large doses. The good effects are due to the increased force of the circulation in the pulmonary tissue and the prevention of stasis and congestion. This can only follow the administration of large doses as early and as energeti- cally administered as possible. Professor R. Lepine 9 has employed digitalin in pneu- monia also with success ; grain was given in the morn- ing and often or grain in the evening. He does not think that it has any specific action, but finds it of great value in supporting the action of a weak and feeble heart during the course of the disease. Beaumont Small. 1 British Medical Journal, March 12, 1892. 3 I. Mitchell Bruce : Materia Medica and Therapeutics. 3 New York Medical Journal, October 29, 1892. 4 Osler : Practice of Medicine. 6 Merck's Bulletin, December, 1S92. 6 La Semaine Medicale, July, 1890. 7 The Therapeutic Gazette, April, 1892. 8 New York Medical Journal, July 16, 1892. 9 La Semaine Medicale, March, 1892. DINAN. A watering-place and health-resort in the De- partment of C6tes-du-Nord, France. Location.-Dinan is a picturesque old town, situated among some of the finest scenery in Brittany. It stands on a steep spur of land, overlooking the left bank of the river Rance. It is only about ten miles from Dinan to St. 219 Dinan. Diphtheria. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Malo, and just as far to popular Dinard. The population of the place now exceeds 10,000. Analysis.-There is a cold chalybeate spring at Di- nan, having the ordinary composition of a mild ferru- ginous water. Indications.-Dinan is chiefly resorted to on account of its healthfulness and its proximity to the sea-coast. The waters are taken mainly by women and children with scrofula or chloro-anaemia. Accommodation.-There are several moderately good hotels. The principal ones are the Hotel de la Paste, Hotel de Bretagne, Hotel de Commerce. Edmund C. Wendt. DINARD. A sea-side and climatic resort of growing fame and pretentions, in the Department of lie and Vilaine, France. Dinard is beautifully situated on the broad estuary of the river Rance, directly opposite to St. Malo. Little steamboats ply half-hourly between these resorts. It is favorably known on account of its agreeable climate, the fine beach, and the opportunity offered for many pretty excursions. The old town of Dinard is nothing more than a fishing village, running along the sandy shore. The English are partly responsible for the existence of the new Di- nard which overlooks the old village. The accommodations are fairly good. The principal hotels are the Hotel de France, Franklin, Hotel de Paris, and the Grand Hotel de Dinard. There is a small Casino and an Etablissement des Bains. Although a typical French resort, English and Americans visit Dinard in increasing numbers. In recent years it has become more and more a resort for families, and both at Dinard itself and at the adjoining village of St. Enogat numerous fur- nished villas may be rented for the summer season, or for a shorter period. At the latter place the prices are somewhat more moderate than at Dinard. But in both these places, as in the great majority of French sea-side resorts, it is not quite safe to use the general water-sup- ply for drinking purposes. The water should be boiled and then allowed to cool, or the bottled mineral waters should be used instead. During the past two or three summers a thoroughly competent English practitioner has been established at Dinard. Edmund C. Wendt. DIPHTHERIA. Introductory'.-The first reference to this affection in New England, or, in fact, in America, is probably to be found in Sibley's "Harvard Gradu- ates," vol. i., p. 94, where a number of children are said to have died from " bladders in the wind-pipe " in 1659. At various periods after this references to the disease are to be found, with some imperfect descriptions, as occur- ring in various parts of New England. The modern history of diphtheria begins with the pub- lication of Bretonneau's works, his first paper appearing in 1821. He asserted the identity of angina maligna (diphtheria) with membranous laryngitis (croup). He spoke of the continuity of the false membrane of the nose, pharynx, and respiratory tract, of its identity with some morbid processes of the skin, and asserted that diphtheria was a specific disease and not to be con- founded with catarrhal or scarlatinal inflammation. He claimed also that it was a purely local disease, an opinion which he afterward modified. His completed mono- graph appeared in 1826. From this time the literature of the disease becomes more and more voluminous year by year. Hardly a Yvriter upon medicine or an investigator of the etiology of disease but has had more or less matter for publica- tion. The points in dispute are, many of them, discussed to-day as vigorously as ever. The question of the iden- tity of the two processes, croup and diphtheria, from a pathological stand-point, may be considered to be settled in the affirmative so far as to justify the assertion that true croup, or membranous laryngitis, may be one form of diphtheria. The etiology of the disease, as to whether it is produced by bacteria, is no longer in doubt. This question has (SUPPLEMENT.) engaged the attention of many workers, and the solution seems to be reached at present. Since Bretonneau the principal contributions to the history of the disease have been made by Trousseau, Bourdeoise, Baumgarten, Rilliet and Barthez, and Vir- chow. In 1847, the latter first made the distinction be- tween the catarrhal, croupous, and necrobiotic varieties of laryngeal affections. Symptomatology. Symptoms in General.-The symptoms may vary from those of the slightest sore throat to those of Ilie most serious and malignant disease. For convenience these may be separated into several forms, according to the severity of the symptoms. 1. The typical form. 2. The catarrhal, or mild form. 3. The malignant form. 4. (Which is rare) the chronic form. 1. The Typical Form.-A typical case of diphtheria pre- sents about the following phenomena : After a general feeling of malaise, or loss of tone, lasting from two to five days, the attack commences with a definite constitu- tional disturbance. The first stage presents a rapid rise of temperature, often reaching 103° or even 105° F., a feeling of chilliness, anorexia, nausea, and occasionally vomiting and diarrhoea. The throat early becomes dry and hot, with pain upon swallowing, and the neck is swollen, stiff, and tender. The tonsils, pillars of the fau- ces, uvula, and back of the pharynx, are red, swollen, turgid. The appearance of the false membrane does not occur until the arrival of the second stage. In this a viscid, yellowish secretion will be seen, gradually form- ing in the depressions of one or both tonsils. Later, cer- tain points of the superficial mucous membrane become infiltrated with a yellowish material, these points being somewhat elevated above the general surface. These points, at first more or less translucent, become opaque and grayish-white. They extend and coalesce and thus a considerable surface of the fauces and pharynx may become covered with a pseudo-membrane, which is con- stantly being reinforced by additions to its under sur- face. Portions of the membrane may be drawn off, and occasionally a perfect cast of the place from which it is removed may be obtained. The neck is swollen from the enlargement of the parotid and submaxillary glands, which are frequently hard and very tender. Fever is generally lessened with the appearance of the exudation ; exceptionally, however, it may remain as high as, or even rise higher than, it was at first. Swallowing is per- formed with difficulty, and the breath is fetid from 1 lie decomposition of the morbid secretion. The pulse is weak and compressible, and is either very rapid or very slow. The first sound of the heart is weakened, albu- minuria is a frequent symptom in the earlier stages of an attack, and the urine is apt to become scanty and high- colored. Hyaline casts are not uncommon, but the oc- currence of granular or epithelial casts is not constant. The morbid process may spread downward and invade the larynx and trachea, this usually occurring in from three to four days after the invasion, and making itself manifest by unmistakable signs. These are: hoarse, muffled voice, stridulous breathing, constant dry cough at first, later dyspnoea, increasing cyanosis, swelling of the face, and drowsiness passing into coma. The nasal cavities may be involved primarily, or by the extension of the disease from the fauces. This is indicated by the discharge from the nose of a fetid, dark-colored watery fluid, with the formation of false membrane in the nasal cavity. There is often, also, repeated, and sometimes fatal, nasal hemorrhage, and occasionally there occurs a blocking of the lachrymal ducts, or the disease may ex- tend by this channel to the eye. Trousseau goes so far as to say that he has never seen a case of diphtheria recover in which hemorrhage from the nose occurred. The morbid process may also pass through the Eustachian tube to the tympanic cavity, and eventually cause a perforation of the membrana tympani, with subsequent purulent discharge from the ear. If the 220 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Diiian. Diphtheria. larynx be not attacked, the third stage is reached and the disease slowly disappears or death occurs very rapidly. If the result is to be favorable, a marked improvement takes place in all the symptoms by the end of the first or the beginning of the second week. The temperature be- comes normal, the pulse regains its strength and regu- larity, and anorexia disappears, the congestion of the fauces diminishes, the exudation ceases tp extend, and portions of it become detached. The patient feels very well, but the danger is not passed, for a relapse may occur which may -be more severe than the initial attack. Another danger to be feared at this time is syncope from failure of the action of the heart. If the termina- tion of the attack is unfavorable, death may occur from a secondary blood-poisoning with typhoid symptoms or coma, or, more frequently, from cardiac embolism or syncop*. 2. The Mikl Form.-In a case of this character the symptoms are often so slight that the diagnosis must lie excessively doubtful, the symptoms being those of an ordinary catarrhal sore throat. The constitutional disturbance is very slight ; the elevation in temperature being but one or two degrees, and the pulse being but little affected. There may be slight pains or dryness in the throat, and so*ne difficulty in swallowing. The submaxillary glands may be swollen and tender ; the tonsils, soft pal- ate, and pharynx red and swollen ; and in a day or two minute yellowish spots, the size of a pin-head, may make their appearance. These are easily removable. The symptoms improve on the third or fourth day, and often the presence of persistent and general weakness is the only definite sign that the case has been one of diph- theria. This form is often, however, introductory to an acute attack, which breaks out in a few days in full force, and the definite diagnosis can only be made by means of the bacteriological examination. 3. The Malignant Form.-In a case of this kind there are at once rigors, headache, vomiting, and, not infrequently, epistaxis. The throat symptoms are not always very severe, but decomposition of the secretion and the result- ing fetor are very marked. The temperature is not nec- essarily high ; the pulse is small, rapid, and wavy. The patient becomes drowsy ; the skin is cold and clammy ; the face pale, the tongue dry, brown and tremulous ; the mucous surfaces bleed easily, and petechiae under the skin are often present. All the symptoms of a typical case develop rapidly one after the other, and the patient dies comatose or in syncope. 4. Chronic Diphtheria is rare. Mackenzie ("Diph- theria," p. 31) quotes a case in which the membrane per- sisted in reforming for a period of three months. Other cases have also been reported in which this repeated for- mation of membrane was a characteristic feature. Symptoms in Detail.-Prodromes.-In a majority of cases there is a prodromic stage lasting for a day or two. The patient feels indisposed to exertion ; is slightly fe- verish, and is apt to have some difficulty in deglutition. There may be headache with occasional vomiting. Pharynx and Soft Palate.-The pharynx and soft palate are the principal seats of the local diphtheritic dis- turbance ; larger or smaller deposits being found there, loosely attached or deeply embedded according to the location. Sometimes there is but one spot, but usually there are several, and in a short time (twelve to twenty- four hours) they coalesce to form a membrane. On the uvula, soft palate, and posterior wall of the pharynx the membrane is superficial and may sometimes be easily re- moved. It is more firmly attached upon the tonsils, and sometimes extends into the deeper tissues. There is, oc- casionally, no actual membranous formation, and in such cases the tissues are swollen, the raucous membrane is more or less reddened, and the infiltration into the tissues gives a somewhat grayish-white discoloration. When the uvula is involved the swelling is usually more con- spicuous than when the rest of the fauces alone is af- fected. Jacobi speaks of three distinct processes in the throat: 1, A membrane lying on the mucous membrane, and (SUPPLEMENT.) which can be separated without much, if any, injury to the subjacent epithelium ; 2, a membrane implicating the upper layer of the mucous membrane ; 3, a whitish or grayish infiltration of the surface and deeper tissues which may occasion necrotic changes. When the symp- toms are of long duration, and deep infiltration occurs, hemorrhages from the affected parts are not uncommon. They may be slight, but occasionally large vessels are opened and death may result. Gangrene sometimes oc- curs after extensive infiltration has taken place, and a decided loss of substance is revealed after the falling off of the membrane, which loss of substance more usually takes place upon the tonsils. The Nasal Cavities.-The morbid process often passes into the nasal cavities from the posterior aspect of the soft palate or pharynx, especially when the uvula is af- fected. The disease may also occur primarily in the nose, and this happens more often after an acute catarrh. The secretion is very profuse, slightly flocculent, and frequently very offensive. The first certain indication of nasal diphtheria is the occurrence of tumefaction of the cervical glands. Before this it is often impossible to diagnosticate the disease in this situation. This adenitis is often found very persistent, a permanent induration sometimes remaining. Chronic nasal catarrh, with elon- gated uvula and enlarged tonsils, are frequent results of the disease. The Eye.-The eye is frequently affected by extension of the process from the nose through the nasal duct, al- though it may also be a seat of primary infection. Diph- theritic conjunctivitis is an exceedingly grave affection, as regards the safety of the eye ; the cornea often being de- stroyed by pressure, from diphtheritic keratitis, in twenty- four hours. Von Graefe first studied diphtheria of the eye in 1854. It is not a frequent affection. Sometimes a single eyelid is the seat of the disease. The process may first appear on the conjunctiva bulbi, and pass from this to the conjunctiva palpebrarum. The cornea be- comes hazy very early, and ulceration occurs, as a result of which perforation is to be feared, with possible pro- lapse of the iris and consequent destruction of the eye, or, at least, loss of sight. The Ear.-The ear may become affected by way of the Eustachian tube, and an acute otitis media may develop, with perforation of the membrana tympani, and even necrosis of the mastoid bone. An otitis interna is also sometimes observed. The Epiglottis.-It is not rare to find patches of mem- brane in the depression at either side of the face of the epiglottis, which is then swollen, with hard and reddened edges ; the great part of the diphtheritic process occur- ring upon its upper surface. Dyspnoea and hoarseness are only occasional, and only when there is accompany- ing oedema at the entrance to the larynx. This oedema produces a functional paralysis of the vocal cord, with marked dyspnoea upon inspiration. Larynx.-When membrane forms in the larynx in- spiration and expiration are both interfered with. Fever and pain are not necessarily prominent, but, as the pro- cess goes on, the respiration becomes more difficult, com- plete aphonia comes on, and the hoarse, croupy cough becomes more and more suppressed. If the affection progresses, all the symptoms of suffocation and poisoning by carbonic acid gas may be observed. The supra-cla- vicular and intercostal regions are retracted with each in- spiration, sometimes also the ensiform cartilage. Usually a number of days elapse between the first laryngeal symptoms and death. At times, however, a fatal result occurs in a few hours. Trachea.-Jacobi and a few others claim that the trachea and bronchi may be the original seat of the dis- ease, and that the diphtheritic process may spread up- ward to the larynx and into the fauces. This is denied, however, by Henoch, Oertel, and Steiner. Cases of gen- uine adhesions between the arytenoid cartilages, with a resulting paralysis of the internal thyro-arytenoid mus- cles, have been occasionally reported. The Lungs.-Lobular pneumonia is the occasional result of the inhalation of pieces of false membrane into the 221 Diphtheria. Diphtheria. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. ((SUPPLEMENT.) smallest bronchi. Fibrinous pneumonia is also known to occur. Broncho-pneumonia frequently develops after the trachea becomes affected. In all these forms the diagnosis is extremely difficult if the larynx be affected, because of the noisy respiration which interferes with the recognition of the signs upon auscultation. If the trachea is open, this difficulty is done away with. The Mouth.-Primary infection of the mouth is not common. Diphtheria often occurs in this situation, how- ever, in association with the same affection in the nose and the fauces. The morbid changes occur on the cheek, tongue, angles of the mouth, gums, and lips, appearing here as in other places by preference where there has been a solution of continuity in the mucous membrane. Diphtheria of the mouth is an indication of a probable long duration of the disease, with the danger of septic poisoning following. (Esophagus and Cardiac Orifice of the Stomach.- The occurrence of genuine diphtheria of these parts is asserted by some authorities, while others say that the formation of membrane ceases at the upper portion of the oesophagus. Intestinal diphtheria occurs, but is rare in the human subject, although not uncommon in cows and certain other of the lower animals. Wounds of all kinds are easily and rapidly infected and may quickly become covered with the false membrane. Death oc- curs by general infection from such a source, and may come as well from diphtheritic infection of abrasions of the skin as from that of wounds resulting from amputa- tion or other surgical interference. The Skin.-At the beginning of an attack, sometimes not for two or three days, a more or less general ery- thema may appear upon the skin. Its principal seat is over the shoulders, chest, or back, and it is very similar to, and often indistinguishable from, the eruption of scar- latina. Erysipelas also often occurs, and is a complica- tion much to be dreaded. Genito- Urinary Organs.-The diphtheritic process may occur in these organs secondarily, but not often. Some- times it is primary in this locality. The disease has oc- curred in the vulva, the vagina, and the bladder, and in circumcision wounds. The Kidneys.-These are the most actively involved of any of the internal organs during the progress of diph- theria. Wade, in 1858, first spoke of albuminuria in this disease, and was followed some months later by See (in the Union Medicale for 1858, p. 407). The presence of albumin is not of such great significance as was at first supposed. It occurs in large quantities in mild cases, and in small amounts or not at all in severe attacks. It may appear either before or after tracheotomy. It is often unaccompanied by any other sign of renal disease, but may be accompanied by various kinds of casts and epithelial cells. The Heart and Blood.-There may be weakness of the cardiac muscles, sluggish circulation, dyspnoea, and muffled heart-sounds, cool and pale skin, feeble and fre- quent, sometimes slow, pulse. Occasionally there is actual endocarditis affecting the valves, more especially the mitral. This is characterized by high fever, precor- dial pain, syncope, and a systolic murmur. The Nervous System.-This is often affected, and fre- quently very seriously. The influence exerted was sup- posed for a long time to be localized in certain nerves, or groups of nerves, and that the first points attacked were always the arches of the soft palate. This is not true, however, nor is the assertion that severe paralyses follow severe local manifestations, for the opposite is very often the case, viz., that a very mild attack of diphtheria may ■be followed by a very severe form of paralysis. Many theories of the method of production of this paresis are put forward, such as, that they are produced by fatty or granular degeneration of the muscular fibres, or by ca- pillary hemorrhages, or by amyloid degeneration, or by cedematous infiltration of the part and consequent press- ure. All of these, however, are more speculative than based upon actual facts observed. The most frequent paralysis is that of the soft palate, which appears, as a rule in the second week, although often earlier and sometimes later. Paralysis of the con- strictor muscles of the pharynx also may occur, and these two conditions produce imperfect speech and dif- ficult deglutition, with frequent regurgitation of fluid through the nose. In such cases sometimes life can only be sustained by the use of the oesophageal tube. Paraly- sis of the power of accommodation conies next in fre- quency. Then follow paralyses of the low'er and upper extremities, these rarely occurring suddenly, and usually involving only one set of muscles at the same time. Complete fatty degeneration, although rare, may occur. The muscles of the neck are sometimes affected, produc- ing inability to hold the head erect. The fingers alone may be paralyzed. The bladder and sphincters may be affected, but this is not a common occurrence. Some- times the muscles of respiration are attacked, such cases being very apt to terminate fatally. We have thus far spoken only of motor paralysis, but affections of the sen- sory apparatus may also occur. Anaesthesia of the en- tire upper part of the body has been observed. Some- times the two are combined and locomotor ataxia is the result. Diphtheritic paralyses are irregular in regard to the place of appearance, their severity, their duration, and their responsiveness to treatment. They may last from six weeks to six months, may recover with treat- ment and without it, and may prove refractory to any- thing that can be done to remove them. Pathological Anatomy. The most important part of the diphtheritic process is the false membrane. It is the most prominent character- istic, as well as the one most frequently met with. It is tough, dry, yellowish, or grayish-white, firm and elastic. It swells upon the addition of acetic acid and becomes more or less transparent. It is soluble in caustic alkali, insoluble in water, and yields neither gelatine nor albu- min. It varies in appearance from a thin transparent pellicle to a skin of considerable thickness. On separa- tion, if the attack has been a mild one, the subjacent mucous membrane is found to be smooth and paler than normal; if the attack has been severe, more or less ulcer- ation is left behind. The membrane consists, first, in great part of fibrin, the result of epithelial changes, or a direct product from the exuded blood-serum. It con- tains, also, epithelium, more or less degenerated blood, mucus, and bacteria. Its method of formation is somewhat as follows : The pavement epithelium becomes cloudy, swollen, and den- tated, and dissolves into a net-work. It becomes, later, the recipient of newly formed cells. There is a consid- erable infiltration of the mucous membrane with pus cells and granules. The cellular tissue is studded with granules also, its decomposition resulting in a fine gran- ular deposit and necrosis-a process considered by Vir- chow to be an important element in severe forms of diph- theria. The clinical differences between the membrane of croup and that of diphtheria are not borne out by the microscopical examination, which shows no essential dis- coverable difference. The, Heart.-This organ is often found to be perfectly healthy. It may present numerous petechiae and there is often fatty degeneration of the muscular tissue, and parenchymatous inflammation or hemorrhages may oc- cur. Endocarditis is found affecting the mitral more often than the tricuspid or pulmonary valves. Perfora- tion of the septum of the right auricle and of the aorta has been seen. Lungs.-These organs present various inflammatory or congested appearances ; oedema, broncho-pneumonia, atelectasis, emphysema, ecchymoses, and infarction are all found at various times. The lungs may also be en- tirely unaffected. The spleen is often increased in size and congested, and it may be friable, with more or less extensive infarc- tions. The kidneys may be normal, simply congested, or the seat of parenchymatous or interstitial nephritis. 222 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Diphtheria. Diphtheria. In the muscles are sometimes found ecchymoses, myo- sitis, gray degeneration, or atrophy. The lymphatic glands are also swollen and inflamed. They may be hard or yielding to pressure. Abscesses are not common. The tissue about the glands is often involved in the inflammatory process also. Intestinal Canal.-Unless the actual seat of the disease this tract presents no peculiar appearance. Virchow considers that diphtheria of the intestinal canal is charac- terized by fibrinous deposits on the surface and in the tissues of the intestine, with a subsequent granular de- generation of the tissues, and Radjewsky claims that his experiments prove that bacteria are important factors in the production of the diphtheritic membrane after pre- vious inflammation has taken place in the intestine. The Brain.-If death has occurred from asphyxia, the brain presents a venous engorgement of the membranes and cerebral structure, with minute extravasations of blood. Pus and lymph have also been found on the arytenoid in cases in which mental disturbances have been very marked. In many cases, however, there are no perceptible alterations in the cranial cavity. Etiology. Diphtheria is pre-eminently a disease of early life, the proportionate number of cases diminishing very rapidly as the age increases. Of five hundred deaths in Vienna from this disease in 1868, but one case had reached the age of sixty. Sex seems to exert no spe- cial influence. It occurs mostly in children ; the pre- disposition of this age is explained by the softer con- dition of the mucous membrane of the mouth and pharynx, and by the narrowness of the pharynx, the protuberant condition of the tonsils, the large number and size of the lymphatics, and the greater communica- bility between them and the system at large, all of which aids in the development of the disease. On the other hand, the free acid secretions of the mouth after the third month tend to hinder its occurrence after this period. There seem to be families in which there is an apparent predisposition to this disease. Climatic and Atmospheric Conditions.-The disease is most common in temperate climates, but it occurs almost everywhere. It is probable that moisture favors the de- velopment of the poison, and also that it can lie dormant for a long time, and until some special agency calls it into activity. The disease prevails more extensively during the winter months, apparently at the time when catarrhal conditions are most common, and the mucous membrane is in a receptive condition. Social position offers no safeguard during an epidemic, although sporadic cases seem to especially attack those living under bad hygienic surroundings. Exhalations from sewers and filthy per- sonal habits are also said to produce the disease, but the weight of evidence is against their possessing anything more than a favoring action. Manner of Infection.-Whether diphtheria be a local disease with constitutional sequelae, or whether it be a general disease making its most marked appearance at certain points, is a question which has been much dis- cussed. If, however, as is practically certain, it is ex- cited by the activity of a micro-organism, the question is settled that the local manifestations are usually the signs of the place of entrance, and the constitutional disturb- ances the evidence of the general distribution of the poison. The infectiousness of diphtheria is undoubted. The in- fectious material may be communicated directly by the patient, and it seems to cling to solid bodies, and may be transported in this way to a distance, but how far is, as yet, undetermined. The methods of transportation which have been thought to offer the most usual channel for the spread of the disease are milk of diseased cows and infected animals. Many researches make it certain that the disease occurs among domesticated animals, although the more recent investigations seem to indicate that it is really a disease (SUPPLEMENT.) resembling human diphtheria as regards its clinical symptoms, but differing from it in the fact that it is pro- duced by a micro-organism which differs somewhat from the true diphtheria bacillus. The question being determined in the affirmative may furnish a probable ex- planation of the origin of many cases in human beings in which the source of infection has been obscure. The Nature of the Diphtheritic Poison.-Investigation of this point has occupied the attention of observers for years past. As long ago as in 1840 Henle expressed his belief in a contagium vivum, and Buhl first found micro- organisms in the diphtheritic membrane, but he expressed no opinion as to their special import. The work of Loeffler, first published in 1884, described a specific micro-organism which he had found in the tissues of individuals suffering from diphtheria. This discovery has been confirmed by so many observations and by so many different observers since that time, that the question of the specific infectious agent in diphtheria must be considered as definitely settled at the present time. This question is one of such great importance, and the disease is one in which positive therapeutic re- sults seem to be so clearly promised, that it has been thought best to give a full description of the organisms found in the diphtheria of men and of the lower animals. The Bacteria Occurring in Diphtheria.-For the following summary of the present state of opinion in regard to the bacteria of diphtheria, we are very largely indebted to the admirable resume of the work done, and the views entertained, by various authors, to be found in Sternberg's "Manual of Bacteriology" (published by William Wood & Co., New York, 1892). The condition of the question in regard to a specific organism occurring in diphtheria is such that to-day we have a very precise knowledge of the specific infecting agent, together with evidence that it produces during its growth a very potent toxic substance, the absorption of which from the seat of local infection accounts, in a sat- isfactory manner, for the general symptoms of the dis- ease, which are due to a toxaemia and not to an invasion of the blood and tissues by the pathogenic micro-organ- isms producing it, although the latter statement seems likely to be more or less modified by future investiga- tion, as is indicated by the work of Frosch, quoted in this article. Many examinations have failed to demonstrate the presence of bacteria in the blood of patients suffering from diphtheria, but a variety of micro-organisms have been obtained in cultures from diphtheritic pseudo-mem- branes, and among them are the well-known pus organ- isms, especially the streptococcus pyogenes, that is ap- parently very commonly present and is perhaps the active agent in the production of certain forms of pseudo-diph- theria. But the malignant specific diphtheria has been shown to be due to a bacillus first recognized by Klebs in 1883, and cultivated and described by Loeffler in 1884. In his first article, the latter author did not claim to have fully demonstrated the etiological relationship of this organism, but his own later work and that of many others show constant success in finding the same bacillus in other cases of diphtheria, and the same successful re- sult from inoculation experiments with pure cultures of the organism in certain of the lower animals. There has also been found, by Loeffler and others, an organism that does not possess pathogenic properties, but which resembles very closely the diphtheritic bacillus. And to this organism has been given the name of the pseudo-diphtheritic bacillus. It is still uncertain whether this bacillus is to be considered a distinct species or a non-pathogenic variety of the true diphtheria bacillus, as is maintained by the French authors Roux and Yersin. The evidence upon which the bacillus of diphtheria is now generally conceded to be the specific infectious agent in true diphtheria rests upon the following principal points : 1. It is found in all undoubted cases of diphtheria, and in support of this there are the results of experimentsand researches made by a very large number of experimental- ists who, in nearly every case, have demonstrated with- out difficulty the presence of this bacillus. The one 223 Diphtheria. Diphtheria. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) eminent observer who failed to find the organism, in a series of twenty-four cases studied by him, was Prudden, of New York. But later, in a subsequent series of twelve cases, Prudden obtained Loeffler's bacillus in cultures from eleven, and he says, " We are now, it would seem, justified (as it did not appear to the writer that we were two years ago), owing to the large number of important researches which have been made in the interim, to maintain that the name diphtheria, or, at least, primary diphtheria, should be applied, and explicitly applied, to that acute infectious disease usually associated with a pseudo-membranous inflammation of the mucous mem- brane, which is primarily caused by the bacillus called bacillus diphtherise of Loeffler.'' In this country Welsh and Abbott have also demon- strated the presence of the Loeffler bacillus in a series of cases occurring in Baltimore, and have proved its spe- cific pathogenic power by inoculation in animals. Loeffler attempted to show how long after convales- cence the diphtheria bacillus may be present in the throat of an infected person, and, in a typical case, a bac- teriological examination was made daily, from the com- mencement until fourteen days after its termination. The fever disappeared on the fifth day and the exudation had all disappeared on the sixteenth day. Up to this time the bacillus was daily obtained in cultures, and subsequently nearly every day up to the twenty-fifth, that is, for three weeks after the febrile symptoms had disappeared. Roux and Yersin have also obtained the bacillus in cult- ures from mucus scraped from the throat of convales- cents several days after the disappearance of all evidence of the disease. 2. The Klebs-Loeffler bacillus is found only in diph- theria. In his earlier researches Loeffler obtained the bacillus in a single instance from the mouth of a healthy child, and this fact led him to hesitate in announcing it as his conviction that it was the true cause of diphtheria. But in extended researches made subsequently, he has not again succeeded in finding it except in association with diphtheria, and he admits now that he may have been mistaken as to the identity of the bacillus found. This seems not improbable, in view of the fact that very similar bacilli have been found by various bacteriolo- gists. Von Hoffman obtained a similar, but non-patho- genic bacillus from the mucus of chronic nasal catarrh, and from a healthy mucous membrane; Babes, from cases of trachoma ; Neisser, from ulcers ; Zarinko, from the surface of various mucous membranes ; but all of these were shown to possess certain differences in their biological character by which they could be differenti- ated from the true diphtheria bacillus. Welsh and Abbott in their comparative studies did not find the Loeffler bacillus, "or any bacillus that an experienced bacteriologist would be likely to confound with it." They examined mucus from the throat of healthy children ; from those suffering from simple in- flammation of the tonsils and pharynx ; and from four cases of so-called follicular tonsillitis. As a result of their investigations they agree with Loeffler and with Roux and Yersin as to the great practical value, for di- agnostic purposes, of a bacteriological examination, by cover-glass specimens and by cultures, of cases in which there is any doubt of the true character of the disease. They say further, " the only species of bacteria which we have found constantly in the cases of diphtheria have been the Loeffler bacillus. Two other species have been present in many cases, namely, the well-known streptococcus, which grows in much smaller colonies and less rapidly than the Loeffler bacillus, and a short, oval, often slightly pointed bacillus, growing in long chains running parallel to each other. There are often marked irregularities in shape, and especially in size, of this bacillus, even in individuals of the same chain. The colonies of this bacillus are grayish-white, moist, larger than those of the streptococcus but smaller than those of the Loeffler bacillus." 3. As shown by Loeffler's earlier researches, pure cult- ures of this bacillus induce characteristic diphtheritic in- flammation when inoculated into the mucous membrane of certain of the lower animals. Roux and Yersin have also shown that local paralysis is as likely to occur in in- oculated animals as it is in a case of diphtheria in man. In speaking of their inoculations into the trachea in rabbits these investigators say the affection which is thus induced in the rabbit resembles croup in man. The dif- ficulty which the animal experiences in breathing ; the noise made by the air in passing through the obstructed trachea ; the aspect of the trachea, which is congested and covered with false membrane, and the cedematous swell- ing of the tissues and glands of the neck make the re- semblance absolutely remarkable. Welsh and Abbott give the following account of the results of inoculation into the trachea in kittens. A half- grown kitten is inoculated in the trachea with one plati- num loop from a pure culture of the Loeffler bacillus on glycerine-agar eleven days old. For this inoculation a small median incision was made over the trachea, and in the latter a hole just large enough to admit the platinum loop was made. The culture was rubbed over the mu- cosa of the trachea for an extent of about three centime- tres in length, and in this process sufficient force was used to abrade the mucous membrane. On the day following the inoculation no special alteration in the animal was observed, but on the morning of the second day it was found to be in a very weak condition. In the course of this day it became so very weak as to lie completely mo- tionless, apparently unconscious, with very feeble, shal- low respiration. Several times it was thought to be dead, but on careful examination it was found still to be breathing feebly. It was discovered dead on the morn- ing of the third day. At the autopsy the wound was found gaping and covered with a grayish, adherent, ne- crotic, distinctly diphtheritic layer. For a considerable distance around the wound the subcutaneous tissues were very cedematous, the oedema extending from the lower jaw down over the sternum and to the side of the neck, and along the anterior extremities. The lymphatic glands at the end of the jaw were markedly swollen and red. The mucous membrane of the trachea, beginning at the larynx and extending down for six centimetres, was covered with a tolerably firm, grayish-white, loosely attached pseudo-membrane, in all respects identical with the croupous membrane observed in the same situation in cases of human diphtheria. The account which we have just given, together' with many others that might be quoted, seems to show that the organism spoken of and studied by so many observ- ers, is unquestionably the cause of the specific disease, diphtheria. As has already been inferred, it is also un- questionably true that there may be other processes clini- cally resembling diphtheria which involve the throat and other mucous surfaces, and which owe their origin to other bacteria. ■ Description of the Bacillus of Diphtheria.- It was first observed in 1883 by Klebs in diphtheritic false membrane. It was first isolated in pure culture and its pathogenic power demonstrated by Loeffler in 1884. It was found in diphtheritic pseudo-membranes, and especially in the deeper portions, intermingled with numerous other bacteria, while the superficial layers of the membrane commonly contained a few cells or bacilli, or were invaded by other species, especially by the strep- tococcus pyogenes. The bacilli may not be found in the affected mucous membrane, or in sections from the in- ternal organs in fatal cases of this disease, although re- cent bacteriological examinations by various authors have shown their pretty constant occurrence in these sit- uations (see Frosch, infra). Morphology.-The organism is a rod, straight or slightly curved, with rounded ends, having a diameter of from one-half to eight-tenths of a micromillimetre, and from two to three micromillimetres in length. Ir- regular forms are very common, and, indeed, are charac- teristic of this bacillus. In the same culture, and espe- cially in an unfavorable culture-medium, very great dif- ferences in form and dimensions may be observed, one or both ends appearing swollen or the central portion be- 224 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Diphtheria. Diphtheria. ing notably thicker than the extremities, or the rod may be made up of irregular, spherical, or oval cells. Multi- plication occurs by transverse subdivision only, and the bacilli do not appear in long chains at any time. In un- stained preparations certain portions of the rod, and especially the extremities, are observed to be more highly refractive than the remaining portion, and in stained having a slightly alkaline reaction, in nutrient agar, in glycerine agar, or in alkaline bouillon. But the most favorable medium appears to be that first recommended by Loeffler, which consists of a mixture of three parts of blood-serum with one part of bouillon, the latter contain- ing one per cent, of peptone, one per cent, of grape- sugar, and one-half of one per cent, of sodium chloride. Fig. 152.-Diphtheria Bacillus, from a Diphtheritic Membrane in the Trachea. Cover-glass preparation, stained with alkaline methylene blue. (X 1,000.) (Fraenkel.) Fig. 154.-Diphtheria Bacillus. Culture on solidified blood-serum. Cov- er-glass preparation, stained with alkaline methylene blue. (X 1,000.) (Fraenkel.) preparations these portions are seen to be more deeply colored. The bacillus may be stained by the use of Loeffler's alkaline solution of methylene blue, but is not so readily stained with some of the other aniline colors commonly employed. It is stained also by Gramm's method. For the demonstration of the bacillus in sections of diphtheritic membrane, nothing can surpass in brilliancy and sharp differentiation, sections stained doubly by the modified Weigert fibrin stain and picro-carmine (accord- ing to Welsh and Abbott). Biological Character.-The diphtheria bacillus is aero- This mixture is sterilized and solidified at the tempera- tures usual with blood-serum, and upon it the develop- ment is so rapid in the incubating oven that at the end of twenty-four hours the large, round, elevated colonies of a grayish-white color and moist appearance may be easily recognized, while other associated bacteria have, as a rule, not yet developed colonies large enough to in- terfere with the recognition of those of the diphtheria bacillus. Upon nutrient agar plates the deep-lying col- onies, when magnified about eighty diameters, appear as round or oval, coarsely granular disks, with rather ill- defined margins, or, when several colonies are in juxta- Fig. 153.-Diphtheria Bacillus. Colony on agar plate, twenty-four hours old. Impression preparation, stained with alkaline methylene blue. (X 1,000.) (Fraenkel.) Fig. 155.-Diphtheria Bacillus. Colony on agar plate, twenty-four hours old. Unstained. (X 100.) (Fraenkel.) bic, non-motile, and non-liquefying. It does not form spores. It grows most freely in the presence of oxygen, but is also a facultative anaerobic organism. Develop- ment occurs in various culture-media at a temperature of from 20° to 42° C., the most favorable temperature being about 35° C. It grows very readily in nutrient gelatine, position, as figures of irregular form. The superficial col- onies are grayish-yellow in color, have an irregular, not well-defined outline, and a rough, almost reticulated sur- face. The growth upon glycerine agar is very similar. The first inoculation in a plain nutrient agar tube often gives a comparatively feeble growth, which becomes 225 Diphtheria. Diphtheria. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) more abundant in subsequent inoculations in the same medium. In needle cultures in glycerine, or plain agar, growth occurs to the bottom of the line of inoculation, and also upon the surface, but is not at all characteristic. The same may be said in reference to cultures in nutri- ent gelatine. Plate cultures in this medium containing fifteen per cent, of gelatine at 24° C., give rather small colonies, which are white by reflected light, and under the microscope are seen as yellowish-brown opaque disks, having a more or less irregular outline and a granular structure. In alkaline bouillon the growth is sometimes in the form of small whitish masses along the side and bottom of the tubes, but at other times a diffusely cloud- ed growth occurs in this medium. After standing for some time in the incubating oven, a thin white pellicle may form upon the surface of the bouillon. The re- action of the bouillon becomes at first acid, but later it is alkaline. With reference to the growth on potato, authors have differed, probably because the growth is slightly visible. Welsh and Abbott say : " Our experience has been that the bacillus of diphtheria grows on ordinary sterilized potato without any preliminary treatment, but that the growth is usually entirely invisible, or is indicated by a dry thin glaze after several days. Doubtless the invisible character of the growth has led most observers into the error of supposing that no growth existed, whereas a mi- croscopical examination reveals a tolerably abundant growth, which on the first potato is often feebler than on succeeding ones. Irregular forms are particularly nu- merous in potato cultures, and in general the rods are thicker than on other media. In twenty-four hours, at a temperature of 35° C., microscopical examination showed distinct growth. We have cultivated the bacil- lus for many generations on potato." Milk is a favorable medium for the growth of this bacillus, and as it grows at a comparatively low tempera- ture in it-20° C.-it is evident that this fluid may be- come a medium for conveying the bacillus from an in- fected source to the throat of a previously healthy per- son. Cultures of the diphtheria bacillus may retain their vitality for several months, and when dried upon silk thread for several weeks, colonies may still develop in a suitable medium. Its drying has been found not to de- stroy its vitality for a period as long as from three to four weeks, when the desiccation process took place in a room, or for a period of from five to ten weeks (in one instance fourteen weeks), when the desiccation took place in an exsiccator. In dried diphtheritic membranes, pre- served in small fragments, the bacillus retained its vi- tality for a period of nine weeks, and in larger frag- ments for one of from twelve to fourteen weeks. The thermal death-point, as determined by Welsh and Ab- bott, is 58° C., the time of exposure being ten minutes. Loeffler had previously found that it did not survive exposure for half an hour to a temperature of 60° C. Pathogenesis.-In view of the evidence that has here- tofore been recorded, it may be considered as demon- strated that this bacillus gives rise to the morbid phe- nomena which characterize the fatal disease in man known as diphtheria. The effects of inoculation in rabbits and cats have already been referred to, these giving rise to a charac- teristic diphtheritic inflammation with general toxaemia and death from the absorption of soluble toxic products formed at the seat of local infection. This inference as to the cause of death seems justified by what we know in regard to the life history of the bacillus, and is supported by additional experimental evidence given below. Subcutaneous inoculations in guinea-pigs of a small quantity of a pure culture of the bacillus (from one tenth to one half a cubic centimetre of a bouillon culture) caused death in from one to five days. The usual changes observed are an extensive local oedema, with more or less hypertemia and ecchymosis at the seat of inoculation. Frequently there are swollen' and reddened lymphatic glands ; increased serous fluid in the peritoneum, pleura, and pericardium ; enlarged and hemorrhagic supra-renal capsules; occasionally slightly swollen spleen; some- times fatty degeneration in the liver, kidney, and myo- cardium. "We have always found the Loeffler bacilli at the seat of inoculation, most abundant in a grayish-white fibrino-purulent exudate present at the point of inocula- tion, and becoming fewer at a distance from this, so that the more remote part of the cedematous fluid does not contain any bacilli" (from Welsh and Abbott). The authors quoted also agree with Loeffler and others in stating that the bacillus is only found at the point of in- oculation. In all cases their cultures from the blood and from the various organs gave a negative result, but this is purely negative evidence, and cannot stand as against the positive results of Martin, Behring, and Frosch. Rabbits are not so susceptible, and may recover after the subcutaneous inoculation of very small doses, but they usually die in from four to twenty days when from two to four cubic centimetres of a bouillon culture have been introduced beneath the skin. In these animals also there is an extensive oedema, enlargement of the neigh- boring lymphatic glands, and a fatty degeneration of the liver. Roux and Yersin have shown that in these animals, when death does not ensue too quickly, paralysis of the posterior extremities frequently occurs, thus completing the experimental proof of the specific pathogenic power of pure cultures of this bacillus. Similar symptoms are produced in pigeons by the sub- cutaneous inoculation of one-half a cubic centimetre or more, but they commonly recover when the quantity is reduced to two-tenths of a centimetre (according to Roux and Yersin). The rat and the mouse have a remarkable immunity from the effect of this poison, and, according to the authors just spoken of, a dose of two centimetres, which would kill in fifty hours a rabbit weighing three kilo- grammes, is without effect upon a mouse that only weighs ten grammes. Old cultures are somewhat less virulent than fresh ones, but when replanted in a fresh culture- medium they manifest their original virulence. Thus a culture upon blood-serum, five months old, was found by Roux and Yersin to kill a guinea-pig in five days, but when replanted, it killed a second animal of the same species in twenty-four hours. Evidently a micro-organism which destroys the life of a susceptible animal when injected beneath its skin in small quantities, and which, nevertheless, is usually only found in the vicinity of the point of inoculation, must owe its pathogenic power to the formation of a potent toxic substance, which being absorbed gives rise to toxae- mia and death. This inference in the case of the diphtheria bacillus is fully sustained by the results of recent experimental in- vestigations. Roux and Yersin first demonstrated the pathogenic power of cultures which had been filtered through porous porcelain. Old cultures were found by these experimentalists to contain more of the toxic sub- stance than recent ones, and to cause the death of a guinea- pig, in the dose of two centimetres, in less than thirty- four hours. The filtered culture produced in these animals the same effects as those containing bacilli, viz., local oedema, hemorrhagic congestion of the organ, and effusion into the pleural cavities. Somewhat larger doses were fatal to rabbits, and a few drops injected subcutaneously sufficed to kill a small bird within a few hours. In their second paper, published in 1889, a year after the first, the same authors state that so long as the re- action of a culture in bouillon is acid, its toxic power is comparatively slight, but that in old cultures the reaction is alkaline, and in these the toxic potency is greatly aug- mented. With such a culture, filtered after having been kept thirty days, a dose of one-eighth of a centimetre in- jected subcutaneously sufficed to kill a guinea-pig, and in larger amounts it proved to be fatal to dogs when in- jected directly into the circulation through a vein. The same authors, in describing the nature of the poi- son in their filtered cultures, say that it is related to the 226 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Dipiitlieria. Diphtheria. diastases, and state that its toxic potency is very much reduced by exposure to a comparatively low temperature (58° C., for two hours), and completely destroyed by the boiling temperature (100° C., for twenty minutes). It was found to be insoluble in alcohol, and the precipitate obtained by adding alcohol to an old culture proved to contain the toxic substance. Loeffler also has obtained, by adding five volumes of alcohol to one of a pure culture, a white precipitate, soluble in water, which killed rabbits in a dose of one-tenth to two-tenths of a gramme when injected beneath the skin of these animals. It gave rise to a local mdema and necrosis of the skin in the vicinity of the point of inoculation, and to hyperaemia of the in- ternal organs. This deadly toxine appears to be an al- buminous substance, but its exact chemical composition has not yet been determined. Brieger and Fraenkel have succeeded in rendering guinea-pigs immune against virulent cultures of the diph- theria bacillus by injecting bouillon cultures three weeks old, which had been sterilized by exposure for an hour to a temperature of from 60° to 70° C., into the subcutane- ous tissues ; to the amount of from ten to twenty centi- metres. At first the susceptibility of the animal is rather in- creased than diminished, but at the end of two weeks immunity is said to be complete. Fraenkel is of the opinion that immunity results from the introduction of a substance which is not identical with the toxic product to which the cultures owe their pathogenic power. This latter is destroyed by a temperature of from 55° to 60° C., while the substance which gives immunity is still present in the culture after an exposure to a temperature of from 60° to 70° C., as is shown by the protective results of in- oculation made with such cultures. The recent researches of Behring show that the blood of immune animals contains some substance that neutralizes the toxic product contained in virulent cultures of the diphtheria bacillus. This effect is said to be produced when blood from such an animal is added to a filtered culture without the body as well as when the culture is injected into the living animal. This remarkable fact, if fully confirmed by further investigation, opens up a new field of experimental research, and may lead to important results in the therapeutics of diphtheria and other infec- tious diseases. According to Roux and Yersin, attenuated varieties of the diphtheria bacillus may be obtained by cultivating it at a temperature of from 39.5° to 40° C., in a current of air. And these authors suggest that a similar attenua- tion of pathogenic power may occur in the fauces of convalescents from the disease, and that possibly a sim- ilar non-pathogenic bacillus, which has been described by various investigators, has originated in this way from the true diphtheria bacillus. These authors further state, in favor of this view, that from diphtheritic false membranes preserved by them in a desiccated condition for five months, they obtained nu- merous colonies of the bacillus in question, but that the cultures were destitute of pathogenic virulence. They say it is then possible, by commencing with a virulent bacillus of diphtheria to obtain artificially a bacillus without virulence, quite similar to the attenuated bacilli which may be obtained from a benign diphtheritic an- gina, or even from the mouth of certain persons in good health. This microbe, obtained artificially, resembles completely the pseudo-diphtheritic bacillus. Like it, it grows more abundantly at a low temperature ; it renders bouillon more rapidly alkaline ; it grows with difficulty in the absence of oxygen. Generalized Occurrence of the Bacillus of Diph theria.- Frosch (Zeits. f Hygiene, vol. xiii., part 12, p. 49) gives the result of a series of his investigations upon this subject, prefacing them by the remark that the idea seems to have taken a pretty firm hold among observers that the diphtheria bacillus occurs only in those organs where there is a possibility for the forma- tion of membrane, this observation having been made by Babes, Kolisko, and Paltaus and Spronck. Frosch extended his study over fifteen cases of diph- (SUPPLEMENT.) theria, of which but ten turned out to betrue diphtheria, according to the bacteriological examination. Of the re- maining five, one was excluded after a critical examina- tion had been made; the second was also excluded because it was impossible to find the bacillus of diph- theria ; two of the remaining three proved to be cases of pneumonia produced by a bacillus ; and finally the fifth case was found to be one of tonsillitis, characterized by the presence of a new organism that will be described later by him. In the remaining ten cases the diphtheria bacillus was found in the blood and in the internal organs in every instance. After describing the method which he followed in making these observations, Frosch says that in these cases the diphtheria bacilli were found in the brain, the lungs, the liver, the spleen, the kidneys, in the cervical and bronchial lymphatic glands, as well as in the heart, blood, pericardial and pleural fluid, in greater or less numbers. Their occurrence in all of these organs was not uniform, but in all of the cases the bacilli were found in a number of the organs, and, therefore, the observations go to prove that diphtheria may be a generalized disease with only a local manifestation, and that the local manifestation in the throat need not of necessity always be due to the diphtheria bacillus : and finally, that the only way def- initely to prove whether the case is one of true diphtheria or no, is the discovery of the bacillus of diphtheria by means of bacteriological examination. Description of the Pseudo-Diphtheritic Bacil- lus.-The organism which we are now about to consider is one of great interest, whether it be considered distinct from, or a modified form of, the true bacillus of diph- theria. Loeffler, Von Hoffman, and others have report- ed finding bacilli which closely resemble the bacillus diphtheria?, but which differ from it chiefly in being non- pathogenic. The following account we take from the latest paper upon the subject by Roux and Yersin (their third paper, 1890): Out of 45 children in a Paris hospital, suffering from various non-diphtheritic affections, they found this variety of bacillus in the mucus from the pharynx and tonsils in 15 instances. Out of 59 healthy children in a village school on the seaboard, they found this organism 26 times. Of 6 children with a simple angina, but 2 furnished cultures of this bacillus. Finally, out of 7 cases of measles they found 5 in which they discovered this bacillus. The description which they give of it is as follows: The colonies of the pseudo-diphtheritic bacillus culti- vated on blood-serum are identical with those of the true diphtheria bacillus. At a temperature of from 33° to 35° C. multiplication begins and continues at an ordi- nary temperature, although slowly. Under the micro- scope the appearance of the bacillus which forms these colonies is the same as that of the bacillus diphtheriae. It stains readily with Loeffler's solution of methylene blue, and intensely by Gramm's method. Sometimes it colors uniformly, at other times it appears granular. It grows in alkaline bouillon, leaving a deposit upon the walls of the vessel containing the culture, and in this medium it often presents the "inflated" forms-pear- shaped or club-shaped. It is destroyed in a liquid me- dium by a temperature of 58° C. maintained for ten minutes. All of these characters are common to the pseudo-diphtheritic bacillus and the true bacillus diph- theriae. As points of difference between them we may note that the pseudo-diphtheritic bacillus is often shorter in the colonies grown upon blood-serum ; that its cult- ures in bouillon are more abundant ; that they continue to grow at a temperature of from 20° to 22° C., at which the true bacillus grows very slowly ; finally, that when comparisons of cultures in bouillon are made, it is ob- served that they both become acid and then alkaline, but that the change occurs much sooner in the case of the pseudo-diphtheritic bacillus. Like the true diphtheritic bacillus, the pseudo-diphtheritic grows in a vacuum, but less abundantly than the other. Inoculation of animals with cultures of this bacillus has never caused their death, but it is to be noted that 227 Diphtheria. Diphtheria. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) in some experiments a decided oedema has been produced in guinea-pigs at the point of inoculation, while in others there has been no local lesion. The most marked oedema resulted from cultures obtained from cases of measles. Do the facts that have been reported explain the ques- tion which occupies us ? Can it be concluded that there is a relation between the two bacilli ? On the one side, the presence of the pseudo-diphtheritic bacillus in the mouths of healthy persons, and of those who have angina manifestly not diphtheritic, seems to be opposed to the idea of a relationship between them. On the other hand, when it is considered that the non-virulent bacillus is very rare in cases of diphtheria ; that it is more abundant in " benign " diphtheria ; that it becomes more common in severe cases as they progress toward recov- ery ; and finally, that they are more numerous in persons who have recently had diphtheria than in healthy per- sons, it is difficult to accept the idea that the two microbes are entirely distinct. The morphological differences which have been referred to are so slight that they prove nothing. The two micro-organisms can only be distin- guished by their action upon animals, but the difference of virulence does not at all correspond with the difference of origin. As regards the forms and the aspect of cultures the true and the false diphtheria bacilli differ less than virulent anthrax differs from a very attenuated anthrax bacillus originating from the same source. Besides, the sharp distinction which is made between the virulent and non- virulent bacilli is arbitrary. It depends upon the sus- ceptibility of guinea-pigs. If we inoculate animals still more susceptible, there are pseudo-diphtheritic bacilli which must be classed as virulent. If, on the contrary, we substitute rabbits for guinea-pigs in our experiments, there are diphtheritic bacilli which must be called pseudo- diphtheritic. In our experiments we do not simply en- counter bacilli which are very virulent, and bacilli which are non-virulent: between these two extremes there are bacilli of every degree of virulence. Abbott has recently (1891) published the result of his researches with reference to the presence of the pseudo- diphtheritic bacillus in benign throat affections. He made a bacteriological study of 53 patients, 9 of whom were suffering from acute pharyngitis, 14 from acute fol- licular tonsillitis, 8 from ordinary post-nasal catarrh, 2 from simple enlarged tonsils, 15 from chronic pharyn- gitis, 1 from subacute laryngitis, 1 from chronic laryn- gitis, 1 from rhinitis, and 2 from an affection of the tonsils and pharynx. In 49 cases nothing of particular interest was observed. A variety of micro-organisms were isolated, and of these the pyogenic micrococci were the most common. In four cases micro-organisms were found which resembled the bacillus diphtheria; of Loef- fler in their morphology and growth in the culture-me- dia, but which proved not to be pathogenic. Abbott says the single point of distinction that can be made out between the organism obtained in three of his cases and the true bacillus of diphtheria is in the absence of path- ogenic properties from the former ; whereas, in addition to this point of distinction, the organism from a fourth case gives, as he states, a decided and distinct growth upon the surface of sterilized potato. Experiments have been made which tend to show that diphtheria, as it is observed in the lower animals, is not the same thing as the diphtheria which affects man. It has been found that there are distinct varieties of bacteria in these different forms of diphtheria. Descriptions of these will now be given. The Bacillus Diphtheria Columbarum.-This was described in 1884 by Loeffler, who obtained it from diph- theritic pseudo-membranes in the mouths of pigeons dead of a form of diphtheria which prevailed in some parts of Germany among these birds, and among chickens. Red- dened patches first appear upon the mucous membrane of the mouth and fauces, and these are covered later with a rather thick yellowish layer of fibrinous exudate. In pigeons, the back part of the tongue, the fauces, and the corners of the mouth are especially affected ; in chickens, the tongue, the gums, the nares, the larynx, and the con- junctival mucous membrane. The disease is especially fatal among chickens-the young, and those of choice varieties being most suscepti- ble. It is attended at the outset by fever, and usually proves fatal within two or three weeks, but may last for several months. Morphology.-They are short bacilli, with rounded ends, usually associated in irregular masses, and resem- bling the bacilli of rabbit septicaemia, but a little longer and not quite so broad. In sections from the liver they are seen in irregular groups in the interior of the vessels. It is an aerobic, non-motile, non - liquefying bacillus. It grows in nutrient gelatine in the form of spherical white colonies along the line of puncture, and upon the surface it has a whitish layer. Under the microscope the colonies in gelatine plates have a yellowish-brown color and a slightly granular surface. Upon blood- serum the growth consists of a semi-transparent grayish- white layer ; upon potato a thin layer is formed having a grayish tint. Pathogenesis.-Pigeons inoculated with a pure culture in the mucous membrane of the mouth are affected ex- actly as are those which acquire the disease naturally. Subcutaneous inoculation in pigeons gives rise to an in- flammation resulting in local necrotic changes. Pathogenesis for Rabbits and for Mice.-Subcutaneous injections in mice give rise to a fatal result in about five days. The bacillus is found in the blood and in the va- rious organs, in the interior of the vessels, and sometimes in the interior of the leucocytes, and they are especially numerous in the liver. The lungs are dotted with red spots ; the spleen is greatly enlarged, and the liver has a marbled appearance from the presence of numerous ir regular white masses scattered through the pale red parenchyma of the organ. These white masses are seen in sections to consist of necrotic liver tissue, in the centre of which the bacilli are found in great numbers, in the interior of the vessels. This appearance is so character- istic that Loeffler considers inoculation in mice to be the most reliable method of establishing the identity of the bacillus. It is not pathogenic for chickens, guinea-pigs, rats, or dogs. There seems to be some doubt whether the form of diphtheria which prevails among pigeons, and which Loeffler has shown to be due to the bacillus above described, is identical with the diphtheria of chickens. Diphtheria in man has been supposed by some authors to be identical with that which prevails among fowls, and, possibly, this may be the case, under certain circum- stances. But the evidence seems to be convincing that there is an infectious diphtheria of fowls which is pecu- liar to them, and which, under ordinary circumstances, is not communicated to man. The Bacillus Diphtheria Vitulorum.-This was described by Loeffler in 1884, and was obtained by him from the pseudo-membranous exudation in the mouths of calves suffering from an infectious form of diphtheria. The disease is characterized by the appearance of yel- low patches upon the mucous membranes of the cheeks, the tongue, and sometimes the larynx and nares of in- fected animals. There is a yellowish discharge from the nose, an abundant flow of saliva, occasional attacks of coughing and diarrhoea. Death may occur at the end of four or five days, but usually the animal survives for several weeks. Diphtheritic patches, similar to those in the mouth, are also found in the large intestine, and there are scattered abscesses in the lungs. Loeffler, in a series of seven cases examined, obtained from the deep portion of the pseudo-membranous deposit ,a long bacil- lus which appeared to be the cause of the disease. Morphology.-They are bacilli five to six times as long as they are broad, usually united in long filaments. The diameter of the rod is about half that of the bacillus of malignant oedema. Biological Characters. - Attempts to cultivate this bacillus in nutrient gelatine, blood-serum from sheep, and various other media, were unsuccessful. But when fragments of tissue containing the bacillus were placed in blood-serum from the calf, a white border consisting 228 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT. Diphtheria. Diphtheria. of the long bacilli was developed. These could not, however, be made to grow when transferred to fresh blood-serum. Pathogenesis.-Mice inoculated subcutaneously with the fresh diphtheritic exudation died in from seven to thirty days. The autopsy disclosed an extensive infiltra- tion of the entire walls of the abdomen, which often penetrated the peritoneal cavity and enveloped the liver, the kidneys, and the intestines in a yellowish exudate. The bacillus was found in this exudate, and by inoculat- ing a little of it into another animal of the same species a similar result was obtained. It is not pathogenic for rabbits or guinea-pigs. The Bacillus of Intestinal Diphtheria in Rab- bits.-This was described by Ribbert, in 1887, and was obtained by him from the organs of rabbits which had an affection characterized by a diphtheritic inflammation of the mucous membrane of the intestines. The autopsy revealed, also, swelling of the mesenteric gland, and minute necrotic foci in the liver and spleen. Morphology.-Bacilli with slightly rounded ends, from three to four micromillimetres long and from one to one and four-tenths micromillimetre in diameter. Often united in pairs or in filaments containing several ele- ments. Stain with the usual aniline colors, but not so readily in sections as do some other bacteria. Ribbert recommends staining with aniline-water, fuch- sine solution, washing in water, then placing the section in methylene blue solution and decolorizing in alcohol. The bacilli cannot be stained by Gramm's method. Biological Character.-It is an aerobic, non-liquefying bacillus. The question of its motility is not yet settled. Upon gelatine plates semi-transparent, grayish colonies are formed, which later turn a brownish color. The sur- face of these is finely granular and of a pearly lustre. In needle cultures in nutrient gelatine the growth along the line of puncture is very scanty. On potato a flat, whitish layer is formed which extends slowly over the surface. It grows best at a temperature of from 30° to 35° C. Pathogenesis.-Pure cultures injected into the peritoneal cavity, or subcutaneously, in rabbits cause the death of these animals in from three to fourteen days, according to the quantity used. At the autopsy necrotic foci are found in the liver and spleen and the mesenteric glands are enlarged, but the intestines present a healthy appear- ance ; but when cultures are introduced into the alimen- tary canal the characteristic diphtheritic inflammation of the mucous membrane of the intestines is produced. This result was obtained both by direct injection into the interior of the intestines and by injecting cultures into the mouth. Diagnosis. The characteristic sign of diphtheria is the presence of a circumscribed membrane with more or less congestion of the surrounding parts. The fever is not always a prominent symptom, and but little importance can be attached to it. High fever at the beginning of the dis- ease should make the diagnosis doubtful for the time. Swelling of the glands of the neck, especially about the angle of the jaw, is an important aid in the diagnosis. The absence of this sign is, however, of no weight as negative evidence. It is of especial value when the pro- cess is seated in the nose, and its exact location cannot be readily ascertained. Diphtheria of the vagina and conjunctiva and of wounds can only be confounded with a simple purulent coating where ocular examination alone is at command : confusion between the two processes can very seldom oc- cur. The eruption, when it is present, occurs about the chest, neck, and abdomen, and is to be distinguished from that of scarlatina, according to Jacobi, in that this latter first appears about the hips and extremities. Not in- frequently, however, the differential diagnosis is ex- tremely difficult, and can be made only after sufficient time for observation of the efflorescence has elapsed. Albuminuria, if present in the first few days of attack, is an indication of diphtheria ; if it appears later, of scarlatina. The diagnosis of diphtheritic paralysis pre- sents no difficulties if the case has been watched from the beginning and the diagnosis of the primary disease has been satisfactorily made. The settlement of the question as to whether a paresis is a sequel of diphtheria or not, is often impossible if the previous history be obscure. The special characteristics of the diphtheritic paralysis are, that it very frequently starts from the pharynx ; that its course is exceedingly irregular ; and that it is mostly peripheral in character, generally motor, and sometimes sensory. Differential Diagnosis.-Diphtheria may be confounded with scarlet fever, confluent herpes of the throat, acute tonsillitis, and acute laryngitis. In addition to the points already touched upon, the following aids to diagnosis may be mentioned : The disease may be differentiated from scarlet fever by a consideration of the following facts : In scarlet fever there is less constitutional disturbance ; the throat is less uniformly reddened ; the membrane, if any exists at all, is more easily detached ; and the larynx is almost never attacked ; but, on the other hand, haematuriais common, while it is rare in diphtheria. The rash is different in the two diseases. In diphtheria it is not commonly present; it appears at irregular periods, is partial, appears sud- denly in patches, and is of an uniform erythematous red- ness, without the punctated appearance peculiar to the scarlatinal eruption (Meigs and Pepper). It is very often impossible to differentiate acute tonsil- litis from diphtheria at first. If the case be one of ton- sillitis, however, the inflammation either subsides or suppuration occurs, which at once makes the diagnosis plain. In such cases aid must be sought from the bac- teriological examination. Confluent herpes has the pecu- liarity of a rapid rise in temperature, followed by an equally rapid fall. The pain in the throat is of a pecu- liar smarting character, and there is no tendency to spread. The presence of herpes of the lips is often of very great help in making out the diagnosis. Catarrhal laryngitis of a severe form is oftentimes impossible to differentiate from diphtheria, especially in the early stages. When the disease is fully developed it is easier to distinguish it correctly, for catarrhal laryngitis nearly always ends in recovery and without the severe sequelae of diphtheria. Decent investigations shore that it is not possible to make a certain diagnosis of diphtheria excepting by the bacterio- logical examination; the discovery of the true bacillus of diphtheria, in material taken from the suspected spots of inflammatory reaction, settles the question. That there are other throat affections very closely resembling, from a clinical point of view, true diph- theria, is unquestionable, and in this connection the work of Martin (to be found in the Annales de VInst. Pasteur, May, 1892, p. 335) is of very great interest. In this article the author reports that he has made both a clini- cal and a bacteriological examination of two hundred children who were sent into the diphtheria ward with a clinical diagnosis of diphtheria. The very full extracts that we shall give from this article are justified by the extreme importance of the subject. He says that when a child arrives at the hospital, it is likely to present one of these two different conditions, viz. : 1, There may be a white angina, with or without laryngeal trouble ; or, 2, there may be no visible false membrane, the child presenting only the symptoms of a laryngitis ; in other words, as the parents say, it has the croup. The rapid examinations to which these patients are submitted are necessarily inconclusive, but usually, as a result, they are sent into the diphtheria ward. In order to arrive at a certain diagnosis, bacteriology, according to this author, now furnishes two methods of procedure, first, the examination of the false membrane, and second, cultivation upon coagulated serum and ex- amination of the cultures after twenty-four hours. 1. The Direct Examination of the False Membrane.- This examination was made after the method of Roux and Yersin (in the Annales de VInst. Pasteur, 1890), and in many cases it was possible to discover at once a bacil- 229 Diphtheria. Diphtheria. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. lus of diphtheria, thus facilitating the making of a rapid diagnosis. This, however, was not always practicable, much care and great expertness being required for such work ; many preparations had to be examined, and it had to be definitely determined that the bacillus seen stained well according to Gramm's method. Very often it is exceedingly difficult to recognize the bacillus of diph- theria among a great number of other bacteria, and when it is not discovered it is not permissible to say that the case is not one of diphtheria. 2. Cultivations from the Suspected Spots.-In certain cases of croup without false membranes the microscopic examination of the mucus of the posterior portions of the throat, spread out upon a cover-glass and colored with methylene blue, did not permit a definite diagnosis, and at the same time this same mucus sowed upon serum gave very numerous colonies of the bacilli of diphtheria. The best method is to always use coagulated serum, which is a medium that is very favorable for the devel- opment of the bacillus of diphtheria, and upon which it develops in a few hours, before any-or at any rate most -of the other bacteria of the mouth. The culture is to be taken directly from the throat with a platinum needle flattened into the shape of a spatula at the end ; the false membranes, when they exist, are to be touched, or simply the mucus in the apparently simple cases of laryngitis without false membrane; then the spatula is drawn over two or three tubes of serum with- out retouching the throat. The tubes are then to be placed for twenty-four hours in a thermostat at 37° C., and, if it be a case of true diphtheria, numerous colonies will soon appear, especially upon the flrst tubes that were inoculated ; even after the lapse of eighteen hours they can be recognized and examined, and it was never found necessary for the author to wait more than twenty-four hours. After a longer time than this the other bacteria commenced to develop and rendered the diagnosis more difficult. In cases of severe diphtheria the colonies of the bacillus of Loeffler are more numerous than in mild cases. In certain anginas that were not diphtheritic no colonies developed during the first twenty-four hours. The presence of a great number of colonies upon the tubes make probable the diagnosis of diphtheria, espe- cially if this occurs soon ; but there are certain anginas produced by a coccus that also gives numerous colonies after the lapse of twenty-four hours, upon inoculation upon blood-serum. In the latter case the microscopic examination will determine the truth and render all con- fusion impossible. Upon the serum the colonies of the diphtheria-bacillus are round and very regular, of a yellowish-white color, and more opaque in their centre by transmitted light ; as they grow older they increase in size, remain regular, and become sometimes of a pale yellow color. Certain cocci give, also, colonies resembling those of diphtheria, but their surface is more moist, while their centre is not thicker than the edges. The colonies of the streptococci are still very small at the end of twenty-four hours, and it is not possible to confound them with those of the bacillus of diphtheria, which are at least six or seven times as large. Colonies of the staphylococcus aureus have also been found, as well as other bacteria that liquefy the serum. These colonies develop especially after twenty-four hours, and do not trouble the observer. In the entire observation only those colonies need be considered that develop upon serum, and this is the only nutrient medium that it is at all necessary to employ. When the diphtheria colonies were in a great major- ity, the cases were regarded as pure diphtheria ; but if with the bacillus of diphtheria numerous colonies of different species were found, then the bacteria mixed in the secretions were considered. Those most often asso- ciated with the bacillus of diphtheria were micrococci and streptococci, their presence seeming to have an influence upon the progress of the disease, and furnishing, also, a basis for a prognosis. The author claims that the examination of the number and of the form of the colonies is only a preparatory (SUPPLEMENT. work, and must be followed by the microscopical exam- ination, which shows that the bacillus of diphtheria does, not always present itself under the same form. He dis- tinguishes three varieties : (1) Long bacilli, which are the typical organisms of diphtheria described by all the au- thors ; there are also (2) small bacilli that are placed side by side, and appear thicker than the ordinary bacilli, be- cause they are shorter ; and finally, between these two, there is (3) an intermediate form of bacillus of a medium, length, the individuals of which are also placed side by side. The colonies of these three forms are not distin- guishable upon serum, although the short bacilli often give whiter, more moist colonies, which continue to in- crease, even outside of the thermostat, and answer very closely the description given by Loeftier of the pseudo- diphtheritic bacillus. From the point of view of virulence there are differ- ences between these bacilli of different forms, but they are considered to be, all of them, bacilli of diphtheria. Martin found the short bacilli very mild in their action, the medium-sized bacilli a little more toxic, while the long bacilli are the most infectious. Among a number of cases of diphtheria which he had verified by bacterio- logical examination there were several fatal ones in which the short bacilli were found, but these were always asso- ciated with the streptococci; and often, in cases of mea- sles with sore throat, were found the short bacilli, which, although mild under ordinary conditions, seemed, in these particular cases, to take on more virulent proper- ties. The author, in discussing further the question of diph- theria, lays especial stress upon what appears to be an exceedingly important point, particularly in the light of the investigation of Frosch, already quoted in this arti- cle. He says, that at autopsies he often looked for the bacilli of diphtheria in the respiratory tract, especially in the pulmonary parenchyma, and that he very often suc- ceeded in finding them in these places. In all cases there was an inflammation of the lungs, which appeared under the form of a lobular broncho-pneumonia. Many times it was in the lungs that the greatest quantity of the bacilli was found, and in these observations there was no false membrane in the throat and very little in the trachea. It appeared to be the pulmonary paren- chyma that was the principal seat of the infection. It even appeared to him, in certain cases, that the lungs were primarily attacked, and that the trachea and the lar- ynx were only the secondary seats of the disease. By this study of two hundred cases of supposed diph- theria it has been established that there are in reality three great classes of disease : the non-diphtheritic an- ginas, of which there were forty-three cases ; the diph- theritic anginas of which there were sixty-nine cases; and croup, of which there were eighty-eight cases. In other words, forty-three cases had been sent to the diphtheria; ward that did not have diphtheria at all. Among these cases four were attacked with measles. This point alone emphasizes, more than anything well could, the ex- treme importance of a correct differential diagnosis, and that this diagnosis should be made before the patient is sent in to the diphtheria ward. In other words, every hospital should have a detention-room or observation ward, in which suspected cases of diphtheria should be detained long enough to determine whether or not they be cases of true diphtheria, and whether, as a conse- quence, they should or should not be sent to the diph- theria ward. There can be no doubt but that this is a matter of very great importance. More remarkable still is the observation that out of these forty-three cases thirty-six, in which it was not possible to determine the presence of the diphtheria ba- cillus, showed the occurrence of false membranes in some portions of the throat. There were, therefore, this number of clinical errors in diagnosis, and the sufferers were put in jeopardy of their lives by reason of the omission of this extremely important point in diagnosis. The non-diphtheritic cases are divided into angina pro- duced by micrococci-the most common of these occur- ring in the form of a diplococcus, which has already been, 230 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT. Diphtheria. Diphtheria. described by Roux and Yersin, and which is found in immense numbers in the false membrane, where it ap- pears in places as a pure culture. This diplococcus is to be regarded as the cause of the process. If we sow the cocci taken from one of the false membranes which they have produced, upon serum, there will be developed, in less than twenty-four hours, non-liquefying colonies that are as numerous and as pure as the colonies of the true diphtheria-bacillus obtained from typical cases. Upon a superficial examination these colonies appear to resemble those of diphtheria, but they are more moist and more transparent. Loeffler's methylene blue easily stains the coccus, which also stains by the method of Gramm, and it can also be cultivated upon nutrient agar. The false membranes produced by the activity of this organism re- semble so closely true diphtheritic membranes that they are almost invariably regarded as such. Like the latter, they are reformed very quickly if they be torn away. The progress of the cases is characterized by the exhi- bition of extreme prostration, and a marked characteristic of these false membranes is their tendency to recurrence. The sore throats produced by this coccus do not as a rule terminate fatally ; they generally become better very rapidly and leave no evidences of systemic poisoning be- hind them. A second class of non-diphtheritic cases owe their ori- gin to the presence of streptococci. The streptococcus pyogenes is an organism which is very commonly found in the mouth, and which can produce alterations of the mucous membrane resulting in fibrinous exudation and the formation of pseudo-membranes. A number of ob- servers have seen this occur, notably Prudden, who worked upon cases of apparent diphtheria produced by this streptococcus, and confounded these cases with those of true diphtheria. Cases produced by this streptococ- cus are not virulent any more than are those of the pre- ceding coccus, at least to anything like the same degree as the cases resulting from the activity of the true diph- theria bacillus. The second class into which the 200 cases are divided is that of diphtheritic anginas without croup. Of these there were 62 cases of pure diphtheritic anginas, fol- lowing out the ordinary clinical history of cases of diphtheria. Of the remainder, some of the cases were diphtheritic anginas mixed with the streptococci, and diphtheritic anginas mixed with the micrococci. The general history of these tended to show that a mixed in- fection produces a milder form of diphtheria than when the diphtheria bacillus is present by itself. Another division of the cases was into croup-croup with false membranes-of which there were 54 cases, and of these there were 17 cases which were shown to be non-diphtheritic, and 13 cases of diphtheritic croup with mixed bacterial infection-some of them with the streptococcus and some with the coccus alone. And then there were cases of pure diphtheritic angina accom- panying croup. Finally, the last division of cases is that of croup without false membrane in the throat ; and of these there were 34, 21 of which were proved to be diph- theritic, while 12 were not. The author, in concluding his work, says that his first object in undertaking it had been to find out how far bacteriology could aid the clinician in the diagnosis of diphtheria ; and he makes the statement, which can scarcely be disputed, that the most accurate clinician is deceived once out of five times-whether it be in the direction of mistaking a non-diphtheritic angina for diphtheria, or in that of not recognizing a case of true diphtheria. Bacteriological researches have furnished many extremely interesting and important points bearing upon the clinical and bacteriological history of the pseudo- membranous anginas that are non-diphtheritic. Bacteria play an exceedingly important part in affections of the throat, and it is bacteriology alone that can clear up the question of the anginas, for their clinical characteristics are entirely insufficient to distinguish them. As a conclusion to this remarkable and important pa- per the author makes the following statements : Many anginas with false membranes, and, also, many cases of croup, are confounded with diphtheria. Bac- teriological examination furnishes the most certain and the most rapid means for making the exact diagnosis of diphtheria. There are pure diphtherias and diphtherias associated with other bacterial infections, and among the latter-the diphtherias with other bacteria-those in which the streptococci are found are the most severe, while those in which the micrococci are found are the most benign. The temperature curve furnishes an ex- cellent method for determining the prognosis, and upon this point the'author has laid very great stress, instanc- ing many cases (accompanied by reproductions of charts) in which a study of the temperature observations, made at the same hour morning and night, revealed the fact that there appeared to be a curve almost as characteristic for diphtheria as that which is usually supposed to be- long to typhoid fever. In a recent number of the Philadelphia Medical News (December 10, 1892) Wyatt Johnston, of Montreal, makes a suggestion for the ready diagnosis of diphtheria that seems to be entirely practicable. It consists in boiling an egg hard, which, of course, solidifies the albuminous contents, and, at the same time, sterilizes the shell. There is prepared at the same time an ordinary egg-cup, which may be sterilized by burning a little alcohol in its hol- low. A small portion of the shell of the egg is then chipped off at one end, and a minute portion of material from the throat of the suspected case is drawn over it with a platinum needle, three or four separate times, ■without retouching the platinum needle to the throat, and the egg is then inverted in the egg-cup and the whole placed in a warm place over-night. By this means it is often possible to make a perfectly satisfac- tory diagnosis of diphtheria in a comparatively short time, and with the simplest form of apparatus. For if the diphtheria bacillus is present it will grow rapidly upon this solidified egg-albumen, and the characteristic colonies will be present upon the following morning, when the diagnosis may be further verified by micro- scopic examinations of the colonies that have made their appearance. Park, in a recent number of the Medical Record (February 11, 1893), expresses some doubt in re- gard to the trustworthiness of the method just described. Among those who have expressed themselves strongly in regard to the importance of resorting to bacteriologi- cal examinations in making a diagnosis of diphtheria may be mentioned Martin, from whose paper we have already given very full extracts ; Park {Medical Record, July 30 and August 5, 1892, and February 11, 1893); Ba- ginsky (Berliner klin. Wochenschr., February 29, 1892); and Koplik (Neic York Medical Journal, August 25, 1892). There is doubt whether in the course of time clinical features will be discovered by means of which true diph- theria can be distinguished from the forms of disease which resemble it. Prognosis. The prognosis in each individual case should be very guarded. To assume that recovery is probable, before the disease has run its course, is exceedingly unsafe, and even then relapses may occur and the result be once more placed in doubt. The general course of an epi- demic may have some influence upon prognosis, but that influence is exceedingly small, for it is the mild cases that are often the most deceptive. Speaking very generally, the prognosis is favorable where the local manifestation of the disease is of small extent and is situated on a part that has but little communication, by way of the lymphatics, with the rest of the system. An indication of sluggishness in the course of the disease, as in diphtheria of the womb or the angles of the mouth, is unfavorable, as is also the extension of the disease to the larynx. The septic or gangrenous forms of diphtheria are especially dangerous, but the elevation of the body temperature has not been thought to have any particular bearing on the final result. Martin, however (loc. cit.), lays great stress upon the temperature curve as a guide in prognosis. A rapid, small, and irregular pulse is a sign of failure of the heart, but is not a very bad sign so long 231 Diphtheria. Diphtheria. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) as there is an approximately normal relation between it and the rate of respiration. Every complication adds to the gravity of the prognosis. During convalescence the extension of the paralysis to the muscles of respiration is a very alarming sign. The indications of immediate danger are croupy symptoms arising from the extension of the membrane into the larynx, a brown or black ap- pearance of the false membrane, a hemorrhage from the nose, throat, bronchi, or intestines, copious discharge from the nostrils, intense albuminuria, great swelling of the cervical glands, decided fall of temperature, and nau- sea or diarrhoea at an advanced period of the disease. Any one of these may occur without being necessarily fatal, but two or more mean extreme danger. Treatment. There is no specific for diphtheria. Treatment is to be based, first, upon general principles, and, second, upon local applications. Measures to sustain the general health are of the greatest importance, and should receive special attention. The room should have a temperature of from 62° to 65° F. ; it should also have, if possible, a sunny exposure, and there should be an open fire. The diet should be very nutritious, consisting of beef-tea, milk, and the like, given regularly in small quantities and at short intervals, especially during the night, for it is then that the vital powers are in their least resistant state. If signs of failure of the heart appear, the patient's head should be kept as low as possible. High fever should be treated with sponge-baths of tepid water ; quinine and salicylate of sodium are also recommended. Collapse should be met with the free exhibition of stimulants, and severe vomiting or diarrhoea should be checked at once. Quinine and the method of employing it should be left to the judgment of the physician. As complete isolation of the case as is possible should be practised ; the sick-room should be kept cool (the temperature spoken of above is the best), and plenty of fresh air should be admitted. The nurses should keep the mouth closed when over the patient, and any caressing or fondling should be abso- lutely prohibited. It is also a good plan to wear cotton in the nostrils as a filter. The general treatment should be begun early, as there is no typical course to the disease, and, therefore, delay is dangerous. There is small chance of giving too much stimulant, and a tonic never does harm, whereas its omission may be seriously felt. An exceedingly important measure is the disinfection of the room, and of all objects which may have come in contact, in any way, with the patient. In the case of a room this may (?) be effected by fumigation ; two pounds of rolled sulphur to every seventeen hundred and twenty-eight cubic feet of space being burned for this purpose. A copperas solution, one and a half pound to a gallon of water, may be used for everything that can be placed in it. Better than this is a solution of corrosive sublimate (one part to ten thousand of water) which should be freely used in all drains, privies, and so on, and for soaking all soiled linen or cloth- ing. The instructions given for disinfection by the National Board of Health, Bulletin No. 10, September 6, 1879, are simple and effective, provided the corrosive sublimate solution be substituted for the other agents mentioned. Best of all, however, is prolonged boiling of all infected material. The infectious agent is confined, as we know, to the affected area, and in diphtheria of the mouth and air-pas- sages, it will be found only in these situations or in material coming from them. The spread of infection should therefore be a comparatively easy matter. All saliva, mucus, blood, etc., coming from the patient, should be received upon towels or old rags that may be at once folded inward and subjected to boiling for at least half an hour. The same treatment should be given to the bed-clothing of the patients. Spoons and other articles coming in direct contact with the affected parts should be dropped at once into a vessel containing water, and then also boiled as in the case of the other articles. Nurses and other attendants may avoid infection, them- selves, or the danger of carrying it in their clothing, if they put on a loose gown, tight at the wrists and neck, at the entrance to the sick room, and remove this article of dress immediately upon leaving the room. The hands should at once be thoroughly cleansed by soap and water as hot as can be borne. The special precautions that are needed in the case of diphtheria of the air-passages, for the safety of the ob- server, are to avoid inhalation of the breath of the pa- tient, and this especially at the time of coughing. The infectious material of diphtheria is so well known now, its localization is so defined, and at the same time so limited, that there should be no especial danger in the future of its being transported. Special Treatment.-There is, at present, no specific for diphtheria. The first indications are to employ those remedies which have, or seem to have, an effect in soften- ing or destroying the false membrane. The principal among these are steam inhalations, which have been em- ployed in various ways, as from the nozzle of a kettle and by dropping hot bricks into water. The best method of employment is by means of the atomizer, used very frequently in conjunction with some therapeutic agent, such as carbolic acid, salicylic acid, salt, or chlorate of potassium. This latter remedy is one very widely em- ployed and of especial benefit-not, however, as a specific against the disease. Its beneficial effects arise from its alleviating the laryngitis and stomatitis accompanying the disease, and from its placing the surrounding parts in such a condition that the false membrane rarely spreads. It should be given freely, that is, in small doses and frequently. One of the best methods of ap- plication is by the steam atomizer ;-using the spray for five or ten minutes every hour has been followed by the most successful results. The strength of the solution to be used is that of saturation ; a sufficient dilution for safety being effected by the steam. For children the solution should be weakened so that a child of three years will not get more than twenty grains in the twenty- four hours. Serious results, such as acute nephritis, have been recorded from overdoses of this drug, but properly employed its great value is unquestionable. It does not have any marked effect in dissolving the diph- theritic membrane, as has been supposed. Steam is of value only in those cases in which the membrane is upon the surface. Water, to promote the secretions, is of value, either given alone or combined in hot drinks of various kinds. Cold water and cold ap- plications in the form of ice-bags are useful in many ways in easing the discomfort of the swollen and sore throat. Cracked ice, water ices, and ice-cream, give re- lief. Sponging with tepid water when the body tempera- ture is high, and the skin hot and parched in conse- quence, gives great comfort to the patient. If there are signs of a weakened circulation, however, this remedy is contraindicated. Lime-water, either alone or in com- bination with glycerine, applied locally to the throat by means of spraying, sponges, or gargles, has been very highly thought of as exerting some solvent effect upon the membrane. The action is so slow, however, that the good results obtained are probably due, as suggested when speaking of chlorate of potash, more to their cleansing effects than to any specific action ; and the same is probably true of acetic acid and other well- known remedies. Peroxide of hydrogen is one of the more recent and highly endorsed remedies in the treatment of diphtheria. I have obtained good results, apparently, from the use of the following formula : 3. Acid, sulphuros. dil x.-xxx. Tinct. ferri chlor 3 v. Syrup, aurant. cort $ jss. Aq. dest § ijss. M. Sig. : Half a teaspoonful to a teaspoonful in a tablespoonful of water. 232 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Diphtheria. Diphtheria. This may be repeated every two to four hours, and should be given through a glass tube. Inhalations of the oil of turpentine are recommended to be administered for ten or fifteen minutes every hour, il better method of employment is by boiling some water, containing half an ounce of the spirits of turpentine, in the room. This should be kept going continuously, Chloride of ammonium seems to be of use occasionally. Dose, internally, from one to two grains every two or three hours, for a child of two years ; or half a drachm to be burned over a flame in the room. Mercury has been extensively used, and is very strongly supported by Jacobi, of New York. Astringents, such as alum, tannin, nitrate of silver, have almost entirely passed out of use ; their employ- ment seeming to retard, rather than to favor, the sub- sidence of the exudative process. Chloride of iron, introduced by Gigot, in France, in 1848, has been used very extensively and beneficially, if given freely and at frequent intervals. As much as from five to ten drops of the tincture every half hour may be given. Carbolic acid is helpful merely as a cleansing agent, and perhaps not even for that. Ozone has been recom- mended, with no very great results from its employment. Salicylic acid, quinine, potassa fusa, and other strong gaits, bromine, and so on, are among the remedies that have been proposed. Boric acid solution (one to thirty), used as a gargle, and benzoate of sodium (one to eighteen parts of water), are among the other remedies that have been proposed. Sulphur and cubebs (used in capsules) nearly complete the list of remedies. Gargles, sprays, and local applications of 'watery solu- tions of corrosive sublimate (varying from one in three thousand to even greater strengths) have also been em- ployed. Mechanical removal of the membranes must not be practised. When these can be detached without force they will come off of themselves, and this time should be patiently awaited. Swelling of the lymphatic glands in diphtheria must be treated as if an idiopathic affection, by applications of cold water or ice compresses, and, if absolutely neces- sary, by incision. Nasal diphtheria must be combated by the assiduous use of douches composed of some of the remedies spoken of above ; they should be used every hour. Laryngeal diphtheria is occasionally helped by the em- ployment of emetics. It is when the symptoms become urgent, in this form of disease, that tracheotomy is re- sorted to; the indications for the operation being the danger of suffocation from stenosis of the larynx. The mortality after the operation increases in proportion to the delay in its performance. As a substitute for tracheotomy in stenosis of the larynx in diphtheria, the famous procedure of intubation has been very widely employed. The success attending this substitute for the cutting operation has not been so.great as was hoped at first; doubts of its effectiveness in prac- tice have increased very much of late. Farther on in this volume, under its appropriate heading, will be found a fresh contribution to the subject of intubation, by the inventor of the procedure, Dr. Joseph O'Dwyer, of New York. The reader is referred to this for ad- ditional information on the subject. Diphtheritic paralysis may in many cases be treated simply by rest, good food, stimulants, tonics, such as iron and quinine, and sometimes by electricity. Strych- nia is recommended, but its usefulness is very doubtful. Diphtheritic conjunctivitis must be attacked at once, and vigorously, with ice applied locally, and boric acid in concentrated watery solution, every hour. The unin- fected eye must be carefully protected from inoculation, and this is best done by covering it with lint and col- lodion, or with lint, cotton, and adhesive plaster. General Investigations for Methods of Treat- ment by Bacteriological Research.-In order to understand clearly the attempts which have been made to obtain something in the way of a cure for diphtheria by (SUPPLEMENT.) bacteriological methods, a statement should be made of the general way in which immunity and cure, in infec- tious diseases, has been sought by different observers, along bacteriological lines. These methods are well summarized by Behring in the tables given by him in the first part of his work upon " Blood-serum Therapeu- tics," published in Leipzig, 1892. In this first part he gives three tables : Table I. A Method of Obtaining Immunity against Infectious Disease.-A. Immunity with the, help of disease-producing materials, similar to those against which immunity is sought. 1. The Attenuation Method (Pasteur's method ; Vacci- nation). Of general applicability, (a) Immunity by the employment of attenuated cultures of living bacteria. (b) Immunity by attenuated poisons. In both of these cases one has the choice of producing the attenuated ma- terial by the following methods : (a) Attenuation by high temperature ; (b) attenuation by low temperature ; (c) attenuation by means of chemical agents ; (d) attenua- tion by atmospheric influences, especially insolation. 2. The method by dilution. Of limited applicability. Consists in the employment of (a) cultures of full viru- lence, (b) culture-fluids of full toxicity. 3. The combined method (Behring's method). Of gen- eral applicability. Consists in the obtaining of immunity by the help of the attenuation method first, and then fol- lowing it by the employment of cultures of full virulence and full toxicity in order to obtain a very high degree of immunity. B. Obtaining immunity by the help of disease-producing materials of a different kind from those against which im- munity is sought. 1. The employment of living bacteria cultures, or of specific chemical materials which are contained in it. 2. The employment of chemical preparations. 3. The obtaining of immunity by the direct transfer- rence of the immunity-containing agent. This is Behr- ing's blood-serum therapeutics. Table II. The Method of Action of the Agent Producing Immunity.-1. By the destruction of the living cause of the disease. 2. By hindering the growth of this living cause. 3. By the destruction of its infectious properties, which result, according to Behring, is effected by taking away from the bacteria their power of producing their poisonous products. 4. By the destruction in the infected organism of the poisonous material produced there. 5. By such a change of the central organs, or of the living cells, that they obtain a higher degree of resisting power against the nerve toxines and cell toxines pro- duced by the bacteria. Table III. Conditions Necessary for the Pro- duction of Immunity.-A. A passive state of the organ- ism (the exhaustion theory, and the theory of non- favorable culture media). B. A functional condition of the organism, divided into : 1, A function of the living condition of the organism (the contest theory); 2, a function of the dead condition of the organism. These three tables give a very accurate view of the various theories upon which experimental work has been based in order to secure immunity from, or cure of, infectious diseases. Of all these the one which has been especially applied to the study of diphtheria, is that of Behring, marked (c) in Table I., and is included in what Behring has called " blood-serum therapeutics." The history of the investigations which have been made in the domain of diphtheria is exceedingly interesting. The first paper that appeared on the subject was by Behring and Kitasato, in 1890 (in No. 49 of the Deut. Med. Wochenschriff) ; the second was by the same authors in the same year (No. 50 of the same journal); the third was by Boer (a monograph upon the methods of treating guinea-pigs infected with diphtheria with chemical preparations) ; and the fourth was by Behring and Wer- nicke, in 1892 [Zeitschrift f. Ilyg., 1892, vol. xi.), upon 233 Diphtheria. Diphtheria. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) the immunity and cure of animals affected with diph- theria. The result of all this work is to furnish a prom- ise of something of great value in the future. Certainly great results have been obtained by similar work in the domain of tetanus in man, and the outlook for something really satisfactory in the domain of diphtheria is very promising. The theory acted upon in the production of immunity against diphtheria may be best explained as follows : It is a long time since the theory that immunity might be due to the presence of a deterrent substance in the blood entered the mind of scientific men,-this substance being something that would prevent the growth of the invad- ing bacteria or prevent the development of their toxic poison ; but it has been an exceedingly difficult matter to secure evidence upon the point. The first experimental researches were negative (those of Grawitz and Gamaleia), but in 1884 Grohmann showed that fresh serum exerted an attenuating influence upon the bacilli of symptomatic anthrax. Fodor found that fresh blood destroyed them, while Nuttall established the fact that organic fluids, blood-serum, aqueous humor, pericardial fluid, etc., really possessed the power of de- stroying bacteria, and that this germicidal action was taken away by raising these fluids to a temperature of about 60° C. Buchner showed that this power rested solely in the serum, and that the breaking up or mixing in of the blood-corpuscles masked or diminished its ac- tivity. He also showed that repeated freezing divided the serum into layers, of which the lowest was the most active in destroying bacteria, and that this power of the serum is destroyed if it be diluted with distilled water, or if it be dialyzed against it. After Buchner, the most important work has been done by Ogata and lasuhara, and Behring and Kitasato, in showing the great influence of the fluid portion of the animal tissues in the acquisi- tion of immunity. According to the work of these authors, immunity is due to the action of albuminoid substances, called by Hankin defensive proteids, which have the power of destroying pathogenic bacteria, of at- tenuating them, and of destroying their toxic products. It is necessary that one should have a clear idea in re- gard to these defensive proteids, if one is to understand what extreme importance is to be attached to their dis- covery, and to the prosecution of researches upon them. First, in regard to germicidal proteids. Certain ani- mals have in their blood, and the other fluids of the body, substances endowed with a very considerable germicidal power, and an example that has been better studied than some others is found in the blood of the white rat. These animals are refractory to inoculation with an- thrax, and the reason for this immunity to so virulent a disease has been found by Behring to exist in the fact that the animal's blood-serum destroys the bacteria. By comparative tests it was shown that two and one-half centimetres of rat serum possessed the same germicidal action as would the same quantity of corrosive sublimate in the strength of one to one thousand, or of carbolic acid (one to fifty). To appreciate this fact it is necessary to consider another quality of chemical germicides, viz., the toxic action of these materials upon the animal. Thus, for example, it appears that both the sublimate and the carbolic acid will kill the animal in a dose five to seven times smaller than is necessary to secure their germicidal action, and that they cannot therefore be thought of for internal antiseptics, while the germicidal proteids are present in quantity sufficient for the perfect accomplishment of such germicidal action in the serum of the perfectly healthy white rat. This is the most strik- ing and valuable property of these defensive proteids, viz., that they are the least toxic of all germicides known, and this leads up to the more important fact that it seems possible to employ them in active measures for the treatment and cure of infectious disease. Many points, of course, still remain to be cleared up, as, for instance, such an apparent contradiction as that the serum germicidal power does not, in all cases, corre- spond with the natural immunity of the animal furnish- ing the serum ; but thus far investigation has only served to show that these apparent discrepancies can be easily explained. The second class of these proteids is made up of the attenuating varieties, the existence of which was first suggested by the fact that the bacteria of symptomatic anthrax were attenuated in virulence when injected into animals refractory to the disease, and yet at the same time their vitality was not interfered with. It is to the work of Ogata and lasuhara that we owe the first expe- rimental determination that this attenuating property re- sided in the serum of the animals experimented upon, and not elsewhere. Such an attenuating action upon bacteria would ex- plain very naturally the immunity of the animal in whose blood it was found, and the authors, by further experiments, showed that this property continued to ex- ist in the serum after its removal from the body of the animal in which it was found, and could be made to serve as a retarding influence, and even as a curative agent, in animals inoculated with true anthrax. The ex- istence of these attenuating proteids has been confirmed by other observers in the case of anthrax and in other diseases, and the establishment of the fact would be exceedingly important if this were all ; but further re- search has shown the existence of a third class of these proteids. We know now that there are not only germicidal and attenuating, but also antitoxic proteids, and their discov- ery is the most important of all. The former classes act directly upon the bacteria themselves, either by actually destroying them, or by so limiting their development in the animal's body that their growth becomes a matter of slight moment as affecting the health of the individual attacked. The first announcement of results in this direction was made by Behring and Kitasato in 1890 (see the quotations above). They had found that the blood of rabbits pro- tected against tetanus had the power of destroying the toxic alkaloid of tetanus (tetanin) in the lifetime of the animal attacked. They also found that it was not only possible to protect animals against an inoculation of the tetanus bacilli, but also to cure it after this inoculation had taken place, and even after the appearance of the symptoms of the disease. The importance of such results, especially as they have been repeatedly verified by independent observers, can hardly be over-estimated. Almost in the same week with the announcement of the discovery made by Behr- ing and Kitasato with reference to tetanus came those of Fraenkel and Brieger in regard to diphtheria ; and it is with regard to these latter, of course, that we are especially interested. So far as tetanus is concerned, if later reports can be trusted, the method of cure has been successfully applied in a number of-cases which, as we have every rea- son to believe, would have terminated fatally, as such cases almost invariably do. Results similar to these have been obtained in animals in the case of some of the sup- purative bacteria, in anthrax and in erysipelas, and the variety and extent to which experiments must go in the elucidation of the points brought up by these new facts, are almost unlimited. As will be readily seen, we have at last caught sight of materials effective for the destruction of the bacteria, or their toxic products-materials that at the same time will leave the animal tissues unharmed after their applica- tion. Hitherto we have been able to employ for such a purpose only materials that were in themselves destruc- tive to the vital organism, and the remedy, when effec- tively employed, has been worse than the disease. The Toxalbumins of the Diphtheria Bacillus.- The toxalbumins of the diphtheria bacillus are at present attracting so much attention that the following account of the work of Wassermann and Proskauer (Dent. Med. Woch., April 23, 1891) in extracting them can scarcely fail to be of interest. Employing methods very similar to those of Brieger and Fraenkel (detailed in the Berliner klin. Woch., 1890, Nos. 11 and 12) they attempted to follow out the same line of investigation. For their observations they used 234 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Diphtheria. Diphtheria. a culture of the bacillus of diphtheria in bouillon'which was about three weeks old and whose activity against animals was proved by experiments. This bouillon cult- ure was made in the usual meat-water-peptone bouillon, with one per cent, of peptone and one-half per cent, of common salt. Its virulence was tested upon animals. One-tenth of a cubic centimetre of it injected into the animal was found to kill guinea-pigs after from twenty- four to thirty-six hours. Of such a bouillon culture three litres were made bacteria-free by passing through Kitasato's filter. That the filtrate was free from bac- teria was proved by a double method of testing it: by cultivation upon nutrient agar, and further by leaving it in the brooding-oven for from twenty-four to forty-eight hours. After it was shown to be sterile by these tests, it was reduced to one-third of its'bulk in a vacuum exsicca- tor at a temperature of from 27° to 30° C., having been made strongly acid with acetic acid. Absolute alcohol was added in the proportion of eight to ten times its mass, and the resulting precipitate was filtered after standing for twenty-four hours. This precipitate was then dis- solved in water and further treated, and the operation was repeated as often as was found necessary to render the watery solution perfectly clear. Then it was three times dialyzed for twenty-four hours, and after dialyzing it was further treated with alcohol, and the precipitate col- lected and dried in vacuo at 37° C. The observation was made that after leaving the precipi- tate in solution for one or two days in alcohol it became manifestly smaller in bulk. If this were then filtered and the filtrate again treated with absolute alcohol, another precipitate was obtained, differing markedly from the first. It thus appeared clear that a part of the precipitate was more soluble in alcohol than the other, and as the alcohol was made more dilute it passed again into solu- tion. This observation coincided with that of Brieger and Fraenkel, who, in their solutions, were able to isolate two bodies possessed of different solubility in dilute and absolute alcohol. It was further observed that both bodies dialyzed very slowly ; that they both gave the albumin reaction, and that only one of them was possessed of pathogenic prop- erties. After a large mass of this bacteria-free material had been obtained, it was treated in vacuo at between 27° and 30° C., and was reduced to a tenth of its volume. Then at a low temperature it was dialyzed against dis- tilled water for twenty-four hours three times, in order to get rid of the peptone and globuline. The authors were able to observe in neither of these-the peptone or the globuline-any pathogenic or poisonous properties. The peptone was obtained in fair quantity, but the globuline in very small quantity. The fluid obtained in the dialyzer was filtered clear, and only when it was ob- tained clear were the next procedures carried on. Seven times its volume of from sixty to seventy per cent, alco- hol was added to the clear filtrate (freed of globuline and of the greater part of the peptone), the alcohol having previously been made acid with a drop or two of acetic acid. The precipitate thus obtained remained in alcohol for twenty-four hours, after having been allowed to settle for some time. It was then filtered and the dilute alco- hol-the filtrate-was again treated with alcohol, and as often as a new precipitate was obtained it was again col- lected on the filter. Both substances were treated with water and the solution thus obtained again precipitated and treated as before. In order to free it as far as pos- sible from peptone, it was treated with twice its bulk of a saturated solution of sulphate of ammonia, and the precipitate resulting from this, which contained the al- bumoses, was again brought into solution with distilled water, then passed through the dialyzer in flowing water until the reaction with sulphuric acid and ammonia dis- appeared, and finally was brought into solution with as small a quantity of absolute alcohol as was possible. This procedure-dissolving in water and precipitating with alcohol-was repeated until the solution became as perfectly clear as water. When this point was reached the precipitate was collected from the filter and dried in vacuo at 37° C. (SUPPLEMENT.) In this way were obtained from cultures of diphtheria two albuminoid substances which resembled very closely those of Brieger and Fraenkel. The body precipitated by dilute alcohol was a finely granular white powder, while that thrown down by absolute alcohol, after drying, ap- peared in the form of a yellowish brown, crystalline body. Both dissolved very easily in water, and these solutions gave simply albuminoid reactions. These bodies were broken up by concentrated mineral acids, by strong metallic salts, and by acetic acid, but this was not effected by nitric acid, by bisulphate of soda, or by warming the solution. They also gave the typical color reaction for albuminoid bodies. The elementary analysis of the white toxic body gave the following from its ash : Carbon, 44.82 per cent. ; hydrogen, 6.91 percent. ; nitrogen, 16.18 per cent. ; sul- phur, 1.69 per cent. ; oxygen, 30.40 percent. The same analysis obtained by Brieger and Fraenkel, fortheir material gave : Carbon, 45.35 per cent. ; hydro- gen, 7.13 per cent. ; nitrogen, 16.33 per cent. ; sulphur, 1.39 per cent.; oxygen, 29.81 per cent. The difference between the two analyses can be easily accounted for by the difficulty of the task. It was found that only the pure white, easily precipitated material had any toxic effect upon animals, while the other, even in considerable mass, could be injected without any un- fortunate results following its use. Investigations of this kind, as well as those of Behring, give promise of future results that are almost boundless in their extent and importance. The pity of it all lies in the fact that we in this country must stand idly by, power- less to help in pushing on these investigations, because of the lack of support for them in the way of money and institutions endowed for such researches. Harold C. Ernst. DIPHTHERIA IN CHILDREN. Membranous forma- tion occurs very rarely in children under one year, but it has been seen even in the newly born. Most cases occur between the ages of three and fifteen. The clinical diag- nosis of diphtheria covers at least two diseases, caused, one by the Klebs-Loeffler bacillus, the other by a strepto- coccus, and according as the disease is the one or the other, the symptoms vary somewhat, and the prognosis differs widely. A mixed infection is, however, not in- frequent. A bacteriological examination is the only means of distinguishing positively between the two. True Diphtheria, Due to the Klebs-Loeffler Bacillus.-The patient presents local and constitutional symptoms, the former the result of the position and ex- tent of the membrane, the latter the result of the absorbed products of the bacilli. Local Symptoms.-The membrane may be visible, or, by reason of its location, invisible. When visible it may be a mere point on one tonsil, or it may cover both ton- sils, the soft palate, uvula, pillars of the fauces, and pharynx. It may extend up through the naso-pharynx and the nose, involve the conjunctivae, and even appear in the ears. It may also cover the inner surfaces of the cheeks and extend out upon the skin. On the other hand, it may be confined to an area out of sight, or it may ex- tend into the larynx, down the trachea and small bronchi, and rarely down the oesophagus. The membrane may be thin, transparent, and like a white veil, or thick and opaque ; and in the latter case it may be yellow, green, gray, or black. It may be firm and closely adherent when young, or loose, shreddy, and soft when old. It may disappear in less than two days, and may last three or four weeks. Usually, however, the membrane begins to separate on the fourth or fifth day, and in about ten days the throat clears and convalescence begins. When the disease affects the neighborhood of the larynx there may be dyspnoea, due to a functional paralysis of the vocal cords, or to actual obstruction by membrane. With the dyspnoea come an altered voice, perhaps aphonia, and a cough. If the obstruction is considerable, cyanosis and retraction of the intercostal, supra-sternal, and supra-cla- vicular spaces are evident. If the naso-pharynx or nose 235 Diphtheria. Diuretics. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) is affected, there may be complete occlusion of either or both nostrils, epistaxis, and there is regularly an acrid, watery, or purulent discharge. Constitutional Symptoms.-The constitutional symp- toms may be almost entirely absent, and on the other hand, when the local signs are slight, prostration may yet be extreme. Initial chilliness, aching of body or limbs, anorexia, and some soreness of the throat, are customary. The temperature may be very slightly raised, normal, or subnormal. Albuminuria, which is present in about half the cases, may begin the first day, and there may rarely follow a severe nephritis with uraemia. Rapid, feeble pulse, emaciation, prostration, and intense pallor are characteristic of toxaemia from absorption of ptomaines, and this toxaemia in a mild form may persist for weeks after the disappearance of the membrane. It is then prob- ably due to continued slow absorption of ptomaines stored near the original site of infection. Paralysis, the result of a multiple neuritis, is frequent, and may come at any time from three days to six weeks after the begin- ning of the disease, but occurs oftenest in the second or third week of convalescence. The parts affected are pri- marily the soft palate and the muscles of accommodation, but all the muscles, even those of respiration and the sphincters, may be involved. The knee-jerk may be absent from the first day of the disease. There may be some slight cervical glandular enlargement, but in such a case there are usually streptococci present with the bacilli. With the mixed infection, too, there may be a broncho-pneumonia, which, like the persistent toxaemia, may kill the patient after the active disease is over. Various skin rashes may appear at the onset or later, and temporarily confuse the diagnosis. Prognosis.-True diphtheria is extremely fatal in chil- dren under two years ; children under one year almost never recover. Death is usually the result of one of the following causes : (1) Laryngeal stenosis ; (2) septic in- fection ; (3) broncho-pneumonia ; (4) diphtheritic paraly- sis ; (5) uraemia. Factors which increase the gravity of the prognosis, in any case, are marked prostration, great extent, thickness, and rapid spread of the membrane, long persistence of the membrane, its presence in the larynx, much albumin in the urine, the supervention of broncho-pneumonia, complications with other diseases, and persistent vomiting, especially if nourishment is taken poorly. On the other hand, a thin, slowly spread- ing membrane is favorable, as is one confined to a small area. Membrane which spreads to the naso- pharynx is unfavorable, but if it is confined to the nose, recovery is to be expected. From paralysis recovery is usual, after a period varying from one week to six months. PSEUDO-DIBIITIIERIA, THE RESULT OF INFECTION BY Streptococci.-As in the true diphtheria, the symp- toms are local, due to the membrane, and constitutional, due to the penetration into the tissues of the cocci and to the entrance into the circulation of their poisonous products. Local Symptoms.-The membrane cannot be positively distinguished in site or appearance from that of true diphtheria, and the symptoms due to its presence are the same. Constitutional Symptoms.-There is frequently consid- erable temperature-103' to 104° F.-without any corre- sponding prostration. Glandular swelling is usually quite marked. Frequently, too, a broncho-pneumonia develops, sometimes late, but usually in the first week ; if this does not happen, however, convalescence is ex- tremely rapid. Prognosis.-The prognosis is much better than in the true form, the mortality being about three per cent, in un- complicated cases of the pseudo-diphtheria, as compared with a mortality of about thirty per cent, in the real diphtheria. Factors which are unfavorable are : (1) Complication with other infectious disease ; (2) bron- cho-pneumonia ; and (3) laryngeal stenosis. In the last case, if intubation or tracheotomy be performed, the prognosis for recovery is good. Treatment.-Prophylactic treatment should be advised for children, especially those in institutions. Such con- sists in reduction of hypertrophied tonsils, care of the teeth, and the use of antiseptic gargles. All, old or young, exposed to cases showing membrane in the throat, should use frequently some antiseptic gargle. Isolation of the patient should be absolute in the true form, but need not be so rigid in the pseudo-diphtheria. In the latter, however, contact with children should be carefully avoided. It is as yet uncertain whether bacilli are, or are not, found in the throat after the membrane has disappeared. It is wise, therefore, to continue such isolation for a week after the membrane has gone, and to continue antiseptic gargles during that time. Local Treatment.-Any injury to the mucous mem- brane allows the membrane to spread ; therefore all rough applications and swabbing are to be avoided. Sprays are not notably efficient; but of the beneficial effect of steam in laryngeal cases, before and after opera- tion, there is no doubt. The steam from kettle, steam- pipe, or other source, should be delivered close to the face of the patient. Fumigation by calomel is certainly successful in coat- ing the larynx, trachea, and larger bronchi with the powder, and with this substance there is, in addition to the local effect, a constitutional action. The method is to construct a close tent of sheets over the bed, and then to volatilize within the tent, on a metal plate, over an alcohol or oil flame, twenty grains of calomel. The tent should be kept closed except for frequent inspection of the patient, till the odor of the calomel has nearly dis- appeared, i.e., usually about half an hour. This fumi- gation should be repeated at hourly intervals till the constitutional effect is reached, and this means hourly fumigations for at least twenty-four, and sometimes for forty-eight hours. Irrigation with an antiseptic solution is probably the most efficient local treatment. The solution can be di- rected by an ounce-syringe fitted with a short, soft rubber cap over the point, so as not to hurt the tissues touched, and the solution should be forced up one nostril and made to return by the mouth or other nostril. To do this it may be necessary to push the piston home with consider- able force, but the nozzle should not plug the nostril so tightly that, if the obstruction is considerable, fluid may not pass back out around the nozzle. Perhaps the best solution for this purpose is corrosive sublimate in strength from Tiuro to roiw Some will be swallowed accident- ally, but not enough to be injurious. The mouth is to be irrigated in every case, the nose when there is any discharge. The irrigation should be made every half- hour or hour. It is very regularly the rule that after the irrigations are begun the membrane stops spreading. Constitutional Treatment.-The three drugs most to be relied on are alcohol, mercury, and iron. Alcohol is best given in the form of brandy or whiskey, and the dose should be at one-hour or at most two-hour intervals. Its use should be begun early, and in grave cases pushed to the utmost short of narcotism. Nearly every case at all ill, will take three ounces in twenty-four hours, and a child, six years old, may need ten or twelve ounces in the same time. Mercury is given internally in the form of the bichlo- ride, one-sixtieth of a grain every hour for children under five years, and one-fortieth of a grain for those over five. Iron, as the tincture of the chloride, in glycerine, to prolong the local effect, should be given frequently in small doses, two to five minims every half-hour, for a child six years old. Food, in easily digestible form, should be given in as large quantities and as frequently as the patient will take and digest it. Treatment of Laryngeal Stenosis.-In the beginning, steam inhalations and emesis are advisable. If operation becomes necessary, it is to be remembered that mortality is less in early operations. If the consent of the parents is obtained for either intubation or tracheotomy, the choice depends mainly on : 1, The experience of the phy- sician ; 2, the age of the patient. A physician without 236 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Diphtheria. Diuretics. considerable practice will usually do better with tracheo- tomy, and it is wise to be prepared always, at an intuba- tion, to do an immediate tracheotomy if the first opera- tion fails. Intubation is to be preferred if the patient is less than two years old. John II. Huddleston. DIURETICS. Two diuretics of striking power have lately come into use. One of them, calomel, was for- merly much used in combination with squill and digi- talis ; the other, sodio-theobromine salicylate, or diu- retin, was introduced in 1890. Calomel.-The diuretic power of calomel was dis- covered by Jendrassik 1 and announced by him in 1886. It had, however, been observed long before that calomel, in cases of dropsy, sometimes caused very profuse diu- resis ; but this was forgotten, and the writers on thera- peutics in the last two decades either entirely ignored the use of calomel as a diuretic, or recommended it only as an adjuvant to squill and digitalis. Jendrassik accidentally, in a case of dropsy, with syphilis, found that calomel acted as a powerful diuretic. He then tried it in other cases of dropsy. In cardiac dropsy its use was almost uniformly followed by profuse diuresis, but in renal dropsy, in ascites, and in pleuritic effusion, no very decided effect resulted, and in most cases none at all. Jendrassik's success led others to try calomel. On the whole, their reports show that in car- diac dropsy calomel produces marked diuresis, but acts feebly or fails to act in other forms, but especially in renal dropsy. All observers found that the polyuria does not begin on the first day of administration, but usually on the sec- ond, the third, the fourth, or the fifth day. The quan- tity of urine then augments very rapidly, is most profuse on the second day, and subsequently slowly diminishes. As a rule, the polyuria continues until the symptoms of dropsy have completely disappeared. In cases of exten- sive dropsy the maximum quantity of urine voided in one day was twenty pints. As the quantity of calomel necessary to produce such profuse diuresis is quite large, the ordinary effects of large doses supervene, unless prevented by prophylactic measures. Diarrhoea nearly always results. If not more than two or three stools occur daily, diuresis may still take place ; but if the stools are very numerous no in- crease of the quantity of urine will result, doubtless be- cause the calomel is expelled from the intestines before absorption can take place. To prevent such rapid dis- charge of the medicine, opium in small doses should be combined with it. ' Some of the general symptoms of acute mercurialism usually become manifest-a disagreeable metallic taste, some soreness of the gums, increased secretion of saliva, •and offensiveness of the breath. Some patients, how- ever, have taken calomel in moderate doses for ten or twelve days without any of these effects. In most cases, if the calomel be long continued, the effects on the mouth become very severe, and some cases have been re- ported in which extensive ulceration and even gangrene resulted. Hence no more calomel should be employed than is necessary to cause decided diuresis. To prevent the effects upon the mouth, prophylactics should be used from the beginning of the treatment. Generally chlorate of potassium is preferred, the mouth being rinsed every two or three hours with a three or four per cent, solution of the salt. Jendrassik supposes that an acid reaction in the mouth, especially in the vicinity of decaying teeth, greatly favors stomatitis, and he has used with success a three or four per cent, solution of carbonate of sodium. Tincture of myrrh, tincture of krameria, and permanga- nate of potassium have also been used as preventives. If, notwithstanding the employment of these means, stomatitis should take place, the use of calomel must be discontinued. But it is not likely to occur, or only very mildly, if the calomel be given in the cautious manner lately recommended by Jendrassik.2 Calomel as a diuretic is indicated in cardiac dropsy when other appropriate means, such as digitalis, stro- phanthus, caffeine, diuretin, etc., fail to give relief. The presence of albumin in the urine does not interfere with the action of calomel, and generally the urine, if it contain albumin, will become normal after the subsidence of the dropsy. It should be recollected that the mere re- moval of the dropsy does not restore compensation in cases of cardiac insufficiency, and that, after the diuretic has proved successful, it will be necessary to administer remedies to improve the heart's action. Should these not succeed and the dropsy return, calomel should again be used, and, if necessary, it may be employed as often as the dropsy becomes extensive. Its employment at in- tervals of some weeks becomes necessary in some cases of heart disease in which the rupture of compensation can- not be rectified. If the calomel be carefully used no harm will result, and the patient may be made comfort- able and life be prolonged for some years. Jendrassik states that he treated a patient whose life had been pro- longed for five years ; each year it was necessary to give calomel from fifteen to twenty times to remove the drop- sical symptoms. In the intervening periods the patient was able to lead a tolerably active life. Another patient that >had marked insufficiency of the heart had been treated seven times since 1886. On each occasion he came to the hospital wTith grave symptoms-enormous anasarca and ascites, with severe dyspnoea and sleepless- ness. His urine always contained albumin. Once the ascites was so extreme that, to save life, it was necessary to tap the abdomen. In this case the calomel always acted well and enabled the patient to return to active life. Jordan has recorded a case in which twenty-three suc- cessful trials with calomel were made, and during the treatment the patient took, without perceptible injury, 107.5 grammes (nearly 3| ounces) of calomel. The dose of calomel in most of the reported clinical experiments was three grains, given from three to five times daily for several days, usually together with one- sixth grain of opium to prevent catharsis. Lately Jen- drassik. has stated, after further experience, that one and a half grain is the best single dose, and that this should be given eight or ten times within a day. After the administration for one day the polyuria, he says, is just as profuse on the third or fourth, day as if the medicine had been given on the intermediate days, and that it is certainly erroneous to persist in the administration of calomel after the urine has begun to increase in quan- tity. Jendrassik holds that the diuretic effect is caused by increased resorption of the dropsical fluid by the blood. In the cases in which calomel acted very decidedly no changes in the circulation took place that would account for the polyuria ; hence it does not act like digitalis and some other medicines that increase blood-pressure. In experiments Jendrassik found that a very dilute solution of chloride of sodium diffused into a solution of albumi- nate of oxide of mercury, placed in a suitable dialyser, in much greater quantity in a given time than into a simple solution of albumin of the same strength. As calomel after absorption doubtless circulates in the blood as an albuminate, Jendrassik supposes that it causes the dropsical fluid to pass by endosmosis into the inspissated blood in greatly increased quantity, thus rendering the blood more watery. The excess of water in the blood, as soon as it reaches the kidneys, is rapidly excreted. Experiments made by Benczur and Csatary3 support this view. They determined the quantity of haemoglo- bin in the blood of patients for several days before and during the administration of diuretics. From the quan- tity of haemoglobin found they calculated the degree of concentration of the blood. In a case of dropsy they gave forty drops of tincture of strophanthus for three days. The quantity of urine voided in the three days was, respectively, 900, 1,900, and 3,200 c.c. On these days 100 c.c. of blood contained 7.851, 8.659, and 8.730 grammes of haemoglobin. This shows, say Benczur and Csatary, that the diuresis produced by strophanthus is associated with a simultaneous inspissation - of the blood. In a case of severe cardiac dropsy they gave 0.2 of calomel six times daily for two days. The quantity of urine in these two days, and in the following four 237 Diuretics. Dyspepsia, Nervous. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) days, was as follows : 950, 1,000, 3,900, 4,500, 2,400, and 1,000 c.c. The quantity of haemoglobin contained in 100 c.c. of blood in the same days was as follows : 7.19, 5.32, 7.93. 7.85, 9.31, and 8.32. These figures seem to show that when calomel produces free diuresis the blood at first becomes hydraemic, and that inspissation takes place only during the progress of the polyuria. Hence Benczur and Csatary contend that calomel increases re- sorption, thus rendering the blood very watery, and that the kidneys simply remove the excess of water in the blood. Stintzing and some others hold that calomel acts di- rectly upon the kidneys, because they observed an increase of the urine of some patients not affected with dropsy. Some clinicians concluded that it acts upon the epithelium of the kidneys because it manifests no diuretic action in the dropsy of chronic parenchymatous nephritis. Recently Cohnstein 4 experimented upon healthy rab- bits to determine the mode of action of calomel, without, however, succeeding in solving the question. He used a solution of calomel in hypophosphite of sodium. When this was injected into the subcutaneous tissue or into the jugular vein a decided increase of diuresis resulted, showing conclusively that calomel acts as a diuretic in healthy rabbits. When before the injection he had placed the animals under the influence of chloral in order to depress the vaso-motor centre, no increase of the urine took place ; so, also, no augmentation of the urine re- sulted from one of the kidneys when, before the injec- tion, its nerves had been severed. But in both series of experiments, after calomel had failed, the administration of caffeine decidedly increased the quantity of urine. From these experiments Cohnstein concluded that some change in the circulation is a necessary condition of the diuresis, and that calomel does not act by stimulating the epithelium of the kidneys. In some of his experi- ments Cohnstein determined the blood-pressure after small doses of calomel, and found that simultaneously with the increase of diuresis an augmentation of arterial pressure took place, but this was slight and evanescent, and could not have caused the heightened secretion of urine. Diuretin.-The term diuretin is applied to a prepa- ration of theobromine, as a convenient substitute for the unwieldy chemical name sodio-theobromine salicylate. As this chemical name indicates, diuretin is a double compound of sodium theobromine, Ci^Na^Os, and so- dium salicylate, C6H4(OH)COONa. Diuretin is a white, odorless powder, having a bitter taste. It dissolves in less than its weight of water when warmed, and remains in solution on cooling. It is a very unstable compound, and when exposed to the air gradu- ally decomposes, the theobromine separating from the sodium. On account of this instability aqueous solu- tions undergo change in a few days, and, when adminis- tered soon after meals, become decomposed by the acid of the gastric juice. W. von Schroeder5 discovered, in experiments upon rabbits, that theobromine greatly increases the secretion of urine by acting directly upon the epithelium of the kid- neys, and that it has no action on the vaso-motor centre, in this respect differing from caffeine. As the human kidneys are affected in the same manner as the kidneys of the rabbit by caffeine, he supposed that theobromine would in man also produce a very decided diuretic effect, and, on account of its slight action on the nerve-cen- tres, in many cases be preferable to caffeine. Chr. Gram,6 at the suggestion of von Schroeder, tried free theobromine in cases of dropsy. It acted effectively as a diuretic, but frequently caused vomiting, and was inconstant in its diuretic action, owing to its slow and uncertain absorption. After unsuccessful trials of vari- ous preparations of theobromine, he finally found one that is easily absorbed, namely, diuretin. Gram administered diuretin in cases of dropsy in which other diuretics, digitalis and strophanthus, had failed. He states that he purposely selected cases in which as a rule we are utterly helpless. Diuretin always increased the quantity of urine, except in those cases in which the renal epithelium was so degenerated that no action could be expected. In some cases a relative cure resulted, or at least decided improvement, a result that may be called a good one when it is considered that in severe organic heart disease and in chronic nephritis only a relative cure can be attained. Gram says that the therapeutic results of his experiments were not very remarkable, but yet, as the patients were in such a desolate state that other diuretics (cardiac tonics) could not act efficiently, these results appear to have been very favorable. The usual dose of diuretin was 1.0 (fifteen grains), which was given five or six times daily. No changes in the circulation took place, and hence the increase in diuresis resulted from a direct action upon the kidneys. The remedy never produced disagreeable incidental effects, and only once, in a very cachectic patient, did it cause slight giddiness. A. Hoffmann 7 tried diuretin in numerous cases. In four cases of cardiac dropsy he employed it on fourteen dif- ferent occasions, and always obtained good results. Usu- ally diuretin was not given until digitalis had failed to act. The polyuria began on the first day of administra- tion, augmented gradually, and reached the maximum in from two to six days. It rapidly diminished when the diuretin was withdrawn, or when the dropsy had sub- sided. Sometimes the diuretic action was delayed for several days, perhaps on account of slow absorption. The quantity of urine voided depended upon the extent of the dropsy ; when this was very decided the quantity at the maximum amounted to five or six litres a day. Hoffmann agrees with von Schroeder that diuretin acts directly upon the kidneys, but he supposes that it also influences the heart. He observed that the pulse often became regular, stronger, and slower ; that dyspnoea was relieved before the disappearance of the dropsy ; and that quiet sleep ensued without the use of hypnotics. No incidental effects took place, except some vomiting in a few cases; but this soon ceased. In several cases a light, painless diarrhoea occurred, but stopped although the medicine was continued. Excitement, such as some- times occurs from caffeine, was never observed. Hoff- mann concluded that diuretin is a powerful diuretic in general dropsy, but has little effect upon inflammatory exudations, such as that of pleuritis, and still less upon ascites from portal obstruction. Dr. Koritschoner8 employed diuretin in thirty-eight cases of severe dropsy of cardiac, renal, and hepatic ori- gin. In twenty-three cases the effect was better than from other diuretics, and in eight of them very remark- able, the quantity of urine having increased to ten or twelve litres. In ten cases the effect was moderate, but was not excelled or equalled by any other diuretic. Only in one case was complete failure observed. On the aver- age the action of diuretin was best in cardiac dropsy, next in portal obstruction, and least in nephritis. But this pertains only to the absolute action ; relatively to other diuretics the action in chronic Bright's disease was very satisfactory. Koritschoner supposes that diuretin acts directly upon the kidneys, as he observed no influ- ence on the heart. He knows of no contraindications to its use. Even when employed for a long time it proved innocuous. He began with 4.0 (one drachm) daily, and increased by one gramme daily until the quantity of urine, compared with the ingested fluid and the subsi- dence of the dropsy, gave a satisfactory result. In sixty per cent, of the cases 5.0 daily sufficed; in thirty per cent., 6.0 daily ; and in ten per cent., larger doses up to 10.0. The medicine was given in solution, made with hot water, in tablespoonful doses, at intervals of one or two hours, beginning three hours after the principal meal. R. Demme 9 tried diuretin with good results in dropsy occurring in children. The dropsy of scarlatinous ne- phritis seemed, after the first stage of the nephritis had passed, to be removed more rapidly by diuretin than by all other diuretics. Anasarca and effusions in the serous cavities resulting from mitralinsufficiency subsided, after the valvular disease had been compensated by digitalis, very speedily when diuretin was given. The dose for children from two to five years old was 0.5 to 1.5, and from six to ten years old, 1.5 to 3.0 daily. Diuretin 238 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Diuretics. Dyspepsia, Nervous. should not be given to infants under one year, as in them it easily causes irritation of the stomach and intestines. Von Schroeder states10 that some preparations of diuretin found in commerce contain only from thirty to thirty-eight per cent, of theobromine, as found in the analyses made by Vulpius. Knoll's preparation was found to contain forty-eight per cent., and hence should be preferred by the practitioner. Von Schroeder recom- mends the following formula : I). Diuretini (Knoll) 5.0-7.0 Aq. destill.... 90.0 Aq. menth. pip 100.0 Syr. simpl 10.0 M. S.: One tablespoonful every twro or three hours. Samuel Nickles. 1 E. Jendrassik : Deutsch. Archiv f. klin. Medicin, Bd. xxxviii., p. 499. 2E. Jendrassik : Arch. f. kl. Med., xlvii., p. 226. 3Benczur and Csatary : Arch. f. kl. Med., xlvi., p. 478. 4 W. Cohnstein : Arch. f. exp. Path. u. Pharm., xxx., p. 126. 6 Von Schroeder : Arch. f. exp. Path. u. Pharm., xxiv., p. 102. * Chr. Gram : Ther. Monatssh., 1890, p. 10. 7 A. Hoffmann: Arch. f. exp. Path. u. Pharm., xxviii., p. 1. 8 Dr. Koritschoner : Ther. Monatssh., 1892, p. 559. ' R. Demme : Ther. Monatssh., 1892, p. 96. 10 W. von Schroeder: Ther. Monatssh., 1890, p. 374. DIURETIN. This name was given by Dr. Christian Gram, of Copenhagen, to the salicylate of theobromine and sodium which he introduced as a substitute for caf- feine. Professor Schroeder, of Strasbourg, had experi- mented with the alkaloid theobromine, and had reported upon its important diuretic properties at the meeting of the German Medical Congress in 1889. He had found that caffeine in small doses often failed to produce diuresis, and where the vascular tension of the kidneys was in- creased, the flow of urine sometimes diminished on ac- count of the increased blood-pressure produced by the caffeine. Large doses overcame this effect, but they were liable to cause nervousness and insomnia, and other dis- tressing symptoms. Theobromine he found to be an equally efficient diuretic without producing any nervous symptoms or affecting the blood-pressure ; chemically, it differed from caffeine by containing one equivalent less of methyl, it being the dimethyl-xanthine and caffeine the trimethyl-xanthine. The difficulty in using the alka- loid was its insolubility, it requiring 1,600 parts of water for its solution. At his suggestion Dr. Gram instituted a series of experiments, and succeeded in producing a soluble salt by combining it with salicylate of sodium. It is said to be prepared by dissolving one molecule (180) of theobromine in one molecule (40) of soda hydrate, and adding to the solution one molecule (160) of salicy- late of sodium ; when evaporated to dryness it should yield 362 parts of the double salt, which theoretically contains 49.7 per cent, of theobromine and 38.1 per cent, of salicylic acid. It is a white powder with a slightly bitter and disagreeable taste, very soluble ; by the aid of heat it dissolves in less than half its weight of water, and no precipitation occurs upon cooling. Its solution is very unstable and rapidly decomposes. It burns with- out leaving any residue. To estimate the amount of the alkaloid an aqueous solution is acidified, then made alkaline with ammonia, and the precipitated theobromine collected on a filter, washed, and dried. The amount of salicylic acid may be determined by treating the filtrate and ■washings with ether, separating the ethereal solution and evaporating. Theobromine exerts its diuretic properties by its direct action on the secreting tissue of the kidneys. It acts promptly and energetically, and its effect is maintained for a day or two after the cessation of the drug. Its ac- tion is not cumulative. The solids as well as the fluid are increased ; there is no marked change in the blood- pressure, but the heart becomes slower, stronger, and less irregular. An improvement in the general condition of the patient is also experienced. It does not produce any excitement nor influence the nervous system unfavora- bly, nor does it derange the digestive organs. Reports of its prolonged use, however, show that it may be accom- panied by diarrhoea and other signs of intestinal irrita- tion. In all forms of dropsy due to renal disease its ac- tion is most efficient; there is no irritant effect on the secreting cells, and no unfavorable results follow its use. It is of service in all dropsies accompanying heart-disease, but is said to be of greatest service where there is organic disease and failing compensation. Where digitalis and other cardiac tonics have been used without success, it will generally be found to succeed, by its action on the kid- neys following that of the other forms of diuretics. A combination of digitalis and diuretin will form a very active diuretic mixture in dropsies where the blood-press- ure requires to be raised. It has not been found of so much value where the dropsy arises from inflamed serous membranes, or where the liver is congested. The follow- ing are the conclusions of Dr. Dujardin-Beaumetz : (1) When given in doses of fifteen grains it is a much stronger diuretic than caffeine ; (2) when there is con- siderable cardiac .degeneration it should be used with some caution, especially when there is albuminuria; (3) under its influence the cardiac contractions are scarcely affected ; (4) diuretin rapidly increases the quantity of urine passed, and the diuretic effect lasts twice or three times as long as that produced by caffeine ; (5) the activity does not wear off as the patient becomes accustomed to the drug ; (6) micturition is not rendered difficult or painful ; (7) diuretin has no action on the central nervous system. The dose is from sixty to ninety grains daily. It has been found most active in fifteen-grain doses every two or three hours, in water with some aromatic essence to disguise its bitter taste. Care should be observed in selecting the remedy, on account of its instability. When exposed to the atmosphere it absorbs carbonic acid and separates the alkaloid, which is insoluble. The addition of acids or acid vegetable juice also decomposes the solution by throw- ing down the alkaloid. It has been found a safe remedy for children above one year of age, and has proved of marked benefit in scarlatinal nephritis. At the age of from twro to five years the dose may be from eight to twenty-five grains in the day, and at the age of from six to twelve, from twenty-five to forty-five grains. The to- tal amount for the day may be dissolved in four ounces of water with ten or twelve drops of brandy and a little sugar. It has been given for wreeks without producing any ill effects or lessening its therapeutic action. Beaumont Small. DROITWICH. A watering-place chiefly noted for its brine baths, in Worcestershire, England. Location.-Droitwich is pleasantly situated, about 3| hours by rail from London. The town itself is dull. Its saline waters are among the most powerful known, and are now extensively used in the form of brine baths. Analysis.-It is claimed that the Droitwich brine is stronger than any other European water of similar kind. It is fully ten times as rich in salts as the ocean, and has four times the density of the waters of the Dead Sea. Indications.-Like the famous baths of Kreuznach, the Droitwich brine has been found useful in rheumatic gout, rheumatoid arthritis, muscular rheumatism, in- flammatory exudations and periarticular thickenings, sciatica, neuralgia, nervous debility, pelvic cellulitis, uterine derangements, bronchitis, and various conditions of cachexia. Accommodation.-A large sw'imming-bath has been recently added to the other conveniences of the town. The Royal Brine Baths Hotel, in connection with the above, lias been placed under an experienced man- ager, and the comforts of home are now insured to in- valids and others. It affords warm and comfortable winter quarters. The St. Andrew's Baths is the oldest establishment. Edmund C. Wendt. DYSPEPSIA, NERVOUS. We will give the personal history of aggravated cases of the special form under consideration, which being of extreme gravity-the symptoms of some of them almost unparalleled-and the 239 Dyspepsia, Nervous. Dyspepsia, Nervous. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) treatment being successful, the chief features of the disease will be clearly indicated. One of these resulted in violent temporary insanity, another in threatened softening of the brain, a third in absolute loss of mental control, and others in melancholia, nervous depression, diplopia, etc. ; in all of these cases the trouble being de- pendent solely upon malassimilation of food. Case 1 is that of a young man whose time had been devoted chiefly to literary pursuits. In a personal sketch, which we give briefly in his own words, he states : " My sufferings increased daily ; I often felt that I was dying, while the terrors of death at such moments were intensified a hundred-fold. In the meantime a per- ceptible change was going on in my heart and mind, and friends united in censuring me for my eccentric con- duct. They did not and could not understand that the morbid effects of the disease were slowly but surely gain- ing complete control over my thoughts and feelings, nor that when the functions of the nervous system are per- verted the victim becomes, to a certain extent, an irre- sponsible agent and suffers complete transformation of character. I can truthfully say, from dreadful experi- ence, that there are stages of this disease when the vic- tim, like the drowning man grasping at a straw, will swallow anything in the shape of- anodynes or stimulants for relief. Finding that alcoholic beverages mitigated my sufferings, I used them liberally at times ; but knowing that such excesses must end in insanity or death, and not being able to use spirituous liquors at any time in modera- tion, I determined to discontinue them altogether. But without a stimulant I could not walk fifty yards without being seized with a nervous attack and dizziness. I could attend to no regular business, and had diminished in weight from 135 to 117 pounds." He reported that he suffered severely from vertigo after any exertion, and had constant torpor of the bowels, with inability to sleep at night without recourse to stimulants or anodynes. As the first step an immediate abstinence from tobacco, which he used to excess, was required ; alcohol was al- lowed in moderation, and a hepatic stimulant and alter- ative, consisting of stillingia, belladonna, nux vomica, and physostigma, was prescribed. The improvement was marked and continuous; he now no longer suffers from vertigo, and sleeps without any anodyne. Notwithstanding that some physicians inveigh against the use of lactopeptine, and deny to it the possession of any value whatever, we would say here that for such symptoms, namely, defective or complete loss of appe- tite, indigestion, and deficient activity of the digestive organs-whether in adults or children,-we find no remedy to compare with the following combination, to which we have recourse incessantly : B. Lactopeptine (Am. Pharmacal Co.)... 3 ij. Subnitrate of bismuth 3 ij. Comp, tinct. of gentian | j. Simple syrup § j. Ess. peppermint 3 ij- Water to § iv. M. Dessertspoonful in a wineglass of water before meals. A half grain of strychnia added to the above, when indicated, increases its efficacy.. Case 2. Nervous Dyspepsia, Due to Poor Assimilation in Old Age.-Mrs. B., a lady, aged eighty, had during her whole life been noted for ceaseless industry, physical activity, and mental soundness. She was a highly culti- vated woman, of unusual good sense and excellent judg- ment ; her digestion was always good, with no constipa- tion, no malarial poisoning, nor any other disturbance of the system. She had during the war and of late years been subject to much harassment of mind-with, at times, more or less poor nutrition. The first indication of the approaching attack was a tendency to garrulity, with a certain wilfulness of man- ner. She next exhibited extreme excitement ; and, strange to relate, it was invariably most violent upon awakening in the morning just after sleeping soundly for hours, or at any time after sleeping ; at such times she frequently screamed aloud. Her talk was incessant, co- herent and incoherent, generally of a pleasant character ; in her disordered fancies she would enjoy and describe visions of flowers, of bright parterres, decorated tapes- tries ; she would repeat poetry and long reminiscences of her earlier life, all delivered in pleasant, but in highly figurative language. But at times she was be- yond control, and may be said to have lost her mind, so entirely irresponsible were her actions. Knowing the calming and soothing effect which sleep usually exerts upon violent inebriates with delirium and persons with various neurasthenise, we were forced to the conclusion that she could not stand the depressing effects of sleep, which left her a prey to the uncontrollable excitement and loss of mental balance ; all of these symp- toms depending upon a lack of assimilative power, to- gether with the absence of full and suitable nourishment. All hypnotics were therefore discontinued ; she certainly did not require sedatives, for the compound " bromidia," and others freely used, had failed to give any relief. A complete change in treatment was ordered, as fol- lows: Fellows's syrup of the hypophosphites, C. P., ter indie; spiritus frumenti in substantial amounts,frequent- ly repeated ; beef extract, and other concentrated nour- ishment, with hot coffee upon first awakening. She yielded surprisingly well to these measures, which were kept up without any interruption until complete and en- tire control of herself was obtained. The attacks have returned several times, at long inter- vals, and each time have yielded to the liberal use of stimulants, food, and the syrup of hypophosphites with strychnia ; and the correctness of the diagnosis was abso- lutely proved by the almost immediate relief afforded by the treatment. She lived long afterward-dying at eighty-six,-having been, during these last years, in per- fect health of mind and body. Case 3.-A gentleman in middle age, after having passed through a great affliction, and being extremely imprudent in eating-indulging freely in nuts, raisins, and other indigestible substances in the intervals of his regular meals,-began to suffer from complete loss of ap- petite, and a train of nervous symptoms. He had attacks of dizziness to such a degree that he w'ould have to lie prone upon the floor, or the ground, as the case might be ; he could stand none of the ordinary draughts upon the rea- son or the intelligence, being unable to perform the daily duties of his calling ; he could not write a letter, and feared to walk around the square upon which he lived. This culminated in such a low condition of the nervous system that he was twice prostrated, thought that he was about to die, and once asked a friend " if he did not know better than to look at him-that he could not stand it ; " surpassing in this the weakest and most nervous female. Complete recovery of appetite, health, and strength took place after a month's absence in a Northern city for rest and change of scene, with the prudent use of stimu- lants taken with the most nourishing food, but without any medicines whatever. Case 4.-A gentleman, aged twenty-five, was so much afflicted with dyspepsia and ill-health, after pro- longed confinement to books at school and college, that he repeatedly believed that he was dying, saw visions by night and day, was so timorous and fearful that he would not sit in the open seat of a vehicle without the grasp of some one's hand, neither would he leave a room for fear that he would die before his return. These and other exhibitions of groundless apprehension and timidity were presented by a man who had previ- ously, and has since, given striking instances of his man- liness and courage. Dyspeptic symptoms so marked and violent, some of them approaching closely to those of hysteria, were also complicated with spermatorrhoea caused by ascarides. He became much reduced in flesh and strength, but re- covered perfectly after two operations by Lallemand's porte-caustique, efficiently applied, and some tonic reme- dies. 240 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Dyspepsia, Nervous. Dyspepsia, Nervous. Case 5.-A patient, aged thirty-eight, after about a year of suffering from insomnia, constant constipation, and extreme nervousness, was thought by his friends to have softening of the brain and to be doomed to the lunatic asylum. It was at once apparent that his mind must be set at rest and some hope instilled into him. This was done by assuring him in the most confident manner that there was no serious organic disease present, that his nervous symptoms, being functional and neurotic, could be controlled, and that he would surely recover under judicious management. An occasional mercurial laxative was given, his diges- tive organs were strengthened, and the tonic hepatic stimulant referred to in Case 1 was administered. As a result, his insomnia, general depression, and all fears of hereditary disease disappeared, and he is now in com- plete possession of health and strength. Case 6.-The patient, a gentleman over fifty years of age, was strictly temperate in his habits ; he had never any constitutional, malarial, or other disease, except at an early period, when he suffered from bronchitis, from which he recovered perfectly. He had once also expe- rienced a severe attack of dyspepsia. Double vision, lasting each time from three to six weeks, occurred repeatedly-there being four separate attacks at intervals of months and years,-apparently from digestive de- rangements due to overtasking the organs by too free in- gestion of some special article of food. There was no diarrhoea,- colic, or other disturbance ; no cerebral com- plication whatever, or any of the nervous symptoms characterizing the other cases reported here ; the whole ill effect being a reflex influence upon the muscles of the eyes. Without employing the scientific minuteness of the specialist, we only say that there were no degenera- tive changes of the cerebro-spinal system, no dissemi- nated spinal sclerosis, nor any diplopia such as is some- times seen in locomotor ataxia. Furthermore, there was no inherent paralysis of the ocular muscles, but simply a reflex functional paresis by which the power of ad- justment was lost. But when this occurs, be the cause what it may, then every object is duplicated. The man who walks upon the streets sees four lines of pavements stretching away in the distance instead of two, and the temporary loss of this habitual power of adjustment, which has been unconsciously possessed and exercised by him all his life, suffices to throw every visual object into confusion. Each attack came on gradually, increasing in inten- sity, until each eye acted independently, every object be-, yond near reading distance, at which vision was normal, being seen separately, and one eye had often to be closed to relieve the inconvenience caused by the diplopia. In some of the attacks there was moderate strabismus ; in one it was marked. On the first appearance of the trouble, years ago, the reflex effects upon the eyes seemed to result from weak- ness of the entire system following an attack of bron- chitis. The later attacks occurred in the midst of robust health, being directly connected with the stomach. As in two of these he had suffered from severe lumbago and rheumatism of the muscles of an arm lasting for weeks, it was thought that the condition might be dependent- as has been claimed by some authors-upon a gouty or. rheumatic diathesis. It is susceptible of proof that all the attacks were not complicated by a rheumatic ele- ment. The following prescription completely relieved every attack, when given in repeated doses and persevered with : R. Potassii iodid 3 ij. Tinct. cinchonas comp § j. Aquae ad § iv. M. S. : Dessertspoonful in wineglass of water, t. i. d., between meals. Fellows's syrup of the hypophosphites, one drachm, in water, before meals, was used simultaneously. In two of the attacks when the rheumatism was promi- nent, the wine of colchicum and the tincture of guaiac were added to the above combination. Recovery was always gradual, and double vision for distant objects was always the last symptom to be relieved,-a picture on the wall being seen single, when a distant steeple or star was perceived as two objects far apart. By pressing on the left eye or slightly closing it the double vision could be prevented. Good appetite and general health, save in the attacks complicated by rheumatism, were maintained throughout, and, for the present, recovery is again complete. In our own experience, which embraces the care of hospitals for a very long period, cases of this affection are of extreme rarity. We have personal knowledge of but three. Reference may be made to a paper by Dr. George T. Stevens, of New York, on " Sudden Attacks of Diplopia," in the Annals of Ophthalmology and Otology, Kansas City, 1892. Such examples, which are met, doubtless, by every physician, show what a powerful disturbing influence dys- pepsia can exert upon the mind and body-producing bodily weakness and depression of the general powers ; lessening the energy, and even the inclination and the ca- pacity to will and to act; specially giving rise to unmanly fears, indecision, causeless scruples, and apprehensions of impending death ; and in many cases dizziness is a marked symptom. We believe that in the impaired condition caused by malassimilation, defective quantity and quality, and ir- regularity in the taking of food, and consequent anaemia, by which the blood becomes impaired and the nourish- ment and the integrity of the nerves and the brain fail to be maintained, will be found the true pathology of cases such as these, which give rise to so much loss of time, painful anxiety, and suffering to the patient and to his friends. The recoveries under judicious man- agement, change of air and scene, good nourishment, moderate use of stimulants-if they can be tolerated- strychnia, tonics, etc., support the correctness of this view. It will be noticed that the above cases, marked by ner- vous disturbance, mental excitement or depression, do not include dyspepsias of reflex, or cardiac, or ovarian origin, referred to by Fothergill and others ; nor is there any special implication of the liver or renal organs, no gastric catarrh, pyrosis, biliousness, vomiting of bile, or morbid deposits in excess in the urine, such as urates, phosphates, etc.-which morbid conditions are found so commonly in other types of dyspepsia. We are induced to add a brief notice of another and very common form of dyspepsia, which is in striking contrast with that described above, in cause, nature, symptoms, and treatment. This is the gastro-intestinal type, characterized by acidity, water-brash, fermenta- tion, distention, pain, etc., and which requires a distinct management with drugs quite different from those used in cases where there is simply malassimilation of food followed by marked nervous symptoms. We are indebted to a leading article in the Boston Medical and Surgical Journal, for March 17, 1892, for suggestions as regards the management of such cases as follows: "As this form of dyspepsia (intestinal dyspepsia) is generally predominantly a dyspepsia of starches, there is a leading indication to abstain from amylaceous and sac- charine articles of diet. There should be a maximum of albuminoids-meat, eggs, fish-and a minimum of car- bohydrates and fats. Brilliant results have been attained by a diet of raw meat-six to ten ounces of lean beef or mutton reduced to a pulp and cooked but slightly, if at all ; to be eaten, well-seasoned, with a little bread, but without vegetables. Three slices of underdone roast meat, fresh broiled fish, raw oysters and other shell-fish, soft boiled eggs, boiled ham, together with sour-crout, smoked herring, a little stale cheese, etc., have been recommended, the latter articles being particularly un- likely to undergo putrefactive decomposition. " Chronic indigestion of this type is the result," it is 241 Dyspepsia, Nervous. Ear Diseases. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) added, " of long-continued dietetic errors, and in its treat- ment the dietetic plan marked out above should be ad- hered to as closely as possible. By way of medication intestinal antisepsis is indicated. For this purpose com- binations of chalk, bismuth, magnesia, salol, salicylate of soda and napthol are valuable. The patient may take after each meal a powder consisting of five grains each of prepared chalk, magnesia, and salol, or five grains each of salicylate of bismuth and naphthol; nux vomica and Colombo are also valuable. Diastases often are of service. Either malt or pancreatic diastases may be used. They are to be given during the meal. [They probably act by digesting the starch in the stomach and favoring absorp- tion of the resulting sugar before it reaches the intestine.] Laxatives often prove useful in emptying the bowels of its fermenting contents.'' Certain forms of dyspepsia require acids distinctly in their treatment, but this is beyond the province of this paper. F. Peyre Porcher. EAR DISEASES, NOMENCLATURE AND STATIS- TICS OF. The nomenclature herewith presented is based upon the one prepared and used by the aural sur- geons of the Massachusetts Charitable Eye and Ear Infirmary in Boston. Many changes and a goodly num- ber of additions have been made-some in the interest of a scientific nomenclature, others for statistical utility. On the whole it has suffered by these changes, but they were made necessary by the loose method of recording diseases in the various hospital reports, from which the statistical material for this article was gotten. As all additions are in brackets, the original can be seen practi- cally undisturbed. The statistical portion is based upon a study of 104,- 412 cases of ear disease, taken from the thirty-two an- nual reports of the nineeye and ear hospitals, as indicated in the list given at the end of the article. The different nomenclatures followed in these reports, and their inex- act records of diseases, have added much to the labor of preparing, and have materially interfered with the scien- tific accuracy of, this article. The tables are self-explanatory. Each disease is cred- ited in the first column of figures with the number of cases of such affection found in the grand total of 104,- 412 tabulated cases, while the second column shows the proportionate frequency of the affection in every thou- sand cases of ear disease in general. Where the frequency is less than one in a thousand the fraction expressing this small frequency will be omitted altogether. Total num- ber of cases. Number of times occur- ring in 1,000 cases of ear disease general. i n Brought forward I. Morbi Auris Externa (Cont.) Auricula-cutis:-(Cont.) Eczema squamosum : 369 acutum vel chronicum. Herpes zoster [Impetigo contagiosa] Intertrigo Lupus exulcerans " hypertrophia " vulgaris Fibroma lobulte* Fissura lobulae [Pruritus] Syphilis gummosa " papulosa " pustulosa " squamosa Auricula-perichondrii et card- laginis: Inflainmationes: Htematoma iodiopathicum ... " traumaticum .... Perichondritis Deformitates: [Ectopia] Imperfecta?: Microtia Profusae : Polyotia 1,575 25 2 7 0 1 0 0 9 8 0 0 1 2 48 12 48 30 3 3 8 15 Neoplasmata : Angioma Atheroma Calcificatio Cornu [Cystis] Enchondroma Epithelioma Fibroma Lipoma [Lympho-adenoma] ......... Myxo-fibroma Ossificatio Sarcoma [Trauma] [Ulcus] 107 4 0 0 1 66 2 80 21 3 1 1 0 0 71 12 1 Total Meatus-cutis: Anomalite secretionum : 2,520 Equal to a lit- tle over per cent, of all ear cases. Accumulatio ceruminis Diminutio ceruminis Inflammationes: 16,897 0 159 [Abscessus] Eczema papulosum " pustulosum " rubrum " squamosum " vesiculosum: acutum 183 5 1 2 27 2 vel chronicum .... 741 7 [Furunculus] Granulatio Herpes zoster 1,537 5 1 15 Carried forward 19,399 I. Morbi Auris Extern.e : Auricula,-cutis: Congestiones, activae : Congelatio Total num- ber of cases. Number of times occur- ring in 1,000 cases of ear disease i n general.* 12 6 0 0 0 0 152 53 8 20 70 11 23 4 2 8 1.5 Erythema Passivae : Angioneurosis Cyanosis ex corde " vaso - paralytica.. " ex e nip by se in a pulmonum .... Inflammationes: [Abscessus auricula?] Abscessus lobulae Dermatitis congelationis " erysipelatosa " phlegmonosa " traumatica .... Eczema papulosum " pustulosum " rubrum " vesiculosum Carried forward 369 * The cases of " ear disease in general " here referred to, are those represented by the grand total of 104,412. ♦ See Neoplasmata, farther on. 242 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Dyspepsia, Nervous. Ear Diseases. Total num- b e r of cases. Number of times occur- ring in 1,000 cases of ear disease i n general. Brought forward 19,399 I. Morbi Auris Externa :-{Cont.) Meatus-cutis :-(Cont.) Syphilis; condyloma 0 " gummosa 0 " ulceratio 2 [Otitis externa circumscripta]. 727 7 Otitis externa desquamativa.. 56 " " diphtheritica.. 4 " " diffusa: acuta 1,058 10 chronica.... 266 2 acuta v e 1 chronica.. 880 8 " " erysipelatosa .. 1 " " [granulosa].... 1 " " follicularis .... 200 2 " " [furunculosa].. 78 " " haemorrhagica.. 13 " " parasitica 71 " " syphilitica 9 " " traumatica.... 22 Contractio membranosa: 25 ' ' ossea 3 Corpus adventitium : 675 6 animalis 25 inanimalis 52 Pruritus 57 Trauma: directa 47 indirecta 1 Verruca 3 Neoplasmata : cystis 10 enchondroma 2 epithelioma 3 [polypus] 388 4 sarcoma 0 Deformitates: atresia acquisita 16 " congenita 18 fistula auris congenita 11 Meatus-ossis: Caries 2 Exostosis circumscripta 41 Hyperostosis circumscripta .... 7 Hyperostosis universalis 0 Periostitis 10 Total 24,183 Equal to near- ly 23 per cent, of all ear cases. Total num- b e r of cases. Number of times occur- ring in 1,(00 cases ot disease general. ear in Brought forward 329 II. Morbi Auris Mediae :-(Coni.) Membrana tympani:-(Cont.) Trauma indirecta: ex fracture calvaria?. 4 ex ictu aerio 9 ex vi opposita 3 Tympani, Tuba Eustachii, ei Pot- tionis Mastoidea: Otitis catarrhalis secernens : mucosa acuta 1 serosa acuta J 6,616 62 serosa subacuta 2,246 21 [mucosa chronica] / ex inflam- serosa chronica [ matione. 28,221 266 ex tuba.. 558 5 Otitis catarrhalis adhaesiva : ex secernente 1,230 11 insidiosa : cum morbo labyrinthi 161 1 sine morbo labyrinthe 25 Otitis media acuta simplei 803 8 " [cum ostitide mastoideae]. 24 " [haemorrha- gica] 39 Otitis media suppurativa: acuta : 7,487 71 cum perforatione 2,150 20 sine perforatione 40 [cum ostitide mastoideae] .. 37 [subacuta] ; 1,163 11 chronica : 15,928 150 cum carie mastoidea 98 1 cum carie meatus 13 cum carie ossiculae 4 cum carie tympani 3 cum exostose meatus... . 7 cum granulatione meatus .. 162 2 cum granulatione membra- nae tympani 65 cum granulatione tvmpani. 120 1 cum hyperostose meatus... 0 cum hyperostose universale. 0 cum ostitide mastoidea .. . 251 2 cum periostitide mastoidea. 28 cum perforatione membra- nae flaccidae 103 1 cum perforatione membra- nae tympani 6,323 60 cum polypo tympani " " fibromatosa ... 807 8 0 " " mucoso 0 " " myxomatoso... 2 " " m e m b r a n ae tympani.... 1 Effectus otitidis mediae acutae simplicis : 68 cum perforatione 75 1 cum perforatione conglutina- ta 188 2 [Otitis media syphilitica] 11 [Otitis media traumatica] 8 [Otitis media tuberculosa] .... 6 Surditas senilis 7 Neuroses Auris Media : Sensoriae : Otalgia dentalis 70 " ex anaemia 1 Carried forward 75,464 II. Morbi Auris Medle : Membrane tynpani; Abscessus Total num- b e r of cases. Number of times occur- ring in 1,000 cases of ear disease i n general. 5 17 2 14 1 62 3 5 220 2 Atrophia ... Cystis Myringitis acuta " chronica acuta vel chronica.. haemorrhagica traumatica Trauma directa Carried forward 329 243 Ear Diseases. Ear Operations. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.. Brought forward II. Morbi Auris Mediae (Cont.) Neuroses Auris Medice:-(Cont.) Otalgia ex carie calvariae ' ' ex carie vertebrae.... " ex ictu aerio " ex tumore cerebri.... " perineuritide " ex pressu nervi " hysterica " laryngealis " nasalis " [neuralgica] " pharyngealis Motorise : Contractiones musculorum au- riculae Total nnm- b e r of cases. Number of times occur- ring in 1,000 cases of ear disease i n general. 75,464 0 0 0 0 0 0 3 0 0 1,412 0 0 0 2 0 14 Contractiones musculorum au- riculae tubae Contractiones musculorum au- riculae tympani Vaso-motoriae: Congestio vaso-affecta Total 75,881 Equal to near- ly 73 per cent, of all ear cases. V. [Morbi Mastoide^J : [Abscessus] Total num- b e r of cases. Number of times occur- ring in 1,000 cases of ear disease i n general. 141 4 4 1 1 77 5 133 66 1 1 [Caries].. f [Fistula] Fractura] Herpes] Necrosis] Neoplasmata] [Osteitis] [Periostitis] Total 432 Equal to about '/u °t 1 per cent, of all ear cases. V. Unclassified : Cholesteatoma [Keratosis obturans] [Luxatio mallei] [Presbyacousis] [Surditas artificis lebetum [Surditas totalis congenita' [Surditas totalis acquisita meningitide] [Tinnitus aurium] [Vertigo ab aure Isesa].... Total num- b e r of cases. Number of times occur- ring in 1,000 cases of ear disesse i n general. ex 5 56 1 52 19 15 36 152 2 1 Total 338 Equal to near- ly % of 1 per cent, of all ear cases. II. Morbi Labyrinthi et Acus- tici : Anaemia labyrinthi Total num- b e r of cases. Number of times occur- ring in 1,000 cases of ear disease i n general. 5 Cochlitis 5 Concussio: 9 ex fractura calvariae 8 ex ictu aerio 3 ex vi opposita 4 Haemorrhagia 3 Hyperaemia labyrinthi....... 1 Labyrinthitis : 107 1 acuta primaria 1 secundaria 3 chronica: 8 primaria 1 secundaria 9 Morbus acustici 786 7 Neoplasmata in labyrintho... 0 Neuroses acustici : Hyperaesthesia 5 Paralysis 30 angioneurotica 3 hysterica 4 rheumatica 2 Panotitis : diphtheritica 1 idiopathica 0 scarlatinosa 3 Proprite notae Meniere 41 Trauma labyrinthi: 9 directa 0 indirecta 1 Total 1,058 Equal to a lit- tie over 1 per cent. of a 11 ear cases. Reports Consulted. Massachusetts Chronic Eye and Ear Infirmary, Boston, 1885, 1886 1888, 18S9, 189-1, 1891. 3 ' ' ' New York Eye and Ear Infirmary, New York city. 1882 1884 1885 1887, 1888, 1889, 1890, 1891. ' ' ' Presbyterian Eye, Ear. and Throat Charitable Hospital, Baltimore Md., 1877 to 1891, inclusive. Brooklyn Eye and Ear Hospital, Brooklyn, N. Y., 1869 to 1892 In- clusive. Manhattan Eye and Ear Hospital, New York City, 1885 1886 1887 1888, 18S9, 1890, 1891. J ' New York Ophthalmic and Aural Institute, New York City, 1885, 1886, 1891. Newark Charitable Eye and Ear Infirmary, Newark, N. J. 1887 1888 1889, 1890, ' ' ' Buffalo Eye and Ear Infirmary.. Buffalo. N. Y., 1887. Maine Eye and Ear Infirmary, Portland, Me., 1892. James Lancelot Minor. EAR: OPERATIONS UPON THE MIDDLE EAR. Ever since Sir Astley Cooper, in 1801, improved the hear- ing of a patient by perforating the membrana tympani, surgical procedures upon the middle ear have afforded a fruitful field for study, speculation, and argument. In no other branch of surgery, probably, have certain pro- cedures been so strenuously advocated for a short time, and, upon further investigation, been found to be dis- appointing in their results, and consequently abandoned for other measures equally useless. A glance at the his- tory of middle-ear surgery will, I think, partially explain this, by disclosing the fact that every new procedure was employed without proper discrimination, in a large class of cases where more care in defining exactly the indica- tions for the operation would have prevented its perform- ance. It is not strange, therefore, that every advance in this branch of our art is looked upon with suspicion, and that its efficacy must be proven beyond a peradventure 244 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Kar Diseases. Ear Operations. (SUPPLEMENT.) before it is adopted. Clearly before any operative meas- ure can stand this test the indications for its application must be distinctly defined, and the determination of these indications very often proves to be more difficult than the operation itself. It is evident that operations upon the tympanum can be of benefit only when the pathological process is limited entirely, or almost entirely, to this part of the auditory apparatus, and has not involved the adjoining parts secondarily. To be more clear, we can hope to relieve an impairment of hearing or a distressing tinnitus by operation upon the tympanic structures, only when we are assured, by a careful examination, that the receptive apparatus is in a fairly normal condition, thus locating the disease in the conducting apparatus. Again, if we are questioned as to the probable result of such a pro- cedure in a case of long-standing otorrhoea, it must be determined by careful examination that the bony necrosis is confined to those parts of the middle ear which can be reached by instruments introduced through the meatus; otherwise a complete removal of the affected parts would be impossible, and the result of an operation unsatisfac- tory. The above suggestion seems almost unnecessary, but one has only to study the reports of cases operated upon to be convinced that often the exact location of the patho- logical process was undetermined before the operation. Operative measures within the middle ear are under- taken : 1. For the improvement of hearing. 2. For the relief of subjective noises, or certain nervous phenomena, such as giddiness, etc. 3. For the relief of a persistent discharge. Any one of these conditions may exist alone, or all or any two may occur together and demand relief. As before stated, the success of operative treatment de- pends primarily upon our ability to locate the pathological process in the tympanum. I shall therefore preface what is to be said concerning the surgery of the tympanum by a few suggestions as to how we are best able to determine that, in any particular case, the middle ear is the part of the auditory apparatus at fault. If the purpose of our operation is to relieve a persistent discharge, careful ocular inspection and manipulation with the probe will enable us, in many instances, to determine the extent of the mor- bid process ; more will be said upon this point when we come to consider the operative methods for the relief of discharge. Most frequently, however, aid is sought for an impairment of the hearing, or a persistent tinnitus, and physical examination alone, in many instances, may mislead us as to the result of operative measures. It is not enough to find, in such a case, that the tympanum is the seat of a chronic inflammation, or that as the result of a preceding inflammatory affection the tympanic structures have been bound down to such an extent that they cannot transmit the sound-waves, but we must be certain that the receptive apparatus is in a fairly normal condition before a favorable prognosis can be given as to the result of relieving the tension of the conducting ap- paratus by surgical means. For this determination a series of tuning-forks has been found of great service. In my own work six forks are used, as follows : one, the lowest (C-') making 32 vibrations per second ; the next (C) making 128 vibra- tions per second ; the other four (C1, C2, C8, C') being C forks of the next four octaves, the highest registering 2,048 vibrations per second. The last five forks consti- tute the series used by Hartmann,1 and are really all that are necessary for determining the probable outcome of operative procedures, although the other fork (C-l) is so'metimes of use. It is well known that any rigidity of the conducting mechanism so alters the relation of air-conduction to bone-conduction that in affections of the middle ear the duration of bone-conduction, as compared with that of air-conduction is increased, and frequently may be greater. Further observation teaches us that the change begins with the lowest notes of the scale, and that as the parts become more rigid the higher notes are affected. Thus in a slight rigidity of the middle-ear mechanism, conse- quent upon a temporary narrowing of the Eustachian tube, or congestion of the lining of the tympanum, the lowest fork of the series will be heard longer from the mastoid than when held in front of the meatus, while all the other forks may be heard better through the air than through the bone. If now, instead of a slight rigidity, we have the conducting apparatus bound down by adhe- sions, either as the result of a chronic purulent inflamma- tion (with more or less complete destruction of the mem- brana tympani) or as the result of a non-suppurative inflammation of long standing, the membrana tympani being present and partaking perhaps in the pathological process, to the extent of being thickened in places, and even adherent here and there to the inner wall of the tympanum, we shall find as the power of audition be- comes more and more impaired, that the bone-conduc- tion for the successive higher forks of the scale will gradually become equal to, and at last better than, air- conduction. In other wrords, the degree of impairment of hearing, and the increased duration of bone-conduction for the higher forks, as compared with air-conduction, always bear a direct relation to each other, if the lesion is located in the conducting apparatus. If the hearing dis- tance for speech was so reduced that loud voice Was only heard close to the ear, and the duration of bone-conduc- tion exceeded that of air-conduction for the first two or three octaves only, we should not be justified in locating the lesion in the conducting mechanism alone, but should conclude that the receptive apparatus was affected as well. Especially would such a conclusion be warranted if, in addition to the above, bone-conduction for the fork C2 was appreciably reduced below the normal standard of bone-conduction, or if the fork C3 was not heard at all by bone-conduction, or if the fork C4 was perceived by neither bone- nor air-conduction. In such a case the chances would be that the receptive apparatus had be- come involved secondarily, and that although an opera- tion might successfully relieve the tension in the trans- mitting mechanism, this relief might not greatly improve the hearing on account of the condition of the deeper parts, which would be unaffected by operation. In applying these tests certain facts must be remem- bered. Thus, the age of the patient plays an important part in the determination of this question. Bone-conduc- tion in individuals past middle life is relatively reduced as compared with this power in youth and early adult life. This has been demonstrated by Urbantschitsch2 as due to senile torpidity of the auditory nerve, and can be confirmed by any one who makes use of the tuning- fork in a large number of cases. It is also to be remem- bered that secondary involvement of the receptive appa- ratus is less likely to have occurred when the cause of the impaired hearing or tinnitus has been a suppurative otitis, than when the tympanic affection has been of the sclerotic form. The duration of the malady is also to be taken into consideration ; but as operative measures would only be adopted after all other plans had failed to give relief, this need scarcely be mentioned. The above tests may be applied equally well to cases in which the membrana tympani has been partially or almost completely destroyed, or when it is intact. More- over they are not based upon theory, but are deduced from the comparison of the results, after operations, by the author, in a number of cases in which the tests have been made. Almost without exception success or failure could be predicted by a careful study of the results of the tuning-fork examination, and the cases where these tests indicated a probable unfavorable result were subjected to operation only at their own request, that they might be allowed to have every possible chance for improvement, however slight this might be. Preparations Preliminary to Middle-ear Op- erations.-While the remarks included under this head- ing may be, to a certain extent, superfluous, I have re- solved to enter into detail, for the reason that I believe the suggestions may be of value to some whose experience in this branch of otology has been limited. Instruments.-Most of the instrument-makers are pre- 245 Ear Operations. Ear Operations. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT. pared to furnish instruments designed for this special work ; many of the instruments are designed for the purpose of performing one particular operation, and usually have been modelled according to the idea of some one individual operator, and represent his personal pref- erences. It should be remembered, however, in this branch, as in general surgery, that individual preference for any one instrument does not of necessity indicate that it alone is adapted to the special procedure, but simply that in the hands of one familiar with its use it gular handles is again a matter of personal preference. For my own use I prefer to have most of the instru- ments so modelled that the shaft forms an angle of 30 to 45 degrees with the handle ; but as it is sometimes more convenient to use a straight instrument, it is well, in case the universal handle is to be used, to have one extremity adapted to receive the instrument at an angle, while by fitting the knife into the other end of the handle a straight instrument is obtained (see Fig. 156). For rapid operative work it is better to have each instrument in a separate handle, but as this increases the bulk of the case, as well as the cost of the instruments, the universal handle is often used. Of late I have made use of the ex- cellent suggestion of Prout,3 that the shank of the knife be left untempered, and in this manner its shape can be changed at will. Knives made in this way, and provided with simple octagonal metal handles, into which the shaft screws, can be obtained at a much less price than those of a more elaborate design, and as from their extreme delicacy instruments of this kind must be frequently replaced, this form certainly commends itself. At any operation all cutting instruments should be duplicated, and even a greater number of each variety is an advantage, as they soon become too dull for delicate work. It is important that in all knives the back of the blade should be of sufficient thickness to permit of its being honed to a very fine edge ; it being impossible to secure a keen cutting edge in a very thin knife. All knives should be as sharp as skill can make them, and when even slightly dull should be laid aside. It seems absurd to state this, but I have frequently had great dif- ficulty in impressing its importance upon instrument- makers, and consider it a point of the greatest impor- tance. The structures to be divided are extremely deli- cate, and unless the blade be very keen, may often be pushed aside by the knife, instead of divided, or undue force may be necessary in order to effect section, and im- portant structures may thus be damaged. Again, the field of operation being small, any failure to expose the parts as fully as possible, or the production of hemor- rhage by harsh manipulation, seriously hampers the operator. Immediately before the operation all instruments to be used should be sterilized by submersion in boiling water or exposure to steam for about ten minutes. Preparation of the Field of Operation.-In order to diminish the probabilities of suppuration, and reduce the reaction to a minimum, the field of operation should be rendered as aseptic as possible. In cases where there is no discharge from the ear, and the canal is clean, there is very little danger of infection from this source. It is safer, however, to order that the ear be syringed with a solution of bichloride of mercury, 1 to 5,000, twice daily for several days before the operation, and that after each syringing the canal be closed by a pledget of aseptic cotton. Of course, any cerumen or dead epithelium which may have collected in the canal must be thoroughly removed before the syringing is done. Upon the day of the operation the ear is not to be syringed, owing to the congestion which it causes ; Blake4 suggests that it may be wiped out by means of a pledget of cotton saturated with the antiseptic solution. In cases where there is discharge, the previous cleans- ing of the ear is of great importance, especially if there is to be any interference with the stapes, since in- fection of the labyrinth is among the possibilities. In all cases, therefore, where there is a purulent discharge, provided any operation is to be done beyond the simple division of adhesions, the ear should be syringed several times daily with an antiseptic solution in the manner already described. It is true that in many cases no harm comes from operating without carrying out these meas- ures, but it is only our duty to protect the patient in every possible way. When the middle ear has been the seat of a long-con- tinued suppurative process, we usually find considerable granulation tissue within the tympanum, or, if this is not the case, the remnants of the drum membrane, as a result of chronic myringitis, are much thickened, and richly Fig. 156.-Instruments for Intra-tympanic Operations, with Univer- sal Handle. has served a good purpose. Every operator will, from habit, develop a preference for a special device, and in his hands it undoubtedly is more serviceable than any other, but the aural surgeon upon entering the operative field should first obtain a clear idea of what is to be ac- complished, and then choose those instruments which seem to him best adapted to carry out the procedure. In a general way, then, the armamentarium should in- clude in addition to the ordinary instruments used in diagnosis and treatment, delicate knives, both sharp- and probe-pointed, and both curved and straight; knives curved on the flat, angular knives, the blade making an obtuse angle with the shaft, or a right angle, according Fig. 157.-McKay's Ear Forceps. (The blades should be about half an inch longer than in the forceps usually sold under this name.) to the topography of the parts upon which they are to be used, and it is well to have these also both sharp- and blunt-pointed. For the purpose of drawing parts which may be hidden from view into the field of operation, curved blunt hooks are useful. Curettes and spoons of various sizes and shapes-some dull, others sharp, and some placed at an angle with the shaft of the instrument- are exceedingly valuable for scraping away granulations and removing softened bone. For removing the parts detached during the operation, delicate forceps (Fig. 157) are necessary, and it is perhaps advisable that they should not be made too strong, as in this way the instrument may, by slipping, warn the surgeon that he is in danger of using too much violence. A good aural snare is also a convenient instrument to have at hand. As to whether the instruments should be mounted upon straight or an- 246 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Ear Operations. Ear Operations. supplied with blood-vessels, bleeding freely upon the slightest violence. It is often advisable in such cases to employ a certain amount of local treatment before the operation, in order to reduce the turgescence and render the operation more simple. Anesthesia.-As to the question of anaesthesia only general rules can be given. In general it may be stated that as these operations require exceedingly nice manip- ulation for their performance, and it is necessary for the patient to remain absolutely quiet, general anaesthesia is in most cases preferable, and in many absolutely neces- sary. For the division of adhesions in old purulent cases, in which there is a large exposure of the tympanic cavity, the introduction of a few drops of a strong solution of cocaine will usually render the operation endurable in patients who have a fair command of themselves. In these cases it is often necessary to do repeated operations on successive days, each one occupying but a few sec- onds, and in such cases general anaesthesia would cause the patient more annoyance than the procedure itself. Usually where the membrana tympani is present and we wish to enter the tympanic cavity for purposes of thorough exploration and subsequent operation, a gen- eral anaesthetic must be administered. If possible, how- ever, it is advantageous to make the exploratory incision by means of local anaesthesia, as we can then determine the effect upon the hearing, and subsequently induce general anaesthesia for the purpose of conducting any further procedures which may be necessary. For the production of local anaesthesia I have used a ten per cent, ointment of cocaine and lanolin. A small quantity is smeared on a pledget of cotton, placed in contact with the membrana tympani and allowed to remain for about ten or fifteen minutes. A certain amount of anaesthesia is gained in this way. After the membrana tympani has been incised, a drop of a ten per cent, solution of cocaine in the tympanic cavity will produce a very decided anaes- thesia. Miot5 claims that he has been able to carry on very extensive manipulation of the intra-tympanic structures by instillation of cocaine after incising the membrana tympani. Although the actual pain of these procedures is not great, the tax upon the nerves of the patient is severe, and much will depend upon the self-control of the individual. I have found the anaesthesia following the use of the lanolin and cocaine ointment, and the in- stillation of an aqueous solution of cocaine after the first incision, amply sufficient to remove the cicatricial mem- brana tympani which often forms after excision of the membrana, malleus, and incus. As all the cases operated upon by this method have been delicate females, I am inclined to think that the procedure has not been at- tended with much pain, as they scarcely complained. Cholewa6 has obtained excellent results from the use of strong solutions of aluminium aceto-tartrate as a local anaesthetic in this region, but I have no personal experi- ence with the method. In general, I should restrict local anaesthesia to the division of adhesions in cases where the tympanum is freely exposed as the result of a previous purulent inflammation, or when the parts are covered by a thin cicatricial membrane only, or where they are endowed with slight sensibility ; to partial myringectomy by chemical agents ; and to exploratory myringotomy. In all other cases I decidedly prefer general anaesthesia, and in my own hands ether has been the agent employed exclusively. If the ordinary rules for preparing a pa- tient for ether, such as attention to the food taken upon the day of operation, the condition of the bowels, etc., are attended to, the unpleasant effect of the drug is in a large measure avoided, and is rarely very disagreeable. Position of the Patient. -As we habitually inspect the ear with the patient in the upright or semi-recumbent position, the operator is placed at a decided disadvan- tage if the horizontal position is employed at the time of operation. Another disadvantage of this position is that with the head low, or only slightly elevated, hemorrhage is much more profuse, and the field of operation more obscured, especially that portion of the field in which (SUPPLEMENT.) lie the structures of the greatest importance, the upper and posterior part, the blood collecting in this situation in obedience to the laws of gravity. A still further ob- jection lies in the fact that if the ossicles are to be removed, the horizontal position favors the dislocation of the incus toward the mastoid antrum. For the com- fort of the surgeon the head should be in such a posi- tion that it can be easily turned in all directions without the operator's manipulations being in the least interfered with. For all of these reasons I now always operate with the patient in the semi-recumbent position. This is easily secured by means of the head and-shoulder rest shown in Fig. 158. This device is clamped to any con- venient table, or to a bed, the head-rest is removed, the shoulder-frame let down, and the patient is anaesthetized in the horizontal position, care being taken that the shoulders are well up on the frame. When complete anaesthesia has supervened, the shoulder-rest is elevated to the required height and held in place by the ratchet, as seen in the figure. The head-rest is placed in position and supports the occiput. As the head-piece is supplied with a ball-and-socket joint, the head can be placed in any desired position, and maintained by turning a screw which renders the joint immovable. Straps passed under the arms prevent the body from sliding downward ; ele- vating the foot of the table or couch also serves the same purpose. By this simple device the head is as completely Fig. 158.-Head-and-shoulder Rest. under the control of the operator as when the patient is conscious, and the surgeon can manipulate from all sides, his movements not being interfered with by the patient's shoulders, the edge of the table or other obstacles. An- aesthesia is maintained in this posture with no more diffi- culty than with the patient in the ordinary position. Illumination.-Many prefer daylight for all work upon the middle ear, and there can be no doubt that a perfect north light affords an ideal source of illumination. The great objection to natural light is its uncertainty. For this reason 1 have never used it extensively, even in the examination of patients, and have become accustomed to make use of the ordinary argand gas-burner. The slight yellow tinge of the gas-flame modifies the appearance somewhat, but if used to the exclusion of other sources of illumination, of course does not mislead. When general anaesthesia is resorted to, the gas-flame becomes objec? tionable on account of the danger of igniting the ether, and if it is removed to such a distance that there is no danger, its rays, reflected from the surface of the head- mirror, are scarcely powerful enough for fine operative work. If great care is used the gas-burner may be brought near enough to furnish sufficient light; it should never be less than five feet away from the inhaler, and at a somewhat higher level. As an additional pre- caution, the face of the patient, and the inhaler also, should be covered with a wet towel. Since the use of storage batteries has become general, the incandescent electric lamp has been much used, and undoubtedly affords the most convenient source of illumination. The lamp is usually placed in a cylinder, one end of which is provided with a double convex lens for rendering the rays convergent, while behind the lamp is placed a metal 247 Ear Operations. Ear Operations. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. reflector, which serves to direct all the rays through the lens. The apparatus may be worn upon the head by means of the ordinary head-band, or may be mounted upon a standard, and the head-mirror used in the usual way to illuminate the field of operation. If the first method is adopted the lens should have such a curva- ture as to bring the rays to a focus at a point about six or seven inches in front of the apparatus, while if the head-mirror is used the rays should simply be rendered parallel. As I habitually make use of the perforation in the head-mirror, I prefer to use the latter method ; this is simply a matter of personal preference, however. The use of the electric lamp does away with all fear of acci- dent from ignition of the ether, and permits the surgeon to give his entire attention to the operation. Classification of Operations.-The various opera- tions which have from time to time been suggested and performed upon the middle ear are quite numerous. While I do not propose to give a full history of all of these surgical procedures, it may be wise to men- tion them briefly, dwelling at length only upon those which seem to be of undoubted value. We may classify these measures as follows : 1. Operations involving the membrana tympani alone, under which are to be considered : (a) Perforation of the membrana (myringotomy). (b) Excision or destruction of a portion of the mem- brana for the purpose of establishing a permanent open- ing (partial myringectomy). (c) Single or multiple incisions through the membrana for correction of anomalies in tension. (Under this head we include division of the posterior fold, or plicot- omy.) 2. Operations involving the soft parts within the tympanum, under which we include : («) Tenotomy of the tensor tympani muscle. (b) Tenotomy of the stapedius muscle. (c) Section of the anterior ligament of the malleus. (d) The division of adhesions, the result of suppurative or non-suppurative inflammation. 3. Operations involving the ossicular chain, compris- ing : (a) Excision of a portion of the malleus. (b) Disarticulation of the incudo-stapedial articulation, or division of the long arm of the incus and mobilization of the stapes. (c) Plastic operations for the purpose of uniting either the incus or stapes with the membrana tympani. (d) Removal of the ossicular chain in its entirety, or the excision of individual ossicles. 1. Operations Involving the Membrana Tympani Alone. (a) Myringotomy.-Puncture of the tympanic mem- brane became a recognized surgical procedure chiefly through the investigations of Sir Astley Cooper.1 Per- formed primarily for the improvement of hearing, it was found that it was of permanent benefit only in those cases in which the hearing had been impaired by collec- tions of fluid within the tympanum. Its efficacy in such cases has been already discussed in the portion of this work devoted to otitis media, and need not be commented upon here. Under other conditions, closure of the open- ing by cicatrization reduced the hearing to its former condition. To us incision of the membrana tympani is of use not only for the evacuation of fluids, but as affording us a means of exploring the tympanic cavity, and determining the mobility of the stapes in cases where adhesions have formed within the middle ear. Schwartze8 recommended the excision of a portion of the membrane for the purpose of determining the mobil- ity of the stapes, while De Rossi9 advises the formation of a flap from the membrana tympani, and after turning it aside to fully test the mobility of the ossicles. It should be remembered that an operation through the membrana enables us not only to test the mobility of the ossicular chain by means of a probe, but if the opera- tion is performed without the use of a general anaesthetic, and this is often possible, we are able to observe the effect of the artificial opening upon the hearing. In (SUPPLEMENT). cases of thickening of the membrana tympani itself, or when it has become much relaxed, and by its own weight acts as a load to the conducting mechanism, the hear- ing will improve after the perforation. It also gives us some information as to the condition of the membrane covering the round window, since the artificial opening allows the sound-waves to impinge directly upon this part. Exploratory incision, then, is, in certain cases, of aid in informing us how much of the impairment in hearing is due to the presence of the membrana tympani and also the extent of the rigidity of the stapes. It is of special diagnostic value in cases of tympanic sclerosis, resulting from non-purulent inflammation, in which the receptive apparatus is involved secondarily. In such a case the probable outcome of surgical interference can sometimes be determined by exploratory myringotomy, since if the stapes were found movable, and the hearing is not improved by the artificial opening, very little could be expected from further operative procedures. In a case of this kind, in which this opinion had been arrived at by means of the tuning-fork tests, an exploratory incision enabled me to confirm the diagnosis, and advise against further operative interference. Steps of the Operation.-In the cases in which such an incision is likely to be required, the membrana tympani, as the result of the preceding inflammation, has usually lost much of its normal sensibility ; but if the impact of a probe causes pain it is well to place a pledget of cotton saturated with a ten per cent, cocaine lanolin ointment against it for a few minutes before operating. With a sharp knife a curved incision is to be made from the lower border of the membrana flaccida downward, di- rectly over the incudo-stapedial articulation if this is in view, otherwise the incision is to be made close to the posterior margin of the tympanic ring. The incision is to be parallel to the periphery of the membrana tym- pani, and should extend downward nearly to the level of the tip of the long process of the malleus. Usu- ally the edges of the wound retract enough to permit the articulation to be seen, and the mobility of the parts to be tested by means of a probe; if not, a second in- cision may be made from the upper extremity of the first, and carried toward the short process of the malleus, until a sufficiently large flap is formed to permit of the exposure of the articulation. The upper incision should lie just below the border of the membrana flaccida ; should this membrane be incised, the resulting hemor- rhage might obscure the field of operation, while if the section is made as directed above, and care is taken not to wound the inner wall of the tympanum, no blood will be lost and the exposed parts will be clearly seen. The mobility of the stapes can now be tested by means of a fine probe passed through this opening. Any effect upon the hearing should also be noted. If further operative- steps are deemed unadvisable, the edges of the incision should be approximated with the cotton-tipped probe, and a pledget of sterilized cotton adjusted against the mem- brane. In case of a simple incision the insufflation of a little boric acid is usually all that is necessary. (b) Partial Myringectomy.-For the purpose of estab- lishing a permanent opening in the membrana tympani various methods have been resorted to, such as excision of a portion of the membrane as advised by Gruber,10 de- struction of the membrane over a limited area by means of the actual cautery, as advocated by Voltolini,11 or by a chemical caustic, as practised by Simrock.12 Schcr- munsky 13 advises that a crucial incision be made in the membrane at the desired location, and that the edges of the wound be then cauterized with chromic acid. Ac- cording to this author, a permanent opening will be left upon the separation of the eschar caused by the chromic acid. In my own hands this method has proved as useless as the others, and it has been the experience of all otolo- gists who have attempted this procedure, that in most in- stances the opening closes, though in some cases the inter- val is very long. To maintain a permanent opening, Politzer14 advised the insertion of a vulcanite eyelet into the perforation made either with the galvano-cautery or 248 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Ear Operations. Ear Operations. with the knife. Experience has proved that even this method is ineffectual, and it has fallen into disuse. The only cases in which I can conceive of partial myringectomy as being advisable are those in which further operative measures are to be employed, in case an opening in the membrane improves the hearing. Here I believe that all the indications are better met by the exploratory myringotomy already described. In one case in which I attempted to establish a permanent opening in the membrane, the method of Simrock was employed, and as this seems to be rather simpler than the other procedures I will describe it in detail. A minute drop of concentrated sulphuric acid is carried into the canal on a cotton-tipped probe, and held against the membrane at the point where the perforation is to be made, care being taken not to touch the canal at any point. The acid at once destroys the membrane over the area touched, and perforation is readily effected by means of a blunt probe. In my own case very little reaction followed, and I am inclined to believe that the method accomplishes the purpose quite as well as the more complicated procedures. After the perforation has been made, the parts should be kept clean, either with the cotton pledget, or, in case a profuse discharge super- venes, the syringe may be used, although the less the parts are manipulated the longer the perforation remains, as a rule. (c) Multiple Incision of the Membrana Tympani.- This operation has been advocated both by Politzer15 and by Gruber,16 but, curiously enough, for exactly opposite conditions. Politzer recommends the procedure in cases when the membrana tympani is much relaxed, the result of the cicatrization of a large perforation, believing that the contraction following the healing of the incisions will correct the relaxation. In his hands the operation has met with a certain amount of success. On the other hand, Gruber finds that when the membrane has become tense or rigid from a chronic inflammatory process that several incisions made through it will, upon healing, re- lax the abnormal tension, and permit the parts to per- form their functions more properly. Gruber advises that the incisions be made from the centre toward the periphery, through the dense portions of the membrane, the adjacent lines of section being connected by trans- verse incisions, somewhat in the form of the letter H. I have had no experience with this procedure, and should be inclined to believe that when the operation was performed for relaxation the improvement would be at the most but temporary. The method of perform- ing the operation must of course vary in each individual case ; care should be taken that the inner wall of the tympanum is not wounded by the point of the knife, as any bleeding would obscure the subsequent steps. Cica- trices of the membrane are only slightly sensitive, and the incision of a membrane thickened by a chronic my- ringitis is also usually much less painful than when the membrane is normal; hence in an intelligent patient general anaesthesia is seldom necessary, although it would be advisable to employ it if the patient is ner- vous. . Plicotomy.-Division of the posterior fold of the membrana tympani was proposed by Politzer11 and by Lucae18 at about the same time. This measure was recommended when the membrana tympani was much retracted, the short process and posterior fold being very prominent. In such cases the contraction of the fibres of connective tissue forming the posterior fold increases the tension of the conducting apparatus, and interference with function is the result. The operation consists in the division of this fold by an incision midway between the short process and the peripheral extremity of the fold and perpendicular to the direction of the fold. Either the sharp-pointed knife may be used, or, as Politzer advises, the extremity of the instrument may be rounded, so as to diminish the dan- ger of dividing the deeper structures. The same author advises that the incision be made from above downward. Gruber19 has found better results from incising the fold longitudinally. In either case, if the operation has the desired effect, the manubrium will assume a less horizon- tal position, showing that the tension has been relieved. The immediate effect seems to have been to diminish the subjective noises, and in some cases to improve the hear- ing, but the improvement has almost always been tem- porary. My own experience has been limited to but one case, and here no improvement resulted. The op- eration is devoid of danger ; if the chorda tympani is wounded the effect upon the sense of taste will be but transitory, and with proper care suppuration should not follow the operation. It is well to allow the wound to heal slowly, and for this purpose daily inflations for a few days after the section has been made may be prac- tised. Locally, the insufflation of a minute quantity of boric acid is probably the best treatment for the w'ound. The operation is so uncertain in its results that it cannot be strongly advocated, since it will be the exception to find the increase in tension limited to the posterior fold. Usually the presence of similar constricting bands in other parts of the tympanum render the outcome of the procedure unsatisfactory. The next group in our classification comprises : 2. Operations in which Various Muscular or Fibrous Structures within the Tympanum are Divided. (a) Tenotomy of the Tensor Tympani Muscle.-This op- eration was proposed by Hyrtl,20 but was first performed upon the living subject as a therapeutic measure by F. E. Weber.21 The indications for performing this operation have never been definitely given, as it is manifestly im- possible to be certain that in a given case the increased tension of the conducting apparatus depends entirely upon a shortening of the tensor tympani muscle. The most prominent indication for its performance seems to be a temporary improvement of the hearing or relief of tinnitus immediately after inflation, the symptoms soon reappearing, however, as the membrane becomes depressed. It is argued that in such cases the muscle has become permanently shortened, either by participa- tion in the tympanic inflammation or from the fact that, on account of Eustachian obstruction of long duration, the aeration of the tympanum has been imperfect and the membrane sinks inward upon the promontory. The function of the tensor is thus ablated, and the muscle soon becomes atrophied from disuse and is converted into a tense fibrous band which prevents the membrane from resuming a permanent normal position, even when the patency of the tube is restored. In addition to this, it is supposed that by the tension of the muscle the manu- brium is pressed upon the inner wall of the tympanum with considerable force, thus mechanically adding to the inflammatory process already present in the middle ear. It will be seen that if such is really the case a di- vision of the tendon of the muscle would remove one of the causes of the tympanic inflammation. Since the operation was first proposed valuable contributions to the subject have been made by Green,22 Pomeroy,23 Hart- mann,24 Schwartze,24 Cholewa,26and Muller.21 It is hardly necessary to say that in addition to the objective signs al- ready given, as indicating the advisability of the opera- tion, the result of the tuning-fork tests should also be considered and should indicate unquestionably a lesion of the conducting apparatus as the prominent pathological condition. Cholewa states that the forks C and C1 should be heard at least eight seconds by bone-conduction, and that the air-conduction for the forks C1, C2, C3, C4, should not fall much below one-fourth the normal duration of air-conduction for these tones. Steps of the Operation.-Most authors agree that general anajsthesia is seldom necessary, and Cholewa states that in many of these cases the sensibility of the membrana tympani is much diminished. The same author advocates the induction of local anaesthesia by strong solutions of aluminium aceto-tartrate or by ether, a pledget of cotton saturated with the agent being placed in contact with the membrane and the fluid allowed to evaporate. The oint- ment of cocaine and lanolin may also be used in the same manner. In the very few cases in which I have resorted to this measure it was rather difficult to control the pa- tient as perfectly as might have been desired, and I believe 249 Ear Operations. Ear Operations, REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) that a general anaesthetic will add much to the complete- ness of the operation. With reference to the method of dividing the tendon there is considerable difference of opinion. Weber-Liel and Cholewa have advised that it be accomplished by the introduction of the knife in front of the short process of the malleus. Both of these operators have devised special instruments for the purpose, differing from each other only in the shape of the blade. These instruments were constructed in such a way that the hook-shaped knife could be rotated upon the long axis of its shaft by sliding a button upon the handle. The technique with an instru- ment of this kind is as follows : The membrana tympani is incised just in front of the processus brevis, the hook- knife introduced into the tympanic cavity, and by de- pressing the handle of the instrument and carrying it somewhat forward the blade is made to press upon and partially encircle the tendon ; by sliding the button upon the handle downward the hook-blade is rotated, thus dividing the tendon ; by again manipulating the slide the blade assumes its original position and the instrument is carefully withdrawn from the tympanic cavity; a forcible inflation and the insufflation of a little boric acid to cover the wound complete the procedure. Much simpler are the methods of Schwartze, Hart- mann, Gruber, Pomeroy, Green, and Urbantschitsch, who divide the tendon without the aid of the complicated instrument above described. With the exception of Gruber,28 all of the above writers prefer entering the tym- panic cavity behind the malleus handle, and Gruber states that in some cases, where the anterior segment is very small, this may be advisable. Almost every operator has devised a special instrument which, in his hands, has ap- peared more satisfactory than any other, from which we may infer that, bearing in mind the anatomy of the parts, almost any instrument -with the blade curved on the flat may be used for the purpose. Schwartze, Pomeroy, and Green prefer a blunt knife, curved on the flat, similar to that represented in Fig. 156, D, with the exception that the curve should be a little sharper than represented. Gruber's knife is less curved and is pointed. Hartmann's knife is pointed, and, in addition to the curve on the flat, the sharp point is curved upward, so that when the knife is inserted the point passes well up into the tympanic cav- ity. Urbantschitsch29 uses a knife with a double cutting edge, the blade being short and making an obtuse angle with the shaft; an instrument similar to that shown in Fig. 1, C, with the exception that it is blunt instead of sharp. The position of the puncture and the manipulation of the instrument after the blade has entered the tympanic cavity will vary according as the tendon is to be divided from above downward, or from below upward ; and here again I believe the operator should be allowed a certain amount of latitude, depending upon the conformation of the parts in each special case. If the division is to be made from above downward, as advised by Schwartze and Urbantschitsch, the membrana tympani is punctured immediately behind the short process, and the curved or angular blade of the knife is carried high up into the tympanic cavity by depressing the proximal end of the instrument, which at the same time should be carried a little backward, thus causing the blade to apply itself closely to the malleus. The blade is then rotated forward and downward through an angle of 90°, the tendon being severed by a slight sawing motion, and by pressing the knife downward, at the same time withdrawing it. As the tendon is divided the operator feels the resistance which it offered suddenly overcome, and frequently a sharp snap is heard at the moment of division. Hartmann and Pomeroy divide the tendon from below upward. Hartmann advises that the membrane be in- cised just below and behind the short process ; upon entering the tympanic cavity the knife is advanced for- ward, inward, and slightly downward, the shaft remain- ing almost horizontal and the flat surface of the blade be- ing close to the handle of the malleus until the blade has nearly traversed the breadth of the tympanic cavity, when the handle is depressed, thus carrying the curved point of the knife high up in the tympanum ; the instru- ment is then withdrawn, upward pressure being con- tinually exerted, and the tendon is divided from below upward. Just before the tip of the knife emerges from the tympanum, the handle is elevated to avoid injury to the parts in tlie region of the posterior fold. Pomeroy 30 first punctures the membrane behind the manubrium and near its tip, and then introduces a blunt curved knife, with its concave side looking forward and being closely applied to the handle of the malleus. The tendon is di- vided by depressing the handle of the knife and extend- ing the incision upward to the short process. Green 31 enters the tympanic cavity with a myringo- tome, behind and below the short process of the malleus, and extends the incision upward to the margin of the ring. Through this incision the curved blunt knife is introduced and the tendon located ; it is divided either from above downward, or in the opposite direction, ac- cording to its attachment in each individual case. When it seems desirable to divide the tendon by an incision through the anterior segment of the membrana tympani, the curved knife is to be carried through the membrane somewhat below the short process, the con- cavity of the knife looking backward. On entering the cavity the instrument is advanced upward and back- ward, keeping the blade closely applied to the malleus handle. The tendon is thus divided from below' up- ward. Whatever method is used to effect a division of the tendon, the after-treatment consists in a forcible in- flation by means of the catheter or Pulitzer's method, after which the incision is covered with a little boric acid and the wound allowed to heal. Results.-The immediate effect of the operation is usually to diminish the subjective noises, and in some cases the hearing improves. It has been the experience of many observers, however, that the good results have been but temporary, and that after an interval the symp- toms have reappeared. This may be explained by the reunion of the cut ends of the tendon, or by the invasion of other parts of the conducting apparatus by the patho- logical process. My own experience with the operation has been limited to a few cases, in which the tendon was divided for the relief of tinnitus. In one case there was considerable improvement; in the others the final result is not known, but immediately after the operation there was no improvement. In making the section I ordinarily use the curved knife (Fig. 156, 1)), the membrane being first incised with a pointed knife, either in front or be- hind the manubrium, according to the shape of the canal and the amount of retraction present. I am not enthusiastic over the operation, for the reason that it is absolutely impossible in any given case to be certain that the tensor tendon is the only intra-tympanic structure affected. While our methods of determining that a lesion is located in the conducting apparatus are fairly perfect, we have no means as yet of assuring our- selves that the increased tension is due to a shortening of the tensor tympani tendon alone. My own choice, when operative measures are necessary, is usually for a pro- cedure which corrects the increased tension, no matter in what portion of the mechanism it is located. Of late the operation has been again brought to the notice of the profession by Cholewa39 and Muller.33 Cholewa strong- ly advises its performance in the cases variously called sclerotic, proliferative, or insidious, not only from the effect upon the ear operated upon, but also for the im- provement which he claims often results in the opposite ear. The poorer ear is always the one operated upon first, and even when its condition is not much improved, this author has found in many cases a remarkable im- provement in function upon the opposite side. I shall allude to this later, in describing my own experience in cases of ossiculectomy. Muller advocates the operation in cases of purulent in- flammation, in which the discharge continues in spite of careful cleansing and local applications. He believes that the contracted tendon, by crowding the articular surfaces of the ossicles together and binding them to the tympanic wall, is a prominent factor in keeping up the inflammation. 250 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Ear Operations. Ear Operations. He reports a number of cases in which tenotomy was followed by a rapid cessation of the discharge. The effect upon the function of the organ and upon subjec- tive noises was also satisfactory. (b) Tenotomy of the Stapedius.-Division of the stapedius tendon alone scarcely deserves a place among the oper- ations, since when this muscle needs to be divided the section of its tendon is only one step in operative pro- cedures to free the stapes. With the other portions of the conducting mechanism normal, I can conceive of no condition which would indicate tenotomy of this mus- cle. Accordingly the description of the procedure will be given under those operations of which it really forms a part. (c) Division of the Anterior Ligament of the Malleus.- This measure was advised by Politzer34 in cases of marked retraction of the membrana tympani. It was found that, even after section of the tendon of the tensor tympani, the membrane in some cases would not retain its normal position upon inflation. If, however, the ligamen- tous structures of the anterior fold were divided the mem- brane could be made to resume its normal position. The operation consists in puncturing the membrane just in front of the short process with a short curved knife, carrying it nearly to the inner wall of the tympanum ; the handle is then depressed and the knife withdrawn, thus dividing the tissues in the anterior fold. In the cases in which this operation was performed by Politzer there was considerable relief to tinnitus, and the hearing was somewhat improved. The objection to the operation is the same as that mentioned in tenotomy of the tensor tympani, viz., that we are never certain that the increased tension is entirely dependent upon the anterior ligament. The procedure may, however, be made use of in cases of tinnitus, with but slight impairment of the hearing, in which more radical measures might be considered a menace to the auditory function. (d) The Division of Adhesions, the Result of Suppurative or Nonsuppurative Inflammation.-Under this general head we include a large number of procedures, differing from each other according to the precise local condition met with in the individual case. As the stapes is the part of the ossicular chain whose motion is a necessity to useful audition, the ultimate aim of all our efforts is to render motion of this ossicle possible. We have then two classes of cases : 1. Those in which the rigidity depends upon adhesions about the stapes itself. 2. Cases in which the rigidity is caused by adhesion of the malleus or incus to the inner tympanic wall, or by tense bands immobilizing the entire ossicular chain, the articulations between the various ossicles being intact. Naturally these conditions are more pronounced in cases of old purulent inflammation, although the same condition may obtain in cases of non-purulent otitis. It scarcely need be stated here that a diagnosis is much more simple in cases arising from a purulent inflamma- tion, as the result of which the membrana tympani is largely wanting, enabling the surgeon to see the location of the constricting bands, and to manipulate the parts with the probe, than in those cases in which the deeper parts must be viewed through the membrane, or if this is too opaque, through an artificial opening made for this purpose. It follows that operative measures of this character are much more successful in purulent cases than in the other variety. When the rigidity depends upon adhesions about the stapes itself, as a result of a purulent otitis, the incudo- stapedial articulation having been destroyed, we find the region of the oval window occupied by a mass of dense tissue, which frequently completely changes the appear- ance of the parts. Not infrequently the head of the bone is so buried as to be distinguishable only as a slight elevation upon the surface of tTie mass. Close inspection may reveal a preponderance of the newly formed tissue toward the posterior aspect of the region of the window. This is ordinarily due to the deposit about the stapedius tendon which sometimes can be seen as a bright line run- ning through this mass. To free the stapes (or what is left of this ossicle) in such a case I usually first incise directly downward close to the tympanic ring, so as to divide any bands which tend to pull the stapes out of the field of vision. In making this incision it is important that the knife be carried inward until the inner tympanic wall is encountered, and that in the downward stroke all the tissues be completely severed throughout their entire depth, otherwise some fibres of the stapedius may remain undivided, and pull the stapes out of view. The knife is next carried entirely around the area believed to be occupied by the stapes, thus freeing it from adhesions above, below, and anteriorly. When the knife is carried inward until the bony wall of the tympanum is encoun- tered, care must be taken not to insert it so deeply that, in case the entire stapes has come away, the labyrinth will be wounded. Taking the region of the oval window as a centre, several short radiating incisions are next made to permit the tissues to retract from the oval win- dow; the local depletion thus obtained is also an advan- tage, as it favors the rapid formation of a thin cicatricial membrane in place of a thick one. After the operation a little boric acid may be insufflated, and syringing should be avoided if possible, as moisture is objection- able. Frequently this procedure has to be repeated several times, for the process of cicatrization may partially re- produce the old condition, but by repeated incision, dividing the parts most tense, favorable results usually follow in a large proportion of cases. Of course here, as in other conditions, the tuning-forks should be used to locate the seat of the lesion in the conducting apparatus. In the second class of cases, where the motion of the stapes is impeded by pressure from other parts of the conducting apparatus, which are bound down by adhe- sions, relaxation of the tension of these parts frequently effects an improvement. Thus we frequently meet with cases in which there is a large perforation, involving the inferior half of the membrane ; the edges of the mem- brane may adhere to the promontory throughout their extent, or the adhesion may be confined to the region of the manubrium. In this latter instance I usually separate the structures with the flat curved knife (Fig. 156,D), al- though Politzer38 prefers to make vertical incisions through the cicatrix. In either case adhesions reform, but the tension is lessened, and improvement usually results. It is in such cases that MullerS6 advises division of the tensor tympani muscle. In still another class of cases, with considerable destruc- tion of the membrana tympani, the remnant of mem- brane in the upper and posterior quadrant will be found thickened and tense, its lower border forming a dense fibrous band, which binds the underlying structures firmly together, and may partially or completely hide the stapes or incudo-stapedial articulation from view. Dividing this band by an incision upward will fre- quently improve the hearing, or in exposing the stapes may reveal a condition here amenable to operation. Examples of all of these different conditions have come under my own observation, and the results have always been gratifying. A few of these cases were reported some time since,31 and subsequently I have met with many more cases in which the results have been gratifying. When adhesive processes are the result of the so-called otitis media insidiosa, the division of adhesions is not followed by such good results, for the simple reason that when divided through an artificial opening in the mem- brana tympani, any bands which reform during the process of healing can only be attacked by reopening the tympanic cavity, in fact, by repeating the original opera- tion. While in the class already considered the opera- tive field is always open to inspection, and the operative interference may be undertaken at intervals, according to indication, in the cases we are now considering, the ultimate success or failure depends entirely upon the single operation, and the result of faulty cicatrization cannot be corrected. Still in certain instances the divi- sion of adhesions has been of benefit in this class of cases. Thus De Rossi38 reports a case in which, after turning 251 Ear Operations. Ear Operations. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) down a flap from the membrana tympani, a fibrous band between the malleus and incus was divided. The flap was replaced and held in position by means of a cotton pledget. The patient was much improved by the opera- tion. Prout39 operated upon a case in which the mem- brana tympani about the tip of the malleus was adherent to the inner tympanic wall. The instrument used re- sembled the knife shown in Fig. 1, C. By this means the adhesion was divided, that portion of the membrana which was adherent being cut away and either removed or left adherent to the inner tympanic wall. A perma- nent perforation resulted and the hearing was perma- nently improved. While I am heartily in favor of these procedures in cases dependent upon suppuration, I believe that they are to be advised only in special instances where there has been no suppuration. When upon an exploratory myrin- gotomy a condition is found, as in De Rossi's case, which is sufficient to explain all the symptoms, and in which a single operation promises every prospect of success, the simple division of the existing adhesion is all that is indicated. Most frequently, however, we find that the rigidity does not depend upon such a cause, but that the ossicular chain can be rendered normally movable only by the division of adhesions in several localities, especially about the stapes, and so located that subsequent cicatrization is almost certain to result in a return, to a certain extent, of the former local condition. In such cases I prefer to re- move the membrana tympani, malleus, and incus at once, the field of operation being then accessible for further measures in case of necessity. My reason for this is that when the membrana is intact, a prolonged intra-tympanic operation necessitates general anesthesia in most cases, and this cannot be resorted to again and again on account of the discomfort to the patient which it entails. With the tympanic cavity open, as in purulent cases, or after removal of the membrane, malleus, and incus, local anaes- thesia by means of a solution of cocaine suffices for all operative procedures of this kind. Hence in any non-sup- purative case where general anaesthesia is to be resorted to for the purpose of an exploratory myringotomy and the division of adhesions, the patient's consent for my- ringecto-ossiculectomy should be obtained, in case the con- dition revealed by exploration should render this advis- able. 3. Operations involving the Ossicular Chain.-(a) Ex- cision of a portion of the manubrium mallei and a large part of the membrana was proposed by Wreden 40 in cases where it was deemed desirable to maintain a per- manent opening in the membrane. The procedure has fallen into disuse, and it is probable that it would not accomplish the end aimed at. (b) Disarticulation of the Incudo-stapedial Joint, or Division of the Long Arm of the Incus, with Mobilization of the Stapes.-This measure is one of the most satisfactory operative procedures which fall to the lot of the otologist. It is of especial value when there has been previously a suppurative inflammation with destruction of the mem- brana tympani in the upper and posterior quadrant, or when the articulation is covered by a thin cicatrix only, through which the parts can be easily seen. It is of less value in cases of otitis media insidiosa, since the closure of the opening made for the performance of the operation renders it impossible for the surgeon to relieve by second- ary operations any unfavorable results attending cica- trization. In cases where both the long arm of the incus and the posterior crus of the stapes are in view and uncovered, the joint maybe divided by inserting the angular knife (Fig. 1, C) behind the long arm of the incus and cutting down- ward through the joint; any portions of the capsule undi- vided may be severed by inserting the point of the knife into the joint below and cutting upward, and also by hooking the instrument around the anterior aspect of the long arm of the incus and cutting downward. It is usu- ally advised that the knife be hooked around the posterior aspect of the long arm of the incus and the joint opened from above, downward and forward, the resistance offered by the stapedius muscle rendering this the simplest pro- cedure for disarticulating at the joint. This is theoreti- cally correct, but is open to several objections. In the first place, the long arm of the incus frequently lies so near the margin of the tympanic ring that the knife can only be inserted in this locality by the use of considerable force ; again, if the joint is divided before section of the stapedius tendon has been done, the pull of the stapedius muscle may so displace the stapes as to render its subsequent mobilization impossible. My own method of procedure is therefore to thoroughly divide the stapedius tendon and the adjacent adhesions as the initial step of the operation. This is done in the manner already described, by inserting the sharp straight knife behind and above the head of the stapes, between it and the tympanic ring, carrying it inward until the point touches the inner tym- panic wall and then cutting directly downward. By this procedure the stapes, and hence the articulation, is re- leased, and by the action of the tensor tympani and the elasticity of cicatricial bands located anteriorly the ar- ticulation is brought more clearly into view. The an- terior aspect of the descending crus of the incus is in such a position that by applying the angular knife to this, and cutting downward, the joint is easily divided, or it may be more convenient to enter the joint from below with the point of the knife, and cut upward, sweeping the blade anteriorly and posteriorly as a final step. If the knife is sharp no violence will be done, although the resistance afforded by the stapedius has been ablated. After the joint has been divided the long arm of the incus is pushed upward and forward, so that it cannot reunite with the stapes. Attention is next given to the condition of the stapes, and if this is not freely movable it is to be freed by passing the pointed knife about the foot-plate, dividing all bands which may be found in the manner already described in treating of adhesions about the stapes. If the ossicle remains firmly fixed after these incisions have been made, it may be mobilized by pressing upon it with a cotton-tipped probe, the pressure being ap- plied successively from below, from above, and upon the anterior and posterior crura. Care must be taken not to rupture the crura by this manipulation. I have in quite a number of cases obtained a marked improvement in hearing and a diminution in the tinnitus by the division of the incudo-stapedial articulation and of the stapedius muscle, together with fibrous bands about the stapes, and this is, I believe, the experience of all otologists who have made use of the method. In a cer- tain number of cases we find that the incudo-stapedial articulation has become ossified and division with the knife is impossible. In such an event Politzer41 divides the long arm of the incus with stout scissors and separates the fragments so that reunion is impossible. As before stated, mobilization of the stapes by division of the incudo-stapedial articulation and of adhesions about the ossicle is mostly of service in cases dependent upon a previous suppuration. In cases of otitis media insidiosa the mobilization of the stapes has been attempted, not- ably by Miot,42 who enters the tympanum by an ex- tensive incision along the posterior margin of the mem- brana tympani, and by means of a delicate instrument, the distal extremity of which is flattened into a small plate, mobilizes the stapes by pressure applied from below up- ward, from above downward, and upon the anterior crura backward. In certain cases also traction is made upon the long arm of the incus, to aid in the mobilization. The stapedius muscle and the incudo-stapedial articulation are left intact, unless the latter is ossified, when the long arm of the incus is divided. If adhesions exist between the incus, malleus, and the tympanic wall they are divided. The author claims that by frequent inflation by Valsalva's method the wound in the membrane can be kept open long enough to admit of several attempts at mobiliza- tion upon successive day§, if the first does not afford the improvement hoped for. General anaesthesia is not considered necessary, as after the first incision through the membrane the introduction of a solution of cocaine into the tympanic cavity produces sufficient anaesthesia. In cases following a purulent inflammation the same general plan is followed, the author preferring to over- 252 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Ear Operations. Ear Operations. come the rigidity by stretching the adhesions rather than by dividing them, although in certain cases he uses the knife. I have never attempted this method of procedure, but in one case of otitis media insidiosa I entered the tympanic cavity, and after dividing the incudo-stapedial articulation severed the stapedius muscle, as well as all adhesions about the base of the stapes. There was a moderate amount of reaction, and after the closure of the opening in the membrane the hearing remained the same as before operation, although the tinnitus was somewhat improved. Although the method of Miot is certainly unique, and his results seem to have been good, yet I can scarcely believe that the operation will ever come into general use. There can, it seems to me, be no advantage in leaving in the tympanic cavity structures whose function has been so impaired by the inflammatory process that they are of little use, while by their presence they afford an ad- ditional opportunity for the recurrence of the condition for which operative measures have been, instituted. Stretching of the adhesions may give temporary relief, but the method which, theoretically at least, would be the best, would be the one which prevented all possibility of their reformation. This indication, in my opinion, is better met by the free use of the knife, and the re- moval of all parts not absolutely necessary to the func- tion of audition. (c) Plastic Operations for the Purpose of Uniting the Incus or Stapes with the Membrana Tympani.-By means of the above procedure vibrations falling upon the mem- brana would be transmitted directly to the stapes ; in cases, therefore, in which extensive adhesions existed, limiting the mobility of the malleus or incus, or both, or when, as the result of relaxation, the membrana tympani and one or both of the two larger ossicles by their own weight acted as a load to the conducting mechanism, this proced- ure, theoretically at least, should be beneficial. Blake43 has performed operations of this character, but at pres- ent, in similar cases, he prefers stapedectomy. So far as I know, Dr. Blake has never published an account of these operations but refers to them incidentally in the above communication ; he was also kind enough to explain the method to the writer three years since. Operation.-A triangular flap from the posterior-su- perior quadrant of the membrane is turned aside, exposing the incudo-stapedial articulation ; by means of the probe the mobility of the incus and stapes is determined ; All tension due to adhesions about the stapes or to contrac- tion of the stapedius muscle is relieved by incision. If, now, the incus and stapes move freely, the triangular flap is pressed against the long arm of the incus, and held in place by a pledget of cotton. If the incus is not freely movable, disarticulation at the stapedio-incudal articulation is performed, and the flap applied to the head of the stapes instead of to the long arm of the incus. (d) Removal of the Ossicular Chain in its Entirety or the Excision of Individual Ossicles.-We come now to oper- ations in which either the entire ossicular chain or indivi- dual ossicles are removed. These operations have either been done for the purpose of improving the hearing or relieving tinnitus, or, in cases where the function of the auditory apparatus was not sufficiently impaired to necessitate interference of any kind, they have been called into requisition for the arrest of long-continued suppuration which had resisted all other forms of treat- ment. It is evident at once that as one or all of these con- ditions may be present in any given case, it may often happen that the decision for or against operation becomes an exceedingly delicate matter. Given a case in which the hearing is good enough to allow the patient to carry on his vocation in life without the least annoyance, and yet with a chronic discharge from the ear, which has failed to yield to skilful treatment, we must be certain that any operative interference which may be advised for the cure of the otorrhoea will not impair the function of the organ. In another case, in which impairment of the hearing or severe tinnitus has resulted from a chronic non-suppurative inflammation of the tympanum, or has been produced by a previous suppurative process, the ear (SUPPLEMENT.) at the time advice is sought having been dry for a long period, no measures for relief can be strongly advised which may result in long-continued suppuration. The surgeon must, therefore, not only be able to hold out a fair prospect of success for the operation, in accomplish- ing the purpose for which it is to be performed, but must also be able to assert that no disagreeable consequences are likely to follow its performance. The history of operations upon the ossicular chain is interesting, from the fact that it shows how the earlier operators hesitated to interfere with the parts intimately connected with the labyrinthine structures, and that it was only after a considerable period that it became a recognized fact that the labyrinth might remain unin- jured in spite of considerable traumatism inflicted upon the ossicular chain, or even its complete loss. As early as 1873 Schwartze44 advised the removal of the malleus and incus for caries, but stated that removal of even a portion of the stapes should be avoided for fear of a purulent infection of the labyrinth. lie also states45 that as early as 1873 he practised removal of the malleus and membrana tympani and disarticulation of the incudo-stapedial articulation in cases of chronic non- suppurative inflammation. In this condition he appar- ently did not remove the incus, but simply disarticulated it from the stapes. In 1876 Kessel,46 having several years before proved that the removal of the columella in birds was not attended by severe consequences, effected mobilization of the stapes in a patient in whom the malleus and incus had been destroyed by suppuration. The operation consisted in tenotomy of the stapedius muscle, and the division of adhesions binding the foot-plate in the oval window. From the reading of this report there can be but little doubt that the membrane covering the oval window was punctured and a certain amount of perilymph allowed to escape. There was some improvement in the hearing and a diminution of the tinnitus, but more important than this, no severe symptoms followed. The same au- thor,41 at a later date, excised the membrana tympani, malleus, and incus, and mobilized the stapes in a case of complete closure of the Eustachian tube. While it had been demonstrated quite early that removal of the two larger ossicles was not a dangerous or difficult operation, but one which was frequently indicated in caries, and followed by good results, even when no suppuration had been present, yet it was not until several years later that these measures were practised to any extent. In 1885 Lucae48 published an account of fifty-three operations in cases of sclerosis, and called attention to the necessity of excluding serious labyrinthine involvement by means of testing the hearing with a series of tuning-forks before holding out a hope of improvement from operative pro- cedures. While Lucae's published results are not as favorable as might be wished, they certainly demonstrate the fact that in certain cases such operative procedures are in the highest degree beneficial, and warrant placing them among the legitimate means for improving other- wise hopeless cases. In 1888 Sexton 49 reported a number of cases of chronic non-suppurative otitis media, in which excision of the membrana tympani, malleus, and incus had been bene- ficial. The removal of the ossicles for the relief of chronic suppuration has been continually gaining ground, and thanks to the contributions of Kretschmann,60 Stacke,61 Ludewig,52 Grunert,53 and others, it is now looked upon as a recognized surgical procedure. All writers upon the subject of intra-tympanic operations, involving the re- moval of the ossicles, have until quite recently avoided interfering with the stapes, or at the most have recom- mended the division of adhesions about the ossicle, and subsequent mobilization by brisement force. Jack 54 and Blake55 have, during the last year, demonstrated that the entire stapes may be removed without danger, and in many cases the result has been a decided improvement in the hearing. Both of these surgeons, as the outcome of experience, advocate the removal of the stapes for the improvement of the hearing in cases where the impair- 253 Ear Operations. Ear Operations. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. ment depends upon some lesion of the conducting mech- anism, resulting from either suppurative or non-suppu- rative inflammation ; the other ossicles are left in situ, unless carious. We have then to consider the following operative measures : 1. Removal of the malleus and incus. 2. Removal of the malleus, incus, and stapes. 3. Removal of the stapes (stapedectomy). If the membrana tympani is present,'this is also re- moved as completely as possible in performing the first two operations above enumerated, while in stapedectomy the membrane is left. In cases where long-continued and uncontrollable sup- puration exists, or is the sole cause for operative in- terference, the two larger ossicles will certainly require removal; the advisability of removing the stapes will depend upon conditions which will vary with the indi- vidual cases. If carious, the affected bone should cer- tainly be removed ; if healthy, the question of its re- moval will depend upon the condition of the hearing before the operation, and the probabilities of improving it by the excision of this ossicle, as indicated by the careful functional examination of the ear before the operation, and the amount of rigidity of the stapes, as determined by manipulation after the two larger ossicles have been removed. When removal of any or all of the ossicles is to be practised for the improvement of the hearing,-the pro- cess which has given rise to the impairment having been either non-suppurative inflammation or a purulent in- flammation which has ceased either spontaneously or as the result of treatment, leaving a rigidity of the conduct- ing mechanism,-advice as to the propriety of operative interference is a matter of no little moment. In the first place the lesion must be located in the conducting appa- ratus by the tuning-fork tests already alluded to. It is not enough that the inspection of the ear reveals a pathological condition of the conducting mechanism. It must be proved that this is at present the cause of the defective audition, since secondary changes may have taken place in the labyrinth which place the case beyond all hope of improvement by any operation upon the con- ducting mechanism. Evidence of such involvement of the labyrinth can only be excluded by a careful func- tional examination, and the method which has served me the best purpose has already been given in the early part of this paper. Both Lucae and Kessel have called at- tention to the necessity of such an examination before undertaking operative interference for the purpose of improving audition, and the tests used by these observers are in the same line as those already described. As to the choice of operation, much is to be said. In all the operative procedures previously described, the object has been to reduce weight or tension in the con- ducting apparatus, by the division of muscles, adhesions, ligaments, folds of the membrana tympani, etc., or to establish a communication with the middle ear by a permanent opening in the membrana tympani, thus admitting sound to the oval window more directly, this end being still further carried out, in certain cases, by disarticulation at the incudo-stapedial articulation. Each individual procedure has, in certain cases, been of undoubted benefit, and the lack of enthusiasm with which they have been viewed has been due to the fact that it has been impossible to declare positively that the rigidity was the result of a limited lesion, such as contraction of the tensor tympani, tension of the posterior fold or similar localized conditions, and experience has shown that the same pathological process which has caused any of these conditions, in the large majority of cases, has ef- fected changes in other parts of the conducting appa- ratus as well, which would be uninfluenced by opera- tions affecting one portion only of this mechanism. In other words, we can be pretty certain of rigidity of the conducting mechanism as a whole, but as yet cannot de- fine the exact limits of the lesion. It seems rational, therefore, that removal of the membrana, malleus, and incus, by affording direct access of the sound waves to the oval window or head of the stapes, should meet the (SUPPLEMENT.) indication better, or that the evulsion of the stapes itself, by removing the effect of increased tension of the laby- rinth caused by the binding down of the other structures within the tympanum, should be a rational method of pro- cedure in cases demanding operative interference. When the two larger ossicula are excised, the operator usually endeavors to maintain a permanent opening into the tym- panic cavity, while when the stapes alone is removed, this end is not aimed at ; but if the membrana tympani is present every attempt shoidd be made to restore it to its integrity after the operation. While I do not favor criticism unsupported by personal experience, I cannot help feeling that the removal of the stapes alone, in cases where the membrana tympani is intact, the wound made by the operation being closed as quickly as possible, is not a commendable procedure. The two larger ossicles certainly perform no function, after removal of the stapes, while they certainly increase the probability of serious reaction following the proced- ure, since they aid in shutting off the atrium from the fornix tympani not only by their own presence but also by the preservation of the numerous folds of mucous membrane found in this region, which reduplications are obliterated by the removal of the two larger ossicula. Again, the presence of the membrana tym- pani itself must present a certain amount of obstruction to the entrance of waves of sound, while if the mem- brane, malleus, and incus are taken away, it will be possible, certainly in most if not all cases, to maintain a permanent opening into the tympanum. Still further, cases are met with in which complete anchylosis of the foot-plate of the stapes renders removal of the ossicle in- advisable or impossible, and the surgeon can only divide all adhesions about the foot-plate, in the hope of securing a slight amount of motion. In such an event it would certainly be of advantage to be able to divide, subse- quently, any adhesions which might form during cica- trization, after the first operation. If the membrane and the two larger ossicles have been removed, access can be easily gained to the stapes without resort to general anaesthesia, even if the membrane has reformed, as the re- sulting cicatricial membrane is only slightly sensitive, and may be easily removed under local anaesthesia. More than this, by the obliteration of the folds of the mucous mem- brane lining the vault of the tympanum, no reaction fol- lows repeated operative interference in these cases, and as these folds must, on account of their density, tend to reduce the amplitude of sonorous vibrations, their preservation cannot be urged for the purpose of improving the function of audition. The desirability of leaving the membrana tympani for the purpose of protecting the tympanum is not clearly proved, since the mucous lining of the middle ear, after exposure to the air for a short time, ceases to be sensitive, and secretes almost no fluid. If, however, the protecting influence of the membrana tympani is deemed important, this can be secured, even though the malleus and incus have been removed ; for a large portion of the membrane maybe left intact and made to adhere to the inner tympanic wall, thus affording a cutaneous cov- ering, while at the same time access can be easily had to the oval window. That the operation of removing all of the ossicula is more prone to be followed by serious reaction than removal of the stapes alone, I am not pre- pared to admit. Certainly my experience has been that the reaction following the removal of the malleus and incus has been practically nothing. Stapedectomy, then, would be the operation of election in a case in which the stapes was easily accessible, but was bound so firmly by adhesions (due to a former otitis media purulenta) that disarticula- tion from the incus and the division of adhesions would produce no permanent effect, while at the same time the region of the stapes had been shut off from the other parts of the tympanic cavity by the previous inflammation. In such a case, removal of all of the ossicles would hardly be called for, while removal of the stapes would be sim- ple, and the thin cicatrix would afford easy access to the region for the purpose of further operative procedures. In non suppurative inflammation, if the portion of the drum membrane covering the stapes were very thin, 254 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Ear Operations. Ear Operations. (SUPPLEMENT.) fected with the angular knife (Fig. 156, C). The knife, inserted into the handle in such a way that the point is directed backward, is carried into the tympanic cavity in front of the long arm of the incus, ami the blade passed to the inner side of this process ; by slight traction out- ward and pressure backward the instrument is made to hug the descending process of the incus, while, at the same time, the articulation is divided with a downward stroke. Any fibres of the capsular ligament which may have escaped division may be severed by inserting the point of the knife into the articulation from below, and sweeping the blade backward and forward. If fibres still remain undivided posteriorly, the angular knife is to be turned in an opposite direction, the point directed forward, when by passing it behind the long process of the incus, a downward stroke will complete the division. If these steps have been carried out as indicated, it will be the exception if more than a drop of blood has been lost. Next, with the pointed knife, a short, horizontal incision is made through the membrana tympani at its most de- pendent part, close to the insertion into the annulus tym- panicus ; the pointed knife is quickly laid aside and the probe-pointed knife (Fig. 156, E) is inserted, and the mem- brane is divided along its posterior periphery from below upward, until the exploratory incision is encountered. In the same manner the anterior segment of the membrane is divided from below upward with the probe-pointed knife, the incision extending as far as, but not into, Shrapnell's membrane. Up to this point no blood has been lost and the field of operation is as clear as when we started. There remains to be divided the membrana flac- cida and the ligaments which bind the malleus externally, in front, and behind. The pointed knife is again used for this section, which should be made rapidly ; the knife is held so that the flat surface of the blade looks toward the roof of the canal, the cutting edge being directed back- ward ; the point of the knife is entered just above the short process of the malleus and is pushed inward and upward, the handle being depressed so that the shaft often touches the margin of the speculum. In this manner the knife is made to enter the fornix tympani; it is now made to cut its way out, downward and backward, thus sever- ing the external and posterior ligaments of the malleus and dividing the membrana flaccida posteriorly. The knife is then quickly turned and made to cut in the opposite direction, being carried forward over the short process, dividing the anterior segment of the membrana flaccida, some fibres of the external ligament, and the strong anterior ligament of the malleus. The malleus is now held only by the superior ligament and the tendon of the tensor tympani, neither of which is strong. The hemorrhage from the last incision may be free, and may obscure the field, but, usually, owing to the elevated position of the head, the upper part of the field is not ob- scured, and the short process of the malleus can be dis- tinctly seen. The ossicle is quickly grasped, just below the short process, with the forceps (Fig. 157), and by press- ure inward to dislodge the neck of the bone from the projection on which it rests, followed by traction down- ward and then outward, the ossicle is extracted ; no force is required to rupture the tendon of the tensor tympani or the superior ligament, as they offer very little resist- ance. It will be necessary now to wipe out the blood which has followed the removal of the malleus, but in most cases a single pledget of cotton will dry the cavity com- pletely. The incus is next sought for, and, if in sight, is grasped with the forceps and removed, traction being exerted at first downward and then outward. Most fre- quently when the incus is in view, the long process will be seen, not in the normal location but lower down, and lying close to the border of the tympanic ring, so close, frequently, that it is easily overlooked, apparently con- stituting a part of the ring. Manipulation by means of a probe reveals its identity, and the ossicle can be extracted in the manner already described. This dis- placement of the incus downward and backward is due to the fact that in the removal of the malleus the capsu- making it probable that, after removal of the ossicle, the flap of the membrane would fall inward and adhere to the tissues over the oval window, thus affording no bar- rier to the entrance of sound, here again stapedectomy might be chosen ; it is also applicable to certain cases in which, for any reason, general anaesthesia is objection- able, the patient possessing sufficient self-control to per- mit of the operation being done under local anaesthesia. As before stated, the membrana tympani is often par- tially or completely anaesthetic, and, after an opening has been made into the middle ear, perfect local anaesthesia can be obtained by the introduction of a ten per cent, so- lution of cocaine. Much will here depend upon the com- mand which the patient has over himself, and the opera- tor is certainly working at a disadvantage, but special circumstances may make the trial advisable, the possibil- ity of failure having been explained to the patient before the attempt is made. In all other cases, however, I be- lieve it is much simpler to clear away the other structures first, and then to decide whether the stapes should be re- moved or left in situ. The technique for the removal of the membrana tym- pani, malleus, and incus is the same whether the stapes is to be removed or left in position ; hence, to describe both operations separately, would be but a repetition. I shall give, therefore, the steps for the removal of all the ossicula, the reader understanding that, in case the stapes is to remain, the steps to be carried out up to this point are exactly the same. The method of operating differs some- what, in cases where the membrana tympani is intact, from that employed when it is partially or almost com- pletely destroyed, and the technique in each will be given. Technique of the Removal of the Membrana Tympani and the Ossicles when the Membrana Tympani is Intact. -With the sharp knife (Fig. 156, F) an incision is made through the membrana tympani in the upper and pos- terior quadrant, commencing just below the point where the posterior fold meets the tympanic ring, and, following this curve, is carried downward to about the middle of the posterior border of the ring. This incision is made close to the insertion of the membrana, but should lie entirely in the clear membrane, for the reason that if this is done no hemorrhage results. For the same reason care must be taken not to wound the inner wall of the tympanum with the point of the knife, as any bleeding greatly obscures the field of operation, and renders the succeeding steps more difficult. The edges of the in- cision are now separated, and the incudo-stapedial artic- ulation is usually clearly and easily exposed. If suf- ficient space is not gained, a horizontal incision may be made from the upper extremity of the first, forward toward the short process of the malleus, the section fol- lowing the course of the posterior fold, and lying just below it, thus avoiding the more vascular tissues. In this way a flap is formed, which, on being turned downward, enables the operator to see the incudo-stapedial articula- tion clearly. The next step is the division of the stape- dius tendon ; this may sometimes be seen, running from the neck of the stapes backward, disappearing behind the tympanic ring ; frequently, however, the head of the stapes lies so close to this structure that the tendon cannot be seen ; in such a case the pointed knife used in dividing the membrana tympani is inserted close to the head of the stapes, and slightly above it, and carried in- ward until the inner wall of the tympanum is reached ; a short cut downward is then made, carrying the knife between the head of the stapes and the tympanic ring, while the point is still firmly pressed upon the inner wall of the tympanum. In this way the muscle is thoroughly divided. When the tendon can be seen, its division is perhaps more simple, but in either instance the point of the knife should be firmly pressed against the inner wall of the tympanum, in order that the tendon and any ad- hesions about it may be thoroughly and completely sev- ered. As soon as this has been done, the action of the tensor tympani will bring the incudo-stapedial articulation and the stapes more clearly into view. The next step is the division of the incudo-stapedial articulation, which is ef- 255 Ear Operations. Ear Operations. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. lar ligament binding the two ossicles together must be ruptured. The incus itself is attached to the tympanic wall simply by means of a single ligament running from the short process of the incus to the wall of the fornix tympani. Traction downward on the malleus displaces the incus downward and also revolves it backward, the short process being the fixed point. Thus, frequently, after the malleus has been removed, careful inspection of the field of operation fails to reveal any trace of the incus, it hav- ing been rotated entirely out of sight behind the tym- panic ring. To effect its extraction is not always easy, and yet in cases where there has been no suppuration it will rarely happen that the ossicle will escape. When not in sight, the long process of the incus can be easily brought into view by means of the incus hooks (Fig. 156, H). These hooks are curved in opposite directions for the right and left ear, the concavity of the curve looking anteriorly in each case when the instrument is inserted into the handle with its angular extremity directed up- ward. The incus hook is passed into the tympanic cavity, and the angular portion passed behind the tym- panic ring close to the floor of the canal, the hook being inserted in such a way that the concavity of the hook looks upward. When the angular portion of the instru- ment has entirely disappeared behind the ring, the in- strument is drawn outward until it is felt to press closely upon the inner surface of the tympanic ring, when it is rotated forward, at the same time being carried a little upward. Usually this manipulation swings the long arm of the incus into view. The difficulty sometimes met with in securing the incus usually lies in the fact that the operator is inclined to search for the ossicle too high up in the tympanum and to forget that the long process lies close to the margin of the ring ; the hook is, therefore, frequently carried too deeply into the tym- panic cavity and fails to engage the long process. This manoeuvre is to be repeated several times in case the first effort is not successful. If no free body is felt with the hook posteriorly, it is then inserted into the tympanum, at the anterior inferior portion, with the curve of the hook directed posteriorly ; the hook is now rotated, sweeping the extremity which hugs the tympanic ring closely, backward, and at the same time carrying the in- strument somewhat upward. This manipulation will bring the incus into view in case the posterior ligament of the incus was ruptured during the removal of the malleus, allowing the ossicle to fall into the lower part of the tympanic cavity, an event which may sometimes happen. If the ossicle is not found in either of these situations the hook should be swept upward and forward through the postero-superior and superior portions of the tym- panic cavity, keeping it still pressed firmly against the internal margin of the ring. Care is to be taken in this manipulation that the hook does not pass between the crura of the stapes or fracture them as it is carried forward. If the ossicle still remains hidden, the hook having the opposite curve should now be used, being carried into the fornix tympani, with the concavity di- rected backward, the angular portion of the instrument being hooked behind the inner extremity of the superior wall of the meatus ; the instrument is now rotated backward, and at the same time is carried downward, rotation being continued through an angle of 180°. The object of this manipulation is to dislodge the incus, in cases -where its posterior ligament is very strong, or where the long process has been rotated far backward out of reach of the hook. After this downward sweep it is well to repeat all of the steps for dislodging the incus in the order named, as this last manipulation may displace the ossicle downward, although it may still remain hid- den from view. The objection to beginning the search in the manner last mentioned lies in the fact that if the ossicle is already free, or nearly so, the manipulation is apt to displace it so far toward the mastoid an- trum as to render it entirely inaccessible. I have writ- ten upon the method of extracting this ossicle some- what at length, because I believe it to be extremely im- portant to remove it if this be possible, and I feel certain (SUPPLEMENT.) that the advantages gained in its extraction are more than enough to warrant prolonging the operation for this pur- pose. After the incus has been removed the cavity is thor- oughly dried, and the region of the round window in- spected. Any thickening in this situation should be overcome by cutting away the hypertrophied tissue, if present in sufficient amount to permit of this. Usually, however, we find simply a thickening of the mucous membrane about the fenestra. Stellate incision of this thickened tissue, by means of the angular knife (Fig. 156, B), most frequently relieves the tension. The stapes is next inspected and its mobility tested. If rigid, all adhesions about it should be divided ; if its motion is now free, the operation may be considered completed. If, on the other hand, the motion of the stapes is still impeded, or if the adhesions have been found so extensive that, after these have been divided, cicatrization will probably render the ossicle rigid again, the stapes should be removed. All soft tissues binding it down should be carefully severed with the sharp knife passed around the foot-plate, after which a delicate hook is passed between the crura and the ossicle is removed by traction. It is often more easy to grasp the head of the bone with the forceps, and remove it in this way than by making use of the hook. In cases where difficulty is experienced in finding the incus, and it is deemed necessary to remove the stapes, this ossicle being easily seen, it is often wise not to delay the removal of the stapes until the incus is found, since in the manipulations necessary to displace the incus the crura of the stapes might be accidentally broken, or the head of the bone be so displaced as not to be easily seen. Hence, if the incus is not readily found, the stapes may be removed as the second step of the op- eration, and the incus subsequently searched for. If the stapes is removed at this stage of the procedure, care must be taken in searching for the incus that the incus hook is not passed through the oval window, thus injuring the labyrinth. This may seem a needless precaution, but any one who has studied the parts upon the cadaver will appreciate how easily the incus hook could be passed through the thin membrane covering the fenestra ovalis. The reason of this lies in the fact that the plane of the oval window is not vertical, but inclined downward and outward. When this opening is situated high up, and is almost hidden by the tympanic ring, the incus hook may be easily carried under its upper margin and through the membrane covering the opening, the operator mis- taking the resistance offered for that of the tympanic ring. If the posterior wall of the canal is closely fol- lowed, and the incus hook made to enter the tympanum low down, and it is made afterward to hug the tympanic ring closely, this accident cannot occur, In some instances the margin of the tympanic ring hides the stapes so completely that this ossicle can hardly be seen, and it is impossible to form an intelligent opinion as to its condition, or to effect its removal. In such an event the margins of the ring in this situa- tion may be cut away by means of the forceps shown in Fig. 159. These forceps are so constructed that when open the distal extremity of the lower blade can be passed up behind the tympanic ring. Upon closing the instru- ment the chisel blade cuts away a small chip from the overhanging wall. By repeating this procedure, enough space can be gained to permit of access to the stapes and oval window. Occasionally the foot-plate of the stapes will be found to be so firmly fixed in the oval window that it cannot be loosened, and that after dividing all adhesions its removal is impossible, the crura sometimes being broken in the attempt at extraction. In such an event the oper- ator should proceed with the greatest caution. All the soft tissues should be carefully removed from the oval niche by means of the short angular knife (Fig. 156, B) and a delicate curette. If the outline of the foot-plate can now be made out, a pointed knife should be carried around its periphery, in the hope of making an opening at some point where the union is less firm ; through such 256 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Ear Operations. Ear Operations. an opening a delicate hook can be introduced and a part at least of the foot-plate brought away. If complete ossification has taken place, I should advise the cautious use of a small guarded drill, which might be made to perforate the foot-plate at its centre, after which portions might be removed with the hook. I have never had oc- casion to do this upon the living subject, but should not hesitate to do so, using, of course, great care ; it would be possible to carry out this step without evacuating the perilymph, but even if a small quantity of the fluid should be lost, Kessel's66 observations have proved that no harm results. After all the operative steps deemed necessary have been carried out, the cavity is to be dried with pledgets of cotton, and a tampon of iodoform gauze introduced. This is packed rather firmly into the tympanum, while the canal is but loosely filled. The object of the gauze is to check any oozing which may occur, and prevent the formation of a blood-clot within the middle ear, for if this is allowed to form it may give rise to considerable pain, by preventing the escape of secretion during the first days after the operation, at which time its removal is apt to be somewhat painful. A few hours after the operation, this tampon is removed, and the ear douched with a warm weak antiseptic solution, such as a saturated solution of boric acid, ora solution of bichloride of mercury, 1 to 8,000, after which the tam- pon is reinserted. When the odor of iodoform is objection- able, sterilized or borated gauze (SUPPLEMENT.) of discharge after the operation will depend upon the habit of the patient, and also upon the condition of the mucous membrane of the tympanum. In cases of ad- vanced sclerosis, the amount is frequently insignificant, especially if the patient is not of a full habit. On the other hand, when the tympanic cavity or the fornix tympani has been full of connective tissue rich in blood- vessels, the discharge following the operation will be more profuse. It is probable, also, that prolonged ma- nipulation within the cavity at the time of the operation, favors a more profuse discharge, although this is cer- tainly not so in all cases, and should not deter the oper- ator from doing a deliberate and thorough operation. I have written somewhat at length about the manage- ment of the cases after operation,' because I consider this an important point. In a general way, the less that is done after the operation, the more likely we are to obtain a permanent opening into the tympanic cavity, a condition always to be desired. Hence, the aim should be to keep the ear clean with as little manipulation as possible, and to avoid the use of astringents or caustics to stop the discharge, since they will cer- tainly promote the reformation of the tympanic membrane. With reference to the amount of dis- turbance caused by the above procedure, this is very slight. In forty cases, both purulent and non-purulent, all, with the exception of five, left the hospital twenty-four hours after the operation, and resumed their regular daily work without the least trouble ; and quite a number returned home upon the evening of the same day, the operation having been performed in the afternoon. Of course the stapes was not removed in all of these cases, and when the ossi- cle is taken away, I prefer to confine the patients to the house for twenty-four hours at least; yet in three cases of stapedectomy the patients returned home in less time than this, without any unpleasant effects, while in two cases in which this ossicle was left in situ, but had been subjected to considerable manipulation in securing the incus, dizziness persisted for several days after the opera- tion. As a rule, the patient can be assured that any general disturbance, sufficient to incapacitate him for work, will not last more than twenty-four hours, an item of importance among those who find it impossible to obtain a longer respite from their daily vocation. Of this we can be as certain as in allotting the same period for the disappearance of the unpleasant effect of general anaesthesia, and the surgeon is justified in promising that the effects of the operation will not detain the pa- tient, after the disturbance due to the anaesthetic has passed away. When the stapes is to be removed, how- ever, the dizziness may make locomotion difficult for a somewhat longer1 period, and if there is a probability that this will be necessary, it is not wise to promise that the giddiness will not interfere with locomotion for sev- eral days, although in quite as many cases the reverse has been true. If the malleus and incus alone are re- moved it will be decidedly rare for any such disturbance to follow. Pain or severe local inflammation I have never met with as the result of these operations, for the reason, I believe, that such perfect drainage exists that no reten- tion of secretion is possible. In this respect I feel certain that the complete removal of the ossicles and membrane commends itself, wdien compared with some of the intra- tympanic operations, in which less apparent violence is done, but in which free drainage is not secured. As regards the partial or complete reproduction of the membrana tympani, my experience has been that, as a rule, the membrane will reform, although this is not always the case. For dealing with this result the re- moval of the two larger ossicles is of great advantage. The membrane which reforms is usually thin, and not as sensitive as the normal membrane, and its removal is but a trivial matter, both for the patient and surgeon. Again, its reproduction does not always impair the result of the operation. In cases, however, in which, after the membrane has been reproduced, the hearing becomes Fig. 159.-Cutting Forceps for the Removal of a Portion of the Inner Ex- tremity of the External Auditory Canal. may be used. This second tampon is allowed to remain for from twelve to twenty-four hours. The subsequent treatment depends upon the amount of local reaction fol- lowing the procedure. If there is but little discharge, the cleansing of the ear once daily by the surgeon, followed by the insufflation of boric acid, dermatol, or some kin- dred powder, will be all that is necessary. If the patient cannot be seen daily, as is usually the case in dispensary practice, gentle syringing of the ear once or twice daily, according to the amount of discharge, is all that will be required, and I have never thought it wise to trust the insufflation of any powder to the patient. When the discharge is only slight, even the syringing is objection- able, and an intelligent patient may be allowed to cleanse the ear, by simply wiping it out with a pledget of cotton wound upon an appropriate cotton-holder. On the other hand, if at the end of a week there is still considerable secretion, the patient is directed to instil a few drops of a solution of boric acid in alcohol, of a strength of twenty grains to the ounce, after each syringing. The amount 257 Ear Operations. Ear Operations. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) worse than while a perforation was present, it should be removed. General anaesthesia, in iny experience, has never been necessary; a pledget of cotton smeared with a ten per cent, ointment of cocaine in lanolin, ren- ders the membrane sufficiently anaesthetic for incision ; after which a drop of a ten per cent, aqueous solution of cocaine, introduced into the tympanic cavity, renders the remainder of the operation painless. The operation is best performed by passing the straight knife (Fig. 156, F) through the membrane close to the tympanic ring and just above the head of the stapes, and dividing the posterior attachment of the membrane close to the ring for a short distance, great care being taken not to wound the mucous membrane of the tympanum. The probe-pointed knife should then be substituted, and the attachment followed downward to its lowest point. It will then be found that the tissue is so relaxed that division of the anterior attachment is difficult; to over- come this, the sharp knife is again passed through the membrane at its upper part, just in front of the original puncture. A little pain is usually experienced from the incision, but it is only momentary. The anterior at- tachment is now divided downward with the blunt knife, until the incision meets that which severed the posterior attachment. Usually the relaxation interferes with the complete section. The membrane is now held by a thin strip of tissue above and below. A touch with the sharp knife severs these attachments, or weakens them to such an extent that the entire membrane can be easily removed with the forceps. The procedure is so simple that if at- tention is given to the aseptic condition of instruments and field of operation, no reaction results. The opera- tion may be performed safely at the office of the phy- sician, and the patient at once allowed to resume his usual duties. It is well to protect the ear by the insertion of a cotton pledget, which need not be worn for more than twenty-four hours after the removal of the new membrane. The patient should be cautioned to guard against taking cold, but, further than this, no special pre- cautions are necessary, The procedure is not likely to be followed by any discharge, and all syringing of the ear is to be avoided, unless pain or profuse discharge su- pervene, as disturbing the parts in any way may excite enough reaction to cause a reproduction of the mem- brane. One point is worthy of special attention, and that is, that the removal of a membrane which has formed after operation should not be undertaken until all traces of in- flammation have disappeared. The surgeon must wait until the newly formed tissue is pearly white and glis- tening, and until the mucous lining of the tympanum has also assumed its normal condition, as evidenced by the absence of redness, engorgement of its vessels be- ing easily made out through the thin cicatricial mem- brane. If this rule is not observed the operation will be more painful, and reproduction is almost certain. If the membrane reform again, a second or third removal is still more simple, as the density of the tissue is less each time that it is reproduced. In one case this was so marked that after the first incision the edges of the wound retracted so widely that it was possible to re- move only a minute portion of the new-formed tissue, and yet the tympanum was freely exposed, and no re- production has followed at the end of several months. In plethoric individuals a persistent reproduction of the membrana tympani after excision can be prevented by a restriction of the diet for a few weeks previous to and following the secondary removal of the structure. This is suggested by Sexton,* and I have proved its efficacy. In certain instances it may be found that the new membrane has become adherent to the inner wall of the tympanum, thus rendering its complete removal diffi- cult. In one such case, in which the stapes had been left in situ, the hearing remaining impaired, apparently on account of the stapes being bound down by the newly formed membrane, this structure was divided first be- hind the head of the stapes and the incision carried downward close to the tympanic ring for a distance equal to about one-third its posterior margin. The stapes then lay free while in front there was a flap, attached by adhesions to the inner tympanic wall ; this flap was turned forward and the underlying wall of the tympa- num was scarified, after which the flap was replaced and pushed down upon the wall of the middle ear, care being taken that the free margin lay below the tympanic ring. Adhesion at once resulted, leaving the stapes pro- jecting into the canal, while the tympanic cavity was largely obliterated from the adhesion of the membrana to its inner wall. Thus the middle ear was thoroughly protected by a cutaneous covering, while the parts essen- tial to audition remained accessible for further operative procedure. The patient, though better, is still under treatment, and I hope for still further improvement fol- lowing the division of remaining bands which bind the stapes. It may be advisable in certain cases to preserve the anterior portion of the membrana tympani in re- moving the malleus and incus, and, after scarification of the inner wall of the tympanum, to attempt to secure adhesion of the anterior segment of the membrana to this. In this manner we might shut off the anterior part of the tympanic cavity from the posterior portion, which contains the structures concerned in audition. The pos- terior portion would in this manner become covered by epithelium from the surface of the membrana tympani, and the objection of having an exposed mucous surface would be avoided. In this manner we could by care secure a thin epithelial covering for the round and oval windows, the stapes being removed, or not, according to indications. 1 have never performed the operation with this object in view, but from the fact that nature occasionally succeeds in doing this unaided, it may not be out of place to suggest it here as worthy of trial. Technique of Operation where the Membrane is Partially or Almost Completely Destroyed.-When a purulent in- flammation has resulted in the destruction of a consider- able portion of the membrana tympani, the method of procedure must be to a certain extent modified. In some of these cases we shall find the lower portion of the mem- brana wanting, the membrana flaccida thickened and highly vascular, binding the ossicles down and concealing them more or less completely; we may be able to rec- ognize by inspection only the prominent short process of the malleus and a portion of the manubrium, the lat- ter lying almost horizontal, its tip bound firmly to the upper part of the inner tympanic wall. Behind the short process examination with the probe reveals the incus and stapes as present, but whether in their entirety or not cannot be determined. In other cases, while there may have been extensive destruction of the mem- brana tympani, the posterior superior segment is cov- ered with a thin cicatricial membrane through which the incudo-stapedial articulation is plainly seen, or this joint may be completely exposed, no covering being pres- ent. My rule has been in all cases where the incudo- stapedial articulation is visible, or where this region is covered by a non-vascular membrane whose division will not lead to annoying hemorrhage, to first divide the stapedius muscle and then the incudo-stapedial artic- ulation, in the manner described when considering the method of operation in cases in which the membrana tympani is intact. When, however, it is evident that an incision in this region will be followed by hemorrhage, such a step only serves to complicate the operation, as the bleeding will render it impossible to see the incudo- stapedial articulation and divide it with certainty, and will frequently completely obscure the field of operation and hide even that most prominent and inlportant land- mark, the short process of the malleus, and considerable difficulty may be experienced in removing this ossicle even. Experience shows us that when this condition exists there is very little hemorrhage after the mem- brana flaccida has been completely freed from its attach- ments and removed, together with the malleus. Our first step, then, must be to insert the straight pointed knife above the short process, pushing it inward and * The Ear and Its Diseases, New York, 1889, p. 392. 258 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Ear Operations. Ear Operations, upward until the inner wall of the tympanum is en- countered, where it is made to divide rapidly the attachments of the remnant of membrane to the tym- panic ring by directing its edge backward and incising close to the margin of the ring, and then, without re- moving it from the wound, to turn the edge in the op- posite direction and divide the anterior attachments. In cutting backward the operator must bear in mind that the incudo-stapedial articulation has not been sev- ered, and in this region as little force as possible should be used ; for this reason also the posterior incision should be first made as above directed. Almost immediately the fundus of the canal fills with blood, but for a few seconds at least the short process is plainly visible, and if examination has shown us that the manubrium is not firmly bound to the promontory, the malleus is at once seized with the forceps just below the short process and removed in the manner already described. If, however, firm adhesions are known to exist, or if the malleus is found to be firmly fixed upon grasping it with the for- ceps, no force should be used to effect its removal, but the canal should at once be tamponed firmly with cotton by carrying an elongated plug to the tympanic cavity with the forceps and pressing it firmly upon the tympanic wall, the remainder of the plug being then forced inward. Upon this tampon a second and third are crowded until there is no bleeding about the plugs. If held in position for a few moments and then removed with the forceps, the field of operation will be found to be dry, the bleed- ing having been entirely checked. Any given area can be more completely cleansed by touching it with a small pledget wound upon a cotton-holder. The adhesions binding the malleus to the promontory can now be di- vided with the blunt knife curved on the flat (Fig. 156, D), after which the ossicle is removed by means of the for- ceps. If the malleus is still firmly fixed, manipulation by means of the probe will determine the situation of the undivided attachments, and their section can be effected. When it has been possible to divide the incudo-stape- dial articulation as the initial step, I frequently remove the malleus in the manner above described as the second step of the operation, in place of first freeing the rem- nant of the membrane from its peripheral attachments below, anteriorly, and posteriorly ; this, of course, ap- plies to cases in which the greater portion of the tym- panic membrane has been destroyed. When only a com- paratively small portion of the membrana vibrans is wanting and excision is deemed proper, it may be well, after dividing the incudo-stapedial articulation, to sever the peripheral attachments of the membrane from below upward, by means of a blunt knife introduced through the perforation. As a rule, however, so many adhesions exist between the inner tympanic wall and the lower portion of the membrana that such a proced- ure is unadvisable ; moreover, the parts are frequently so vascular that the attendant bleeding may complicate the more important part of the procedure-the division of the superior attachments and the removal of the mal- leus. It is usually wiser, in these cases, to divide the upper segment first, the knife being carried into the perforation in terminating the posterior and anterior in- cisions. It may seem hazardous to subject the stapes to the possibilities of violence attendant upon removal of the malleus before the incudo-stapedial articulation has been divided. A moment's reflection will convince one, how- ever, that the increased formation of connective tissue which renders the procedure necessary also fixes the stapes so firmly that intelligent manipulation can scarcely ■displace it, while the danger of inflicting such an injury is much greater if an attempt is made to divide the artic- ulation with the field of operation partially obscured by blood. Again, it frequently happens that the long pro- cess of the incus has become necrotic, and the articula- tion destroyed, so that no connection between the two ossicula exists. After the malleus has been removed, the stapedius muscle and incudo - stapedial articulation should be sought for and divided, unless this step has already (SUPPLEMENT.) been performed, after which the incus is sought for in the manner already fully described. It should be re- membered that as caries more frequently attacks the incus than any other ossicle, it may be partially or com- pletely destroyed. In the former case its removal is often difficult, while it is important to determine with certainty the latter condition, to avoid overlooking it if present, or a prolonged search if it is absent. It should also be borne in mind that the pathological process may have resulted in a bony union between the incus and mal- leus, and that both ossicles may be extracted together. In case both ossicles were intact, the operator could not over- look such an occurrence, but when one or both have been partially destroyed, careful inspection of the portions removed may be necessary, to determine simultaneous removal of the malleus and incus. The operator should then, upon extracting what he supposes to be the mal- leus, carefully examine it, in order to assure himself that the body of the incus is not attached thereto. If nothing but the malleus is found, the field of operation should be dried and inspected carefully. If no portion of the ossi- cle is seen, special attention should next be given to the posterior-superior segment of the field. It sometimes happens that the incision has not been close to the tym- panic ring in this region, a circumstance not easily recog- nized unless the parts are touched with the probe, when it will be found that a small curtain, or flap, of tissue remains undivided. A destruction of a small part of the ring at this point, as the result of caries, also gives rise to a similar appearance. It quite frequently happens that the incus is adherent to this flap, or completely con- cealed by it ; division of the soft parts close to the bony margin will, in such a case, bring the incus into view. If not found in this situation, the ossicle must be searched for with the incus-hook, in the manner already described while considering cases with intact membrana tympani. If all of these manipulations fail to bring the incus into view, or if it has not been felt, and the incus-hook can be carried freely, from behind forward, through the vault of the tympanum, the operator may decide that the ossicle has been destroyed by caries, or that it has suffered partial destruction, and the remaining portion has become amalgamated with the tympanic roof. If, however, it has been seen or felt at any time, its subsequent loss will mean dislocation into the mastoid antrum. The management of the stapes and the region of the round window is conducted in the manner already de- scribed. Any parts of the membrana tympani which may re- main in the lower portion of the fundus are to be re- moved with the knife and forceps if they are the seat of an hypertrophic process, as evidenced by considerable thickening and increased vascularity, as they may conceal areas of bony necrosis. If, however, the appearance of the lower portion of the membrane is healthy, we may feel certain that the bony structures are unaffected, and that there is no indication for the removal of the lower portion of the membrane ; in fact, its presence will hasten cicatrization. After drying the tympanum thoroughly we should next search for softened bone, both by inspection, which will often reveal here and there unhealthy granulation tissue indicative of the presence of dead bone, and with the probe, which should be made to explore thoroughly the entire inner wall of the tympanum, and should also be bent at a right angle at the tip, to enable the sur- geon to thoroughly explore the tympanic vault. The curette should then be freely used, and all granulation tissue and softened bone should be removed. For the atrium, the straight curette (Fig. 156, A) will be found serviceable, but for the vault the sharp spoons, bent at a right angle (Fig. 156, G), must be called into requisition. This procedure of thoroughly removing and curetting the entire cavity is of the greatest importance, and should be conducted with special care, as the ultimate success of the operation often depends quite as much upon this step as upon the removal of the ossicles. An area of softened bone in the vault of the tympanum will keep up the dis- charge for a long time, and render the result of the opera- 259 Ear Operations. Ear Operations. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. tion far from satisfactory. Hence quite as much attention should be given to this procedure as to the removal of the ossicula. After the bony walls of the tympanum have been thoroughly curetted, the margins of the tympanic ring should receive attention. It frequently happens, when long-continued suppuration has existed, that the margin of the ring becomes involved. This is particu- larly true of the superior and postero-superior mar- gin, on account of its intimate relation to the ossicula, and because it is the floor of a portion of the vault of the tympanum. Any roughness or softening in this region should be dealt with in the same manner as in the case of a similar condition in other portions of the tym- panum ; all diseased areas should be removed with the curette, and a portion of the margin may be excised with the cutting forceps if necessary. After all these steps have been carried out, the treat- ment of the case for the first few days does not differ from the after-treatment of cases in which the membrana tympani was originally intact. The subsequent treat- ment, however, must vary with each individual case. While the discharge continues profuse, the ear must be cleansed with the syringe and mild antiseptic solution in the hands of the patient twice daily, or more frequently if this is necessary to keep the parts clean. At the end of a week, if there is considerable discharge, I recommend the instillation of the solution of boric acid in alcohol twice daily, after thorough cleansing. Any granulation tissue must be destroyed as it appears, by means of chromic acid, silver nitrate, the actual cautery, or any other destructive agent. If it is found that all carious bone has not been removed, lactic acid, applied by means of a cotton-tipped probe to the affected areas, is frequently sufficient to determine the formation of healthy granula- tion tissue, and effect complete cicatrization. Tl|,e con- centrated acid should be used, and should be thoroughly rubbed into the tissues. As the discharge becomes almost nil, the syringe may be dispensed with, and the patient allowed to cleanse the ear by means of pledgets of cot- ton wound upon any convenient probe, while the sur- geon may once or twice weekly insufflate a small quan- tity of boric acid, dermatol, or other mild antiseptic or stimulating powders, until all discharge ceases. It has been my good fortune, in all such cases, to either stop the discharge completely or to diminish it so much that it has ceased to be a source of annoyance. The length of time which must elapse after the operation, before the discharge will completely cease, must vary with each case, depending upon the extent of the original involve- ment. In general, from six to eight weeks will probably be the average time ; in some cases cicatrization may be perfect at the end of two or three weeks, while in others the same number of months must elapse. The technique given above varies in some particulars from that advocated by other operators. In the division of the incudo-stapedial articulation the ordinary direction is to enter the knife behind the long arm of the incus and divide the articulation by cutting downward and forward. Those who advocate this plan of procedure say that the pressure of the instrument is then opposed by the action of the stapedius muscle, and danger of in jury to the stapes is avoided, while at the same time the resistance of the stapedius renders the di- vision more easy. My own preference is to completely sever the stapedius tendon before attempting to disarticu- late, as by this means the articulation is brought more per- fectly into view by the action of the tensor tympani and tense ligamentous bands located anteriorly. If the stape- dius muscle is not completely divided as the initial step, the stapes, after disarticulation, is frequently pulled out of sight behind the margin of the tympanic ring. After divi- sion of the stapedius, disarticulation by the above method may dislocate the stapes, although this is not likely to occur. It is often difficult, however, to insert the knife between the tympanic ring and the long arm of the in- cus, and for this reason I prefer the method given in my description of the technique of the procedure-that is, to pass the angular knife in front of the long arm of the in- cus, and open the articulation by cutting downward and {SUPPLEMENT.) backward against the pull of the tensor tympani; or to open the joint at its lower aspect, and then to sweep the knife through it by carrying it backward and forward. By either of these methods the joint is more easily opened than when an attempt is made to carry the angular blade behind the long process of the incus, which frequently lies so close to the tympanic margin that considerable violence must be used in introducing the knife. In removing the incus Kretschmann,67 who was the first to formulate the procedure for removing this ossicle, made use of a hook which, in addition to the curve shown in Fig. 156, H, was bent outward at the distal ex- tremity, so that when the instrument was in position, the tip rested upon that small shelf-like structure of the superior wall of the canal which affords lodgement for the incus. He introduced the instrument with the con- cavity directed backward and brought the incus into view by rotation backward and traction downward. While this manipulation is no doubt of great value in certain cases, the backward rotation seems more likely to carry the ossicle far out of reach toward the mastoid antrum, in case it is not secured at once, and the ma- nipulation of attempting to bring the long process into view by passing a hook behind it and rotating forward, has in my hands proved very satisfactory, while it cer- tainly lessens the danger of displacing the ossicle far backward. The teaching that it is not advisable to make a prolonged search for the incus, seems to me to be unwise. In non- suppurative cases careful manipulation will render fail- ure to secure it exceedingly rare. If it has not been dis- placed, it must occupy its original position, and failure to bring the long process into the field of vision will render it impossible for the operator to be certain of a complete division of the incudo-stapedial articulation ; or if the head of the stapes is seen lying free in the field it is certain that the incus has been displaced, and, by acting as a foreign body, may give rise to trouble if allowed to remain. If the long process is in view there is no diffi- culty in removing the ossicle. In purulent cases it is still more important that the os- sicle should be removed. Ludewig58 found the incus carious in eighty-five per cent, of the cases upon which he operated ; in my own twenty-nine cases of purulent otitis, the ossicle was carious in nineteen, while in eight it had been completely destroyed. Prolonged manipulation in searching for the ossicle has not, in my hands, in any way added to the reaction following the procedure, nor has it interfered with the results. I should therefore earnestly advise prolonging the operation for the purpose of securing the incus rather than to perform a rapid ope- ration and fail in its removal. Among the complications which may interfere with the operation, hemorrhage is the one upon which especial emphasis is laid. Since I have operated with the patient in the semi-recumbent position, rather than with the head low, annoying hemorrhage has been the exception, rather than the rule. If it is sufficient in amount to interfere with the manipulation, it can always be checked by tam- poning the canal firmly with cotton pledgets. It is im- portant, in executing this manoeuvre, that the first pledget of cotton should be carried well into the tympanic cavity, and also that the individual pledgets should not be too large, as upon withdrawing a large tampon, the force necessary for its removal is likely to lead to a recurrence of the hemorrhage. This objection is overcome if a number of small plugs are used instead of a few larger ones. It may be necessary to repeat the tamponing several times, but it will certainly effect its purpose if a little patience is exercised. A ten per cent, solution of cocaine is said to be useful in checking a slight oozing, but I have never had occasion to use it. Schmiegelow 59 has reported one case in which the hemorrhage following an attempt to excise the malleus was so severe that he was obliged to discontinue the attempt. My own experience with intra-tympanic operations, more especially the particular class now under discus- sion, has led me to consider them remarkably free from risk. It is possible, however, for unpleasant sequela: to 260 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Ear Operations. Ear Operation**. follow such procedures. Among these the most impor- tant are injury to the facial nerve, deafness due to im- paction of the stapes into the oval window, injury to the labyrinth from accidental removal of the stapes, either by direct traumatism, or by infection, etc., and inflamma- tion of the mastoid process. The facial nerve is occasionally injured by the incus- hook. The cause of this accident is to be found either in a congenital defect in the Fallopian canal, or in the partial or complete destruction of its wall as the result of disease. With the exercise of a little care in manipulating the in- cus-hook, bearing in mind that great force is not neces- sary to displace the ossicle, the accident can usually be avoided. If the facial nerve is touched by the instru- ment, the twitching of the face immediately warns the operator of what has occurred, and subsequent caution will prevent serious injury. In one of my own cases, Switching of the face was noticed while attempting to locate the incus, and upon recovery from anaesthesia there was marked paresis of the corresponding side of the face ; the facial nerve had been slightly involved before the operation, but after this the signs were much more pronounced. Daily faradization for about ten days was followed by complete recovery. Facial paralysis con- secutive to a similar operation also occurred in a case re- ported by Ludewig.60 Complete loss of hearing following removal of the ossicles has occasionally occurred. In a case reported by Buck 61 the operator believed that the stapes had been impacted in the oval window during the operation. In one of Ludewig's62 cases the stapes was accidentally re- moved and the hearing was entirely lost, while Wurde- inann63 reports a case of excision of the malleus in a pa- tient about sixty years of age, in whom total deafness followed the procedure. The stapes was not interfered with in this case, and as there was persistent vomiting upon recovery from the anaesthetic, it is supposed that this led to a labyrinthine hemorrhage causing a com- plete loss of the power of audition. • It seems mani- festly unfair to record this as due to the operation, as the same accident might happen after anaesthesia for any other purpose. As far as accidental removal of the stapes is concerned, I cannot understand how it could have re- sulted in the total loss of the power of audition in Lude- wig's case. The author expressly states that there was no evidence of purulent inflammation of the labyrinth from infection, and if this can be excluded, the only other event possible would have been direct injury of the labyrinth after the removal of the ossicle, which at the hand of so experienced an operator as Ludewig cannot be thought of. We know, furthermore, that the removal of the stapes alone is not followed by impairment of the hearing, even if considerable perilymph is lost. I am in- duced to class this case as one in which the result can hardly be attributed to the operation. I have twice removed the stapes unintentionally : once, when there was ossification of the incudo-stapedial joint, the incus-hook removed the stapes, the incus being subse- quently secured; in a second case, no force being used, the incus-hook, swept upward and forward, brought away the stapes, which upon examination proved to be necrotic. As no force was used here, I believe that the stapes had already been detached from the fenestra ovalis by long- continued suppuration. In both the above cases the hear- ing was not impaired, and in one it was improved. With reference to severe mastoid inflammation as a sequel to the operation, Randall64 reports a case in which this occurred ; the observer remarks that the mastoid empyema may have been the result of an attack of in- fluenza, which was almost epidemic at the time, but is inclined to believe that as the incus was not found during the operation it had been displaced toward the mastoid antrum, and by obstructing the escape of secretion gave rise to the mischief. That such accidents must occasion- ally happen no one can deny, but that they are very rare, so rare in fact that they can almost be looked upon as curiosities, is also true. This case also adds weight to the opinion already expressed as to the importance of re- moving the incus. Among my own cases there has not (SUPPLEMENT.) been a single instance in which unpleasant symptoms have followed the operation, with the single exception of giddiness, and this has been severe in live cases only. My own operations of ^excision of the ossicles" now number forty. In eleven cases the membrana tympani was intact, and of these two had previously suffered from purulent inflammation of the middle ear, ending in com- plete recovery. In ten instances the operation was done for the improvement of the hearing, being performed once for the relief of tinnitus, although the hearing was considerably impaired. In ten of these cases the malleus and incus were removed and all adhesions divided. In one case the incus was not found. Of this number great improvement followed in six cases, moderate improve- ment in four cases, while in the case in which the oper- ation was performed for the relief of tinnitus, the hear- ing was not improved and the tinnitus was not relieved. Of the cases much improved, in three a permanent perforation remained as the ultimate result of operation, although in two it was necessary to perform secondary operations under cocaine anaesthesia to secure this. In two the membrana tympani reformed completely, but the hearing remained so good that secondary removal was not required. In the remaining case the hearing was much improved so long as an opening remained in the membrana tympani, but returned to its original condition when this became obliterated. The patient passed from observation, as she resided in a distant city, and I have been informed that the physician in attendance has not been able to secure a permanent opening. In this case the incus could not be found, but the mastoid had been chiselled for an empyema one year before, and, as the ossicle was not seen during the operation, I am inclined to believe that it had been displaced during the treatment of the previous suppurative inflammation. In most of these cases an interval of many months has elapsed since the removal of the ossicles, and the improvement con- tinues. It is only fair to say, however, that even when a permanent opening has been secured the hearing is not as good after the cavity has become completely dry, as immediately after the operation when the parts are moist. In those cases where the improvement continues, not- withstanding the complete reproduction of the mem- brana tympani, the hearing distance has remained as good as before the complete closure of the opening, and hence there has been no indication for further interfer- ence. Of the cases slightly improved, in one the receptive apparatus was known to be involved before the operation, and only slight improvement was hoped for. In the sec- ond the stapes was anchylosed, and could not be mobil- ized (in a similar case I should now remove it complete- ly) ; in the third, the operative treatment was resorted to at the request of a colleague, and the exact condition of the receptive apparatus was not known. In the fourth case, although the hearing was only slightly improved, tinnitus, which had been present, disappeared, and the hearing upon the opposite side became very much better. To this last fact I wish to call special attention, as it con- firms the observations of Cholewa, already alluded to in considering tenotomy of the tensor tympani muscle. I have found this true in more than this one case, and on one occasion, after subjecting the opposite ear to opera- tive treatment, this improvement disappeared. Since this time I have exercised great care in advising the em- ployment of surgical measures upon the better ear, when this has improved after an operation upon its fellow. Whether the phenomenon is to be explained upon the theory advanced by Gelle,*5 to account for the modifica- tion of the hearing upon one side, when the air in the external meatus of the opposite side is compressed, or whether it depends upon the fact already proven by Edinger,66 that the auditory nerve of one side receives fibres from the nucleus of the opposite side, I am not prepared to state. The influence which a pathological process in one ear exerts upon the functions of the other lias long been recognized, and it is strange that more attention has not been given to this point, in the hope that one ear at least may remain useful as the result of 261 Ear Operations. Ear Operations. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) the early treatment of the affection upon the opposite side. The observations of Wharton-Jones,61 Politzer,68 Urbantschitsch69 and others prove conclusively that this "crossed action" exists, and it certainly deserves more consideration than it has received. It carries with it the suggestion, however, that in cases where the conducting apparatus of both ears is affected, the receptive appara- tus remaining intact or nearly so, surgical interference shall be first tried upon the poorer ear, and the effect be noted not only upon the ear operated upon, but also on the opposite side. From certain facts, I am inclined to believe that the rule is also applicable to cases in which the impairment upon the more affected side, or upon both sides, is the result of a chronic purulent otitis. Cer- tainly I grow more and more cautious in advising opera- tion upon the better ear, until considerable time has elapsed after the operation upon its fellow. The above results, while not as gratifying as might be desired, still place the operation among the means which it is the duty of every otologist to advise when other measures fail. In this line Lucae10 has probably operated upon more cases of chronic proliferative otitis media than any other single surgeon. It should be men- tioned, however, that although he selected his cases with great care, and only operated when careful tests with the tuning-forks indicated a lesion of the conducting appara- tus, he was content in the large majority of cases to leave the incus. As already stated, I believe that the removal of the incus is very important. Lucae reports 53 op- erations, with the following results : In 9 there was marked improvement ; in 19 slight improvement; in 18 no improvement ; while in 7 the hearing was impaired by the operation. Of the 9 cases in which the improve- ment was marked, the membrana was completely repro- duced in 3, while a permanent opening remained in 14 of the cases in which there was only slight improve- ment. In these 53 operations the incus was removed in but 6 cases. In cases where the membrana tympani has been par- tially destroyed, most of my own operations have been performed primarily for the relief of the purulent dis- charge, the hearing in a large number not being so seri- ously impaired that operative interference was sought for this cause alone. In cases of this character, then, our report must show the effect upon the suppurative process and also upon the function of the organ. When the operation is undertaken for the improvement of the hear- ing, an opinion as to the probable result should be based upon the result of an examination with the tuning-forks, according to the suggestions already given. It should be remembered, however, that the general results of oper- ative procedures are better in such cases than when the inflammatory condition has been of the proliferative variety. Another fact which it is important to con- sider is, that when the hearing is good, surgical interfer- ence for the relief of purulency is not likely to impair the function of the organ. Thus in 29 cases of this char- acter operated upon by the writer, in but one case has the hearing been impaired, and from a knowledge of the patient, and careful examinations, it is more than proba- ble that this impairment is simulated. Of these 29 operations, in 18 cases the hearing improved, and in 10 cases it remained the same as before operation. In but two of these last cases was the operation performed for the sole purpose of improving the hearing, and in one an unfavorable prognosis was given, and surgical treat- ment was resorted to only at the earnest solicitation of the patient. No improvement followed in this case, con- firming in every way the opinion based upon the func- tional examination. On the contrary, in the other case the examination indicated that the removal of the ob- structing conducting apparatus should improve the hear- ing. In this instance removal of the malleus, incus, and stapes, and the section of dense adhesions over the round window improved the hearing in the ear operated upon to such an extent that with the opposite ear tightly closed, conversation could be understood, this being impossible before the operation. The hearing in the opposite ear improved at the same time, but as other factors may have influenced this, it cannot be certainly credited to the operation upon the other side. Of the 29 cases the discharge stopped completely in 15 ; it was greatly reduced in quantity in 9, while 5 cases are still under treatment. In 14 cases the malleus and incus were removed, and in 4 the malleus, incus, and stapes. In 2 cases the ossicles had been completely destroyed by caries and the tym- panic cavity was thoroughly curetted. In a single case the stapes alone was present, and as the head was carious this was removed, the foot-plate being left in position. In another case the malleus and incus were firmly adher- ent to the walls of the tympanum and could not be re- moved, but by the aid of the curette the carious areas were scraped away and the case was completely cured. In 7 cases the malleus alone was removed ; in 5 of these the incus had undoubtedly been completely destroyed by caries ; in 1 case it was overlooked during the operation, and subsequently found but not removed, while in the other case I may have displaced it into the mastoid an- trum, as I felt certain of its presence early in the opera- tion, but finally failed to secure it. Ludewig11 reports the results of removal of the malleus and incus in 75 cases, in 42 of which the discharge was cured as the result of the operative interference, while in 16 it continued after the operation. In 9 cases the pa- tients were still under treatment at the time the report was written. In 5 cases no report was obtainable as to the result of the operation. Death occurred in 3 cases, but in no instance could it be traced to the operation. Grunert,12 in 28 cases operated upon, reports 13 cured. In 13 the discharge continued, and 2 cases were still un- der treatment at the time of writing. When it is remem- bered that the cases above reported represent those which have resisted all other means of treatment, there can be no question as to the advisability of undertaking the operation. The great danger is that the surgeon may mislead the patient as to the probable result of the pro- cedure. It is seldom possible, in a given case, to assert positively that suppuration will cease completely after the operation. If the ossicles alone are carious, then their removal will put an end to the affection, but when the condition has existed for a long time it is quite pos- sible that the adjacent tympanic walls have become in- volved, possibly in such remote situations as to be inac- cessible to instruments. In such an event the procedure is advisable, but a complete cure cannot be promised. The indication for operation in such an instance lies in the fact that by the complete removal of the contents of the vault of the tympanum free drainage is afforded, and the danger of pus becoming confined in this space is re- duced to a minimum. For this reason particularly, I insist upon the removal of the incus, as its presence in- terferes with drainage, and moreover it is the ossicle most frequently affected. Of the 75 cases of purulent otitis operated upon by Ludewig this ossicle was found carious in eighty-five per cent. Among my own cases I can re- member no instance in which a healthy incus was removed. The probe sometimes enables us to determine the extent of the caries, but more frequently we are obliged to be satisfied with the simple fact of the presence of softened bone, without being able to define the extent of the area involved. As to the question of impairment of the hearing when the procedure is adopted for the relief of suppuration, the hearing remaining fair, the results given above indicate that in very few instances has the hearing been rendered poorer by the operation. Out of Ludewig's 75 cases this occurred 6 times. In view of the fact that all portions of the tympanic cavity are not accessible through the canal, and in order that the procedure may be more directly under the eye of the operator, Stacke73 prefers to expose the parts by external incision. His method is as follows : An incis- ion is made down to the bone, just behind the attach- ment of the auricle, and, following this in direction, from the tip of the mastoid process to a point just above the tragus. With a small elevator the cartilaginous meatus, and as much as possible of the periosteum of the osseous 262 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Ear Operations. Ear Operations. canal are separated from the bony parts. In this manner the superior, posterior, and inferior aspects of the margin of the bony meatus are exposed, the soft parts being held only anteriorly. The soft parts are now divided trans- versely downward and forward, as deeply in the canal as possible, and by traction upon the auricle the funnel- like mass is pulled out of the bony meatus. The perios- teum of the anterior wall is next divided, when the en- tire cartilaginous meatus and a part of the thin cutaneous lining of the osseous canal can, by traction forward, be so displaced as to leave the margin of the bony meatus entirely free. The tympanic structures can then be seen by direct light and all affected parts removed. By means of the gouge, the superior and posterior margins of the inner extremity of the bony meatus can now be removed, and the stapes being protected by a proper instrument, the curette can be freely used in the vault of the tympa- num, the manipulations being under ocular inspection. In this manner the entire cavity can be completely cleared of necrotic tissue, and the mastoid antrum even may be exposed. In case there is evidence of serious mastoid involvement the original incision is made a little farther back than directed, and the antrum entered in the ordi- nary way, after which the tympanic cavity is exposed and treated in the manner above described, and finally the canal and the artificial opening into the antrum are thrown into one. In this way the middle ear, mastoid cells, and canal are converted into a single cavity, all parts of which are easily accessible through the external meatus. After the operation the cartilaginous canal is replaced, and a drainage-tube, completely filling its lumen, is passed into the bony meatus, thus preventing displace- ment. The external incision is sutured, all drainage be- ing through the meatus. In cases where the mastoid antrum has been freely exposed, it is usual to incise the soft parts of the canal longitudinally along the posterior aspect, and press the flaps thus formed backward into the cavity, holding them in position with tampons of iodo- form gauze. In this manner a cutaneous lining for the mastoid antrum is secured. The same result is attained by cutting a quadrilateral flap from the cutaneous canal and carrying it into the antrum. Stacke seems enthusiastic over this method of opera- tion in cases of caries of the tympanum, but my own ex- perience would lead me to employ it only in the most un- promising cases, and 1 should then be induced to first try the effect of excision of the ossicles in the ordinary man- ner. If there is mastoid involvement there can be no question as to the efficacy of the procedure. It should be borne in mind that the amount of space gained by ex- posure of the bony meatus is not as great as might be supposed, and unless the caries is extensive enough to make a thorough opening of the mastoid antrum desira- ble, a surgeon accustomed to operating through the canal will do quite as well by employing this method as the one above described. Stapedectomy.-Accidental removal of the stapes has already been referred to as having occurred during the removal of the malleus and incus at the hands of differ- ent operators. Kessel14 partially detached the foot-plate from the oval window in one of his cases. A quantity of perilymph was lost, but no serious consequences fol- lowed. Later, the experiments of Botey 15 proved that stapedectomy was not a serious operation, and might be beneficial in certain cases. It remained, however, for Jack16 and Blake1' to establish the removal of this ossi- cle as a distinct surgical procedure. The results reported by Dr. Jack are certainly very promising, and it is to be hoped that subsequent observations may demonstrate its utility beyond a shadow of a doubt. I have already given my own views upon the question of removal of the stapes alone, having clearly stated that they are not based upon any extended personal experience with the opera- tion. On theoretical grounds, it seems that perhaps the removal of the entire ossicular chain might be preferable, but experience alone can determine this fact. The procedure would be applicable to cases in which the hearing was impaired as the result either of non-sup- purative inflammation, or of a suppurative inflammation which had been cured, leaving the stapes in an accessible position. If suppuration is present, then removal of all the ossicles would be the proper operation. Steps of the Operation, (a) When the membrana tym- pani is intact, the incudo-stapedial articulation is exposed either by a curved incision in the postero-superior quad- rant, close to the attachment of the membrane to the tympanic ring, or by a triangular incision in this situation, or by the incisions already described in the operation of exploratory myringotomy. After the incudo-stapedial articulation is brought into view the stapedius muscle should be completely divided ; the incudo-stapedial artic- ulation is then severed, and the long arm of the incus pushed forward so as not to interfere with the subsequent steps. If the presence of the incus still interferes with the separation of the stapes the long process may be seized with the forceps, and the ossicle removed. The stapes is then freed from adhesions binding it to the oval niche by means of the sharp straight knife, and is removed by gen- tle traction with the forceps, or by a hook passed between the crura. It is important to sever the stapedius muscle completely before disarticulation, as otherwise, after dis- articulation, the stapes may be pulled out of view. If the foot-plate is found anchylosed, this condition may be treated in the manner already suggested ; although in such a case, as the parts would be subjected to more vio- lence, it is probable that removal of the malleus, incus, and membrana tympani would diminish the chances of reaction after the operation. Blake18 has advocated the performance of this opera- tion under cocaine anaesthesia, a ten per cent, solution be- ing first introduced into the tympanum, through the cath- eter. After the first incision through the membrana tym- pani, the direct application of the cocaine solution to the middle ear, by means of a cotton-tipped probe, renders the subsequent steps painless. In three cases of this kind I have been able to clear the oval niche in the above man- ner, no pain being experienced after the first incision. I am inclined to think that the introduction of cocaine through the Eustachian tube has very little effect in miti- gating the pain of the first incision, and if a very sharp knife is used this is never severe. After this no pain need be felt if the cocaine is carefully applied. My re- sults have been very satisfactory, but I am inclined, at present, to employ this method more as an exploratory than as a therapeutic procedure, for the purpose of de- termining how much improvement can be hoped for by any operation upon the conducting mechanism. When, for any reason, general anaesthesia is objected to-unless great improvement can be assured,-the measure above detailed is of great value in deciding this point; but under general anaesthesia, much more exact work can be done if the membrana and two larger ossicles are first removed. After the removal of the stapes the flap is replaced and the meatus is occluded by a plug of antiseptic cotton, which is left in position for several days unless inflamma- tory symptoms supervene. The wound usually heals in a few days, and in no case has the reaction been severe. (b) When the membrane is partially destroyed, the stapes or the incudo-stapedial articulation may be already in view ; but if they be not visible, the appropriate incision for the exposure of these parts will vary in each case, after which the technique given above is to be carried out. In two cases operated upon under local anaesthesia, the stapes being clearly in view, extraction was easily accomplished and the results were flattering, in one in- stance the hearing for a low whisper increasing from seven to thirty feet; here the entire stapes was removed intact. In the second case only a portion of the ossicle was secured, yet the improvement was considerable. It is well to bear in mind that even slight hemorrhage will render the removal of the stapes difficult, and when this region is covered by dense structures which bleed freely when incised, it may be necessary to remove the malleus and incus and remains of the membrane to secure a suit- able field for the performance of stapedectomy. The after-treatment may be the same as in the preced- ing class of cases. It is well, however, to inspect the 263 Ear Operations. Electro-Thera p. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) ear at the end of twenty-four hours, and if signs of in- flammation are present, to cleanse it frequently with a mild antiseptic solution. If, however, the parts are per- fectly dry, they should not be disturbed, for fear of inter- fering with the healing process. Edicard Bradford Dench. 1 Die Krankheiten des Ohres, Berlin, 1889. p. 32. 2 Lehrbuch der Ohrenheilkunde, Wien, 1890, pp. 43 and 438. 3 Transactions of the Medical Society of the State of New York, 1872. 4 Transactions of the American Otological Society, 1892, vol. v., pt. 2, p. 314. 5 Revue de Laryngologie, 1S00, vol. xi., p. 119. 6 Archives of Otology, voL xix., p. 151. 7 Philosophical Transactions, London. 1801. 8 Archiv fiir Ohrenheilkunde. vol. v., p. 270. 9 Contribuzione allo Studio della Medicena operatoria dell' Orrechio, et'-., Roma, 1878. 10 Wien. allg. med. Ztg., 1803, p. 305. 11 Monatsschrift fiir Ohrenheilkunde. vol. i., p. 31. 12 New York Medical Record. March 27, 1875. 13 Verhandl. des X. Internat. Congress, Berlin, 1892, vol. iv., pt. 11, p. 113. 14 Diseases of the Ear, Am. edition, Phil., 1883, p. 375. 15 Wien. Med. Woch.. 1871, p. 9. 16 Allg. Wien. med. Ztg., 1873, p. 2. 37 Ibid., 1871, p. 384. 48 Archiv fiir klin. Chir., vol. xiii., p. 122. 12 Lehrbuch der Ohrenheilkunde, Wien, 1888, p. 552. 20 Topographische Anat. 21 Berlin, klin. Woch., 1871, p. 574. 22 Transactions of the American Otological Society, 1873, p. 81. 23 Ibid., 1874, p. 577. 24 Archiv fiir Ohrenheilkunde, vol. xi., p. 127. 24 Ibid., vol. xi.. p. 124. 26 Archives of Otology, vol. xix., p. 151. 27 Archiv fiir Ohrenheilkunde. xxxii., p. 85. 28 Lehrbuch der Ohrenheilkunde, Wien, 1888, p. 562. 22 Lehrbuch der Ohrenheilkunde. Wien. 1891, p. 58. 311 Diseases of the Ear, N. Y., 1883, p. 185. 31 Loc. cit. 32 Loc, cit. 31 Loc. cit. 34 Diseases of the Ear, Am. edition, Phil., 1883, p. 379. 34 Op. cit., p. 562. 36 Loc. cit. 37 Archives of Otology, vol. xx., p. 13. 38 Archiv fiir Ohrenheilkunde, vol. xix., p. 85. 33 Transactions of the New York State Medical Society, 1872. 40 Monatsschrift fiir Ohrenheilkunde, vol. i., p. 22. 41 Archiv. fiir Ohrenheilkunde, vol. xxii., p. 122. 42 Revue de Laryngologie, 1890. p. 49 et seq. 43 Transactions of the American Otol. Society, vol. v., pt. 2, p. 311. 44 Archiv fiir Ohrenheilkunde, 1874, vol. viii., p. 230. 44 Ibid., vol. xxii., p,.128. 46 Ibid., vol. xi., p. 199. 47 Ibid., vol. xiii., p. 69. 48 Ibid., vol. xxii., p. 228. 42 The Ear and its Diseases, N. Y., 1888, p. 385. 40 Archiv fiir Ohrenheilkunde, vol. xxv., p. 165. 41 Ibid., vol. xxvi., p. 115. 42 Ibid., vol. xxix., p. 241 ; vol. xxx., p. 263. 43 Ibid., vol. xxxiii., p. 207. 44 Transactions of the American Otological Society, 1892, vol. v., part 2, p. 283. 44 Ibid., p. 306. 47 Loc. cit. 47 Archiv fiir Ohrenheilkunde, vol. xxv., p. 165. 48 Loc. cit. 43 Hospitals Tidende, 3, R. V., Nos. 22-26. 40 Archiv fiir Ohrenheilkunde, vol. xxix., p. 259. 61 A Manual of Diseases of the Ear, New' York, 1889, p. 328. 42 Loc. cit., p. 260. 43 Journal of the American Medical Association, October 22, 1892 (re- print). 64 Transactions of the American Otological Society, 1892, vol. v., pt. 2, p. 325. 65 Archiv fiir Ohrenheilkunde, vol. xxviii., p. 58. 46 Anat. Anzeig., 1887, Nos. 6 and 8. 47 Frank's Ohrenheilk., 1855, p. 133. "8 Diseases of the Ear. Am. edit., Phila., 1883, pp. 346 and 688. 69 Lehrbuch der Ohrenheilk., Wien, 1890, p. 416. 70 Archiv fiir Ohrenheilkunde, vol. xxii., p. 233. 71 Ibid., vol. xxix., p. 241: vol. xxx., p. 263. 72 Ibid., vol. xxxiii., p. 207. 73 Ibid., vol. xxxi., p. 201. 74 Ibid., vol. xi.. p. 199. 76 Am. Journ. of the Med. Sciences, vol. ci., p. 632. 76 Trans, of the Am. Otol. Society, 1892, vol. v., pt. 2, p. 284. 77 Ibid., p. 306. 78 Archives of Otology, vol. xxii , p. 78. EASTBOURNE. One of the most popular seaside re- sorts in England. It is situated on the Sussex coast, between Brighton and Hastings. Eastbourne is only sixty-five miles from London. Dr. Yeo (" Climate and Health Resorts ") speaks as follows concerning the merits of this place : " The roads and streets have been skilfully planned and laid out on a uniform system, so as to secure abundance of space, free ventilation, and the picturesque planting of trees throughout the streets of the town. Moreover, the streets and other residential parts of -the town are not all huddled together close to the shore as in some resorts, but spread out over a considerable tract of land extending toward the magnificent downs behind the town, for three- quarters of a mile or more from the sea-shore. This is a great advantage, for it enables the physician to make use of Eastbourne for many patients who are not comfortable when close to the sea, and for others to whom the excit- ing effect of strong sea-air might prove injurious, while the pure, bracing air of the downs, which are so readily accessible from the inland part of the town, might be advantageous. " The sanitary arrangements are as complete as they can well be made, and an abundant supply of pure, soft water is obtained from wells sunk through chalk into the green sandstone. Every house has a constant supply. The sewers are freely ventilated, and the sewage flows into the sea at a point three miles away to the east, where the tides carry it away without the chance of its return- ing to the bay. The death-rate is low, the annual aver- age for the last three years being 14.18 per 1,000." The same author also states that during the summer he has known phthisical patients to do extremely well at Eastbourne, especially if they begin their stay by living away from the sea. Cases of torpid scrofula, of slow convalescence from surgical operations or injuries, cases of anaemia and general want of tone, cases of depressed function, nervous or digestive, are all suited to this place. In houses built to the west of the town, and with rising ground between them and the east, the winter tempera- ture is not unpleasantly low, and there is more than the average amount of sunshine. But those parts of the town which are unprotected from the east suffer much from the prevailing winds in spring. The country surrounding Eastbourne is attractive, and the place undoubtedly deserves the growing favor with which it is regarded in England. The accommodation offered in numerous hotels and lodging-houses is fairly satisfactory. Edmund C. Wendt. ELECTRO-THERAPEUTICS. The advances in elec- tro-therapeutics since the first issue of this work have been important. In no department, perhaps, has there been more activity than in the relation of electricity to the diseases of women. The most extravagant statements have been made by extreme partisans as to the extraor- dinary efficacy of the new methods in dissipating fibroid tumors, and in curing almost every variety of uterine dis- order. There is a large class, however, who are ex- tremely pessimistic in their views as to the therapeutic properties of electricity, and who deny that it possesses any considerable value in gynecology. When, however, a man possessed of the experience of Keith, of Edinburgh, can say that many are prejudiced against electricity because they consider it quackery and know nothing about it, that his confidence in its power to relieve disturbing symptoms of uterine fibroids and to cure many chronic inflammatory conditions of the pelvis continues to increase, and that he has no fear for the future of electricity, we have testimony that must greatly outweigh assertions and opinions that are purely nega- tive. In a recent and animated discussion of the subject at the Societe de Chirurgie of Paris, equally favorable opin- ions were advocated by the majority of those engaged in the debate ; and the strength of these opinions was accen- tuated by the fact that the majority of those who hold them are signally distinguished as laparotomists. A word in regard to the faradic current in its relation to diseases of the uterus. Its effects are mainly me- chanical, and according to the construction of the helix and the length and thickness of the wire do we measure its action on the muscular tissues of the uterus. Applied directly to the uterus of animals in physiological ex- periments, the organ visibly contracts, although not to 264 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Ear Operations. Electro-Tlierap. such an extent as the intestines, which, on application of the electrodes, can be seen to draw up gradually, very much after the manner of a woman's work-bag. Its ac- tion on the smooth muscular fibres of the human uterus, when applied therapeutically, is analogous to that of ergot, although manifestly more prompt and energetic, especially under the influence of the positive pole, which possesses a much greater power over the involuntary muscles than the negative. It is a current of alternation, of constant closing and breaking ; hence it produces a sort of interstitial massage, heightening the activity of the circulation, accelerating absorptive processes, and influ- encing favorably the nutrition of parts. Faradization, by its power over muscular contractions, sensibly increases temperature. According to the chem- istry of the development of heat during muscular con- tractions, muscular work is the result of the decompo- sition of nitrogenous substances, and the muscles grow at the same time that they work and develop heat. That the value of the faradic current is more limited than the galvanic in the treatment of uterine disease must be im- mediately manifest to all who appreciate the difference between them ; but in some conditions which come within the range of its physical and physiological activities, the faradic current may exceed in efficiency the galvanic. By its direct excitation of the smooth muscular fibres of the uterus we are enabled to combat that stasis of the circulation which is the beginning of uterine inflamma- tion. By this method we obtain a veritable interstitial mass- age,'that is potent in overcoming the primary inertia of the organ and in preventing an arrest of retrograde meta- morphosis, through which comes sub-involution with its inevitable and persistent sequela}. In its purely local influence, then, faradization would seem to be preventive rather than curative, so far as it relates to uterine dis- ease ; or rather it is preventive, so far as concerns the latter conditions of uterine engorgement, and curative only in its initial stage. When the processes that go to make up the graver and more chronic diseases of the uterine parenchyma and its lining membrane have con- tinued a long time, as is usually the case when medical interference is sought, the simple mechanical effects of the faradic current would be altogether misdirected. Here we resort to the electrolytic influence of the gal- vanic current, or rather to what may be more fitly termed its galvano-chemical cauterizing effects through which are destroyed the granulations and fungoid growths of the diseased mucous membrane. By the interpolar in- fluence of the current we correct a languid nutrition and hasten the absorption of exudations. Just as the positive pole of the faradic current has an action of its own, superior in effect to the negative in causing uterine contractions, so the positive pole of the galvanic current has an action peculiar to itself. Here oxygen is generated and acids accumulate which render this pole directly haemostatic. It is, therefore, indicated in all hemorrhagic conditions, as well as where there ex- ists an excess of the natural secretions. Owing, also, to the greater retractibility of cicatrices following positive galvano-cauterization, the results are more lasting in the treatment of fungoid growths, or vegetations, than could possibly be the case with the negative pole. At the negative pole, on the contrary, the alkalies pre- cipitate, imparting caustic properties and causing effects fluidifying rather than haemostatic. The absorptive pro- cess is undoubtedly more active under this pole than under the positive, and is especially indicated in indurated chronic metritis and for the resolution of fibroids. That the galvanic current often completely dissipates fibroid tumors of the uterus few will, I believe, affirm. In the treatment of scores of fibroids on the external sur- face of the body, I have never yet seen a single instance where one of them completely disappeared. As a rule, the reduction is comparatively slight, unless suppuration is excited, which may be easily done. External fibroids are simply unsightly, and for this reason we desire to be rid of them ; ami as it is not possible to obtain more than a reduction in size, the knife is to be preferred, and elec- (SUPPLEMENT.) trolysis has fallen into disuse. We treat uterine fibroids, on the contrary, not because they are unsightly, but be- cause associated with them are a train of symptoms some- times of the most distressing character. These symp- toms can, it is believed, be relieved to a greater or less, extent by electrolysis, and sometimes so completely re- lieved as to lead to the belief, so far as the patient is con- cerned, that the tumor has entirely disappeared. In the great majority of cases, however, it is simply a symp- tomatic cure. The tumor is still there, but reduced in size, and so far as pressure upon surrounding parts is concerned, or any hemorrhagic tendency, it is entirely harmless. I am a firm believer in the great utility of the galvanic current in the thickenings and infiltrations re- sulting from inflammation of the pelvic cellular tissue. For the absorption of old exudations in other parts of the body, this treatment has long been used with excellent results, and in pelvic exudations the results are even better. I have seen the treatment, persistently carried out, result not only in the absorption of large pelvic de- posits, but in the cure of the most obstinate and severe sciatica, and in the restoration of power to partially para- lyzed limbs. In such cases, both sciatica and paralysis are caused, undoubtedly, by pressure upon the pelvic floor, and can be relieved only through the dissipation of the morbid products. There are two methods of action through which we obtain results from electrolysis. The first and most ap- parent is the absolute destruction of tissue which takes place at the time of treatment. Some suppuration may follow, and thus, by actual loss of substance apparent to the sight, the tumor decreases in size. If, however, these were the only active forces in the electrolytic pro- cess, the method would lose much of its effectiveness. If this be not so, how can we account for the many well- attested cases where morbid growths have entirely dis- appeared under simple external applications ? Herein is the difference between the electrolysis of organic and that of inorganic substances. In the electrolysis of inorganic substances the effects cease as soon as the current ceases, the substances remaining in the condition in which the current left them. The electrolysis of organic substances, on the contrary, starts a process that continues long after the current ceases to flow. Besides this subsequent effect, the current penetrates the tissue and induces various important changes beyond and beneath the eschar, and these combined agencies do far more, in many cases, to diminish the size of morbid growths and prevent further development than an actual destruction of a limited area. Hitherto one important defect in the treatment of vari- ous uterine diseases, and especially morbid growths, has been the use of too weak currents. This has been due partially perhaps to a commendable caution in dealing with an agent so potent as electricity, but more to our lack of definite knowledge of the amount of current strength needed to accomplish certain ends, and our in- ability to readily command more than a certain limited working power from the apparatus in ordinary use. A third obstacle was the absence of any instrument by which the current could be accurately measured. The improved milliamperemeter has overcome this difficulty, and is indispensable in all electro-surgical operations, be- sides being a vast aid in all electro-medical applications. Instead of a strength of current equal to only ten to thirty milliamperes, which was commonly used, and which indeed was all that could be obtained from the appliances in use, it is now no uncommon thing to use currents of even several hundred degrees of strength. For this purpose the external electrode must not only be material of the best conduction possible, but of suit- able size and sufficiently flexible to be perfectly adjusted to every inequality of surface which it covers. The strength of current from a given number of cells is in proportion to the size of the electrodes, and therefore, when from a certain number of cells it is desired to get the greatest strength possible, the electrodes should be of the largest size convenient for our purpose. As to the quality of the electrodes, sponges are too bulky and offer too great resistance when our object is strength of cur- 265 Electro- Therapeutics. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) rent. As a substitute Apostoli suggested sculptors' clay held in place by gauze. This material holds moisture fairly well, can be adapted closely to the skin, and is undoubtedly an ad- mirable electrode. An electrode that answers well, how- ever, for the ordinary purposes of local application con- sists of layers of absorbent cotton, spread smoothly over flexible metal backs of varying size. The material is easily obtained, and is so inexpensive as to warrant a fresh supply for every patient. In all this, reference is of course made to the exter- nal electrode, which, in the treatment of the uterus and its appendages, is usually placed upon the abdomen. The internal electrodes consist mainly of a small metal bulb attached to a long insulated stem, for applications to such portions of the uterus as can be reached per vaginam; of metal probe electrodes, for intra-uterine applications ; and of needles of varying size, for electro- puncture. It should ever be borne in mind that when the positive pole is applied to the interior of the uterus, the metal should be of some non-oxidizable metal, as platinum. In the electrolytic treatment of fibroids a good milliamperemeter is a necessity. The external electrode, whether of sculptor's clay or other material, is first placed upon the abdomen, and may be pressed upon and kept in position by the hands of the patient herself. An insulated needle is now introduced into the tumor either through the vagina or through the abdominal walls, and the current gradually increased without interruption until the required strength is obtained, which may vary from one to two or three hundred milliamperes. The du- ration of the seance may be from five to ten minutes, and even longer if the patient bears the operation well. Too much stress cannot be laid upon the necessity of an entire absence of any interruption of the current during the treat- ment. In trivial operations, where the tension is slight, this is not of such vital importance, but in the treatment of conditions where a very great strength of current is necessary, a shock would decidedly disturb a patient of even strong nerve, and inflict serious damage on many. No one would willingly do this, but there are so many possible disturbing factors to the steady working of the current, that from my personal knowledge of the con- dition in which physicians too frequently keep their electrical apparatus and appliances, these interruptions are liable to occur at any moment and when least ex- pected or desired. It is to be doubted whether many patients would submit to a second trial after having received a shock from a current strength of two hun- dred milliamperes. While the treatment of fibroid tumors by electro- puncture is liable to be attended with more unpleasant results, it is no more efficient in many cases of uterine myomata than the more simple method of intra-uterine applications ; and in our opinion the latter method should, as a rule, be attempted before resorting to puncture. If, however, in any case of fibroid it is impossible to en- ter the cavity with our electrode, or when a sub-perito- neal tumor is so situated as to be beyond the effects of intra-uterine applications, in these emergencies puncture is of course the only choice. Punctures may be made either through the vagina or through the abdomen. The former method is generally preferred. In the intra-uterine treatment of fibroids the strength of the current that may be used varies from 30 to 150 milliamperes, and the negative pole, because of its supe- rior absorptive properties, is to be preferred. In hemor- rhagic cases the positive pole is indicated, and it cannot be too often repeated that, with this pole, platinum or some other non-oxidizable metal should always be used. In chronic cases the idea is, according to Apostoli, to destroy the mucous membrane and produce a healthy derivation. The faradic current, which is so valuable in simple uterine engorgements following abortions, and perhaps in the earliest stages of metritis, becomes useless in the presence of parenchymatous metritis. The chemical action of the galvanic current is alone serviceable in these cases. As in the treatment of fibroids, powerful currents are demanded, varying in strength from 50 to 150 milliamperes. Some good form of rheo- stat should be used, and as the current is gradually in- creased and decreased the utmost care should be exer- cised to avoid shocks. The operation is not electrolysis proper, but more correctly a chemical galvano-cauteriza- tion. The choice of the intra-uterine pole will be deter- mined by the symptoms in each individual case. At the positive pole the acids and oxygen accumu- late. This pole is therefore coagulating and haemostatic, and is indicated in all forms of hemorrhages and abnor- mal discharges. Another advantage possessed by this pole in hemorrhagic conditions is due to the greater re- tractibility of the positive cicatrices, which tend to pre- vent a return of hemorrhages. At the negative pole alkalies accumulate, producing some of the effects of caustic potash. It is sometimes called the fluidifying pole, and is more especially indicated in the non-hemor- rhagic forms of metritis. It is especially valuable in old, atrophic, or indurated forms of chronic metritis, where the connective tissue has become hard, fibrous, and devoid of blood. Far more effectually than the positive pole, it excites the languid or perverted uterine circulation and restores the menstrual flow. The caution never to use with the positive pole, in intra-uterine applications, any steel or other oxidizable electrode, cannot be too strongly em- phasized. Platinum is to be preferred, and, although it is expen- sive, it never wears out. A cheaper form of electrode is made of carbon so thoroughly polished as to render it non-irritant, or of steel subjected to certain processes by hydrogen which render it non-oxidizable. In time, however, both of these materials become roughened through the constant action of liberated ox- ygen. Peri-uterine haematocele, uterine hyperplasia, and sten- osis of the uterine canal, have also been successfully treated by the newer methods. Even salpingitis, through the depletion and drainage secured by electricity, has been decidedly benefited. Cataphoresis.-By this is meant the introduction of medical substances into the body by means of the gal- vanic current. It is a method that has long been known, but it is only within the last few years that it has been largely attempted. Its application is exceeding simple. In using cocaine, for example, for local anaesthesia, it is only necessary to place upon the absorbent covering of the positive pole a five to ten per cent, solution, and, after the current has passed for a few moments, marked anaes- thetic effects will be observed. In order to secure exact dosage it is convenient to have a flat metallic electrode, preferably of platinum, upon which is fitted a piece of tissue paper or some other com- pact absorbent material. Upon this is placed drop by drop the solution of any drug to be used, and the elec- trode is then applied to the skin. In this way the exact quantity of the drug is known. It is hardly necessary to exactly measure the strength of the current. As a rule a sufficient guide is to use the current only up to the point of easy endurance. Other remedies that have been used in this way with more or less success are aconitia, strychnia, and helleborin. The author has known cocaine to afford marked tem- porary relief in some cases of neuralgia, and in epilation it has enabled him to operate with little if any pain to the patient; but that there may be danger attending the use of the remedy in this way, admits of little doubt. A one per cent, solution of helleborin has been said to act even more satisfactorily than cocaine, producing deeper and more lasting, and accompanied by no constitutional, effects. The salts of lithium have been used for rheuma- tic and gouty swellings, and among mercurial remedies the imidosuccinate and bichloride of mercury are sug- gested. Before applying the medicated electrode to the skin it is a good plan to dissolve the oil-globules upon the surface by the application of ether. It is believed 266 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Electro- Therapeutics. (SUPPLEMENT.) that the " effects of the galvanic current upon nutrition are in part due to the cataphoric transfer of molecules of protoplasm and liquid from one cell to another, or from a cell to a capillary vessel in the path of the anodal stream ; and since the diffusion takes place more readily and more quickly in direct proportion to the current strength, it behooves us to employ as many milliamperes as feasible in our galvanization of the atrophied and paralyzed extremities of poliomyelitis, chronic neuritis, and peripheral nerve-trauma. Moreover, there would seem to be a possible advantage in the use of nutritive emollients in conjunction with the labile application of the anode to the atrophied member, just as they have been combined from time immemorial in the exercise of the aliptic art (massage).'' The use of iodine by cataphoresis has been attempted in cases of goitre, and good results have been claimed for it. Bipolar Faradization.-By bipolar faradization is meant the localization of the faradic current by means of a single electrode, and the method is confined, for the most part, to the treatment of internal organs, such as the vagina, the uterus, the rectum, and the bladder. Bipolar faradization, more perhaps than any other form of electrical treatment, necessitates a knowledge of the varied physiological and therapeutical properties of the induced currents of electricity. A current from a short, thick coil of wire (No. 21, say, in size, and but two or three hundred feet in length) will be of comparatively slight tension, but of so-called large quantity ; while the current yielded by a long and thin coil is of little quan- tity but high tension, overcoming the greatest resistances with the utmost ease. When, therefore, it is desired to produce powerful mechanical effects in the external fara- dization of the body, a current of tension from a long and thin coil is needed ; while to obtain these powerful effects in the faradization of internal organs, where the resistance is slight, a current of quantity from a short and thick coil is necessary. Let one become but once convinced by personal experience of the striking differ- ence in the action of induced currents of quantity and tension on nerve and muscle, and he will hardly need the demonstration of clinical experience to convince him of their different therapeutical properties. The short, thick coil offers very little resistance to the passage of electricity, and so gives forth a current of little tension but large quantity. When applied externally its appreciable influence is very slight. Its tension is so low that it overcomes with exceeding difficulty the resistance of the skin that must be encountered in all external applications. The important practical point in connection with this current is the extraordinary increase in energy that is manifested when it is applied to parts within the body. When applied to the rectum, the vagina, or the uterus, not only are the contractions pronounced, in response to a current which is not strong enough to produce any observ- able effect when applied externally, but they may easily become exceedingly painful. When applied, indeed, to these internal organs by the bipolar method, its extraor- dinary action on motor and sensory parts will hardly be credited without actual demonstration. It is the easiest thing in the world to demonstrate this fact unwittingly, to the injury of the patient and to the operator's mortifi- cation. This is what may very readily occur :-An intra- vaginal or intra uterine application is being made with the current of tension. The patient complains of an uncomfortable sensation, which may or may not be due to the action of the current, and you exchange the cur- rent of great for one of lesser tension, which, according to all the experiences of external application, is infinitely weaker. Instantly a shock is occasioned, associated with the acutest pain and the most rigid contractions, that astonishes yourself and terrifies your patient. The advantages of the induced current of quantity from the short, thick coil of wire, over the current of tension from the long, thin coil, lie almost wholly in the effects of their internal application, and especially by the bipolar method. This current is capable of exciting con- tractions of the involuntary muscular fibres of the uterus, of every degree of severity. For this reason it is invaluable in cases of post-partum hemorrhage, and must, it seems to me, prove far superior to ergot for its suppression, since it acts instantaneously and with a force just sufficient to accomplish the object desired. Currents of tension, however, from very long and thin coils, while they overcome with great readiness the enormous resistance of the skin and produce effects of a most pronounced character, exert by no means the same influence over the contractions and sensibility of the vagina, uterus, rectum, or bladder. So tolerant, in- deed, are the internal muscular organs of the body to the induced currents of tension, that it is frequently a question of how to obtain a current of sufficient power from the batteries in ordinary use. Batteries that have been long in use, and that are allowed to get out of order, while perhaps yielding a current of sufficient strength for localized applications externally, are insuf- ficient for bipolar applications. Even if at first the current is appreciably felt in the uterus, the sensitiveness soon subsides, although its strength may have been very much increased ; and both physician and patient may be in doubt as to whether the current is being received at all. This phenomenon be- comes prominently apparent in hysterical cases with which is associated excessive hyperaesthesia of the ab- domen, and it has been no uncommon thing in my ob- servation to treat women with the current of tension for the relief of the most acute surface abdominal hyperaes- thesia, and at the close of a single seance to find the ab- domen insusceptible to any ordinary manipulation. Far different is it with the current of quantity. Toler- ance is not established, and what is painful in the begin- ning continues more or less painful throughout the treatment, and it frequently becomes necessary to de- crease rather than increase the strength of the current. A No. 21 wire, with a length of five or six hundred feet, constitutes a satisfactory coil for currents of quantity ; while No. 36 wire, with a length of three thousand feet and more, is necessary to obtain the best effects of current tension. Among comparatively new devices and sugges- tions connected with electrical apparatus and methods of application, may be mentioned the franklinic interrupted 'current, electrodes for eliminating polar effects, and the various arrangements which enable us to directly utilize the current from the street. The static induction cur- rent is obtained from any machine that generates static electricity. The static discharge in the form of sparks becomes dynamic, and closely allied, in the effect that it produces, to the ordinary induced or faradic currents of electricity. The spark no longer directly affects the body of the patient, but occurs in some distant part of the circuit, thus obviating the shocks which are to some so disagree- able. There are two methods by which we obtain the static induction current: 1st, with the electrodes at- tached to the prime conductors either without or with the condensers ; 2d, with the electrodes directly con- nected with the condensers. On account of its high electro-motive force, and the readiness with which it overcomes the resistance of the skin, this current is often of great value in alleviating pain. It seems to me, however, to be inferior to the galvanic current in this respect, and yet it does relieve, as does the faradic, in some cases where the galvanic has failed. The differential indications for the use of currents of quantity and tension are, however, too wide a subject to be discussed here. I will only say that I have not infrequently found that the static induction current has proven more efficacious for the relief of pain than the ordinary faradic current. It is well known that what is called the faradic current of tension is far more efficacious in relieving pelvic pain than currents of quantity ; and the static induction cur- rent is a current of but little quantity but enormous ten- sion. When we consider that its voltage runs up into the thousands, it is not difficult to accord to it, despite its lack of quantity, special physiological and therapeutical 267 Electro-Tlierap. Emotions. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) properties. In the remarkable rapidity of its interrup- tions and alternations, also, the static or franklinic inter- rupted current is unique. While the average induction coil gives but a few hundred vibrations per second, it is claimed by physicists that the oscillations of each spark of the static current amount to many millions per sec- ond, and that these sparks follow each other at the rate of two hundred per second. The superiority, then, of the static induced current over the ordinary faradic in reliev- ing pain is undoubtedly to be ascribed, first, to its su- perior tension ; second, to the inconceivable rapidity of each spark-oscillation, amounting to many millions per second. It should, however, be borne in mind that the vastly improved coils now obtainable have greatly in- creased the anaesthetical properties of the faradic current, and for the relief of uterine and ovarian pain these high- tension inductive currents are unsurpassed. A. D. Rockwell. EMBRYOS, HUMAN. Age.-It has been quite gener- ally accepted that the age of an embryo must be de- termined by the time of a certain cohabitation. In many cases it was attempted to locate the day exactly. After it had been shown that the ovum is extruded from the ovary at or before menstruation, it was then generally admitted that the egg could be fertilized at any point between the ovary and the uterus. The time required for the ovum to pass through the Fallopian tube was considered the time in which it was capable of being fertilized. Accord- ing to the above, these conclusions are not based on a sound footing, because of the difficulty in obtaining ac- curate observations, and also because they do not agree with the results obtained from the lower animals. Both Coste and His have shown that the eggs of the hen are fertilized ten or more days after copulation, and the former has shown that the egg is no longer capable of fertilization after it has passed through the after portion of the oviduct. Impregnation is nearly always marked by a cessation of menstruation, and it now remains to be shown whether the fertilization takes place during the last menstrual period, or at the time of the first cessation ; for it is known from post-mortem examinations that ovulation comes just before menstruation. Since it seems to be neces- sary to fertilize the egg just as it leaves the ovary, it is probable that impregnation takes place just before the menstrual period. To locate the menstrual period, from which to compute the age of an embryo, we must consult the following table, which is in great part copied from His. | Number. Observer. Len g t h of em- bryo in milli- metres. Beginning of last period. Last possible co- habitation. Time of first lapsed period. Day of abortion. Time between Abortion and Probable age of embryo. Last period. First lapsed period. Days. Days. Days. 1 Graf Spee 1.54 35 7 (?) 14 2 Riechert October 10. Early November. November 7. November 21. 42 14 3 Breuss x X + 28. X + 38. 38 10 10 4 Thomson 2.1 x X + 28. X + 42. 42 14 14 5 Thomson 2.5 May 24. August 15. (?) September 10. June 1. June 1. 8 8 (?) 14 (?) 12 6 His (S. R.) His ?Lg.) 2.2 End of September. October 8. October 14-15. 60 (?) 40 M(?) 12 7 2.15 October 20. 8 Jantfsik 3.0 June 28. July 13. May 13-16. June 1. 43 15 15 9 His (BB.) 3.2 March 26. April 4.+ April 23. May 28. 48 20 20 10 4.3 April 10. x 53 52 22 11 Wagner .. His (a) 4.5 X + 20. 20 20 12 4.0 October 4. November 1. November 24. 51 23 23 13 His (W.) 5.0 March 5. March 26. 21 21 14 4.5 x X + 21. 21 21 15 Stubenrauch * 6.0 July 1. April 1. October 6. July 8. April 14. July 28. April 28. November 3. August 14. May 20. November 27. 17 17 16 7.0 51 22 22 17 Mall 7.0 52 24 24 18 His (SH.) 7.75 July 5-8. April 4. April 24. October 20. July 2O.t April 15. August 2-5. May 2. May 22. November 17. September 1-3. June 3. 57 29 29 19 10.0 60 32 32 21 His (Br,) 11.0 June 24. 61 33 33 22 His (Br2) 13.6 End of October.t December 22. 63 35 35 23 His (M^ 13.0 August 7. May 16. September 4. June 12. October 10. 64 36 36 24 Stubenrauch * 22.0 July 16. 62 34 34 * I have not full confidence in Stubenrauch's data. Some very apparent errors have been corrected. t Earliest cohabitation, From a comparative standpoint we can easily de- termine the age of human embryos within four weeks. Counting from the last menstrual period, it is quite easy to see by the size of the embryo whether or not it is, say three or seven weeks old. The table shows that, by counting in this way, embryos of the same size may have a difference of four weeks in age (see Nos. 5, 11, 13, and 14). In these cases the age corresponds to the other cases, if from their time twenty-eight days are subtracted. This already indicates that, as a rule, fertil- ization of the ovum takes place during the ovulation which precedes the first menstruation which has lapsed. After Reichert had shown that menstruation is only a method of clearing out the uterus after an ovulation, and after Leopold had shown that the mucous mem- brane of the uterus undergoes histological changes before ovulation, it is fair to assume that the latter changes are only preparatory to the reception of the ovum, and that when the unfertilized ovum reaches the uterus, menstru- ation is only a method of reducing the uterus to its for- mer condition. Only in four of the cases is it necessary to compute the age of the embryo from the last menstrual period, and it is not fair to assume that just these four embryos have grown too rapidly. All the rest must have twenty- eight days subtracted from the time in order to make them correspond with the above four. These are the main reasons for assuming that the fertilization of the egg takes place just before the first menstrual period which lapsed. It may be that a great many fertiliza- tions take place during the last menstrual period, but that when menstruation has once begun, the activity of the uterus destroys the ovum, and that, as a rule, only those are preserved in which menstruation does not fol- low the last ovulation. At least the embryological evi- dence speaks for this, and at present embryologists make their specimens correspond to one another when they reckon their ages from the last menstrual period, minus twenty-eight days. The table shows, in addition, that in certain pregnan- cies the first cohabitation followed the last menstrual period. It cannot be that in these cases the ovum of the last period could have been fertilized, for it is quite certain the ovum loses its power of being fertilized shortly after it leaves the Graafian follicle. In case No. 9 (B B), the first cohabitation of a newly married woman took place on April 4th, say about five days after the last menstrual period ; and the woman ceased menstruating at once, probably on account of the fertilization of the ovum of the following ovulation. If all the cases of 268 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Electro-Tlierap. Emotions. newly married women in which there was an early preg- nancy were collected, it would, no doubt, be shown that in many of the cases the women did not menstruate at all after marriage. At present, although not being a practitioner, I know of four such cases. His has tabu- lated cases given by Harter, in which the first copulation, the last menstrual period, and the date of birth of the child are given. In all of these cases the age of the foetus is from two hundred and seventy to two hundred and eighty days, if the beginning of pregnancy is reckoned from the beginning of the first period which has lapsed. If the beginning of pregnancy is placed at the first co- habitation, the age of the foetuses varies fully a month according to the time of the cohabitation ; if the time which has elapsed between the cohabitation and the first menstruation which lapsed is subtracted from the dura- tion of the pregnancy, then the lengths of the pregnan- cies are practically alike. Assuming that the lengths of pregnancies should be about the same, it makes it highly probable that fertilization takes place at the time of the first menstrual period which has lapsed rather than at the time of cohabitation. In several of the cases given in the table, the last co- habitation took place several weeks before the cessation of menstruation, showing that the vitality of the sperma- tozoa within the female organs lasts for at least a few weeks. It is probable, however, that the spermatozoa cannot live in the Fallopian tubes or uterus for over a month, because authentic posthumous births always take place within two hundred and eighty days after the hus- band's death. The general conclusions formulated by Professor His, and accepted by embryologists, are as follows : 1. The beginning of development is the time of im- pregnation, i.e., at that moment when the spermatozoon enters the ovum. 2. The time the egg leaves the ovary is marked by menstruation, but it is not necessary for the Graafian vesicle to rupture during menstruation ; it may take place two or three days before or even during the hemorrhage. 3. The egg is not capable of being fertilized at any point from the ovary to the uterus, but only shortly after it has left the ovary ; as a rule, as it is entering the Fallopian tube. 4. The spermatozoa which have entered the female sexual organs must await the ovum in the upper part of the Fallopian tube, and can retain their vitality here several days, or possibly several weeks. The time of cohabitation is, therefore, not directly related to the age of the embryo. 5. The age of the embryo is to be counted from the beginning of the first menstrual period which has lapsed, although it is possible to have a menstruation after fertil- ization of the ovum. 6. The age of an embryo can be expressed by the fol- lowing formula : A = M + X - 28 x 3, in which M is the beginning of the last period, X the time which has elapsed before the abortion, and the 3 the time between ovulation and menstruation. There is no reason why the gynecologist should not add his share in determining the age of embryos. Any physician would add greatly to the subject if he would tabulate all cases in his practice after the plan of the above table. It would not be necessary to confine him- self to young embryos alone, but he might include chil- dren at full term ; especially those of newly married women would be valuable. Moreover, if the young specimens were carefully preserved, he could do a great work hand in hand with the embryologist. Preservation.-The human embryos which come into the hands of the embryologists are nearly altogether worthless for careful study, due to careless preservation. Of fifty embryos less than six weeks old, which have come into the writer's hands during the last few years, only four have proved to be valuable, and these came from two physicians. The main reason why specimens are destroyed, in nearly all cases, is that the ovum is placed in very dilute alcohol, and in so doing it is also handled very roughly. Yet poor specimens are (SUPPLEMENT.) better than none at all, and in all cases all ova should be preserved, even if there is but little hope for a good speci- men. The best and most convenient method of preserving young embryos is to place the unopened ovum, with the least possible handling, in a large quantity of very strong alcohol. The alcohol of druggists is in no case too strong, and, ac- cording to my experience, is as a rule too weak. Often the ovum is wrapped in a towel and then placed in a small quantity of alcohol and water. This may be a method of preserving museum specimens, but it practi- cally ruins every embryo which is preserved in this way. When an ovum is placed in, say four ounces of strong alcohol, the water of the ovum dilutes the alcohol to a proper strength. Those physicians who have the proper opportunities should place the specimen as soon as possible, and with- out opening the ovum, in seventy per cent, alcohol, i.e., absolute alcohol reduced by volume to seventy per cent. At the end of a day or two it should be placed in fresh alcohol of the same strength. A second convenient method is to place a specimen in quite a large quantity of Muller's fluid, to be changed once or twice during the first few days, after which it may be preserved in the same fluid indefinitely. The em- bryo is fully hardened in about a month, and then it can be washed in water for a day or two, after which it is to be preserved in seventy per cent, alcohol. Ten per cent, nitric acid is a convenient and a most ex- cellent method. The ovum is to be placed in four or six ounces of a ten per cent, solution and opened while in the fluid, care being taken not to injure the embryo. According to its size (if not over an inch long), it should remain in the acid for from thirty minutes to two hours. At the end of this time it is to be placed in seventy per cent, alcohol. Another excellent method is to employ saturated aque- ous corrosive sublimate. The specimen is to be treated as in the ten per cent. HNO3, only it is to remain in the sublimate longer. These specimens are then to be pre- served in seventy per cent, alcohol. There are many other methods, but if any of the above are employed there will be a sufficient supply of material to aid the study of human embryology. It is really won- derful to see what progress has been made in this study when we consider how difficult it is to obtain good ma- terial. Some of the most important discoveries have been made in the careful study of a few well-preserved human embryos, as a glance at the many papers of Uis and at the excellent text-book of Minot will show. A great work is done when the specimens are once obtained, but in order to make it complete they must be placed in the hands of a specialist, who can devote all his energies as well as all the additional necessary expense to these-the most precious of embryological specimens. Franklin P. Mall. EMOTIONS, THE PHYSIOLOGICAL AND PSYCHO- PHYSICAL BASIS OF THE. The practitioner of med- icine is not universally expected to command a minute or special knowledge of psychology, but he may, and should be, familiar with certain intimate anastomoses of this subject and physiology. At a time when so- called psychological healing offers active competition to medicine in certain quarters, it behooves the physician to understand and to be able, if need arises, to formulate the conditions of psychical influence upon the body. On the other hand, men who are daily brought face to face with abnormalities of psychical function in con- nection with diseased bodies, and whose attitude is es- sentially critical and practical, might exercise a most wholesome influence upon the development of that new psychology which lays claims to recognition as a natural science. The scholastic and convenient tradition which divides psychical manifestations into cognitions, volitions, and feeling, permits us to single out a class of so-called men- tal manifestations, which are conceived to be determined by a form of the receptivities of mind known as the sus- ceptibilities. The most careful writers have discovered 269 Emotions. Emotions. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. in this group of "faculties" a perennial source of dis- pute and ambiguity. Older psychologists conceived of feeling as obscure or implicate thought, or as impotent or unexpressed im- pulse or will. Hoeffding defines feeling as "that in our inward states which cannot by any possibility become an ele- ment of a percept or an image;" as "an inner illumi- nation which falls on the stream of sensations and ideas." Both these expressions indicate the difficulty involved in isolating feelings, the one being negative, the other an illustration. Sibbern notices that feelings and will have this in common, that in both " the ideas involved have a personal hold and effect, so that we yield ourselves up to them and are incited to act and strive for their reali- zation." Recognizing the futility of the distinctions usually made, James has boldly used feeling as synony- mous with the word psychosis or subjective state, and made no attempt to distinguish it from thought. The emotions (German Effecte) are described as a bubbling up of feeling which may greatly influence the course of cognitions and volitions, or temporarily inhibit or stimu- late them. If emotions be strictly limited to feelings with psychical (cognitive) occasion or accompaniment, much ambiguity may be avoided, but it would still be necessary to insist on the essential similarity of these feelings to others with simple sensational basis. The fol- lowing classification may prove convenient: (SUPPLEMENT.) which bring us into closest relations with the lower special senses, olfaction and taste, and the diffuse sensa- tions on one hand, and subemotional processes, like elation, ennui, and depression, where total sensations and rudimentary feelings fuse. It must not be forgotten that pain and sense gratifica- tion are strong elements in the emotions and require a careful examination. Hoeffding says "feeling stands out plainly, as an element different from the actual sen- sation, in certain experiences, which prove that the pain caused by an excitation takes longer to be produced than the actual sensation, and that sensation may arise with- out the corresponding feeling, and vice versa." Bichet says " pain without memory and without radiation would be no pain at all." Often an interval of one or two seconds may elapse after the sensation is perceived before pain appears. These cases, so often quoted as proving the distinct nature of pain, are in one respect fallacious. When a nerve-fibre is penetrated by a pin the pain is nearly, if not quite, as promptly felt as the touch. When the finger is struck by a hammer the pain is frequently long delayed. But the acme of pain in that case is due to a reactionary process in the tissues, notably the vascular contractions, etc. There may be several oscillations of pain and a set of summations of a curious character. It is even possible, by bringing to bear coun- ter-irritants, to preclude these after-effects and mitigate the pain, as by rubbing or pinching the part. In the case of a burn the conductivity of the tissues and vascular responses are even more evident, and such attempts to differentiate pain from sensation as a modal- ity of feeling are futile. The fact that there may be analgesia without anaesthesia, and vice vers&, is tenta- tively explained by the recent suggestion, that thermic and painful sensations find their way to the cortex through the gray matter of the cord instead of the fibrous columns, and affords us added data for the gen- eralization for which we are now ready, viz.: Feeling is always composed of two sets of factors; first, a sensa- tional, and second, a cognitive or intuitional element. The sensations which directly participate in feeling are non-localized (general or total sensations), or are so acute as to irradiate, and thus ally themselves with total sen- sations. The cognitions or intuitions are primarily such as identify the subjective state with the empirical ego. The association of reflexes and instinctive responses con- verts the feeling into an impulse which is usually em- bodied in the so-called emotion. James identifies instincts and emotions as two forms of impulse, in this usage betraying German influence. He says that the class of emotional is rather larger than that of instinctive impulses. Its stimuli are more numerous, and its expressions are more internal and delicate, and often less practical. The physiological plan and essence of the two classes of impulse is the same. This identifi- cation of the expression of the emotion with the psychi- cal element (feeling) seems illogical, inexpedient. In- stincts may have an emotional origin, or may be of the nature of impulse deprived of its psychical element; but pure instinct is not emotional, though emotions may be awakened by a resistance to the gratification of the in- stinct. An impulse stands on a present or historical basis. With this difference in distribution, the theory of emo- tions proposed by Professors Lange and James goes far to place the emotions on a plane of scientific research. As expressed by the last named, this theory is about as fol- lows : Bodily changes follow directly the perception of the exciting fact, and our feeling of the same changes as they occur is the emotion. Objects excite bodily changes by a pre-organized mechanism, and these changes are so indefinitely numerous and so subtle that the entire organ- ism may be called a sounding-board, which every change of consciousness, however slight, may make reverberate. Everyone of the bodily changes is felt acutely or ob- scurely the moment it occurs. Jamessays: " If we fancy some strong emotion, and then try to abstract from our consciousness of it all the feelings of bodily symptoms, we find we have nothing I. Feelings. Sensations. Sense gratifica- tion and pain. General o r total feelings. 11. Occasions. Normal (moder- ate) sensory stimuli. Super-normal stim- uli, with ten- dency to irradi- ate. Diffuse (somatic, especially " to- tal " ) stimuli. Emotion:'. Impulses. Sentiment. Disposition. Somatic changes occasioned or ac- companied by cortical activity. Reflexes excited by somatic and cortical activ- ity. Persi stent co r t i c a 1 changes. Reactions of corti- cal residua on new data o f consciousness. This series of subjective states is not to be regarded as arbitrary, but capable of the most far-reaching inter- penetrations. Of course it may be claimed that there is a great gap between sensation, or even bodily pain and pleasure, and the emotions which depend chiefly upon data of a higher intellectual character. Between these two groups is another, which seems, in part at least, to bridge over the interval, the total or general feelings. Sensations, as the most direct responses of the con- sciousness to external irritations in which the bodily par- ticipation is more direct than in the subsequent processes (perception, etc.), afford the simplest data of conscious- ness. Even in this case, however, the nature of the response varies with the organ in respect to the amount of subjective participation. Thus, sensations are excen- trically projected or externalized ; the former in the case of tactile, gustatory, thermic, and algesic senses ; the latter in the case of special senses-visual, auditory, and olfactory. That this is not a primitive difference, but is devel- oped through associations of several senses, is proven by such facts as that when a blind person is suddenly given sight, the external world seems to touch the eye, i.e., is excentrically projected rather than externalized. That externalization is possible to the tactile sense or " mus- cular sense " is shown by hyperexcentric reference of sensations of double contact, as when the blind man seems to feel an object at the end of his cane, or the surgeon's sensation is transferred to the end of his probe. We may dismiss, as beyond our limits, the three sciences -optics, acoustics, haptics (the skin and muscular sensa- tions)-and there still remains a set of sensations which may be conveniently grouped as general sensations, 270 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Emotions. Emotions. left," . . . "a cold and neutral state of intellectual perception is all that remains.'' "The more closely I scrutinize my states, the more persuaded I become that whatever moods, affections, and passions I have are in very truth constituted by, and made up of, those bodily changes which we ordinarily call their expression or con- sequence." These quotations serve at least to emphasize the importance of the corporeal element, however much they ignore the cognitive element. The natural and logi- cal criticism is that the effect on consciousness, which is all we get out of feeling, is wellnigh overlooked. Emotion consists (1) of general sensations of total, or- ganic, or irradiating varieties which have in common a lack of localization and, as a result of associational laws, are amalgamated more or less closely with the empirical ego ; (2) of more or less explicate or implicate cognitions (perceptions, intuitions) of the relation between the cause of the sensation and our well-being; (3) the emotion is more or less closely attached to various impulsive ex- pressions which tend in various ways to intensify the two preceding. More in detail: The sensations are produced in most cases by vaso-motor changes which, in turn, pro- duce " total sensations," usually entirely unlocalized and not necessarily distinguished apart from the feeling. Such sensations may be recognized, and to some extent analyzed, by practice. They precede the emotion proper and compose its sensational element. When one lies half asleep in the morning and a loud report startles him, the sudden surging of the blood to the periphery pro- duces a familiar but indescribable sensation, which may include tingling at the finger-tips, a curious twinge in the axials, a suffocating sensation in the chest, as more specific accompaniments. Then a flash of fancy depicts the burglar in the kitchen and a scene of bloodshed, danger to self, and the like ; now perhaps a strange " gone " feeling in the abdomen, and helpless atonic con- dition of muscles follow ; then impulse dominates, and the tendency to spring to the defensive arises ; all this be- fore judgment announced that the cook has slammed the range door. Granting that the illustration has served to indicate the meaning of the statement above, it need re- quire but brief experiment and self-observation to show that vaso-motor and organic changes always accompany and afford a sensational basis for feelings. A just analy- sis will not neglect the subjective processes in construing the physical. Stripped of the sensations above referred to, and the instincts and impulses associated with them, the residuum is still not to be passed over. " A feeling- less cognition that certain circumstances are deplorable," or otherwise, may be, and generally is, but the first step in a series of judgments or representations out of which spring the involuntary acts which are the really impor- tant results of emotion. The sensational element is that which represents the general, though subtle, bodily effect of the stimulus (be it physical or psychical), while it serves to awaken within us the empirical ego (the sum of our pure- ly subjective bodily reactions on consciousness), which gives point or poignancy to the following psychical pro- cesses and links self with phenomena, awakening the par- ticipation of the soul in the states of the body, or of other beings, which otherwise might concern us only as do phenomena in Mars. It is then no mere figure which localizes the emotions in the heart or bowels, but a state- ment of sober physiological truth. A heartless man is one whose intellectual appreciation of the results of an act does not awaken sympathetic thrills in his physical being adequate to quicken in him a participatory or sym- pathetic state. Such a condition may be acquired by habit or produced by heredity. Practically,*we are first interested to study the physical substrata conditioning the emotional temperament and its expressions. The sensational elements in emotion are, first, pains and sense gratifications ; second, obscure organic and total sensations which are not usually perceived as such, but are interpreted as part of the feeling ; third, reproduced pains or gratifications always followed or accompanied by total sensations ; fourth, representations which awaken by association either reproduced pains and gratifications which, in turn, give rise to total sensations, or the latter (SUPPLEMENT), without the former ; fifth, instincts, which obey laws of association whose rational explanation lies in the develop- ment or phylogenetic history. Pain and sense gratification are more difficult to con- strue, because more direct and simple than the others named. So long as pain, etc., were regarded as simply exaggerated forms of ordinary sensation the problem was insoluble. That this is not the case is suggested by the fact that they pursue other courses in the cord, and are as- sociated more closely with thermic sensations. If a small area of the skin is isolated it is found that tickling with a feather is interpreted as warmth, and a thrust with a needle cannot be distinguished from heat. In other words, if the local signs by which position is recognized are excluded, the differences break down. It may be noted that general changes in temperature states are closely connected with the general feelings, as witness a shudder or the cold chills of fear, and the glow of pleas- ure. Briefly stated, the peculiarity of pain and intense gratification of sense which adapt them to become sources of feeling, is their diffusive (irradiative) character. If the current suggestion that algesic stimuli pass by conduc- tion through the gray matter of the cord be substantiated, a much closer connection with the visceral centres than hitherto suggested may be postulated, and the thrill of pain can be readily interpreted as the sympathetic con- traction wave passing throughout the vascular system. The evidence for the existence of adequate vaso-motor causes of the sensational element in emotion is largely subjective, but those familiar with nervous diseases will not lack for evidence that variations in circulation are powerful factors in emotional disturbance. Shame is an emotion quite independent at times from any judgment of adequate occasion for chagrin. It is very closely con- nected with peripheral vascular changes. In anaemic or neurotic persons the flush may come without any exter- nal exciting cause, and yet frequently produces all the subjective effects of shame. Not very infrequently this symptom becomes intolerable and almost alone drives one from society. Still more frequently psychical reflexes become associated with it and enhance its power. Fear, which originates in a shock or contraction wave of the vascular system, bringing a whole series of visceral and secretory changes in its wake, illustrates the possibility of separating the sensational from the cognitive element. Dreams often afford instances of all the physical mani- festations of fear, with no adequate cognitive process. The writer has dreamed of being the actor in a play in which fear of impending danger entered, and, in his capacity as actor, felt fear (sensational) ; while in his capacity of critic he, at the same time, observed the entire inadequacy of the supposed occasions of fear. Lange says : " No one has ever thought of separating the emotion produced by an unusually loud sound from the true inward affections. No one hesitates to call it a sort of fright, and it shows the ordinary signs of fright. And yet it is by no means combined with the idea of danger, or in any way occasioned by associations, memo- ries, or other mental processes. The phenomena of fright follow the noise immediately, without a trace of spiritual fear. Many men can never grow used to stand- ing near a cannon when it is fired off, although they per- fectly know that there is danger neither for themselves nor for others-the bare sound is too much for them." One who has walked oyer a railroad trestle by night and narrowly escaped a fatal plunge by observing just in time the absence of a tie, will be able to recall the peculiar series of organic sensations involved. The thrill of vaso-motor disturbance pervading the body-the twitch of the radial artery-the pain in the sternal region-the suffocating sensation in the breast and lump in the throat-and, finally, the " gone " sensation in the abdomen somewhat resembling a sensation of cold, and due in all probability to vaso-constrictor reactions in the visceral vessels-these, and many more, illustrate the bodily effects which may wholly precede the apprehension of danger, and may be enhanced by a variety of imagination pictures, and may express themselves in impulsive gasps and gestures. It is not necessary to call attention to the fact that mental 271 Emotions. Epidemiology. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) images may be almost equally effective with the actual external irritations in producing the sensational responses of emotions. Before passing from the direct sensational elements, however, it may be noticed that those senses which externalize their data (vision, hearing, etc.) have special powers over the emotions which may in part be explained by a sort of central (bulbar ?) irradiation. Simple colors and musical sounds produce a vague and feeble pleasure unworthy to be called emotional, but similar to the normal subjectivity of nervous action ; but a symphony or aurora plays on the sensitive organism like a harp. The writer, without musical tastes or edu- cation, confesses to the tumult of indescribable sensations produced by Wagner or Beethoven. Flushes of cold and heat ; tinglings and palpitations local and general ; gusts and torrents in the blood ; creeping, swelling, scintilla- tion of the skin ; giddiness and elation-these and inde- scribable " all-over " sensations are easily separable from intellectual appreciation, which may even be absent; and one may be a wondering spectator observing the irra- tional gyrations of his own sense to tintinnabulating stim- uli upon which judgment turns the cold shoulder. Another class afforded by the tickling and shuddering or irradiation sensations proper, further illustrate the neces- sity of diffusion in emotional sensation. The slight sensations of tickling, aided by subjective modifications, extend in most varied and irresistible sensations over the whole body. Its emotional character is almost wholly apart from the intellectual element. The shudder and chill which spring from a gritting sound or the velvety touch of a peach, imply in addition considerable instinc- tive elements. The effect of instinct is powerful in the emotions gen- erally. The faintness at sight of blood may be entirely apart from apprehension. The universal creepiness in- spired by the approach of a harmless snake or the prox- imity to a precipice, are illustrations of a form of sensa- tion obviously highly developed in animals (witness the rising hair of the new-born kitten at the odor of a dog). The sight of many small animals, pets, or children, pro- duces a marked thrill in most children, often accom- panied by curious sensations at the root of the teeth (analogous to the sensation sometimes felt with sur- charged bladder), and accompanied by strong impulse to squeeze or hug the animal, to contract the muscles of the jaws, arms, etc. These are often very powerful sensations, and product- ive of almost violent impulses. They are analogous to certain sexual instincts (perverted in gynophagia, etc.), but are quite distinct from them. The impulses of emotion have received careful study, and only too often have been identified as part of the feeling. If it were desired to analyze emotion as of threefold character, thus: sensation, cognition, impulse, there could be no serious objection, except that impulse does not always require consciousness of its occasion as emotion must. Strong evidence as to the nature of emo- tion is afforded by the fact that imitation of the expres- sions of emotion reflexly awaken the emotion, while vig- orous repression of these impulses quickly obliterate it. Distraction of the attention may check the tempest rising in a child's bosom which, once overflowing, could only find relief in exhaustion. Many persons who are not suspected of neurotic dis- ease, have a transitory mania which exhibits itself in paroxysms of fury as blind and unreasonable as those of a maniac, and which may be occasioned by trivial circum- stances. The fact that impulsive responses to emotional excitation have this reflex power is a significant one in the treatment of nervous disease Bucke's description of nervous dyspepsia may find a place here. " All phys- icians who have been much engaged in general practice have seen cases of dyspepsia in which constant low spirits and occasional attacks of terror rendered the patient's condition pitiable in the extreme. I have observed these cases often, and have watched them closely, and I have never seen greater suffering of any kind than I have witnessed during these attacks. . . . Thus a man is suffering from what we call nervous dys- pepsia. Some day, we will suppose in the middle of the afternoon, without any warning or visible cause, one of these attacks of terror comes on. The first thing the man feels is great, but vague, discomfort. Then he no- tices that his heart is beating much too violently. At the same time shocks or flashes, as of electrical dis- charges, so violent as to be almost painful, pass one after another through his body and limbs. Then in a few minutes he falls into a condition of the most intense fear. He is not afraid of anything ; he is simply afraid. His mind is perfectly clear. He looks for a cause of his wretched condition, but sees none. Presently his terror is such that he trembles violently and utters low moans, and at this stage there are no tears in his eyes, though his suffering is intense. When the climax of the attack is reached and passed, there is copious flow of tears, or else a mental condition in which the person weeps upon the least provocation. At this stage a large quantity of pale urine is passed. Then the heart's action again be- comes normal and the attack passes off." It is not the purpose of this article to suggest remedial or obviating procedure, but it is obvious that the vaso-motor condi- tions in hypochondria and nervous acme of all kinds acquire new significance in this connection. Another group of phenomena connected with emo- tional excitement has recently been adverted to. In a paper before the International Congress of Ex- perimental Physiology, session of 1892, Professor Hugo Miinsterberg details the results of experiments, showing that the emotional states react differently on the extensor and flexor systems of skeletal muscles. After having for some time practised moving an index on a scale ten or twenty centimetres centripetally and centrifugally, un- til the distance could be quite accurately estimated with closed eyes, he tried the same experiment while experi- encing pleasurable and painful emotions. The results are interesting. Purely physical variations, such as would be expected a priori, are seen in the under-estima- tion of the distance in dull or serious moods, and over- estimation when excited or amused. But psychical varia- tions appear when they would hardly have been expected. Thus in unpleasurable emotions the extensor motions are too small, while flexor motions are too large, and during pleasurable emotions the flexor motions are too small and the extensor motions too large. The author does not hesitate to found on this observation the theory, that it is not simply true that painful emotions produce flexor motions and pleasurable emotions extensor motions, but that the psycho-physical effect of the reflexly produced extension and flexion is precisely what we term pleasure or painful emotion. A farther generalization is that ex- tension must always, from the biological stand-point, occur with serviceable, and flexion with harmful, irrita- tions. Even the infusoria exhibit the same tendency. This lies at one extreme, while at the other the pleasurable emotion of assent is but an associated reproduction of earlier extensor motions, and vice versa. Pain and pleas- urable sensations acquire emotional value only through the aid of associated muscle sensations, i.e., such as form the foundation of our empirical ego. These suggestions are expressed in a somewhat differ- ent form in Tuke's well-known text-book. " By act- ing chiefly on the flexor muscles, fear causes the gen- eral bending or curving of the frame; while courage contracts the extensors, and produces expansion and height." "The opposite muscular states of contraction or ten- sion and relaxation, alike find illustration in the emo- tion of terror, for with the signs of the former already mentioned, and the stare of the eye, are combined the relaxation of the masseters, the sphincters, and the pro- cesses of organic life." "Calmness-a placid condition of the feelings generally-is marked by a gentle con- traction of the muscles, indicative of repose, but at the same time of latent power-by the countenance free from furrows, but not relaxed into weakness. Anger or rage contracts the masseters, inflates the nostrils, furrows the forehead, and exposes and rolls the eye- 272 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Emotions. Epidemiology. balls, clenches the fist, and induces a violent action and more or less rigidity of the muscles generally." " As all movements have for their great end the pres- ervation as well as the enjoyment of the individual, and as contraction and relaxation take place primarily to at- tain this end, a general expansiveness of expression and gesture is allied with all the emotions which are excited by impressions (or generated by ideas) of a beneficent character ; while a general exclusiveness or contraction of features is allied with emotions excited by maleficent ex- pressions ; the object of one class of movements being to court and receive, and of the other to avoid and reject." " Pleasurable and painful sensations from without de- termine, then, the form which the muscles called into action assume ; the purpose being to protect the organs. Similar muscular changes arise from the emotions, ac- cording as they are pleasurable or painful, in conse- quence of the harmony between mental and bodily acts." The existence of impulses of the most recondite and adaptive sorts need not be denied, nor can it be doubted that these reflexly contribute to the emotional element. It must be urged, however, that emotion, strictly speak- ing, is subjective and must not be identified with its bodily occasions or results. The practical problem is to acquire control over the conditions. The transition from emotion to sentiment is impercep- tible. Joy and sorrow are sentiments growing out of pleasure and displeasure, and these have their counter- parts in sense gratification. Conjugal love is the senti- ment of which passion is the emotion, for which erotic excitement may afford one sensational basis. The rhythmical flux of the feelings is explained by physiological oscillations. In the morning, when the current of life is full, emotions are not easily awakened. A morning audience is not a responsive or emotional one. The processes of nutrition exert a powerful effect. Physiological acme, like puberty, and the climacteric, predispose to emotions. The early development of the sensational element of emotion and its preponderance in the lower animals has been thought to imply that feelings are prior to cognitions. A more just analysis recognizes the psychical element of emotion as essentially intellec- tual, and abandons the attempt to secure a serial relation of the " faculties." An interesting and important field is thus open to the practising physician in the minute study of the pathology and physiology of emotions. C. L. Herrick. EPIDEMIOLOGY is the science of epidemics. It is therefore chiefly concerned with the distribution of dis- ease, although it necessarily deals also largely with ques- tions of aetiology (c/. ^Etiology). The distinctive feat- ure of an epidemic is the sudden and temporary appear- ance of a disease in a considerable number of persons in a community at the same, or nearly the same, time. The epidemical diseases are naturally, therefore, chiefly, if not wholly, extrinsic or environmental diseases. We cannot well think of intrinsic disease appearing simul- taneously in large numbers of people. The explanation of epidemics was formerly simple, although really ob- scure. The commonest causes assigned were those de- scribed as " meteorologic" or " telluric." Exactly what these meant no one knew. " Emanations from the soil," "atmospheric conditions," and the like were the high- sounding paraphrases which have not yet wholly lost their force. It is only within the last half-century that a more comprehensible set of causes has been introduced, and that the scientific study of the distribution of disease has become a possibility. With the establishment of the doctrine of contagia viva the subject of epidemiology be- came a part of general biology, and the distribution of disease began to be studied as the distribution of plants and animals had long been studied. Contagion and in- fection became easily interchangeable terms, contagion being only one method of infection. At the present time we may safely assume the doctrine of a contagium vivum at the bottom of most epidemics, although in the last analysis it will be safer to assume the cause as toxic or toxicogenic. A poisoned well might easily produce an epidemic of arsenical poisoning. A car-load of trichinous pigs might as easily produce an epidemic of trichinosis in a community. An infected water-supply or milk-supply may produce an epidemic of typhoid fever. In all of these cases the ultimate as- sault upon the cells or the protoplasm of the body may be toxic in character, for while the trichinae are lodged in the muscle, and the bacillus of typhoid fever may mul- tiply in the intestine or in the blood or the tissues, the chief damage is done, in all probability, by substances pro- duced by the invader which are essentially toxic. It is a significant commentary upon the dependence of defini- tion upon knowledge and upon the value of a rational aetiology, that epidemics due to poisoning are seldom so called, being known rather as " cases," while epidemics whose origin is unknown, or not generally understood, are still called " epidemics," and popularly attributed to vague or supernatural causes. If we allow that what are thus called epidemics are, in reality, due to living organisms such as the spirillum of Asiatic cholera or the bacillus of typhoid fever (and at present the evidence of aetiology certainly lends very strong support to this view), then we have in epidemio- logy simply to inquire-How may the organisms of infec- tious or epidemic diseases be so disseminated as to attack simultaneously a number of persons and thus generate an epidemic ? Obviously food and drink afford convenient vehicles for the introduction into the alimentary canal of all kinds of particles, not excepting those which may act as the germs of disease. The atmosphere also may con- tain these minute particles, and, during the act of respira- tion, deposit them upon the pharyngeal or pulmonary mucous membranes. But even when so introduced into the alimentary or pulmonary passages the germs of dis- ease may conceivably do no damage. They may find their environment unfavorable, or they may be destroyed by the digestive juices, or having penetrated into the body proper they may be captured by phagocytes, or killed by the defensive substances of the tissues. As a matter of fact wTe find in all epidemics some striking ex- amples of apparent insusceptibility and exemption from attack, as well as cases affected in very different degrees, some lightly some severely. These facts are usually explained by the doctrine of " predisposition." A in an epidemic suffers severely ; B is entirely exempt, and C has only a " mild attack." It is usual to say that A was in a peculiarly " susceptible " condition, while B was not at all " susceptible," and C only slightly so. Theoretically this condition of things might easily have existed and each have received the same quantity of virus. Moreover, clinical experience strongly confirms this view, for in epidemics in general, and in those of typhoid fever in particular, it is the ob- viously weak or overburdened who most readily suc- cumb to infection. But there is another possibility to be kept in view. The amount of the dose may have some- thing to with the matter, and in this direction we are still very much in the dark. It is now generally admitted by epidemiologists that there must be an exciting cause acting upon a commu- nity before an epidemic can arise. Even Pettenkofer has referred to this cause, in his latest publication upon cholera (see The Lancet, 1892), as very likely an organism, but something properly designated as x. The individual condition of susceptibility or immunity he designates as 2. Most epidemiologists of to-day regard these two fac- tors as sufficient to determine the question of the disease. But not so Pettenkofer, who adds to these an interme- diate requirement, viz., condition of locality, which he designates as y. While insisting upon this, Pettenkofer urges that those who omit his y are destitute of epidem- iological experience, and by virtue of their inexperience with epidemics easily become mere " contagionists." It is not easy to discover the evidence upon which Petten- kofer bases his claim for the importance of local condi- tions in the distribution of infectious disease. Those who are familiar with the works of Budd on typhoid fever will not readily accept the views of Pettenkofer, 273 Epidemiology. Epileptics. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. and the doctrine of parsimony in logic will not allow us at present to require any other factors for disease than the fortuitous concurrence and combination of his x and his z. It is uncertain to what extent the air is a carrier of disease, but the tendency of recent inquiries is to di- minish rather than increase its importance. It is now generally held, upon the evidence of bacteriology, that the expired air is germ-free, so that this possible ave- nue, once regarded as important, and popularly still so regarded, is excluded. With pulmonary tuberculosis, diphtheria, and pneumonia, the sputum, when dried and pulverized, may act as the vehicle of disease driven by the air, but it is not yet accurately known to what extent the germs survive, or for how long, under natural condi- tions. With the exanthemata, particularly small pox, scarlet fever, measles, and the like, there is every reason to believe that the disease is often disseminated through the air by means of infected epidermal scales driven about. In the diarrhoeal diseases, on the other hand, it is apparently the bowel discharges (and only rarely the urine) which contain and convey the infection. Asiatic cholera and typhoid fever are apparently conveyed chiefly, if not exclusively, in this way. To provoke an epidemic of these diseases it is apparently only necessary to contaminate food or drink with (rather fresh) fecal material. Very numerous cases are on record of the dis- semination of typhoid fever by infected milk and infected drinking-water, and the same facts are probably true of cholera. Dr. Budd long ago proved that the former dis- ease is common among washerwomen, whose duty it is to wash infected linen soiled with the discharges of typhoid-fever patients, and there is an increasing quan- tity of evidence that milkmen and others suffering from incipient or walking typhoid may infect the milk which they sell by carelessness in cleaning their hands after defecation. One of the most instructive epidemics ever traced was that at Caterham, England, in February, 1879, where a small quantity of the fecal discharges of one workman, apparently in the incipient stages of typhoid fever, contaminated an otherwise pure water- supply, and led to 352 cases and 21 deaths from this dis- ease. The low fatality may have been due to the enor- mous dilution of the virus. If by food we may understand broadly food and drink, then it is probably true that the principal vehicles for distribution of the seeds of disease are food and fingers. In the diarrhoeal diseases this is certainly true, and it will very likely be found hereafter to be equally true of other infectious diseases, although for diseases of the throat and lungs, such as diphtheria and tuberculosis, kissing may hereafter be found to be the most effective agent of distribution. Of contagion in the popular sense, namely, the " taking" of a disease directly, from mere contact or touching, there is probably no real ex- ample, except in kissing or venereal disease; but the hand must certainly be regarded as the ready carrier of the germs of disease to the mouth, so that " contagion " may readily result in infection. It ought to be more widely understood than it is that unclean hands may infect food, and that although contagion in the old sense plays a small part, the co-operation of fingers and food may make a very " short cut " for the distribution of disease. The author has seen epidemics of typhoid fever plainly due to secondary infection of this kind among unclean people, whose families prepare and serve their own food. These cases are more obscure, but not less instructive than those in which a public supply, such as water or milk, shared in common by many, has become infected. It must not be forgotten that if the modern views of the aetiology of contagious disease are correct, there can be no more real mystery in the genesis of epidemics and the distribution of disease than in the genesis of nations or forests and the distribution of plants and animals. William T. Sedgwick. EPILEPTICS, THE CARE OF. The care of epilep- tics really includes their medical treatment as well as all other kinds of help extended to them. But medical care has been given them, such as it is, for some thousands of (SUPPLEMENT.) years, and yet without adding much to the happiness of individuals under treatment, or accumulating much evi- dence of positive value concerning medication in epi- lepsy. Our results have been, indeed, almost valueless, for, with all our dosing with bromides, borax, belladonna, and so on through the alphabetical index of the Pharma- copoeia, it is extremely doubtful if in ordinary practice one per cent, of the cases of idiopathic epilepsy are cured. Besides the practical incurability and hopelessness of the disease, its victims have suffered untold sorrows in the way of negligence and ill-treatment at the hands of the communities in which they live. It is a peculiarity of this disease that the seizures may be momentary, or may last for a few minutes only, re- curring sometimes frequently, sometimes daily, and sometimes months apart, thus robbing the sufferers of their consciousness and faculties, for brief periods of time at long or short intervals. Between the attacks they may be as rational and as well qualified for all the vocations, duties, and social privileges of life as any other human being. These facts do not concern only a few members of a community. Epilepsy is a widespread disorder, and it has been calculated that one person in five hundred is thus afflicted. Thus there would be in the neighborhood of one hundred and thirty thousand such unfortunates in the United States alone, and over twelve thousand in the State of New York. Even supposing this percentage to be exaggerated to a very great extent, and that the actual ratio were one to one thousand, the number of epileptics would still be enormous, and would constitute a very large part of our defective classes. Outside of the efforts, thus far comparatively futile, of physicians to alleviate their purely physical infirmities, and to reduce the number and severity of the attacks, nothing has been done until late years to provide for their mental development and to meet the peculiar con- ditions of life which they are called upon to endure. Thus no general hospital will receive such cases for treat- ment, because of the incurable and unpleasant nature of their malady ; while much of the time thoroughly capa- ble of acquiring an education, they are debarred for obvious reasons from the schools; the churches are closed to them; very few care to employ epileptics in shops, stores, or offices, or are willing to teach them trades; few epileptics are at liberty to enjoy the com- panionship of their fellows, who rather are inclined to shun their unfortunate brethren. Thus every avenue for mental or moral development, for occupation, for as- sociation with the rest of mankind is closed to them. They are even burdensome to their families. It is little wonder, then, that many of them grow up dull and igno- rant, intellectually feeble, normally depraved, irritable in temper, with tendencies to retrogression and degeneration rather than to advance. A few of them become insane and are sent to insane asylums. Others, not insane, but ill adapted for existence under such miserable conditions, drift to the only homes offered them, the almshouses. The almshouse and the asylum are their only refuge when abandoned by their friends. In the State of New York, for instance, where there are twelve thousand epi- leptics, some four hundred or more are in insane asylums, and some six hundred in the county poorhouses. The rest of these are scattered throughout the State, in their own families, among the rich and the poor, in ratio to population and to the relative proportions of these classes. Many are so slightly affected that they are able in spite of their seizures to pursue some of the ordinary vocations of life. Thus I know personally of a doctor, clergyman, several bookkeepers, a bank president, a stock - broker, several clerks, some dressmakers, shoemakers, masons, and a telegraph operator who are epileptics, and yet able to carry on useful pursuits, albeit under adverse condi- tions. To all of us are familiar certain well-known his- torical or literary characters in whom epilepsy failed to restrict the development of their genius, such as Caesar, Napoleon, Moliere, Petrarch, Dostojewsky, and others. It would seem, therefore, from the above facts that, although there is such a thing as epileptic insanity, the 274 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Epidemiology. Epileptics. (SUPPLEMENT.) to suggest the restraints and discomforts of large institu- tions. There was one small cottage set aside for such cases as should become mildly insane, but bad cases of actual insanity were sent to insane asylums. Everything had been thought out carefully for the perfect evolu- tion of this little social world, not only the multiplicity and details of occupations which would give each mem- ber of the community his choice of callings, but even the avocations, games, amusements, entertainments that might tend to divert his mind from the contemplation of his misfortunes. And since my visit the colony has con- tinued to expand, to develop new and valuable features, and to confer its blessings upon large numbers of per- sons afflicted with this disease. Taking Bielefeld as a model, nine other similar epileptic colonies have been established in Germany, one at Zurich, in Switzerland, and one in Holland. Most of these are not conducted by the state, but are under the jurisdiction of private or church charities. None of them are alto- gether self-supporting, but some of them approach very near it. It should be stated that before the founding of the Bethel colony at Bielefeld, a somewhat similar institu- tion, though on a much smaller scale, was begun in France, at a village called La Force, near Lyons. Over forty years ago a noble clergyman named John Bost established this institution, and it is in a flourishing state, doing a vast amount of good and redounding to the credit of his creative genius. It has been found in all of these colonies that no harm is done by bringing epileptics into contact with each other. They feel on an equality with their fellows in such a place, losing that sense of isolation and singularity which they cannot but observe in the ordinary world as separating them from the rest of mankind. They enjoy caring for each other and being kind and helpful to their fellow-sufferers. It has been noted, too, that the number of seizures almost always diminishes upon entering upon the new and more hopeful and encouraging life begotten in the busy community. Within two or three years interest has been awakened in other countries in the matter of provision for epilep- tics, notably so in America and England, where their peculiarly sad condition had never been noted nor con- sidered. In 1890 Ohio took steps toward the establish- ment of an institution for epileptics, a commission, consisting of Messrs. J. L. Vance, C. C. Waite, and one other having been appointed by Governor Campbell, pur- suant to an act of the Legislature, to select a site and pre- pare plans for the purpose. Of various sites examined, one at Gallipolis seemed best adapted for the project, and here a tract of one hundred acres was presented to the State by the citizens for the institution. To the writer, who was consulted upon the subject of site and plans, this seemed to be the best location offered, for, although an insufficient space for a large institution, there was plenty of land adjacent which could be subsequently added to the original tract. Contrary to the advice of the writer, the architect felt obliged, probably owing to the demand of the community of Gallipolis for an insti- tution of striking proportions, to group the buildings on a symmetrical plan, such as is frequently carried out in public establishments for the insane. The Ohio epilep- tic hospital is built on the pavilion or cottage plan, a large number of these being grouped about the centre or administration building. It will therefore not meet in this important particular the requirements of a colony for epileptics, although in respect to provisions for school-buildings, shops, and the like, an effort has been made to fit the institution for the particular kind of care needed by this class. The name of the institution for epileptics in Ohio is also unfortunately chosen, for it is called " The Asylum for Epileptics and Epileptic In- sane." The corner-stone was laid with appropriate cere- monies November 12, 1891, an interesting address and historical review being given by General Roeliff Brink- erhoff, President of the Ohio State Board of Charities. Three of the buildings were completed and made ready for occupancy in 1892, and nine additional cottages are proportion of insane epileptics to sane epileptics is really very small, much less than ten per cent, taken at the utmost, and that this ratio may be reduced by affording these unfortunates such opportunities for mental and moral development as are enjoyed by other and more happily situated citizens ; and not only may the percent- age of insanity be reduced, but the comfort and prosperity of all epileptics be increased by proper provision on the part of the State, or through private channels, of institu- tions of a peculiar character adapted to their peculiar wants. A large public hospital is very far from meeting their requirements, for, as has already been shown, me- dicinal treatment is uncertain and unpromising. Insane asylums should receive but very few, and almshouses none at all. What is demanded is an institution on the ■community or village plan, where medical treatment (such as it is) may be given to every member, and where every sort of education, employment, and social privilege commensurate with his needs and conditions may be ex- tended to every beneficiary. The colony system only can attain this object. A colony for epileptics is not an impracticable scheme pro- posed by visionaries. It is already an accomplished fact. The Bethel Epileptic Colony, at Bielefeld, in the province of Westphalia, near Hanover, Germany, was founded by Pastor von Bodelschwingh, over twenty-five years ago. He purchased a small farm with one house, and with four epileptics as a beginning, established a charity which for nobility of conception and success in its results has nowhere an equal. It seemed to its benefi- cent founder feasible to create a refuge where these sufferers might be cured, if curable, might have a home if recovery were impossible, might learn trades, and the great majority become educated, useful, and industrious citizens. From that small beginning there has been a gradual evolution of his idea, until now there are over one thousand epileptics, resident in some sixty or more houses scattered irregularly but picturesquely over a large farm. Everyone who visits this unique colony is deeply im- pressed with the happiness, contentment, and prosperity everywhere apparent among the inhabitants of this little epileptic world. He sees that it is no longer an experi- ment, and the previously unanswerable objections to such aggregations are, by its success, answered and silenced. At the time of my visit to Bielefeld, in 1886, there were but eight hundred and twenty-five epileptic patients. The employments were numerous and varied. A school provided instruction for some one hundred and fifty pupils of both sexes. All branches were taught. The dairy and the farm and garden occupied the atten- tion of the greatest number of patients, especially as a large trade in vegetable and flower-seeds was carried on by the colony. Among the shops for epileptic workmen were those for carpenters, cabinet-makers, painters and varnishers, printers, bookbinders, blacksmiths and foundrymen, tailors, and shoemakers : and among the stores were a grocery, pharmacy, book-store, and a seed-store. The ■carpenters aided in the building and furnishing of new houses. Plans and drawings for new buildings were made in the architects' room. Epileptics were employed in all the departments of industry relating to building. Books were printed and bound, and sold here, especially popular works for moral and religious instruction. The illumination of mottoes for hospital wards and school- rooms, and the coloring of picture-cards were features of the work performed; washing, cooking, knitting, sewing, and fancy-work employed many. A bureau had been established for the collection and sale of mu- seum objects, such as antiquities, articles of ethnographic and historic interest, autographs of distinguished people, coins, stamps, bronzes, gems, engravings, etc., and speci- mens from the animal, vegetable, and mineral kingdoms. For men alone there were over thirty different callings. The houses presented great diversity of architecture and position. They were well separated, generally in- closed in individual gardens, surrounded by fences or hedges and many trees, and altogether exhibited the home-likeness of a country village, with little or nothing 275 Epileptics. Epileptics. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. now in course of construction, the last Legislature having made a liberal grant for the purpose. In California detached buildings are being erected upon the grounds of the California Home for Feeble- minded in Sonoma County, with the view of accommo- dating the epileptics dependent upon the State in pleas- ant quarters. Active measures are being carried out also in Massa- chusetts, Pennsylvania, Wisconsin, and Illinois, for the purpose of procuring State care and separate provision for the same class of unfortunates. Next to Ohio, the State of New York has manifested the most interest in her epileptic dependents, and in the winter session of 1891-92 a law was passed by the Legis- lature making the State Board of Charities a Commission to select a site and prepare plans for an institution for epileptics. The law was authoritative in requiring the tract of land secured for the purpose to be four hundred acres or more in extent, and the whole scheme of build- ings to be arranged on the colony or village plan. A committee of the State Board of Charities, consisting of Messrs. Oscar Craig, William P. Letchworth, and Peter Walrath, has been busy all of the past summer and autumn (1892) in examining a large number of localities which they were invited to inspect by the officers of va- rious counties. In their report made to the Legislature on Wednesday, January 11, 1893, the State Board of Chari- ties unanimously recommended for the proposed, colony a site in Livingston County, consisting of over eighteen hundred acres, the property of the " Shakers," now known as the Sonyea Society of United Christian Be- lievers. The Shakers have dwindled in numbers to such an extent that they decided to give up this colony and rejoin the mother colony near Watervliet, N. Y. The land is beautifully situated in the Genesee Valley, near the town of Mount Morris, and in one of the finest re- gions of the State. It is exactly fitted to meet the wants of a model colony for epileptics. It is traversed by two streams. One of these, the Cashauqua Creek, flows through the middle of the land in a deep gorge, with a fall of one hundred feet. This gorge and creek are of immense advantage for the complete separation of the sexes in free colony life. The supply of water is abun- dant, and the conditions for good sewerage perfect and adequate in every respect. The Western New York & Pennsylvania Railroad runs through the land, and two great trunk lines, the Erie Railway and the Delaware & Lackawanna Railroad, are within a mile of the proposed colony. The soil is exceedingly fertile and well adapted for all manner of agriculture, horticulture, the produc- tion of berries and fruits for canning industries, and the raising of garden produce and seeds of all kinds. It has some stone and brick clay, which will prove useful in the development of certain forms of out-of-door employ- ments. It already contains scattered buildings for the accommodation of three hundred patients. The law which has been introduced into the present session of the New York Legislature embodies provis- ions for the purchase of this tract of land, and also for the methods of management, government, and admission of patients to the colony. As some of these may be use- ful to those interested in the establishment of similar in- stitutions, a few of the chief points will be mentioned here and the entire law given below. The name of the institution is " The Sonyea Colony." Thus any direct reference to its object is avoided in the title. The word " Sonyea" is an old Indian word, mean- ing sunshine, and is historical in that this point was once the site of an ancient Indian village of the same name. For the present all insane epileptics are to be excluded, but probably ultimately there will be some building for the insane, especially for such as become mentally deranged temporarily while residents of the colony, since their removal from the happy influences of the community system to an asylum for the insane would be very de- pressing and tend to retard rather than promote their recovery. There are to be nine managers appointed by the Gov- ernor, two of whom are to be women and two to be (SUPPLEMENT.) physicians. They are to represent the eight judicial dis- tricts of the State of New York, an additional member to represent the City of New York. The colony is to have a medical superintendent, stew- ard, matron, and such teachers and other assistants as are necessary. The main object of the colony is to provide for the in- digent epileptics of the State, but private patients will also be admitted to an extent to be determined by the Board of Managers. Epileptics of all ages are to be re- ceived and cared for ; minors are detained by authority delegated by the parents or guardians ; adults are free to go or remain, as they choose, there being no deprivation of liberty of any kind by methods of legal commitment, such as are necessary in asylums for the insane. The charge for maintenance of indigent patients is to be borne by the State, and a limit of $250 per annum per capita is established by the law. But it is expected that the colony will eventually become, to a very great extent, self-supporting. Patients that become insane are to be sent to asylums in the districts from which they come, in accordance with the lunacy statutes. A special pathologist to reside in the community and devote his sole attention to the discovery of the causes and cure of epilepsy is one of the features ultimately contemplated in connection with this great institution. An Act to Establish an Epileptic Colony.-Sec- tion 1. Sonyea Colony. There shall be established in Livingston County, in this State, a colony for epileptics, to be known as the Sonyea Colony. Sec. 2. Objects of such Colony. The objects of such colony shall be to secure the humane, curative, scientific, and economical treatment and care of epileptics, exclusive of insane epileptics ; to fulfil which design there shall be provided, among other things, a tract of fertile and productive land, in a healthful situation, with an abun- dant supply of wholesome water, sufficient means for drainage and disposal of sewage, and sanitary conditions ; and there shall be furnished, among other necessary structures, cottages for dormitory and domiciliary uses, buildings for an infirmary, a school-house, and a chapel, workshops for the proper teaching and productive pros- ecution of trades and industries ; all of which structures shall be substantial and attractive, but plain and moderate in cost, and arranged on the colony or village plan. Sec. 3. Managers of the Colony. There shall be a board of nine managers of the Sonyea Colony, seven of whom shall be men, and two of whom shall be women, appointed by the Governor, by and with the advice and consent of the Senate. Two of said managers shall be well-educated physicians ; and all of them shall be citi- zens of the State, and residents respectively as follows : one in each of the eight judicial districts of the State, with one additional manager for the city and county of New York ; but no manager shall reside in the town where said colony is located, or in Livingston County. The full term of office of each appointed manager shall be eight years, after the first appointments ; and the term of office of one of such managers shall expire an- nually. To effect such order of expiration of terms of managers, the first appointments shall be made for the respective terms of eight, seven, six, five, four, three, two, and one years. Appointments of successors, and of persons to fill vacancies occurring by death, re- signation, or failure in attendance at meetings shall be made without unnecessary delay. Failure of any mana- ger to attend in each year the whole of two stated meet- ings of the board, shall cause a vacancy in his office. The managers shall receive no compensation for their services, but shall be allowed their reasonable travelling and official expenses, when duly*verified and approved by an auditing committee of the board, and duly pre- sented to the Treasurer of the colony for payment. Sec. 4. Land. The Board of Managers, within sixty days from their appointment, shall submit to the Attorney- General the land contract with option in the State, re- ported to the Legislature by the State Board of Charities at this session, and an official search and abstract of the 276 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Epileptics. Epileptics. (SUPPLEMENT.) and papers may be attested by the secretary, with, or without a seal ; and when attested under seal shall be received in evidence as if duly acknowledged before an officer authorized to take acknowledgments of deeds. The managers shall establish such by-laws as they may deem necessary or expedient for regulating the appoint- ments, powers, and duties of officers, teachers, attendants, and assistants, for fixing the conditions of admission, treatment, education, support, and discharge of patients, and for conducting in a proper manner the business of the colony ; and they shall ordain and enforce a suitable system of rules and regulations, for the internal govern- ment, discipline, and management of the colony. The managers shall maintain an effective inspection of the affairs and management of the colony, for which purpose they shall meet at the institution at least twice in each year, at such times as the by-laws shall prescribe, provided that their annual meeting shall be held on the fifteenth day of October. A committee of three managers, to be appointed by the Board at the annual meeting thereof, shall visit the colony once in every month, and perform such other duties and exercise such other powers as shall be prescribed in the by-laws or directed by the Board. The Board shall keep in a bound book to be provided for the purpose a fair and full record of all its doings, which shall be open at all times to the inspection of its members, the members and officers of the State Board of Charities, and all persons whom the Governor or either house of the Legislature may appoint to examine the same. Sec. 9. Officers of the Colony. The Board of Man- agers shall appoint, outside its members, two officers, namely : a superintendent of the colony, who shall be a well-educated physician and a graduate of a legally char- tered medical college, with an experience of at least five years in the practice of his profession ; and a treasurer, who shall reside in the county of Livingston, and shall give an undertaking to the people of the State, for the faithful performance of his trust, in such penal sum and form and with such sureties as the Comptroller shall ap- prove. Said officers and each of them may be discharged or suspended at any time by the said Board in its discretion. The superintendent shall appoint a steward and a matron, who, with the superintendent, shall constantly reside in the colony, and he shall employ an experienced and competent bookkeeper, and such teachers, attend- ants, and assistants as he may think necessary or proper economically and efficiently to carry into effect the de- sign of the colony ; and he shall prescribe their several duties and places and fix their compensation ; and he may, at any time in his discretion, suspend or discharge any of them. The Board shall determine the annual salaries and allowances of the superintendent, steward, and matron, not exceeding, in addition to maintenance supplies, the following sums for salaries : Four thousand dollars to the superintendent ; fifteen hundred dollars to the steward ; fifteen hundred dollars to the matron, and the Board shall determine the annual salary of the treas- urer of the colony, not exceeding two thousand dol- lars. Such salaries and allowances shall be paid quarterly on the first days of October, January, April, and July, each year, by the treasurer of the colony, on presentation of the bills therefor, audited, allowed, and certified as prescribed in the by-laws. Sec. 10. Duties of Superintendent. The superinten- dent shall be the chief executive officer of the colony, and, subject to the supervision and control of the Board of Managers, he shall discharge the following among other duties : 1. Oversee and secure the individual treatment and personal care of each and every patient of the colony while resident therein, and the proper oversight of all the inhabitants thereof. 2. Have the general superintendence of the buildings, grounds, and farm, with their furniture, fixtures, and title of the tract of land described in said contract, con- taining eighteen hundred acres, more or less, lately oc- cupied and owned by the United Society of Christian Believers, situated in Livingston County ; and if such title be approved by the Attorney-General, and certified by him to be good and free from incumbrance, the Board of Managers shall, within thirty days thereafter, accept a good and sufficient deed of conveyance of said tract of land to the State, to be approved by the Attorney-Gen- eral ; and thereupon the Treasurer of the State, on the warrant of the Comptroller, shall pay therefor, as herein- after provided, the consideration of $125,000, with pro- portionate reduction for deficiency, if any, in the quan- tity of land, which is assumed in said contract to be at least eighteen hundred acres for said purchase price. Provided, that if such title shall not be approved, or such deed with a good title free from incumbrance cannot be secured, the Board of Managers shall, so soon as prac- ticable, report the facts to the Legislature. Sec. 5. Buildings and Improvements. Upon securing the conveyance of said tract of land to the State, with the approval of the Attorney-General as aforesaid, the Board of Managers shall immediately put the premises thus conveyed into proper condition for reception of patients ; and shall receive them gradually and as rapidly as practicable ; and for such uses and purposes shall utilize the present buildings and improvements upon said premises, and adopt a general design including the same, and the recommendations of the State Board of Charities in its said report, and subsequently from the beginning to the end, make all buildings and improvements sub- serve such design and recommendations and true econ- omy. Sec. 6. Donations in Trust. The managers may take, and hold in trust for the State, any grant or devise of land, or any gift or bequest of money7 or other personal property, or any donation, to be applied, principal or in- come or both, to the maintenance and education of epi- leptics, and the general uses of the colony. Sec. 7. State Board of Charities. The Board of Managers of the Sonyea Colony shall annually, on or before the first day of November, for the preceding fis- cal year ending September 30th, report to the State Board of Charities the affairs and conditions of the colony, with full and detailed estimates of the next appropriation required for maintenance and ordinary uses and repairs; and of special appropriations, if any, needed for extraordinary repairs, renewals, exten- sions, improvements, betterments, or other necessary7 ob- jects ; as also for the erection of additional buildings needed by reason of over-crowding, and in order to pre- vent the same, or to meet the need of sufficient accommo- dations for patients seeking admission to the colony, and the State Board of Charities shall, in its annual report to the Legislature, certify what appropriations are, in its opinion, necessary or proper. The said colony shall be subject to the visitation and supervision and to the general powers of the State Board of Charities. Sec. 8. Powers and Duties of Managers. Five mem- bers of the Board of Managers shall constitute a quorum for the transaction of business. The Board shall have the government of the patients, officers, employees, in- mates, and inhabitants of the colony, and the general di- rection and control of all the persons, property, and con- cerns of the colony, not otherwise provided for by7 law ; including the purchase of supplies and of raw materials for the trades and industries of the colony, and the sale and disposal of the manufactured products and the prod- uce of the land, through its officers or agents, and the supply of necessary7 assistance to educate and profitably employ the labor of the patients ; and shall take charge of the general interests of the colony, and see that its general design is carried into effect, and everything done faithfully and according to the requirements of the Legis- lature and the by-laws, rules, and regulations of the col- ony. The managers shall elect from their number a presi- dent and a secretary, and may secure a seal. Documents 277 Epileptics. Epileptics. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) stock, and the direction and control of all persons em- ployed in and about the same. 3. Give, from time to time, such orders and instruc- tions as he may deem best calculated to induce good conduct, fidelity, and economy in any department of labor, or of education or treatment of patients. 4. Maintain salutary discipline among all employees, patients, and inhabitants of the colony, and enforce strict compliance with his instructions and uniform obedience to all the rules and regulations of the colony. 5. Cause full and fair accounts and records of the en- tire business and operations of the colony, with the condi- tion and prospects of the patients, to be kept regularly, from day to day, in books provided for that purpose. 6. See that such accounts and records shall be fully made up to the first days of April and October in each year, and that the principal facts and results, with his report thereon, be presented to the Board at its semi- annual meetings. 7. Conduct the official correspondence of the colony and keep a record or copy of all letters by himself and by his clerks and agents, and files of all letters received by him or them. 8. Prepare and present to the board at its semi-an- nual meetings a true and perfect inventory of all the personal property and effects belonging to the colony, and account, when required by the Board, for the careful keeping and economical use of all furniture, stores, and other articles furnished for the colony. 9. Keep a record of all applications for admission of patients, and enter in a book, to be provided and kept for that purpose, at the time of the admission of each patient to the colony, a minute, with the date, name, res- idence of the patient, and of the persons on whose appli- cation he is received, with a copy of the application, statement, certificate, and all other papers received re- lating to such epileptic patient, the originals of which he shall file and carefully preserve, and certified copies whereof he shall forthwith transmit to the State Board of Charities. Sec. 11. Duties of Treasurer. The treasurer, among his other duties, shall perform the following : 1. Have the custody of all moneys, notes, mortgages, and other securities and obligations belonging to the colony. 2. Keep a full and accurate account of all receipts and payments in such form as directed in the by-laws, and such other accounts as shall be required of him by the managers. 3. Balance all the accounts on his books on the first day of each October and make a statement thereof, and an abstract of all the receipts and payments of the past year ; and, within three days thereafter, deliver the same to the auditing committee of the managers, who shall compare the same with his books and vouchers and ver- ify the same by a further comparison with the books of the superintendent, and certify the correctness thereof to the managers at their annual meeting. 4. Render a quarterly statement of his receipts and payments to such auditing committee, who shall, in like manner as above, compare, verify, report, and certify the result thereof to the managers at their annual meet- ing, who shall cause the same to be recorded in one of the books of the colony. 5. Render a further account of the state of his books and of the funds and other property in his custody whenever required by the managers. 6. Receive for the use of the colony any and all sums of money which may be due upon any obligations or securities in his hands belonging to the colony, and any and all sums charged and due to the asylum for the sup- port of any patient therein, or for actual disbursements made in his behalf for necessary clothing and travelling expenses, and any and all sums of money due to the colony. 7. Prosecute an action in the name of the people of the State to recover any sum of money that may be due or owing to the colony from all sources, including the bringing of suit for breach of contract between private patients or their guardians and the managers of the col- ony. 8. Execute a release and satisfaction of a mortgage, judgment, or other lien in favor of the colony when paid, so that the same may he discharged from record. 9. Pay the salaries of the superintendent, treasurer, the matron, and the steward of the colony, and of em- ployees duly appointed as aforesaid, and the disburse- ments of the officers and members of the board as afore- said. The treasurer shall have power to employ counsel, subject to the approval of the Board of Managers. Sec. 12. Designation and Admission of Patients. There shall be received and gratuitously supported in the colony, epileptics residing in each judicial district, who, if of age, are unable, or, if under age, whose parents or guardians are unable to provide for their support therein, and who shall be designated as State patients. Such additional number of epileptics, whether of age or under age, as can be conveniently accommodated, shall be received into the colony by the managers on such terms as shall be just, and shall be designated as private patients. Epileptic children shall be received into the colony only upon the written request of the persons desiring to send them, stating the age, place of nativity, if known, Christian and surname, the town, city, or county in which such children respectively reside, and the ability of their respective parents or guardians or others to provide for their support, in whole or in part, and if in part only, stating what part; and stating also the degree of rela- tionship or other circumstances of connection between the patients and the persons requesting their admission, which statements, in all cases of State patients, must be verified by the affidavits of the petitioners and of two dis- interested persons, and accompanied by the opinion of a qualified physician, all residents of the same county with the epileptic patient, and acquainted with the facts and circumstances stated, and who must be certified to be credible by the County Judge or Surrogate of the county, and such judge or Surrogate must also certify, in each case, that such State patient is an eligible and proper candidate for admission to the colony. State patients, whether of age or under age, may also be received into the colony upon the official application of a County Superintendent of the Poor, or of the Com- missioners of Charity or Overseers of the Poor of cities or towns having such officers. It shall be the duty of the Superintendent of the Poor in every county, and of the Overseer, Commissioner, or Board of Commissioners of every city having supervision of the poor, to furnish annually to the State Board of Charities a list of all epileptics in their respective juris- dictions, so far as the same can be ascertained, with such particulars as to the condition of each epileptic as shall be prescribed by the said State Board. Whenever an epileptic shall become a charge for his or her maintenance on any of the towns, cities, or coun- ties of this State, it shall be the duty of all Overseers or Charity Commissioners, or other officers of the poor of such city, and of the County Superintendent of the Poor, and of the Supervisors of such county, to place such epi- leptic in the said colony. Any parent, guardian, or friend of an epileptic child within this State may make application to the Overseer or Charity Commissioner, or Board of Commissioners or other officers having charge of the poor of any city or town, or the Superintendent of the Poor of any county, or the Board of Supervisors or any Supervisor of such county where such child maybe, showing by satisfactory affidavit, or other proof that the health, morals, comfort, or welfare of such child may be endangered or not prop- erly cared for if not placed in such colony ; and there- upon it shall be the duty of such Overseer, Charity Com- missioner, Poor Officer, Superintendent of the Poor, or Supervisor or Board of Supervisors, to whom such appli- cation may be made, to place such child in the said col- ony, provided that in all cases not properly coming un- der section thirteen relating to the support of State 278 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Epileptics. Epileptics. patients, the Board of Supervisors shall provide for the support of such cases, and may recover the same from the parents or guardians of such children. In the admission of patients, preference shall always be given to poor or indigent epileptics or the epileptic children of poor or indigent persons, over all others ; and preference shall always be given to such as are able to support themselves only in part, or who have parents able to support them only in part, over those who are able, or who have parents who are able wholly to furnish such support. Sec. 13. Support of State Patients. Each indigent patient and each patient who is the child of indigent parents received into the colony as aforesaid, shall be pro- vided with proper board, lodging, medical treatment, care, and tuition ; and shall be denominated State patient; and the managers of the colony shall receive for each of such patients so provided for, the sum necessary for such provision and purpose, not to exceed the sum of two hundred and fifty dollars per annum, the intent of this act being that the colony shall be self-supporting so far as practicable ; which payments, if any, shall be made by the Treasurer of the State, on the warrant of the Comptroller, to the treasurer of the said colony, on his presenting the bill of the actual time and number of patients in the colony, signed and verified, by the super- intendent and treasurer of the colony, and by the presi- dent and secretary of its Board of Managers. The Supervisors of any county, from which such State patients may have been received into the colony, shall cause to be raised annually, while such patients remain in the institution, the sum of thirty dollars, for the pur- pose of furnishing suitable clothing for each of such State patients ; and the same shall be paid to the treas- urer of the colony, on or before the first day of April of each year. Sec. 14. The Support of Private Patients. The super- intendent of the colony may agree with any epileptic who may be of age, or his committee or guardian, or with the parents, guardian, or committee of any epileptic child, or with any person, for the entire or partial support, main- tenance, clothing, tuition, training, care, and treatment of such epileptic in the colony, on such terms and conditions as may be prescribed in the By-laws, or approved by the managers. Every parent, guardian, committee, or other person applying for the admission into the colony of an epileptic who is, or whose parents or guardians are, of suf- ficient ability to provide for his support and maintenance therein, shall, at the time of his admission, deliver to the superintendent an obligation, with one or more sureties, to be approved by the superintendent and treasurer, in such manner and penalty as the managers shall prescribe, to the effect that the obligors will pay to the treasurer of the colony all sums of money at such time or times as shall be so agreed upon, and remove such epileptic from the colony, free of expense to the managers, within twenty days after the service of the notice hereinafter provided for. If such epileptic, his parents or guardian are of sufficient ability to pay only a part of the expenses of supporting and maintaining him at the institution, such undertaking shall be only for such partial support and maintenance and for removal from the institution as above mentioned ; and the superintendent may take security by such obligation, or in his discretion by note or other written agreement, with or without sureties as he may deem proper, for such part of such expenses as the epileptic, his parents or guardians are able to pay ; but such exercise of discretion shall be subject to the ap- proval of the treasurer and a committee of the managers, in the manner that shall be prescribed in the By-laws. Notice to remove a patient shall be in writing, signed by the superintendent and directed to the epileptic, his parents, guardians, committee or other person upon whose request the patient was received at the colony, at the place of residence mentioned in such request, and de- posited in the post-office at Sonyea, or any post-office in Livingston County, with the'postage prepaid. Sec. 15. Discharge of Patients. The superintendent of the colony, with the approval of the managers or of its committee duly empowered, shall have power to dis- charge patients ; provided that no epileptic patient shall be returned to any poorhouse directly through a super- intendent of the poor, or otherwise. In case a patient, not an epileptic, shall be sent to the colony, through mistaken diagnosis of his disease, or other cause, and there received, such patient shall be returned to, and the travelling expenses of such return shall be paid by the person who sent him or her to the colony. Should an epileptic patient become insane, and be so certified, as prescribed by the statute, such patient, if a State patient, shall be sent to the State Hospital of the district of which he was a resident just prior to his admis- sion to the colony, or, if a resident of New York to the asylum of that county, of if a resident of Kings to the asylum of that county. Said State patient shall be sent to said State Hospital, or County Asylum, in a manner prescribed by the President of the State Commission in Lunacy, at the expense of the State, and any State Hos- pital or County Asylum to which said patient is to be sent may be required, by and under the regulations made by said President, to send a trained attendant to bring the patient to the hospital or asylum. In all cases there shall be provided a female attendant for every female patient. The bills for the reasonable expenses incurred in the transportation of State patients to the State Hospitals, or Asylums of New York and Kings Counties, after they have been approved in writing by the State Commission in Lunacy, shall be paid by the Treasurer of the State on the warrant of the Comptroller from the funds provided for the support of the State Hospitals. In case any insane person, his relatives, guardians, or friends desire that he may become an inmate of any State Hospital situated beyond the limits of the district of which he was formerly a resident, or outside of New York and Kings, if a resident of either of those coun- ties, and there be sufficient accommodation there to receive him, he shall be received there upon the same grounds and terms, and the same in all respects as are or may be at any time provided by law, respecting transfers of other insane persons. Private patients, who may become insane, and are so certified, as prescribed by law, shall be committed, sub- ject to the regulations of the State Commission in Lunacy to such institution for the insane as may be designated by such patient, his or her relatives, guardians, or friends, all travelling and other expenses of removal to be paid by them. After any patient has been delivered to the managers or officers of any of said hospitals or asylums, the care and custody of the managers of the colony over such insane person shall cease ; and after any patient shall, as afore- said, be so certified to be insane as prescribed by law, such patient shall come under the supervision of the State Commission in Lunacy. Sec. 16. Apportionment of State Patients. Whenever applications are made at one time for admission of more State patients than can be properly accommodated in the colony, the managers shall so apportion the number re- ceived that each county may be represented in a ratio of its dependent epileptic population to the dependent epi- leptic population of the State as shown by statistics fur- nished by the State Board of Charities. Sec. 17. Notice of Opening of Colony. So soon as the colony shall be ready for the reception of patients, it shall be the duty of the Board of Managers officially to notify the County Clerks and the Clerks of the Boards of Supervisors of the respective counties of the State, and the Secretary of the State Board of Charities ; and to furnish said clerks of the counties and of the Boards of Supervisors with the suitable blanks for admission and entrustments of epileptics to such colony. Sec. 18. Appropriations. The sum of one hundred and fifty thousand dollars, or so much thereof as may be necessary, is hereby appropriated for the purposes of this act, out of any moneys in the treasury not otherwise ap- propriated. The Treasurer of the State shall, on the 279 Epileptic*. Eugenol. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. warrant of the Comptroller, pay to the treasurer of the Board of Managers of said colony, such sums as may from time to time be required for the purchase of land, improvements, and betterments, erection of buildings and furnishing the same, heating, lighting, and ventilating the same, and putting the lands and buildings into proper con- dition for the reception of patients, not to exceed one hun- dred and twenty-five thousand dollars for the purchase of the land as hereinbefore provided, and not to exceed twenty-five thousand dollars for such other purposes; provided that such purposes and all requirements upon which such payments shall be made shall be certified to the Comptroller by said Board of Managers, in writing, specifying the items, the purposes for which the said sums are required, and be verified by the affidavit of the superintendent and treasurer of the colony, and of the president and secretary and majority of the said Board of Managers. Sec. 19. This act shall take effect immediately. While these measures have been in progress in the United States, a similar movement has been inaugurated in England. The Countess Meath has established at Godaiming a small home for epileptics, in which instruc- tion and occupation are among the principal features aimed at. There has been organized in Great Britain also a National Society for the Employment of Epilep- tics which numbers among its members many medical men of eminence and many citizens of wealth and influ- ence. This society proposes to acquire a tract of land in England for the purpose of colonizing epileptics, accord- ing to the system herein advocated. The care of the epileptic population is then to be sum- marized as follows: All are to be treated in accordance with the usual regulations as to diet, hydrotherapy, and medicinal agen- cies, with the hope that in this way between one and six per cent, of them may be cured, and the disorder in a larger percentage ameliorated. Out-of-door employment in agriculture and kindred pursuits is to be provided in abundance. All manner of trades and occupations are to be carried on in an epi- leptic community, organized on the village plan. Facili- ties for education are to be afforded to almost every extent. Amusqment and entertainment and the enjoyment of social intercourse are to be privileges from which no epileptic will hereafter lie debarred. In this way the happiness of a large number of these miserable creatures will be materially increased, in spite of the distressing disease which they are called upon to suffer, usually for the whole of their lives ; and though remedial agents applied to their malady may prove in- efficient, their fate can never lie as wretched or hopeless as it has been throughout the world heretofore. Although it is not given to every epileptic to describe his own sufferings as Dostojewsky does in his novel " The Idiot," or to delight the world with music as did the epileptic Handel, or with comedy as did Moliere, or with poetry as did Petrarch, or with military exploits as did Caesar and Napoleon, or with religion as did Ma- homet and St. Paul, still it is a consolation to those afflicted with this malady to know that epilepsy and genius may coexist, and that the possession of the disease does not necessarily lead to mental and moral degenera- tion. The patient may not reach the highest position among mankind, but under the new dispensation he will not be withheld from any attainment in education, nor prevented from exercising all of his capabilities for his own support and for his own welfare and happiness. Literature. Peterson, Frederick, M.D. : The Bielefeld Epileptic Colony, New York Medical Record. April 23. 1887. Peterson, Frederick, M.D. : The Colonization of Epileptics, Journal of Nervous and Mental Disease, December. 1889. Peterson, Frederick. M.D. : A Plea for the Epileptic, State Charities Record, June, 189'). Vance, J. L., Waite. C. C. (Commissioners), ami J. W. Yost (Archi- tect) : Report of Commission to Select Site and Prepare Plans tor the (SUPPLEMENT.) Accommodation of the Epileptic and Epileptic Insane to the Governor of the State of Ohio, December 31, 1890. Peterson. Frederick, M.D. : State Provision for Epileptics, Address of Chairman of Health Department, American Social Science Association, at Saratoga me. ting, September, 1891 Peterson, Frederick, M.D. : State Care for Epileptics, New York Sun, January 11, 1891. Peterson, Dr. F., and Jacoby, Dr. Gi W. : The Care of the Epileptic, Report of Sub-Committee of State Charities Aid Association, State Charities Record, February, 1891. Stryker, Rev. Peter: A Much-needed Philanthropy, Illustrated Christian Weekly, January 31, 1891. Brinkerhoff, Gen. R. : Address on Laying Cornerstone of the Asylum for Epileptics at Gallipolis, O., Ohio State Journal, November 13, 1891. Ewart. Dr. Theodore C. : Colonization of Epileptics, Journal of Mental Science. June, 1892. Peterson, Frederick, M.D. : Outline of a Plan for an Epileptic Colony, New York Medical Journal, July 23, 1892. Peterson. Frederick, M.D. : The Care and Colonization of Epileptics, Journal of Nervous and Mental Disease, Aueust. 1892. Taylor, Dr. Madison J. : The Care of Epileptics, University Medical Magazine, 1891-92. Drs. Henry R. Stedman. W. N. Bullard, and L. W. Raker, in this country, have also contributed to the movement for better care for epi- leptics, especially in their State of Massachusetts. Frederick Peterson. ETHYL CHLORIDE. This has recently been intro- duced as a local anaesthetic, and promises to prove of de- cided value. It is obtained by saturating an artificially cooled alcoholic solution of chloride of zinc with hydro- chloric-acid gas. It is also obtained as a by-product in the manufacture of chloral. Its chemical formula is C2H5CI4. At ordinary temperatures it is a gas, but is easily compressed into a colorless liquid with a pleasant ethereal odor. Below 50° F. it remains a fluid, but at that temperature it is volatilized and becomes a light and very inflammable gas. Advantage has been taken of its rapid evaporation to utilize the intense cold produced, as a local anaes- thetic, in dental and minor surgical practice, and for the relief of the pain of superficial neuralgia. It has been used with satisfaction for the extraction of teeth, open- ing of abscesses, removing ingrowing toe-nails, and similar painful operations, and has been found to give in- stantaneous relief in facial neuralgia, intercostal neural- gia, and sciatica. The method of utilizing this property has been made simple and easy by M. Monnet, of Lyons, who sug- gested the storing of the compressed fluid in small cap- sules and tubes, by which means it may be preserved without alteration for a great length of time. When the drug is required for use the point of the capillary tube is broken off, and the opening directed downward on the part to be anaesthetized. The heat of the hand is suf- ficient to raise the temperature of the fluid above its boiling point, and a stream of the rapidly volatilizing fluid issues as a spray, and may be applied to any part. The stream may be made weaker or arrested by simply closing the opening with the finger, or made stronger by grasping a larger portion of the tube and raising the tem- perature of its contents. It is considered best to hold the tube from six to ten inches away from the surface, to avoid excessive and useless cold. Each tube contains about two and a half drachms, which is sufficient to an- nul the sensibility of the skin and the parts immediately beneath, over a surface and to a depth sufficient for small operations. For the removal of teeth the spray is to be directed on the mucous membrane of the gum. The membrane is first dried and then rubbed with glycerine or oil, and the spray applied until the part becomes white. The sound teeth, as well as the mucous membrane of the mouth, must be protected by a napkin, and the patient directed to breathe only through the nos- trils. It is said that the teeth may be extracted with- out pain by directing the spray against the cheek, over the inferior maxillary nerve for the lower jaw, and at the exit of the trigeminal nerve, in front of the ear, for the upper jaw. It is simple in application and requires no apparatus, which gives it a decided advantage over methyl chloride, CHgCl, which has also been used for the same purpose. The low boiling-point of this older anaesthetic(- 1.4° F.) 280 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Epileptic*. Eugenol. requires a careful management to control its action and avoid excessive freezing and destruction of tissue. Methyl chloride also at times affects the system, causing more or less disturbance of the brain and mental facul- ties. Ethyl chloride in no way produces any effect be- yond its local action. Its one objectionable feature is its great inflammability, which must be guarded against by performing the operation at a distance from a flame. Drs. H. C. Wood and Cerna report in the Therapeutic Gazette, August, 1892, a series of experiments upon the anaesthetic properties of ethyl chloride when administered by inhalation. Anaesthesia was produced in the animal when the fluid was poured into a closed cone, almost im- pervious to air, and held closely to the nostrils. The anaesthesia was rapid and of short duration, ten grammes producing insensibility for only two minutes. It also caused the desired effect when injected into the veins, but failed to do so when the vapor was forced into the lungs through a tube inserted into the trachea. As a result of their experiments they conclude : (1) That the chloride of ethyl is capable of acting as an anaesthetic, but that it is eliminated with extraordinary rapidity, and that its action is extremely fugacious ; (2) that the anaesthesia which it produces is always accom- panied by a fall of the blood-pressure, which is probably, at least in part, due to a direct depressing effect of the drug upon the heart ; (3) that the action of the drug upon the circulation is in no way dependent upon its influence upon the respiration, although it is not certain that the pronounced depression of the blood-pressure is not a factor in influencing respiratory movement ; (4) that, at least in the dog, chloride of ethyl produces at first an increase of the respiratory movement, either in rate or amount, or more commonly in each respect, but that finally respiration becomes slow, and at last stops ab- ruptly ; (5) that usually, if not always, the cessation of heart-beat and the arrest of respiratory movement occur as nearly simultaneously as may be. They think that the fugacious action and its depressing effects will pre- vent its becoming used as a safe anaesthetic, but are sat- isfied that the small amount that may be inhaled during its local use for dental purposes, has practically no effect on the system, as it is very rapidly eliminated. Beaumont Small. ETHYLENE BROMIDE. This organic compound has been introduced into therapeutics as a convenient means of supplying bromine in cases where its use is indicated for a prolonged period. The advantage claimed for it is, that it is not combined with potassium, sodium, or any basylous radicle, and its use does not disturb the diges- tion, the skin, or the mucous membranes, or produce any of the unpleasant effects that the older salts are liable to cause. It is the di-brom derivative of ethane, in which each bromine atom is attached to a separate carbon atom ; its chemical formula is C2H4Br2. It is a colorless or faintly brown liquid, containing 90.9 per cent, of bromine. The odor is agreeable and taste sweetish. Its specific gravity is 2.163 at 69.8° F. Below 48° F. it becomes a solid, forming crystals. It is insoluble in water, soluble 1 in 4 of rectified spirit, and miscible in all proportions with absolute alcohol and oils. The employment of ethylene bromide in epilepsy has been recommended by Dr. J. Donath.1 He used it in a great number of cases, and reports the details of ten cases in which he was able to watch its effects carefully. As a substitute for the bromides he found it very satisfac- tory, and the results he considers were much better. The cases were all of long standing and had been subjected to many forms of treatment Under its use the attacks be- came milder, shorter, and fewer in number, and in many instances assumed the character of petit mal. In three of the cases the convulsions were replaced by simple muscular twitchings without loss of consciousness. The dose administered was six to twelve drops three times a day. It may be given in capsules with oil or in solution. The following preparations are recommended : (1) Ethylene bromide, 75 grains ; oil of almonds, emulsion, (SUPPLEMENT.) 1,500 grains ; oil of peppermint, 2 drops ; dose, thirty drops three times a day, in a third of a glass of milk. (2) Ethyl- ene bromide, 75 grains ; rectified spirits, 75 grains; oil of peppermint, 2 drops ; dose, live to ten drops three times a day. In preparing these mixtures the high specific gravity must not be forgotten, it being nearly two and a half times as heavy as water. Before using the drug Donath tested its action on himself, and found that in ordinary doses it did not produce any disturbing effects ; but in large doses it was sometimes followed by nausea. This drug must not be mistaken for ethyl bromide, which it resembles both in name and appearance. A case is reported2 in which such a mistake was made with fatal consequences. A written order for the anaesthetic, ethyl bromide, was sent to a druggist, who supplied ethylene bromide. Ten drachms were inhaled without producing any insensibility or anaesthesia. The admin- istration was followed by suppression of urine and un- controllable vomiting, which continued until the patient died, upon the following day. At the post-mortem exam- ination there was found an hyperaemia of the meninges of the brain, also of the lungs, spleen, and kidneys. The liver was much enlarged, of a dirty-yellow color, and the cells were affected by a granular degeneration. Beaumont Small. 1 British Medical Journal, July 11, 1891. 2 The London Lancet, January 10,1891. ETRETAT. One of the most frequented seaside resorts on the Channel coast. Etretat is in the Depart- ment of Seine-Inferieure, France. It is situated between two cliffs, over 250 feet high, and is famous for its pict- uresque appearance. It was formerly a mere fishing village, but is now very fashionable, so that at the height of the season, in July and August, it is often impos- sible to secure proper accommodation. Baughan, in the " Northern Watering Places of France," gives the follow- ing description of the bathing peculiarities : The beach of Etretat is lower than the sea at the high tides, from which it is protected by a dyke of bowlders, which, however, is constantly being removed by the waves, which lash the shore with great violence at cer- tain seasons of the year; so much so that it is the custom at Etretat every year at the/efe of Ascension Day for the priests to go down to the shore to pronounce a benedic- tion on the sea, and to exhort, it to respect its limits. Picturesque and charming as Etretat is, the bathing is not so pleasant as in other places along the coast, for apart from the fact that the bowlders are not such a pleasant footing as sand, the bathing is dependent on the state of the tide, and, therefore, hours of meals, oc- cupations, and even the amusements of the place, seem to depend on the tide. Edmund C. Wendt. EUGENOL, EUGENIC ACID, is formed from the oil of cloves by oxidation ; it may also be obtained from other essential oils, as cinnamon, bay, pimento, sassafras. Its chemical composition is Cells. C31I6(OH) (OCTI3). It is an aromatic, oily liquid, colorless, with a strong clove odor. On exposure to the air it turns brown. It is read- ily soluble in alcohol but only very sparingly so in water. It forms compounds of a definite character with caustic alkalies. It possesses powerful antiseptic properties which are said to be superior to those of phenol. It has also been recommended as a febrifuge, but is inferior to salicylic acid, quinine, antipyrine, etc. Eugenol, which is somewhat analogous to guaiacol, has become of some importance on account of its being suggested for ad- ministration in tubercular diseases by Dr. Koch. He recommends its administration during the tuberculine treatment. The dose is forty-five minims during the day, dissolved in spirit and diluted with water. Ap- plied locally, eugenol has a mild local anaesthetic action. It is useful for toothache and for painful affections of the skin ; in the latter class of cases it is applied as an ointment with lanoline. Two derivatives of eugenol-benzoyl-eugenol and cin- namyl-eugenol-have lately been introduced, and are be- 281 Eugenol. Exalgine REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. ing used in the treatment of tubercular affections. Their dose and action are as yet uncertain. Benzoyl-Eugenol, the benzoate of eugenol, occurs in neutral acicular crystals, free from color and odor, but having a faint bitter taste, very slightly soluble in water, but freely in alcohol, chloroform, and ether, With con- centrated sulphuric acid it gives a purple-red color, which is characteristic of eugenol ; this reaction distinguishes it from benzosol, a compound of benzoyl and guaiacol (the latter gives a pale yellow color). Its melting-point is 158° F. Cinnamyl-Eugenol also is formed in colorless, neutral crystals, free from odor and taste. Its solubility is the same as the benzoyl salt. With sulphuric acid it gives the same reaction as its fellow salt, but may be distin- guished by its melting-point, 194° to 198° F. Beaumont Small. EUPHORBIA PILULIFERA. A plant of the order Euphorbiacese, which has been recommended as a remedy for spasmodic affections and neuroses of the respiratory tract. It is indigenous to Australia, Brazil, and other southern tropical countries. It derives its specific name from the seeds, which are held in capsules in the axils of the leaf, and when ripe are brown and hard. It is com- monly known as the pill-bearing spurge. It is a very common annual herbaceous plant, and has a local reputa- tion as a curative agent in all pulmonary troubles. Dr. Mattheson, of Queensland, was the first to call attention to its value in asthma, paroxysmal dyspnoea, whooping- cough, and other spasmodic affections. Later it was studied by Dr. Marsset, under the direction of Dujardin- Beaumetz, and the result of his researches was published in the Therapeutic Gazette, February, 1885. Its action is directed to the respiratory and cardiac centres, and causes a retardation of the respiration and pulse, and when death has been produced it arises from a paralysis of these organs. It does not influence any of the other organs of the body, but when administered it produces an irritant action on the gastric mucous membrane. Its active principle is an acrid resin, which is soluble in water and dilute alcohol. Experiments on animals show that one part of the resin to one hundred of the animal, by weight, will produce a fatal result. It has proved of service in all spasmodic affections of the bronchial tubes and lungs, in the dyspnoea of em- physema of the lungs, and in that due to cardiac affec- tions. Dujardin-Beaumetz recommends it to be used in all cases in which iodide of potassium is used to relieve dyspnoea. It has also been used to relieve the spasms and distress of angina pectoris, and in hay asthma and coryza. In the latter diseases it rapidly checked the sneezing and other troublesome symptoms. The dried plant is used and its virtues are said to be best extracted by water. A decoction may be made by steeping half an ounce of the plant in two quarts of water, the dose to be three or four wineglassfuls during the day. A tincture may be made of one part to five of proof spirit: dose, ten to fifteen minims, three times a day. It is advisable always to begin with small doses and gradually increase the amount, watching its effect, as its action is sometimes violent. The administration cannot be continued for a great length of time owing to its irritant action on the stomach. Beaumont Small. EUPHORIN (Phenyl-urethan. Carbonate of ethyl and phenyl). Its formula is C8 H5 NHCOOCa Hs. This is a compound derived from aniline and is somewhat allied to acetanilide. It occurs as a white crystalline powder, with a faint aromatic odor and slight taste, almost insol- uble in water, but freely soluble in weak alcohol and wines. It was introduced in 1890 by Dr. Sansoni to re- place antipyrine, antifebrine, and other drugs of the same class. It was said to possess all their medicinal properties and to be devoid of their many objectionable effects. In a large number of cases of fever due to various causes in which it had been used as an antipyretic the (SUPPLEMENT) temperature fell quickly within one hour. The fall reached its maximum in about three hours, and lasted for five or seven hours. The subsequent rise of temperature was usually rapid. Its action was found to vary in dif- ferent individuals. It is advised to commence with a dose of three grains, which may be increased until fifteen or thirty grains are given daily. In acute rheu- matism fifteen grains daily caused disappearance of the swelling and pain in the joints and lowered the tempera- ture. In chronic cases the results were not so satisfac- tory. Subsequent observers have also found it of bene- fit in sciatica, migraine, neuralgia, and in some cases of muscular rheumatism. As an external application its antiseptic properties have been made use of as an appli- cation to wounds, ulcers, burns, etc. Dusted on the sur- face it has acted very beneficially ; the parts are rapidly rendered clean and healthy, the secretion is diminished, and cicatrization promoted. It does not cause pain or in any way prove irritating. It may also be used as an ointment. For internal administration it should be given in wafers, or in solution in weak alcohol or with wines. It must never be combined with antipyrine, as chemical decomposition takes place and a fluid results. Beaumont Small. EUROPHEN. This is one of the many compounds containing iodine and devoid of any disagreeable odor, that have been introduced as substitutes for iodoform. Chemically it is di-isobutylortho-cresol iodide, its formula being ^jj^'^CeHsO^HI. Its relation to cresol and iodine is much the same as that of aristol to thymol and iodine. It is prepared by adding isobutyl alcohol to ortho-cresol with zinc chloride, at a high temperature, which forms isobutyl ortho-cresol. This is dissolved in a dilute alkaline solution and then mixed with a solution of iodine in iodide of potassium, which yields a copious precipitate of the above compound. This is collected, washed, and dried in the dark. It is an extremely light amorphous yellow powder, with an aromatic odor resembling saffron. It contains 27.6 per cent, of iodine. It is insoluble in water and glycerine, soluble in alcohol up to thirty per cent., and in ether, chloroform, collodion, and fatty oils up to twenty-five per cent. It must be excluded from light and heat, as it is readily decomposed. In contact with water it is slowly decomposed, yielding free iodine. Alcoholic and ethereal solutions also evolve iodine if kept for a long time. Starch or starchy preparations should never be pre- scribed with europhen, as the reaction between the two is rapid, particularly when water is added to the mixt- ure, or when the fluid secretions cause the powder to evolve the iodine freely. The metallic salts, especially zinc and mercury, so freely used in dermatology, should never be combined, on account of the well-known in- compatibility of these metals. The most durable mixt- ures are those prepared with oil or lard, vaseline or lanoline. The latter is to be preferred, as it allows of a greater amount of absorption of the fluids, and con- sequently a more thorough action of the application. Europhen is, however, a dry antiseptic, and is most effective when applied as a powder directly to the part. Its action is due to the continuous liberation of free iodine, which commences as soon as the drug comes in contact with moisture. This gradual escape of iodine, together with the well-known antiseptic properties of the cresol also present, has a very decided effect in checking the growth of bacteria, and also prevents the reducing power of bacteria having an anaerobic growth. • It, however, is devoid of bactericidal action, and in no way destroys bacteria or spores. Over iodo- form it possesses certain advantages. It is free from the powerful penetrating odor that is so objectionable ; its toxic properties are only evident after very large doses, and for internal use it may be administered without fear- ing any dangerous symptoms. As much as twenty-two grainshave been taken daily, for three weeks, without the slightest discomfort. It is extremely light, being about 282 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Eugenol. Exalgine. five times as bulky as iodoform, and readily adheres to the skin or mucous membrane. The use of europhen is indicated in all cases where iodoform is employed in wounds and ulcers and ulcer- ated surfaces, and in diseased conditions of the nasal and pharyngeal cavities, of the vagina and uterus, and all mucous surfaces. In various forms of skin disease it has proved beneficial, especially the acute and chronic ecze- mas. It lias also been found useful as an application in erysipelas. An alcoholic or ethereal solution, of the strength of ten per cent, of the powder, has been said to act remarkably well when applied to syphilitic ulcers and to the initial sores. It is also administered internally in all stages of syphilitic disease, but is most recommended as being very active in the third stage, and is thought to replace the iodide of potassium as a specific. The dose to commence with should be one-quarter of a grain, gradually increased to one or two grains. If it is admin- istered too rapidly there is a danger of iodism manifest- ing itself. The same amount may be used hypodermi- cally, a ten per cent, solution in oil being prepared for this purpose. For external use as an ointment the fol- lowing has been selected as an excellent combination : Europhen, 3 parts ; olive-oil, 7 parts ; vaseline, 60 parts ; lanoline, 30 parts. Beaumont Small. EVIAN-LES-BAINS. A watering-place and climatic resort on the Lake of Geneva, France. Location.-Evian is a little town, having a population of 2,600, situated on the southern or Savoy side of the Lake of Geneva. It is built close to the edge of the wa- ter, and lies directly opposite the city of Lausanne. It is pleasantly located, with charming views in all direc- tions, and, apart from the popularity of its mineral springs, is known for the genial mildness and equability of its climate. Access.-By rail or steamer from Geneva, also by rail from Aix-les-Bains. Analysis.-There are six principal springs, all having about the same composition, and all very faintly mineral- ized. The temperature of the water is about 54° F. It is colorless, faintly alkaline, and so pure and agreeable to the taste that it is largely used as a mere table-water. The Source Bonnevie, according to an analysis of the Ecole des Mines, contains in 1,000 grammes : Grammes. Bicarbonate of lime 0.2210 Bicarbonate of magnesia 0.0150 Bicarbonate of soda 0.0200 Bicarbonate of potash 0.0070 Phosphate of soda 0.0017 Carbonic acid, free 0.0970 0.3017 Traces of alkaline chlorides. Indications.-A course of Evian waters is frequently prescribed to supplement the rigorous cure at Aix-les- Bains. According to Dr. Vintras ("Medical Guide to the Mineral Waters of France"), " the Evian waters are drunk, and used for baths and douches. As shown by the analysis, nothing in their chemical composition indi- cates their well-known therapeutical value. They agree perfectly with the stomach, and act as an excellent diu- retic in cases of gravel, enlargements of the prostate, and catarrhal affections of the bladder and kidneys, by the species of irrigation which they produce in the interior of these organs. If there is irritability of the urinary passages, caused by the presence of a calculus, or after lithotritic operations, they are to be preferred to those of Vichy, Vittel, or Contrexeville, which in such cases would be much too exciting. " Chronic affections of the digestive organs, such as dyspepsia, gastralgia accompanied by acid eructations, pyrosis, chronic irritation of the intestines, chronic diar- rhoea, obstinate constipation, hemorrhoids, etc., are all treated with benefit at Evian. Patients suffering from the irritability which accompanies most forms of chronic neuralgia have been relieved from it, after using the wa- (SUPPLEMENT.) ters for some days. It is supposed to have a calmative influence in all kinds of hypersensitive conditions." The amount of water taken varies from two glasses to twenty-five per day. The baths are soothing and seda- tive, and patients generally sip several glasses of mineral water while in the tub. Accommodation.-There are good hotels like the Grand Hotel des Bains, a Casino, and two thermal estab- lishments with modern comforts and hydrotherapeutic appliances. Life is gay during the season, there being plenty of amusements. Edmund C. Wendt. EXALGINE. This is the trade name of methylacetan- ilide. Its chemical formula is CeHsNCHgCsHsO ; it is formed by the addition of the methyl group, CH3, to acetanilide, C8HsNHCaH3O, replacing one atom of hy- drogen. It occurs as beautiful needle-shaped crystals, colorless, with a faintly aromatic odor and slightly pun- gent taste. It is almost insoluble in cold water, slightly soluble in hot, and very soluble in dilute alcohol. From sixteen to twenty grains may be dissolved in half a drachm of rectified spirit and this solution diluted with two or three ounces of water without producing any precipitation. Its melting-point is 212° F., and it may be heated to its boiling-point, 240° or 250° F., without causing decomposition. By the addition of soda it is decomposed and partially converted into methylaniline. Hydrochloric acid causes the same decomposition. The presence of methylaniline and other compounds of the same base may be detected by the irritating fumes pro- duced when the impure salt is heated with alcoholic solution of potash and chloroform. Its purity may be further tested by dissolving in nitric acid, which forms a colorless solution ; when heated this becomes of a bright yellow color, and evolves irritating fumes. Exalgine may be distinguished from acetanilide, phen- acetine, and methacetine by treating two grains of the suspected salt with twenty minims of hydrochloric acid. Phenacetine remains undissolved ; acetanilide dissolves but separates again in crystals; methacetine also dis- solves and gradually colors the solution reddish-brown on the addition of one drop of nitric acid. Another test for the presence of phenacctine or acetanilide is to treat a chloroform solution with ten volumes of petroleum ether; if either of these substances is present a turbid mixture is formed. Methylacetanilide was discovered in 1874 by A. W. von Hofman. Its therapeutic properties were studied to a certain extent by Kahn and Hepp during their re- searches upon acetanilide and other antipyretics, but it was not until March, 1889, that Dujardin-Beaumetz and Bardet made known its value as an analgesic, in a com- munication to the French Academy. A very careful series of experiments, both physiological and clinical, enabled them to indicate its therapeutic qualities with a marked degree of accuracy. With the other members of the aromatic series it was found to possess antisep- tic, antipyretic, and analgesic properties, and they also pointed out that its action on the nervous system should make it of value in the treatment of many functional diseases. It was as an analgesic that they particularly advocated its use ; the addition of the methyl atom to acetanilide had intensified this action without affecting its antipyretic properties, but it was found that a dose large enough to produce antipyresis, was accompanied by such alarming toxic symptoms that this use could not be con- sidered. They advocated its employment in headache, migraine, neuralgia, neuroses of the viscera, the pains of locomotor ataxia, and in all non-febrile affections accom- panied by pain. It was thought to be the most serviceable organic compound yet obtai ned for this purpose. It proved quite as active and certain as antipyrine, and yet never produced any disturbance of the digestive organs, never gave rise to any rash, nor had they found it accompanied by any distressing symptoms in the cases in which they had used it to relieve pain. It was found to relieve pain by producing insensibility without in any way affecting tactile sensibility or causing any other noticeable change in the condition of the patient The dose they advised 283 Exalgine. Examiner, Medical. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) was from four to six grains (0.25 to 0.40 gramme) in a single dose, or from six to eleven and a half grains (0.40 to 0.75 gramme) in the twenty-four hours. Following this highly laudatory introduction, the use of the drug became very general, and the reports that followed were chiefly in accord with the statements of Dujardin-Beaumetz and Bardet; but it was also found that toxic symptoms frequently followed its use and that its employment was not without danger. In Great Britain the notice of the profession was par- ticularly directed to the value of this remedy by Pro- fessor Fraser, of Edinburgh,1 who gave the results of his experience with it in the Royal Infirmary. The remark- able point in Professor Fraser's paper was the smallness of the dose and the success that followed its use in such quantities. The usual dose was half a grain in spiritu- ous solution, repeated three or four times a day, accord- ing to the return of the pain. In some cases it was in- creased to one and two grains, and in a few instances four grains were given ; the largest quantity given was fourteen grains during the twenty-four hours. In the cases of neuralgia and angina half-grain doses would relieve the pain in ten or fifteen minutes, and in one hour there would be perfect ease, which lasted from three to nine or ten hours, and in many instances a complete cure was obtained. In sciatica and locomotor ataxia one and two grains secured the same freedom from suffering. In cancerous disease and in the pain accompanying an an- eurism the success was less marked, and it was in these cases that the larger doses were given. Dr. Fraser con- siders that the smaller dose is the proper method of ad- ministering the drug, and that all its virtues may be as readily secured as with the larger doses. When given in this way, there is not the slightest danger of any un- favorable symptoms, as in none of his cases did any such occur. He considers methylacetanilide to be an anal- gesic of much value, not so powerful as opium, but devoid of any of the latter's disturbing influence on the system and free from any danger. The following table, arranged by Dr. Fraser, shows at a glance the diseases in which he used this remedy and the successes and failures in each class of cases : neuralgia of the epidemic of influenza, but in such cases it was inferior to the other new antipyretics, antipyrine and acetanilide. The small doses recommended by Dr. Fraser, how- ever, were not accepted generally. On the continent the doses of four to six grains were more frequently given ; in England it was often found necessary to in- crease the dose to this amount, and many from its first use had adopted the larger doses of Dujardin-Beaumetz. Many reports of its complete failure were also made, but it has been very generally accepted as having useful analgesic properties, and promises to remain as a per- manent addition to our armamentarium. Exalgine has been used with equally favorable results in infantile troubles. Dr. Moncorvo 5 publishes his ex- perience of its use in twenty-one cases of children rang- ing from one to twelve years of age, in which it was given for the relief of pain. He considers it a very use- ful agent. It was well borne in every case, no unfavor- able symptoms being ever noticed. The dose com- menced with was three-fourths of a grain, increased in some cases to five grains. In one case choreic symp- toms were present and were improved. Its use in chorea has been reported upon by Dr. Hugo Lowenthal.6 Thirty-five cases were treated with doses of three grains, usually three times a day, never exceed- ing fifteen grains in the twenty-four hours. The effects were very satisfactory. The mild cases were cured quickly, but the more severe ones were less influenced and required more time. The beneficial effects of the treatment were most marked in the cases in which it was given early in the course of the disease, in two cases a cure being effected in eight days. A favorable influence over the mental state was also noticed ; the fear and ner- vousness were lessened and the intelligence brightened. In some of the cases in which it was administered for a prolonged period, nausea, vertigo, headache, and other distressing symptoms were noticed. Unfortunately the occurrence of toxic symptoms are not infrequent. No fatal termination has yet been re- ported, but the condition of the patient becomes very alarming both to the friends and to the physician. The toxic disturbances, however, are far in advance of its fatal dose. Experiments on animals have shown that the lethal quantity is seven and a half grains for each two pounds of the weight of the animal, and three grains, it lias been found, will give rise to severe symptoms. The poisoning arises from the action of the drug on the ner- vous centres as well as from the alteration that occurs in the condition of the blood. The changes in the blood are the same as are produced by all aniline compounds, by which the haemoglobin is altered into methaemoglobin and the function of oxidation interfered with. The approach of the toxic action is noticed by a sense of ful- ness in the head, a constriction and oppression of the chest, dyspnoea, vertigo, dizziness, numbness, disturb- ances of vision. This is followed by a rapid pulse, shal- low respiration, and all the sensations of death with symp- toms of asphyxia and collapse. Unconsciousness is common in the severe cases of poisoning ; convulsions do not so frequently occur. Generally, very large quanti- ties are given before any ill effects are noticed. In one instance 1 the drug was continued for seventeen clays, in gradually increasing doses, and during the last seven days eighteen grains were administered daily. In another case 8 thirty-six grains were given within nine hours, and in another,9 twenty-four grains within two hours. The ill effects of the drug generally follow the prolonged use of the drug, or the administration of large doses, but in some instances very small doses have produced very alarming effects. An instance 10 is reported in which two doses of three grains caused ali the serious symp- toms of poisoning, and another instance in which two doses of five grains were given with the same effect. A remarkable 11 case is reported in which, in an adult, two doses of one and two grains, respectively, produced most profound prostration. The symptoms came on about an hour after the last dose, while the patient was sitting at a table engaged in a game of cards. He first complained Disease. Number of obser- vations. Success- ful. Unsuc- cessful or doubt- ful. Facial neuralgia 8 8 Sciatica 10 9 i Herpetic neuralgia 10 9 1 Neuralgia of arm, in hemiplegia 11 11 Locomotor ataxia, first case 2 2 Locomotor ataxia, second case 1 1 Toothache, first case 2 2 Toothache, second case 2 2 Toothache, third case 2 2 Too'hache, fourth case 2 2 Cardiac angina 2 2 Pleuritic pain, first case 1 i Pleuritic pain, second case 4 4 Rheumatic synovitis 4 4 Blennorrhagic rheumatism 2 1 i Gastric pain, cancer Gastric pain, catarrh and cicatrized * 2 ulcer 4 2 2 Cancer in abdomen 10 ti 4 Oarcinoma of liver 2 2 Aneurism of aorta 4 4 Lumbar abscess 3 3 Following Dr. Fraser's paper came a number of re- ports of successful results with half- and one-grain doses, by Drs. Herschell,2 Farrar,2 Holden,3 Maloney,* and many others. In these cases there was the usual success in pains of a purely neurotic character, and less favor- able effects where it was due to organic disease or me- chanical causes. It was found to be of greatest service in spare persons of a nervous temperament, and those subject to neurotic derangements. Contrary to the views of Dujardin-Beaumetz, it proved to be of much service in certain febrile troubles, particularly the headache and 284 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Exaijiine. Examiner, Medical. of a fulness in the head and suddenly fell prostrate, un- able to speak or move, and gasping for breath. A second attack took place in about an hour, and the oppression and dyspnoea continued for several hours. Very differ- ent to these cases are those in which very large quantities have been given without evil consequences. Dr. Chur- ton 12 reports two such cases. In the refilling of a bottle of medicine a mistake was made by which a solution was prepared of one grain to a drachm, instead of one grain to the ounce. The medicine was given as usual, four grains instead of half a grain being contained in each dose. This was continued for several days, and during the last twenty-four hours before the mistake was detected the patient was given forty grains. The pulse and respiration were rapid, and the patient complained of a burning sensation in the stomach, but no other effects were noticed. The second patient was given twenty-four grains from the same preparation without producing any other effect than slight vertigo and a sense of being "dazed," which caused her to walk unsteadily. The quality of the drug is vouched for, as it was given to a number of patients with satisfactory results, and small doses were again given to the first patient, and its anal- gesic action secured. The quality of the drug undoubtedly affects its action, and in many instances explains the varying results that follow its use, but certain conditions of the system must exercise a decided influence, probably by promoting the decomposition of the drug and the formation of more toxic compounds. Mr. Bokenham7 dwells upon this point in his remarks upon two cases of poisoning and suggests that some condition of the blood preceding menstruation may assist this reaction. The activity of the action is also influenced by the time of its ingestion. Professor Fraser and others, who find benefit in the small doses, al- ways recommend that it should be given on an empty stomach, while those who use the larger doses advise it to be given after meals, and others still have remarked that the toxic symptoms arise when it has been given be- fore meals. In the majority of cases the toxic symptoms pass away without requiring any assistance, but when the depression and dyspnoea are severe, stimulating remedies must be used. Alcohol has been resorted to in most of the cases of poisoning with apparent benefit, and hypodermic injections of ether have also been employed. In the cases reported by Dr. Jones7 marked relief was secured by the use of strychnine in addition to the stimulants. Two minims of the liquor strychnias were given hypoder- mically and ten minims of tincture of digitalis by the mouth. In these cases the inhalation of nitrite of amyl and Ti<y-grain doses of nitro-glycerine increased the cya- nosis, showing that the arterial as well as the venous blood was altered. The following conclusions have been arrived at by Marandon de Montyel13 from clinical observations on patients in whom its use had been pushed to its physio- logical limits :-It has no influence on digestion. If the stomach is empty it causes an increased flow of saliva, a bitter taste, and a sense of tightness about the epigas- trium. The pulse, respiration, and temperature are les- sened in patients without convulsive tendencies. Ver- tigo, flashes of light and ringing in the ears are frequent. A local or general cyanotic surface, sensations of cold, numbness, and formication, are prominent symptoms. Its action is prompt and recovered from promptly, the brain being the first organ affected and the first to re- cover. When administered after meals its physiological action is less marked. Beaumont Small. EXAMINER, MEDICAL. The medical examiner sys- tem of Massachusetts, enacted in place of the coroner's inquest system which was abolished in 1877, has now (1893) been in successful operation for nearly sixteen years, and it is safe to say that no return to the coroner system will ever be made in Massachusetts. The law is quoted in full, and its advantages are fully stated in the second volume of this work. The following statistics relative to the operation of this law are quoted from the registration reports of Mas- sachusetts, for the years 1885 to 1891 inclusive : Total Deaths, and Deaths by Sexes, Investigated Under the Medical Examiner Laws in Massachusetts, 1885-1891. Totals 1885 1886 1887 1888 1889 1890 1891 M 5 8,370 973 1,027 1,191 1.261 1,253 1,303 1,362 Males. pt to 76.1 74.5 76.5 76.4 75.8 73.5 74.0 Per cent. to c? to 286 319 350 373 388 449 457 Females. M 23.6 22.4 23.2 22.5 22.6 23.4 25.3 24.8 Per cent. 881 19 32 15 17 13 21 21 ■Unspeci- fied. io 1.5 2.3 0.8 1.2 1.2 Per cent. o 1,278 1,378 1.556 1,651 1.654 1.773 1,840 Totals. In the following table the same deaths are classified by the modes of death : Recapitulation. Totals h- a go -I cs tn Yeabs. ri O CO or or or Number. Homicide. 3.07 3.52 3.41 8.34 3.15 3.08 1.97 3.26 Per cent. 63 s 181 157 173 190 199 196 187 Number. Suicide. 11.53 14.17 11.38 11.12 11.51 12.03 11.05 10.16 Per cent. , 5,298 567 678 748 785 792 S62 866 Number. Accident ok 09'Lt 44.87 49.17 48.07 47.55 47.89 48.62 47.07 Per cent. NEGLIGENCE. 4,207 485 496 583 <524 612 680 727 Number. Natural and UNKNOWN CAUSES, IN- CLUDING AL- COHOLISM. 37. SO 37.94 36.00 37.47 37.79 37.00 38.36 39.51 Per cent. oefn 1,278 1.378 1,556 1.651 1,654 1,773 1,840 Totals. Iii the following table are presented the number of autopsies, the total expenses incurred in each year, and the average cost of investigation of each case, so far as the medical examinations were concerned. The ex- penses of 1891 had not been made up at the time of writ- co co co co co co z r r f j C ?D co *5 c: Oi Year. 1,278 1,378 1.550 1,651 1,654 1,773 Total number of cases ex- amined. 165 202 188 219 216 206 Autopsies. $16,322.54 18,024.22 18,626.26 19,611.53 19,489.69 20,710.63 Total expen- ses. $12.77 13.08 11.97 11.88 11.78 11.68 Average ex- pense of each caw. 1 British Medical Journal, February 17, 1890. 3 Ibid., July 19, 1890. 3 Ibid., September 27, 1890. 4 Ibid., October 18, 1890. 6 Bull. Gen. de Therap , May 30, 1891. 6 Berlin klin. Wochen., March, 1892. 7 British Medical Journal, February 8, 1892. 8 Medical Press and Circular, March 16, 1892. 9 The Therapeutic Gazette, February. 1892. 10 British Medical Journal, July 12, 1890. 11 Ibid.. May 3. 1890. 13 The London Lancet, May 28. 189'. 13 La Tribune Medicale, June, 1892. ing, but it is safe to say that the average expense of each case was still further reduced as compared with that of previous years. After the system was inaugurated, and had been in successful operation for three years, a careful inquiry of 285 Examiner, Medical. Eye Diseases. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. the expenses under the old coroner laws, and also under the present system showed a decided lessening in the ex- penses, the two chief causes of the reduction being the abolition of the useless coroner's jury, and the diminu- tion in the number of inquests. It is a sufficient comment upon this law that more than eighteen thousand cases of sudden, suspicious, and vio- lent deaths have been investigated under its authority, and in a far more satisfactory, intelligent, and economi- cal manner than could have been possible under the old regime. Samuel IF. Abbott. EXMOUTH. A popular sea-bathing resort in Devon- shire, England. Exmouth is ten miles from Exeter and occupies a fine situation on the Devon coast. The beach is remarkably good. The climate is moderately warm and equable, although the place is not so well sheltered from winds as Budleigh Salton, some five miles distant. There are fine coast and inland views, and the usual facilities for seaside enjoyments. Season, June to Sep- tember. The place, though foggy, is healthy. Edmund C. Wendt. EXPECTORANTS. The well-known action of oil of turpentine upon the bronchial mucous membrane seems to be possessed by its derivatives, terpin hydrate, tere- bene, and terpinol. Terpin hydrate was recommended in 1885 as a very efficient agent in chronic bronchial catarrh, and preferable to oil of turpentine on account of the absence of unpleasant physical properties. Since then it has been employed by a large number of clini- cians, and has been found to be a reliable remedy in bronchitis and whooping-cough. Terpin Hydrate, Ci0H163H2O, is a hydrate of oil of turpentine that often forms when the oil is in contact with a small quantity of water for some time. On a large scale it is obtained by mixing oil of turpentine with alcohol and nitric acid. It is in the form of large color- less crystals, having no odor and only a very slight aromatic taste. It dissolves in 250 parts of water at 15° C., in 32 parts of boiling water, and in 10 parts of alcohol. Terpin hydrate was introduced by R. Lepine, of Lyon, as an effective remedy for chronic bronchitis. He had used it in several hundred cases, and had observed that doses of 0.2 to 0.6 (three to nine grains) daily rendered the sputa less tenacious and more copious, and facilitated expectoration. In cases of bronchorrhoea larger doses, 1.5 daily (twenty-two grains), lessened the quantity of sputum. Such doses also increased the action of the kidneys, but, when these organs were normal, never caused albuminuria or haematuria. The observations of Lepine have been corroborated by a number of clinicians in large hospitals. Thus Germain See found terpin hydrate very effective in catarrhal affec- tions of the respiratory mucous membrane, the morbid secretion gradually diminishing under its prolonged use. In catarrhal forms of phthisis, he observed that the muco- purulent secretion lessened and often entirely ceased. He employed it also to arrest the haemoptysis of, the early stage of phthisis, and held it to act more rapidly than ergotin. Dr. Lazarus, of Berlin, employed terpin hydrate in a large number of cases of bronchitis with good results. Marked effects, however, occurred only when he used large doses, from twenty to thirty grains daily. To avoid unpleasant effects on the digestive organs, the medicine was given in pills and taken during meals. He regards as the special indication for terpin hydrate great irritability of the bronchial mucous membrane with very scanty or very tenacious secretion. The effect observed was an increase of the sputum, which became more fluid and was easily expectorated. Usually the catarrhal symptoms vanished in from eight to fourteen days. Dr. Manasse, of Berlin, used terpin hydrate for several years in a large number of cases of bronchitis. When small doses were given no very striking effects resulted ; but large doses, from thirty to forty-five grains daily, proved decidedly efficient in chronic bronchial catarrh. (SUPPLEMENT.) In no case, although hundreds were treated, did any un- pleasant incidental effects occur. He found terpin hy- drate very useful also in whooping cough, of which he treated forty-one cases, varying in age from nine months to twelve years. Every case was carefully observed, the frequency and severity of the paroxysms being noted daily. To children under one year of age he sometimes gave as much as 1.5 (twenty-two grains) daily, and never observed any injurious action on the digestive or urinary apparatus. And in no case, when 2.5 to 3.0 daily were given to older children, did the urine become albuminous or bloody. As a rule, in four or five days the paroxysms were less numerous and always less severe. The bron- chial catarrh, which was present in most cases, dimin- ished more rapidly than usual, and finally disappeared entirely. All the cases treated with terpin hydrate recov- ered. The medicine was given in the form of powder: Terpini hydrati 5.0-10.0 Div. in part, sequal. No. x. S.: One powder three times daily. The following formulae have been recommended : R. Terpini hydrat 3.0 Sacch. alb., Mucil. acaciae „ S3 q. s. M. ft. pil. No. 30. S.: One to four pills three times daily. 5. Terpin hydrat 2.0 Spiritus, Aq. dest., Syr. menthae pip aS 50.0 M.S.: One tablespoonful from three to six times daily. Codeine.-Codeine has recently come into use as a means of allaying cough. According to numerous re- ports, it is generally as effectual as morphine or the prep- arations of opium. Often it has been observed that the cough of mild forms of bronchitis ceased in a few days. But its principal advantage is that it does not depress the functions of the alimentary canal. The use of mor- phine is usually followed by a diminution of appetite, and often by constipation. Codeine, while it allays the cough, does not interfere with the appetite, or with the normal action of the bowels. This has been especially observed in phthisis, in which codeine was found to mitigate the cough without lessening the desire for food. When, to test the difference in action, Dover's powder was given to patients that had been taking codeine, the appetite, which had improved under the use of codeine, diminished again, showing the decided superiority of codeine. It has been found to be very useful in the bronchitis of children, and, in appropriate doses, has been given to infants, without any unpleasant effects. Codeine should, therefore, be preferred to morphine in all cases of severe cough in which it is necessary to maintain a good appetite, as in bronchial catarrhs com- plicating chronic wasting diseases, in children, and in persons subject to constipation. Especially, should codeine be preferred to morphine to relieve the cough of phthisis ; for if the means used to mitigate this tor- menting symptom interfere with digestion and nutrition, little hope of saving life can be entertained. The salts of codeine commonly used are the sulphate, phosphate, and hydrochloride. They all readily dissolve in water, and are usually prescribed in aqueous solution with a small quantity of syrup, or together with sugar, in the form of powder. The dose for adults is one- fourth to three fourths of a grain ; for infants, one-six- tieth of a grain ; and for children three or four years of age, one-fifteenth to one-tenth of a grain, from three to five times daily. Samuel Nickles. EYE DISEASES. NOMENCLATURE AND STATIS- TICS OF. No successful effort has been recently made to decide upon a complete and scientific nomenclature of eye diseases, and in the present state of ophthalmology it would be difficult, if not impossible, to do so. When 286 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Examiner, Medical. Eye Diseases. 'SUPPLEMENT. Total num- ber of cases. Number of cases of such disease in 1.000 cases of eye dis- ease in gen- eral. Brought forward I. Affections of the Lids (Con- tinued) :- Tumors (Continued):- 26,209 - Enchondroma 1 Epithelioma 236 1 Fibroma 152 Hordeolum 1,999 7 Horny growth 23 Lipoma 13 Lupus 5 Millium 22 Molluscum contagiosum 100 Papilloma 19 Syphiloma 11 Verruca 238 1 Ulcer 79 " syphilitic 7 Wound 590 2 Xanthelasma 78 Total 29,782 Equal to nearly 10 per cent, of all eye cases. such action is taken, it must be by some representative scientific body, as the American Ophthalmological So- ciety, not by an individual. The nomenclature pre- sented below is, strictly speaking, neither complete nor scientific, but practical ; for it covers and enables us to study the statistics-to us the most important side of the question-of upward of three hundred thousand eye patients, as reported in the leading eye hospitals in this country. It was prepared from the lists of diseases as they appeared in the twenty-four annual reports of the ten different eye hospitals enumerated at the close of this article. Each disease was recorded, and when the list was complete, it was placed under its proper heading for final use. The statistical portion is based upon a study of the 301,744 cases of eye disease embodied in the reports above referred to. The tables explain themselves. Each disease is credited in the first column with the number of cases of such affection found in the grand total of 301,744 recorded cases, while the second column shows the relative fre- quency of each such affection, this frequency being ex- pressed in numbers which indicate how often the dis- ease is encountered in 1,000 of the cases which form the basis of this inquiry. When the proportion is materially less than one in a thousand, no entry whatever is made in the second column ; and, furthermore, these entries are made only in round numbers. I. Affections of the Lids : Total num- b er of cases. Number of cases of such d i s e a se in 1,000 cases of eye dis- ease in gen- eral. Abscess 1,180 42 4 Anchyloblepharon Blepharitis 11,899 1,747 14 40 Blepharoconjunctivitis Blepharo-phimosis 6 Blepharospasm 390 1 Burn 306 1 Canities 2 Cellulitis 22 Coloboma Cretaceous deposits 10 10 Distichiasis 89 Ecchymosis 348 1 Ectropion 573 2 Eczema 1,289 3 4 Elephantiasis Emphysema 37 Entropion 545 2 Epicanthus 70 Erysipelas 32 Erythema 24 Favus 15 Foreign body 164 Herpes 67 " zoster ophthalmicus 47 Lagophthalmos 84 Madarosis 6 Malignant disease 45 Nictitation 114 (Edema 698 109 2 Phtheiriasis Poison 23 Ptosis 391 1 Trichiasis 1,091 378 4 Tumors 1 Angioma 112 Chalazion 1 4,183 50 14 Cystoma f Dermatoma Carried forward 26,209 II. Affections of the Conjunc- tiva : Abscess Total num- ber of cases. Number of cases of such di se a se in 1,000 cases of eye dis- ease in gen- eral. 25 Argyria 20 Atrophy 16 Burn 1,084 4 Caruncle, abscess of 4 " inflammation of 13 " hypertrophy of 9 " tumor of 5 Chancre 1 Ch emosis 81 Conjunctivitis " blennorrhmal 324 1 274 1 catarrhal 44,705 149 " .chronic 8,091 27 " croupous 194 1 diphtheritic 79 " follicular 91 " gonorrhoeal 196 1 " granular 7,685 26 " haemorrhagic.. 9 " lachrymal 810 3 " neonatorum 1,223 4 " phlyctenular 9,632 32 " purulent . 1,416 5 " rheumatic 20 " scrofulous 47 " traumatic 1.682 6 " vernal .... 52 Ecchymosis 688 2 " subconjunctival 1,064 4 Foreign body 1,679 6 Hyperaemia 774 3 Hypertrophy 71 Carried forward 82,064 - 287 Eye Diseases. Eye Diseases. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT. Total num- ber of cases. Number of cases of such disease i n 1.0G0 cases of eye dis- ease in gen- eral. Brought forward II. Affections of the Conjunc- tiva (Continued):- 82,064 - Irritation 13 Lithiasis 2 Lymphangiectasis 8 (Edema 99 Pemphigus 3 Pterygium 1,689 6 Symblepharon 293 1 Tumor 66 Angioma 3 Carcinoma 24 Cystoma 80 Dermatoma 17 Fibro-lipoma 3 Granuloma 8 Gumma 2 Melano-sarcoma 2 Pinguecula 268 1 Polypus 136 Ulcer 112 Wound 540 2 Xerosis 24 Total 85,456 Equal to about 28 per cent, of all eye cases. Total num- ber of cases. Number of cases of such disease i n 1,000 cases of eye dis- ease in gen- eral. Brought forward III. Affections of the Cornea {Continued):- 37,714 - Keratitis, traumatic 1,274 1,523 116 4 " ulcerative " vascular 5 Kerato-conjunctivitis " conus " cyclitis 489 115 10 2 " iritis Kerato-irido-cyclitis " scleritis 1,272 6 7 1,553 584 49 20 73 4 Leucoma 5 " adherent " total Metallic incrustation Necrosis 2 Opacity 5,540 18 Pannus 935 3 Staphyloma Tumor : Cyst Dermoid Epithelioma 610 4 2 3 12 2 Ulcer 8,518 28 " perforating " rodent " serpiginous . " syphilitic 224 3 IM 1 " traumatic 239 1 " with prolapse of iris 290 1 Wound 1,976 7 " abrasion '4 penetrating " rupture " with prolapse of iris 411 92 133 34 1 T otal 63,936 Equal to about 21 per cent, of all eye cases. III. Affections of the Cornea : Abscess Anaesthesia Burn Calcareous deposits Fistula Foreign body " " in cornea and ante- rior chamber Herpes Keratitis " bullosa (pemphigus).... " dendritic " diffuse " fascicular " hypopyon " interstitial " malarial " marginal " neuro-paralytic " phlyctenular " punctate (descemitis, see serous iritis) " pustular " serpens Total nuin- b e r of cases. Number of cases of such disease 1,000 of eye ease in eral. i n Hases dis- gen- 297 1 465 9 3 20,251 12 32 6,560 9 1 38 277 181 965 35 103 6 8,403 62 4 1 2 67 22 1 3 28 Carried forward 37,714 • Total num- ber of cases. Number of cases of such disease i n 1.C00 cases of eye dis- ease in gen- eral. IV. Affections of Sclera. Burn 4 Episcleritis 596 2 Foreign body 46 Gumma 8 Scleritis 259 1 Sclero-choroiditis, anterior 13 Sclero-keratitis 49 Staphyloma 99 Tumor 1 Wound 154 " contusion 1 " of sclera and cornea 31 Total 1,261 Equal to not quite one per cent, of all eye cases. 288 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Eye Disease*. Eye Diseases. Total num- ber of cases. Number of cases of such disease i n 1.000 cases of eye dis- ease in gen- eral. Brought forward VI. Affections of the Lens {Continued) :- 1,276 - Cataract diabetic 3 " hard 7,401 24 " incipient 2,188 7 inflammatory 116 " lamellar 112 ' * morgagnian 15 " nuclear 28 " polar " " anterior 27 130 " " posterior 79 " secondary 232 1 " soft 449 1 " traumatic 1,289 4 Dislocation of lens 473 1 " " congenital.... 4 " " traumatic 16 Foreign body in lens 14 Sclerosis of lens 5 Total 13,857 Equal to a lit- tle over four and one-half per cent, of all eye cases. V. Affections of Iris and Cil- iary Body. Aniridia Total num- ber o f cases. Number of cases of such disease i n 1,000 cases of eye dis- ease in gen- eral. 10 99 3 19 81 7 7 2 22 8 30 565 237 7 108 119 3,501 o 2 664 9 43 118 196 7 895 478 482 227 19 18 31 404 7 597 1,167 10 5 1 41 1 8 166 80 30 2 1 12 ' 2 1 3 2 1 1 2 4 Atrophy of iris Coloboma of iris " of iris and ciliary body " of iris and ciliary body and choroid Cyclitis Displacement of iris, traumatic.. " of pupil Exclusion of pupil Foreign body in iris Hetero-chromia iridis Hyperaemia of iris I rido-choroiditis " cyclitis " cyclo-choroiditis dialysis " donesis Iritis " exudative " hemorrhagic " plastic " purulent " recurrent " rheumatic " serous (uveitis serosa, desce- metitis, etc.) " spongy " syphilitic " traumatic Mydriasis medicinal paralytic traumatic Myosis Occlusion of pupil Persistent pupillary membrane... Synechiae, anterior ' ' posterior Tumor of iris cyst granuloma gumma melano-sarcoma in ciliary region Wound of iris " with prolapse of iris " with rupture of iris .... Total 10,530 Equal to about three and one-half per cent, of all eye cases. Number of cases of such Total num- disease i n b e r of 1.000 cases cases. of eye dis- VII. Affections of the Choroid ease in gen- and the Vitreous. Albinism 32 Atrophy of choroid 888 3 Cholesterin crystals in vitreous... 11 Choroiditis 918 3 " atrophic 6 " circumscripta 1 " disseminata 193 " exudative 114 " metastatic 5 " plastic 66 " sclero-posterior 450 1 " serous 5 " suppurative 2 Choroido-retinitis 352 1 " " central 43 " -scleritis 14 Coloboma of choroid 21 Colloid excrescences in choroid .. 1 Cysticercus in vitreous 1 Detachment of vitreous 2 Foreign body in vitreous 79 Growths and opacities in vitreous. 510 2 Hemorrhage into vitreous 202 1 " in choroid 25 Hernia of choroid 5 Hyalitis 82 " diffuse 5 Hyperaemia of choroid 4 Persistent hyaloid artery 11 Rupture of choroid 65 Synchesis scintillans 10 Tubercles in choroid 1 Tumor of choroid Total 28 4,172 Equal to a lit- tie over one per cent, of all eye cases. Number of cases of such Total num- disease i n ber o f 1,000 cases VI. Affections of the Lens. Aphakia cases. of eye dis- ease in gen- eral. 190 Capsulitis 2 Cataract 74 " calcitic 44 ' ' capsular 556 2 " congenital 366 1 " cortical 44 Carried forward 1,276 - 289 Eye Diseases. Eye Diseases. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.; X. Amblyopia and Amaerosis : Amaurosis ' ' cerebral " congenital " fugax Amblyopia * ' cerebral " congenital " hysterical " from insolation " toxic: alcohol alcohol and tobacco.. quinine tobacco uraemia Chromatopsia Hemeralopia Hemianopsia Nyctalopia Scotoma " scintillans Total num- ber of cases. Number of cases of such disease 1,000 of eye ease in eral. i n 'ases dis- gen- 7 2 5 2 608 7 50 21 1 366 5 30 1 188 2 96 29 3 36 1 2 1 Total 1,497 Equal to nearly one- half of one per cent, of all eye cases. VIII. Affections of the Retina : Atrophy Cysticercus Total num- ber of cases. Number of cases of such disease 1,000 of eye ease in eral. i n cases dis- gen- 21 o Detachment Embolism of central artery Epilepsy Glioma Hemorrhage " at macula lutea. Hy perse mia Hyperesthesia (Edema Opaque nerve-fibres Perivasculitis 800 54 3 79 167 15 108 43 8 45 1 2 Retinitis " alba .. .. " albuminuric " diabetic " exudative " hemorrhagic " leucocythemic " macular 289 2 177 7 19 192 13 1 " pigmentosa " proliferous " serous " syphilitic " traumatic Retino-choroiditis Rupture Thrombus of retinal vein Tumor 213 24 14 4 50 2 2 1 1 Total 2,365 Equal t 0 about three- quarters of one per cent, of all eye cases. XI. Glaucoma : Glaucoma Total num- ber of cases. Number of cases of such disease in 1,000 cases of eye dis- ease m gen- eral. 317 83 126 474 13 64 57 13 90 1 1 " absolute " acute " chronic " hemorrhagic " secondary " simple " subacute Glaucomatous degeneration Total 1,237 Equal to nearly one- half of one per cent, of all eye cases. Total num- b e r of cases. Number of cases of such disease i n 1.000 cases of eye' dis- ease in gen- eral. IX. Affections of Optic Nerve : Atrophy 2,352 10 8 " congenital " incipient 55 Concussion 1 Hemorrhage on disk 2 Hypersemia of disk 12 Neuritis 564 35 18 2 Papillitis Retro-ocular neuritis Neuro-retinitis 679 2 (Edema of disk 2 Persistent nerve-sheath 3 Total 3,733 E q u a 1 to a little over one per cent, of all eye cases. XII. Errors of Accommodation and Refraction : Anisometropia Total num- ber of cases. Number of cases of such disease i n 1,000 cases of ej'e dis- ease in gen- eral. 279 1 Asthenopia 715 2 " accommodative 779 2 " muscular 116 Astigmatism 5,139 154 17 " compound " " hyperopic. 4,228 14 Carried forward 11,410 290 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Eye Diseases. Eye Diseases. (SUPPLEMENT.) Total num- ber of cases. Number of cases of such disease i n 1.000 cases of eye dis- ease in gen- eral. Brought forward XIII. Affections of the Nerves and Muscles of the Globe {Continued) :- 2,382 - Strabismus: convergent " deorsum vergens 7,384 5 24 " divergent " periodic " sursum vergens 1,098 64 15 3 Totals 10,948 Equal to a little over one-third of one per cent, of all eye cases. Total num- ber of cases. Number of cases of such disease i n 1,000 cases of eye dis- ease in gen- eral. Brought forward XII. Errors of Accommodation and Refraction {Continued)-.- Astigmatism compound myopic .. ' ' irregular " hypermetropic " mixed " myopic ifypermetropia Myopia .... 11,410 760 41 3,477 642 1,538 23,467 8,334 189 3 4 9,638 153 2 11 2 5 78 27 Paralysis of accommodation.... " " " trau- matic Paralysis of accommodation, post diphtheritic Presbyopia Spasm of accommodation 32 Total 59,656 Equal to nearly 20 per cent, of all eye cases. XIV. Affections of the Globe : Anophthalmos Burn Total num- b e r of cases. N umber of cases of such disease i n 1,000 cases of eye dis- ease in gen- eral. 97 22 16 2 30 163 15 84 317 319 61 23 31 40 1 182 2,217 36 116 376 376 109 32 19 41 67 201 4,993 1 1 7 1 1 Equal to about one and one-half per cent, of all eye cases. Malformation (congenital) Dislocation Exophthalmic goitre Exophthalmos Foreign body in anterior cham- ber Foreign body in globe Hyphaemia Hypopyon Intra-ocular hemorrhage ' ' tumor Megalophthalmos Microphthalmos Neuroma optic nerve Panophthalmitis Phthisis Sympathetic irritation " inflammation Wound: Contused In ciliary region Corneo-scleral Gunpowder explosion Gun-shot Perforating Rupture Total Number of cases of such Total num- disease i n b e r of 1,0011 cases cases. of eye dis- XIII. Affections of the Nerves ease in gen- and Muscles of the Globe : Diplopia 189 Esophoria 88 Exophoria 476 1 Hyperphoria 34 Hyperesophoria 3 Hyperexophoria 4 Nystagmus. 475 1 " horizontal 15 " monocular 1 ' ' rotatory 12 " vertical 1 Ophthalmoplegia externa 10 Paralysis of external rectus 393 1 " of inferior rectus 19 " of inferior oblique .... 5 " of internal rectus 65 " of superior oblique.... 52 " of superior rectus 30 " of 3d nerve 354 1 " of 3d nerve, partial.... 67 " of 2d, 3d, 4th, 5th, and Gth nerves 1 Paralysis of 2d, 3d, 4th, and 6th nerves 1 Paralysis of 3d, 4th, 6th, and 7th nerves 3 Paralysis of 3d and 4th nerves... 4 " of 3d, 4th, and 6th nerves 7 " of 4th, 5th, 6th, and 7th nerves 43 Rupture of external rectus (trau- matic) 1 Rupture of inferior rectus (trau- matic) 2 Rupture of internal rectus (trau- matic) 1 Strabismus : alternating 26 Carried forward 2,382 - XV. Affections of the Lachry- mal Apparatus: Abscess of caruncle Total num- ber of cases. Number of cases of such disease i n 1.000 cases of eye dis- ease in gen- eral. 1 1 875 2 " of lachrymal gland " of " sac Carried forward 877 - 291 Eye Diseases. Eye Symptoms. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Total num- ber of cases. Number of cases of such disease i n 1.000 cases of eye dis- ease in gen- eral. Brought forward 877 - XV. Affections of the Lachry- mal Apparatus {Continued):- Cancer lachrymal gland " " sac 2 19 Closure of puncta. 4 Cyst over lachrymal sac 33 Dacryoadenitis 12 Dacryocystitis 1,879 6 " acute 89 " blennorrhoeal 182 " catarrhal 1,004 3 " chronic 99 " phlegmonous 55 Dacryolith 2 Epiphora 1,790 6 Fistula, lachrymal 154 Foreign body in canaliculus 3 Hypertrophy of lachrymal gland. 15 Malposition of puncta 51 Obstruction of canaliculi 54 " of lachrymal duct (stricture) 1,522 5 Stillicidium 15 Supernumerary lachrymal gland. 1 Tumor over lachrymal sac 11 Wound over lachrymal sac 9 Total 7,881 Equal to about one- quarter o f one per cent, of all eye cases. Wills Eye Hospital, Philadelphia, Pa., 1888, 1890. and 1893. Presbyterian Eye, Ear, and Throat Charity Hospital, Baltimore,Md.,'91. New York Ophthalmic and Aural Institute, New York City, 1885, 1886, and 1891. Massachusetts Charitable Eye and Ear Infirmary, Boston, Mass., 1889, 1890. and 1891. Newark Charitable Eye and Ear Infirmary, Newark, N. J., 1888, 1889, 1890, and 1891. Maine Eye and Ear Infirmary, Portland, Me., 1892. Buffalo Eye and Ear Infirmary, Buffalo, N. Y., 1887. James Lancelot Minor. EYE SYMPTOMS, DIAGNOSTIC SIGNIFICANCE OF; AND ETIOLOGY OF EYE DISEASES. The study of the causes of eye affections is not only important with reference to the treatment of these diseases, but often proves of service in the practice of clinical medicine in general. The eyes are so often involved in consequence of derangements of other organs that ocular symptoms are not rarely the earliest signs of internal diseases. Thus, kidney disease and diabetes are sometimes recognized by the oculist before the necessity for the family physician has been felt. Syphilis, acquired or congenital, may reveal itself for a time in the eye only, and various dis- eases of the central nervous system are first seen in their incipiency by the ophthalmic specialist or require his methods for their correct localization. In order, there- fore, that this article shall be of full value to the general reader, it must involve the diagnostic significance of mere symptoms as well as the etiology of ocular lesions. Affections of the eyes, like diseases in general, may be classified etiologically as either primary diseases, in which the derangement is directly due to some cause from the outer world, or secondary affections, which result from a pre-existing anomaly in some other part of the system. While this distinction must be kept in view for the pur- pose of research, our knowledge is not yet sufficiently complete in every instance to maintain it in practice. In the case of the eye, perhaps more than in the case of any other organ, there occur, moreover, affections which may be termed intermediate between primary and secondary diseases. For there are many eye troubles which are pri- mary in the sense that they are caused by infection, an occurrence originating in the outer world, but secondary inasmuch as such infection -will take place only if the germs have previously gained a foothold in some other part of the economy. The frequent occurrence of eye symptoms and lesions in consequence of other diseases depends on the excep- tionally intimate connection between the visual organ and other parts of the economy, as well as on the complicated and hence delicate histological structure of the eye. Through the general circulation germs and poisons can reach the eye, while the nutrition of the ocular tissues reacts readily to changes in the blood or the walls of the vessels. Infections gain access through the extensive lymphatic connections, through fissures in the walls of the orbit, or along the channel of the tear-duct. The nutritive integrity of the optic nerve is influenced by morbid processes in many parts of the brain or even spinal cord, and derangements in the co-ordination of the ex- trinsic and intrinsic muscles of the eye indicate in the most sensitive manner any disease in the large central area from which their nerves originate. The etiological dependence of any eye affection on a given anomaly in some other part of the body may be proven in various ways. It is suggested by the coin- cidence or sequence of the two disturbances, and the probability of a relationship increases with the frequency of the observations. As some forms of eye trouble may have different modes of origin in different cases, the oc- casional occurrence of an eye disease in the course of other disturbances, but which may also be seen at times without the coexistence of the latter, does not exclude a relationship. But if a characteristic ocular lesion is seen only in connection with certain internal diseases, as the "albuminuric" form of retinitis in kidney diseases, the relationship is clearly established. The etiological proof is also furnished whenever a morbid process can be watched clinically or traced patho- logically in its encroachment from some adjacent struct- XVI. Affections of the Orbit : Abscess Total nuni- ber of cases. Number of cases of such disease i n 1,000 cases of eye dis- ease in gen- eral. 39 19 98 5 1 3 9 56 1 51 97 1 8 38 20 4 1 11 87 Caries Cellulitis Contusion Emphysema Foreign body Fracture Necrosis " from phosphorus Periostitis Tumor Aneurism Carcinoma Cyst Exostosis Haematoma Osteoma Sarcoma ... Wound Total 549 Equal to about one- sixth of one per cent, of all eye cases. Hospital Reports Referred to. Brooklyn Eye and Ear Hospital, Brooklyn, N. Y., 1892. New York Eye and Ear Infirmary, New York City, 1882, 1885, 1890, and 1891. Manhattan Eye and Ear Hospital, New York City, 1888, 1890, and 1891. 292 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Eye Diseases. Eye Symptoms. (SUPPLEMENT.) ure into the orbit. In other instances the dependence of ocular disturbances upon pre-existing other anomalies may be shown by the influence exerted upon them by the treatment of the suspected condition. Unless such in- fluence, however, is very striking, and the prognosis of the eye-trouble is fully known, this mode of reasoning is liable to errors. The most satisfactory proof of the re- lation of any morbid occurrence to any eye anomaly is only furnished by the experimental production of the latter. But this method has been as yet but little pursued. For reasons of convenience the plan of this article will be to detail the etiological significance of the various eye affections from the standpoint of the oculist, while a survey of the eye symptoms and lesions to which any specified internal disease may give rise can be obtained from the classified index.* I. Lachrymal Apparatus. 1. The lachrymal gland-very rarely the seat of dis- ease-may undergo chronic inflammatory enlargement in acquired syphilis. A few observations are on record of swelling of the gland during an attack of mumps, and a similar subacute inflammation has also been interpreted as a vicarious form of mumps, the diagnosis being based on the existence of mumps in others in the same dwell- ing. In leucocythcemia the tumefaction characteristic of that disease may also, though rarely, occur in the lachry- mal gland. 2. Lachrymation, or the overflow of tears, indicates over-activity of the gland, but not necessarily impaired drainage of tears, as is shown by ordinary crying. It oc- curs during the course of all irritating forms of disease of the anterior parts of the eye. It may also result, though less frequently, from eye-strain. In some instances it depends on irritability of the mucous lining of the nose, due to sharp crests on the nasal septum or to enlarged turbinated bodies. Obstruction of the tear-passages is not necessarily ac- companied by steady lachrymation, but if in this condi- tion a flow of tears is started by eye-strain or irritation by wind and dust, the tears can only escape by running over the lower lid. In about one-half the cases of lachrymal stricture the disease of the tear-passage seems to be by it- self the cause of continuous overaction of the tear-gland. 3. Obstruction of the lachrymal canaliculi may result from extension of conjunctival inflammations. Strictures just above or in the lachrymal sac and suppurative in- flammation of the sac, dacryocystitis, are usually, if not always, of nasal origin. The suppuration of the sac in the latter form is, of course, the direct result of the action of pus microbes. It is not merely the more serious forms of nasal disease, like syphilitic ulceration, lupus, and polypi which lead to disease of the lachrymal duct, but more frequently even transient acute catarrh, especially in connection with stenosis of one or both sides of the nose. Quite often a one-sided lachrymal disease corre- sponds to the narrower side of the nose. In a large pro- portion of cases of lachrymal obstruction permanent anomalies can be found in the nose, such as enlargement of the inferior turbinated body and malformation of or crests on the septum. The extension of infection from the sac to the skin covering it (phlegmonous dacryo- cystitis) and the subsequent formation of a lachrymal fistula can sometimes be traced to the influence of an acute nasal catarrh. Dacryocystitis is an occasional occurrence during small-pox. II. Lids. 1. The various forms of diseases of the skin of the lids, eczema, lichen, acne rosacea, and favus, are, as a rule but an extension of the same affection on adjacent parts of the facial skin, and their causes, so far as they are known, are also the same. Herpes, more common in the vicinity than on the lid itself, may, however, also involve the lids, or even be limited to them (herpes zoster ophthal- micus). The accompanying neuralgia and local anaes- thesia show that it is due to disease of the fifth nerve. Globules attached to the cilia like beads on a string are the eggs of lice. Direct infection leads occasionally to a vaccinia pustule on the lid. Chancre of the lid ha's also been observed. Of secondary syphilitic eruptions condylomata are more common than ulcerating papules. Ulceration may be due to lupus vulgaris, lupus erythe- matosus, epithelioma, or rodent ulcer. Multiple tumors of the lids have been seen in leucocy- thamia. Ecchymoses, most commonly of traumatic origin, oc- cur without trauma in scurvy and in purpura hamor- rhagica. 2. Oedema of the lids, if bilateral, is an early sign of re- nal disease and of arsenical poisoning. Mere puffiness, not pitting on pressure, has not this significance. It is not uncommon in irritative nasal disease, especially hay fever, and it may also occur with some slight forms of con- junctivitis, or as the result of any inflammatory action in cornea, sclera, or iris. Irritation of a hypersensitive nasal membrane causes at times a sudden transient, one-sided, or bilateral oedema of the skin of the lids, sometimes resembling urticaria, sometimes more like erysipelas. Frequent repetition of such attacks leaves the lids either dusky or permanently puffy. Genuine erysipelas, i.e., the infection by the streptococcus, differs from these pseudo-erysipelatous attacks by its accompanying fever and its progressive tendency. A condition which a hasty observer can mistake for erysipelas is the inflam- matory oedema of the lower lid induced by the extension of phlegmonous infection from the lachrymal sac to the surrounding skin. 3. The only disease of the tarsus known etiologically is the chronic inflammatory hypertrophy of (late) syphilis. In some instances of a similar disease, however, syphilis is not present. 4. Chalazion, the inflammatory enlargement of a Meibo- mian gland, is perhaps in some, probably rare, instances of tubercular origin, as Tangl1 has found the bacillus tuberculosis, and Koenigshoefer and Maschke2 have ob- served the tuberculin reaction, in such cases. In the majority of cases this harmless tumor is not tubercular, according to clinical experiences as well as bacteriological tests by Weiss,3 and Deutschmann.4 5. Blepharitis, inflammation of the edge of the lid, ap- pears in the squamous, interstitial, and ulcerative forms. In the latter the ulceration is due to pus microbes, but whether the other forms depend on parasites is unknown. There are, however, four conditions, one or more of which often maintain the blepharitis, or cause it to relapse after the cessation of local treatment. These are, (a) eye-strain (hypermetropia or astigmatism); (6) insufficient length of the skin of the upper lid 5 causing gaping of the lids during sleep ; (c) obstruction of the tear-passages, and (d) nasal disease, sometimes in the form of stenosis, some- times in that of atrophic rhinitis. Some of the alleged factors stated in the books as causes of blepharitis, viz., scrofula and unhealthy surroundings, are not confirmed by experience in actual practice. ' Blepharitis is a very common sequence of measles. 6. Of the distortion of the lids, ectropion is mostly due to cicatricial shrinkage of the skin after burns or lupus, sometimes also to hypertrophic swelling of the conjunc- tiva from long-standing irritation by the tears in conse- quence of lachrymal obstruction, especially in elderly people. A characteristic form of ectropion is that due to cicatricial adhesion of the skin to the margin of the orbit from caries of the orbital rim in scrofulous chil- dren. Entropion is most commonly the result of con- junctival shrinkage after trachoma. Inversion of the cilia -trichiasis-is generally due to the same cause ; some- times to long-continued interstitial blepharitis. Partial turning in of the lashes-distichiasis-may occur congen- * The writer has not aimed at absolute completeness in the present place, and will therefore not include the etiological bearing of rare eye diseases based on very exceptional occurrences or on deductions sup- ported by insufficient evidence. On the other hand, it would be super- fluous to merely tabulate those eye-affections the etiology of which is not known. As there is a reference at the end of the article to the general literature of the subject, the quotations in the text are limited to the more important or recent researches, or such as are not included in the references appended. 293 Eye Symptoms. Eye Symptoms. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. itally. In old people with relaxed skin the puffiness engendered by tears under an eye-bandage (after opera- tions), or accompanying irritative diseases of the eye, may cause transient spasmodic entropion. 7. Anomalies of the muscles of the eyelids are always of nervous not of muscular origin. Spasm of the orbi- cularis muscle is either tonic or clonic. The former accompanies to a variable degree all irritative diseases of the anterior part of the eyeball which cause photophobia ; it may be due also to foreign bodies in the conjunctival sac. The most distressing form of tonic blepharospasm is the spasm sometimes persisting in neurotic patients after the original ocular disease itself has disappeared. In some instances its continuance depends on the exist- ence of tender spots (neuritis ?) in the distribution of sensory nerves of the face around the orbit. This is at any rate the interpretation of the curative results ob- tained by Von Graefe and others by neurotomy of the supra-orbital and other nerves. Clonic blepharospasm appears in various forms. Mere fibrillary twitching of a transient character occurs from eye strain and a variety of influences, like overwork, in- sufficient sleep, etc. Fibrillary twitching of the orbicu- laris, as well as the adjoining facial muscles, generally one-sided, the tic convulsif of neurologists, is a serious and often incurable disease of the facial nerve. Its pathology is generally not known ; in certain not com- mon instances it is a reflex which may start from eye. strain 6 or conjunctival irritation (personal observation), from nasal anomalies,1 or from defective teeth. Spasmodic winking of the lids is but a localized form of chorea and quite often the movements, at first limited to the lids, extend later on to other facial muscles. The subjects usually have a neurotic disposition, revealed by the family history or their own neurotic antecedents or subsequent history. Often a reflex origin can be detected, either eye strain (H. or As.) or follicular hypertrophy of the conjunctiva or nasal anomalies, and the correction of these defects may prove the reflex character. It must not be over- looked that the disposition to such exaggerated reflexes is augmented by all influences which lower the resisting power of the organism, as close confinement, overwork, disturbances of digestion, anaemia, etc. Lagophthalmos, the inability to close the eyelids, is the result of paralysis of the facial nerve and may depend on a peripheral facial neuritis (sometimes from disease of the ear or the temporal bone) or on an affection of the central nucleus of tlie facial nerve. Ptosis, the (partial or complete) inability to open the lids, is either due to excessive thickness of the lids (after trachoma or from subcutaneous tumor) or to lesion of the third nerve. A slight form is not rarely congenital, probably from ante-natal nuclear disease (often involving the recti muscles as well). The significance of recent paralysis of the motor oeuli can be treated to better ad- vantage in connection with paralysis of the ocular mus- cles. The lid aperture is of more than average width (but without muscular weakness) in high myopia and in ex- ophthalmus, especially in exophthalmic goitre. Charac- teristic of the latter trouble is Von Graefe's sign. On looking downward the upper lid normally follows the movement of the eyeball, while in exophthalmic goitre the upper lid lags behind, and with extreme downward ver- sion of the eye more than the usual amount of the ocu- lar surface is exposed. III. Conjunctiva. 1. Conjunctival hemorrhages occur in purpura, but also from violent cough, especially whooping-cough, and other violent exertion, as in epileptic attacks or from slight trauma. They have been considered diagnostic of death from asphyxia. If they occur without sufficient provocation in elderly people they indicate vascular dis- ease and danger of apoplexy. The conjunctiva of the eyeball presents the best conditions for the observation of jaundice. (SUPPLEMENT.) Sudden chemosis of the conjunctiva indicates in some instances that a purulent inflammation of the cerebral meninges is encroaching upon the orbital contents. 2. Chronic conjunctival hyperaemia (often associated with blepharitis) is indicative of eye-strain, lachrymal ob- struction, or nasal stenosis. Chronic catarrh is often a secondary infection of a conjunctiva habitually congested. It may depend in other cases on skin diseases, as eczema of the lid, or of parts adjoining it, or it may be the remnant of a former acute conjunctivitis. Acute follicular conjunc- tivitis leaves in some persons a permanent enlargement of the adenoid tissue which at times becomes complicated with catarrhal inflammation, but without it, too, may con- stitute an easily overlooked source of irritation. It is also stated (Foerster) that a chronic catarrhal conjunctivitis of very tedious course may be kept up by masturbation. 3. Acute conjunctivitis is probably always an infection, excepting the form due to the influence of the ultra-violet rays of the electric arc light.8 The severe but transient form, which when epidemic is popularly known as " pink-eye," has been traced by Weeks9 to the invasion by a characteristic small bacillus. There are probably various micro-organisms capable of causing contagious conjunctivitis. Other forms are apparently due to com- mon saprophytic bacteria, which are frequently found in the conjunctiva and always on the skin. Whenever the conjunctiva is wounded or chemically irritated, catarrhal infection commonly follows. Contagious, and hence clearly of parasitic origin, is the form of acute conjunc- tivitis which in many of the persons affected causes fol- licular enlargement and may even resemble trachoma (although different in its course). A rather rebellious form of conjunctivitis, usually not severe, but sometimes leading to considerable hyper- trophy, is at times observed in connection with purulent rhinitis. Transient conjunctivitis is also a regular symp- tom of measles during the initial period. Conjunctivitis w'ith hemorrhages has been observed in attacks of in- fluenza. The most violent conjunctivitis is that caused by the gonorrhoeal virus, usually transferred by tow'els, hands, etc. The gonococcus is likewise the cause of all cases of characteristic conjunctivitis neonatorum. The infec- tion occurs in the vagina and leads to visible inflamma- tion on the third day after birth. If the conjunctivitis appears before this date the case was one of protracted birth w'ith early rupture of the membranes. The proof of the origin of this scourge of infants is furnished both by the regular presence of the gonococcus in the secre- tion as well as by its absolute prevention by means of nitrate of silver (two per cent.) dropped into the con- junctival sac at birth (Credo's method). The insignifi- cant conjunctivitis of babies, of irregular occurrence and of a duration of but a few days, is usually not caused by the gonococcus. Whether this parasite ever occurs in a form of diminished virulence after long existence in the maternal passages is not unlikely on the strength of clinical evidence, but not yet proven. An entirely differ- ent, mild, not dangerous, but persistent form of con- junctivitis, not due to the local action of the gonorrhoeal virus, but occurring during the course of gonorrhoea, has been described by Haltenhoff. Diphtheritic conjunc- tivitis is caused by the bacillus characteristic of diphtheria, but the conditions necessary for its invasion usually es- cape analysis, as the patients are generally free from diph- theria in other parts of the system. It has been, how- ever, produced by the coughing of diphtheritic patients hurling the virus into the eye of the attendant. Whether croupous conjunctivitis is due to the same parasite is not yet known. Trachoma or granular conjunctivitis is a disease so unmistakably contagious that there can be no doubt as to its parasitic origin. Yet none of the attempts made by Sattler, Michel, and various others to identify the virus (as a micrococcus) have led to satisfactory or con- vincing results. The disease has often occurred in an epidemic form in former times in armies, schools, and other institutions. Cleanliness and isolation have within recent years diminished the frequency of such epidemics. 294 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Eye Symptoms. Eye Symptoms. In its non-epidemic form the disease is not apt to spread to others as long as care is taken in the use of towels, handkerchiefs, etc. Hence it is evident that unsanitary surroundings and poverty favor its spreading. A factor, which the writer believes has not received due attention, seems to account for the variable contagiousness. Ob- servation shows that the disease is, or at least can be, transferred by means of the conjunctival secretion. Sporadic cases, however, of pure trachoma are often not accompanied by any secretion whatsoever, or show pus only during periods of aggravation. Epidemic tracho- ma, on the other hand, furnishes copious conjunctival pus. It seems, therefore, not unlikely that the more virulent and contagious forms of granular lids represent a mixed infection by the trachoma virus, associated with some microbe causing catarrhal inflammation. Burnett has pointed out that the negro has nearly ab- solute immunity against trachoma. Chibret has likewise credited the Celtic races of Europe with being less prone to take the disease,10 a statement which is not confirmed by the distribution of the disease in this country. Chi- bret has also called attention to the comparative immu- nity of localities of an altitude over two hundred metres, from which rule numerous exceptions, however, have been pointed out by others. Occasionally trachoma is limited to one eye. Whether the disease in these instances is etiologically different from ordinary bilateral trachoma is not known. The writer has observed the frequent co- incidence of one-sided trachoma with one-sided nasal ob- structive lesions. Goldzieher 11 has described a disease resembling tra- choma, but due to syphilis and curable by antisyphilitic treatment. 4. Xerosis, an inflammation with the occurrence of char- acteristic white, fatty-appearing spots on the conjunctiva, and often leading to corneal ulceration, or even necrosis, is a disease indicative of grave danger to life, and is ob- served mainly in ill-nourished infants. The disease is often accompanied by hemeralopia. Von Graefe origi- nally described it as coincident with encephalitis, but Jastrowitz 12 has since shown that the lesions found in the brain, viz., fat-granules in the neuroglia cells, do not signify inflammatory, but simply degenerative change. Indeed, xerosis has been seen in the course of various exhausting diseases-typhus, small-pox, etc. Jewezki13 has seen the disease remarkably often among workmen in a glass furnace. In the xerotic patches Kuschbert and Neisser have found a pure cult- ure of a characteristic bacillus. But while the existence of this bacillus has been confirmed, it has been shown by Fick, Weeks, and others, that it is but a common parasite of the normal conjunctival surface, and not pe- culiar to or causative of xerosis. 5. Tuberculosis of the conjunctiva may either result from extension of the same disease in the nasal cavity or from metastasis of tuberculosis of internal organs. 6. Pemphigus of the conjunctiva has been seen in connection with pemphigus of the skin. It may lead to partial or complete obliteration of the conjunctival sac by adhesion of the lids to the eyeball. IV. Sclera. Episcleritis occurs in some instances in persons of rheu- matic or of gouty history and is often influenced by cor- responding remedies (salicylates and antipyrin) in such a decisive manner that a rheumatic or-as the case may be-gouty origin is strongly suggested. In other in- stances, however, no such relationship can be demon- strated. V. Cornea. 1. The superficial opacity of the cornea with new for- mation of vessels known as pannus is the result either of irritation by inverted eyelashes or of trachomatous dis- ease of the lids. A circumscribed surface opacity with vascular connection is sometimes caused by a relatively bland foreign body (especially grain-husks) embedded in the cornea. Another form of superficial vascular kera- titis beginning with circumscribed corneal exudations near the limbus, and of very persistent course, the writer has found associated with hypertrophic rhinitis. 2. Herpes vesicles limited to the cornea have been de- scribed by Horner as a not infrequent occurrence (to- gether with herpes labialis) during the course of or after inflammatory disease of the respiratory passages. 3. Phlyctenular keratitis, usually considered indica- tive of infantile scrofula, is so often associated with, or preceded by, subacute suppurative rhinitis that a causa- tive relation of the latter is strongly suggested. This form of rhinitis and consecutively corneal phlyctenulae frequently follow measles. Attention has also been called to the frequent coincidence of head-lice and phlyctenulae (rare in this country). On the other hand, both clinical sequence as well as therapeutic results show that eczema of or around the lids and ulcerative blepharitis may in- duce phlyctenular disease as well as even deeper corneal infiltration. The attempts to identify the alleged micro- organism of phlyctenular keratitis (Burchardt) cannot be called satisfactory. 4. A superficial form of linear corneal infiltration (with loss of epithelium) assuming an arborescent shape has been referred by Kipp 14 to malarial influence, on ac- count of the patient's history and the influence of quinine on this disease. But a similar form has been met with by Emmert in non-malarial cases, and termed by him kera- titis dendritica. It has been seen more often following influenza during the recent epidemics. Another form of corneal disease, characterized by its name keratitis punc- tata superficialis, has also been described but very re- cently, and has been known to follow in the wake of in- fluenza, Superficial corneal infiltrations, often leading to ulceration, depend often upon disease of the conjunc- tiva, especially trachoma, but also, though less fre- quently, on chronic catarrhal conjunctivitis with hyper- trophy of the fold of the fornix. Another source of similar corneal disease is ulcerative blepharitis. 5. Inflammation of the substance proper of the cornea often occurs without assignable cause. A variety has been ascribed by Arlt to rheumatic influence, and is said to be characterized by the ground-glass appearance of the cornea, by epithelial abrasions, which sometimes lead to shallow ulceration, and by the indolent course. Recent observations (Berger) confirm the view as to the rheumatic origin of this form by the marked influence upon it of antipyrin and salicylates. A similar form of keratitis the writer has seen following herpes frontalis. The existence of a gouty keratitis in the form of small circumscribed interstitial opacities has been confirmed by Chevallereau by the chemical detection of uric acid in the opaque spot. The most characteristic form of deep keratitis of ex- tremely indolent course, usually affecting one eye ahead of the other and followed regularly by the formation of a very delicate but persistent net-work of vessels in, and not merely on the surface of, the cornea,16 occurs in chil- dren or young persons with hereditary syphilis. Most observers agree that this disease is by itself diagnostic of inherited syphilis. It has also been asserted that some forms of interstitial keratitis depend on carious teeth and yield only to the extraction of the latter (Galezowski). A central interstitial keratitis, often with iritis, has been found by Chibret associated with neuralgia of the fifth nerve and apparently secondary to the latter trouble. 6. What is commonly called keratitis punctata, or kera- titis postica, is not a disease of the cornea itself, but a deposit of clusters of cells on the posterior surface of Descemet's membrane in connection with the serous (or, much more rarely, the plastic) form of iritis, and also in certain acute attacks of circumscribed chorio-retinitis.16 7. Corneal ulceration is the result of local infection, and in those instances of spreading ulcer (ulcus serpens) which have been examined bacteriologically the pus- forming staphylococci and streptococci were found. As these micro-organisms are widely disseminated, they can easily gain access to any wound, or even scratch, by for- eign bodies. The most virulent infection results from the presence of the pus of dacryocystitis. Where such 295 Eye Symptoms. Eye Symptoms. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) virulent pus is not present, it evidently requires special conditions, but imperfectly understood, for the occur- rence of progressive infection. Some of these condi- tions are pre-existing disease of the conjunctiva, espe- cially trachoma, lacerated wounds of the cornea, for in- stance, by sawdust blown into the eye, and an enfeebled state of the system, as on recovery from typhoid fever and other exhaustive diseases. Variola may cause cor- neal ulcers either by the extension of pustules localized on the cornea or by infiltration occurring at a later stage, which subsequently breaks down. Ulcers also occur, though not commonly, in diabetic patients. In scrofu- lous children some ulcers, of a very persistent character, give the characteristic reaction to tuberculin injections and heal under its use so promptly as to raise a suspicion as to their tubercular origin. But the presence of the tubercle bacillus has not yet been demonstrated. 8. Necrosis of the cornea-complete or partial-has been observed in consequence of invasion by mould fun- gus (aspergillus glaucus, Leber). The cornea turns yel- low and the disease is accompanied by pus in the ante- rior chamber. Necrosis of the cornea is also a rare complication of facial erysipelas. After experimental division or destructive disease of the fifth nerve, corneal necrosis is common, unless the lids are kept closed. It is not yet definitely known whether this accident results only from trauma and desiccation of the exposed and anaesthetic cornea, or whether the trigeminus exerts an influence on its nutrition. 9. A neurosis of the cornea, characterized by intense pain and photophobia, but with scarcely any injection of the pericorneal vessels, is sometimes seen weeks or months after minute injuries to the cornea. Careful in- spection shows that it is due to an inflammatory condi- tion of the minute cicatrix left by the injury. VI. Iris. 1. Unequal intensity of color of the iris of the two eyes has been found by Fere11 sixty-two times in the examina- tion of seventy-six cases of hysteria, and is considered by him as a characteristic hysterical stigma. Discoloration of an iris (especially a blue iris) may, however, remain as well after iritis. The existence of a past iritis is revealed by deposits on the anterior capsule of the lens, which are rarely absent when the dilated pupil is examined (unless the iritis was treated early and thoroughly by atropia). 2. Plastic iritis may depend on various well-known causes. A localized inflammation of the iris results from the pressure of a swelling lens undergoing cataractous change, even where no infection exists. Severe contu- sion of the eyeball is often followed by iritis, probably due to secondary infection. Ulcers of the cornea frequently lead to the same result, and iritic complication is not rare in parenchymatous keratitis, whatever be its cause. The most frequent cause of non-traumatic iritis is syphilis. Syphilitic iritis is an early manifestation, and usually bi- lateral. In the later stages of syphilis a (one-sided) iritis is sometimes seen with gummatous tumors in the iris. It must not be overlooked that in a person who has once acquired syphilis, iritis may also occur from other causes, in which case anti syphilitic treatment has no influence upon it. Another known cause of iritis is rheumatism. While the origin is often suggested by the patient's pre- vious or present rheumatic history, it can be but rarely proven by any specific influence of recognized anti-rheu- matic remedies. Very often the name " rheumatic " iritis hides our ignorance of its causation. Iritis may also accompany gonorrhoeal rheumatism, and is indeed some- times observed as the only manifestation of this disease. Whether gout can provoke iritis is still a matter of doubt. Similar doubts exist as to the origin of iritis from kidney disease. Diabetes leads occasionally to a rebellious iritis, which improves when the systemic condition is con- trolled. Influenza has been followed rather frequently by iritis during the recent epidemics. In leucocythoemia characteristic infiltration with diffuse inflammation has been observed in the iris. Tumors in the iris, with sub- sequent diffuse iritis, can be referred etiologically either to this disease, viz., leucocythamia (rare), to tuberculosis, or most commonly to syphilis (gummata). A cause of iritis which has as yet received but insuffi- cient attention is nasal suppuration. Ziem has pointed out the possible connection between rebellious iritis and suppuration of the accessory sinuses (especially the maxil- lary antrum). The writer's experience has also included cases of recurrent iritis which were regularly preceded by acute coryza. Iritis is usually one of the manifestations of sympa- thetic ophthalmia, the inflammation of an eye due to chronic inflammation of the ciliary region of the other eye, generally dependent on the presence of a foreign body. Such iritis is, however, associated with inflamma- tion of the ciliary body, and often also of the deeper parts of the eye. Unlike the plastic form of inflammation, serous iritis is a local disease of which we know no etiological con- nection with other disturbances. VII. Pupil. 1. The pupil is smaller during the first few weeks of life, and also during the senile period, than during youth and middle age. It is also narrower in hypermetropia than in the short-sighted eye under the same illumina- tion. The absolute width varies inversely with the in- tensity of the light. 2. The pupil is contracted in iritis as well as in severe inflammation of the cornea or conjunctiva, or even in in- tense irritation by the presence of foreign bodies. It is characteristically wide and immobile in glaucoma, even if attended by inflammatory symptoms. It enlarges in all diseases of the eye or optic nerve in which the sensi- bility to light (not merely the distinctness to sight) is re- duced, and attains a medium width in one-sided absolute blindness. If the pupil is normal in size and reaction in an eye said to be blind, the condition is either hysteria or simulation. The pupil is still wider in bilateral blind- ness, as the perception of light by one eye influences the pupil of the other. The pupil of a blind eye, therefore, still responds to the illumination of the other (sensitive) eye. If in double sided blindness the pupils react to light, the lesion must be situated in the brain above the pupillary centre in the corpora quadrigemina, i.e., in the cortex or white substance of the occipital lobes. Such instances have been observed after cerebro-spinal menin- gitis. 3. A wide and absolutely immobile (i.e., not sensitive to illumination) pupil indicates paralysis of the motor oculi nerve, be it by the effect of drugs on its termina- tion, by disease of the trunk, or of the central origin of the nerve. The pupil, if wide from inactivity of the third nerve, is enlarged still further by the local effect of atropin. Dilatation of the pupil is also caused by activity of the cervical sympathetic nerve, either experimentally or as the result of irritating lesions in acute disease of its ori- gin in the cervical spinal, cord. Under these circum- stances the reaction to light is not impaired. The influ- ence of the sympathetic upon the pupil is also manifested in a reflex manner whenever painful impressions are made upon the skin. This dilatation, very slight ordi- narily, is more easily observed in so-called "nervous" subjects, but particularly during incomplete ether or chloroform narcosis. Indeed, during surgical anaesthesia the pupil is an index of the sensibility. Contraction of the pupil indicates activity of the third nerve or paralysis of the sympathetic. In paralysis of the cervical sympathetic in man, from disease or injuries, the resulting contraction is only moderate and not always permanent. 4. The pupil is contracted during natural sleep and during narcosis, but dilates whenever pain is felt and whenever asphyxia occurs. The narrowness of the pupil during opium stupor serves to distinguish this condition from coma, in which the pupil is wide. 5. Pupillary disturbances are very common in diseases of the nervous system, but they are generally not charac- 296 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Eye Symptoms. Eye Symptoms. teristic symptoms. In meningitis narrowness is usually seen, while dilatation in this disease indicates brain press- ure from effusion or hemorrhage. All localized destruc- tive lesions in the brain dilate the pupil when they in- volve the nucleus or the trunk of the third nerve-for instance, syphilitic meningitis, apoplexy, and embolic in- farctions. In general paresis pupillary symptoms have been found in one-third to two-thirds of all cases. They consist rather in equality of the two pupils than in marked dilatation or contraction in either eye. In fact, inequality of the two pupils, if not explicable by an intra-ocular or peripheral nerve lesion, may be considered a grave symp- tom, even during apparent health, indicative of cerebral changes. It is a very common precursor of various forms of insanity. 6. Pupillary inequality occurs in at least one-third of tabetic patients, usually early. Less common in this dis- ease is the "Argyll-Robertson pupil"-a marked con- traction without reaction to light, but with slight increase in the contraction during efforts at accommoda- tion (usually bilateral). The same form of pupil occurs also in other forms of disease of the cervical spinal cord. In Pott's disease of the cervical region the pupil is occa- sionally disturbed, sometimes dilated, more often con- tracted'. Epileptics often show a permanently wide pupil. The same may result (by reflex stimulation of the sym- pathetic ?) from pelvic or intestinal irritation (worms). Various transient pupillary changes are not uncommon in hysteria. Enlarged glands, tumors, and aneurisms pressing upon the cervical sympathetic nerve cause pupillary contraction. 7. Pupillary dilatation and immobility, with paralysis of the accommodation, is a characteristic symptom of ptomaine poisoning from tainted meats, sausages, or fish. The same paralysis of the third nerve occurs in belladonna poisoning. Whenever this condition comes on suddenly, either in one eye or in both, without other nervous symp- toms, the first suspicion should be that of local atropin or belladonna action. VIII. Accommodation. 1. Enfeeblement of the accommodation reveals itself by inability to read or to see distinctly at a proximity at which the patient could formerly see distinctly. As the accommodative power diminishes normally from youth until about the fifty-fifth to sixtieth year, when it is prac- tically lost, the age of the patient must be taken into ac- count in all consideration of the faculty of adjustment. Likewise the refraction of the eye must be known before the accommodation can be measured. Of intra-ocular conditions the prodromal stage of glaucoma manifests itself by rapid diminution of accommodation. 2. The accommodative power is further reduced in many conditions which derange nutrition or lower the general vigor, as neurasthenia, kidney disease, diabetes, derangements of the liver, after hemorrhages, and during recovery from exhausting fevers. More characteristic is the influence of carious teeth, in consequence of which Schmidt18 saw the accommodation enfeebled 73 times in 92 instances, and sometimes only on the side of the de- fective teeth. This observation does not seem to have been confirmed by others. 3. Absolute paralysis of the accommodation without pupillary change follows diphtheria very frequently in the course of two to four weeks. It is indeed charac- teristic of the after-effect of the diphtheritic poison. Whether the same paralysis can follow scarlatina and mumps, or whether an error had not been committed in the diagnosis of these affections in the instances observed is an open question, with greater probability of the latter view. An incomplete paralysis of the accommodation, with either normal or contracted pupils, may be a hyster- ical symptom, but occurs also in ataxia. 4. When accommodation and sphincter of the iris are paralyzed together, the cause may be local or general belladonna influence, ptomaine poisoning, or lesions of the third nerve, particularly cerebral syphilis, less commonly ataxia. 5. Spasm of the accommodation is a term often misap- plied in ophthalmic literature. The correction of far- sightedness by involuntary contraction of the ciliary muscle is not a spasm properly speaking, as it serves a useful purpose and is not maintained when the eyes are not used in the dark. It is distinguishable from true spasm by relaxing under ophthalmoscopic examination. True spasm simulating myopia is not common. It occurs perhaps more often in low degrees of astigmatism than in any other condition, and is brought on by over- use of the eyes and a neurotic disposition. The writer has once seen it accompany hemiplegia from brain lesion. IX. Asthenopia. 1. The inability to use the eyes persistently, on ac- count of indistinctness of sight or discomfort and pain, headache, and other nervous symptoms induced by steady application, is so common a complaint, and due to so many different influences, that it deserves special men- tion in an article of the present scope. While the most important cause of asthenopia are optic defects, viz., hypermetropia, astigmatism, or insufficiency of tlie ac- commodative power, we cannot ignore accessory in- fluences due to conditions of the general system even in connection with ametropia. Besides asthenopia may oc- cur in optically perfect eyes. According to the writer's experience in private practice about twenty-five per cent, of the patients with asthenopic complaints do not belong to the class which can be relieved by glasses. 2. The cardinal symptoms which indicate anomalies of refraction (II. or As.) or insufficient accommodation (presbyopia) are either blur on persistent eye-use or dis- comfort, described as fatigue and ache (much less com- monly as a burning or shooting pain) or both. But in patients with any neurotic disposition-and this com- prises a large class of civilized communities - these annoyances are apt to be complicated by headaches, feeling of pressure in the head, and, more rarely, ver- tigo, or even nausea. While such accessory neuroses can be checked just as promptly as the asthenopic symptoms proper by means of suitable glasses, and their dependence on eye strain be thus proven, a critical ex- perience shows that they occur only in individuals whose antecedents or family history indicate a neurotic disposition, or who have been subjected to damaging in- fluences, as continued overwork with confinement, anae- mia, or diseases deranging nutrition, like intestinal dis- turbances, or who are the victims of neurasthenia. In- deed, by removing such injurious factors, if possible, the neuroses can sometimes be relieved without attention to the eyes, although the eye strain persists. It can be further observed that the degree of ametropia which can exist in different persons without asthenopic complaints varies with the health and muscular vigor. While deli- cate individuals may at times be sensitive to half a diop- try of astigmatism, or three-fourths dioptry of hyperme- tropia, persons in perfect health do not necessarily suffer from two dioptrics of ametropia until age reduces their accommodation, or weakening influences of any kind en- feeble their power of endurance. 3. Other ocular conditions which may cause asthen- opia are blepharitis and chronic conjunctivitis (especially when due to lachrymal obstruction), the intra-ocular irri- tation due to myopia (not the mere optic condition of AL), and slight choroiditis, perhaps not yet sufficient to damage sight. These causes are more apt to produce burning and smarting eyes, sometimes with blur, on us- ing the eyes, as contrasted with the predominance of ach- ing from accommodative or refractive anomalies. To what extent anomalous tension of the external muscles of the eyes is responsible for asthenopic symp- toms is at present a subject of much discussion. That a cer- tain class of authors have enormously exaggerated the im- portance of so-called " heterophoria," or want of balance of the recti muscles, cannot but be patent to any un- biased observer in practice. On the other hand, cases do certainly occur, even if they are not common, in which asthenopia and discomfort are associated with tendency to 297 Eye Symptoms. Eye Symptoms, REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) strabismic deviation of the eyes whenever binocular vi- sion is obviated. But whether these two conditions bear a causal relation to each other, or whether both are in- dicative of neurasthenia, requires further study. 4. Of extra-ocular causes of asthenopia nasal anoma- lies-stenosis or suppurative processes-are the most im- portant. Nasal influence manifests itself, however, more frequently in the form of itching and burning of the lids (especially in the morning), and irregular, dull, or shooting pains than in the form of typical asthenopic symptoms, although the latter, too, are sometimes refer- able to a nasal origin. A variety of influences-anaemia, recovery from exhausting diseases, stomach troubles, defective teeth-may cause asthenopia indirectly by en- feebling the accommodation, but such cases may be termed of accommodative origin, and can be benefited by glasses. In other instances, however, neurasthenia proper, or the nervous breakdown from disturbed diges- tion, leads to inability to maintain the use of the eyes without increasing discomfort, which no glasses can benefit. Foerster19 has described, under the name kopiopia hysterica, a variety of incurable asthenopia, dependent on chronic sclerosing parametritis. No con- firmation of his observations have as yet been recorded by others. X. Lens. 1. Opacity of the lens, cataract, occurs w'henever any extensive rent is made in the lenticular capsule by any traumatism. It may result also from severe con- cussion of the eyeball, without perforating wound, fol- lowing the injury in such cases in the course of weeks or months. Of intra-ocular conditions which may lead to cataract may be mentioned recurrent attacks of iritis, chronic cyclitis, chronic or absolute glaucoma, chronic choroiditis, and retinal detachment, as well as high de- grees of progressive myopia. Senile cataract is very common in advanced age, even in perfect health and with ideal eyes, especially if we examine the extreme periphery of the lens. Fortunately not every instance of peripheral senile cataract proceeds to opacity of the pupillary area. 2. The most common condition leading to premature senile cataract is diabetes mellitus. Whether kidney dis- ease has the same influence, as Deutschman has asserted, is not yet definitely decided. Hogg20 has called attention to the frequent association of prostatic enlargement and stricture of the urethra with senile cataract. 3. Zonular, or lamellar cataract, commonly congenital and not rarely a family anomaly, has been referred by Horner and his disciples to the influence of rickets (some- times ante-natal). While the coincidence of the two affections has been shown to exist in about forty per cent, of the cases, no such relationship can be proven in other instances. 4. Cataract has been known to come on rapidly in per- sons struck by lightning. Diffuse cataract can be produced in animals by naph- thalin poisoning. XL Choroid and Vitreous Body. 1. Choroidal changes occur frequently in high degrees of myopia. The least dangerous lesion is pigmentary absorption, permitting a view of the choroidal vessels. More serious is hypertrophy of the pigment in the form of irregular masses. The gravest form is constituted by central white plaques (of inflammatory or atrophic origin ?) which damage central vision. Hemorrhages into the retina and vitreous body, evidently from choroidal vessels, are another familiar accident in strongly myopic eyes. 2. In the more common forms of choroiditis, character- ized by yellowish plaques of infiltration, generally with pigmented border and later on by white atrophic spots with diffuse pigment proliferation, and not due to myopia, no cause can, as a rule, be ascertained, except it be syphilis. But the statements as to the frequency of syphilitic choroiditis vary very much. Extreme opinions are, per- haps, represented by Hutchinson21 and by Alexander.22 While the former maintains that syphilis should be sus- pected in every case and its existence tested by mercury, although he admits that it is not the only cause of choroiditis, Alexander-from an exceptionally large ex- perience- believes that syphilis is not responsible for areolar or disseminate choroiditis, except when associated with opacities of the vitreous body. The same observer, in harmony with general experience, describes as syphi- litic the following forms, viz. : a, irido-choroiditis with vitreous opacities; b, vitreous opacities without visible choroidal change, except, perhaps, atrophic patches in the most anterior region ; c, gummata in the choroid ; d, diffuse chorio-retinitis, especially in the peripheral parts of the ocular tunics, simulating retinitis pigmentosa (the same form may occur in hereditary syphilis); and e, many of the cases of the ordinary areolar or disseminate cho- roiditis, if attended with vitreous opacities, and especially so, if they become complicated with a central exudative chorio-retinitis, characterized by the sudden appearance of a white plaque near the macula with opacity of the vitre- ous and deposits on the posterious surface of the cornea, as described by Bergmeister. Yet the present writer has seen three cases which correspond exactly to Bergmeister's description, except that they were not preceded by pre- vious choroiditis and pursued a less malignant course, but which occurred in patients/ree from syphilis. 3. In the course of cerebrospinal meningitis a purulent choroiditis (sometimes irido-choroiditis), and always (?) binocular, characterized by a yellow reflex on illuminat- ing the pupil, is not uncommon. It necessarily leads to atrophy of the eyeball. Browne23 has described another variety of choroiditis, in the form of a few central whitish foci, either reabsorbed later on or leading to circum- scribed atrophy, as characteristic of a transient meningitis in children. A suppurative choroiditis due to septic em- bolism and leading rapidly to suppurative ophthalmitis, generally one-sided, but sometimes even affecting both eyes, is an occasional accident in pyaemia, particularly, but not exclusively, of puerperal origin, lielapsing fever is often followed by various forms of choroiditis, partic- ularly a serous irido-choroiditis, with opacities in the vitreous body (Logetschnikow). Malarial poisoning also may affect the uveal tract, manifesting itself in some in- stances by vitreous opacities even with hemorrhages, in others by a diffuse chorio-retinitis. 4. Opacities in the vitreous body occur in many of the more acute forms of choroiditis. They may be formed, however, without ophthalmoscopically visible (or easily overlooked) changes in the choroidea, from traumatism by perforating or blunt force, in myopic eyes or in the course of syphilis and malaria. In many instances no local or constitutional cause can be detected. 5. Hemorrhages occur in the vitreous body from trauma, violent exertions (probably only in the case of sclerotic or other vascular disease), in progressive myo- pia, in malaria, purpura, and in high degrees of anaemia, and in hypertrophy of the left ventricle of the heart. 6. The vitreous may be the seat of a free cysticercus vesicle, the embryo of which has entered the eye through the blood-vessels in consequence of eating measly pork (more rarely from auto-infection from an intestinal taenia). 7. In extensive miliary tuberculosis - and less fre- quently in tubercular meningitis-tubercles may be seen in the choroid by means of the ophthalmoscope, in the form of multiple yellowish raised exudations in the cho- roidal tissue underneath the normal retina, of a size less than that of the optic disk. Single larger tubercular tumors in the choroid are less common. Of course, tuber- culosis leads soon to further' inflammatory charges and opacity of the media. XII. Retina. 1. Of all intra-ocular lesions, the affections of the ret- ina and of the optic nerve are of the greatest interest to the general practitioner on account of their frequent dependence on nervous or constitutional lesions which are not rarely revealed by this localization earlier than by any other symptoms. 298 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Eye Symptoms. Eye Symptoms. In the normal eye ophthalmoscopic examination does not show any pulsation of the retinal arteries, but very often a slight pulsating movement is seen in the larger portions of the retinal veins as they are traced in their course across the bright optic disk. The systolic dilata- tion of the arteries is evidently too slight to be seen or- dinarily in vessels of such small calibre. But the in- creased intra-ocular tension caused by the systolic influx of blood suffices to compress visibly the more yielding veins. Where the intra-ocular tension is low, or where the sclera is freely distensible the venous pulsation is not visible. On compressing the eyeball with the finger, the pulsation of the veins becomes more distinct, and with increasing pressure the arteries also begin to pulsate visi- bly. When the intra-ocular tension is increased by glau- coma the arterial pulsation is likewise manifest. 2. Pulsation of the retinal arteries without increased tension of the eyeball or other ocular symptoms is often found in insufficiency of the aortic valves, much less fre- quently in other cardiac or valvular anomalies. It has also been seen in rare instances of extreme anosmia (and sometimes in acute fever, pneumonia, and phthisis). Very feeble arterial pulsation has been observed in one eye in aneurism of the arch of the aorta, or of the large arteries of the neck on the corresponding side of the body. Dilatation of the retinal arteries up to the normal calibre of the veins was observed by Becker in exophthalmic goi- tre (four times in six cases). Of extreme dilatation of all retinal vessels, Knapp records a case in connection with general dilatation of the vascular system. Venous con- gestion due to compression of the jugular veins, by goitre and other tumors, or to pressure of any kind upon the venae cavae, may reveal itself, too, in the veins of the ret- ina. In a case of venous congestion due to cardiac mal- formation, Liebreich found the retinal veins distended and of a cyanotic appearance. 3. Miliary aneurism of the retinal arteries coexistent with miliary aneurism of cerebral arteries (the most fre- quent cause of apoplexy) have been found at autopsies, but have but rarely been seen ophthalmoscopically. 4. Sclerosis of the walls of the arterial system extends into the retinal vessels in about one-half of all cases (Raehlman 24). It reveals itself by tortuosity of the ves- sels, and thickening and opacity of their walls, so that the (normally invisible) walls are indicated by a marked double contour. There are irregular contractions in the calibre of the vessels, so that the column of blood may appear spindle-shaped in some of the branches. As long as hemorrhages have not occurred vision is not dis- turbed. Changes similar to those produced by arterio-sclerosis have been observed in the retinal arteries in advanced syphilis. Indeed, in this disease the thickening of the wall may proceed to obliteration of the calibre of an arterial branch. Fuerstner and Haab have shown that this oblit- erating syphilitic endarteritis co-exists in the retinal and cerebral arteries, and that the ophthalmoscope may hence facilitate the diagnosis of cerebral syphilis. Frequently the changes in the syphilitic retinal vessels, however, are accompanied by syphilitic retinitis. 5. Very characteristic changes are found ophthalmo- scopically in embolism of the central artery. With im- mediate blindness the retinal arteries are found nearly empty (at least at first), the veins distended, and turbidity around the edges of the disk, with a cherry-red spot in the centre of the macula. The embolus is derived from some lesion in the heart or arterial system, but in some instances no source can be found. Kern25 has recently shown that the diagnosis of embolism in the alleged cases is often wrong, and that the lesion may be a thrombus in an atheromatous artery. Sometimes only a single retinal branch is obliterated. A few times the permanent blind- ness was preceded by short transient spells of blind- ness, perhaps due to temporary occlusion by an embolus too small to arrest the circulation completely, but in- creasing in size by gradual coagulation in the vessel. Remarkable narrowness of the arteries has been ob- served in a few instances of sudden blindness in persons with enfeebled circulation, but in whom no embolus ex- isted in the vessels (Alf. Graefe and Knapp). While the pathology of this "ischaemia retinae," as it was termed, is not clear, the influence of the retinal anaemia upon the sight was proven by the relief on lowering the intra-ocular tension (by paracentesis or iridectomy). 6. Retinal hemorrhage may occur in the course of most forms of retinitis or severe inflammation of the op- tic nerve. They are very profuse and multiple in thrombosis of the central vein of the retina, a condition manifesting itself by intense congestion and tortuosity of all the veins, with hemorrhages along the vessels and in- flammatory cloudiness of the papilla.* Thrombosis of the vena centralis is sometimes referable to general ill-nu- trition (marasmus), sometimes to pulmonary emphysema- oftener to disease of the heart or arteries. It has also been observed after extensive burns of the skin, and after facial erysipelas. Emphysema of the lungs, if complicated with hypertrophy of the left ventricle, is also apt to cause retinal hemorrhages without thrombosis. Hemorrhages into the retina are observed as well in per- nicious anosmia, and even in ordinary severe anosmia from loss of blood in kidney disease, in diabetes, in gout (?), in disease of the liver with jaundice, after trauma of the eye, after violent exertions or coughing-spells, and after death by asphyxia. If produced in apparent health, without trauma to account for them, they indi- cate vascular disease, arterio sclerosis, fatty degeneration, or syphilitic endarteritis, and serve as a warning of threatening cerebral apoplexy. There has been observed, however, a rare form of extensive hemorrhage in young people (of fifteen to twenty-five years) in apparently per- fect health, in whom it has no such grave general signifi- cance. The disturbance of sight produced by hemorrhages depends on their size, extent, and location. 7. Inflammations of the retina present so many differ- ent characteristics that the ophthalmoscopic observer can recognize their cause in the more typical forms with certainty and even in the less pronounced instances with some probability. The most common form, viz., the re- tinitis albuminurica complicating kidney disease-always bilateral-consists in its simplest form in turbidity of the edges of the disk, fatty-looking white patches, often with brownish border, in the retina, at first near the papilla and later on all over the fundus, dilatation of the veins, and hemorrhages partly along the vessels, partly in the form of small spots around the centre of the retina. Later on, a characteristic star-figure, made up of small white dots around the macula, is common. The walls of the vessels often appear as visible white con- tours. But deviations from this type also occur. The disease is sometimes limited to a narrow zone around the papilla, and still more rarely consists only in in- flammation of the optic disk with hemorrhages. Albuminuric retinitis, especially in the last-mentioned forms, may be simulated (rarely) by optic neuritis of cerebral origin. In its less pronounced type it resembles the retinitis caused by diabetes. In most instances, how- ever, the ophthalmoscopic examination can recognize kidney disease when manifested by retinal lesions. Retinitis occurs in at least seven per cent, of all cases of renal affection. It is most common in interstitial nephritis, less so in parenchymatous kidney disease, and rare in amyloid kidney. In nephritis following scarlet fever and the kidney trouble of pregnancy the retinal lesions are not considered of prognostic sig- nificance and may disappear without in jury to sight as the causative affection heals. But in Bright's disease, not coming under this etiological category, it is a sign of great importance. Miley26 examined 164 cases of Bright's disease with regard to the significance of the albuminu- ric retinitis. Of 51 patients who had retinitis, 27 died inside of two years ; while of 105 whose eyes were nor- mal only 28 succumbed within the same time (8 patients * It is not yet certain whether these appearances are necessarily due to thrombosis or whether there exists a hemorrhagic or apoplectic reti- nitis without thrombosis. 299 Eye Symptom*. Eye Symptoms. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) had other ocular lesions independent of their disease). According to microscopic researches by the Duke Charles Theodore (of Bavaria) the retinal lesions are the result of hyaline degeneration and obliterating endarteri- tis of the retinal vessels. 8. Diabetic retinitis in its most typical form consists of small white spots irregularly scattered throughout the centre of the retina, not arranged in star-figure, without colored border, and without involvement of the optic disk. The disease is bilateral, but often more advanced in one eye. If the ophthalmoscope shows in diabetes retinal lesions like those of Bright's disease, albumin will also be found in the urine. In other cases of dia- betes mellitus there occurs no typical retinitis, but simply hemorrhages followed by irregular patches of white retinal degeneration. Many such eyes become af- fected with glaucoma. 9. Diffuse, but more or less striated retinal opacity with copious hemorrhages along the dilated vessels, especially near the retinal centre, is seen occasionally in leucocy- thasmia, while a similar form of retinitis, but, it is said, with more diffuse multiple but small hemorrhagic spots, is more characteristic of pernicious anosmia. 10. Syphilis may affect the retina in various ways. The typical simple retinitis of syphilitic origin described by Jacobson appears as slight cloudiness of the papilla and retina with venous dilatation and, usually, fine vitreous opacities, but without plaques or hemorrhages, and gen- erally with but moderate interference of sight. It is an early form, usually occurring inside of two years after in- fection, and being protracted only if not treated. In other instances more marked opaque striae accompany the ves- sels as they emerge from the papilla. Ole Bull considers a very faint peripapillary opacity and vitreous turbidity as quite common in the first period after infection, and claims that it is characterized by an irregularly ring- shaped relative scotoma, which surrounds the point of fixation but includes the blind-spot (optic disk), but he states that the scotoma can only be detected with gray, not with white objects. Hirschberg,21 on the other hand, states that there oc- curs, commonly within the first two years of syphilitic in- fection, a form of retinitis, or perhaps syphilitic panoph- thalmitis, which is not rarely overlooked, as it need not reduce sight much, but may annoy the patient by flicker- ing. It is accompanied often by fine deposits on the ■posterior surface of the cornea, and usually by fine vitre- ous dust, while in the retina there can be seen, on close examination, faint pinkish-yellow, later on, whitish spots, adjoining some of the smaller vessels in a manner com- parable to berries on a stem. The form of retinitis characterized by Von Graefe as a late manifestation of syphilis and termed by him central relapsing retinitis, as it appears in the form of a central grayish retinal cloudi- ness which relapseseven under specific treatment, does not seem to have been often observed. Late syphilis also manifests itself by obliterating endarteritis in the retina, sometimes with hemorrhages. The retina is likewise involved, as seen by its turbidity and the invasion of its anterior layers by pigment in the diffuse chorio-retinitis observed both in tertiary and in hereditary syphilis (the disease beginning peripherally in the latter case and re- sembling retinitis pigmentosa). 11. In gout Hirschberg28 has described a retinitis characterized by white dots in the deeper layers and arranged in lines partly radiating from the' macula and partly crossing these so as to form a network, to- gether with small hemorrhages. Hutchinson considers a diffuse retinitis with hemorrhages suggestive of gout. Retinal hemorrhages with sclerosis in the form of opaque strife have been observed a few times in connection with marked oxaluria. 12. A septic retinitis, in the form of white plaques, which speedily develops into panophthalmitis, is a dan- gerous accident due to embolism from some pyaemic source in puerperal fever, extensive phlegmons, malignant endocarditis, or surgical pyaemia. Retinitis of traumatic origin, macular injury by in- tense solar illumination and by lightning, extension of inflammation of the optic nerve into the retina, and par- ticipation of the retina in choroiditis, complete the list of retinal inflammations the etiology of which is more or less understood. There remain comparatively rare in- stances of inflammatory retinal affections-diffuse re- tinitis with turbidity of the entire membrane, central transient retinitis causing a circumscribed scotoma, reti- nitis punctata albescens, retinitis proliferans with con- nective (?) tissue strife-the origin of which are not known. An inexperienced observer may mistake patches of opaque (myelated ) nerve-fibres which sometimes radiate from the papilla in normal eyes, for retinitis or neuro- retinitis, but the normal vessels and the absence of all dif- fuse turbidity, as well as the location of the opaque spots, should guard against this error. 13. The only etiological data we possess regarding the origin of pigmentary retinal degeneration ( retinitis pig- mentosa ) refer to consanguinity on the part of the parents of the victims in one-fourth to one-third of the cases, the occasional occurrence of the disease in several members of a family, as well as the comparative frequency of other degenerative conditions, like deaf-mutism, in such fam- ilies. XIII. Optic Nerve. 1. The vascularity of the optic nerve varies within such wide physiological limits that the diagnosis of either pap- illary congestion or, on the other hand, of anaemia, must be received with caution. An intensely congested optic disk means really neuritis, while pathological pallor has only been observed in the last stages of cholera, in grave anaemia, and in quinine amaurosis. 2. It is best to describe the inflammation of the in- tra-ocular end of the optic nerve as papillitis, since in- flammation of the trunk of the nerve back of the eyeball (retro-bulbar neuritis) is not necessarily visible ophthal- moscopically. Whenever the ophthalmoscope shows swelling and turbidity of the optic disk, indistinctness of its edges by reason of cloudiness, and dilatation of the veins (often with hemorrhages), we speak of papillitis, and if the cloudiness extends into the retina, of papillo- retinitis, while optic neuritis refers to inflammation of the nerve, no matter whether it extends down to the visi- ble end of the nerve or not. Papillitis of intra-ocular origin accompanies retinitis, especially the albuminuric form; the more violent forms of early syphilitic retinitis, also-sometimes-exudative choroiditis and acute forms of chorio-retinitis. Sympa- thetic ophthalmitis may also begin in the form of neuritis. 3. Of extra-ocular causes facial erysipelas may lead to optic neuritis. One-sided papillitis-which is other- wise much less frequent than the bilateral affection-may be due to orbital disease, phlegmon of the orbit, inflam- mation of the sheath of Tenon, caries (tubercular or syphilitic) of the orbital walls or-least of all, numer- ically-orbital tumors. Suppuration of the antrum of Highmore or of the frontal sinus has also been found as a rare cause of optic neuritis. 4. Papillitis of one or both eyes is sometimes, but not often, due to (late) syphilis of the optic nerve. More frequently, if syphilis is the cause, the neuritis is second- ary to its cerebral localization. Neuritis, usually bilateral and of grave danger to vision, although the visible papil- lary inflammation is generally very slight, has been ob- served after severe hemorrhages-especially hemorrhages from the stomach,-after measles, typhus and typhoid fever, mumps, and particularly often after influenza. In other instances rheumatism, suppression of menstruation and of bleeding from hemorrhoids, "taking cold," have been accused as causes of optic neuritis, but without definite proof. 5. Papillitis may also result from poisoning by bi- sulphide of carbon, or more frequently from lead- poisoning. In most instances, however, poisons affecting the optic nerve cause retrobulbar neuritis, which can but exceptionally be recognized ophthalmoscopically and which will hence be referred to under the head amau- rosis (XIV., 6). 300 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Eye Symptoms. Eye Symptoms. 6. Of chief interest to the cliuicist is the relation of optic neuritis to diseases of the brain. Von Graefe made a distinction originally between ordinary optic neuritis of cerebral origin, which he called the descending neuritis, and the condition termed by him choked disk (Stauungspapille). While in the former case the autopsy shows a uniform inflammation of the nerves from the chiasm to the eye, choked disk may exist with but little evidence (to the naked eye) of neuritis of the nerve- trunk, but with intense swelling and venous stasis of the intra-ocular end. Accordingly von Graefe assumed a creeping down of the inflammation along the nerve in the former case, while he attributed the choked disk to interference with the return of venous blood by in- creased intracranial pressure. He based this explana- tion on the fact that choked disk commonly accompanies conditions which raise the intracranial pressure like tumors. But it was soon shown that this mechanical view was untenable on account of the free anastomoses of the veins of the orbit with the facial vein. Subse- quently Schmidt, and, later on, Manz, tried to prove that the venous interference was an indirect one. due to dropsical exudation between the sheaths of the optic nerve, which transmitted the intracranial pressure to the central vein after it enters the optic nerve. That this in- tervaginal dilatation does exist in such cases has been shown by autopsies. But its significance has been over- thrown by Deutschman." His experiments showed that any degree of compression of the nerve by intravaginal fluid comparable to what exists in pathological cases, is in- sufficient to produce optic neuritis. Its real pathogenesis he seeks in the influence of germs or toxines carried down the intravaginal space from the brain by the cur- rent of fluid, and he therefore considers the papillitis as a transmitted infection. While the distinction between ordinary optic neuritis and choked disk can be main- tained ophthalmoscopically in extreme cases of either type, average experience shows that the two conditions really merge into each other. The cerebral disease which most commonly leads to papillitis is tumor of the brain. The association of the two conditions is so frequent that in doubtful cases the diagnosis of cerebral tumor is materially confirmed by the presence of optic neuritis. According to Reich30 neuritis (or the atrophy resulting from it later on) was found in 95.4 per cent, of eighty-eight cases of tumors examined during life and after death. In the analysis of ninety-six reported cases, Edmonds and Lawford31 found neuritis in eighty-six per cent, of all tumors of the cere- bellum, the cerebral ganglia, or the base of the brain, but only in forty-six per cent, of the tumors seated in the cerebral cortex. Hughlings Jackson, on the basis of a large personal experience, thinks that optic neuritis would ultimately set iy in every case of tumor were it not for the premature death of some patients. For sometimes the neuritis is a late accident. Occasionally it disappears without leaving any lesion, sometimes to relapse again. Oftener it changes into atrophy of the nerve. In spite of the intense swelling of the papilla vision is but little reduced in some patients. The affec- tion is almost invariably binocular. Inflammation of the optic nerve, but often with less intense papillary venous congestion than in the choked disk of brain tumors, occurs also in other cerebral affec- tions, but is not nearly so common as in tumors. It has been observed in instances of pachymeningitis, of meningitis, tubercular, syphilitic, and otherwise, but only very rarely in the cerebro-spinal form. It is not uncom- mon in abscess of the brain, especially abscesses of the temporal lobes from ear disease, and in such cases it is unilateral on the side of the abscess. It has also been seen in hydrocephalus internus and in thrombosis of the cavernous sinus. In cerebral embolism and softening and in apoplexy it is very uncommon, except when the effused blood gets in between the membranes at the base. In diffuse sclerosis, the noninflammatory forms of insanity, and degenerations in the brain, optic neuritis is a very ex- ceptional occurrence. A few times optic neuritis has been seen in connection with acute myelitis of the spinal cord. The disease has also been known to follow sun- stroke. 7. Atrophy of the optic nerve shows itself by white discoloration of the papilla, often with a greenish-blue or grayish tint, and by failure of sight. If of intra-ocular origin or secondary to optic neuritis the vessels of the atrophied optic nerve are generally contracted. But if the atrophy is due to other causes the vessels may retain their normal calibre. Atrophy may follow any papillitis which does not speedily cease. It may also result from intra-ocular dis- ease in which the optic disk was not primarily inflamed, such as embolism of the central artery, persistent forms of retinitis (retinal pigmentary degeneration), choroid- itis, and chorio-retinitis, and especially glaucoma. It may be the consequence of previous optic neuritis, due to any of the causes mentioned in the former para- graph, as facial erysipelas, lead-poisoning, orbital dis- ease, syphilis, and the various brain troubles engender- ing inflammation of the optic nerves. With but little intra-ocular manifestation an optic neuritis, involving principally the trunk behind the eye, may follow loss of blood, especially from the stomach, measles, typhus or typhoid fever, mumps and influenza and lead to atrophy. Retrobulbar neuritis due to tobacco and alcohol poisoning rarely leads to extensive atrophy, but the in- flammation of the nerve caused by diabetes may ter- minate in complete degeneration. 8. Atrophy may occur without previous neuritis by compression of the nerve from traumatic hemorrhages into the orbit or fracture of the walls of the optic canal, from exudation into the orbit or tumors of its walls, from irregular growth of the sphenoid bone (as in acromegaly) or exostoses on its upper surface, from sup- purative inflammation of the sphenoid sinus, from anom- alously situated or arterio-sclerotic vessels of the circle of Willis, constricting the nerve, or from aneurisms or tu- mors of any kind pressing upon it. If the compression occurs between the chiasm and the eye the atrophy becomes visible ophthalmoscopically in the course of weeks, while if the function of the optic tracts posterior to the chiasm be destroyed it will require many months or years before the atrophy descends to the intra-ocular end of the nerve. If the cause of the paralysis of the nerve is situated between the basal ganglia and the cortex of the occipital lobes, the atrophic changes may not reach the eye at all in adult life, although during in- fancy the degeneration pursues a more rapid course. The cerebral affections which may cause atrophy by compression of the region of the chiasm, are distention of the third ventricle by internal hydrocephalus and basilar meningitis (besides tumors of the bones of the base of the skull). Foci of softening and apoplectic effusion lead but rarely to atrophy by compression. Whenever the inducing cause is at the periphery of the brain, away from the chiasm, the affection is unilateral, but bilateral if the lesion is situated at or near the chiasm. 9. Atrophy not traceable to compression of the nerve is frequent in multiple sclerosis of the brain and in general paresis ; somewhat less common in other forms of mental disease dependent upon degenerative changes. In these instances it is always bilateral, but often unequally ad- vanced in the two eyes, and does not necessarily proceed to complete optic paralysis. Blindness from atrophy is an occasional incident in the course of polio-encephalitis inferior-or in the progressive sclerosis of the nuclei of the upper cranial nerves. 10. Atrophy of the optic nerve is often of spinal ori- gin. In locomotor ataxia optic atrophy has been counted in from twelve to twenty-six per cent, of all cases by different observers. It may be one of the earliest symp- toms. Its prognosis, if of spinal origin, is always bad, although a temporary standstill for some years is occa- sionally observed. It may complicate also-though less frequently-other spinal affections, such as myelitis of the lateral columns and injuries of the cervical cord. In Fried- reich's hereditary ataxia and similar forms of family afflictions (Sanger Brown) it has been noted as a frequent incident. Atrophy of spinal origin is always bilateral. 301 Eye Symptoms. Eye Symptoms. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. In a moderate proportion of cases of progressive optic atrophy no cerebral or spinal cause can be established, although many of the patients present distinct neuro- pathic tendency, revealed either by their own antece- dents or by the family history. The disturbance of sight in optic atrophy may consist mainly in failure of central vision or in narrowing of the visual field, or it may depend on both factors. It is not possible to determine the cerebral, spinal, or idiopathic origin of optic atrophy by visual tests alone, except in cases secondary to retrobulbar axial neuritis (see XIV., 6) or in affections of the chiasm (see XIV., 5). XIV. Amaurosis ; Amblyopia ; Hemianopsia. The present paragraph is to include all those instances of blindness and of impaired sight which are not due to intra-ocular disease, or to lesions visible ophthalmo- scopically, at least at the start. The causes are either affections of the optic nerves, diseases of the nervous system, or systemic morbid conditions. Amaurosis of cerebral origin may, in certain instances, be associated with optic neuritis, but this condition is but a complica- tion in such cases, and does not by itself account for the blindness. In default of objective signs, the loca- tion of the trouble must be determined by testing the vision in the centre and in the periphery of the retina, by measuring the visual field for white and colors, and by taking*into consideration the pupillary symp- toms and the condition of the ocular muscles, of course, with due reference to any nervous or systemic phe- nomena. 1. Congenital poor vision, but with perfect visual field and normal color-sense, is quite common in an eye more hypermetropic or more astigmatic than its fellow. Oc- casionally patients discover this stationary defect only late in life. To what an extent such an eye loses still further in sight by non-use, in case of strabismus, is an open question. 2. Sudden loss of sight in one eye may occur from com- pression of the optic nerve, by traumatic fracture of the orbital walls, by orbital hemorrhages and phlegmons. Gradual blindness can be due to slow compression by tumors and hypertrophic growth in the orbit, or of the sphenoid bone. In these cases the ophthalmoscope shows optic atrophy after the lapse of weeks. 3. One-sided transient blindness has been attributed in some instances to reflexes from carious teeth of the same side. The cases are, however, few in number and mostly not of convincing character. Other instances of so-called reflex amaurosis attributed to neuralgic affections of the fifth nerve or sensitive cicatrices on the face, are perhaps better substantiated, but are also rare. Ziem, Berger (and a few others) have reported unilateral amblyopia with restricted field of vision in suppuration of the maxillary or of the frontal sinus. 4. Unilateral so-called crossed amaurosis of cerebral ori- gin has been described by Charcot, in cases of apoplexy or embolism in the posterior part of the internal capsule of the other side of the brain, together with anaesthesia of half of the body (on the side opposite the lesion). But in these cases there was also concentric limitation of the visual field, and impaired color perception on the part of the other eye (on the side of the lesion). In other cases the blindness was not complete, but the impairment of sight ■was simply more intense in the opposite eye, but of the same character as in the less involved eye. No anatomi- cal explanation can at present be given of these seeming- ly paradox observations. Very similar to these visual troubles due to organic cerebral lesions are the eye symptoms in hysteria. The most characteristic form is unilateral amaurosis (gener- ally with normal pupillary reaction), or amblyopia with concentrically constricted visual field and color-blind- ness, or restricted color-fields. The area sensitive to blue is often smaller than the field for red (contrary to the normal state). The affected eye corresponds to the side of the hemianaesthesia, if present, or to the side of the ovarian tenderness. Often the other eye, too, has a (SUPPLEMENT.) constricted field with diminished color-sense, but good central vision. In the so-called traumatic neuroses, the hysterical or neurasthenic conditions following sudden injuries, sub- jective failure of sight is but rarely noticed, but very frequently the visual field of both eyes for white and colors is found concentrically narrowed on testing. It has been noticed in such instances that the retinal periph- ery is quickly fatigued, so that in successive perimetric tests the visual field contracts during the examina- tion. 5. Bilateral amblyopia is necessarily produced by all the causes mentioned in XIII., arts. 7 and 8, which lead to atrophy of the optic nerves, while at the very start it is sometimes impossible to recognize the atrophy ophthalmoscopically, at least with certainty. If in these cases the patient complains of one eye only, careful tests will still reveal a slight impairment of the sight, color- sense, or visual field of the other eye. In cases in wfliich both optic tracts back of the chiasm, or the posterior region of the chiasm itself, are injured by pressure of tumors or apoplectic effusions, or by hydrocephalic bulging of the floor of the third ventricle, the atrophy may not reach the intra-ocular end of the nerve until after the lapse of months. Yet there may be bilateral blindness or amblyopia. The seat of the cause is suggested in these instances by either symmetri- cal or homonymous sector-shaped restriction of the visual fields of both eyes (see explanation under the head of Hemianopsia). 6. Bilateral impairment of central vision with normal or very slightly constricted visual field may be due to retrobulbar neuritis. The diagnosis is based on the de- tection of a small oval central scotoma for colors, at first only relative for red and green, later on absolute for these colors and sometimes even for blue, with, how- ever, almost normal color-sense in the periphery of the field. The lesion consists of neuritis limited to that bun- dle of fibres of the optic nerve which supplies the macu- lar region, and it extends throughout both nerves from the eyes to the chiasm (axial neuritis). If not checked this inflammation leads ultimately to barely visible atrophy of the temporal half of the optic disk. Some- times, but rarely, there is a slight diffuse cloudiness and congestion of the papilla from the start; occasionally there are small retinal hemorrhages. The most common causes of retrobulbar neuritis are chronic alcoholism, tobacco-poisoning, or the joint in- fluence of both agents, or diabetes mellitus. Almost the same form of optic neuritis may occur also in the course of multiple sclerosis of the brain, sometimes, however, with more diffuse involvement of the optic nerve. Lead- poisoning, too, may lead to the same form of retrobulbar neuritis, although more commonly the lead neuritis in- volves the entire area of the optic nerve. There is, be- sides, a so-called idiopathic retrobulbar neuritis, the cause of which cannot always be detected by clinical analy- sis, though menstrual suppression and exposure to cold are sometimes accused in a vague manner. 7. Sudden blindness, complete or nearly so, of both eyes is (rarely) produced by a diffuse meningitis of the cortex, by cortical oedema, or increased intracranial pressure from tumors. Cortical lesions are the most probable cause in transient blindness after cerebro-spinal meningitis with retained pupillary reaction. Similar ob- servations have been made after scarlet fever, variola, measles, and other infective fevers, sometimes with re- covery, sometimes ending in permanent blindness. The nature of the lesion is not known. A cortical origin, too, we must assume in the transient blindness of both eyes during uraemia, sometimes with- out loss of pupillary reaction. The cause of the uraemia is kidney disease, generally that which occurs in preg- nancy, but also other varieties, as, e.g., that following scarlatina. Transient blindness in periodic spells has been observed as a malarial manifestation. Lead-poison- ing has also been known to cause a temporary blindness comparable to uraemic amaurosis. A similar blindness lasting several days has a few times been observed dur- 302 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Eye Symptoms. Eye Symptoms. ing gastric disturbances, disappearing within some hours after the action of an emetic. There are on record a small number of cases of abso- lute blindness without intra-ocular cause, observed upon the cessation of a persistent blepharospasm, but followed by spontaneous recovery in every instance. 8. Complete, though transient blindness, or, in less se- vere instances, marked reduction of vision, has been ob- served after large doses of quinine. There was marked pallor of the optic disk and narrowness of the retinal vessels. When sufficient sight had returned to measure the visual field, it was found enormously restricted, and in some of the instances it did not regain its full extent. A similar affection has been known to follow an over- dose of salicylate of sodium. 9. A few instances have been reported of sudden inter- ference with sight, not due to any actual diminution of visual acuity, but to inability to interpret the visual per- ceptions, although the mind was otherwise not disturbed (Wilbrand32). The condition has been termed psychic blindness and referred to lesions of the occipital cortex. The same condition has been noticed rather often in gen- eral paresis of the insane, but on account of the mental failure of these patients it is more easily overlooked. 10. Hemianopsia, or loss of one-half of the visual field of both eyes can only be produced by a lesion of the op- tic paths situated somewhere between the chiasm and the occipital cortex. It is either homonymous, involv- ing the internal half of the field of one eye and the ex- ternal half of the other, or it consists in loss of either the temporal halves or the nasal halves of the field of both eyes. » Homonymous hemianopsia is often described wrongly by the patient as failure of the eye on the side of the blind half of the field, and in such instances the nature of the disturbance is only recognized on perimetric measurement. The central vision is generally perfect. The onset is nearly always sudden. Since either optic tract supplies fibres to the external half of the retina of the same side, and to the nasal half of the retina of the opposite eye, the loss of one-half of the field of vision can only be due to a lesion of the optic fibres back of the chiasm and on the opposite side of the brain (see article ''Visual Centres," by the writer, in Vol. VIL of this work). If the nerve-path involved be the optic tract in its continuity or at its central termination in the external geniculate body, the pulvinar of the thalamus opticus, or the anterior corpus quadrigeminum, the vertical line separating the blind half from the intact part of the vis- ual field runs exactly through the point of fixation (fovea centralis). Wernike has pointed out that in these cases the pupils will respond only if light is thrown into either eye from the perceiving side, while they remain immo- bile when the light is situated on the blind side (Wer- nike's hemiopic pupillary reaction). The lesion produc- ing this hemianopsia may be a hemorrhage or hemor- rhagic cyst, a focus of softening or a tumor, on the opposite side of the brain, in any locality where it can involve or compress the optic tract or its central termi- nation. If the lesion is situated in the occipital lobe, involving either the cortex or the white fibres which connect the cortex with the termination of the optic tract, the hemi- anopsia does not always extend quite up to the point of fixation, but may leave an area of a few degrees in width intact on the blind side of the fovea centralis. This was illustrated in a unique case reported by Foerster,33 in which left hemianopsia of cortical origin supervened in a man who had previously a right hemianopsia, likewise due to cortical lesion, and who still retained a central area of about three degrees with good sight. Hemianopsia of cortical (or subcortical) origin is further distinguished by the pupillary reaction when the light is on the blind side, as well as on the intact side of the field, since the lesion does not involve the reflex circuit of the pupillary fibres. The lesions found in the occipital cor- tex in a number of reported autopsies of cases of hemi- anopsia were generally foci of softening, less often effu- sions of blood or circumscribed tumors, involving the (SUPPLEMENT.) cuneus or its immediate neighborhood. As the cortical area representing the visual centre is an extensive one, it may be only partially destroyed by disease, and hence the hemianopsia is not always complete, viz., it does not always mean loss of the total half of each visual field, but may be limited sometimes to corresponding sections of each half of the two fields. Cases have also been re- ported-presumably of cortical origin-in which there was only color-blindness, but not impaired sight for white in the defective part of the field. 11. Hemianopsia involving only the nasal or the tem- poral halves of both retinae can be caused exclusively by lesions injuring the fibres in the chiasm itself-tumors of the pineal gland or the sella turcica, localized perios- titis, and circumscribed tubercular or syphilitic menin- gitis. 12. A transient form of homonymous hemianopsia has been termed amaurosis fugax, scotoma scintillans, or ophthalmic migraine. It is popularly known as blind headache. In the most typical cases a peripheral flicker- ing, setting in suddenly, is followed by more or less com- plete blindness of one-half the visual field, lasting from some minutes up to (exceptionally) over an hour, while the attack is terminated by severe headache. In other instances there may be general amblyopia instead of hemianopsia, or the visual disturbance may be so slight that the patient lays the most stress on the headache. While such spells have been observed in some patients with cerebral tumors, and often, too, in general paresis of the insane, they are, on the other hand, a very com- mon complaint, and generally of no grave significance. They are but a form of migraine, and like the latter may be of reflex origin, sometimes from nasal anomalies (Hack, and personal observations). In the writer's ex- perience these attacks of fugitive scotoma have also been averted by removing the eye strain of astigmatism, and by relieving chronic intestinal catarrh. Whether ophthal- mic migraine is occasionally the equivalent of epileptic attacks is an undecided question. XV. Diplopia. 1. Double sight occurs whenever the tw'o eyes are not directed toward one and the same point-on account of paralysis or an ocular muscle or mechanical interference with the movements of the eyeball. In ordinary con- comitant strabismus diplopia is absent, by reason of the mental suppression of the images in the deviating eye, but the double sight can be made manifest by holding a colored glass in front of one of the eyes, or by shifting the retinal images from their usual position by means of prisms. 2. In rare instances two or even more images of the same object are seen by one eye on closure of" its fellow' (monocular diplopia or polyopia). This may be due to an optic defect-facets of the cornea or lenticular irregu- larity from incipient cataract-whereby two separate retinal images are formed. Such diplopia is stopped by looking through a pinhole in a screen. But monocular diplopia-not of optic origin-has also been observed in pure hysteria, and in the hysteria complicating organic brain disease. XVI. External Muscles of the Eye (and Levator Muscle of the Lid). Strabismus, or the deviation of an eye from the posi- tion necessary for single binocular vision, is either con- comitant or paralytic. The significance of these two forms is entirely different. The former is due to abnor- mal tension of one of the recti muscles, while the latter is caused by paralysis of one or more ocular muscles. 1. In concomitant strabismus the deviation of the eye is practically the same toward "whichever direction the patient looks, and the deviation remains the same which- ever eye the patient uses for fixation (with rare excep- tions). The patient may either depend on one eye exclu- sively (usually the better one) for vision, or he may use alternately either eye. The strabismus is more commonly 303 Eye Symptoms. Fei Bovis. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) constant; sometimes, however, it is periodic. The causes of concomitant strabismus are usually intra-ocular. As a rule (but not without exceptions) convergent strabismus is associated with hypermetropia and divergent squint with myopia. Frequently, but not necessarily, the devi- ating eye is the weaker one. An eye whose vision is en- feebled by corneal opacity, or intra-ocular disease, is apt to turn outward. Convergent strabismus of hyper- metropic eyes sometimes comes on suddenly during childhood, especially after febrile diseases. In such cases the patients complain for a time of double sight without paralysis of any ocular muscle. As a rule, di- plopia is not observed in concomitant strabismus. 2. Paralytic strabismus always causes an annoying diplopia. The paralytic deviation of the eye and the resulting double sight increase quantitatively when the eyes are turned in the direction of the weakened muscle, and diminish or disappear when the eyes are turned in the opposite direction. In paralytic strabismus the unaf- fected eye is used for fixation naturally,* and if it be covered and the affected eye be directed toward a given point, the so-called secondary deviation of the normal eye is greater than that of the affected eye. The trouble may vary from slight paresis to absolute paralysis of one or more muscles. 3. Paralytic squint may be simulated by mechanical hinderances to the movements of the eyes, such as tumors in the orbit. The elongation of the eyeball in high myopia and its protrusion in exophthalmic goitre may interfere with the converging power mechanically, but this condition is not due to a paralysis. The only (and rare) cause known to damage the eye muscles di- rectly is trichinosis. 4. The lesions causing paralysis of the ocular muscles may involve the motor nerves in their course through the orbit, in their intra-cranial portion, at their nuclei in the basal gray substance from the third to the fourth ventri- cle, or possibly in the paths connecting the nuclei with the cerebral cortex. The seat of the lesion can be diag- nosticated only by the careful consideration of all the symptoms presented by the case, and not always with certainty. It must be remembered that while the fourth and the sixth cranial nerves supply only one muscle each (viz., the superior oblique and the external rectus), the motor oculi innervates the superior, inferior, and in- ternal recti and the inferior oblique muscle as well as the levator of the lid and the sphincter of the iris, and that all these fibres of the third nerve are united in the trunk but separated at the central termination as well as at the peripheral distribution. Both anatomical reasoning and clinical observations show that isolated paralysis of either the pupil, the lid, or the three recti together (viz., supe- rior, inferior, and internal) can only be of central origin, but that a simultaneous involvement of all the muscles controlled by the motor oculi is more likely to be due to a lesion of the trunk of the nerve. It has, however, been learned that isolated paralysis of the internal rectus may be of peripheral origin. 5. Many of the cases of paralysis of the internus or externus muscles cannot be referred to any constitutional cause, and are usually described as rheumatic, but with- out any proof of their rheumatic origin. The writer34 has ascertained that many such paralyses are preceded by severe acute coryza, and are evidently due to extension of infection from the nose. Orbital causes of paralysis are represented by traumatism, fracture of the walls of the orbit or of the rim of the sphenoid fissure, phlegmon, and tumors. 6. The intra-cranial part of the motor nerves may be compressed by hemorrhages, meningeal exudations, tumors of the brain or skull, or thrombosis of the cavernous si- nus, and in rare instances by aneurismal basilar arteries. Quite common are paralyses, usually multiple, from lo- calized syphilitic basilar meningitis. The nerves are also implicated often in fractures at the base of the skull. 7. The nuclei of the motor nerves of the eye may be injured to a greater or less extent by hemorrhages, soften- ing, or tumors, especially syphilitic or tubercular, involv- ing the region between the basal ganglia and the medulla oblongata. There occurs, besides, a progressive oph- thalmoplegia externa, due to disease limited to the nu- clear gray substance, sometimes of syphilitic origin, in other cases due to a non-syphilitic polio-encephalitis infe- rior. Disease of the nuclei may also occur before birth, as isolated or multiple paralyses of the lid elevator and the recti muscles are not rarely congenital. Clinical evidence and scant autopsies have shown a nuclear origin as well in the isolated and often transitory paralyses which are often observed in syphilis, in tabes (where they may be one of the earlier symptoms), in multiple sclerosis, in diabetes, in pupura heemorrhagica, in poisoning by lead, tobacco, carbonic oxide, and ptomaines of spoiled meat. The same may be said of the relatively infrequent paralyses following diphtheria (while paraly- sis of the fibres of the third nerve supplying the ciliary muscle is so common from this cause). Transitory or even permanent palsies of ocular muscles have been known to follow the acute exanthemata, various infec- tious fevers, and especially influenza. Within some years comparatively many cases have been reported of periodic paralysis of the motor oculi nerve, sometimes complete, sometimes only limited to some of its branches. The spells are preceded by headache, last some days or weeks, and then cease entirely, but return after irregular intervals. The cause is probably central. 8. Of lesions above the nuclei of the motor nerves but little is known in relation to ocular paralysis. Isolated ptosis-paralysis of the levator muscle of the lid-has been observed in disease of the posterior region of the parietal cortex of the opposite side. It is probable that the transitory and often variable pareses observed occa- sionally in hysteria are due to cortical influences. A few instances of paralysis of associated movements of both eyes (upward, downward, or lateral), but without para- lytic strabismus, have been observed (O. Bull),35 which on clinical evidence can only be referred to disease of the hemispheres of the brain. 9. A not uncommon symptom of localized cerebral disease, especially apoplexy or softening, is conjugate deviation of both eyes to one side, attributable to spasm rather than to paralysis of the internal rectus of one eye and the external rectus of the other. It may be due to either irritative or destructive lesions of the hemispheres or of the basal region, especially the pons. Landouzy states that turning of the eyes toward the paralyzed side indicates a destructive lesion in the neighborhood of the pons, while hemispherical injury causes the eyes to turn away from the palsied side, but that in case of contract- ures the deviation toward the convulsed limbs means hemispherical, and away from the side of the spasm, pontine irritation. 10. Nystagmus-rhythmic oscillation of the eyes-is generally congenital, or acquired during early childhood in connection with any intra-ocular disease or defect causing imperfect sight. But if it originates after early infancy its significance is entirely different. The ac- quired nystagmus is a comparatively frequent affection in coal-miners, brought on by the constrained position and the inevitable fatiguing turning of the eyes to one side, perhaps also by the insufficient illumination. If acquired without this provocation it is symptomatic of either malformation of the skull and brain or of multiple sclerosis, of hemorrhagic or embolic foci in the thalamus opticus, the fourth ventricle, the restiform body, or the cerebellum, of infantile encephalitis, or of Friedreich's hereditary form of ataxia. XVII. Orbit. 1. Hemorrhage into the orbital cavity is quite rare from any but traumatic causes. In the latter case, if the force has not been directed against the orbit itself, the hemorrhage denotes fracture of the base of the skull. Severe coughing fits, scurvy, and vascular degeneration have caused effusion of blood in rare instances. Gas- eous infiltration of the orbit-emphysema-can only hap- * Except when its sight is much less than that of the other eye. 304 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Fye Symptoms. Fei Bovis. pen from violent expiratory efforts after a fracture of the wall has established communication between the orbital and nasal cavities. 2. Orbital affections may be simulated by empyema of the frontal or of the ethmoid sinus. But these suppura- tions can also extend into the orbital cavity, causing phlegmon or abscess. Other causes of orbital phlegmon may be facial erysipelas or furuncles, orbital traumatism and infection, thrombosis of the cavernous sinus or ex- tension of a suppurative meningitis. Phlegmons of pyamic origin have been observed, in surgical pyaemia and in severe infectious fevers. Inflammation of the sheath of Tenon occurs sometimes after severe coryza, and has been seen often secondary to influenza. Caries of the orbital wall may be due to syphilis, tuberculosis, or infection by pus microbes. 3. Exophthalmus, or protrusion of the eyeball, is caused by any tumor or tumefaction in the orbital cavity and is somewhat simulated by the prominence of highly my- opic eyes. Exophthalmus forms a prominent symptom of Graves' (or Basedow's) disease-exophthalmic goitre. There are, however, rare cases of this disease without exophthalmus. Enophthalmus-the receding of the eyeball into the orbit-is a common appearance in all wasting diseases. Bibliography.-The numerous observations upon which this review is based are scattered throughout ophthalmological and neurological literature, and are summed more or less completely in the larger text-books on the eye and on the nervous system. Many details will be found in the different ophthalmic contributions to this Reference Handbook, especially the article by Dr. Moore on " Medical Ophthalmoscopy," in Vol. V. Very complete accounts of the connection of the nervous sys- tem, with optic nerve and retina can, be found in Leber's classical treatise in vol. v. of Graefe and Saeinisch's Ilandbuch der ges. Angenheilkunde, 1877, and in the arti- cles on the retina (1887) and optic nerve (1888) by De Wecker, and on amblyopia by Nuel (1887) in De Wecker and Landolt's " Traite complete d'Ophthal- mologie." Very full also is the part on muscular anoma- lies by Landolt and Eperon in the same wrork. Reference should also be made to the "Medical Ophthalmoscopy" by Gowers, 1879 (and second edition in 1881). Good re- sumes of the same subjects are given by Mauthner, "Ge- hiru und Auge," 1881, and "Die Nuclearlaehmungen der Augenmuskeln,'' 1885. The relations between the uterus and the eyes are summed up by Cohn in "Uterus und Auge," 1890. On the connection between the nose and the visual organ full references can be found in Berger, "Rapports entre les Maladies des Yeux et celles du Nez et des Cavites voisines,'' 1892, and in II. Gradle, " The Etiological Relations of Nasal Diseases to Affections of the Eyes," in "Transactions of the Ophth. Section of the Am. Med. Assn., 1892," (and Journal of the Am. Med. Assn., September 10, 1892). The importance of syphilis is well portrayed in Alexander's "Syphilis und Auge," 1889. A complete resume of eye symptoms in general pa- thology was first brought out by Foerster, in Graefe and Saemisch's Handbuch der ges. Augenheilknnde, vol. vii., 1877. In 1885 Jacobson wrote his short but thorough monograph, " Beziehungen der Verauderungen und Krankheiten des Sehorgans zu Allgemeinleiden und Or- ganerkrankungen," in which-as in the present article- the relations are classified from the ophthalmic stand- point, while tabulation from the medical point of view is again the plan in Berger's large compilatory work, "Les Maladies des Yeux dans leur Rapports avec la Pa- thologic generale," 1892. The latest review of the sub- ject is the volume by Knies, "Die Beziehungen des Sehor- gans und seiner Erkrankungen zu den iibrigen Krank- heiten des Korpers," 1892. H. Gradle. (SUPPLEMENT 7 Pelteeon : Berl. klin. Wochenschrift. 1891, No. 32. 8 Widtnark : Transactions of the Tenth International Medical Con- gress, vol. iv. 9 Arch, of Ophthalmr 1., vol. xv., p. 441. 10 See Transactions of the Ophthalmic Section of the Tenth Interna- tional Medical Congress of Berlin, vol. iv., 1890. 11 Centralblatt f. prakt. Augenheilknnde, 1888, p. 10.3. 12 Archiv f. Psychiatric, Bd. ii., p. 289, u. Bd. iii., p. 169. 13 Centralblatt f. prakt. AugenheilKunde, 1890. p. 489. 14 Transactions of the Am. Ophth. Society, 1889. 15 Hirschberg: Centralblatt f. prakt. Angenheilkunde, 1886, p. 97. 16 Gradle : Annals of Ophthalmology, January. 1893. 17 C. R. de la Societe de Biologie. April 9, 1886. 18 Archiv. f. Ophthalmologie, vol. xiv., p. 107. 19Handbuch d. ges. Augenheilknnde von Graefe und Saemisch, Bd. vii., p. 89. 30 Lancet, 1872, ii., p. 708. 21 Transactions of the Ophthalmological Society of the United King- dom, British Medical Journal, February 9, 1889. 22 Syphilis und Auge. Wiesbaden. 1889. 23 Royal London Ophthalmic Hospital Reports, January, 1889. 24 Zeitschrift f. klin. Medicin, vol. xvi., H. 5 and 6, and Fortschritte d. Medizin, 1887. No. 24. 25 ZurAetiol.d. Embolied. Art. Cent. Retinae, Inaugural Diss., Zurich, 1892. 28 Transactions of the Ophth. Society of the United Kingdom, January 26, 1888. 27 Centralblatt f. prakt. Augenheilknnde, 1888, p. 369. 28 Ibid., 1882, p. 3<3. 29 Ueber Neuritis optica, besonders die sogenannte Stauungspapille, etc. Jena, 1887. 30Zehender's klin. Monatsblatter f. Aug., Hd. xii., p. 274. 31 Ophthalmic Review, May, 1887. 32 Die Seelenblindheit, etc. Wiesbaden, 1887. 33 Archiv f. Ophthalmologie, Bd. 36. i., p. 94. (Another case by Schweigger, Archives of Ophth., 1891, vol. xx., p. 83.) 34 Journal of the American Med. Assn., September 10, 1892. 35 Archives of Ophthal., 1891, vol. xxi., p. 342. FALMOUTH. A popular sea-side resort in Cornwall, England. Falmouth, although nine hours by rail from London, is a fashionable sea-side resort, which has lately become quite prominent. The harbor is one of the finest in England, and the sandy beach is very attractive. The climate, though humid, is mild and agreeable. Bathing is the chief attraction. Invalids of various kinds live there in winter and spring, owing to the climatic and sanitary advantages of the place. Edmund C. Wendt. FEL BOVIS. The action of ox-gall in assisting the absorption of fats and oils, and its aid in maintaining intestinal antisepsis, has suggested its use as a proper means of treating typhoid fever. Dr. Adolph Zea re- ports the result of ten cases in his own wards, and forty- eight cases treated by medical friends, as very gratifying. His method of conducting the case is as follows : If seen early, a dose of calomel is given to relieve the digestive tract of its contents ; alcohol in the form of whiskey is given at first as a stimulant, and, if additional stimulation is required, strychnine, caffeine, ammonia, camphor, or small doses of quinine ; dilute muriatic acid in large quan- tities of water as a beverage, and fel bovis purificatum sic- cum, in doses of two to four grains, three to six times a day in pill form or capsule. The diet consists of fluids-milk, gruel, beef-tea-in small quantities frequently given. The milk should always be boiled, but may be given hot or cold according to the wish of the patient. Prepara- tions of beef extracts and juices may also be given. The benefit of this treatment is shown in a reduction of the temperature after the drug has been given for a few days, and a freedom from all distressing abdominal symptoms and complications. Convalescence is also thought to be more rapid than under any other line of treatment. It is urged that if bile is essential in health, it is still more so in such a condition as enteric fever, when the functions of all the organs are in abeyance and the nor- mal secretion of bile, so much required, is lacking. It is uncertain how it acts, whether by passing direct from the stomach into the intestines, or whether it is first absorbed and then secreted as human bile. If the article is pure and not altered by age it is perfectly unirritating and may be given without the fear of its causing any unfavorable results. Whenever pain, vomiting, or any symptoms of gastric irritation arise, it is due to the presence of proteid matter and other impurities in the drug, which have im- parted the poisonous properties. W. H. Porter contributes, in Merck's Bulletin, July, 1 Centralblatt f. prakt. Augenheilknnde. 1891, pp. 14 and 47. 2 Deutsche med. Wochenschrift, 1891, No. 2. 3Centralbl. f. prakt. Augenheilknnde, 1891, p. 180. 4 Beitrage zur Angenheilkunde. Heft, ii., p. 109. s Fuchs : Arch. f. Ophth., Bd. 36. i.. p. 234. and confirmed by personal observation by the author. See article on Disease of the Lids, in Hare's System of Therapeutics, vol. iii.. p. 1H88. 6 See Noyes, Diseases of the Eye, 1890, p. 260. 305 Fei Bovis. Fever. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. 1890, an article on the properties of ox-gall. He has used it in great quantities for over ten years, giving as much as twenty-five or thirty pounds during a year. He insists upon the necessity of procuring good preparations, both free from impurities and not spoiled by exposure to the atmosphere. He recommends that only the purified inspissated bile should be used. The physiological action of ox-bile is summed up by him as follows : 1. It acts on the fats and promotes their absorption by the lacteals. In all forms of milk diet he thinks that two grains of the purified gall in capsules should be given before the diet is commenced in the morning, and repeated during the day according to the quantity of milk ingested. 2. It contains a diastatic fer- ment and has an important action in the conversion of starch into glucose. 3. It promotes a normal peristalsis of the intestine which favors absorption and prevents con- stipation. 4. The bile-acids stimulate the minute muscles of the villi, the contractions of which force the contents of the lymph-sacs onward and favor absorption. 5. The presence of the bile stimulates the activity of the epi- thelium and promotes a secretion of fluid from the folli- cles. 6. It prevents putrefactive changes and may be looked upon as nature's chief internal antiseptic. 7. It aids the final solution of albuminoids and their conver- sion into the diffusible peptones. Beaumont Small. FELIXSTOW. A rising spa on the Suffolk coast, England. Location.-Felixstow Spa is about twelve miles from Ipswich, and two and a half hours from London. Having a southerly aspect, comparatively dry air, a bracing cli- mate, a fine beach, and a chalybeate spring, it is growing in popular and professional favor. In The Lancet of November 12, 1892, Dr. Macnaughton Jones gives the following particulars of the place : "Facing the German Ocean, between Harwich on the south and Bawdsey at the mouth of the Deben River on the north, Felixstow beach occupies an amphitheatre which has at one point of the crescent Landguard Fort, commanding the entrance to Harwich, and at the other a picturesque villa perched just above the cliffs of red crag and London clay that bound this part of the coast and over which there is a delightful walk to Felixstow ferry. The famous golf grounds and the well-known golfing club-the links of which are splendidly placed on the side of the Deben river, close to the sea, about two miles from the eastern side of the town-attract many visitors. The capital bathing beach and the safe sands render Fe- lixstow a typical place for children, and each year it is growing more in popular favor as a children's holiday resort. Dr. Taylor, having tested personally and with others the medicinal properties of the spa, was induced to try its aeration by artificial means, hoping thus to get rid of the smell and unpleasant taste due to the decom- position of the pyrites which is found in the London clay of the soil. In this he has been most successful. The taste reminds one of the Weinbrunnen spring at Schwalbach-sparkling and mildly chalybeate." Analysis.-According to Dr. Frankland, one hundred thousand parts of the water yield the following ingredi- ents : Parts. Total solid residue dried at 130° C 85.30 Lime as carbonate 11.76 Magnesia as carbonate .. 2.16 Total magnesia as carbonate 5.78 Soda 22.25 Potash 1.21 Chlorine 30 44 Sulphuric anhydride 3.40 Silica 1.51 Alumina and peroxide of iron 0.11 Organic carbon 0.063 Organic nitrogen 0.019 Ammonia ... 0.070 Nitrogen as nitrates 0.0 Phosphoric acid 0.0 These constituents are probably combined in the water in the following manner : (SUPPLEMENT.) Parts. Carbonate of lime 21.00 Carbonate of magnesia 4.54 Sulphate of lime 4.01 Sulphate of magnesia 1.52 Chloride of magnesium 7.36 Chloride of sodium 39.60 Chloride of potassium 1.92 Silicate of sodium 3.07 Alumina and peroxide of iron 0.11 Indications.-According to Dr. Jones, the consti- tution of such a water would justify the belief that it must prove of use in cases of atonic dyspepsia, and as a mild purgative, from the sulphate and chloride of mag- nesia which it contains ; both used internally and as a bath such a spa should prove of efficacy in gouty rheu- matism and muscular neuralgias. A spring which can yield an unlimited supply within a few yards of the beach of one of the most salubrious of English sea-coast resorts, in a neighborhood with a singularly dry climate and a soil that quickly absorbs moisture, free from moist exhala- tions, and that by its situation is protected from the se- verity of the east winds, is well worth developing. The drinking-water of Felixstow is singularly pure, being drawn from an artesian well which is sunk in the chalk. Accommodation.-There are plenty of good apart- ments, charmingly situated villas, and an excellent hotel, which is beautifully situated and within a few hundred yards of the spa. There are many pleasant drives in the vicinity (Jones). There is a " Spa House," resembling somewhat a German Kursaal. There is also a large " Convalescent Home." Edmund C. Wendt. FEVER. Recent investigations have somewhat modi- fied our views of fever, particularly as regards its dan- gers. They have taught us, among other things, not to base the prognosis of a disease upon the height of the fever that is present, to the neglect or exclusion of other symptoms. The term fever is here limited in its signifi- cation to elevation of temperature, although it is still frequently employed to designate a group of symptoms of which elevated temperature is one of the most promi- nent and one of the most important. Elevation of temperature and increased heat-produc- tion are not synonymous terms, neither is the one a measure of the other. The temperature curve, as de- scribed by the record of thermometric readings, serves but to denote the balance between opposing tendencies, of which heat-production and heat-dissipation are the most important, but possibly not the only factors. Macalister has aptly said, " The constancy of the temperature of the body in health, under widely varying internal and exter- nal conditions, is a fact so familiar that we have ceased to wonder at it; yet it rests upon a perpetual balance of op- posing tendencies which is as mysterious and as beautiful as anything in our frames." And the same may be said of the temperature in fever, except that the conditions are abnormal. No one, perhaps, has given us a more lucid explanation of the nature of fever than the author re- ferred to in his Gulstonian Lectures of 1887, which have done much to mould the thought of succeeding years. Macalister 1 considers the fever mechanism under three heads, namely, first, a thermogenic, or heat-producing mechanism ; second, a thermolytic, or heat-dissipating mechanism ; and third, a thermotaxic mechanism, whose office is to exert a controlling or equalizing influence upon the mechanisms for the production and dissipation of heat. Our definite knowledge of these three mechan- isms is by no means equal, but like that of most physio- logical phenomena, grows less as we ascend farther from the lower animal kingdom. Our knowledge therefore of thermolysis is comparatively full, for this mechanism is found even in the cold-blooded animals. We know less of thermogenesis, and have only recently learned any- thing of its connection with the nervous system ; while w'e have little more than inferential knowledge of ther- motaxis, which is believed to reach full development only in the mature human being. Thermolysis.-Thermolysis, or the mechanism of heat-dissipation, is too well understood to justify extend- 306 REFERENCE HANDBOOK OF THE .MEDICAL SCIENCES. (SUPPLEMENT.) Fei Bovis, Fever. ed description in this place. It acts.chiefly through the blood-vessels and sweat-glands of the skin. It is under the supervision of the vaso-motor centres of the medulla and spinal cord. These centres are perhaps of two kinds, vaso-constrictor and vaso-dilator in character. A certain part of heat-dissipation, amounting, perhaps, to twenty per cent, of the total heat-loss, is accomplished through the respiratory organs, and these are also under the control of a centre in the medulla oblongata, with, it is believed, a motor and inhibitory action. It has fur- ther been determined that these centres governing ther- molysis are susceptible to elevation of temperature in such a manner that the result is an increase of the dis- charge of heat from the body. This mechanism is be- lieved to be a common property of the animal kingdom, being found well developed in the cold-blooded animals as well as in the warm. Thermogenesis.-The muscles are the seat of heat- production, the " thermogenic tissue par excellence." They produce four-fifths of the body-heat in health, and perhaps a larger ratio of it in pyrexia. The remaining fraction is supplied by the secreting glands and the ali- mentary canal during digestion. As secretion and diges- tion are at a low ebb during fever, this fraction becomes less, and the muscles remain almost the sole producers of heat. Modern investigations have but confirmed the old doctrine that the formation of heat is materially in- creased in fever, that the process of heat-formation in the muscles is chemical in nature, and for the most part a process of oxidation (combustion). Oxygen is ab- sorbed and carbonic acid is discharged. The absorption of oxygen and the discharge of carbonic acid do not always, however, bear a constant relation to each other. A measure of the one cannot be used for the estimation of the other in a given case. The more recent investiga- tions of Finkler and others have yielded results differing but little from those obtained in 1877 by Colasanti. The latter observer found the average increase in the amount of oxygen absorbed in fever to be 18 per cent., and the increase in the excretion of carbonic acid 24 per cent. Finkler found, under circumstances fairly similar to those of Colasanti, that the increase of oxygen absorp- tion was 13.8 per cent., and of carbonic acid discharge 15.3 per cent. He found, further, that the increased ab- sorption of oxygen kept pace with the stage of the fever ; that it increased as the fever rose, remained stationary in the fastigium, and declined with defervescence. The highest percentage he found was 36.6 per cent, of oxygen increase, and 37.6 of carbonic acid lost. It is admitted by all investigators, however, that we have no means of determining with absolute precision the amount of oxy- gen which is absorbed in fever. This fact is largely accounted for by the uncertainty which must exist as to the respiratory quotient, or the ratio of oxygen that is used in the production of carbonic acid in respiration. It is probable, too, that, just as in health, a certain part of the oxygen that is absorbed in fever is used in the production of other combinations than carbonic acid, particularly in the production of water. But the respira- tory quotient is admitted to be lower in fever than in health, since in fever only fats and proteids are oxidized. Colasanti2 and Lilienfeld,3 while admitting this fact, as- sert that the respiratory quotient in fever does not mate- rially differ from that of the same animal in health, un- der the conditions of nutrition which are present in fever. Finkler4 thinks the reduction of the respiratory quotient more rapid than occurs in hunger, owing to the greater rapidity of oxidation that takes place. All agree, however, that the oxidation-products in fever are the same as those of health, and that additional products, if formed, are produced in very small amounts. Accord- ing to Regnault and Reiset,5 a fourth to a third of the absorbed oxygen, in hunger, is available for combination with hydrogen to form water. If. as is claimed by Cola- santi and Lilienfeld, the same ratio exists in fever, heat- production ought to be proportionate to the amount of oxygen absorbed. But if, as Regnard6 asserts, the res- piratory quotient is always very markedly reduced in fever, and a larger amount of oxygen is available than in health for the oxidation of hydrogen, the increment of heat-production should be still greater ; for a greater amount of heat is produced by the same amount of oxy- gen, when employed for the oxidation of hydrogen, than when it combines with carbon. And another source of variation lies in the fact that the same quantities of hy- drogen and carbon, in their oxidation, yield varying amounts of heat, according to the chemical compounds in which they are contained, and we cannot say positively that the compounds oxidized are the same in fever as in health under like conditions of nutrition (Welch).1 Ord 8 has given us yet another, and a very ingenious, hypothesis in reference to a source of at least a part of the fever-heat. He suggests that chemical processes occur in the body by winch, in health, heat-energy is stored up or rendered latent, as in the up-building of tis- sues. Since, therefore, tissue-formation is in abeyance during pyrexia, he argues that the heat of the body may be increased not only by processes of disintegration, but as well by the persistence, in the form of heat, of energy which, under normal conditions, would have taken an- other form. But, as Welch remarks, the amount of en- ergy appropriated in the form of heat by these construc- tive processes bears only a very small ratio to the total heat-energy set free by heat-producing processes, so that their cessation would not bring a very large increment to the heat of the body. Welch,9 while he does not attach much importance to figures purporting to express the actual heat-production in fever, believes that we are jus- tified in drawing one conclusion from the results of di- rect and indirect calorimetric observations: " This is, that while an individual in fever produces more heat than he would in health under similar conditions as to food and muscular movements, he does not produce nec- essarily in fever more heat than lie would in health on a full diet. And it is certain that he usually produces far less heat in fever than he often does under circum- stances which normally increase heat-production, such as a cool environment and muscular exercise. . . That in health vastly increased heat-production may occur with comparatively little change of temperature, is, of course, due to the fact that the dissipation of heat is proportionately increased. It is self-evident, and, so far as I know, has never been disputed, that in fever the equilibrium is so disturbed that heat-loss does not corre- spond to heat-production, as it should in health." Many very interesting experiments have been made with a view to determine the relation, if any, which ex- ists between heat-production and work-production in the muscles. It has been found that a muscle stimulated to action by an electric current produces both motion and heat, but that under long-continued stimulation the muscle becomes fatigued as a heat-producer much sooner than as a work-producer. The heat-producing function may even be abolished through fatigue without total or even very marked loss of the power of work-production. Cold is also capable of depressing or abolishing thermo- genesis without notably affecting the motor function. The two functions are further distinct as to time, for while muscle-action causes heat-production, it is not nec- essary to it. A muscle which is at rest, so far as motion is concerned, continues to be a heat-producer so long as its nutrition and innervation remain intact. In other words, heat-production is constant, work-production in- termittent. There cannot, therefore, be any constant relation between muscle-force and heat-production. Drs. Mead Smith, Macalister, and Lukjanow10 conclude, from their experiments in Ludwig's laboratory, that the two processes are independent of each other in nearly all features, and in all such external relations as fatigue, exhaustion from inanition, rest, and temperature. Macalister, basing his conclusions on his own experi- ments and those to which reference has just been made, says : " The conclusions I have adduced, and especially those relating to the power of recovery in a fatigued muscle, under the influence respectively of rest and of the blood-supply, point to the conclusion that the two metabolisms are in some way different; in other words, 307 Fever. Fever. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. that the ' contractile stuff ' in the muscle is not the same as the ' thermogenic stuff.' Both of them are stored up in the muscle ; so far as function is concerned they are the muscle. The store of each can be exhausted by re- peated stimulation, but in some cases the thermogenic store sooner than the other. Both can be upbuilt again by the circulating blood, but in some cases the contractile store sooner than the thermogenic. Both the metabo- lisms are affected by cold, but the thermogenic much more intensely than the contractile. We know little of the chemical changes involved in either form of metabo- lism. Oxygen is taken up in each and carbonic acid is discharged, but the processes passed through between these terminal stages are much more complex than mere oxidations. The evidence rather goes to show that it is the living substance, as a whole, contractile stuff and thermogenic stuff, which is continually being decom- posed and as continually recomposed by the blood." The independent character of these two functions of the muscles has suggested the probability of an indepen- dent nervous control over each function, but no separate nerve-supply for the government of them has yet been discovered. It is believed by some investigators that thermogenesis is under a motor and inhibitory nervous mechanism similar to that which governs the thermolytic and so many other mechanisms with which we are fami- liar ; but nothing is known of the path by which these motor and inhibitory impulses reach the muscles, unless they are conveyed by the same nerve-trunks which carry the impulses for the control of the work-producing func- tion. Probably they are in some manner transmitted by the motor fibres, or if a special nerve-channel exists, it may probably be so associated with the former as to be undistinguishable from it. Mead Smith attempted to demonstrate the existence of separate fibres for thermic and motor impulses by means of the injection of curare, but without success. Mosso,11 however, found that by the administration of moderate doses of this drug the motor nerve-endings may be completely paralyzed with- out obliterating the sensibility of the thermic nerves ; he. also found that the injection of strychnia into animals thus moderately curarized produced elevation of tem- perature, but no excitation of the motor function of the muscles. The centre which controls thermogenesis has been located by nearly all investigators in the corpus striatum. The. evidences which have led to this con- clusion have been both clinical and experimental, the former class beginning with Sir Benjamin Brodie's case of fracture of the cervical vertebrae and spinal-cord in- jury ; the latter class with Bernard's experimental sections of the sympathetic in the necks of animals with resultant rise of temperature. Subsequent experimenters, among whom none have been more painstaking and conscien- tious than H. C. Wood, of our own country, have arrived at fairly uniform results, although differing widely as to details. Following up the experiments of Tscheschichin, this investigator found, by calorimetric experimentation, that an actual increase of heat-production occurs after section of the nerve-matter at the junction of the pons and medulla. From this he concludes that there are situated above this point thermo-inhibitory centres. More definite conclusions have been arrived at in regard to the location of these centres by Ott, Aronsohn and Sachs, Baginsky, and others. Ott12 concluded that there are four heat-centres in the cerebrum, one in the vicinity of the corpus striatum, one in the caudate nucleus, a third in the anterior inner end of the optic thalamus, and the fourth near the median line between the optic thalamus and corpus striatum. Injury of the centre in the optic thalamus caused the most pronounced rise of temperature. Aronsohn and Sachs13 found that puncture of the an- terior part of the caudate nucleus, near its median con- vexity, causes rapid rise of temperature, amounting to three or more degrees, and continuing for two or three days, and that electrical stimulation of the same region causes a similar rise of temperature. This was accom- panied by increased absorption of oxygen and el innnation of carbonic acid and nitrogen. They, therefore, con- clude that there is here located a thermo-excitory centre. (SUPPLEMENT As further evidence of the existence in the corpus striatum of a nervous mechanism intimately connected with the production of heat, White14 cites the fact that this body is larger in warm-blooded animals than in cold, and largest in those which are subject to the highest rise of normal temperature, especially birds. Thermotaxis.-The thermotaxic mechanism to which reference has been made has for its office to maintain a balance between thermogenesis and thermolysis, probably by causing modifications in the action of one or other of these mechanisms, or both. It is supposed to reside in the nervous system, but its precise location is not known. Ott locates it in the cortex in the vicinity of the fissure of Rolando, with some fibres at the base of the brain in some way connected with it; but Corin and Van Benedin 15 deny that any cortical centres are in any way connected with the heat-mechanism, since they were able to remove the hemispheres in pigeons without causing any change of temperature. Probably absent altogether from cold- blooded animals, the thermotaxic mechanism is much better developed in man than in the lower warm-blooded animals, a fact supported by the much greater stability in man of normal temperature. That it is but poorly developed in infants is indicated by the ease with which trifling causes produce marked disturbances of tempera- ture, depressions on exposure to cold, and elevations on the occurrence of slight functional disturbances, as of the digestive organs. White believes that the human embryo is, until quite the late months of intra-uterine life, a cold- blooded animal, depending for its warmth upon that of surrounding media. Welch16 believes that fever-pro- ducing agents must act directly or indirectly upon the mechanism which regulates the harmonious relation of heat-loss to heat-production. Macalistcr does not limit the production of fever to the disturbance of thermotaxis, but believes that there are three degrees of disturbance ordinarily produced. "Fever necessarily implies (1) a disorder of the thermotaxic mechanism ; (2) an excessive production of heat, associated with excessive chemical changes in the tissues, the excessive production being more or less than that of a normal patient in full diet (perhaps oftener less than more), but more than that of a normal patient on fever diet; (3) that the body tempera- ture depending upon the balance between production and discharge, fluctuates as the one or the other is in the ascendant, and is not, per se, a true measure of either, or of the consumption of tissue that may be going on. When thermotaxis alone is disturbed, the result is a peculiar rising and falling of the temperature, depending upon variations of production and loss, without the normal controlling influence of the affected centre. This has been termed thermal ataxia. The next degree of dis- turbance is that which is probably present in ordinary fever, namely, a disturbance of thermotaxis and thermo- genesis, resulting in a loss of the controlling influence and an increase of heat-production. With this is asso- ciated, as a rule, a stimulation of thermolysis, an in- creased dissipation of heat. When, however, we have, in addition to the disturbance of thermotaxis and thermo- genesis, a diminution of the dissipation of heat, the result is hyperpyrexia. The reduction of heat-dissipation thus produced is supposed to be in great measure a result of the action of high temperature, and to denote an exhaus- tion of the nervous mechanism controlling thermolysis ; it is in part also, no doubt, a result of the action of the toxic matter which is the cause of the increased tempera- ture." Fever, in other words, according to Macalistcr, is a process of dissolution from above downward, affecting first the centres most recently evolved and therefore most liable to disturbance, and last, those which are most stable (White). In recovery, too, this author maintains, with apparent correctness, that control is regained from below upward. First the thermolytic mechanism is in- cited to action, which is frequently indicated by the oc- currence of more or less profuse sweating. As thermo- genesis becomes more and more inhibited the temperature rises less and less high on succeeding days ; but uhtil thermotaxis becomes fully established the rhythm of thermogenesis and thermolysis is easily disturbed by such 308 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Fever. Fever. trifling causes as errors in diet, fatigue, etc., the con- dition of the convalescent in this regard resembling some- what that of the infant. Wood 11 maintains that the cerebral centre is inhibitory in character, its disturbance permitting rather than pro- ducing increased thermogenesis. Heat-dissipation he places under control of the vaso-motor centres. In a contribution to the American Association of Physicians he thus recently summarized his theory of pyrexia : First. " Fever is a disturbance of calorification in which, through the nervous system, heat-dissipation and heat-production are both affected. If there be a fever which is produced by the direct action of a poison, inde- pendent of the nervous system, we have at present no proof of its existence. Second. "Heat-production is regulated by a nervous apparatus of which the knowledge is still imperfect. There is certainly an inhibitory centre which depresses or controls the production of heat. It probably does this by acting on the trophic cells of the gray matter of the spinal cord. It is possible also that there is a centre which, when excited, increases tissue-change, but its ex- istence has not yet been proved. Third. " Heat-dissipation is regulated through the vaso- motor system, so that vaso-motor paralysis is followed by an enormous loss of animal heat, and, under favor- able conditions, by death from cold." 17 Hanfield Jones 18 adopts a yet simpler view in the sup- position that elevation of temperature is a paralytic phe- nomenon due, as is also the increased heart action and rapid respiration, to a toxic depression of nerve-centres similar in character to the depressant action more easily recognized in the clouding of the intellect and impair- ment of muscular mobility. Immediately after the lectures of Macalister, Macla- gan 19 published a series of articles on pyrexia and hy- perpyrexia. He considers these not as different degrees of the same condition, but as essentially different in their causation. He states two theories of fever', first the com- bustion theory, according to which there is abnormal activity of the heat-producing process ; a second, the neurotic theory, according to which the elevation of tem- perature is due to the impairment of the inhibitory force which keeps heat-production within normal bounds. He does not regard the two theories as antagonistic, but believes that each has its sphere of applicability. The combustion theory applies to all such specific fevers as malaria, rheumatism, and pneumonia-to all, in short, in which the poisons may be supposed to be micro-organ- isms, whose morbific action depends upon their organic development. He thinks it probable also that the fever of all inflammations is thus produced, not that all are necessarily due to foreign organisms, but because exces- sive activity of the minute cellular elements of the tis- sues may have the same effect on their metabolism as the propagation in them of foreign organisms. The neurotic theory explains probably all cases of hyperpyrexia result- ing from non-inflammatory lesions in the nerve-centres, and probably most forms of so-called ephemeral fever. Austin Flint20 believes that the cause of fever is two- fold, the more important factor being an exaggeration of the chemical changes taking place within the organism which generates the animal heat within normal limits, the other factor being a disturbance of the process of equali- zation of temperature, which acts mainly through the skin. He believes that the original cause of most, if not of all, the essential fevers is a micro-organism, different in character in different forms of fever. The author does not, however, in this connection enter into a discussion of the theory of nervous supervision over the heat-mech- anism. Causes of Fever.-The study of the etiology of fever has confined itself for the most part to the investi- gation of the action of ferments and putrid matters when introduced into the circulation, and to the effects pro- duced by the entrance into the organism, experimentally or otherwise, of the micro-organisms of disease and their products. Fever sometimes undoubtedly occurs, how- ever, which is due to the direct impression on the nerve (SUPPLEMENT.) centres of influences arising in the body, even in the ner- vous system itself, quite independently of the action of chemical products of any kind. The chemical agents which produce fever are of two kinds, namely (a) those which are a result of metabo- lisms going on in the organism independently of micro- organisms, and (b) those which result from the action of micro-organisms. The former bear close resem- blance, if not relationship, to the physiological ferments, or are identical with them. Instances of their action are believed to be seen in the so-called aseptic fever fol- lowing the receipt of severe injuries and the fracture of large bones, which are removed from infection or are cared for in the most rigidly antiseptic manner. Some of these agents are supposed to exist in small amount in the healthy organism, others to result from the de- composition of extravasated blood or other tissue. The fever of anaemia is also supposed to be, in some instances at least, a result of this kind of intoxication. The second class of fever-producing agents, resulting from the action of micro-organisms, are of two kinds, agreeing with the pathogenic or non-pathogenic nature of the organisms of which they are the products. The term non-pathogenic is here used in its usual significa- tion, designating micro-organisms which are not capable of propagation within the human body, although in some instances capable of producing disease when in- troduced into it. Large numbers of these organisms, for the most part saprophytes, reside at times in the body. They exist in great numbers and in great variety in the alimentary canal, into which they gain entrance with the food. The products of their metabolism alone gain access to the circulation, and the fever thus pro- duced, as also its degree and the character of the accom- panying symptoms, depend in part upon the amount and the character of the substance absorbed and the character of the organisms producing them, and in part upon the nature of the soil on which the organisms have grown, the character of the environments, etc. Examples of the pyrexia thus induced are abundantly seen in the fever caused by digestive disorders, particularly in children ; in the fever which results from the absorption of toxic mat- ters deposited by micro-organisms, upon the surfaces of the mucous membranes of the fauces and tonsil, includ- ing perhaps some cases of diphtheria ; in the elevation of temperature which follows wound-infection ; and in many of the cases of poisoning which follow the eating of such unsound food as decayed meat or fish. Most, if not all, the acute infectious diseases are now attributed to the presence and growth within the body of micro-organisms, the so-called pathogenic bacteria. Fever in these diseases is believed to be due to the chemical products of these organisms, and therefore we attribute the symptom to the organism which produces the poison. Although the organisms exist and grow within the blood-vessels, spleen, lymph nodes, and other glandular organs, few symptoms ever, and fever probably never, result from the direct action of the bacteria. Their chemical products, carried by the circulating blood, act directly upon the centres governing the heat-mechanism in the manner that has already been described. Comparatively little is known concerning pyrexia re- sulting from the disturbance of the thermotaxic mech- anism by any other than chemical irritants. Instances of it are, however, supposed to be presented in the ele- vations of temperature occurring in hysteria, in pro- nounced nervous excitement, particularly of children, and in convalescence. The elevation of temperature which sometimes occurs in convulsions may be regarded as of this character only when the convulsive phenomena are due entirely to nervous excitation in the absence of any toxic influence. Effects of Fever.-The list of disastrous results which can be attributed to fever has been greatly shortened during the last few years. Formerly nearly all functional disturbances and all tissue-changes which occurred during the existence of a pyrexia were attrib- uted to the elevation of temperature, and so great was the fear of fever that its reduction became almost the 309 Fever. Field Surgeons. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) sole object of treatment. A reversion from these views has occurred, however, which is so complete that we no longer look upon an occasional rise of temperature to 104° or 105° F. with much alarm, and there are those who maintain, with probable correctness, that elevation of temperature is one of nature's methods of combat- ing disease-a vis medicatrix natures. To determine the effects of high temperature many clinical observations and many experiments have been made by a large number of investigators. Probably the method which has yielded the most satisfactory results has been that of observing the effect of external high temperature on man and animals. By this means we have produced not only the desired elevation of internal tem- perature, but also the elimination of the influence of toxic elements which must always be taken into con- sideration when observations are made at the bedside. As a result of the observations referred to, all experi- menters agree that a mammalian animal, artificially heated, dies when its temperature reaches 44° or 45° C. (111.2° or 113° F.). The death is preceded by convul- sions, is quickly followed by rigor mortis, and is attrib- uted to heart paralysis. Most of the animals experi- mented upon show signs of illness at a temperature sev- eral degrees below the lethal point, and it was inferred by most observers that toxic changes were produced by the increased temperature. But Naunyn reasonably attrib- utes the cause of death, in many of the reported experi- ments, to the fact that the animals experimented upon were confinedin small, ill-ventilated compartments, suffi- cient alone to cause their illness. By correcting these errors he succeeded in keeping a rabbit alive for thirteen days at an average temperature of 41.5° C. (106.7° F.). Welch,21 by following Naunyn'ssuggestion, succeeded in keeping two black rabbits alive three weeks with an average temperature of 41.8° C. (107.3° F.) and 41.4° C. (106.6° F.), respectively. His observations are probably the most accurate that have yet been made. Although the animals lay most of the time stretched out, they took their food greedily and manifested no symptoms of ill- ness. It was found essential to the success of the ex- periments, however, that the temperature be gradually raised. It was found that no factor is more important in determining the effects of external heat than the animal's power of temperature regulation. Failure of this power (paralysis of the thermotaxic mechanism) is followed by a sudden rise of internal temperature (hyperpyrexia) which may quickly attain a point incompatible with life. This point varies with different animals, and with the same animal at different times. The condition of the blood was found to affect the animal's resistance to a marked degree, a state of anaemia greatly reducing its power of resistance. The experiments of Maurel22 are also of interest as indicative of the cause of death in high elevation of temperature. He found that a temperature of 44° to 45° C. (111.3° to 113° F.) destroys the vitality of the leucocytes within a few minutes, a temperature of 43° to 44° C. (109.4° to 111.3° F.) within an hour, and from 42° to 43° C. (107.6° to 109.4° F.) within three hours. But if the temperature be reduced, the leucocytes regain their vitality. Welch concludes, from his own observations and those of Naunyn, that a considerable part of the current argu- ments based upon experiments concerning the injurious effects of high temperature, must be revised. " Because an animal may be killed by raising its temperature to 111° F. (43.9° C.), or 113° F. (45° C.), it does not follow that an increase of temperature up to within 4° or 5° F. of this fatal point involves danger to life, or even any serious disturbance of the functions of the body. Although experiments in hot-air chambers show that in man brusque elevations of the temperature by only a few degrees give rise to serious symptoms, Krishaber23 found that by habituation his temperature could be raised to 106.5* F. (41.4° C.), or 107.2° F. (41.8° C.) with- out much discomfort." From a clinical stand-point, therefore, much depends upon the gradual accession of the fever and the intervals of depression between the maximal points of elevation. One of the earliest and most striking symptoms of fever is an increased rapidity of respiration, a symptom which has been generally attributed to the direct action of the high temperature upon the respiratory centres. Sihler24 has, however, shown that another factor, and probably a more important one in experimental pyrexia, at least, enters into its production, namely, the stimula- tion of the skin. Although it is probable that the stimu- lation of the skin by heated blood may in a measure in- fluence the rapidity of respiration in man, it undoubtedly does so to a much less degree than in the animal ; and the truth still remains that increased respiration is due chiefly to the direct action of the warm blood upon the respiratory centres. The heart is stimulated to increased action in pyrexia by the direct impression of the heated blood. Martin 25 has demonstrated that the heart beats quicker when sup- plied with warm blood than when supplied with cold blood, and that its rate of action depends much more upon the temperature of the blood in the coronary arte- ries than on that in the right auricle or ventricle. Although this fact has been demonstrated, we are not justified in supposing that the elevation of temperature is in a given case the only element in the production of the accelerated heart's action, for this may result in a great measure also from the action of the chemical irri- tants which are more or less directly the cause of the pyrexia. Changes in the arterial tension and blood-pressure in fever have been attributed to the action of increased heat, but they are probably due, as Welch has shown, much less to increased temperature than to other causes, especially to the infectious agents which have induced the elevation of temperature. Fatty degeneration of the heart, liver, kidneys, and other organs, and of some of the voluntary muscles, has been more or less generally observed as a conse- quence of continued high temperature ; but there is not a unanimity of opinion as to how far these changes may be attributed to the elevation of temperature, and in how far they are the result of other causes. Heat is at least not the only element capable of producing the degenera- tion in these cases. Many other phenomena, more or less generally at- tributed to the influence of high temperature, might be mentioned did space permit and their importance jus- tify. In many instances, however, the conclusions that would have to be drawn are more or less speculative in character. Among the phenomena referred to may be mentioned the almost universal wasting of tissues in fever, the reduction of digestive power, the constipation, the increased absorption of oxygen and increased dis- charge of carbonic acid to which reference has been made, the clouding of the intellect, the prostration, the coma-vigil, disturbances of tendon reflexes, muscular weakness and twitchings, and other manifestations of nervous disturbance. There can, however, be no doubt that in most of these instances the phenomena are at- tributable as much to the action of poisons circulating in the body as to the elevation of temperature. Flint26 believes that while the special morbific cause of the dis- ease in these cases is the cause of the delirium, etc., it is rational to suppose that it acts as a secondary cause of these phenomena, by virtue of changes induced directly by the prolonged elevation of body temperature. This statement is supported by the fact that the abstraction of heat, by means of cooling applications to the exterior of the body, is sufficient to arrest these nervous phenomena. The leading premise from which certain writers have drawn their argument of the beneficial action of fever is the fact that the vitality of micro-organisms is destroyed by heat. Few of them can withstand a temperature of 40° C. (104° F.) except for a short time, the activity of their growth diminishing as the temperature approaches this limit. From this fact it is concluded that a moder- ate amount of fever is sanatory in its effects on the infec- tious diseases. Treatment of Fever.-Fever being no longer re- garded as of necessity an element of great danger, the 310 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Fever. Field Surgeons. object of treatment is rather to exert a judicious control over it than to entirely overcome it. A reaction has set in against the too free administration of antipyretics, owing in great measure to the disappointment which has followed their universal adoption by the profession. Liebermeister21 has given us a judicious summary of the treatment of fever. He says that in many cases of febrile disease the height of the temperature constitutes a danger ; that in these cases the therapeutic problem is to reduce the temperature. The basis of antipyretic treatment is the direct withdrawal of heat by means of cooling baths ; yet in many cases the administration of antipyretic medicaments is at the same time necessary. Flint's classification of the methods of treating fever is as follows :26 1. Reduction of the general temperature by the external application of cold. 2. Reduction of the temperature by the internal ad- ministration of antipyretics. 3. Promotion of general nutrition by alimentation. 4. Measures to supply to the system matters that can be consumed in the excessive production of heat, thereby retarding the destruction of tissues. Directions for the reduction of temperature by means of the application of cold to the exterior of the body may be found in the Reference Handbook of the Med- ical Sciences, Vol. III., p. 69. Treatment by the internal administration of antipyret- ics has not proved so successful as was anticipated a few years ago, upon the introduction of the synthetically prepared agents of the coal-tar series. Although these remedies as a class have the power to promptly and com- pletely overcome fever, it has been found that they other- wise exert no beneficial action on the course or duration of the disease. In some instances, too. peculiar to the case no less than to the antipyretic agent employed, their administration has been followed by phenomena of ex- ceedingly unpleasant or even alarming character. No definite statements can be made as to the manner in which antipyretics reduce the temperature. Many ex- periments have been made for the solution of this prob- lem, but the results have not been altogether satisfactory. Lauder Brunton is doubtless correct in classifying all antipyretics under the two heads of those which lessen the production of heat and those which increase the dis- sipation of heat. It is maintained by some writers, how- ever, that these agents act largely by stimulating the thermotaxic mechanism. Acetanilide, antipyrine, and phenacetine fairly repre- sent the synthetically prepared antipyretics, and are probably more frequently prescribed than any other at the present time. Acetanilide is not only frequently administered alone, but is the active ingredient in nearly all so-called antipyretic compounds which have been in- troduced by manufacturing pharmacists of this country. Antipyrine, once the most popular of its class, has suf- fered much on account of unfavorable reports of its action. Gastric irritation, occasionally persistent vomit- ing and diarrhoea, a depressant action on the heart, syncope, are among the evil results attributed to it ; but they are doubtless in great measure the result of its im- proper administration, particularly the giving of unnec- essarily large doses. Phenacetine by many is esteemed as the safest of the antipyretics, and few instances of ill effects have been recorded. For a thorough consideration of the subject of antipy- retics, the reader is referred to works on materia medica, and to the articles in the present volume which treat of the individual drugs belonging to this class. James M. French. 9 Welch : loc. cit., p. 370. 10 Du Bois Reymond's Archiv. 1886. 11 Mosso : Virchow's Archiv, Bd. 106. 12 Ott : Journal of Nervous and Mental Diseases, vol. ii.. 1884; Medi- cal News, vol. xlvii., 1885; Therapeutic Gazette, September, 1885. 13 Aronsohn and Sachs : Pfliiger's Archiv. Bd. 37. 14 White : American Journal of the Medical Sciences. 1890, vol. c. 15 Corin and van Benedin : Archives de Biologie, 1887. 18 Welch : loc. cit. (see 7, supra). 17 Wood : Transactions of American Association of Physicians, Medi- cal News, 1887, vol. 1. 18 Hanfield Jones : Practioner, 1887. 19 Maclagan; Lancet (London), 1887, vol. ii. 20 Flint : Address on Fever, General Session Internat. Med. Congr., 1887, Medical News, vol. Ii. 21 Welch : loc cit. 22 Maurel: La Semaine medicale, September 27, 1891. 23 Krishaber : Gazette med. de Paris, 1887, (Cited by Welch, loc. cit.) 24 Sihler : Journal of Physiology, vol. ii. 25 Martin: Philosophical Transactions of Royal Society, pt. 2, 1883. 28 Flint : Medical News, 1887, vol. ii. 27 Liebermeister : Deutsche Medizinische Wochenscrift, January 5 1887. FIELD SURGEONS AND MEDICAL DEPART- MENTS, UNITED STATES ARMY. Since the publi- cation of the Reference Handbook, in 1886, the United States has participated in no great wars. Its ex- perience, however, in Indian hostilities has been con- stant, and certain knowledge regarding the duties and responsibilities of the Field Surgeon of the Army has thereby been increased and perfected. With a medical staff into which are constantly re- ceived young men representing the highest education and culture, whose predecessors, now older, have pos- sessed the same qualities, and in addition now possess the enthusiasm springing from success, and the knowl- edge born of experience, it is manifest that progress was to have been expected. Accordingly I shall attempt to indicate such differences as have arisen in the past six years in the administration of the Medical Department in the United States Army, especially as to those duties and conditions treated of in the article on the duties of Field Surgeons which was published in Vol. III. of the Reference Handbook. Organization of the Medical Department of the Army.-For the single Assistant Surgeon-General, the Chief Medical Purveyor, and four Sur- geons, with the rank of colonel, existing in 1886, have been substituted by law, six As- sistant Surgeon-Generals, with the rank of colonel. Instead of the eight Surgeons and two Assistant Med- ical Purveyors, with the rank of lieutenant-colonel, have been substituted ten Deputy Surgeon- Generals,with the rank of lieutenant-colonel. In consequence, a Medical Purveying Depart- ment, separate and distinct, has been abolished. The motives influencing Congress to legislate for the above changes were principally two. The first was to assimilate the titles borne by the higher officers of the Medical Department to the titles borne by the higher officers of some of the other staff corps of the army. Thus in the Quartermaster and Pay Departments the colonels were styled, respectively, Assistant Quarter- master-General and Assistant Paymaster-General, and the lieutenant-colonels were Deputies. But, besides this, it had become manifest that the best work in pur- veying could be accomplished by allowing the Surgeon- General to select for purveying duties, from time to time, such men as had shown aptitude and taste for this spe- cial and peculiar business. The men hitherto who, in natural sequence under the law, had become medical purveyors, were not necessarily those the best fitted for or the most desirous of discharg- ing the duties of a purveyor, nor had they always been able or willing to give the bonds required of medical purveyors by law. It had therefore been found necessary, for the reasons above stated and other reasons, to obtain the interference of the President of the United States, by whom alone medical purveyors could be assigned under the law to other duties than purveying. To obtain such interfer- ence when suddenly required was not always easy or convenient, and the Surgeon-General therefore found it Rank o f medical offi- cers. Purveying Department abolished. 1 Macalister : Gulstonian Lectures on The Nature of Fever, 1887 ; also Lancet (London). 1887, vol. ii. 2 Colasanti : Pfiiiger's Archiv, Bd. 14. 3 Lilienfeld : Pfiiiger's Archiv. Bd. 32. 4 Finkler : Pfiiiger's Archiv, Bd. 29. 1 5 Regnault and Reiset: cited by Welch (see infra). 8 Regnard : Recherches exp. sur les Variations pathologiques des Combustions respiratoires (Welch). 7 Welch : Cartwright Lectures. 1888, Medical News, vol. lii. 8 Ord : British Medical Journal, 1885, vol. ii. 311 Field Surgeons. Field Surgeons. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. necessary to recommend legislation on the subject. In future the most suitable medical officer will be selected and detailed as medical purveyor. The number of surgeons, with the rank of major, 50, remains unaltered ; also the number of assistant sur- geons, viz., 125 ; of whom those under five years in service have the rank of first lieu- tenant, and those of more than five years' ser- vice the rank of captain. The full number allowed are not, however, actually in the service ; that is, the casualties have been more numerous than the successful candidates who have passed the examination before the Medical Board, so that at the present writing there are thirteen vacancies among the assistant-surgeons. A less number, however, are on leave of absence than when the Reference Hand- book, Vol. III., was published. The strength of the army is unchanged, the last Army Register showing an aggregate strength of 28,526, so that the proportion of medical officers to the whole army is unchanged in the last six years. Certain changes in the army, however, have rendered, medical administration somewhat easier. The number of military posts has been sensibly dimin- ished by the concentration of troops. Consequently it has been found possible, with the same number of med- ical officers in the army, to supply a greater number of military posts with more than one medical officer, and in consequence the additional medical officer has been found available to accompany detachments or larger commands for field service, when formerly the com- mands would have been obliged to proceed without a medical officer, and to have sent their sick and wounded to the nearest military post for treatment. Manifestly this course was only possible when, in consequence of operating in its own country, as the United States army has done, the moving troops were sufficiently near to military posts to send there the sick and wounded with- out too much inconvenience and suffering. During the past eight years the National Guard of the different States have assembled at different and suitable places as camps for purposes of discipline and inspection. The surgeons and assistant sur- geons have accompanied the various military organizations to these camps, but not always in the full numbers authorized by law. The most of these camps have been inspected by duly author- ized inspectors ; and without attempting to give the re- ports of all these inspectors (the great majority of which I have not seen) as to the medical organization and its fitness to bear the strain of a campaign, I may say that while none has been perfect, none has been found abso- lutely unfit for its work, and most have merited praise, while the medical officers have been of more than ordi- nary intelligence. The allowance of medical officers to each regiment has been one surgeon and two assistant surgeons with the same rank as in the regular army. The experience of the past six years does not change our conclusion that the size of the medical corps of the United States army is not too large or too small in proportion to the size of the army; and that the most proper number of medical officers to a regiment of the strength now au- thorized by law, where the medical officers also are regimental, is one surgeon and two assistant surgeons. A new law passed by the last Congress requires that assistant surgeons shall pass an examination before pro- motion to the grade of captain ; this in addition to the examination required by former laws. Recruits.-Inasmuch as the necessity for soldiers is greater in time of war than in time of peace, the physical examination of recruits becomes more lax in the former period, and so it hap- pens that in the army of the United States physical examinations have been more strict for soldiers, cadets, and officers in recent years. In regard to the examinations, the directions (SUPPLEMENT.) which appeared at the bottom of column first, page 106, Vol. III., of the Reference Handbook, are no longer issued, and the rules and entire system of examination have been arranged for the better. So late as at the beginning of 1892, the adjutant-gen- eral of the army issued a memorandum of instructions practically forbidding the enlistment, save as musicians, of any persons under twenty-one years of age. These instructions are in entire harmony with the views expressed, concerning the minimum age of enlist- ment, on page 106, Vol. III., of the Handbook. In the effort to raise the standard of examination, the present system gives much attention also to the intellectual and moral. On these subjects the Epitome (which is the standard of instruc- tions for the army) uses the following lan- guage : " Intellectually, although no educational standard officially is established, a soldier should be able to read and write, and should also be quick and clear in his un- derstanding. The advance in the science and art of war and the improvement in modern fire-arms call for a higher degree of intelligence than was required of the sol- dier in the past. This is recognized by the Government by establishment of schools and libraries, by providing reading-rooms that are liberally supplied with periodicals and newspapers, and by opening the way for promotion to all who avail themselves of these opportunities for advancement. The care and attention that the soldier is required to give to his weapon and ammunition, the drill which its use entails, and the skill which may be attained by the practice of rifle-firing develop individ- uality, excite interest and ambition, and tend to make the profession attractive. It is therefore desirable that men should be selected who can appreciate this life and who have the mental capacity to profit by it. The moral character should be scrutinized with care in order that enlistments from the vagrant and criminal classes may be avoided. The recruiting rendezvous is a favorite haunt for these men, and a study of their personal char- acteristics will well repay the recruiting officer for his labor. The vagrant seeks admission to the army, usually at the beginning of winter, for shelter, food, and cloth- ing, without any intention of completing his enlistment or of performing any more service than he is compelled to perform. The criminal seeks to bury his unsavory his- tory under an assumed name, and, by service in distant sta- tions, to escape the observation of those who know him. The evil influence in a company of even one of this class cannot be over-estimated, and no degree of physical per- fection or soldierly bearing should induce a recruiting officer to accept his service. Happily, as a rule, the evi- dence of a life of debauchery is so plainly marked in the features and in the person that an ordinary observer is able to estimate the true character of such an applicant without difficulty." This is almost an ideal picture, and it is to be desired that the candidates for enlistment may all be scholars and Christian gentlemen. But it has been found in the past that the degree of education and virtue is not always to be discovered and measured by the appearance of the subject, and both uneducated criminals and vagrants are often able to elude the examination of surgeon and re- cruiting officer combined. Further remarks concerning the physical examination of recruits will be here omitted, as it is understood that the subject will be fully treated elsewhere in this vol- ume. Standard Supply Table of the Medical Depart- ment, United States Army.-In the course of the past six years, from time to time as occasion demanded, vari- ous articles have been added to the army list of medical supplies and various articles dropped therefrom. Various officers contributed their views on what was needed and not needed, for the medical supplies of the army in field and garrison, and finally a Board was or- dered to convene in New York City for the purpose (among others) of revising the Standard Supply Table of the Army Medical Department. The result of all the consideration of the subject has Number of medical officers. Intellectual and moral examination. R e gimen- tal medical officers i n the National Guard. Proper pro- portion of medical offi- cers to army. Qualifica- tions and disqualifica - tions for be- coming sol- diers. 312 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT. Field Surgeons, Field Surgeons. been that the following articles have been dropped from the Supply Table, page 108, Vol. HI., Reference Handbook. Articles. Allowance for posts having official popula- tion of: 100 200 400 >00 SOO 1,000 Medicines, Expendable.-(Continued.) Cannabis indica, tincture, tablets, 1 m. (100 in bottle), bottles 1 1 1 1 2 2 Cardamom, compound tincture, in 1-lb. bottles, ounces 10 10 10 32 32 32 Cerium oxalate, in 1-oz. bottles, ounces Cocaine hydrochlorate, in drachm vials, ounces 1 1 1 2 •) 2 X X; 3/ 1 IX 2 Cocaine hydrochlorate, hypodermic tablets, '/« gr., tubes ... 2 4 0 8 10 12 Coniine, hydrobromate, hypodermic tablets, >/80 gr.. tubes '. 2 2 3 3 4 4 Conium, tincture, tablets, 2 m. (100 in bottle), bottles 1 1 2 2 3 3 Cubebs, oleoresin, in 2-oz. bottles, ounces 2 2 4 4 6 8 Digitaline, hypodermic tablets, '/joo gr-, tubes . Elaterine, tablets, '/so Sr- (50 in bottle), bottles. 1 1 2 2 3 3 1 1 1 1 1 1 Ergotine, tablets, 2 gr. (100 in bottle), bottles.. 2 3 3 4 4 5 Eserine sulphate, hypodermic tablets, '/eo gr., tubes ... 1 1 2 2 8 3 Eserine sulphate, ophthalmic disks, Vaooo gr- (50 in box), boxes 1 1 1 1 2 2 Eucalyptol, in 2-oz. bottles, ounces ... 4 6 8 10 12 14 Gentian extract, in 4-oz. jars, ounces 4 4 8 8 8 16 Glycyrrhiza, fluid extract, in 1-lb. bottles, ounces 10 32 48 64 96 128 Glycyrrhiza, powdered extract, in 1-lb. bottles, ounces 32 32 04 96 96 128 Grindelia robusta, fluid extract, in 8-oz. bottles, ounces 8 8 8 16 16 16 Guarana, fluid extract, in 8-oz. bottles, ounces. 32 32 04 64 96 96 Hydrastis, fluid extract, in 8-oz. bottles, ounces 8 8 8 16 16 16 Hydrogen, peroxide solution.* pints 6 0 0 12 12 12 Hyoscine sulphate, hypodermic tablets, Vioogro tubes 1 1 1 1 1 1 Ichthyol, in 1-oz. bottles, ounces 1 o 3 4 4 5 Jalap, powdered, in 2-oz. bottles, ounces 2 2 2 4 4 6 Lavender, compound tincture, in 1-lb. bottles, ounces 10 32 48 64 SO 96 Menthol, in 2-oz. bottles, ounces 2 2 4 4 6 6 Mercury protoiodide, tablets. ]/6 gr. (200 in bot- tle), bottles 2 2 2 3 8 3 Morphine sulph., hypodermic tablets, 78 gr., tubes 10 15 20 30 40 50 Morphine sulph., tablets, '/g gr. (100 in bottle), bottles 2 4 0 8 10 12 Morphine sulph., */8 Kr> (hypodermic tablets, Atropine sulph., '/ioo gr. f tubes 2 4 8 12 16 20 Nitro-glycerine, hypodermic tablets, )/100 gr., tubes 1 2 2 3 3 4 Nitro-glycerine, tablets, ]/ioo Kr-> (100 in bottle), bottles 1 1 1 1 2 2 Nux vomica, tincture, in 8-oz. bottles, ounces.. 8 8 10 24 24 32 Oil, cotton-seed, in 1-quart bottles, bottles 24 32 48 64 80 96 Oil, sassafras, in 4-oz. bottles, ounces 4 8 « 16 16 20 Pancreatine, in 1-ounce bottles, ounces 1 1 2 3 3 Pepsine. pure, in 2-oz. bottles, ounces -1 4 8 12 16 20 Phenacetine. 5-gr. tablets (200 in bottle), bottles. 1 1 2 2 3 4 Pilocarpine hydrochlorate, hypodermic tablets, 7e gr., tubes 2 4 0 8 10 12 Potassium carbonate, in 8-oz. bottles, ounces... 8 8 10 16 32 32 Quinine bimuriate, hypodermic tablets, J/2 gr., tubes 2 2 3 3 4 4 Quinine bisulphate, in 1-oz. bottles, ounces .... 1 1 1 2 2 2 Salol, in 5-gr. tablets (125 in bottle), bottles.... 2 3 4 6 8 10 Senega, fluid extract, in 8-oz. bottles, ounces ... 8 8 8 16 16 16 Senna, fluid extract, in 8-oz. bottles, ounces.... 8 8 10 16 24 24 Sodium hypophosphite, in 8-oz. bottles, ounces 10 10 21 24 32 40 Sodium phosphate, in 8-oz. bottles, ounces. ... 10 10 24 24 32 40 Strophanthus, tincture, in 4-oz. bottles, ounces Strychnine sulph., hypodermic tablets, '/so gL> tubes 4 4 4 8 8 8 4 0 10 15 20 25 Sulfonal, 5-gr. tablets (200 in bottle), bottles... 1 2 4 4 6 8 Terebene, in 8-oz. bottles, ounces 10 32 32 48 48 Tragacanth, gum, in flakes, in 8-oz. bottles, ounces 8 8 10 32 32 Zinc phosphide, in 1-oz. g. s. bottles, ounces.... 1 1 1 1 1 1 Disinfectants, Expendable. Lime, chloride, in 25-lb. jars, pounds 12 24 48 72 84 96 Mercury, corrosive chloride, in 1-lb. bottles, bottles 1 1 2 3 4 Hospital Stores, Expendable. Beef peptonoids or meal, pounds 4 6 8 10 12 15 Gin, in 24 or 32-oz. bottles, bottles 2 2 4 6 8 10 Surgical Instruments and Appliances, not Expendable.^ Apparatus, compressed air, number " restraint, number 1 1 1 1 1 1 1 1 1 1 1 1 " steam sterilizing, number 1 1 1 1 1 1 Bags, rubber, hot water, number 1 1 1 2 2 2 Articles Dropped from Old Supply Table. Medicines. Instruments, Expendable. Acacia (Gum Arabic). Iron, solution of tersulphate. Morphine, acetate of. Oil, olive. Pepsin, lactated. Pills, mercury, green iodide of. Potassium bichromate. Acid hydrobromic. Arsenic and mercury, solution of iodide of. Brayera. Bromine. Cinchona, pulv. Codeine. Extract castanea, fluid. Extract eucalyptus, fluid. Extract glycyrrhiza, fluid. Extract Indian cannabis. Extract pilocarpus (jaborandi). Extract physostigma (calabar bean). Extract taraxacum, fluid. Mercury, metallic. Oil of lemon. Oil of rosemary. Pills, arsenic. Pills, arsenic, iodide of. Potassium, cyanide of. Potassium, nitrate. Strychnine, sulphate Tar (wood). Tincture cimicifuga. Tincture sanguinaria. Tincture serpentaria. Wax, white. Zinc, solution of chloride of. Zinc, oleate. Hospital Stores. Arrow-root. Chocolate. Cinnamon. Corn starch. Farina. Gelatine. Ginger. Meat juice, Valentine's. Nutmeg. Pepper, black. Pepper, cayenne. Tapioca. Tea. Wine. Nipple-shields. Dressings. Antiseptic dressings for use with spray apparatus. Cotton wadding. Splints in sets. Stenta book. Stationery. Blocks, memorandum. Sealing-wax. Miscellaneous, Expendable. Mugs, delft. Spoons, medicine, delft. Instruments, Non-expendable. Atomizer, steam. Meteorological instruments. Ophthalmoscope. Speculum for ear. Cloithng and Bedding. Bedsacks. Blankets, gray. Blanket cases. Counterpanes, striped. Mattresses, felt. Pillow-cases, linen. Pillow-ticks. Sheets, linen. Drawers. Gowns, dressing. Socks, woollen. Miscellaneous, Non-expendable. Bed-pans, metal. Bed-ticket, frames. Clothes-pins. Clothes-wringers. Hatchets. Medical saddle-bags. Medicine-cases. Medicine-panniers. Medicine-wagons. Pails, chamber. Pitcher, britannia. Sad-irons. Saw, wood. Washboards. This list of articles dropped is not as extensive as the list of articles which have been added to the old Supply Table and which follows. In a certain number of cases a certain preparation of medicine is dropped from the old table, and a different preparation of the same medicine appears in the list of articles added, so that it is merely a case of a substitution. Articles Added to Supply Table. Articles. Allowance for posts having official popula- tion of : 600 800 1,000 100 200 400 Medicines, Expendable. Acetanilide, 3-gr. tablets (500 in bottle), bottles. 1 6 8 10 12 14 Acid, boracic, powdered, in 1-lb. bottles, ounces 16 16 16 32 32 32 Acid, lactic, concentrated, in 2-oz. g. s. bottles, ounces 2 2 4 6 8 8 Antipyrine, 5-gr. tablets (200 in bottle), bottles . 1 2 3 4 5 6 Asafnetida, in 8-oz. tins, ounces 8 » 8 8 8 8 Atropine sulphate, hypodermic tablets, '/joo gr., tubes 5 5 10 15 20 Atropine sulphate, ophthalmic disks, '/son 8r- (50 in box), boxes 1 1 1 2 2 2 Benzoin, compound tincture, in 1-lb. bottles, ounces 16 16 32 32 48 48 Caffeine, hypodermic tablets, 1 gr., tubes 1 1 2 3 4 5 Calabar bean, tincture, tablets, 1 m. (100 in bottle), bottles 1 1 1 2 2 3 * To be made as needed at post from special outfit furnished. + See contents of cases of instruments, farther on. 313 Field Surgeons. Field Surgeons. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Articles. Allowance for posts having official popula- tion of: 100 200 400 600 800 1,000 Surgical Instruments and Appliances-(Cent.) Bags, rubber, ice spinal, number 1 1 1 2 2 2 Bougies, flexible, number as req uir ed. Box, fracture, folding, number 1 1 1 2 2 2 Brush-holder for larynx, number 1 1 1 2 2 2 Case, aspirating.* number 1 1 1 1 1 1 " dental,t number 1 1 1 1 1 1 " emergency, number as n e e d ed. " field, number ne e d ed. " field, operating, when specially approved, number 1 1 1 1 1 1 " forceps, haemostatic, 12-inch set, number. 1 1 1 1 1 1 " genito-urinarv, number 1 1 1 1 1 1 " pocket, aseptic. + number 1 1 2 2 2 3 " trial lenses, number 1 1 1 1 1 1 Catheter box, number 1 1 1 1 1 '' flexible, number Curettes, number as ne e d ed. as n e ed ed. Forceps, needle (Tiemann's), number 1 1 1 1 1 1 Inhaler and vaporizer, number... 1 1 1 2 2 2 " ether, number 1 1 1 1 1 1 Lavage-tube, number 1 1 1 1 2 2 Microscope, number 1 1 1 1 1 1 Pouch, hospital corps, number " orderly, number as n e e d ed. as n e e d ed. Sprinkler, iodoform, h. r., number 1 1 1 2 2 2 Stethoscope, double, number 1 1 1 1 1 1 Surgical pump, number Table, chair, or sofa, operating, as approved, 1 1 1 1 1 1 number 0 0 0 0 1 1 Thermo-cautery (Paquelin's), benzine, s. g. not over 0.724, as needed, number 1 1 1 1 1 1 Surgical Dressings, etc., Expendable. Bandages, rubber (Martin's), 4 yds. X 2)^ in., number 1 1 1 2 2 2 First-aid packets, number 12 18 24 32 56 70 Gauze, absorbent, plain, yards 5 10 15 20 25 30 " iodoform, 5 percent., in 5-yd. tins, yards.. 5 5 5 10 10 15 Needles, surgical (Hagedorn's), assorted, set.... 1 1 1 1 1 . 1 Paper, dressing, oiled, in 25-yard rolls, rolls.... 1 1 2 3 4 5 Sponges, chloroform, number 1 1 1 2 2 2 Tents, laminaria or tupelo, number 6 6 12 12 18 18 Wire, suture, silver, in loops, loops 2 2 3 4 5 6 Stationery, Expendable. Blotters, hand, number .) 2 2 2 2 2 Letter-press, brushes, number 1 1 1 1 1 1 " cups, number 1 1 1 1 1 1 Pads, prescription, number 18 24 36 36 48 48 " letter, number 6 10 10 18 18 18 Paper-fasteners, box 1 1 1 1 1 1 Paper, writing, typewriter, quires 18 20 24 24 Ribbons, copying, for typewriter, number as req uir ed. " record, for typewriter, number as req uir ed. Bedding, Clothing, etc., not Expendable. Mattress covers, number 10 15 20 25 30 40 Quilts, colored, number 20 20 30 40 60 Furniture, etc., not Expendable. Baskets, letter, number 2 2 2 2 2 2 " waste-paper, number 2 2 2 2 2 Bed-cradle, number 1 1 2 3 3 Bed, invalid, number 1 1 1 1 2 2 Bedsteads, with woven wire mattresses, number as req uir ed. Bedstead casters, rubber, number as req uir ed. Bell, hand, number 1 1 1 1 1 1 Book-case, number 1 1 1 1 1 1 Cabinet for blanks, number 1 1 1 1 1 1 Chairs, arm. number 12 15 20 30 40 50 " invalid, rolling, number 1 1 1 2 2 2 " office, revolving, number 1 1 1 2 2 2 Cups, sponge, number Desks, office, cloth top for, number 2 2 2 2 2 2 as req uir ed. Dish, soap, with' cover, for office, number 1 1 1 1 1 1 Inkstands, number 3 3 3 4 4 4 Letter-press, number .... 1 1 1 1 1 1 " " copying-board for, number 1 1 1 1 1 1 Matting, cocoa, yards " " zinc ends for, number as req uir ed. , as req uir ed. " rubber, yards req Oil-cloth, for table, yards Paper-cutters, number " weights, number 2 2 o 2 2 2 o 2 2 Pen-racks, number ? J f Pitcher, ice, silver-plated, number 1 1 i 1 1 1 Safe, iron, number 1 1 1 1 1 1 Articles. Allowance for posts having official popula- tion of; 100 200 400 600 800 1,000 Furniture, etc.-(Continued.) Screen, bed, folding, number Screens, door, wire, number *• window, wire, number " wire netting for, yards as req uir ed. Stamp, rubber, penalty, number 1 1 1 1 1 1 Tables, dining, extension, number. 1 1 1 1 2 2 " plain, number as Typewriter, number 1 1 1 1 Dispensary Accessories, not Expendable. Apparatus, distilling, 1-gal., if required, num- ber 1 1 1 1 1 1 Bandage roller, number 1 1 1 1 1 1 Brushes, flesh, rubber, number 1 1 2 2 2 2 " nail, number 1 1 1 1 2 2 " " holder for, number 1 1 1 1 1 1 Dispensing set, labels for, set 1 1 1 ] 1 1 Drawer-pulls, with labels, number uir Mortar and pestle, glass, 4-inch, number 1 1 1 1 1 1 Prescription file, number 1 1 1 1 1 1 Pus-basin, number 1 1 1 2 2 2 Stove, coal-oil, if required, number 1 ] 1 1 1 1 Tape-measures, 100 feet, number 1 1 1 1 1 1 Tray, antiseptic, number 1 1 1 1 2 2 Twine-boxes, number 2 2 2 2 2 2 Dispensary Accessories, Expendable. Atomizers, hand, number 2 2 3 3 4 4 Boxes, ointment, impervious, dozen . 12 15 20 25 30 35 Corks, large (No. 10), dozen.. 2 2 3 3 4 4 Envelopes for tablets, 2 X 2% inches, dozen ... 20 25 30 35 40 50 Eye-shades, number 1 2 3 3 4 4 Glue, liquid, in ^-pint cans, cans 1 1 1 2 2 2 Measures, glass, graduated, 16-oz., number ... 2 2 2 2 2 3 Needles, sailmaker's, number 1 1 1 1 1 1 Paper, urinary test, assorted, packages 1 1 1 1 2 2 " wrapping, brown, quires 1 2 3 4 5 6 Percolator, glass, number 1 1 1 1 9 2 Test-tubes, stand for, number 1 1 1 1 1 1 Vials, 1-drachm, dozen 2 3 4 5 6 7 Kitchen and Mess Utensils, not Expendable. Eggbeater, number 1 1 1 1 1 1 Forks, table, silver-plated, number M •36 48 56 72 72 Knives, table, silver-plated, number 24 48 56 72 72 Meat-covers, wire netting, assorted, number ... 6 6 9 9 12 15 " cutters, number 1 1 1 1 1 1 Pails, milk, with strainer, number 1 1 1 9 9 2 Pans, muffin, number 1 2 3 3 4 4 Potato-masher, number 1 1 1 1 1 1 Rolling-pin. number 1 1 1 1 1 1 Saw, butcher's, number 1 1 1 1 1 1 Sieves, flour, number 1 1 1 2 2 2 Skimmers, number 1 1 1 9 9 2 Spoons, basting, agate ware, numtier 2 2 2 2 3 3 " table, silver-plated, number 18 24 3li 48 56 72 " tea, silver-plated, number 18 24 36 48 56 72 Trays, bed, with legs, number 2 2 4 6 8 8 Bowls, sugar, with lid. number 2 2 4 4 6 G Dishes, vegetable, with covers, number 4 4 6 8 10 12 Gravy-boats, number 2 2 4 4 5 6 Pickle-dishes, number 2 2 4 4 5 G Pitcher, sirup, glass, number 2 2 3 3 4 4 Plates, invalid, number 2 2 4 4 6 G Miscellaneous, not Expendable. Blowers for insect-powder, number 1 1 1 1 2 2 Chart, anatomical, in case, set 1 1 1 1 J 1 Clothes-baskets, number 2 2 2 3 4 4 Crutches, pairs 4 G 11 10 12 Cups, spit, number 4 6 8 10 12 15 Grindstone, complete, number 1 1 1 1 Hose, canvas, feet ed. • '' couplings, number „■ as req uir ed. " nozzles, plain and spray, of each number 1 1 1 1 1 1 " reel-cart for, number 1 1 1 1 Ladder, step, number •1 "1 1 1 1 1 Lawn-mower, number 1 1 1 1 1 1 Litters, canvas for, pieces " straps for, number Litter-slings, pairs Manikin, physiological, or its equivalent, num- ber 1 1 1 1 1 1 Oil-can. with pump, 5-gal., number 1 1 1 1 1 1 Pots, watering, number 1 1 1 1 1 1 Scissors, lamp, number 1 1 1 1 1 1 Settees for porch or hall, number Sickle, number 1 1 1 1 1 1 Skeleton, in cabinet, number 1 1 1 1 1 1 Stencil, with outfit, for marking hospital cloth- ing. set 1 1 1 1 1 1 Trowel, garden, number 1 1 1 1 1 1 * Will not be issued where surgical pump is supplied. + Will not be issued where the services of a dentist can be obtained. i This pattern of pocket-case will not be issued for post use until the supply of personal and post cases is exhausted. 314 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Field Surgeons, Field Surgeons. Articles. Allowance for posts having official popula- tion of: 100 200 400 600 800 1,000 Miscellaneous, Expendable. Bath brick, number 2 2 4 4 6 6 Brooms, whisk, number 2 2 2 2 2 2 Crutches, rubber tips for, number as req 1 ed. Dusters, feather, long-handled, number 1 1 2 2 2 " " short-handled, number 2 2 3 3 4 4 Hand-grenades, number 12 18 24 36 48 48 Lamp chimneys, number as req uir ed. " shades, number as uir •d. " wicks, number as req req 2 uir ed. Lantern wicks, number as uir ed. Mousetraps, number 2 2 2 2 2 Naphthalin, in 10-lb. boxes, pounds as uir ed. Paper, tarred, in 100-ft. rolls, rolls as req uir ed. " toilet, packages 10 15 20 30 40 50 Sapolio, pounds 6 8 10 15 20 25 Talcum (French chalk), 1-lb. packages, ounces. as req uir ed. erences." In the second place, it was officially announced that " requisitions for articles not on the Supply Table, and which have been approved of as of value in the treatment and care of the sick, will be favorably con- sidered by the Surgeon-General when the amount of ap- propriation for medical and hospital supplies will war- rant. " The gratification of individual preferences has not been so fully provided for in the new Supply Table ; but in view of the progressive and far-seeing policy which has characterized the official doings and utterances of the medical bureau for the past thirty years, it can hardly be believed that a liberal spirit will not guide it in its action in the future, regarding the issue of articles not in the Supply Table. Certainly all tools are not equally fit for the same purpose, and equally truly dif- ferent men use with differing skill the same tool and different tools. Property Accountability.-Medical officers receiving and receipting for medical and hospital property are held strictly accountable therefor, and should fully acquaint themselves with the regulations on the subject. In con- sequence of their failure to obtain this knowledge, or their neglect, for any reason, to comply with those regu- lations, it has happened very frequently that young or inexperienced medical officers of the regular army, the volunteer forces, or the militia have found (and hereafter are in grave danger of finding) themselves confronted with considerable pecuniary losses, to meet which their pay is stopped. Medical property is not difficult to ac- count for if properly cared for. It is divided into ex- pendable and non-expendable, and in reference to the latter the greatest losses to the medical officer occur, but are unnecessary. Property non-expendable must be either accounted for by the receipt of some one else, or, if worn out, broken, or destroyed, evidence of such fact must be pre- sented to the propel' person, sometimes called an in- spector, sometimes a board of survey, sometimes the accounting officer, who receives the returns of property, which have elsewhere been named as required of officers accountable for property. Remembering these simple facts, medical officers will see the necessity of familiarizing themselves with the regulations on the subject, which can easily be complied with, and thus will save themselves the annoyance of pecuniary loss. In one special case the military surgeon may destroy property in his discretion, for the regulations of the Supply Table provide that tents, clothing, hospital furni- ture, and other articles used in the treatment of con- tagious diseases, will be disinfected or burned under the supervision of a medical officer; and the articles de- stroyed to prevent contagion must be accounted for by a certificate of the officer responsible, setting forth fully the circumstances necessitating such destruction. " The medical officer has discretionary powers, which are based on his knowledge of specific contagions and methods of disinfection. The efficiency of many of these methods is now so well established that they su- persede the necessity for burning." Since the publication of the Supply Table in Vol. III., the medical department has assumed the charge of sup- plying disinfectants for general post sanitation, and di- rects post surgeons as follows : " (a) Chloride of lime should be used only as a disin- fectant, properly so called, the cheaper sulphate of iron being used as an antiseptic and deodorant in privies, slop-barrels, etc. When a jar of chloride of lime has been opened, and a part of the contents removed, it should be sealed again with plaster of Paris. Solution of chlorinated soda will be issued in small amounts only for special personal disinfection. " (6) The selection and use of proper disinfectants and deodorants will be determined by the senior medical officer, who should not issue them unless, in his opinion, their use is necessary and proper. He will give explicit instructions as to the quantities to be used, strength of solutions," etc. Some of the articles above mimed were habitually issued prior to this, but their issue being authorized since the former Supply Table, or never having been formally authorized at all, their names now appear for the first time in a Supply Table. In looking over the names of the new medicines added to the list it will be noticed that a portion are : 1. New remedies, whose properties have been made public since the former Supply Table was published. 2. A certain portion are alkaloids and concentrated principles, a little of which goes a long way. 3. A very large portion, almost one-half, or twenty- seven out of sixty-four, are in the form of tablets or disks, convenient like Class 2 for transportation and use in the field. And 4. (It may seem a little strange), but a portion of the articles are the same as those which have been dropped from a Supply Table anterior to that published in this Handbook. This latter fact simply shows a change of fashion in medication, as well as the difficulty, and even impossi- bility, of any one man, or set of men, legislating or mak- ing rules that will be satisfactory and convincing to all others, or that should not be changed as time progresses. No differentiation has yet taken place of a Supply Table merely for the field, although, in all probability, ere many months one will be made out by competent au- Seiection of thority. In the meantime, the surgeon must medicines for select from the table for field service such field service, articles of medicine as may commend them- selves to his taste, his experience, and his judgment. For field service the Supply Table is largely redundant, and in selecting what he will take into the field-where transportation is scarce and hard to obtain-the surgeon must discriminate wisely, taking what he will need and use the most,-what is most concentrated and easy of transportation. The same principle must guide him in the selection of his instruments and other surgical supplies, and he must bear constantly in mind that, after a battle, the wounded will ordinarily be cared for not by the regimental surgeon, but by other surgeons detailed for that purpose; and that ordinarily the cases of sickness, serious and of long duration, will be treated elsewhere than at the regiment. The experience of the medical director will also come to the aid of the field surgeon, as by the first-named officer requisitions of regimental surgeons will be modi- fied before they are sent to the medical supply depot for issue; and it is the business of this officer to see that surplus supplies are at the depot, to make good unex- pected and unusual losses and deficiencies, by capture or otherwise. By the regulations governing the issue of medical sup- plies heretofore, the fact that different medical officers might differ in their choice of medicines was more than recognized. In the first place, it was officially stated that a supplementary list of drugs and medicines had been published, to " permit the indulgence of individual pref- Selection of inst r u m e n t s for field ser- vice. 315 Field Surgeons. Field Surgeons. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Sterilized dressings, etc., will be supplied in small quantities only for post use. Their preparation is so simple and so well understood that they should be pre- pared as needed. Meteorological instruments will not, in future, accord- ing to the new Supply Table, be issued by the medical department. When required for use at designated posts, they will be obtained by application direct to the Chief of the Weather Bureau, Department of Agri- culture. As will appear further on, meteorological reports by medical officers are discontinued. It is not clear that this new rule is wise, and many medical officers will regret that they are deprived of their meteorological in- struments. In this country the army surgeon has been the pioneer in weather observations, which, for many years, have been taken by them at every military post and forwarded to the War Department when, of other observers, there were none on the unsettled frontier. The familiarity with hygrometric and temperature conditions thus acquired by the military surgeon accustomed him to see relations and connections between these conditions and certain coincident pathological conditions, and often much to the advantage of the patient and the community-an advantage not precisely to be defined sometimes, and therefore properly to be called immeas- urable. It is not to be denied that, for the community at large, the meteorological observations regularly taken by the skilled observers of the Agricultural Bureau will take the place of those formerly taken by the military sur- geon. Still, it woidd seem that it might be to the ad- vantage of all concerned, were medical officers to con- tinue to make such observations regularly at their hospitals. No list of medical books for issue is included in the present Supply Table, and the reason given therefor is that, owing to the rapid advances in medicine, a large part of any fixed literature soon becomes obsolete. To a certain extent this is true, but the truth is only on the surface. The Table further provides that such new books as may be selected by the Surgeon-General will be furnished without requisition, and nothing is said con- cerning the issue of any other books than those so selected. This provision seems also unwise. In the first place, there are a certain proportion of books on medicine and surgery published that are standard, and that every med- ical man feels the need of, and this independently of their selection by any one man. In the second place, a large number of medical men have well-defined and consid- ered preferences for certain authors and certain books. Of these books none other will take the place, and it is hard to see why these preferences should be ignored, or how any Surgeon-General or other man could know them. It is to be hoped that ere long this regulation may be changed, and a list of such books be published for issue as will meet the general consensus of the military sur- geons, for whose study and information the books are issued. It is important that the military surgeon of the Na- tional Guard and Militia, as well as of the Regular Army, should know precisely what tools will be pre- sented to him to do his Work with, both in field and gar- rison. The new Supply Table divides the supplies under the following headings: Some notice is now required of some of those articles included in Class 4. 1. Dispensing set (bottles and jars). 2. Apparatus, spray - producing, (for petrolatum). 3. Case, aspirating. 4. " capital operating, No. 1. 5. " capital operating, No. 2. 6. " eye and ear. 7. " field operating. 8. " genito-urethral. 9. " urethal. 10. " minor operating. 11. " obstetrical and gyneco- logical. 12. " pocket personal. 13. " post-mortem. 14. " dissecting. 15. " stomach-pump. 16. " tooth-extracting. 17. Inhaler and vaporizer, 18. Microscope and accessories. 19. Surgical pump. 20. Syringe, hypodermic. 21. Thermo-cautery, Paquelin's. 22. Type-writer. 23. Vision-test set. 24. Amputating case. 25. Exsecting case. 26. General operating case. 27. Trephining case. 28. Chemical set with measuring apparatus, 29. Tool-chest. 30. Commode chest (No. 3). 31. Pack-saddle for medical and surgical chests. 32. Folding field furniture. No. 1. The dispensing set consists of a suitable and sufficient number of bottles and jars. Nos. 4 and 5. The contents of these cases vary but lit- tle from each other. No. 6 contains all that is needed, save by the ad- vanced specialist, for ordinary eye and ear surgery. Nos. 8 and 9. The latter does not differ much from the genito-urinary case, whose contents are given farther on. The large-sized sounds in the genito urinary case make it preferable to either 8 or 9 in certain cases where ure- thral dilatation is required. Nos. 13 and 14. The issue of No. 14 will cease when those now on hand are exhausted, as No. 13 can fully supply its place. No. 18. The Medical Department have issued the "Universal" and the " Investigator"-two different pat- terns of microscopes-manufactured by the Bausch & Lomb Optical Company. Beck's Popular Binocular, also, has been issued to a limited number. No. 28. This is supplied only in special cases where analytic and other chemical work is to be prosecuted. No. 29 is a small set of carpenter's tools. No. 32 comprises a few articles, such as folding chairs and tables, that may be easily packed and carried in the field. Concerning the other articles in the above list it seems unnecessary to say more than that they do not materially differ from other similar cases and instruments with which every surgeon is familiar. In regard to the list of cases, etc., which follows, it seems necessary to name the contents, either because they differ from the ordinary cases of the same name, or be- cause they possess peculiarities due to their preparation for use in the military service. 1. Apparatus, compressed air. 2. " restraint. 3. Case, dental. 4. " emergency. 5. " field. 6. " forceps, haemostatic. 7. " genito-urinary. 8. " pocket, aseptic. 9. " " post. 10. " of trial lenses. 11. Pouch, hospital corps. 12. Pouch, orderly. 13. Bacteriological set. 14. Medical chest, U. S. Army, No. 1. 15. Surgical chest, U. S. Army, No. 2. 16. Field-desk, No. 4. 17. Mess-chest. No. 5. 18. Food-chest, No. 6- 19. Reserve-chest, No. 7. 20. Ice machine. 21. Articles issued by the Quarter- master's Department. 22. Articles issued by the Ord- nance Department. Contents of foregoing: Apparatus, Compressed Air. Air-container, with gauge, num- ber 1 Force-pump, number 1 Tubing, thick rubber, silk cov- ered, connecting container with cut-off, exp., feet 8 Tubing, thick rubber, connect- ing container with force- pump, exp., feet 4 Davidson's sprays, in set, viz: Atomizer-tubes, h. r., number 3 Bottles with h. r. caps, number 3 Cut-off, metal, number 1 Stand for bottles, number.... 1 Tube connector, h. r., exp., number .. 1 Tube wires for cleaning, exp. 2 1. Medicines, expendable. 2. Disinfectants, expendable. 3. Hospital stores, expendable. 4. Surgical instruments and ap- pliances, not expendable. 5. Surgical dressings, etc., expend- able. 6. Stationery, expendable. 7. Bedding, clothing, etc., not ex- pendable. 8. Furniture, not expendable. 9. Dispensary accessories, not ex- pendable. 10. Kitchen and mess utensils, not expendable. 11. Miscellaneous, not expenda- ble. 12. Miscellaneous, expendable. Anklets, pair 1 Keys to lock buckles, number.. 5 Muff, leather, number 1 In wooden box, with handle and lock. Apparatus, Restraint. Strap, bed, as per circular, num- ber 1 Strap, waist, number 1 Wristlets, pair 1 316 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Field Surgeons. Field Surgeons. Case, Dental. (SUPPLEMENT.) Case. Pocket, Post. Burnishers (Nos. 3, 29, 36), num- ber 3 Chisels (Nos. 77, 135), number.. 2 Explorer (No. 5), number 1 Excavators (Nos. 10, 14. 16, 21, 41, 82, 86, 141,143, 145), num- ber .... 10 Files (2 each of Nos. 00, 0, 1) number . 6 Forceps, college, number 1 In small morocco case. Gutta-percha, exp., ounce 1 Handles for instruments, num- ber 6 Hone, number 1 Mirror, number 1 Paper, bibulous, (xp., sheets... 6 Scaler (No. 3), number 1 Spatula (No. 1), number 1 This name will be used when reference is made to the red morocco pocket-case with chamois cover issued during the past few years for post The list of contents is the same as that of the aseptic pocket-case, but the aneurism and exploring needles, knives, and tenaculum are de- tachable from the two hard-rubber or ivory handles. Some cases con- tain a combined needle and fenestrated artery forceps and a haemostatic forceps; others a plain artery and a dressing forceps. Case of Trial Lenses. Bausch & Lomb. Case, Emergency. Twenty pairs spherical convex lenses. Twenty pairs spherical concave lenses, both from 2 to 160 English inches focus (D. 20-0.25). Eleven cylindrical convex lenses. Eleven cylindrical concave lenses, both from 8.888 to 160 English inches focus (D. 4>50-0.25). Six prisms, 2°, 3°, 4°. 5°, 8°, 12°. Five disks, one white and one ground glass, one plain metal, one metal with hole in centre, and one metal with stenopaic slit. Four colored glasses-red, blue, green, and brown. One graduated trial frame, No. 3, double cell. One graduated trial frame, No. 2 (double cell, adjustable). In mahogany case, with lock and two keys. Tablets in half-ounce bottles : Acetanilide, gr 3 Acid boracic, gr 5 Acid tannic, gr 5 Alum, gr 5 Ammonium chloride, gr 5 Antipyrine, gr 5 Calomel, gr 2 Camphor, gr. 2, and opium, gr. 1 * Cathartic compound * Colchicum, fluid extract, in.. y Cough * Diarrhaia * Dover's powder, gr 5 Ergotine, gr 2 Ipecac, gr . 1 Morphine sulphate, gr Ji Nitro-glycerine, gr t/luo Opium, gr 1 Phenacetine, gr 5 Potassium bromide, gr 10 Potassium chlorate, gr 5 Quinine sulphate, gr 3 Sodium salicylate, gr 5 Sulphonal, gr 5 Tincture aconite root, m... . 2 Tincture digitalis, m 5 Tablets, hypodermic, in tubes. Apomorphine hydrochlorate,* Kr i/io Atropine sulphate, gr A/ioo Cocaine hydrochlorate, gr.. -t/8 Digitaline. gr Vino Ergotine,* gr i/J0 Morphine sulphate,* gr.... Ji ( Morphine sulphate,* gr. Ji ( Atropine sulphate,*.... >/] 00 Pilocarpine hydrochlorate, gr. Ji Quinine bimuriate, gr % Strychnine sulphate, gr '/so Queen. Twenty pairs spherical convex lenses. Twenty pairs spherical concave lenses, both from 2 to 48 inches focus. Eight cylindrical convex lenses. Eight cylindrical concave lenses, both from 9 to 72 inches focus. Five prisms, 2°. 3°, 4°. 5°, 8°. Three metal disks, one plain, one with hole in centre, and one with stenopaic slit. Four colored glasses-red, blue, green, and brown. One single lens-holder. One trial frame. In mahogany case, with lock and key. Syringe, hypodermic, not expendable, number I Thermometer, clinical. (See par. 44), number 1 * Tablets marked thus are in the hypodermic syringe case. Case, Fields Bistoury, curved, number 1 Catheter, silver, jointed, num- ber 1 Director and aneurism needle, number 1 Forceps, artery and needle, combined, number 1 Forceps, bone, number 1 Forceps, bullet, number 1 Forceps, dressing, number.... 1 Knife, amputating, blade, num- ber 1 Knife, amputating, handle, number 1 In wooden case, with leather pouch and sling strap, with buckle and snap hooks. Ligature silk, exp., cards 2 Needles, surgeon's, exp., num- ber 12 Probe (Nelaton's), number.... 1 Saw - blade, movable back, number 1 Saw-blade, handle, number... 1 Scalpel, number 1 Scissors, straight, number 1 Serre-fines (Langenbeck's), number 4 Tenaculum, number 1 Wax, exp., piece 1 Wire suture, silver, exp., loops. 3 Ammonia, aromatic spirits, exp., oz 1 Bandages, roller, exp., num- ber 4 Candle, in tin box, exp., num- ber 1 First-aid packet, exp., number. 1 Forceps, dressing,* number... 1 Iodoform sprinkler, number... 1 Jackknife, number 1 Lint, sublimated, exp., oz 2 Needles, medium, exp.,* paper. 1 Pouch, Hospital Corps. Petrolatum, carbolized, exp., °z X Pins, common, exp.,* paper... 1 Pins, safety, exp.,* number.. . 6 Plaster, adhesive, exp., spool.. 1 Scissors, medium,* number . . 1 Splints, wire, number 2 Sponges, small, in bag, exp., number 2 Thread, linen, exp.,* yds ... 20 Tourniquets, field, number.... 2 Wool, boracic, exp., oz 2 * Articles marked thus are contained in special case. Pouch, Orderly. + This is the case recently issued as " surgeon's field case. " Case, Forceps, Heemostatic. Ammonia, aromatic spirits, exp., oz 1 Bandages, roller, exp., number. 2 Basin, pus, number 1 Case, medicine, with tablets,* number 1 Catheter, elastic (No. 8), exp., number 1 Chloroform, exp., oz .. 4 First-aid packet, exp., number. 1 Glass, medicine, exp., number. 1 Lint, sublimated, exp., oz ... 2 Petrolatum, carbolized, exp., oz % Pins, common, exp., paper.... 1 Pins, safety, exp., number.... 6 Scissors, medium, number 1 Sponges, small, in bag, exp., number 2 Syringes, hypodermic, with tablets, number 1 Tags, diagnosis, exp., with pencil, book 1 Tourniquet, Esmarch, num- ber 1 Wool, boracic, exp., oz 2 Halsted's straight, number.... 1 Halsted's curved, number 1 Jones's angular, number 1 Jones's straight, number 1 In morocco case. Little's fenestrated, number... 1 'Tait's long grip, number 1 Tait's short grip, number 1 Thornton's T, number 1 Wood's [Pean's] large, number. .2 Wood's [Pean's] small, number. 2 Case, Genito-Urinary. Bistoury for meatus (Otis's), number 1 Bougies A bottle (Otis's), metal, nickel-plated, Nos. 8 to 40, inclusive, number 33 Endoscopes (Otis's, h. r.), Nos. 22, 26, and 32, number 3 Gauge (Otis's) steel, number... 1 Guides (Otis's), whalebone, number 2 Sounds (Otis's), short beaked, steel, nickel-plated, Nos. 20 to 40, inclusive, number 21 In mahogany case. Urethrometer (Otis's), hinged, number...- 1 Urethrometer, rubber covers for, exp., number 12 Urethrotome. Maisonneuve's No. 8 (Otis's) gauge, with two blades, two filiform bou- gies and one extra tunnelled tip for whalebone guide, number 1 Urethrotome, dilating (Otis's), straight, with two blades, number 1 * The six half-ounce bottles in this case contains the following tablets : Acetanilide, gr 3 Antiseptic Compound cathartic Cough Diarrhoea Quinine, gr 3 The following articles constitute the Bacteriological Set, which will be issued in special cases : Bacteriological Set. Apparatus : Apparatus, filling, and stand, number 1 Bath, water, copper, num- ber 1 Bath, tripod for, number ... 1 Burner (Koch's) number.... 1 Burner and regulator (Bun- sen), number 1 Burner, stand for, number.. 1 Dishes, double (Petri's), num- ber .. . 12 Filters (Pasteur), mounted in flask, number 2 Flasks (Erlenmeyer's), 8 oz., number....: 12 Flasks, graduated, 500 c.c., number 4 Apparatus : Flasks, graduated, with lip, 1,000 c.c., number 4 Incubator, lead-lined, 40 x 25 x 25. number 1 Micro-burner, 1 flame, num- ber 1 Paper, filtering, exp., q 1 Paper, filtering (Swedish), exp., q 1 Pipettes, 1 c.c., number .... 4 Pipettes, 2 c.c., number .... 4 Pipettes, 5 c.c., number .... 4 Pipettes, 10 c.c., number ... 2 Platinum wire, fine, 4-inch, pieces 3 Platinum wire, medium, 4- inch, pieces 3 Bistoury, curved, number 1 Bistoury, curved, probe-point- ed, number 1 Bistoury, straight, number. ... 1 Catheter, jointed, male and fe- male tips, number 1 Caustic holder, number 1 Forceps, needle and fenes- trated, artery, number 1 Forceps, long-jawed, number.. 1 Lancet, thumb, number 1 Ligature silk, exp., card 1 In leather ca-e, with metal clips and chamois cover. Case, Pocket, Aseptic. Needle, aneurism, number 1 Needle, aneurism, and grooved director, number 1 Needle, exploring, number.... 1 Needles, surgeon's, exp., num- ber 12 Probe (N61aton's), number.... 1 Probe, silver, number 1 Scalpel, number 1 Scissors, number 1 Tenaculum, number 1 Tenotome, number 1 Wax, exp., piece 1 Wire suture, silver, exp., loops. 3 317 Field Surgeons. Field Surgeons. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Bacteriological Set.- (Continued.) Medical Chest, C. S. Army, No. 1.-(Continued.) Apparatus : Platinum wire, heavy, 4-inch. pieces 3 Regulator, gas (Reichert's), number 1 Rods, glass, X'inch, exp., lb. X Sterilizer, hot-air, 23 X 30 X 20, number 1 Sterilizer, steam (Arnold's) number 1 Stoppers, solid rubber, as- sorted, exp., lb X Syringe, sterilizable (Koch's), 1 c.c., number.. 1 Test measures, footed, 5 c.c. number 1 Test measures, footed, 10 c.c., number 1 Test measures, footed, 100 c.c., number 1 Test measures, footed, 500, c.c , number 1 Test tubes, bath for, 1X6 inches, copper, with extra cover, number 1 Test tubes, thin glass, 6 X X inch bore, exp., number .. 300 Thermometer, 0-50° C., num- ber 1 Thermometer, 0-200° C., number 1 Apparatus : Tubing, glass, X, Vje, X- inch bore, exp., lbs 3 Tubing, rubber, exp., ft 12 Culture media and staining reagents : Agar-agar, lbs 2 Aniline oil, pure, lb 1 Bismarck brown, oz 1 Carmine, best, oz 1 Eosine, oz X Fuchsine, oz 1 Gelatine, best, lbs 2 Glycerine, c. p., lb 1 Htematoxylon, dr 2 Methyline blue, oz 1 Peptone (Witties's), lb X Saffranine, oz 1 Zylol, pure, lb 1 (These are expendable.) Bacteriological Technology (Sa- lomonsen), copy 1 Bakteriologische Diagnostik (Eisenberg), copy 1 Die Mikroorganismen (Fliigge), copy 1 Objective, oil immersion, '/i2 or 716 inch, number 1 Nose-piece, double or triple, number 1 Condenser (Abbe), number).... 1 Drawer No. 1.-(Continued.) Miscellaneous : ♦Syringe, hypodermic, number 1 Thermometer, clinical, num- ber 1 ♦Tongue-depressor, number 1 Drawer No. 2. Bandages, suspensory, num- ber 5 Flannel, red, yds 1 Jute, salicylated, in '/v'b. pkgs., pkgs 4 ♦Syringe, rubber, self-inject- ing, number 1 Drawer No. 3. Book, prescription, number.. 1 ♦Forceps, dressing,* number. 1 ♦index of Medicine (Carpen- • ter), copy 1 Plaster, blistering, yd 1 Plaster, mustard, yds 4 ♦Reagent case. § number.... 1 ♦Scissors, number 1 ♦Spatula, number 1 Spoon, tea, number 1 ♦Stethoscope, h. r., number.. 1 Contents of Drawers.-(Continued.) Drawer No. 3.- {Continued.) Syringes, p. g., in wooden case, number 3 Syringes, p., h. r., number... 5 Tags, diagnosis, 24 in book, book 1 ♦Towels, number 2 Drawer No. 4. Beef extract, in 4-oz. cans, lb. 1 Jute, salicylated, */4-)b. pkgs., Pkgs 6 Drawer No. 5. Bandages, roller, assorted, number 30 Cotton, absorbent, !/4-lb. pkgs., pkgs 4 Soap, castile, oz 8 Drawer No. 6. Candles, number 18 Flaxseed meal, lbs 2 Drawer No. 7. ♦Cupping tins, number 4 Gauze. sublimated, 1-yd. pkgs., pkgs 3 Lint, absorbent, 1 /4-lb. pkgs., pkgs 4 ♦Scarificator, number 1 With list of contents stamped on morocco pad which is carried, re- versed, under the cover of chest. + The contents of tubes of hypodermic tablets hereafter issued to re- place those expended should be placed in the screw-cap bottles. J For the convenient removal of cotton from tablet bottles. § Consisting of 1 tube citric acid ; 1 medicine-dropper : blue litmus paper ; 1 tube potassium ferrocyanide ; 1 tube sugar-test powder; 1 test tube; *1 urinometer. With circular of directions. The contents of the medical and surgical chests are expendable with the exception of those to which an asterisk is prefixed. Medical Chest, V. S. Army, No. 1. Contents of Tray. Left of tray-4-oz. bottles : Acetanilide, tablets, gr 3 Camphorand opium, tablets .. Cathartic compound, tablets .. Cathartic compound, veg., tablets Copaiba compound, tablets.. Cough, tablets Diarrhoea, tablets Dover's powder, tablets, gr.. 5 Liniment, tablets, gr 20 Potassium bromide, tablets, gr 10 Quinine sulphate, tablets, gr. 3 Sodium bicarbonate, tablets, gr 5 Sodium salicylate, tablets, gr. 5 Magnesium sulphate, oz.... 4 (And two empty bottles.) Back of tray-8 and 16 oz. bottles : Alcohol, oz 16 Ammonia, stronger water, oz. 8 Brandy, oz 16 Chloroform, oz 8 Ether, oz 16 Oil, castor, oz 8 Turpentine, oz 8 Whiskey, oz 16 Stoppers, rubber, for above, number 10 Centre of tray : Cotton-wool... q.s. Envelopes, small, for tablets, number 100 Graduates, glass, 2-oz., num- ber..., 1 Graduates, glass, minim, number 1 Labels for vials, number.... 50 ♦Links, split, for pack sad- dle, number 4 Ointment boxes, in nests of three, nests 4 ♦Pocket stove, number 1 Vials, 2-oz.. number 10 Front of tray-X-°z- bottles: Acid, arsenious, tablets, gr.. >/40 Alterative, tablets Capsicum, tablets, gr X Colchicum, fl. ext., tablets, m X Croton-oil, tablets, m 1/J0 Ergotine, tablets, gr 2 Iodine, oz X Nitro-glycerine, tablets, gr..1/100 Podophyllin, tablets, gr X Santonin, tablets, gr X Silver nitrate, fused, oz X Tr. digitalis, tablets, m 5 Tonic, tablets Right of tray-2-oz. bottles : Acid boracic, tablets, gr .... 5 Acid tannic, tablets, gr 5 Alum, tablets, gr 5 Ammonium chloride, tablets, gr 5 Antipyrin, tablets, gr 5 Bismuth subnitrate, tablets, gr 5 Blue mass, tablets, gr 5 Calomel, tablets, gr 2 Chloral, tablets, gr... 5 Ipecac, tablets, gr 1 Lead acetate, tablets, gr.... 3 Morphine sulphate, tablets, gr X Opium, tablets, gr 1 Peptic, tablets Phenacetine, tablets, gr 5 Potassium chlorate, tablets, gr 5 Potassium iodide, tablets, gr. 5 Salol, tablets, gr 5 Tr. aconite root, tablets, m.. 2 Zinc sulphate, tablets, gr... 5 Surgical Chest, U. S. Army, No. 2. Contents of Tray. 4-oz. Bottles : Acid boracic, tablets, gr. 5, bott 1 Antiseptic tablets, botts 2 Compound cathartic tablets, bott 1 Opium, tablets, gr. 1. bott... 1 Potassium bromide tablets, gr. 10, bott 1 ♦Bucket, folding, canvas, num- ber 1 ♦Catheters, flexible, number ... 1 Dressing paper, roll 1 Ether, lb 1 Felt for splints, pieces 2 ♦Links, split, for pack saddle number 4 Muslin, yds 3 8-oz. Bottles : Carbolic acid, pure, bott 1 Chloroform, botts 2 Glycerine, bott 1 Laudanum, bott 1 Whiskey, botts 2 Stoppers, rubber, for above, number 10 Petrolatum, lb 1 ♦Pocket case, aseptic, num- ber 1 ♦Pus-basin, number 1 ♦Razor, number 1 ♦Razor-strop, number 1 ♦Towels, number 2 Contents of Drawers. Drawer No. 1. Bandage, rubber, number.... 1 Brush, nail, number 1 Gauze, sublimated, yds 2 Goggles, number 2 ♦Iodoform sprinkler, num- ber 1 Ligature, catgut, carbolized, spools 3 Ligature silk, cards 5 Needle, thread, etc., in case, case 1 Pencil, indelible, leads for, number 3 Pins, common, paper 1 Pins, safety, assorted, doz... 4 Plaster, Isinglass, yds 10 ♦Speculum for ear and nose, number 1 Tape, piece 1 ♦Tape measure, number 1 ♦Tourniquet, Esmarch's, number 1 Drawer No. 2. *C a se, tooth-extracting,t number 1 Cotton, absorbent, pkgs 2 Drainage-tubes, rubber, yds.. 3 Plaster, adhesive, 1-in., spools 4 Plaster, adhesive, 2-in., spool. 1 Sponges in bags, bags 2 ♦Syringe, fountain, num- ber 1 Drawer No. 3. ' Bandages, suspensory, num- ber 2 Beef extract, in 1-lb. can, can, 1 ♦Brush, shaving, number ... 1 Cotton, absorbent, pkgs 2 Medicine measuring glass, number 1 Minim measuring glass, num- ber 1 Needle, sail, number 1 Needle, upholsterer's, number 1 ♦Pencil, indelible, number .. 1 ♦Scissors, number 1 ♦Surgery, Operative, copy... 1 Syringe, p. h. r., number. 2 Tags, diagnosis, 24 in book, book 1 ♦Tool, universal, number ... 1 Drawer No. 4. Bandages, flannel, number... 4 Bandages, roller, number.... 6 ♦Emergency case, complete, number 1 Drawer No. 5. Gauze, sublimated, yds 4 Jute, salicylated, in '/^Ib. pkgs., pkgs 6 ♦Lantern, small, number... 1 Soap, castile, ozs 8 Drawer No. 6. Bandages, roller, assorted, doz 4 Contents of Drawers. Drawer No. 1. Hypodermic tablets : t Apomorphine hydrochlo- rate, gr. ,/i0, bott 1 Atropine sulphate, gr. '/mo- bott 1 Cocaine hydrochlorate, gr. */«, bott 1 Ergotine, gr. Vie, bott.... 1 Morphine sulphate, gr. */s, bott t 1 Pilocarpine hydrochlorate, gr. Ve, bott 1 Quinine bimuriate, gr. Vj, bott 1 Strychnine sulphate, gr. bott,....... 1 Ophthalmic disks: Atropine sulphate, gr. Vboo, 50 in box, box 1 Eserine sulphate, gr. V2000, 50 in box, box 1 Miscellaneous ; ♦Caustic holder, rubber, number 1 ♦Corkscrew, folding, num- ber 1 Medicine-droppers, number. 2 ♦Pencil, indelible, num- ber 1 Pencil, indelible, leads for, number.... 6 Pencils, camel's-hair, num- ber 12 With list of contents stamped on morocco pad, which is carried, re- versed, under the cover of the chest. + This tooth-extracting case consists of: Case, leather, rolling, 1 ; lancet, gum, 1; elevator, 1 ; forceps, " half-curved root," 1; forceps, " lower wisdom," 1 ; forceps, " wisdom," 1. 318 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Field Surgeons, Field Surgeons. Field Desk, No. 4. Tins for the following articles : Beans. Butter. Coffee. With the exception of books and inkstands, the contents of this desk are expendable. Salt and pepper. Sugar (2 tins). Tea. Books: Army Regulations, copy 1 Epitome of Tripier's Manual, Greenleaf's, copy 1 Handbook for the Hospital Corps, Smart, copy 1 Information slip book. copy.. 1 Manual of Drill of Hospital Corps, copy 1 Morning Report. H o s p it a 1 Corps, copy 1 Morning Report, sick and wounded, copy 1 Order and letter book. copy... 1 Standard Supply Table, copy. 1 Transfer book, copy 1 Stationery : Book, blank, 8vo, number.... 1 Elastic bands, assorted, gross '/j Envelopes, official, large, num- ber 12 Envelopes, official, letter, number 50 Envelopes, official, note, num- ber 25 Eraser, steel, number 1 Ink, black, bott 2 Ink, red, bott 1 Inkstands, number 2 Mailing tubes, number 4 Pads, prescription, number... 4 Paper, blotting, sheets 4 Paper-fasteners, number 12 Paper, writing, legal cap, qr.. 1 Paper, writing, letter, qrs 2 Paper, writing, note, qr 1 Pencils, lead, number 4 Pens, steel, number 12 Pen-holders, number 2 Portfolio for Medical Depart- ment blanks, number 1 Blanks : Medical Department : Examination of recruits, monthly report, number 4 Hospital fund statement, number 4 Medical property, return of, number 2 Medical supplies, invoice of, single sheet, number 6 Medical supplies, receipt for, single sheet, number 6 Medical supplies, special requisition for, number... 8 Report of sick and wounded, number 12 Report of completed cases, number 12 Return of personnel, etc., H. C.. number 6 Quartermaster's Department: Clothing and equipage, quar- terly return of, number .... 2 Clothing and equipage, requi- sitions for, number 4 Fuel, forage, and straw, requi- sitions for, number 4 Invoices, abstract " E," num- ber 2 Receipts, abstract " E," num- ber 2 Requisitions, special (No. 48), number 6 Stores, quarterly return of, number 2 Subsistence Department: Ration returns, number 12 Ordnance Department: Invoices, number 2 Quarterly statements, number 2 Receipts, number 2 Adjutant-General's Department: Certificates of disability, num- ber 2 Descriptive lists, number 2 Discharges, number 2 Final statements, number.... 4 Furloughs, number 2 Inventory of effects of de- ceased soldiers, number.... 2 Muster and pay rolls, hospital, number 8 Outline figure cards, number.. 6 Physical examination of re- cruits. form for, number.... 6 Surgeon's certificate of disa- bility for officers, number.. 2 Reserve Chest, No. 7. The contents of this chest will be stated subsequently. Outfit of Schuehle Ice-Machine as per Latest Contract. Ice-machine, complete, Jacob Schuehle's patent, capacity 3,000 pounds in 24 hours, consists of : 1 double ammonia compressor. 1 steam-engine. 1 boiler, 20-horse power, complete, with feed-pump. 1 ammonia condenser. 1 3/16-inch boiler-steel freezing-tank, encased in 1-inch pine floor- ing, with the requisite number of ice-cans. 1 steam condenser, capacity sufficient to furnish in 24 hours distilled water for 3,000 pounds of ice. 1 brine-pump. 1 patent oil eliminator. 1 side-feed lubricator. 300 fire-brick. Bedplate, necessary pipes, gauges, valves, connections, etc. Anhydrous ammonia and lubricating oil sufficient to run the ma- chine for two years. In most cases additional or improved parts have been purchased for these machines, and this list can be considered as approximate only. The ammonia drum, or cylinder, is a container of the ammonia furnished by contract, and unless purchased from the ice fund does not form a part of the Schuehle machine, being returned when a fresh drum of ammonia is received. The Wood-Bailie machine, of which four are now in use, has an ammonia drum as part of the original machine. See par. 48 and Circular S. G. O., June 13, 1891. For convenient reference the following lists are ap- pended, although the articles are not issued by the Medi- cal Department: Ambulance. Ambulance, harness for. Axe. Clothing, uniforms, etc. Cooking utensils. Dippers. Flags.* Gas-fixtures. Hand-cart. Hatchet. Ladder. Lamps, bracket. Lamps, hanging. Issued by the Quartermaster's Department (see par. 51). Lanterns. Lockers. Piping for ranges and stoves. Range and fixtures. Shovel. Shelter for meteorological instru- ments. Spade. Stoves, heating. Tentage, etc. Travois. Wheelbarrow. Wood-saw. Mess Chest, No. 5. Basin, wash hand, agate ware, number 1 Boilers, double, agate ware, number 1 Bowls, soup, agate ware, num- ber 6 Box for salt, number 1 Box for pepper, number 1 Brush, scrubbing, exp., number. 1 Can-openers, exp., number 2 Cleaver, number 1 Cook-book. Army, number 1 Cups, coffee, agate ware, num- ber 6 Cups, large, agate ware, num- 1 ber 1 Dippers, agate ware, number... 1 Graters, nutmeg, number 1 Gridiron, number 1 Hatchet, number 1 Kettles, steel, nested, with covers, number 3 Knife, butcher, number 1 Knife and fork, carving, of each, number 1 Knife and saw, combined, num- ber. 1 Knives and forks, of each, num- ber 6 Ladles, agate ware, number.... 1 Lantern, candle, number 1 Matches, in waterproof case, exp., boxes 12 Meat-cutter, small, number 1 Meat-dishes, agate ware, num- ber 2 . Mill, coffee, number 1 Nails, assorted, exp., lbs 4 Pan, frying, steel, number 1 Pans, mess, agate ware, number 2 Pans, sauce, steel, tinned inside, with cover, number 1 Plates, dinner, agate ware, num- ber. 6 Pot, coffee, agate ware, num- ber 1 Pot, tea, agate ware, number... 1 Rope, '/4 inch, exp., feet 50 Sickle, number 1 Spoons, basting, agate ware, number 1 Spoons, table, number 6 Spoons, tea, number 0 Steel, number 1 Towels, crash, number 6 Tray, metal, japanned 1 Tumblers, agate ware, number. 6 Wire, exp., coil 1 * See A. R. 1848, as amended by G. O. 83,1880. Except guidons, these flags will rarely be issued. Issued by the Ordnance Department. Blanket bag. Blanket bag, shoulder straps, pair. Blanket bag, coat straps. Canteen. Canteen strap. Cup, tin. Fork. Haversack. Haversack strap. Knife. Knife, hospital corps. Knife, hospital corps, scabbard. Meat can. Revolver.* Rifle, Springfield, muzzle loading.! Shot-gun, Springfield.^ Shot-gun, reloading, outfit. § Spoon. Sword-belt for hospital steward. Sword-belt plate for hospital stew- ard. Sword frog for belt. Waist-belt. Waist-belt plate. ♦ Revolvers will be obtained from the Post Commander for service in an Indian country, when necessary. If it is impracticable to obtain them for temporary service in this way, they may be procured by requisition on the Chief Ordnance Officer of the Department.-Circular S. G. O., April 30, 1891. + The issue of two Springfield muzzle-loading rifles to each military post for company-bearers' drill is authorized.-Decision Acting Secretary of War. 1888. J " Upon requisition of the Post Surgeon (through the usual military channels), duly approved by the Surgeon-General, the Ordnance Depart- ment will issue, for use at posts west of the Mississippi River, a shot-gun with necessary appendages and ammunition for the use of members of the Hospital Corps."-Decision Chief of Ordnance. 1889. § The reloading outfit of the shot-gun consists of the following : The articles with * prefixed are expendable, and may be replaced by annual requisitions upon the Chief Ordnance Officer of the Department: Food Chest, No. 6. In this chest, as issued, considerable vacant space is left in order to allow latitude to each medical officer as to the exact character of the sup- plies he may wish to carry. The printed plan inside the cover of each gives the general arrangement. Tins labelled •'corn starch," "chocolate," and "arrow-root" are included, although not mentioned in the official list of contents, as it is thought that they may contain articles of more general use. Brush-wiper, number 1 Canister, tin, for powder, 2-lbs., number 1 Canister, tin, for powder, 5-lbs., number 1 ♦Cartridge primers, number. 1,000 ♦Cartridge shells, 20 gauge, number 50 Charger, adjustable, number... 1 ♦Cotton cloth, yard 1 ♦Cotton waste, lbs l'/4 Drift, number 1 Funnel, number 1 ♦Gun-wads, No. 18, pink edge, number 2,000 Packing-box, number 1 ♦Powder, musket, lbs 7 Priming tool (Frankford), num- ber 1 ♦Shot, No. 8, lbs 50 Beef extract or an equivalent prep- aration. Candles. Condensed milk, in original cans, 8 pounds. Soap. Vinegar, in 1-quart wicker-covered bottles, 2 bottles. Yeast powder, in */2-pound original cans. 319 Field Surgeons, Field Surgeons, REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Below follows the composition of the tablets, etc., which are referred to in the Supply Table. These amounts may be compared with the amounts in the ration of Moleschott, Pettenkofer and Voit, Ranke, and of the English Army, which amounts were not given, however, in the previous article in terms as below. The words tablets and pills are used synonymously throughout the Supply Table : Tablets, expendable. Alterative. Mercury protiodide, gr '/s Opium, gr Via Antiseptic : Mercury bichloride, gr 7.7 Ammonium chloride, gr.... 7.3 One tablet to one pint of water makes a 1 to 1,00(1 solution. Camphor and Opium: Camphor, gr 2 Opium, gr 1 Compound cathartic : Same as compound cathartic pill. Compound cathartic, vegetable : Ext. colocynth, compound, gr Vs Podophyllin, gr '/< Pulv. resin scammony, gr... '/a Pulv. aloes socotrine, gr.... 1V4 Pulv. cardamom, gr V9 Saponis, gr '/a Copaiba compound : Balsam copaiba, gr I'/a Resin guaiac, gr 3/8 Ironcitrate.gr % Oleo-resin cubebs, gr 3/s Cough : Extractlicorice.gr */>o Camphor, gr Vas Acid benzoic, gr 1/.ii Oil anise, gr '/jg Opium, gr >/25 Tartar emetic, gr Vbo Each tablet is the practical equiv- alent of one teaspoonful of brown mixture. Diarrhoea : Calomel, gr >/a Morphine sulphate '/16 Capsicum, gr '/io Ipecac, gr '/aa Camphor, gr Vis Liniment: Camphor, gr O'/a Capsicum, gr 6'/a Ext. belladonna, alcoholic, gr 6Va Dissolve one tablet in one ounce of alcohol. Peptic : Pepsin, gr 2 Pancreatin, gr 2 Bismuth subnitrate, gr 2 Tonic : Iron pyrophosphate, gr 1 Quinine sulphate, gr '/a Strychnine sulphate, gr '/eu Albumi- nates. Fatty material. Carbo- hydrates. Ounces. Ounces. Ounces. Moleschott 4.587 2.964 14.247 Pettenkofer and Voit 4.83 4.12 12.40 Ranke 3.52 3.52 8.46 English Army 8.736 1.44 12.71 If we contrast these figures, it appears that the heaviest ration of the United States Army, increased by the vegetable ration, exceeds in albumi- nates and carbo-hydrates each of the four rations given in the last table, but is ex- ceeded by each of them in fats, except the ration of the English Army, the fat in whose ration is slightly less. The salt beef ration of the United States Army, also so increased, is in a trifling degree less than that of Petten- kofer and Voil in albuminates, but exceeds all the others in this ingredient ; it is less than all the others in fats, but much larger in carbo-hydrates. The ration given as typical for the United States Army, increased by the vegetable allowance, is much larger than any of the others in albuminates, fats, and carbo- hydrates. In a paper on the best ration for the soldier, published in the " Transactions of the Ninth International Medical Congress," is found a table giving the mean proportion of the components of seven different rations, which mean is as follows: Albuminates, 4.37 ounces ; fatty material, 2.74 ounces ; carbo-hydrates, 13.4 ounces. Let us compare with these amounts, the amounts given for what I have termed the typical ration of the United States Army, when increased by one pound of vegetables. The com- position of this ration thus increased is as follows : Com pari- so n with other r a- tions ; Unit- ed States Ar- my ration in- creased b y addition of one pound potatoes. Diet.-To the ration of the soldier as described, page 120, third volume of this Handbook, Con- gress in 1890 added one pound of vegetables, which by .decision of the War Department were to be issued as : 1, One hundred per cent, in fresh potatoes ; or, 2, eighty per cent, in fresh potatoes, and twenty per cent, in fresh onions ; or, 3, seventy per cent, in fresh potatoes, and thirty per cent, in canned toma- toes, or in such fresh vegetables as can be procured in the vicinity of the station, or which it may be practicable to furnish from a distance in wholesome conditions ; such as onions, cabbages, beets, turnips, carrots, and squash. It was further directed that in preparing requisitions for these things, the preferences of the troops will be consid- ered as far as climate, resources of the vicinity, transpor- tation facilities, and season may render practicable. Under these instructions the food supplied the soldier has been increased by the amount of one pound of vege- tables per man, and the Subsistence Department, in issu- ing, has been guided by the expressed preferences of the troops as to what particular vegetables were supplied, by far the greater proportion being Irish potatoes. The Irish potato is one of the most abundant of the vegetable foods raised in this country, and it is also one that can be readily transported, and with small danger of injury or loss, as compared with most other vegetables. It is, therefore, to be presumed that it will be largely selected and supplied as food ; and concerning it as the vegetable component of the ration, I will principally make comment. According to the Tables found in Parke's " Hygiene," about three-fourths of the potato consists of water, and one- fifth of carbo-hydrates. One-tiftieth consists of albumin- ates ; one-sixth of one per cent, of fatty material; and one per cent, of salts ; so that one pound of potatoes added to the ration adds 0.32 oz. of albuminates ; 0.0256 of fatty ma- terial ; 3.36 oz. of carbo-hydrates, and 0.16 of salts. Add- ing these amounts to the ration given on page 121-2, Vol. III.,of the Handbook, these rations will foot up as follows: Vegetable ration. Albumi- nates. Fatty material. Carbo- hydrates. Meat, half beef Ounces. 1.245 Ounces. 0.6972 Ounces. Meat, half bacon 0.53 4.40 Bread, half flour Bread, half hard bread Beans ... 1.314 1.248 0.54 0.108 0.104 0.05 6.174 5.822 1.20 Sugar 2.316 Potatoes 0.32 0.0256 3.36 Total 5.197 5.3848 18.872 The Irish potato as vegetable ra- tion. The increase of albuminates in this ration (5.197 ounces) over the amount contained in the mean of several rations before given (4.37 ounces), equals 0.827 ounce, or nineteen per cent. The increase in the fatty matter (5.3848 ounces) over that of the mean ration as above (2.74 ounces), equals 2.6448 ounces, or ninety-six per cent., almost double. The increase in the carbo-hydrates (18.872 ounces) over the carbo-hydrates of the mean ration (13.4 ounces) equals 5.472 ounces, or forty per cent. Certainly there can be no doubt of the sufficiency of this last-named ration. Considering the figures of the ration called the " Largest ration of the United States Army in weight,'' and the "United States Army Salt Beef Ration," on page 121, Vol. III., Reference Handbook, we find that, when added to the pound of potatoes as above, both of these rations much exceed the " Mean Ration " in the amounts of albuminates and carbo-hydrates, but are less in fats. But the addition or substitution of bacon or salt pork, for fresh or salt meat in almost any proportion that would presumably, or probably, be issued, would bring up the fatty constituents, and still leave the albuminates and carbo-hydrates largely in excess. It is quite certain that in actual service the contingency can never occur when Composition of IT. S. Ration when Increased by One Pound Potatoes. Albumi- nates. Fatty material. Carbo- hydrates. Largest ration of U. S. Armv in Ounces. Ounces. Ounces. weight 5 966 1.684 19.296 U. S. Army salt beef ration 4.72117 1.2685 18.7512 Typical ration of U. S. Army ... 5.197 5.3848 18.872 320 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Field Surgeons. Field Surgeons. bacon or salt pork will be wanting as part of the ration, for any length of time. If, then, the experiments of all students and observers in regard to diet are worth anything whatever, if the experience of feeding armies and large bodies of men teaches aught worthy of reliance, it may be affirmed that the present ration of the United States soldier is larger than is neces- sary. Manifestly the sin of excess in the ra- tion is less to the disadvantage of the soldier than that of insufficiency ; but the same can- not be affirmed as to its advantage to the tax-payer. The first cost to the United States of a pound of pota- toes will not average less than a cent. This alone, to an army of one hundred thousand men, will equal $1,000 per day. To this must be added the cost of transporta- tion to and with the army, and the expenses due to loss. In time of war each of the above items of cost will be largely increased over time of peace, and the cost of trans- portation is one of the heaviest expenses of the campaign. Unless it can be shown that the supplying or the eating of unnecessary food possesses certain advantages not due to the final consumption of the food in the processes of nutrition, it may well be doubted whether the legislation which added to each ration one pound of vegetables was wise legislation, even though liberal to the soldier. Certainly, those who have accompanied an army through a campaign will appreciate the immense addi- tional labor and expense which will be entailed on the Quartermaster and Subsistence Departments if the at- tempt be made to carry out the law in time of war and supply the vegetables which have been added to the ra- tion. The title of the act giving a vegetable ration is, " An act to prevent desertions from the army and for other purposes." The foregoing considerations are entirely independent of the question of the desirability and necessity of fresh vegetables as an article of diet. This desirability is undis- puted. On p. 103, Vol. III., Reference Handbook, it is stated that the "surgeon must insist that fresh vegeta- bles be supplied." Although it is said that people have lived, and do live, on animal food alone, or animal food with the addition of food of vegetable origin, but not ordinarily considered as fresh vegetables (flour, etc.), it will not here be denied that green, fresh vegetables are, if not necessary, cer- tainly very desirable as an article of diet. Vegetarians claim that they live on vegetable food, to the exclusion of animal food, with the maintenance of better health than belongs to the consumer of animal food; and green vegetables are beyond doubt often a luxury. But in the study of the soldier's ration, economy is an- important consideration, certainly when its practice can- not be shown to conflict with aught more important. The nutritive power of vegetables is small in propor- tion to weight, and the large amount of water they con- tain (which in the cabbage is nine-tenths or over) will always interfere with their general use as a constituent of the ration of an army in the field. In time of peace, by company and post gardens, and by the barter' or exchange of other portions of the sol- dier's ration, as has been heretofore shown in this Hand- book, the soldier may always have, and does in general have, an abundance of vegetables. In time of war I believe the regular daily issue of a fresh vegetable ration to be almost, if not quite, imprac- ticable ; but vegetables may and must be purchased, and issued from time to time, on the recommendation of the medical authorities, as the circumstances may favor their procurement, or as the need may become impera- tive. This issue should be a special issue to replace other articles of food or in addition thereto. Drink.-Not much on the subject of drink need be added to what was said on that subject, p. 123, Vol. III. of this Handbook. It is proper to em- phasize the importance of boiling as a puri- fying process for suspected water. A temper- ature of 212° F. and upward will destroy the life of the (SUPPLEMENT.; bacillus of cholera and of microbes generally, and this mode of purification is cheap and handy. . Ice Machines.-Since the Reference Handbook was published the Medical Department has supplied ice machines to such Southern posts as were unable to ob tain, by purchase, ice for the use of the sick. The Surgeon-General has announced that these ma- chines "are furnished by the Medical Department to supply ice for the use of the sick in hospital, and not for the comfort or convenience of the garrison at large," and this because such supply for the well belongs to an- other supply department. Under the regulations issued by the Surgeon-General June 13, 1891, the ice machines are operated under the immediate direction of medical officers. After the sick were furnished with the needed ice the surplus manufactured was sold to officers, soldiers, and civilians at prices fixed by the officer in charge, with the approval of the Medical Director, these prices being sufficiently high to create a fund from which were met the expenses of the ice man- ufacture, viz., such expenses as repairs, fuel, oil, am- monia and salt, wages, freight on supplies, etc. No action of the Medical Bureau has been more grate- ful or beneficent to the army than this issue of ice ma- chines and the supply of ice which it has been found practicable to issue to the garrisons at an expense gener- ally of half a cent or less per pound. A description of the ice machine used will be found under the heading Supply Table in this paper. Clothing.-The soldier's clothing allowance, accord- ing to the latest orders of the War Department, is as fol- lows : P re s e n t United States Army ration larger than needed for purposes of n u t r i - tion. Ice supply. Allowance of Clothing. Articles. Year. Total for five years. First. Second. Third. Fourth. fa 1st 6 mos. 2d fi mos. Helmets and trimmings, complete, number 1 1 2 Forage-cap and trimmings, number. 1 1 1 1 1 1 fi Campaign hats, number 1 1 1 1 1 5 Uniform coats, number . 1 1 2 Trousers, pairs 2 1 2 2 2 1 10 Canvas fatigue coat, number 1 1 1 1 1 5 Canvas fatigue trousers, pairs 1 1 1 1 1 5 Linen collars, number 4 2 6 6 6 fi 30 Dark-blue flannel shirts, number .. 2 1 2 2 2 2 11 Knit undershirts, number 2 1 3 3 3 3 15 Drawers, pairs 2 1 3 3 3 3 15 Boots, for mounted troops, pairs... 1 1 1 3 Shoes, for mounted troops. pairs... 1 1 1 2 1 1 7 Shoes, for foot troops, pairs 2 1 2 3 2 2 12 Barrack shoes, pairs 1 1 1 1 1 5 Stockings, woollen, pairs 3 1 4 4 4 4 20 Stockings, cotton, pairs 3 3 fi fi fi 30 Blouses, number 1 1 1 1 1 5 Overcoats, number 1 1 Chevrons, cloth, pairs 2 1 1 1 1 fi Chevrons, gold lace, pairs 1 1 2 Stripes for trousers, pairs 2 1 2 2 2 1 10 Stable-frock, for mounted troops, number 1 1 2 Overalls, for engineers and mount- ed troops, pairs 1 1 1 1 1 5 Blankets, woollen, number 1 1 2 Berlin gloves, for mounted troops, 2 2 4 4 4 4 20 Berlin gloves, for foot troops, pairs. 4 4 8 8 8 8 40 Leather gauntlets, pairs 1 1 1 3 Suspenders, pairs 1 1 1 1 1 5 Band musicians authorized by law are entitled to mounted helmets, and, in addition to the forego- ing. to the following articles : Troupers, white, pairs 2 1 2 2 2 1 10 Aiguillette and shoulder - knots, number 1 1 2 Music pouch 1 1 Vegetables needed a s food. Boiling to purify water. To this allowance must be added canvas mittens and canvas lined caps, and also leggings and cravats. Cork helmets are supplied to troops, in the first and 321 Field Surgeons. Field Surgeons. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. third years of their enlistment, in lieu of the campaign hats. Arctic overshoes and woollen mittens, when issued, will be charged to the enlisted men at cost prices. The necessity for their issue must, however, be certified to by the department commanders. The allowance for these articles is as follows : Arctic overshoes, one pair in each of the first and third years of enlistment, and woollen mittens, two pairs per annum. Overcoats made of fur or other suitable material will be issued and accounted for in the manner prescribed by paragraph 1301 of the regulations. One fur cap and one pair of fur gauntlets will also be issued annually to all enlisted men in the Departments of the Platte, Dakota, and the Columbia, and in other de- partments, when specially authorized by the department commander, at the prices established for such articles in the annual price-list. Rubber blankets and ponchos may be issued gratui- tously at the rate of one per annum to each enlisted man, until the stock on hand shall have become exhausted. Enlisted men may draw, whenever in the opinion of the proper officer it may be necessary, during their first year's enlistment, the two woollen blankets to which they are entitled during their service of five years. The full amount of the allowance as given in the above table the soldier is not obliged to draw, and of what he does not draw, the money value is placed to his credit, and paid to him in money at date of his discharge from the ser- vice or at other stated settlement. Reports and Records Required of the Military Surgeon.-Of the reports and records named, page 128, Vol. III., Reference Hand- book, the case, diet, and prescription book, No. 10; the register of patient's effects, No. 12 ; and meteoro- logical reports, No. 13, are no longer required of the surgeon. Tlie form called " Consolidated Reports of the Medical Department," No. 18, has been done away with and a new form substituted, called a " Report of Sick and Wounded." In certain respects the latter is an improve- ment upon the former, but retains some of its defects. To the author it seems that the effort is made to com- prise. in this report too much, and it is to be hoped that some day a simpler form of re- port of sick and wounded may be adopted for the army. The writer of this paper has had occasion during the past thirty years to pay very much attention to this especial report. Since the remarks were printed concerning said re- port (page 127, Vol. III., of this Handbook), a paper was read on the subject before the Section of Military and Naval Medicine and Surgery of the Ninth Interna- tional Medical Congress, and published in its "Trans- actions." For more detailed arguments on the subject the reader is referred to that paper. The report of sick and wounded of an army should be as brief as possible, consistently with its useful purpose, because the officer making it must be often, if not al- ways, without the clerical help or the time needful to prepare an elaborate paper. It is an army report, and not a paper specially pre- pared for the Census Bureau, for the Pension Bureau, or the general statistician, to the aid of all of whom, how- ever, it should come, but solely within its own sphere ; not pretending to give information so special in its kind as to be almost certainly inaccurate and unreliable when reported by any other than a skilled observer or student of the specialty. No one can well do amateur work which interferes with his proper legitimate work if he is interested in that legitimate work and if that work occupies his time. Accordingly it seems wisest to require from the mili- tary surgeon, as part of his military duty, such reports only as grow out of and belong to his place as a military surgeon. The following propositions, which were adopted, and (SUPPLEMENT.) reported by the Section of Military and Naval Medicine and Surgery of the Ninth International Medical Con- gress to the Congress itself are here again enumerated : 1. The main object of a report of sick and wounded for an army is to give the diseases and injuries, their number, their proportion occurring among the troops and the results thereof, all other objects being inci- dental and secondary, or better effected in certain cases by special reports. 2. For purposes of convenience this report should be monthly. 3. It is desirable that, for comparison and study, the form of this report should be uniform for all armies and as simple as maybe. 4. No nosological arrangement can now be made which commends itself to everyone, and which all will agree on as the only one compatible with scientific knowledge ; and, therefore, that nomenclature and arrangement of diseases should be adopted which is most convenient for use in the exigencies of military service. 5. In view of the great desirability of an uniform " report of sick and wounded " by all armies, and in the absence of any other form better fitted to fulfil the ends for which this report is made, this Section recommends the adoption of the subjoined " form " in the medical departments of all armies. The "form" which followed contained the date, place, and mean strength ; a list of diseases, by name, occurring, with their result, cure, death, etc. ; a report of vaccinations ; of discharges on certificate of surgeon, and of deaths, by name ; and " directions" how to make out the report. The nosological table recommended was that of the Prussian army, arranged in fourteen divisions, as fol- lows : First Division.-General diseases (poisoning). Second Division.-Diseases of the nervous system. Third Division.-Diseases of respiratory organs. Fourth Division.-Diseases of circulatory organs. Fifth Division.-Diseases of organs of assimilation. Sixth Division.-Diseases of urinary and sexual organs (excluding venereal). Seventh Division.-Venereal diseases. Eighth Division.-Diseases of the eye. Ninth Division.-Diseases of the ear. Tenth Division.-Diseases of integument. Eleventh Division.-Diseases of organs of locomotion. Twelfth Division.-Mechanical injuries. Thirteenth Division.-Other diseases, including in the order here named, self-mutilation, attempted suicide, sim- ulation, general debility of body, debility from old age. Fourteenth Division.-Under observation. Concerning this form the author remarked that "it is not claimed that this ' form ' is perfect, but it is simple, compact, easily understood, easier to make out than any form known to the writer, and contains all the data neces- sary to determine the proportion of cases of disease or injury occurring in an army, and the results thereof, be- sides all the data needed to enable proper conclusions to be reached in regard to pensionsand similar allowances." I add that no questions regarding doubtful pathology are involved, and that careful reconsideration leads me to here urge this form upon the favorable consideration of the military surgeon. In addition to the new Report of Sick and Wounded a few stated reports and records have also been added, to wit: a Monthly Statement of Ice Fund from surgeons in charge of ice machines (to the Surgeon-General); a Semi-annual Return of Record Books (to the Surgeon- General); a Morning Report Book of the Hospital Corps (to the commanding officer); a Monthly Return of Hos- pital Corps (to the Surgeon-General); a Clothing Ac- count Book of the Hospital Corps; a Descriptive Book of the Hospital Corps. The last four books and reports have been rendered necessary by the organization of a separate Hospital Corps, under the command of the surgeon. Concerning this corps and its necessity to the field-surgeon further remarks will be made. The mon- ey value of clothing not drawn placed to s o 1 <1 i e r s' credit. Report of sick and wounded. 322 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Field Surgeons. Field Surgeons. Hospital Corps.-On pages 132 to 139 inclusive, Vol. III., Reference Handbook, under the heading " Care and Removal of the Wounded in Battle," a somewhat ex- tended notice is given of the ambulance corps of various armies, including that of the United States Army. The ambulance corps of the United States Army as described, loc. cit., had done good service during the great War of the Rebellion, and its operations were a great improvement upon the modes of caring for the wounded and sick in the field in previous wars. Still it had manifest imperfections, the most vital being that it really only existed during war, and that its organiza- tion only included, besides its officers, the litter-bearers and drivers. The most progressive military surgeons of our army, and those whom they could influence to co-operate, did not fail, during the years following the war, to represent to those whom they thought could and would aid them, the necessity of a more comprehensive and permanent organization of a body of men whose sole duty should be the care of the sick and wounded at all tinies, and particularly their first aid when wounded, and their transportation after injury. Finally, March 1, 1887, an act passed by Congress was apprbved by the President and became a law. This law establishing the Hospital Corps is the most important legislation for the Medical Department which has taken place since the Medical Department was re- organized. Upon page 222, Vol. VII., Reference Handbook, appears quite a full article by Pilcher upon the transportation of the disabled on land. This article is mostly devoted to the handling of the wounded in a systematic manner, and the drill of the organized body by whom the wounded must be handled. Incidentally a few words are said concerning the Hospital Corps, in- dependent of its drill, and a few words only, and it seems proper to here treat more fully of that corps, its organization, and its duties other than that of transport- ing the wounded. The law organizing the Hospital Corps, is textually as follows: An act to organize the Hospital Corps of the Army of the United States, to define its duty and fix its pay. Be it enacted by the Senate and House of Representatives of the United States of America in Congress assembled. That the Hospital Corps of the United States Army shall consist of hospital stewards, acting hospital stew- ards, and privates ; and all necessary hospital services in garrison, camp, or field (including ambulance service) shall be performed by the members thereof, who shall be regularly enlisted in the military service ; said corps shall be permanently attached to the Medical Department, and shall not be included in the effective strength of the army nor counted as a part of the enlisted force provided by law. Sec. 2. That the Secretary of War is empowered to appoint as many hospital stewards as, in his judgment, the service may require; but not more than one hospital steward shall be stationed at any post or place without special authority of the Secretary of War. Sec. 3. That the pay of hospital stewards shall be forty- five dollars per month, with the increase on account of length of service as is now or may hereafter be allowed by law to other enlisted men. They shall have rank with ordnance-sergeants and be entitled to all the allow- ances appertaining to that grade. Sec. 4. That no person shall be appointed a hospital steward unless he shall have passed a satisfactory exami- nation before a board of one or more medical officers as to his qualifications for the position, and demonstrated his fitness therefor by service of not less than twelve months as acting hospital steward; and no person shall be desig- nated for such examination except by written authority of the Surgeon-General. Sec. 5. That the Secretary of War is empowered to enlist, or cause to be enlisted, as many privates of the Hospital Corps as the service may require, and to limit or fix the number, and make such regulations for their government as may be necessary; and any enlisted man in the army shall be eligible for transfer to the Hospital Corps as a private. They shall perform duty as ward- (SUPPLEMENT.) masters, cooks, nurses and attendants in hospitals, and as stretcher-bearers, litter-bearers, and ambulance attend- ants in the field, and such other duties as may by proper authority be required of them. Sec. 6. That the pay of privates of the Hospital Corps shall be thirteen dollars per month, with the increase on account of length of service as is now or may hereafter be allowed by law to other enlisted men; they shall be entitled to the same allowances as a corporal of the arm of service with which on duty. Sec. 7. That privates of the Hospital Corps may be detailed as acting hospital stewards by the Secretary of War, upon the recommendation of the Surgeon-General, whenever the necessities of the service require it; and while so detailed their pay shall be twenty-five dollars per month, with increase as above stated. Acting hos- pital stewards, when educated in the duties of the posi- tion, may be eligible for examination for appointment as hospital stewards as above provided. Sec. 8. That all acts and parts of acts in so far as they contravene the provisions of this act are hereby repealed. This law remains unchanged to the present time, with the one exception that the pay of the private, Hospital Corps, has been increased from thirteen dollars to eigh- teen dollars per month, because it was found difficult to procure for the first named pay men of the acquirements demanded. Immediately after the passage of the law it became necessary to establish the regulations provided for in its fifth paragraph, and the Secretary of War or- dered for that purpose a Board consisting of the late Adjutant-General of the army, and three army medical officers, of whom the writer was the senior. The Board, after a month's consideration, reported a system of regulations which were approved by the Secre- tary of War, and published to the army. They were incorporated in the new Army Regulations with such changes as from time to time were demanded to facilitate their operation. Condensed, the points of these regulations important to be here made known are as follows : Privates of the Hospital Corps may be enlisted from civilians, or transferred from soldiers of the line of the army. The latter will be the chief source of supply. The transfer will be made on the application of the post-surgeon, which ap- plication must show : 1st, That the man must desire to transfer ; 2d, that he has served already one year or more ; 3d, that he is not married ; 4th, his age, and if over forty, his special qualifications as nurse or cook ; 5th, his character ; 6th, his physical condition ; 7th, his habits as to temperance ; 8th, whether for existing or prospective vacancy ; 9th, the date of expiration of his present enlistment; 10th, his abil- ity to read and write ; 11th, his general intelligence and aptitude for the duties of a private of the Hospital Corps. Neither artificers nor musicians must be recommended for transfer. In time of peace recruits for the Hospital Corps who have not previously received at least one year's military instruction in the army shall be attached to a company stationed at Fort Monroe, Virginia; Fort Leavenworth, Kansas ; or Fort Riley, Kansas, and shall perform all the duties and be subject to all the drill and discipline re- quired of privates in the organizations to which they are attached. After one year's service in the line they may be assigned to duty in the Hospital Corps. The number of privates so enlisted and undergoing instruction shall at no time exceed ten, unless otherwise specially author- ized by the Secretary of War. Privates who have served one year or more in the Hos- pital Corps, afid have displayed particular merit, will be recommended to the Surgeon-General for promotion, by the senior medical officer of the command ; from those thus recom- mended acting hospital stewards will be ap- pointed. The candidate for promotion as acting hospital steward must pass a satisfac- tory examination as to his physical condition, moral character, and general aptitude, and in the general prin- Qualifica- tions neces- sary for pri- vates of the Hospital Corps. Qualifica- tions for ap- poin t m e n t as acting hospital stewards. 323 Field Surgeons, Field Surgeons. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) ciples of arithmetic, including decimal fractions and the rules of proportion ; in orthography and penmanship ; the Articles of War and the regulations affecting en- listed men ; pharmacy ; care and use of meteorological instruments and hospital and field appliances furnished by the Medical Department ; the methods of rendering first aid to the sick and wounded ; the ordinary modes of cooking. To be appointed hospital steward the candidate must have served at least one year as acting hospital steward. He must then pass an examination, oral and written, on the branches named above, and also in the elementary principles of hygiene, including ventilation, heating, and disinfect- ing ; the principles of materia medica, thera- peutics, and minor surgery ; the administration of anaes- thetics. He must also possess a thorough knowledge of the regulations of the Medical Department. These examinations must be conducted by commis- sioned medical officers. Hospital stewards cannot be reduced to the ranks, but acting hospital stewards may. Their duties are, under the direction of the medical officer, to look after and distribute hospital stores and sup- plies ; to care for hospital property ; to com- pound and administer medicines ; to supervise the prepa- ration and serving of food ; to maintain discipline in hospitals and watch over their general police ; to prepare the hospital reports and returns ; to supervise the duties of the members of the Hospital Corps in hospital and in the field ; and to perform such other duties connected with their positions as may, by proper authority, be re- quired of them. From each company in the army four men shall be se- lected as litter-bearers, to be known as company bearers. These men, together with all available men of the Hospital Corps, are to be instructed at least four hours in each month under super- vision of the medical officer, in the duties of litter-bearers and the method of rendering first aid to the sick and wounded. During an engagement, or in an emergency, the com- pany bearers shall, under the orders of their commanding officers, and the supervision of the regimental surgeons, if any are present, give first aid to the wounded or carry them to the rear until relieved by members of the Hospi- tal Corps ; when so relieved they shall immediately join their companies. In active service company bearers shall wear as a distinguishing mark a red brassard around the left arm. Members of the Hospital Corps will be instructed by the senior medical officer of the post at such times (in ad- dition to those previously prescribed) as he may deem necessary. This instruction shall consist of lectures and demonstrations in the methods of rendering first aid to sick and wounded, and of drills in the ambulance ser- vice, and as litter-bearers, in accordance with the pre- scribed manual. Members of the Hospital Corps shall not be required to perform any military duties other than those pertaining to their corps. They shall not be required to attend re- views, parades, or other military ceremonies. Hospital stewards will be assigned in the proportion of one to every post; two, if the post equals six com- panies ; and an additional steward for each additional six companies. An acting hospital steward is allowed also to every post save the smallest. Privates of the Hospital Corps are allowed in the proportion of three to every post ; four, if the garrison consists of two companies, and an additional private for each additional two companies. In the field troops shall be accompanied by such num- ber of men of the Hospital Corps as may be determined by the post commander on the recommendation of the post surgeon. Upon the march or in battle medical officers shall, habitually, be attended by a mounted private of the Hospital Corps, carrying a medical officer's orderly pouch. Hospital stewards, acting hospital stewards, and at least one private of the Hospital Corps in each separate com- pany shall be mounted when serving in the held ; and all privates of the Hospital Corps shall be mounted when serving with mounted commands. The Quartermaster's Department will furnish the necessary mounts. Each private of the Hospital Corps shall carry a can- teen of water, a knife of approved pattern, and a simple package of dressings ; and, except when serving as an orderly, a Hospital Corps pouch. In time of war ambulance and field hospital services will be performed by members of the Hospital Corps. The privates of the corps, to perform the du- ties of litter-bearers, service with the ambu- lances, and at dressing and ambulance sta- tions, should number at least two per cent, of the aggregate strength of the command. To every ten privates there should be an acting hospital steward, and to every thirty privates a hospital steward. The allowance of ambulances, stretchers, and horse and mule litters are the same as fixed in the law published, p. 137, Vol. HI., Reference Handbook, and the medical director of the army and each army corps is also given the control in the terms of that law'. The wording of that law is also used in prohibiting the use of ambulances save for the transportation of sick and wounded, and in urgent cases for medical supplies, and all persons save the proper medical officers, the officers, non-commis- sioned officers, and privates of the ambulance service, or others specially assigned by competent authority, are prohibited from taking or accompanying the sick and wounded to the rear. The medical director or (chief medical officer is also again directed, previous to a march or battle, to cause the ambulances to be distributed and managed for the collecting the sick and wounded and conveying them to their destination, and to provide, under the general instructions of the commanding general, for the care of the wounded at dressing and hospital stations, when taken possession of by the enemy, by deciding in advance what medical officers and members of the Hospital Corps shall remain with a dressing or hospital station in case it is abandoned or captured by the enemy. Privates of the Hospital Corps in the field in time of war will be organized into a company for each brigade, with their hospital stewards and acting hos- pital stewards, under command of an officer of the ambulance service or a medical officer detailed for that purpose, and will habitually camp near the division hospital, or, if there be none, the brigade or field hospital, to give such as- sistance as may be needed. They will be assigned, by order of the commanding general or the senior medical officer, to such duties con- nected with their corps elsewhere as may be required ; but on the completion of such duty, or after an action, they w ill rendezvous at their camp, unless otherwise or- dered. In time of action, in the absence of specific orders from the commanding general or proper medical officer, the officer in charge of the company will, under the general instructions which he may have received, himself issue the necessary orders to proceed to the dress- ing stations, or to the relief and care of the wounded. For the care and treatment of the sick while in hospi- tal or in transport, members of the Hospital Corps should be allowed as follows : To general and division hospitals, six privates to every thirty beds, with such number of hospital stewards and acting hospital stewards as the Surgeon-Gen- eral. with the approval of the Secretary of War, may direct. To a railway hospital train of tw'enty cars, carrying six hundred sick and w'ounded, twro hospital stewards, six acting hospital stewards, and one hundred privates ; and to trains of a greater or less capacity the number should be in the same proportion, to vary, however, at the discre- Qualifica- tions for the position o f h o s p it a 1 steward. Hos p i t a 1 and ambu- lance service in war. Duties o f hospita 1 stewards. Ambulances, st re t ch ers, horse and mule litters. Litter- bear ers, or company bearers. Medical di- rector man- ages ambu- lances a n d provides for care of wounded af- ter battle. P r i v ates of Hospital Corps organ- ization in field. Litter drill and instruc- tion in first aid to wound- ed. Memb ers of Hospital Cor^s. how assigned. Allowance of Hospital Corps in the field or war. Field Ser- vice. 324 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Field Surgeons. Field Surgeons. tion of the medical director, according to the distance to be travelled and the character of the cases to be trans- ported. To a hospital boat of three hundred beds, three hospital stewards, six acting hospital stewards, and sixty- five privates ; or in like proportion to hospital boats of a greater or less capacity. Definition of Terms.-Treating of the terms used in connection with the Hospital Corps, the Surgeon-Gen- eral defines them as follows : Wardmaster.-A private in charge of a ward or wards, wherein are other privates of the Hospital Corps on duty as nurses. This term is usually employed only in general hospitals. Nurse.-A private who is in charge of patients in a ward. In the ordinary post hospital where but one private is on such duty he may also be in charge of the ward. Cook.-A private who is in charge of the kitchen and preparation and cooking of the food. Attendant.-A private who performs other duties than those heretofore enumerated. Orderly.-A mounted private who habitually attends a medical officer " upon the march or in battle." The employment of an orderly in garrison is not contemplated by existing regulations, and the use of the term must be restricted to service in the field. A description will here be given of certain articles which are either a part of the outfit of the soldier of the Hospital Corps or ordinarily used by him, and of which the Field Surgeon should have knowledge. Uniform, and Dress.-The uniform is Io be almost the same as that of an infantry soldier, with modifications as hereunder. Trousers for all Enlisted Men of the Hospital Corps.-Of dark-blue kersey, same quality as for non-commissioned officers of the other arms of the service. Stripes for Trousers for Enlisted Men of the Hospital Corps.-Of emerald green piped with white. Hospital steward's to be one and one-quarter inch wide ; acting hospital steward, one inch wide ; privates, to be one-half inch wide. Forage-cap Ornament for Hospital Stewards.-A cross in white metal, inclosed by a wreath in white metal; for acting hospital stewards and privates of the hospital corps, a cross in white metal. Helmets for Enlisted Men of the Hospital Corps.-Same as for infantry, save that the side buttons shall be of yellow metal with a Geneva cross of white metal. De- vice, a Geneva cross. Uniform Coats.-Same as for enlisted men of infantry except that the facing shall be of emerald green piped with white ; that for acting Hospital Stewards to have a red cross on each side of the collar in front. The uniform dress-coats for all non-commissioned officers shall be made of dark blue cloth of finer quality than for pri- vates. Chevrons for Uniform Coats.-For a hospital steward, three bars and an arc of gold lace; for an acting hos- pital steward, same as for a hospital steward, omitting the arc. Cloth Chevrons for Overcoats and Blouses.-For a hos- pital steward, three bars and an arc of one bar of emerald green cloth, inclosing a red cross ; for an act- ing hospital steward, the same as for a hospital steward, omitting the arc. For a Private of the Hospital Corps and for all Persons Neutralized by the Terms of the Geneva Convention.-A brassard of white cloth, sixteen inches long and three inches wide, with a cross of red cloth, two inches long and two inches wide in centre, to be worn on the left arm, above the elbow. For a Company Litter-bearer.-A brassard of red cloth, to be worn on the left arm above the elbow. Equipment for a Private of the Hospital Corps.-A blanket-bag, blanket-bag shoulder-straps (pair), blanket- bag coat-straps (pair), canteen, canteen-strap, haversack, haversack-strap, waist-belt, waist-belt plate, meat-can, tin cup, knife, fork, spoon, knife and scabbard (Hospital Corps), package of dressings, and Hospital Corps pouch. (SUPPLEMENT.) Brassards. -The brassard of the red cross was adopted by the Geneva convention as a badge of neutrality, to be worn by all persons authoritatively serving with the medi- cal department of belligerents. It is therefore of no use in time of peace. It was adopted by the War Depart- ment as the distinctive badge for privates of the Hospital Corps, and being a part of their uniform is to be worn at all times. The duty of the company bearer is defined in Army Regulations, par. 1575, and is limited, except for purposes of drill, to " active service," during which he should wear the badge of his special duty. As the company bearer is merely an official emergency man, he should, when serving in the field, be equipped as is any other soldier of the line, plus a field tourniquet and a package of dressings. Arms for Hospital Corps.-The Surgeon-General informs medical officers that when on service in an In- dian country they should take steps to arm members of the hospital corps for self-protection against a savage enemy. The Acting Chief of Ordnance concurs "in the views of the Surgeon-General as to the necessity of arming the members of the Hospital Corps for self-protection when on field service in an Indian country. Post commanders will arm the medical enlisted men when necessary. This will meet the case and relieve the medical officers from making returns for fire-arms when use by their men will only be occasional." Contents of Knapsack.-One rubber blanket, one woollen blanket, one undershirt, one pair of trousers, two pairs of socks, two pairs of Berlin gloves, one pair of drawers, one blue flannel shirt, one towel, one pair of shoes, toilet articles, tin cup (suspended underneath). Litter and Sling.-The regulation hand-litter consists of a canvas bed, six feet long and twenty-two inches wide, made fast to two poles seven and a half feet long, and stretched by two jointed braces. The ends of the poles form the handles, nine inches long, by which the litter is carried. The fixed iron legs are loop-shaped, four inches high and one and three-quarter inches wide. On the left front and right rear handles a half round iron ring is fixed, four and a half inches from the end ; between this and the canvas plays the movable ring of the sling. A cross strap with ring and snap is permanently fas- tened to the bottom of each pole near the handles, the free (ring) end passing through a staple undef the oppo- site pole. When the litter is open the straps lie trans- versely under the canvas ; when the litter is closed they are passed around it through the free loop of the sling and fastened to the snaps, thus securely closing the litter. One pair of regulation slings is permanently attached to each litter. They are made of gray woollen webbing, two and one-half inches wide, with a leather-lined loop at one end and a leather strap (with buckle) at the other, the strap passing through a steel swivel, itself attached to the movable ring on the handle. Hospital and Ambulance Flag.-In November, 1889, it was published to the army in regulations, that: The hospital and ambulance flags of the army are as follows : For general hospitals, white bunting 9x5 feet, with a cross of red bunting 4 feet high and 4 feet wide in the centre ; arms of cross to be 16 inches wide. For field hospitals, white bunting, 6x4 feet, with a red cross of bunting, 3 feet high and 3 feet wide in the centre ; arms of cross to be 12 inches wide. For ambulances and guidons to mark the way to field hospitals, white bunting, 16 x 28 inches, with a red cross of bunting 12 inches high and 12 inches wide in the centre ; arms of cross to be 4 inches wide. It will be remembered that Article VII. of the Geneva Convention declares that the flag adopted for hospitals, ambulances, and evacuations shall be distinctive and uni- form. Travois.-The travail or travois was briefly treated but not described, page 142, Vol. III., Reference Hand- book, and is spoken of by Pilcher in his article on the transportation of the wounded, Vol. VII. As adopted 325 Field Surgeons. Field Surgeons. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. by the United States Army Medical Department the travois consists of two jointed side-poles seventeen feet long (when extended) connected by two cross-bars, one . . . feet long, placed . . . feet from the front ends, the other . . . feet long, placed six feet behind the first, and of a regulation litter, suspended from the cross-bars by straps provided for the purpose. For trans- portation, the litter and cross-bars being removed, the poles are closed, the bars laid alongside them and the whole secured by the bar-straps into a package nine feet long which may be carried upon the brackets of the am- bulance. A breast-strap and traces accompany the tra- vois. It is drawn by one animal, the rear ends of the poles trailing on the ground. The service of the travois requires three men, one to lead the animal, the others to watch the litter and be ready to lift its rear poles when passing over obstacles, crossing streams, or going up hill. Field Hospital.-As adopted by the United States Army Medical Department the canvas of a regimental field hospital consists of two hospital tents, and three hospital tent flies, three conical wall tents, one common tent. The hospital tents to be used as a ward ; the coni- cal wall tents as dispensary, squad, and mess tents re- spectively ; and the common tent as latrine cover. The tents are most conveniently pitched in cross-shfipe as per following diagram : (SUPPLEMENT.) and eleven feet to ridge, the wall being four and a half feet high ; it furnishes comfortable accommodations for six patients, and requires to pitch it a ridge pole and two upright poles, seven long tent pins on each side for the guy ropes, and two on each side for the long guys, eigh- teen in all. Twenty-four small pins are needed for the front, rear, and walls. The hospital tent should always be pitched first in the field hospital. Geneva Convention.-Reference to the Geneva Con- vention has been made in the foregoing, and it partic- ularly behooves the field surgeon to be familiar with its provisions. During the War of the Rebellion the War Department published to the army " Instructions for the Government of Armies of the United States in the Field," prepared by Francis Lieber, LL.D., and revised by a board of officers. Therein were contained the following paragraphs par- ticularly interesting to the field surgeon : 35. Classical works of art ... as well as hospital, must be secured against all avoidable injury, even when they are contained in fortified places while besieged or bombarded. 49. A prisoner of Var is a public enemy, armed or at- tached to the hostile army for active aid, who has fallen into the hands of the captor,.either fighting or wounded, on the field or in the hospital, by individual surrender or by capitulation. . . . All soldiers, of whatever species of arms ; . . . all disabled men ... if captured . . . are prisoners of war, and as such exposed to the inconveniences, as well as entitled to the privileges, of.a prisoner of war. 53. The enemy's chaplains, officers of the medical staff, apothecaries, hospital nurses, and servants, if they fall into the hands of the American army, are not prisoners of war, unless the commander has reasons to retain them. In this latter case, or if, at their own desire, they are allowed to remain with their captured companions, they are treated as prisoners of war, and may be exchanged if the commander sees fit. 79. Every captured wounded enemy shall be medically treated according to the ability of the medical staff. 115. It is customary to designate by certain flags (usu- ally yellow), the hospitals in places which are sheltered, so that the besieging enemy may avoid firing on them. The same has been done in battles when hospitals are situated within the field of engagement. 116. Honorable belligerents often request that the hos- pitals within the territory of the enemy may be desig- nated, so that they may be spared. An honorable belligerent allows himself to be guided by flags or signals of protection as much as the contin- gencies and the necessities of the fight will permit. 117. It is justly considered an act of bad faith, of in- famy, or fiendishness, to deceive the enemy by flags of protection. Such act of bad faith may be good cause for refusing to respect such flags. Early in the war, in 1861, and for sometime thereafter, captured medical officers were considered prisoners of war the same as the combatants, but later action in re- gard to captured medical officers was in accordance with the above paragraphs. The Geneva Convention modifies the above quoted paragraphs slightly in certain directions, which will be patent on reading the original Convention with the articles additional thereto to which it appears the United States have acceded. The importance of this Convention is such as to demand its appearance in this place. General Orders, No. 3. Headquarters of the Army, Adjutant-General's Office, Washington, January 14, 1892. The Convention between the United States, Baden, Switzerland, Belgium, Denmark, Spain, France, Hesse, Italy, Netherlands, Portugal, Prussia, Wiirtemberg, Sweden, Greece, Great Britain, Mecklenburg-Schwerin, Turkey, Bavaria, Austria, Russia, Persia, Roumania, Salvador, Montenegro, Servia, Bolivia, Chili, Argentine Republic, and Peru ; with additional articles : For the 8 ft. Rear. I 15 ft. 16 ft. 8 in. Squad. Hospital. 1G ft. 8 in. Mess and Cook. 20 ft. 20 ft. 1G ft. 8 in. Dispensary When desired, a fly is pitched over the space between the dispensary and ward, thus affording shelter for those reporting at " Surgeon's Call." A regimental detachment of the Hospital Corps consists of two non-commissioned officers and eight privates. One army wagon is required to transport a regimental field-hospital complete. Canvas for a battalion field hospital consists of one hospital tent and two hospital tent flies ; two conical wall tents ; one common tent. The battalion detachment of the Hospital Corps consists of one non-commissioned officer and four privates. One escort wagon is required to transport a battalion field- hospital complete. Tentage for medical officers is not included in that for the field hospital. Each medical officer is allowed one wall tent complete. A hospital tent is fourteen feet long, fifteen feet wide, 326 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Field Surgeons, Field Surgeons. amelioration of the wounded in armies in the field ; con- cluded August 22, 1864 ; acceded to by the President March 1, 1882 ; accession concurred in by the Senate March 16, 1882 ; proclaimed as to the original conven- tion, but with reserve as to the additional articles, July 26, 1882 ; commonly known as the Geneva Convention, is as follows : ORIGINAL CONVENTION. Article 1. Ambulances and military hospitals shall be acknowledged to be neuter, and, as such, shall be pro- tected and respected by belligerents so long as any sick or wounded may be therein. Such neutrality shall cease if the ambulances or hospi- tals should be held by a military force. Art. 2. Persons employed in hospitals and ambulances, comprising the staff for superintendence, medical ser- vice, administration, transport of wounded, as well as chaplains, shall participate in the benefit of neutrality, while so employed, and so long as there remain any wounded to bring in or to succor. Art. 3. The persons designated in the preceding article may, even after occupation by the enemy, continue to fulfil their duties in the hospital or ambulance which they serve, or may withdraw in order to rejoin the corps to which they belong. Under such circumstances, when these persons shall cease from their functions, they shall be delivered by the occupying army to the outposts of the enemy. Art. 4. As the equipment of military hospitals remains subject to the laws of war, persons attached to such hos- pitals cannot, in withdrawing, carry away any articles but such as are their private property. Under the same circumstances an ambulance shall, on the contrary, retain its equipment. Art. 5. Inhabitants of the country who may bring help to the wounded shall be respected, and shall remain free. The generals of the belligerent powers shall make it their care to inform the inhabitants of the appeal addressed to their humanity, and of the neutrality which will be the consequence of it. Any wounded man entertained and taken care of in a house shall be considered as a protection thereto. Any inhabitant who shall have entertained wounded men in his house shall be exempted from the quartering of troops, as well as from a part of the contributions of war which may be imposed. Art. 6. Wounded or sick soldiers shall be entertained and taken care of, to whatever nation they belong. Commanders-in-chief shall have the power to deliver im- mediately to the outposts of the enemy soldiers who have been wounded in an engagement, when circumstances per- mit this to be done, and with the consent of both parties. Those who are recognized, after their wounds are healed, as incapable of serving, shall be sent back to their country. The others may also be sent back, on condition of not again bearing arms during the continuance of the war. Evacuations, together with the persons under whose directions they take place, shall be protected by an abso- lute neutrality. Art. 7. A distinctive and uniform flag shall be adopted for hospitals, ambulances, and evacuations. It must, on every occasion, be accompanied by the national flag. An arm-badge (brassard) shall also be allowed for individuals neutralized, but the delivery thereof shall be left to mili- tary authority. The flag and the arm-badge shall bear a red cross on a •white ground. Art. 8. The details of execution of the present conven- tion shall be regulated by the commanders-in-chief of bel- ligerent armies, according to the instructions of their respective governments, and in confonpity with the gene- ral principles laid down in this convention. ADDITIONAL ARTICLES. Article 1. The persons designated in Article 2 of the Convention shall, after the occupation by the enemy, (SUPPLEMENT. continue to fulfil their duties, according to their wants, to the sick and wounded in the ambulance or the hospital which they serve. When they request to withdraw, the commander of the occupying troops shall fix the time of departure, which he shall only be allowed to delay for a short time in case of military necessity. Art. 2. Arrangements will have to be made by the bel- ligerent powers to insure to the neutralized person fallen into the hands of the army of the enemy the entire enjoy- ment of his salary. Art. 3. Under the conditions provided for in Articles 1 and 4 of the Convention, the name "ambulance" applies to field hospitals and other temporary establish- ments, which follow the troops on the field of battle to receive the sick and wounded. Art. 4. In conformity with the spirit of Article 5 of the Convention, and to the reservations contained in the protocol of 1864, it is explained that for the appointment of the charges relative to the quartering of troops, and of the contributions of war, account only shall be taken in an equitable manner of the charitable zeal displayed by the inhabitants. Art. 5. In addition to Article 6 of the Convention, it is stipulated that, with the reservation of officers whose detention might be important to the fate of arms and within the limits fixed by the second paragraph of that article, the wounded fallen into the hands of the enemy shall be sent back to their country, after they are cured, or sooner if possible, on condition, nevertheless, of not again bearing arms during the continuance of the war. [Articles concerning the Marine.} Art. 6. The boats which, at their own risk and peril, during and after an engagement pick up the shipwrecked or w'ounded, or which, having picked them up, convey them on board a neutral or hospital ship, shall enjoy, until the accomplishment of their mission, the character of neutrality, as far as the circumstances of the engage- ment and the position of the ships engaged will permit. The appreciation of these circumstances is entrusted to the humanity of all the combatants. The wrecked and wounded thus picked up and saved must not serve again during the continuance of the war. Art. 7. The religious, medical, and hospital staff of any captured vessel are declared neutral, and, on leaving the ship, may remove the articles and surgical instruments which are their private property. Art. 8. The staff designated in the preceding article must continue to fulfil their functions in the captured ship, assisting in the removal of the wounded made by the victorious party : they will then be at liberty to return to their country, in conformity with the second para- graph of the first additional article. The stipulations of the second additional article are applicable to the pay and allowance of the staff. Art. 9. The military hospital ships remain under mar- tial law in all that concerns their stores ; they become the property of the captor, but the latter must not divert them from their special appropriation during the contin- uance of the war. Art. 10. Any merchantman, to whatever nation she may belong, charged exclusively with removal of sick and wounded, is protected by neutrality, but the mere fact, noted on the ship's books, of the vessel having been visited by an enemy's cruiser, renders the sick and wounded incapable of serving during the continuance of the war. The cruiser shall even have the right of put- ting on board an officer in order to accompany the con- voy, and thus verify the good faith of the operation. If the merchant ship also carries a cargo, her neutrality will still protect it, provided that such cargo is not of a nature to.be confiscated by the belligerents. The belligerents retain the right to interdict neutralized vessels from all communication, and from any course which they may deem prejudicial to the secrecy of their operations. In urgent cases special conventions may be entered into between commanders-in-chief, in order to neutralize temporarily and in a special manner the ves- sels intended for the removal of the sick and wounded. 327 Field Surgeons, Food Inspection. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Art. 11. Wounded or sick sailors and soldiers, when embarked, to whatever nation they may belong, shall be protected and taken care of by their captors. Their return to their own country is subject to the provisions of Article 6 of the Convention, and of the additional Article 5. Art. 12. The distinctive flag to be used with the na- tional flag, in order to indicate any vessel or boat which may claim the benefits of neutrality, in virtue of the principles of this Convention, is a white flag with a red cross. The belligerents may exercise in this respect any mode of verification which they may deem necessary. Military hospital ships shall be distinguished by being painted white outside, with green strake. Art. 13. The hospital ships, which are equipped at the expense of the aid societies, recognized by the govern meats signing this Convention, and which are furnished with a commission emanating from the sovereign who shall have given express authority for their being fitted out, and with a certificate from the proper naval author- ity that they have been placed under his control during their fitting out and on their final departure, and that they were then appropriated solely to the purpose of their mission, shall be considered neutral, as wrell as the whole of their staff. They shall be recognized and pro- tected by the belligerents. They shall make themselves known by hoisting, to- gether with their national flag, the white flag with a red cross. The distinctive mark of their staff while per- forming their duties shall be an armlet of the same colors. The outer painting of these hospital ships shall be white, with red strake. • These ships shall bear aid and assistance to the wounded and wrecked belligerents without distinction of nationality. They must take care not to interfere in any way with the movements of the combatants. During and after the battle they must do their duty at their own risk and peril. The belligerents shall have the right of controlling and visiting them ; they will be at liberty to refuse their assistance, to order them to depart, and to detain them if the exigencies of the case require such a step. The wounded and wrecked picked up by these ships cannot be reclaimed by either of the combatants, and they will be required not to serve during the continuance of the war. Art. 14. In naval wars any strong presumption that either belligerent takes advantage of the benefits of neu- trality, with any other view than the interest of tlie sick and wounded, gives to the other belligerent, until proof to the contrary, the right of suspending the Convention, as regards such belligerent. Should this presumption become a certainty, notice may be given to such belligerent that the Convention is suspended with regard to him during the whole con- tinuance of the war. Art. 15. The present act shall be drawn up in a single original copy, which shall be deposited in the archives of the Swiss Confederation. The additional articles have been acceded to by the United States, and signed on behalf of Great Britain, Austria, Baden, Bavaria, Belgium, Denmark, France, Netherlands, North Germany, Sweden and Norway, Switzerland, Turkey, and Wurtemberg, but will not acquire full force and effect as an international treaty until the exchange of the ratifications thereof between the several contracting states shall have been effected. II. The foregoing Convention and additional articles are published by the order of the President, who com- mands that the original Convention and the first five of the additional articles shall form part of the " Instruc- tions for the Government of Armies of the United States in the Field," as published in General Orders, No. 100, 1863, from this office. III. By direction of the Secretary of War the provis- ions of the Geneva Convention incorporated into the " Instructions for the Government of Armies of the United States in the Field " in the preceding paragraph will form part of the examination of captains of the line, Quartermaster's and Subsistence Departments, as pre- scribed under the head of " Military Law " in the Mem- orandum from this office dated October 5, 1891. By command of Major-General Schofield : Official. J. C. Kelton, Adjutant-General. Drill of the Hospital Corps.-In the past six years much attention has been given to the drill of the hospital corps. Several systems and manuals of drill have been prepared by different military surgeons, and more than one has been adopted by the medical depart- ment of the army, to be in its turn discarded, so that the whole subject may be considered as yet undecided and in a state of transition. The composite of all these efforts of individuals, as well as those of a Board con- vened by the War Department for the purpose of pre- paring a manual of drill for adoption in the United States Army, is about to appear in a new manual to be prescribed to the army as its official hospital corps drill. The writer has examined carefully every one of these systems of drill, and has found each to possess merit. I propose to present some remarks pertinent to one phase of the subject, and that is the effect of drill on separate individual action. In so far as regards those duties of the hospital corps .relating to the handling and first aid to wounded, the drill has acted unfavorably. Since the presentation to the Hospital Corps of our army of its first manual of drill, the writer of this paper, in the discharge of his official duties as Medical Director, has made many formal inspections of the Hospital Corps and its drill, at between thirty and forty different mili- tary posts, extending from Pembina to San Diego, Cal. At these inspections a supposititious case has been pre- sented at the drill to a set of " fours," in which a great emergency had occurred, a wounded man bleeding rap- idly, or some other case demanding prompt and rapid action, and this view of the case was emphatically pre- sented to the "fours" in words. In nearly every case the action of the "four" has been slow and deliberate, precisely as they had been drilled, while in the mean- time the wounded man might have perished from lack of aid. In all these cases the officers under whom the men had been drilled informed me that they had not failed to impress, previously, on the men drilled the ne- cessity of promptness of action in such emergencies, and further expressed surprise at the inappropriate action of their men of which I speak. Now, it is quite apparent that nothing will account for the display of the want of judgment, and for the im- proper action in these cases but the drill. The men had been "drilled into" a certain routine, and so "drilled " that they were unable to depart therefrom when circum- stances required that they should. This view of the case acquires additional force when we consider what a drill is. and what for. Drill seems to be the systematic instruction in certain acts which can be effected in different ways, but which Drill in gen- should be always done in the same way, erai; what it and in the one particular manner taught at is for- the drill; or else acts that are performed by a number of persons together, and in harmony, and therefore best performed in a methodical, systematic manner. Drill does not include the very large number of acts which are seldom best performed in one single way, or by a single person, but whose best manner of perform- ance, in different cases, will vary widely, according to circumstances, and this best manner be selected by the exercise of individual judgment. This distinction clearly appears in early definitions of drill, though not made so prominent in some later definitions. Wilhelm speaks of drill as in general the "exercises through which soldiers and sailors are passed to qualify them for their duties." Webster's Dictionary gives the military meaning as " the act or exercise of training soldiers in the military art, as in the manual of arms, in the execution of evolu- tions and the like." Worcester's definition is, " the instruction of officers and soldiers in the exercise of 328 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Field Surgeons. Food Inspection. the firelock, and in the first principles of field move- ments." Where men perform military exercises in masses, such as companies, platoons, or sets of fours, these exercises are best taught by drill and performed in an undeviating manner. Where the exercise, however, is to be per- formed individually, and demands individual judgment, as in sharp-shooting, or giving the first aid to a wounded soldier, it is best done independently of drill. There is something very attractive about the drilling of men in a military manner-the giving them orders and watching them move in obedience thereto,-and any drill manual for the Hospital Corps must, of course, treat of the marching movements of the men and their hand- ling of the litter, as well as of the first aid to the wounded, unless, as would be proper, the two subjects are em- braced in different handbooks. Hence the danger, and Military move- the tendency which really has manifested ments made too itself, of making the military movements conspicuous by of uie members of the Hospital Corps too important and conspicuous a part of their education, to the neglect of the most important part of their duty when in the field, viz.: the first care of the wounded, the carriage of whom, on a litter, does not con- stitute the greatest part of such first care, though one necessary portion. A certain amount of drill is necessary to a soldier of the Hospital Corps ; but one of the qualifications for a private of the corps has already been stated to be service in the line of the army long enough for the acquirement of knowledge of the drill. Any subsequent drill can only serve to familiarize the man with concerted manage- ment of the litter, the ambulance, and the dummy, while in these directions it accustoms and prepares the squad of litter-bearers to act intelligently together. But the first aid of the wounded is a very important part of the duty of the private of the Hospital Corps, and importance of the drill is only one and not the most effec- " first aid to sick tive mode of teaching him any part of ami wounded," jj^g Tile regulations have attempted to which Hospital guard against the promotion to undue im- Corps men portance of drill over teaching by their should be in- very terms. They say that the company- bearers, and men of the Hospital Corps, shall be "instructed" in "the duties of litter-bearers and the methods of rendering first aid to the sick and wounded.'' And "the instruction," in further terms, is directed to consist of " lectures and demonstrations in the methods of rendering first aid to the sick and wounded, and of drills in the ambulance service, and as litter-bearers, in accordance with the prescribed man- ual." As, however, it became manifest that undue promi- nence was given to drill as compared with other instruc- tion, the Surgeon-General last year issued the following judicious directions : " As the object of this drill is the instruction of mem- bers of the Hospital Corps and company-bearers in the methods of moving, carrying, and otherwise handling the disabled, it should be conducted personally by a medical officer, who will combine with it instruction for rendering first aid in emergencies. While the military element in litter drill is desirable-and indeed essential- a knowledge of methods in rendering first aid is indis- pensable to practical efficiency in the corps. For this reason the hour devoted to drill should be largely given to object-lessons and demonstrations, especially in the methods to be used for the arrest of hemorrhage, the application of temporary dressings to fractures and wounds, methods of artificial respiration, etc., a dummy being used for this purpose whenever practicable. " The object of instruction to company-bearers is ' to insure the constant presence, in each company, of a num- ber of men who can, in emergencies, render temporary aid to the sick or wounded of their organizations ; ' and ' their duty during an engagement ' . . . is to ' carry them to the rear until relieved by the members of the Hospital Corps.' They should, therefore, be instructed primarily and by object-lessons, as far as practicable, in (SUPPLEMENT.) first aid, litter-drill being subordinate to this important knowledge." I have thus endeavored to impress upon the reader the view that, while instruction of the litter-bearer and pri- vate of the Hospital Corps, in all the subjects named in the regulations is of the utmost importance, yet the drill in military movements is of less importance than, and should be subordinated to, instruction in succor and first aid to the sick and wounded. Joseph II. Smith. FLUORESCEIN (Resorcin-phthalein Anhydride). This is one of the numerous coal-tar products. It results from the union of resorcin and phthalein when heated to the melting-point in equal parts by weight. The chemi- cal formula is (CelLXOHLCCOL. It is a yellowish-red crystalline powder, sparingly soluble in water, more sol- uble in an alkaline solution, showing a beautiful green fluorescence. It possesses the property of adhering to the tissue be- neath the epithelium of mucous membranes and impart- ing to it a deep green color, while the epithelial covering is in no way affected. Advantage was taken of this by Dr. Straub, a Netherlands army surgeon, to detect lesions of the eye, who found that the most minute destruction of tissue could be clearly defined. The value of this discov- ery was made known to the profession by Dr. Thomalla, of Friedland, Centralblatt f. prak. Augenheilk., Novem- ber, 1889. Dr. R. L. Randolph {Johns Hopkins Bulletin, April, 1890) reports his experience with it, for this pur- pose, with favorable results. A solution of ten grains of fluorescein, with fifteen grains of bicarbonate of sodium to the ounce of distilled water is prepared, and a few drops placed in the eye on the cornea. Where the membrane is intact no trace of the coloring matter is left, but where the slightest abrasion exists, the parts are impregnated with the stain and the injury distinctly mapped out. After washing the eye with water, whenever a discolora- tion exists, some lesion is present, and if any foreign body is present its size and extent is quite evident by a green ring formed around the substance. In ulcers of the cor- nea the same positive results were always obtained by Dr. Randolph. In simple superficial keratitis the color was made less distinct ; in parenchymatous keratitis the results were negative. Dr. Thomalla had found that in acute glaucoma the disturbances of the cornea that attend this affection could be detected and the diagnosis confirmed. Dr. Randolph did not succeed in detecting any changes in two cases in which he used the solution. The depth of the coloration depends upon the extent of the wound. When superficial, only the exposed tissue is affected, but when the destruction of tissue is deeper the coloring fluid is absorbed by the open vessels, and the staining radiates from the wound. In ulcers and minute abscesses the coloring matter is restricted by the walls of the diseased spots. Cicatricial tissue is not affected, and the opaque spots of old lesions may be distinguished from those of recent origin. Some experience is required to detect the slighter abrasions and estimate the various degrees of discoloration. Other observers have obtained the same satisfactory action without any unfavorable re- sults. The application is perfectly unirritating, and may be used when the most acute inflammation exists. A pot- ash solution may be prepared, and is preferred by some to that of soda. Beaumont Small. FOOD AND DRUG INSPECTION. Modern Legis- lation Relative to Food and Drug Inspection.-In the third volume of the Reference Handbook articles were published on the subject of " Adulteration of Food and Drink," and upon " Legislation respecting Food and Drug Adulteration," which fully set forth the inspection upon those topics up to the date of their publication. The present article will, therefore, be chiefly devoted to the subject of the efficiency of such legislation to pro- vide protection against this species of crime, and to the amount of work accomplished under such laws. Popular knowledge upon the subject of food adultera- tion is undoubtedly derived to a great extent from the occasional publications of the daily press, which are 329 Food and Drug Inspection. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. too often of a very sensational character, exaggerating not only the extent of adulteration, but also the com- parative ratio of harmful adulteration to that which is merely fraudulent in its character. Fortunately these publications are not so common as they were a few years ago. It is but ten years since a public document, in commenting upon this subject, stated that " fraudulent adulteration is but little more common than injurious adulteration." An examination of the food supply of almost any community at the present day would un- doubtedly show the incorrectness of this statement. England.-The following statement from the Twenty- first Annual Report of the Local Government Board for 1891-92 shows the advantages of food and drug inspec- tion in England and Wales since the beginning of opera- tions under the Food and Drug Acts in 1876 : The total number of analyses of food and drug sam- ples made in 1891 was 29,028, or about 1,600 more than in the previous year. The increase has been quite constant during the past twelve years. In the five years 1877-81 the average number of samples examined was 16.688, or one to every 1,520 of the population ; in 1882- 86 it rose to 21,772, or one in 1,237 ; in 1887-91 it was 26,846, or one in 1,060 ; while in 1891 it was 29,028, or one in 999. In London one sample was examined for every 580 persons, and in the provinces one for every 1,140. But in some quite populous districts the pro- visions of the Acts were not carried out, and in com- menting upon the neglect of the authorities in these dis- tricts the Board says : " It is surprising that the local authorities in these and many other cases are content to leave the inhabitants without that protection against fraud by the sale of adulterated food, which the exercise of the statutory powers conferred on the authority would be likely to insure." The following table shows that a decided improvement has taken place in England since the Food and Drug Acts went into operation : (SUPPLEMENT.) 21.5, ranging from Oin St. James, Westminster, and other districts, up to 47.2 per cent, in Lambeth. In other large cities the results of analysis were more favorable, Manchester having but 4.7 per cent., Leeds 4.2, and Salford 1.3 ; while Liverpool and Birmingham had, re- spectively, 17.6 and 17.9 per cent. Part of this difference undoubtedly may be accounted for by diversities in the practice of the inspectors, for while one takes samples only from those retailers whom he suspects of adulteration, another may buy from all dealers in his district. Some, again, are not sufficiently careful to conceal their official character, and it is evi- dent that an inspector who makes purchases himself, in a place where he is known, is much less likely to be supplied with adulterated milk than one who employs a deputy for the purpose. Out of the 1,633 samples of milk reported as adulter- ated, 989 were the subjects of legal proceedings. In 866, lines were imposed amounting to £1,443 (about $7,025). The percentage of samples of adulterated butter in- creased from 11.5 per cent, in 1890 to 15.5 in 1891, not- withstanding the existence of stringent laws similar to those in force in the United States. The number of samples found to be adulterated was 551, and 394 penalties were inflicted, amounting to £630. Of the 1,684 samples of coffee examined, 287, or 17 per cent., were adulterated, and of these the Board says: " The proportion of genuine coffee was in some instances as little as 30.15, or even 5 per cent. It is possible that, as is often asserted in defence of the practice of selling these mixtures, some persons consider that the flavor of chicory improves the coffee. But as no special skill is required to mix the two articles, it would certainly be more economical for the consumer to buy his chicory separately, at its market value of about twopence a pound, rather than to pay about six times that price for it under the name of coffee. The penalties were generally very low, occasionally as little as five shillings." The use of poisonous pigments in England, as else- where, appears to have nearly or quite disappeared under the protective action of the Food and Drug Laws. The principal adulterant found in lard was cotton-seed oil. About one-fifth of the samples of spirits examined were found diluted, but in very few instances had any- thing but water been added. The amount of drug adulteration found was 16.4 per cent. (121 samples out of of 740), of which the Board says: "Considering that the difference between pure and adulterated medicine may conceivably be a matter of life or death to the patient, it is desirable that still more should be done in this direction." The articles not specified were oatmeal, vinegar, ar- row-root, cheese, cocoa, olive-oil, yeast, canned peas, gin- ger, etc. Of 412 samples of tea examined, not one was found adulterated. The report of the Public Analyst of Kent for 1891 is worthy of notice. He says : " The steady going prac- tice of diluting milk and spirits by the addition of water probably will always continue more or less, as the law is put in force ; but there are other often most in- genious forms of adulterations, introduced as special branches of industry, which arise anew, for a time flour- ish, and then gradually die"out. This was the case with the addition of cotton-seed oil to lard, and the substitu- tion of margarine for butter, of powdered olive-stones for pepper, the fact being that the practice of adultera- tion has become a fine art, scientific knowledge and technical skill being applied to the subject as persever- ingly, and, indeed, as successfully, as the same things are being employed in other more legitimate connections. 'Works chemists' of the highest skill in each special department of the food trade are continually engaged in the endeavor to produce articles that can be sold at a greater profit than the things they resemble, at perhaps a less price. This gives rise to a perpetual conflict be- tween the falsifier on the one hand, and the public ana- lyst on the other, in which the latter, in some respects is placed at a great disadvantage, for whereas every move Results of Examinations Made in England and Wales by the Public Analysts, under the Food and Drug Acts, 1877-91. Character of samples. Number of samples exam- ined in 1891. Percentages of adulteration. Total. Adul- tera- ted. 1891. 1890. Five-year periods. 1877-81. 1882-86. 1887-91. Milk 12,151 1,633 13.4 12.8 21.1 16.7 13.2 Bread 799 8 1.0 0.7 6.6 3.4 1.4 Flour 437 1 0.2 0.6 2.5 0.5 3.0 Butter 3,558 551 15.5 11.5 13.9 17.9 13.4 Coffee 1,(184 287 17.0 15.3 18.6 17.8 14.8 Sugar 111 8 4.7 13.8 1.2 14.5 4.6 Mustard 683 60 8.7 7.1 17.4 9.2 Confectionery, 11 41 2.8 etc Pepper 403 1,452 18 ' Ki 2.7 3.2 7.5 Tea 412 '' 26 .... '4.6 0.1 Lard 1,107 2.3 14.2 4.4 7.9 Wine 51 2 3.9 7.7 4.7 Beer 268 11 4.1 2.0 5.4 3.0 2.6 Spirits 3,139 600 19.1 18.1 34.9 22.3 18.5 Drugs 740 121 16.4 14.5 22.0 13.6 13.1 Other articles. 1.967 180 9.2 5.6 7.5 - ■ - - - Total 29,028 3,540 12.2 11.2 16.2 13.9 11.7 The foregoing table shows a slight retrogression since 1890. But the three five-year periods show a decided improvement, comparing the earlier with the latter. The comments of the Local Government Board show that the practice of milk adulteration in the cities of England differs but little from that which prevails in large cities of the United States. The whole number of samples of milk examined in England in 1891 was 12,151, or about two-fifths of all samples of food examined. Of these 1,633, or 13.4 per cent., proved to be adulterated. As might be expected, the samples from cities were much more adulterated than those from the country districts. In London the percentage of adulterated samples was 330 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Food and Drug Inspection. (SUPPLEMENT.) of 985 samples of butter, 241, or 24 per cent., were adul- terated by the addition or substitution of other fats ; of 260 samples of salad oil, 111, or 42 per cent., were adulter- ated ; of 372 samples of flour, only 11, or 3 per cent., were adulterated ; of 134 samples of bread and cake, 44 were condemned on account of being mouldy or badly baked ; of 253 samples of sugar and confectionery, 26 were adulterated ; of 24 samples of honey and preserves, 10 were adulterated with coloring matters ; of 262 samples of chocolate and cocoa, 99 were adulterated with foreign fats and other substances; of 268 samples of coffee, chicory, and tea, 42 were adulterated ; of 1,344 samples of spices, 83, or 6 per cent., only were adulterated ; of 185 samples of preserved meats, 63 were adulterated ; three children's toys, out of 13 examined, were condemned on account of dangerous coloring matter ; of 346 cook- ing utensils, 110, or nearly one-third, contained lead; of 737 samples of illuminating oil, 88 were below the stand- ard. Only 2 samples of drugs were examined and both were found good. The chief difference in the experience of the Paris in- spection and that of Massachusetts consists in the low ratio of adulteration in milk and in spices in Paris. The former is probably partially due to the existence of a lower standard of milk solids in Paris. Hamburg.-The International Review of Food Adul- terations (published at Amsterdam) reports that at Ham- burg, in 1890, of 758 samples of butter examined, 282 were adulterated ; 25 samples of milk out of 44, and 17 samples of coffee out of 27 were adulterated. Of the cases of butter adulteration 185 were convicted, 9 were acquitted, and the remainder were under consideration. The chemist characterizes the extent of butter falsifica- tion as "deplorable." Liege.-M. de Molinari, Director of the Laboratory of Li&ge, Belgium, reports 2 samples of coffee adulterated from thirty to fifty per cent. ; 7 samples of milk, 8 of butter, 2 of pepper, 4 of mustard, 2 of fruit syrup, 4 of liquors, and 4 of beer were adulterated. Fines were im- posed from 5 to 100 francs each. Constantinople.-M. P. Apery, Government Chemist at Constantinople, reports, as the result of examinations from March to December, 1891 : 4 samples of meat, dam- aged ; 4 of fat, rancid and old ; 8 of butter, mixed with foreign fats ; 25 of coffee, mixed w ith roasted cereals; 1 of olive-oil, old and rancid ; 13 of milk, watered ; 2 of cheese, 1 of drinking-water, polluted and unfit to drink ; 1 of vinegar, containing w ood spirit; 2 of flour, mixed with bean flour ; 1 each of cream of tartar, saffron, and glycerine, adulterated. Strasburg.-Dr. Amthor, of Strasburg, reports for the year ending April 1, 1891 : Of 27 samples of suspected milk, 16 were adulterated ; of 32 samples of butter, 8 were spurious ; of 26 samples of confectionery and chocolate, 8 were adulterated ; of 37 samples of canned food, 19 were adulterated, chiefly with copper. In two of these fines amounting to thirty marks were imposed ($7.50). Of 12 samples of vinegar, all were good. No trichinae were found in the hams. Of 59 fruit syrups, 18 were adulterated, the adulterants being.chiefly coloring matter and glucose ; some were entirely artificial. Four fines of 145 marks wrere imposed ($35). Of 92 samples of spices, 11 w'ere adulterated ; all samples of honey and of cheese were good ; of 9 samples of olive-oil, one was adulter- ated, and a fine of 10 marks imposed. Of 58 samples of lard, 18 wrere adulterated with cotton-seed oil and stea- rine. Seven fines wTere imposed, amounting to 263 marks. Of 356 samples of wrine, 32 were bad and 14 suspicious ; the adulterants were mainly water and alcohol. Two fines were imposed, amounting to 2.600 marks ! also six months in jail ! Of 98 samples of sausages, 18 were adulterated with flour, for which 6 fines were imposed of 160 marks in all. For having the fittings of beer-pumps in bad condition, 13 fines were imposed of 50 marks. All samples of petroleum were found to be of good standard quality. Cooking utensils, examined under a law of 1887, were found to contain lead and zinc. Other articles examined were coloring matters injurious to health, cosmetics containing lead, tubes for conduct- and method on his part that is devised to advance the art of detection of adulteration is done openly in the face of the scientific world, the arts of the adulterator are prac- tised and perfected in secret. In point of fact, the most refined and successful processes that have been introduced for the falsification of food have been devised in view of, and with the express design to elude, those means of de- tection which from time to time are discussed and pub- lished in the "Transactions" of our scientific societies. This will explain how it comes about that, from time to time, new methods of adulteration are sprung upon us, and for a while a new fashion in adulteration sets in, until in turn, by the invention of new processes or by the per- fecting of old ones, detection of the new-fashioned mode of adulteration is made possible, and a check thereby put upon the evil practice, which in course of time dying out is followed by other perhaps more cunning devices, and so it goes on, year by year, an everlasting see-saw of attack and defence, from all of which it naturally follows that the pursuit of the public analyst, day by day, becomes more onerous and more exact- ing." Paris.-The work of examining the food supply of Paris has been conducted at the Municipal Laboratory, on the north bank of the Seine, during the past twelve years. When the writer visited this establishment in 1891 it presented the appearance of a busy workshop in which is employed a large force of skilled chemists. Pro- fessor C. Girard is the chief chemist in charge. Two printed reports of this laboratory have been published, dated 1882 and 1885. By decision of the Municipal Council gratuitous quali- tative analyses are made at this laboratory of such articles of food and drink as are deposited at the laboratory for this purpose. The greater part of the articles examined is collected by inspectors authorized to visit shops and markets where food is sold, for the purpose of making collection of such samples. These inspectors also have authority to destroy unsound food. Their collections are generally made from such kinds of food preparations as are suspected of adulteration or are especially liable to this species of fraud. Hence the monthly bulletins is- sued from the laboratory do not represent the actual con- dition of the markets, since many articles of food are not liable to adulteration. The number of articles examined in each year amounts at present to more than 20,000 an- nually. The scope of the analyses embraces several articles in common use besides food, such as children's toys, wall-paper, cooking utensils, preparations used in embalming, coloring matter, cosmetics, and illuminating oils. The following condensed statement, compiled from the monthly bulletins for the eleven months ending May 31, 1892, will give a fair illustration of the work accom- plished in Paris during that period: Number of visits made to markets and shops, 45,394 ; amount of meat and fish destroyed, 327,025 kilogrammes, or about 360 tons ; amount of vegetables and fruits destroyed, about 1,000 tons; amount of mushrooms, tomatoes, etc., destroyed, about 295 tons ; amount of butter and cheese destroyed, about 14 t°n ; complaints before justice. 200 ; number of articles submitted to examination, 19,928; of these 7,015 were samples of wine, more than half of which were found to be adulterated by the addition of water, alcohol, sugar, coloring matters, plaster, salicylic acid, or other articles. The other articles were chiefly the following: 97 samples of vinegar, of which 36 were adulterated ; 688 samples of beer, of which only 1 was adulterated ; 109 samples of cider, of which 45 were adulterated, either by dilution, coloring matter, or other means ; 410 of dis- tilled liquors, of which 240, or 585 per cent., were adulterated in various modes ; 639 samples of drinking- water, of which 173 were unfit for use, either in conse- quence of pollution by organic or mineral ingredients ; 4,315 samples of milk, of which only 279, or but little more than six per cent., were found adulterated by skim- ming or watering ; of 156 samples of syrup, 74, or nearly half, were adulterated with glucose or coloring matters ; 331 Food and Drug Inspection. REFERENCE HANDBOOK OF THE AIEDICAL SCIENCES. ing beer and wine, nipples of nursing-bottles, etc. The total number of samples examined was 1,322. Austria.-The Director of the Laboratory at Vienna, Dr. AI. Alansfeld, reports, for the year ending August 24, 1891, out of 447 specimens that 160, or 35 per cent., were adulterated. The samples examined were bread, milk, butter, liquors, tallow, cocoa-butter, vinegar, preserves, coloring matters, fruit-juice, spices, compressed yeast, honey, coffee, Hour, and olive-oil. Dr. AL T. Lecco, Official Government Chemist of Bel- grade, reports upon the following analyses of food and other articles for the year ending October, 1892 : (SUPPLEMENT.) from the cow, as such, I should have decided that it had been both skimmed and watered. Such milk should not be considered as an article of sale, but as a pathological secretion." In commenting upon the use of poisonous salts of copper as a coloring matter for preserved peas and other vegetables, he says, "Food should not be made to as- sume a good appearance to the injury of health." The Canton Chemist of Geneva, in his quarterly report for the last three months of 1891, reports upon the anal- yses of 274 samples, 215 of which were of wine-165 red and 50 white ; 49 were plastered and 147 not plastered. They were further classified as 87 good, 108 medium, and 20 inferior ; 20 were reported as injurious to health. Of 10 samples of butter, 7 were good and 3 adulterated ; of 14 samples of water, 7 were potable and 7 unfit for use ; of 4 samples of milk, 2 were pure and 2 adulterated ; of 13 samples of sausage-meat, 10 were good and 3 bad ; of 6 samples of spices, all were pure. Dr. Schaffer, Canton Chemist of Berne, Switzerland, reported upon the following articles in 1890 and 1891, from which it appears that the scope of the Canton chemist's authority extends to nearly all articles in do- mestic use as well as to food and drugs. N u m b e r of Adulterated or samples ex- of bad qual- amined. ity. Bread 21 1 Milk 571 39 Cream 42 20 Butter .... 8 1 Lard 23 1 Wa er 23 9 2 Salad oil 68 28 S.uisages .... 15 4 ('ake 4 1 Wine 138 10 Brandy 77 9 Vinegar 28 16 Ground coffee 5 5 Whole coffee Y 3 Pepper(ground) 85 29 Pepper (whole) 1 Cinnamon 47 28 Sugar 28 1 Crockery ware 8 6 Metallic faucets 4 2 Cosmetics 18 9 Miscellaneous 135 16 Articles examined. Number exam- ined. Number found adulterated. 1890. 1891. 1890. 1891. Ammoniac 2 Apples, dried Axle-oil 2 9 1 Azurin 2 2 Beer 8 3 2 Beer faucets 1 Brandy and spirits 26 16 3 10 2 Bread and cake 8 2 Butter 7 9 3 2 Cloth and fabrics 4 1 Cloves 2 Coal 7 1 Cocoa 6 12 5 5 Coffee and coffee substitutes 15 2 2 Coloring matters 25 6 17 Confectionery 90 61 Cooking utensils 2 Cordials 7 14 2 8 Cotton yarn Fertilizers 62 52 3 3 Fireworks 4 4 Fodder (for cattle) 16 28 1 1 Fruit 12 16 Hat linings Maize 5 3 4 Meal 6 7 1 2 Milk 193 260 61 99 Paper 3 2 1 Peat 1 Pepper 37 33 16 17 Petroleum 4 2 Rum 13 32 6 11 Saffron 32 38 29 20 Sal ammoniac 2 3 Sausages 3 1 1 Soap 3 6 Soda 1 Stomach bitters 4 Sugar 2 7 Sulphate of copper 6 4 Sulphosteatite 1 1 Syrup Tallow 3' i Tea 11 3 Vaseline 3 4 Water, including mineral waters 123 110 24 28 Wine 353 388 78 74 Wool 3 3 The chemist states that the greater part of these arti- cles were falsified by the addition of substances which cheapened their value. The articles which were harmful to health were adul- terated wines, cake colored with chrome yellow, brandy containing an excess of amylic alcohol, cosmetics con- taining corrosive sublimate and compounds of lead ; metal faucets containing twenty-five to thirty-three per cent, of lead. Amsterdam.-Drs. Coster and Mazure, Government In- spectors at Amsterdam, reported, in 1890, that out of 31 specimens of dried apples examined, 24 contained zinc in variable proportions ; dried pears also were found to con- tain the same ; the supposed cause being the drying of these fruits in galvanized (zinc-coated) vessels. In min- eral waters they found minute traces of metals, chiefly copper. Out of 804 samples, 577 had no metallic poi- son. They examined 1,781 specimens of pork, and none of them contained trichina?. Of this number 1,090 were from America. Sicitzerland.-In Switzerland the work of examining articles of food and drink is well organized by the ap- pointment of a competent chemist in each Canton, whose duties embrace the analysis of all articles in domestic use wherein a chemical analysis may be required. In the summer of 1891, the writer visited the labora- tories of the Cantons of Berne and Lucerne, and found them well equipped and intelligently conducted. The Swiss method of work would form a good model for conducting a laboratory for food analysis in any Amer- ican city. Dr. Ambuhl, Canton Chemist of St. Gall, examined, in 1890, 1,269 samples of all sorts. Out of 96 samples of milk, 9 were diluted with water from 10 to 35 per cent. In his examinations of samples taken direct from the cow, he found one which contained only 0.45 per cent, of fat instead of 3 or 3.5, and 8.9 of total solids in place of 12.5, or 13 per cent., and says of this sample : " If I had not known that this milk was drawn directly In addition to the foregoing the chemist reports upon several proprietary articles, such as Putzwasser for clean- ing brass; hair-dye, containing nitrate of silver; salve for burns ; mixture for erasing writing ; powder for re- moving acid taste from wine (carbonate of lime), and an- tidotes for erysipelas. 332 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Food and Drug Inspection. Massachusetts.-The following summary presents in a condensed form some of the results of the w'ork of food and drug inspection in Massachusetts by the State Board of Health during the past nine years of its work in this direction : Summary. Years. Total. 1883. 1884. 1885. 1886. 1887. 1888. 1889. 1890. 1891. Number of samples of food examined 695 1,962 3.771 3,438 4,870 4.904 4,854 5,585 4,870 34.949 Number of samples found to be pure Number of samples found to be adulterated, 363 779 2,180 2,186 3,163 3,385 3,213 3,771 3,206 22,246 or not conforming to the statutes 332 1,183 1.591 1,252 1,707 1,519 30.9 1,641 1,814 1,664 12,703 Percentage of adulteration. Number of samples of milk examined (in- 47.8 60.3 40.3 36.4 35.1 33.8 32.5 34.2 36.3 eluded above) 218 1,123 2,219 2,085 3,081 2,825 3,219 3,236 2,726 20,732 Number of samples above standard 35 347 1,297 1,323 1,900 1,705 1,120 1 971 1,858 1,629 12,065 Number of samples below standard 183 776 922 762 1,181 1,248 1,378 1,097 8.667 Percentage of adulteration 83.9 69.1 41.7 36.5 38.3 39.6 38.7 42.6 40.2 41.8 Number of samples of drugs examined... 603 682 1,007 888 550 862 600 400 424 6.016 Number of samples of good quality Number of samples adulterated, as defined 357 431 571 463 400 634 503 325 352 4,036 by the statutes 246 251 436 425 150 228 97 75 72 1.980 Percentage of adulteration 40.8 36.8 43.3 47.8 27.3 26.4 16.2 18.7 17.0 32.9 Total examinations of food and drugs 1,298 2.644 4,778 4.326 5.420 5,766 5.454 5,985 5,294 40.965 Total examinations of good quality Total examinations not conforming to the 720 1,210 2,751 2,649 3.563 4,019 3,716 4,096 3,558 26,282 statutes 578 1.434 2,027 1.677 1,857 1,747 1,738 1,889 1,736 14.683 Percentage of adulteration Expense of collection, examination, and 44.5 54.2 42.4 38.7 34.3 30.3 31.9 31.5 32.8 35.8 prosecution Expense of collection, and examination per §2,931 56 $5,529 60 $8,557 43 $8,025 34 $8,803 62 $8,915 41 $10,356 28 $10,013 04 $10,019 41 $73,151 69 sample 2 26 2 09 1 79 1 85 1 62 1 54 1 89 1 67 1 89 1 79 As is customary under the operation of all new laws of similar character, the first few months of work are usually devoted to an examination of the different sorts of food, in order to determine the extent and the charac- ter of adulteration. This preliminary examination es- tablished the fact that many staple products are not subject to adulteration, except in rare and exceptional instances. This applies, so far as Massachusetts is con- cerned, to sugar, Hour, and the various other cereal prod- ucts, so that it has not been deemed necessary to give much attention to these articles of food. Hence the fig- ures in the foregoing table should not be understood as representing the actual amount of adulteration existing in the general food-supply, nor even in articles liable to adulteration, since special pains are taken at times to obtain only such articles as are known to be adulterated. Experience often shows an inspector where to find adul- terated articles of food. The difference in the percent- ages of the first two years (1883 and 1884) and the last two (1890 and 1891) in the foregoing table may be taken as representing quite fairly the improvement, not in the general food-supply under the present inspection, but in those articles which are found to be liable to adultera- tion. Upon this point the Board published the follow- ing general statement in its Annual Report of 1884 : " There can be no question as to the beneficial results of the law, as executed by the officers of the Board, in im- proving the quality of the food and drug supply of the State, especially in regard to milk and butter-in the former case as relates to the quality of the supply, and in the latter as relating to the proper branding and mark- ing of spurious goods. The extensive correspondence of the Health Department with wholesale houses outside of Massachusetts also confirms their appreciation of the value of the work done in this State, and also thb neces- sity of furnishing articles of undoubted purity for this market. This is especially true of all classes of drugs sold at wholesale by parties outside the State. " The actual economic results obtained by the enforce- ment of the statutes relative to food and drug inspection cannot be stated exactly. The law is comprehensive and its provisions cover a great variety of articles. Its re- straining influence extends outside of Massachusetts to manufacturers sending goods to this market. Such par- ties appreciate the value of the work done in this State, and also the necessity of furnishing articles of undoubted purity for this market. It is specially provided by the statute that at least three-fifths of the amount appropri- ated shall be expended in the enforcement of the laws relating to the adulteration of milk and its products. This provision has been carefully observed." It was found convenient, after a year's work, to adopt a code of regulations for the government of its analysts and inspectors in the performance of their duties under the Food and Drug Acts. The following is a copy of these regulations. It is not thought necessary to repeat the laws in force in Massachusetts here, since the sub- stance of them has been presented in the third volume of the Reference Handbook : Rules and Regulations of the State Board of Health of Massachusetts Relative to the Inspection and Analysis of Food and Drugs.-1. The State Board of Health shall appoint analysts and inspectors, as provided in section 5 of chapter 263, Acts of 1882. 2. It shall be the duty of the inspectors to procure samples of drugs and articles of food at such times and places as the secretary shall direct, in the manner pro- vided in section 6 of chapter 263 of the Acts of 1882, and in section 3 of chapter 289 of the Acts of 1884, and in all acts amendatory of said provisions. 3. Under the direction of the secretary, the inspectors shall, for the identification of samples, affix a number to each sample of food or drugs obtained by them, in such manner as may be prescribed. Under no circum- stances shall an inspector convey any information to an analyst as to the source from which any sample was ob- tained. 4. The inspectors shall keep records of each sample, each record to include the following items : (a) The in- spector's number ; (b) the date of purchase or receipt of sample ; (c) the character of the sample ; (d) the name of the vendor ; (e) the name of the city or town, and street and number where the sample is obtained, and in the case of a licensed milk pedler, the number of his license ; (/) as far as possible the names of manufacturers, producers, or wholesalers, with marks, brands, or labels stamped or printed upon goods. 5. It shall be the duty of the analysts so appointed to determine, under the direction of the secretary, by proper examination and analysis, whether articles of food and 333 Food and Drug Inspection. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) drugs, manufactured for sale, offered for sale, or sold within this Commonwealth, are adulterated within the meaning of chapter 263 of the Acts and Resolves passed by the General Court of Massachusetts in 1882, and all acts amendatory thereof, adulteration being defined as follows, viz. : In the case of drugs, (1) If sold under or by a name recognized in the United States Pharmacopoeia, it differs from the standard of strength, quality, or purity laid down therein, unless the order calls for an article inferior to such standard, or unless such difference is made known or so appears to the purchaser at the time of such sale. (2) If when sold under or by a name not recognized in the United States Pharmacopoeia, but which is found in some other pharmacopoeia or standard work on Mate- ria Medica, it differs materially from the standard of strength, quality, or purity laid down in such work. (3) If its strength or purity falls below the professed stand- ard under which it is sold. In case of food: (1) If any substance or substances have been mixed with it, so as to reduce or lower or in- juriously affect its quality or strength. (2) If any inferior or cheaper substance or substances have been substituted wholly or in part for it. (3) If any valuable constituent has been wholly or in part abstracted from it. (4) If it is an imitation of or is sold under the name of another ar- ticle. (5) If it consists wholly or in part of a diseased, decomposed, putrid, or rotten animal or vegetable sub- stance, whether manufactured or not, or in the case of milk, if it is the produce of a diseased animal. (6) If it is colored, coated, polished, or powdered, whereby dam- age is concealed, or if it is made to appear of better or of greater value than it really is. (7) If it contains any added poisonous ingredient, or any ingredient which may render it injurious to the health of the person con- suming it. 6. It shall also be the duty of the analysts to receive such specimens of food and drugs for analysis as may be delivered to them by the secretary, or by the inspec- tors, and to examine the same. To avoid, as far as pos- sible, all suggestion or danger of specimens having been tampered with, each analyst shall keep each specimen in his possession in a suitable and secure place, labelled in such a manner as to prevent any person from having access to the same without the knowledge and presence of the analyst. Analyses of perishable articles should be made promptly after they are received. 7. An analyst shall give no information, under any circumstances, regarding the result of any analysis,, to any person except to the secretary of the Board, prior to any trial in court in reference to such analysis. The analysts shall carefully avoid any error regarding the inspector's number attached to each sample, and shall report the results of their work in detail to the sec- retary. In the case of all articles having a numerical standard provided by statute, the result of the analysis should show their relation to such standard. 8. Before beginning the analysis of any sample, the analyst shall reserve a portion, which shall be sealed, and in the event of finding the portion analyzed to be adul- terated, he shall preserve the sealed portion, so that in case of a complaint against any person the last-named portion may, on application, be delivered by the secretary to the defendant or to his attorney. 9. Each analyst shall present to the secretary, on the Monday before the first Thursday of each month, a summary of the analyses made by him during the previ- ous month. Each analyst shall also present, on or before the first of January of each year, an annual report of the work done for the year ending on the 30th of September pre- ceding. 10. The secretary shall have charge of the reports of analyses, and shall cause cases founded on such reports to be submitted to the courts for prosecution. In each case of a retailer, and of every dealer not a manufacturer or producer, he may, if the party has not been previously complained of in court, issue a notice or warning of any violation of the law relative to the adul- teration of food and drugs, and of the offender's liability to prosecution on a repetition of the sale. 11. Should the result obtained by any analyst be ques- tioned in any given case, another analyst shall repeat the analysis, unless otherwise instructed by the Board, pro- vided a sufficient sum to meet the expense of the analysis be deposited with the secretary by any interested party feeling aggrieved, which sum will not be returned unless the second analysis fails to confirm the first in essential particulars. 12. Any appeal from the decision of an analyst shall be filed with the secretary, who shall report it, and any matter in controversy to the Board, giving his judgment thereon, and the Board shall supervise and control the action of its officers in executing the law. 13. Where standards of strength, quality, or purity are not fixed by the act, the analysts shall present to the sec- retary such standard as in their judgment should be fixed, and the secretary shall report the same to the Board for its action. The standards set by the British Society of Public Analysts will be followed, as nearly as practicable, until otherwise ordered. 14. Whenever a drug or preparation, not prescribed in a national pharmacopoeia or other standard work on Ma- teria Medica, shall be manufactured, offered for sale, or used in this State, the standard of such drug, and the standard and proportion of the ingredients of such prepa- ration, and the range of variability from such standard or standards, shall be ascertained by the analysts, who shall report the same through the secretary to the Board. 15. The analysts shall occupy such time in the per- formance of their respective duties as a reasonable com- pliance with the terms of the statute shall require, and shall be present one hour of each day, at such time of the day and at such place as shall be designated by the Board, to meet the convenience of interested parties and the public. The following classified list embraces most of the ex- aminations of articles of food examined in Massachusetts under the Food and Drug Acts up to October 1, 1891: Articles examined. Number examined. Number adnl- „ . . terated or be- P«cent of low standard. ^"Iteratrnn. Milk 20,732 8,667 41.8 Condensed milk 20 2 10 Butter 1,195 338 28 Cheese 130 1 0.8 Vinegar 1.140 052 57 Lard 173 74 43 Olive-oil 313 200 66 Spices find Condiments: Black pepper 997 331 33 White pepper 582 239 41 Cayenne pepper 140 33 23 Mustard 784 379 47 Cloves 737 154 21 Cassia and cinnamon 789 103 13 Pimento 18 2 11 Ginger 663 73 11 Nutmeg 18 1 6 Mace 179 69 39 Allspice 340 27 8 Curry powder 21 0 0 Coffee 290 97 33 Tea 352 5 1 Cocoa and chocolate 4 y 9 12.5 Wheat flour 22 0 0 Bread 24 1 4 Cake 3 0 0 Corn-meal, rye-meal, oat-meal, barley-meal 15 0 0 Sago, tapioca, and corn-starch. 21 0 0 Buckwheat and cerealin 3 0 0 Cream of tartar 1.877 370 20 Baking powders 150 115* 74 Soda and saieratus 100 2 Molasses 1,105 212 18 Syrups 39 13 33 Maple syrup 210 89 42 Sugar 151 5 Maple sugar 118 44 37 * Containing alum. 334 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Food and Drug Inspection. Artificial Coloring-matter in Food.-The practice of employing coloring-matters in connection with different articles of food is very common. The following may be named as very common examples : Certain condiments, such as mustard, ginger and other spices, sugar, confectionery, preserved and canned goods (especially peas and beans), milk, butter, oleomargarine, pickles, cake, syrups, and various sorts of beverages. The coloring-matters employed in connection with these articles of food may be classified as follows : 1. Harmless Colors.- These are usually made from some comparatively harmless organic products, such as annatto, caramel, turmeric, and cochineal. 2. Injurious Colors.-These are usually some of the metallic compounds, such as lead, copper, and tin. It cannot be urged in regard to any of these colors, whether harmless or otherwise, that they have any true value as articles of food, and the demand for their use comes mainly from the trader, and not from the actual consumer, excepting, so far as the latter has been er- roneously educated by the former as to color-standards in the matter of food. No good and useful end is attained by their use, so far as the question of nutriment is concerned, and not only may harm ensue, but also even fatal consequences, as in recent cases which occurred in Philadelphia from the use of poisonous compounds of The true use of artificial-food colors is usually a fraud- ulent one, and they are consequently employed mainly for the purpose of giving to an inferior article of food a fictitious value, and thus to imitate other articles of a similar character, but of better quality, at least so far as their actual cost is concerned. The difference in actual nutritive value as articles of food may, however, be but little or nothing. When examinations of milk were made in Massachu- setts soon after the enactment of the law of 1882, it was found that the addition of coloring-matter to milk was a very common practice in the cities. From the fact that colored samples of milk were almost invariably found to be adulterated in other ways, it was inferred that artifi- cial coloring was practised for the purpose of concealing fraud, and of giving to milk which had been skimmed and watered the appearance of milk of good standard quality. Hence a vigorous warfare was made against the practice until it disappeared. The question of the sale of preserved vegetables colored bright green by sulphate of copper came to the attention of the Board, and the safe ground was taken that the introduction of poisonous metallic colors in any amount whatever, should have no legitimate place in the food- supply of the people. Trichinae in Pork.-Among the many questions re- lating to the food-supply in Massachusetts the quality of the pork offered for sale has not been overlooked. Nearly thirteen thousand hogs have been examined un- der the direction of the Board for the presence of tri- chinae. Of this number seven hundred and ninety-one, or 6.3 per cent., were found to be trichinous. Western hogs were found to contain less than Eastern, and of those raised in Massachusetts, those reared in public insti- tutions and upon the refuse of cities were found to suffer the most. An examination was also made of sausages, and only one out of 365 was found to contain trichinae. Baking-powders. - No class of substances employed in the preparation of food has been the subject of so much discussion as these ; and this is true notwithstand- ing the fact that, as elements in the matter of food econ- omy, or as nutritive constituents of the necessary food of mankind, they have absolutely no value. Their use in the preparation of food was unknown until the early part of the present century, and for ages the human race lias thrived without them. Whenever bread was desired which should possess the properties of porosity and light- ness of texture, in early times, some sort of leaven or yeast was employed for the purpose. The use of baking-powders at the present day is due, undoubtedly, to several causes, prominent among which is a demand for rapid and convenient methods of pre- Articles examined. Number examined. Number adul- terated or be- low standard. Per cent, of adulteration. Glucose 4 9 50 Honey 266 118 44 Confectionery 285 52 18 Milk sugar 1 0 1 Pickles 29 2 7 Lime-juice 7 0 0 Lemon juice 21 21 100 Horse-radish 20 8 40 Arrow-root 21 4 19 Gelatine 34 3 9 Salt 21 1 5 Canned foods t 203 133 66 Flavoring extracts 39 5 13 Sardines 5 4 80 Jellies and jams 61 12 20 Fig paste 2 1 50 Whiskey, wine, ale, beer, and cider £ 17 7 41 Miscellaneous § 79 0 0 Drugs 6,016 1,980 33 t A considerable portion of these were French vegetables, which were examined for the presence of copper as a coloring agent. f A large number of examinations of spirits and wines is included in the item of drugs. § Under this head are included samples of sage, marjoram, macaroni, vermicelli, poultry dressing, desiccated cocoa-nut, citron, compressed yeast, meat-extracts, etc. A broad view of the subject of food inspection would include the examination of water as one of the neces- saries of life, since it is essential to the preparation of most articles of food, and also a convenient vehicle for the administration of very many of them. It is also absolutely necessary to the healthy growth of the human organism. The important work of water analysis has been con- ducted by the Engineering Department of the State Board of Health since 1887, and this work has been ex- tended to the examination of the waters of the ponds, streams, springs, reservoirs, and wells used as public supplies by about one hundred and fifty cities and towns in the State. The total number of such examinations has been about ten thousand five hundred. Full reports upon this subject may be found in the reports of the Board for the years 1887 to 1892. In addition to the regular routine mode of food and drug inspection in Massachusetts, much has been ac- complished by work in special directions during the nine years since the work was begun. These may be enumer- ated as follows : Investigations relating to the quality of milk as pro- duced by the cow. Analysis of injurious and other empirical preparations: Hair-dyes, cosmetics, bitters, and tonics ; alleged cures for the opium and alcohol habits, etc. Coloring-matters in food : Milk, butter, oleomargarine, preserved vegetables, salts of tin in molasses, etc. Food Preservatives. - The quality of wines and liquors; report upon oleomargarine ; the uses of glucose in food ; the presence of trichinae in pork products ; the standard of vinegar ; baking-powders ; the use of the word " compound. " The Standard of Milk.-For the purpose of determining the consistency of the existing standard of milk in Mas- sachusetts, analyses were made in 1884 of the milk of six hundred cows, the samples being collected in differ- ent parts of the State, and from different herds of ani- mals, of different ages, and in different seasons of the year. The average total solids of the entire number was found to be very nearly thirteen and one-third per cent, (the legal standard is thirteen per cent.). In later years these figures have been confirmed by further examina- tions upon the same point. With reference to breeds of cows the results of anal- yses were as follows : The average milk of 11 Jerseys had 14.02 total solids and 4.34 fat. " " " " 92 native cows " 13.09 " " " 3.31 " " " " " 30 Ayrshires " 12.97 " 11 " 3.35 " " " " " 51 Durhams " 12.73 " " " 3.28 " " " " " 47 Holsteins " 12.51 " " " 3.29 " 335 Food and Drug Inspection. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) paring bread and pastry for cooking ; and, also, to the stimulus of trade produced by excessive advertising. If the statements of rival manufacturers as to the poi- sonous qualities of all other baking-powders except their own were to be credited, the use of these preparations would soon cease. Such false teaching does harm in misleading the community and creating a distrust. The fallacy lies in the want of discrimination between large and small doses of the ingredients of such powders. For example, common salt and mustard act as poisons in large doses and produce vomiting. In small doses, on the con- trary, neither of them is harmful. The same is also true, to a certain extent, of cream of tartar, alum, and other ingredients of baking-powders. Another property which is common to this class of arti- cles is that of chemical reaction, which takes place when the different ingredients of these powders are brought in contact, and also into solution, in the process of prepara- tion of bread. The resulting salts which follow7 this union may, and often do, have very different properties from those which were characteristic of the different ingredients of which such powders were originally com- posed. In one instance hydrate of alumina is the result- ing salt; in another, a salt quite similar to Rochelle salts; and in another, the phosphate of alumina. It is therefore a misleading statement to call alum " a corro- sive poison," or to assert the same property of cream of tartar or the acid phosphate of lime, since it is not in either of these forms that the baking-powder is ingested by the consumer. For the same reason it is also mani- festly wrong to state that cream of tartar or phosphate of lime is healthful. Both of these are drugs, and as such have their proper uses. Their constant daily use is another question. The singular claim has been made in behalf of the phosphate of lime that it "restores the phosphates lost by the removal of the bran." It may reasonably be asked whether, in the interest of public health, as well as economy, it would not be better to retain this valuable portion of the grain in preference to the attempt to sub- stitute for the natural constituent an artificial representa- tive. Flour made from the whole wheat, or other grains, while it may be less pleasing to the eye and possibly to the taste, has the advantage of producing w'holesome bread. Claims are made by the makers of baking-powders of purity for their own products, and also of impurity for the products of others. In whatever sense these terms may be regarded by the community at large, it should be remembered that the introduction of these articles is of comparatively recent date; that they are compounded of several ingredients ; that different manufacturers employ different ingredients to attain the same object or end. No standard has ever been adopted by any government authority, so far as we can learn, for this class of prepa- rations ; hence the use of the terms purity and impurity, as applied to them, must be considered as arbitrary, or at least merely conventional. Experiments have been undertaken with the view of settling the question as to whether the ingredients of certain baking-powders were injurious to health ; and, while positively harmful results have in some instances been reached by the ingestion of considerable doses of such ingredients, when taken sin- gly, still, the question of actual injury to health, on the one hand, or of freedom from harm on the other, from the use of baking-powders in food, cannot be regarded as settled. Mixtures or Compounds.-The work of inspection in- cludes a careful examination of the methods in which food is offered for sale, especially with reference to the question of labelling and the agreement of the label with the actual contents of the package to which it is affixed, since the statute of Massachusetts provides that "mixt- ures or compounds " are not to be treated as adulterated in the eye of the law, "provided that the same are not in- jurious to health and are distinctly labelled as mixtures or compounds." This provision of the law is frequently disregarded, especially in the case of spices; and while the term " compound " is to be found after prolonged search upon the label, it often occupies an obscure position, or is printed in extremely small type, so that the term " dis- tinctly labelled " does not apply. It is not always safe to infer that all parts or packages in a lot of spices or similar articles of food are pure, be- cause a single sample or package proves to be pure. The following case is an illustration: Two packages of pow- dered cloves were obtained at a grocery. The packages were in unbroken tin boxes of one-quarter pound each, and were purchased at an interval of three weeks ; each package was of the same size, and each had exactly the same brand or label. On inquiry of the retailer it was found that both of the packages came from the same lot. It appeared on examination that the first package was considerably adulterated and the second was pure. A notice of this fact was therefore sent as usual to the re tailer, who transmitted the notice to the manufacturer, who lives outside the limits of the State ; he denied the charge, and hence, as is customary in cases of disputed analysis, samples were sent to a second analyst, who con- firmed the statement of the first; and finally, four analy- ses were made with the same result, neither chemist knowing anything of the source of the samples, nor did either know that a previous analysis had been made. This circumstance shows that it is not always safe to judge of the character of any group or lot of articles from the examination of a single sample. Gross Appearances.-It is evident that very little reli- ance can be placed upon the mere external inspection of articles of food, such as may be made by the employment of the senses of taste, touch, smell, and sight, since the principal object of the falsifier of food preparations is to deceive the senses of the consumer by every possible re- source of his art. It is a common experience in this de- partment of work to receive articles of food from various sources, which are believed by the persons presenting them for examination to be adulterated, but which the analyst finds to be pure. This experience is true in the case of many of the articles of food which are liable to adulteration, and also of some articles which are scarcely ever found to be adulterated. The same experience has been met by other authorities who have had charge of similar work (" Report of Commissioner of Internal Rev- enue, Washington, 1887," p. exliii.). Among the vari- ous articles which have been thus submitted to the Board for examination (under the impression of the person sub- mitting them that they were adulterated) were the fol- lowing : Flour, sugar, molasses, vinegar, cream of tartar, honey, milk, butter, cheese, lard, salt, and several kinds of spices or condiments. The reasons for these false notions with reference to the quality of articles of food are mainly the following : 1. A liability to mistake the deterioration of an article, or an inferiority in grade or quality, for an actual falsifica- tion or substitution. 2. A lack of familiarity with the true physical characteristics of the article in question. Notices to Retailers.-It has been the custom of the Board to issue a w aiming notice to retailers selling arti- cles found to be adulterated, in cases where there was a reasonable probability that the retailer was not, aware that such articles were adulterated. In certain articles of food which have been specially liable to fraud, such as the various sorts of spices, condi- ments, cream of tartar, etc., adulteration has been greatly diminished, and is in many instances limited to parties whose business is conducted outside of the State, and cannot therefore be easily reached except through the customary notice sent to the retailer who buys of such outside parties. These notices have proved to be a very efficient mode of diminishing adulteration. It is not the retailer who is seriously affected by the receipt of such a notice, but the wholesale dealer or manufacturer to whom it is speedily forwarded by the retailer, and who finds that he cannot afford to continue a wholesale imposition. Drugs.-The term "drugs" in the Massachusetts Act of 1882 embraces "all medicines for internal and external use, antiseptics, disinfectants, and cosmetics. 336 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Food and Drug (SUPPLEMENT.) Inspection, Hence the work of the State Board of Health, in this di- rection, has not been confined to the remedies defined in the United States Pharmacopoeia, but has embraced many other articles, and especially empirical preparations of a more or less harmful character. Of the drugs found to be of a specially inferior quality during the earlier investigations of the analysts in 1883' and 1884 were the following : Tincture of opium (U. S. P., 1.20 to 1.60 parts per 100 of morphine), 144 samples out of 197 fell below the required limit of 1.2, and some had as little as .01, .14, .17, or a mere fraction only of the minimum require- ment. Citrate of iron and quinine (legal requirement twelve per cent, of quinine), eighty-five per cent, of the samples had less than the required amount, and several had as little as three and 3.5 per cent., or but little more than a quarter of the requirement. Of powdered jalap only one sample out of twelve conformed to the phar- macopoeial standard. Of 192 samples of powdered drugs, 39 were found to be adulterated in various forms. Of 19 samples of compound spirits of ether, 2 only contained the required amount of the ethereal oil required by the statutes. Of 23 samples of spirit of nitrous ether, scarcely any had the required amount of ethyl nitrite. Twenty-two samples or lots of the quinine pills made by different manufacturers were examined. These were examined in two groups, at an interval of several months, during which time the manufacturers had be- come aware of the work of the Board in this direction. The analysis of the second group showed in nearly every instance an improvement. The following figures indicate the percentages of the required weight of the pills made by nine manufacturers, in the.two series of analyses: Percentage of Adulteration as Given in the Reports of Each Year. England and Wales. Massachusetts Ratio of Ratio o Average Year. adulteration. 5 years. adulteration. Per cent. Per cent. Per cent. 1877 .... 19.2' 1878 17.2 1879 14.8 • 16.2 1880 15.7 1881 14.7, 1882 1883 .... 15.0 44.5 1884 .. .. 14.4 13.9 54.2 1885 13.2 42.4 1886 11.9 38.7 1887 12.8 34.3 1888 10.8 30.3 1889 11-5 12.7 31.9 18^0 11.2 31.5 1891 32.8 First Series. Second Series. 1. 93.5 97.9 2. 86.6 97.3 3. 93.3 99.6 4. 93.8 100.7 5. 107.6 76.5 First Series. Second Series. 6. 84.7 89.5 7. 93.8 101.1 8. 104.4 100.5 9. 97.0 97.1 The foregoing list shows an improvement in each case except two. Of 106 samples of pharmacopoeial spirits and wines, only 10, or 9.4 per cent., conformed to the le- gal requirements. In proof of the improvement under the action of the statutes, very marked changes for the better have been found to have taken place in many of the foregoing ar- ticles. Among the non-pharmacopoeial preparations exam- ined in 1885, were eleven hair-dyes, all of which con- tained lead in large amounts ; also twenty different fraud- ulent nostrums advertised for the cure of the opium- habit, most of which were solutions of morphine. One of them was the so-called " Keeley gold cure," which was found to contain no gold whatever. In 1887 about fifty proprietary articles, sold as tonics and bitters (some of which were advocated as temperance drinks), were ex- amined chiefiy for their alcoholic contents. All -were found to contain alcohol in the proportion of six to forty-eight per cent, by volume. One of these, which was advertised as a remedy for inebriety and the opium- habit, was the celebrated " Scotch Oats Essence," con- taining alcohol and morphine, the latter in varying pro- portions. This nostrum very soon disappeared after its analysis had been published. Cosmetics for the complexion, termed face-bleaches, freckle-lotions, skin-tonics, have been examined and found to consist of strong solutions of corrosive subli- mate. It was required that these, if sold at all, should be labelled as poisons, and sold under careful restrictions only. Seventeen complaints were made against parties selling these articles in violation of the statutes. In the following brief table the ratio of adulteration found in articles of food and drugs in England and in Massachusetts, during the period of inspection and en- forcement of the laws, is presented : Fig. 160.-Diagram showing the Ratio of 1 1877-91, and in Massachusetts, Adulteration in England, s, 1883-91. As a comment upon the foregoing table and diagram the following observations may be made : First. The gradual lessening of adulteration under the action of judicious legislation. Second. The much greater ratio presented in the col- umn headed Massachusetts than in that of England and Wales. The reason for this great difference may be found, first, in the fact that in conformity to the requirements of the statutes in Massachusetts more than half the samples examined were milk. The standard of milk in the State is unusually high as compared with that of other coun- tries (thirteen per cent, of solids, except in May and June, when it is twelve per cent.). Hence it is the cus- tom to report all samples as adulterated which are found to be below the foregoing limits. Now, there are many animals, especially those of the Holstein breed, which habitually produce milk having less than thirteen per cent, of solids. Hence it has not been deemed prudent to enter complaints at court to the full extent of the legal requirements. In the case of milk, therefore, the ratio of adulteration as reported is partially an apparent and not an actual adulteration. Secondly, the samples se- lected under the Massachusetts law are mainly such as are known or suspected to be adulterated, while in Eng- land many samples of such staple articles as bread, flour, sugar, and tea are annually examined, which are prac- tically free from adulteration. In the following table and diagram the articles exani- 337 Food and Drug I nspection. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. ined are classified in three groups, by means of which this element of apparent adulteration in milk is separ- ated: (SUPPLEMENT.) The first group is subject to the following subdivision, (a) Additions have been made to the food products either of a commercial or fraudulent nature, and of substances more or less harmful. (6) The vessel in which the food has been prepared or preserved renders the food poison- ous. (c) The manipulation of food, or its surroundings, may expose it to harmful contamination, (d) It may be mixed accidentally with foreign substances. The second group is subject to the following divisions •. (a) An animal designed for food has been fed with food of a harmful or poisonous character ; the poisons ab- sorbed appear in the milk, or, not having had time to be- come eliminated, either the whole animal or some of its organs have become poisonous, (b) Recognizes the pos- sibility of the formation of poisonous ptomaines in meat, under certain conditions, (c) In consequence of certain unknown conditions wholesome vegetable food occa- sionally becomes harmful. Third group: (a) Animal, vegetable, and mineral food products may be invaded by parasites of the larger kinds, (b) Food may become the prey of micro-organ- isms of a parasitic nature, involving the processes of (1) fermentation, (2) putrefaction and (3) the development of infectious diseases, either of which may render the food harmful, either by infection, by ptomaine poisoning or by the combined action of both, (c) Food contaminated by its surroundings, or by infectious contact, becomes the carrier of pathogenic germs. This list is sufficiently ample to show that the food analyst has a wide field of investigation. The following special regulations regarding food in- spection were published by Dr. Schumacher Kopp, Can- ton Chemist of Lucerne, and also a member of the Inter- national Jury of Award at the Paris Exposition of 1889. The following extract is taken from his report: Collection of Food.-In collecting food the greatest cleanliness should be observed. Clean bottles, and, if possible, new ones, should be used in collecting fluids. Bottles should be closed only with new corks. In collecting drinks, the local experts must be present, and the beverages should be drawn from the regular source of supply. In collecting milk, fill the bottle to the cork ; seal every bottle at once after corking it. If milk is collected in a stable, the cows must be milked quite dry, by a dis- interested person, and in the presence of the local magis- trate, or a policeman. Strong glass, or porcelain, or crockery vessels should be used for the collection of butter. For coffee, tea, and meal, boxes of clean wood or paste- board should be used. The use of paper bags for collecting samples is forbid- den. Bread and sausages should be wrapped in clean wdiite paper ; if possible, parchment paper. The use of printed or colored paper for this purpose is forbidden. Quantity of Food Necessary for Examination.-1. For the local health authority : Beer, one litre ; bread, one whole loaf ; brandy, 0.3 litre ; butter, 50 grammes ; vine- gar, 0.2 litre ; coffee, 30 grammes ; meal, 200 grammes ; milk, 0.5 litre ; cider, 0.5 litre ; tea, 10 grammes ; drink- ing-water, 1 litre; wine, 0.5 litre; small sausages, one whole sausage ; large sausages, 100 grammes ; honey, 50 grammes. For the Canton Chemist the quantities are nearly the same as the foregoing, but in most instances two samples are taken. When two samples are taken, for example, of water, two litres in one bottle are not meant, but twro bottles each containing one litre. Sealing.-The samples collected must be sealed at once upon the spot, with an official seal. This seal must cover the whole head of the bottle, in order to keep the air out, and to avoid leakage. Marking.-The samples should be plainly marked in two different places immediately after collection, one on the neck of the bottle, and the other on the opposite side of the body of the bottle. Each marking must contain : 1, The number and name of the article collected; 2, Percentage of Adulteration in Milk, other Articles of Food, and Drugs in Massachusetts. Years. Milk. Other articles of food. Drugs. 1883 83.9 35.4 40 8 1884 69.1 48.5 36.8 188$ 41.7 43.1 43.3 J 886 36.5 36.2 47.8 1887 38.3 29.4 27.3 1888 39.6 19.2 26.4 1889 38 7 24 0 16 2 189(1 4'2.6 18.6 18.7 1891 40.2 26.4 17.0 Fig. 161.-Diagram showing the Ratio'of Adulteration of Drugs and Different Articles of Food in Massachusetts in the Years 1883-91. Milk, ; other articles of food, ; drugs The ratio of samples of food collected for examination to the whole population for the past five years has been about as follows : In England and Wales, 1 to each 1,000 of the population ; in the city of Paris, 1 to each 120 of the population ; in Massachusetts, 1 to each 375 of the population. The work of a food analyst embraces a variety of branches. In a recent monograph by two French army surgeons, Polin and Labit, the following classification of such work is presented. Three principal groups, as fol- lows : 1. Examination of articles in which the alterations in character are either of a chemical or of a mechanical kind. 2. Those which are biological. 3. Those which are parasitic. 338 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Food and Drug Inspection. name of the jurisdiction authorizing the collection, and of the collector. Provision is made for the collection of two samples when necessary, so that, in case of a dispute, the second may be examined under the auspices of a superior au- thority. The samples sent to the Canton chemist must contain no information as to their source. A report must also be sent to the Health Officer, stating the arti- cles collected, the date of their collection, name of the dealer, his source of supply, and in every case his re- marks upon the character of his goods. This report must be signed by the local expert and by the police as- sisting in the collection. All samples sent to the Canton chemist must be so packed with sawdust, paper, or wad- ding, that they may be transmitted without injury. The name of the sender must accompany all packages, letters, etc., and they must be prepaid ; otherwise they will not be received. In sending milk to the Canton chemist, observe espe- cially : 1. That the milk is thoroughly cooled in cold water before it is forwarded. 2. (a) In the accompany- ing report mention must be made first of the number of cows from which a sample of mixed milk is taken ; (b) how many cows, if any, are in the stable which have •calved within fourteen days of collection of the milk ; (c) how many cows, if any, are near the time of calving. Food Standards.-Bread.-The water in a freshly baked loaf of bread should not be more than thirty per cent, of its weight, and the ash, after deducting the com- mon salt, should not be more than one per cent. Butter.-This name should only be associated with the fat which is made from milk only. Artificial butter must be properly marked as such, being designated as margarine, and packed in separate parcels. Such names as " cheap butter," " tub butter," and " Alpine butter," are forbidden, except as applied to pure butter. Vinegar must contain- four per cent, of acetic acid. The addition of other acids, flavoring matter, and ani- line colors, is forbidden. Honey must be called honey only when it is free from adulteration. Such terms as "table honey," "Swiss honey," and " Appenzell honey," etc., are forbidden, except when applied to pure honey. Substitutes for honey, such as syrups, etc., and also mixtures of these with pure honey, must be plainly marked as such. Coffee must not yield more than four per cent, of ash (Mocha, eight per cent.). Artificial coloring is to be re- garded as adulteration. Mixtures of coffee with other substances are not to be called coffee. Rye-meal should not yield more than two per cent, of ash. Wheat meal should not yield more than one and a half per cent, of ash. The water of rye- and wheat-meal should not be more than fifteen per cent, of its weight, and that of other meals eighteen per cent. Milk.-Milk must be sold as drawn from the cow. Its specific gravity at a temperature of 15° C. (60° F.) before skimming should not be less than 1.029 nor more than 1.033, and when skimmed after twenty-four hours it should not be less than 1.033 nor more than 1.037. The chemical examination should show at least 11.5 percent, of solid residue, and at least three per cent, of fat.* When taking milk at dairies for comparison, it is desira- ble to have examinations made within the shortest possi- ble time, three days at the longest, and the cows should be milked dry by disinterested persons. " Centrifugal " milk should be marked as such, and when inspected at a temperature of 15° C. should have a specific gravity of from 1.034 to 1.037, and should have at least 8.4 per cent, of solids. The sale of the milk of sick cows is for- bidden, as well as that of cows within eight days before and after the time of calvipg. Cider, after fermentation, must not- have less than three per cent, by weight, and 3.76 per cent, by volume (SUPPLEMENT of alcohol, and not less than 1.5 per cent, of solids, nor less than .15 of one per cent, of ash. Tea must not have more than seven per cent; of ash. Water for domestic use must neither have color nor sediment. Nor should it have smell or bad taste. Water containing infusoria and bacteria should be avoided. Sausages should be made only of healthy, fresh meat, fat, and spices in general use. Any additions of starches are considered as adulterants. Propriety of International Laws on the Sub- ject of Food Inspection.-Dr. Von Hamel Koss ex- pressed his opinion, at the International Congress of Hy- giene at London, in 1891, that a codex alimentarius should be adopted for civilized nations, as agreed upon by a competent commission for general use. He commented upon the different standards of different countries, and as an example quoted the milk standard of Massachu- setts, which is thirteen per cent, of solids (twelve per cent, in May and June), while milk having 11.5 per cent, solids is deemed to be pure in Holland. At the International Congress of Agriculture at The Hague, in the following month (September, 1891), con- clusions were formulated as to the need of uniform laws relative to food adulteration and the protection of food products. It was then voted " that each State should establish a commission of competent men, who should be charged with the duty of investigating the methods of analysis in use, and of determining the proper methods of such analysis, and that each State should publish an annual report of its proceedings and exchange reports with other States." United States.-Recent attempts have been made to se- cure national legislation for the general prevention of food and drug adulteration in the United States, but thus far the only articles which have become the subjects of such legislation are butter and lard. The following bill, usually known as the Paddock Bill, was reported to Congress in 1890, and in many respects resembles that which was reported in 1880. Its pro- visions are reasonable, and not as stringent as those which are in force in some of the States, since knowl- edge of the fact of adulteration on the part of the vendor must first be proven to secure conviction under this Act. A Bill for Preventing Adulteration and Misbranding of Food and Drugs, and for other Purposes.-Be it en- acted, etc. Section 1. That, for the purpose of pro- tecting the commerce in food-products and drugs be- tween the several States and Territories of this Union and foreign countries, the Secretary of Agriculture shall organize in the Department of Agriculture a division to be known as the food division, and make necessary rules governing the same to carry out the provisions of this act, and appoint a chief thereof, at a salary of $3,000 per annum, whose duty it shall be to procure from time to time, under rules and regulations to be prescribed by the Secretary of Agriculture, and cause to be analyzed or examined samples of food and drugs sold or offered for sale in any State or Territory other than where manu- factured. The Secretary of Agriculture is hereby au- thorized to employ such chemists, inspectors, clerks, laborers, and other employees as may be necessary to carry out the provisions of this act. Sec. 2. That the introduction into any State or Terri- tory from any other State or Territory or foreign country of any article of food or drugs which is adulterated within the meaning of this Act is hereby prohibited, and any person who shall wilfully and knowingly ship, or deliver for shipment, from any State or Territory or foreign country, to any State or Territory, or who shall knowingly receive in any State or Territory from any other State or Territory or foreign country, or who, having so received, shall deliver, for pay or otherwise, or offer to deliver to any other person, any such article so adulterated within the meaning of this Act, shall be guilty of a misdemeanor, and for such offence be fined not exceeding $200 for the first offence, and for each sub- sequent offence not exceeding $300, or be imprisoned not * The standard of whole milk in Paris is a minimum of 11.5 per cent, of solids and 2.7 fat. That of the British Society of Public Analysts is 11.5 total solids and 2.5 fat. That of the State of New York is 12 per cent, of solids and 3 per cent, of fat. Of New Jersey 12 per cent, of sol- ids. Of Massachusetts and New Hampshire, 13 per cent, of solids. 339 Food Inspection. Friedrichroda. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. exceeding one year, or both, in the discretion of the court. Sec. 3. That the chief of said food division shall make, or cause to be made, under rules and regulations to be prescribed by the Secretary of Agriculture, ex- aminations of specimens of food and drugs which may be collecteel from time to time, under rules and regula- tions to be prescribed by the Secretary of Agriculture under its direction in various parts of the country, and publish in bulletins the result of such analyses. But the names of manufacturers or vendors of such foods or drugs analyzed shall in no case be published in such bulletins until after conviction in the courts of violation of this Act. If it shall appear from such examination that any other provisions of this Act have been violated, the Secretary of Agriculture shall at once cause a report of the fact to be made to the proper United States Dis- trict Attorney, with a copy of the results of the analysis duly authenticated by the analyst under oath. Sec. 4. That it shall be the duty of every district attorney to whom the food division shall report any violation of this Act to cause proceedings to be com- menced and prosecuted without delay for the fines and penalties in such case provided, unless, upon inquiry and examination, he shall decide that such proceedings cannot probably be sustained, in which case he shall re- port the facts to the food division. Sec. 5. That the term " drug," as used in this Act, shall include all medicines for internal or external use. The term " food," as used herein, shall include all articles used for food or drink by man, whether simple, mixed, or compound. Sec. 6. That for the purposes of this Act an article shall be deemed to be adulterated- In case of drugs : First. If, when sold under or by a name recognized in the United States Pharmacopoeia, it differs within the knowledge of the seller from the standard of strength, quality, or purity according, to the tests laid down therein. Second. If, when sold under or by a name not recog- nized in the United States Pharmacopoeia, but which is found in some other pharmacopoeia or other standard work on materia medica, it differs within the knowledge of the seller materially from the standard of strength, quality, or purity, according to the tests laid down in said work. Third. If its strength or purity fall below the pro- fessed standard under which it is sold. In the case of food or drink : First. If any substance or substances has or have been knowingly mixed and packed with it so as to reduce or lower' or injuriously affect its quality or strength, so that such product, when offered for sale, shall be calculated and shall tend to deceive the purchaser. Second. If any inferior substance or substances has or have been knowingly substituted wholly or in part for the article, so that the product, when sold, shall be calculated and shall tend to deceive the purchaser. Third. If any valuable constituent of the article has been knowingly wholly or in part abstracted, so that the product, when sold, shall be calculated and shall tend to deceive the purchaser. Fourth. If it be an imitation of and knowingly sold under the specific name of another article. Fifth. If it be knowingly mjxed, colored, powdered, or stained in a manner whereby damage is concealed, so that such product, when sold, shall be calculated to de- ceive the purchaser. Sixth. If it contain within the knowledge of the seller any added poisonous ingredient or any ingredient which may render such article injurious to the health of the person consuming it. Seventh. If it consist within the knowledge of the seller of the whole or any part of a diseased, filthy, decomposed, or putrid animal or vegetable substance, or any portion of an animal unfit for food, whether manufactured or not, or if it is the product of a dis- eased animal, or of an animal that has died otherwise (SUPPLEMENT.) than by slaughter : Provided, That an article of food or drug which, does not contain within the knowledge of the seller any added poisonous ingredient shall not be deemed to be adulterated- First, in the case of mixtures or compounds which may be now or from time to time hereafter known as articles of food under their own distinctive names, and not included in definition fourth of this section ; Second, in the case of articles labelled, branded, or tagged so as to plainly indicate that they are mixtures, compounds, combinations or blends ; Third, when any matter or ingredient has been added to the food or drug because the same is required for the production or preparation thereof as an article of com- merce in a state fit for carriage or consumption, and not fraudulently to increase the bulk, weight, or measure of the food or drug, or conceal the inferior quality thereof ; Fourth, where the food or drug is unavoidably mixed with some extraneous matter in the process of collection or preparation. Sec. 7. That every person manufacturing, offering, or exposing for sale, or delivering to a purchaser any drug or article of food included in the provisions of this Act shall furnish such drugs or article of food to any per- son interested or demanding the same, who shall apply to him for the purpose, and shall tender him its value, of a sample sufficient for the analysis of any such article of food which is in his possession. And upon the pres- entation of such drug or article of food to the proper officer of the food division by a responsible person, with a request from such person for an official analysis of the same, the chief of such division shall make, or cause to be made, such analysis of the drug or article of food so presented, under rules and regulations to be prescribed by the Secretary of Agriculture. Sec. 8. That whoever refuses to comply, upon de- mand, with the requirements of section seven of this Act shall be guilty of a misdemeanor, and, upon conviction, shall be fined not exceeding $100 nor less than $10, or imprisoned not exceeding one hundred nor less than thirty days, or both. And any person found guilty of manufacturing, offering for sale, or selling an adulter- ated article of food or drug under the provisions of this Act shall be adjudged to pay, in addition to the penalties heretofore provided, for all the necessary costs and ex- penses incurred in inspecting and analyzing such adul- terated articles of which said person may have been found guilty of manufacturing, selling, or offering for sale. Sec. 9. That in prosecutions for violations of this Act proof of the act done shall be held to imply knowledge and intent on the part of the accused, unless such knowl- edge and intent shall be disproved on the trial. Sec. 10. That this Act shall not be construed to inter- fere with commerce wholly internal in any State, nor with the exercise of their police powers by the several States. The English Food and Drug Act was quoted with sufficient fulness in the third volume of the Reference Handbook ; hence it is not repeated here. Germany.-After the enactment of the English law, a demand arose in Germany for similar legislation, and a bill was introduced early in 1879, which became a law in May of that year. A very complete inquiry had already been made, in anticipation of this Act, in the year 1878, embracing the examination of 231,478 samples of food, drink, and other articles coming under the proposed law. Of these, 3,508 proved to be adulterated, or 1.5 per cent, only ; 1,538 articles of food were decomposed and unfit for consump- tion, and 3,332 convictions of offenders were secured. Of the whole number, there were 152,043 samples of milk ; 17,628 of beer ; 21,380 of sausages and meat ; 17,203 of flour and bread, etc. A few glaring instances of the use of harmful ingredients were detected. The following is the text of the Act in question : Section 1. The sale of food and articles of consump- tion, as well as the trade in toys, paper-hangings, colors, eating, drinking, and cooking utensils, and petroleum, is to be regulated by this Act. 340 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Food Inspection* Friedrichroda. Sec. 2. The officers of the sanitary police are em- powered to enter any rooms in which the articles com- ing under Section 1 are kept for sale, during the usual business hours, or while the rooms are kept open for sale. They are authorized to take, according to their choice, for the purpose of analysis, samples of the articles com- ing under Section 1, and which are kept in the sale-rooms, or which are sold in public places, upon market-places, squares, streets, or which are hawked about. • If request- ed, part of the sample must be left with the vendor, properly secured or sealed. For the sample the usual price is to be paid to the seller. Sec. 3. The sanitary officers are empowered to make inspections of the premises of persons who have, accord- ing to Sections 10, 12, 13 of this Act, been sentenced to imprisonment, or of rooms in which articles specified in Section 1 are kept for sale, or in which such articles intended for sale are stored. This power of inspection begins with the date at which the sentence takes force, and ceases after three years from the date on which the term of imprisonment ceases, or is remitted. Sec. 4. Sanitary officers, in the meaning of this Act, are the medical sanitary officers, as well as those officers which are nominated as such by the Superior Court of Administration. The central authority of the empire will decide which court has to act as Superior Court of Ad- ministration. Sec. 5. By imperial decree, with assent of the Federal Council, regulations for the protection of health may be framed to prohibit: 1. Certain modes of preparing, storing, or packing articles of food or consumption in- tended for sale. 2. The trade and offering for sale of articles of food or consumption, of certain conditions, or under a name not corresponding to their real condition. 3. The sale and offering for sale for slaughter of animals suffering from certain diseases, as well as the sale and offering for sale of the flesh of animals which are affected with certain diseases. 4. The use of certain substances and colors for the manufacture of wearing apparel, toys, paper-hangings, eating, drinking, and cooking utensils, as well as the sale and offering for sale of articles manu- factured contrary to this regulation. 5. The sale and offering for sale of petroleum of a certain nature. Sec. 6. By imperial decree, with assent of the Federal Council, the manufacture, sale, or offering for sale, of articles intended for adulterating articles of food or consumption may be prohibited or limited. Sec. 7. The imperial decrees, issued under Section 6, are to be laid before the next following session of Par- liament. They are to be put out of force as soon as Parliament so requires it. Sec. 8. Whoever acts contrary to the regulations of Sections 5, 6, is punishable with a fine up to 150 marks (about $35), or with imprisonment. Sec. 9. Whoever, contrary to regulations of Sections 2 to 4, refuses entry to the rooms, the taking of samples, or inspection, is punishable with a fine from 50 to 150 marks, or with imprisonment. Sec. 10. Liable to imprisonment up to six months, and to a fine up to 1,500 marks, or to either of these, is : 1. Whoever, for the purpose of fraud in commerce, imi- tates articles of food or consumption, or adulterates the same by deteriorating them by the subtraction or addi- tion of substances, or gives them the appearance of a better quality. 2. Whoever knowingly sells articles of food or consumption, which are spoiled or imitated, or adulterated according to Section 1, without giving notice of these circumstances, or offers them for sale under a name liable to lead to deception. Sec. 11. If offences mentioned in Section 10 have been committed by negligence, a fine up to 150 marks or im- prisonment is to be inflicted. Sec. 12. Liable to imprisonment, and to loss of civil rights, is : 1. Whoever prepares articles intended for the food of others in such a manner that their consumption is calculated to injure health, also, who knowingly sells, offers for sale, or otherwise brings into circulation as articles of food or consumption such articles which are injurious to health. 2. Whoever intentionally manufact- ures wearing apparel, toys, paper-hangings, eating, drinking, and cooking utensils, or petroleum, so that the probable use of these articles proves injurious to health ; also, who knowingly sells such articles, offers them for sale, or otherwise brings them into circulation. The attempt is punishable- If, through the action, grievous bodily injury,, or the death of any person has been caused, penal servitude up to five years is to be inflicted. Sec. 13. If, in the cases of Section 12, the consumption or use of the articles was liable to destroy health, and if that circumstance was known to the vendor or manufact- urer, penal servitude up to ten years, or, if the death of any person was caused, penal servitude not under ten years, or for life, is to be adjudged. Besides the punish- ment, supervision by the police may be ordered. Sec. 14. If any of the actions indicated in Sections 12 and 13 has been committed through negligence, a fine up to 1,000 marks is to be imposed, or imprisonment up to six months ; and if, by the action, the health of any per- son shall have been injured, imprisonment up to one year; but if the death of any person shall have been caused, imprisonment from one month to three years. Sec. 15. In the cases of Sections 12 and 14, besides the punishment, the confiscation of the- articles which were made, sold, offered for sale, or otherwise brought into circulation, is to be caused, no matter whether the arti- cles belong to the defendant or not; in the cases of Sec- tions 8, 10, and 11, the confiscation may be caused. If in cases of Sections 12 and 14 the prosecution or punishment of any person is not practicable, confiscation of the articles alone may be caused. Sec. 16. In the judgment it may be ordered that the sentence be made public, at the expense of the defendant. On the motion of any defendant who has been found not guilty, the Court has to order the publication of the acquittal; the costs to be paid by the State, unless they are to be paid by the prosecutor. In the order the mode of publication is to be stated. Sec. 17. If, for the place where the offence was com- mitted, a public institution for the examination of arti- cles of food or consumption be in existence, the fines im- posed by authority of this law, and as far as the State can dispose of them, go to the fund which provides the cost of maintaining that institution. Bibliogbaphy. The following list contains only The titles of such works upon Food and Drug Adulteration and Inspection as have been recently published : Reports of the Local Government Board of England, 1877-91. Reports of the Paris Municipal Laboratory, 1882 and 1885. Reports of the Canton Chemists of Switzerland, 1890-92. The Analyst, London, vols. 1 to 16, 1877-92. Polin and Labit : Examen des Aliments suspects, Paris. 1892. J. P. Battershall: Food Adulteration and its Detection. New York, 1887. Revue Internationale des Falsifications, six vols. Amsterdam, 1888-92. Bulletins of the Department of Agriculture, Washington, D. C. (Depart- ment of Chemistry). Food and Drink (weekly), London. England, 1892. F. Vacher : The Food Inspector's Handbook. London, 1893. Dr. F. Meyer and Dr. C. Finklenburg : Gesetz betref. den Verkehr mit Nahrungsm., Genussm. und Gebrauchsgegenstanden vom 14. Mai, 1879. Berlin, 1880 ; Verfiilschung der Nahrungs- u. Genussmittel, in Petten- kofer's Handbuch d. Hygiene, 1882. Dr. A. J. Wedderburn : Special Report on the Extent and Character of Food Adulterations, including State and other Laws Relating to Foods and Beverages. Washington, 1892. Samuel W. Abbott. FRIEDRICHRODA. A popular watering-place and climatic resort in Thuringia, Germany. Location.-Friedrichroda is charmingly situated in the " Thunngerwald" near the city of Gotha, and at an elevation of 1,300 feet above sea-level. The pure moun- tain-air, the attractive scenery, the saline waters, and fa- cilities for brine, pine-needle, and other baths all contrib- ute to make it a favorite resort in that section of the country. Access.-The place is now a station on the railroad running from Gotha to Eisenach. Indications.-Friedrichroda is much frequented dur- ing the summer season (May to October) by those af- 341 Friedrichroda. Gall-Bladder. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT). dieted with minor neuroses, anaemia, bronchial and slight pulmonary affections, and scrofula. There are several bathing establishments, with facilities for massage, hydrotherapy, inhalations, etc. The place is also made use of as " Terrainkurort," for the Oertel system. Milk and whey cures are much employed there. Accommodation. - There are hotels and numerous boarding-houses ; also a Kurhaus where music and the usual entertainments are provided. Edmund C. Wendt. FRONTAL SINUSES, DISEASES AND INJURIES OF THE. Osteoma of the Frontal Sinus.-The statis- tics of operations for the removal of these growths con- tinue to show a very high mortality. Thus out of fifty- four cases in which interference to the extent of the re- moval of the bone was carried out, thirty-three per cent, died of meningitis.1 The serious nature of the operative procedure seems to be in direct proportion to the size of the tumor. Hence it is suggested that early interference should be practised.2 Empyema of the Frontal Sinuses.-Intense catar- rhal inflammation of the frontal sinus may give rise to an empyema of the cavity. This may be due to a primary inflammation, in which an acute or chronic obstruction of the infundibulum occurs, and consequent retention of pus. Of forty-eight cases collected and analyzed, in three acute obstruction occurred.3 In four cases hypertrophied turbinated bodies and polypi were found. In fourteen cases injuries by blows, falls, etc., were the primary cause of the affection.4 In one-half the entire number of forty-eight cases there was nothing in either the history or the condition to suggest the origin of the disease, al- though there are strong reasons for believing that it had its origin in some intra-nasal affection which blocked up the infundibulum. The course of the disease may be exceedingly rapid or very slow. In the first instance the empyema is due di- rectly to accumulation of* pus. In the more chronic cases the distention is first caused by the presence of mucus, which afterward becomes changed into muco- pus by bacterial infection. Necrosis following periosti- tis may be one of the results of the diseased condition of the mucous membrane, or it may precede it and act as a cause of the disease. The orbital plate of the frontal bone first yields to the effects of the pressure, and, from its comparative thin- ness, may give way. In this way a swelling at the root of the nose and at the upper and inner margin of the orbit is formed, which may be mistaken for an inflammation and distention of the lachrymal sac. Where necrosis is either the cause or the result of the disease, the swelling may be found at some other portion of the sinus wall. The swelling is usually one-sided, whatever be the situation of the diseased area, for the reason that disease of both sinuses is extremely rare. The symptoms are-frontal headache, the pain fre- quently following the course of distribution of the supra- orbital nerve. Chills, rise of temperature, and a general malaise are also experienced. To these are to be added the symptoms of a severe coryza, with inability to respire through the nose, and discharge of mucus or muco-pus. Lachrymation may be present. Perforation of the sinus may occur posteriorly, in which event circumscribed or diffused septic meningitis may occur. The severity of these symptoms will vary with the acute or subacute character of the case. The chronic cases come on insidiously, with moderate frontal pain and a feeling of distention in that region, and occasional discharge from the nose. As the fluid slowly accumulates there is a tendency to protrusion of the globe of the eye, due to the pressure from above downward and outward. As absorption of the bone proceeds, a sense of fluctuation, at first obscure and afterward more pronounced, is felt. In both the acute and chronic forms, as the contents approach the surface, there occurs infection of the structures overlying the bone; oedema and swelling, with an erysipelatous blush, are observed. In fact these cases may readily be mistaken for true infectious erysipelas. The tumor may vary in size by reason of an occasional partial emptying of its contents through the nose. Among the complications of empyema of the frontal sinuses may be mentioned disturbances of the visual or- gans, brain symptoms, and those referable to the naso- pharyngeal cavity. Diplopia and ptosis are sometimes present. Variations in visual capacity may result from variations in the degree of pressure upon the globe, ac- cording as the neighboring swelling increases or decreases in size ; even total loss of vision has been reported. The empyema, by perforating posteriorly, may give rise to secondary abscess of the anterior lobe of the brain. Cerebral involvement may be preceded by anosmia and symptoms of optic neuritis. As a result of the blocking up of the air-passages, mouth-breathing and a very dis- tressing dryness of Uie pharyngeal cavity are likely to be observed. The sense of smell is lost, and frequently the sense of taste as well. The treatment of empyema of the frontal sinus consists in gaining access to the cavity by making an opening into the anterior wall of the sinus, thoroughly cleaning the same, and then providing for efficient drainage. An exploratory puncture, in case of doubt, may precede the formal operation. In exposing the bone, the incision in the soft parts should commence at the inner extremity of the shaven eyebrow, where no supraorbital notch can be felt (a foramen existing instead), and should extend out- ward not more than an inch from the median line. By this means the vessels and nerves will certainly escape injury (Dawbarn). The opening through the bone may be made by the dental engine and trephine, but a small chisel and wooden mallet will be found to be the mcfet generally available instruments for the purpose. The drainage through the nose is the most important part of the treatment. Soelberg Wells claims to be able to accomplish this without external opening by passing an instrument upward from the nose into the sinus. Save in favorable cases this will be found to be very difficult. In opening into the nose from the floor of the sinus, after the latter has been opened, the operator's little finger should be passed into the nostril of the same side to act as a guide. Through and through drainage, by means of a perforated drainage-tube of rubber, should then be instituted. Mild astringent and antiseptic solutions, such as boro-salicylic or Thiersch's, a saturated solution of bo- racic acid or pyoktan in (2 to 1,000), should be employed? The usual method ol drainage is accom- plished by crushing through into the nasal cavity by the aid of f pair of closed dressing- forceps. It is some times necessary to use considerable force ir effecting this when tht floor of the cavity is quite thick. In a series of experiments upor twenty - one cadavers Dr. R. II. M. Daw barn of New York,6 succeed- ed, in all but one, ir passing a peculiarly beni probe (Fig. 162) dowi the natural passage through the middle meatus, and into the nose, and thence out ol the nostril. A thread is then to be tied to the end of the probe as it projects from the nostril, and the probe is . to be withdrawn. The operator now has a thread which passes from the nostril and nose through the middle Fig. 162. - Dawbarn's Frontal Sinus Probe. The distance from a to b is about half an inch, and that from b to c should be the distance from the in- cision in the eyebrow to the nostril. The latter distance, therefore, will vary much, according to the length of the nose. 342 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Friedrichroda. Gall-Bladder. meatus and infundibulum into the frontal sinus. To this may be attached either a small drainage-tube or a strip of iodoform gauze, and by withdrawing the thread the drain is brought into position. The plan here sug- gested is worth a trial, for if the drainage can be efficient- ly applied by Dawbarn's method, it would be a barbar- ous procedure, in comparison, to crush through the outer plate of bone, as usually taught in the text-books. In the series of forty-five cases collected by Richards, death occurred in six ; one of these perished through albuminuria and another from meningitis. The remain- ing four died from secondary cerebral abscess. George Ryerson Fowler. 1 Z. Kikuze : Centralblatt ftir Chimrgie. 1888, No. 36. 3 J. N. Ischunin : Chirurgitscheski Westmk, Jan., 1890. 3 Richards : Journal of the American Medical Association, vol. xiv., No. 13, 1890. 4 See also Weinlechner, Wiener klin. Wochenschrift, No. 7, 1889. 6 Cholewa : Therapent. Monatshefte, 1891. * Personal communication. GALLACETOPHENONE. This substance has been introduced as a substitute for pyrogallic acid in the treatment of psoriasis and similar skin diseases. A com- mercial name for it is "alizarine-yellow C." Chemi- cally it is a tri - hydroxy-benzene, in which a fourth hydrogen atom has been replaced by an acetyl group. Its formula is CH3CO.C«Ha(OHs). It is prepared by treating pyrogallic acid with acetic acid in the presence of chloride of zinc. It is a pale yellow powder, almost insoluble in cold water, very soluble in hot water, al- cohol, ether, and glycerine. The presence of acetate of sodium increases its solubility in cold water : one drachm may be retained in solution in three and a half ounces of w'ater by the addition of one ounce of sodium acetate. It is a powerful antiseptic ; a one per cent, solution will prevent the putrefaction of chopped meat for twenty- one days. The chief advantage which is claimed for it, as a sub- stitute for pyrogallic acid, is its freedom from irritating and toxic properties. Experiments on animals prove it to be non-poisonous. It has been shown that dogs will bear a dose of one drachm daily for a long time without in- convenience. This is due to the fact that it oxidizes very slowdy. Pyrogallic acid is too rapid and energetic in its action : it has at times caused very serious disturb- ances, and fatal results have followed its external use, these ill effects being due to its intense reducing power, particularly in alkaline solution. Another advantage of the new drug is that it does not soil the linen when used. The use of gallacetophenone in skin disease was in- troduced by Dr. L. von Rekowski, of Professor Nencki's Institute, at Berne (Therapeutische Monatshefte, Septem- ber, 1891). It was used in psoriasis with very satisfac- tory results, the beneficial effects of the treatment being noticed within twelve hours. In a short time the patches become paler and thinner, and desquamation lessens. After ten or twelve days the patches have al- most disappeared, and in two or three weeks a perfect cure is effected. Dr. Hermann Goldenberg, in the New York Medical Journal, February 6, 1892, reports his success with it in several severe cases of long duration. He considers it much superior to pyrogallic acid or chrysarobin, and perfectly harmless. It also proved of service in some cases of eczema. There is no irritation of the skin, nor staining of the skin, hair, or clothing. The drug is used in the strength of ten per cent., as an ointment, with vaseline, or in solution. Beaumont Small. GALL-BLADDER AND DUCTS, SURGERY OF. The domain of surgery has been extended during the last de- cade so as to include the disorders arising from biliary obstructions, which were formerly relegated to the list of irremediable cases. While Bobbs did an operation upon the gall-bladder incidentally, in seeking to remedy a trouble which was not clearly understood, Sims resorted to a measure subsequently, with a distinct object in view, which led to investigations by others, in connection with the gall-bladder, of vast importance. The experiments upon inferior animals, which were made by me, looked to a different result in the disposition of the bile from that which was contemplated, in the external discharge of it through a fistulous opening, by Sims. Winiwarter, without my knowledge, had sought to convey the bile into the intestinal canal, and had thus succeeded in reliev- ing the troubles growing out of obstruction of the com- mon bile-duct. On this line my efforts were directed to clearing up some of the difficulties in the accomplish- ment of a communication from the gall-bladder into the duodenum or the adjacent small intestines. A careful examination of several articles contributed to the second volume of the Handbook, entitled "Cholecystectomy, Cholecystotomy, and Duodenochole- cystostomy," should premise a consideration of the data now presented to the profession. It will be learned that the principles and processes of the various operative procedures were fully elaborated, and the reader will be prepared to comprehend what advances have been made in the surgery of the gall-bladder and ducts since that period. There has been some modification of the differ- ent operations originally undertaken, but no material im- provement in the steps inculcated for cholecystectomy and cholecystotomy ; while new departures are noted principally in the excision of gall-stones from the ducts, and in the attachment of the gall-bladder to different por- tions of the intestinal canal, with a fistulous communica- tion between the former and the latter. .The use of gauze tamponage in operations involving the integrity of the gall-ducts, either around drainage-tubes or without them, has been attended with such favorable results as to commend this procedure to surgeons. While a case re- ported by Lane, and facts occurring in the experience of other operators, lead to the conclusion that the presence of freshly secreted bile in the peritoneum is not attended with any serious consequences, it is certainly very desir- able to prevent its entrance into the cavity of the abdo- men. It is principally with a view to circumscribe the collection of bile from lesions of the ducts, either acci- dental or in operations, that gauze packing in the im- mediate vicinity of biliary exudation has been resorted to of late. When the layers of iodoform gauze are ex- tended from the site of an incised or lacerated duct to the external abdominal opening, it is claimed that it serves to carry out the bile by capillary drainage, even when no drainage-tube is employed. It is further held that by pressure upon the surrounding parts the extravasation of the bile into the structures is obviated, so that in suturing the ducts or the gall-bladder, with or without anastomosis with the intestinal canal, it is a wise precaution to fill up the intervening space with strips of iodoform gauze. The operation of cholecystectomy, which was intro- duced by Langenbuch, has been practised eight times by Terrier, with seven recoveries. Michaux performed this operation in two cases, and both resulted in cure. Daw- son reports a successful cholecystectomy for impacted gall-stones, which were faceted and weighed respectively 79, 80, and 81 grains. Czerny gives two cures by chole- cystectomy, and this process affords highly satisfactory results. Other successful operations have been done in this country and in Europe, and the fatal results have been comparatively small. The number of operations reaches in all nearly one hundred, with a mortality of less than twenty per cent. This operation is contra-in- dicated in cases of obliteration of the ductus communis choledochus. But when this is patent, and there is oc- clusion of the cystic duct, with greater or less disorgani- zation of the gall-bladder, so as to preclude its restoration, it is indicated. Biliary fistulae, from the accumulation of gall-stones, would also warrant cholecystectomy. In view of the favorable results reported, surgeons will not hesitate to avail themselves of this recourse in suitable cases, notwithstanding the opposition of those who have no experience in its performance. The operations of cholecystotomy and cholecystostomy have been practised extensively during the period which has intervened since the publication of my articles in the second volume of the Reference Handbook. The 343 Gall-Bladder and Ducts. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) former designation is applied to those cases in which the obstructions have been removed through an incision in the walls of the gall-bladder and afterward the opening is closed by sutures, when the viscus is either dropped or secured to the edges of the external wound. This last procedure, urged by Sanger and Wolfler, is intended to allow of the escape of bile externally, if the stitches yield, instead of being discharged into the peritoneal cavity. The term cholecystostomy is used for those cases having the incision in the gall-bladder left open and attached to the opening in the parietes, so as to allow of the flow of bile externally. This procedure has been adopted upon the supposition that eventually the bile would find its way through the common duct, and that the external opening might close, either spontaneously, or through the instrumentality of a plastic operation. The results of this procedure have not been always satisfactory, and it is not so free from risk as has been claimed by some who urge its adoption in preference to other measures. It cannot afford more than temporary relief in cases of occlusion of the common bile-duct, and entails upon the sufferer the very condition of a biliary fistula, which has furnished the reason, in many instances, for seeking sur- gical assistance. In two cases of pronounced cholaemia from the closure of the common bile-duct, which have come under my observation, a resort to the operation of cholecystostomy failed to arrest a fatal termination. Al- though in each case there was a free discharge of bile through the opening made by attaching the edges of the incision in the gall-bladder to the sides of the cut in the abdominal wall, no benefit was derived from either op- eration, and both patients (females) died in less than a week after undergoing the operation. It is proper to state, in this connection, that no gall-stones were found in the gall-bladder or in the ducts of either of these pa- tients, and that the obstruction of the common bile-duct resulted from adhesive inflammation of its coats, by which the canal was reduced to a hard, dense cord. The previous history of clay-colored stools and profound jaundice, with distention of the gall-bladder, showed cholaemia in both. The intermediate process of incising the wall of the abdomen only, and attaching the wall of the gall-bladder unopened to its edges, with gauze placed in the wound until adhesions have occurred, when an opening is made into the gall-bladder, has nothing whatever to recommend it. The most instructive digital examination of the gall- bladder and ducts is precluded by this procedure, and it affords no facilities for the removal of obstructions which may exist in the cystic or common ducts. Notwithstand- ing the endorsement by Riedel of the performance of this operation at two sittings, Korte, who has performed it in two cases, prefers* the operation as performed at one sitting, when it is possible. When the ductus choledochus is found free, and the cystic duct can be rid of obstructions, the most satis- factory proceeding is the immediate closure of the incision in the gall-bladder and its return into the abdomen, with- out any attachment to the parietes. This course has now been adopted in a sufficient number of cases, with a good result, to satisfy the' profession of its efficacy in restoring the normal relations of the gall-bladder. Catheterization of the cystic and common bile-ducts has been undertaken in a limited number of cases with satisfactory results. It is held by Terrier and Daily that it is easier under pathological conditions, but the cathe- terization should be undertaken with a clear idea of the normal relations for a guide to the operation. The process of disintegration of biliary concretions by the introduction of a needle into the mass and breaking up its structure, has been found advantageous in dis- lodging obstructions of the ducts. In connection with this, the use of padded forceps or pressure with the thumb and index-finger for crushing the gall-stones, has been attended with good results in some cases. In cases where it is impracticable to unite the gall- bladder with the intestinal canal, an attempt has been made in a few instances to bring about a communication, by incision and suture, between the ductus communis and the duodenum or a coil of the small intestine. A successful case is reported by Sprengel. But the diffi- culties attending this operation offer little encouragement to its repetition. The most striking developments in this department of surgery look to the restoration of the bile to the intestinal canal. None of these procedures is adapted to relieve im- paction of the ducts by gall-stones, or the agglutination of their walls from plastic inflammation of the tissues. Other measures have been resorted to within the past few years, which constitute the most notable advances in the surgery of the gall-bladder and ducts. The excision of biliary calculi, which are so hard as to resist crushing in the ducts, has been practised successfully. After in- cising tlie coats of the cystic or common bile-ducts and removing the concretions by forceps or other means, the opening has been closed by suture, and a satisfactory re- sult has been obtained in a large proportion of the cases reported. Not only has the incision healed kindly, but the duct has conveyed the bile to its proper destination. Incision and suture of the walls of the common bile- duct, with the removal of gall-stones, have been resorted to in thirteen cases, with two fatal results. Three of these operations have been done by Courvoisier, and one by each of the following : Kummell, Heusner, Kuster, Rehn, Braun, Frank, Hocheneg, Thornton, Marcy, and Vander Veer. A stone has also been successfully excised from the cystic duct by Ross. There is a class of cases in which nothing can avail to remove the occlusion of the ductus communis chole- dochus, and the recourse for the surgeon is to secure a communication from the common duct above the ob- struction, or froin the gall-bladder, with the duodenum or some adjacent 'portion of the intestinal canal. The best efforts of operators have been directed to this end of late, and what was foreshadowed in my contribution on duodeno-cholecystostomy seven years ago, has now been realized in a sufficient number of cases to guarantee the future success of this operation. In nothing undertaken during the last decade has the triumph of intelligent ef- fort been so marked as in overcoming the difficulties con- nected with complete obstruction of the common bile- duct. Temporary obstacles may yield to various devices which have been adopted, but the impermeable agglu- tination of the coats of the common bile-duct can only be remedied by opening up a new route for the passage of the bile into the intestinal canal. It is begging the ques- tion to allege that any process can restore the canal when it is permanently occluded by agglutination of its walls. In my opening address, as chairman of the Surgical Section at the meeting of the American Medical Asso- ciation in Detroit, some data upon the surgery of the gall-bladder and ducts were presented which may be appropriately incorporated in this paper. It was demon- strated that all cases of the obstruction of the cystic and common ducts by gall-stones call for their dislodgement by one or another procedure, to afford an outlet for the bile ; and that the attachment of the incision in the gall- bladder to the opening in the wall of the abdomen for a discharge of the bile externally, should be regarded as a mere temporary recourse. In the event of failure to effect an outlet for the bile through the common duct, then cholecystenterostomy is clearly indicated. As to the portion of the intestine which should be selected for the attachment of the gall-bladder or the ductus chole- dochus, we have a definite guide in the entrance of the bile naturally into the duodenum ; and the nearer to this an anastomosis can be effected, the better result may be expected. The relations of the duodenum and jejunum to the gall-bladder, ordinarily, are such as to facilitate their union, and I have given the preference to the duo- denum from physiological considerations as well as from surgical convenience, while objecting to the colon. It is, of course, presumed that there is such an occlu- sion of the common bile-duct as to prove irremediable by other means, before proceeding with an operation to effect an outlet for the bile by uniting the gall-bladder with the intestinal canal. A misunderstanding of this condition has led to misapprehension of the end to be 344 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Gall-Bladder and Ducts. attained by duodeno-cholecystostomy or cholecystenter- ostomy ; and let me say, once for all, it is only warranted by occlusion of the common duct. In this connection the following pointed remarks of Greig Smith upon entero-cholecystotomy, in the last edi- tion of his work on abdominal surgery, place my in- vestigations upon this subject in a proper light before the profession : " By this operation is meant the establishment of a fistula between the gall-bladder and the intestine. The operation is indicated only in cases of incurable biliary fistula ; that is, in cases where there is insuperable occlu- sion in the ductus communis choledochus. The original operation of Winiwarter successfully established a com- munication between the gall-bladder and the colon. In this situation the physiological effects of the biliary se- cretion were lost. Dr. Gaston, of Atlanta, Ga., in a series of instructive experiments on dogs, showed how communication might be established between the duo- denum and the gall-bladder, thus preserving in the sys- tem whatever value the bile may have. Gaston speaks of his operation as duodeno-cholecystostomy. Some misconceptions and misdirected criticisms of Gaston's operation have appeared in various journals ; to those he has given satisfactory answers." In the comprehensive and elaborate record by Cour- voisier of what has been accomplished for the relief of biliary obstruction, he states that my experiments on ani- mals were undertaken in the hope thereby of clearing up the way for a practicable future operation on man. His remarks on this point are quoted : " Gaston sought to utilize the elastic ligature. In five dogs he carried it through the approximated walls of the gall-bladder and duodenum, in such a way that One-half of the tightly drawn loop lay in the former, the other half in the latter. The loop was to cut through both walls at the same time and thus form a fistula between both cavities. At the close of his operations Gaston placed a catgut suture around the place where the walls of the organs lay in apposition. In one animal the adhesions were completed by the eleventh day, and in this case there was a beautiful fistula, while the ligature had passed off through the in- testine. In 1884 Gaston also made an experiment on a young dog with a silk ligature, and obtained a good re- sult. Later on, he repeated these experiments with liga- tion of the common duct, without satisfactory results." Courvoisier further states that Golzi reports five ex- periments on dogs. The common bile-duct was ligated. Then, with a catgut suture, the surfaces of the gall- bladder and the nearest loop of the small intestine were stitched around a loop of suture, passed through each wall so as to cut through. It is stated that the animals bore the operations without material derangement of the digestion.. It is also noted by Courvoisier that Page operated in the same manner as Golzi did on three dogs, omitting, however, the ligation of the common duct. One dog survived, one sank with peritonitis, and the third died after six weeks, showing a considerable shrinkage of the gall-bladder, but without any fistula. The result is not known in the dog which survived. The various procedures adopted by Golzi, Page, and myself were undertaken with a view to guide others in the performance of operations upon human beings. All must allow that the fruit of our experiences has thrown much light upon the intestinal labyrinth in which we groped without a guide to direct us at that period. The difficulties encountered by me in ligating the com- mon bile-duct subsequently, were the greatest obstacles to the final success of this operation, and would not be encountered in case of pre-existing occlusion, which is the occasion of performing an operation on the human subject. These and other experiments, undertaken upon twenty- one dogs, are fully illustrated by the cuts accompanying my contribution upon "Duodeno-cholecystostomy" in the second volume of the Reference Handbook. Ii may be stated that my conception of the procedures indicated was not limited to the means employed in these experiments, and it was distinctly set forth that some other process might be found preferable, and it rests with surgeons to adopt that which proves best. To Nussbaum is attributed the first suggestion of re- lieving the occlusion of the common bile-duct, by dis- charging the bile into the intestinal canal through arti- ficial openings in the adherent walls of the gall-bladder and the intestine. But the credit of having first accom- plished this result upon the human being is undoubtedly due to Von Winiwarter, and it affords me the greatest satisfaction to award him the honor of priority in the execution of cholecystenterostomy in 1881. After a lapse of six years Monastyrski united the gall- bladder with the jejunum on the fourth of June, 1887. He incised the abdominal wall, punctured the gall- bladder, incised its walls and the jejunum, and sew'ed the edges with catgut. A fistulous communication was secured two metres below the duodenum, but death en- sued from carcinoma of pancreas, as verified by autopsy. The operation of Kappeler came next in the order of time, being done on the sixth of July, 1887, by uniting the gall-bladder with the ileum by Wblfler's suture. The patient progressed favorably for a time and returned to work, but eventually died on September 9, 1888, fifteen months after the operation. The autopsy showed that a biliary fistula was established about eight feet from the ileo-csecal valve, and that its intestinal orifice was pro- vided with a valve which allowed the contents of the gall-bladder to pass into the intestine, but prevented the passage of the intestinal contents into the gall-bladder. Doubtless, a similar provision exists in all such cases. In the year following the operation of Kappeler, Fritzche accomplished a fistulous opening from the gall- bladder into the jejunum, three metres below the pylorus. At the post-mortem examination a carcinoma of the size of a walnut was found at the mouth of the common bile- duct. Socin and Bardenheuer each attached the gall-bladder to a loop of the small intestine. The case, of the latter died in the fourth week and no fistula was found. It is said to have been done with elastic ligature. Robson operated, on March 2, 1889, upon a patiept who had undergone a previous cholecystotomy, when the ducts were freed and the gall-bladder was sutured to the abdominal wall with firm adhesions. The common duct being subsequently occluded, an incision was made through the scar from the former operation, in the semi- lunar line, and it was found that the attachment of the gall-bladder could only be effected with the colon. Both were incised and united with chromicized catgut in two rows. The former external fistula was sewed up and a drainage-tube inserted in the wound. After one day bile came out of the drainage-tube, and also fecal matter came from the intestinal wound, mixed with bile, on March 5th. Afterward, up to the 18th, faeces and bil^continued to be discharged, and then bile alone, the wound granulating and ultimately completely closing on May 6th, when the motions were noticed to have regained their normal color. The patient reported herself in July as in perfect health. Robson states that, "although Dr. Gaston proved the possibility of affixing the gall-bladder to the duodenum in dogs, and although this has been shown practicable in the human subject by Terrier's operation," he found that the difficulties are much greater than if a loop of the small intestine be selected. On July 13, 1889, Terrier performed an operation for the relief of occlusion of the common duct. An incision was made in the median line, above the navel. The gall- bladder was punctured and the bile discharged. Upon incising its walls and exploring its cavity no stones were found, and the cystic duct was open. There was a gall-stone impacted in an oblong enlargement of the common duct which could not be removed. After at- taching the gall-bladder to the duodenum by an oblong row of catgut sutures, and before tying the last stitches, the walls of both were incised and a rubber drainage- tube was introduced, so as to pass from the cavity of the gall-bladder into the duodenum. The fundus of the gall-bladder was sutured to the lower angle of the 345 Call-Bladder and Ducts. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT. external incision, which was then closed by a catgut suture. There was fever until August 1st, but the itch- ing and jaundice gradually disappeared. The drainage- tube passed off with the evacuations nine days after the operation, and the stools gave evidence of the presence of bile. The external wound healed up by first intention. The patient was dismissed on August 10th, in ordinary health. The patient died in the spring of 1890, from in- fluenza, and no gall-stone was found in the common duct. Courvoisier, in like manner with Robson, performed the operation of natural cholecystotomy upon a patient without getting a satisfactory result. After the lapse of a year complications arose, which demanded cholecys- tenterostomy, and this was done March 28, 1890. An incision was made through the abdominal wall, below'the ribs, along the border of the liver. The gall-bladder w'as detached from the abdominal wall, and after incising the sac a gall-stone was removed from the common duct and others were scraped from the hepatic ducts. An in- cision into the lower surface of the gall-bladder was united to the colon by an oval row of catgut sutures, and before putting in the last stitches the wall of the colon was incised. The fistulous parts of the gall-blad- der wTere cut away and the edges stitched up. Two drainage-tubes were inserted and the external wound closed around them. There was no fever after April 2d. Bile was found on the dressings, but its source was not determined. There was bile in the stools on April 6th, and on the 8th the drainage-tubes W'ere removed and the external wound was stitched up. On April 15th the patient was free from jaundice and got up feeling very w'ell. The case was dismissed about the middle of May, and in July her condition was good. A successful case of cholecystenterostomy has been reported, on February 25, 1892, as done by Helferich. The patient, a man, aged twenty-nine, had suffered periodically from pains in the stomach since 1885, and developed jaundice in April, 1891. During the follow- ing month he had attacks of biliary colic, recurring every fortnight, the jaundice being marked after each attack. It was thought that the common duct was obstructed by calculi, and an operation for their removal was under- taken in November. An incision was made midway be- tween the lower border of the ribs and the border of the enlarged liver, extending vertically in the linea alba to the ensiform cartilage. After the liver had been retracted, the gall-bladder came into view ; it contained no calculi, but an examination disclosed a number of calculi in the common bile-duct, which it was found impracticable to remove. An opening was therefore rriade in the gall- bladder and another in the first part of the jejunum, and a communication was established between these two struct- ures by suturing the corresponding margins of the aper- tures. The fistula thus formed was of the calibre of a lead-pencil. Tfie patient made a rapid recovery, with disappearance of the jaundice. Korte reports a favorable result of the union of the gall-bladder with the wall of the duodenum, after the process of Terrier, thus affording two successful cases of duodeno-cholecystostomy. He states that the patient, after having shown total acholia in the faeces for four weeks, was operated upon. He was, however, unable to lay bare the choledochus, and it remained uncertain as to whether the obstruction was caused by stones or cicatricial stenosis ; the indica- tions were, however, in favor of the latter diagnosis. Finding himself completely thwarted in his efforts to lay bare the gall-passages, he determined to establish an anastomosis between the'gall-bladder and the duodenum. He sewed the gall-bladder to the bowel, opened both organs, and then stitched the edges of the cuts together. The act of applying a suture so deep in the abdominal cavity constituted not only a difficult, but most tedious, undertaking. For the sake of precaution he wound a strip of iodoform gauze around the suture and kept part of the abdominal wound open. The suture uniting the gall-bladder and intestine healed well and the bile began to flow into the intestine. No bile was ever discharged through the wound to mar the cure. Richelet performed this operation in one case. The gall-bladder was secured to the duodenum. The results were not very satisfactory, biliary retention persisted, and a second laparotomy was performed, the gall-bladder was opened, and an effort was made to extract the calculus. This resulted in a hemorrhage so severe that death re- sulted in an hour. At the autopsy it was found that the forceps had seized a calculus, which was so firmly ad- herent that its displacement had caused tearing of the gall-bladder and had resulted in hemorrhage. A case of temporary cure is reported by Czerny for oc- clusion of the choledochus by the operation of chole- cystoduodenostomy. This makes four recorded opera- tions by the process which I have designated as duodeno- cholecystostomy, with favorable results in three of the cases ; and the miscarriage in the fourth case was due to an accidental lesion in the extraction of a gall-stone by forceps in the performance of a second laparotomy. It is evident in this case that. Richelet had overlooked an essential condition for success in his first operation, by attaching the gall-bladder to the duodenum without taking the precaution to remove the calculus from the cystic duct. Cholecystocolostomy was performed in one case by Czerny, in occlusion of the ductus choledochus by a cal- culus. The immediate result of the operation appeared satisfactory, but death occurred two weeks afterward from hemorrhage. Another operation reported by Czerny presents feat- ures of interest, which warrant a record of some details of this case of cholecystenterostomy after temporary cholecystotomy. A vertical incision was made through the right rectus muscle. The enlarged blackish-yellow liver presented itself in the opening, and on its side was the very tense gall-bladder of the size of a fist. Puncture of the latter yielded 300 c.c. of a clear, watery fluid. The sound could be entered a distance of 14 ctm. through this puncture without meeting with calculi, but its further progress was arrested by some obstruction. Neither concretions nor any tumors could be detected by palpa- tion. An obstruction of the ductus choledochus was suspected, but no cause could be found for it, and a temporary biliary fistula, opening externally, was estab- lished in place of the cholecystenterostomy, in order to remove if necessary, later on, the obstruction in the duct, through the gall-bladder. The peritoneal cover- ing of the gall-bladder was stitched to the parietal peri- toneum. A part of the abdominal incision wras closed, and the opening in the gall-bladder occluded by applying a Pean clamp forceps. Two days after the operation, when the dressing was changed for the first time, 500 c.c. of pure bile rushed forth as soon as the Pean for- ceps was removed. The unknown obstruction in the ductus cysticus was thus removed. Pure bile was now discharged regularly, but in spite of this, the existing icterus diminished but slowly, and never disappeared en- tirely ; the urine contained, continually, more or less bile, and the faeces were entirely acholic. Therefore, the occlu- sion seemed not to have been perfectly removed, and chole- cystoenterostomy was performed two months after the establishment of the fistula. The fistula was now tempo- rarily closed by sutures, and the existing opening into the abdominal cavity was elongated above and below. The separation of the gall-bladder from the parietes could not be accomplished without injuring its walls, which had several rents. The injured part of the wall of this organ was extirpated, and the resulting circular opening was diminished by two rows of catgut sutures to the size of a bean. A loop of small intestine was then drawn out and united to the posterior wrall of the gall-bladder by means of five sutures in the serosa. An incision ctm. long was then made in the small intestine, thirteen anterior and posterior sutures through the mucosa were inserted, and finally nine sutures through the serosa were applied. Drainage was effected by means of iodoform wick, and the abdominal wound was closed around it. Temporary improvement followed. Soon afterward, however, the patient sank rapidly and death took place 346 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT. Gall-Bladder and Ducts. from exhaustion, induced by cancer of the pancreas, gan- grene of the lungs, and other complications. The fatal result occurred three months after the operation, and hence was not a direct consequence of the union of the gall-bladder and the intestine. An interesting case, in which an anastomosis between the gall-bladder and colon was effected by a process differing materially from the previous operations has been reported by Chavasse. A man, forty-eight years old, had undergone cholecys- totomy for relief of jaundice dependent upon biliary ob- struction by calculi, which was followed by the persist- ence of a biliary fistula. Other means failing, with the aid of Senn's bone-plates, a communication was estab- lished between the gall-bladder and the colon at its he- patic flexure. At first, bile and fecal matter were dis- charged through the abdominal wound, but ultimately this closed, the stools were passed naturally, and the general condition of the patient was much improved. Further experience with this process may prove as satisfactory as its use in intestinal anastomosis. The in- creasing interest exhibited by surgeons in the serious consequences resulting from any obstruction to the dis- charge of bile is strikingly manifested by these aggres- sive measures, and a new era has dawned upon gall- bladder surgery. A revolution has been brought about not only in the theoretic views of surgeons, but in the appliances resorted to in the surgery of the gall-bladder and ducts, which encourages the expectation of obtaining a satisfactory solution of the problem of relief for occlusion of the common bile-duct. "A comparison," says Robson, "of the statistics of the different operations on the gall-bladder, as collected by Dr. Delaganiere, would seem to show that although ciiolecystenterostomy is apparently the most compli- cated, it is the least dangerous operation." The practicability of effecting an outlet from the gall- bladder into the duodenum or the intestinal canal, can no longer remain in doubt, and in the view of Courvoisier this operation stands more and more securely as the details from trustworthy sources become more widely disseminated. Excluding from the reported cases those of a cancerous nature, all should be content with the results of the vari- ous procedures for uniting the gall-bladder and the com- mon duct with the duodenum and intestinal canal. The inferences to be drawn from a study of the results obtained in surgery of the gall-bladder and ducts are the following : 1. In all cases presenting a history of biliary obstruc- tion with manifestation of enlarged gall-bladder, explo- ratory incision of the abdominal wall, and, conditionally, of the gall-bladder, is warranted. 2. When obstructions of the cystic and common ducts from gall-stones are found, they should be removed by needling, crushing, or incision of the duct and suturing the wound. 3. In case of the presence of a gall-stone in the cystic duct without impediment of the common duct, after re- moving the obstruction from the former, it would favor the restoration of normal conditions to close the incision in the walls of the gall-bladder without attachment to the parietes. 4. Should there be a degenerated or disorganized state of the coats of the gall-bladder, precluding the perform- ance of its functions, the extirpation of the sac "with ligation of the cystic duct will be proper. 5. Under circumstances of doubt as to the permea- bility of the cystic and common ducts, catheterization should be attempted with flexible bougies, guided by the fingers outside of the ducts. 6. In the event of an impermeable stricture or perma- nent obstruction of the common bile-duct, with a patu- lous cystic duct and good condition of the walls of the gall-bladder, the latter may be attached to the duodenum or adjacent portion of the small intestine, so as to effect a communication and thus admit of the passage of the bile. 7. Should the walls of the gall-bladder be likely to undergo disintegration and the walls of the common duct above the obstruction be in a favorable state, an incision in the duct may be united by suture with an incision in the duodenum or other part of the intestinal canal, to give exit to the bile. 8. While the results of a communication of the gall- bladder or common bile-duct with the duodenum or the upper part of the small intestine have proved more salu- tary than with the large intestine, there are cases in which the connection with the last named is alone prac- ticable, and should be resorted to in preference to estab- lishing an external fistulous opening. 9. Experiment has demonstrated the practicability of securing a union of the walls of the gall-bladder and duodenum with an opening by a single stitch of silk or elastic ligature, but the operations upon the human sub- ject, attended with the best results, have been by inci- sion and suture, with gauze tamponage. 10. The great importance of restoring the bile to the alimentary canal, in all cases of permanent occlusion of the common bile-duct, renders it desirable that an opera- tion shall be undertaken at the earliest practicable period after obstruction to the flow of the bile into the duode- num is recognized as tending to cholaemia. 11. Cholecystotomy and cholecystostomy are not ade- quate to the relief of occlusion of the common bile-duct, and duodeno-cholecystostomy or cholecystenterostomy is indicated wherever it is evident that there is no outlet "for the bile into the alimentary canal by the natural channel. 12. In the advanced stage of cholaemic intoxication from occlusion of the common bile-duct, there is such vital depression as to preclude any benefit from an opera- tion, and it is only calculated to bring discredit upon the surgery of the gall-bladder and ducts to operate under such untowrard conditions. In 1889, Dastre communicated his experiments to the Physiological Congress at Basel, in which he united the gall-bladder with the intestinal canal with a view to study the effects on digestion. It was demonstrated that an ani- mal can live without suffering from the loss of a portion of the bile from the upper part of the small intestines, and that a smaller quantity of bile than the natural secre- tion or excretion is sufficient for digestion. But the practical inference of most importance in connection with his experiments, is the feasibility of effecting a communication from the gall-bladder into the intestinal tract by incising and suturing their walls together in cases of total occlusion of the common bile-duct. As in most cases requiring cholecystenterostomy it is requisite to make an incision of the wall of the gall- bladder for the removal of calculi from its cavity, or for proper exploration of the ducts, it is very desirable that some speedy process for suturing the edges of this inci- sion to those of a like incision in the coat of the in- testine shall be adopted. If mechanical devices can be dispensed with entirely in the junction of the gall-bladder and intestinal canal, and thus allow a free outlet for the bile, it is a consummation devoutly to be wished for in the performance of this important operation. Lambotte reports a case, in the Belgian Medical Press of July 3, 1892, of external biliary fistula, resulting from cholecystostomy, for which he performed a unique operation. An incision was made in the abdominal wall in close proximity to the fistula, and a portion of the colon was drawn out through it. He then availed himself of the enterotrite of Dupuytren to effect a com- munication from the fistulous tract into the bowels, thereby conveying the bile off through the colon, instead of letting it flow out through the abdominal wall. The external fistulous opening was subsequently obliterated by a plastic operation. The instrument presented by Grant at the late meet- ing of the Southern Surgical and Gynecological Associa- tion, at Louisville, Ky., for effecting intestinal anasto- mosis, meets the indications more satisfactorily than that of Dupuytren, for uniting the gall-bladder with the in- testine. Although the author had not even suggested this application of his instrument, the writer submits 347 Gall-Bladder and Ducts. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) that a modification of the blades of this clamp, of such a nature that they can be carried through a small incision into the cavity of the gall-bladder and into the duode- num, or other portion of the intestine, would admit of the use of this instrument in effecting anastomosis of these viscera, and also in lateral intestinal anastomosis without resection. A paper read before the Mississippi Valley Medical Association, October 15th, by Dr. J. B. Murphy, of Chi- cago, Ill., and published in the New York Medical Rec- ord of December 10, 1892, presents the details of a process styled " button anastomosis." It is the applica- tion of this procedure in cholecysto-intestinal operations which is of special interest for our investigation. While this principle of anastomosis is not entirely new, having been adopted by another for uniting the viscera with an opening from one to the other, and by the writer in a case of gastrostomy reported at the Nash- ville meeting of the American Medical Association in 1890, yet the improvements in the mode of construc- tion entitle Dr. Murphy to the claim of originality in the practical adaptation of the anastomosis button to this class of operations. I have the permission of the author to use his cuts for illustration. He.gives the following description of this device : The buttons are made in three sizes. A button con- sists of two small circular bowls (Fig. 163) ; size No. 2 measures as follows: diameter, 23 mm. ; depth, 8 mm. There is " sweated" into a circular opening, 12 mm. in diameter, at the bottom of one bowl, a cylinder 15 mm. in length, with female screw thread on its entire inner surface. The cylinder extends perpendicularly from bottom of bowl. There is an opening in the male bowl in which is " sweated " a similar and smaller cylinder of a size to easily slip into the female cylinder. There are two brass springs soldered on either side of the inner surface of the lower end of the male cylinder, which extend almost to the top, where small points of them protrude through openings in the cylinder. These points are designed to catch the screw-thread when the male cylinder is pressed into the female cylin- der, and thus hold the bowls together at any point desired. To separate them again, they are simply un- screwed. ach is operated on. There are four openings, 5 mm. in diameter, in the side of each bowl, for the purpose of drainage. By this, it will be seen, we have two hemi- spherical bodies held together by invaginating cylinders (Fig. 163). These hemispheres of the button are inserted in slits or ends of the viscera to be operated on. A run- ning thread is placed around the slit in the viscus, so Fig. 164.-Showing Running Thread before (a) and after (6) Incision in Bowel. (After Murphy.) that when it is tied it will draw the cut edges within the clasp of the bowl. A similar running thread is applied to the slit in the viscus into which the other half of the button is inserted, and the bowls are then pressed to- gether. The pressure-atrophy at the edge of the bowl is produced by the brass ring supported by the wire spring. The opening left after the button has liberated itself is the size of the button. Dr. Murphy claims that this differs from all other de- vices in the following particulars or combinations there- of : 1, It retains its position automatically ; 2, it is entirely independent of sutures ; 3, it produces a press- ure-atrophy and adhesion of the surfaces at the line of atrophy ; 4, it insures a perfect apposition of surfaces, without the danger of displacement; 5, it is ap- plicable to the lateral, as well as to the end-to-end, approximation : 6, it produces a linear cicatrix, and thus insures a minimum of contraction ; and 7, it has the merit of extreme simplicity of technique, which makes it a specially safe in- strument in the hands of the every-day practi- tioner, as well as the more dexterous specialist. Dr. Murphy then describes the mode of applica- tion. The button is inserted in the following manner : An incision is made from the edge of the rib, two inches to the right of, and parallel to, the median line, extending downward three inches. The gall-bladder is drawn into the wound, and also the duodenum. The duodenum is cleared of its contents by gentle pressure with the finger. His short intestinal compres- sion forceps is placed upon the duodenum to prevent the escape of gas and fluids after the incision is made. A needle with fifteen inches of silk thread is inserted in the duodenum, directly opposite its mesentery and at a point near the head of the pancreas. A stitch is taken through the entire wall of bowel, one-third the length of the in- cision to be made. The needle is again inserted one- third the length of the incision from its outlet, in a line with the first, and brought out again, embracing the same amount of tissue as the first (Fig. 164). A loop three inches long is held here, and the needle is inserted in a similar manner, making two stitches parallel to the first in the reverse direction, and one-eighth of an inch from it, coming out at a point near the original insertion of the needle (Fig. 164). This forms a running thread which, when tightened, draws the incised edge of the Tig. 163. Appearance of Button, with and without Spring-cup Attach- ment. (After Murphy.) A small brass ring, with a thin though not cutting edge, to which is attached a wire spring, is placed in the male bowl and retained in position, projecting one- eighth of an inch above the edge of the bowl. This is held up by the wire spring, and is there for the purpose of keeping up continuous pressure until the entire tissue between the edges of the bowls is cut off. This spring attachment is absolutely necessary only when the stom- 348 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Gall-madder and Ducts. bowel within the cup of the button. In the gall-bladder a similar running thread is inserted. An incision is now made in the intestine, two-thirds the length of the diam- eter of the button used. The button is slipped in, in the manner hereafter to be shown, the running string tied, and the button held with the forceps. The contents of the gall-bladder are withdrawn with an aspirator. An incision is then made in the gall-blad- der of the same length, and between the rows of sutures, the button is inserted in a similar manner, and the run- ning string tied. The serous surfaces to be approximated are scraped with the edge of a scalpel. The forceps is then removed and the two halves of the button are held be- tween the fingers and pressed together (Fig. 165). A suf- ficient degree of pressure must be used to bring the serous surfaces of the gall-bladder and intestine firmly in contact and maintain pressure upon them. The elastic pressure of the spring-cup of the button produces a pressure-atrophy of the tissue embraced within the cup, and leaves an opening as large as the button, the latter dropping into the bowel and being passed through the intestines. The time occupied in the case of the first woman on (SUPPLEMENT). of allowing the bile to re-enter the intestine should be welcomed by the surgeon and the patient. Dr. Murphy gives the result of five experiments upon dogs by uniting the gall-bladder and the duodenum with his anastomosis button, in three of which the animals were killed after the lapse of a month or more. It was found that the button had escaped, leaving an opening from the gall-bladder into the duodenum, with perfect union between their walls, and a valve was formed on the intestinal side of the opening by two folds of the mucous membrane closing over it, permitting the bile to flow out, but preventing the entrance of anything from the intes- tine. The writer would recall to the reader that this valvular provision was observed in the case operated upon by Kappeler, and reported in his description of the autopsy, the patient having died fourteen months after the cholecystenterostomy. In one of the dogs, which was subjected to the same operation w'ith the others, the additional experi- ment of tying the common duct was made and the result examined on the fourth day. A perfect adhesion of gall-bladder to bowel was found and the button was wnom ne operated was eleven minutes, from the entering of the peritoneal cavity until the closing of the same. On dogs he was from eleven to eighteen minuteain performing the operation. He states that the operation is more difficult to per- form on the dog than on man, as it is more dif- ficult to bring the gall-bladder into the wound. Dr. Murphy draws attention to the number of cases of chronic jaundice from obstruction to the common gall-duct, requiring some operation for relief, and to the defects of the operations now in vogue, namely, the unpleasant and some- times dangerous sequence of cholecystostomy --an external biliary fistula, which may of itself be a menace to life. He also adverts to the difficulties and dangers of cholecystectomy as a radi- cal operation. He says that the effect of a permanent fistula of the gall- bladder and the constant escape of bile secreted, as fre- quently follows cholecystostomy, is different, depending, first, on the quantity of bile that escapes from the open- ing, and second, upon what proportion is admitted into the intestinal tract. This accounts for the great differ- ences of opinion as to the gravity of biliary fistula ; and if we let the entire quantity of bile escape through a fis- tula, the patient soon succumbs. Therefore, a safe way still in position. Hair and food were in the gall-bladder. In another dog in which button anastomosis was employed, nothing unusual occurred. This animal was killed on the fourteenth day, and there was perfect union of gall-bladder to bowel. There was partial atrophy of the tissue in the clasp of the button, which was in position ; hair and food were in the gall-bladder, and the lat- ter was of about the normal size. An experiment was made upon one dog, with this modification : the stom- ach was used in place of the intestine for the anastomosis with the gall-bladder. A little difficulty was experienced in approximating the ends of the button, on account of the thickness of the wall of the stomach. The dog was sick on the following day ; would not eat or play. But on the third day all symp- toms had disappeared. The dog was killed fifty-five days after the operation, and the gall-bladder was found to be firmly united to the stomach ; the little finger could be passed into the stomach from the gall-bladder, and there was neither hair nor food in the latter, which was somewhat contracted. The dog did not seem to suffer Fig. 165.-Button as Held when its Two Halves are Pressed together in the Performance of Cholecyst- enterostomy. 349 Gall-Bladder. Gas Analysis. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. any inconvenience from the bile passing into the stom- ach. Three operations with the anastomosis button for ef- fecting communication from the gall-bladder into the duodenum in the living human subject, have proved suc- cessful in the hands of Dr. Murphy. They were per- formed on June 11, October 19, and November 23, 1892, upon females aged thirty-five, thirty-eight, and thirty- six years. As the description of the second case embod- ies most of the points of interest in the operation, it will be given in the words of the author. " October 19th, I made an incision, three inches long, from the edge of the tenth rib directly downward toward the border of the ilium. The tumor was exposed and found to be a very much enlarged gall-bladder, with large calculi within. The viscus was very oedematous, red, and thickened. It was decided to make a cholecysten- terostomy with my anastomosis button (No. 2). The gall- bladder was aspirated and the running thread inserted. The running thread was then inserted into the duodenum and the intestine incised, and the male half of the but- ton inserted ; the female half was then inserted in the gall-bladder through a slit made between the running thread, and the button closed. There was no difficulty in inserting the button. The gall-stones were allowed to remain, as I do not consider it necessary to remove them unless they are larger than the button. They will pass out after the button escapes. " October 20th.-Temperature, 101° F. ; pulse, 96. Vomited considerably during the night and complained of headache, which seemed to be effects of the anaesthetic. There was no pain or abdominal tenderness. " October 21st.-At 5 p.m. yesterday the vomiting ceased, and the patient is feeling very well this morning. " October 27th.-The patient has had no unpleasant symptoms since October 20th. This morning, in the stool, were found two large gall-stones. The larger one weighed 117 grains (7.8 gm.) ; its longest diameter 1 inch, its shortest | inch. The second stone, 102 grains (6.8 gm.); shortest diameter J inch and its longest | inch. It will be noticed that the shortest diameter of the larger stone measures exactly the same as the diameter of button used. "The patient is feeling very well and sitting up in bed. Complete primary union. Button passed eighteen days after operation." Nothing is said by Dr. Murphy in regard to the further progress of this case, though his report of a patient sub- sequently operated on is brought down to November 28, 1892. There seems to be some discrepancy in the dates of this paper, which was presented to the Association October 15th, containing reports of operations done on October 19 and November 23, 1892 ; but this may, perhaps, be explained upon the supposition that they wrere inserted afterward when the paper was published in the Record. If the results of the experiments on dogs and the operations upon human subjects, reported by Dr. Murphy, are to be accepted by the profession as facts without criticism, we certainly have the most convincing proof of the superiority of the anastomosis button in this class of operations. There is an old adage that exceptions prove the rule, but there seems to be no discount to the uniform success of this new process of anastomosis for all the different tissues to which its author has applied it. He states that he performed the operation of gastro- enterostomy three times with the button on the human subject, and that Dr. Wiener did it once. " In all of the cases," he says, "we got a primary adhesion," and he adds that he will give a detailed report of these cases in a subsequent clinical paper on the subject. Nothing is communicated as to the final outcome of the patients operated on excepting the first, but we are left to infer that all went well with them, as in a great variety of other successful operations with the anasto- mosis button referred to in this paper. The writer has received specimens of three different sizes of these buttons from the manufacturer, and is con- vinced that a smaller button than either would be better (SUPPLEMENT. suited to effect an opening from the gall-bladder into the duodenum. It is not desirable to have so large an outlet from the gall-bladder for the biliary discharges. The two larger sizes of the button are of such bulk and weight that their passage through the small intestine may cause trouble, and more especially at the ileo-csecal con- nection. It is a known fact that gall-stones, not exceed- ing greatly the diameter of the largest button, have been arrested in the small intestine, necessitating an operation for removal on account of the obstruction in the canal; and after examination of these buttons there seems to be cause for objecting to the employment of the larger sizes in attaching the gall-bladder to the duodenum. It will be observed that size No. 2 was used in the case recorded in this paper, and that the "button passed eighteen days after the operation." But nothing is reported as to the passage of the button in the other twyo cases. He states, however, that the patient operated upon on June 11, 1892, was examined by Dr. II. R. Wittmer on October 28th, and that she was in excellent health. The weight of the buttons might be lessened materially by using aluminium in their construction, thus setting aside an objectionable feature, as the largest size at pres- ent weighs 340 grains. Further experience in the use of the anastomosis button is desirable, before it is finally adopted in the surgery of the gall-bladder. J. McFadden Gaston. GANGRENE. The subject of gangrene in its various forms was fully considered by the writer, in a previous article in the Handbook, to which the reader is re- ferred for a more extended discussion of the subject. It remains, however, to consider it from the stand-point of recent surgical pathology, more especially surgical bac- teriology. That form of gangrene which is due to lack of nutri- tion of the part, such as that caused by arteritis obliterans and by thrombosis, remains unaffected by recent experi- mental discoveries. We may therefore divide gangrene into two general classes-the first class being from lack of nutrition, and the second class being a gangrene of microbic origin. The first class, as has been known for a long period, includes alterations of the arteries and veins, and of the nerves of the arteries ; these alterations consisting of atheroma, thrombosis, emboli, changes in the blood, and alterations in the structure of the nerves. Reclus has given the term " direct gangrene " to the first class, including those produced by violent trauma- tism, by extreme cold, burns, and caustics; "indirect gangrene " to that series in which the lack of nutrition is due to arterial, venous, capillary, or cardiac derange- ments, and to the different alterations of the blood. The latter term is also applicable as well to the trophic or nervous gangrenes. Clinically, Reclus divides the gan- grenes into four types: gangrene by cadaverization, white gangrene, dry gangrene, and moist gangrene. Gangrene by cadaverization is an exceptional form, in which the skin is cold, dull, rigid, and discolored as after death, the epidermis is easily detached, and on punct- uring the integument with a needle or by light strokes of the bistoury, small drops of blood appear. Some- times the entire member is cold, but without being fa- tally lost, as in the case stated by Lemont, where after discoloration, coldness, and cornification, in about ten days there appeared, little by little, heat and sensation, and soon all traces of gangrene had disappeared. Ordinarily, however, says Reclus, the gangrene of cadaverization is succeeded by dry gangrene. White gangrene, as described by Ousnay, appears in the same form and has been confounded with the gan- grene of cadaverization. It appears as a hemorrhagic spot on the skin, a sort of limited ecchymosis, which may have its seat anywhere on the body ; it is always superficial. Dry gangrene, or mummification, is invariably pro- duced by blocking of the blood-vessels or by trophic changes. Moist gangrene applies to the septic variety, and is ex- tremely rapid in its progress. Moist gangrene is distinc- tively septic, as has been proved by its reproduction by 350 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Gall-Bladder. Gas Analysis. inoculation, to such a degreethat some pathologists have detached gangrenous septicaemia from the traumatic gan- grenes. As a means of determining the exact location of the thrombosis or obstruction, in the case of arteritis obliter- ans. Dr. W. S. Lyon, of Edinburgh, gives the follow- ing method of procedure : Gently raise the limb, keep it raised for two or three minutes to empty it in some de- gree of its blood, then apply the tourniquet or piece of elastic webbing on the proximal side of the injury or supposed site of the obstruction, and keep it applied for about a minute ; then lower the limb and remove the tourniquet. If sufficient circulation remains in the part below the injury it will blush a rosy red and show in an unmistakable manner the condition of the blood-vessels. It must be evident that, as in the case of surface constric- tion when applied to a given surface, if the arteries are sound underneath, it will speedily cause tension below the ligature by reason of the accumulation of blood, and so, by readjusting the ligature from time to time, it is pos- sible to approximately arrive at the site of obstruction. Moist gangrene, or emphysematous gangrene, pro- duced by the development of gases in the decomposed part, or putrefactive changes, is now supposed to be due to a bacillus morphologically like that of the malignant oedema, as described by Koch and Gaffney. It is known by the experiments of Rosenbach and others that in these cases of emphysematous gangrene there are present one or more varieties of the proteus micrococcus, with other forms of bacteria, and that the ptomaines of these bacteria themselves in some cases may cause tissue death ; and that certain bacteria have the power of generating gases, this being true, in particular, of a variety which is called by the French " vibrion septique," which is anaerobic, and which resembles the bacillus anthracis. In this connection it is to be remembered that the treat- ment of moist gangrene has undergone a radical change ; deep and thorough incisions, the injection of anti-bacil- lary agents, copious and repeated irrigation, are meas- ures which are now practised, and amputation is reserved for cases in which the bones are so enfeebled as to be no longer capable of supporting the member. It is evident from the mutiplicity of experiments and observations that no one microbe can be the sole cause of gangrene. Godlin1 reported a case of gangrene re- sulting in emphysema, which started from an inflamed corn, rapidly extended, and in a week required thigh amputation. The man continued to show sapra>mic symptoms after the amputation, and culture experiments with the pus showed the presence of streptococcus pyo- genes and staphylococcus pyogenes albus. Lemont and Koch have described another bacillus which they found in a case of emphysematous gangrene, and which resem- bled the bacillus of glanders. Staphylococcus pyogenes aureus and staphylococcus cereus albus were found in metastatic gangrene of-the skin, by Ciarrochi. He also isolated a short bacillus which, when injected under the skin of animals, produced gangrenous pus. In conclusion it must be staled that the traumatic gan- grene, where the parts are pulpified or bruised, and blood is extravasated into the tissues, affords favorable condi- tions for the growth and propagation of putrefactive bac- teria. Senn has well summarized the etiology of septic gangrene as follows: First Condition, the microbes are so numerous in the capillary vessels that their presence interferes mechani- cally with the blood-supply, and death of the part ensues in consequence of greatly diminished or suspended nu- trition. Second, the microbes in the tissues produce ptomaines which destroy the tissue by their direct de- structive chemical action on the protoplasm of the cells. Third, the specific inflammation caused by the microbic infection is so intense that the inflammatory product in the perivascular tissues accumulates so rapidly and in such abundance that nutrition is suspended by impairment or Suspension of the arterial blood-supply, or mechanical interference of return of blood from the part, or both of these conditions combined. Coagulative necrosis, a condition confounded by some (SUPPLEMENT with gangrene, was given its name by Cohnheim, and is a condition which takes place in the coagulation of the blood, whereby the colorless corpuscles die and undergo a fermentative change. This is the same as the "fibrine ferment '' of the last decade. John B. Hamilton. 1 British Medical Journal, July 27, 1887. GAS ANALYSIS. I. General Properties of Gases.-(a) A gas is characterized by the property of filling uniformly any given space. If the pressure upon a gas be increased, its volume will diminish, and, provid- ing the temperature remain constant, the volume of a gas will be inversely proportional to the pressure. De- noting the volumes by Vand v, and the corresponding pressures by P and p, then, V : v = p : P; or, (1) VP = vp. In other words, at a constant temperature the product of the volume and the pressure is always the same. This law of Boyle holds true only for relatively slight varia- tions of pressure and volume. If it were correct for gases subjected to very great pressure, then the gas which would be first liquefied by the pressure would finally attain a density greater than solid substances, a phenomenon manifestly impossible, because liquid bodies are but slightly compressible. The variations from the law within the limits met with in ordinary analytical operations are, however, so slight, that for the present purposes it may be regarded as correct. All gases expand in the same proportion when sub- jected to the same rise in temperature. If one volume of a gas be heated from 0° C. to 100° C., its volume then will be 1.367. The increase in volume for each degree would accordingly be .00367. If v is the volume at any temperature t, and Vthe volume at'O°, the above may be expressed. (2) v = V (1 + .00367 t). If a gas which has been thoroughly dried be collected over mercury in a tube closed at the top, and if then a small amount of water, sufficient to saturate the gas with water vapor, be introduced into the tube, it will be seen that the volume is thereby increased. In analytical oper- ations it is quite difficult to dry each portion of gas be- fore measuring, and in calculating the absolute volume of the gas, allowance is made for the increase in volume caused by the water vapor present. The pressure ex- erted by the water vapor has been determined experi- mentally for all temperatures, and the volume which a gas saturated with aqueous vapor would occupy if dry can be determined by ascertaining the volume which would correspond to the prevailing pressure, P, less the pressure exerted by the water vapor at the temperature observed. To illustrate, a gas volume saturated with water vapor, and measuring 63.2 cubic centimetres un- der a barometric pressure of 744.6 millimetres, and tem- perature of 18.4° C., would, in the dry state, and at the , . , i co o 744.6-15.72 same pressure and temperature, equal 63.2 744.6 = 61.8 c.c., 15.72 being the tension of water vapor at 18.4° C. It is evident that for scientific purposes, observed gas volumes should be reduced to the volumes which would be occupied under certain standard conditions. By com- mon consent the pressure of a column of mercury 760 mm. high is termed the normal or standard pressure, and 0° C. the normal temperature. All observed gas volumes, then, are reduced to the volumes which the gases would occupy in a dry state at 760 mm. pressure and 0° C. The necessary data for the calculation have been given above. In equation (1), if P be taken as the normal pressure of vP 760 mm., the equation becomes F= -. Equation 760 (2) would give for V, V = ।_L__Combining 351 Gas Analysis. Gas Analysis. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. these two, and subtracting from the observed barometric pressure, P, the tension of the water vapor, m, at the observed temperature, t, we have TZ P - m V = v . 760 (1 + .00367 I) To illustrate, 82.3 c.c. of a gas, measured in a moist condition under a barometric pressure of 748.2 mm., and a temperature of 18.6° C., would, under normal condi- tions, equal 82.3 748,2 ~ 15,9- = 74.1 c.c. 760 (1 + .00367 x 18.6) (b) Partial Pressure.-Gases mix in all proportions. The pressure of the mixture is the sum of the pressures of the various gases in the mixture. The pressure ex- erted by each of the gases is the same as the gas would exert if present alone in unchanged amount in the same space. This pressure exerted by each gas of a mixture is known as its partial pressure. One hundred volumes of the atmosphere contain 20.9 volumes of oxygen and 79.1 volumes of nitrogen. If air were confined in a vessel under a pressure of 760 mm. and the oxygen were then removed, the remaining nitrogen would then fill the whole space and would exert a pressure of 760 x 0.791 = 601.16 mm. Had the nitrogen been removed, the oxygen would have exerted a pressure of 760 x 0.209 = 158.84 mm. These, then, are the partial pressures of the two chief constituents of the atmosphere. The well-known researches of Paul Bert have shown that this partial pressure of atmospheric oxygen plays an important role in the process of breathing. We have seen above that the oxygen of the atmosphere exerts a pressure of about one-fifth of the total pressure of the air. Bert has shown that animals and men can live in pure oxygen if the pressure of the gas be reduced to one- fifth of an atmosphere, or, in other words, to the pressure which it exerts in the atmosphere. If, on the other hand, animals be confined in air whose pressure has been re- duced to one-fifth of an atmosphere, death soon results, because here the partial pressure of the oxygen is only one-twenty-fifth of an atmosphere. (c) Diffusion of Gases.-Molecules of gases move con- stantly in all directions, and if a layer of a light gas be carefully introduced over a layer of a heavier one, it will be found that, after some time, the lighter gas above has passed downward and mixed with the heavy gas below, and vice versa. This property, known as diffusion, is pos- sessed by all gases. Whenever different gases are in con- tact, the molecules of adjacent layers tend to intermingle and form homogeneous mixtures. (d) Solution of Gases in Liquids.-All gases are more or less soluble in liquids, the amount dissolved depending upon the nature of the gas and solvent, and also upon the temperature and pressure. Gases which can be easily liquefied are more soluble than those which are liquefied only with difficulty, and, on the other hand, warming diminishes the solubility of the gas, perhaps because the rise of temperature removes the gas further from the liquefiable state. Henry, in 1830, found that at constant temperature the amount of gas dissolved is proportional to the pressure. That is, if a liquid absorbs a certain amount of gas at a pressure of one atmosphere, it will ab- sorb twice as much of the gas under a pressure of two at- mospheres, and at half an atmosphere half as much. This law of Henry is not absolutely correct, but it ap- proaches the truth very closely for those gases which are but slightly soluble. The amount of a gas taken up by an absorbent, as water, is determined by experiment with an "absorp- tiometer," such as that used by Bunsen,2 or by L. W. Winkler,9 and from the data thus obtained a table of the solubility of the gas at different temperatures can be made out. Bunsen denotes the solubility by the term " absorption-coefficient," by which he means the volume of gas reduced to 0° and 760 mm. pressure, which is ab- sorbed by 1 c.c. of liquid at the same pressure. (SUPPLEMENT.) It is important to remember in this connection that the solubility of a gas in a mixture of gases is not influenced by the presence of the other gases, and is not proportional to the total pressure of the mixture, but only to the press- ure exerted by the gas in question, i.e., its partial press- ure. Thus water exposed to the air does not dissolve equal amounts of oxygen and nitrogen, nor amounts pro- portional to the solubility of the two gases, but rather the volumes of the two gases which the water will absorb depend upon both the solubility and the partial pressure of the two gases. To illustrate, the pressure exerted by nitrogen when the total atmospheric pressure is 760 mm. is about seventy-nine per cent, of 760, or 600.4 mm. At 760 mm. pressure and 20° C., 1 c.c. of water absorbs 0.014 c.c. of nitrogen ; hence at 600.4 mm. pressure it would absorb 0.014 x ^P?'4 = 0.0109 c.c. Under the same condi- ibO tions 1 c.c. of water dissolves 0.028 = 0.0058 c.c. of ,60 oxygen. Hence, when air is dissolved by water under the above conditions 65.2 per cent, of the dissolved gas would be nitrogen and 34.8 per cent, would be oxygen, or, in other words, the oxygen would amount to more than one-third of the total volume of dissolved gas, although in the air it amounts to one-fifth. The law of partial pressure thus explains why the various components of a mixture of gases are taken up by a solvent in amounts depending upon the pressure of each gas and independent of the other gases present. When the molecules of a gas come in Contact with the surface of a solvent such as water, they are held fast or are absorbed, and this absorption continues until the water has taken up a certain number of the molecules. Some of the gas-molecules will meanwhile escape from the water and pass back into the gas, and when the num- ber of molecules which enter the water in a given time is equalled by the number which escape, the water is said to be saturated with the gas. If the pressure of the gas be increased the number of molecules absorbed by the water will also be increased, and with diminished press- ure the opposite will be true. In the absorption of the gases in a mixture the amount of each gas absorbed will, as we have seen, depend upon the partial pressure of that gas, and the escape of the same gas from the water will be influenced by its own partial pressure in the mixture, but not by the pressure exerted by any other constituent. In other words, the atmosphere of another gas prevents the escape of a dis- solved gas no more than would a vacuum. There are no molecules of the dissolved gas present to enter the water, and the gas, by reason of its elasticity, passes out. That many gases can be driven out of water by boiling, even although the gases are somewhat soluble in boiling water, may be explained by the fact that the surface of the water becomes covered with a layer of aqueous vapor, the partial pressure of the gas upon the surface of the water is thus made very slight, and, as a consequence, the dissolved gas escapes. II. The Analysis of Gases.-(«) The Collecting and Keeping of Gas Samples.-In gas analysis, as in all other analytical work, the proper taking of the sample is one of the most important operations. Notwithstanding the rapid movement of gas molecules, currents of gases are often of varying composition, especially when chemical processes are simultaneously going on. On this account the place at which the samples of gas are taken is of the greatest significance. In pipes or other channels the point of smallest cross-section is the most suitable. In the examination of furnace gases it is best to take the sample at the point where the visible flame ends, because farther away, on account of the porosity of the wall, considerable quantities of air are always mixed with the gases from the fire. To take the sample an iron tube is introduced into the furnace at a suitable point. A small lead pipe, such as is used for pneumatic bells, is attached to the outer end of the iron tube by means of a piece of rubber tubing. At temperatures under 300° the lead pipe itself may be inserted into the furnace. The great 352 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Gas Analysis. Gas Analysis. advantage possessed by such lead pipe is that it is very small internally and can be manipulated as easily as rub- ber tubing. For very high temperatures either porcelain tubes or cooled iron tubes may be used. With acid gases glass tubes should be employed if possible. Long rubber tubes must be avoided, but short pieces may safely be used for connections. Rubber receivers also are to be rejected. Vulcanized rubber acts toward gases as does a liquid, absorbing the gases, and later, ac- cording to the prevailing pressure, giving them up again. For example, a piece of rubber tubing, 3 ctm. long and from 4 to 5 mm. external diameter, absorbed 0.2 c.c. of carbon dioxide and 0.9 c.c. of nitrous oxide, and on ly- ing in the air it gradually gave up these gases. If the place where the gases are to be collected is directly accessible, as, for example, in the examination of mine-gases, the small " medicine bottles" * proposed by Bunsen may be used, the neck of the bottle being drawn out in the flame of the blast-lamp as in Fig. 166. Bun- sen states that the bottle should first be carefully heated between the shoulder and the neck, and the neck then drawn out. by (SUPPLEMENT.) breaking the tube at b, it is tilled instantly and with the greatest certainty by the gas in question. The tubes are then closed for a few moments with a rubber cap, and are melted to- gether at a over a candle. The ex- hausting with the air-pump has the advantage of ren- dering one less dependent upon the care of the person who tills the tubes. If, however, it is desired to avoid this exhausting, the tubes are given the following form (Fig. 170). To fill such a tube, the gas to be examined is drawn through it and the tube is then fused together at a and b in a candle flame (Fig. 171). Such tubes can be most safely shipped by packing them Fig. 169. Fig. 170. Fig. 171. in sawdust in boxes which have a separate compartment for each tube. The boxes themselves are placed in a larger box filled with hay. The tube last described is filled by the displacement of the air already contained therein. Naturally it is here presupposed that large amounts of gas are at one's dispo- sal. If only a small quantity of gas is obtainable, the receiver must be filled with water or mercury, which is then displaced by the gas. Water can be used only when it is first saturated with the gases in question, as, for example, is always the case with the water of bub- bling springs. To collect gas from such springs as are directly acces- sible, the small apparatus pro- posed by Bunsen is used (Fig. 172). This consists of a test-tube, c, of from 40 to 60 c.c. capacity, drawn out at a before the blast- lamp to the size of a fine straw, and connected air-tight with the funnel b by means of a well-fitting cork or a piece of vulcanized rubber tubing. In- stead of the test-tube a small long-necked medicine bottle may be used, this being drawn out in the middle of the neck to a similar straw-like contrac- tion. The apparatus is then filled with the water of the spring. This cannot be done without access of air, which would change the composition of the gases diffused through the spring water in the tube. Hence the inverted apparatus, with the mouth of the funnel upward, is lowered below the level of the spring, and, with a narrow tube reaching to the bottom of the test-tube, the water which in the first filling had come in contact with the air is sucked out until one is satisfied that it has been entirely replaced by other water from the spring. If now the gas of the spring is allowed to rise through the funnel into the test tube thus filled, the purity of the sample is assured. If the rising bubbles stop in the neck Fig. 166. Fig. 167. Fig. 168. means of suitable tongs (Fig. 167). To fill the bottle with gas, the air in the bottle is sucked out through a small glass tube reaching to the bottom, this opera- tion being repeated until the air originally in the bot- tle is completely replaced by gas from outside. Five or six full breaths are sufficient. It is self-evident that at each exhalation of the air sucked from the bottle one must step aside from the spot where the gas sample is being taken. The tightly stoppered bottle is then slightly warmed over a spirit-lamp, and equilibrium between the expanded air inside the bottle and the outside atmosphere is re-established by lifting the cork for a moment. After cooling, the diminished pressure inside the bottle prevents the blowing-out of the glass when the narrow neck is fused together. The fusion may conveniently be per- formed with the blow-pipe shown in Fig. 168. The small lamp (a) holds 3 grammes of oil and is connected with the blow-pipe by means of a flexible wire that carries a col- lar (b) through which the tip of the blow-pipe is inserted. The cork c serves as a mouth-piece, by means of which the whole apparatus can be held and guided by the teeth alone. Thus both hands are left free, and the flame can still be moved in all directions, since the relative positions of the blow-pipe tip and the lamp remain the same, how- ever the instrument be held. The arrangement used by Hempel in his parallel re- searches "upon the composition of the atmosphere at different parts of the earth " is also a very convenient one. The air was collected in glass tubes of the form shown in Fig. 169. d is about 4 mm. thick ; a, b, and c, only 1 mm. These tubes were heated in an air-bath in the labo- ratory to 200°, and were then exhausted with the mer- cury air-pump and fused together at c. By simply Fig. 172. * These so-called medicine bottles are common glass bottles about 12 ctm. high. They were recommended by Bunsen because they can be found almost everywhere, even small village drug stores having a supply of them. 353 Gaw Analysis. Gas Analysis. REFERENCE HANDBOOK OF TIIE MEDICAL SCIENCES. (SUPPLEMENT.) of the funnel or at the contraction a, they can easily be made to ascend by tapping the edge of the funnel upon some hard substance. The apparatus is then placed in a small dish and removed from the spring, and the tube is melted together at a. This can easily be done with the blow-pipe, the moisture at the point a having first been driven away by warming. For the determination of the volume and composition of the absorbed gases in liquids, the Tiemann and Preusse not enter from without because the liquid in B is kept continually boiling. The apparatus is now ready for a determination, which is made as follows : The cooled flask A, whose capacity has been previ- ously determined, is filled with the water to be exam- ined, and the stopper is pressed in so far that the air in the tube a is completely driven out. a is then connected with b, care being taken that in so doing no air-bubbles are enclosed. The pinchcock between a and b is opened, and the water in A is heated to gentle boiling. The dis- solved gases are hereby driven over into the gas-collector G. Steam is formed at the same time. The heating of the flask A must now be so regulated that the gas and steam evolved never drive out more than half the liquid in G; otherwise there is danger of gas-bubbles entering the tubes d and e and thus escaping. After heating for about twenty minutes the flame un- der A is removed. In a few minutes the steam in A and G condenses, and water passes from B toward C and A. If a gas-bubble is observed in A, the flask A must again be heated and cooled in the manner just described. The operation is ended when the hot liquid flows back and completely fills A. The rubber tube g is then connected with a small tube which is filled with water or mercury, and the gas standing over the hot liquid in C is driven over into a eudiometer, gas burette, or gasometer by blowing into the tube x and opening the pinchcock a. As it is difficult, and sometimes impossible, to com- pletely remove the dissolved gases from water by boiling alone, it has been found advantageous to combine with the boiling of the water the use of the mercury air- pump. One of the best forms of apparatus thus far de- vised for the purpose has been recently described by Hoppe-Seyler4 (Fig. 174). A is first filled with mercury by raising C, the clamp b is closed, and the air in B is removed by opening c and lowering E, thus drawing most of the air in 7? over into the upper part of D. c is then closed and by raising E the air is driven out through e. Upon opening c some mercury will enter B, and the above procedure is re- peated until all air has been removed from B and D and the tubes are filled with mercury. The water whose dis- solved gases are to be examined, can then be drawn into B and A without coming into contact with the air. The water in A is then healed to boiling, the evolved gas collects in B, and, b having been closed, the gas can be Fig. 173. modification of Reichardt's apparatus3 can be recom- mended (Fig. 173). This consists of two flasks, A and B, each of about one litre capacity, and connected by tubes with the gas-col- lector G. The flask A is fitted with a perforated rubber stopper, in which is inserted the glass tube a, bent at a right angle and ending flush with the lower surface of the stopper, a is joined by a piece of rubber tubing to the tube Sc, which in turn connects with the gas-collector G. G is held by a clamp, has a diameter of 35 mm., is about 300 mm. long, and at the upper end is drawn out to a short, narrow, and slightly bent tube which can be closed with the rubber tube and pinchcock g. In the lower end of G is a rubber stopper with two holes, through one of which the tube Sc, projecting about 80 mm. into G, is inserted. Through the other opening passes the tube d, which extends only slightly beyond the stopper and connects G with the flask B. B has a double-bore rubber stopper carrying the tubes e and/, c ends about 10 mm. above the bottom of the flask, and above the stopper it is bent at a right angle and is con- nected with d. The tube/, which need not project be- low the stopper, carries a thin rubber tube (#), about one metre in length and provided with a mouth-piece. A pinchcock for closing the rubber tube between a and S is also needed. The apparatus thus arranged is made ready for a de- termination by filling the flask B somewhat more than half full of boiled water, and removing the flask A by slipping the tube a out of the rubber connection ; then, by blowing into the rubber tube x, -water is driven over from the flask B into the gas-collector G and the adjoin- ing tubes until the air is wholly displaced. The rubber tubes at b and g are now closed with pinchcocks. The flask A is then filled to the brim with distilled water, the stopper is inserted, water being thereby driven into the tube a, and the flask is again connected with b, the pinch- cock being opened. The water in B is now heated to gentle boiling, and that in A is allowed to boil somewhat more rapidly. The absorbed air is thus driven out, and the gases dis- solved in the water which is in A and G collect in the upper part of G, from which they are removed by occa- sionally opening the pinchcock at g and blowing into the rubber tube x. When, upon cooling the apparatus, the gases which have collected disappear, the heating of the flask A is discontinued, the pinchcock between a and b is closed, and A is disconnected and emptied. The water in Cand B is now entirely free from absorbed gases, and air can- Fig. 174. drawn over into D and transferred to tiie measuring tube G or any other desired apparatus. The researches of Jacobsen and Pettersson have shown that it is impossible to remove the dissolved carbon dioxide from the water by boiling, and Iloppe-Seyler, in his description of the apparatus figured above, says that after forty boilings of a water containing carbon dioxide some of the gas still remained in the liquid. For these reasons it is best not to attempt to remove the gas 354 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Gas Analysis. Gas Analysis. from the water, but to determine it while still in solution. One of the best methods for accomplishing this is one devised by Pettenkofer, which consists of precipitating the carbon dioxide dissolved in the water by adding a solution of calcium hydroxide of known strength, allow- ing the precipitate to settle, and then determining the ex- cess of the calcium hydroxide in an aliquot portion of the clear supernatant liquid by titration with dilute oxalic acid. Litmus solution is used as the indicator. Sutton describes the method as follows : " The following is the best method to be pursued for ordinary drinking-water not containing large quantities of carbon dioxide: 100 c.c. of the water is put into a flask with 3 c.c. of a strong solution of calcium chloride, and 2 c.c. of a saturated solution of ammonium chloride ; 45 c.c. of lime-water, the strength of which has been pre- viously ascertained by means of decinormal acid, is then added, the flask well corked and put aside to settle. When the solution has fully subsided, take out 50 c.c. of the clear liquid with a pipette, and titrate this with (SUPPLEMENT.) Fig. 175 shows an arrangement which may be used when one wishes to take samples at the same time in a Hempel gas burette (see later). The water passes from the bottle A through the siphon (A into C, and thereby draws the gas from the tube F. When A is empty, C, which is now full, is put in its place, the aspirating of the gas continuing as long as the samples are being taken. While the gas is being thus drawn from F into A, a sample for analysis may be at any time drawn off into the gas burette by lowering the level-tube, as shown in the figure, and opening the pinchcocks d and/. When running water is at hand, the aspirating may be done by means of the ordinary glass or brass suction- pump attached to the faucet. A gas can be best kept in the fused glass tubes already Fig. 176. described, but glass bulbs supplied with two glass stop- cocks are also quite satisfactory (Fig. 176). Metallic receivers should be used for analytical pur- poses only when the gas is to remain in them but a short time. They are, however, not easily broken, and are especially well adapted to the transport of large quanti- ties of gas. Rubber sacks should never be employed, since gas mixtures confined in them rapidly change in composition. If large amounts of gas are to be collected and kept for analysis foi a considerable length of time, the portions of gas taken for analysis must be displaced with mercury. Il is utterly impracticable to use wa ter for this purpose, for continual changes would take place, since the absorption varies with the pressure and temperature. A gasometei Fig 177. Fig. 175. well adapted to keeping comparatively small volumes of gas is shown in Fig. 177. The large glass bulb A serves to hold the gas. At the top it carries the bent capillary tube a, and at the bottom it is joined to the level-bulb B by a rubber tube. The capillary is closed by a rubber tube and pinchcock. The apparatus is first filled with mercury. By lowering or raising the level-bulb, gas can be drawn in or driven out as desired. If gases are to be kept for some time, the capillary tube a is filled with mercury by means of a little pipette inserted at c. This closes the bulb perfectly. In such an apparatus gases may be kept unchanged for an unlimited time. Small glass bulbs (Fig. 178) are also very convenient. They are filled with gas in a mercury trough, and are then placed mouth downward in small porce- lain crucibles containing mercury. The gas is taken out with the gas pipette to be described later. (6) The Apparatus.-The amount of a gas may be de- termined by : 1, The direct measuring of its volume ; 2, decinormal acid. The quantity required must be multi- plied by three for the total lime solution, there being only 50 c.c. of the solution taken ; the number of cubic centimetres so found must be deducted from the original quantity required for the calcium hydroxide solution added ; the remainder multiplied by 0.0022 (the acid being decinormal) will give the weight of the carbonic acid existing free and as bicarbonate in the 100 c.c. of water. " The addition of the calcium chloride and the am- monium chloride is made to prevent any irregularity which might arise from the presence of alkaline carbo- nates or sulphates, or of magnesia. If it be desired to ascertain the volume of the carbon dioxide from the weight, 1,000 c.c. of the gas at 0° C., and 760 mm. press- ure, weigh, 1.96503 gramme." If the gases to be collected have a pressure less than the prevailing atmospheric pressure, an aspirator must be used. The simplest form consists of two interchange- able bottles of equal size and the same width of neck. Fig. 178. 355 Gas Analysis. Gas Analysis. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) absorbing the gas with a solution of known strength, and then ascertaining by titration the amount of the solution ■which has been acted upon ; 3, absorbing the gas with a weighed amount of an absorbent, and then ascertaining the increase of weight ; 4, burning the gas, and deter- mining the products by either volumetric or gravimetric methods. Although isolated analyses of gases had been made be- fore his time, Robert Bunsen2 was the first to develop gas analysis as a distinct branch of analytical chemistry, and to devise methods by which gas mixtures could be examined with accuracy. The forms of apparatus and the methods which he introduced, and which have since been improved by Geppert,7 have made possible, in the analysis of gases, an exactness that has perhaps never scribed apparatus and methods remarkable for their ex- actness and ease of manipulation. The many improve- ments which Hempel has made in his methods since that time he has embodied in a second work. " Gasanalytische Methoden " (1890), from the English translation1 of which many of the following descriptions are taken. Hempel's Apparatus for Technical Gas Analysis. - Gas Burettes.-These are carefully graduated tubes in which the gases are measured. A. The Simple Gas Burette (Fig. 179). This consists of two glass tubes, A and A, which are set in iron feet and are connected by a thin rubber tube about 120 ctm. long. To facilitate the cleaning of the burette the rubber tube is divided in the middle and the two ends joined by a piece of glass tubing. Inside the feet the tubes are bent at right angles and conically drawn out. The end projecting from the iron is of about 4 mm. external diameter and is somewhat cor- Fig. 1^0 Fig. 179. rugated, so that a rubber tube may be tightly fastened to it by wire ligatures. The measuring tube b ends at the top in a thick-walled tube, c, of from i to 1 mm. internal diameter and about 3 ctm. long. Over this a short piece of new black rubber tubing is wired on. The rubber tube is closed by a Mohr pinchcock, which is put on close to the end of the capillary. Notwithstanding the fact that readings cannot be made under the rubber tube, and that the pinchcock cannot always be put on above the tube in exactly the same po- sition, no error results therefrom, since the glass tube c is very small. The graduated measuring tube b contains 100 c.c., the lowest mark being slightly above the iron foot. The cubic centimetres are divided into fifths, and the numbers run both up and down. The other tube, which we will call the level-tube, is somewhat widened at the upper end, h, to facilitate the pouring in of liquids. B. The Hempel-Pettersson Gas Burette, Independent of Changes in Temperature and Atmospheric Pressure (Fig. been exceeded by other procedures. But the apparatus used by both Bunsen and Geppert is cumbersome, and the analysis of a gas mixture of any complexity is a long and tedious operation, so that while Bunsen's methods have met with early and lasting approval, they have not found wide use among chemists. With the growth of the great industrial processes in Europe, and especially in Germany, there arose a demand for analytic methods which, if not so exact as those of Bunsen, should be fairly accurate, simple, and rapid. This demand was met, with remarkable success, by Clemens Winkler, whose classical work upon qualitative and quantitative gas analysis6 made the field of techni- cal gas analysis as easily accessible as the other branches of analytical work developed by Rose, Mohr, Fresenius, and Plattner. In 1880 Walter Hempel published his " Neue Methode zur Analyse der Gase," and there de- 356 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Gas Analysis. Gas Analysis. [SUPPLEMENT.) capillary tube being allowed to project from 2 to 3 ctm. above the frame. A short piece of. rubber tubing is wired on to the free end of the capillary. The distance h must be greater 180). The graduated measuring tulfe A contains 100 c.c. and is fastened into the heavy cast-iron foot E. The bu- rette is closed at the top by an obliquely bored stopcock, which opens into the two capillary tubes a and b. The burette is connected by two short pieces of rubber tubing with the manometer J'7 and the Pettersson correction tube B. This correction tube is a plain glass tube closed at the bottom and joined at d to the manometer F by a piece of rubber tubing. Both the burette and correction tube stand in a wide glass tube, C, filled with water. C is open at the top, and is closed at the bottom by a single-bore rubber stopper. The U-shaped part of the manometer tube Fis about 6 mm. wide ; from e to c it is capillary when mercury is used as the confining liquid, but when water is used this part is 3 mm. wide. The burette is connected by rubber tubing with the stopcock G and the level-bulb H. Mercury, or water saturated with the gas to be ana- lyzed, is used as confining liquid. If the gases are to be measured in a moist condition, as is generally advisa- ble, a drop of water is introduced into the correction tube B. Before using the apparatus for an analysis, the size of the space between f and c in the manometer tube must be determined once for all. This is done by drawing some air into the burette, and then bringing the three-way cock into the position Dx, so that the burette communicates with the manometer. By raising or lowering the level-bulb the enclosed gas can easily be brought to the pressure of the gas in the correction tube B. This is accomplished when the liquid stands at the same height in both sides of the U-tube of the manometer. The cock G is now closed, and the size of the gas volume is read off on the scale. Upon again opening G and lowering the level-bulb, the liquid in the manometer tube may easily be drawn over as far as c; 7) is then closed again and another reading of the volume is taken, the gas being first brought to the pressure of the atmosphere by raising the level-bulb. The difference of the two readings gives the capacity of the tube between f and c. It is here presupposed that the air enclosed in B has the same pressure as the outside atmosphere. This can easily be brought about, for equi- librium is established by simply drawing the manometer tube at d out of the rubber connection. Other slight changes of pressure need not be con- sidered in making this measurement, since the volume of gas is itself very small. This constant having been determined, the measure- ment of gases is made as follows : Fill the burette completely with the confining liquid by raising the level-bulb, connect b by a capillary tube with the vessel containing the gas to be examined, and draw the gas into the burette. The stopcock must of course be in the position of D2- To measure the gas, turn the cock into the position Dx, and by then raising or lowering the level-bulb bring the liquid in both sides of the manom- eter to the same level. The stopcock G is now closed and the reading is taken. The true volume is equal to that read off plus the correction-constant. After meas- uring, draw the gas out of the manometer-tube back into the burette. The absorptions are made in gas pipettes described below, which are connected by means of capillary tubes with the tube b. Absorption Pipettes.-A. The Simple Absorption Pipette for Liquid Reayents (Fig. 181). It consists of two large bulbs, a and b, joined by the tube d. and of a thick-walled glass tube, c, of | to 1 mm. internal diameter, and bent as shown in the figure. This tube is called the capillary tube. The bulb a holds about 100 c.c., and b about 150 c.c., so that when 100 c.c. of gas is brought into b sufficient space for the absorbing liquid will remain. To protect the pipette from being broken and to facilitate its manipulation, it is screwed to a wooden or preferably an iron standard. On account of the different behavior of wood and glass or iron toward changes of temperature and atmospheric moisture, it is advisable to fasten the glass at only three places by means of metal bands and sealing-wax, the Fig. 181. than g, so that it may be possible to enclose a gas between two columns of liquid in the pipette. If a wmoden stand is used, a white porcelain plate is set in at m to render the liquid in the capillary tube more distinctly visible, but if the stand be of iron, as shown in Fig. 182, no plate is necessary. B. The Simple Absorption Pipette for Solid and Liquid lieagents. The only difference between this and the simple pipette is that in place of the bulb b there is inserted a cylindrical bulb provided with a neck through which solid reagents can be intro- duced (Fig. 182). The neck can be closed by a cork or rubber stopper, held in place by a wire. Or a glass tube closed at the top, and over which a rubber ring, cut from a rubber tube is drawm, may be used (see cut). Double Absorption Pipettes. Reagents which are acted upon by oxygen, i.e., potas- sium pyrogallate, cuprous chloride, ferrous salts, etc., cannot, of course, be kept in the above form of pipette, since the reagent in a would become inactive in a short time through contact with the air. To avoid this difficulty, Hempel devised C. The Double Absorption Pipette (Fig. 183). The rea- gent is contained in the bulbs a and b. The bulbs c and d contain water and prevent all access of air to the reagent. a is of about 150 c.c. capacity, and b, c, and d contain each about 100 c.c. The bulbs are connected by the bent tubes e, f, and g, and end in the bent capillary tube k. To permit of the use of solid reagents in this double pipette, it may be modified as was the simple pipette. D. The Double Absorption Pipette for Solid and Liquid Reagents (Fig. 183). The solid reagent is introduced into the cylindrical bulb a through the neck, a hole being bored through the wooden base opposite the neck to per- mit of this. The double pipettes are prepared for use as follows : If a solid substance is to be used, the last-named pipette (Fig. 183) is employed and the solid is introduced into a through the neck. Thb cork is then inserted and wired in. The Fig. 182. 357 Gas Analysis. Gas Analysis. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. method of filling is now the same for either of the double pipettes. Pour some water through m into the bulb d until g is full. Insert into the rubber tube I a funnel, and fill the funnel with the liquid reagent to be employed. Attach to m a piece of rubber gas-tubing about a foot and a half long, and suck with the mouth. The rubber tube may, of course, be connected with the aspirator, but in that case care must be taken that the suction (SUPPLEMENT.) To analyze a gas with the apparatus described, the burette is filled with distilled water which has been pre- viously saturated, by shaking, w'ith the gas in question. The saturating of liquids is best done in a flask half filled with the same, a rapid stream of gas being led through the liquid, and the flask vigorously shaken. If simple pipettes are used, these are so filled with the absorbent that the bulb a remains empty. The absorbent also must be saturated, by shaking, with the gases which are but slightly soluble in it. In technical work, where the same analyses are repeat- edly made, the absorbent is kept saturated through con- tinual use. Before beginning the analysis pour into the level-tube of the gas burette (Fig. 185) enough water to fill the measuring tube b and the connecting rubber tube, taking care to drive all air out of the latter by suitably raising and lowering the tubes. Then join the burette to the vessel containing the gas by means of a glass or rubber Fig. 183. does not become strong enough- to crush the bulbs. After there has been drawn into a and b sufficient reagent to fill a, the bulb d is nearly filled with water, and the gas remaining in a is driven out through the capillary by blowing into m. The pipette is now closed at I, and shaken for some time to remove from the bulb b the gases absorbable by the reagent. After any gas-bubbles which may now be in a have been driven out, suction is applied at m, and so much gas is sucked out of the bulb b that the liquid in d will enter and completely fill c. If the water first poured in is not sufficient, more must be added from time to time. In pipettes thus prepared the tubes k and e and the bulb a are filled with the absorbent, the space from b to f with a gas free from oxygen, c and g with water, and d with air (Fig. 184). While the reagent in the simple Fig. 185. tube filled with water. (This connecting tube can be easily filled with water by raising the level-tube). To fill the burette with the gas to be examined, place the level-tube on the floor and open the pinchcock/. The water will now flow into the level-tube and the gas will be drawn into the burette. When b is filled with the gas, close the pinchcock/, disconnect b from the gas-holder, and after the liquid has run down from the walls of the burette, take up the tubes by the iron feet and by raising or lowering bring the water in the tube to the same level. The gas is now under atmospheric pressure and its vol- ume is read off. To measure off exactly 100 c.c., bring somewhat more than 100 c.c. of the gas into the burette, close the latter with the pinchcock, and let the water run down. Now compress the gas to less than 100 c.c. by raising the level-tube, close the rubber tube at g with the thumb and first finger of the left hand, set the level-tube on the table, and raising the burette in the right hand to the level of the eyes, carefully open the rubber tube and let the water run back until the meniscus stands at the 100 c.c. mark. Keeping the rubber tube still com- pressed, open the pinchcock for a moment; the excess of Fig. 184. pipette may be considered to be saturated with gas only when it is kept in continual use, that in the double pipette, on the contrary, remains saturated for an exceptionally long time, since the diffusion must take place through the confining 100 c.c. of w'ater and through the narrow tube ff. The error caused by this theoretical possibility may be wholly disregarded in using the pipette. When a new filling of the pipette is necessary, the reagent may easily be driven out by inverting the pipette and blowing into I. Manipulation of the Hempel Burette and Pipettes.- 358 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Gas Analysis. Gas Analysis. gas will escape, and there remains in the burette exactly 100 c.c. of gas under atmospheric pressure. If the pipettes have the temperature of the room, as can easily be ascertained by introducing a thermometer at k (Fig. 185), the apparatus is now arranged as there shown. The pipette is placed on the wooden stand G and is connected with the burette by the capillary tube F, which is a piece of thermometer tubing of about 0.5 mm. in- ternal diameter. To avoid the enclosing of air-bubbles F is first inserted in d, the level-tube a is raised, and the pinchcock opened for a moment. Fis, in this way, filled completely with water. Then the rubber tube i of the pipette is squeezed between the thumb and the first finger of the right hand, and while thus compressed and free from air the capillary connecting tube is inserted. Upon raising the level-tube a and opening the pinch- cock the gas passes through the connecting tube into the absorption pipette. Any small air-bubbles which may have been enclosed when F was inserted into i are, at the beginning, separated from the gas by the water in F. If these bubbles do not take up more than 5 to 10 mm. space in the capillary of the pipette, they may be disre- garded, since the error arising therefrom is about 0.03 c.c. If the bubbles are larger, although with a little cleverness this may always be avoided, the gas is brought back into the burette by lowering the level-tube, and the operation is repeated. When the gas has passed over into the pipette, about | c.c. of water is allowed to follow, this water serving to rinse the capillary and to free it sufficiently from the absorbing liquid which it previously contained. The gas is now enclosed between two columns of liquid, the ab- sorbent on the one side, and the water in the capillary on the other. The pinchcocks at d and i (the latter is not shown in the figure), are closed, the pipette is disconnected by drawing F out of i, and by shaking the pipette horizon- tally the absorption of the gas is effected. The burette and pipette are then reconnected, the level- tube is placed on the floor, and the gas is brought back into the burette, care being taken that the absorbing liquid does not pass farther than the bend in F above d. The pinchcock d is closed, the pipette removed, and the reading of the remaining volume is made as before de- scribed. The manipulation of the pipettes filled with solid ab- sorbents is still simpler, for in this case no shaking is necessary, because of the large surface between the solid and the gas. On this account, also, the apparatus need not be disconnected. A separate pipette is used for each absorbent, and aside from the economy of reagents the frequent cleaning of the apparatus is thus avoided. An especial advantage is, further, the complete assurance that no loss can take place through ill-fitting glass or rubber stopcocks while the gas is in the pipette or when the pipette is vigorous- ly shaken, and that without fear of error due to the tak- ing up of gases not chemically absorbable, large amounts of reagent may be used, and the work be thereby greatly shortened. After using, the pipettes are closed at i with a piece of glass rod, and at k with a small cork. It is advisable to record the number of cubic centimetres of gas which the reagent has absorbed. When the wooden support for the pipette is used, this record is kept upon a piece of paper fastened to the back. If the iron support shown in Fig. 182 is in use, a ground glass plate fastened between the sides of the base may be con- veniently employed for the purpose. If the absorbing power of the reagent be known, waste may be avoided, and with one filling of the pipette several hundred anal- yses (the number depending upon the nature of the gases examined) may be made, with certainty throughout as to the efficiency of the absorbent. If the work has not been carelessly done, the gas bu- rette stands ready for the next analysis. If, on the other hand, reagents have been allowed to enter the burette, it must be cleansed, its simple construction rendering this quite easy. (SUPPLEMENT.) With the Hempel apparatus just described, analysis of gas mixtures may be made with great rapidity and con- siderable accuracy, the exactness being increased by the use of the Hempel-Pettersson burette. But as the un- avoidable error in measuring the gas volume in the bu- rette amounts to about 0.1 c.c., i.e., to 0.1 per cent., it is clear that if greater accuracy is desired certain modifi- cations in the method become necessary. Hempel has devised an apparatus with which results agreeing as closely as those of Bunsen and Geppert may easily be obtained, and as his method is more rapid and the appa- ratus simple in form and easy to handle, a brief descrip- tion of it is here given. Hempel's Apparatus for Very Exact Gas Analy- sis.-Usually in analytical work the gases are measured under constant (atmospheric) pressure, the observed changes in the volume, as each constituent is absorbed, giving the percentage composition of the gas. In the method about to be described the measurements are, however, made under constant volume and varying pressure. That is, after the absorption of each consti- tuent the gas is expanded to exactly the volume which it occupied in the beginning, and the change in the press- ure which it exerts is read off on a graduated barometer tube. Following Boyle's law, the values so found bear the same proportion to one another as do gas volumes under the same pressure, and hence give the percentage re- sults directly. If the gases are saturated with moisture when measured, corrections for the tension of aqueous vapor and for barometic pressure are unnecessary. The gases are expanded to a certain volume in small glass bulbs, which can easily be brought into communi- cation with a barometer. The expanding is done by lowering a movable vessel filled with mercury. The pressure exerted by the gas is then read off on the barom- Fig. 186. 359 Gas Analysis. Gas Analysis. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) eter scale. The temperature is kept constant through- out by surrounding all parts of the apparatus with run- ning water. The absorptions are made in the gas pipettes to be described later. Description of the Apparatus.-Fig. 186 gives a sec- tional view of the apparatus. The iron mercury-trough A is fastened to the wooden stand G, and is con- nected with the graduated barometer tube D by the iron tube b. The barometer tube is connected at m, by means of a rubber tube, J, with the level-bulb II. The upper part of the mercury-trough consists of the reser- voir E, whose overflow-tube (this is not given in the drawing) can be connected with a barrel by means of glass or rubber tubes. The sides of the water reservoir E are glass panes, one of which, e, extends only so deep into the mercury as to leave it easily possible to bring under it the end" of the capillary tube of the pipette B. The measuring bulb C serves to hold the gas. The tubes b and D are surrounded with larger glass tubes, and the rubber tube J is double, so that b, D, and J may be cooled with water. By means of a glass tube with three arms (this tube does not appear in the figure) water is admitted simultaneously through the tubes o, p, and q when the apparatus is in use. o, p, and q are joined to the three-arm tube by rubber tubes supplied with glass stopcocks. A part of the water enters at o, surrounds b, and enters the water reservoir E through a small canal, r. The water entering at p surrounds the barometer tube D and its bulb s. and runs through a side opening and the tube t into E. To prevent the spat- tering caused by the air-bubbles drawn along with the water, a wider tube, u, is hung upon t by means of the thread ®. A third stream of water entering at q passes through the outer rubber tube of J, and through the double-walled level-bulb and the rubber tube w into E. The outer wall of the level-bulb is simply made by joining together the ends of two broken bottles by the rubber band z. The rubber tube w is joined to the bulb by means of a cork and a bent-glass tube. By this arrangement it is possible to keep all parts of the apparatus at the same temperature. The Gas Pipettes for the Exact Apparatus.-They con- slowly ; hence it is easily possible to bring the gas resi- due in the pipette to less than toVo of a cubic centimetre without danger of the absorbent entering the measuring bulb. The pipettes must be so made that the distance a (Fig. 187) is only as large as or smaller than 3 : the capillary must be bent close to the bulb b. The pipettes are fast- ened to the wooden standard in such a manner that the capillary d comes to within a few7 millimetres of the bot- Fig. 188. Fig. 1s9. tom of the mercury-trough when the pipette is placed in the position shown in Fig. 186. The hulbs of the pipettes must be considerably larger than the volume of the gas to be brought into them. The inconvenience of carefully cleaning the pipette after the absorption is avoided by using a special pipette for each reagent. Pipettes of very different sizes are employed, the sizes depending naturally upon the dimension of the measuring bulbs. Manipulation.-One of the pipettes is filled with mer- cury, and the gas to be analyzed is passed into the pipette through the capillary. A little mercury is allowed to follow the gas and fill the capillary from g to z (Fig. 187). The gas is thus confined between two surfaces of mercury, g and w. If the samples of gas have been collected in the glass tubes shown in Figs. 169 or 170, the tubes are opened in a small mercury-trough by breaking off the immersed end of the tube with pliers. A small crucible is then slipped under the tube, and the tube is lifted out and placed in a cylinder containing mercury. The capillary of a gas pipette filled with mercury is then lowered be- neath the surface of the mercury and introduced into the tube containing the gas, and the gas is drawn over into the pipette by sucking with the mouth upon a rubber tube attached to the open end tube of the bulb a. One of the measuring bulbs {C, Fig. 186) with its iron holder is then cleaned and dried, and is brought into the mer- cury-trough of the apparatus by placing it in two porce- lain crucibles, one within the other (see Fig. 188), and filling these with mercury. If these are then lowered through the cooling water of the trough into the mer- cury, and the longer crucible removed by lowering it still further, the measuring bulb may now be lifted out of the small crucible under the surface of the mercury without a trace of water entering it. If only one cruci- ble is used, water may easily get into the bulb, the prob- able cause being surface adhesion. The instrument shown in Fig. 189 is then lowered into the mercury- trough A (Fig. 186), the end of its tube is introduced into the measuring bulb, and the air in the latter is sucked out completely. The pipette containing the gas is now placed as shown in Fig. 186, the measuring bulb, which now is full of mercury, is lowered over the end of the capillary of the pipette, and, by blowing into the open end of the pipette, some of the gas is driven over into the measuring bulb. The pipette is removed and the measuring bulb is placed over the end of the tube b (see Fig. 186), and, by means of the screw at/ is pressed down tightly upon the rub- ber stopper surrounding the end of b. The level-bulb is lowered until the meniscus of the mercury column at I exactly coincides with the cross-hair of a magnifying- Fig. 187. sist of two bulbs, a and b (Fig. 187) of the same size, joined together by the tube c and ending in the bent ca- pillary tube d. A very small-bore thermometer tube is used as the capillary, thus making it easy to avoid the introduction of absorbent into the measuring bulb or the remaining of any considerable quantity of gas in the pipette. Gases move rapidly in capillary tubes, but liquids, especially concentrated solutions of salts, move very 360 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Gas Analysis. Gas Analysis. glass fastened to the mercury trough. (This magnifier does not appear in the figure.) The reading of the ba- rometer tube, which is best done by means of a telescope, gives then directly the pressure of the gas ; this pressure is obviously independent of barometric changes, since the barometer vacuum is closed with mercury. If the gas being measured is saturated with moisture, the cor- rection for the tension of aqueous vapor is unnecessary, (SUPPLEMENT.) lary, this corresponds to approximately 0.001 c.c. of gas, since the total 35 ctm. length of the capillary has a vol- ume, determined by weighing the mercury which it holds, of 0.038 c.c. Hence from this source no appreci- able error arises. The measuring bulb is again brought into the position shown in Fig. 186, the mercury in the bulb adjusted ex- actly at e by raising or lowering the level-bulb, and the variation in pressure is read off on the graduated barom- eter tube D. As the original pressure is to the change in pressure as the original volume is to the volume ab- sorbed, the per cent, of the absorbed constituent is easily calculated. The other necessary measurements, absorptions, and explosions now follow, their order being determined by the nature of the gas. The Quantitative Analysis of a Gas Mixture.- Before proceeding with the quantitative determination of the various gases in any gas mixture, it is, of course, necessary to know what gases are present. If this is not known, a qualitative analysis of the sample must first be made. As a description of the methods of qualita- tive gas analysis would take too much space, and as the constituents of mixtures with which we purpose here to deal are usually known, the reader is referred for in- formation upon qualitative gas analysis to the exhaust- ive treatise of Clemens Winkler? Assuming that it is known what gases are present, the remainder of the article will be devoted to descrip- tions of the various methods by which the amounts of these gases may be ascertained. In the analysis of a mixture of gases the usual pro- cedure is to measure off a definite volume of the gas, and then, with the apparatus already described, to absorb Fig. 190. because there is in the bulb of the barometer aqueous vapor which at the same temperature exercises the same pressure in an opposite direction. The exact adjustment is made with the micrometer screw of the level-bulb, and the reading on the scale is then immediately made with the telescope. It is advisable to repeat both the adjustment and the read- ing. Into one of the pipettes filled with mercury there is now introduced, through the capillary, a suitable amount (about two cubic centimetres) of the desired reagent. The measuring bulb is removed from the end of the barom- eter tube, and the bulb and pipette are brought into the position shown in Fig. 190. The gas is drawn into the pipette by sucking with the mouth on a rubber tube attached to m. The suc- tion is discontinued at the moment when the mercury begins to flow from the capillary into the bulb of the pipette. The pipette then contains (see Fig. 187) mercury from ® to w, absorbent from io to x, gas from x to g, and mer- cury from g to z, so that the pipette, after it is taken out of the mercury trough, may be vigorously shaken and a rapid absorption effected. To drive the gas from the pipette back again into the measuring bulb, the apparatus is brought into the posi- tion shown in Fig. 191. One must at first blow into the pipette at m to set the gas in motion; when it has once started, the mercury in the measuring bulb acts with an aspirating effect, so that the gas passes over of itself. At the moment when the absorbent has risen to about one centimetre from the end of the capillary in the measuring bulb, the capillary is lowered under the mercury and mercury is drawn into the capillary by sucking on the rubber tube attached to m. In this manner the entering of the reagent into the measuring bulb may be avoided with certainty. If a gas thread about 1 ctm. long remains in the capil- Fig. 191. one after another of the gases present, the diminution in the volume of the gas after each absorption showing the amount of the absorbed constituent which was present in the original mixture. Those gases which cannot be absorbed, such as certain hydrocarbons and nitrogen, will still remain after the absorption of the others. The hydrocarbons are usually determined by burning them with oxygen or air, and the gas now remaining is ni- trogen. 361 Gas Analysis. Gas Analysis. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) The absorbable gases whose determination is most frequently called for are : , water with the same pipette. If care be taken that the sul- phuric acid is stopped, after the absorption, at the same point in the capillary at which it stood when the burette and pipette were first put together, then the small volume of air contained in the empty capillary tubes in the be- ginning causes, of course, no error in the determination of the heavy hydrocarbons or other gases, with the ex- ception of nitrogen. In the nitrogen determination al- lowance may be made for this air volume, but as each centimetre of the empty capillary corresponds to only 0,008 c.c., this value falls below the limit of the usual unavoidable experimental errors. After the absorption the rubber tube is taken off from the pipette, and the capillary and the larger tube are closed air-tight by little glass caps, which are pushed over narrow rubber rings placed upon the tubes. Cuprous Chloride.-This solution may be conveniently prepared as follows : Twenty-five parts of crystallized copper sulphate, and 12 parts of sodium chloride are put into 50 parts of water, which is then heated until all dis- solves. Some sodium sulphate may separate as a white powder. Filter it off and add 100 parts of concentrated hydrochloric acid and 13 parts of copper turnings (also a few pieces of platinum foil to hasten the solution of the copper) and boil until decolorized. Pour the solution into a glass-stoppered bottle and keep tightly stoppered until needed. Palladium Sponge.-Finely divided metallic palladium is heated, in portions of about one gramme at a time, nearly to redness upon the cover of a platinum crucible. The platinum cover is slowly lifted out of the flame, the palladium, as it cools, becoming covered with a coating of palladious oxide. About four grammes of the sponge thus prepared is placed in the U-tube shown in Fig. 193. To illustrate the procedure in an analysis of a gas mixt- ure with the Hempel apparatus the analysis of a sample of illuminating gas is given. First of all, the water with which the burette is to be filled must be saturated with the gas, as described above. The carbon dioxide is first absorbed with caustic potash, then the heavy hydrocarbons with fuming sulphuric acid, then oxygen with alkaline pyrogallol, and lastly carbon monoxide with the cuprous chloride solution. The resi- due, which consists of methane, hydrogen, and nitrogen, is measured, and is then led back into the cuprous chlo- ride pipette, and a portion is taken for the explosion analysis. With ordinary illuminating gas about 12 c.c. of the residue suffice for the explosion. These 12 c.c. are measured off exactly in the gas burette, and enough air is drawn in to bring the mixture to about 100 c.c. In all these measurements the running down of the liquid must be most carefully waited for, be- cause the amount of gas taken is so small that any errors that may be made are greatly multiplied. Three minutes is a sufficient time to wait for the water to run down the sides of the burette, but whatever brief interval is taken it should be the same for each measurement. To insure uniformity in this respect, a three-minute sand-glass may be used with advantage. The gas mixture is now burned in the explosion pipette (Fig. 192). This consists of the thick-walled explosion-bulb a, and the level-bulb b, which are joined together by a wrapped piece of rubber tubing. At c two fine platinum wires are fused into the explosion pipette, the ends of the wires being about 2 mm. apart. At d is a glass stopcock, and the pipette terminates in the capillary e, whose end is closed by a short piece of rubber tubing and a pinch- cock. In general the pipettes and burettes for technical gas analysis are filled with aqueous solutions, but the explosion pipette is filled with mercury. By using mer- cury as confining liquid during the explosion it is pos- sible to afterward determine the carbon dioxide formed by the combustion. If the explosion is made over water, a subsequent measuring of the carbon dioxide formed is inadmissible, because the pressure in the pipette is so high during the explosion that considerable quantities of carbon dioxide are absorbed by the water. By explod- Gases. Absorbable by Carbon dioxide (CO2). Potassium hydroxide .or barium hydroxide. Alkaline pyrogallol or phosphorus. Oxygen (0). The " heavy hydrocarbons," as Fuming sulphuric acid. ethylene, propylene, etc. Carbon monoxide (CO). Cuprous chloride. Hydrogen (H). Palladium sponge. The solutions just mentioned may be prepared as fol- lows : Potassium Hydroxide Solution.-One part of commercial caustic potash is dissolved in two parts of water. This solution is put into the simple pipette for solid and liquid reagents (Fig. 182), the cylindrical part b, be- ing first closely filled with very short rolls of iron-wire gauze. The gauze has a mesh of 1 to 2 mm., and the rolls are from 1 to 2 ctm. long and about 5 mm. thick. When the per cent, of carbon dioxide is not too high it can be completely absorbed by simply passing the gas once into the pipette. The complete manipulation does not take one minute. Small quantities of carbon dioxide are best determined by absorption in a solution of barium hydroxide and titration with oxalic acid (see Analysis of Air). Alkaline Pyrogallol {Potassium Pyrogallate).- Dis- solve 150 grammes of potassium hydroxide in 100 c.c. of water and allow it to stand until the insoluble residue has settled. Five grammes of pyrogallol (pyrogallic acid) dissolved in 15 c.c. of water is then mixed with four-fifths of the caustic potash solution, only the clear portion of the latter being used for this purpose. In the Hempel apparatus for technical analysis this solution is used in the pipette shown in Fig. 183. The 15 c.c. of the alkaline pyrogallol should first be run into the bulb a through the capillary, and then the caustic potash solu- tion be run in after it. If there is not enough solution to fill the bulb a, more of the two solutions, in their proper proportions, should be added. The solution must not be diluted with water. The absorptions should not be carried on at a tempera- ture under 15° C., for it has been observed that the po- tassium pyrogallate used for absorption is very much less active at a temperature under 7° C. At a tempera- ture of 15° C. or higher tire last trace of oxygen can be removed with certainty in the space of three minutes by shaking with the solution of potassium pyrogallate, while at lower temperatures the absorption is not complete after six minutes ; moreover, the liquid begins to foam, and this, in exact determinations, is very troublesome. A solution prepared as above gives off no carbon mon- oxide during the absorption, or at the most only such slight traces that the error- thus caused comes within the limit of error of the readings. Fuming Sulphuric Acid.-The sulphuric acid used should be so concentrated that when the temperature is slightly lowered, crystals of pyro-sulphuric acid will separate. The acid is used in a Hempel pipette which has above the large bulb b, Fig. 181, a small bulb filled with glass beads which serve to give to the sulphuric acid the largest possible surface. With this arrangement the complete absorption of the heavy hydrocarbons, and of ethylene in particular, is effected by passing the gas into the pipette but once. In this reaction some sulphur dioxide is usually formed, and, moreover, the vapor of fuming sulphuric acid has a very high tension, so that the gas residue, before being measured, must be freed from the acid vapors in the caustic potash pipette, a single passage of the gas into the pipette being also here sufficient. To avoid having the rubber connections between the pipette and burette attacked by the fuming sulphuric acid, the apparatus is so put together that the sulphuric acid does not quite fill the capillary of the pipette, and the connecting capillary is allowed to remain empty ; the short rubber tube of the burette is also freed from liquid by means of a narrow-tipped suction pipette, any reagent remaining in the rubber tube being first washed out by 362 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Gas Analysis. Gas Analysis. ing over mercury very satisfactory results are obtained, even if the carbon dioxide is afterward measured in a burette which is filled with water. After the gas is burned in the explosion pipette it is transferred to the burette and the total contraction is meas- ured. Then the carbon dioxide is absorbed with potas- sium hydroxide, and finally the oxygen in excess is ab- sorbed with phosphorus. The last determination is made merely to be sure that a sufficient excess of oxygen was present in the combustion. The manipulation and the results obtained in an anal- ysis of a sample of illuminating gas with the Hempel apparatus were as follows : Exactly 100 c.c. of the gas was measured off in the burette. Passed into caustic potash pipette and drawn directly back into the burette ; measured after three minutes. Measurement gave 4.1 c.c.; hence there was present 4.1 c.c. or per cent, carbon dioxide. Burette now connected by means of a dry piece of rub- ber tube and a dry capillary with the pipette containing fuming sulphuric acid. Gas driven over and drawn back at once into the burette. Gas now passed again into caustic potash pipette, and after being drawn back into the burette and allowed to stand three minutes, again measured. The measurement gave 8.4 c.c.; hence there (SUPPLEMENT.) This mixture is now brought into the explosion pipette filled with mercury, care being taken that the capillary remains full of water. The rubber connecting-piece is closed by a strong pinchcock, and a piece of glass rod is slipped into the end of the rubber tube. The pipette is then vigorously shaken, the glass stopcock is closed, the pipette is connected with the poles of an induction coil, and by turning on the current from a fairly strong battery the mixture is exploded. The glass stopcock is at once opened and the remain- ing gas is transferred without delay to the burette, and, after three minutes, measured. The result here was 78 c.c. The total contraction was therefore 99.6 - 78 = 21.6 c.c. The gas remaining from the combustion is now passed into the caustic potash pipette, drawn directly back into the burette, and, after three minutes, measured. The reading was 73.2 c.c. Hence by the combustion 78- 72.2 = 4.8 c.c. of carbon dioxide was formed. Although this gave all the data necessary for the cal- culation of the analysis, the remaining gas was neverthe- less passed into the alkaline pyrogallol pipette in order to be sure that an excess of oxygen was present in the combustion, or, in other words, that the gas was com- pletely burned. The measurement gave 70.2 c.c. Hence there was 73.2 - 70.2 = 3 c.c. of oxygen in ex- cess. In the combustion of the marsh-gas its own volume of carbon dioxide is formed, as may be seen from the equa- tion representing the reaction : 1 vol. 2 vol. 1 vol. CH< 4-20, = CO2 + 2H2O. Hence in the 13.2 c.c. of the gas residue taken for the explosion there wrere 4.8 c.c. of marsh-gas. The marsh-gas in the total gas residue of 82 c.c. is found by the proportion : 13.2u 82 = 4.8:®, x = 29.8 per cent, marsh-gas. Since marsh-gas in burning unites with twice its volume of oxygen, the contraction which has resulted from the combustion of the hydrogen is found by subtracting twice the volume of the carbon dioxide found from the total contraction. 21.6 - (2 x 4.8) = 12 c.c. contraction due to the burning of hydrogen. One volume of hydrogen unites, in burning, with one- half its volume of oxygen ; hence the volume of the hydrogen is found by multiplying 12 by |. Thus the 13.2 c.c. of the gas residue taken for the explosion contained 8 c.c. of hydrogen. The total amount of hydrogen is given by the proportion : 13.2:82 = 8 :®, x = 49.6 per cent, hydrogen. The nitrogen is found by subtracting the sum of all the other constituents from 100. This gives 2.6 per cent. Hence the illuminating gas contained : . 4.1 per cent, carbon dioxide. 4.3 " heavy hydrocarbons. 0.0 " oxygen. 9.6 " carbon monoxide. 29.8 " methane. 49.6 " hydrogen. 2.6 " nitrogen. , 100.0 Instead of determining the hydrogen indirectly, as just described, it may be absorbed by means of palladium Fig. 1U2. were 8.4 - 4.1 = 4.3 c.c. or 4.3 percent, of heavy hydro- carbons present. The gas now passed into the double pipette contain- ing alkaline pyrogallol, the burette and pipette closed with pinchcocks, the pipette disconnected and shaken for three minutes. Then connected with the burette again, drawn over and measured at the end of three minutes. Reading gave 8.4 c.c.; hence no oxygen was present. The gas was then passed into the pipette contain- ing cuprous chloride, and was shaken for three min- utes. Drawn back into the burette and measured after three minutes; the reading was 18 c.c.; hence there was 18 c.c. - 8.4 = 9.6 c.c. or per cent, carbon mon- oxide present. The remaining 82 c.c. of gas was then passed back into the cuprous chloride pipette, and the pipette was closed with an ordinary pinchcock. The water in the burette is poured out, the burette washed with hydrochloric acid and then with distilled water, and then filled with water which is saturated, not with illuminating gas, but with air. Twelve to fifteen c.c. of the gas residue is now meas- ured off into the burette. In this case 13.2 c.c. -was taken. So much air is then drawn in that the total volume of the gas residue taken and the air amounts to about 100 c.c. In this case it was 99.6 c.c. 363 Las Analysis. Gas Analysis. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. sponge. The arrangement of the apparatus for carrying out the reaction is shown in Fig. 193. The gas burette A and the gas pipette B are joined together by means of the capillary tubes E and the tube II. This tube H is of about 4 mm. internal diameter and 20 ctm. total length, and it contains 4 grammes of pal- ladium sponge. The gas pipette upon the stand G is filled with water, and its only use is to render it possible to repeatedly pass the gas through the palladium tube. To determine the amount of hydrogen present in a mixture of hydrogen, nitrogen, and marsh-gas, from which, so far as possible, the absorbable constituents have already been removed, measure the gas in the burette, join it in the manner described to the pipette B, which is filled with water nearly to i, place the tube II in a large beaker containing warm water of from 90° to 100° C., and, after opening the pinchcock d, drive the gas three times back and forth through I the palladium by raising and lowering the tube a. Then re- place the hot water with water of the temperature of the room, and lead the gas residue twice back and forth through the tube in order to completely cool the gas. It is in this manner pos- (SUPPLEMENT. moving any -drops of moisture winch may collect, so that the palladium may easily be shaken out of the tube in the form of a dry powder ; and then superficially oxidizing the metal by heating it on the lid of a platinum crucible. The residue of nitrogen and marsh-gas which remains after the absorption of the hydrogen is burnt by explo- sion in the manner described. The Analysis of Air.-The atmosphere of the earth consists chiefly of nitrogen, oxygen, a small amount of carbon dioxide, and varying quantities of water vapor. In addition to these constant constituents we may expect to find, at times, the various gaseous products of the many chemical processes on the earth, such as ammonia, hydrocarbons, sulphur dioxide and sulphur trioxide. The presence of solid substances, floating in the air in finely divided form, has also been detected. A small amount of the oxygen exists in the form of ozone, the quantity of this gas varying with the weather, time of year, and locality. In an analysis of air, aqueous vapor, carbon dioxide, and oxygen are usually determined. No direct method for determining nitrogen being known, its per- centage amount is ascertained by subtracting the sum of the other constituents from 100. In addition to the quantitative determination of the foregoing, qualitative tests to show the presence or absence of carbon monoxide and ozone are often desired. For sanitary purposes the determination of carbon dioxide and water are those most frequently called for. The Determination of Aqueous Vapor in the Atmos- phere.-The water can be determined with great exact- ness by leading a measured or weighed volume of air through tubes filled with calcium chloride or phosphorus pentoxide, and ascertaining their increase in -weight. It hardly need be mentioned that the calcium chloride must first be treated with carbon dioxide, so that it may con- tain no basic salt which, by taking up carbon dioxide, could change in weight. The common phosphorus pent- oxide is never pure, but always contains traces of phos- phorus and phosphorous acid. For this reason a current of dry air should be led for some time through the ab- sorption apparatus before it is used. For most purposes the hair hygrometer and the psy- chrometer give sufficiently accurate results. A very fine form of the hair hygrometer, devised by Saussure, is made by Hermann Pfister, in Berne. The construction of the instrument is based upon the property possessed by hair from which the oil has been removed, of lengthening or shortening according to the amount of moisture in the air. By alternately moisten- ing and drying the hair thoroughly for a number of times, it is given, according to Pfister, the property of quite regular expansion. Figure 194 shows the arrangement. A hair, prepared as above mentioned, is fastened to a suitable frame. The hair passes around a little wheel below, and the changes in length cause the pointer to move and give the relative moisture directly on the scale. August's psychrometer is based on the fact that water exposed to the air evaporates the more rapidly, and thereby extracts more heat from its surroundings, the farther the air is removed from the condition of satura- tion. From the lowering of the temperature (t - t') of a thermometer which has been moistened in a suitable manner, the tension e of the water vapor in the air is calculated from the formula- e = e1 - k (t - f) b, in which c1 is the tension corresponding to the tempera- ture tx, b the barometric pressure in millimetres, and k an empirical factor which has, according to the re- searches of Regnault, the following values : In small closed rooms 0.00128 " large closed rooms 0.00100 " balls with open windows 0.00077 "courts 0.00074 " open air (no wind) 0.00090 Fig. 193. sible to absorb with certainty every particle of hydro- gen. Upon drawing the gas so far back into the meas- uring tube that the water in the pipette again stands near i, the difference between the two measurements made before and»after the absorption corresponds to the hydro- gen plus the amount of oxygen in the air enclosed in the U-tube when the apparatus was put together. This air volume, and therewith its oxygen contents, may be de- termined with sufficient exactness once for all by closing, with a piece of rubber tubing and a glass rod, one side of the tube filled with palladium, cooling the tube to about 9° C. by placing it in cool water, and then, after con- necting it by a capillary with a gas burette completely filled with watef, warming it to 100° C. by placing it in boiling water. The expansion of the enclosed air vol- ume corresponds to a difference of temperature of 91° C., i.e., to a third of the enclosed volume of gas. The palladium is regenerated after the reaction by first leading air over it, whereby it becomes quite hot; re- 364 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Gas Analysis. Gas Analysis. The Determination of Carbon Dioxide in the Atmosphere. -The most varied experience has shown that through the process of breathing the air acquires properties which cause it to act deleteriously upon health when the products of breathing exceed a certain limit. Brown- Sequard and d'Arsonval8 have shown that air expired by animals has a poisonous action upon other animals, and that this poisonous property is not due to the carbon dioxide present. In fact, they themselves breathed air containing twenty per cent, of carbon dioxide, but oth- erwise pure, without experiencing any serious inconven- ience or lasting effect. Rabbits breathing air which had already been breathed by other rabbits died in from two to six days. The expired air from the first rabbits was (SUPPLEMENT.) rectly ascertained by determining the amount of carbon dioxide in the room, and for this reason we make use of Pettenkofer's suggestion and judge of the purity of the air by the per cent, of carbon dioxide present. In the open air the per cent, of carbon dioxide is quite constant, the average amount being 0.04 per cent, by vol- ume, or four parts in ten thousand. In rooms where the air impresses the new-comer as being " good," the car- bon dioxide usually varies from 0.055 per cent, to 0.087 per cent. Pettenkofer states that as soon as the carbon dioxide reaches 0.1 per cent., an odor becomes noticea- ble, and he places this amount as the limit of admissible carbon dioxide resulting from breathing. Yet the air in crowded school-rooms and in well-tilled halls and thea- tres will be found in most cases to contain carbon dioxide far in excess of 0.1 per cent., the amount often rising to from 0.25 to 0.4 per cent. To ascertain the rate of in- crease of carbon dioxide in smaller rooms, the writer re- cently analyzed the air of a room about 40 x 20 ft. and 11 ft. high, occupied by thirty-eight adults. At the be- ginning of the session the air contained 0.058 per cent, of carbon dioxide, and at the end of 28 minutes, 0.070 per cent. CO2, " " 39 " 0.101 " " 58 " 0.128 " " " 83 " 0.148 " " 103 " 0.240 " One of the best methods for quantitatively determining the carbon dioxide in the atmosphere is that first used by Saussure,18 and modified by Pettenkofer.19 It con- sists in absorbing the carbon dioxide of a measured vol- ume of air with a barium hydroxide solution of known strength, and then determining, by titration with oxalic acid, the amount of barium hydroxide still unacted upon. This method has been used by many investigators, and has been modified in minor details. A very practical form is that devised by W. Hesse, which is as follows :6 The necessary apparatus may be divided into a station- ary and a portable portion. A. The reserve apparatus in the laboratory comprises the following: 1. A glass balloon, or large bottle, holding several litres, and filled with a concentrated solution of barium hydrox- ide. One kg. of barium hydroxide and 50 grammes of barium chloride are put into from 4 to 5 kg. of distilled water. As the solution is used it is replaced by water as long as there is material in excess to saturate the water. 2. A bottle containing dilute baryta water. The bot- tle is provided with a small absorption flask containing pumice-stone saturated with caustic potash, for freeing the entering air from carbon dioxide (Fig. 195). This dilute baryta water is made by adding about 30 c.c. of concentrated barium hydroxide solution to 1 litre of wTater, or directly by dissolving 1.7 gramme of a mixture of barium hydroxide and barium chloride (20 : 1) in 1 litre of distilled water. 3. A solution of oxalic acid containing 5.6325 grammes of crystallized oxalic acid in 1 litre of water. 1 c.c. = 1 c.c. CO2. 4. A solution of phenol-phthalein, 1 part in 250 parts of alcohol. B. The portable apparatus comprises- 1. Five thick-walled conical Erlenmayer flasks of and litre capacity, and supplied with well-fitting double-bore rubber stoppers. The point to which the rubber stopper reaches is marked on the first four flasks, and their capacity up to this mark is written on the out- side of each flask with a diamond. The openings of the stoppers of these four flasks are closed with pieces of glass rod from 3 to 5 ctm. long. These rods are well rounded at the lower ends, the upper ends being widened like a button. 2. A thick-walled 10 c.c. pipette. 3. A glass stopcock burette holding from 10 to 15 c.c., graduated in tenths, and having a tip 7 to 10 ctm. long. 4. A 300 c.c. flask provided with a small guard bottle, as in A, 2, and tilled with dilute baryta water. This is Fig. 194. then passed through concentrated sulphuric acid, before being breathed by the other rabbits. This sulphuric acid destroyed the poisonous matter coming from the lungs, but allowed the carbon dioxide to pass. The air thus deprived of the pulmonary poison, but charged with the carbon dioxide as before, had no poisonous action upon the animals breathing it. In examining the air of rooms, halls, or theatres, it is of the utmost importance that we be able to ascertain to what extent the air has been vitiated by the exhalations of the people present. Unfortunately we are not able by ordinary means to determine the amount present of the organic impurities given off by the lungs, but inas- much as these injurious substances are exhaled simulta- neously with carbon dioxide their amount can be indi- 365 Gas Analysis. Gas Analysis. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. filled in the laboratory by connecting it with the large reserve bottle containing dilute baryta water, and driving the solution over through the siphon. Before beginning the experiment a few drops of a solution of rosolic acid are added to the barium hydroxide solution. The fainter the color the sharper is the reaction, but the color must not be so faint as to be indistinct. The proper coloration will last for about three days ; it is then so indistinct that a few drops of rosolic acid must again be added. 5. A 250 c.c. bottle filled with dilute oxalic acid. This is prepared by bringing 25 c.c. of the standardized oxalic acid into the 250 c.c. flask, and then filling the flask to the mark with water. 6. A thermometer. 7. A barometer (a small aneroid). The amounts of solutions here given for the portable apparatus are sufficient for thirty separate determina- tions ; in other words, at least ten analyses, including a control determination each time and the standardizing of the solution, can be made with the above quantities. Each determination of carbon dioxide by Hesse's method is a double one, the two determinations being made with volumes of air of different size. Accordingly, flasks of i and J, or i and i, or | and litre capacity are used for taking the samples of air, the sizes of the flasks chosen depending upon whether a smaller or a larger amount of carbon dioxide in the air is to be ex- pected. The samples are taken by completely filling the flasks at the place where the air is to be ex- amined with water which has the temperature of the place, and then emptying the flasks and rinsing them (SUPPLEMENT.) total oxalic acid necessary is thus determined. By pro- ceeding in this manner a very exact standardizing of the solution is possible, even in an atmosphere containing much carbon dioxide, because the solution is never strongly alkaline enough to absorb appreciable amounts of carbon dioxide from the air. The baryta water which has been shaken with the air is titrated without previously removing the barium car- bonate. The titration is made as follows : Remove the glass rod from one of the openings in the stopper, and immediately insert the tip of the burette which has already been tilled with oxalic acid solution. The tip of the burette should reach as far as possible into the flask (Fig. 196). Open the stopcock of the burette and allow the oxalic acid to enter rapidly at first, but at the last only drop by drop. If the increased pressure resulting inside the flask checks the flow of liquid from the burette, this pressure is removed by lifting the glass stopper for a moment. When the solution is neutral. i.e., when it is completely decolored, the height of the solution in the burette is noted, and the contents of the second flask is titrated in the same manner. It is clear that when the amount of carbon dioxide present is small, the accuracy of the determination is in- creased by using larger vol- umes of air. For this reason Hesse uses a flask of } or 1 litre capacity whenever the carbon dioxide is probably below the limit for dwelling- rooms, as, for example, in the open air. He also uses these sizes when erreat ac- Fig. 195. with distilled water. In this operation care must be taken that the flask is not warmed by the hand, and that no air exhaled by the operator enters the flask. To absorb the carbon dioxide, the 10 c.c. pipette is put through one of the openings of a stopper fitting the flask, its end is inserted in the rubber tube of the supply flask, and the pipette is rinsed with a little barium hydroxide so- lution drawn up into it. The pipette is now filled to the zero mark by suction, and the stopper through which it passes is inserted in the neck of the flask containing the sample of air. The barium hydroxide is now run into the flask, the second opening of the stopper being ob- structed with the finger or a glass rod to such an extent that the displaced air can just escape. The glass rod is then pushed into place, and the pipette is freed from the few drops of solution adhering to it by closing it at the top and warming it with the hand. The pipette is then drawn out of the stopper, and the second opening is closed with a glass rod. The same proceeding is re- peated with a second flask of different capacity. The two flasks are allowed to stand for some time with occa- sional shaking, and in the meantime the strength of the baryta water is determined. The strength of the baryta water is determined by putting into the small flask of litre capacity nearly as much standardized oxalic acid solution as will be required in the titration, and then running in 10 c.c. of the solu- tion of barium hydroxide. The solution is then neu- tralized by slowly running in more oxalic acid, and the I curacy is desired. Of course sufficient barium hydroxide solution must be taken to insure its being present in ex- cess up to the end of the operation. The small amount of carbon dioxide which the baryta water takes up from the air that it displaces when running into the flask may be disregarded. In using this method for determining the carbon diox- ide present in the soil or in walls Hesse employs the ap- paratus shown in Fig. 197. The air in the soil is drawn through the flask by means of a rubber pump ; the glass tubes are then removed, and the openings in the stopper are closed with glass rods. The titration is made as be- fore described, but more concentrated reagents are re- quired. In examining the air of graves, Hesse used a solution of barium hydroxide ten times as strong as that previously given (10 c.c. = about 10 c.c. oxalic acid so- lution A3 = 10 c.c. CO2). In calculating the analysis the volume of air taken is reduced to normal pressure and temperature, so that cor- rect comparisons may be made. This calculation takes considerable time, and to Hesse belongs the merit of having compiled a table 21 giving the figures by which the amounts of carbon dioxide found in the uncorrected gas volume are to be multiplied. The table contains for each degree of temperature the multiplier for any baro- metric pressure. Example- V - 223 c.c., t = 19°, b = 739 mm. ; Fig. 196. 366 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Gas Analysis. Gas Analysis. (SUPPLEMENT.) the titration of the baryta water gave 10 c.c. baryta water = 11.5 c.c. oxalic acid, and in the experiment 6.2 c.c. oxalic acid was used. Hence the amount of carbon dioxide which had already united with the barium hy- droxide was equivalent to 11.5 - 6.2 = 5.3 c.c. oxalic compensator and pipette is, from the beginning of the experiment, separated from the external atmosphere by closing the stopcocks f, g, and c, any variations in the external atmosphere have no effect. This is also true of changes in temperature ; these eliminate themselves by acting in the same manner and to the same extent upon the tension of the air in A and G, provided that the water in the outer vessel which surrounds the main parts of the apparatus is sufficiently stirred. For these reasons no observation of temperature or barometric pressure is nec- essary. The changes in volume read off on the scale give directly the amount of carbon dioxide in hundredths of per cent, by volume. " Each analysis consists of three opera- tions. " 1. The air is drawn in from the outside and is measured, the level of the mercury in the graduated tube being brought to the zero mark. The upper and narrower part of the scale, where each division denotes tuooo of the volume of the pipette, is used in analyses of atmos- pheric air, or the ordinary air of rooms, where the per cent, of carbon dioxide is at the most not higher than 0.4 per cent. In the analysis of very impure air the lower part of the graduated tube is used, each division here corresponding to TiAnr of the whole volume. In measuring the volume the stopcocks f, g, b, c, and d must be closed. " 2. The stopcocks d and b are opened, a is closed, and the air is passed from A to B. After one or two minutes Fig. 197. acid, corresponding to 0.53 c.c. CO2, and we have the proportion- [223 - 10] 1 or 213 : 0.53 = 1000 : x, x = 2.49 c.c. (in unreduced litre). The multiplier corresponding to this temperature and barometric pressure is 1.100 ; hence in the reduced litre there are 2.49 x 1.100 = 2.7 c.c., or in the ^air examined 2.7 parts per thousand of CO2 present. The whole operation, including the control determina- tion and the calculation, may be completed in from a quarter to half an hour. Pettersson and Palmqvist have described10 an apparatus for determining carbon dioxide in air, with which very accurate results can be obtained in a few minutes. Their description of the apparatus is, in part, as follows : " Fig. 198 shows the apparatus which we used, and which is easily portable. The apparatus can be covered by a wooden box which fits over it, and to which a metal handle is strongly fastened (this cover is not shown in the figure). When the apparatus has been brought to the place where the air is to be examined, the glass jacket is filled with water, the outside air is drawn in through the tube c, and by a few simple manipulations, which take only a few minutes, the carbon dioxide is determined with an accuracy of about 0.01 per cent. The dimen- sions of the apparatus are as small as possible. For ex- ample, the pipette A into which the air to be analyzed is drawn holds only about 18 c.c. With larger volumes of air it would be easy to attain greater accuracy. " The carbon dioxide is absorbed in the Orsat potash- tube B, and the air is measured, before and after the absorption, in the pipette A and its graduated tube. The measuring pipette can be filled with mercury or air, or emptied of the same, by raising or lowering the mercury reservoir E, which is joined to the lower end of the graduated tube of A by means of a rubber tube wrapped with copper wire. There must always be a drop of water on the surface of the mercury ; the air standing over the mercury is thus kept saturated with moisture. In reading the volumes the meniscus of the mercury is each time so adjusted that the pressure in A is exactly the same as the pressure of the air in the compensation cylinder C. " A differential manometer containing a drop of a col- ored liquid (petroleum, in which azo-benzol is dissolved), and connected by capillary glass tubes on the one side with A and on the other with C, serves as the indicator in these operations. By moving the reservoir E and then-having closed the stopcock d-suitably turning the screw e, the level of the mercury in A is so adjusted that the drop of liquid in the manometer stands at zero. It is obvious that in this manner it is always possible to bring back the air in A to the same pressure as that pre- vailing in the compensator C. Since the air in both the Fig. 198. the carbon dioxide is absorbed and the air may be brought back into A, b is then closed, and a is opened. "3. The mercury level in A is so adjusted that the index again takes its normal position. The decrease in volume is then read off on the scale." The Determination of Oxygen in the Atmosphere.-The 367 Gas Analysis. Gas Analysis. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. great significance which the oxygen in the atmosphere has for all living beings has made this gas the subject of frequent investigations. The amount in a sample of air can be determined with considerable accuracy with the Hempel technical apparatus already described, the oxy- gen being absorbed in the Hempel pipette filled with al- kaline pyrogallol. If, however, ■ great accuracy is de- sired, methods which admit of more delicate measure- ment of the gas volumes before and after absorption must be used. The best agreeing results upon the amount of oxygen in the atmosphere seem to have been obtained by Hempel with his apparatus for exact gas analysis (Fig. 186). He collected the samples of air in glass tubes which had previously been exhausted of air, as already described. The oxygen was absorbed with alkaline pyrogallol. Four analyses of the same sample, by one of Hempel's assistants, gave 20.936, 20.938, 20.938, and 20.938 per cent, oxygen. •The Detection of Carbon Monoxide in the Air of Rooms. -The extremely poisonous character of this gas and the ever-present possibility of its production by defective heating apparatus make its sure and easy detection a matter of great importance. If the poisonous effects of carbon monoxide showed themselves only when compar- atively large amounts of the gas were present, its detec- tion and the determination of its amount could easily be effected in the customary absorption analysis. Inas- much, however, as decided symptoms of poisoning are observed when less than of one per cent, of carbon monoxide is present, and as death would probably result from breathing air containing only one per cent, of the gas (a mouse breathing air containing 2.9 per cent, carbon monoxide died with convulsions in from one to two minutes) it is clear that quite delicate tests for the presence of the gas are necessary. The change pro- duced in the absorption spectrum of blood, upon its taking up carbon monoxide, was first utilized by H. W. Vo- gel,11 for the detection of small amounts of the gas in the air of a room. Blood which has been highly diluted with water shows in a layer two centimetres thick (a large test-tube) the absorption spectrum plotted in 1, Fig. 199, and sketched in 2. If this blood be then shaken with car- bon monoxide, the bands of the oxyhaemoglobin are re- placed by those of carbon monoxide haemoglobin, 3, the latter lying slightly nearer the violet end of the spec- trum. This displacement of the bands, though but slight, is yet sufficient to admit of its being sharply meas- ured, and, in the hands of a practised spectroscopist, is sufficient evidence of the presence of carbon monoxide in the blood. The test is, however, rendered much more delicate by taking advantage of the fact that certain re- ducing agents, when added to the blood, change the spectrum of oxyhaemoglobin to a broad and weakly de- fined band, 4, but produce no variation in the spectrum of the carbon monoxide haemoglobin. In applying these (SUPPLEMENT.) Upon pouring the blood into a test-tube and observing its spectrum through the spectroscope two absorption bands are of course visible, either those of the oxyhae- moglobin or of the carbon monoxide haemoglobin, or all together. Upon now adding a few drops of strong and freshly prepared ammonium sulphide to the blood, the spectrum, if no CO was present in the air of the room, will change in a few moments to that shown in 4. But Fig. 200. if the two absorption bands shown in 3 are still seen, the presence of carbon monoxide in the air under investiga- tion is definitely proved. Vogel states that amounts down to 0.25 per cent., or 2.5 parts in 1,000, can be clearly detected, but that the delicacy is not increased by using great volumes of air. Later, Hempel12 increased the delicacy of the test by using live mice instead of the dilute blood solution. A mouse was made to breathe for some time the air in question, and was then killed and its blood examined spectroscopically, as above. By this means Hempel was able to detect as small an amount as 0.03 per cent, of carbon monoxide. In 1880 C. H. Wolff described 13 a very effective ab- sorption apparatus adapted to the use of small amounts of blood. As his method is quite as delicate as Hempel's, and does not call for the presence of the difficultly ob- tained and elusive mouse, a description of it is here given. The apparatus used by Wolff for absorbing the carbon monoxide is shown in Fig. 200. The tubes are closed at a, b, and c with carefully ground stoppers. In filling the apparatus a little wad of glass-wool is inserted into d from above, and gently pressed into place, and the remainder of the tube as far as/is then filled with moderately fine powdered glass. This powdered glass is about as fine as ordinary gun- powder. It is freed from any fine powder and dust by sifting, and is then digested with hydrochloric acid, and carefully washed and dried. The glass powder is moistened with wrater from above ; strong suction is then applied at e by attaching an aspi- rator thereto, and the excess of water which is thus drawn off from the powdered glass is removed at c. Two cubic centimetres of dilute blood (1 to 40) is then allowed to drop from above, from a pipette, upon the moistened glass, a is closed, and by gently blowing into h with the mouth a uniform distribution of the blood solution throughout the column of powdered glass down to the glass-wool is effected. The apparatus is ready for the absorption, and it is now connected either ate with the aspirator or at h with the bottle, depending upon whether the 10 litres of air are to be drawn through or driven through. An or- Fig. 199. characteristics of the blood spectrum to the detection of carbon monoxide in the air of rooms, Vogel filled a 100 c.c. bottle with water, emptied the bottle in the room containing the gas, and then poured into the bottle two or three centimetres of blood highly diluted with water and showing only a faint red color, yet still giving the oxyhae- moglobin. bands in a column as thick as a test-tube. The blood is then shaken in the bottle for some minutes. 368 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Gas Analysis. Gas Analysis. dinary bottle containing somewhat more than 10 litres is very well suited to the taking of the sample of the air to be examined. This bottle is supplied with a double- bore rubber stopper, through the openings of which pass two glass tubes bent at right angles above the stopper. One of these tubes ends just below the stopper, and the other reaches to the bottom of the bottle. Pieces of rubber tubing of sufficient length, and closed by Bunsen screw-pinchcocks, are slipped over the free ends of both tubes. Since the bottle holds more than 10 litres, it is provided near the bottom with a mark, from which point up to the stopper the capacity is exactly 10 litres. To fill the bottle with the air to be examined, it is filled com- pletely with water, and this is then run out through the rubber tube which is connected to the longer glass tube, and which acts as a siphon. When the water has fallen to the 10-litre mark both pinchcocks are closed. To pass the air through the absorption apparatus, the same rub- ber tube which has acted as a siphon is attached to a bof- tle filled with water, and standing higher than the first bottle, and the other rubber tube is connected with the absorption apparatus. The current of air, which may be very exactly regulated by means of the screw-pinch- cock, must pass through the absorption apparatus very slowly-on an average 1,000 c.c. in twenty to twenty- five minutes. To be able to observe and regulate the passage of the air through the apparatus, 2 to 3 c.c. of water are run in at b, after the powdered glass has been moistened with the blood solution. When the experi- ment is ended this 'water is let out at c. Any burette- holder is suited to holding the absorption apparatus ; a Vogel "universal stand" is also well adapted to the purpose. If it be desired to draw the air of the room in question directly through the apparatus-a proceed- ing which is, however, not to be recommended, be- cause of the possible change in the composition of the air during the long duration of the experiment-the end h is joined by a cork to a so-called calcium chloride cyl- inder containing pieces of pumice-stone moistened with water. The air enters the cylinder from below, becomes saturated with moisture, and then passes into the absorp- tion apparatus. When 10 litres of air have been led through, in one manner or the other, the stopper at c is removed to let out the water. A small test-tube, upon which is a mark for 3 cubic centimetres, is then placed under c, the stopper at a is removed, and pure water is slowly dropped from a pipette upon the powdered glass. The blood solution is thus gradually displaced, and the washing is continued in this manner until the liquid in the test-tube amounts to 3 c.c. The tube is then taken away, several cubic centimetres of water are allowed to flow through the powdered glass, all the stoppers are in- serted, e is connected with the aspirator, and when the excess of water has thus been removed the apparatus is ready for another experiment. The same powdered glass may be used for from fifty to sixty determinations without renewal. The absorption apparatus contained originally 2 c.c. of dilute blood, 1 to 40; hence the 3 c.c. now in the test- tube have a concentration of 1 to 60. Small rectangular bottles with flat sides, which are 0.5 ctm. and 1 ctm. wide, are very well suited to holding the blood solution for the observations with the spectro- scope : these little bottles hold about 1.5 c.c. of solution, and are closed with carefully ground stoppers. One of these bottles is filled with the blood solution used in the experiment, and a second bottle is filled with the origi- nal blood solution, also diluted to 1 to 60. One drop of ammonium sulphide is added to the contents of each bottle ; the bottles are shaken, and after half an hour the spectra of the two solutions are examined, preferably by lamp-light, with a delicate pocket spectroscope. Wolff states that when there is 0.03 per cent, carbon monoxide in atmospheric air,'both absorption bands are distinctly recognizable. When the air contains less car- bon monoxide, about 0.02 per cent., the presence of the gas is show'n merely by a somewhat stronger absorption in the absorption spectrum, which now appears at D as a broad band, tbe maximum absorption of the reduced blood solution lying toward E. It is very desirable to possess for these experiments a solution of blood which is clear and which will keep for a long time.. Wolff recommends Jaderholm's method of mixing together equal volumes of blood freed from fl brine, and of cold saturated borax solution, and he says that the solution remains clear for months and does not need to be filtered before being used for the spectroscopic examination. To determine quantitatively the amount of carbon monoxide in the blood, Fodor suggests placing the blood in a small flask provided with a perforated stopper car- rying two glass tubes. One of the tubes reaches to the bottom of the flask, and through it is led in a current of air which has been previously freed from carbon mon- oxide by passing it through a solution of palladious chloride. The air, after leaving the flask through 1he shorter tube, is passed through a wash-bottle containing a solution of lead acetate, tlien through a second bottle containing dilute sulphuric acid, and finally through two U-tubes containing a palladious chloride solution as free as possible from acid. The flask is now warmed upon the water-bath to 90° C. for from one-fourth to one-half an hour, the current of air being passed through slowly and the flask being frequently shaken. The carbon mon- oxide is thus driven out of the blood, and passing through the two wash-bottles it enters the palladium solution, from which it precipitates metallic palladium. The precipitated palladium is collected, dissolved in aqua regia, and the amount of palladium determined by titration with a standard solution of potassium iodide. If a solution containing 1.486 gramme of potassium iodide to the litre is employed, then each cubic centimetre corresponds to 0.1 c.c. CO. The Detection of Ozone in the Atmosphere. - A large number of reagents may be used for the detection of ozone. For the detection of such small amounts of ozone as are present in the atmosphere, so-called ozone papers are employed. Houzeau 14 has suggested that this be prepared by dip- ping strips of Swedish filter-paper into a wine-red lit- mus solution which contains in a cubic centimetre about 0.013 gramme of the extracted constituents dried at 100° C. : the paper is dried and then impregnated to a fourth of its length with a one per cent, solution of neutral and pure potassium iodide free from iodate. The dried paper must be protected from the air, and is on this ac- count kept in tightly closed bottles. This paper is colored slightly blue by from 0.0002 to 0.0003 mm. of ozone. In air containing of its weight of ozone the paper turns blue at once. The part of the paper which is colored with the litmus solution, and is not impregnated with tbe potassium iodide, serves to show the presence in the air of acid or alkaline substances which might influence the reaction. By the action of ozone the potassium iodide is decomposed and potassium hydroxide is formed, which turns the litmus paper blue. Chlorine, nitric acid, and other acid sub- stances do not, of course, turn the paper blue ; in this respect it is superior to those which follow. According to Schonbein,16 strips of paper are satu- rated with a dilute starch and potassium iodide solution (1 KI + 10 starch q- 200 water), and these strips are ex- posed to the air. A distinction of ten shades from white to dark blue is made. Wurster 16 uses tetra-methyl-para-phenylene-diamene, which, upon taking up one atom of oxygen, is quantita- tively oxidized to a blue coloring matter, and by fur- ther union with six oxygen atoms changes to a colorless substance. To detect ozone, the paper prepared by one of the foregoing methods is fastened over the end of a glass tube by means of a rubber band, and a measured quan- tity of gas is drawn through the tube by an aspirator. Houzeau found that the ozone in the atmosphere reached its maximum in May and June, and was least in the winter months. Bockel11 states also that there are daily variations, the air usually containing more ozone 369 Gas Analysis. Genito-Urinary. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. in the evening of days from July to September than in the morning, while the reverse is true for the remaining months of the year. The Gases of the Blood.-Various forms of appa- ratus have been devised20 for the extraction of the gases from blood. Probably as satisfactory as any is the Pfliiger Mercurial Pump, shown on page 201, Vol. VI., of this Handbook. For facilitating the measurement of the blood before pumping out the gases, Geppert1 has pro- posed (page 631 a form of apparatus which with some slight modifications might be of considerable value. As the blood-gases are chiefly oxygen, nitrogen, and carbon dioxide, the analysis of the mixture is easily per- formed, the method employed depending upon the amount of gas at the operator's disposal, and upon the degree of accuracy desired. L. M. Dennis. 1 Walther Hempel: Methods of Gas Analysis. 1892. 2 Robert Bunsen : Gasometrische Methoden, 2d edition. 3 Berichte der deutschen chemischen Gesellschaft, 1879. p. 1768. 4 Hoppe-Seyler : Zeitschrift fiir analytische Chemie, 1892, 31, p. 367. 6 Francis Sutton : Handbook of Volumetric Analysis. 6 Clemens Winkler : Anleitung zur chemischen Untersuchung der In- dustrie-Gase. 7 J. Geppert: Die Gasanalyse und ihre physiologische Anwendung, 1885. 8 Brown-Sequard and d'Arsonval: Comptes rendus, 1889, 108, 267. 9 L. W. Winkler : Berichte der deutsch. chem. Gesellschaft, 24, p. 89. 10 Otto Pettersson and A. l'almqvist : Berichte der deutsch. chem. Gesellschaft, 20. 2129. 11 Hermann W. Vogel: Berichte der deutsch. chem. Gesellschaft, 10, 792. and 11. 235. 17 Walther Hempel : Zeitschrift fiir analytische Chemie, 18, 399. 13 C. H. Wolff: Correspondenzblatt des Vereins analytischer Chemiker, 1880. 3. 46. 11 Auguste Houzeau : Annales de chimie et de physique, 3d series, 1863. vol. Ixvii., p. 466 15 SchBnbein : Poggendorff's Annalen, 93, p. 627 : 94, p. 335. 16 Wurster : Berichte der deutsch. chem. Gesellschaft, 1888, p. 921. 17 Th. Btickel: Annales de chimie et de physique, 4th series, 1865, vol. vi., p. 235. 18 Th. v. Saussure: Poggendorff's Annalen, 19. p. 391. 19 Pettenkofer: Jahresbericht der Chemie, 1857, p. 132. Also, Quar- terly Journal of the London Chemical Society, 10. 292. 20 Zuntz : Handbuch der Physiologic, vol. iv., Part TI., pages 24-32. 21 Walter Hesse : Tabellen zur Reduction eines Gasvolumes auf 0° Tem- peratur und 760 mm. Luftdruck. Braunschweig, 1879. GENITO-URINARY SURGERY. Since the publica- tion of the first edition of the Reference Handbook of the Medical Sciences the advances which have been made in the department of genito-urinary surgery have been mainly in the direction of therapeutics and pathol- ogy. But little has been added to our knowledge of the anatomy and physiology of these organs. Space will not admit of an exhaustive consideration of all the literature which has appeared, the views which have been advanced, or the many new or revived meth- ods of treatment which have been suggested. It will, however, be the aim of the writer to take up the subjects, as far as practicable, in the order in which they originally appeared, and to give, as briefly as possi- ble, the practical results of our accumulated experience. Bladder. Exstrophy.-In cases of exstrophy of the bladder, Trendelenburg, with a view to narrowing the anterior gap between the pubic bones, has suggested and suc- cessfully practised double posterior symphysiotomy. Inflammation {Cystitis).-Etiology. - Th. Rossing has contributed the results of some elaborate experiments regarding the etiology of cystitis, and concludes that the urine usually contains one of several varieties of patho- genic organisms. These organisms may be pyogenic or non-pyogenic. Of the organisms which he isolated, all, with the exception of the tubercle bacillus were found to be capable of causing a decomposition of the urea. This decomposition would give rise to vesical irritation, and if the organism was of the pyogenic variety a suppurative cystitis would result. In twenty-three out of thirty healthy individuals ex- amined by this author bacteria were found in the urethra which were capable of producing this decompo- (SUPPLEMENT.) sition of urea. In this manner he explains the frequently observed fact of the occurrence of cystitis after the most careful employment of surgically clean urethral instru- ments. It was also found that the injection of pure cultures of these organisms into the bladder frequently gave rise to no symptoms of irritation when the urine was allowed to pass at regular intervals. If, however, an artificial re- tention was produced in the animal by ligature of the penis for from six to twelve hours, a decomposition would be occasioned which would give rise to an in- flammatory reaction. Similar results have been obtained by Guyon, Albar- ran, and others, and these facts seem to explain the remarkable tendency to infection observed in patients suffering from retention due to stricture or obstructive disease of the prostate. In a paper published by P. Bazy, the statement is made that in nearly every case of cystitis, where there is a genuine purulent inflammation, the origin may be traced to gonorrhoea, tuberculosis, or infection by means of in- struments. Mechanical irritation alone, such as that produced by a foreign body, new growth, or obstructive urethral or prostatic disease, cannot give rise to a suppurative in- flammation. There are, however, certain rare cases, where a cystitis appears spontaneously, without the pos- sibility of gonorrhoea, tuberculosis, or direct septic infec- tion being present. These are usually loosely spoken of as due to " cold " or the somewhat mysterious action of rheumatism or gout. This author made several such cases the object of care- ful investigation. In one of these he discovered that an alveolar abscess preceded the symptoms of cystitis by several days ; in another, a purulent balano-posthitis, and in still another, a suppurative tonsillitis had been present a short time before the occurrence of the hitherto unexplained vesical inflammation. The author stated, as his belief, that the disease in each of these instances had been produced by direct infection of the bladder by pathogenic organisms passing from the blood through the renal filter into the urine, the origin of which could be traced to the antecedent septic dis- ease. Diagnosis.-The possibility of confounding the symp- toms of cystitis with those of a posterior urethritis was pointed out in the former edition of this work. Since that time much has been written on the subject, and it is now a generally accepted fact that the occurrence of frequent micturition, vesical tenesmus, and pyuria do not necessarily indicate the presence of intra-vesical inflam- mation. In fact, in the majority of cases, these symp- toms simply indicate the presence of a posterior urethritis, for experiments have abundantly demonstrated the fact that the desire to urinate is due, in a great measure, to an irritation of the peripheral nerves located in the pros- tatic urethra, caused generally by the relaxation of the internal sphincter, and the consequent introduction of the urine into this portion of the canal. The presence, moreover, of any slight irritation, such as the introduc- tion of a foreign body, or the occurrence of an inflamma- tion of the mucous membrane in this region, will give rise to the desire for frequent micturition, and, if more se- vere, to marked vesical tenesmus. It has also been con- clusively shown that pus generated in that portion of the urethra posterior to the compressor urethrae muscle, when present in any considerable amount, invariably flows backward into the bladder. If, therefore, in a condition of acute posterior urethri- tis, the urine be passed in two glasses, both specimens will be found to contain free pus, which continually flows backward from the seat of the inflammatory pro- cess into the bladder. The first specimen, in addition, will contain the washings of the canal, which will appear as minute, thread-like bodies, to which the name of Tripperfaden lias been given by the German surgeons, who first discovered them and demonstrated their im- portance. The presence of an anterior urethritis, which might 370 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Gas Analysis. Genito-Urinary. account for these bodies, may be excluded by a previous irrigation of the anterior portion of the canal. In cystitis (excepting in those rare instances where the infection is purely a tubercular one) the decomposition of urea gives rise to the presence of a free alkali. This, if allowed to remain in the bladder for a moderate length of time, by its action on the pus, forms a thick, tenacious substance resembling mucin, which collects at the bot- tom of the bladder, is expelled with the last portion of urine passed, and is pathognomonic of intra-vesical in- flammation. Finger describes three conditions usually spoken of as cystitis: First, posterior urethritis; second, posterior urethritis, with a moderate amount of cystitis in the im- mediate vicinity of the internal urethral orifice, and third, cystitis without posterior urethritis. As an easy method of determining which of these con- ditions are present in a given case, if the patient urinates in three glasses, the following facts will be observed : (SUPPLEMENT.) procedures in cases of ruptured bladder. When the rent in the bladder-wall is known to be extra-peritoneal, measures should be at once taken to insure free drainage, and the wound left to heal by granulation. With this end in view, Cabot, of Boston, advises an immediate laparatomy, with a view to accurately determining the region of greatest infiltration which should guide the surgeon in the selection of his point of incision for drain- age. Since the report by Hofmokl and MacCormac of suc- cessful laparotomies and vesical suture in cases of intra- peritoneal rupture of the bladder, there no longer re- mains any question as to the indications for treatment in this condition. A number of other successful cases have since been reported by European and American surgeons, so that now it is generally conceded that, in the presence of symptoms indicating an intra-peritoneal rupture of the bladder, an exploratory laparotomy should be performed at once, and the wound promptly united. A subsequent perineal section should then be made, to insure adequate bladder drainage. A number of cases of rupture of the bladder have been collected and reported by Ullmann, the result of injec- tions made preparatory to the operation of supra-pubic cystotomy. New Growths.-Under this head maybe mentioned the nodular or follicular cystitis, described by Dr. Samuel Alex- ander, in a paper read before the American Association of Genito-urinary Surgeons, at Richfield, in June, 1892. This papef was a preliminary report based upon a num- ber of cases of intense cystitis, associated with haematuria, upon which the author had operated, in most cases by the supra-pubic method. In all of these cases similar lesions were found in the bladder. The mucous membrane was intensely con- gested, and was studded, especially in the region of the trigone, with nodules varying in size from one-eighth to one inch in diameter, usually oval, soft, and limited to the mucous membrane proper. These tumors consisted of lymph nodules and more diffuse collections of lymphatic cells, the former resembling the nodules found in the intestine in certain cases of enteric inflammation. These vesical nodules were surrounded by an exceedingly rich net-work of newly formed capillaries with exceedingly thin walls. The nodules were covered by the upper epithelial layer of the mucous membrane. This condition has been mentioned by Chiari, Weichel- baum, Hamburger, Toldt, Ziegler, and others, and the post-mortem appearances have been described by Pader- owski, who regarded them asffubercular growths. Alex- ander differs from this view and believes that lymph- nodules exist in the normal urinary tract, and that they may enlarge as the result of intense inflammation, and be often mistaken for tubercles in the bladder. He described the clinical history of these cases and advises supra-pubic cystotomy and thorough drainage. An extended report and description of this most inter- esting, and hitherto imperfectly understood, condition is soon to be published. Stone {Lithotomy, Litholapaxy, Supra-pubic Cystotomy). -The statistics published by Sir Henry Thompson, Dittel, and a large number of other operators, em- bracing thousands of cases of calculus disease, operated upon by all methods, conclusively show the great ad- vantage 'and low mortality of litholapaxy over all other procedures. Although several modifications have been made in the tubes and evacuating apparatus, practically nothing can be added to the description of the operation of litholapaxy which appeared in the first edition of this work. The advantages which the supra-pubic method of open- ing the bladder offers over the perineal incision, for ex- ploration and the removal of foreign bodies and new growths, are now generally recognized by surgeons. Trendelenburg advises for this operation a specially con- structed operating-table, which insures an elevation of the patient's pelvis eighteen or twenty inches above the head and shoulders. He also advocates the transverse section of the recti muscles. Condition. First specimen. Second speci- men. Third specimen. Posterior ure- Reaction generally Moderate amount Moderate amount of thritis. acid. Large amount of free pus and urethral shreds. of free pus. free pus. Posterior ure- Reaction faintly Moderate amount Larger amount of thritis, with cystitis about internal ure- thral orifice. acid or neutral. Large amount of free pus; ure- thral shreds. of free pus. pus, and moder- ate amount of mucoid material. Cystitis with- Reaction alkaline. Moderate amount Large amount of out posterior urethritis. Moderate amount of free pus. of free pus. pus and mucoid material, with crystals of triple phosphate. Treatment.-A few suggestions only can be added to those already mentioned in the first edition of this work. Internal Treatment.-Many drugs have been employed with a view to rendering the urine antiseptic, and thus preventing or inhibiting the further development of pathogenic organisms in the bladder. Of these, boric acid and salol have been found most useful. To be of value, however, they must be given in large doses, from twenty to thirty grains of the former and from forty to sixty grains of the latter during the twenty-four hours. Local Treatment. -It is desirable in cases of bladder inflammation, especially if acute, to avoid the use of in- struments beyond the compressor urethrae muscle. The old method of bladder irrigation by means of the cathe- ter had the disadvantage of producing often mechanical irritation and septic infection. Lavaux, of Paris, has shown that the bladder can be successfully irrigated without the use of a catheter by means of hydrostatic pressure furnished by the fountain syringe. To inject the bladder by this method the patient should be made to recline on his back with the thighs raised to relax the abdominal muscles. The nozzle of the syringe should be placed just within the meatus, the lips being firmly compressed upon it, and the reservoir raised to a height of three or four feet above the patient's body. If the patient will then take three or four deep inspirations, the fluid will usually pass rapidly beyond the compressor urethrae muscle into the bladder. As soon as the bladder becomes distended, a strong desire to urinate will be experienced, and the solution can be ex- pelled in the usual manner. This method has the addi- tional advantage of insuring thorough irrigation of the whole urethral canal, the deeper portion of which is usu- ally involved in cases of cystitis. In the milder cases a saturated solution of boric acid will be found most use- ful as a bladder-wash. Permanganate of potash, 1 to 10,000 ; nitrate of silver, 1 to 5,000, and bichloride of mercury, 1 to 30,000 will often be found useful in the more chronic and obstinate conditions. Injuries of the Bladder.-The tendency among surgeons during the past few years has been toward more radical 371 Genito-Urinary Surgery. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Regarding the question of primary vesical suture, Watson, of Boston, reaches the following conclusions from the analysis of one hundred cases : 1. Suture should be employed where the pathological changes in the bladder are slight. 2. Suture should be avoided when the bladder-walls are much thickened, when there is much liability to hemorrhage within the bladder, or when there is a foul cystitis. 3. Short needles and cat- gut should be used with that form of suture which is most easily introduced. Tuberculosis.-The treatment of tubercular cystitis by supra-pubic opening, curetting and cauterizing the ulcers, and the subsequent employment of iodoform, has been sufficiently successful in the hands of Guyon, Reverdin, and others to justify the hope that in early cases marked relief may often follow and recovery occasionally result. Cystoscope. An instrument designed for the purpose of affording the possibility of an ocular inspection of the interior of the human bladder. This idea was most successfully car- ried out by Josef Leiter, of Vienna. The following diagram and description of this instru- ment appeared in the Medical liecord for May 5, 1888 : introduced within the tube of the cystoscope, a limited area of the bladder-wall can be made out. If the fluid remains clear and the light is of sufficient strength, the mucous membrane may be minutely studied, its vessels, folds, and color easily appreciated, and any pathological lesion detected. By changing the position of the instru- ment, the whole interior of this viscus may be examined. This instrument has been modified in many ways. When the illuminat- ing and reception windows are placed on the posterior portion of the beak, a better view can often be had of the barfond in contracted bladders which do not admit of sufficient distention to permit of free rotation of the beak downward. Care should be taken not to allow, for any length of time, the contact of the illuminated beak with the bladder, as the heat generated by the lamp might cause a superficial destruction of the mucous membrane. There can be no question of the great diagnostic value and importance of this discovery. By the aid of this instrument, accurate knowledge re- garding the presence or absence of tu- mors, ulcerations, wounds, foreign bodies, and diverticula may be ob- tained without the necessity of an ex- ploratory operation. Another and most important use of the cystoscope is to determine from which kidney the blood or pus pro- ceeds in cases of grave pyelitis or renal hemorrhage. By watching the open- ings of the ureters, the periodic dis- charge of urine from the kidneys can be observed, and the presence of ab- normal substances in the secretion de- tected. Endoscope. An instrument for the visual in- spection of the urethral mucous mem- brane. As it would be a useless expendi- ture of time to describe the old and cumbersome instruments of Desonneaux and Cruise, mention will be made only of the modern instruments of Leiter, Brown, and Otis. The following description of the Leiter endoscope is quoted from a recent article by W. K. Otis : " Roughly described, this instrument consists of a sheet metal trough, two inches and three-quarters in length by an inch and a half wide, at the proximal end of which a concave mirror, about an inch and a half in diameter, is placed. At the distal end of the trough is the funnel- shaped opening of the urethroscopic tube, the Fig. 202. Fig. 201.-The Leiter Cystoscope in Position in the Bladder. "The Leiter cystoscope (Fig. 202) consists of a metal tube about seven inches in length, of a calibre of 22 F., having at the proximal end a funnel-shaped ocular open- ing, at the distal end a short beak, similar to that of the catheter coude. A window of rock crystal is set in the end of this beak, behind which a small electric lamp con- trolled by a switch at the ocular end is placed. A rec- tangular prism, the hypothenuse plane of which is sil- vered, is placed in the end of the straight portion of the tube, its superior face being seen just anterior to the angle formed by the beak. The dis- tended bladder is illuminated by the electric lamp, the rays reflected from its walls fall- ing on the prism experience total reflection, an inverted image being formed within the tube. The size of the image thus obtained is greatly increased by means of a telescope introduced into the tube. The image seen through the cystoscope is inverted, but right and left are not transposed." To properly examine a bladder by means of this instrument, the patient should be placed in the horizontal position on the table or operating - chair. The bladder should be emptied of urine and afterward slightly distended with a solution of boric acid. The cystoscope is then intro- duced and the current turned on. If the eye of the operator is placed at the eye-piece of the small telescope Fig. 203.-A, Brown's Wire Urethral Speculum. Open, c, The lever for spreading the vesical end, which is governed by the right-angled rod attached to the travelling screw button b ; a, the screw which spreads the base or meatus part of the speculum. B, Brown's Wire Urethral Speculum, Closed. Shows the small square aperture in the binding screw for the attachment of the illuminator. upper edge of which is about half an inch above the upper edge of the mirror. About an inch and a half from the mirror, coming through the bottom of the trough, a small electric lamp is placed, the electrical 372 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Genito-U rlnary Surgery. connections to which run through a round handle four inches long by half an inch in diameter, with a some- what complicated arrangement for controlling the lamp, fitted with binding-posts at its lower end, to which the cords from the battery are fastened. The urethro- scopic tubes are attached to the funnel by means of a sliding joint. The rays of the lamp falling upon the mirror are rendered parallel, and enough light thrown down the tube to give very excellent illumination at its distal end, the eye looking directly over the upper edge of the mirror." The urethral speculum, devised by Dr. F. Tilden Brown, of New York, and seen in the accompanying illustration (SUPPLEMENT.) " The instrument is attached to the urethroscopic tube by means of a stout wire an inch and a half in length, with hinged joints at each end, which swing in opposite directionsand are furnished with set-screws, thus allow- ing the instrument to be put in any position, though when once adjusted it will rarely be necessary to move it. If the ordinary form of tube is used the distal end is provided with a simple ring sliding-joint ; but, as I have already said, 1 greatly favor the use of the tube of Dr. Klotz.' I have arranged the instrument for this form of tube. " When the instrument is in position and the lamp il- luminated, a strong beam of light is thrown down the urethroscopic tube and the urethral mucous membrane more easily and clearly observed than with any other form of urethroscope with which I am familiar. "The advantages of this instrument are : 1. The exclusion of all extraneous light, the presence of which is a most annoying fault in the urethroscope of Leiter. 2. A very much more ready access to the urethral field, both to the eye and for instrumental applications. 3. Increased illumination. 4. By abandoning the funnel and sliding-joint an inch and a half in distance is gained from the source of illumination to the distal end of the urethroscopic tube, increasing the illumination and allowing the eye to be placed just so much nearer the mucous membrane to be examined. 5. Its extreme compactness and lightness, weighing less than one ounce, even when constructed of brass. 6. Its great simplicity, which should insure a moderate cost." Epididymitis. In the Journal of Cutaneous and Genito- urinary Diseases, May, 1888, the writer pub- lished the results of some experiments in the treatment of acute epididymitis by means of the Paquelin cautery. The method em- ployed was that first suggested by Halsted, which con- sists in lightly touching the surface of the skin overlying the affected organ with a white-hot cautery point. This, if successfully performed, requires but a few seconds, and is but moderately painful. A dressing of iodoform or boric acid ointment is then applied, and a suspensory bandage adjusted, so as to relieve any dragging upon the cord. Instant relief of pain often follows this procedure, and absorption of the inflammatory induration takes place rapidly. As a means of hastening the absorption of the prod- ucts of inflammation, after the acuteness of the at- tack has subsided, the dry poultice will often be found to be most useful. This dressing was de- scribed by the writer in a paper read be- fore the American Association of Genito- urinary Surgeons, at Washington, in 1891, and consists in a moderately thick layer of cotton-wool applied over the in- flamed testicle. This is covered by a layer of rubber protective tissue so fash- ioned as to completely enclose the in- flamed organ, with its edges extending onto the healthy skin of the scrotum in a manner to partly overlap but not enclose the healthy side. This is secured by a snugly applied gauze dressing, and the whole held in place by a suspensory bandage. By insuring protection, heat, moisture, moderate com- pression, and suspension, this dressing fulfils all the in- dications to be met in this condition, and will be found to be a great source of comfort to patients whose occu- pations necessitate any considerable amount of standing or walking. Hydrocele. Diagnosis.-As an easy method of making an accurate diagnosis in cases of suspected hydrocele, the electric illuminator devised by Dr. William K. Otis may be em- ployed. This instrument consists of small incandescent lamp contained in a cylindrical hard rubber hood (Fig. taken from his paper, being wholly of wire, allows a thorough inspection of the entire an- terior urethra at a glance. For a more minute examination, he employs a small mirror, con- structed on the same principle as the laryn- geal mirror. This, by being obliquely fastened to the handle, when passed within the canal, reflects the image of any inequality or pathological condition of the mucous membrane. By means of the urethral digit (Fig. 205), the presence of any submucous deposit or band of stricture can be readily appreciated. The light which Dr. Brown employs is from a strong electric lamp, with lens condenser reflected by means of a head-mirror. Fig. 205.-Brown's Straight Six-inch Urethral Digit. C, The movable probe-tip controlled by U-spring and thumb-screw at handle. Inch marks are indicated along the upper rod. The Otis perfected urethroscope (Fig. 206) is perhaps the most perfect appliance for urethral illumination. From his article in the New York Medical Journal the following description is taken : " This instrument consists of a metal tube or cylinder, an inch and a quarter in length by half an inch in diam- eter, closed at one end. A quarter of an inch from the open end of this tube is a plano-convex lens, so arranged that it may be easily removed for cleaning. On the in- ferior surface, near the closed end of the tube, an elbow is let in, a quarter of an inch in length and half an inch in diampipr thrmiph Fig. 206. which the source of illumination (a small incandes- cent electric lamp) is introduced, a row of holes being bored at its base to allow of ventilation. The handle of the instrument consists of a piece of hard rubber an inch long by half an inch wide, the electrical con- nections running through it to the lamp which is placed on top. This handle fits into the elbow by means of a bayonet-joint, bringing the lamp immediately be- hind the plane side of the lens. A thumb-screw ' switch ' in the handle places the lamp under control, so that it may be turned on or off at pleasure. 373 Genito-lt ri nary Surgery. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. 207). If the patient be examined in a darkened room, and the open extremity of this instrument firmly held against the posterior portion of the scrotal tumor when the cur- rent is turned on, the whole cavity of the tunica vagi- nalis will be brilliantly illuminated, and the exact loca- tion, shape, and size of the testicle can be determined. Treatment.-The injection into the tunica vaginalis of a small amount (minims 10 to 30) of the liquefied crys- tals of carbolic acid, which was mentioned in the earlier edition of this work, is the method most generally em- (SUPPLEMENT.) was regarded as a thoroughly justifiable procedure, and the great superiority of the supra-pubic over the perineal method was fully recognized. Dr. Keyes's method consists in making a supra-pubic opening, and then, by means of the finger-nail, sharp spoon, curved scissors, or rongeur forceps, completely removing all that portion of the hypertrophied gland which surrounds or obstructs the internal urethral ori- fice, leaving no pocket or pent-up prostatic sinus. The success which has attended the thorough operation ad- vocated by Dr. Keyes would seem to justify the hope that permanent relief may be ob- tained in, at least, a certain number of these exceedingly annoying and unfortunate cases. For many obvious reasons, the oper- ation in a large number of instances is im- practicable, and in these regular catheter- ization must be employed. Much has been written upon the great danger of infec- tion attending the first passage of the catheter in cases of chronic retention of urine with atony of the bladder from this cause, and the necessity for unusual care in begin- ning the " catheter life " of the patient. Professor Guyon, in the Annales des Maladies des Or- gaiies Genitounnaires, for May, 1889. gave the results of a series of experiments upon animals, illustrating the tolerance of the bladder to injected pathogenic organisms when the urine was allowed to pass at regular intervals, and the marked tendency to septic infection which fol- lowed even a temporary retention after the introduction of pure cultures of the staphylococcus aureus, strepto- coccus pyogenes, and the septic bacillus of Clado. The following method should be employed at the first catheterization of an individual suffering from chronic re- tention of urine : The patient should remain in bed for at least twenty-four hours after the introduction of the catheter. Previous to its introduction the meatus and glans should be bathed with a solution of bichloride of mercury, 1 to 5,000 ; the urethra, if suppurating, should be injected with a solution of bichloride, 1 to 5,000, or nitrate of silver, 1 to 500 ; if normal, a solution of boric acid, five per cent, will answer. The catheter, if metal- lic, should be boiled ; if of rubber or gum-elastic, it should be thoroughly washed and treated with seventy per cent, alcohol, followed by a solution of bichloride of mercury, 1 to 1,000. If great distention of the bladder exists, only a portion of the urine should be withdrawn at the first operation, that the circulation may accustom itself to the altered condition of the bladder-walls. Complete empty- ing of this viscus in extreme cases of distention, should be delayed for eight or ten days. After the removal of the urine a small amount of a saturated solution of boric acid should be introduced and allowed to remain in the bladder. These precautions should be continued until the bladder can be completely emptied without reaction. Stricture of the Urethra. The admirable chapter on this disease which appeared in the first edition of this work leaves little to be said on the etiology, pathology, and symptomatology of this condition. During the past few years the tendency among sur- geons has been toward the practical abandonment of di- vulsion and electrolysis in the treatment of urethral strict- ure. Regarding the choice of procedures in cases of stricture in the anterior portion of the canal, the same rules will hold as mentioned in the first edition, although it is now the generally accepted belief that internal ure- throtomy, when properly performed, offers the only hope of a radical cure in cases of genuine organic stricture. This method has, therefore, become the operation of choice among those surgeons who have to do largely with this class of cases. The operation advised by Otis is so simple, and, when confined to the anterior portion of the canal, so abso- lutely devoid of danger, that a brief description of the method of procedure may not be out of place in this con- Fig. 207. ployed at present. The usual manner of employing this agent is the following : A hypodermic syringe containing the required amount of carbolic acid is inserted through the scrotum into the upper portion of the distended cavity of the hydrocele, and held by an assistant. A large trocar or aspirating needle should then be introduced into the lower and an- terior part of the tumor through which the fluid is evac- uated. After the complete emptying of the sac, the con- tents of the hypodermic syringe (the needle of which is still within the cavity of the tunica vaginalis) should be slowly injected, and, after removal of the needle, evenly distributed throughout the entire cavity by gentle mas- sage. The patient should be instructed to remain quietly at home, preferably in the reclining posture, until all re- actionary pain has subsided. With a view to avoiding the double puncture, the writer employs a small trocar and cannula provided with a stopcock and threaded extremity to fit an ordinary hypodermic syringe (Fig. 208). This should be intro- duced and the fluid withdrawn. The stopcock is then turned to prevent the entrance of air, and the hypoder- Fig. 208. mic syringe containing carbolic acid screwed into place ; the stopcock is again opened and the contents of the syringe injected. Prostate. Senile Enlargement.-Nothing Jias been added to our knowledge regarding the causes of this common affec- tion. During the past few years the tendency among progressive surgeons has been toward more radical measures, with a view to the removal of the obstructing portion of the hypertrophied mass. The practice of in- cising or removing a portion of the bar, which often exists just within the internal urethral orifice, by means of the instruments of Mercier and Gouley, without open- ing the bladder, has been practically abandoned by most surgeons, owing to tbe danger attending the operation and the uncertainty of result. For several years past occasional reports have been published of the successful removal of an hypertrophied third lobe, or obstructing bar at the neck of the bladder, by means of a perineal or supra-pubic opening, with more or less complete restoration of the function of voluntary urination. It was not, however, until the publication by A. F. McGill, of Leeds, and E. L. Keyes, of New York, of their series of cases, that the operation 374 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Ge ii it o-Uri it ary Surgery. When the stricture occurs at the meatus, or within three-quarters of an inch from the orifice, the operation should consist of an incision made with a straight, blunt- pointed bistoury on the floor of the canal ; in cases where the stricture occurs at a point deeper than three-quarters of an inch from the external opening, dilating urethrot- omy, by means of the Otis dilating urethrotome, should be practised, the cut being made on the roof of the ure- thra. Cocaine is usually employed for anaesthesia. The method of producing cocaine anaesthesia is as follows. By means of an Ultzmann, or long-pointed, syringe, about thirty minims of a four per cent, solution of coca- ine is injected into the bulbous portion of the urethra. As the syringe is withdrawn, the lips of the external ori- fice are gently compressed with the thumb and fore- finger. The solution is in this manner retained for ten minutes, which is found to be sufficient to render the entire anterior urethra insensitive, save that portion compressed by the fingers. As this is always the most sensitive part, the hypodermic injection of tw'o or three minims of the solution just below the meatus wall render the whole absolutely insensitive to pain. Where this method is fully carried out, the patients rarely complain of pain during the operation. It is necessary to employ ether for anaesthesia only in cases of great nervous irrita- bility, where the sight of blood and the various necessary manoeuvres would be followed by disagreeable mental effects, and where the careful exploration of an abnor- mally sensitive deep urethra or bladder is necessary. The exact location of the deepest band of stricture is now determined by means of the bougie d boule, or urethrom- eter of Otis, and the dilating urethrotome introduced so that the location of the blade as it emerges from the staff is one-half inch below the stricture. The instru- ment is then opened until the indicator points to a cali- bre corresponding to the normal size of the canal, or until the band is stretched to its fullest capacity. The blade is then quickly withdrawn and returned. Each band should be treated in this manner until a full-sized bulb will pass to the bulbo-membranous junction with- out the slightest obstruction. The hemorrhage is usually slight, and soon ceases by gentle external compression. Regarding the after-treatment, it has been found that the daily passage of a full-sized sound to the bulbo-mem- branous junction, during the first four or five days, is by far the most comfortable for the average patient, as the pain attending its passage is always more marked and the hemorrhage more severe after the cut surfaces have been allowed to glue together for two or more days. A sound is usually passed also on the seventh, fourteenth, and twenty-first days after the operation. In cases where an acute urethritis follows the operation, or where the ure- thra is for any other reason abnormally sensitive, the daily passage of sounds seems often to increase the sever- ity of the symptoms, and in these instances the intervals should be increased to three or four days. It is rarely advisable to employ cocaine for the passage of sounds during the after-treatment. Where dilating urethrotqmy has been practised, the patient should be kept in bed until the danger from hemorrhage has passed, usually from three to five days. If recontraction of the stricture is to take place, it is usually possible to detect a tendency toward this within fourteen days from the date of the operation. When this is found, further use of the sound should be aban- doned, both on account of the severe pain caused by forcing a full-sized sound through an imperfectly di- vided and recontracting stricture, and also on account of the utter uselessness of attempting to prevent recontrac- tion by means of dilatation. The patient should be al- lowed to wait until the cut resulting from the first op- eration has healed, when a second and deeper incision should be made with a view to completely severing the cicatricial band upon which seems to depend the only possibility of a radical cure. If after three weeks the urethra is healed, and there is no evidence of recontraction of the strictures, the use of the sound may be discontinued, unless the presence of granular patches, an irritable deep urethra, or other similar conditions, calls for its employment. The use of sounds for an indefinite period after an operation, with a view to "keeping the stricture open," is wholly unnecessary. If a stricture is to be cured by urethrotomy, it must be by thorough division, which does away with the neces- sity of prolonged after-treatment by dilatation. Regarding the complications which are said to arise so frequently from this operation, the following may be quoted from a paper read by the writer before the New York Academy of Medicine, December 9, 1889, in which an analysis of one hundred and twenty personal cases of internal urethrotomy is reported, and which may serve to call attention to the comparative frequency and treat- ment of these conditions : "Among the unfavorable complications which are likely to occur as a result of this operation may be men- tioned, first, severe hemorrhage. This occurred in six of the one hundred and twenty cases. Of these, three were primary, occurring at or near the time of the operation, and three secondary, occurring after a period varying from one to three weeks. Of the latter, two resulted from a too early indulgence in sexual intercourse ; in one it occurred on the ninth day without any ascertainable cause. In but one instance was the hemorrhage alarm- ing, and that was in a case cut on the floor of the urethra. " In the treatment of hemorrhage it is rarely necessary to institute measures other than rest and gentle pressure applied against the lips of the urethral orifice, as it is only under very exceptional circumstances that the pressure is sufficient to force the blood beyond the compressor urethrae muscle into the bladder. By the use of the peri- neal crutch properly applied (a procedure first suggested by Dr. F. N. Otis) a more or less constant pressure may be exerted against the deeper portion of the urethra, thereby preventing the backward flow of blood into the bladder, if at any time the action of the muscle seems in- adequate. As an effective method of controlling even the most violent hemorrhages from the anterior urethra, Dr. Otis has suggested the introduction of a full-sized endoscopic tube, upon which any amount of pressure may be brought to bear by means of an external ban- dage. The prolonged application of heat by means of the retrojection of very hot water served in one instance to check a persistent and very annoying hemorrhage. "It may be stated, I think, with a reasonable degree of certainty, that by careful watchfulness and the em- ployment, when necessary, of these methods, in no case where urethrotomy has been performed need the patient be seriously inconvenienced by loss of blood. " Chills and fever will be mentioned as the second com- plication likely to follo-w urethrotomy. This followed the operation in three cases-in one, fever without a chill. In every instance the chill followed the passage of a sound through the deep urethra. The fever without the chill was accompanied by a severe lymphangitis and local sloughing, due to a division of a very narrow me- atus during the progress of an acute urethritis. " Epididymitis, as a complication of this operation, oc- curred in tw'o patients, and in each it followed the pas- sage of a sound through the deep urethra. "Infiltration of urine into the cellular tissue of the penis occurred in one case, where the cut was made on the floor of the urethra. The treatment of this condition consisted in regular catheterization, hot retrojection, and the external application of heat, the object being to pre- vent its recurrence, to prevent septic infection of the in- filtrated tissues, and to promote absorption. "An acute urethritis followed the operation in ten cases. In seven of these the operation was undertaken shortly after an attack of acute gonorrhoea, and w'as pre- sumably due to the fact that the gonococci had not en- tirely disappeared from the urethral mucous membrane. In the remaining three cases it could be accounted for only by the use of imperfectly cleaned instruments. " A slight ecchymosis appeared in the skin of the penis in the vicinity of a cut in four of the cases, and is of in- terest only on account of its relation to a more or less lasting curvature of the penis on erection. Of the four cases in which ecchymosis was noted, curvature occurred 375 Genito-Urinary Surgery. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) in three, or seventy-five per cent. In the remaining one hundred and sixteen patients in which no ecchymosis was noted, curvature occurred but twice, or in about 1-^ per cent, of the cases. In but one of the five cases of cur- vature did the symptoms occasion any marked inconven- ience. In this instance the penis, when erect, was bent upon itself at an almost right angle, and was at first ex- tremely painful ; this condition continued to a greater or less extent for some seven months. In all five cases, however, the organ eventually became straight and the resulting annoyance was usually slight. " In three of the five cases of curvature there had been, during the first six or eight days following the operation, an almost entire absence of complete erection of the penis, owing, in two instances, to efforts on the part of the patient to avoid the pain usually attending such an erection. In no instance was there any well-marked in- duration at the angle of curvature. " To account for the presence of an ecchymosis of the skin, the escape of blood must have taken place into the loose connective tissue lying between the fasciae, in clos- ing the cavernous and spongy bodies of the penis. For this to have taken place the cut must have extended through the urethra, the corpus spongiosum, and its fibrous capsule-in other words, the incision was unnec- essarily deep. In view of the fact that the large majority of cases of curvature occurred in patients exhibiting an ecchymosis of the skin, it is not irrational to attribute the occurrence of curvature to the same condition, which might easily result in a slight inflammatory thickening of the tissues outside the urethra, or from the presence of an organized clot, either of which would be sufficient to cause a diminution in the elasticity of the tissues which would result in curvature on erection. " If this view be correct, it is easy to understand how an absence of vigorous erections during the first few days following an operation might favor, while their presence might diminish, the tendency toward formation of in- inflammatory adhesions. ''In the treatment of this condition use has been made of inunctions of oleate of mercury, of the galvanic current, and of massage. Of these, the latter has proved to be by far the most useful. The method of its appli- cation was that suggested by Dr. Frank Hartley, who advises the introduction of a full-sized steel sound ; the massage being confined to the neighborhood of the angle of curvature, against the resistance afforded by the sound. " The prognosis regarding the time necessary to cor- rect this deformity should be extremely guarded ; as often, in well-marked cases, a period varying from six months to a year is necessary before the complete disap- pearance of the symptom. " Although my records do not furnish an example, suppression of urine may occur as a grave complication in cases of urethrotomy. This may arise either from nervous shock, from injury or violence to the deep ure- thra, or as a result of septic nephritis, and is best avoided by the practice of confining all operative procedure to the anterior urethra, and by the employment of strict antiseptic precautions." At the close of the paper the following conclusions were drawn, which may fairly be stated as representing the present opinion regarding this operation : " 1. That internal urethrotomy as a means of treating stricture of the anterior urethra is a comparatively safe opera- tion, no deaths occurring in my series of cases, and but one case of severe illness, and that directly traceable to my own bad judgment regarding the method of operating. 2. That by the intelligent application of a few well- known measures alarming hemorrhage can in nearly all cases be avoided. 3. That the occurrence of a more or less lasting curvature of the penis after operation is probably due to the extension of the incision beyond the necessary limits, and that a tendency toward this is ag- gravated by the prevention, by any means, of complete erection of the organ subsequently to the operation. 4. That with the exception of the meatus, the practice of dividing anterior strictures on the floor of the urethra should be condemned as a dangerous procedure. 5. That the passage of instruments through the deep urethra should, if possible, be avoided immediately after the op- eration. 6. That in a majority of cases, by a thorough and complete division of all stricture bands, a radical cure and complete restoration of the canal to its normal cali- bre, may be expected. 7. That all attempts to prevent recontraction in imperfectly divided strictures by means of dilatation, are useless." liesection of the urethra for dense, indurated stricture located in the membranous portion of the canal, has been successfully practised by Heusner, Konig, and others. Heusner's method consists in first dissecting out the cica- tricial tissue. The urethral mucous membrane above and below the stricture is then separated by curved scis- sors from the submucous connective tissue and the edges united with catgut sutures. The wound is drained and a catheter tied in. By this method it is said that the ne- cessity for constant dilatation after external urethrotomy in these cases is avoided. Urethritis (Gonorriicea). Since the publication of the first edition of this work a very considerable amount of progress has been made in our knowledge of this disease, its causes, its varieties, its general behavior, and its treatment. For several years subsequent to the discovery by Neisser of the gonococ- cus, the relationship between this micro-organism and the severer forms of urethritis was seriously questioned by the majority of the more conservative members of the profession. This was in part due to the fact that certain views regarding the origin of this affection had long been entertained and taught by many of the most distinguished authorities upon the subject, which were at variance with the conclusions logically following the acceptance of this theory. But the evidence which has been furnished by the pathologists has been so conclusive, and the analogy to other forms of contagious diseases so well marked, that to-day few who have taken the trouble to investigate the subject will undertake to deny the causative relationship which this organism bears to the ordinary contagious form of this affection. The acceptance of these views has naturally led to a gradual change in nomenclature, classification, prognosis, and treatment. The tendency to abandon the old and etymologically incorrect term gonorrhoea, and to adopt the more scientifically correct urethritis, has induced the writer to consider the subject under this heading. Varieties.-Acute Specific Urethritis, the so-called true gonorrhoea. A severe, highly contagious inflammation of the urethra, having a distinct period of incubation and characterized by an abundant purulent discharge contain- ing gonococci. This form of disease is invariably caused by contact with the secretions from the diseased organs of a person similarly affected. The duration of this variety, if untreated, is never under four weeks, and usually con- tinues over a period of many months. Acute Non-specific Urethritis.-A mild contagious ure- thral inflammation, having a period of incubation char- acterized by a scanty muco-purulent or purulent dis- charge, containing no gonococci. This disease has been described by Bochart and others, who attribute the symp- toms to infection from micro-organisms contained in the vaginal secretions occurring in leucorrhoea, cancerous disease of the cervix, or during menstruation. The duration of this form of urethritis is seldom over twelve or fourteen days. Acute Exacerbation of a Chronic Specific Urethritis.- A purulent urethritis, usually mild in character, occurring generally without or with but a brief period of incuba- tion in persons having an uncured urethral inflammation, who, however, may present no outward manifestations of the disease. The secretions usually contain gonococci. Urethritis may also be occasioned by traumatism, by chemical or thermal agents, by rheumatism, gout, and the lesions of tuberculosis, chancroid or syphilis, but these varieties are so infrequent as to render their con- sideration in this connection superfluous. 376 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Ge nito-Urinary Surgery. Until quite recently the majority of writers upon the subject of venereal disease admit the possibility of an idiopathic urethritis which may be occasioned by the cohabitation of a perfectly healthy man with a perfectly healthy woman, and claim, moreover, that the symptoms, duration, and ultimate results of such a condition differ in no respect from those accompanying the severer and more virulent forms of the disease. Ricord even goes so far as to enumerate, in his now famous " receipt," the conditions of temperament, complexion, the kind and amount of exercise, the diet and the drink which, in his opinion, favor this peculiar and spontaneous evolution of disease. More evidence, however, must be furnished in sup- port of this theory than that contained in the usual state- ments that "the man had no discharge " and that the most "careful speculum examination of his companion failed to reveal the slightest trace of disease." The writer has expended a very considerable amount of time and trouble during the past few years to discover an example of this variety of urethritis, and has investi- gated with no little care a large number of these sup- posed cases of "strain," with the result that in no in- stance was the urethritis to be accounted for in any manner other than by contagion from the gonococci- bearing secretions from some portion of the genito-uri- nary tract in the female or from the awakening of an uncured urethritis in the male. In view of our increased knowledge regarding the behavior of gonorrhoeal disease in both sexes, no reason exists at present for our accepting this unscientific theory of an idiopathic urethritis. Diagnosis.-The microscopic examination of the pus derived from a given case of urethritis, with a view to determining the presence or absence of gonococci, fur- nishes the most reliable data upon which to base an opinion regarding its nature, prognosis, and treatment. If gonococci can be demonstrated in the secretions, we have to do with a case of genuine gonorrhoeal or specific urethritis. The method of making this examination is as follows : A small fraction of a drop of freshly exuded pus is spread into an exceedingly thin layer on a glass slide. This, after drying by passing it rapidly through the flame of an alcohol lamp, is treated with a saturated solution of methyl-blue or gentian violet in aniline water. This is allowed to remain sufficiently long to stain the nuclei of the cells, leaving the surrounding protoplasm clear. The staining fluid should then be thoroughly washed off with distilled water and, after the application of a cover-glass, the specimen examined with a 12th oil immersion. If gonococci be present, they will be seen in clusters in the protoplasm of the pus-cells surrounding the nuclei, as deeply stained, biscuit-shaped diplococci, arranged in pairs or fours. If present in large numbers they may completely fill the cell without exhibiting any special ar- rangement. Other varieties of diplococci are said to present appear- ances so similar to those described above as to render this test alone insufficient to establish a positive diagnosis in a doubtful case. In such instances, use should be made of the test described by M. Gabriel Roux, of Lyons, which is based upon the fact that the gonococcus alone, of all the micro-organisms likely to be found in pus, is not acted upon by Gram's fluid, and consequently loses its color when treated by absolute alcohol. Roux's test should be made as follows : A specimen of pus should be stained, in the manner above described, with the methyl-blue or gentian-violet, treated with Gram's iodo-iodide solution, mounted, and examined. If diplo- cocci are present in the pus-cells, which wholly disappear after decolorization with absolute alcohol, the organisms are surely gonococci, as all other varieties of cocci retain their stain after this treatment. Prognosis.-The only point in prognosis which should be added to that contained in the first edition of this work is in regard to the duration of the contagious stage of a specific urethritis. The question is a serious one, especially when considered in its relation to marriage, (SUPPLEMENT.) and should, I believe, be regarded as equal in importance to that of syphilis. It is not infrequently the experience of physicians to be consulted by young men, a few weeks or months be- fore a contemplated marriage, -with a history of one or more attacks of gonorrhoea in former years, and who believe themselves to be well, yet who, upon a careful examination, present the unmistakable signs of a chronic urethritis. The only evidence of disease remaining in these cases may be, and frequently is, the presence in the urine of small thread-like bodies, to which the name of Tripper- faden has been given by the German surgeons who first discovered them and demonstrated their importance. These minute shreds are composed of mucus, pus, and epithelium, and represent the secretions which adhere to any granular patch or area of chronic inflammation re- maining on the urethral mucous membrane. Since the establishment of the relationship of the gono- coccus to this disease but one opinion can logically be held by those who accept this theory of gonorrhoeal in- flammations, and that is, that all secretions containing this micro-organism are capable of transmitting the dis- ease under favorable conditions. In his recently pub- lished work upon this subject Ernest Finger emphasizes this point, and states, regarding marriage, that it should be absolutely prohibited in all cases where the existence of a chronic urethritis is evidenced by the presence of the " morning drop" or Tripperfaden in the urine, until the following facts have been established : 1, That after from two to four weeks of daily observation the secretions from the urethra are found to be free from pus and made up wholly of epithelial cells ; 2, that no gonococci can be detected by the microscope, even after a purulent dis- charge has been established by the employment of irri- tating injections of corrosive -sublimate or nitrate of silver ; and, 3, that neither prostatitis nor stricture exists. Treatment.-The general acceptance of the more mod- ern views regarding the etiology of urethritis has led to the adoption of new therapeutic measures. When we consider that urethritis is a purely local affection, limited during the first few days, at least, to the anterior portion of the urethral mucous membrane, the conclusion is in- evitable that the most successful method of treatment will consist in thorough irrigation of the diseased portion of the canal with some agent capable of destroying the germs or, at least, inhibiting their development. Of the remedies employed the most successful have been bichlo- ride of mercury and nitrate of silver. Bichloride of Mercury.-The first systematic experi- ments with this agent were made by Dr. William S. Hal- sted, at the Roosevelt Hospital, in 1884. He found that by irrigating the anterior urethra with a large amount of a very diluted solution of this agent (1 to 40,000) a marked amelioration in the symptoms was at once ap- parent. His method consisted in allowing from one to two quarts of the solution to pass through the urethra twice daily by means of a fountain syringe and glass nozzle. About the same time bichloride solutions were also employed, though in somewhat more concentrated solutions, by Dr. II. Holbrook Curtis, by means of his hot retrojection apparatus (Fig. 209). This apparatus consists of a tin pail beneath which is fastened a platform for an alcohol lamp or Bunsen burner. The pail is connected by means of a rubber tube with a No. 14 F. soft-rubber catheter. The patient, seated in front of a slop-jar or pail, introduces the cathe- ter to within one inch of the bulbo-membranous junc- tion. The pail is then elevated, by means of a pulley and cord, to a height of three feet, and the solution allowed to pass rapidly through the urethra from behind forward. The temperature of the fluid is regulated by means of the lamp, and should be gradually raised until it is as hot as the patient can bear. Some five years ago an opportunity was granted the writer of undertaking a series of experiments at the out- door department of Roosevelt Hospital, with a view to testing the efficacy of the various methods of treating gonorrhoeal urethritis. By far the largest number of 377 Genito-Urinary Surgery. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. cases were treated with bichloride of mercury, for the reason that the results which followed the use of this drug seemed far more satisfactory than those of any of the others. At the end of the first year, by request of the President of the New York Dermatological Society, I reported to that body the results of my work in a paper entitled " Some Observations upon the Modern Treat- ment of Urethritis." In that communication I limited myself to the consideration of two comparatively new methods of treating this disease, i.e., by continuous irri- gation with bichloride of mercury, and by hot retrojec- tion. From an analysis of about one hundred and fifty cases treated by these methods I felt justified in drawing the following conclusions : 1. That in uncomplicated cases of acute gonorrhoeal urethritis, treated by prolonged and (SUPPLEMENT.) astringents and heat. 5. That the percentage of compli- cations occurring in cases treated by these methods is far below that observed where the ordinary treatment is em- ployed. At the close of my second year of experiments, at the request of the editor of the Journal of Cutaneous and Genite-urinary Diseases, I gave a brief resume of the re- sults in a short contribution to that journal, entitled " Genito-urinary Notes." In this paper one hundred and two additional cases were reported which were treated by the above methods, and at the conclusion of the re- port the statement was made " that the results obtained were even more satisfactory than at first and fully justify the conclusions with which I closed my first paper." Regarding the inflammatory complications, I stated that I had encountered but live in over two hundred and fifty cases, or about two per cent., while in three hundred anil fifty-two cases treated by other methods, epididy- mitis alone occurred in sixteen per cent, of the patients. Cases were occasionally encountered which would not yield to these methods. In all such the urethra was found to be the seat of one or more strictures which rendered its walls rigid and inelastic, thereby preventing the free circulation of fluid within its cavity. During the past three years I have continued to em- ploy bichloride of mercury in the treatment of this dis- ease at the Vanderbilt Clinic, Presbyterian Hospital, and in private practice, substituting largely the ordinary urethral syringe for the methods by irrigation. The method adopted in the hospital cases wTas as fol- lows : As soon as the patient presented himself at the clinic, he was instructed in the proper use of the syringe and given a large amount of a solution of bichloride of mercury, varying in strength from 1 to 16,000 to 1 to 50,000, according to the sensitiveness of his urethra and the stage of the disease. This he was instructed to use twice daily by taking ten injections in the morning and ten at night, holding each one in the urethra one minute, to imitate as nearly as possible the result obtained by ir- rigation. The patients were usually seen three times a week. As soon as the discharge lost its purulent char- acter the bichloride was suspended and a mild astringent substituted, preferably bismuth suspended in glycerine and water. Although bichloride cannot be said to be a reliable and abortive agent in the treatment of urethritis, still it undoubtedly exerts a more marked influence in subduing the painful and disagreeable symptoms of this disease than any other remedy at present in use. Nitrate of Silver.-This agent has long enjoyed the reputation of exerting a most favorable effect in acute and chronic urethral inflammations. Formerly it was largely employed in strong solutions (twenty to forty grains to the ounce) in the early stages, with the idea of aborting the disease. Quite recently an article appeared in the London Lancet describing a method which had been successfully em- ployed by a British surgeon in forty cases of acute ure- thritis. His method consists in completely removing the pus from the anterior urethra by means of a cotton swab, through an endoscopic tube, and then applying a ten per cent, solution of nitrate of silver over the entire mucous membrane anterior to the bulbo-membranous junction, an extra amount of the solution being used in the fossa navicularis. The patient is then instructed to remain in bed for two days, and employ at intervals a mild astrin- gent injection. The reaction which follows is often quite severe, but of short duration, and no further treat- ment is required. Experiments in this country with this method have failed to furnish results as favorable as those reported by this writer. Guiteras's method of employing this agent consists in administering every second day a single injection of a solution of nitrate of silver, beginning with a strength of one-half to one grain to the ounce of water, and increas- ing by one grain at each application until the strength of ten grains is reached. Before and after this application the anterior urethra is irrigated with a saturated solution Fig. 209. frequent irrigation with bichloride of mercury, recovery may be expected within two weeks. That this period may be considerably shortened by the early inauguration of treatment, by absolute rest, and by the avoidance of stimulants ; that it may be indefinitely prolonged by ir- regularity in treatment, by inordinate physical exertion, and by indulgence in alcoholic and venereal excesses. 2. That the retrojection of a hot solution of bichloride pos- sesses all the advantages of the former procedure, and in addition causes a more rapid subsidence of the inflam- matory symptoms, a greater feeling of comfort to the patient, and is attended with less annoyance and trouble. 3. That in cases of acute non-specific urethritis the fa- vorable influence of each of these methods is strikingly apparent. 4. That in cases of chronic purulent ure- thritis no agent produces such rapid and permanent im- provement as irrigation, especially when combined with 378 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Genito-U ri nary Surgery. (SUPPLEMENT.) The first effect of the treatment is to cause a slight in- crease in the pain and dysuria. This is later followed by a decided amelioration in all the distressing symp- toms. The relief in such cases is often strikingly satis- factory ; the most acute and painful seem often to yield most promptly. If the condition becomes subacute or chronic, great benefit often follows irrigation of the posterior urethra and bladder by means of the Ultz- mann deep urethral irrigating catheter (described under Chronic Prostatitis in the earlier edition of this work); the solutions found to be most serviceable in this con- dition being a saturated solution of boric acid, per- manganate of potassium (1 to 5,000), and nitrate of silver (from 1 to 2,000 to 1 to 10,000). Chronic Urethritis. Practically nothing can be added to the excellent de- scription of chronic urethritis which appeared in the earlier part of this work. In the treatment of this most obstinate condition, however, much has been learned which will be found to be of positive value. These advances have been largely in the line of local treatment. As perhaps the best method of calling attention to the advances in the therapeutics of chronic urethritis, and of noting the indications for each procedure, the following plan of treatment may be mentioned, which embraces the best of the old methods, together with any new sug- gestions which have been made during the past few years, and which have been found to be of real value. When a patient suffering from a chronic urethral dis- charge presents himself for treatment, the first step is to determine the location of the diseased area from which the secretion arises. This can be accomplished by an ocular inspection of the anterior portion of the canal by means of the endoscope, and by the careful employment of the two-glass urine test. The next step is to determine the presence or absence of four conditions which are known to prevent or retard the restoration of the mucous membrane to its normal condition of health. These conditions are stricture, the use of alcohol, sexual indulgence, and general ill-health from tuberculosis, syphilis, anaemia, malarial poisoning, etc. If stricture exists it should be removed by ure- throtomy or its untoward influence overcome by the use of sounds. The use of alcohol should be prohibited and all sources of sexual excitement removed. The gen- eral health, if impaired, should be restored by the use of rational hygienic and medicinal measures. After this has been accomplished local measures must be relied upon to effect a cure. If the inflammation is limited to the anterior urethra, injections of solutions of the mineral astringents may be employed. Of these, the best are the acetate, sulphate or sulpho-carbolate of zinc, permanganate of potassium, nitrate of silver, or bismuth suspended in glycerine and water. Of all agents used to cause a rapid cessation of a chronic, muco purulent discharge from the anterior urethra, none can be relied upon to act more happily than injections of the subnitrate of bismuth suspended in glycerine and water, in the proportion of one ounce of bismuth to four ounces of the fluid. This should be well shaken to insure a complete distribution of the bismuth throughout the fluid, and a syringeful slowly injected after each urination. The mixture should be held in the urethra at least sixty seconds, to allow a thorough precipitation of the powder upon the urethral walls. While the effect of this agent is not always in itself curative, by subduing any co-existing irritation of the canal it not infrequently happens that under its use the chronically inflamed surfaces take on a healthy, repara- tive action. The use of full-sized sounds to distend the canal once or twice a week, will often be found to be of great value, alone or combined with the local use of astringent agents. If no improvement follows the careful use of these measures, after a conscientious trial of from ten days to of boric acid. During the intervals between the injec- tions, which are administered by the surgeon, the patient employs an urethral wash of boric acid, or a mild solu- tion of zinc acetate. This method is at present being tested in a number of clinics, and with no small meas- ure of success. Posterior Urethritis. The importance of posterior urethritis as a complica- tion of the acute form of the disease has not until quite recently been fully appreciated. Under ordinary cir- cumstances, in an attack of acute urethritis, the inflam- matory process is limited to the pendulous urethra or that portion of the canal anterior to the compressor urethrae muscle. The reason of this is that the mem- branous urethra, being much less vascular and almost devoid of glands and follicles, offers an effective barrier to the backward progress of the inflammation. When, however, this barrier is passed, and the disease extends to that portion of the canal posterior to the compressor muscle, we have to do with a condition far more grave, not only from the fact that the discomfort to the patient is greatly increased by painful and distressing symp- toms, but also from the fact that a much larger extent of the mucous membrane is involved, and the liability of a still further extension to other important organs is rendered probable. Symptoms.-This complication may occur with practi- cally no subjective symptoms. Generally, however, the patient experiences a heavy feeling in the perineum, ac- companied by an increased frequency in urination and pain extending along the course of the urethra at the close of the act. In the severer cases, the calls to uri- nate may occur every few minutes, and be accompanied by marked dysuria and bladder tenesmus. There is also, generally, marked sexual hypersesthesia. Not infre- quently the last few drops of urine passed will contain blood. If the urine be examined by means of the two-glass urine test (described under Inflammation of the Bladder) the first portion will contain free pus and urethral shreds, the last free pus, and possibly a certain amount of blood, due to the violent contraction of the prostatic muscle. This condition is often mistaken for acute cys- titis. For the differential diagnosis of these conditions the reader is referred to the section on Diseases of the Bladder. Prognosis.-If the occurrence of this complication is recognized early, before the inflammation has had suffi- cient time to penetrate the glands and follicles of the prostate, and prompt measures are undertaken for its relief, the duration is often but a few days. If, how- ever, the case is neglected and allowed to become chronic, it presents serious difficulties, and is frequently most rebellious to treatment. The chief importance, however, lies in the fact that it renders the patient far more liable to an extension of the disease to the prostate, seminal vesicles, bladder, and testicles. It is highly probable that none of these complications ever occur without a previous posterior urethritis. The importance, therefore, of an early diagnosis and prompt treatment is patent. Treatment.-When the diagnosis of an acute posterior urethritis has been established, absolute rest in bed should be insisted upon, and an increased flow of urine brought about by the use of diuretics. The pain and frequency of urination should be controlled by opium or morphine suppositories. The local application of a solu- tion of nitrate of silver by means of the Keyes deep urethral syringe is perhaps the most useful procedure which can be employed in this condition. The strength of the solution should be at first not more than five grains to the ounce of distilled water. Of this, five or ten drops should be deposited in the deep urethra, after the manner described in the earlier edition of this work. Later, the strength should be gradually increased until that of fifteen or twenty grains to the ounce is reached. These applications should be made not oftener than once in three or four days. 379 Genito-U rinary. Gonorrhoeal. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) two weeks, local application should be made upon the granular patches, superficial erosions, or areas of chronic inflammation by means of the endoscope and cotton ap- plicator. Of all the agents employed for topical application ni- trate of silver will be found to be the most useful. A strength of two and one-half grains to the ounce should be at first employed, and this gradually increased until a strength of twenty to thirty grains is reached. These applications should be made not oftener than once in every four or five days. It is often advisable to alter- nate this treatment with that by the passage of sounds. The duration of the treatment is exceedingly variable. When the disease is of comparatively recent origin, re- covery may be expected in two or three weeks. If, however, the process has been going on for months or years, the disease has in all probability penetrated the glands and follicles emptying into the urethra, each of which with its surrounding capillary net-wmrk acts as a miniature incubator for the development of micro-organ- isms of disease, and exudes at intervals minute drops of germ-laden pus which serve to reinfect the surrounding mucous membrane. When the disease has involved these glandular struct- ures of the urethra it can be eradicated only by the most persistent measures, and often treatment extending over a period of many months is necessary to effect a cure. If the disease is found to be located in the posterior urethra measures must be employed which insure thorough irri- gation of this portion of the canal and the application of astringent or antiseptic agents. This is best accom- plished by the use of the deep urethral irrigating catheter and syringe of Ultzmann. The catheter should be intro- duced as far as it will go, which insures the beak being just beyond the compressor urethre muscle. A syringe- ful of the fluid should be rapidly injected and allowed to remain for several minutes in the bladder. This should afterward be passed out by the expulsive efforts of the patient, which insures a double irrigation of the posterior urethra and the therapeutic effect of the sub- stances contained in the injected fluid. Of the agents employed in this manner may be men- tioned carbolic acid, 1 to 100, permanganate of potas- sium, 1 to 5,000 or 10,000, sulphate of zinc, 1 to 500, and nitrate of silver, 1 to 10,000 to 1 to 2,000. This treat- ment should be employed every day. The occasional local use of a stronger solution of ni- trate of silver, by means of the Ultzmann or Keyes deep urethral drop-syringe, is often of great value in connec- tion with the plan above described. Five or ten minims of a solution varying in strength from one to twenty grains to the ounce, may be employed once or twice a week. Dr. Keyes has also successfully employed with this instrument a somewhat larger amount (thirty to forty minims) of a solution of sulphate of copper, thallin, and other astringents. Sounds are often of the greatest service in the treat- ment of posterior urethritis. The same rule should gov- ern their employment as in the cases where the disease is confined to the anterior portion of the canal. It not in- freqently happens that the introduction of any instru- ment into the posterior urethra results in marked local inflammation and grave systemic disorders. In these cases the irrigation of the whole urethra and bladder should be accomplished from the meatus by means of the fountain syringe, in the manner described under the treatment of cystitis, the same solutions being employed as with the deep urethral irrigating catheter. These cases are often extremely persistent and annoying, and the treatment should be accompanied by the greatest amount of patience and care, special attention being paid to the removal of all the causes mentioned above as likely to retard the recovery. Vesiculitis. An inflammation of the seminal vesicles and their excretory ducts. This complication of urethritis, though an infrequent one, is often most annoying alike to the patient and the physician. The symptoms of the acute stage are throbbing pain in the perineum and rectum, in- creased by defecation, and a more or less persistent pria- pism with frequent seminal emissions, accompanied by excessive voluptuous sensation. The fluid ejaculated is brownish in color, and if examined microscopically is found to contain pus, blood, and dead spermatozoa. The symptoms of the chronic condition are chiefly those of a chronic posterior urethritis and sexual neurasthenia, with sterility. In the acute stage the seminal vesicles can often be felt through the rectum as elongated fusiform, elastic bodies, just above the prostate. These are hot and sensitive to the touch. If the patient be instructed to pass the urine in three glasses, and between the voiding of the first and second specimens the contents of the inflamed sacs be ex- pressed by the finger in the rectum, the second specimen will contain a larger amount of pus than the first or third, and also a number of dead spermatozoa. The admixture of any considerable amount of pus with the semen almost invariably results in a death of the spermatozoa, or, at least, a serious impairment of their impregnating ability. This condition is, therefore, most important in its relation to marriage. Treatment.-In the acute stage marked relief often fol- lows the application of leeches to the perineum and hot rectal enemata. The bromides, with digitalis and cam- phor, in large doses, are useful in subduing the sexual hyperesthesia. Absolute rest should be enforced, and ap- plications of nitrate of silver be made to the deep urethra. In chronic vesiculitis local measures are of little value, and dependence must be placed upon hygienic treat- ment, including sea-bathing, a change of climate, cod- liver oil, iron, and the scrupulous avoidance of stim- ulants and sexual excitement. George Emerson Brewer. GOERBERSDORF. This place is in Silesia, Germany, not far from the city of Breslau. It was here that Dr. Brehmer started, in 1854, his famous establishment for the treatment of consumption by mountain air, cold douches, diet, etc. Goerbersdorf is situated in a fairly well-sheltered valley, and has an elevation of seventeen hundred feet above sea-level. The climate is rather severe in winter, but the admirably arranged buildings permit exercise in pure air at all seasons. Apart from the institution of Brehmer, now in charge of Dr. Ach- termann, there are two other sanitaria for diseases of the lungs, neurasthenia, etc., one in charge of Dr. Romp- ler, the other managed by the Countess of Buckler. The good results obtained at Goerbersdorf are now gen- erally held to be due quite as much to the careful super- vision of every individual and the attention to minute details of treatment, as to the climatic advantages of this locality. Season, all the year round. Edmund C. Wendt. GOLD. The use of gold as a remedy in disease is of very ancient date, although of late years it has fallen into disuse. Very recently it has been revived, and the various salts are recommended in many forms of nervous disease. Formerly it was used almost solely in the treat- ment of scrofulous and syphilitic disease. The action of the salts of gold is similar to that of mercury, being even more powerful when administered freely ; salivation is produced, and prolonged use gives rise to " aurism," with sweating, increase of urine and saliva, and mental ex- citement, with delirium and intoxication. It is eliminated by the liver, intestines, and kidneys. It is still used occasionally for syphilitic troubles, and will often pro- duce a cure where mercury and the iodide of potassium have been used without any apparent benefit. It is said to prove most efficient in syphilitic ulceration of the throat, ozena, diseases of bones, and syphilitic phthisis. Its revival, however, is principally in the treatment of the various neuroses, hysteria, ovarian disease, sterility, impotence, hypochondria, etc. The beneficial effects of the use of the preparations of gold are most evident on the brain and nervous system, which is stimulated and ren- 380 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Ge ni to-ITri nar y. Gonorrhoeal. dered more active, and, when the use is persisted in, the symptoms of this stimulation continue to increase until the toxic condition supervenes. The use of gold is indi- cated whenever there is depression of the central nervous system, and should be avoided when cerebral hyperaemia is present. Auri et sodii chlor idum, the official salt of the U. S. Pharmacopoeia, has shown itself of service in ner- vous dyspepsia, in doses of one-twentieth grain, three times a" day. Amenorrhoea from torpor of the ovaries, and chronic metritis with scanty menses, are often re- lieved. Bartholow has recommended it in sterility due to functional debility of the sexual organs. It has been used in the treatment of progressive general paralysis, in which affection it increases the patient's powers of re- sistance and retards the progress of the disease. It is given in doses of one-thirtieth grain, morning and even- ing. Every fortnight the dose is to be increased until one-sixth grain is reached. This amount is continued for another fortnight and then stopped for a month. This salt of gold was recently brought into prominence by its reported value as a means of treating pulmonary phthisis. Its use for this purpose was introduced by Dr. Heneage Gibbs who, with Dr. Shurley, had experimented upon animals and used it very extensively in their prac- tice, and found it to prove of decided value. Its use is combined with the inhalation of chlorine gas and the hy- podermic injections of iodine. The chlorine gas may be obtained from chlorinated lime by the addition of dilute hydrochloric acid, from one-half to six drachms of the former and from one to three drachms of the latter, in an open vessel in a closed room. Before the gas is produced the air should be impregnated with a spray of chloride of sodium, about two ounces in a compartment of five hun- dred and fifty cubic feet. The patient should only re- main in the room for ten minutes at first, but this may be increased to twenty or thirty minutes. It may be re- peated two, three, or four times a day. In laryngeal phthisis, or when it may prove more convenient, the gas may be evolved in an inhaler. The iodine and gold are introduced by means of an hypodermic syringe in the gluteal region. Iodine is used in one-twelfth grain doses daily, to begin with, and gradually increased until one-half to one grain is reached. The gold and sodium is then used, and hypodermics of one-thirtieth to one-twen- tieth grain daily are administered at first, the dose being gradually increased until one-fifth or one-third grain is reached. It is often necessary to discontinue one or the other, as " iodism " or "aurism" is threatened. They may also be used alternately. It is found that the com- bination of gold with the iodine allows a much larger amount of the latter drug to be administered without causing toxic symptoms. At first, loss of weight and increase of temperature and other signs of disturbance follow its use, but these soon disappear, and a marked improvement takes place. The authors of this remedy base their hopes of a successful treatment of this disease upon the view that consumption is not the same as gen- eral tuberculosis, and is not due to the generally recog- nized bacillus. They consider that phthisis pulmonalis is a local affection of the lungs of an inflammatory char- acter, the progress of which is accompanied by the pro- duction of chemical substances which possess a toxic action. The object of the treatment is to neutralize these poisonous substances, allay the inflammatory process, and restore the vital powers. Chlorine, iodine, gold, iodoform, liq. potass®, potassic permanganate, iron ar- seniate, the mercurial salts, were all found to possess these valuable properties, but the first three were se- lected as being the most efficacious and least disturbing to the system. * Auri chloridum occurs in long orange crystals. It is very hygroscopic and readily soluble in water, alcohol, and ether. It is a powerful caustic and enters into the composition of many cancer-pastes. As a caustic for epithelioma, one-sixth to one-quarter grain in powder may be rubbed into the affected part or applied in solu- tion. A case of lupus is reported as having been success- fully treated with the hypodermic use of chloride of gold (SUPPLEMENT.) and cyanide of potassium, a solution of the strength of one per cent, of each being employed. Nearly the whole face and forehead were involved, and tubercle bacilli were found to be present. Six injections were given in the course of eleven days, the dose varying from one-thou- sandth to one-hundredth grain. On the second day the symptoms showed signs of improvement ; on the third day the swelling of the face subsided, some old sears began to shed cuticle, and a labial ulcer decidedly de- creased ; by the twelfth day several ulcers were soundly healed, and the remaining ones were clear and covered with healthy granulations. On the fourth day of treat- ment a mild intoxication, drowsiness, and a slight rise of temperature were noticed, but they rapidly disap- peared. Auri Bromidum.-This combination has been utilized to secure the combined effects of gold and bromine on the central nervous system. It is a dark brown, non- deliquescent powder, soluble in water and ether ; dose, one-fortieth to one-hundredth grain, to be increased to one-fifth grain, well diluted. The solution should not be exposed to light. It has been used in hysteria, epilepsy, migraine, and the various affections of the nervous sys- tem in which the action of these drugs is indicated. In epilepsy it has acted very satisfactorily : the action of the drug was rapidly manifested, the fits becoming reduced in force and number, and in some cases they were com- pletely checked. The introduction of this remedy caused Dr. Shtcherbok to undertake a series of experiments with the cerebral cortex exposed, to ascertain the action of the drug, its effect as compared with other bromides, and in what quantities it should be given. The drug was admin- istered by intravenous injection, by hypodermic injec- tion, and through an oesophageal tube into the stomach. It was found that artificially induced epilepsy could be averted by the intravenous injection of one-twelfth grain for each thirty-two ounces of body weight. Larger doses were required when used by hypodermic injection, and by the stomach one and one-half to three grains were needed. No cumulative action was detected. The drug seemed to affect mainly the tracts of communication be- tween individual motor-cells, as well as those between remote areas of the cerebral cortex. Bromide of gold appeared more active than the commonly used bromides in the proportion of ten to one. Other compounds, as the cyanide, iodide, oxide, etc., have also been tried for the treatment of syphilis, but with uncertain results. Beaumont Small. GONORRHCEAL RHEUMATISM. Since the publica- tion of the Reference Handbook many investigations and observations have been made to determine more ac- curately the pathology of this affection. The results have not been very decisive, except, perhaps, to settle more firmly the dependence of some of the cases upon the gonococcus. A number of investigators have found the micro-organisms not only in the urethra but in the joints as well, whither they had been carried by means of the lymphatics, the blood circulation, and possibly the white corpuscles. There is still reason to believe that some of the cases partake more of the character of ordi- nary septicaemia, although differing from it in certain particulars ; while some are still, on any theory so far advanced, inexplicable. In the management of this affection it has been proven more conclusively that it is necessary to remove all points of irritation in the urinary mucous membrane, even to the relief of stricture, that may have caused the affection, as a first step to its cure. Iodide of potassium as an internal remedy is still popular, as well as mercurials in moderation. Some advocate the latter in quantities suf- ficient to produce their constitutional effect promptly, at the beginning of the attack. Counter-irritation over the inflamed joints by blisters and the actual cautery are becoming more popular, as are also stimulating embrocations, and heat. In the original article on this subject, the violent breaking of old, false anchyloses, long after their for- mation, was commended as rational. Less has been done 381 Gonorrhoeal. Gout. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. iii this line than was to have been expected. The meas- ure deserves to be more often employed. On rational grounds it has much to commend it ; the anchylosis is due to fibrous deposits ; at most, rupture of this material should result in producing some debris of soft substance that is readily absorbed, and after it possibly a slightly roughened surface ; and roughened joint surfaces after the disappearance of causative pathological processes, and with good nutrition, tend to disappear. Sepsis is, of course, impossible, except with a very low condition of vitality of the patient. Dr. B. E. Brodhurst declares that he has operated on a large number of cases of fibrous anchylosis in this manner without a single accident, such as fracture, dislocation, or inflammation. He forcibly breaks up the adhesions under chloroform. If contract- ures of muscle have occurred, he cuts the tendons before forcing the adhesions, and if the contracture is extreme, he waits for the skin punctures to heal before doing the joint operation. After the operation, passive motion must be resorted to to keep what has been gained. Norman Bridge. GOUT. In attempting to compile, in the form of a supplement, such facts and suggestions of importance concerning gout as have been developed by clinical and experimental investigators since the publication of the third volume of the Reference Handbook, containing the excellent article by Dr. Mendelson, I find nothing necessary to add regarding the history, varieties, and symptomatology of the disease. The additional materi- als relate almost wholly to its etiology, pathology, and therapeutics. To show more clearly the true relations and practical bearing of such new materials I have felt the necessity of repeating or restating many items that are to be found in the original article by Dr. Mendelson, instead of making frequent references to the same, which would be less convenient for the reader as well as for myself. Such restatements are chiefly in the beginning, and seemed desirable as an introduction to the mere facts that follow. The causes of gout, as of most other dis- eases, are conveniently divisible into predisposing and exciting causes. The first include all such influences as either aid in developing the direct exciting cause or in lessening the power of the system to resist the action of such cause. The second embraces only such agents or in- fluences as are capable of directly exciting the active symp- toms of the disease. The more important of the pre- disposing influences are : heredity ; alcohol, especially as existing in fermented liquors, such as beers and wines ; ex- cess of food, especially of the nitrogenous class ; deficient physical exercise ; deficient ventilation ; excessive mental exertion and depressing emotions, such as grief and anx- iety ; and lead. A careful study of the modus operandi of these various causes will render it apparent that heredity and continued severe mental activity produce their pre- disposing influence by increasing the susceptibility and lessening the vital resistance of the living tissues ; while all the others act chiefly in the direction of lessening the internal respiration, or, in other words, the distribution of oxygen from the pulmonary to the systemic capillaries, and thereby interfering with the metabolic processes on which the formation of natural excretory products de- pends. That depressing mental emotions, deficient exer- cise, and poorly ventilated and overcrowded dwellings lessen the fulness and activity of respiration, and in the same ratio diminish the internal distribution of oxygen, has long been well known. That alcohol, by its action on the haemoglobin and albuminous elements of the blood, still more directly diminishes the internal distribution of oxygen and thereby lessens the natural metabolic process- es, has been abundantly demonstrated. It is not, how- ever, diminished distribution of oxygen alone that favors the development of gout, but it is the co-existence of an abundant supply of oxidizable or fermentable material in the blood, such as is derived from overeating or the drinking of such fermented drinks as contain sugar, free acids, and other fermentable materials. Therefore it may be correctly stated that it is neither deficiency of oxygen alone, nor excess of either alcohol or fermentable material (SUPPLEMENT.) alone, but the co-existence of all three, that most directly favors the formation in the blood and tissues of an excess of uric acid and urates, and consequently most actively predisposes to attacks of gout. The direct exciting cause of gout is very generally con- ceded to be the presence in the blood or tissues of an ex- cess of uric acid, generally in combination with sodium in the form of bi-urate. Since the valuable paper of Dr. Garrod in 1848, much additional knowledge has been gained through the investigations of J. Mortimer Gran- ville, W. Ebstein, A. Haig, Sir William Roberts, Cam- merer, and others. As the uric acid in the form of urates of sodium and potassium constitutes a natural constituent of the fluids of the body, it is of great practical impor- tance to know by what processes it is developed, through what channels it disappears, and the conditions under which it accumulates in abnormal quantities in the sys- tem. Uncombined uric acid (CTNHLOs) is a crystalline substance, extremely insoluble, and derived from nitro- genous metabolism. Whether its evolution and com- bination with sodium and potassium takes place at some stage of the digestive and assimilative processes, or in some part of the retrograde tissue changes, cannot be re- garded as definitely determined. Dr. Garrod, and per- haps a majority of writers on the subject since his orig- inal essay, have regarded the uric acid as only one stage of the processes by which nitrogenous tissues are resolved into urea for elimination. The uric acid being less oxi- dized and much less soluble than the urea, its accumula- tion was regarded as the result of incomplete oxidation of the products of tissue metabolism ; a view strongly supported by the fact that very many of the conditions and circumstances that are known to retard the internal respiration or distribution of oxygen to the tissues are accompanied by an increase of the uric acid or urates. J. Mortimer Granville, however, claims that the uric acid is formed chiefly in the liver, from imperfect duo- denal digestion. Regarding more particularly the clini- cal phenomena preceding and accompanying attacks of gout, he sees evidence of inactivity of the liver by which less bile passes into the duodenum to co-operate with the pancreatic fluid in saponifying the food-elements. In consequence of this defect the food-elements are taken up in only an emulsified condition and carried by the portal vessels to the liver, which so alters its glycogenic and other functions as to lead either to the "excessive formation of uric acid or to the arrest of the subsequent processes by which the acid should be converted or de- stroyed." On the other hand, W. Ebstein, of Gottingen, in his valuable treatise on the nature and treatment of gout, claims that the production of the greater part of the uric acid found in the living system takes place in the muscular structures, and to some extent in the marrow of the bones. In support of this claim he refers to the fact that such kindred bodies as kreatin, sarkin, and xanthin were found in muscular structures; to the de- posits of uric acid in birds and reptiles, and to the guanine gout in pigs ; and he might have added the presence of uric acid in cases of splenic leucocytlnvmia. That the production of uric acid in the system is increased by nitrogenous food, by such disorders of digestion as are accompanied by acid fermentation, and by whatever lessens the distribution of oxygen from the pulmonary to the systemic capillaries, has been well shown by the re- cent investigations of Dr. A. Haig, Lehmann, Sir William Roberts, and others ; which renders it certain that it is derived from either nitrogenous food-elements or from the nitrogenous tissues, or more probably from both. And a careful review of all the facts within our reach leads to the conclusion that the uric acid is not exclu- sively the precursor of urea, but an independent product of nitrogenous metabolism undergoing elimination largely in the form of soluble urates, but in a lesser degree also as urea. The natural or physiological condition of uric acid in the body is that of a quadri-urate (Roberts), and not in a free or uncombined state. So long as it remains in the form of quadri-urate it is freely soluble in the blood-serum, synovia, and tissue fluids, and undergoes ready elimination through the kidneys, and consequently 382 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Gonorrhoeal. Gout. it causes no disturbance or symptoms of disease. Con- cerning the history of uric acid in the living body, both in the normal and in the gouty state, Sir William Roberts, in his third Cro'onian lecture recently delivered before the Royal College of Physicians of London, says : " It has been shown that in normal urine uric acid always exists as a quadri-urate ; and that in animals which eli- minate their nitrogen as uric acid, like birds and serpents, the urinary secretion is composed entirely of the same combination. Proof has also been furnished that in liquids containing alkaline carbonates-such as the serum of the blood and its derivatives, lymph and synovia- uric acid passes into solution in the first instance as a quadri-urate. From these considerations it may be in- ferred that in the normal state uric acid is primarily taken up in the system as as quadri-urate, that it circulates in the blood as a quadri-urate, and that it is finally voided with the urine as a quadri-urate. In perfect health the elimination of the quadri-urate proceeds with sufficient speed and completeness to prevent any undue detention or any accumulation of it in the blood. But in the gouty state this tranquil process is interrupted, either from de- ficient action of the kidneys or from excessive intro- duction of urates into the circulation, or from some other cause, and the quadri-urate lingers unduly in the blood and accumulates therein. The detained quadri-urate, circulating in a medium which is rich in sodium car- bonate, gradually takes up an additional atom of base and is thereby transformed into bi-urate. This transformation alters the physiological problem. The uric acid, or rather a portion of it, no longer circulates as the more soluble and presumably easily secreted quadri-urate, but as bi- urate, which is less soluble, and probably also less easy of removal by the kidneys."-{The Lancet, July 9, 1892.) Pathology and Pathological Anatomy.-Assuming the correctness of the claim that sodium bi-urate constitutes the direct cause or disturbing element on which the vari- ous symptoms and forms of gout depend, w'hat are the pathological processes and changes induced by its pres- ence in the fluids of the body ? It has been shown, both by experimental research and clinical observation, that the soluble quadri-urate naturally existing in the blood- serum and tissue fluids is readily changed into a less soluble bi-urate by failure of the kidneys to eliminate it, or by whatever will lessen the alkalinity of the blood- serum (Roberts), and by such food and drinks as either contain an excess of acid material, or give rise to acid fermentation in the digestive organs (A. Haig), thereby favoring the precipitation of such less soluble bi-urate in the tissues which are most favorable for its accumula- tion. That such precipitation does take place in all the more active forms of gout is readily demonstrable by both chemical and microscopic detection of its presence in the synovial and tissue fluids of the articulations af- fected, in addition to the well-known fact that it is the chief constituent of the tophi or gouty concretions found in the more chronic cases. According to Sir William Roberts, the precipitated bi-urate is always found in crystalline form, and is "distributed through the im- plicated tissue in the form of delicate needles aggregated in tufts, bundles, and stars." And he adds: "The ar- thritic incidents of gout may be said, not improperly, to be simply incidents pertaining to the precipitation of these crystals in the structures of the joints. Without the occurrence of this precipitation the gouty paroxysm could not take place, nor could the more chronic changes in the joints, with their train of attendant symptoms, follow after." From this we must infer that the offend- ing bi-urate produces its effects by a primary irritating action, either upon the nervous structures or the fibrous tissues, or by mechanically obstructing the capillary ves- sels ; or, perhaps, by all these modes simultaneously. When the quantity of bi-urate present is small and the precipitation slight, the chief symptoms are those of a neuralgic and erratic character without local tume- faction or febrile disturbance. If, however, its forma- tion takes place more rapidly and it accumulates in greater excess, the precipitated crystals appear to pene- trate all the tissues of the part involved, and to cause rapid tumefaction, intense pain, and general fever. In other words, it excites a true inflammation of all the structures permeated by its crystals. And if they are not subsequently redissolved, they become permanent obstructions inducing all the phenomena and changes in- cident to chronic gout. While the majority of investi- gators, including Garrod, Granville, Haig, and Roberts, regard the inflammation and other gouty symptoms as the result of the urate precipitation in the part, Dr. W. Ebstein claims to have traced, by numerous experiments and dissections, evidences of the direct irritative action of the sodium urate, both in the kidneys and other internal organs, and in the articular cartilages, fibrous structures, and the connective tissue between the muscles, thereby claiming to have proved the diffused primary action of the irritant conveyed in the blood before actual crystalline precipitation occurred. Consequently he regards the first stage of the disease as " an inflammatory process, set up by the uric acid, leading to foci of necrosis, and then deposits of urates in the cavities thus formed." He fur- ther endeavors to show that inflammatory necrosis in any tissue causes an acid reaction in the part, which acidity in turn determines the precipitation of urates in the necrotic foci. The order of development of the pathological processes described by Ebstein necessitates a distinct stage of in- flammation, or at least tissue poisoning, with its accom- panying tumefaction and pain, before the precipitation of urates can take place, while careful and multiplied clin- ical observations seem to demonstrate the presence of the precipitated urate coincidently with the first manifestation of local symptoms. It appears, therefore, more correct to regard the necrotic foci described by him as resulting from the obstruction and irritation of the crystalline pre- cipitate, instead of the latter resulting from the former. The more remote and full development of tissue changes induced by repeated attacks of gout are well set forth in the following account of a post-mortem examination by Hudelo, presented to the Anatomical Society of Paris {Annual of Universal Medical Sciences, vol. i., 1889), the subject having died from gout in the Hopital de la Pitie, in the service of Troisier: "In the upper extremities tophi existed in the right hand at the base of the meta- carpo-phalangic articulations of the index, medius, and ring fingers, and also at the base of the articulations of the second and third phalanges of the index and medius, and at the base of the thenar eminence. An incision through .the integument near the thenar eminence ex- posed a soft, pulpy substance infiltrating between the muscles, and at the level of the fingers it filled the sheaths of the tendons without communicating with the articula- tions. By extending the incisions the uratic infiltration was found in the tendon sheaths of the palm of the hand. The articular cartilages of the phalanges and the meta- carpal phalanges were covered with a whitish layer of urates. The periarticular bony contour was uneven, ragged, and in places presented osteophytic projections. The lesions were greatest at the base of "the radio-carpal articulation. At the right elbow a subcutaneous tophus of the size of a hen's egg filled the olecranon pocket. The elbow-joint was filled with a mixture of synovia and urates. The hand, wrist, and elbow of the left extremity presented pathological and anatomical changes very simi- lar to those described in the right. In the lower extrem- ities the phalangic, metatarso-phalangic articulations of the tarsus and metatarsus of both feet were affected in the same manner as the corresponding parts of the upper extremities, the uratic infiltrations being most prominent in the articulations of the great toe. Both knee-joints were filled with the uratic deposit; the articular surfaces of both tibia and femur were diseased, their contour rough and irregular, with large osteophytes attached to the femurs. The surfaces of the patellas were also rough with osteophytic projections. The organs in the cranium and thorax were natural except the heart, which was large, its walls pale and thin, with dilated cavities, but without valvular deposits. Of the viscera of the ab- domen, the liver was harder and more granular than natural, the pancreas contained a whitish substance re- 383 Gout. Gout. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. sembling the uratic infiltration, but not crystalline, and the kidneys were enveloped in an excess of fatty tissue, notably diminished in volume, the capsules easily removed, leav- ing the surface uneven, but with no appearance of cysts. Incisions showed marked atrophy of the parenchyma in- closing some fatty tissue. In the centre of the papilla was a series of whitish layers parallel to the collected tubes of the pyramids, but not extending more than six or seven millimetres into the parenchyma." It is thus seen that while the characteristic deposits and structural changes are most abundant in the less vascular structures entering into the articulations of the extremities, they may be found in less degree in nearly all the tissues and organs of the body. The deposits are always in the crys- talline form, and composed almost exclusively of sodium bi-urate. Of the internal viscera, the kidneys suffer most, particularly from chronic interstitial nephritis char- acterized by the existence of an increased amount of in- terstitial connective tissue, with a corresponding atrophy of the secreting cells, thereby rendering the organs progressively less efficient in the performance of their natural function. The changes in the fluids of the body during the ex- istence of gout, are most noticeable in the blood, synovia, and urine ; and chiefly consist of an increase of uric acid in the form of sodium bi-urate, instead of the natural so- dium quadri-urate, as more recently determined by Sir William Roberts. Dr. Garrod has shown that an appre- ciable quantity of uric acid is pretty uniformly present in the blood-serum of chronic cases of gout. And Cam- merer (see Deutsch. Medicin. Wochenschrift, March 5,12, 1891) states that while the amount of uric acid in healthy blood is only 2.8 to 100 of urea, in those affected with gout it averages 3.1 to 100 of urea. M. Molliere, in a communication to the Lyons Medical Society in 1888, not only recognizes the increase of uric acid or urates in the blood in gout, but claims that it is antagonistic to both pyogenic micro-organisms and the bacillus tubercu- losis ; and alleges this as the reason why the gouty are so generally exempt from tuberculous disease. In most cases the haemoglobin and red corpuscles are diminished. The synovia in affected articulations is often found turbid from the presence of urates. The quantity of uric acid excreted in the healthy urine, in twenty-four hours, is about 0.5 gramme (grs. viij.), the greater part in combination with sodium. It has been shown by many investigators that for a day or two pre- ceding, and at the commencement of, acute attacks of gout the urine is less acid and contains less urates than in health, but subsequently they appear in excess, especially at the crisis of the disease. Dr. A. Haig suggests that the diminished excretion of the urates at the commence- ment of acute attacks is owing to the fact that they are then being stored or precipitated in the tissues. Such diminished excretion, extending even to a few days prior to the attack, may be further explained if we regard the views of Sir William Roberts as correct, when he states that the uric acid in healthy urine exists and is excreted in the form of soluble sodium quadri-urate, while in gout it has been changed to an insoluble bi-urate, and instead of continuing to be excreted, it is first retained and then precipitated in the tissues, and can only reap- pear abundantly in the urine after resolution, during the middle and advanced stages of the disease. To further emphasize this order of development, the same active in- vestigator has designated the preliminary stage, while the quadri-urate is being changed into bi-urate in the blood- serum, synovia, etc., as the condition of lithamia, and the succeeding precipitation into the tissues as teratosis. Emil Pfeiffer, in a communication to the Seventh Congress of German Physicians, at Wiesbaden, 1888, claimed to have demonstrated that the uric acid in the urine of those affected with gout, even in the more chronic and latent conditions, could be separated in larger quantity by a certain process, while urine from non-gouty subjects did not yield any such increase: which, if true, would afford a valuable means of diag- nosis, especially in the more obscure cases. His method consisted in obtaining all the urine passed in twenty-four (SUPPLEMENT.) hours, filtering it through paper and dividing it into two parts. One of the parts was again passed through a filter on which had been placed some chemically pure uric acid. The other part was not so treated. One hundred cubic centimetres from each of these parts were taken into separate vessels and acidulated with strong hydrochloric acid, and allowed to rest until the precipitated uric acid had completely separated. Then both precipitates were collected on previously weighed filters, washed with distilled water, dried, and weighed. If the urine had been passed by a person not affected with gout or urolitheemia, the two filters con- taining the dried products would show the same amount of uric acid ; but if passed by a person affected by any stage of gout, the specimen that had been treated with the pure uric acid would show a notable increase of the dried product. Sir William Roberts subsequently repeated the experiments of Pfeiffer, and came to the conclusion that the test proposed was entirely unre- liable. To this Pfeiffer has replied that the experi- ments of Roberts having been made with the urine of healthy persons, the results were not applicable, as the sole basis of his test was on the greater readiness of the urine of persons subject to gout to part with its uric acid. And as proof of such greater readiness of separa- tion he alleges that, while from one hundred cubic centi- metres of the urine of healthy persons the uric acid is only extracted by 2.0 or 3.0 grammes (30 to 40 grains) of uric acid, from the urine of gouty persons it is with- drawn by 0.2 or 0.5 gramme (3 to 8 grains). In this connection it is proper to state that Dr. C. J. Rademacher (see American Practitioner and Neus, Louisville, Ky., June 21, 1890) claims to have discovered a new acid in the urine of persons suffering from an attack of gout, which is precipitated almost immediately after having been voided, and which he regards as the direct exciting cause of the disease. He says, " this acid is only found in the urine during an attack of gout, and always in a free or uncombined state, while the uric acid remains in the urine as a urate and in solution." His method of obtaining his new substance in separate form is as follows : " The precipitate in the urine was collected in a filter and washed with distilled water. It was then transferred to a beaker and neutralized with a dilute solution of caustic soda, and filtered through ani- mal charcoal. The filtrate was treated with pure dilute hydrochloric acid, the precipitated acid again washed with distilled water, redissolved in a solution of caustic soda, and again precipitated with pure dilute hydro- chloric acid, washed and dried. This acid, prepared by the above process, is a white crystalline powder but spar- ingly soluble in water. Its aqueous solution has a de- cided acid reaction to litmus (which uric acid has not); its formula, from ultimate analysis, is C6HBO4N4, its molecular weight 200, and it contains 28.28 per cent, of nitrogen." The value or correctness of the claim by Dr. Rademacher remains to be tested by further investi- gation. Dr. Edward Grim, in The Lancet, London, January 23, 1892, makes the statement that " in three consecu- tive cases of acute gout he found the blood to be swarm- ing with a long encapsuled bacillus, side by side with which numerous crystals of bi-urate of soda are to be seen," and promises more information in a future com- munication. Treatment.-If the views presented in the preceding pages concerning the etiology and pathology of gout are correct, the objects to be accomplished by its treatment are easily inferred and capable of being clearly stated in few words. The first object is to prevent the accumulation or reten- tion of an excess of the normal sodium quadri-urate in the blood or tissue fluids long enough to favor its con- version into the less soluble sodium bi-urate, and thereby prevent the formation of the essential cause of the dis- ease. The second object is to render the sodium bi-urate already formed in the blood and tissues more soluble and, consequently, more easy of elimination. The first object is essentially prophylactic or preventive, and the 384 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Gout. Gout, (SUPPLEMENT.) and clinical investigations, that it is not necessary to ad- duce the proofs here. Neither is it important to enter upon the inquiry whether one kind of alcoholic drink is more injurious than another. All admit that the use of beers and wines is practically more efficient in producing and perpetu- ating gout than the use of distilled spirits, and for two obvious reasons: First, those who use chiefly the fer- mented drinks, use them more uniformly from day to day, and in much greater bulk; second, they take with them a greater amount of acids, sugar, and imperfectly fermented materials that directly encourage gastric, he- patic, and renal disorders. It is true, as so fully stated by Dr. A. Haig and others, that the use of food or drink containing free acids, sugar, and other readily ferment- able materials, even without any alcohol, by persons al- ready possessed of a strong gouty diathesis, either he- reditary or acquired, may be sufficient to provoke a more acute attack. But, as already stated under the head of ^Etiology, there is no proof that the use of any kind or amount of free acids, saccharine matter, or nitrogenous food will produce an acute attack of gout de novo, or develop the characteristic gouty diathesis without the co- incident use of alcohol in some form. It is proper to insist, therefore, that entire abstinence from alcoholic drinks is necessary, both for effectually preventing the primary development of gout and for overcoming the diathesis when previously established. The medical treatment of gout in all its aspects should be directed for the accomplishment of three objects : first, to render the retained sodium urates more soluble; second, to hasten their elimination ; and, third, to lessen the patient's pain and suffering while the two preceding objects are being accomplished. For many years past there has existed a very general, belief that certain natural saline or mineral waters, used' freely for both drinking and bathing, ■were among the most efficient remedies for promoting the solubility of the urates concerned in the production of gout. Conse- quently several natural springs, both in this country and Europe, have become popular places of resort for the gouty invalid, and saline waters, artificial as well as nat- ural, have been much prescribed by members of the pro- fession. Some, however, who have had ample opportunities for observation, deny their efficiency entirely, and attribute the improvements that patients frequently experience while attending at some of the most noted places of re- sort, to the change of air, diet, exercise, and rest from their usual occupations. Sir Mortimer Granville insists that the use of the same quantity of pure water is more ef- ficacious as a solvent of urates than any water containing the salts of sodium, potassium, magnesia, or lithium. The correctness of his position is fully demonstrated by the results of an extensive series of experiments illustrat- ing the chemistry and therapeutics of uric acid gravel and gout, by Sir William Roberts, as stated in his third Croonian lecture before the Royal College of Physicians of London. 1892, to which reference has previously been made. It is shown in the lecture that distilled water at the temperature of 100° F. will hold in solution 1 part of sodium bi-urate to 1,000 of the water, while water at the same temperature, holding in solution 0.50 percent, of sodium chloride, and 0.20 per cent, of sodium bicarbonate -being about the same proportion naturally existing in blood-serum and synovia-would hold in solution less than 1 part of sodium bi-urate to 10,000 parts of the water. The experiments were so varied as to clearly demonstrate the fact that, the more salts having for their base sodium, potassium, magnesium, or lithium were contained in water at a given temperature, the less sodium bi-urate would be dissolved or retained in solution. And the result was the same whether the saline solutions yielded an acid or alka- line reaction with litmus. Similar experiments per- formed with the natural blood-serum and synovia led to exactly the same results. The important practical infer- ence is, that the same liberal use of pure water, both for drinking asd bathing, as is now made of the most popular mineral waters, would be productive of much means for its accomplishment are almost exclusively hygienic in their character ; while the second is directly curative or to relieve existing attacks, and the means for its accomplishment include the administration of such remedial agents as will increase the solubility of the bi- urate and facilitate its elimination through the natural channels, and such as may lessen its irritative action on the nervous and fibrous structures of the body. Few things within the domain of both clinical and social ob- servation are better established than the fact that individ- uals and whole communities who have been trained from childhood to a fair amount of out-door muscular exer- cise, to the use of a fair variety of vegetable and animal food, and to total abstinence from alcoholic drinks, both fermented and distilled, are absolutely exempt from at- tacks of any form of gout. The only apparent excep- tions to this rule are found in such individuals as have inherited a very strong predisposition from their parents. Such individuals, though habitually living within the hygienic conditions just stated, may be found to suffer occasionally with some form of neuralgic gout, but the number is very small. The facts presented by Dr. A. Haig in his inaugural thesis, as well as those presented by many other writers, seem to show conclusively that a diet largely of animal food is accompanied by the excretion in the urine of less uric acid and urea than a diet chiefly of vegetables. Con- sequently the former is supposed to encourage the reten- tion and storage in the tissues of the sodium urates, while the latter promotes their elimination, and has been generally regarded as more efficient in preventing their retention in such quantity as to endanger an attack of the disease. A careful study of such results of investi- gations and clinical observations as are on record seems to show that it is not profitable to attempt to adopt an arbi- trary rule regarding the quantity, or quality of food, at least so far as it relates to its nitrogenous or non-nitro- genous character. The most important requisite is that the food shall be such as the individual eating it can most perfectly digest and assimilate without being accompanied with gaseous or acid fermentations, and yet will contain all the ele- ments necessary for the repair of the solids and fluids of the body. That a mixed diet, composed of a reasonable proportion of meats, vegetables, and fruits, and taken not more frequently than three times in twenty-four hours, is that best adapted to promote the health and longevity of the human race, admits of little or no doubt. The relative proportion of the three kinds of food, and the gross quantity to be taken, must be adjusted to the needs and capacities of each individual. And even when the food is thus adjusted, still another condition is neces' sary for its assimilation and normal uses in the living system, namely, the reception of the proper quantity of pure air, and the active distribution of its oxygen from the pulmonary to the systemic capillaries. Without this neither the metabolic processes concerned in diges- tion and nutrition, nor those of tissue metamorphosis and excretion, can be maintained in a strictly natural condition. Consequently, constant access to fresh air and daily muscular exercise, not merely of the back and lower ex- tremities, as in walking, but also of the chest and arms, by which fulness of respiration and freedom of pul- monary circulation are secured, are among the most effi- cient means for rendering the internal oxidation pro- cesses concerned in retrograde tissue metamorphosis complete, and thereby preventing the accumulation of an excess of sodium urates in the blood or tissues. In addition to the proper regulation of the food, air, and exercise, still another hygienic condition is necessary to render the development of gout practically impossible, namely, the total abstinence,from alcoholic drinks. The fact that the presence of alcohol in the blood so modifies the haemoglobin as to diminish its internal distribution of oxygen and retard tissue metabolism, and so modifies the secreting functions of both liver and kidneys as to strong- ly favor the formation and retention of sodium urates in the system, is so fully established, both by experimental 385 Gout. Guaiacol. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) greater benefit, especially to all invalids of the gouty class. For the speedy relief of paroxysms of acute gout col- chicum has long sustained a high reputation. It should be given in as large doses as the stomach and bowels will tolerate, and repeated at intervals of from one to three hours until the pain and active symptoms begin to abate, when the doses may be diminished gradually, and finally withdrawn as soon as the relief is complete. If it acts too quickly on the bowels, as is sometimes the case, ten or fifteen minims of the acetated tincture of opium may be added to each dose. On the other hand, if the attack has been preceded by constipation, coated tongue, and scanty urine, from five to ten grains (0.31 to 0.61 gramme) of calomel may be given at once with benefit to the pa- tient, As soon as acute symptoms have disappeared the further management of the case should be in accordance with the hygienic principles already stated for the re- moval of the gouty diathesis and the prevention of acute relapses, and only such medicines should be continued as may be necessary to maintain a healthy condition of the digestive and urinary organs. Dr. W. Ebstein, in treat- ing acute symptoms gives, instead of colchicum, lithium salicylate in doses of 0.66 to 1.00 gramme (grs. x. to xv.), every two or three hours, until relief is obtained. Sir Mortimer Granville gives preference to the use of iodine, either in the form of tincture, iodoform, di-iodo-hydri- odide of caffeine, or hydriodic acid, and claims that it unites with the sodium of the bi-urate and facilitates its elimination from the system. But he very properly says, it should not be administered in combination with sodium or potassium. Dr. C. J. Rademacher declares that a combination of colchicia, decandria, and solanin with iodine, constitutes a reliable specific remedy for gout. The most recent remedy that has been highly recom- mended is piperazine. Dr. Schweninger, of Germany, is represented as having obtained most excellent re- sults from its use in both acute and chronic cases (see Journal of American Medical Association, September 24, 1892). Drs. Biesenthal and Schmidt (La Semaine Medi- cale, No. 4. 1892) bear equally strong testimony as to its efficacy. It should be taken in dilute solution in pure water. One gramme (gr. xv.) may be dissolved in three hundred grammes (1 pint) of water, and the whole drunk during the twenty-four hours. At the beginning of acute cases, a larger quantity may be taken during the first day, but subsequently it should be continued for a considerable time in nearly uniform moderate doses, as its chief efficacy is supposed to consist in its power to increase the solubility and elimination of the sodium urates, and thereby counteract the tendency of the dis- ease to continue in a chronic form, and to develop per- manent arthritic uratic concretions. Dr. Thomas A. Edison has reported a case of such chronic concretions successfully treated by electricity ; while Dr. A. D. Rockwell reports one or more cases in which.the use of electricity only hastened the dissolution of the tissues covering the concretions, instead of dimin- ishing the latter. He Jias found electricity beneficial only in the chronic nervous manifestations of the disease. Nathan S. Davis. GRANVILLE. A sea-bathing resort on the coast of Nor- mandy, and facing the shore of Brittany. It is a pictur- esque settlement, and, like many of the sea-side resorts in France, is divided into an upper new town and a lower old one. The principal hotels are the Grand, Hotel du Nord, V Hotel des Trois Couronnes, V Hotel de France, V Hotel de Paris, VHotel du Soleil, and I'Hotel de la Boule-d'Or, all of which are in the Rue Lecampion, and almost all of which have the same tariff of prices-viz., from 7 fr. to 8 fr. a day. The Casino of Granville is called La Cabane, and is a pretty, unpretentious little building in wood, on a terrace at the base of a high cliff. The beach, which lies immediately below this ten-ace, is of fine white sand, and terminates on the town side by a high, sombre-colored and picturesquely jagged cliff (Baughan, " The North- ern Watering Places of France "). Steamboats ply between Granville and the Island of Jersey. Season, June to September. There are many fine walks and drives at and near Granville. The place is French, rather than international. Edmund C. Wendt. GRASSE. A winter health-resort on the Riviera, which has recently been made popular by the sojourn there of the Queen of England. The writer, after a per- sonal inspection of the place, described it about as fol- lows in the Medical liecord of May 28, 1892 : Grasse is picturesquely perched on the southern slope of Mount Rocavignon, which rises some seven hundred feet above it. It is twelve miles by rail in a northerly direc- tion from Cannes. The inhabitants, to the number of some fourteen thousand five hundred, are chiefly given over to the production of perfumery. Rose, cassia, heliotrope, violets, jasmine, verbena, jonquil, tuberose, orange, mignonette, and other blossoms are made use of in vast quantities for the purposes of this industry. Grasse gets plenty of sunshine, but being inland and about twelve hundred feet above the level of the sea, its climate is tonic and soothing, rather than stimulating and exciting. It is a little colder than the Mediterranean coast places, but the rise and fall of the thermometer is less abrupt. It enjoys a more equable temperature than do some of .the better known and more fashionable re- sorts of the Riviera. Grasse faces the sea, and enjoys a charming view over the lowlands running down to Cannes. Spurs of the Esterel Mountains extend to the north- west, and in a northeasterly direction there rise the peaks of the Maritime Alps. The dust and mistral are less trying at Grasse than at neighboring winter stations, though the mountains back of the village fail to give it that complete protection which has been claimed for it. It will nevertheless be seen that Grasse possesses certain advantages that entitle it to be more patronized than it has been, at least by real invalids. Not much has been done in the way of recent sanitary improvements. But the cesspool system is always less objectionable in small villages than in large settlements, where human beings are herded together in close quar- ters. The Grasse drinking-water, while not absolutely irre- proachable, comes from two good sources. It is con- ducted in canals, one of which is covered. It is safer to boil it before drinking, but it is less calcareous than much of the Riviera water. The two sources are known as La Foux and Le Foulon, and the supply is more than abundant. From the excellent little guide to Grasse, pub- lished by " An English Resident," the following table is taken : Analysis of Grasse Drinking-water,-One litre of water taken at the sources contains : Foux. Foulon. Degree hydrometric 18.2 c.c. 18 c.c. Organic matters calculated as oxygen from ]>ermangnnate of potash 7.2 mg. 0.48 mg. Chlorides traces traces Nitrites and nitrates nil very slight traces Combined ammonia and albuminoids.... 0.2 mg. 0.003 mg. Oxygenation 8.5 c.c. 8.22 c.c. The Grand Hotel has been quite recently put in good sanitary condition by Mr. Best, of London. Board and lodging are cheaper in Grasse than at the more favored resorts. Many interesting walks and excursions offer themselves to the tourist. But apart from that there is very little "going on." It may be for this reason, perhaps, that so few Americans spend the winter at Grasse. Invalids who do not prosper at the sea-side will do well to try the inland air of Gn\sse ; and for some cases of nervous break-down the very dulness of the place should be a strong recommendation. Cases of chronic laryngitis, pharyngitis, chlorosis, anae- mia, and early cases of phthisis generally do very well at Grasse. Asthmatics and gouty patients are also benefited there. Edmund C. Wendt. 386 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Gout. Guaiacol, GROUND ITCH. A disease so often met with de- serves, at least, to be described and named. We can find no reference to it in the workmen practice, on skin diseases, in encyclopaedic handbooks, or the "Index Catalogue" of the Surgeon-General's Office ; yet there is scarcely a boy raised in the coast districts of South Carolina who has not been a sufferer from this affection. As it involves invariably one or more of the toes, sel- dom extending beyond them, and possesses the charac- teristics of eczema, there need be no difficulty in giving it its correct scientific designation. We would suggest the compound name, Eczema phalangis pedis. Cause.-It is generally found in those going without shoes, and is popularly ascribed to walking barefoot in the sand, dew, and wet grass, and therefore generally affects boys. It is met with extensively along the seaboard, in the Pineland residences, and elsewhere, also on Sullivan's, Pawley's, and other islands ; and in these localities are found certain grasses armed with spines or prickles, which are highly irritating, though no complaints are made of them. "^Those of cleanly habits are not exempt from the disease. Symptoms.-There may be at first moderate redness or subacute inflammation, followed by papules or vesicles which burst. This is accompanied by intense itching and burning, only partially relieved by scratching ; the re- sult being a sore with whitish ulceration around and be- tween the toes, with a moisture characteristic of eczema. There is no rash, fever, or chill; no extreme swelling or sloughing. It is analogous with an affection known as "stone bruise," quite common in the upper and more rocky dis- tricts. The disease we are describing is neither camp nor prairie itch, nor is it embraced under any of their syno- nyms, which are all contagious and generalized over the whole surface of the body, whereas ground itch is strictly localized and never contagious. A correspondent who is a high authority on dermatol- ogy suggests that " it is possible that it may be due to the attack of the pulex penetrans (sand-flea or jigger). This attacks the neighborhood of the toes, but is not commonly met with outside of tropical countries, although it has been reported from time to time as met with in the Southern States. Even though it be an eczema, it must, from your note, have peculiar features." We are inclined to dissent from this opinion, though we have heard the affection ascribed to some minute insect. Were the pulex the cause, it would be more readily rec- ognized, for the female, which is generally regarded as a true flea, penetrates the thin skin between the toes or about the toe-nails, and then swells up to the size of a flea, forming a bag of eggs, and this becomes plainly vis- ible. This causes much irritation, which often results in suppuration, followed by open ulcers. Treatment.-There are many popular remedies, as, for example, bread-and-milk poultices in the early stages ; soaking the feet in hot water is said to arrest the disease ; applications of the leaves of the gourd or calabash (Cu- curbita lagenaria) heated ; a hot decoction of the yellow gerardia (Gerardia flavd), which grows abundantly here and is considered a sovereign remedy. We have experi- enced good results from the application of a powder of aristol, bismuth, and oxide of zinc, equal parts. A com- bination of campho-phenique and oil or vaseline, equal parts, also gives great relief, and we have seen benefit fol- low the application of an ointment given us by the late Dr. Valentine Mott, of New York, for eczematous affec- tions, viz.: I). White precipitate of mercury 3 j. Oil of tobacco gtt. x. Lard | j. Iodoform in the moist stage is a useful application ; and a strong solution of soda, frequently applied, re- lieves the itching temporarily. When the suppuration is subsiding any drying powder, (SUPPLEMENT.) such as calamine, subnitrate of bismuth, oxide of zinc, or powdered cinchona bark, will prove useful. A med- ical friend finds equal parts of ichthyol and vaseline the most efficient remedy. Carbolic acid is sometimes em- ployed as an ointment, with lard or vaseline. The disease is often very refractory, the itching and burning being very severe. A patient, under constant supervision, is now in the sixth week of the disease. F. Peyre Porcher. GUAIACOL. This compound constitutes from sixty to ninety per cent, of creasote, and may be separated by fractional distillation; the portion passing over between 200° and 205° C. being collected. Chemically it is mono- methyl pyrocatechin, with the formula of C6H4OHOCH3. It is a colorless liquid with a strong, aromatic odor, very slightly soluble in water, 1 part in 85, but readily soluble in alcohol and ether. Specific gravity at 60° F., 1.117 ; boiling-point, 200° to 202° C. Guaiacol may also be formed from guaiacum resin by distillation. Many of the guaiacols of commerce are contaminated with various impurities, which give it a lower specific gravity and boiling-point ; they are darker in color, and spoil by ex- posure to light. With concentrated sulphuric acid the pure guaiacol gives a faint yellow coloration, which is changed to a yellow red by the addition of a small quantity of acetone ; the impure guaiacol gives a more or less red color with the acid alone. A characteristic test for guaia- col is the addition of a trace of ferric chloride to an alcoholic solution : this gives a blue color which changes to green with the presence of a greater proportion of the salt. Guaiacol is excreted with the urine, the saliva, and the perspiration, and may be detected as early as half an hour after its administration. It may be demonstrated by distilling the secretion with diluted sulphuric acid. The product is placed in a test-tube and to it is added a small quantity of highly dilute solution of liquor ferri sesqui- chlor. (two or three drops to a test-tube of water). In the presence of guaiacol a reddish-brown color is grad- ually developed, the intensity of which is in proportion to the amount present. The value of guaiacol in the treatment of tubercular disease was pointed out by Professor Max Schueller, of Berlin, in a work published in 1880.1 The author had made numerous trials, with various drugs, upon animals affected with tuberculosis. Extract of guaiacum wood, guaiacol, creasote, benzoate of sodium, and many other substances had been experimented with, and he had se- lected guaiacol as the most serviceable. In 1891 a second treatise was issued,'2 reviewing his work during the inter- vening years and explaining in detail his method of em- ploying the drug in general and in surgical tuberculosis. Dr. Schueller administers it continuously for a long period in moderate doses ; he does not think large doses are of any special value. An improvement shows itself quickly, but the remedy must be continued throughout the course of the disease, and when recovery takes place its use must be persisted in for some time longer. He particularly insists upon it being given for some months, after the bacilli have disappeared. He has recorded eighteen cures of pulmonary tuberculosis ; some of the patients have been free from symptoms of returning dis- ease after several years have elapsed. In pulmonary tuberculosis he gives it in doses of two or three drops to children, and three to five drops to adults, four times daily. He gives the drug without any preparation, in a glass of water, to which a little table salt has been added to facilitate solution and cover the taste ; or it may be given in milk, wine, or spirits. He does not like the use of pills or capsules. This method, he thinks, allows it to be present in the stomach in a too concentrated state, but where such are given, large quan- tities of water should be used before and after to facilitate solution and dilution. Guaiacol is well borne by the stomach, and its disagreeable odor and taste are soon overcome to such an extent that patients rarely com- plain. Dr. Schueller has also used it extensively in surgical tu- berculosis with equally satisfactory results. It is admin- tions, viz.: 387 Guaiacol. Headache. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. istered internally as in pulmonary disease, and injected into the site of the local trouble. He also uses the guaia- col in combination with iodoform for the local treatment. Enlarged glands, tubercular deposits, and skin affections in which caseation has not commenced, he has seen dis- appear with simply the constitutional treatment, and many threatened joint affections have been averted. In tubercular disease of the bones, when caseation and de- struction have taken place, he considers that the diseased tissue should be removed, and the local use of guaiacol and iodoform then proceeded with to promote repair and prevent the return of the disease. Guaiacol has been very extensively used as a substitute for creasote, and has been found to be easily taken and re- tained. It is also of a more definite strength than crea- sote, and free from any deleterious effects. The dosage varies, and many follow the method of Sommerbrodt with creasote, in giving large doses and pushing it with the idea of saturating the system. It is generally given in solution in preference to other ways, and tincture of gentian, tincture of cinchona, and wine, are favorite men- strua with which it may be combined, to disguise its taste and increase its tonic action. If for any reason it cannot be administered in the ordinary way, it may be given in the form of an enema, and for this purpose the follow- ing formula may be adopted : Guaiacol, 7 grains ; sweet almond oil, drachm ; gum acacia, f drachm ; distilled water, | pint. Iodoform in combination with guaiacol, as an improve- ment upon the latter alone, was introduced by Professor Picot, of Bordeaux.3 A solution of the two drugs in ster- ilized olive oil is prepared and used subcutaneously. The dose he advocated was very small, viz., one-sixth grain of iodoform and one grain of guaiacol, daily, to be increased gradually until three times that amount is reached. lie selected the supra-spinous fossa as the most suitable place for the injection, as it does not bear the weight of the body when the patient lies on his back. No local reaction followed its use, but from twenty to thirty minutes after the injection signs of a general reaction were evident ; there was profuse perspiration of the face and chest, which was followed by a lowering of temperature. The diges- tion was not affected, but in some cases colic and diarrhoea were complained of. No effect on the urine was noticed. Twenty.-five cases of tubercular phthisis and pleuritis were treated, and Professor Picot had never obtained such favorable results in any other line of treatment as he ob- served in these cases. He sums up as follows : The in- jections improve the general condition, and lessen cough and expectoration. In certain cases they dry up cavities and favor their cicatrization. In the second stage of phthisis they make cough and expectoration disappear, while causing the cessation of fever and night-sweats. They also diminish the number of bacilli in the sputum. Professor Picot, at a later date,4 reported the results of forty-two cases treated with the same satisfactory results, and without any unfavorable symptoms accompanying the injections. Dr. R. Robertson, at the British Medical Association, 1891,6 gave the result of his experience. He used it after the manner of Professor Picot. The small dose was commenced with, at the seventh day it was doubled, and at the twenty-first day the full quantity was begun. He employed the remedy in twenty-five cases of con- sumption and three of empyema. He concludes, 1, that in empyema with free drainage the treatment does good in improving the general condition and in dimin- ishing the discharge from the pleural cavity, but that without free drainage it is of uncertain value ; 2, that in pyrexic phthisis, whether the disease is small in extent or so extensive that the case seems almost hopeless, it is not an absolutely certain antipyretic, but it is commonly of decided advantage, if persevered with, in reducing the fever, and by so doing in diminishing the activity of the disease ; 3, that even where it fails within a reasonable time to modify the fever, it is still serviceable in most cases in diminishing expectoration and in modifying the cough ; 4, though it is serviceable in limiting waste by re- ducing temperature and by diminishing expectoration, (SUPPLEMENT.) it cannot be said that this treatment is specially favorable to increase in body weight; 5, the treatment is without risk with ordinary precautions ; 6, its use does not pre- vent the development of other tuberculous outbreaks or extensions of tuberculous mischief, for meningitis, pleu- risy, haemoptysis, have been shown to occur after many injections; 7, in interpreting the mode of action of these remedies, their antiparasitic action should not ex- clusively be thought of ; it must not be forgotten that both remedies act upon the patient himself, even in small doses, as a sedative, as a stimulant of the mucous mem- brane, and as an astringent. Benzosol.-A crystalline salt of guaiacol in which an hydrogen atom of the hydroxyl group is replaced by benzoyl. It is the benzoate of guaiacol. The chem- ical formula is C6H4OCH3OCOC6H5. It is a colorless crystalline powder, almost devoid of taste and odor, insoluble in water, readily soluble in alcohol, ether, and chloroform. It contains fifty-four per cent, of guaiacol. The boiling-point should not be below 44° C. Benzosol is acted upon by the alkaline secretions and gradually decomposed, guaiacol and benzoic acid being formed. It does not cause any irritation to the diges- tive tract nor give rise to eructations or any other disa- greeable symptom. Its advantage over guaiacol is the absence of any odor and taste. In addition to its use as a substitute for guaiacol in the treatment of phthisis, it is also recommended as an intestinal antiseptic where such is required. The dose is four grains, to be gradu- ally increased to twelve grains, three times daily. Guaiacol Carbonate was also introduced 6 because it afforded a better means of administering guaiacol than the employment of the parent liquid afforded. It has the advantage of being more definite in composition and perfectly free from any adulteration. Although termed a carbonate its formula is CO(OC6H4OCH3)2. It forms in neutral crystals, is tasteless and without odor, and is insoluble in water. Its melting-point is 86° to 90° C. It is not affected by the gastric juices, but in the alkaline secretions of the intestines it is decomposed and guaiacol set free. If the stomach is deranged and the seat of putrid fermentation, the decomposition of the salt will take place and produce its beneficial action. It is also used to re- place guaiacol and creasote in phthisis. The dose is six to eight grains, gradually increased, three times a day. As much as ninety grains have been given without pro- ducing disturbance of the digestive organs. Guaiacol Salicylate, also called guaiacolic salol. Its chemical formula is C6H4OHCOOCH4OCH3. It oc- curs in white, odorless crystals, with a melting-point of 65° C. It is insoluble in water. This compound is in- troduced for the same purpose as the above salt, and is also said to be much superior to salol for all purposes in which that salt is employed. The dose and modes of administering are the same as for salol. Beaumont Small. 1 ExperimentelJe und Histologische Untersuchungen, etc. Stuttgart: F. Enke, 188V. 2 Eine neue Behandlungsmethode der Tuberkulose, besonders chirur- gischen Tuberkulosen, von Professor Max Schueller. Wiesbaden: J. F. Bergmann, 1891. 3 La Semaine Medicale. March 4, 1891. 4 La Semaine Mfidicale, August 5, 1891. 5 British Medical Journal, November 14, 1891. 8 Berlin, klin. Wochen., 1891, No. 52. H7EM0GALL0L. A patented article prepared by the reducing action of pyrogallol on the coloring matter of the blood, It is a brownish-red powder, very soluble, and more readily absorbed than any other preparation of iron. It is very well borne by the most delicate stomach, and when absorbed is easily transformed into the blood coloring matter. The dose is from two to eight grains, three times a day. As much as fifteen to thirty grains have been given without any inconvenience. This compound was introduced by Professor Robert, Director of the Pharmacological Institute of Dorpat Uni- versity, as the result of a series of experiments upon the assimilation of iron salts, lie considers that ferruginous preparations, if they are of any value, should be excreted 388 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Guaiacol. Headache. with the urine, not immediately, but after the lapse of a few days, and should appear as a definitely formed urate of iron. None of the usual preparations of iron answer to these conditions. When introduced into the blood they are excreted to the extent of forty per cent, in an unchanged condition, which would indicate that the as- similation of these salts is very uncertain. The new preparation answers to all the above conditions, and clin- ical experience has shown the most favorable results, both in chlorosis and anaemia. Hoe mol is a similar preparation, obtained by using zinc-dust in the place of pyrogallol as the reducing agent. The dose is the same as that of haemogallol, the action is very similar, and the same favorable results have been obtained. This preparation contains a trace of zinc, which is considered a rather desirable combination, as it exerts a beneficial action where there are lesions of the stomach or intestines. Beaumont Small. HAND, DEFORMITIES OF. Athetosis.-No local treatment, either mechanical or operative, of the deform- ity associated with athetosis has given satisfactory re- sults. Relapses have invariably occurred after even pro- longed immobilization, and after section of the tendons deformity has soon recurred and become steadily worse. Only excision of the cerebral cortical centres, which, of course, paralyzes the part, affords any relief to the de- formity. Drop-wrist.-Very many cases of drop-wrist that obtain little, if any, benefit from other forms of treat- ment, go on to a partial, and not infrequently complete, cure when the nerve inflammation has subsided, by being persistently kept for a very long time in an over-corrected position. (SUPPLEMENT.) resorts, although the beach is remarkably fine. Accord- ing to Black ("Watering-places of England, Scotland, and Ireland") the "ridge of hills that runs through the centre of Sussex dividesat Hastings, as it approaches the sea, into several spurs, enclosing valleys, from within which begin the houses of Hastings and St. Leonard's, and extend to the beach, where they all join into one al- most continuous frontage of about two miles. This front- age begins at St. Leonard's on the west, with one range after another of fine mansions, till Hastings is reached. Along the whole of this front extends one almost un- broken promenade. Behind, at various distances, are the cliffs, which are much lower at St. Leonard's ; but from thence, gradually though irregularly, they increase in height till they attain the magnificent elevation, at or lit- tle beyond the eastern extremity of Hastings, of five hun- dred and sixty feet." The east winds are at times very trying, but in gen- eral the climate is mild and equable, and for this rea- son many consumptives spend the winter there. There is comparative absence of fogs, and the porous soil quick- ly absorbs moisture. The drainage and drinking-water are good. The sanitary condition of the towns is excel- lent, the annual death-rate being only about sixteen to seventeen per thousand. There is a large pier at Hast- ings, with conveniences for exercise under glass-covered promenades. According to Savery (" Hastings and St. Leonard's, their Meteorology and Climate"), the whole number of tine days is 189. They advance with great regularity from their minimum in January to their max- imum in July, and then as steadily decrease. The cloudy- fine days number 46 ; the cloudy, 52; the fine-rain, 42; and the cloudy-rain, 30.5 ; while the rainy days only amount to nine in the year. From this it is evident that the number of days on which the invalid can- not get out on account of the weather is very small; and those on which he may en joy the rays of the sun, so conducive to health and vigor, are 280. To these must be added 52, which are dry though overcast; hence there are 332 days in which a person may enjoy a walk. The regularity of these results, and the small amount of variation year after year, is very re- markable, and has much surprised him, as the fickleness of the weather in England has passed into a proverb. Dr. Mantell claims that it is not necessary for the invalid, however delicate, to be confined to the house for any length of time. Apart from Torquay, few English resorts are better adapted for an invalid's winter residence than Hastings and St. Leonard's. Many excursions can be conveniently undertaken from these resorts. There are the usual concerts^ assemblies, and other amusements. The hotels are good ; the Queen's on the Parade, facing the sea, the Albion, and the Castle are the best. At St. Leonard's, the Hoyal Victoria and South Saxon are the best. Edmund C. Wendt. HEADACHE. Since the appearance of the Reference Handbook very little has been added to our knowledge of the pathology of headache. There has been a good deal of speculation, and some ingenious theories have been suggested in explanation of some of the phenomena ; many facts have been observed and classifications made without giving grounds for much change of views as to the nature of the trouble. It is pleasant to note that so painstaking a student as C. L. Dana, after a thorough review of the whole subject, holds, with the original article on this subject, that we have no proof that headache may have its seat in the brain, although there is no proof that it may not. The cortex "may be the seat of headache, but then it is a psychical pain and in the nature of an hallucination." There can be no subjective difference between a genuine pain and one founded on an hallucination ; to the pa- tient they are identical. Most headaches are doubtless in the nature of neural- gias of the nerves of the dura mater or of the tissues cov- ering the skull. Of course this includes the tri-facial Fig. 210. Figs. 210 and 211.-Splint for Drop-wrist. Fig. 211. The hand is fully extended on the forearm and held by a simple metal splint applied to the palmar aspect, from the elbow to the carpo-phalangeal articulation. This position is maintained, without being even once relaxed, for from twelve to eighteen months. Structural short- ening, the result of the position, seems to take place in the extensor muscles, and even if voluntary motion in them is not regained, the deformity is cured, and the flexor muscles act io a greater advantage, while a more comely and useful hand is the result. Infantile Hemiplegia.-In some cases treatment is of no avail ; in others much restoration of function can be gained. If the deformity can be readily overcome, and the hand placed in the extreme opposite deformity without discomfort to the patient, it should be so placed and held by a suitable splint, without change of position, for from twelve .to eighteen months. This overcomes the shortening of the flexor muscles and permits the slack of the extensor to be taken up by structural short- ening. If the hand cannot be easily and comfortably placed in hyper-extension, division of all shortened tis- sues should be made, and the hand at once placed in the desired position and held there as already directed. A permanent gain in position may always be anticipated, and in a few cases there has been considerable restoration of voluntary movement. John Ridlon. HASTINGS AND ST. LEONARD'S. Popular sea-side resorts and winter stations in Sussex, England. Hastings and St. Leonard's are practically one. They are at present fashionable winter stations rather than summer 389 Headache. DEFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Heart. (SUPPLEMENT.) nerves, the upper cervical nerves, and some sensory branches of the vagus. The explanation of reflex headache has, like that of all reflex phenomena, been unsatisfactory. Why, for ex- ample, does an irritation of the stomach produce head- ache, instead of a pain in the foot ? Dr. Dana suggests the theory that the first irritation being received by the vagus and transmitted to the brain is easily " shunted off or^liffused " from the seat of original irritation to the nerves most obnoxious to pain. This theory is rational so far as it goes, but does not explain the special irrita- bility of the headache nerves. The explanation of migraine is still sought in the assumed discharge of nerve-force occurring periodically, a most unsatisfactory theory, but perhaps the best one at present. As illustrating the protean forms in which migraine appears, one author quotes ten cases-cases oc- curring at random-in which were represented the fol- lowing symptoms : Concentric retraction of the field of vision, aphasia, hemianopsia superior, numbness of one arm, vertigo, agraphia, scintillating scotoma, hemipare- sis, hemianaesthesia, difficulty of speech, amaurosis, and epileptiform convulsions. Dana classifies two hundred cases of non-migrainous headache, and attributes thirty-five per cent, to poisons and poverty of the blood, such as anaemia, dietetic states, infections, uraemia, lead, alcohol, tobacco, etc. ; twenty- five per cent, to reflexes from the digestive organs; ten per cent, to other reflexes ; five per cent, to local organic disease, and twenty per cent, to neurotic states. Much has been insisted of late on dull frontal and dif- fuse headache as resulting from catarrhal states of the upper part of the nasal passages, but I am satisfied that this is a much over-estimated cause. The character of the headache doubtless indicates to some degree the causation ; for example, the throbbing headache, aggravated by a jarring of the body, is more likely to be migraine, while the dull, steady pain is more likely to result from dyspeptic disturbance and toxaemia. The hot, burning, sore headache is often alleged to be due to anaemia, but frequently results from neurotic con- ditions incident thereto, and to uterine disorders. The intense, boring pain (clavus) is nearly always a hysterical symptom ; while the occipital pain is often caused by eye-strain. Weir Mitchell has wisely emphasized the fact that headaches probably often persist long after the causes of them, such as eye-strain, have been removed, as though from a habit of pain. They are more likely to persist when they have come on during the period of youth. Sunstroke leads often to persistent tendency to head- ache, always aggravated by heat, and especially by the sun's heat. There can be no doubt that in some of these cases, as well as in cases following injuries, spots of meningeal thickening occur which through pressure on nerve-fibres and abbreviation of the movements of the brain substance, as well as possibly by reflex action, lead to almost constant pain. Each year fresh evidence develops of the manifold headaches due to eye-strain from various optical defects of the organs of vision, the variations of hypermetropia and astigmatism being the most common. Defects of the extra-ocular muscles probably also cause headache. Ob- servers differ as to the proportion of cases due to these causes all the way from a modest figure up to seventy- five per cent, or more. A misleading circumstance is the fact that in some of the worst of such cases there are no ocular symptoms of pain or discomfort. Experience shows that oculists have not yet found the way to correct by glasses all cases of headache due to optical defects. Many cases must be tested repeatedly and experimented with in the use of various degrees of cor- rection before the right fit is found ; and sometimes the right fit is not found, suggesting that such cases are not due to the eyes. This conclusion is less tenable since numerous such cases have, by later1 methods and more careful testing, been entirely relieved. The claim has been lately put forth, and defended with zeal, that headaches, as well as other nervous troubles, including epilepsy, are often clue to inequality or asym- metry in tension of the extra-ocular muscles, for which graduated tenotomy is recommended. Many operations of the kind have been made, but the results have not been such as to commend either the theory or the remedy to the majority of students of the subject. That there is a measure of truth in the theory is probable, but its advo- cates have unquestionably claimed too much for it. Within a few years a remarkable series of coal-tar prod- ucts of the chemical laboratory have come into use in the treatment of headaches, as well as of neuralgias in general. Antipyrine has been used most extensively, while antifebrin, or acetanilid, and phenacetine, have been used very widely. Exalgine has been used to a limited extent. Various secret and proprietary prepara- tions, which are mostly compounds of some of these medicines with various modifying agents, have also been extensively employed. So common has the use of this new class of agents come to be in the United States, that many people purchase and use them on their own re- sponsibility as freely as quinine is used for so-called mal- aria. Notwithstanding the wholesale use of such medi- cines, very few unfortunate results have been recorded. Antipyrine is a fine crystalline white powder, highly soluble in water, while antifebrin is offered in coarser crystals, and is sparingly soluble in water ; phenacetine is similar in appearance, and is also sparingly soluble in water. These agents were first introduced as antipyretics, but were found to exercise a potent influence upon the ner- vous system, particularly in the presence of simple neu- ralgias, especially those that are produced by reflex in- fluences and aggravated by the lowering of vital tone. Antipyrine has been used in doses of two to twenty grains, and but few instances have been recorded of in- jury from this larger dose. Occasionally a large dose produces a sense of prostration, evidence of heart weak- ness or some skin eruption, but in general it may be said that in tentative quantities the drug is a safe one, even in the hands of the laity. The proper dose of antipyrine for headache in an adult is five grains, which may be repeated every half hour or hour until relief has been obtained, or until enough doses have been taken to prove that the drug is ineffective. People differ widely in their susceptibility to the reme- dial influence of the drug for headache, but most per- sons experience benefit from one to three doses of five grains each ; but some seem not to be affected by any safe quantity of the drug. Doubtless the cause of the headache determines to some degree the susceptibility to the remedy ; thu® true migraine headaches, produced by digestive derangement and fatigue of the eyes, are more likely to be benefited than headaches due to nephri- tis, anaemia, nervous exhaustion, and cerebral syphilis. One trial of the drug will nearly always determine for each patient its constant effect upon him. A headache relieved by a certain dosage for a particular patient may be expected thereafter to yield, to some degree, to the remedy, but migraine patients have found that they ac- quire a tolerance for the drug that makes it, after re- peated trials, ineffectual except in large quantities ; so that many, after a year's trial of it and more or less benefit, have rejected it as unsatisfactory. This has been, however, the experience of such patients with every drug known to affect the disease. Antipyrine seems specially applicable to cases of head- ache produced by gastric disturbance ; in many cases it corrects the stomach disorder as well as the headache ; and if taken at the first appearance of the premonitions of a migraine it may cut these symptoms short and pre- vent the appearance of the paroxysm. An effective and convenient way to administer the drug is by means of compressed tablets. Antifebrin should be given in smaller doses than anti- pyrine. It produces much the same effect, but is less soluble in the stomach, and, given in large quantities, as twenty or thirty grains within a few hours, it is liable to produce a cyanosis, due to an effect upon the superficial capillaries. This condition is known not to be specially 390 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Headache. Heart. dangerous, but is generally alarming to lay people who observe it. This drug has not given the satisfaction to patients with headache that has been experienced from antipyrine and phenacetin. Probably one explanation of this fact is the sparing solubility of the remedy. The drug is much more soluble in hot water than in cold, and may well be given in a hot solution where its prompt ac- tion is important. Phenacetin produces fewer unpleasant symptoms than antifebrin, is very popular with patients who have used it for headache and neuralgias, and may be given in about the same doses as antipyrine. It produces more perspiration in febrile cases than either of the other drugs named ; and in large doses may produce decided cyanosis. It is unwise, however, because of its sparing solubility, to give this drug in the shape of compressed tablets, if there is any considerable' catarrh of the stom- ach. I have known such tablets given in typhoid fever for headache to pass in large number through the ali- mentary canal undissolved. Just how these drugs act is something of a mystery. Antipyrine is believed by some to reduce intra-cranial blood-pressure, and that it should never be used when spasm of the blood-vessels exists-if it can be known certainly when that occurs, of which there is often some doubt. There is no reason to think that any of these new rem- edies induces a lessening of the tendency to regular re- currence of migraine paroxysms. Norman Bridge. HEART, THE. The vertebrate heart arises in tw'o dis- tinct ways, each of which is intimately associated with the origin of the blood-vessels in general. In the lower ver- tebrates its first appearance is in the form of a single tube on the ventral median line of the embryo, quite near the head. Fig. 212 is a section of a salamander embryo in which the heart is just beginning to form. The body cavity Ih is composed of two lateral halves (see Ccelom) separated from each other by a median septum. It is in this septum that the heart first makes its appearance. The two layers which contain this septum become sepa- hearts. Fig. 214 is a section through an embryo of the same stage as that pictured in Fig. 213. The neural canal, rf, is just beginning to close and in the splanchnopleur on either side there is a large fold, ahh. Fig. 213.-Rabbit Embryo of the Ninth Day. (After von Kolliker.) X 10 times, A, double origin of the tieart; nb. optic vesicle ; th, fore- brain ; mh, mid-brain; hh, hind-brain ; rf, medullary groove ; uw, myotomes ; h, heart; to, vena omphalo-mesenterica. which already contains the endothelial tube com- ing from the omphalo - mesenteric vein. The tubes grow toward the median lines, but before uniting each has its descending aorta, as shown in Fig. 215. The rudimentary hearts are formed between the splanchnopleur and entoderm, and as the former surrounds the heart to form its muscular layer the heart protrudes into the coe- lomic cavity (Fig. 214), much as does the unilat- eral heart of lower vertebrates (Fig. 212). Soon the two halves unite as indicated in Fig. 215, and then we have a single heart with two veins enter- ing from behind and two arteries, aortae, leaving from in front. Although this primary division has nothing whatever to do with the later sepa- ration of the heart into its two halves, yet before the two primary hearts are united into a single tube the position of the ventricle is already marked (Fig. 215, h). So, to sum up, in the lower verte- brates the heart appears as a single tube which in general remains such during the life of the animal, and it must be viewed as the prima- tive form of heart. Fig. 212-Section through a Salamander Embryo, to Show the Origin of the Heart. (From Hertwig, after Rabi.) d, yolk; vm, pericardium: M, body cavity; end, endocardium; p, muscle layer of the heart; ep, epidermis. rated, and the opening soon becomes lined with a layer of cells, end, the endocardium. The cells of the septum surrounding the opening give rise to the muscle-walls of the heart. In higher vertebrates the heart is first formed by the union of two tubes arising from what might practically be called the outside of the body. Fig. 213 is a sur- face view of quite a young rab- bit embryo in which the heart is beginning to form on either side. The omphalomesenteric veins on either side run toward the ventral median line, and later on unite. Their appearance is such, how- ever, that before they are united they may be spoken of as two Fig. 214.-Section through the Embryo Pictured in Fig. 213. 'After von Kolliker.) The bilateral hearts are cut transversely, rf, medullary groove; h, ectoderm: men. mesoderm; (id, entoderm; dd'. chorda : muscle-wall of the heart; ihh, endo- thelial lining of the heart. 391 Heart. Heart. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Higher up the scale the heart arises before the foregut is formed, from that portion of the splanchnopleur which later on lies in the median line of the embryo. It is this part which is to give rise to the heart, and in the higher its walls have also become thickened. Figs. 219 and 220 are ventral and lateral views of a reconstruction at this stage. The profile view again gives a cast of the heart cavity, which now shows the beginning of the auricle Fig. 215.-Sketches Showing the more Advanced Condition of the Bi- tubular Heart of the Rabbit. X 22 times. (After Allen Thomson.) C is more advanced than B. FF, omphalo-mesenteric veins ; h, heart; «, aorta ; the arrows indicate the direction of the circulation. animals the heart arises before the lateral parts have reached the median line (Hertwig). The two hearts then unite into a straight tube which is destined to be- come separated into the right and left hearts of the adult. Fig. 218. Figs. 217 and 218.-Ventral and Profile Reconstructions of His's Human Embryo. Lg. X 40 times. (After His.) In the profile view only the outline of the cavity of the heart is shown. F., ventricle ; A. b., bul- bus aortic. Fig. 216.-Outlines of the Anterior Half of the Chick Viewed from the Ventral Side, Showing the Heart in its Earlier Stages of Development; X 20 times. (From Quain, after Remak.) A, thirty hours; B, forty hours ; a, anterior cerebral vesicle ; b, myotomes; c, cephalic fold ; 1, omphalo-mesenteric veins; 2, 3, 4, the heart. (V.h.) At this time the heart is partly tilted over and the veins enter on the dorsal side. Viewed from in front, the auricles, which are just appearing, cannot be seen because they now lie on the dorsal side. A stage later Fig. 216 is a ventral view of two chicks just after the two primary tubes of the heart have united. It is seen that the veins (1) enter from behind, but the relation is soon changed by the heart becoming bent as is already indicated in Fig. 218. Fig. 217 shows the general form of the heart in a very young human embryo. The front of the thorax has been cut away, cutting also through the transverse septum and opening the body cavities. The entrance of the veins still lies be- hind, and the aorta in front, but the heart has already formed one complete loop, making of it an S. Fig. 218 is a profile of the same embryo, ami the heart is indi- cated as a cast of its cavity. It shows the variations in calibre of the tube through- out its length. At a somewhat later stage the heart is bent upon itself more, and Figs. 219 and 220.-Ventral and Profile Reconstruction of His's Embryo, Lr. X 40 times. (After His.) V, ventricle; Vh, auricle; 4. b., bulbus aorta;. Fig. 219. Fig. 220. 392 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Heart. Heart. (Figs. 221 and 222), the adult form can already be recog- nized. The heart has undergone a half revolution in ad- dition to the S-formation. The veins enter nearer the head and the artery arises behind, or away from the head. The aorta lies upon the ventral side and the auricles clasp it from the dorsal. Fig. 222 X shows the great irregu- f ik larity of the cavity. (SUPPLEMENT.) the heart is much as it is in the Fig. 224, only that the auricles are " shoved " into the ventricle. This is of con- siderable importance, as we shall later on see. In both cases the aorta arises from the right side of the ventricle, and in its further development one-half of it must be transferred to the left side in order to produce the aorta proper, while the half which remains becomes the pul- monary artery. Figs. 221 and 222.-Ventral and Profile Reconstruction of His's Embryo, Bl. X 40 times. Ho, auricle ; C.a, auriculo-ventricular canal; Tr, aorta. Fig. 221. Fig. 222. A profile view of a heart, of this stage is shown in Fig. 223, which shows the relation of the heart to the sur- rounding organs. The auricle (A) is now in front and the ventricle (V) behind. The larger veins enter on the dorsal side by one common opening into the right side of the auricle, the future right auricle. After the heart has once reached this stage it is only to be separated into its right and left tubes to produce the mammalian heart. In some of the lower animals this never takes place, and in others it is only partial. In Fig. 224. Fig. 223.-Reconstruction of a Human Embryo enlarged sixteen times, and viewed from the left side. H, hypophysis ; 1, 2. 3, and 4, branchial pockets; M, mouth ; A, auricle ; F. ventricle; AD, descending aor- ta ; L, lung; S, stomach ; P, pancreas. Figs. 224 and 225.-Two Stages in the Formation of the Septum Inter- medium in the Heart of the Human Embryo. (From Quain, after His.) In A the septum is represented as growing from a triangular area to the left of the sino-auricular orifice ; in ZZ it has coalesced with the en- docardial cushions, and lies like a stopper in the auricular canal. r.a. and l.a., right and left auricle ; r.v. and l.v., right and left ven- tricle ; s.r., sinus renniens ; Eu.v., Eustachian valve ; s.sp., septum spuriuni : s.s., septum superior; s.inf., septum inferior; s.i., septum intermedium ; v.c.s., vena cava superior dextra. Fig. 225. cases of arrested development the human heart in the adult may show any of its embryological forms, as, for instance, an open foramen ovale. Figs. 224 and 225 show the interior of two stages of early human hearts, taken from models made by His. In Fig. 224, the auricle is quite enlarged and the vein enters on the right side. The ventricle is considerably smaller and its walls are much thicker than those of the auricle. This is usually the case with the hearts of em- bryos, as they die with the ventricles contracted and the auricles filled with blood. Between the two there is a narrowed auriculo-ventricular canal and with a corre- sponding constriction on the outside of the heart. Fig. 225 shows a more advanced stage. The general state of The first important change in the separation of the heart into its two lobes is the formation of two septa, one arising in the auricle, S.8., which grows backward, and one in the ventricle, S.inf., which grows forward. At the same time that these are growing toward each other, a cushion of connective tissue, s.i., is formed upon the two lips of the slit-like auriculo-ventricular opening 393 Heart. Heredity. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) which aids to complete the septum of the heart. This cushion, or septum intermedium, soon separates the au- riculo-ventricular opening into two canals, the right and the left, to become the right and left auriculo-ventricular canals, respectively. The septum of the auricle is completed by the septum superior growing backward to unite with the septum in- termedium. Before this takes place, however, several changes take place in the septum (Figs. 226, 227, and 228). the former it is multiple, and in the latter, as a rule, single. It is therefore seen that the formation of a sec- ondary or true foramen ovale, as described by Born, is confirmed by the comparative anatomical evidence (see Born, Arch. f. mik. Anat., Bd. 33, and Rose, Morph. Jahrbuch, Bd. 15 and 16). The opening of the vein is guarded by two folds of the walls of the heart, which really form a complete bi- cuspid valve (Fig. 225). An additional fold extends to Figs. 226, 227, and 228.-Side views of three stages, to show the formation of the foramen ovale. (After Born.) S', first portion of the superior septum; S", second portion of the superior septum; O', first foramen ovale; O", secondary opening or true foramen ovale; E.p., endothelial cushion in the auriculo-ventricular opening. Fig. 226. Fig. 227. Fig. 228. These figures represent three stages of a lateral view of the two septa above named, with the opening between them. In Fig. 226, the septum superior is forming, but the S. intermedium is not yet complete. It was at first thought that the opening between them, O', produced the foramen ovale, but later observations by Born show'ed that there is a secondary rupture in the septum superior which is destined to become the true foramen ovale (Fig. 227, 0"). The portion of the septum superior which has been cut off by the formation of the foramen ovale, unites with the septum intermedium as shown in Fig. 227. The secondary septum, S", later on forms the limbus of Vieus- sens, and the first, S', the valve of the foramen ovale. A partial septum of the heart is first met with in cer- tain classes of ganoid fishes (Dipnoi), where it arises by a union of muscle-columns in the auricle. This is a very incomplete septum, which is gradually increased in the amphibia. In neither of these cases has the septum reached the auriculo-ventricular opening. This gives us this from in front, the septum spurium, S.sp. Later on, the orifice enlarges to incorporate a portion of the veins into the auricle, but the right lip of the opening remains perma- nently as the Eustachian valve. The pulmonary veins are formed later. They grow from the lungs to the left auricle. Returning to a stage of heart as represented in Fig. 225, we notice that the common ventricle shows a con- striction on the outside which corresponds to a septum forming on the inside. As this septum from the inside, the septum inferius, grows toward the S. intermedium, it must also grow toward the aorta to join a septum aorti- cum which is forming there. Figs. 229-231, show how this is brought about. Fig. 229 represents a stage in which the auricles empty wholly on the left side and the aorta arises wholly on the right. As the inferior septum arises the auriculo-ventricular opening moves, as it were, toward the aorta ; and when the septum inf. unites with the S. intermedium it cuts the auriculo-ventricular open- ing in such a manner, that the blood coming from the Fig. 229. Fig. 230. Fig. 231. Figs. 229, 230, and 231.-Diagrams to Show the Formation of the Septum of the Ventricles and Bulb, and the Mode of Division of the Common Aunculo-ventricular Aperture. (From Quain, after Born.) r.v. and l.v., right and left ventricles ; s.inf., inferior septum ; b., bulb of aorta ; s.b., septum bulbi; au.vc., auriculo-ventricular canal; ao., aorta ; /J.a., pulmonary artery. an auricle partly divided, both compartments commu- nicating with each other, and through a common opening with a single ventricle, much as is shown in the heart of the human embryo pictured in Fig. 224. In the reptiles the septum is complete, and we have two distinct auricles communicating independently with the ventricle. We can view this as the completion of the second stage, i.e., a complete union of the septum superior and the septum intermedium. In birds and mammals, however, there is a secondary rupture of the septum of the auricle ; in right auricle passes to the right ventricle, and the blood from the left auricle to the left ventricle. A small open- ing exists for quite a while between the twp ventricles, but, later on, this is closed by a membrane of connective tissue. Before the ventricles are completely separated from each other, a view of the septum appears much as is shown in Fig. 232. The aorta is already completely separated into two vessels : the one which communicates with the right ventricle, communicating above with the fifth aortic arch, and the one from the left with the 394 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Heart. Heredity. fourth. The fourth is destined to become the aorta, and the fifth the ductus arteriosus from which the pulmo- nary artery arises. At an early stage the tissue of the ventricle walls be- comes spongy on the inside. These meshes and columns play a very important part in the formation of the valves, the figure indicates, the primitive chordae tendinese are formed. Soon, however, the bands lose their muscle- fibres, in the portions which form the chordae, and in other portions, farther away from the valve, the muscle- fibres increase to form the papillary muscle. The valves have therefore a double origin : (1) Peripheral, and (2) from the septum intermedium. According to His, the tendons attached to the valves arising from the periphery, have their permanent attachment to the valve from the beginning, while a portion of those passing to the valve and arising from the septum intermedium may possibly shift their valvular attachment. The muscle-walls of the two ventricles are at first of the same thickness, but later on that of the left becomes heavier than that of the right. The spongy layer in the ventricle is covered with endocardium, and from this layer the column® earnest arise. Distinct muscle tissue is not present until the heart is quite well formed, although it begins to beat long before this. The nerves grow into the heart from the spinal ganglia, at a much later period, as shown by Onody and by W. His, Jr. Franklin P. Mall. HEREDITY. The progress of our knowledge in pathol- ogy and etiology constrains me to curtail the boundary of hereditary diseases since the former article under the above title was written. I am now satisfied that leprosy should be dropped from the list, and that heredity figures little in tuberculosis. Bacteriology has made good its claim on both diseases, and both are found to be transmissible in direct ratio with facilities for communication in the recognized habit of contagious maladies. The bacilli of the two diseases are strikingly similar, both morphologi- cally and in tardiness of growth and multiplication. Leprosy is never congenital and is never developed until months, and sometimes years, after contagion has had time to do its work. It is most prevalent among people whose habits of life bring them into closest social relations, and segregation of those affected is the most effectual mode of checking its spread. There is even less difficulty in tracing the probable or possible source of contagion than exists in the case of scarlatina and measles, though it is vastly less communicable. Congenital tuberculosis has been found in a very few in- stances within the last five years, and congenital pneumo- nia has been reported in at least one instance. The bacillus tuberculosis is sometimes found in the blood, associated with diffused miliary tuberculosis as causative of the lat- ter. It is conceivable that a woman affected with this form of the malady might communicate it to her unborn child through the placenta ; but it is not in accordance ■with the accepted etiology and known progress of tubercu- losis, to presume that its bacilli, taken into the blood of a foetus, may remain latent, with or without reproduc- tion, and the usual local effects be postponed for many years. It is quite reasonable that the opportunities for infection afforded by the close social relations of kin- dred dwelling together have been mistaken for heredity in this disease, as in leprosy. On the other hand, we have the experiment of Sanchez-Toledo, of Paris, who has injected pure cultures of Koch's bacillus tuberculosis into the jugular vein of pregnant guinea-pigs, but failed to find the bacilli in the blood or organs of the progeny, though the mothers became tuberculous. Uncured syphilis in either parent at time of procrea- tion, or during gestation in the mother, is quite apt to be transmitted to the foetus, but may be controlled by active treatment of the mother before parturition. Thorough eradication of the syphilitic virus by prolonged treatment terminates its transmissibility. As to gout, rheumatism, goitre tending to cretinism, scrofula, cancer, and the various neuroses, heredity figures as a predisposing factor in some obscure way. In the case of tuberculosis, predisposition probably means unusual susceptibility to the admission or action of the bacilli; perhaps extraordinary delicacy of epithelium in the res- piratory or intestinal tract,which may be inherited. We might even suppose a duplex inherited predisposition to syphilis, consisting in a delicate epithelium associated Fig. 232.-Opened Heart of a Human Embryo Seen in Profile. X 33 times. (After His.) p., pulmonary artery; a., aorta; S.a., septum aorticum; S.inf., septum inferior ; S.s., septum superior; S.int., sep- tum intermedium; v.e., Eustachian valve; S.r., sinus reuniens; V.c.i., vena cava inferior ; Lb., liver ; D., diaphragm. muscle-columns, and the tendons to the valves. We have seen that the septum intermedium is formed in the auriculo-ventricular canal and divides it into a right and a left half. When this is complete a section of the heart gives a picture as shown in Fig. 233. At the same time Fig. 233.-Section through the Heart of a Human Embryo to Show the Formation of the Column® Carne®. X 36 times. (After His.) Oe., oesophagus; Lg., lung; M.pp.. membrana pleuro-pericardiaca ; S.r.d. and S.r.s., right and left horns of the sinus reuniens; F. E., Eustachian valve ; S.int., septum intermedium ; S.inf., septum infer- ior ; S.a., septum aorticum. a portion of the auricle is, as it were, pushed into the ventricle, as the figure shows. This invagination takes with it a portion of the epicardium, to be incorporated in the formation of the valve. Connective tissue is incor- porated in the formation of the valve at its beginning, although the great bulk of the valve is at this time com- posed of muscular fibres. The burrowing of the ven- tricle walls includes also the valves, and in this way, as 395 Heredity. Heredity. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) with a propensity for promiscuous sexual indulgence. Whether such conjunction be most apt to occur in the sanguine temperament, is a point for investigation by the numerical method. S. S. Herrick. " Pan genesis of Germ-cells " and " Continuity of Germ- cells," according to the dominating idea in each. a. Pangenesis.-The idea pervading pangenesis was first expressed by Democritus that the " seed " of animals was derived by contributions of material particles from all parts of the bodies of both sexes, and that like parts produced like. Two thousand years later, Buffon revived this conception of heredity in his "molecules orga- niques." In 1864 Herbert Spencer suggested the ex- HEREDITY IN THE OVUM AND SPERMATOZOON.1 The purpose of this article is to give a summary of recent researches upon the structure and relations of the male and female germ-cells in connection with the phenomena of reproduction and heredity. Much progress has been made of late years in the knowledge of the stages through which the ovum and spermatozoon pass before and after union, and in the abnormal effects produced by experimental, chemical, and mechanical disturbances. The latter bear directly upon teratology. Speculation and investigation upon heredity have kept pace with em- bryological research, and at the present time the marvellous trans- formation of an infinitesimal speck of protoplasm (the fertilized ovum) in- to the adult body with its hereditary structure and tendencies, is under the focus of researches in the follow- ing branches of biological science : A. Development of the Race. -Heredity.-1. Speculative, includ- ing theories of Pangenesis and Con- tinuity of Germ-plasm, Darwin, Weismann, etc. 2. Anthropological, including data from human anatomy and anthro- pology, teratology, etc. 3. Comparative, including data from the evolution of lower types of animals (palaeontology). 4. Experimental (or experimental evolution), including influences upon offspring of experiments upon the structure, function, or environment of parents. Systematic researches in this line have just begun. B. Development of the Indi- vidual.-Embryology. 5. Normal, including the phenomena of ovogen- esis and spermatogenesis, fertiliza- tion, histogenesis, intercellular ac- tion, as derived from study of lower types of animals and plants. 6. Experimental, the diversion of normal phenomena by mechanical, chemical, and thermal experiments upon different stages of development. It will be seen that the two objects of investigation are The Body-cells, or Soma, - the ex- pression of Heredity. The Germ-cells = the potential vehicles of Heredity. The many problems resolve them- selves into the simple questions : How do the parent germ-cells trans- form into the offspring body, and how does the latter influence the new germ- cells, or, what are the total relations between the body-cells and germ-cells ' A. Development of the Race.-1. Speculative He- redity.- In a valuable summary of the past theories of he- redity 2 J. A. Thomson distinguishes three general prob- lems, which are often confused. 1st. What characters dis- tinguish the germ-cells from other cells of the body ? 2d. How do the germ-cells derive these distinguishing charac- ters ? 3d. How shall we interpret " particulate " inheri- tance, or the reappearance of single peculiarities in the offspring ? The various theories may be grouped under two heads, First generation. Second generation. Third generation. Fig. 234.-Illustrating, I. Normal Histogenesis ; II. Theory of Pangenesis; III. Theory of Continuity of Germ-plasm. The fertilized ovum (f.o.) contains the ma- ternal and paternal characteristics. This expands into the adult body, or Soma (S'), composed of somatic cells (n, s, m, d. v) constituting the nervous, secretory, muscular, digestive, and other tis- sues, besides the germ-cells (G) of the reproductive organs. I. Histogenesis.-Showing the succes- sive rise, G, and union, f.o., of the maternal and paternal germ-cells by direct histogenesis. II. Pangenesis.-Showing the tissues of the body N, contributing to the germ-cells G, so that each f.o. is composed of elements (gemmules) from both the somatic and germ-cells. III. Continuity of the Germ-plasm.-Showing the division of the embryo, f.o., into somatoplasm, s (from which arise the body-cells), and germ-plasm, G (which passes direct to the germ-cells), establishing a direct continuity. istence of " physiological units," derived from the body- cells of the parent, forming the germ-cells and then developing into the body-cells of the offspring. This the- ory is designed to explain how changes in the body-cells of the parent can be transmitted to the offspring. ("Use- inheritance, or "inheritance of acquired characters "). It is interesting to note the course of Darwin's thought upon this matter in his published works and in his " Life and Letters." He was at first strongly opposed to the views advanced by Buffon, by Erasmus Darwin, and ex- 396 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Heredity. Heredity. panded by Lamarck, that changes in the parents are transmitted to offspring, as the main cause of evolution. But gradually becoming convinced that his own theory of natural selection could not account for all the facts of evolution, he unconsciously became a strong advocate of Lamarck's theory and contributed to it a feature which Lamarck had entirely omitted, namely, a theory of he- redity expressly designed to explain the transmission of acquired characters. Darwin's " provisional hypothesis of pangenesis "3 postulated a material connection between the body-cells and germ-cells by the circulation of mi- nute buds from each cell; each body-cell throws off a "gemmule" containing its characteristics; these gem- mules multiply and become especially concentrated in the germ-cells ; in the latter they unite with others like them- selves ; in course of development they grow into cells like those from which they were originally given off (see Fig. 234). Galton,4 who has always been doubtful in regard to use- inheritance, while advancing a theory of " continuity," partly approved Darwin's pangenesis idea in the cautious statement: "Each cell may throw off a few germs that find their way into the circulation and thereby have a chance of entering the germ-cells." At the same time Galton contributed very important experimental disproof of the existence of " gemmules," and, in fact, of the popular idea of the circulation of hereditary characters in the blood, by a series of careful experiments upon the transfusion of blood in rabbits ; he found that transfused blood did not convey with it even the slightest tendency to transfer normal characteristics from one variety of rabbit to another. Professor Brooks,6 of the Johns Hopkins University, then contributed an original modification of pangenesis in which the functions of the ova and spermatozoa were sharply differentiated. (1) He regarded the ovum as a cell especially designed as a storehouse of hereditary characteristics, each characteristic being represented by material particles of some kind ; thus hereditary charac- ters were handed down by simple cell division, each fertilized ovum giving rise to the body-cells in which its hereditary characters were manifested, and to new ova in which these characters were conserved for the next gen- eration (this portion of Brooks's theory is very similar to Galton's and Weismann's). (2) The body-cells have the power of throwing off " gemmules," but this is exercised mainly or exclusively when its normal functions are dis- turbed, as in metatrophic exercise or under change of en- vironment. (3) These gemmules may enter the ovum, but the spermatozoon is their main centre. According to this view the female cell is rather conservative and the male cell progressive ; the union of these cells produces variability in the offspring, exhibited especially in re- gions of the offspring corresponding to the regions of functional disturbance in the parent. This hypothesis was well considered, and while that feature of it which distinguishes the male and female germ-cells as different in kind has been disproved, and the whole conception of gemmules is now abandoned, the fact still remains that we shall nevertheless be obliged to offer some hypothesis to explain the facts disregarded by Weismann for which Brooks provides in his theory of the causes of variation. b. Continuity of Germ-cells.-The central idea here is an outgrowth of our more modern knowledge of embry- ogenesis and histogenesis, and is, therefore, comparatively recent ; it is that of a fundamental distinction between the "germ-cells," as continuous and belonging to the race, and the " body-cells," as belonging to the individual. Weismann has refined and elaborated this idea, but it was not original with him. Richard Owen," in 1849, Haeckel,7 in 1866, Rauber,8 in 1879, in turn, dwelt upon the distinction which Dr. Jaeger, now of manufacturing fame, first clearly stated : " Through a great series of generations the germinal protoplasm retains its specific properties, dividing in every reproduction into an ontogenetic portion, out of which the individual is built up, and a phylogenetic portion, which is reserved to form the reproductive material of the mature offspring. This reservation of the phylo- (SUPPLEMENT.) genetic material I- described as the continuity of the germ protoplasm. . . . Encapsuled in the ontoge- netic material the phylogenetic protoplasm is sheltered from external influences, and retains its specific and em- bryonic characters." The latter idea has, under Weis- mann, been expanded into the theory of isolation of the germ-cells. Galton introduced the term "stirp" to express the sum total of hereditary organic units contained in the fertilized ovum. His conception of heredity was derived from the study of man, and he supported the idea of continuity in the germ-cells in order to account for the law of transmission of "latent" characters ; it is evident from this law that only a part of the organic units of the " stirp " become " patent " in the individual body ; some are retained latent in the germ-cells, and become patent only in the next or some succeeding generation. For example, the genius for natural science was "patent" in Erasmus Darwin, grandfather of the great naturalist, •it was " latent " in his son, and reappeared intensified in his grandson, Charles Darwin. Weismann has carried the hypothesis of continuity to its extreme in his simple and beautiful theory of heredity, which is founded upon the postulate that there is a dis- tinct form of protoplasm, with definite chemical and molecu- lar properties, set apart as the vehicle of inheritance ; this is the germ-plasm, G, quite separate from the protoplasm of the body-cells or somatoplasm, S. Congenital characters arise in the germ-cells and are therefore blastogenetic, while acquired characters arise in the body-cells and may be called somatogenetic. To clearly understand Weismann's hypothesis, let us follow his history of the fertilized ovum in the forma- tion of the embryo. It first divides into somatoplasm and germ-plasm (see Figure 234, III.) ; the somatoplasm supplies all the tissues of the body-n, s, m, d, v, ner- vous, muscular, vascular, digestive, etc.-with their quota of hereditary structure ; the germ-plasm is kept distinct, throughout this early process of embryonic cell- division, until it entei's into the formation of the nuclei of the new reproductive cells, the ova or spermatozoa of the next generation. Here it is isolated from the changes of function in the somatoplasm, and in common with all other protoplasm is capable of unlimited growth by cell- division without loss or deterioration of its past store of hereditary properties ; these properties are lodged in the nucleus of each ovum and spermatozoon, and these two cells, although widely different in external accessory structure (because they have to play an active and pas- sive part in the act of conjugation), are exactly the same in their essential molecular structure, and the ancestral characters they convey differ only because they come along two different lines of descent. When these cells unite they carry the germ-plasm into the body of another individual. Thus, while the somatoplasm of each indi- vidual dies, the germ-plasm is immortal and simply shifts its abode from one generation to another ; it con- stitutes the chain from which the individuals are mere offshoots. Thus the germ-plasm of man is continuous with that of all ancestors in his line of descent, and we have an explanation of the early stages observed in de- velopment in which the human embryo passes through a succession of metamorphoses resembling the adult forms of lower types of animals (Von Baer's law). In order to emphasize, as it were, the passage of the germ-plasm from one generation to another without de- terioration in its marvellous hereditary powers, Weismann added the idea of its physiological isolation. Not only does he repudiate the pangenesis notion of increment of germ-plasm by addition of gemmules, but he believes that it is unaffected by any of the normal changes in the somatic or body-cells. As this continuity and isolation would render impossible the transmission of characters acquired by the somatoplasm, Weismann began to ex- amine the evidence for such transmission, and coming to the conclusion that it was insufficient, in his notable essay on " Heredity," in 1883, he boldly attacked the whole Lamarckian theory, and has continued to do so in all his subsequent essays. 397 Heredity. Heredity. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Being forced to explain evolution without this factor, he claimed that variation in the germ-plasm was con- stantly arising by the union of plasmata from different lines of ancestral descent which occurs in fertilization, and that these variations are constantly being acted upon by Natural Selection to produce new types. He thus re- vived Darwin's earlier views of evolution, and this in part explains his strong support by English naturalists. Weismann admits the general principle of ovumsanum in oorpore sano, but denies that any local specific disor- ders or changes in the parent body which- are not congen- ital (i.e., in the parental germ-plasm) ever result in sim- ilar specific localized disorders or changes in the offspring body. The mutilation of a parent will not reappear in the loss or abnormal development of the same structure in the child. The effects of use and disuse are not in- herited. In these opinions of Weismann, Kolliker, His, Pfluger, Ziegler, and other eminent anatomists and phy- siologists concur. Speculative Heredity has not yet produced a satisfac-» tory theory of hereditary transmission. Weismann's "germ-plasm," as a distinct substance, is disproved by recent embryology-there is no such continuous and specific form of protoplasm confined to certain cells. (See Histogenesis.) We conclude this section by a brief statement of what is required in a complete working theory of heredity. The matter of first importance in life is the repetition and preservation of type, the principle which insures the un- erring accuracy and precision with which complex organs are built up from the germ-cells ; the force of regression and the more remote forces of reversion all work in this conservative direction. The matter of second importance, but equally vital to the preservation of races, in the long run, is the forma- tion of new types adapted to new circumstances of life. In the following table are placed some of the facts of human evolution, and as they are part of inheritance, they also constitute the main external phenomena of heredity . renewed interest. I would first call attention to the fact that this matter has only an indirect bearing, for a mutila- tion is something impressed upon the organism from with- out ; it is not truly " acquired ; " the loss of a part by accident produces a sudden but a less profound internal modification of the organism than the loss of a part by degeneration. Most of the results are negative; many of the so-called " certain " cases prove upon investigation to be mere coincidences. Weismann9 himself experi- mented upon white mice, and showed that nine hundred and one young were produced by five generations of ar- tifically mutilated parents, and yet there was not a single example of a rudimentary tail or of any other abnormality in this organ. The cases of cleft ear-lobule have recently been summed up.10 Israel reports two cases of clefts in which the parents' ears were normal. Schmidt and Orn- stein report affirmative cases. His shows that an affirm- ative case, cited by V. Zwiecki, is merely an inherited peculiarity. The entire evidence is unsatisfactory, and, upon the whole, is decidedly negative. Not so, however, in cases where the mutilation results in a general disturbance of the normal functions of dif- ferent organs, as in the experiments conducted by Brown- Sequard 11 upon guinea-pigs, in which we see " acquired variation" intensified. In these, abnormal degeneration of the toes, muscular atrophy of the thigh, epilepsy, ex- ophthalmia, etc., appeared in the descendants of animals in which the spinal cord or sciatic nerve had been severed, or portions of the brain removed. It was also shown that the female is more apt to transmit morbid states than the male ; that the inheritance of these in juries may pass over one generation and reappear in the second ; that the transmission by heredity of these pathological results may continue for five or six generations, when the normal structure of the organ reappears. These cases, which are incontestable, at first sight appear to establish firmly the transmission of acquired characters ; they were so regarded by Browm-Sequard. These lesions act directly upon the organs, and the abnormal growth in these or- gans appears to be transmitted. But can they not be in- terpreted in another way, namely, that the pathological condition of the nerve-centres has induced a direct dis- turbance in those portions of the germ-cells which repre- sent and will develop into the corresponding organs of the future offspring ? b. Previous Fertilization.-Consider next the influence exerted upon the female germ-cell by the mere proximity of the male germ-cell, as exhibited in the transmission of the characteristics of one sire to the offspring of a suc- ceeding sire, observed in animals, including the human species, also in plants. The best example is the oft- quoted case of Lord Morton's mare, which reproduced in the foal of a pure Arab sire the zebra markings of a previous quagga sire. Some physiologists have attempted to account for these remarkable indirect results from previous fertil- ization or impregnation, by the imagination of the mother having been strongly affected, or from inter- change between the freely inter-communicating circula- tion of the embryo and mother, but the analogy from the action in plants (in which there is no gestation but early detachment and development of che fertilized cells) strongly supports the belief that the proximity of male germ-cells acts directly upon the female cells in the ovary. All that we can deduce from these facts is that in some manner the normal characteristics and tenden- cies of the ova are modified by the foreign male germ- cells without either contact or fertilization. c. Maternal Impression.-The influence of maternal im- pressions in the causation of definite anomalies in the foetus is largely a matter of individual opinion. It is denied by some high authorities, led by Bergmann and Leuckart. Many medical practitioners, however, believe in it, and I need hardly add that it is a very gen- eral popular belief, supported by numerous cases. The bearing which this mooted problem has upon the discus- sion is this : if a deviation in the development of a child is produced by maternal impression, we have a proof that deviation from normal hereditary tendencies can be pro- Phenomena of Heredity. Conservative (toward past type). Neutral. Progressive (toward future type). a. Repetition of parental type. Fortuitous and a. Definite Variation in single characters, by accumulation =: b. Regression (in many characters) to con- temporary race Indefinite b. Definite Variation in m a n y characters (from contemporary type. race type). c. Reversion (mainly in single characters) to past race type. Variability. 2 and 3. Anthropological and Comparative Heredity.- The bearing of these branches of study upon heredity is as follows : Is there any proof that definite changes in the body, whether due to physiological and anatomical ef- fects of certain trades or occupations, or to accidents, or to pathological changes, produce corresponding changes in the ova and spermatozoa, so as to reappear in offspring. The supposed influences of certain occupations has, for example, been discussed by Arbuthnot Lane, in a series of papers in the Journal of Anatomy and, Physiology ; he maintains the theory of inheritance of functionally pro- duced modifications. If such inheritance does take place there must be some interchange of material (as implied by Pangenesis) or of forces between the parent body and the reproductive cells. a. Physiological Data.-There are three phenomena about which there is much scepticism, to say the least, which bear upon the question of a possible interchange of forces between the body and the germ-cells. These are the inheritance of mutilations, the influence of previous fertilization, and the influence of maternal impressions. They are all in the quasi-scientific realm, which embraces such mental phenomena as telepathy. That is, we incline to deny them simply because we cannot explain them. a. Mutilations.-Since the publication of Weismann's essays the subject of inherited mutilations has attracted 398 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Heredity. Heredity. (SUPPLEMENT.) duced without either direct vascular or nervous con- tinuity. We see that there exists an analogy between the experi- ments of Brown-Sequard and Obersteiner, the influence of the previous sire and the influence of maternal im- pressions. These three classes of phenomena all tend to show that the hereditary forces which normally repro- duce organs in their typical and perfect form may be checked or diverted by other forces which exert a pro- found abnormal influence upon the body, chiefly through the nervous system. This diversion of the normal direc- tion of heredity, in the opinion of the writer, compels us to assume that there is some functional and structural connection between the body-cells and the germ-cells, the nature of which is at present wholly unknown. Our ignorance as to the nature of this connection between the body-cells and germ-cells does not compel us to deny that it exists. To discover this link is now one of the chief ends of biology. 3 Morphological Data.-We must keep in mind that the body-cells (somatoplasm) and germ-cells (germ-plasm) were originally one, as in all single-celled organisms like the amoeba. In course of evolution the separation of these two kinds of cells proceeded gradually, and com- parative heredity shows that the power of reproduction may not be confined to the germ-cells but may extend in a feebler degree into the body-cells as well. a. The separation of the germ-cells is in the regular order of evolution upon the principles of physiological division of labor. The unicellular organisms combine all the functions of life in a single mass of protoplasm, that is, in one cell. In the rise of the multicellular or- ganisms the various functions are distributed into groups of cells, which specialize in the perfecting of a single function. Thus the reproductive cells should fall into the natural order of histogenesis, and the theory of their entire separation is more consistent with the laws govern- ing the other tissues than the theory which we find our- selves obliged to adopt, that while separate they are still united by some unknown threads with the other cells. (Fig. 234, I.) The structural separation of what we may call the race- protoplasm becomes more and more sharply defined in the ascending scale of organisms. Weismann's conten- tion as to the absolutely distinct specific nature of the germ-plasm and somatoplasm has, however, to meet the apparently insuperable difficulty that in many multi- cellular organisms, even of a high order, the potential capacity of repeating complex hereditary characters, and even of producing perfect germ-cells, is widely distri- buted through the tissues. For example, cuttings from the leaves of the well- known hot-house plant, Begonia, or portions of the stems of the common willow-tree, are capable of reproducing complete new individuals. This would indicate either that portions of the germ-plasm are distributed through the tissues of these organisms, or that each body-cell has retained its potential quota of hereditary characters. Among the lower animals we find the same power; if we cut a hydra or bell-animalcule into a dozen pieces, each may reproduce a perfect new individual. As we ascend in the animal scale the power is confined to the reproduction of a lost part in the process known as re- crescence. As we well know, in the group to which the frog and salamande? belong, a limb or tail, or even a lower jaw, may be reproduced. The only logical inter- pretation of these phenomena is, that the hereditary powers are distributed in the entire protoplasm of the organism, and the capacity of reproduction is not ex- hausted in the original formation of the limb, but is capable of being repeated. There has been considerable discussion of late as to the seat of this power of recrescence. It seems not impossible that, in the vertebrates, it may be stored in the germ-cells, and it would be very interesting to ascertain experi- mentally whether removal of these cells would in any way limit or affect this power ; we know that such re- moval in castration or ovariotomy sometimes profoundly modifies the entire nature of the organism, causing male characters to appear in the female, and female characters to develop in the male. So far as man is concerned it has been claimed by sur- geons that genuine recrescence sometimes occurs; for example, that a new head is formed upon the femur after exsection ; Dr. V. P. Gibney informs the writer that this is an exaggeration, that there is no tendency to reproduce a true head, but that a pseudo-head is formed, which may be explained upon the principle of regeneration and in- dividual transformism by use of the limb. Pfliiger's opinion is that recrescence does not indicate a storage of hereditary power, that there is no pre-exist- ing germ of the member, but that the re-growth is due to the organizing and distributing power of the cells at the exposed surface, so that, as new formative matter arrives, it is built up gradually into the limb. This view would reduce recrescence to the level of the regeneration pro- cess which unites two cut sections of the elements of a limb in their former order. It is partly opposed to the facts above referred lo, which seem to prove the distri- bution of the hereditary power. Yet it seems quite con- sistent to consider these three processes-a, reproduction of a new individual from every part; b, recrescence of a new member from any part; c, regeneration of lost tis- sues-as three steps indicating the gradual, but not entire withdrawal of the reproductive power from the body-cells into the germ-cells. Among the reasons for believing in the complete separa- tion of the germ-cells in man are the following : The very early differentiation of these cells in the embryo, observed with a few exceptions in all the lower orders of animals, and advancing so rapidly in the human female that several months before birth the number of primordial ova is estimated at seventy thousand, and is not believed to be increased after the age of two and a half years. The most patent practical proof is that we may remove every portion of the body which is not essential to life and yet the power of complete reproduction of a new in- dividual from the germ-cells is unimpaired. Among the many reasons advanced for pensioning the crippled soldiers of our late war we never hear it urged that their children are incapacitated by inheritance of injuries. The strongest proof, however, rests in the evidence which may be cited from heredity of the extraordinary stability of the germ-cells which is the safeguard of the race. b. The specific nature of the germ-plasm must be con- sidered before we consider its relations. Wherein lies the conservative power of the germ-plasm, and in what direction shall we look Tor its transforming forces ? You see at once that marvellous as is the growth of cells in other tissues, the growth of the germ-cell is still more so. We find it utterly impossible to form any conception of the contents of the microcosmic nucleus of the human fertilized ovum, which is less than of an inch in di- ameter, but which is, nevertheless, capable of producing hundreds of thousands of cells like itself, as well as all the unlike cells of the adult organism. We can only translate our ideas as to the possible contents of this nucleus in the terms of chemistry and physics.1 According to the general law the germ-cell is consid- ered as matter potentially alive and having within itself the tendency to assume a definite living form in course of individual development. The nucleus must be extraor- dinarily complex, for it contains within itself not only the tendencies of the present type, but of past types far dis- tant. The supposition of a vast number of germs of struct- ure is required by the phenomena of heredity; Nageli has demonstrated that even in so minute a space as took cub. millimetre, 400,000,000 micellae must be present. Speculation has also been active in this field. Spencer 4 assumed an order of molecules or units of protoplasm lower in degreethan the visible cell-units, to the internal or polar forces of which, and their modification by ex- ternal agencies and interaction, he ascribed the ultimate responsibility in reproduction, heredity, and adaptation. This idea of biological units seems to the writer an es- sential part of any theory; it is embodied in Darwin's " gemmules," in Haeckel's " plastidules," yet, as Lankes- 399 Heredity. Heredity. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. ter says, the rapid accumulation of bulk is a theoretical difficulty in the material conception of units. In the direction of establishing some analogy between the repe- tition power of heredity and other better-known func- tions of protoplasm, Haeckel and Hering have likened heredity to memory, and advanced the hypothesis of per- sistence of certain undulatory movements ; the undula- tions being susceptible of change and therefore of pro- ducing variability, while their tendency to persist in their established harmony is the basis of heredity. Berthold, Gautier, and Geddes13 have speculated in the elaboration of the idea of metabolism ; the former holding the view that "inheritance is possible only upon the basis of the funda- mental fact that in the chemical processes of the organism the same substances and mixtures of substances are repro- duced in quantity and quality with regular periodicity." We have merely touched upon these speculations to show that the unknown factors in heredity are also the unknown factors in operation in living matter. All wTe can study is the external form, and conjecture that this form represents matter arranged in a.certain way by forces peculiar to the organism. These forces are exhibited or patent in the somatic cells ; they are potential or latent in the germ-cells. 4. Experimental Heredity.-We must refer here again to the experiments of Brown-Sequard and of Obersteiner upon guinea-pigs, and to work which is now being in- stituted in France, and to some extent in England and Germany. This promises to be a most fruitful field of research by which the truth or falsity of Weismann's theory of heredity will be finally established. Experimental evolution or heredity seeks to determine chiefly whether modifications produced in the parent, or a series of parents, are transmitted to offspring. To test the supposed inheritance of mutilations, Weismann has cut the tails off nine successive generations of mice without producing the slightest diminution of the tail in later generations. It will be possible to test the problem of maternal impressions, and the firmly established be- lief of breeders, that an ill-bred sire injures all the subse- quent offspring of well-bred sires. Thus far no abso- lutely satisfactory results of this kind of experimental work have been recorded. B. The Development of the Individual. - 5. Normal Embryology.-The structure and physiology of the germ-cells will ultimately yield the physical basis of the science of heredity. After all, the data which may be gathered from the four branches of heredity above considered are only indirect, the direct data must come from embryology. In the actual material and dynamics of the germ-cells and their relation to body dynamics we look for the physical basis of the following phenomena : a, Repetition of parental characters ; b, variations from parental characters ; c, reversion to ancestral characters ; d, prepotency of one sex over the other ; e, causes of de- termination of sex ; f, causes of anomalies, monstros- ities, abnormal births, multiple births. Some of these latter phenomena («,/,) occur in course of development of the embryo ; others can be traced directly back to the germ-cells in their earliest stages. The Sexes.-We have naturally come to look upon the two sexes as fundamentally distinct. As regards hered- ity and our present study, they are fundamentally sim- ilar. Unlike as the male and female, the ovum and spermatozoon, are in external appearance, all the ma- terial and mechanism of inheritance is exactly the same in each. Sex is a secondary distinction, both in evolu- tion and in the development of the individual. The causes finally determining sex may come surpris- ingly late in development, and, according to the investi- gations of Diising, and the experiments of Yung and of Giron,13 are directly related to nutrition. High feeding favors an increase of the percentage of females, while, conversely, low feeding increases the males. In Yung's experiments with tadpoles the following results were ob- tained : Females. Males. Normal percentage 57 43 High nutrition 92 8 (SUPPLEMENT.) Geddes expresses this principle in physiological terms of metabolism, that anabolic (constructive) conditions produce females, while katabolic (destructive) conditions produce males. I think we may now safely eliminate the factor of sex from our calculations upon the problem of heredity, and thus rid ourselves of one of the oldest and most wide- spread fallacies. We shall thus, in using the terms " pa- ternal" and "maternal," imply merely the distinction between the qualities of two lines of ancestral descent. Asexual Conjugation. - Let us, therefore, first con- sider Reproduction (Conjugation and Development) in those lower single-celled organisms in which there is no sex-such as the Amoeba, or the somewhat higher types of Ciliated Infusoria. Of the forms described below, Stylonichia is an animalcule varying in diameter from one-eleventh to one-third millimetre ; it is free, swimming in stagnant water, or it sometimes creeps on the surface of plants. Glaucoma is also found in ponds, and swims by means of five cilia upon its ventral surface. Maupas on Conjugation among the InfusoriaN-Among the newer researches which throw light upon this old problem, those of Maupas are certainly the most brill- iant. After a most exact and arduous research, extend- ing over several years, he collected his results in two memoirs, published in 1889 and 1890. His experiments were first directed upon the laws of direct multiplication by fission, or direct division of the cell. These revealed a complete cycle of life without conjugation in the single-celled Infusoria, and showed that after a long period this mode of reproduction be- comes less vigorous, then declines, and finally ceases altogether unless the stock is rejuvenated by union with individuals of different broods, or conjugation. In other words, these broods of minute organisms grow old and die unless they are enabled to fertilize each other by an exchange of hereditary substance altogether analogous to that observed in the higher multicellular organisms. The cultures were made in a drop of water upon a slide, and feeding was adapted either to the herbivorous or carnivorous habits of the species. Under these condi- tions it was found that the rate of fission, or direct repro- duction by division, varied directly with the temperature and food, rising in some species (Glaucoma scintillans) to five bipartitions daily. With the optimum of condi- tions this rate, if sustained for thirty-eight days, would produce from a single individual a mass of protoplasm equivalent to the 'volume of the sun. This rate was, however, found to be steady for a time, and then the off- spring decline into "senescence," in which they appear at times only one-fourth the original size, with reduced organs and degenerate nuclear apparatus. This is reached sooner in some species than in others ; Stylonichia pus- tulata survives three hundred and sixteen generations by fission, while Leucophrys patula persists to six hundred and sixty generations. Finally, even under the most fa- vorable conditions of environment, death ensues. Death does not ensue where conjugation is facilitated by mingling the offspring of different broods in the same fluid, as in the natural state. Maupas soon discovered that exhaustion of food would hasten conjugation be- tween members of mixed broods. He thus could watch every feature of the conjugation process, and determine all the phases in the cycle of life. These differed, as in the longevity of the species. In Stylonichia, for example, " immaturity " extended over the first one hundred bipar- titions ; "puberty," or the earliest phase favorable to con- jugation, set in with the one hundred and thirtieth bipar- tition ; "eugamy," or the most favorable conjugation phase, extended to the one hundred and seventieth ; then "senescence" set in, characterized by a sexual hypencs- thesia in which conjugation was void of result or rejuve- nescence, owing apparently to the destruction of the essential nuclear apparatus. Conjugation begins with the approach of two individ- uals, and adhesion by their oral surfaces. There is no fusion, but an immediate transformation in the cell contents of each individual sets in, concluding with an interchange of nuclear substance. In each cell Maupas 400 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Heredity. Heredity. distinguishes between the (M) meganucleus (Fig. 235 ; the macronucleus, nucleus, endoplast of authors), which pre- sides over nutrition and growth, and divides by constric- tion, and the (m) micronucleus (paranucleus, nucleolus of authors), which presides over the preservation of the species. The latter contains chromatin ; it is the seat of rejuvenescence, the basis of heredity, it divides by mitosis, showing all the typical stages of karyokinesis excepting the loss of the cell membrane. The transformation in each of these copulating cells first affects the centres of hereditary substance, viz., the micronuclei ; they divide three times ; thus the micro- nuclear substance is reduced to one-fourth of its original bulk. It is contained in two surviving micronuclei (the others being absorbed or eliminated), one of which mi- grates into the adjoining cell ; the other remains station- ary. This migration is followed by a fusion of the migrant and stationary micronuclei; this fusion effects a complete interchange of hereditary substance, after which of two individuals. 2. That before union the hereditary substance in each is greatly reduced. 3. That there is no real line between male and female, the conjugating cells are simply in a similar physiological condition wherein a mingling of hereditary characteristics affords a new lease of life. As Maupas says : " Les differences appelees sexuelles portent sur des faits et des phenomenes purement accessoires de la feconda- tion. La fecondation consiste uniquement dans la re- union et la copulation de deux noyaux semblables et equivalents, mais provenus de deux cellules distinctes." In this conclusion as to the secondary and superficial, rather than fundamental, difference between the two sexes, Maupas simply confirms the views of Strassburgcr the botanist, Hensen, R. and O. Hertwig, Weismann, and others, namely, that sex has evolved from the necessity of cell conjugation ; that even in the higher forms the cells born by the two sexes are absolutely neutral so far as sex is concerned ; the wide difference of form of the germ-cells is a Fig. 235.-The Conjugation of Infusoria. (From Weismann, after Maupas.) 1, Two infusoria copulating; M. meganucleus : m, micronucleus ; 2-5, successive divisions of micronuclei; 6, fertilization by the migration of one of the persisting micronuclei from each infusorian into the other; 7, union of the interchanged micronuclei. the two infusoria separate and enter upon a new' life cycle. Meanwhile the meganucleus breaks up and is reconsti- tuted in each fertilized cell. Maupas gathers from these interesting phenomena ad- ditional proof that the chromatin of all cells bears the inherited characteristics, and that the cytoplasm and nu- cleoplasm, or achromatin, is the dynamic agent, because the micronuclei bearing the chromatin * are the only structures which are permanent and persistent, all the other structures - nucleoplasm, cytoplasm, etc. - being replaced and renewed. The reduction of the chromatin is purely quantitative, the eliminated and fertilizing micronuclei being exactly equivalent ; after the chro- matin has been quartered the cell becomes incapable of further activity until it is reinforced by chromatin from the other copulating cell. No Distinction between the Sexes in Heredity.-The three laws which underlie these phenomena are: 1. That fer- tilization consists in the union of the hereditary substance result of physiological division of labor-the mass and yolk of the ovum having been differentiated to support the early stages of development, while the spermatozoon has dis- pensed with all these accessories and acquired an active vibratile form for its function of reaching and penetrating the ovum. The evidence of the Infusoria is paralleled among some of the plants, in which conjugation between entirely similar cells is observed. Sexual Conjugation.-As noted above, in higher types of animals in which the sexes are different, the ovum and spermatozoon differ widely in external form ; this is because the ovum is a food-carrier and is passive while the spermatozoon is active, and, so far as we know, merely a carrier of hereditary substance. The ovum is sometimes found a million times larger than the sperma- tozoon, but the materials concerned in heredity in each are now believed to be exactly equal. The various processes through which these two cells pass before and after conjugation are technically known as : 1. Ovogenesis and Spermatogenesis-Reduction of Here- * For the meaning of these terms see the following section. 401 Heredity. Heredity. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. ditary Substance: Preparation of male (sperm) and female (ovum) cell for conjugation. 2. Fertilization-Union of Hereditary Substance: Union of certain elements in male and female cells into a new single cell. Or union of maternal and paternal hereditary elements. 3. Embryonic Development-Distribution of Hereditary (SUPPLEMENT.) cells; they are now believed to represent the active dynamic and regulative material of the cell. The centro- some is apparently the active agent in every cell division throughout life. We may begin at any point in the cycle of develop- ment. In order to understand most clearly the respective HEREDITARY SUBSTANCE Fig. 236. Fig. 238.-Typical Cell Division, showing the Distribution of Chroma- tin. (From Parker, after Carnoy.) A-C, arrangement of the chroma- tin ; D-E, formation of the chromosome rods and loops ; F, splitting of the loops ; G-H, retraction of the chromatin into the two daughter- cells. Substance : Division of the fertilized ovum (oosperm) into the cells of the tissues. This is a complete cycle of changes, for among the embryonic cells from the oosperm soon appear the germ- cells in which we observe a fresh ovogenesis or spermato- genesis. Now what elements enter into these changes ? The older topography of the ovum as a typical cell is very well known ; there is first the (a) cell-wall, and with- in this the cell-protoplasm or (b) cytoplasm. In the centre of the cell is the (c) nucleus, containing its protoplasm or (d) nucleoplasm. Flemming was the first to show that suspended in the nucleoplasm is a special highly staining form of protoplasm which he called [e) chromatin, and still more recently it has been found that on one side of the nucleus, in the cytoplasm, are suspended one or two small special centres or (f) centrosomes. functions of the chromatin and centrosomes let us first consider embryonic development and observe the mech- anism by which the chromatin is evenly distributed to every ceil of the body. a. Distribution of Hereditary Substance.-The starting- point of distribution is the oosperm (fertilized ovum). This contains chromatin and centrosome elements from each parent, as shown in the accompanying figure. The chromatin is contained in four chromosomes (the number characteristic of the species); two of these chromosomes come from the sperm-cell and two from the ovum-cell. These chromosomes are kept separate in the first stages, and then united in one coil, Fig. 239. The centrosomes Cell-wall Maternal centrosonu Nucleus Two mater- nal chro--; mosomes Sperm nu- ■ cleus. Paternal and ma- ternal chromatin coil Nucleoplasm Two pater- .:>■ nal chro- mosomes. Direction sphere Paternal centro- some. Centrosome dividing Cytoplasm Fig. 237.-Oosperm prior to Union of Maternal and Paternal Elements. Fig. 239.-First Stage after Union of Maternal and Paternal Elements. The chromatin presents the appearance of a fine net- work in the interior of the nucleus when the cell is quies- cent, but when the cell is dividing it is drawn out into a number of fi ne compact threads or chromosomes (Waldeyer), as shown in the accompanying figures. An equal quantity of chromatin is found in the ovum nucleus and sperm nucleus, and this is now believed to be the material basis of heredity. The chromosomes are concerned in all cell life, and are considered qualitative. The centrosomes are specific bodies lying in the cyto- plasm outside of the nucleus, and moving to its opposite poles only during division. As proved in " polyspermy," these bodies are also found in both ovum and sperm- are believed to unite and combine maternal and paternal elements from the start. The phenomena of karyokinesis which attend the divis- ion and distribution of this hereditary substance through- out the whole course of embryonic and adult develop- ment are well illustrated in Carnoy's figures (Fig. 238). First we have the quiescent period, in which the chro- matin presents the appearance of a coiled, tangled thread ; surrounding this is the clear nucleoplasm (or achromatin) bounded by the nuclear membrane ; the extra-nuclear substance, or cytoplasm, is apparently undifferentiated. As soon as cell division sets in, however, radiating lines are seen in the cytoplasm above and below the nucleus, these are called the centrosomic filaments, since they pro- 402 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Heredity. Heredity. (SUPPLEMENT.) ceed from the two centrosomes (Fig. 240). As the activ- ity becomes more intense the filaments are seen to diverge from a centre-the plasmic centrosome-which lies just without the nucleus at either pole ; this radial display of finally a number of distinct vertical rods, chromatin rods, or chromosomes, are formed. A remarkable and significant fact may be noted here, that the number of chromosomes varies in the cells of different species, and even in the cells of different varie- ties (as in the thread-worm of the horse-Ascaris megalo- cephalaf but in each variety the same number is constant in all the cells of each individual through all stages; thus the same number of chromosomes appears in the first segmentation of the fertilized ovum as in all the subse- quent cell division in the tissues. Carnoy next indicates the vertical splitting of each rod into a loop or link preceding the horizontal splitting ; thus we may conceive of a thorough redistribution of the chromatin before it passes into the daughter-cells. The split loops are each retracted toward a centrosome, sug- gesting to some authors a contractile power in the centro- somic filaments; each chromasome being apparently withdrawn by a single filament. The chromatin is again retracted into two coiled threads, each the centre of the daughter nucleus with a single centrosome beside it. But when the line of cleavage is drawn between the two cells (Fig. 238), the single centrosome in each cell divides so that each daughter-cell is now complete with its chromatin coil and two centrosomes. This process has been well figured by Watase 1 (Figs. 240 and 241). It thus appears that both the chromatin and centro- some are permanent elements of the cell, such as we for- merly considered the nucleus ; the apparently passive chromatin is divided with great precision by the active centrosomes, then the centrosomes simply split in two to resume their cleavage function. Each chromosome and each centrosome is separate-these two elements are ap- parently passed down distinct from generation to gener- ation. The theoretical meaning of this distribution process will now be discussed. The whole process can be very clearly followed in Figs. 237, 239, 240, 241, 242, 243. Fig. 240.-The Central Portion of a Tissue-cell during Division. Differ- entiation of the Cytoplasm and Nucleus of a Squid Embryo, Loligo. (After Watase.) M. the nuclear membrane ; F, achromatin or nucleo- plasm; C, cytoplasm or protoplasm outside of the nucleus; A-A, the two centrosomes; B, extra nuclear centrosome filaments ; E, intra- nuclear centrosome filaments attached to n, n', the chromatin rods. cell-forces suggested the term "asters" to Fol, and " spheres attractive" to Van Beneden ; they may here be called direction spheres. The behavior of the chro- matin, or hereditary substance, under these forces, is Chromosomes Centrosomes Fig. 242.-Second Stage. Division of Centrosome. The Nature of the Hereditary Substance in each Body- cell.-There still remains to be considered the relation of the hereditary substance to the future development of the individual. There is some reason to believe that each cell of the body contains not only the characters of the special tissue to which it belongs, but other characters. There is first the astonishing fact that, as the chromatin goes on dividing, its mass or volume remains apparently undiminished. That is, there is apparently as much chromatin in one of the many million active cells of the body as in the original fertilized ovum, and we face still the enigma as to the nature of this chromatin and its functions. 1st. In plants De Vries 16 and others believe that all or by far the greater number of cells in the plant body con- tain the total hereditary characters of the species in a la- tent condition. Kolliker11 has fully discussed this ques- tion and called attention to Muller's early views that, in spite of the physiological division of labor producing the tissues, the properties of all the tissues can be derived Fig. 241.-After Division. Interior of a Daughter-cell in the Squid. (After Watase.) Division has just taken place and the daughter- nucleus, N, shows the chromatin coil. The daughter centrosome is just forming two new centrosotnes, A-A, by direct division. shown in Carnoy's diagrams (Fig. 238). First, the nuclear wall breaks up, then the chromatin coil unfolds into lines of vertical striation which become thread-like (hence the term mitosis), and then more compact, until 403 Heredity. Heredity. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. from the nuclear substance of a single tissue, as proved by experiments upon the lower animals. According to this idea there is only a quantitative distribution, the chromatin increases in bulk, and each tissue only calls forth certain of its powers. Weismann, on the other hand, has held that the course of development is marked by a constant qualitative distribution of his germ-plasm or hereditary substance, so that each tissue finally contains only the hereditary substance which belongs to it and the total hereditary substance or germ-plasm goes only to the new ova and spermatozoa. Kolliker opposes this idea and maintains that the hereditary substance, or " idio- plasm,'' passes into all cells, in which it divides in course of development ; step by step, from the embryonic layers to the tissues, the constructive processes are under the direction of the nuclei containing this hereditary sub- stance ; it remains in every nucleus for a long period un- altered. in order to finally, here earlier, there later, im- press its peculiar constructive forces. In certain ele- ments, as in blood-corpuscles, epidermal scales, etc., it disappears, as the last product of division. (SUPPLEMENT.) by this theory, for he regarded the germ-cells as herma- phrodite until one sex was eliminated. But now that the researches of Hertwig have given the last blow to Van Beneden's theory, and it follows that there can be no sexual difference in chromosomes, there remains room for the analogous view that the maternal and paternal chromosomes remain distinct throughout the course of development, not as sexual elements but as substances with different hereditary tendencies. Babi, an eminent embryologist, shares this view, and it is supported by Boveri upon the observation that in each division the paternal and maternal elements are kept distinct, and in Ascaris, for example, two of the chromosomes of each division figure are paternal and two are maternal. In favor of this hypothesis we may place the following facts : 1st, That there are an even number of chromosome rods in all cells ; 2d, that the number is constant through- out all the subsequent changes in the tissues; 3d, that the number is fixed for each species or variety ; 4th, that the number is the same in each sex. Against this non-furion hypothesis we must consider Centrosome Centrosome dividing Chromo- somes Line of - cell division. Chromo- somes Centrosome Centrosome dividing Fig. 244.-Fourth Stage. Division of Cell-wall. Fig. 243.-Third Stage. Division of Chromosome. Hertwig takes a similar view; since embryonic and adult cell division is differential there must be a form of differentiation in the nucleus, but this does not consist in the total elimination of some qualities and survival of others, nor of a reduction in mass. The mass and the properties remain the same in every cell, the differ- entiation consists in the activity of certain elements in certain tissues. The potential of the nuclear substance is differently exerted at different points. Here, again, we have the idea of patent and latent hereditary elements, such as appear in the entire individual upon a larger scale. In the following paragraph Hertwig expressed his view of nuclear control and cytoplasmic differentiation : " As I saw in the transformation of the nucleus during fertilization proof that it is the bearer of hereditary sub- stance I recognized a great advance in the fact that the nucleus leaves in the same form in every cell, and in its vesicular capsule is somewhat removed from the meta- morphoses of the cells. As Nageli spread his idioplasm as a net-work throughout the whole body, so, according to my theory, every body-cell contained in its nucleus its quota of hereditary substance, while its specific histo- logical peculiarities were to be regarded as its plasma- products." 2d. The next question is the fate of the maternal and paternal contributions to the embryo : are they fused or do they lie side by side ? Here there is a wide difference of opinion. We have seen that in the oosperm (Fig. 237) the maternal and paternal chromosomes are entirely separ- ate, but as soon as this cell divides into two, the mater- nal and paternal chromatin forms an intimate net-work. On the one side Van Beneden is the leader of those who regard each cell of the body as in a sense hermaphrodite ; as we have seen, his views of maturation and the signifi- cance of the exclusion of the polar bodies were colored the extreme complexity of the division process, and the long-intermediate resting, or thread stage, in which the chromatin lies in a confused coil. Ilertwig advocates a fusion hypothesis and argues that if the elements are dis- tinct we should find some evidence that the maternal or paternal part is atrophied or replaced, or excluded from the nucleus, for both parts cannot share alike in the control of the cell. Such are his grounds for sup- porting the " Verschmelsungstheorie," or fusion theory, also advocated by Waldeyer, to the effect that by the complete upion of the maternal and paternal substance a new product is formed ; in this fusion the law of pre- potency may come into play, causing one or other of the parental tendencies to predominate, or there may be an even redistribution, whereby, as expressed by Hensen, " the hereditary substance of the son is not that of the father plus that of the mother, but is his own, with a new hereditary form resulting from the combination." While suspending judgment between these two views as to the fusion or non-fusion of the hereditary sub- stances, we may appeal to the external phenomena of heredity for light upon the probabilities in the question. First, we have the very decided opinion of Francis Gal- ton in regard to particulate inheritance ; he is so im- pressed with the fact that we are made up bit by bit of separate structures derived from different ancestors that he has even suggested that the skin of the mulatto may represent not a fusion of white and black but an exces- sively fine mosaic in which the colors are so distributed as to give the appearance of blending. We do some- times observe patches of color as evidence of uneven distribution. As Galton distinguishes two types of struct- ures with reference to inheritance, viz., those which blend and those which do not blend, we might correlate these types with prepotency, replacement, and fusion. Where characteristics do not blend, as in eye-color, it is evident that, while the offspring must receive from both 404 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Heredity. Heredity. parents the material basis for the formation of the com- plete color of the eye, either the maternal or paternal material must be prepotent and exclude the development of the other ; the logical inference is that the former actively replaces the latter ; but it is not necessary that exclusion from the cell-chromatin should follow. Now, while some blends seem to support the theory of fusion, the sum total of facts of heredity are strongly against this as a universal principle, for many maternal and pa- ternal structures are preserved in their absolute integrity for generations without the least indication of mixture. b. Reduction of Hereditary Substance.-By the above "distribution" the chromatin is constantly increasing in quantity, because an equal amount passes into every cell of the body. The embryonic sperm and' ovum cells receive their share, it follows that originally each has the chromatin complement of a complete cell ; part of this must be gotten rid of, otherwise the oosperm will represent not one cell but two cells. It has long been known that the ovum is prepared or " ma tured" for the reception of the sperma- tozoon by the extrusion of two small "polar bodies," containing both chroma- tin and hyaline protoplasm, and separat- ing off by karyokinetic division. From this it appears that before fertilization the original amount of chromatin is re- duced in quantity. For twenty-five years speculation has been rife as to why the ovum should extrude a portion of its substance in two small cells. Why not in one cell ? why not in a larger num- ber ? Thanks to the intense curiosity which these polar bodies have aroused, and to the great variety of explanations which have been offered for them, we have arrived to-day at a solution which links the higher animals with the lower, breaks down the supposed barrier be- tween the sexes, and accords with the main external facts of heredity. It seems best to disregard tlie order of discovery, and to state the facts in the most direct way. First, a few words as to the speculations upon the meaning of the polar bodies. The early theories of the meaning of sexual congregation or fertilization 1 were naturally based upon the apparent signif- icance of this process in the human species, in which the sexes are sharply distinguished from each other in their entire structure, and the reproductive cells are also widely 'differentiated in form, the ovum large and passive, the spermatozoon small and active. It wras most natural to regard these elements as representing distinct physiological principles, corresponding to the essential sexual characteristics-in short, as male and female cells, the former vitalizing and rejuvenating the latter. Thus one of the earliest definite " polar-body" theories was that the embryonic ovum was hermaphro- dite, and contained both male and female principles, and that it was necessary to get rid of the male substance before the spermatozoon could enter. As Von Siebold and Leuckart had demonstrated that some ova reproduce parthenogenetically, that is, without fertilization by spermatozoa, Weismann turned to such forms for the solution of this problem, and was surprised to find that parthenogenetic ova only extrude one polar body; this led him to attach one meaning to the first polar body, and another meaning to the second, which he viewed as designed to reduce the hereditary substance in the ovum without regard to sex. Thus both this and the older theory conveyed alike the idea of reduction, but with an entirely different supposition as to the nature of the material reduced or eliminated. The Modern Theory of Reduction.-Van Beneden's dis- covery that these bodies contained chromatin led gradu- ally to the view that they were not fragments of the ova, but represented minute, morphologically complete, cells. Biitschli showed that they were given off independently of, and prior to, the contact of the spermatozoon, and, finding in the leeches that the first polar body subdivides to form two bodies, he considered them as formed by true cell division, and containing both nucleoplasm and chromatin. Giard independently reached a similar opin- ion, assigning an atavistic meaning to the polar cells. Whitman, in 1878, advanced the idea that they repre- sented vestiges of the primitive mode of reproduction by fission, while Mark described them as "abortive ova." At this point speculation subsided until it was revived by Weismann's attempt to connect these bodies with his theory of heredity,19 already referred to. The whole his- tory is clearly given in R. Hertwig's masterly memoir upon Ovo- and Spermatogenesis in the Nematodes.20 Tak- ing advantage of Boveri's discoveries in staining tech- nique, and stimulated by Weismann's prediction that spermatozoa would also be found to extrude polar bodies. Fig. 245.-The Maturation of Ova, or Formation of Polar Bodies in Ascaris. (From Weismann, after Hertwig.) A, original germ-cell in embryonic germ-layer-4 chromatin rods ; B, ovum mother-cell-8 rods; C-D, first polar body extruded ; E, splitting of first polar body-ovum still contains 4 rods ; F, second polar body extruded-ovum mature with 2 rods. this author examined all stages in the peculiarly favor- able germ-cells of the thread-worm of the horse (Ascaris megalocephala'). He made the surprising discovery that ova and sper- matozoa are formed in a substantially similar manner by repeated divisions, the single difference being that the last products of division among the sperm-cells are effective spermatozoa, capable of development in fertili- zation, while the last products of division in the ovary are, first, the true ova, and second, the abortive ova (polar cells) incapable of development. In both ova and spermatozoa, when ready for union, the nucleus contains but one-half the chromatin which a typical nucleus con- tains ; in the case of A. megalocephala (see Fig. 245) each of the germ-cells contains but two chromosomes, while the normal body-cells contain four. The manner in which this maturation of the germ-cells for conjugation is brought about is beautifully shown in these diagrams, taken from Weismann's essay, "Amphimixis." We ob- serve that the number of chromosomes in the primary germ-cells is four (Figs. 245 and 246, A). Then are formed by subdivision the ovum and sperm "mother- cells," in which the chromatin substance is doubled, so 405 Heredity. Heredity. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) that we observe eight chromosomes. The mother-cells then divide and the chromatin is reduced to four rods ; a second division rapidly follows, whereby the chromatin is reduced to two rods, or half the original quantity. These last divisions take place by karyokinesis, but, as Hert- wig points out, they differ from typical karyokinesis in the fact that the divisions follow so rapidly upon each other that the vesicular resting-period of the nucelus is omitted. Thus, he suggests, is prevented an over-accu- mulation of chromatin substance prior to the fusion of the ovum and sperm. It is evident that the polar-cells are rudimentary ova, which do not possess the yolk-mass, etc., essential to de- velopment, and are divided off at a very late stage, some- times after the egg has left the ovary, but are in other respects analogous to the spermatozoa. The reason why these polar-cells have not disappeared altogether in either plants or animals is that they originally possessed a deep physiological importance. As the first polar-cell subdi- vides and forms two, it follows that from both ovum and sperm mother-cells four daughter-cells are formed, each containing half the chromatin substance of a normal nucleus. In the ovary three of these daughter-cells abort and the fourth forms a true ovum ; in the sperm-gland, however, all four daughter-cells form spermatozoa. We may thus consider the polar-cell problem as in all based upon the observed fact that the two pairs of rods do not fuse, but lie side by side, and upon the assump- tion that these pairs are kept distinct in each cell through all the subsequent stages of embryonic and adult devel- opment. If this is the case, the hereditary substance contributed by the father would remain separate from that contributed by the mother, throughout. 2. " Each of these pairs would be made up of the collective pre- dispositions which are indispensable for the building up of an individual, but each possesses an individual charac- ter, for they are not entirely alike. I have called such units ' ancestral plasms,' and I conceive that they are contained in numbers in the chromatin of the mature germ-cells of living organisms, also that the older nuclear rods are made up of a certain number of these. . . . Obviously these units cannot become infinitely minute ; however small they may be they must always retain a certain size. This follows from the extremely compli- cated structure which we must without any doubt ascribe to them." These units are not, however, ultimate, they are in turn extremely complex, and are composed of countless biological units of the kind conceived of by Nageli and others. 3. The reduction of the chromatin only acquires a meaning when taken in connection with the above supposition of distinct ancestral plasms, and has no meaning if we accept Hertwig's view that there is a complete fusion of maternal and paternal germ- plasm. This meaning is that reduction in the maturation of germ-cells is sui generis, it does not divide the ances- tral plasms into two similar groups, but one daughter- cell receives one set of germ-plasms or hereditary pre- dispositions, and another daughter-cell receives another ; reduction is thus differential. According to this view the four sperm and ovum daughter-cells would each con- tain a different set of ancestral plasms. 4. The fact that the chromatin substance is doubled in the sperm and ovum mother-cells, so that we observe double the num- ber of rods characteristic of the species, is to be ex- plained as an adaptation to the requirements of natural selection, for this doubling and subsequent double divis- ion render possible an infinite number of combinations (as many, in fact, as there are individuals) for Selection to operate upon. This explanation of Weismann's is an example of his apotheosis of the theory of natural selection. Every pro- cess is made to suit this theory, which, as we have seen in the section on Speculative Heredity, is, in his opinion, the exclusive factor of evolution. But this very high de- gree of mingling and remingling of ancestral predisposi- tions would be fatal to evolution, for after a combination favorable to survival had been established in one gener- ation it would be broken up into a new combination, perhaps unfavorable to survival, in the next generation. His entire essay upon "Amphimixis," or the theory of mingling of reduced hereditary substance, marks a turning-point to decline in Weismann's influence as a bi- ologist. His whole reasoning is now in a circle around the natural-selection theory. C. Union of Hereditary Substance-The Meaning of Conjugation.-Weismann looks upon sexual reproduction as designed to mingle hereditary tendencies and to create individual differences whereby natural selection may form new species. It is evident that such combinations must be mainly fortuitous and productive of indefinite variations. The fact, however, that variability and evolution by the accumulation of certain variations in successive gen- erations is also observed in organisms which reproduce asexually, both among plants and animals, shows that we must look in another direction for the underlying cause or purpose of sexual reproduction. Weismann rightly combats the old idea of ritalization of the ovum by the spermatozoon, and it is perfectly evident from the researches of Maupas and Hertwig that the ovum may as accurately be said to vitalize the spermatozoon as the reverse. Conjugation is simply the approxima- tion of two hereditary substances of distinct origin and their incorporation into a single cell destined to give rise to a new individual. The action and reaction of Fig. 246.-Spermatogenesis in Ascaris. (From Weismann, after Hert- wig.) A, original germ-cell-4 chroma'in rods ; B, sperm mother- cell-8 rods ; C-D, first daughter-cells, with 4 rods each ; E-F, forma- tion of second daughter-cells, or mature spermatozoa, with 2 rods each. probability settled ; the whole process is probably an inheritance or survival of a primitive condition in which all four ova, like all four spermatozoa, were fully func- tional. The Relation Between the Reduction of the Chromatin Substance and Heredity.-We have just seen that the last stages in the preparation of the ova and spermatozoa for conjugation result in halving the number of rods in the original germ-cells. Now, as Hertwig and Weismann point out, one point is still left in doubt. Why is the chro- matin substance doubled in the mother-cells so that two successive subdivisions are necessary to reduce it to half the original quantity ? Hertwig has not attempted to answer this question, as he prefers to wait for further research. Weismann, however, who is unfortunately cut off from research by failing eyesight, has offered a speculative solution to this problem which he trusts may guide future investigation. This leads to a few words in regard to bis concep- tion of the relation of the chromatin to heredity. 1. His first premise is that in fertilization there is not a fusion of chromatin, but that a certain independence is preserved between the maternal and paternal elements, 406 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Heredity. Heredity. these substances may be considered equal and mutual, so far as we now know. The remarkably ingenious experiments of Hertwig and Boveri, above alluded to, strengthen this idea. Some years ago Weismann wrote : "If it were possible to in- troduce the female pronucleus of an egg into another egg of the same species, immediately after the trans- formation of the nucleus of the latter into the female pronucleus, it is very probable that the two, nuclei would conjugate just as if a fertilizing sperm-nucleus had pene- trated. If this were so, the direct proof that egg-nucleus and sperm-nucleus are identical would be furnished." Boveri succeeded in accomplishing a similar feat by shaking an ovum and thus depriving it of its nucleus and subsequently admitting a spermatozoon which fertilized the de nucleated ovum and produced a complete individual! Weismann goes further, and maintains that there is nothing in the nature of vitalization or "rejuvenes- cence " in conjugation-that, given proper environment, protoplasm is immortal and runs upon a course of un- diminished activity. This we have seen is not the case in the infusoria, and, as recently remarked by Hartog, there is only one class of organisms which, according to our present knowledge, are completely agamous and im- mortal, namely, the group which includes the bacteria. It may in future appear that even in these minute organ- isms there is a cycle of development in which conjuga- tion plays its part. Maupas's experiments seem to establish the interpreta- tion of the purpose of conjugation as well as of sex, the latter being a consequence of the former, namely, that after a long period of direct subdivision of hereditary material from a single individual, a limit is reached be- yond which the forces of heredity are not reproduced in their original intensity unless combined with another set of similar forces of different origin. This combination restores the original intensity. It is objected to this that two sets of feeble forces cannot constitute one vigorous force, but this is met by the observed fact that such union does start a new life cycle, and is therefore reju- venescent. We may regard this as the fundamental meaning of conjugation and the production of variations as entirely secondary. 6. Experimental Embryology.-Experimental em- bryology plays the role of experimental physiology and vivisection upon the ovum, spermatozoon, oosperm, and embryo. The idea is to discover normal laws and rela- tions by setting up abnormal relations. Thus the Hert- wig brothers for many years experimented upon the ovum during the conjugation period with drugs and ex- tremes of temperature and found that when the regu- lating forces in the ovum are artificially suspended abnormal conjugation and development results. Follow- ing the gravity experiments of Pfluger, Roux has opened up a new branch of embryology in his " Entwickelungs- mechanik," or the science of the combinations of vital energy which produce development by studying the in- fluence of gravitation, light, heat, and magnetism upon the embryo.21 Roux has also practised the extirpation method by removal of portions of the embryo. Verworn has also practised extirpation upon the infusoria, or single-celled organisms. A third line of experiments has been introduced by Driesch and Wilson by shaking the embryo in the two- and four-cell stage, and thus pro- ducing out of a single oosperm from two to four complete individuals. Some of the results of these various meth- ods may now be briefly summarized. a. Relation of Nucleus to Cell.-After a long series of experiments, Verworn reaches the conclusion that the nucleus is not a dynamic or force centre, either auto- matic or regulating, but the nucleus combined with the extra nuclear protoplasm must be the seat of heredity. He compares the role of the nucleus with that of a cell organoid, like the chlorophyll of plant-cells, as not con- stantly present but as necessary to activity. This con- clusion coincides with the prevailing theory we have outlined as to the relations between the chromatin (with- in the nucleus) and centrosomes (without the nucleus), although Verworn, working upon living cells, naturally (SUPPLEMENT.) could not separate either of these elements, which are only brought out by staining.22 b. Abnormal Fertilization or Polyspermy.-In the nor- mal state the entrance of a single spermatozoon produces a reaction in the ovum-wall preventing the entrance of other spermatozoa, but when the ovum is weakened by chloroform solution, also by morphine, cocaine, cu- rare, and other poisons, two or more spermatozoa enter before the reaction appears ; in fact the degree of poly- spermy is directly proportional to the intensity of the chemical, thermic, or mechanical disturbance of the ovum. Nicotine and strychnine seem to increase the activity of the spermatozoa. Double fertilization or over- fertilization has not in a single case resulted in the pro- duction of twins, so that Fol's supposition is negatived, although other forms may behave differently. Fol sup- posed that single, double, or multiple births might be proportionate to the number of spermatozoa entering the ovum. The effect of over-fertilization is to produce a number of karyokinetic figures, or spindles (see Fig. 238, illustrating " typical cell division ") within the oosperm instead of one ; the normal cell division runs riot, and no complete individuals are produced. The cell-division may be arrested at any stage by thermic in- fluences ; thus two pronuclei, paternal and maternal, about to unite can be held apart in an oosperm, by lower- ing the temperature. Polyspermy also results from a lowered temperature. It is noteworthy that the con- ditions of bastard fertilization (fertilization by sperm of another variety of animal) and polyspermy are different ; chloroform produces the latter, but not the former. The latest researches upon polyspermy are those of Ruckert. He has made the surprising observation that in some fishes the penetration of more than one sperma- tozoon into the ovum is a normal process. But a single sperm nucleus unites with the ovum nucleus to form the main tissues of the body, while the other sperm nuclei combine with certain elements in the ovum and form the parablast, an embryonic layer whose history has always been doubtful. c. The Production of Twins and Double Monsters.-See Driesch in the embryos of starfish, Hertwig in the same form, and Wilson in the embryos of the lancelet (Am- phioxus, the lowest animal in the vertebrate scale). Wil- son's experiments are the latest. He produced, with perfect ease, embryos from one-half to one-eighth the natural size, and corresponding in number from two to eight, by shaking the early embryo in its various stages of division from two to eight cells. Thus just after the oosperm has divided into two cells, shaking produces two quite separate and independent twins of half the normal size. These embryos develop into free swim- ming larvae, but do not live more than a day. Shaking in the four-celled stage produces embryos which live a much shorter time. In the eight-celled stages the em- bryos develop but die before invagination. If the embry- onic cells are more or less incompletely separated, we find a series leading from scarcely bilobed forms to those in which two nearly perfect bodies are joined by only a nar- row bridge of tissue. Here we have a hypothetical key to the mode of forma- tion, both of twins and of double monsters.24 d. Dynamics of Embryonic Development.-This line of research has not as yet been brought to a stage in which its bearings upon heredity are so obvious as in the above phenomena. The main conclusions from the researches of Pfluger, Born, Hertwig, and Roux are that develop- ment is due to forces within the oosperm, which are powerful and independent enough to readjust themselves, if artificially thrown out of their normal relations, to external physical forces, such as gravity, light, heat, mag- netism, etc. Yet there are two sets of forces to be con- sidered in development: first, the internal self-differ- entiating, second, those interacting with the external environment. The self-differentiating forces are very powerful in the early stages, and the ability to produce a whole is not divided between single cells. As we have seen above that each of the four cells of a single embryo lancelet is 407 Heredity. Hernia. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. capable of producing a complete lancelet, so Roux finds that when a portion of an embryo is destroyed, say by thrusting in a hot needle, this wound is healed, the part removed is regenerated, and a complete, though sickly, individual is produced. To take another case, if the embryonic region destined to form the tail is split in two, a pair of complete tails are sometimes produced, not two half tails. On the other hand, Roux finds in some cases that if the cells are injured in early stages and not detached, the remaining healthy cells will produce only the regions of the body which they were normally destined to produce. Thus the four-celled stages mark a division into the four quarters of the future body, the right and left head end and the right and left tail end ; suppose the right head and tail ends are injured, then the left head and tail ends produce a perfect half embryo. In some cases a more or less complete individual is produced by post-generation. Similar experiments have been conducted by Chabry25 and reviewed by Andrews, who concludes that each half cell in the two-celled stage of embryonic division has for the main part all that the other has, and if the other be killed, not a half larva but a whole larva, deficient in only a few organs, will be produced. e. Cross Fertilization.-Interesting experiments have been made by Boveri upon the production of bastards, or fertilization between ova and spermatozoa of different varieties. This was done by depriving the ovum of a sea-urchin of its nucleus by shaking in a test-tube ; from the denucleated ovum of one genus [echinus) and the spermatozoon of another (sphcerechinus) a larva of middle form is produced. But when a fragment of an ovum is fertilized, and this is found possible, a larva is produced with the character of the sperm only. This appears to prove that the spermatozoon conveys the power of form- ing a complete individual. These few examples of the kind of progress which is now being made in experi- mental embryology are sufficient to prove that the phe- nomena of teratology are largely seated in the conditions under which the ovum and spermatozoon unite, that fertilization during periods of alcohol, morphia, or nico- tine poisoning may produce in the offspring of man re- sults altogether analogous to those which we observe in these lower organisms. Conclusions. Heredity.-Perhaps the most impressive result of this review of recent researches in heredity is the uni- formity of life-processes throughout the whole scale of life from the infusoria to man. Such uniformity fur- nishes a powerful argument for the advocates of the study of biology as an introduction to the applied sci- ence of medicine. Much that is now entirely omitted from medical education, because it is considered too re- mote, is in reality at the very roots of the science. To understand the disorders of life we should first thor- oughly understand the essential phenomena of normal life. Of course we shall never see life as it really is, be- cause there is always something beyond our highest magnifying powers ; but we come nearest to this invisi- ble form of energy when, with such investigators as Van Beneden, Hertwig, Boveri, and Maupas, we strip the life-processes of all their accessories and view them in their simplest external form. The problems of evolution are found to be inseparably connected with those of heredity. No theory is at all adequate which does not explain both classes of facts, and we have seen that the explanations of hereditary pro- cesses offered by those who believe in the transmission of acquired characters and those who do not, are directly exclusive of each other. We should gather from every quarter facts which bear upon the most important and central problem of the transmission of acquired charac- ters. Medical practitioners enjoy exceptional opportuni- ties of contributing evidence upon this mooted question. It must not be forgotten that while the inheritance of the changes observed during life caused by various habits is the simplest method of explaining the evolution of man, we know absolutely nothing of how such changes can be (SUPPLEMENT.) inherited through the germ-cells. We cannot at present construct even any form of working hypothesis for the process which " shapes our ends, Rough-hew them how we will." The Germ-cells.-1. The material substance of heredi- tary transmission is the highly coloring protoplasm, or chromatin, in the nucleus of the germ-cells, probably con- nected with the activity of the centrosome containing a cer- tain form of dynamic protoplasm, outside of the nucleus. 2. Before conjugation and fertilization the hereditary substance of both the male and female cells is reduced to one-half that found in a typical cell. The substance is, however, first doubled and then quartered, the meaning of which process is not understood. 3. There is a difference of opinion as to whether the paternal and maternal hereditary substances, during fer- tilization, are fused or lie side by side ; also as to how the substance is distributed through the tissues, whether en masse or by qualitative distribution. The balance of evidence seems to favor the view that the chromatin of each cell contains, besides its special characters, some of the general characters of the entire organism. 4. No physiological connection between the germ-cells and body-cells is known, but the facts of heredity seem to render such a connection theoretically necessary. Several classes of facts connected with reproduction seem to support this theory. 5. The facts of heredity support the theory of a con- tinuous hereditary substance in protoplasm, as the basis of repetition of type, but do not favor Weismann's hy- pothesis that the germ-cells alone contain this hereditary material. Bibliography. Hertwig, O. and R. : Untersuchungen zur Morphologie und Physiologic der Zelle, Parts 1 to 6. 1884-99. Gustave Fischer, Jena. Boveri, Th. : Article II. Befruchtung. Ergebnisse der Anatomie und Entwickelr.ngsgeschichte, edited by Merkel und Bonnet. Wiesbaden, 1892. Maupas : Le Rajeunissement Karyogamique chez les Cilies, Arch, de Zool. Experimentale, Bd. vii., 1889. Weismann : Essays upon Heredity and Kindred Problems. Clarendon Press, Oxford. Two vols. (Translation by Schdnland, Shipley, and Poulton.) Henry Fairfield Osborn. 1 This article is largely a revision of the Third Cartwright Lecture be- fore the Alumni of the College of Physicians and Surgeons, with new material added. 2 See Proc. Roy. Soc. Edin., 1888, p. 93. 3 See Animals and Plants under Domestication, 1875, vol. ii., p. 349. 4 Contemporary Review, vol. xxvii., pp. 80-95. 6 The Law of Heredity, 1883. 6 See Parthenogenesis, in his Anatomy of Vertebrates. 7 Generelle Morphologie, vol. ii., p. 170. 8 Zool. Anz., vol. ix., p. 166. 9 Biological Memoirs, p. 432. 10 Journal of Anatomy and Physiology, 1891. p. 433. 11 Comptes-Rendus, March 13, 1882. These experiments have been confirmed by Obersteiner. 13 See Huxley, Article Evolution, Enc. Britannica, p. 746. 13 See Geddes and Thomson : The Evolution of Sex. 1891 ; also Diising: Die Reguliernng des Geschlechtsverhaltnisses bei d. Vermehrung der Menschen. Tiere und Pflanzen, Jen. Zeit. f. Natur., Bd. 17, 1884. 14 Sur la multiplication des Infusoires Cilies, Archiv. de Zoologie ex- pdrimentale, Ser. 2, vol. vi., pp. 165-273 : Le Rajeunissement Karyo- gamique chez les Cilids, vol. vii., pp. 149-517. See also Hartog, Quart. Journ. Microscop. Science, December, 1891. 16 See Marine Biological Laboratory Lectures, 1889. Boston: Ginn & Co. 16 Hugo de Vries : Intracellulare Pangenesis. Jena, 1889. 17 Die Bedeutung der Zellkerne fiir die Vorgange der Vererbung, Zeit. f. Wiss. Zool., 1885. And, Das Karyoplasma und die Vererbung, op. cit.. 1886. 18 See also the introduction of Weismann's last essays on Heredity (Macmillan & Co., 1892), especially the article " Amphimixis." 19 On the Number of Polar Bodies and their Significance in Heredity. 1887. 20 Ei und Samenbildung bei Nematoden, Archiv. f. Mikr. Anat.. Bd. 26. 189(1. This species is found in abundance in the intestines and fasces of the horse. 21 See a summary of this whole subject in American Naturalist, May and June 1892, " Experimental Embryology," by E. A. Andrews. 22 Max Verworn: Die Physiologische Bedeutung des Zellkerns, Archiv fiir Physiologie. 1891. pp. 113-115. 23 Untersuchungen zur Morphologie und Physiologie der Zelle, O. and R. Hertwig. Fischer. Jena. 1890. 24 E. B. Wilson : On Multiple and Partial Development in Amphioxus, Anatomischev Anzeiger, 1892, p. 732. 25 Contribution a 1'Embryologie normale et t6ratologique des Ascidies simples, Journ. de l'Anatomie, 1887. 408 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Heredity. Hernia. HERNIA. In Vol. VIII. of this work the writer dis- cussed first the subject of strangulated hernia and its treatment, and then the accepted modern methods in at- tempting radical cure of hernia ; a previous volume con- taining other methods than these more recent ones. Since the time when the article in Vol. VIII. was com- pleted there have been devised in various parts of the world yet other hernial operations of interest. These and a few modifications of the thoughts which I for- merly expressed render a further study of these subjects advisable. Regarding strangulated hernia I have little to add. I endeavored in my previous article to point out, and wish here again to emphasize, the fact that the peril lies in delay and repeated and prolonged taxis, and not in the simple cutting operation to give relief. The patients who die do so not through any fault of the surgeon, but from the procrastination of the physician, who counsels waiting " just a little longer." After a few hours have elapsed it is in most instances no longer a question between the surgeon and the physi- cian, but between the surgeon and the undertaker. I think it rather a common error in the profession to estimate the degree of the strangulation by the severity of the pain and tenderness. This rule is an unsafe guide. I still think an hour sufficient time to devote to taxis and the various devices calculated to promote the suc- cess thereof. Among these, one that I can recommend as sometimes of more value than application of ice, is spraying the swelling with ether. If no spray apparatus is at hand, pouring the ether on, a little at a time, and vigorously fanning, will also cause intense cold, and this acts favor- ably both by contracting the bulk of any gas within the strangulated loop of bowel and by relieving mus- cular spasm. The latter factor, considering the aponeu- rotic nature of the stronger constricting fibres-those of the external oblique muscle,-is not, at least commonly, of importance. Perhaps spasm of the internal oblique or transversalis muscles, at or near the deep ring, may occasionally be present and be relieved by the cold. Poulticing and hot baths can hardly do good in any other way than this ; and as they must necessarily in- crease the bulk of the gas, I now substitute the cold (by ether spray) instead. It need hardly be said that aspiration of gas and of fluid faeces, through an aspirating-needle, might so readily be followed by septic infection in the track of the withdrawn needle as to make this plan a dangerous one. Recent experience has inclined me to advise against the use of morphine in any cases of strangulation. Like the hot baths and poultices, morphine can only be of use by relieving a doubtful muscular spasm. And too often, by making the patient entirely comfortable, it seals his death-warrant. He cannot-in some instances-be made to realize that the unreduced bowel, now so free from pain and tenderness, is rapidly dying from obstructed circulation. Indeed, the family doctor has not always, in such a case, the courage of his convictions, and either delays- where delay is a crime-or but half-heartedly advises a cutting operation; which suggestion the comfortable pa- tient promptly rejects. He is no more enthusiastic for the knife than is his doctor ; probably even less so. In my previous article I described the case of an el- derly lady in whom I found the strangulated gut dead, and removed thirteen inches, with immediate end-to-end reunion of the sound bowel. I then claimed that this was the largest amount ever successfully removed in America ; though in a few instances in Europe more has been sacrificed with recovery-notably a case of Koe- berle's, from whom 2.05 metres were excised. Since the publication of Vol. VIII., however, I have learned of an instance in which Dr. G. D. Beebe, of Chicago, removed four feet ten inches with success. Upon ascertaining this to be true, I published a statement of the facts in the New York Medical Record for December 5, 1891. It is possible that in my previous article upon hernia 1 did not sufficiently emphasize the point regarding opera- tion upon strangulation, that, with the rarest exceptions, it is advisable, should dead gut be found, to make an arti- ficial anus and await a return of the patient's strength- delaying some weeks if need be-rather than to attempt a restoration of continuity, by any plan, at the time of operation for relief of strangulation. The patient is al- most always in so weak a state-from postponed opera- tion-that the mere relief of the strangulation is all that is wise, and the added time needed to perform either lat- eral anastomosis or end-to-end reunion may well turn the scale against him so that he will "die cured." On the other hand, after some weeks of vigorous alimenta- tion, the patient will probably be so strong, in spite of the artificial anus, that the chances of recovery from the kelotpmy will be much better than they would have been in the first instance. It should clearly be understood, too, in a case of artifi- cial anus, that, by whatsoever technique the restoration of the bowel-continuity is performed, it is never easy. No man can conscientiously attempt it who has not prac- tised it a considerable number of times on the dog, or the human cadaver, or both. On the other hand, the general practitioner need not fear to operate for strangu- lation. If he is cleanly of person and patient and boils his instruments and dressings ; if he makes an abun- dantly long cut, thereby seeing what he is about; if he always cuts until he sees the bowel, and freely relieves it where pinched ; and if he treats it, when dead or doubt- ful, as described in the article in Vol. VIII.,-he is doing all that the most expert surgeon could do. No one to-day advocates that relic of the dark ages, replacing the gut in the abdomen without opening the sac ; for that means putting back a loop which may still be strangulated within the sac, or ruptured from the taxis, or ulcerated, dying, or dead. It is simply trusting to luck, and is bad surgery. Neither can a conscientious man permanently replace a loop of doubtful vitality and sew up his wound. If it dies, what chance of recovery has his patient ? The proper technique required under these circumstances I have already published in Vol. VIII. Though 1 have just said that if the loop of intestine be dead, giving relief to strangulation and escape to fae- ces is commonly doing all that is wise at that time in an operative way, this remark does not apply to the much more common cases in which the bowel quickly begins to regain its normal color after cutting the constriction. Here we always, as a matter of course, devote from five to ten minutes to the necessary steps in attempting rad- ical cure by one or another of the plans which I have either described or am about to detail. It would indeed be a pity to lose this opportunity to prevent, by good surgery, at one stroke, the possibility of another strangu- lation and the necessity for a truss thereafter. Since my former article was published the technique of kelotomy for restoring' continuity in a bowel badly torn, wounded, or dead, has been greatly discussed ; and it cannot be said that to-day surgeons are united in opin- ion as to what method is best. Were I again to meet a case such as the interesting one which I described in Vol. VIII., I should certainly not adopt the plan used then. I should to-day be able, by lateral anastomosis with plates cut from raw vegetable tissue (potato, for example), to complete the union in twenty minutes, or less in certain cases; and this saving of time would, of course, greatly improve the patient's prospects of recovery. It is quite generally admitted, now, that statistics, so far as they can be trusted, favor lateral anastomosis as against any of the end-to-end plans, though sometimes a lack of room compels us to use one of the latter. The deadly mesenteric junction is where leakage so often occurs, following operation by the terminal methods; and from the very first the new opening is of necessity smaller than the normal, and still further to be reduced when the plastic exudate covering the line of union is changed, as finally it must be, into scar-tissue, and this undergoes the inevitable shrinkage. 409 Hernia. Hernia. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. The very small opening that exists during the days be- fore sloughing carries it away with the faeces, is the ob- jection, too, to the recently devised and most ingenious button of Dr. J. B. Murphy, which in cholecysto-enteros- tomy seems destined to be a brilliant success. If oblique division of the bowel-ends be done, then, to be sure, the lumen is larger, but there is often a conse- quent bending or knuckle of the gut at that point, and the mesenteric danger remains. By any "stove-pipe" method, such as Jobert's or Robinson's, mistaking the proximal for the distal end would be fatal. And though Nothnagel's salt-test, as to direction of the peristaltic wave, seems an unsafe guide, we do not wish to start at the caecum and handle perhaps ten or fifteen feet of bowel to make sure which end is proximal. Then, too, by any "stove-pipe" plan, if much is excised, we are met with the difficulty that the proximal end is distinctly the larger. By lateral anastomosis, on the other hand, the operation is done at least as quickly, and it makes no difference thereby which end is proximal. The danger of leakage at the mesenteric junction with the bowel is removed ; and an abundantly large incision-four inches or so, which is now always a point to be insisted upon,-permits a free canal, even if with time the new opening contracts one-half, which it will probably do. The blind ends, which theoretically might be expected to give trouble and accumulate faeces, practically do not do so, and quickly atrophy. At the present date a majority of surgeons advocate lateral anastomosis ; and, following the lead of the Ger- mans, they have made what I believe to be a distinct backward step in laying aside all plates, rings, or other devices for aiding rapid work, and have returned to the older and certainly slower plan of suturing without such aids. Since time is so tremendous a factor in success in bowel-work,-inasmuch as a difference of five or ten minutes with the peritoneum exposed may make all the difference between life and death,-I cannot too strongly oppose the present tendency to leisurely sewing. Speed, breathless speed, is, next to cleanliness and thor- oughness, the keynote which cannot too often be sounded here. In discussing the various mechanical means of rather recent device, I cannot but think that the best of these, for reasons purely logical, are plates with a narrow, four- inch long, opening cut from raw vegetable tissue ; for in- stance, raw potato or turnip. These I devised and experi- mented with (trying also a number of other kinds of vegetable and fruit tissue) in the physiological laboratory of the College of Physicians and Surgeons, New York, during the whole winter of 1890-91, with the result that the last seventeen dogs subjected to kelotomy and the use of such plates recovered. Upon the living human subject this material-raw vegetable tissue-has been submitted to the hardest test in Germany, where, in the summer of 1892, Dr. R. von Baracz, of Lemberg, and subsequently Dr. Richard Heigl, of Coblentz, each performed abdominal section for gastro-enterostomy, both patients recovering. Dr. Heigl, in his published comments, praises these plates (in these instances cut from raw Swedish turnip) as bet- ter than Senn's bone plates. It is evident that if at any point the danger exists that such material might be digested and absorbed too soon, it would be in the stomach. Hence the value of these tests by the German surgeons named. When soaked for an hour or two in warm or tepid water (not in carbolic solution, which softens it) these raw vegetable plates-I still prefer white potato-be- come as rigid almost as wood. This is probably due to swelling of the starch-granules ; but is not accompanied by any marked change in shape of plates already cut out. After remaining for a few hours exposed to the digestive fluids of either stomach or bowel the plate begins to soften, while retaining its shape. At length it is com- pletely digested and disappears, this occurring at a period of time varying according to what part of the alimentary (SUPPLEMENT.) canal it occupies. But always during the first ten or twelve hours at least-the time in which, most of all, we fear leakage at our anastomosis-it holds the peritoneal surfaces smoothly in contact. In this length of time, or even half of it (if we have lightly scraped the surfaces to be apposed), we may be sure of firm agglutination. And after these hours of peril the softened plates yield to peristalsis, and quite easily cut free from their plate-sutures, taking them- selves out of the way. Contrast this with Senn's bone plates, which occa- sionally slide on each other and obstruct the opening, and require at least, a week or so to be removed after they have ceased to be needed ; which are tedious to prepare, expensive, and require multiple sizes for vari- ous contingencies ; which are not to be gotten in an emergency ; and which, finally, so far as the opening is concerned, are too small-sized. Whereas, on the con- trary, these vegetable plates serve every purpose of Senn's, are more quickly softened and absorbed when no longer needed, may be carved in a minute, are al- ways at hand, may be made, if desired, with a four-inch opening, and are devoid of cost. The various catgut substitutes for plates, such as Abbe's and Davis's, are of comparatively little value, be- Fig. 247.-The Potato Plate Beady for Use. (Threads short and needles omitted ; plate reduced about one-half In length.) cause, after a short time in the wet, warm faeces, they lose all rigidity, becoming absolutely limp. The same is true, in lesser degree, of Brokaw's segmented rubber rings filled with catgut strands. Moreover, the catgut devices swell greatly when put in any watery solution, such as semi-liquid faeces ; and, as Senn alleges, have sometimes thus produced dangerous pressure at the point of liga- tion. The catgut rings of Abbe (described in my previous article) are no longer used by him. A number of patients have recovered under their employment, but union of peritoneal surfaces was largely due, I must think, to the row of sutures surrounding his rings wherever used.* The solid catgut (drum-snare) rings devised by Matas are not open to the same objections as the other members of that group, but they require to be boiled and otherwise specially prepared. Robinson's plates of fresh raw hide would seem to possess no advantages, and cer- tain obvious disadvantages, when compared with the plates cut from raw potato. Regarding the question of safety (aside from the factor of speed) in bowel -work by any method, two points are often neglected, and, as I believe, to the patient's peril. The first is the scraping of the peritoneum lightly, wher- ever adhesion is desired. This can be done in a few seconds, and should not cause bleeding if properly per- formed, but simply congestion ; and, because of this, a * As a matter of fairness. I wish to state that in a few instances these rings, on being recovered forty-eight hours or so after an unfortunate demise, have been found hard. It is pure guess-work trying to account for such an oddity, but it would seem most likely that in these patients, the bowels being thoroughly emptied, at or before the time of operation, of their semi-liquid contents, the catgut rings were not given a free opportunity to absorb water and become soft. 410 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Hernia. Hernia. more rapid and certain plastic exudate sealing the ap- posed peritoneal surfaces. Tips matter seems to the writer hardly open to argu- ment. Twenty cases in which rapid adhesion of tin- scraped peritoneal surfaces has occurred would prove nothing herein, when compared with one in which smooth and unscraped peritoneal surfaces did not become agglu- tinated after a prolonged contact. And such rare cases have been reported, although the surfaces were in contact many hours after being sutured. A light scraping, as Senn first demonstrated, will ren- der certain the formation of very firm adhesions within even three or four hours. The second point which, it seems to the writer, is com- monly neglected, although of the utmost value, is always to give the patient, even before the ancesthetic, as large a dose of morphine by needle as is compatible with safety to his life. In the first place, by following this procedure, much less ether or chloroform will be needed than if no mor- phine be used, and the consequent liability to vomiting, with its attendant risk of tearing out or loosening sutures, etc., is hence largely avoided. Probably, too, morphine is of some little value as a prophylactic against shock from the severe operation about to be undergone. I quite agree with Dr. John B. Roberts,1 who, in discuss- ing operative shock, says: "The preliminary hypoder- mic injection of morphine and atropine, always given a quarter or a half-hour before commencing anaesthesia, probably lessens the shock, and without much doubt diminishes the tendency to vomiting after etherization has been discontinued." In the second place, because of that morphine the bowel will be absolutely quiet, absolutely devoid of peristalsis, for hours afterward ; and this is just what we need : splinting the intestine for a short time. (SUPPLEMENT.) acknowledges the wisdom of its treatment, or better, pre- vention, by saline laxatives ; but submits that here (as dis- tinguished from ovarian or uterine surgery) exists an indi- cation of the strongest kind for the use of morphine. And in the great majority of instances of this particular class of abdominal work, that indication outweighs, in his judgment, the arguments on the other side. Further- more, it must be distinctly understood that the writer would not at all approve of continuing for an indefinite period to exhibit morphine, following bowel and stomach operations. When from ten to twelve hours have elapsed, then we can feel assured that firm agglutination has oc- curred between our lightly denuded peritoneal surfaces ; an adhesion so firm as almost to tear elsewhere rather than yield at that spot. And now, the liability, or even the possibility, of leakage being practically past, we should, if there be some tendency then or later, to abdominal distention, from this period post operationem, give hourly, small doses of saline laxatives, and perhaps also a glyc- erine enema. Under this line of treatment the effect of the morphine upon intestinal peristalsis is, within a few hours, overcome ; and usually quite readily so. And what, now, becomes of the five-inch plates of potato or turnip within the gut ? After twenty-four hours, or, if high in the intestinal canal, after perhaps even a somewhat lesser period of ex- posure to the heat and digestive fluids therein, the plates will readily yield to the waves of peristalsis, first permit- ting the freest passage of faeces through the four-inch lumen, and presently cutting out at the plate-stitches be- cause of extreme softening ; and they will be swept away. Their four stitches, if, as seems preferable, of catgut rather than silk, are soon after absorbed and also disap- pear. Let me now describe in some detail a method of lateral Line of union. Fig. 248. Peristalsis during these critical hours, before fibrin has sealed the spaces between our stitches, is fraught with such danger that to permit it is almost like inviting a possible leakage, by forcing out a drop, here or there, of liquid poison. Should we refuse morphine, we cannot depend for safety upon the paralysis, however commonly present, of the loop recently subjected to operation. For, al- though this portion may be quiescent for some hours, yet tlie whole alimentary tube above will not be so ! And semi-fluid faeces are being hurried along in surging cur- rents, thrusting themselves forcibly against the newly placed barriers, whether of thread or plates. Indeed, it is only because I also insist upon the use of morphine as stated that I think the use of plates abso- lutely safe without a complete row of stitches about them. During the hours while the plastic exudate from the lightly scraped peritoneum is sealing, more firmly than any sutures could seal, that wound, the intestine is as devoid of motion as if dead. Let me here interpolate the remark that if the patient's general condition were excellent, and the abdominal cavity had not been very long opened (not otherwise), I should, as precaution upon precaution, sew once entirely around the plates a running Lembert, or some similar stitch, such as that elsewhere illustrated (see Fig. 248). And because of the smooth tension made possible by the plates, this sewing could be completed quite a little sooner, as well as more safely, than otherwise. In deal- ing with the lower half of the ileum, the danger of an occasional complete penetration with the needle is a very real one, save in expert hands-so very thin-walled is this part of the intestine. To return to the question of a morphine-splint: the writer is not ignorant of the views upon peritonitis held by Lawson Tait and many other surgeons. The writer anastomosis with plates, as practised by me since the winter of 1890-91 (in entero-enterostomy only). In such operations-not very rarely needed, following, for in- stance, dead gut from a strangulated hernia, or resulting from tearing into the alimentary canal during separation of old adhesions in major gynecology-the technique about to be described possesses two advantages over any other, with plates or without them. These are : (1) Op- portunity to test by the water test the perfection of the line of suturing. (2) Entire avoidance of possible infec- tion of the line of intended adhesion by repeated acci- dental dragging out, necessitating tucking back of the cut bowel-edges, which are none too thoroughly disin- fected at the best. Regarding the first point (the hydrostatic test), it is with surprise that I have noted how little it has received at- tention. If the operator means to depend solely upon suturing for securing union, one would suppose that from a half minute to a minute more spent in proving such stitches evenly and properly tight would be anything but wasted. Indeed in the bladder this is commonly done. The error lies in closing the bowel-ends first, and then making the lateral anastomosis, with its surrounding lines of suturing (or plates). Such technique of course pre- vents the water-test. If instead, as suggested by me, these steps be reversed, then by running a stream of warm water into one gut-end, through the new lateral opening, and out of the other gut-end, how easy it is, in a moment, to notice a point of leakage and to correct it by an addi- tional stitch ! The tapes or clamps, always applied a few inches away, of course prevent the water from taking another path than that desired. And then the bowel-ends are to be inverted and closed, instead of this being made the first step of the operation. And how much more pleasant, so to speak, for the 411 Hernia. Hernia, REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) patient, to have a stream of leakage discovered at this time rather than subsequently upon the autopsy-table ! As to the second point in technique mentioned, let me quote from a recent article by Dr. Robert F. Weir :1 In speaking of anastomosis he says : "I had already called attention ... to the ten- dency of the opposed intestinal incisions to slip out beyond the rings. This also occurs with Senn's plates, and, in fact, is common to all of these contrivances, so that special care in their use is demanded, and often the es- caping portion requires to be tucked in between the plates more than once before the restraining outside sutures are finally inserted." Had Dr. Weir used the method about to be described, he would not have had this complaint-and it is a just one-to make, regarding the usual methods either of suturing or of using plates. By the writer's plan, any and all sewing to be done about the new opening is completed before that opening is made, and for just the reason given. Preparalion of Plates.-These are cut one-third of an inch in thickness, and on an average five inches, or nearly, in length. Their width is not great, in order that they may slip easily into the bowel. At first I made them too wide. ' A very narrow slit is all that we need. The powerful circular muscles cause the cut bowel-edges in the slit to retract so that they do not touch each other, and the prompt infection of these edges by faeces prevents the likelihood of their adhering even if they did touch. The slit should be nearly or quite four inches in length. Of course this length is an added safety (immediate as well as remote), because the freer the passage of faeces when that begins, the less the strain on the integrity of the line of union. Each plate is armed with four coarse catgut threads, not over nine inches long, to avoid tangling. The threads have a large knot, and before penetrating the plate we sew through a scrap of rubber cut from a drainage-tube, or, lacking this, a minute bit of cloth ; this to avoid cut- ting through. If no running line of sutures about the plate is contemplated, it will be best to use sir instead of four threads in each plate. Use a round, straight sew- ing-needle, the eye of which (to avoid accidental un- threading) should be a close tit for the catgut. The needles should all have their points buried in bits of potato, each about the size of a pea. If time permits, immerse the plates for a half hour in warm water, to make them more rigid and hard. Method of Using the Plates.-Assume that the tapes or clamps are applied, and the bowel properly cleansed out by irrigation. Now : (la) Seize a needle with the needle-holder so that it shall be in the long axis of the holder. Begin with the one marked A in the accompanying diagram (Fig. 249). Pass the needle several inches (about seven, in operations upon the small intestine) into one of the open gut-ends, and when the place is reached at which, in the judgment of the operator, it should come through, detach the bit of potato from its point with the fingers, seizing it from without, and then pass the needle through and out. The little piece of potato will take care of itself, dropping to the bottom of the bowel; it is insignificant. The spot at which the end sutures, A and D, should escape, is one directly opposite the mesenteric attachment; that is, as far as possible from the mesentery. Now (after A) pass needles B and C in the same way. After each thread is passed, it should be held by an assistant tense against the wall of the gut on the side where it belongs, and the next needle should carefully run along the opposite wall; this to avoid tangled threads. Pull lightly on threads A, B, and C, while pushing the plate from behind, drawing it thereby into place within the intestine. Push rather than pull, to avoid oblique tension on the threads and possible cutting of the plate. Next pass D, and draw it also taut. Go through the same steps with the other plate and the other gut-end. Always leave at least a full inch and a half between the plate-end and the gut end, in each in- stance. (1Z>) The following alternate method of introducing the plate and its threads is, so far as the suggestion of the shorter needles is concerned, due to Dr. H. M. Hall, of Seattle, Washington. The plate is to be armed with four (or six) short, straight, round (so-called gynecological) needles, only one-half to two-thirds of an inch long. Their threads need not exceed four inches in length. (In other respects they are prepared as in the other plan.) These needles are inserted into the plate at their proper places, and their points made to penetrate just to the thickness of the plate, but no further. (These prepara- tions are, of course, made before the operation begins.) The plate thus prepared is laid, needle-hilts downward, upon a thin, long strip of hard wood, as wide as the plates -a piece of cigar-box, for instance,-and both are in- serted together a sufficient distance into the intestine, from its open end. By placing the four short plate- threads each on its own side of the wooden strip, tan- gling during the insertion is avoided. It is now the work Fig. 249.-A plate in place and ready to tie to its fellow. of but a moment to press upon the bowel overlying the plate, and thereby force the needles through at exactly the right places. Their points are seized by the needle- holder, and each is drawn through until its thread is tense. By this technique, which I prefer to the other, both plates may be inserted and their threads tied in less than two minutes. The former technique would be necessary where only ordinary needles are procurable, i.e., in emergency work. (2) Wipe off the threads with a cloth wet in some an- tiseptic solution. Of course, this is not essential, but is a safeguard. (3) Scrape lightly but thoroughly with a scalpel the surfaces to be coaptated ; this also includes the ends to be inverted. (4) Tie the four anchor (plate) threads each to its ap- propriate fellow, being careful to draw snugly but not to make extreme pressure. Tie first the threads on the lower (under) side of the seat of operation. Sloughing is of course possible if no care is used ; though because of rapid softening of the plates, inside of twenty-four hours, it is less a danger even in careless hands than if bone-plates were used. Experience proves that it is of little moment in which directions the open ends are pointed, before this ligation of the threads ; that is, whether in opposite directions or not. (5) Take one square Lembert stitch at the plate-edges, opposite to and concealing each of the four (or six) plate- stitches. This is precautionary. In the event of a drop of pus forming where a plate-stitch penetrates the gut (infection by capillarity), that pus, like any other fluid, 412 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Hernia, Hernia. would move in the direction of least resistance, and, the softened plates not opposing, would be obliged, by this square stitch, to re-enter the intestines at the cut edge. As an alternate choice-and perhaps preferably to such interrupted stitches-we may, as a matter of convenience, begin the entire operation by a straight, running line of suture five inches long, between the loops to be joined, and about one-fourth inch from their mesenteric border. This line may, if desired, be continued and carried completely around the plates, after these have been tied together. The stitches are rapidly inserted, being no more than three to the inch, and are preferably of the kind illustrated in Fig. 248. The surfaces are smoothly coaptated, and sloughing, from over-tension, is hardly possible ; because the pressure from any stich of this continuous thread is not met by that of an opponent across the line of union. Just as in suturing without plates, about the opening, great care should here be exercised lest the surgeon sew too deeply and penetrate into the bowel. As has been previously remarked, the smooth, though moderate, tension about the plate-edges permits very rapid and ac- curate sewing. If the patient were in real and im- mediate jeopardy, I would advise not stopping for sutures at all ; but, as the end of the bowel technique, to wrap (SUPPLEMENT.) the slit in the plate, and thus be exactly guided. We should make as long an anastomotic opening as the plates will allow. The strip of wood opposite, which has pre- vented cutting too deeply, should now be removed. Should bleeding follow, of more than trivial degree, it coidd easily be controlled by forceps. As stated, the incision is open to inspection-from either end-with a little care. Also, the potato is elastic enough to permit, without harm, a temporary widening of the slit by any blunt means, for greater ease in seizing a vessel. However, annoying bleeding is very unlikely to hap- pen, both because the point at which the bowel is di- vided is that farthest from the mesentery, and, therefore, where the vessels are smallest ; and, also, for the reason that the moderate pressure of the plates would tend to check it. (8) Irrigate, under very gentle hydrostatic pressure, closing the outlet end with finger and thumb for a few moments. The line of suture, or union, should not leak, if contact is properly made. (9) Invert and close the ends, each with one running line of suture, as in Fig. 248. The free end is seized with dressing-forceps and turned in until the plate is felt. The forceps holds it thus inverted while the stitches are placed. The long intussusceptum, far from being the danger that was once feared, proves a decided protection against leakage. • A few needles, temporarily thrust through the intussusceptum transversely, prove of aid in preventing the rolling out of a part of the end during sewing. (10) Take a stitch or two between the blind ends and the bowel, against which each should rest, first scraping lightly. This sewing prevents possible forcing of an- other loop into this angle, with resultant undue tension on the stitches at the plate-ends ; an accident which led to leakage in one of my first experiments on dogs. It is also a safeguard against intussusception into the new opening, which has been observed by one worker in this field (Robinson). Of course, this point in technique is as applicable to lateral anastomosis without plates as to that with them. Finally, of course, we remove the clamps or tapes from the bowel on either side of the region just subjected to surgical treatment. For the sake of clearness, ten successive steps in per- forming the operation have been numbered and itemized ; but it will be noted that half of these are not peculiar to this, or any other plate method, but are just as advisable when suturing alone, without such aids, is attempted. I know of no briefer, no safer plan. It is my hope that the points herein discussed, and which the reader may not heretofore have put in practice, will be accorded an unbiased trial. They are the fruit of a number of years of work in this line ; and the conclusions have not been drawn without time for consideration. In discussing anew the subject of radical cure of rupt- ure, the writer wishes to call attention to the appalling frequency of hernia, as marking the importance of the subject, and therefore demanding of every medical man his most earnest study. The tables of Dr. Baxter show that not less than three million people in these United States are so afflicted ; and the recent and thorough work of Dr. H. O. Marcy, in which these figures are quoted, does not deem them ex- cessive. Malgaigne estimated that in France one in every thir- teen males, and one in every fifty-two females, are rupt- ured ; including both sexes, one in every twenty. Since my former article was published there has been a most striking change in the mental attitude of the surgical world-due to published statistics - upon the question when to operate upon hernia which is not stran- gulated. It is not too radical a statement to say that, to-day, most surgeons advocate operation for radical cure sim- ply because a patient has a hernia. If this is true, it must be for the reason that surgeons not only think that radical cure is now regularly to be expected following operation for that purpose, and that Fig. 250.-The suturing about the platesis completed ; the anastomotic opening is being made ; in short lines the row of sutures is indicated roughly; a, block of wood, to cut against. (When properly tightened, the sutures cannot easily be seen, of course.) Straight scissors, with one sharp point, should be substituted for the knife in this illustration. around the plates at their line of union a long strip cut from the omental edge. A preliminary cobbler's ligature applied to the omentum will avoid loss of blood here. This, by actual time measurement, may be done in one minute. Such an omental strip is shown by Senn to be almost sure to live, though completely detached, for it becomes firmly adherent where it rests, and is a decided additional safeguard against possible leakage, with conse- quent infection. (6) Run into one open gut-end a thin strip of wood as wide as the potato-plate (a, in Fig. 250). This is to cut against. (7) Now we make our opening through the opposed and sealed gut-walls. I strongly advise for this purpose straight scissors, with, as usual, one blade sharp-pointed, instead of the bistoury indicated in the illustration (Fig. 250). If desired, by a little trouble, the bowel-end may be so held as to render the line of incision visible through- out its whole length ; but this is hardly worth while, as with the scissors one can very easily feel, before cutting, 413 Hernia. Hernia. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) failures are indeed few ; but also such advice must mean that, whereas once a patient herein jeopardized his life, now, from thorough asepsis, the operation has become practically free from all danger ; as much so as amputat- ing a finger, for instance. The following figures will put the reader in position to judge for himself upon this matter : Bassini has published 251 cases, with but 1 death, from pneumonia, when the wound had aseptically healed. Svennsen and Erdman, at the Sabbatsberg Hospital, 200 operations, no deaths. Lucas-Championni^re had a single death among his 266 cases ; cause not stated. Kocher, 119 operations, 1 death from pulmonary embol- ism on the fifteenth day after the operation, when the wound was completely healed. Macewen has lost 1 pa- tient, from scarlet fever, out of his 98. Roswell Park, 85 cases, no deaths. Halsted, 83, no deaths. It must ever be borne in mind, however, that such safety as this implies absolute surgical cleanliness, and this is no slight acquirement. This is a true coeliotomy, for by any and all modern methods of attempting radi- cal cure of hernia the peritoneal cavity is opened in order to ascertain accurately whether the sac is empty or not. Let no man dare attempt it until he has made sure by lesser operations, in safer regions, that he can always command asepsis ; that wounds of his own making shall regularly heal without suppuration. Regarding the question of success in effecting radical cure, Bassini reports recurrences among but 5 patients in 251 cases of unincarcerated inguinal hernia ; although-■ be it remembered-the period over which many of these cures extend is far too short to permit of our consider- ing this report a final one. In one of his recurrences Bassini had not removed the sac as usual. In another he trusted entirely to catgut sutures. In two others there was not strictly a recur- rence, but simply an abnormal bulging at that part of the abdomen. Kocher records 76 cases with but 2 recurrences ; cov- ering a period of from four and a half years down to less than a year (in a few cases). Halsted has recently told me that from the time in 1889 when he began his present technique, until now, in 1893, he has had no recurrences among his 83 cases. It would be a waste of time to multiply figures here. The methods which are now generally regarded as most reliable are of such recent introduction that the true re- sults as to radical cures-those covering periods of not less than three, and. better, five years as a test-are not yet obtainable save in a very limited number of cases. However, it is extremely instructive to learn what not to do ; and a study by Dr. W. T. Bull,* of a series of forty cases, inspected at periods varying from a few months to six years, is of great value herein ; and his frankness in reporting undesirable methods, which he doubtless no longer uses, is a virtue all too rare. He says : " Twenty of this number had been operated upon by excision and ligation of the sac ; the remaining twenty had excision and ligation of the sac, together with suture of the pillars of the external abdominal ring. . . . By both methods, in all varieties, there were sixty per cent, of cures, and forty per cent, of failures." In a second paper he states that only about half his wounds healed primarily ; slow-healing drainage-open- ings being generally the cause of this. His drains were of rubber, usually. His catgut sutures were prepared by saturating them with Kocher's oil of juniper plan. In this latter paper the importance, by any method, of obliterating the sac is emphasized. He states that every case operated upon by him after the method of Heaton -with injection of a solution of white-oak bark into the inguinal canal-has now relapsed ! Dr. Bull insists, as do Macewen and Lucas-Champion- niere, on the use of a truss "from the time the patient leaves his bed. " In this respect he differs from Bassini's customary prac- tice, from McBurney, from Wolfler, and, in most cases, from Kocher. I cannot help feeling, however, that it is the part of wisdom to give the newly healed wall a light support for a few weeks by a truss (unless, indeed, the patient has been kept about six weeks in bed). If this were permanently to be worn, however, as a necessity, that would imply no true and radical cure, and should not properly be classed as such. In Vol. III. the reader will find discussed certain methods-mostly antiquated-of attempting radical cure. In my former article, in Vol. VIII., are yet other stud- ies upon this subject, giving especially the plans advo- cated by Drs. Czerny, Banks, Nussbaum, Sewell, Riesel, Barker, Ball, Macewen, and McBurney. Since the final volume of the Handbook appeared, various additional methods have attained prominence. These from their originality, or else their intrinsic value, deserve a per- manent record, and will presently be discussed here. It is noteworthy that two points in the technique of operation upon the inguinal canal have of late years re- ceived especial care. The first of these has reference to strengthening the weak rear-wall of that canal, which, for an inch or so to the inner side of the deep abdominal ring, is composed of nothing more resisting than transversalis fascia and peritoneum. Obliteration of the sac, alone or combined with closing the external (superficial) abdominal ring by sutures, will still leave this a weak spot. And if once the bowel begins to re-enter the canal, inevitably the wedge principle will at length permit of a complete re- turn of the hernia. Therefore it is that most surgeons to-day so carefully sew together the deep parts, hoping to prevent, by a tight, deep ring, and a strong, musculo- aponeurotic rear wall of the canal, the least admission of the thin end of the wedge. The second of these points just referred to is the fact that an element of weakness in our operations is the presence of the spermatic cord running through the canal. If we could prevent this, then the canal could be solidly and completely closed against the invading bowel. In the middle ages, as Koeber has recently reminded us, surgeons used to castrate their patients, and remove the corcl, as a simple means of solving this problem. lat- erally, that was cutting the Gordian knot with a ven- geance ! and led to a popular outcry against such sur- gery. Of late, certain operators have insisted upon the importance of this principle; and, without castrating, have nevertheless succeeded by various plans in perma- nently emptying the inguinal canal of the spermatic cord. Drs. Halsted, Fowler, Postempski, Wolfler, and Frank, are instances in point. Among so confusingly long an array of methods the reader may wish to know which are at this time regarded by the profession with most favor. I think I am safe in replying that to-day Bassini's method stands first in popularity among surgeons, and Macewen's second. Others are regarded as either more complicated, or as yielding a smaller percentage of true and permanent cures. Bassini's Method.-This was first described by Dr. Eduard Bassini, of Padua, at the Congress of Italian Sur- geons held in March, 1888. He reported at that time two hundred and sixteen cases. The following, which I have carefully compared with his own more recent ar- ticle,* is taken very largely from Dr. S. E. Milliken's clear description. Operation.-An incision is made, beginning at the spine of the pubis, and extending upward and outward. The upper extremity should be about two inches internal to the anterior superior spine of the ilium ; everything is divided down to the aponeurosis of the external oblique. The latter is incised over a grooved director, passed into the external abdominal ring, superficial to the hernial sac and cord structures, and then running outward even a lit- tle beyond the deep ring. To expose this ring properly, the aponeurosis should be cut for about two or two and one-half inches. The upper flap is now freed from the * Read before the New York State Medical Association, 1889. * Archiv. f. klinische Chir., Berlin, 181)0, vol. xl. 414 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Hernia. Hernia. underlying structures and reflected toward the median line until the conjoined tendon, composed of the internal oblique and transversalis muscles, is brought well into view. The lower flap or segment of the anterior wall of the inguinal canal is next dissected from its underlying fascia, until the shelving edge of Poupart's ligament is exposed. These flaps being held back by retractors, the next point of technique is to hook up with the index-fin- ger the cord structures as they pass over the spine of the pubis, and lift them and the hernia out of their bed. This blunt dissection should be continued until you have reached the deep ring. The hernial sac, without reduc- ing its contents, should now be isolated ; this is best done by dividing the overlying structures on a grooved direc- tor until you have exposed the bluish-gray thickened membrane over a small area. This coat is raised with a small pair of rat-toothed forceps, that the hernial con- tents may not be injured when the»opening is made. The entrance into the peritoneal pouch should be mani- fested by the escape of a small amount of serum, un- less it be an incarcerated or strangulated hernia, when the fluid may be tinged with blood. The contents hav- ing been examined, all adhesions that may exist are tied off with fine catgut. Large masses of omentum should be ligatured, not necessarily at the most distal point, but when passed through Poupart's ligament, must not in- clude more than one-quarter of an inch of tissue from the edge. The relaxed posterior wall of the canal, composed of the transversalis fascia, should be included in the upper grasp of the needle, along with the conjoined tendon. From four to six sutures, inserted in this way, will be sufficient to unite firmly the musculo-tendinous struct- ures, forming a new posterior wall for the canal. In this reconstruction care must be taken not to constrict the tissues of the cord. The first two sutures, close to the pubes, include also the border of the rectus muscle. All of these stitches should be made to include a large amount, say an inch (two to three centimetres), of the internal oblique and transversalis muscles (Fig. 252). Third Step.-The formation of the anterior wall of the canal is accomplished by suturing the recently divided external oblique aponeurosis, continuously, with fine cat- gut (Bassini uses silk), throughout its entire length (Fig. 253). This re-establishes the valve-like condition of the inguinal canal. Finally, the skin wound is closed with interrupted sutures after the insertion of a small glass drainage-tube, from two to two and one-half inches long (Bassini commonly does not use drainage) into the lower angle of the wound, and the following dressing is ap- plied : Iodoform powder (or what is preferable, fine crys- tals) should be spread along the line of suture and around the drainage-tube; on this a strip of Lister protective or rubber tissue, two inches wide and long enough to overlap one inch at the ends, a perfora- tion being made for the drainage-tube ; moist iodo- form gauze, six layers thick and sufficiently long and broad to overlap the wound two inches on all sides, also perforated for the drainage-tube ; next, a larger compress of moist sublimated gauze is placed over the upper part of the wound and held in position by a two-inch strip of surgeons' rubber adhesive plaster, extending almost entirely around the pelvis. An in- tervening layer of rubber tissue should be used to pre- vent infection of the wound from the plaster. Over the drainage-tube is placed sublimated gauze, very loosely distributed ; next, cotton, and lastly it should be covered by rubber tissue, one foot square, which is per- forated for the penis and held in position by a spica band- age. The advantages of having the above dressing are several: First, infection from without is prevented by the rubber tissue, which is most external, and by the small strip which is in immediate contact with the skin. By means of the adhesive plaster alone can perfect retention of the deeper dressing be accomplished. However, the most important point in this detailed dressing is the ar- rangement of the drainage-tube, which should be re- moved at the end of thirty-six or forty-eight hours by sim- ply taking off the external dressing and not disturbing that which is in immediate contact with the wound. After the removal of the drain the point of exit should be well dusted with iodoform, covered with loose sublimated gauze, and a new protective dressing applied. Where animal sutures have been employed the wound should heal under one dressing, even in cases of strangulation. Perhaps two to three weeks in bed would be the average duration. Some have been allowed to get up as early as on the tenth day. No truss is advised.* Method of Dr. William S. Halsted.2-This plan agrees in most essential respects with that of Bassini, but in ad- dition so deals with the spermatic cord as to remove it -by a plan presently to be detailed-permanently from the inguinal canal, at the same time reducing its size. Consequently there is made-1, a new posterior wall to the now obliterated canal ; 2, a tighter deep ring, the Fig. 251.-First Step. Bassini's Method of Operation for the Radical Cure of Hernia. Fig. 252.-Second Step. Fig. 253.- Third Step. where the greatest constriction exists, and it is advisable to use the transfixion method. Occasionally it occurs that the obstacle to reduction is a fibrous constriction, situated within the deep ring. That is, however, easily detected at this stage of the operation, and can be divided without danger by incising upward. Returning to the treatment of the sac, it must be completely separated from the cord and other adherent tissues, to a point well within the deep ring, and a moderate amount of traction made uniformly at all points, which is best accomplished by a series of artery forceps held by an assistant. (The blunt dissection of the sac from the cord and other structures is best be- gun at its neck.) Ligation of the sac with catgut is now done, also, by the transfixion method, having first twisted it at its neck. The sac is excised, leaving the pedicle about a fifth of an inch (one-half centimetre) in length, which immediately retracts into the abdominal cavity. If the hernia is very large, and thus the neck and opening of the sac are broad, Bassini applies, besides the ligature mentioned, a glover's suture, for security's sake. When a congenital hernia exists, the sac should be cut off one inch above the testis. The reforming of the tunica vaginalis is of no impor- tance, and the prevention of hydrocele will thus be at- tained. This completes the first step of the operation (Fig. 251). Second Step.-The upper and lower flaps, composed of the segments of the aponeurosis of the external oblique, being well retracted by sharp hooks, the cord structure held out of the operative field by a blunt hook or the fin- ger of an assistant (if necessary we may lift the testicle out of the scrotum in doing this), the conjoined tendon of internal oblique and transversalis muscles, on the upper side, is now united to the shelving edge of Poupart's ligament by a series of interrupted chromicized catgut or kangaroo-tendon sutures. Bassini prefers silk sutures. The Macewen blunt-pointed needle accomplishes this ad- mirably, but any curved needle will do. The needle, * The writer, while preferring Bassini's technique in most respects, would suggest as a plan worth trying, the complete and permanent emptying of the inguinal canal by a method which he has not seen here- tofore described. This consists in drawing the testicle, by its cord, out of the scrotum and then placing both cord and testis in the loose cellular tissue behind the inguinal canal, where they are to remain. Over them the conjoined tendon is sewn to Poupart's ligament as just described, etc. The advantages of having no canal and no inguinal rings is obvi- ous, and true castration is avoided. 415 Hernia. Hernia. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) latter in a new situation ; and 3, a much smaller sper- matic cord. Dr. Halsted published his method in the autumn of 1889, eight or nine months before that of Bassini ap- peared in print; although the latter surgeon, as heretofore stated, read a paper upon his method, in Italy, in 1888. Both began work upon a clear and definite new principle in hernia operations-Halsted upon two new principles -at about the same time. The priority is commonly, under such circumstances, given to the paper first appear- ing in print ; and should therefore rest with Halsted. The following is his description of this plan : 1. The incision begins at the superficial abdominal ring, and ends one inch or less (less than one inch in children) to the inner side of the anterior superior spine of the ilium, on an imaginary line connecting the anterior superior spines of the ilia. Throughout the entire length of the incision everything superficial to the peritoneum is cut through. 2. The vas deferens, with its vessels, is carefully isolated up to the outer termination of the incision, and held aside. 3. The sac is opened and dissected from the tissues which envelop it. 4. The abdominal cavity is closed by quilted sutures passed through the peritoneum at a level higher by one and a half to two inches, than that of the so-called neck of the sac. 5. The vas deferens and its vessels are transplanted to the upper, outer, angle of the wound. Before doing this, all the superfluous veins of the cord (all of them save one or two) are excised ; thereby reducing the size of the cord, perhaps three-fourths. Consequently the new deep ring will be much smaller than otherwise-an evident advantage. 6. Interrupted, strong silk sutures, passed so as to in- clude everything between the skin and the peritoneum, are used to close the deeper portion of the wound, which is sewed from the crest of the pubes to the upper, outer, angle of the incision. The cord now lies superficial to these sutures, and emerges through the abdominal mus- cles about one inch to the inner side of the anterior su- perior spine of the ilium. 7. The skin is united over the cord by interrupted stitches of very fine silk. These stitches do not perforate the skin, and when tied they become buried. They are taken from the under side of the skin, and made to in- clude only its deep layers-the layers which are not oc- cupied by sebaceous follicles ; this to avoid possibility of suppuration by stitch-infection. Dr. Halsted has for more than two years sewed most of his wounds in this way. The method was suggested to him by his experiments on dogs. He thinks that it is very difficult, and perhaps impossible, to disinfect the skin of a dog, and believes that pyogenic organisms may occasionally be present in the sebaceous follicles of the skin. At any rate, he had repeatedly observed pus in the suture-holes of the perforating skin-stitches, and could not with any certainty secure primary union of the skin- wounds of dogs until he had resorted to this subcutaneous method of sewing the skin. Dr. Halsted states, in this connection, that whether or not it is possible or easy to disinfect absolutely the hu- man skin, he had been much impressed with the fact that skin-sutures not infrequently suppurate, even in wounds sewed by the most careful surgeons in this country and abroad. He has thought it advisable, there- fore, to test for a time the subcutaneous, buried skin suture. 8. One or two small, short, gauze plugs are used as wound drains. The After-treatment.-The gauze plugs are removed at the first subsequent dressing - usually at about the seventh day. The patients are allowed to walk about on the twenty-first day. A few cases have suppurated. These were laid wide open at once, and the stitches divided. Should the hernia return in these cases, it could not, of course, be counted against this method. In one instance of this nature, after the wound had been freely opened again, urine at length discharged for a time by this route ; showing that one or more of the innermost stitches had pierced the bladder-wall-a most instructive case. It will be observed that whereas Bassini uses three rows of sutures,-sewing the external oblique aponeurosis as a layer by itself,-Halsted has but two rows, including every structure between the peritoneum and skin in his first, or deep line of stitches. The object of making the new deep ring further out- ward than before is in order that the vas deferens may pass through broad, raw surfaces, where the muscles are thick, and be thereby snugly embraced in its new situa- tion. Method of Dr. J. Lncas-ChampionniereA-1. It is nec- essary to remove absolutely the sac by a ligature at the highest possible point, leaving not even the slightest in- fundibulum in the, peritoneum opposite the deep ring. To accomplish this we must dissect up the peritoneum wall above the neck of the sac. 2. In the second place we should oppose to the return of the hernia a heavy, firm cicatrix, the result of the very free dissection to expose the peritoneum beyond the utter- most part of the neck of the sac. The whole length of the inguinal canal is, of course, split open in order to do this. The larger the operation-the more extensive the dissection,-the firmer this scar will be. These deep parts are sewn together by deep sutures. (No more exact state- ment than this is given as to where the stitches are placed.) 3. It is important, where omentum is present in the sac, to treat it boldly. In this respect the author claims that he has done what no surgeons have ever done before him. He pulls out of the abdomen, using "energetic effort," the omentum, when this has been a part of the hernial protrusion, and ties off and cuts away all he can. The consequence of this is to increase the empty space within the abdomen, and to remove from the inguinal region any remaining part of the omentum. In both respects this is desirable, and the omentum no longer plays its customary role in provoking a relapse. " If I consider my method of radical cure superior to all others which I have studied, it is because I believe that other surgeons have not taken the care to obey all of these three fundamental rules. . . " The most interesting characteristic of the operations which have given the best results is the presence, subse- quently to the operation, of a cord of cicatrix, volumi- nous and hard, extending from the scrotum up into the abdomen, along the region formerly occupied by the hernia. . . . The cicatrices really powerful, truly solid, are those made not by a suppurative process but by primary intention." In the sewing he uses buried sutures : not to make a reunion of the pillars, in the proper sense of that word, but to fuse together and solidify all the deep soft parts resulting from the free dissection. To do this, he uses stout catgut. Sometimes the same thread, after having been tied, is repassed and its ends are finally tied together after having been made to surround a fresh portion of the soft parts. These sutures may be placed either in single or double tier, from one end of the wound to the other. The bar- rier is completed by suturing, over these deep parts, those more superficial, i.e., the cellular tissues situated super- ficially to the muscular wall. This suture is always made with strong catgut, tying invariably three times, against slipping. An interesting point in the technique is that in those cases in which the anterior aponeurotic wall of the canal seems quite lax, after removing the sac, the author over- laps the lips of the cut external oblique aponeurosis, sewing them with the deeper parts, together in this posi- tion, and thereby making the canal a tighter one. Fig. 254 shows his method of tying off the sac. He insists, repeatedly, upon this chain-method. (To the writer of this review this device seems to possess no ad- vantages over the more simple and easily applied " purse- string" or " tobacco-pouch " suture described by Gerster, 416 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Hernia, Hernia. and mentioned by me in the article on hernia in Vol. VIII. Furthermore, by the latter plan, the stump of the sac is not entirely cut off from its blood-supply, which is certainly a point worth considering.) " Among all known ways of operating for radical cure two only seem to me more interesting than the rest, viz., those of MacEven* and of Bassini. I do not much be- lieve in the efficacy of the folding up of the sac, thereby constituting a kind of stopper of defence to the hernial region, as MacEven teaches. But, to accomplish his procedure, it is absolutely necessary to carry the dissec- tion of the sac very high, even into the belly; and in this his procedure resembles mine. One is assured there- by that, at least, because of such high dissection, the sac will be completely abolished, and the cicatrix due to the fusion of the freshened surfaces will be both large and long. "As for the procedure of Bassini, I do not attach much importance to the reconstruction of the inguinal canal which he thinks to make around the cord. But to than otherwise ; and thus less dead tissue would be left to decompose. Method of Drs. Weir and Trendelenburg.-These sur- geons, at nearly the same time, attempted radical cure by the device of opposing the return of the hernia (after tying off and cutting away the sac) by placing in the in- guinal canal a plate of fresh bone. It would probably be a mistake to suppose that either surgeon regards the plan favorably to-day. Indeed, Dr. Weir quite recently spoke to me of it as having been merely .tentative. He used it in two cases ; in one the operation was a failure, the bone having shortly to be removed ; in the other the result was unknown. Dr. Weir* used a piece cut from the scapula of a recently killed dog. A semicircular disk was cut out of this plate at its upper edge, to avoid pres- sure here upon the cord running over it. Several small holes were also punched in the plate, whicli was then disinfected, placed in the wound, and covered up. I mention this method simply as standing for a prin- ciple-that of opposing to the return of the bowel some resisting solid mass tilling, and yet foreign to, the in- guinal canal. A very old method of attempting this is to plug the canal with the patient's testicle of that side, which has been forced up in place and held there by sut- ures outside, or by prolonged pressure, inducing adhesive exudation. Another of these devices was the introduc- tion of a gelatine cylinder covered with isinglass (Eel- mas). The open treatment of the canal during the seven- teenth and eighteenth centuries, permitting it to become filled by organic material-granulation tissue-of course comes under the same head, as does also the implantation therein of a skin-flap (Dzondi), or of the invaginated scrotum (Gerdy). This principle is not now approved by those best qualified by experience to decide, and cer- tainly the percentage of recurrences observed after this mode of operating is not encouraging. Method of Dr. Theodor Kocher f-In describing this I have used, in the main, his own language. The skin and superficial fascia are divided over the inguinal canal, and laterally outward, in the direction of Poupart's liga- ment (Fig. 255). At the superficial ring the cord and sac are exposed. By lifting these toward the light the bor- der of even a very thin hernial sac can be recognized. This is then carefully dissected and isolated from the structures of the cord until it can be strongly drawn down and its pedicle exposed. (Kocher does not mention it, but of course the sac is opened, for obvious reasons.) The index-finger of the left hand is now introduced into the inguinal canal, and laterally from the deep in- guinal ring a small opening is made through the aponeu- rosis of the external oblique muscle (again see Fig. 255). A slender pair of artery forceps is passed through this opening and through the lower muscular fibres of the internal oblique and transversalis muscles, following the left index-finger as it is withdrawn through the in- guinal canal, and finally out of the superficial opening (Fig. 256). With the same instrument the isolated sac is grasped and drawn through the canal and through the narrow opening in its anterior wall, that is, in a lateral direction from its upper end. The hernial sac now hangs through a narrow opening above Poupart's ligament (Fig. 257). It is drawn out as much as possible, and then, as Heliodorus did, and as Ball has recently advised, it is energetically twisted. The sac is, however, not removed nor ligated, but is strongly drawn down and laid over the outer surface of the aponeurosis of the external oblique muscle and against the superficial ring ; in other words, running superficially to, and in the direction of, the inguinal canal. By this tension on the sac, as is shown in Fig. 258, the anterior wall of the unopened inguinal canal, and espe- cially the tense aponeurosis of the external oblique muscle, are pressed inward and backward into a gutter. As the twisted sac lies tensely stretched in this manner, deep silken sutures should be applied, beginning at its upper and outer extremity. These are passed above the twisted sac, through the fibres of the aponeurosis of the external oblique muscle and the underlying muscle-fibres of the internal oblique and transversalis, through the Flo. 254.-Method of Lucas-Championniere in Tying off the Hernial Sac. A represents the incision made for the purpose of ascertaining whether the sac is empty or not. accomplish that end he opens freely that canal, in front and behind, and carries high his dissection of the serous sac. Necessarily, then, he will obtain a result analogous to that which I recommend-a free and thorough sac- removal and a very big cicatrix. That' is the reason of his success." Dr. Lucas-Championniere claims 266 operations upon hernia, of which 221 were in men. He states that he has had only one opportunity to operate a second time upon one of his own cases. A propos of his radical teaching with reference to thorough excision of omentum forming a part of the hernia (quoted above), it is well to appreciate and guard against dangers due to defective technique in carrying out this procedure. Dr. W. T. Bull4 has classified these under three heads, as follows : 1. Bleeding from inefficient ligature. 2. Damage to neighboring intestine, which may be in- cluded in a carelessly applied ligature. Such a nipping lasting only fifteen minutes before its discovery and cor- rection, has in one published instance led to a slough, perforative ulceration, and death. 3. Inflammation and abscess of the omental stump : of course to be avoided by the strictest asepsis, and sterility of the ligature-material, of whatsoever kind selected. As to the first of these three points, Lucas-Champion- ni^re advises, just as in dealing with the sac, his chain- ligature (see Fig. 254). Bull ligates in sections, no one of which is of as great volume as the finger. It is as wTell, as an additional safeguard, to tie any large vessels seen on the face of the omental stump. The latter, with but small masses embraced in the loops of ligature, may safely be cut much nearer to the point of constriction * There is no letter w in the French alphabet. This is Dr. Macewen's misfortune. 417 Hernia. Hernia. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. twisted hernial sac itself, and then including the liga- ment of Poupart beneath it. We must be careful not to sew into the external iliac vessels, and the finger-tip in- troduced deeply into the canal, and crowding back the spermatic cord, is our guide as to the deep structures em- braced. These sutures-five to seven or more-bring together also the pillars of the superficial ring, to which the lower end of the hernial sac is fastened. In case of a long sac, all that extends below the superficial ring is cut away. The operation is more certain when the upper suture can be deeply applied laterally from the place of entrance of the spermatic cord into the abdominal wall. In tying the sutures, begin with the highest first. The finger-tip, once more introduced within the canal, is our guide as to when the deep parts are brought properly to- gether thereby. Finally the skin-wound is sutured. No drainage is used as a rule, and, save in exceptional cases, no truss is advised afterwards. The patient-in those cases healing per primam-averaged only seven and a half days in bed. This was not Kocher's wish, how- ever, but due to the limited hospital space. He says, " we agree with Macewen that it is right and desirable that after a radical operation the patient remain six weeks in bed, and not return to work until after eight weeks." Method of Dr. Joseph D. Bryant.'1-This consists in isolation of the sac-after exposing by incision the whole length of the canal and the deep ring-and then weaving the empty sac in and out, across and across the long axis of the canal, through four slitscut in the external oblique aponeurosis. Thereby the sac is made at once to oppose a return of the hernia, and also to aid in bringing more closely together the hernial parts. The exact mode of weaving the sac is clearly shown in the accompanying illustrations, Figs. 255, 256, and 257. (SUPPLEMENT ) Dr. Bryant remarks : " It is my opinion that this method cannot be applied indiscriminately, as can the open method, since it frequently happens tliat the sac is Fig. 256.-Sac going through Slits of Inner and Outer Pillars. illy developed, or so much damaged by isolation that it will be unwise to hope for particular benefit from the weaving process, even if it be possible to employ it; and, Fig. 257.-Sac passing through Outer Pillar and beneath Inner Pillars. too, not infrequently, the external pillar of the ring may be found to be so narrow and attenuated as to render its slitting impracticable." Recently Dr. Bryant has not Fig. 255.-Sac going through Upper Slit of Inner Pillar. A ease of sloughing of the sac following its ligation has led Dr. Bryant to cease tying it in this technique. To this extent, therefore, Fig. 255 is now incorrect. Finally the original slit in the external oblique apon- eurosis is closed, and the superficial ring narrowed, with quilted catgut sutures, which are also to be carried through the sac beneath for added solidity ; over all the skin is to be sutured. Fig. 258.-Quilted Tissues. performed this operation so frequently as heretofore, and so informs me. Method of Dr. George II. Fowler.-This surgeon makes 418 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Hernia. Hernia, (SUPPLEMENT.) his incision, and treats the sac in the same manner as does Bassini. He then follows a plan of his own, to be described, which is a modification of the method of Pos- tempski. In this latter plan the technique throughout is like Bassini's, save that Postempski permanently removes the spermatic cord from the inguinal canal, thereby being enabled to close the latter more completely. Postempski lifts out the cord as far as the deep ring, displacing it in a direction upward and toward the median line, and at- taches it in its new position (just beneath the skin, and superficially to the external oblique aponeurosis) by loose loops of buried catgut suture. Dr. Fowler's method (used for two years, now) differs from this, the Bassini-Postempski, in two respects, viz., as regards the character of his incision, and in re- spect to a peculiar method of suturing. He first slits the abdominal wall, " an inch or more," straight upward from the deep ring, and going as deeply as the peritone- um. Into this slit he lifts the cord, and holds it there, at the highest point possible, by "a loose loop of catgut suture placed at a proper distance above the internal ring." The integument and fascia are dissected up from the aponeurosis of the external oblique for a distance to- ward the median line sufficient to permit the placing of the spermatic cord in this, its new position, so far as its length will allow. " Both ring and cord, as well as the inguinal canal be- ing now cleared, the next step to be taken consists in a close approximation of the margins of the gap left. In order to accomplish this in the most perfect manner all drainage of the wound must be dispensed with, and it goes without saying, in these days, that the most rigid aseptic precautions have been adopted, in order to make this entirely safe. If antiseptic fluids have been used these should be washed away with sterilized salt-solu- tion, or a solution of the blood-salts in normal propor- tions. In this way any fluid remaining approaches in character normal connective-tissue fluid, and no irrita- tion is produced by its presence. "The wound is now ready for suturing. In order to secure proper layer-to-layer approximation of the divided and separated structures it was formerly the custom to secure these by means of buried catgut sutures. I have abandoned this method ever since employing the Bassini- Postempski procedure, and have substituted for it a method devised by myself, and which I have heretofore described as the "crossed suture." The material em- ployed is crin de Florence, or silkworm-gut. Firm and evenly rounded strands of this are selected. In using it the strand is threaded at both ends upon large and full- curved Hagedorn needles. In order to avoid trouble- some and annoying unthreading of the needles during the manipulation, I secure these to the thread by passing the end of the latter through the eye of the needle a second time from the same direction as that from which it was first passed. By this means a firm loop or "bight" holds the strand securely to the needle, Fig. 259 (Annals of Surgery, May, 1892). The needles, after emerging (the loop being drawn taut) each from its respective side, are reversed as regards position ; that which passed through Poupart's ligament being now carried to the inner side and passed through the skin, again from behind forward, -while that which included the inner margin of the lowermost layer, or muscular structures and conjoined tendon, is passed through the skin at the outer margin in the same manner. The thread is therefore crossed on a level with the plane which represents the space between the two layers. Upon drawing upon the ends of the threads the loop which includes the )) muscular structures and conjoined W Jf tendon upon the inner, a fold of transversalis fascia in the floor, and Poupart's ligament upon the outer ff side, of the wound, is tight- ened, and perfect approxima- tion of these structures results. By tying the suture over the skin the incision is completely closed. Fig. 260 (An- nals of Surgery, May, 1892) shows the "crossed suture," in this case crossed a second time. " The sutures are placed about three-eighths of an inch apart and a sufficient number are employed to close com- pletely the wound, no drainage being employed. All the sutures are placed in position before any are tied. In accomplishing the latter it is well to begin from above and as each is drawn taut a finger is carried to the bot- tom of the wound in order to assure one's self that each is fulfilling its purpose. A strip of protective and the usual dressing complete the procedure. " The sutures are left in place for at least three weeks ; I have left them in for five weeks with no ill effects. They are removed as an ordinary suture by simply cut- ting the thread upon one side of the knot and making traction upon the other. No difficulty is found in with- drawing the silkworm-gut, the latter readily following the figure-of-eight track which it forms. " I never permit a patient thus operated upon even to sit up in bed for the first six weeks following the opera- tion. This, at the present time, I consider an important adjunct to the operation, although further experience may shorten this time somewhat in selected cases. In persons in whom, from long truss wearing or other causes, there is a loss of resiliency of the wall of the ab- domen, it is well to prolong the stay in bed for a fort- night longer, and to employ, in addition, massage and electricity, following the healing of the wound. " The advantages claimed for this method of operation relate, first, to the plan of placing the cord in such a position as to render it next to impossible for a knuckle of intestine to follow it in its course. Under all circum- stances in which a recurrence is favored or produced, the duration of the force is from within forward and down- ward. When the cord is made to assume a course up- ward and then inward before making its descent in the direction of the scrotum, nothing short of the patient standing on his head will favor the entrance of a portion of intestine alongside of the cord, and permit it to follow its course. It may be said that the weight of the testicle will tend to straighten the cord finally ; this is true to a certain extent, but the manner of placing the sutures here described will prevent this, for the reason that the cord Fig. 260. Fig. 259. "The strand being thus secured to the needles the latter are passed from behind forward, one through each edge of the divided lowermost layer. The latter consists es- sentially, in the case of an ordinary indirect inguinal hernia, of the muscular structures and conjoined tendon upon the inner margin, and Poupart's ligament upon the outer. At the points where the transversalis fascia pre- sents itself as the floor of the canal, a fold of the latter is included in the loop. Care should be taken in this part of the manipulation not to wound the external iliac vessels. 419 Hernia. Hernia. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. is held away from the line of incision by being retained entirely outside of these, independently of the chromi- cized catgut loops which fasten the cord in its new position. Second, the crossed suture secures, in the approximation of the edges of the divided layers separately, all the advan- tages of the buried catgut suture ; being removable at will it presents none of the disadvantages arising from the un- certainty as to the length of time which the latter may be depended upon to hold securely. In addition to this, the crossed suture firmly grasps and securely holds the several layers, not only edge to edge, but surface to sur- face. The result of this is a firm and solid wall, extend- ing from the parietal peritoneum to and including the skin-surface. Third, prolonged maintenance of the dor- sal decubitus insures stability and firmness of this wall, and at the same time, aided by massage and faradization, it restores the relaxed and thinned abdominal wall to some approximation to the normal condition." Dr. Fowler has used this method up to date in thirty- three cases ; and has had but one recurrence-a patient with femoral hernia, in whom suppuration and extensive sloughing occurred. The author advises against the use of a truss after the operation. Method of Dr. George A. Baxter.3-This consists in an incision exposing the whole length of the inguinal canal to the deep ring, followed by a second cut going directly upward from tins ring through the entire abdominal wall and exposing the bowels for a distance-varying as to number of inches in different cases-"sufficiently far to enable the sac to be engaged in it without being too much folded upon itself." The sac, after a very thorough dissection to the highest possible point, is tied at a level which would be " within the canal " if the sac were still lying there. Then the sac is turned vertically upward from the deep ring and pressed deeply into the upper wound. Any excess at the free end of the sac is cut away. Two lines of sutures are next inserted. The deepest pass first through the skin and directly into the peritoneal cavity, then out through the sac in its new position, then into the belly again, and so out of the skin on the opposite side of the wound. About four or five of these stitches are inserted transversely, going from the highest point down to the deep ring. Next, a more superficial row, about as numerous, and covering the same extent of wound ; but these only pass from the skin to the perito- neum, and run over the sac, and embrace the musculo- aponeurotic coverings of the abdomen and the skin. The author points out the danger of ventral relapse from allowing, while suturing, the muscles to retract, as they will to different degrees, and of passing the needles without first remedying this. One should seize the muscle-edges and draw them flush and even with the skin, and, while holding the wall thus, pass the needles. Next one or two " curved or crucial sutures are passed at the internal opening of the canal from below upward, dipping over the cord (which is placed to the outer side of the incision, and still in the canal) but entering and pass- ing through the tissues after the manner adopted in the majority of operations for ruptured perineum-traversing them, in other words," Now tie all the sutures passed. Finally, " the hernial canal and scrotal opening are closed with deep suturing." (As to this, no more definite statement is made, nor is the kind of suture-material named.) No drainage is to be used unless we find the sac or its contents diseased. The author calls attention to the " necessity for care- ful removal of all fat from the neighborhood of the in- ternal opening, and the freshening of the edges of the tissue at this point for better union." Dr. Baxter claims among its advantages that this plan " deflects all expulsive efforts from the ring and canal to the abdominal parietes, thereby lessening greatly the liability to a recurrence in the old channel ; and, by do- ing so, leaves the ring and canal in a perfectly quiescent state during the whole progress of healing." This operative procedure is so recent as to have no list of cases to show as yet. Dr. Baxter gives illustrations of methods and results in one difficult case. (SUPPLEMENT.) Method of Dr. A. Wolfer A-This, the most complicated of possible methods for radical cure, has, I think, for this Fig. 261. reason been but little tried by others than Wbltler himself. It is, however, so ingenious in several respects as certainly to be deserv- ing of accurate description. Most of the steps he has used for four years past. These are : Fig. 2t»2. 420 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Hernia. Hernia. 1. Denudation of the superficial ring, and of the an- terior-wall of the canal-the aponeuroses of the external oblique muscle (Fig. 261). 2. Splitting the external oblique aponeurosis, thereby exposing the cord, sac, and the deep ring (Fig. 262). Fig. 263. 3. Isolation of the blind (distal) end of the sac (Fig. 263) ; and opening this freely by aid of several pairs of forceps (Fig. 264). Fig. 264. Fig. 266. 421 Hernia. Hernia. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) 4. Closure of the neck of the sac by suturing (silk), by either of two methods (Fig. 264). 5. Then scorching of its interior by actual J cautery (Fig. 265). 6. Final closure, by suture, of distal portion of of step 5, be cut away near its first-named line of sutures after the cauterization. 7. The cord must now be displaced from the deep ring and brought as far inward as is possible. 8. Temporary castration, by pulling the testicle, at- tached to its cord, out of the scrotum, then tucking it through an opening behind the sheath of the rectus muscle of its own side, then out through a slit between the two recti, and so back again home (Fig. 267). This device has only as yet been used four times, and but re- cently. The inguinal canal is now, of course, empty, save for the scorched and doubly sutured sac. 9. Narrowing of the canal and deep ring by sewdng snugly over the sac in them first the transversalis mus- Fig. 267. sac, Fig. 266, leaving it still in inguinal canal. In case the sac is easily peeled up, it may, instead Fig. 269. cle, and next the internal oblique, each to the deeper, shelving portion of Poupart's ligament (Fig. 268). 10. Opening sheath of rectus muscle (Fig. 269). 11. Displacement outward of this muscle until it is sewn, like the previous muscles, to Poupart's ligament (Fig. 270); or else to the under surface of the aponeurosis of the external oblique, on the outer side of the cleft in the latter. In addition, the cut sheath of the rectus, or its anterior portion at least, is so sutured. 12. Closure of the split external oblique aponeurosis, and obliteration of the superficial ring, by suturing, even down to the pubic bone (Fig. 271). 13. Suture of the integument, over a small drainage- tube.* In making the superficial incision this should run, not parallel with Poupart's ligament, as the cut (Fig. 261) would indicate, but rather more nearly in a vertical di- rection. The same is true of the direction in which the external oblique aponeurosis is slit. Consequently there is a much broader aponeurotic surface than merely Pou- * In Figs. 268, 269, 270, and 271 it is evident that the cord is wrongly drawn, and should have been made to appear running in its new position, from between the two recti muscles, downward and outward to the scrotum. Fig. 268. 422 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Hernia* Her ilia. part's ligament to which to sew the two deeper muscles. Also, the rectus does not have to be dragged so far out- crowds it as much as possible against the deep ring, and then sews the muscles over it as stated. " When (excep- tionally) this cannot be done, the sac is drawn, before this suturing, toward the scrotum ; and any excess in length is divided opposite the superficial ring by either cautery or knife." Regarding the temporary castration, Wolfler advises inserting a thread through the scrotum at the location of the divided gubernaculum, for the purpose of readily finding it again, so as to replace, by a stitch, the testis in its exact former relation to the gubernaculum. It will be observed that Wolfler indulges, as a rule, in eight distinct lines of suturing : 1, The neck of the sac ; 2, after cautery, the more distal portion thereof; 3, the trans versalis muscle ; 4, the internal oblique ; 5, the rec- tus ; 6, its cut sheath, or the anterior part of it ; 7, the external oblique aponeurosis ; 8, the skin. In his introductory remarks it is pleasing to notice that he disapproves of Macewen's method, among others, because it is so complicated, so lacking in simplicity ! Method of Dr. FramkM-This surgeon has recently re- ported two cases in which, after removing the sac as usual, he has carried out a new idea, in endeavoring permanently to empty the canal of the spermatic cord, so that the canal may be obliterated by suturing. This is done by drag- ging the cord inward until it escapes opposite the super- ficial ring, when it is tucked down into a neatly fitting gutter of sufficient depth, chiselled from the horizontal ramus of the pubes. The superficial ring, like the rest of the hernial region, is now entirely to be closed by su- tures. Turning now from inguinal to femoral hernia, the writer presents, in closing this study, three recent methods devised for attempting radical cure of hernia escaping below Poupart's ligament, through the femoral ring. It is commonly agreed that, by whatever plan attempted, femoral hernia is somewhat less frequently the subject of relapse than is inguinal. Dr. Marcy has stated in his new work upon hernia, Apropos of this, that Drs. Macewen and McBurney have recently written him saying that they do not know of a single recurrence in their own operated cases. The widely differing plans, nevertheless, preferred by these two gentlemen may be ascertained by reading the description, in Vol. VIII., of their respective inguinal operations. Dr. George 11. Foicler's method in femoral hernia con- sists (after the isolation, high ligation, and cutting away of the sac) in the application of his " crossed suture," before mentioned in this article (see Fig. 260). Poupart's liga- ment is forcibly retracted upward, when the internal opening of the crural canal is brought into view. The first loop of each suture will include, according to its location, either Poupart's ligament or the lower border of the aponeurosis of the external oblique muscle, the vagina vasorum, the pectineus muscle and fascia covering it, and, perhaps, Gimbernat's ligament. The usual care must be exercised, while sewing, not to wound the vessels. The needles are now reversed, the suture crossed, and the margins of the iliac and pubic portions of the fascia lata included in the second loop. The needles are again re- versed, the suture again crossed, and the superficial fascia and integument grasped in the last or outer loop, this last being completed by tying the suture upon the outer sur- face of the skin. Dr. Salzer11 first removes the sac and then closes the external orifice by a flap formed from the fascia covering the pectineus muscle turned upward and sutured to the middle third of Poupart's ligament. In this manner the septum crurale is replaced by a tough, resistant layer of fibrous tissue. The thickness of the pectineal fascia varies, but it is most likely to be strong enough in old persons and in those who have worn a truss for femoral hernia for a long time. I think it preferable to oppose to the advance of the bowel a thicker, firmer mass than that made by Salzer's layer of pectineal fascia alone, and have preferred, as a slight but not unimportant modification of his method, to dissect up quite a deep and free flap of pectineus muscle and not alone of its fascial covering, suturing this Fig. 270. ward for suture (as shown in Fig. 270) as other- wise would be the case. As to the further treatment of the cauterized and stitched sac, the author states that lie commonly Fig. 271. 423 Hernia. Histological. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) to the freshened and well-exposed broad under surface of Poupart's ligament, and thereby solidly filling the space between the femoral vein and the free edge of Gimbernat's ligament. Outside this musculo-fascial flap I also unite the freshened iliac and pubic portions of fascia lata, if need be making a long vertical incision through this membrane, an inch or more to one or other side, to per- mit easy apposition of the edges, without tension on the sutures ; and finally I close the skin-wound ; all stitches being preferably of freshly boiled silk. Dr. Kocher describes as follows the method preferred by him : " In femoral hernia, also, it is necessary com- pletely to isolate the hernial sac serosa, to draw it strongly down, and to tie it as high as possible. With the short and broad pedicle this ligation is not always so easy as it is in the inguinal hernia. Then cut away the excess. Still more difficult is the suturing of the canal. Nothing is to be gained by sewing the remains of the processus falciformis which forms the anterior crural ring, to Pou- part's ligament; but here also the deep parts of the femoral canal must be brought together. This is best attained (as we can say after watching the courses which our cases have followed), by passing the sutures through the transverse portion of the pectineal fascia (which, under the name of " ligament of Cooper," covers the pectineus muscle at its insertion into the pubes, and which can plainly be seen on the lower side of the neck of the hernial sac), and drawing it up and firmly suturing it to Pou- part's ligament. This causes broadening of the ligament of Gimbernat which covers the inner angle of the femoral ring, and usually gives a sufficiently good closure of the hernial opening." Dr. Kocher has sometimes also employed the following method in the treatment of the sac : This, having been completely isolated and twisted as strongly as possible, is drawn through a small opening made above Poupart's ligament, and in the manner above described is included in the sutures which are passed through the pectineal fascia and Poupart's ligament for the purpose of closing the femoral ring. Robert H. M. Dawbarn. rules must be borne in mind in the fixation of tissues : Use those reagents which do not form tissue-like precipi- tates with protoplasm. This requirement is met by chromic salts, sulphate of copper, sublimate and some other salts. Preparations from chromic salts when transferred to alcohol should be kept in absolute darkness (Virchow) until the fixing agent is removed so far as possible. Chromic acid transforms protoplasm into tissue-like forms and should be avoided unless its application can be controlled. Fixing fluids should contain an organic acid (e.g., acetic) which changes nuclein into an insoluble state. The acid should be used in a diluted form, as nuclein is said to be soluble in strong acids, or even in weak acids if their action is too long continued. A small quantity of alcohol is also desirable. Strong alco- hol dehydrates too rapidly and induces changes in the pro- toplasm. With the foregoing as a basis, he recommends the following solution : Alix excess of finely powdered bichromate of potash and sulphate of copper in fifty per cent, alcohol and allow the solution to stand in complete darkness for twenty-four hours. A greenish - yellow fluid is the result and this before using should be acidu- lated with acetic acid (five or six drops to one hundred cubic centimetres). The object to be fixed is placed in this fluid from twelve to twenty-four hours, according to its size and the degree of hardness required, the whole transaction being carried on in the dark to avoid the precipitation of the salts. The specimen is then placed in strong alcohol from twelve to twenty-four hours, af- ter which it may be sectioned in any of the usual ways. The usual reagents for preservation after fixation, alcohol, chromic acid and its salts, are rejected on account of the tissue-changes induced by them ; ether, xylol, toluol, or any substance which does not act upon albuminous matter, is recommended. Osmic acid in the form of vapor or in solution, corro- sive sublimate, Flemming's, Kleinenberg's, Perenyi's, Merkel's, and other mixtures have stood the test of time and are too well known to need more than the briefest mention. Tissues fixed in osmic and chromic acids do not readily take the carmine stains. Osmic acid is easily reduced in the presence of organic matter. This is a more important factor than light. To retard this reduction Lee2 recommends that the osmium should be kept in the form of a two per cent, solution of osmic acid in a one per cent, aqueous chromic acid solution. This solution serves for fixation with osmium vapors and for the making up of Flemming's solution. AU dust should be carefully excluded. Rabi's Fluid:3 One-third per cent, chromic acid.. 200 c.c. Concentrated formic acid 4 or 5 drops. The mixture must be prepared fresh whenever needed. After twelve to twenty-four hours' fixation the tissue is washed with water and the hardening completed in alco- hol. It is one of the very best reagents for karyokinesis. Permanganate of Potash *-This reagent, in a saturated solution, is said to kill even more rapidly than two per cent, osmic acid. It preserves the forms of cells very well and has been found useful in the study of isolated and contractile cells, e.g., spermatozoa. Car noy's Fixing Fluid or Acetic Alcohol.*-First for- mula : Glacial acetic acid 1 part. Absolute alcohol 3 parts. The second is : Glacial acetic acid 1 part. Absolute alcohol 6 parts. Chloroform 3 parts. The chloroform is said to render the action of the fluid more rapid. Acetic alcohol is one of the most rapid and penetrating " fixers " known. It preserves nuclei well, but must not act too long, and admits of most any way of staining. It is applicable to tissues in general and should be washed out with alcohol. Davidoff's Solution :5 Saturated solution of corrosive sublimate, 3 parts. Glacial acetic acid 1 part. This has been found very useful for ova, which may 1 Amer. Journ. Med. Sciences, 1892, p. 258. 2 New York Medical Record, April 9. 1892. s Johns Hopkins Hospital Bulletin, vol. i., No. 1. 4 Cure Radicale des Hernies. Paris, 1892. s Annals of Surgery, March, 1893. 8 Medical News, Philadelphia, February 15. 1890. ' Annals of Surgery, December, 1892. 8 New York Medical Record, November 9, 1889. 8 Annals of Surgery, March, 1893. Billroth : Jubilee Volume. Stuttgart. 1892. 11 Wiener klin. Wochenschrift. 21 Juli, 1892. 12 Centralbl. f. Chir., August 20, 1892. HISTOLOGICAL FORMUL/E, ETC., RECENT. That histology is a progressive science is evidenced by the many new and modificatory formulae constantly ap- pearing ; that it is becoming more and more an exact science is shown by the quality and accuracy of the re- sults. Methods are the sine qua non and their impor- tance cannot be too greatly emphasized. Fixation of Tissues.--Fixing, as ordinarily under- stood, implies the killing as well as a slight degree of hardening of the tissue. Its more precise aim is to cause as nearly as possible, by means of certain reagents, the same relative position, size, and structure of the elements after death as before. This may be more or less success- fully accomplished either by the use of an agent that acts instantaneously or one that acts gradually. Rapid fixa- tion perhaps gives the most satisfactory results. It is of course essential that the structures should be alive at the time of fixation, so that pathological or post-mortem changes may be avoided. Plenty of the " fixer" should be used. Fifty to one hundred times the volume of the specimen is a good proportion. It should be changed whenever it becomes turbid. After once being used it is to be thrown away. No universal fixer has as yet been found. With so many varying conditions and pe- culiarities of structure, experiment alone can decide just which formula is best for any particular case. According to Kultschitzky 1 the following important 424 REFERENCE HANDBOOK OF TIIE MEDICAL SCIENCES. (SUPPLEMENT.) Hernia. Histological. remain in it from half an hour to an hour, then w'ashed for a few minutes in water and carried up through the successive alcohols. This mixture also works very satis- factorily with other tissues and for the rapid killing of many animals. Another solution, almost as good, consists of : Saturated solution of picric acid 3 parts Glacial acetic acid 1 part The structures are to remain in it for three or four hours and then brought into seventy per cent, alcohol. Kolossow's Solution."-A 0.5 per cent, solution of os- mium in two or three per cent, of nitrate or acetate of uranium is recommended as having very great penetrat- ing power. Gage's Picric Alcohol: Distilled water 500 c.c. Ninety-five per cent, alcohol 500 c.c. Dry picric acid 2 gms. It amounts to a one-fifth per cent, solution of picric acid in fifty per cent, alcohol. The tissues are fixed in this solution from one to three days, then washed in sixty- seven per cent, alcohol for two to three days and kept for at least one day in eighty-two per cent, alcohol. They may remain in the latter indefinitely. If small pieces of tissue are used the time for each step may be abridged ; if large, the time should be lengthened. This "fixer" is of quite general application and admits of any of the usual methods of staining. Picric acid should always be washed out with alcohol (Lee). This reagent is said to transform albuminates into an insoluble state. After the removal of the acid the tissue can be colored with any stain. It is recommended for chitinous structures on account of its penetrability. It has also some decalcifying power. Zinc Chloride.-Broca,6 in 1879, recommended a ten per cent, alcoholic solution of this salt for the preserva- tion of gross preparations of the brain. Grandmaison (Oomptes rend, hebdom Sw. de Biol., I., 1889) has con- sidered " De 1'emploi des solutions de chlorure de zinc pour la fixation des elements anatomiques." This re- agent has given excellent results on brain-tissue for histo- logical purposes in the following solution : Ninety-five per cent, alcohol 100 c.c. Zinc chloride. 5 gms. Its action is rapid and even. After two to three days' immersion the tissue is placed in ninety-five per cent, al- cohol until thoroughly hardened and dehydrated, when it may be imbedded and cut in any of the usual ways. It stains very readily in hematoxylin or carmine. Lemon-juice,"1 fresh and filtered, has been warmly rec- ommended by Van Gehuchten as a fixative for nuclei.. Fix for five minutes, wash well with water, and stain with methyl green. Alcohol.-Two grades are sometimes employed. Di- lute alcohol is often useful, in that it is strong enough to exert some coagulating power, but has sufficient water to render its dehydrating action feeble and innoc- uous. Absolute alcohol kills quickly and the tissues are not allowed to become deformed. Alcohol, however, is chiefly useful as a "fixer" in connection with some salt dissolved in it, as corrosive sublimate, picric acid, etc. Pyridin*-A coal-tar product, possessing the peculiar property of being miscible with either oils or water, and coagulating albuminates with a neutral reaction. Hard- ening is effected in an incubator in about eight days ; with small specimens less time is required. The tissues are at once hardened, dehydrated, and cleared, and can be easily sectioned and stained. The anilin dyes dis- solve very readily in pyridin. The sections may be mounted in balsam, or after four days' hardening trans- ferred to water, in which case they take up hematoxylin and picrocarmine very well. The reagent gives the best results with nervous tissue. It has also been found use- ful in the study of bacteria. The odor is very penetrat- ing and rather disagreeable. Heat.-Heat is very efficacious in killing suddenly and coagulating albuminous substances. "It has the great advantage of allowing of good staining subsequently and of hindering less than any other method the applica- tion of chemical tefets to the tissues." * Heat is not ap- plicable to all organs or organisms, nor is it always easy to determine the exact degree of temperature suitable for each structure; 80° to 90° C. will generally be amply sufficient, and very frequently it will suffice not to go beyond 60° C. A few seconds' exposure is generally enough. When the protoplasm is supposed to be coagu- lated throughout the structures are brought into thirty to seventy per cent, alcohol, if water is employed as the heating agent. The efficacy of the ordinary fixing mixt- ures is largely increased by heating them. Small objects (Protozoa, etc.) may be brought into a little water in a watch-glass or on a slide, and heated over the flame of an alcohol lamp. For larger objects the water or other liquid may be heated beforehand and the animals thrown into it. For the fixing of eggs (amphibian and others) heat has given most excellent results. Decalcification.-Bones or calcified tissue contain a considerable amount of inorganic substance, represented chiefly by the phosphate and carbonate of lime. These salts are soluble in various acids, and when once re- moved the organic constituents are left behind, leaving the bone flexible, elastic, and more or less translucent, and, with proper imbedding, admitting of easy sectioning. "To obtain the most satisfactory results the bone must be thoroughly fixed and hardened like any other tissue, before being put into the decalcifier. Reagents which are said to harden and decalcify at the same time are of doubtful utility for fresh specimens. A general but important rule to bear in mind is to em- ploy the acid in a very weak solution, in order to make as little change as possible in the soft tissue it leaves be- hind. When the lime is chiefly in the form of a car- bonate, as in the skeleton of Echinoderms, the acid must be added very gradually. The specimen should be im- mersed in water in a glass vessel, and the acid added drop by drop until the appearance of air-bubbles shows that it is taking effect, the remainder of the acid being added as required. When the lime is mostly in the form of a phosphate, as in the bones and teeth, the acid may be used in a stronger solution. The most widely used reagent for this purpose is nitric acid. It exerts a great gelatinizing power even in weak solutions, thus tending to deteriorate the soft structure if acting alone or in aqueous solution. It has been found that the gelatinizing or softening action might be greatly hindered by the use of an alum solu- tion (Gage). Care must be taken not to allow the ob- jects to remain too long in the decalcifying fluid, or de- composition will ensue. Gage's Methods.™-The fresh bone, tooth, or calcified cartilage, is fixed and hardened by any of the approved methods, as for soft tissues. Picric alcohol has been found very satisfactory. The tissue is then ready for the following decalcifying mixture : Sixty-seven per cent, alcohol (95 per cent, alco- hol, 2 parts ; water, 1 part) 100 c.c. Strong nitric acid 3 c.c. Other things being equal, the smaller the volume of the bone the more rapidly will it decalcify. The fluid should be changed after twenty-four to forty-eight hours. If the specimen is large it may be necessary to change the fluid two or three times. A stay of from ten to fifteen days does not seem to injure the soft structures. If there is no gritty feeling upon the introduction of a needle, the decalcification is complete. Upon removal from the decalcifier, the tissue is rinsed a minute or so in water, then placed in sixty-seven per cent alcohol one to two days, then in eighty-two per cent, until ready to section. Small animals, e.g., salamanders, treated by this method give most excellent results for skull, brain, etc. Second Method.-After fixing, the tissue is put into the following mixture : A saturated aqueous solution of alum is diluted with an equal volume of water, and to each 100 c.c. of this half-saturated alum solution add 425 Histological Form u lie. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) 5 c.c. of strong nitric acid. The mixture is changed every two or three days until the decalcification is com- plete. It is somewhat more rapid than the first decal- cifier. After decalcification the tissue is thoroughly washed in water and carried through the alcohols as be- fore. For teeth this is perhaps the better decalcifier. Both mixtures preserve the soft structures, marrow-cells, cili- ated epithelium, etc. In the first tlie alcohol, and in the second the alum, serves as a restrainer, preventing the gelatinizing and destructive action of the nitric acid. Thoma's Method.-Bones or other calcified tissue, either fresh or hardened, are placed in alcohol 95° Tralles until completely saturated, and then transferred to a solution consisting of : Alcohol (95° Tralles) 5 parts. C. P. nitric acid 1 part. in which they are left several days, being frequently shaken. The fluid should be renewed and shaken until the tissue is completely decalcified.. The fluid acts quickly, the calcic nitrate formed being quite soluble in weak alcohol. This may be proven by adding to the above solution a surplus of precipitated carbonate of lime ; upon evaporating 100 c.c. of the filtrate there will be found 8.67 grms. of calcic nitrate. Large pieces of tissue may be decalcified in two to three weeks. They are then washed in alcohol and put into a vessel containing a surplus of precipitated carbonate of lime in alcohol 95° Tralles. This mixture is also shaken up and renewed, until every trace of the acid is removed from the tissue, which takes usually from eight to fourteen days. The specimens should be left in the solution even a short time after litmus-paper shows no acid reaction. Most of the deposit of the carbonate of lime can be re- moved from the specimen with a spray of alcohol; the small particles left do not interfere. The deposit may be avoided by wrapping the specimen in filter-paper, but it takes longer to remove the acid. Or a dialyzer with a diaphragm of filter-paper may be used. Large pieces of dense tissue are rapidly decalcified and the acid completely removed, no swelling of any account occurs, and the soft structures undergo little or no change. Hydrochloric Acid.-This acid also has an extensive use, but it has the disadvantage of causing considerable swelling. To obviate this to a greater or less extent it may be used in combination with chromic acid or alco- hol. Or a three per cent, solution may have added to it ten to fifteen per cent, of common salt. Or (Waldeyer) to one thousand parts of a one-tenth per cent, solution of palladium chloride may be added ten parts of hydro- chloric acid. Lactic Acid.9-This is said to work well in ten per cent, or stronger solution, being more rapid than picric acid, and as applicable for embryonic and small bones as for older calcified tissue. Phosphoric Acid9-This has also been recommended in ten to fifteen per cent, solutions. The tissue must be im- mersed for a long time. Unless absolutely pure acid is used the tissue does not stain well. Considerable pre- caution must also be taken in the handling of it. Chromic Acid.-This reagent is used for decalcifying, generally beginning with a weak (one-tenth per cent, solution) and passing to the strong (one percent.). Bone should remain in it from two to three weeks. Haug's Phloroglucin Method9-One of the most rapid of the decalcifying agents. It preserves the structures perfectly, except blood, which it modifies considerably. The method was introduced by Andeer, who used the phloroglucin in combination with hydrochloric acid, but with variable results. The substitution of nitric acid removed this difficulty. The solution is prepared by warming 1 gm. of phloroglucin in 10 c.c. of C. P. nitric acid. This must be done slowly and carefully. Soon a dark ruby-colored solution is obtained; to this is added 50 c.c. of distilled water. If a larger quantity of the fluid is desired, 10 c.c. of the acid are added to every 50 c.c. of water, until the volume has reached 300 c.c., which is the limit of the protective influence of the phloroglucin. In this solution the pieces of well-fixed and well- washed material are placed. Foetal or young bones, as well as those of the lower vertebrates, are decalcified in half an hour. Older and harder bones require but a few hours. A twenty per cent, solution generally suffices, although thirty-five per cent, may be found useful for teeth. If rapidity is not so essential, the following may be used : Phloroglucin 1 part. Nitric acid 5 parts. Alcohol, ninety-five per cent 70 parts. Distilled water 30 parts. After decalcification the bones are washed in running water for about two days. The sections stain well and do not fade. Desilicification.-Objects should be first hardened in alcohol, then placed in alcohol in a vessel made of lead, gutta percha, or glass coated with paraffine. Hydro- 11 uoric acid is then added drop by drop, care being taken to avoid its poisonous fumes. Contact of the acid with the skin causes wounds difficult to heal. Small sponges and other similar siliceous objects, by remaining a few hours or a day in the above solution, are wholly deprived of their silica, while the tissues do not suffer. Staining.-The chief function of a stain is to differ- entiate certain tissue-elements, or, as in a successful gold chloride impregnation of nerve-endings, a whole tissue or group of tissue-elements. The former Lee5 desig- nates as cytological selection, the latter as histological selection. The precise action or combination of stains is as yet very obscure. Living tissue has no affinity for ordinary stains. Certain special reagents which do color living tissues, temporarily at least, will be noted later. A living cell is neverat rest, and only after it has become considerably weakened will it permit the stain to act. The coloring of the nucleus is a sign of death. If the cell recovers, the cytoplasm will ultimately throw off the stain. Furthermore, according to M. Flesch,10 a favorable stain, e.g., cyanin, produces a much different result in a "fixed" preparation than in a living one. The parts affected in the dead preparation can never be similarly affected when alive. Some stains are successful only after previous treat- ment of the tissue with easily reducible combinations. By control experiments it is seen that the staining ex- tends only as far as the metallic precipitate. The orig- inal constituents of the tissue are not stained, but the chemical products, probably the metal albuminates re- sulting from the treatment with hardening agents. There is reason for believing that the parts which, when living, are more highly endowed physiologically, take on a deeper color. The methods of fixing and hardening count very much, therefore, toward the successful action of a stain, and must be taken into careful consideration when making a selection. Tissues fixed in chromic acid or its compounds do not take the carmines well, while hematoxylin acts very readily on such tissues. Lee2 considers two methods of bringing about selec- tive staining, the direct and indirect. With the former the operation must be watched and stopped at just the right stage, when the desired elements are sufficiently colored, otherwise the stain acts on the other parts and a diffuse color is the result. With the indirect (by far the more common) the tissues are over-stained and the super- fluous color afterward removed by some reagent (usually acidulated alcohol). Stains may be used in aqueous or alcoholic solutions. Each is useful in its own way. With the former there is danger of maceration if the tissue is delicate and left too long in the fluid. With some tissues the swelling induced by the water may be an advantage, and results not attainable by any other method are produced. Al- coholic stains possess the property of preserving the structures while the coloring is going on. Considerable time is saved by not being compelled to carry the speci- men through as many grades of alcohol, and the danger of tearing delicate parts by osmosis is likewise prevented. Structures may be stained after having been imbedded 426 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Histological Formulae, and cut, i.e., in the form of sections, either before or after fastening to the slide, or they may be stained in bulk be- fore being imbedded. Here again there are certain ad- vantages peculiar to each method. A more even distri- bution of color is perhaps insured with aqueous or weak alcoholic stains. According to Whitman,11 the more important qualifi- cations of a dye for staining in toto are the following: (1) It should penetrate readily, so that its action on the deeper and more superficial parts may be as equable as possible. (2) Its action at full strength should be intense, capable of imparting any desired depth of color. (3) It should give a differential rather than a diffuse staining; i.e., it should act with unequal degrees of intensity on the different elements of the cell, thus contributing to sharpness of definition. (4) Its preservative qualities should be sufficiently pronounced to enable it to act any required length of time without causing maceration. (5) The color imparted should be permanent. The differ- ential character of the stain may be strengthened by washing a few minutes in slightly acidulated alcohol. A rather broad generalization, then, would be that aqueous solutions are more adaptable for sections or for very small and easily penetrable organisms, while for staining in bulk alcoholic solutions are to be preferred. Too strong an alcoholic solution of stain will cause diffuseness of color. The percentage employed may be as high as seventy per cent. Any system of classification of stains must be extreme- ly artificial and inadequate. Stains themselves may be derived from organic or inorganic sources. As to their use, they might be grouped according to their action on fresh or hardened tissue. A more common and per- haps better division would be their affinity, either chemi- cal or cohesive, for only certain parts of the tissue, i.e., selectivity ; or for the general and indiscriminate color- ation of the whole tissue : diffuseness. The following table may serve as a convenient index : 1 gm. of hematoxylin with the aid of heat in 20 c.c. of distilled water, filter, add 1 c.c. of caustic ammonia (specific gravity 0.875), and put the purple fluid into a dish large enough to allow the liquid to cover the bottom to the depth of | c.c. Protect from dust and allow to evaporate. The amount of dry ammonia-hematein is about equivalent to the hematoxylin first used. Mayer's Hemalum: (a) Hematein or ammonia-hematein 1 gm. Ninety per cent, alcohol 50 c.c. Dissolve by the aid of heat. (b) Alum 50 gms. Distilled water 1 litre. Mix the two solutions, cool, and filter. A crystal of thymol may be added to prevent moulds. Quite large pieces become intensely stained in twenty-four hours, and the stain apparently gives as good results as Bohm- er's solution. For most purposed it is better to dilute with water or a weak alum solution. For a good nu- clear stain wash out with a one per cent, alum solution. An acid hemalum may be obtained by adding to the above solution (a and b) a two per cent, solution of gla- cial acetic acid. This is said to give a more precise color than the ordinary hemalum. Remove the acid by simply washing with water. On account of certain defects found in Kleinenberg's mixture (alcoholic), Mayer recommends the following solution : Hemaealcium: Hematein or ammonia-hematein 1 gm. Aluminium chloride 1 gm. These should be rubbed together in a mortar very thoroughly. Glacial acetic acid 10 c.c. Seventy per cent, alcohol 600 c.c. Calcium chloride 50 gms. Mix the alcohol and acetic acid and add the hematein aluminium chloride. When dissolved add the calcium chloride. The fluid is red-violet in color. If the ob- jects are stained too red, treat with two per cent, alu- minium chloride dissolved in alcohol, or in a one-half per cent, to one per cent, solution of acetate of sodium or potassium in absolute alcohol. For some purposes it is well to mix the hemaealcium with one-third of its volume of glycerine (e.g., entoderm or tentacles of hydroids). It is said that the perma- nency of the fluid is good, but clearing with bergamot or clove oil causes an early fading. Certain oxidation or reduction changes are likely to occur in time and injure the preparations. Delafield's Hematoxylin.-A well-known and exceed- ingly useful stain. It will keep for years. See Vol. III., p. 676. Ehrlich's Acid Hematoxylin: Water 100 c.c. Absolute alcohol 100 c.c. Glycerin 100 c.c. Glacial acetic acid 10 c.c. Hematoxylin 2 gms. Alum in excess. This mixture should ripen until it assumes a dark-red color. It will keep for years in a well-stoppered bottle. Sections stain in a few minutes. The stain is suitable for coloring in toto, as over-staining does not occur. To get a blue stain, wash out with common drinking-water which is slightly alkaline. It is said that the addition of acetic acid prevents the alum from splitting up into free sulphuric acid, and a basic, lake-forming compound of alumina, as generally occurs in the ordinary (alum) hematoxylin solutions. Haug's Hematoxylin: " Dissolve hematoxylin 1 gm. In absolute alcohol 10 c.c. This is added to an aqueous solution of alum acetate (Liquor aluminis acetici) 200 c.c. A good nuclear stain and useful in most methods for the nerves; It is quite durable but, like the other hema- toxylins, it must be well ripened before use. It is more useful for section than bulk staining. The fluid has at Diffuse or general stains. - Eosin, picric acid, and other aniline colors. D i ff e ren- tial or selec- tive stains. Nuclear. Metallic. Intra vi- tam. Fresh tissues, color temporary. Methyl green, aceto-carmine. Some ani Hardened tis- sues, color more or less permanent. H e m atoxylin, carmines. lin colors. Silver ni- trate, palla- dium chlo- ride. Methyl blue, cya- nin. Hematoxylin.-This, except for permanency, is perhaps the best all-around stain for animal and vegetable tissues. It stains alcoholic, osmic, and chromic acid preparations very readily, but with the latter care should be taken that all of the acid is extracted, or fading will soon ensue. Hematoxylin is the active principle in the extract of log- wood. As it is not very readily or easily extracted, it had better be obtained from the market already prepared. None of the solutions of hematoxylin are perfectly stable, only one or two are fairly so (Lee). Over-staining may be corrected by the use of weak acids. The tissue should be re-neutralized with ammonia to prevent fading. This is quite likely to occur even with the greatest care. Hematoxylin solutions are not ready for use imme- diately after being made up. They must first "ripen," according to the mixture, for a few hours, or days, or months. The ripening process, according to P. Mayer,1'2 is due, not necessarily to light, but to the air, which causes the oxidation of the hematoxylin. From the products of oxidation, or from treatment with alkalies, there may be obtained the active coloring principle, hematein, or ammonia-hematein, which in trade is known as hema- teinum crystallisatum. It is a brown-red powder and soluble in either distilled water or alcohol. The solution should remain clear upon the addition of acetic acid. The hematein may be prepared as follows : Dissolve 427 Histological Formulae. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) first a deep violet-black appearance, but after some weeks' ripening it assumes a brown-black color, much like Ehrlich's acid hematoxylin. After treatment for over-staining with acid alcohol, the sections are washed out in water till they become blue. Gage's Hematoxylin: '8 Distilled water 200.0 c.c. Potash or ammonia alum 7.5 gms. Chloral hydrate 4.0 " Hematoxylin crystals 0.1 gm. Place the water and alum in an agate or porcelain ves- sel and boil for five minutes or more. This is to destroy any germs in the water or alum. Let the solution cool and add sufficient freshly-boiled distilled water to replace what has evaporated from the original 200 c.c. Add the chloral hydrate and dissolve the hematoxylin crystals in 10 c.c. of ninety-five per cent, alcohol, and add to the mixture. Let it " ripen " for a week. If the stain is too concentrated, it may be diluted with freshly - distilled water, or with the mixture of water, alum, and chloral. If the stain is not sufficiently concentrated, add more hematoxylin. With the above sections are usually suf- ficiently stained in from one to five minutes. It has not been tested for bulk staining. "The boiling is to de- stroy any living ferments present in the water or alum, and the chloral hydrate is to prevent the development of germs which accidentally reach the solution after it is made." Benda's Hematoxylin^ for karyokinetic figures.- Treat the sections with a concentrated solution of cupric acetate for twenty-four hours, in a brood oven. Wash out thoroughly. Stain in a one per cent, aqueous solu- tion of hematoxylin till the sections are black. Extract the superfluous color in hydrochloric acid, 1 to 500, until the sections are yellow. Neutralize the acid in a satu- rated solution of cupric acetate. Wash. Dehydrate and mount. Cuccati's Alcoholic Hematoxylin :14 Iodide of potassium (C.P.) 25 gms. Distilled water 25 c.c. Dissolve and pour into absolute alcohol. 75 c.c. Keep in a tightly-stoppered bottle and shake repeat- edly. Bub together in a mortar, Crystallized hematoxylin 75 etgms. Alum (C.P.) (Neutral Potash) 6 gms. Add of the above iodine solution 3 c.c., keeping the mixture well stirred, and gradually add the rest of the iodine solution. Keep in a well-stpppered bottle and leave from ten to fifteen days. Then shake well and after an hour or two filter, and preserve the filtrate very care- fully to prevent evaporation and deposit of alum or iodide crystals. This fluid is said to stain only the chro- matic part of the nuclei, the color being most deeply fixed in the karyokinetic figures. As over-staining does not occur, the sections may be left in the mixture almost indefinitely, and it is therefore also suitable for bulk staining. It is stated that with proper care the solution never goes bad. Another Alcoholic HematoxylinM-Make the three fol- lowing saturated solutions: First, calcic chloride in seventy per cent, alcohol ; second, powdered alum in the same percentage of alcohol ; and third, hematoxylin in absolute alcohol. Mix one part of the calcic chloride solution with eight parts of the alum solution, and add the hematoxylin drop by drop until a deep purple color is obtained. The color becomes richer by time. If tis- sues have been hardened in any chromic or acid medium, they should be put into a five per cent, solution of sodi- um bicarbonate before staining; all trace of acid must be removed. Iodized Hematoxylin 16 (Sanfelice) : (1) Hematoxylin 0.7 gm. Absolute alcohol.. 20.0 gms. (2) Alum 0.20 gm. Distilled water 60.00 gms. After dissolving, solution (1) is poured drop by drop into solution (2). The fluid is then exposed to the light from three to four days. Ten to fifteen drops of the tincture of iodine are added and the fluid, well shaken up, is al- lowed to stand for some days. Tissues stain in this mixture in from twelve to twenty-four hours. They are then transferred to ninety per cent, alcohol acidulated with acetic acid, in which they remain for the same length of time. Sanfelice believes that this gives the same stain as Bohmer's hematoxylin with tissues previously treated with tincture of iodine ; it thoroughly penetrates pieces to be stained in Mo. Owing to its antiseptic qualities, it keeps longer than most hematoxylins. • Cochineal. - Cochineal for some purposes is un- rivalled. In aqueous solution it gives a greater richness of differentiation perhaps than alum carmine. In an alcoholic solution it gives a direct nuclear stain (Lee). Bartsch's Alum Cochineal11-An old formula ; its great utility for histological purposes is a sufficient justification for calling attention to it. Powdered cochineal is boiled for some time in a five per cent, solution of alum, the decoction is filtered, and a little salicylic acid added to prevent mould. Paul Mayer thinks that in some ways it is better than the well-known but later formula of Czokor. Mayer's New Cochineal Formula:18 Cochineal 5.0 gms. Calcium chloride 5.0 gms. Aluminium chloride 0.5 gm. Nitric acid (sp. gr. 1.20) 8.0 drops. Fifty per cent, alcohol 100.0 c.c. Pulverize the cochineal, and mix with the calcium and aluminium chlorides in a mortar. Add the acid and alcohol, and heat to boiling. Let the mixture stand a number of days, shaking frequently, and finally filter. The objects must be treated with fifty per cent, alcohol before and after entering the stain. Carmine.-Carmine is a most excellent nuclear stain, and pre-eminently adapted for staining in toto. The stain should have a slight alkaline reaction ; the presence of too much alkali is injurious, rendering the solution unstable ; the want of it, on the other hand, deprives the stain of very much of its differentiating effect. Fix the stain by treating with acetic or formic acid before de- hydrating and mounting the sections. In botanical preparations, carmine stains most vegetable albuminoids, while starch and cellulose take it up slightly, or not at all. To obtain the best results with carmine, especially am- monia carmine, on preparations hardened in bichromate, the tissue must be stained before going into alcohol1 Carmine is not readily soluble, even in water, without the aid of some other agent, e.g., ammonia or borax. Carminic acid, the basis of the coloring matter of cochi- neal and carmine, is readily soluble in either water or alcohol.* Paul Mayer 18 found, after some experiments, that if carminic acid, or, better yet, ammonia carminate, be treated with acetate of alum, all the acid is precipitated as alum carminate. This substance has the peculiar property of being soluble in either acids or solutions of acid salts (e.g., alum) or in alkalies, or in solutions of alka- line salts (e.g., borax). Water or very weak alcohol must be used for the solvent. An alum solution stains nuclei in the same way as does alum carmine. The borax solu- tion, though weaker, but with other things being equal, gives a redder color. The differentiation is very clear even when washed with water only. Mayer's Carmalum : * Carminic acid..:.................. 1 gm. Alum 10 gms. Distilled water 200 c.c. Heat the mixture and filter. The filtrate will remain clear if an antiseptic is added. The solution is of a light red color, shading toward violet. It is said to have good penetrating powers even in osmium preparations, and it is claimed that it is better than alum carmine for stain- ing in toto. Simply washing out with water is likely to leave the * For the various methods of preparins? carminic acid, see the paper bv George Dimmock, published in the American Naturalist, vol. xviii., p'. 324, 1884. 428 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Histological Formulae. plasma slightly colored ; if this is not desirable use a weak alum solution, or in more stubborn cases weak alcohol. If a less amount of alum is used in the solu- tion, a deposit will form after a time. As an equivalent for Grenadier's alum carmine, Mayer suggests a one-tenth percent, solution of carminic acid in a three to five per cent, solution of alum ; this may readily be made in the following proportions : Water 1,000 c.c. Alum 30 to 50 gms. Carminic acid 1 gm. Dissolve without heat. This is a weaker and cheaper solution than Grenadier's, and gives a redder tone to the tissue. The absence of heat is an advantage. Like the alum carmine it requires an antiseptic-a crystal of thy- mol. Mayer's Paracarmine: Carminic acid 1 gm. Aluminium chloride i gm. Calcium chloride 4 gms. Seventy per cent, alcohol 100 c.c. May be dissolved cold or warm. Let it precipitate, and filter. The solution is of a clear red color. Washing out with acid is said to be unnecessary either for sections or masses. If found desirable to wash out for surface views, use a weak solution of aluminium chloride in alcohol, or alcohol with about five per cent, acetic acid. The objects do not become so fiery red after treatment with acid alcohol as with borax carmine. The time limit of staining depends upon the objects. This is claimed to be preferable to borax carmine, because it is in a stronger alcoholic solution, therefore a better preserva- tive and not alkaline. The carmine formula? of Mayer have not yet been suf- ficiently tested to warrant a statement as to whether they are superior, or perhaps inferior, to some of the older formulae for carmine stains, or if, indeed, they are as valuable to the carmines in general as his hematein method is to the hematoxylins. An Alcoholic Acid Carmine: Carmine 4 gms. Hydrochloric acid 2 c.c. Seventy per cent, alcohol 100 c.c. Boil over a water-bath until dissolved, cool and filter. A good stain for general purposes. It is rapid in its ac- tion and differentiates well, and should be washed out with seventy per cent, alcohol. Strasburger's Borax Carmine :15 Borax « 4 gms. Distilled water 56 c.c. Dissolve and add carmine 1 gm. One volume of this solution is diluted with two volumes of absolute alcohol, and filtered. The nuclei stain with great clearness. Haug's Alum-Borax-Carmine :9 Carmine 1 gm. Borax 1 gm. Ammonia-alum 2 gms. Pulverize and add Liquor aluminis acetatis 100 c.c. Boil the solution for half an hour or more. Decant and filter after twenty-four hours. It is good for use in a few weeks. Said to stain sharper and clearer than alum carmine and to be more permanent, also useful for bulk- staining. Wash out in water. Haug's Ammonia-Lithium-Carmine: Carmine 1 gm. Ammonium chloride 2 gms. Pulverize and boil in water 100 c.c. After cooling add drop by drop, Liquor ammonii caustici 15to20c.c. Pure lithium carbonate 0.3 to0.5 (gm.?) The stain should be filtered. It colors intensely imme- diately after its preparation. The solution is very per- manent, and is especially recommended for preparations hard to stain. It gives a gorgeous strawberry-red color, and stains sections in from one to three minutes. Differ- entiate the over-stained sections in hydrochloric acid alco- hol, then put immediately into absolute (picric) alcohol. (SUPPLEMENT.) Delage's Osmic Carmine}9-Take a strong solution of carmine in ammoniacal water and evaporate it on a water- bath, until the appearance of red clouds on the surface indicates that the excess of ammonia has disappeared. After cooling, add an equal volume of osmic acid (one per cent.) and tiller under a bell-jar. A very dark fluid is thus obtained which has the staining properties of car- mine, and the fixative properties of osmic acid. At the end of some days this reagent loses its odor and becomes darker. The fixative qualities have disap- peared. It is best, therefore, to mix the acid and car- mine solution at the time of using. This mixture is said to bring out more minute anatomical features than gold chloride. Anilins.-Anilin 20 (C8H6NH2) is a colorless oil boil- ing at 183° C., partly soluble in water (1 to 31), and acts as a strong base, forming well-crystallized salts with acids. The anilin oils of commerce are a mixture of anilin with ortho- and para-toluidin (Benedict). When mixt- ures of anilin and toluidin are heated together with cer- tain oxidizing agents-such as arsenic, chloride of tin, mercuric chloride, etc.-among the various substances formed are two compounds named rosanilin and para- rosanilin. The dyestuffs under the anilin colors are derivatives of these. Benedict divides them into three groups : basic, acid, and neutral coloring matters. In dye- ing the basic are always used in the form of their salts i.e., of their compounds with mineral or organic acids. They all contain nitrogen atoms, and it is to the presence of these that they owe their basic properties. The acid contain hydrogen atoms, which can easily be replaced by metals. They possess the property of combining with bases to form salts with the simultaneous evolution of water. The neutral are not numerous, the only ex- ample given by Benedict is artificial indigo obtained from propiolic acid. The anilins are derived from coal-tar, and must be of the proper quality to be of any use in histology. Many are inconstant, and not to be depended upon for perma- nent results. Some are soluble in water, others in alco- hol only, and one must be largely guided in his selection of a dye by the method in which the tissue has been treated. It is believed that the dyes are best fixed with benzole, and that by the use of this fluid there is a greater probability of the colors remaining permanent in Canada balsam. These dyes, as a rule, are not adapted to bulk staining. Very few of them give a precise nuclear stain by the direct method. Two of them, methyl green and Bismarck brown, are pre-eminently nuclear stains. Some of the others may be made so with fresh tissues by combining them with acetic acid. The majority give a diffuse color, which in some few cases may result in a most precise and useful stain, by the indirect method-decolorizing. Lee classifies these dyes according to their use for di- rect or indirect staining-the latter is also known as the " Flemming " method. With the indirect method it is necessary to get as strong a solution as possible, and the sections must be very thoroughly stained. Up to a cer- tain point, the more the tissues are stained, the better do they resist the washing-out process, which is an advan- tage. Washing out is generally done with (ninety-five per cent.) alcohol, but it is well tojws< rinse the sections in water before bringing them into the alcohol. Clove oil will extract more color from the tissues, and it is there- fore better to use some clearing medium, such as cedar oil, bergamot oil, xylol, etc., which does not attack the stain. Victoria Blue.-The specimens fixed in "Flemming's mixture" for some hours are stained in a saturated aque- ous solution of the dye. Wash in pure alcohol, clear in cedar or bergamot oil. It is a brilliant and useful nuclear stain. Chromatin and nuclei are colored blue. The cy- toplasm is colorless if well washed out ; if not, green or greenish blue. The " spongioplasm " is very finely brought out by this method. The reagent has a special affinity for elastic fibres. For this Lustgarten recom- mends an alcoholic solution diluted with from two to four parts of water. It is believed that fixation in some 429 Histological Formulae. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. chromic mixture is a necessary condition. Stain for a long time. Safranin.-This is one of the most important of the anilin dyes, on account of its various degrees of electiv- ity for nuclei and other constituent elements of different tissues, and for its superior permanence in balsam. It is exceedingly necessary to have a good safranin. With no other stains are there, perhaps, so many grades. It is, therefore, quite essential to procure the dye from some reliable source. Griibler (Leipzig, Germany) supplies only such as have been found by experiment with tissues to furnish the desired stain. Miinder (Gottingen) also furnishes reliable dyes. Babes's Solution : Water 100 parts. Anilin oil 2 parts. Safranin to excess. The mixture should be warmed to from 60° to 80° C. and filtered through a wet filter. This solution will keep for a month or two. Zwaar demaker's Solution.-This is obtained by mak- ing a mixture of about equal parts of alcoholic safranin solution and anilin water (anilin water is simply a satu- rated solution of anilin oil-pure anilin-in water); shake up the two and filter. Cyanin (Quinolein Blue, Chinolinblau).-Cyanin should be dissolved in ninety per cent, alcohol and the solution diluted with an equal volume of water. (The dye must be dissolved in the alcohol, it will not dissolve in the di- lute solution.) This stain colors fatty matters an intense blue. As it has powerful staining qualities, it should be used in very weak solutions. It is said that if tissues be stained slowly in very dilute aqueous solution of cyanin they may be mounted in balsam and a fairly precise and nuclear stain may be obtained. This dye is also useful for staining Infusoria, which under certain conditions it stains during life. Congo Red^ {Gongoroth\-A.n "acid" dye, the aque- ous solution, however, having a neutral or alkaline reac- tion. It becomes blue in the presence of the least trace of a free acid. (A test for the acidity of tissues.) It is a diffuse stain, but seems to be used chiefly in staining axis-cylinders. Benzopurpurin.-Weak aqueous solutions should be used for staining, which is effected in a few minutes, then wash out with alcohol. Zschokke22 says that Ben- zopurpurin B., is the very best contrast stain to hema- toxylin known to him, because it is not apparently affected by alcohol, or the usual clearing agents. Deltapurpurin.-This is of a more purple red, having properties similar to those of Benzopurpurin, and may be used in the same way. Benzoazunn.^-This dye is used in dilute aqueous so- lutions. The sections are over-stained and decolorized with one-half to one percent, hydrochloric acid alcohol. If a nuclear stain is desired, the sections should be with- drawn when the celloidin has become bleached. If the tissue-elements are also to be stained, they should be taken from the acid alcohol a little earlier. A beautiful blue nuclear stain is obtained, which is quite as distinct and sharp as that given by hematoxylin or carmine. Two points are made for this dye : (1) that it stains very read- ily old alcoholic preparations ; (2) that preparations con- taining picric acid are little or not at all affected. Eosin {Erythrosin, Primrose soluble, Pyrosin B., Rose B. d I'eau).-Eosin is obtained by the action of bromine upon fluorescine, and is chiefly used as a contrast stain to hematoxylin. Lee suggests that a solution of eosin in anilin water might give results very different from those obtained from the ordinary solutions. Most prepara- tions of eosin are soluble in both alcohol and water ; some, however, are soluble only in alcohol. Picric Acid.-This is very useful for secondary or ground staining in connection with hematoxylin and various carmine solutions. It has considerable power of washing out anilins, and great care must be used in this connection. For Fresh Tissues.- Methyl Green (Methylanilin Green, Vert Lumiere, Lichtgrun, Grunpulter, Vert en (SUPPLEMENT.) Cristaux).-A most excellent nuclear dye. It should be used in the form of a strong aqueous solution containing a little acetic acid (about one per cent.). The solutions must always be acid. Wash with water (may be slightly acidulated) and mount in some acid aqueous medium containing a little of the methyl green in solution. In the nucleus it stains nothing but the chromosomes or nuclein element, leaving the nucleoli, caryoplasm, and achromatic filaments untouched. Outside of the nucleus it stains some kinds of cytoplasm and some kinds of formed material, especially glandular secretions. Extra- nuclear structures are in general stained in some tone of blue-violet. Staining is instantaneous, over-staining never occurs. The solution is very penetrating, killing cells instantly without swelling or other change of form, and preserving their forms for at least some hours, so that it may be considered a delicate fixative. It is a most useful reagent in amyloid degeneration. " Un- doubtedly methyl green is one of the most valuable stains yet known." Schneider's Aceto-carmine.™-An old formula, but most admirably adapted for fresh tissues. To boiling forty-five per cent, acetic acid, add as much carmine as will dis- solve. (Forty-five per cent, holds the greatest amount of carmine.) It may be used in a weak solution-diluted to one per cent.-or strong. The latter fixes and stains at the same time, and is very penetrating, a quality which renders it of much use where common reagents would often fail. The stain is a pure nuclear one. Bismarck Brown {Manchester Brown, Phenylin Brown, Vesuvin, La Phenicienne).-The dye is not easily soluble in water. It may be boiled, and filtered after a day or two, or acetic acid added (the acid destroys the perma- nency of the stain), or alcoholic solutions may be used. A convenient form is the following :25 Bismarck brown 2 parts. Alcohol 15 parts. Distilled water ; 85 parts. The solution gives a light oak tint and forms a pleasing contrast to safranin or hematoxylin. The mixture must be filtered often. The dye never over-stains and is rapid in its action. It is a fairly pure nuclear stain, and will work well either with fresh tissues or with such as have been hardened in chromic acid. It also possesses the property of staining cellular elements during life, but must be pure and neutral. For general purposes the ad- dition of carbolic acid has been recommended. Trinkler's Vegetable Stain.26-The staid is obtained by extracting the chlorophyll from the leaves of Syringa vulgaris by means of alcohol. After twenty-four hours the filtered extract is evaporated to dryness and the resi- due dissolved in water. The solution is of a dark-green color tinged with brown. Double Staining.-Genevan Reagent.™-Under this name is recommended a double-staining reagent found usefid in the differentiation of vegetable tissues. It con- sists of a slightly alcoholic and ammoniacal solution of Congo red (two per cent.) and chrysoidin (one-fifth per cent). The section is first decolorized by eau de jarelle and then immersed in this reagent for a few seconds, when a beautiful double or triple staining is obtained. New Method of Double Staining 28 (Pianese).-There is first prepared a saturated solution of nigrosin in a satu- rated solution of picric acid in alcohol (Martinotti's solu- tion). Two parts of this solution and one part of anilin water are next mixed and allowed to evaporate in the open air. The crystals deposited from this are dissolved in absolute alcohol. From the latter solution are ob- tained cubical crystals of an olive-green color, soluble in waler, alcohol, or ether. With these crystals is made a two per cent, solution in alcohol for tissues, in water for micro-organisms. The sections are first stained with Beale's carmine or Orth's lithium carmine, and having been treated with acidulated alcohol are washed and dehydrated. They are now immersed from two to ten minutes in the alco- holic solution of picro-nigrosin, until they assume a brown hue. They are«next decolorized in an alcoholic solution of oxalic acid, dehydrated, cleared, and mounted. 430 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) HiHtoIogical Formulae. The nuclei are stained red ; the plasma, a dark yellow ; connective tissue, a pale green ; elastic fibres, violet, and cartilage yellow. If it is desirable to stain micro-organ- isms at the same time as the tissues, the sections are, after having been stained with carmine, decolorized by Gram's method, or by the Koch-Ehrlich method for tubercle bacilli, and then are immersed for five minutes in the aqueous solution of picro-nigrosin, and the process con- tinued as above. Kossinskiis Safranin and Indigo Carmine.'29-Stain the sections from ten to twenty minutes in a saturated aque- ous solution of indigo-carmine, wash with water and with alcohol and stain with safranin (0.5 per cent, in dilute alcohol), dehydrate, and mount. "Metallic " Stains.-The discussion of this group of stains will be limited to those applicable par excellence to the nervous system, and will be treated of under the head of staining nervous tissue, in conjunction with certain other stains. " Intra Vitam" Stains.-A very few dyes possess the peculiar property of staining the cells of living tissue without any very evident impairment of their powers. They are cyanin, methyl blue, Bismarck brown, Congo red, and under certain conditions dahlia and gentian vio- let, and some others whose action is as yet insufficiently known.* The dyes must be used in an extremely weak neutral or alkaline solution, Congo being an apparent exception in that it is among the " acid " anilins and may be used in quite strong solution. Of all these methyl blue has re- ceived the greatest amount of attention on account of its special affinity for the peripheral nerve-endings. This dye will also be treated of under stains for nervous tissue. Staining Nervous Tissufi.-Impregnation.-Ramon y Cajal's30 modification of Golgi's short silver nitrate method. Small pieces of the brain or myel are fixed in the following solution : Potassium bichromate 3 parts. Osmic acid, one per cent 25 parts. Distilled water 100 parts. Use plenty of the solution and change at least twice during the first day, keeping in the dark. Embryonic or adult tissue may be used, the former giving perhaps the best results ; since the fibres are as yet deprived of their myeline, the silver is more readily deposited in them. It should be left in the solution from twenty-four to forty- eight hours. Older tissue should remain two or three days. The hardening process is of very great impor- tance : if it is insufficient the silver later will form a granulous precipitate ; if the hardening be too great, the precipitate will not occur at all. After hardening, the tissue is washed in 0.25 per cent, solution of silver nitrate for fifteen minutes. It is then brought into a 0.75 per cent, solution of silver nitrate, to which has been added a little formic acid in order to favor the reduction of the silver. For the best results some care must be used as to the amount of the acid used. Van Gehuchten recommends one drop to each 100 c.c. of the fluid. The tissue may be left in this silver solution from thirty-six to forty-eight hours. A longer stay does not ruin it. If the hardening is of the proper degree, the silver nitrate will be deposited with extraordinary fineness in the nerve protoplasm as silver bichromate. The process thus far should have been carried on in the dark. Kolliker recommends placing in forty per cent, alcohol before cutting free-hand, or better dehydrate in one hun- dred per cent, alcohol for one hour, then in celloidin one hour, and after an hour or two of hardening cut in the microtome. Put sections in creasote for a quarter of an hour, then in turpentine, and mount in xylol balsam without cover-glass. It is desirable that the imbedding process should be as short as possible. Van Gehuchten31 transfers the specimens from the silver bath directly to strong alcohol, where they are left from fifteen to twenty minutes, then about a quarter of an hour in absolute al- cohol. They are left about the same length of time in a solution of celloidin, then fastened to a holder and put into seventy per cent, alcohol to harden. According to this process, sections can be cut in about an hour from the time the specimen has left the silver solution. On account of the difficulty of obtaining successful silver precipitates in the sympathetic nervous system by the ordinary method, Ramon has suggested that double or even triple impregnations be made by re-immersing the tissue in the osmium-bichromate mixture, after it has passed through the silver baths. The reaction is said to be much more constant. If a cover-glass be placed upon the balsam while it is yet soft, the sections soon become blurred or decolor- ized, the supposed reason being the irregular drying of the balsam causing a diffusion stream that carries off the silver precipitate. Greppin32 uses hydrobromic acid to prevent this. As recommended by Ramon y Cajal, it is well to put the slides after mounting in an oven heated to about 40c C., so that the balsam may dry as rapidly as possible. Huber33 employs a cover-glass after the fol- lowing manipulation : The sections are mounted in tur- pentine balsam. The slide is held over a flame and gradually heated to avoid the formation of air-bubbles and to drive off the turpentine vapor, until the balsam is so thick that when cooled it becomes hard immediately. On the hot balsam a heated cover-glass is now lightly dropped and the preparation is said to remain durable. Martinotti34 has recommended the addition of five per cent, glycerine to the silver solution as favoring the re- action with the ganglionic cells and their nervous pro- longations, and for obtaining preparations of extreme delicatesse. To prevent surface precipitates, he uses a pap of blotting-paper prepared in distilled water. The silver method35 colors deep black the nerve-cells with their protoplasmic processes and all non-medullated nerve-fibres, the neuroglia cells and their extensions a reddish-brown, while the vessels assume more of a red- dish cast. At times certain lymph-spaces and a few me- dullated nerve-fibres are also colored. It is not yet settled whether the coloration depends upon an impregnation of the cell-bodies with the silver salt, or if it is simply an incrustation. Golgi, Ramon y Cajal, and Kolliker hold to the first idea ; it is only certain that with the non- medullated fibres it is an impregnation. The order in which the parts color most readily is as follow's : the nerve-fibres, the protoplasmic processes, the nerve-cell bodies, the neuroglia cells, and the blood-vessels. Golgi's Sublimate Method.™-An old but useful method. Very briefly, it consists of hardening the nervous tissue for fifteen or twenty days in potassium bichromate, and then passing it directly over to 0.25 or 0.50 per cent, solu- tion of mercuric chloride. This is renewed as often as it becomes yellow, and the tissue should remain in the mercuric solution at least ten days. A longer stay will probably improve the results. The sections should be cut on a freezing microtome, and afterward thoroughly washed in water to avoid the formation of a black pre- cipitate. They are best preserved by mounting in gly- cerin. The method is useful in demonstrating the nerve- cells with their processes, also the nuclei, and sometimes the blood-vessels. The sublimate seems to be more limited than the silver nitrate method, as the more favorable results are obtained only from the cerebral cortex. Signor Tai31 modifies the above method by after- treatment with sodium sulphide. The mercury is changed into sulphide and the preparations become blackened ; the tissue that has not undergone the influ- ence of this reaction is stained with a solution of Mag- dala red. The silver method is also said to be improved by this after-treatment with the sulphide. Magini38 recommends the substitution of zinc chloride in 0.5 to 1 per cent, solution for the sublimate. Sec- tions are washed quickly in alcohol, imperfectly cleared with creasote, and mounted in damar. The process is said to demonstrate better than Golgi's ♦ For a fuller discussion of this question, see Martinotti's paper. Zeit. f. Wiss. Mik., v., 305 (1888). 431 Histological Formulae. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) the finer structure of ganglion cells and their pro- cesses. Cox's Sublimate Impregnation.™-The hardening and impregnating fluids are combined and allowed to act to- gether for two or three months. The mixture is as follows : Five per cent, potassium bichromate.. 20 parts. Five per cent, mercuric chloride 20 parts. Five per cent, potassium chromate.... 16 parts. Distilled water 30 to 40 parts. The reaction of the fluid should be as slightly acid as possible. The preparations are not permanent under a cover-glass in Canada balsam or damar, on account of the acidity of the medium or some other unknown cause. The sections must be cut in a freezing microtome. They are placed for an hour or two in a five per cent, solution of sodium carbonate, washed in water, placed for a short time in absolute alcohol, then in some oil, and final- ly covered with some rapidly drying resin [sandarac ?]. If they must be covered with a glass, the resinous layer should be allowed to dry and then covered with castor-oil. Then the cover-glass is put on and squeezed down so as to squeeze out the superfluous oil, or by us- ing styrax, or a mixture of gum arabic and water, etc., the preparations may be kept intact under a cover-glass. Obregia's Gold Modification of Golgi's Methods.40-The sections are transferred from absolute alcohol to the fol- lowing solution : Gold chloride, one percent 8 to 10 drops. Absolute alcohol 10 c.c. This should be made half an hour previous to use and exposed to diffuse light. When the sections are put into it, the containing vessel should be placed in the dark. In from fifteen to thirty seconds or longer the silver is gradually replaced by the gold, or the mercury changed into gold amalgam. The sections are quickly washed, first in fifty per cent, alcohol, then in distilled water, and finally in a ten per cent, solution of hyposul- phite of soda for ten or fifteen minutes, and then washed in distilled water thoroughly. Too long an immersion bleaches so that the finer fibres disappear. The sections, after the proper degree of toning, may be stained as de- sired (Weigert's, alum carmine, etc.), and mounted in Canada balsam with cover. Paladino's Palladium Chloride Method.4'-Small pieces, 5 mm. thick, of the neuraxis, previously hardened in bi- chromate or sublimate, are left for two or three days in a one-tenth per cent, solution of palladium chloride, a trace of hydrochloric acid being added to insure the complete solution of the salt. The pieces are then trans- ferred to a four per cent, solution of potassium iodide and left for an hour or two, then dehydrated and im- bedded in paraffine. The paraffine is removed by xylol and the sections mounted in balsam. The reaction is favored by keeping in a dark place. The method is also applicable to the peripheral nervous system, and demon- strates the axis-cylinders particularly well. Monti's Copper Method.™-Small pieces of nervous tis- sue are hardened in two to three per cent, bichromate or Miiller's fluid, until they become quite firm. They are then immersed in a mixture of equal parts of a solution of copper sulphate and Miiller's fluid. The reaction takes place after twenty-four hours. The stained ele- ments appear of a blackish-yellow color in transmitted light, and of a reddish color in direct light. The reaction has been obtained in the small nerve-cells of the cortex and of the cerebral ganglia, in the small nerve-cells of the molecular layer of the cerebellum, and in the cells of the olfactory bulb, and in the fibres and neuroglia cells. Berkley's Osmium ■ Copper • Hematoxylin Stain.43 - A rapid Weigert method. Small pieces of the cerebrum, cerebellum, or myel, not more then 2.5 mm. thick, are fixed in Flemming's solution from twenty-four to thirty hours, in a temperature of 25° C., and then without wash- ing transferred directly to absolute alcohol, which is changed twice during the following twenty-four hours, then placed from twelve to twenty-four hours in cel- loidin. The knife must be well moistened with alcohol, and the sections must be very thin. They are washed in water and then brought into a saturated solution of cop- per acetate, and allowed to stand overnight in a small covered vessel; or, if it is desirable to expedite matters, the vessel containing the sections may be put on a water- bath and heated to a temperature of 35° to 40° C. for twenty-five to thirty minutes, and the copper solution al- lowed to cool. The sections are washed again in water for a very short time, and finally carried into a hematoxylin solu- tion which is prepared as follows : 50 c.c. of distilled water are boiled thoroughly for a few minutes in a flask and 2 c.c. of a saturated solution of lithium carbonate added ; allow the boiling to continue a minute longer, and then add 1.5 to 2 c.c. of a ten per cent, solution of hema- toxylin in absolute alcohol. The flask is then shaken and corked, and placed aside to cool. It is better to pre- pare small quantities of the solution as needed, since it deteriorates somewhat. The solution can be used at once, but it is better to allow it to stand for a day. After staining, the sections are thoroughly washed and put into Weigerl's differentiating fluid of borax and potassium ferrocyanide, which may be diluted one-third with water. This decolorizing is an important part of the process. It is necessary that the fluid should penetrate the tissue quickly and that its action be not too long continued, otherwise a number of the finest medullated fibres will become decolorized. Usually one to three minutes are sufficient for the purpose. After decolorizing, wash the sections two or three times in water, then in alcohol, bergamot oil, and mount in xylol balsam. Sections pre- pared according to the above method should be of a blackish-brown color ; the differentiation between white and gray substance is as clearly seen as with Weigert's method. Under the microscope the medullated fibres should appear blue-black-brown, the glia-substance yel- low, and the nerve-cells colorless ; or in case the chrome salts have not been completely reduced, some or all cells with their processes appear of a brownish-biack color. Ziehen's Method.44-The pieces of nervous tissue are to be placed for five weeks in a mixture of equal parts of one per cent, chloride of gold and one per cent, corro- sive sublimate. The pieces are then sectioned in dilute lugol (one-quarter per cent.) solution. The medullated or non-medullated fibres, the nerve-cells, and the neuro- glia cells are colored blue. In the ganglion cells the nucleus and nucleolus are clearly differentiated. Benda's Picric Acid Method.19-Small pieces of nervous tissue are placed for two or three days or longer in a saturated aqueous solution of picric acid, washed in water, and the hardening continued in alcohol. Paraf- fine is preferred for imbedding, celloidin not giving good results. The sections are made as thin as possible and placed for some hours in a concentrated solution of iron sulphate (mordant) ; after careful and repeated washings they are transferred to a one per cent, aqueous solution of hematoxylin until they become of a deep-black color (about ten minutes). They are then bleached for about five minutes in chromic acid (1 to 2,000), washed well in water, dehydrated, and mounted in balsam. It is stated that not only are the fibres but the intimate structure of the ganglion cells made evident. Upson's Gold Method for Axis-Cylinders and Nerre- Cells.^-Pieces of the neuraxis are hardened in the dark for four to six months in potassium bichromate, begin- ning with one per cent, and increasing to two and one- half per cent. Wash in water and complete the harden- ing by putting into fifty per cent, alcohol for the first two or three days, ending with ninety-five per cent, until the pieces are of a greenish color. Sections may be made with or without imbedding, but must be thoroughly de- hydrated before proceeding. First method : Place the section for one or two hours in a one per cent, gold chlo- ride solution to which two per cent, hydrochloric acid has been added. Wash in distilled water, transfer on platinum or paper lifter to the following solution : Ten per cent, solution potash 5 c.c. Ferricyanide of potassium a trace. 432 DEFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Histological Formula:, (SUPPLEMENT It is said that Weigert's ordinary method can also be usefully applied to lymphatic glands and skin. Hill's Modification of Weigert's Method.™-The object of the method is to render the nerve-cells and non-medul- lated fibres susceptible to the stain by previous treat- ment with carmine alum, or simply an alum solution. For good results the following process must be rigidly carried out: (1) Pieces of brain or myel are placed in a two per cent, to a two and one-half per cent, solution of potassium bichromate for six weeks. (2) The bichro- mate is washed out with an abundance of thirty per cent, alcohol, changed daily until no further color comes from the tissue. (3) The hardening of the tissue is com- pleted in strong alcohol. (4) Pieces of convenient size are placed in water to remove the alcohol, and then for two days in a solution of carmine alum, prepared as fol- lows : Place in a shallow dish carmine, potash alum, and distilled water. Boil for three hours, restoring the water to its original level from time to time as it evaporates. Both carmine and alum should be in excess. When cold the solution is decanted and filtered. (5) The tissue is then cut and the sections placed for twenty-four hours in a half-saturated solution of copper acetate. (6) The sections are then placed in the hematoxylin for eight hours at a temperature of about 40° C. (7) Decolorize to exactly the right degree in Weigert's bleaching solution diluted with an equal volume of water. It is safe to as- sume that the matrix of the tissue and the celloidin are decolorized at the same time. Vasale's Modification of Weigert's Method.9-Three solu- tions are required : (1) Hematoxylin, one gm., dis- solved in one hundred gms. of water by the aid of heat. (2) A saturated filtered solution of neutral acetate of copper. (3) Borax 2 gms. Ferricyanide of potassium .... 2.5 gms. Water 300 gms. The sections are removed from alcohol to solution (1) for three to five minutes, then for same length of time in solution (2), whereon they become black. They are washed quickly in water, and transferred to solution (3), wherein the ganglion cells, the neuroglia and degen- erated parts are quickly decolorized, the medullated fibres remaining of a dark-violet color. Finally, the sec- tions are washed thoroughly in water, dehydrated in ab- solute alcohol, cleared in carbol-xylol (three parts xylol to one part carbolic acid) and mounted in balsam. Alum or picro-carmine or Pal's method are recommended if a contrast stain is desired. Mallory's Phospho molybdic Acid Hematoxylin ;48 Ten per cent, solution of phospbo-molyb- dic acid . 1 part. Hematoxylin crystals 1 part. Water 100 parts. Chloral hydrate 6 to 10 parts. Let the solution ripen for a week exposed to the sun- light. Filter before using ; it can be used repeatedly. The sections stain in from ten minutes to an hour. Wash out in forty per cent, to fifty per cent, alcohol, changing two or three times. The celloidin becomes perfectly colorless. Then dehydrate and mount as usual. The best results are perhaps obtained by staining rather deeply for about thirty minutes and washing out thoroughly for thirty minutes or an hour. The gan- glion cells and their processes, axis-cylinders, and neuro- glia (seen especially well around the central canal of the myel) are all sharply stained of a deep blue color. If the specimens are left too long in the alcohol they lose their sharpness and clearness of detail. The staining fluid must be kept free from alcohol. The chloral hy- drate retards deterioration. If the solution does not stain deeply enough, add a little more hematoxylin (Fig. 272). Kultschitzky'8 Hematoxylin.'1-Simpler than Weigert's. Pieces of brain or cord are hardened in Muller's or Er- licki's fluid and imbedded in celloidin. The sections are then placed in the following solution : Hematoxylin (dissolved in a little alcohol).. 1 gm. Sat. aqueous sol. of boracic acid 20 c.c. Distilled water 20 c.c. Wash in this for half a minute, then thoroughly in dis- tilled water, and transfer to the following : Acid, sulfurosum 5 c.c. Tinct. iodi (three per cent.) 10 to 15 drops. Mix and add liq. ferri chloridi 1 drop. Let the section remain in this until it assumes a rose color. It is then washed thoroughly in distilled water, dehydrated in absolute alcohol, oil of cloves, and balsam. Second Method : The section is immersed for two hours in the following solution : One per cent, chloride of gold 5 c.c. Ammonium vanadicum (sat. sol.) 10 drops. Acid, hydrochlor 3 drops. After washing in distilled water it is immersed from thirty to sixty seconds in the following: Ten per cent, caustic potash 5 c.c. Ammonium vanadicum a trace. Ten percent, permanganate of potash.... 10 drops. The section is again washed and put in the following fluid: Tin solution 15 drops. Distilled water 3 c.c. Iron solution 3 to 5 drops. Acid, sulfurosuin 3 c.c. The tin solution is obtained by adding chloride of tin to three per cent, tincture of iodine, until the color be- comes white or yellowish. The iron solution is a satu- rated solution of ferrum phosphoricum in distilled water. When the section has become red it is treated as in the first method. It is said that the results are splendid. Marchi's Solution:46 Muller's fluid 2 parts. One per cent, osmic acid 1 part. Of great value in pathology in staining nerve-fibres in the earlier stages of degeneration, before sclerosis sets in (especially a few days after the establishment of a lesion). The degenerated medullated fibres are stained black while the rest remains almost uncolored. It is better to put thin pieces of the brain or myel into a large quantity of the solution (after previous hardening for ten days in Muller's fluid), and to leave them in it for a week or more ; sections can also be stained by immersing in the above solution for a few hours. The further process is, as usual, mounting in Canada balsam. Weigert's Method without Decolorizing.-The tissue is hardened in Muller's fluid and treated in the usual way with eighty-five per cent, alcohol, and then an equal length of time in absolute alcohol; then it is transferred to celloidin and finally imbedded. An important part of the process is the coppering. The imbedded pieces are allowed to remain for twenty-four hours in a mixture of equal parts of a seven per cent, to ten per cent, solution of sodium tartrate and a cold saturated solution of cop- per acetate, which is kept at an equable temperature of 38° to 40° C. They are then transferred to a mixture of equal parts distilled water and saturated solution of cop- per acetate for twenty-four hours, also in the incubator. The pieces may then remain in eighty per cent, alcohol until cut. The sections must be very thin to produce a sharp differentiation. The staining fluid is composed of one part of the or- dinary alcoholic hematoxylin solution (one to ten), as used for the old method, and nine parts of an aqueous solution of lithium carbonate. This mixture should be prepared as needed. The sections remain in the stain from four to twelve hours. They are then thoroughly washed in distilled water, dehydrated in ninety per cent, alcohol and cleared, first in anilin-xylol (two to one), and afterward in clear xylol, and mounted in xylol balsam. Care must be taken to employ the best balsam, otherwise the color will gradually fade from the specimens. If it is desirable to have the ground-work particularly light, the preparations can be washed in a very weak solution of acetic acid (i per cent, to i per cent.), but a longer stay in distilled water usually suffices. The advantages claimed for this method are, that it dispenses with the tedious process of differentiation, and brings out more dis- tinctly than the old method the finest medullated fibres, and the distinction between these fibres and the cells and other components of the tissue is more plainly marked. 433 Histological Form ulre. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) took the stain. Arnstein 52 found in 1887 that the motor nerves and other elements stain as well, but later. The stain has already cleared up many doubtful points, and promises a solution to the nerve-ending problem. Useful as is Golgi's method in this connection, the methyl blue is in some ways superior to it. The stain seems to be more favorably adapted to the lower forms (cold-blooded). Mammals and birds soon die after the injection, and a true intra vitam reaction is not easily obtained. The living tissue soon throws off the color unless some restraining agent is used. Iodine, picro-carmine, corro- sive sublimate or picrate of ammonia may be used for this purpose. Various methods are employed with greater or less success. That of Professor S. Mayer29 is among the recent ones, and probably as successful as any. The pro- cess consists essentially of two parts: first, the staining of the tissue, and second, the fixation of the stain. The staining solution is made by dissolving one gm. of the methyl blue in 300 to 400 c.c. of a one-half per cent, salt solution. The "fixing" solution is composed of a cold saturated solution of picrate of ammonia diluted with an equal volume of pure glycerin. The staining fluid is in- jected into a blood-vessel of the animal, or pieces of the fresh tissue are soaked in the fluid, or the animal itself im- mersed in the solution without immediate danger to life. The amount injected varies with the size of the animal. Six to eight cubic centimetres41 are generally sufficient for a frog, the coloring usually taking .place in from one to three hours. Small pieces of the object are im- mersed in the picro-glycerin, and are at once ready for examination. If suitable for a permanent preparation, the cover can be fastened down with a mass composed of equal parts of wax and resin. The picro-glycerin changes the color, all shades of red, brown, and black being seen in the axis-cylinders and the non-medullated terminal nerve-expansions. This is compensated for by the clearing up of the preparation and the permanency of the stain. The method is simple and rapid. Small pieces, as fresh as possible, are placed for about ten min- utes in the methyl blue solution; they are then well washed in a one-half per cent, solution of salt and examined at once in the picro-glycerin ; the operation being complete in about thirty minutes. Professor A. S. Dogiel0 has found that the addition of osmic acid to the picrate of ammonia solution is attended with several advantages, in that it hardens the tissue just a little and stains the medullary sheath of nerves black. The solution is made by adding 1 or 2 c.c. of a one per cent, osmic acid solution to 100 c.c. of a saturated aque- ous solution of ammonium picrate. The stain is fixed by immersing the preparation in this mixture from eighteen to twenty-four hours. It is then transferred to glycerin diluted with an equal volume of water, in which the color of the nerves will keep for a long time. If it is desirable to render the object firmer for sectioning, a stronger solution may be used as follows : Picrate of ammonia (sat. sol.) 25 to 30 c.c. One per cent, osmic acid 1 to 2 c.c. The specimen remains in this for twenty-four hours, after which it may be imbedded in elder pith, liver, etc., and sectioned. Parker's Method of Imbedding Methyl Blue Preparations in Par affinep-A concentrated aqueous solution of corro- sive sublimate was found to be the best fixative for the stain. The object was left in this for about ten minutes. It was then dehydrated for fifteen minutes in solution (A) made as follows : Methylal 5 c.c. Corrosive sublimate 1 gm. The next step is to remove the sublimate and replace gradually the methylal by xylol. To accomplish this the object is put for ten minutes into the following solution (B): Methylal 1 vol. Solution A 1 vol. Xylol 2 vols. It is then transferred to an abundance of xylol for four or five days, and then it may be mounted as a trans- parent specimen in xylol balsam, or imbedded in paraffine A little acetic acid is added before using (two or three drops to a watchglassful). The sections should stain some few hours. The medullated nerve-fibres are stained blue, the rest of the tissue yellow or yellowish-red. If the sections are then placed for twenty-four hours in a saturated aqueous solution of carbonate of sodium or lithium, the nerve-fibres become dark blue, while all the rest becomes almost uncolored. Then pass through alcohol and mount in balsam. A still more simple hematoxylin solution which is said to give the same result is : Two per cent, acetic acid 100 c.c. Hematoxylin (dissolved in a little al- cohol 1 gm. Schmaus's Stains for the Axis-Cylinder in Sections of the Spinal Cord.49-Gierke's method is modified as follows : After previous hardening of the tissue in Muller's fluid, the sections are stained in the following solution : Carminate of soda 1.0 gm. Nitrate of uranium 0.5 gm. Water 100.0 c.c. The solution is heated for half an hour and filtered when cold. The sections are left in the fluid for fifteen to twenty minutes, and then washed in water. The axis- cylinders take the stain well, leaving the celloidin unaf- fected. Fig. 272.-Purkinje's Cell. Another method is to stain the axis-cylinders with English blue-black. The solution consists of one-quarter per cent, blue-black in fifty per cent, alcohol, with a little picric acid added. After an immersion of one hour the sections are washed and mounted. Sig. C. Negro 60 has recommended a stain for the de- monstration of the motor nerve-endings in striated mus- cle. It is practically Delafield's hematoxylin with some of the proportions slightly changed. The preparations are teased out on a slide, stained, washed, and mounted in a mixture of equal parts of glycerin and water. Apathy's method29 for differentiating nervous and connective tissues consists of staining with Heidenhain's hematoxylin, and after-staining with very weak alum hematoxylin. Methyl Blue.-Since the introduction of methyl blue as a staining agent for living tissue by Ehrlich41 in 1885, with its special affinity for the peripheral nervous system, and the sensory fibres in particular, many new and important contributions have been given to science. It was at first believed that only the axis-cylinders of the sensory fibres 434 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Histological Formula!. (SUPPLEMENT.) and cut in the usual manner. Ilie sections should be fixed to the slide with Schallibaum's collodion. Mayer's albumen discharges the color. It is said that after an interval of a month the finer details of the specimen are likely to fade. Blood. Biondi's Method.-The aim has been to find a method which would preserve the morphological ele- ments intact by means of good fixation, preservation, im- bedding, and mounting, or to treat blood as a solid tissue. The process is equally useful in the study of other fluid tissues, and has been successfully applied to the study of the maturation of the spermatozoa, and, as suggested by the originator, may doubtless be used to advantage in the study of the Infusoria. The material used for imbedding is agar, the columnar form {Saulen Agar) is considered the best. Long and explicit directions are given for the preparation of it, which may be consulted in Biondi's paper in the Archiv fur Mikroskopische Anatomic, vol. xxxi., p. 103 (1887), or in an abstract of the paper pub- lished in the American Naturalist, vol. xxii., p. 379 (1888). The essential points are to get a very clear prep- aration and to keep it sterile until used. By the aid of a pipette blood is taken from the heart of a frog, and two drops of it allowed to fall into 5 c.c. of two per cent, osmic acid. Shake immediately in order to scatter the corpuscles; after standing a few minutes the corpuscles will sink to the bottom of the vial, the deeper layer being formed mainly of the red ones, since their spe- cific gravity is greater. They are left in the acid from one to twenty-four hours. When fixed, four to five drops of the mixture are dropped into the melted agar. By rotating the tube the corpuscles are distributed through the agar, the whole mass is poured into a paper box (as in paraffin) and allowed to stiffen. It is put into eighty-five per cent, alcohol for hardening, where it remains from three to six days, until it becomes hard enough to section, when it may be enclosed in elder pith and cut; or if finer sections are desired, the block of agar is transferred from the eighty- five per cent, alcohol to oil of bergamot for twenty-four hours, then direct to soft paraffine kept at a temperature of 45° C. After one or two hours the process may be completed in the usual way. The paraffin satur- ates the block, and the sections may be freed from the paraffin by the usual solvents and then stained. Almost any stain is suitable. Methyl green, methyl blue, fuchsin, and safranin, are mentioned as giving very reliable re- sults. The agar itself does not stain, except with the most intense anilins (e.g., gentian violet), but may be most easily decolorized with alcohol or any other bleach- ing fluid. The sections may be cleared in the ordinary clearing reagents except xylol, which causes the sections to curl. Mount in balsam or damar. Auerbach's Method for Amphibian Bed Blood Corpus- cles. 64-It is claimed that the corpuscles are invested with a colorless membrane. By allowing a drop of blood, carefully protected from loss of fluid, to stand for some hours, the substance of the corpuscle after a time recedes from the membrane, and the addition of a little physiological salt solution causes the membrane to swell up like a bladder. Hardening in a saturated picric acid solution and subsequent washing with water is said to demonstrate this still better. If such a preparation be stained with eosin and anilin blue, the membrane takes on the blue stain, and the adjacent layer the red. The membrane can be made to swell up and burst, allowing the contents to escape, leaving the empty sac behind, by treating with 0.1 per cent, to 0.25 per cent, solution of sublimate, one per cent, solution of boracic acid, one per cent, sodium chloride, or two per cent, to ten per cent, chromate of ammonia. Two parts are noted in the cell- body, a cortical and a medullary substance. The cortical portion in unstained sublimate preparations appears of a structureless homogeneous substance, colored reddish- yellow by the haemoglobin. It is said to contain all the haemoglobin of the corpuscle. This cortical or haemo- globin layer also has a peculiar contractility, which causes a wrinkling of the surface. In picric acid preparations, the cortex shows a very beautiful network, an unnatural condition due to the formation of vacuoles. The medullary substance is colorless. In sublimate preparations dark granules appear scattered about. In picric preparations it appears clear like a large hole. In the nucleus are imbedded several nucleoli. In liana from eight to sixteen are found, in the Urodeles still more,.and in Triton tceniatus as many as forty. In the Urodeles their diameter is from 1.2 to 2 g. As a rule, they are not connected with each other, so they do not form the junction-points of a network. In the adult animal these nucleoli usually stain blue ; hence they are termed cyanophilous. In the larval condition a few of them will stain red (erythrophilous); while at a still earlier stage, there is but a single large nucleolus composed of both substances. Gages Method of Demonstrating Fibrin Filaments.™- A drop of fresh blood is placed on a cover-glass or slide, arranged as in B or C, Fig. 273. The preparations are then put into the moist chamber A to prevent drying. After ten to thirty minutes a drop of water is drawn Fig. 273.-Fibrin Apparatus. A, Simple Moist Chamber ; B, bowl serving as bell-jar ; P, plate containing water; S, slides holding the preparations. They rest upon a bench made by cement- ing short pieces of large glass tubing to a strip of glass of the desired length and width. B, Cover-glasses, made Eccentric (C) for more Convenient Manipulation. C, Slide (S) with Projecting Cover-glass (C), so arranged in order to prevent the folding of the fibrin when the cover-glass is raised. around the edge of the cover, which is then raised, the fibrin generally- adhering to it. The specimen is thor- oughly washed in normal salt solution or water, and stained for three or four minutes in an aqueous solution of hematoxylin, followed by eosin for one minute. Wash and set the preparation on edge to dry spontan- eously. When dry it is put over a shallow cell of some good cement. Thorough dryness is very necessary. The network is much coarser in mammalian blood or lymph than in that of a cold-blooded animal, e.g., frog or necturus. With the latter it is necessary to work with the greatest rapidity, as coagulation occurs much more quickly than in mammals. Watase's Method for Differentiating Sexual Cells.-The following modification is adopted by Watase from Auer- bach. The sexual cells, either in the testes, ovary, or in the hermaphroditic gland, where both male and female cells often exist side by side, are killed in Auerbach's fluid, or simply in a saturated aqueous solution of corrosive sublimate, and cut in paraffin in the ordinary way. Use Mayer's albumen, or better still, dilute alcohol or distilled water for fixing the sections to the slide, as the latter bias the tissue least for staining. Make a standard solution (A) of anilin water by dissolving anilin oil in water. Add enough alcohol to make a twenty per cent, solution. For a blue stain (B) take : Cyanin B. B 1 gm. Standard solution (A) 100 c.c. For a red stain (C): Chromotrop R. R 1 gm. Standard solution (A) 100 c.c. 435 Histological Formulae. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) A more powerful red stain (D) is as follows : Erythrosin 1 gm. Standard solution (A) ... 100 c.c. For contrast staining it is immaterial which solution, (B) or (C), is used first. If solution (D) is employed it should be used before the blue. The sections stain very quickly. Wash in fifty per cent, alcohol and proceed as usual. The anilin colors above mentioned may be used either in alcoholic or in aqueous solution without the anilin oil. The nucleus of the ovum takes on a red color, while that of the spermatozoon becomes blue, indicating that the nuclear substance of the female cell is erythrophilous (Auerbach) ; that of the male, cyanophilous (Auerbach). Different stages in the development of the spermato- zoon, as in mammals, are indicated by different tones of color. At the beginning (spermatogonium stage) the color is violet, probably due to a mixture of the blue and red ; at the next stage (spermatocyte) the color is decid- edly green, with one or two erythrophilous nucleoli ; another stage (spermatide) is greenish-blue, and the final (spermatozoon) is a deep blue. Sexual differentiation has been successfully demonstrated by Auerbach, Balbiani, and Ryder, but with different methods. Dr. Watase has succeeded in differentiating the sexual cells in the fol- lowing animals : asterias, unio, limax, loligo, necturus, diemyctylus, rana, bufo, tortoise, fowl, mouse, rabbit, cat, dog, and man. He lias also very recently obtained successful results in the sexual cells of Tunicates, by the use of the Biondi-Erlich triple mixture (aqueous solu- tion). The Permanent Preservation of Caustic Potash and Nitric Acid Preparations.-It was found that thirty per cent, to fifty per cent, aqueous solutions of caustic potash act with great rapidity upon intercellular sub- stance, but quite slowly on cellular elements. Weak solu- tions dissolve all the elements quite rapidly. The action of the strong solutions can be checked at any time by means of a sixty per cent, solution of potassium acetate, or by the addition of enough glacial acetic acid to neu- tralize the caustic potash and form acetate of potash. Perfectly fresh tissue should be used, but should not exceed half a cubic centimetre in size, and fifteen to twenty times as much potash should be taken. When the elements separate readily, the caustic potash is poured off and replaced by an abundant supply of a sixty per cent, solution of acetate of potash, to which one per cent, glacial acetic acid may be added. The isolated elements can be mounted in acetate of potash, glycerin, or glycer- in-jelly. If staining is desirable the tissue, after re- moval from the acetate of potash, is washed thoroughly in water. It can then be colored with hematoxylin or alum carmine. Nitric acid is used in a twenty per cent, aqueous solu- tion ; the length of treatment varies with the tempera- ture ; ordinarily one to three days are required. If heat be judiciously applied it may be completed in a few min- utes. The acid is thoroughly washed out with water. Put the tissue into the following solution : Saturated aqueous solution of alum ... 100 c.c. Chloral hydrate 2 gms. The nuclei are then stainable in aqueous hematoxylin. After the usual processes the preparations are mounted in glycerin jelly or balsam. Imbedding Methods.-The raison Fetre of imbedding is to fill up the interstices as well as the tissues them- selves, with a more or less firm material, in order that the specimen may be cut without being torn or distorted. This is the end aimed at by all infiltration methods. Practically, there are two methods now in vogue : pa- raffin and collodion (celloidin). Each has many ardent adherents, and each in some way possesses advantages over the other. Paraffin requires heat ; sections of very large objects are likely to split, and are necessarily rather thick. With small objects much thinner sections can be cut than with collodion ; the adhering of the sections to each other in the form of ribbons is very convenient for serial work. With collodion heat is unnecessary. It is a cleaner and perhaps shorter method than with paraffin, but except for large objects, the sections under the most favorable conditions are thicker than by the paraffin method. A safe rule to follow is to use paraffin for small ob- jects, collodion for large, or where very thin sections are not so essential. These methods are so extensively em- ployed that any detailed description is obviously out of place here, and what follows w ill be strictly limited to- some of the various modifications that have been sug- gested within the last few years. Lee withdraws his preference, except for small and easily penetrable objects, from chloroform as a clearing and infiltrating medium for specimens before going into paraffin. He finds it deficient in penetrating power for large objects, and somewhat tedious to remove before- putting the specimen into pure paraffin. Cedar-wood oil is found preferable, as it penetrates rapidly; preserves delicate structures ; mixes readily with paraffin, and does not make tissues brittle though they may be kept weeks or months in it. Przewoski's Method.™-As a safer, more economical, and more easily applied method than absolute alcohol, this writer recommends that the object be transferred from ordinary alcohol to anilin oil, and left there for at least twTenty-four hours. It is then wiped, and the anilin oil removed by soaking in chloroform for twenty- four hours. It is then immersed in chloroform paraffin (forty per cent.), and the next day in melted paraffin, which must be cooled down as soon as possible to pre- vent its becoming brittle. The anilin oil may be pre- viously dehydrated by distillation, or by dropping therein a piece of caustic potash. It is doubtful if this method possesses any real ad- vantage over that proposed by Lee. If the cedar-oil has the merit claimed for it, the above process might be abridged by transferring the object from the anilin-oil to- the cedar-oil. and then direct to paraffin. Paraffin Infiltration by Exhaustion.-Mr. A. Pringle states that this method is of great value in ordinary work. The preparation in melted paraffin is placed in an air- pump and the pumping continued as long as the air- bubbles arise. The paraffin is to be kept melted the whole time. The advantages claimed are : " great celer- ity, certain and complete infiltration, certain removal of the solvent, absence of distortion of the tissue-elements, obviation of necessity for prolonged heating of the ob- jects, possibility of using the same paraffin over again, pecuniary economy." Preference is given to chloroform infiltration. The rolling up of paraffin sections is often a source of great annoyance to the biologist. It is said that after the removal of the paraffin by turpentine or benzine, the sec- tions, if brought into concentrated carbolic acid, will un- roll themselves safely and float on the surface of the liquid. Fixation of Sections to the Slide. Method for Fixing and Flattening Paraffin Sections.™-The sections are placed on a dry slide or are moistened with seventy per cent, alcohol. The slide is placed on a horizontal metal plate kept sufficiently warm to soften paraffin. Enough alcohol is poured on to just float the sections. As the paraffin warms the wrinkles disappear. When all the alcohol has evaporated the paraffin may be just melted and then dissolved with benzol or xylol, and finally mounted in balsam. Care must be taken that the metal plate does not get too hot, for if the paraffin melts com- pletely the sections are unsupported. This is a modifica- tion of Canini's method, devised by Mr. H. E. Durham. Gulland's Method.60-For serial sectioning, care must be taken that the side of the paraffin block meeting the razor, as well as the opposite edge of the block, is coated with a layer of soft paraffin, and that these edges arc parallel with each other. The ribbons are cut to the proper lengths, floated on warm water (not warm enough to melt the soft paraffin). The ribbons in their proper position are floated upon the slide, which when full is set up on end until the water is thoroughly drained off. The slide is then exposed to a temperature a little below 50° C., where the paraffin of 436 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Histological Form ii lie. the sections is not melted, but the water rapidly evapo- rates. When the evaporation is complete the sections adhere to the slide. The time varies according to the thickness of the section. One hour usually suffices for thin sections. The important point is that the paraffin must never be melted until the last trace of water has dis- appeared from the slide. After complete fixation the paraffin is melted and then washed off with turpentine or xylol. Gaule's Fixative.6'-The slide is brushed over with weak alcohol (forty to seventy per cent.); stronger alco- hols evaporate too quickly. The sections flatten out on this film, and, if thin, adhere with great pertinacity when the alcohol has evaporated and the slide is perfectly dry. " This is no fixative in itself, but simply a means by which the albumin molecules of the section are brought into the same adhesive contact with the glass as those of ordinary fixatives." Born and Wieger's Fixative.62-It is claimed to surpass Giesbrecht's shellac, Mayer's albumin, and Schalli- baum's clove-oil and collodion fixatives. It is prepared by adding to every two volumes of quince mucilage (mucilago cydonii) one volume of pure glycerin and a little carbolic acid to prevent fungi. A thin layer of the fixative is spread upon the slide and the paraffin sections placed thereon. No heat is employed ; the glycerin pre- vents the adhesive layer from drying too quickly. Put in a warm place (30° to 40° C.) for twenty minutes or longer. When the water has all evaporated the paraffin is washed out with turpentine, and the slide transferred to absolute alcohol for half an hour at least. Stain with any kind of dye, wash, and proceed as usual. Adhesion remains perfect throughout, and the fixative takes no trace of color ; even under the microscope can it scarcely ever be perceived. Two important points in this process are to be remembered : The first is that the slide must be perfectly clean, otherwise the fixative may fail to adhere properly. It is recommended to lay the slides for half an hour in cold soap and water, and dry them carefully with a clean cloth. The second point is, don't transfer the slide from the alcoholic bath directly to water ; it should pass at least through one intermediate grade (fifty per cent.), otherwise the diffusion currents are quite likely to separate the section from the slide. Collodion Imbedding.-Various opinions exist as to the relative merits of collodion and celloidin. The latter is said to be " merely a patent collodion." Lee inclines toward Duval's view, that celloidin has no real advan- tage over collodion, while the former has the advantage of being more transparent. Apathy's recommendation, that the celloidin be allowed to dry until it becomes yellow, transparent, and of a horny consistency before, dissolving in ether and alcohol, is a great advantage. After the imbedding of the object in collodion, the col- lodion may be further hardened, after a short exposure to the air, by immersion in chloroform or alcohol. For gen- eral use, except for large objects, chloroform is to be preferred, because it is more certain, rapid, and gives a better consistency to the mass. Alcohols from thirty to ninety per cent, have been recommended for this pur- pose. The stronger the alcohol, the more likely it is to soften the mass and prevent good results in cutting. From seventy to eighty per cent, alcohols are commonly used, and are to be recommended. Bumpus's New Method, of Using Celloidin for Serial Sec- tion Cutting.66-" It allows a perfect orientation ; the entire object is visible during the process of cutting. Yolk-bearing eggs offer no serious difficulty ; sections of large area and of unusual thinness are easily secured ; crimping and curling during the process of clearing are avoided, and the sections may be readily arranged in series. After imbedding in a paper tray and hardening in chloroform, and after the paper is removed, the hardened block of collodion containing the object is put into a vial of white oil of thyme, or some other similar oil. The block will become as clear as glass. The spec- imen is then oriented, and the side of the block to be fixed to the object-holder is wiped dry of the oil and im- mersed for a moment in ether, and then smeared with (SUPPLEMENT.) thick collodion. The object-holder, a block of wood rather than cork, is smeared in the same way, and the two collodionized surfaces are brought together. The holder and collodion block are now immersed for a few minutes in chloroform, or long enough for them to be- come firmly united. The preparation is now screwed between the jaws of the object-carrier of the microtome, and covered by means of a camel's-hair brush with oil of thyme. The microtome knife is flooded with the same oil. The oil which thus takes the place of the alcohol commonly used has the advantage, because of its lubricat- ing property, of not only permitting thin sections to be cut, but its slow evaporation allows one to leave his work at any time for minutes, or even hours, without injury to the object. The object satisfactorily oriented, is now cut, and the sections at once transferred to the slides, covered with balsam, and mounted, or, if they are not immediately needed, they may be kept indefinitely in a vial of the oil. " If the sections are to be arranged ' in series ' they are simply placed upon the slide one after the other, care being taken not to flood the slide with oil but to keep it quite dry. After the sections are arranged the slide is tilted up to allow the excess of oil to drain away, fifteen minutes generally being sufficient. Balsam is now placed on the sections, and a warm cover is allowed to fall gently over the series, no section of which ought to leave its place. The above method is especially useful in the prep- aration of larger yolk-bearing eggs. . . . " The following method of Eycleshymer's64 is of great practical utility and abridges considerably the ordinary manipulation of collodion technique. The knife is kept wet with seventy per cent, alcohol. "As fast as cut the sections are drawn back upon the blade of the knife by means of a needle, and arranged in a single row until the blade is filled. To remove them a heavy paper spatula is placed directly upon the section to which it adheres, and may be drawn off the edge of the knife and trans- ferred to the slide. By slight pressure, together with a rolling movement, the section is left in the desired posi- tion, sufficient alcohol is kept upon the slide to prevent drying, but not enough to allow the sections to float. When the requisite number have been arranged they are covered with a strip of toilet-paper, which is held on the slide by winding it with a fine thread. [The thread should pass between the sections ; if across, the stain is not likely to act there, and a clear disfiguring line will be the result.] The sections being thus firmly held in position may be stained, etc. They should not be placed in ab- solute alcohol but cleared from ninety-five per cent, in a mixture of equal parts of bergamot-oil, cedar-oil, and carbolic acid. When cleared the excess of fluid is re- moved by a piece of blotting-paper ; with gentle pressure sections which are by chance loose are firmly fixed in position, the thread is now cut, the strip of paper rolled back, balsam and cover applied. " If the object can be stained in toto, which is often the case, much time may be saved by the following method : The stained object is imbedded in the usual manner, but after hardening in chloroform and removing the paper, the celloidin block is transferred to ninety-five per cent, alcohol for twenty-four hours, then to carbolic acid (Bumpus advises white oil of thyme) or glycerine, in which it becomes as transparent as glass (Eycleshymer has since found that the clearing mixture given above answers the same purpose as the carbolic acid but re- quires a little longer time). The block is fixed in the usual manner. " Orientation is now accomplished with the greatest ease. In cutting, the knife is wet with the clearing medi- um given above. The sections may be arranged in serial order on the knife-blade until a slideful is obtained, when they are transferred and balsam and cover applied. By this method long series may be readily handled. Glycerin is used only yrhen the mounting medium is glycerin ; in this case the knife is wet with glycerin." Kultschizky's Celloidin-paraffin Method.'-The purpose is to combine the advantages common to each method. After the object is removed from the ether and alcohol 437 Histological Formulae. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. bath it is put into a solution of celloidin of any strength, ■where it remains for twenty-four hours ; it is then trans- ferred to origanum-oil, and then to a mixture of paraffin and origanum-oil, which has been heated to 40° C., and finally to melted paraffin. Its stay in these various solu- tions varies according to the characteristics of the speci- men to be imbedded. The advantages claimed are that very fragile objects can be imbedded ; that very thin sections, owing to the celloidin, do not break up, even though the paraffin has given way ; that it is not neces- sary to use an alcoholic drip while cutting; that sections of the same tenuity as those from paraffin imbedding can be obtained. Ryder63 modifies the above method by substituting chloroform for the oil of origanum. The sections may be mounted direct from the chloroform (clearing-bath), but the chloroform must not be allowed to evaporate be- fore the section is covered with balsam. Soap Masses.-These possess many good qualities, they are transparent and very penetrating, and a good mass is said to cut much better than even paraffin. Cut- ting may be done dry or with alcohol. The mass is alka- line, which is against it for the preservation of tissues, but, according to some, an advantage in clearing up the speci- mens. It has also been claimed that less shrinkage is produced than with paraffin. Poli's Glycerin Soap.'6-A mixture of equal volumes of glycerin and ninety per cent, alcohol are heated in a water-bath to 60° or 70° C. Into this are dropped as many small pieces of glycerin soap as will dissolve. A flask with its neck plugged with cotton, to prevent evap- oration, is best adapted to this process. The liquid thus obtained is yellow and transparent, but with a slight opalescence. It is then poured into a capsule or paper box. While it is still warm the object to be cut, and which has been removed from strong alcohol, is fixed in the desired position by means of needles until the soap has solidified. Large pieces must be soaked for some time in a cold saturated solution of soap before they are re- moved to the warm fluid. The imbedding mixture, which should be kept in a stoppered bottle, melts easily at about 40° C. Very small objects may be imbedded by placing them in a drop of the warm solution on an object-holder and covering them with another drop ; with such small quantities the soap gets quite hard in about a quarter of an hour. The sections are freed from the soap by washing in lukewarm water, while the alkalinity of the soap aids in clearing up the object. In practice it is found advisable to use two solutions, one for firm and the other for delicate objects. The strong solution is : Ninety per cent, alcohol 32 c.c. Pure glycerine 32 c.c. Soap 64 gms. The weak solution contains only one-half (32 grammes) as much soap, and is consequently much softer. The mass is said to work very well indeed with delicate botanical objects, and is also recommended for its great transpar- ency and easy solubility in water. Clearing Agents.-The functions of a " clearer " are to displace alcohol, to render dehydrated preparations transparent and to facilitate the penetration of balsam or any other resinous material in which the specimen is to be mounted. For rendering thick sections transparent a mixture of cedar and clove oil has been recommended.41 The proportion varies with the quality of the oils. A convenient rule is to begin with two-thirds oil of cedar and one-third oil of cloves, stirring with a flint glass rod. When the rod is no longer visible in the mixture, the correct index of refraction is obtained. A small propor- tion of Venice turpentine is sometimes added. Mounting Media.-Under this head will be con- sidered a few forms, chiefly resinous, intended for the permanent preservation of microscopic objects. Canada balsam and damar are in such common use that a mere mention of them is sufficient. Kleinenberg has recom- mended a solution of Cotophonium in turpentine. The medium sets slowly but gives good definition. (SUPPLEMENT.) Lavdowsky's Medium.66-Two formuhe are given, the first for a thick, and the second for a thin, solution. Gum sandarac 30 gms. Absolute alcohol 50 c.c. For the thin solution dilute this with an equal volume of absolute alcohol. This medium also clears the sec- tions. Venice Turpentine.99-All the advantages and some su- periority over the ordinary resinous media are claimed for this preparation. Commercial Venice turpentine is mixed in a tall cylinder glass with ninety-five per cent, alcohol and allowed to stand for three to four weeks and then decanted. A clear yellowish, or sometimes greenish mixture is obtained. And this is at once ready for use. The ordinary solution of Canada balsam is the most suit- able consistence for the Venice turpentine. It is stated that most objects can be mounted in this without previ- ous clearing. It sets as closely as damar. Its index of refraction is lower than the above-named balsams, and delicate details are well brought out. Stains are well preserved. * Cassia-Oil 6"'-This has been recommended as being Figs. 274 and 275.-Dehydrating Apparatus. very successful in showing the markings of diatoms. Its refractive index is 1.640. Levulose {Fruit-sugar).66-This substance is found ac- companying grape-sugar in fruits and honey. It is un- crystallizable and preserves carmine and aniline stains well (hematoxylin fades somewhat). Objects may be brought into it from glycerin. Its refractive index is somewhat higher than that of glycerin. Miscellaneous.-Thomas's Modification of Schulze's Dehydrating Apparatus.69-A disk of plaster of Paris (Fig. 275, A) is supported at a suitable level by glass legs (C) in a museum jar. In the disk are perforations through which the dehydrating tubes are passed (Fig. 275, B). The disk is easily made by pouring a mixture of plaster of Paris and water in a mould of convenient size and depth. The holes for the tubes and the inser- tion of the legs are attended to while the mass is yet soft. A dehydrating tube (Fig. 274) may be prepared by cut- * See also a paper by Dr. H. Suchanneck, Zeit. f. Wiss. Mik., vii., 463, 1891. 438 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Histological Formulae. (SUPPLEMENT.) ting off the bottom of the test-tube, and placing a dia- phragm of chamois skin (D) near the bottom. The diaphragm is fastened in its place by means of a spring made of steel wire (E), and forced inside of the chamois skin in the tube, thus pressing the former firmly against the latter. A rubber band around the tubes pre- vents their falling through the holes, and can be made to regulate the depth to which they shall be lowered into the alcohol. The tissue is placed in the tube containing some weak alcohol, the tube is then lowered until the two liquids are at a level. After twelve or forty-eight hours the two liquids will be of the same strength. The tissue is then taken out and put at once into the infiltrat- ing tube. With very delicate plant tissue it is well to immerse in as low as five per cent, alcohol in the tube (fifty per cent, suffices for ordinary tissue), or in the case of some algae even as low as one per cent. The strength of the alcohol in the jar is kept up by adding calcium chloride from time to time. This is said not to injure the alcohol in the least. It is stated that picric, chromic, acetic, or osmic acid can be used with equal success. [It is a question if the presence of the wire supporting the dia- phragm of the tube is of any advantage, especially when " acids" are used, and if the same purpose may not be subserved by simply fastening the diaphragm around the end of the tube with a thread.] The advantages claimed are : That not more than twenty-four hours is necessary for dehydrating and hardening nearly all kinds of plant tissue, as no sudden transition from solutions of different strengths occurs the tissue is less liable to shrink. The simplicity of the apparatus places it within the reach of all. Various materials can be used for a diaphragm, and almost any desired speed of dehydrating obtained. Ac- cording to its size the apparatus may be either for private or general laboratory work. Experiments were not tried with animal tissues, but there is no apparent reason why they should not be successfully dehydrated bv this method. Gage's Drawing-board for the Abbe Camera Lucida.™- In order to obtain accurate and undistorted drawings the axial ray from the camera must be at right angles to the drawing surface. To accomplish this the mirror should be tilted to an angle of forty-five degrees. With most microscopes, however, the lateral extension of the stage is so great that a portion of the image falls upon it and renders drawing impossible at this angle. If a lesser angle than forty-five degrees be employed, the axial ray will no longer be at right angles to the drawing surface, although the image may appear clear of the microscope, and an obviously distorted picture will be the result. The board was designed to prevent this difficulty. Upon a board of convenient dimensions is hinged a shorter board (A B), near the attached end of which the micro- scope is placed (Fig. 276). The drawing surface (A B) may be raised or lowered to any desired angle by simply shifting the wedge (W). The figure with the mirror at thirty-five degrees illustrates clearly the direction of the rays of light, and shows obviously enough the distortion that would result if the board were not used. " The general rule is to raise the drawing sur- face twice as many degrees toward the micro- scope as the mirror is depressed below forty-five degrees." A camera with a longer arm attach- ment would enable the image to fall clear of the stage or base of the microscope with the mirror at forty-five degrees, and a drawing, without distortion, could be made upon the ordinary surface of the table. A quadrant may be easily made and attached by any skilled mechanic. To Rectify Turpentine for Microscopical Use.11-Mr. Charles C. Faris suggests the following method : " Take one-half liter of the common turpentine and mix in a liter bottle with one hundred and twenty cubic centimetres of ninety-eight per cent, alcohol. Agitate well, and let stand until the twro fluids separate. Decant the turpentine (which will form the lower layer) from the alcohol and mix it with one-half liter of clear water. Agitate thoroughly, and let stand until these two fluids separate ; then from the water decant the turpentine (which this time will form the up- Fig. 276.-Drawing-board for Microscope. per layer), and finally mix with the turpentine about thirty grams of powdered starch and filter through paper. " By pursuing the foregoing plan any one may securea pure, limpid, and brilliant turpentine. The alcohol used in rectifying it need not be wasted, as it will do to burn, to clean slides, or for other purposes. I usually make a large quantity and recover the alcohol by distillation." Fig. 277.-Minot's Improved Microtome. Front view. Microtomes.-The following brief description is con- fined entirely to instruments of American design, al- though Figs. 277 and 278-the front and rear views of Minot's microtome12-show some modifications very re- cently introduced by a foreigner (Zimmerman). The principle of the microtome is to secure sections by 439 Histological Formulae. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) moving the object to be cut in a vertical plane past the knife, which is held in a fixed position. The slide A (Fig. 277) moves up and down. In this figure it is rep- resented at its highest level above the knife. To this (the vertical) slide is attached another, the horizontal slide, which is moved by a micrometer screw, the head of which is a cogged wheel, B. In the knife end of this slide is clamped the object-holder. This may be turned until the object is in the desired position and then fastened by screws. From a movable bar attached to the vertical slide is a hooked lever, which catches in the teeth of the large wheel B. The free end of the bar projects far enough beyond the hooked lever to strike against one of the six arms of a windlass arrangement at the side ; this causes the lever hooked in the wheel to be pulled down, thereby turning the wheel and moving the horizontal slide with its object-carrier toward the knife. The arms of the wind- lass are of different lengths, and the distance through which the horizontal slide moves is proportionately greater or less, thus regulating the thickness of the sec- tions. These can be made to vary from three to twenty microns. For thinner sections the small wheel C (Fig. 278) is adjusted so that its cogs will fit into those of the large wheel B, the windlass of which is not now used, but in place of it one regulating the turning of the small wdieel C. With this arrangement sections can be made from one to six microns in thickness. Fig. 277 shows a belt attachment fastened to the knife supports, for the purpose of enabling the worker to more easily manipulate his " ribbons " of sections. By simply turning the wheel, section after section can be cut with the greatest rapidity. Compressed Carbonic Acid Gas for the Freezing Micro- tome.™-The gas, or liquid carbonate, as commonly known, is obtainable in ten- or twenty-pound cylinders. For laboratory use certain changes must be made in the cylinder. " A. circular block of iron, an inch in thick- ness and of the diameter of the handle of the valve, was fastened to the latter by two screws w'ith nuts. Into this block were bored four holes ninety degrees apart, and of a size sufficient to admit the end of an eight-inch handle, B (Fig. 279). This greater leverage affords much better and more even control over the escape of the gas. " The cap covering the escape-pipe was unscrewed, and a hole bored through it large enough to admit of a small brass tube with a fine bore being driven tightly into it. The cap thus prepared can be kept and used on any other cylinder received. One end of a small but thick rubber tube, C, was then slipped over the brass tube and tied firmly on ; the other end was fitted over the tube leading into the freezing-chamber of the microtome, but was not tied on, so that it might act as a safety-valve and slip off if the pressure became too great ; otherwise the tube is likely to inflate and explode. In connecting the cylinder with the freezing microtome it must be inverted, so that the valve handle is below, and raised enough above table to bring the escape-pipe on a level with the freez- ing-chamber. A projecting support at A and two bands FiG. 279.-Carbonic Acid Gas Cylinder, for Freezing Microtome. at D, sufficiently snug to keep the cylinder from turn- ing, were found necessary. The freezing chamber of the microtome should be shallow (about five milli- metres) so that the gas, which by its own evapora- tion becomes frozen solid in it, may continue to free the specimen above it. The brass plate above the chamber should be thin, but still strong enough to stand considerable pressure, and the fioor of the chamber ought to be made of a block of solid hard rubber, in order to render the loss of cold as small as possi- ble." (F. B. Mallory.) This method is much cheaper than that by ether or rhigolene. If a specimen is frozen too hard, so that it chips, simply passing the finger wet with water or salt solution over its surface, will soften it. A carpenter's plane properly mounted makes the best knife for cutting. Ryder's Automatic Microtome.^ - "The working parts are an oscillating lever, which is provided with a clamp at one end into which the paraffin-holders are adjusted, and at the other with a simple handle. This lever rests upon trunnions on either side, and these in turn rest in triangular notches at the top of the two pillars between which the lever oscillates. At the cutting end of fhe Fig. 278.-Minot's Improved Microtome. Rear view. 440 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Histological Formulae. lever a spring pulls the lever down and effects the section- ing and also the adjustment for the next section. The lever is pushed over and adjusted for the successive sec- tions by a hollow screw, through which passes the trun- nion on the side away from the knife. This screw is fixed to a toothed wheel, three inches in diameter, which revolves close by the side of the oscillating lever. The toothed wheel and screw are actuated by a pawl fixed to the side of the lever near the handle. The number of teeth which this pawl can pass in a single vibration down- ward is controlled by a fixed stop screwed into the under side of the oscillating lever near the handle ; the end of this stop striking on the top of the bed-plate thus brings the lever to rest at a constant point in its downward ex- cursion. An adjustable sector by the side of the toothed wdieel throws the pawl out of gear after a given radius of the wheel has been turned through an arc embracing the desired number of teeth. This adjustment is also effected before the block containing the object to be cut reaches the knife. The adjustment for the next section is there- fore effected while the surface of the block is not in con- tact with the under side of the knife, so that no flatten- ing or scraping effect is produced on the surface of the block in its upward passage past the knife. "The movement of the vibrating lever being ar- rested at each down-stroke at one point, and the pawl (SUPPLEMENT.) strument. The knife is attached to a heavy nickel-plated iron carriage A (Fig. 281) by a steel clamp and shoe, b and c, with milled-head screws, a. The carriage runs on a solid iron track, h and B, which is held to a table by clamp screw, k. For cutting very hard objects, like the wiry stems of plants, or the chitinous skeletons of insects, there is an attachment with a very stout blade, on the principle of a carpenter's plane, d, which screws on to the carriage in place of the knife, and like it can be used for transverse or oblique cutting. Two forms are made ; No. 1 will cut paraffin objects to two and a half microns in thickness ; No. 2, only to twelve and a half microns. An Inexpensive Section-smoother,61-A very simple de- vice. It is prepared by cutting off the head and point of an ordinary pin and fixing it parallel to the edge of the knife by pressing its ends into two small pellets of bees- wax. (Fig. 282.) The proper elevation can be determined by experimenting on waste paraffin before the object is reached. The pin is used only for transverse cutting. Fig. 280.-Ryder's Microtome. Fig. 281. which catches into the notches in the toothed wheel being released at any desired point by the action of the adjust- able sector, it is possible to adjust the apparatus with great accuracy for cutting sections of any desired thick- ness. If a given radius of the wheel is moved through the arc embraced by a single tooth, sections are cut hav- ing a thickness of only two and a half microns, a thick- ness which is only practically possible with paraffin im- bedding and a very keen razor. If more teeth are taken by the pawl, any thickness of section is possible up to about sixty-two and a half microns. " A freezing attachment which has lately been appended to the apparatus shows that frozen sections can be made with as great rapidity and success as those cut from ob- jects imbedded in the paraffin block, and very nearly, if not quite, as thin. The freezing attachment is as simple and efficient as the self-adjusting and cutting devices of the instrument. Other auxiliary apparatus makes it pos- sible to cut celloidin sections. This is effected by means of alcohol, conducted by a tube from a reservoir to the knife, over which the fluid will run and drain into a tray below in such a way as not to come in contact with any other part of the machine. This tray fits into a recess in the side of the bed-plate of the instrument, just below the knife, and into this tray the celloidin sections may be allowed to drop as fast as cut. The knife can be placed at any desired angle, which, for some kinds of work, is quite a desideratum." King's Microtome.-A microtome designed especially for hard service in botanical work or for cutting any hard material which requires absolute rigidity in the in- Decolorizing Preparations Over-blackened by Osmic Acid}*-Dr. E. Overton reminds histologists of a method introduced by Fol. The solution is not permanent and should be prepared afresh whenever needed. Commercial peroxide of hydrogen. .. 1 part. Alcohol (seventy to eighty per cent.). 10-25 parts. The treatment lasts but a few minutes, after which the preparations stain excellently. Fig. 282. - Section smoother. Schiefferdecker's Microscope Screen}'1-The general form and relative size are well shown in the figure (Fig. 283). The framework is made of light wire, around which is sewed some dark cloth. At the lower part, and forming a support to the screen, is a metal rectangle; from this there extends upward a vertical strip which a little above the level of the coarse adjustment is bent at right angles to join two pairs of arms embracing the tube of the micro- scope. The base of the rectangle rests upon the front of the stage. By moving the tube of the microscope the whole screen is moved up or down. From the lower edge of the rectangle there hangs down a small piece of cloth to screen the condenser, while the main portion 441 Histological Form ulte. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. amply protects the eyes and the object under examina- tion. With a little ingenuity less elaborate but equally efficient screens may be made ; their usefulness is well worth the time expended. (SUPPLEMENT.) formly good results, it was found that the restored solu- tions, with the exception of a gradual weakening, acted in the same manner as the fresh solutions and produced the same results. The chemistry of the restoration and the bleaching further demonstrate that no injurious factor enters into the result, as is shown by the following equations : OsO4 + organic substance = OsO2 + oxidized organic substances. OsO2 + 2H.O2 = OsO4 + 2H2O. That is, in bleaching a tissue its OsO2 is converted into OsO4 and water is formed. To restore 100 c.c. of a one per cent, solution of osmium tetroxide requires from ten to twenty drops of fresh peroxide of hydrogen, and clearing goes on better in full sunlight. To bleach tissue with peroxide requires about the same amount in 100 c.c. of water, and the bleach- ing takes place in the sunlight also. The amount needed cannot be stated with any more precision, because the peroxide loses its strength somewhat with age. Reconstruction Points.™-An ordinary metallic imbed- ding box, Fig. 285, made of two L-shaped pieces, a and Fig. 285.-Imbedding Box. a , held m place by the overlapping strips b, is perforated at the ends and sides, in as many places as are desired, by a very small drill. These should be so arranged that the silk threads when drawn through are parallel. The threads are cemented to the sides of the box with five or six centimetres left hanging. A heavy piece of blot- ting-paper is fitted in for a bottom. The object is placed upon the threads in the desired position and the imbedding mass poured in. When hardened the cel- loidin holding the thread is dissolved with ether. The loose ends are soaked in a weak solution of celloidin to which has been added some lamp-black. The threads are then drawn through, leaving the lampblack adhering to the celloidin, thereby forming excellent reconstruction points. For small objects, where reconstruction points are not needed, Mr. Eycleshymer recommends the following method : The heads are clipped from tine insect pins, which are then placed in handles in such a way that they may be easily removed. On these pins the objects are oriented in the desired position; the pins are then re- moved from the handles and fixed in a cork, a (Fig. 286), previously perforated by a somewhat larger pin. As fast as the pins carrying the objects are inserted, the cork is replaced in the tube, which is tilled with alcohol. A half-dozen fish or am- phibian ova may be oriented on the same cork. If desirable to draw the objects in situ a piece of lead may be pinned to the cork and the whole immersed in a small beaker of alcohol. The corks carrying the oriented objects are transferred successive- ly to tubes containing the different solu- tions. When ready for final imbedding, a piece of porous paper is wrapped about the tubes and cork, and pinned. The cork is now removed, allowing the imbedding solution to fill the paper tube thus formed. A lead is fastened to the cork and the whole placed in chloroform until hardened, after which the paper is cut from the mass and the pins drawn through the cork, when it is ready for sectioning. Several objects may be cut at the same time, drawings may be made after Fig. 283.-Screen for Microscope. (Schiefferdecker.) The Removal of Aniline Dyes from the Hands16 - Some dyes resist very stubbornly the action of alcohol or hy- drochloric acid, and require some bleaching agent. Unna recommends 'washing first in a solution containing a little common salt (about five per cent.), and then in a solution of hydrogen peroxide of about the same strength, and finally wiping with a cloth moistened with alcohol. Ward's Eye Shade16 - This device consists of a black disk, from which extends an arm curved at its end and somewhat elastic, in order to clasp the ocular. By its use both eyes may be kept open, thus avoiding fatigue. Fig. 284.-Eye Shade. (Ward.) Blau's Regeneration of Hematoxylin.2'2-As hematoxy- lin is rather expensive, a method for restoring it may be worth knowing. To about 200 c.c. of the used hematox- ylin, add from five to ten c.c. of baryta water (an aqueous solution of barium hydrate). A stream of carbon diox- ide, made from marble and hydrochloric acid, is then passed through it, and after twenty-four hours it is fil- tered. The filtered solution is said to be as good as the original. The Restoration of Osmic Acid Solutions.'11-Osmium tetroxide, OsO4, is readily reduced in the presence of or- ganic matter, giving up two atoms of oxygen and form- ing the deutoxide, OsO2. The tetroxide affects fatty substances first, and these are the substances that most readily undergo oxidation. After some preliminary ex- periments with peroxide of hydrogen, (H2O2), with uni- Fig. 286. -Vial for Orienting Small Objects. 442 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Histological Formulae. orientation, and the objects may be transferred more rapidly from one solution to another. A Breath Screen.™-In order to avoid the accumulation of moisture along the tube of the microscope, especially in winter. Dr. P. Schiemenz has devised the screen shown in Fig. 287. It is made of a piece of stiff paper, the principal part of which is nearly circular (diameter, about 8 ctm.). The ctm. wide. Into one end there is glued a'closely-fitting block, 1 ctm. long, and in the other end one 5 ctm. long, leaving a trough for slides about 9 ctm. long. In the place where this last block is glued, is bored a hole 1.5 ctm. in diameter, and 1 ctm. deep, into which tightly fits a paper pill-box for covers. The remainder of the block is provided with twro rows of five holes, each 2 ctm. in diameter, and 3.5 ctm. deep, for reagent vials. Fig. 288.-Reagent Block. The first groove is used for razor and the second for pencils, pipette, forceps, etc. The block is easily made, costs very little, is very neat in appearance and con- venient in work." Bausch and LomUs Cover-glass Gauge.-The stand is made of japanned iron ; at the top, cut horizontally, is a thread inch pitch and inch outside diameter. A recess is cut below the line of the screw and at a right angle to it, for placing the covers. The portion of the stand :tt the side of the recess which receives the micro- meter screw, is slotted longitudinally to the depth of the screw, and is provided with a set screw to take up wear; the other side has the " fixed " screw, which is, however, adjustable. The end of the micrometer screw is milled so that no force can be exerted sufficient to en- danger the cover-glass. Fixed to the screw is a wheel, the surface of which is one-half inch wide. A knife- edge index-finger attached to the top of the stand pro- Fig. 287.-A Breath Screen. (Schiemenz.) smaller portion is pierced by two holes, through which passes a string by which the apparatus is attached to the microscope tube. The screen is easily fixed and moved to any desired position. Accurate Drawings by Amateurs.60-A blue print, not too dark, is traced over free-hand, with China ink. When dry the picture is passed through an aqueous solu- tion of caustic potash, 1 in 500 or 1,000, and washed after- ward with water and dried. The potash removes the blue printing, leaving the ink lines distinct. If the print is too dark, delicate outlines are not easily seen and the bleaching process is not so thorough, a brownish tint re- maining. The drying is an important part of the process. As soon as washed the picture should be placed between some sheets of blotting-paper, and dried quickly by rubbing the hands over it a few times. If this precau- tion is not taken, the ink particles are likely to run, giv- ing blurred and indistinct lines. "In this way draw- ings, with all the accuracy of photographs, and all the clearness of woodcuts or etchings, may be produced by persons who cannot make anything like an accurate draw- ing or a good picture of any natural object. There is a minimum of trouble and expense." A Waterproof Drawing Ink :16 Powdered bleached shellac. 4 parts. Borax 1 part. Water 24 parts. Dissolve by the aid of heat. To this solution the color- ing principle, as India ink, lampblack, the different tints and shades of anilin colors, etc., is added after being dissolved in, or triturated with, a small quantity of water. An Inexpensive Reagent Block.69-" It is a plain white-wood block, 15 ctm. square and 4 ctm. thick. On the upper side of this three grooves are cut, each 1.5 ctm. deep. The first is 1 ctm. from the edge, and 1 ctm. wide ; the second is 1 ctm. from it and 3.5 ctm. wide. The third is 1 ctm. from this and 2 Fig. 289.-Gauge for Cover-glasses. 443 Histological. Hospitals. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) jects over it. Along the circumference of the wheel is fixed a strip of glazed paper provided with a series of divisions. The first series gives the thickness of cover- glasses to one-thousandth inch, the second to one-hun- dredth millimetre, and the third indicates the proper tube-length with various thickness of cover-glass, with a non-adjustable i-inch objective corrected under a tube- length of inches and cover thickness of 0.16 mm. ; proper length are fastened into two strips of lead, slightly curved to fit around the margin of an ordinary bowl. Between the glass rods is a tin funnel, held in position by flanges of tin which may be bent around the rods and permit the funnel to slide back and forth. The rods are a convenient resting-place for the slide, while in Fig. 290.-Zeiss's apparatus for Measuring the Thickness of Cover- glasses. the fourth gives the tube length of a i-inch objective under the same conditions ; Hie fifth for a |, and the sixth for a -jV ; the seventh is for a £-inch objective with the same cover and tube-length of 160.0 mm. Zeiss's Cover-glass Tester.-For determining the thick- ness of cover-glasses, etc. A small lever projecting from the side of the apparatus regulates the opening and shut- ting of the jaws for holding the cover-glass. An indica- tor moving around a circular scale on the face of the box, registers the thickness of the object. The divisions of the scale show hundredths of a millimetre and thou- sandths of an inch. Micrometer Caliper.-Used chiefly in the "mechanic arts." It is, however, perfectly well adapted for testing the thickness of cover-glass. It can be obtained with either the English or metric scale, and is of convenient size so that it may be carried in the vest-pocket. Fig. 292.-Waste Bowl. process of preparation. The various solutions used in treating the sections may be readily drained from the slide by placing it for a few moments jn the funnel. 4 Pierre A. Fish. Bibliography. In compiling these formulae it has been the aim of the writer to con- sult the original papers. It has been impossible in some cases, with the limited time at his disposal, to do more than to secure abstracts of them in other periodicals ; but it was deemed better, on the whole, to give the reference directly to the complete article. 1 Zeit. f. wiss. Mikr., iv., 1887. 3 Lee, A. B.: Microtomist's Vade Mecum. 1890. 3 Morphologisches Jahrbuch, x.. 215, 1884. 4 La Cellule, iii., 6, 1886 ; also 1887. 5 Mitth. Zool. Sta. Neapel., ix., 118, 1889. 6 Broca : Memolres sur le Cerveau de 1'Homme. 1888. 7 Anat. Anzeiger. iv., 52, 1889. 8 Comptes Rendus Soc. Biol., iv., 622, 1887. * Zeit. f. wiss. Mikr., viii.. 1891. 10 M. T. Naturforsch. Gesell. Bern.,pp. xiv.-xv., 1887. 11 Whitman, C. O.: Methods in Microscopical Anatomy and Embry- ology. 1885. 42 Mitth. Zool. Sta. Neapel., x.. 170, 1891. 13 Kahlden, C.: Technik der Histologischen Untersuchung. 1890. 14 Zeit. f. wiss. Mikr., v., 1888. 15 Carpenter, W. B.: The Microscope and Its Revelations. 1891. 16 Jour, de Micrographic, xiii. 17 Arch. f. Mikr. Anat., xiv., 180, 1877. 18 Mitth. Zool. Sta. Neapel., x., 480, 1892. 19 Arch, de Zool. Exp. et Gdn., iv., 1886, »20 Hamilton, D. J.: Text-Book of Pathology. 1889. 21 Lustgarten : Med, Jahrb. k. Ges. d. Aerzte zu Wien. 1886. 22 Zeit. f. wiss. Mikr., iii., 1886. 23 Deutsche Zeit. f. Thiermed. u. Vergleich. Pathol., xiv., 1889. 24 Zool. Anzeiger, p. 254, 1880. 28 Wethered, F. J.: Medical Microscopy. 1892. 26 Arch. f. Mikr. Anat., xxiv., 1885. 27 Arch. Sci. Phys, et Nat., xxvi., 1891. 28 La Riforma Medica, 1890. 23 Zeit. f. wiss. Mikr., vi.. 1889. 30 Revista trimestrial. 1888, 1889. 31 La Cellule, vii., 1891. 32 Arch. f. Anat. u. Phys., supplement, 1889. 33 Anat. Anzeiger.. vii., 1892. 34 Arch. ital. de Biologie, ix., 1888. 35 Berkley, H. J.: Johns Hopkins University Bulletin, 1891 or 1892. 36 Archivio per le Scienze Mediche, 1878. 37 Gazz. degli Ospitali, 1886. 38 Boll. Accad. Med. di Roma. 1886. 39 Arch. f. Mikr. Anat., xxxvii., 1891. 40 Verh. d. X. Internationalen Med. Cong., ii., 1891. 41 Arch. ital. de Biologic., xvii. 42 Ibid., xv., 1891. 43 Neurologisches Centralblatt, No. 9. 1892. 44 Ibid., No. 3, 1891. 46 Zeit. f. wiss. Mikr., vii., 1890. Fig. 291.-Micrometer Caliper. Cleaning Mixture for Glass.10-Various formulae have been given for cleaning new and used slides and cover- glasses. The following have been well-tested and de- serve high recommendation : Bichromate of potash 200 gms. Water 1,000 c.c. Sulphuric acid 1,000 c.c. Dissolve the bichromate in the water by the aid of heat, pour into a bottle wrapped with a wet cloth, and add the sulphuric acid slowly and at intervals. The mixture may be used more than once, but when markedly of a greenish tinge it should be discarded. Another good mixture is : Nitric acid 200 c.c. Sulphuric acid 300 c.c. The two acids should be mixed slowly and, like the preceding, kept in a glass-stoppered bottle. It is a more rapidly acting mixture, but the fumes render it less desirable. Waste Boicl.-The apparatus is easily constructed and exceedingly useful. The ends of two glass rods of the 444 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Histological* Hospitals. 48 Schaeffer : Essentials of Histology. 1892. 47 N. Y. Medical Record, xl., 1891. 48 Anat. Anzeiger, vi., 1891. 45 Miinchener Med. Wochenschr.. No. 8, 1891. 60 Boll dei Musei di Zool. ed Anat. Compar. della R. Univ, di Torino, v., 1890. 61 Abh. k. Akad. Wiss. Berlin, 1885. 62 Anat. Anzeiger, ii., 1887. 63 Zool. Anzeiger, xv., 1892. 54 Anat. Anzeiger, v., 1890. 48 Proceed. Amer. Soc. Microscopists, 1891. 86 Gage, S. H. and S. P.: Proceed. Amer. Soc. Microscopists, 1889. 87 Centndbl. f. Allgem. Path. u. path. Anat., 1890. 88 Journ. Pathol, and Bacteriol., i.. 1892. 89 Quart. Jour. Mier. Science, xxxiii., 1891. 60 Jour. Anat, and Phys., xxvi., xxv., 1891. 61 American Naturalist, xxii., 1888. 63 Zeit. f. wiss. Mikr., ii., 1885. 63 American Naturalist, xxvi., 1892. 64 Ibid., p. 354. 88 Queen's Microscopical Bulletin, 1887. 68 Arch. f. Mikr. Anat., xxxviii., 1891. 87 Jour. Roy. Mier. Soc., vi., 1886, 1889, 1891, 1892. 88 Behrens, Kossel, u. Schiefferdecker : Das Mikroskop. u. d. Meth. d. Mik. Unters. Braunschweig. 1889. 89 Amer. Mo. Mier. Journal, xii.. 1891 ; xi., 1890. 70 Gage, S. H.: Histology and the Microscope. 1892. 71 The Microscope, x., 1890. 72 Zeit. f. wiss. Mikr.. ix., 1892. 73 Boston Medical and Surgical Journal, cxxviii., 1893. 74 American Naturalist, xxi., 1887. 78 The Microscope, ix., 1889. 78 Druggists' Circular. 1892, 1890. 77 Bristol, C. L.: American Naturalist, xxvii., 1893. 78 Proceed. Amer. Mier. Soc., xiv.. 1892. 79 Arch. f. Anat. n. Physiol., 1886. 89 International Jour, of Mier, and Nat. Science, iii., 78, 1893. HONFLEUR. A seaside resort facing Havre, on the other side of the river Seine. Although the place is de- cidedly popular and even fashionubte, the beach is muddy and bathing is not of the best. The sea-air is, however, bracing, and many English have selected Honfleur as a place of residence. The hotels are fairly good, the prin- cipal one being the Cheval Blanc, situated on the quay. There are good opportunities for excursions, both by land and on the sea. The town itself is not especially at- tractive. Edmund C. Wendt. HOSPITALS, CONSTRUCTION AND MANAGE- MENT OF. The history of hospital construction during the last decade is especially interesting in some of its particulars. There has been ample evidence of advance- ment in the application of the principles that were largely evolved from the experiences of the civilized world in the care of the sick and wounded of the great wars in the third quarter of the century. There is now not only a more general understanding of the way to build good hospitals, but other influences have been at work, making it comparatively easy to build, administer, and support them. The science of hospital construction has been taking a more definite form, as is shown by the literature of the subject, which has received some notable additions since the publication of the valuable work of Mouat and Snell, ten years ago. The description of the Johns Hopkins Hos- pital, in a quarto volume, with its plans admirably com- plete in the detail they give, is an instructive source of information for all builders of hospitals. The recent pub- lication of Burdett's great work on the " Hospitals and Asylums of the World," with its four volumes and port- folio of plans, is the most excellent presentation of the subject, in all its departments, that the world has yet seen. A distinctly new phase of hospital work has reached a fuller development than ever before. It is the more gen- eral distribution of small hospitals in the smaller cities and towns. The tendency in this direction, though long existing, has been slow in its results until the rapid pro- gress of the last few years. It is not many years since there were few hospitals for general medicine and sur- gery outside of the large cities. The great hospitals, while being local charities for the treatment of the more ordinary ills, were almost the sole seats of hospital work and its medical and surgical clinics, with their notable cases, and capital operations by notable men. But there was bad hospital construction, with its evil consequences, and the lack of modern skilled nursing, that now makes (SUPPLEMENT.) it possible to do good work even in some bad hospitals. The physician in private practice, at that early day, had conditions often better than those of the hospitals for the splendid work that Ayas done by individual men under circumstances in many ways adverse to success. Almost any healthy house gave the sick man a better chance than the hospitals, except for the pre-eminent skill derived from the experience gained in them. The great change that has come about in hospitals and their work, particularly in that of surgery, was first largely due to the use of anaesthetics. After that the world learned how to make hospitals healthy, and the skilled nurse came to multiply the resources of the phy- sician and surgeon. But while the mechanism of hospital work was becoming more complex, it became more pre- cise. Successful surgery, for example, formerly de- manded certain qualities of boldness, swiftness, and the like, as well as scientific knowledge. There were fewer surgeons then than now. Modern progress has tended to the development of specialties, particularly in those in- volving surgical manipulations. These are now applied with more deliberate judgment, and more of the precision of an exact science. With the safeguards of asepsis, conservative surgery, and medicine as well, have made possible some of the greatest scientific advances. The modern surgeon may achieve success through study, time, and practice of very definite methods. Boldness and swiftness are largely supplanted, or tempered, by caution and painstaking attention to details. These are still consistent with the courage that is based upon better knowledge. With more complexity of manipulation in the art, special conditions for its practice have become more necessary. The increasing wealth of the country and its growing philanthropy, are in happy union with the greater need of hospitals, which has come because so many things can be done only in them, or so much better done than in private homes. The appreciation of this has led to the establishment of many small hospitals within a few years. They are aided in their support by the custom that requires patients to pay according to their means. In New England especially many of the smaller towns have their hospitals, or are beginning to get them. They have become possible also, as to their successful management, through the services of trained women. We are witnessing, in one generation in civilized countries, both a great change in social life in some of the particulars here referred to, and the evolution of prevent- ive and conservative medicine in ways that were never possible before. The skilled nursing that was at first taught only in the schools of the great hospitals, was elsewhere chiefly the luxury of the rich. It is now get- ting nearer to the poor in their homes, and becoming the boon of the greater public that has heretofore been so much beyond the reach of the common hospital privi- leges of the large cities. It is not meant to say that these conditions are peculiar to New England, but in the eastern section of it they have reached a further development than elsewhere in this country. Within less than a dozen years a number of small hospitals have been built in that section, and it does not need a prophet to predict the coming of the time when there will be the " cottage" in every town adapted to hospital uses for its locality, and supported in part by public money. They will be the common schools of nursing for the local service. While there has been an extension of hospital construc- tion, on the lines of the correct principles now so well es- tablished in these small hospitals, a departure has been made from previous ideas in the invention of special constructional devices for promoting aseptic surgery. A few unique examples of such surgical buildings are now in existence. The great advances in bacteriology have also stimulated much attention to infectious diseases, and the building of special hospitals for their isolation and treatment is be- coming more common. This affords another example of the progress of preventive medicine, and the village hos- pital should become a part of the general system of pre- ventive care of infectious diseases. 445 Hospitals. Hospitals. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. The purpose of this article is to note recent progress in hospital construction in the three ways that have been mentioned. The first of these relates to the extension of the English cottage hospital system in America in recent years. In some cases dwelling-houses have been inexpensively adapted to the purpose ; and slow progress was made, at first, because the cost of specially construct- ed buildings was beyond the available means. But while it has been sought to get what is wanted at a moderate cost, the value of the thing itself has become better ap- preciated. The ways of raising money for such purposes have been learned, and there is more liberal giving. Still the demand is for small effective hospitals at such an ex- pense that every thriving community in the country can make available for the common need the proper condi- tions for modern medical and surgical treatment. The City Hospital of Quincy, Mass., is an excellent example of what has been done in providing a hospital that, in the three years of its existence, has made a cred- itable record, and become a model of construction that others have followed. The hospital, with the adminis- tration house and one of its two wings, cost when com- pleted for use $16,500, and with three and one-quarter acres of land, valued at $8,000, was given to the city by Mr. W. B. Rice. The furnishing cost about $3,000, and, with almost all the equipment, was paid for by societies and individuals ; the hospital on completion was free from debt. The endowment fund for free beds reached the amount of $33,600 in the second year. The support of the hospital is aided by the city, by receipts from private patients, and by collections from various sources. A " Hospital Aid Association" also makes valuable contri- butions from its membership of seven hundred, at an annual fee of one dollar each, besides rendering aid in other ways. The hospital has a capacity of twenty-five beds ; it was opened in June, 1890, and admitted one hundred and two patients the first year, and one hundred and forty-six the second year. The net cost of support is something over $8,000 per year. The building, designed by W. P. Wentworth, the archi- tect, is of wood, and occupies a fine, elevated site with a southerly aspect. The plan (Fig. 293) shows two one- story pavilions, one of which is not yet built. The pa- vilion contains fourteen beds; there are six rooms for private patients and a small ward in the second floo? of the administration house. The heating is by steam, by indirect radiation ; there are ventilating openings under (SUPPLEMENT.) the beds leading to a vent shaft two feet square, and others in the ceilings are connected with ventilators in the roof; there are also fireplaces in the wards and rooms. All rooms have rounded corners in the plaster- ing ; the hard-pine floors, and white-wood finish, also have all angles rounded. The plumbing is modern with all pipes, etc., exposed, and the drainage is good. The hospital is under the charge of a matron, who is required to be " an educated and skilful nurse." There Fig. 294.-The Waltham Hospital. First Floor Plan. is a regularly organized training-school, and some in- come is derived from the employment of pupil nurses outside of the hospital. A corporation of-over three hundred members elects twelve trustees, who control the management of the hospital through an executive com- mittee. There is a medical board that nominates the members of the medical and surgical staff, which in- cludes physicians of both regular and homoeopathic schools. The details of organization and management here given afford a good example of the method adopted in many of the small hospitals. A new hospital at Waltham, Mass., opened within the past year, is built upon a plan in which the " mill prin- ciple " is applied for the first time in such a structure, '' thereby securing numerous advantages at a compara- tively small cost.'* The architect was William Atkin- son. There are two plain, rectangular, substantial buildings of brick. The administration house, three stories high, contains the ottices on the first floor, six private rooms on the second, and the kitchen and laun- dry on the third floor. A two-story pavilion contains on each floor a ward of eight beds, and one bed in each Fig. 293.-City Hospital of Quincy, Mass. First Floor Plan. 446 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Hospitals. Hospitals. of three separate rooms. The capacity of the hospital is twenty-eight beds, and Fig. 294 shows the general ar- rangement of the buildings. Their oblique position is due to the peculiar conformation of the lot upon which the hospital stands. The outside walls diminish four (SUPPLEMENT.) ing," it being possible to have no concealed spaces in the walls or elsewhere. The heating is by steam, and the distribution of the 'warm air is aided by a propulsion fan. The inlets are seven feet above the floor, and the ven- tilating outlets are at the floor level ; all the flues are built into the brick walls. The cost of the completed building, including plumbing and heating apparatus, was about thirty-eight thousand dollars. There is an endowment fund for free beds, and sub- stantial contributions to the support of the hospital are received through the work of the "Ladies' Hospital Aid Society." The executive officer of the hospital is a matron, who is a trained nurse. The nursing service is entrusted to the Waltham Training-school for Nurses, which is a peculiar institution ; it was a successful or- ganization before there was any hospital, and the train- ing was given entirely in the work of " home nursing." The novel plan of this school and its foundation are due to Dr. Alfred Worcester ; it is worthy of careful study and imitation, for it makes possible the advantages of trained and skilful nursing in places where hospitals can- not be afforded. It provides also a way for the helpful enlargement of the facilities for instruction in the small hospitals. The trustees are preparing for the reception of infectious and contagious cases, a disinfecting station, and an ambulance service. An interesting variation of a one-story pavilion plan for a general hospital is given in Fig. 295, showing the arrangement of wards and rooms in the Convalescent Home, at Wellesley, connected with the Children's Hos- pital in Boston. The building is of brick ; it is beautifully situated in grounds that have liberal space and shade ; and it is ad- mirably adapted to its special purpose. It is so situated that the windows opening upon the piazza look to the south. The administration building is of three stories ; and each of the pavilion wards contains twenty-three beds. The cost of the completed hospital approximated fifty thousand dollars. A fine example of the double pavilion plan of con- struction has just been completed at Hanover, N. H., in the neighborhood of Dartmouth College. The Mary Fig. 295.-Convalescent Home for Children, Wellesley, Mass. inches in thickness at each story. The peculiarity of construction is that the floors and roof are of plank, laid on hard-pine timbers : and the interior partitions are of three-inch spruce plank, grooved and splined and set Fig. 296.-Mary Hitchcock Memorial Hospital. up vertically. The walls and ceilings of the ward build- ing are finished throughout in adamant plaster, as are also the six pay-wards for single beds, and the accident and operating-rooms of the main building. For the rest of the building, the brick walls and the plank partitions are finished in varnish. The object gained in this method of construction is that it is economical and " slow-burn- Hitchcock Memorial Hospital is the generous gift of Mr. Hiram Hitchcock, of New York ; its benefits will be felt by the College, Medical School, and the town and country around. The perfection of the building is due to the aim of the donor to provide everything desirable as a hospital requirement, and the construction is of the best in materials and workmanship. The architects 447 Hospitals. Hospitals. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. were Rand & Taylor, of Boston, and the writer has acted in an advisory capacity. A brief description will be given here, and for a more detailed one, reference is made to Burdett's new work on hospitals. The hospital consists of four buildings, three belong- ing properly to it, and the fourth, a surgical operating theatre, being designed for the special purposes of the medical college. The cut (Fig. 296) shows in part the ex- teriors of the four buildings. The material is of Pompeian brick of a mottled yellow-gray color, and the orna- mentations are in a light-colored terra-cotta. The roofs are of light-red Spanish tiles. Their domed form is an outward expression of the fact that the interior construc- tion throughout is of the "cohesive system," by which (SUPPLEMENT.) leading to the pavilions, there are tiled floors. In the lavatory and bath-rooms, operating theatre, and conser- vatory or sun-room, and in all of the basements, the floors are of granolithic cement. The stairs are of marble, slate, or cement. The outer walls are hollow, and the plaster- ing is upon the brick. The cost of the building, ready for use, will be something over one hundred thousand dollars, exclusive of the surgical building. The plan of the first floor (Fig. 297) presents the ar- rangement of the wards and rooms with much detail, to which little need be added. The entrance hall of the administration building, which faces the south, leads to a rotunda which is finished in marble and oak, with an appropriate tablet giving it a •MARY HITCHCOCK- MEMORIAL HOSPITAL- HAP1OVER, H.H. •Rand Taylor -.Architects • Boston,'Mass Fig. 297.-Mary Hitchcock Memorial Hospital. First Floor Plan. all ceilings are formed of layers of vitreous tiles laid as shallow arches, or higher domes, over the rooms, and sustaining the floors above. This is an adaptation to modern use of the early Italian and Spanish dome-con- struction, and this building is the first in America planned especially for the modern application of this method throughout. The inner partition walls being all of brick, there is a unity of fire-proof construction, largely of vitreous and non-absorptive materials, including the outer walls. There is no iron or wood for the support of stair- ways or other construction, and only the floors and slight finishing around doors and windows are of hard pine, except where the woodwork is of oak, in the first and second stories of the administration building. Here, in the main hall, the first floor is laid in marble mosaic ; and in the connecting corridors, serving as sun-rooms and memorial character. The second floor contains eight private rooms in the main building, and the service rooms, etc., are in the rear extension, with an intervening cross lobby. The third floor has accommodations for twelve nurses. The one-story pavilions contain each a ward for ten beds and four private rooms ; the capacity of the hospital is thirty-six beds. The ward, 28 x 36 feet, has an arched ceiling at the height of 13 feet, and while it has all the advantages of a round or octagon wrard with a central chimney and vent-shaft, its general rectangular shape is better for convenience of service and arrange- ment of furniture. The bath-room and lavatory, with a screen between, form together a lobby surrounding the inner apartment containing the water-closet, etc. The surgical building has a high-domed roof, showing hand- somely the tiled construction, in which are ample sky- 448 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Hospitals. Hospitals. lights. 1 he heating is by steam and indirect radiation in all wards and rooms. The warm air inlets are near the floor and mainly under or near to windows. The boilers are placed in a deep basement under the surgical building. The ventilation of the latter is by the chimney with a central smoke-flue. In the wards it is by the cen- tral chimneys also; elsewhere there are vent-chambers in the roof to which the ducts are led from the rooms. There are openings under the beds in the large wards, connecting with the base of the large chimney, and in other rooms near the floor and ceiling into ducts, which rise mainly in connection with the chimney stacks. The rooms for nurses and servants, in the second and third stories, are warmed and ventilated by the transom system, the warm air abundantly supplied in the halls enters through the open transoms, and after traversing the room, aided by the chilling it receives at the windows, makes its exit by vent-openings near the floor in the interior walls. The ventilation, as a whole, is accomplished by a simple and effective application of the extrac- the St. Luke Free Hospital and the Michael Reese Jewish Hospital in Chicago. In England two especially interesting plans are those of the West Bromwich and the Swansea Hospitals. In Germany the Augusta Hospital at Berlin is particularly noteworthy. The Presbyterian Hospital in New York is an impor- tant example of a recently constructed large hospital, it having been rebuilt and greatly enlarged since its destruc- tion by fire a few years ago. It now has 315 beds in 30 wards, mainly in three pavilions of three stories each, with one or two subjacent stories used for other pur- poses. It is expensively and finely built, fire-proof, ami at a cost of $875,000. Its arrangements are elaborate, and include a model operating pavilion, a dispensary, and pathological department. In the value of the land upon which it stands, its high buildings, and the conse- quent complexity of its heating and ventilating arrange- ments, it illustrates the tendency that sometimes prevails under such conditions, to depart from the rule of simplicity of construction. The Methodist East Pavilion. Mioole Pavilion. Fl R ST rLOOR Pl a n. West Pavilion. Fig. 298.-Memorial Wards, Pennsylvania Hospital, tion system, and renders it easy to change the air of the wards and rooms at least three or four times per hour when desired. The plumbing is fitted with the best modern appliances, all pipes and traps are exposed, and discharge into risers of soil-pipe in pipe-shafts which serve also for the venti- lation of these special apartments. All water-pipes also have their risers in these shafts, the waste heat from those for hot water aiding the ventilation. The furnishing selected by Mr. Hitchcock is of the best materials and admirably suited to the strictest hospital requirements. There are now, in this country, so many small hospitals of the class here illustrated that the mere mention of them would make a long list. Among the newer and notable ones are the Arnot-Ogden Memorial Hospital at Elmira, N. Y. ; the Margaret Pillsbury General Hospital at Con- cord, N. H. ; the Memorial Hospital at AVorcester, Mass. Burdett gives some interesting examples of small hospital construction. Among them there are, in this country, Episcopal Hospital in Philadelphia is an excellent exam- ple of a two-story pavilion hospital built upon a plan admirably elaborated by Dr. Billings, and designed to accommodate, when fully carried out, 300 patients. The Presbyterian Hospital in the same city has some new surgical wards that well represent the strict application of the principles of construction of one-story pavilions. The Pennsylvania Hospital has an excellent new house for nurses, and an out-patient department; and a new surgical hospital is now in process of construction on the grounds in Pine Street of this historic institution, which was built in 1750. There will be three separate pavilions built upon plans by the architect, Addison Hutton, in conference with the writer. The limitations as to the area and form of the lot, led to a variation from the gen- erally adopted plan of construction in the pavilions, in order to utilize best the whole space for these and fut- ure structures, and preserve the pavilion principle. The buildings are of brick and granite, and harmonize with 449 Hospitals. Hospitals. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. the colonial style of the old hospital; they are so placed that their head-houses face in the opposite direction and toward the northern boundary of the lot, at a distance from it of twenty-five feet. The grade becomes lower here, permitting, for the central building, a carriage approach and an entresol entrance in the basement story, which is ten feet high. A large bay is formed upon this end of the build- ing and affords a fine oval room on the first floor, which with this mode of entrance is treated to give a special memorial character to this part of the structure. Beyond this the base- ments are mainly used for purposes of ventilation and warming. The first floor plan of the three buildings is given in Fig. 298. They are connected by a basement corri- dor which extends to the central part of the old hospital ; the corridor forms a covered way with open sides between the pavilions on the first floor, and a terrace on the second floor. The distance be- tween the buildings is 45 feet at the narrowest, and 50 feet where the large wards are. The sides of the buildings are free from projections. The central pavilion is of three (SUPPLEMENT.) stories ; the rear half of the corridor on the first floor be- ing a passage to the other wards, the adjoining rooms are arranged for special uses, and are not commonly occupied by patients. The memorial rooms and four special tf yURQlCAk WARD AMD OPERATI/sq THEATRE. Fig. 300.-Biadlee Memorial Ward, Massachusetts General Hospital. wards occupy the front end of the building. The east and west pavilions, two stories high, have each two large wards of 20 beds each, and two special wards, be- sides the service-rooms. The large wards are 35 by 60 feet, with a central chimney and vent shaft, and fire- places. The height is 13| feet, and the ceiling is some- what arched at the sides and ends. It may be described as a long octagon ward with the advantages both of that and of the rectangular form. It is exposed to sunlight and air on the east, south, and west, and nearly all of its exterior walls. The second floor of the central pavilion is shown in Fig. 299. This is for the gynecological service, with a large ward of 10 beds, and smaller special wards, an operating-room, etc. The third floor has a similar ar- rangement of rooms, to be used for women and children; the latter have two wards containing 19 beds. The total capacity of the three pavilions is 140 beds. The floors of the first story and all rooms in which there is any water-service will be constructed through- out of iron beams and hollow bricks. The finish is to be plain and substantial with all angles rounded; mar- ble and tiles will be freely used in appropriate places, in- cluding the operating-rooms, etc. All toilet-rooms have plumbing exposed, and are arranged with a central shaft for all pipes and for the independent ventilation of these special apartments fvhich are cut off by a screened lobby from the main halls. The heating is by steam and indirect radiation. Else- where than in the large wards, which have special vent- chimneys, the ventilation is by ducts leading to cham- bers in the roof. The outflow in all of these may be accelerated by heat from steam-pipes. The extraction system is applied in its simplest form, so as to work auto- matically with the smallest need of attention. The demand for aseptic conditions in modern opera- tive surgery has been met by the invention of special constructional devices in rooms to be used for that pur- pose. The first notable building of this kind was erected at the Massachusetts General Hospital, in 1888, as a memorial building. It is a one-story pavilion, and its plan is shown in Fig. 300. The building is ap- proached from the other parts of the hospital by an un- covered way. The ward itself has the general arrangement of rooms designed for isolation, the corridor between them being 8 feet wide and 24 feet high, with a monitor roof with many windows that may be freely opened. This gives the corridor, in relation to the rooms, the effect of their opening upon the outer air. The lavatory, scullery, etc., are outside of the building, with an intervening lobby protected at the side only by a screen. The passage is guarded by double doors swinging both ways. The heating is by steam and indirect radiation, the inlets be- ing under the windows. These have transom lights over them. The ventilation is by an independent duct in the chimney for each room. The walls and ceilings are Mioolc Pavilion Second Floor Plan Fig. 299.-Memorial Wards, Pennsylvania Hospital. 450 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Hospital*. Hospitals. painted, the floors are of hard pine, and the finishing in wood and plaster has all corners rounded. The special feature of the building is the operating theatre. At the northerly end a door from the main cor- ridor opens into a connecting lobby, which is divided midway by swinging doors. A door to the right opens upon a flight of steps intended for the entrance and exit of the hospital attendants. Beyond the swinging doors, one in front opens directly to the amphitheatre floor, one on the right to the surgeons' consultation-room, and one on the left to an etherizing-room. Doors from either room connect with the theaFre. The walls are of pressed brick ; the floors, like those of the corridor and theatre, are of asphalt. The floor of the amphitheatre is circular in outline, with a diametei of 18 feet. Directly over this is a moni- tor roof of hammered glass, with an area of 280 square feet. Contiguous with this glass roof, at the northerly end of the theatre, is a window made of four sheets of plate glass, the combined area of which is 192 square feet. Beginning at either side of this window is a wain- scoting of polished white Italian marble, continued so that it encircles the whole operating space. Above this wain- scoting, and projecting Over it, is the first circle or tier of the balcony, guarded in front by a heavy iron and brass railing. The balcony affords standing room for about one hundred spectators. Opening out of the amphithea- tre, on the westerly side, is a general supply-room. The corresponding space on the easterly side is a passage-way from an outside entrance to a flight of granite stairs leading to the balcony. From this passage-way, through an arched opening in the marble wall, access is had to additional standing - room for twenty - five spectators. This standing-room is obtained by three semicircular tiers of marble and flagging, extending from the amphi- theatre floor to the sill of the large northern window. The entire basement is concreted. It has no stairway connection with the floor above. The ward and theatre are lighted by electricity. The gynecological department of the Johns Hopkins Hospital being found to need a place to be used exclu- sively for operative work, a building was erected for that purpose in 1891. It was placed conveniently near the private ward for women. A plan of it is shown in Fig. 301. Its convenient and simple arrangement, and its in- genious special devices, make it an admirable model of a fitting provision for its work. The building comprises a large operating-room, 25.8 by 25.9 feet, the floor of which is covered with Sinsig tiles laid upon lime of Teil arches, and the walls are wainscoted to the height of four feet with Tennessee (SUPPLEMENT.) main corridor, and the building is one story in height. The operating-room is lighted by two windows looking west, a large double window looking north, and a large skylight. The windows and skylight are of obscured glass, so that the light which enters is thoroughly dif- fused, and strong and annoying cross-lights are pre- vented. The interior lighting is both by gas and elec- tricity. The structure is of brick, with a slate roof, and corresponds in general appearance with the other build- ings upon the grounds. The only departure from the ETHERIZING ROOM ELEVATOR INSTRUMENT ROOM MICROSCOPE. ROOM L^RCE. OPERATING ROOM Fig. 302.-Presbyterian Hospital, New York. Operating Pavilion. method of heating adopted in the remainder of the build- ings was in the location of the heating flues at a height of six feet from the floor, it having been found by expe- rience that this arrangement prevents annoying draughts of air upon patients. The new operating pavilion of the Presbyterian Hos- pital in New York has just been completed. The seating capacity of the main amphitheatre is one hundred per- sons ; it is in the upper story of the two in the building, and is shown in Fig. 302. It is finely lighted by large skylights and three great side lights on the north, south, and east. The wainscoting and floors are of marble, and the doors are heavy slabs of the same material. In the basement story, which is on a level with the corridor com- municating with other parts of the hospital, there are two other operating-rooms to be used when seclusion is desir- able ; there are also a recovery- and an etherizing-room, and those for instruments, etc. This building is a re- markable example of the adaptation of stone and iron to special devices of construction, excluding the use of wood almost entirely. The Roosevelt Hospital, in New York City, presents the most remarkable structure of this kind that is now in existence. It is the William J. Syms operating the- atre, a memorial building for which the bequest was $350,000. It has just been completed and equipped at a cost of about two hundred thousand dollars, and the res- idue provides a fund for its maintenance. It is two stories high in front and three stories in the rear. The amphitheatre occupies the centre of the building, and is lighted by a glass dome with a northern exposure, admit- ting the rays of light above and behind the audience ; as far as possible, the light that illuminates the operating- table is made to enter the room from behind the observer, and nearly parallel with his line of vision, with the ex- clusion of all cross-rays. The plan of the first floor may be seen in Fig. 303. The architect was W. Wheeler Smith, but Dr. Charles McBurney, the Attending Surgeon to the Hospital, was made responsible, in the will of the donor, for the con- struction and equipment of the building. The main entrance on Fifty-ninth Street is intended for the students of the College of Physicians and Surgeons that stands on the opposite side of the street. The broad xecovexv I ETHeKizizYq ROOM ■ ROOM OPEXATIZKS XOOM Covered Corridor Fig. 301.-Gynecological Operating-room, Johns Hopkins Hospital. marble. The walls are plastered with King's cement, which furnishes a hard, smooth, and non-absorbent sur- face, with little opportunity for the lodgement of infec- tious germs. Adjoining the operating-room is an ether- izing-room, 10 by 12 feet. Communicating with this is a recovery-room of the same size, with an adjoining bath-room and -water-closet. The building has also a supply-closet, dressing-room, and photographic room. It is heated by steam and ventilated by a shaft. The floor of the building is on a level with the floor of the 451 Hospitals. Hospitals. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. vestibule has a marble mosaic floor, and Italian marble is used for the interior finishing and the stairway leading to the upper seats of the amphitheatre. This has a seat- ing capacity for 185 students, but 330 could easily be accommodated within its space if it were desirable to admit that number of persons to a clinic. The seats, in six tiers, are of wood, with wooden backs only ; they are supported by being fastened to iron standards. A wain- scot of pure white marble, 5 feet high, encircles the room at the top of the amphitheatre, while behind the operator an unbroken surface of marble rises from the pit to a line on a level with the top of the wainscot before re- ferred to. Part of the pit extends backward to a recess lined with marble on every side, including its ceiling. The floor is of marble mosaic, and its immediate sur- (SUPPLEMENT.) The front part of the building rises to two stories, and the central and rear portion to three stories above a base- ment. On the ground floor the outer rooms, east and west, are only one story high and admit light by sky- lights as well as by large windows in the outer wall, which, from their situation, have to be fitted with semi- opaque glass. The rooms are carefully and ingeniously fitted for the uses indicated in the plan ; the instrument- rooms, for example, have cases of metal frames with glass doors, sides, and shelves, which were imported es- pecially for their purpose ; and there are many devices for promoting asepsis. An inclined plane has been pro- vided, in place of an elevator, by which patients may be wheeled to the recovery-rooms, four in number, on the second floor. STERILIZ- ING ROOM •OPERATING • ! ROOM • [SPECIAL : cases ; BANDAGES | WASHING I-' INSTRUMENTS SPLINT ROOM PREPARATION OF BAN PAGES SURGEONS ROOM CONNECTING CORRIDOR PARK KOOM •OPERATING • special! !cases ! photographing KOOM ENTRANCE HALL FIRST FLOOR PLAN Fig. 303.-Roosevelt Hospital. William J. Syms's Operating Theatre. roundings are finished in marble and iron. The steps leading to the seats of the amphitheatre are of slate. Under the seats the sloping surface is of asphalt over thin concrete on wire lath. At the top of the entrance stairway are two rooms, one for surgical records and the other for the house staff. A covered corridor leads from the Hospital to the first floor of the building, all of which is laid in marble mo- saic with angles rounded to meet a marble wainscot 5 feet high. Several of the most important rooms, where it is de- sirable to promote aseptic conditions, are fitted with doors of pure white Italian marble, inch thick, hung on massive metal hinges, a single slab in each case form- ing a door. The special operating-rooms for septic and other cases are fitted with all conveniences, the interior and equipment being chiefly of marble, glass, and metal. The amphitheatre, as indeed every other part of the structure, is supplied with gas as well as electric lights, to insure the building never being without efficient means of lighting. The warming is by steam, the air, taken at an eleva- tion of 22 ft. 8 in. from the ground, passes over steam pipes in great inlet ducts in the basement, and is forced by fans throughout the building ; it is driven by one fan to the amphitheatre alone, and by a second fan to all other parts of the building. Fresh air, either hot or cold, as may be desired, is sup- plied to the amphitheatre through one hundred four-inch cast-iron inlets, commercially described as goose-necks, penetrating the inclined plane under the seats and direct- ing the air, as it is received from the chamber under- neath, upon the surface of the inclined plane. Ventila- tion is by aspiration through a large register near the 452 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Hospitals. Hospitals. (SUPPLEMENT.) ceiling, into a heated chamber which thence discharges its contents, at the highest point of the structure, to the outer air. In all other rooms of the building separate vent-ducts rise directly upward to their exit openings, like chimney-flues-a system which entails the risk of down drafts of cold air in some of them if a careful bal- ance of the forcing and extracting power is not always maintained. Mention should be made of the sterilizing apparatus, occupying a room by itself and adding, in a marked de- gree, to the efficiency of the agencies employed to pro- mote asepsis. The building is a most notable one in its elaborate perfection and practical fitness for carrying the work of operative surgery to the last degree of refine- ment. The rapid development in recent years of the relation between the hospital and the community is bringing it about that the hospital is less exclusively the refuge of the poor, but a " palace of health " for all. In a recently published book on " The Nationalisation of Health," Havelock Ellis advocates a more complete legislative - control than is now had, of these interests in which the guardianship of. life is concerned. It is his view that, " in the end every medical man in the country would be attached to a hospital, and every person would be living within the district of a great institution of health.'' In England there is greater advancement in these mat- ters than in America. But it may be that here the great ends of preventive medicine are to be gained in a differ- ent way, by the more general distribution of smaller centres of sanitary control, and the education of the local practitioner through the reflex influence of the local hos- pital in which he works. One needs to go no farther than Waltham to witness the invention, already referred to, of a new kind of training-school that is destined to popularize the principles of nursing as a matter of com- mon knowledge and use, and to find also the beginning of a movement which should be successful there and elsewhere in bringing into the smaller cities and towns the life-saving appliances of a disinfecting station, of which there are too few even in the largest cities of the country. To the social economist, whose doctrine is that public health is public wealth, no more helpful aid has come than by the advancement of knowledge of the cau- sation of disease, which teaches the means of prevention. A broader socialism, acting upon the highest motives of philanthropy, is being developed in like manner through better knowledge of the laws of life which must be obeyed to cure both physical and moral ills. The admirable work of the Metropolitan Asylums Board in London stands as a model for the effective organiza- tion of hospitals and disinfecting stations for the protec- tion of the poor, and the whole community alike, from the dangers of infectious and contagious disease. It has been demonstrated by experience that the value of a per- manent isolation hospital is in its providing the means of isolating at once the earliest cases of disease, and thus preventing the epidemic, instead of leaving it to be bat- tled with when it has got full sway. In Burdett's work the admirable chapters on this subject are most instruc- tive. Valuable and precise information as to the best methods may be found in this work, and in Dr. Thorne's report " On the Use and Influence of Hospitals for Infectious Diseases," which forms a part of the " Tenth Annual Report of the Local Government Board for 1882." Among the plans given by Dr. Thorne is that of the Warrington Hospital. As a good type of such English hospitals, a plan of one of its small pavilions is shown in Fig. 304. A common arrangement is to group together a number of such small pavilions, and to connect them by a cov- ered way, open at the sides, with an administration block. The Warrington Hospital is of brick ; its arrangement is shown in the block plan, Fig. 305. There is a two-story administration block, a; two ordinary ward pavilions, w, w ; a special detached pavilion with like interior ar- rangements, except that its wards are reduced to a capa- city of one bed each, w ; a lodge at the entrance, c; and two groups of out-buildings, 5, d. One of the latter con- tains a laundry, disinfecting chamber, ambulance-shed, mortuary, and store for wood, coals, etc.; the other con- tains two hand-vans to be used in connection with the stove, and a store for garden tools, etc. These forms of pavilions are two of the four prescribed by the Local Government Board. The disinfecting apparatus is a "Ransome stove," otherwise well known as the Nottingham self-regulating of feet «•» TWELVE BED PAVILION Fig. 304.-Warrington Infectious Diseases Hospital. disinfecting apparatus, in which articles passed through it are subjected to a temperature of 250° F. by dry heat. It consists of a cubical iron chamber encased in wood with an intervening layer of felt, access to the interior being had by double doors. For disinfecting stations the chamber has doors on opposite sides, and is placed in the partition wall between two rooms, an * ' infected " side into which articles are carried, and a " clean " side from which they are removed. The furnace is placed at a lower level, and heat is generated by burning gas. There is an automatic regulator. A full description is given in Dr. Thorne's Report, pp. 210 to 214. An ap- proved form of apparatus employing steam confined under pressure, is Lyons's patent steam disinfector, one of which is in use at the Johns Hopkins Hospital. This is an expensive apparatus and somewhat difficult in its method of working. These and other forms of appara- Fig. 305.-Warrington Hospital. Block Plan. tus and experiments in testing them are described by Dr. Parsons in his report on disinfecting by heat, to the Local Government Board, in 1884. The Fever and Small-pox Hospitals of the city of Glas- gow form an extensive establishment, which was com- pleted in 1887. The Small-pox Hospital has ten wards in five pavilions, and the Fever Hospital has twenty-six wards in thirteen pavilions. The pavilions are of one story and are alike in form and arrangement; they are detached and arranged in groups with respect to their 453 Hospitals. Hospitals. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) isolation, and to the administration and service build- ings. One of these pavilions is shown in Fig. 306. The two hospitals occupy a country estate of 33 acres, with large gardens and pleasure-grounds, at Belvidere. The Fever Hospital was begun in 1870, the first pavilion being of wood. In 1879 the erection of brick pavilions was begun, and now all are substantial structures of that material. Ample and excellent accommodations are fur- nished for physicians and nurses. The cost of the Fever Hospital was about £76,000. The Small-pox Hospital is an outside platform or balcony from which there are sep- arate entrances to the rooms, for four patients, occupy- ing the corners of the building. From the ground level the balcony is reached through an opening therein, and by a stairway. The serving-room in the centre of the ATTENDANT PATIENT PATIENT NURSE NURSE 'SERVING ROOIA ' PLAN OF ONE PAVILION PATIENT NURSE NURSE PATIENT Fig. 306.-City of Glasgow Hospital. completely isolated by a boundary wall. The whole cost of it was about £30,000. A remarkable reduction has been made in the death-rate of the city since the opening of this hospital, due to a variety of causes, not the least among them being the efficient labors of Dr. Russell, the Officer of Health. This hospital affords the most strik- ing demonstration of the profit of guarding the public health. The Cambridge Hospital, in Massachusetts, has recently received an addition of a building for infectious and con- tagious diseases. It is on the grounds of the hospital, at an effective distance from it, and near the bank of the Charles River. The material is brick, and the symmetri- cal halves of the building are so arranged as to be entirely independent, and without means of communication ex- cept by going around the house, out of doors. It is of one story, except that a nurse's room in the attic for each section is accessible by an outside stairway. The plan is shown in Fig. 307. The construction is simple and substantial, as designed by Dr. Wyman ; it is for the treatment of diphtheria, scarlet fever, etc., VESTIBULE VESTIBULE. CORFtlDOa Fig. 308.-Isolated Pavilion, Presbyterian Hospital. building, and that of the attendant in charge of it, are accessible only by way of the basement. The Boston City Hospital is now being enlarged by a new and important hospital for contagious diseases. It is known as the Chester Park Hospital, and is subject to the limitations of a city lot. It is to receive cases occur- ring in the wards of the hospital proper and from the city at large. There is requirement for its accommoda- tions to be centrally situated in so large a city, rather than in any suburban locality that is available, which would be at a great distance from the major part of the population it serves. It is a handsome structure of brick, consisting of six principal buildings, with the adjuncts of a boiler-house, laundry, and morgue, and room for a small pavilion to be added in future. These adjuncts are not shown in the first-floor plan, which is given in Fig. 309. In the lettering of the plan B is bath-room, I) duty-room, E elevator, and 0, operating-room. The plans were designed by the city architect, Mr. Wheelwright, in con- ference with Dr. Rowe, the superin- tendent of the hospital, after an exten- sive study of the subject, and with the approval of its medical staff. The entrance gate is at the centre of the one-story lodge, which all per- sons who enter the hospital must pass through. The administration block, occupying a central position, is three stories high, and contains offices, and quarters for officers, nurses, and servants. Covered passageways, with open-air walks over them on the first-floor level, connect the basements of the buildings. The domestic building in the rear con- tains the kitchen, etc.; a dispensary, and a dining-room for servants, their chambers being on the second floor. A nurses' home, not shown in the plan, is a detached building to accommodate sixty nurses. The wards are in two pavilions, each two stories high, and are designed to accommodate 136 patients, including men, women, and children. At the junction of the com- municatinsr corridors with each navdion there are stens Fig. 307.-Contagious Disease Ward, Cambridge Hospital. such cases as may occur in the hospital, or may be re- ceived from the vicinity. This plan is a modification of one of those of the Local Government Board already re- ferred to. Here it is improved by entrance lobbies to the wards, more windows, and access to closet without ex- posure in cold weather. A bath-room would further im- prove it. An interesting example of a building for isolating the cases that may require it, occurring in a large hospital, is to be seen at the Presbyterian Hospital in New York. The plan is given in Fig. 308. It is situated within the hospital enclosure in the limited area of a paved court. At the level of the main floor, shown in the plan, there is 454 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Hospitals. Hospitals. leading up from the ground level to the first floors, and others to the basement floors underneath. Here there is an open way across the corridor from side to side, at the basement level, disconnecting the covered passage in the corridor from the building. The conditions for the treatment of patients in these wards require a classification, not only regarding the sex of patients and their being adults or children-permitting the latter to have their mothers with them in some cases- but there must be proper provision for isolating extreme cases of each of the special forms of disease, and the vary- ing and numerous complications of different contagious diseases. This grouping and isolation of patients is accomplished by the divi sion of each floor into four wards. There is an open ward of ten beds, and four*beds in three rooms, in the rear section. This large ward is for con- (SUPPLEMENT.) by an air-space like a lobby, isolating them from the main hallway. The plumbing fixtures of each section are ar- ranged around a shaft affording independent ventilation for these apartments, and a pipeway for all waste and supply pipes. Each section has its own linen and medi- cine closets ; and the shutes to the basement for soiled clothing are from the open-air cross corridors. The basements, reached by separate staircases from each section, contain the rooms for patients' clothing. At the entrance to the building, in the basement, is a series of rooms through which all visitors must pass. In the first room the outer clothing is left ; thence by a lobby another room is entered where a gown is put on to be worn while visit- ing the sick. On returning, this gown is left in a room on the opposite side of the building, and thence through an- other lobbv the visitor reaches the first Fig. 309.-Boston City Hospital for Contagious Diseases. J'CAUE. OF FEET valescents and looks southward. This section is separ- ated from the middle section by across corridor, opening broadly to the outer air at each end. An isolated stair- way, starting from the outside of the building, here leads to the second floor. The middle section is, in like man- ner, isolated from the front section, which also is divided in two parts in the same way by a broad opening leading to a wide loggia on the front of the building. Here are the two small probation wards near the front entrance. The floors of these rooms are of asphalt, the walls of white enamelled brick, and the ceiling of Keene's ce- ment. They have their own service- and bath-rooms, as does each section of the whole building. The walls of the isolating passages are also lined with enamelled brick, have mosaic flooring, and cement ceilings. The toilet- rooms are finished in like manner, and are surrounded room, where the outer clothing is resumed. Like pre- cautions are exercised by the attending physicians. The heating is by steam and indirect radiation. Each room has one or more ventilating outlets, one near the floor and ceiling for every duct in each room. These ducts lead to a vent-chamber in the roof for each divis- ion of the building. The whole lot is enclosed by a brick wall eight feet high. The application of sanitary science has made very slow progress in America, considering the great advancements in knowledge of the causation of disease. In the few States and cities where attention has been given to this subject, experience has shown the necessity of govern- mental control of sanitary matters. The work of the States of Massachusetts and Michigan in this regard has reached a development of methods that ought to be fol- 455 Hospitals. Hospital Steward. DEFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) lowed in every State. A department of public health, to be established by the national government, is the demand of the time. The definite knowledge that has now been gained by the scientific tests of disinfection establishes a basis for its practical application. According to Parsons, Stern- berg. Blyth, and others, heat is undoubtedly entitled to the first place among the agents available for the de- struction of infectious material external to the bodies of living animals. In nearly all the important infec- tious diseases of man and the lower animals, it is safe to assume that the temperature which kills the tuber- cle bacilli, 212° F., will be sufficient to accomplish dis- infection. Ample allowance is made, in directing the disinfection of all kinds of infectious material, by sub- jecting it to a boiling temperature for half an hour, either in water or steam. Exposure for ten minutes to steam under pressure to raise the temperature to 221° F., will accomplish the object. The fact that the spores of certain bacilli found in the soil resist a considerably higher temperature than this has led to undue exactions in the use of heat. Esmarch has shown that dry heat is less effective than moist heat, superheated steam being less so than streaming steam at 212° F. Exposure to the moist heat of steam at twenty pounds pressure-temper- ature about 230° F.-destroys the most resistant spores in twenty minutes. A temperature of 240° F. is effective almost immediately. The simplest way of disinfecting articles of clothing and other articles not injured thereby, is to immerse them in boiling water. Cholera germs are killed at 126.6° F., and typhoid germs at 138.8° F., by exposure for four and ten minutes, respectively. Infec- tious excreta of these diseases may be disinfected by add- ing three or four times their amount of boiling water. Sulphate of iron or chloride of zinc, in solution there- with, will deodorize and disinfect at the same time. This is a good rule for domestic and hospital use. The chem- ical disinfectant that is of practical value, and prompt in its action, is good chlorinated lime, which should con- tain at least twenty-five per cent, of available chlorine. A solution in the proportion of six ounces to one gallon of pure water being made, one quart of it may be used for the disinfection of each discharge in'typhoid fever, cholera, vomited matter, etc. Then the contents of the vessel being well mixed, it should stand for at least one hour before they are thrown out. Infected sputum should be discharged directly into a cup half full of the solution. The warming and ventilating of hospital wards is rightly regarded as a matter of great importance. The history of the subject, for the last thirty years or more, shows some curious changes of usage. There had pre- viously come about the development of very complex systems in large hospitals, and particularly in asylums. Forced distribution of air, and ventilation aided by the propulsion of a fan, were much in vogue. The experience in military barrack hospitals, and in those of the simple construction that followed, taught hospital men the effectiveness of natural means when employed in the use of simple constructional devices, under the laws govern- ing the movement of heated air. Very satisfactory re- sults were gained by the adaptation of the principles of the extraction system, by means of vent-chambers and chimneys, even in such establishments as the Massachu- setts General Hospital, Boston City Hospital, and Johns Hopkins Hospital, without the use of fans. It is perhaps through some failure to apply correctly the methods found so effective there, that there appears to be a reviv- ing tendency to resort to mechanisms driven by steam power or electricity for the propulsion of warm air into buildings, or for extraction of foul air. The practical fact is that the more machinery there is, the more the trouble from defective working, inattention, or ignorance in managing it, or its disuse after a time as ineffective or too expensive. The best way is to devise a simple sys- tem that will work if let alone, or requires the least pos- sible interference. It is only necessary to follow the simple law that a body of air relatively warmer than that which surrounds it will rise. Let it be conducted from the room to be ventilated to a chamber at a higher level, so that a body of warm air is held at a point intermediate between the room and the outer air. Artificial heat may sometimes be an aid in giving that chamber the requisite excess of heat. Under these conditions the chamber will discharge itself upward and outward through proper openings, without any danger of the reversal of currents downward through the ventilating ducts. Such rever- sals will occur in vent-ducts that open upward like chim- ney flues. Difficulty often arises simply from making the air-ducts and chambers inadequate in size, or attempt- ing to combine too many ducts, of different lengths, in one system. Hospital management comes next in order after the hospital is gained. A good hospital may become a bad one by bad keeping. Administrative troubles are often relatively worse and more disastrous in a small institution than in a large one ; when there is a tempest in a teapot there is no room even for a small tempest. In the or- ganization of the small hospitals the same principles should be regarded as in the larger ones ; there should be only one resident head of the administration, and all other resident persons should be subordinate. This is a simple business principle, and it is remarkable that intel- ligent people of business experience will, as trustees, try over again experiments in organization and control that have so often proved the error of departing from a funda- mental principle. It requires experience in the govern- ing board, as in any other business, before this special business can be understood. The small hospitals are being successfully managed by women trained in nursing, and who become skilled in executive work by doing it. The paramount object of the hospital is the business of caring for the sick. The position of the skilled nurse at the head of a small hospi- tal is precisely the same in principle as that of the medical superintendent of a large one. The maxim of Dr. Mouat is equally applicable in each case : "Those are best qualified to conduct a business successfully who are best acquainted with its requirements." There are two special sources of trouble-fundamental conditions from which trouble and failure are sure to come some time or other. They are either faults of the system, w'hich even good people cannot get on with ; or faults of the individual under a good system. It is true that a dual arrangement is sometimes successful ; that proves the goodness of exceptional persons. Again, when the organization is correct in principle there are examples of the failure of individuals in executive capa- city and tact, and the governors proceed to change both the individuals and the system. A vast amount of heart- breaking care and trouble could be saved, and disaster averted, in a struggling hospital that means so much to the community that supports it, by the recognition of a simple truth. There should be one head of every hos- pital household, who, under the controlling board, should have the sole and entire direction of its business. That head should be a person educated to the business, a medical man or woman, or an educated and skilled nurse. There is one fundamental element in this matter that strangely appears never to be recognized as it ought to be. It is something more than the recognition of the business principle of one executive head. It is worth the utterance of many words to get it made clear, for the sake of the helpfulness it may bring to many a devoted and hard-working hospital officer, whose life is one of trial at the best. This fundamental principle is that, while the management of a hospital is a business, it is not like the business of managing a factory, ora mercan- tile house. The hospital, besides being the place of busi- ness, is the home of all the people in it. The household element is there ; it is a family. The head of the family has a personal, protective relation to its members, con- trolling their peace and comfort. The fundamental rule therefore is, never disregard the principle of family headship in the hospital household. This applies alike to the man or woman who is at the head of it. A woman superintendent should be a trained and skilled nurse to 456 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Hospitals. Hospital Steward. (SUPPLEMENT.) begin with ; she should have executive capacity ; and she should be helped by affording her time in the work to gain the efficiency that only experience can give. All other persons in the hospital should be subordinate to her. After this is done there remains one most important principle to be regarded : give the superintendent full authority, and hold him or her responsible for all that happens, but afford a chance for the exercise and protec- tion of the responsibility. Above all things, the subor- dinates should not be meddled with, they should be managed only through the head of the house. This is perfectly safe, for they can always be accorded the right of appeal. Then it is fair, and only then, to expect suc- cessful work from the executive officer ; and then, if there is failure of a well-supported officer to get good results, it is the fault of the individual alone, and the course to be pursued is plain. By such a plan of organ- ization the relations of all concerned are made definite and intelligible, and there is no going against nature and the family principle, which always underlies the mixed organization of a civil hospital. Edward Cowles. HOSPITAL STEWARD, DUTIES OF, IN THE U. S. ARMY.-The Hospital Steward is the executive officer of the hospital, in the post and in the field. Under the supervision of the medical officer, on the steward de- volves the care of property, the maintenance of official records and correspondence, the management of food supplies, the dispensing of medicines, the extraction of teeth, and the application of minor surgical dressings. He fills the place of the house physician of a civil hospi- tal in minor accidents and emergencies ; he is responsi- ble for the instruction and discipline of the members of the hospital corps under his command ; on his vigilance largely depends the zeal and efficiency of the cook, nurses, and other attendants ; he must see that all orders are obeyed, all work fairly apportioned and properly done. To fit a steward for these multifarious duties he must have served at least a year in the line of the army, than which there is no better school of discipline ; he must have served at least a year as a private of the hospital corps, and at least another year as an acting hospital steward. He is given access to works on chemistry, pharmacy, anatomy, and minor surgery. For his in- struction there is a Handbook for the Hospital Corps, The Soldier's First-Aid Handbook, and The Drill-book for the Hospital Corps. He can study Army Regulations, General Orders, and Circulars, and the blanks for the various reports. Beyond all these there is still much to be learned that has heretofore been left to haphazard observation of the methods-not always the best methods -of the stewards under whom he has served. Unwrit- ten tradition perpetuates error, shackles truth, prevents progress; to gather and arrange these neglected trifles, to till the ground uncovered by the above-mentioned lit- erature, is the aim and scope of this article. I. In Garrison. The Routine Duties of a hospital steward in the United States Army intermit for sleep, remit for recreation, but are practically one continuous round. Where the cares of the passing day overlap the prospective duties of the morrow is a good initial point for their survey. We will begin with the Meteorological Observation, taken at 6 p.m., and entered at once in the Register and on the Blank Report which is to be forwarded at the end of the month to such Weather Bureau centre as may be directed for the sta- tion. Both must be kept neatly ; there will never be a more leisure moment. Scratch-block memoranda are so much extra work, increase the chances for errors, and are a useless waste of time. After the last observation for the month, totals and averages are computed on the Register and Blank separately, results compared to de- tect errors, and both are ready for signature. After recording the meteorological observation the events of the day will be recalled to discover any possi- bly unfinished business-to be completed now. The desk is put in perfect order, with an eye for memoranda possibly overlooked. As far as possible to-morrow's Morning Reports for the sick and for the hospital corps will be prepared. In a blank-book, ruled as in Table L, are entered the names of all the sick remaining, or taken up during the day, arranged by organizations. May 15, 1900. Table I. Name. Rank. Co. Rcg't. Dis. Diagnosis. Treatment. Stein, Jacob .. S. M. 8 C. H. Sprain R. ankle. Misstep on pa- rade. Hot water ; bandage; rest. Pugh, Henry.. 0. S. G.N.C.S. Q. Powder burn R. hand and cheek. Def. primer. Ext. g r s. carb, oil, 1- 40. Atkins, Peter.. C. I. 24 I. H. Ac. diarrhoea ... 01. ric., X oz. ; tr. op., Hl XX. Jones, John... P. A. 9 C. D. Toothache Ext'd R. U. A. molar. This book is for convenience, and the following ab- breviations are admissible if care be taken not to trans- fer them to the permanent records, viz., IL, Hospital; Q., Quarters; D., Duty; G- N. C. S., General Non- commissioned Staff; P. Q. S., Post Quartermaster Ser- geant ; O. S., Ordnance Sergeant; C. S., Commissary Sergeant; S. M., Sergeant-Major; H. C., Hospital Corps; H. S., Hospital Steward ; B. L., Band Leader ; C. M., Chief Musician ; S., Sergeant ; C., Corporal ; P., Private ; F. Farrier. For regimental designation cardi- nal numbers are as good as ordinals ; d, nd, st, and th consume time, occupy space, and obscure the record. 1 A., 3 C., and 8 I. are sufficiently distinctive for First Artillery, Third Cavalry, and Eighth Infantry. If to-morrow will be the 10th, 20th, or last day of the month, Ration Returnswill be prepared as far as prac- ticable ; also, if the last of the month, the Requisition for Fuel, Forage, and Straw. " In the gloaming"-from six to seven o'clock-is the best hour for effective work, an hour of quiet and free- dom from interruptions. If, habitually, all possible work is done at this time, daily tasks will be so lightened that fatigue will not now unfit for close application. With all work complete, the steward will have an evening for reading or recreation. With an assistant to put up the prescriptions that will come straggling in toward tattoo, he can safely leave the hospital. Just before going to bed a look through the building and about the grounds must be taken. If anything be amiss, the proper man will be called to adjust it. The steward will do nothing himself ; if he goes about at night putting out lamps, securing gates, and locking doors, his detachment will soon depend upon his vigi- lance, and negligence will grow apace. The steward must see that helpless patients have pro- vision for all their needs during the night ; must satisfy himself that all-patients and members of the detach- ment-are present and in their proper places. Let everyone feel that absentees will surely be detected and reported. The hours allotted to repose are none too long; and effective work by day cannot be expected from men who travel about by night. From Reveille to Surgeon's Call.-The presence of each member of the detachment must be verified. Breakfast is now on the table ; consider its quantity, quality, and variety. The steward must see that the men who come to the dining-room are fully dressed, neat and soldierly in appearance. A bright dawn betokens a clear day ; and men who habitually start right in the morning will rarely need correction before night. The patients must be counted, and each receive a careful scrutiny. There may have been changes during the night requiring an immediate report to the medical offi- cer when he comes. Men in collapse, small-pox erup- tions, and many other things ought not to await the sur- geon's visit at a later hour. The steward will see that 457 Hospital Steward. Hospital Steward. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) the ward is properly warmed and ventilated, and have corrections made at once. Conditions, not seasons, must be the guide. After a cold rain in July, the ward may be chill and damp, and tire be as essential as in Decem- ber. Quiet throughout the hospital will be enforced. Reveille is not sounded for the very ill. Undisturbed rest in these early morning hours may turn the scale toward health in critical cases. Let the invalids sleep ; their breakfasts can be kept for them. The steward now takes a complete survey of the build- ing and grounds, and gets the general run of the hos- pital work. Frozen water-pipes, defective flues, things done improperly or left undone the day before, are all proper subjects for consideration in his early morning round. Each attendant knows his allotted task and will be doing it now ; but the steward's judgment will be tried by never-ceasing variations. Each contingency must be met with prompt decision. If many helpless patients await their morning toilet before breakfast, the regular nurse is supplemented by utilizing the more in- telligent convalescents and as many attendants as may be necessary. If snow-drifts are to be cleared away before Surgeon's Call, the man who attends to the outside police must be reinforced by other attendants, and less impor- tant work delayed. A good beginning will save much trouble and annoy- ance throughout the day; but inattention to these duties may bring trouble and humiliation later. Should the steward offer for the surgeon's signature morning re- ports showing all present and learn later that a member of his detachment, or a patient, had been arrested in town during the night and was still in jail, he would justly forfeit the confidence of his superiors. Surgeon's Call.-On the desk is the suitably ruled blank book containing a list-arranged by organizations -of all excused from duty yesterday on account of sick- ness, with the rank, company, and regiment of each. An interrogation point in the appropriate column tells for which men a diagnosis is needed. As the Company Sick- books are brought in, they are compared with the hos- pital list and new names entered below. Care must be taken to get the full name, correctly spelled. This is specially important with the Sick-book for Prisoners; for sergeants of the guard are apt to know the prisoners simply as Brown, Jones, or Johnson, and so enter them in the book. Now, there may be several Browns, Joneses, and Johnsons in the command, and confusion may sometimes deprive a deserving man of a pension, or blot index and register with unseemly erasures. The time to settle doubtful points is now. As the men are called in by the medical officer, record is made of whatever treatment may be directed. Should a new case be one of injury, what the man says was the cause is noted, also the limb or location, whether on the right or left side. These points are difficult to remem- ber for even a short time ; and now that outline cards are prepared for every recruit, the correct location of each new scar is important. Should a case be returned to duty with an interrogation point in the column for diag- nosis, the medical officer should be asked for one now to complete the record Should the man go away without this, the medical officer may forget the case entirely or confound it with some other, and great injustice may be done. In the column for disposition is entered a Q., II., or D., according as each case is marked for quarters, hospital, or duty. Before returning the Company Sick-books to the first sergeants, an entry will be made of the numbers taken sick, returned to duty, or otherwise disposed of, in the proper columns of the Morning Report for Sick and Wounded. Each organization has a line for these en- tries. The sum of those remaining from yesterday and the new cases must equal the sum of those remaining, re- turned to duty, and otherwise disposed of. Footing the columns a like equality must exist between the totals. This double system insures accuracy ; and now is the time to adjust discrepancies. It is humiliating to make errors in a report that is prepared every morning, and awkward to make subsequent corrections. If the post surgeon does not attend the call, the Morning Reports are sent to him for signature, and then to the Adjutant's Office. The steward must be prompt in this, for the sergeant-major compiles a Post Morning Report from these and has many other things to do before guard mounting. Patients taken in Hospital must now be assigned to a ward, put in bed, and given such other treatment as may have been directed ; those marked " quarters'' are, pre- sumably, better able to wait. For convenience of nurs- ing, if there is more than one ward, it is well to place the more serious cases together. Among all men there are social affinities worthy of consideration. Sick "birds of a feather" do better if their gregarious ten- dency is respected. The victims of indiscretion-the men whom common frailties bring to hospital-should usually be gathered into one ward. The influence of example may be remotely beneficial-the mote in our neighbor's eye is frequently a useful guide to our own oc- ular defects. Men with barking coughs or noisy de- lirium must not be allowed to disturb the rest of critical cases of fever or pneumonia-the pay-day penitents are better able to endure this annoyance ; and it may be bet- ter to so accentuate the bitter dregs from pleasure's cup. When the rosy-cheeked music-boy is brought to hos- pital, he will not be sandwiched between the reckless or the depraved ; he will be better near that staid old sergeant whose grizzled hair and furrowed cheek may recall happy memories to cheer him in his loneliness- may inspire him with hope and courage to tide him over the hour of danger. The old man's friendship, now formed, may prove a useful ballast to the youthful bark throughout life's voyage. It is useless and unwise to be an outspoken reformer ; but by attention to such details the steward can silently contribute his mite toward making better men, better soldiers. In a ward containing several helpless patients, to lighten the labor of the nurse and insure increased comfort for the sick, one or two convalescents may be utilized. As a rule the American soldier is cleanly in his habits and does not need a bath upon admission ; in exceptional cases it is for the steward or surgeon to decide. If this duty is delegated to a nurse, sooner or later a case of fainting and death in the bath-tub will bring sorrow. After men come under medical charge the steward is re- sponsible for their condition and should see that they have a full bath once a week, in addition to daily ablu- tions. In all serious cases the directions of the medical officer must first be obtained. Personal attention must be given to the effects that each soldier brings into hospital ; and an inventory en- tered in the register for that purpose. The steward should be able to testify, from personal knowledge, what articles of clothing or other property are brought into the hospital ; for, if the soldier has sold it before, he may claim to have lost it after, admission. Money, watches, and other articles of value must be enclosed in a suitably marked package and given to the post surgeon for stor- age in the hospital safe. If they so desire, patients may retain their money, at their own risk ; but a nurse must never be exposed to the suspicion or temptation of pick- ing the pockets of a drunken or delirious patient. Be- fore leaving the hospital each patient must sign the Reg- ister as an acknowledgment that he has received all of his effects. The Sick in Quarters will now receive their prescribed treatment. This is aiways an unsatisfactory class. The expenditure of medicines is much greater, the results less by far, than for an equal number treated in hospital. The steward can do much toward obviating the diffi- culty. If possible he should see that one dose is swal- lowed at the counter ; he will dispense a quantity just sufficient for the twenty-four hours ; will give directions clearly, both orally and in writing. Salts, salicylates, and many other drugs can be dispensed in powders, to be dissolved, when taken. If a bottle be necessary its return to-morrow will be enjoined ; the contents may be poured on the highway, but the hospital will in this way re- cover a few vials. If only a second dose be required, it is 458 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Hospital Steward. Hospital Steward. generally better to have the man come to the dispensary for it when needed. A stimulant narcotic, like Squibb's mixture, must be dispensed with great caution as to quantity ; a toper may poison himself by taking all at once. Ulcers and abrasions will be dressed occlusively, so that the steward can tell if the dressings have been disturbed when the patient returns to-morrow. He will not improve its condition if he has access to it, and a small ulcer is sometimes considered less inconvenient than a detail with water-wagon or ice-cutting party. As the medicines are dispensed your list must be checked carefully, so that those who do not wait for their treat- ment may be reported to the surgeon. Care not to re- port the wrong man is important. The steward must treat all courteously, and never show signs of suspicion ; to subject a sick man to unjust doubt is cruelty ; to cau- tion a malingerer is to render discovery more difficult. It is well to provide for the lame men last, and watch them depart; the non-commissioned officer has gone, long ago, and some of them may not limp all the way to their quarters. After providing for the last sick man, a second round is made to see that everything is now in readiness for the surgeon's visit. The cook is told how many men are to be fed, and given orders for what he requires. Pre- pared for the post-surgeon's signature will be a list of needed commissary stores. It must be seen that all the men are employed-the morning is the time for work. The temperatures in all febrile cases will be taken and recorded-the surgeon will be sure to ask for them. Before the surgeon's visit there will be time to enter all new cases in the register. The Index must be care- fully searched, and the names not already there be en- tered ; also the new hospital number of each case, and the last previous numbers will be noted on the Register. The age, nationality, previous service of each new addi- tion to the Index will be ascertained. The record of each case returned to duty will be completed at once ; if any point be doubtful, a memorandum for reference to the surgeon when he conies will be prepared. If the register be completed as far as practicable each day, the work at the end of the month will be greatly reduced. Morning Visit of the Post Surgeon. - The steward precedes the surgeon, and, as he enters each ward, calls "Attention!" when each nurse and those patients who are out of bed will rise, and remain standing in a line at the foot of the beds until the officer's departure. Should much time be required in the ward, the surgeon may direct the men to sit down ; then each will rise at the surgeon's approach, and remain standing until the next patient is addressed. The same direction may be given to individuals. The nurse in charge of the ward will follow the surgeon and steward from bed to bed. The steward should verify the number of men in the ward and call attention to absentees. This is better than to have the surgeon call attention to a discrepancy be- tween the Morning Report and the number of cases that he has seen. On a memorandum block is noted the pre- scribed treatment for each case and any operation done by the surgeon ; if an abscess is opened, if a man com- plain of pain or lameness, the anatomical locality is noted ; if a tooth be extracted, a record of which tooth. These seeming trifles frequently have a remote impor- tance ; and the completeness of the record will be a source of gratification to the surgeon and to the steward. Note is made of which cases are to be allowed to leave their beds, to visit the dining-room for meals, to have special diet, to be provided with crutches, etc. These memo- randa will be carefully copied in the proper column, and opposite each man's name, in the blank-book described and illustrated by Table I., p. 457. The prescribed treatment for each case will now be provided. The nurse should apply bandages, poultices, and other dressings, under the immediate supervision of the steward. Neatness, cleanliness, and efficiency must be secured. This may take more time than to do it him- self, but this instruction given is like bread cast upon the waters-it will return as a diminution of labor here- after. All unused vials are taken to the dispensary, (SUPPLEMENT.) carefully washed, and stored .for future use. Corks, once used should be washed and kept in a separate drawer for use with liniments and other external appli- cations. These little economies will prevent a shortage toward the end of the year. A mental inventory of medicines left in the ward will be taken, so that if a pa- tient takes too much or too little, the defect may be dis- covered and corrected promptly. Instruction will be given the cook as to special diets. The Daily Mail now lies on the surgeon's desk ; he will indicate whatever action is to be taken upon each paper. Each communication will be stamped with the date of receipt, and such as have not already received that at- tention will be briefed. Each is numbered to correspond with the records. In the Letters-received Book will be noted the number, source, date, date of receipt, import, and disposition of each communication ; if sent away, cross-reference will be made to the Endorsement-book ; if a reply to a letter sent, make cross-reference to the Letters-sent Book, in which will be noted the number of this reply. If an important letter is not for file in the office, it is safer to copy it in full-a brief may not con- vey the full meaning of the writer. All letters sent must be copied in full in the proper book, and all endorse- ments in the Endorsement-book. The letter-press does not give an official record and can seldom be used to ad- vantage. When bringing letters and endorsements to the surgeon for signature, it is well to also present the Record-book that he may verify and sign the retained copy at the same time, and the books are always ready for an inspector. Careful comparison will insure that all retained copies correspond exactly with the papers forwarded. This little extra work will often save mis- understanding, which ever breeds voluminous corre- spondence. If reports are returned for correction, a spe- cial list of such errors will be a useful supplement to the files of orders and circulars, and a safeguard against stumbling twice on the same stone. A growing list will warn the steward of a flaw in his habits. The mail brings also general orders, circulars, letters of instruction, decisions, etc. These are compared with Army Regulations, the Epitome of Orders and Decisions, the Handbook of the Hospital Corps, or the Drill-book, whichever may be affected, and marginal references made to the new modification, giving the number, date, and source of order. An R for revoked, or an M for modified, will often save the necessity for searching the files. First-Sergeant'8 Call will now summon the steward to the last of his morning duties. He goes himself to the Adjutant's Office and obtains with the Morning Reports a copy of all orders and circulars affecting the Medical Department for entry in the Order-book. The strength of the command is to be entered in the Morning Report of Sick, by the sergeant-major. The causes of any changes in the command will be ascertained, as they are required to furnish explanatory remarks. Dinner is now ready to be served. The steward will look through the dining-room, kitchen, and wards, with an eye for defects. He will ask the seriously ill if there is anything else that they would relish ; such little atten- tions are highly appreciated by invalids and make the days of confinement seem shorter and less irksome. The attendants, also, are cheered by his constant supervision ; that his critical eye approves, is sufficient reward for what would otherwise be deemed thankless drudgery. We have thus far considered duties that come every day with the certainty of each succeeding sun ; others come periodically, at various intervals, and will suffi- ciently occupy the steward's afternoons. Rations are usually drawn on the 10th, 20th, and the last day of each month. At surgeon's call a Ration Re- turn, prepared as far as practicable the preceding even- ing, is completed. The columns for number of men and number of rations are filled in ; the spaces for quantity of each component are left blank. It is speci- fied for whom the rations are drawn : for so many sick in hospital, so many privates of the Hospital Corps ; when a return is made for individuals, they are specified 459 Hospital Steward. Hospital Steward. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. by name and rank. Entered in the column for remarks is a tabular statement of balances due to, or from, each company. If the resultant balance is in favor of, or against, the hospital, the amount is added or subtracted from number of rations. The word Add (or Deduct) will render the matter sufficiently intelligible. This settlement with the companies is a matter for fre- quent dispute ; and the steward will save himself much annoyance if he is careful to be always right. To verify the work, find the sum total of the sick in hospital for all the days covered by the previous return, as shown by the Morning Report ; to this amount, add one ration for each man admitted to hospital after surgeon's call, and before dinner, during that period. To this amount add the present balance due companies, or deduct the present balance due hospital ; and the result should equal the product of the number of men drawn for on the last re- turn, by the number of days. When men are admitted after dinner, it is better to lose a supper and breakfast than to dispute about fractional trifles ; but when a man is fed an entire day, the ration belongs to the hospital and must be insisted upon. This may seem a trifle, too ; but economy in trifles is the secret of successful hospital fund management. A ration so lost but once a week will in a year amount to the subsistence of a man for fifty-two days. Further, if the steward is found careless in this matter, first sergeants may soon find valid excuses for having sick men reach the hospital too late for surgeon's call, to the inconvenience of the medical officer and de- cided loss to the fund. Keep a separate memorandum of these cases, as an account of them does not appear on your Morning Report. Table II. is a convenient form for this : the first column is a list of all organizations with which accounts are kept ; the second column showshow many rations are drawn for men of each at the com- mencement of the period ; a column for each day of the period shows how many men of each are fed. These numbers should be entered every evening, and, when a new return is made, the numbers in hospital that morn- ing are entered and balances computed. Table III. shows the dates included in a return and the total number of rations. The first column is a list of the several components of the ration ; the second shows the number of each to which the hospital is entitled ; the third is the number left in the subsistence department, to be paid for in cash at the end of the month ; the fourth column shows the number of rations .of each component that you desire to draw out ; the fifth, and last, is the cook's column, and tells him the exact quantity of each article that he is to receive. He takes this paper with him when he goes for the rations, and there can be no er- rors of computation. Table IV. is a convenient slip to have on your desk when you make the computations in Table III. It it well to compute quantities by two methods, as a check to possible errors ; or to verify by reversing the process and reducing the determined quantities back to number of ra- tions. (SUPPLEMENT.) Table III. Rations drawn, May 1 to 10, 1896. inclusive. Number 140. Components. Rations. Saved. Drawn. Bulk drawn. Salt pork .... 20 4 16 12 lbs. Bacon 24 8 16 12 lbs. Beef, fresh Soft bread 98 120 14 84 120 105 lbs. Flour 20 20 15 lbs.* Beans C>0 60 9 lbs. Rice 44 14 30 3 lbs. Hominy 20 20 2 lbs. Coffee, green 140 40 100 10 lbs. Sugar 140 140 21 lbs. Soap 140 is 125 5 lbs. Salt 140 15 125 5 lbs. Pepper 140 40 100 X lb. Vinegar 140 15 125 IX gal. Potatoes 112 112 112 lbs. Onions 28 28 28 lbs. * Two ounces of flour is drawn for each ration of soft bread. Table IV. Components. Rations to bulk. Bulk to rations. Quantity, 100 rations. Salt pork Deduct X pounds .. Add 3^ 75 lbs. Bacon Deduct X Add 3i 75 lbs. Canned beef ... Deduct X Add 3^ Fresh beef Add % Deduct ]/B 125 lbs. Salt beef Multiply by 11 and divide by 8. Multiply by 8 and di- vide by 11. 1373^ lbs. Flour Add V Deduct J/y 112X lbs. 112X lbs. Soit bread .... Add Deduct '/a ... Hard bread.... Number of rations is number lbs. Number of lbs. is number of rations. 100 lbs. Corn-meal Add Deduct >/6 125 lbs. Beans ,dd % and divide by 10. Multiply by 10 and deduct 3i. Multiply by 10 and deduct 3i- 15 lbs. Peas Add 3^ and divide bv 10. 15 lbs. Rice Divide by 10 Multiply by 10 10 lbs Hominy Coffee, green... Coffee, roasted. Divide by 10 Divide by 10.... Multiply bv 10 10 lbs. Multiply by 10 10 lbs. Multiply by 8 and di- vide by 100. Annex (K) and divide bv 8. 8 lbs. Tea Multiply by 2 and di- vide by i00. Annex 00 and divide by 2. 2 lbs. Sugai- Add % and divide by 10. Multiply' by 10 and deduct 34. 15 lbs. Vinegar Divide by 100. gal- lons. Multiply by 100 1 gal. Soap Multiply by 4 and di- vide by 100. Annex 00 and divide by- 4. 4 lbs. Salt Multiply by 4 and di vide bv 100. Annex 00 and divide by 4. 4 lbs. Pepper Divide by 400 Multiply bv 400 K lb. Potatoes The same number... The same number... 100 lbs. Onions The same number... The same number... 100 lbs. Candles Add 3^ and divide by 100. Multiply by 100 and deduct 34. lb. Yeast powder.. Multiply by 4 and di- vide by 100. Multiply by 100 and divide by 4. 4 lbs. Ration of U. S. Soldier. Decimal Rule.-Rations to bulk : Multiply by quantity in one hundred rations and point off two decimal places. Bulk to rations: Annex two ciphers and divide by quantity in one hundred rations. Reduce common fractions to decimals and annex additional ciphers to dividend for each decimal place in divisor. Table II. Ration Memoranda. Patients fed, May 1 to 10, 1896, inclusive. The Quantities tobe Saved vary with the character of the cases under treatment, and can only be determined by judgment and experience. A number of cases on low diet, and severe febrile cases subsisting chiefly on hospi- tal stores, will allow a saving of some rations of meat and flour. The allowance of sugar is always required for use. Beans, being a nitrogenous food and supplement- ing the meat ration, for use are preferable to rice-a pure starch ; but, as the money value is greater, it is better to save rice than beans. You will draw enough rice to give variety and supply convalescents from severe illness. Generally, one third of the coffee may be ad- vantageously saved, and the money value invested in other luxuries. Tea can seldom be drawn or saved pro- fitably. The quantities drawn should be, if possible, an even measure or weight, and all fractions computed in the savings ; when the commissary-sergeant guesses at a fractional measure or weight, the hospital is sure to lose. Organization. Drawn. 1. 2. 3. 4- 5. 6. 7. 8. 9. 10. Due Cos. Due Hosp. Band, 9th Cav 19 1 1 1 1 .. 6 Tr. A, 9th Cav.... 40 3 4 2 5 4 3 2 4 3 10 Tr. C, 9th Cav. ... 20 1 3 4 5 5 4 3 3 2 10 Bat. A. 5th Art.... 1 1 1 2 2 1 1 1 1 11 Co. 1), 8th Inf io 2 2 2 2 1 1 1 1 2 2 6 Co. G. 8th Inf 20 3 3 4 5 4 1 1 1 1 2 5 Ord. Sergt 10 1 1 1 1 6 Ind. Scouts... 10 1 1 1 1 1 5 Casuals 20 2 2 1 1 1 11* Totals .. 38 32 Due U. S. for two men three days + 6 Deduct from next return 12 44 44 * Due U. S., one transferred, one discharged. + Field rations issued. 460 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Hospital Steward. Hospital Steward. Where the fund is small, enough must be saved on each return to cover all purchases that it may be desira- ble to make during the ten days, to avoid indebtedness ; otherwise, it is more convenient to draw all but frac- tional quantities on the first two returns of the month and make up the savings on the last. There should be a balance left over in the kitchen ; if the cook thinks his quantities are for an exact ten days, he will not estimate the amounts required for each day, but will use one- tenth of the whole-with consequent waste. Purchases from the Hospital Fund, under the super- vision of the post-surgeon, will always be the steward's especial province-a duty that he can never delegate to an assistant. This is a subject of very complex bearings, about which a volume might be written. To expend the money received for unconsumed rations would be simple enough ; to do so judiciously, to the best advantage, will deserve his life-long study and prove a subject about which he can learn something until the last day of his service. He must constantly consider the nutritive, the economic, and the commercial values of the various ar- ticles of diet, the habits and tastes of the men, the skill of the cook in the various methods of preparation, and the class of diseases under his charge. The aim of any system of dietary is to supply in due proportion all the elements required by the human body under the conditions in which it is placed. The bulk consumed will be such as to secure a sufficiency of pro- portionately deficient elements. The sense of satiety comes with such a distention of the stomach as expe- rience with the accustomed diet has shown to be neces- sary for that purpose. The surest and most economical method of securing all elements in due proportion is to give variety to the daily fare. The cook who provides but one dish for each meal will prove expensive and un- satisfactory. The Esquimau consumes an astonishing amount of blubber, not so much because the climate re- quires a large proportion of fat-of which he consumes a great excess-as because such a quantity is necessary to secure a sufficiency of elements proportionately defi- cient in such a diet. This lack of variety also explains the voracity of the American Indian. On our Mexican border, where the costume favors such observations, the protuberant abdomens of the little Mexicans is a subject for frequent remark ; to a physiologist this tells a tale of a long-continued monotonous diet of jerked beef and tortillas. The farmer's boy reared on a diet of salted meats, robbed of many of their nutritive elements by the brine, when he enters the army, astonishes by his gluttony the old soldiers accustomed to a diet of fresh meat, and grumbles at the insufficiency of the soldier's ration. It is well to give such recruits a proper sense of fulness by a liberal supply of cheap and bulky articles of low nutri- tive value, as potatoes, cabbage, fruit, etc. To freely supply such men with a concentrated diet is to make them ill. The excessive percentage of sickness among recruits is largely due to cloying the system with an ex- cess of nutritive elements ; and confinement to bed on light diet is curative of many ills. With such cases it is important to know that additional food is not smuggled into the ward byi njudicious friends. In diet as in other things, a few months will convert the recruit into a sol- dier. A captain told me of a man whose appetite ex- cited general remark. A non-commissioned officer was detailed to observe and record the amounts consumed, with a view to making application for the man's dis- charge from the service. He ate forty ounces of bread daily, and other things in proportion, for a fortnight ; then his appetite rapidly diminished until he ate no more than other men. The captain thought that the man discovered that he was being watched, or that a sense of incongruity aroused his self-denial; but a more probable explanation is, that his system became cloyed by excess, and that his stomach finally adjusted itself to the unac- customed richness of a soldier's fare. Purchases should be made with a view to present vari- ety, and to effecting a saving of some component of the ration from which future purchases can be made. (SUPPLEMENT Fresh Pork, at the contract price of beef, will give pleasing variety and prove an economy during the cold season, when it can be kept. The cook will render the lard and save all unconsumed grease for culinary use, so saving an otherwise necessary purchase from the com- missary. Turkeys, Chickens, and Oysters, bought for invalids or holiday dinners, often prove surprisingly economical in- vestments. Much depends upon the market price, but the small percentage of bone, as compared with beef, must also be considered. Kyys have a high nutritive value, but lack the bulk re- quired to give a sense of satiety. Served in unlimited quantity, they seldom prove an economy. On toast, or in cake or custard, an egg will be highly relished, give pleasing variety, and allow of a certain saving of meat. But bulky food must be served at the same meal. Milk is an ideal food, containing all the elements neces- sary to maintain life. An animal food, it will take the place of a part of the meat ration. When supplied freely it should be served with bread, oat- or corn-meal mush, or other coarse diluent, as its undigested residue is so small that troublesome constipation will result from long- continued use by itself. Except as a flavoring for coffee, occasional use in puddings and custards, and as special diet for invalids, the hospital fund will seldom jus- tify the purchase of milk. Aside from adulterations, its market price generally exceeds its nutritive and economic value ; the milkman must be paid for his life of drudg- ery, for the use of his horse, cart, and bell. Where there is sufficient fund to pay for her, a good cow is probably the best investment that can be made from the hospital fund. The attendant who does the outside po- licing will not feel the additional work ; the kitchen waste will supply a large part of her food ; and an un- stinted supply of milk will reduce the demand for vari- ous components of the ration and cut off an otherwise necessary monthly milk bill of five or ten dollars. Where more than twenty men are fed, a second cow will be advantageous. Butter is a judicious investment if the price is not more than three or four times that of beef. Where fresh beef is the chief part of the meat ration consumed, there is apt to be a deficiency of animal fats, and butter is a use- ful and highly relished addition to the soldier's fare. There is less demand for it when fresh pork and gravies are served. It is not essential, and may be omitted when a reduction of expenditure is required. Care is neces- sary to secure it of constantly good quality. Cheese is a food whose nutritive value constantly ex- ceeds its market price. A concentrated food, its econo- mic value is impaired by its deficient bulk. If served in unlimited quantity, the excess taken to produce accus- tomed distention of the stomach will speedily induce di- gestive derangements ; but a daily allowance of two or three ounces for each man will prove a useful and grate- ful substitute for a part of the meat ration. Fresh, Fish, when attainable, make a useful variation in the bill of fare ; but money paid for transportation does not help to nourish the soldier. Salted fish are of but little use except to satisfy the longings of a petulant invalid. When fish are served at all, let it be on Fridays, to show a proper deference to the religious feeling of some of the men. Oatmeal, Cracked Wheat, and Hominy may often be ad- vantageously substituted for a part of the flour ration. Vigilance is required to insure that they are always thoroughly cooked. Sirup is always a cheap and useful luxury, relished by all. ■ Fruits are a valuable addition to the dietary, where we pay for fruit only, and not for long transportation. At many stations, desiccated fruits and canned tomatoes are the only resource. The vegetable acids fill a useful role in the processes of assimilation ; and their only repre- sentative in the soldier's ration is vinegar, of which the allowance, though small, is rarely consumed. Beans and boiled pork are the only components of the ration that are rendered more palatable by the addition of vine- 461 Hospital Steward. Hospital Steward. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. gar ; hence, as incentives to an increased consumption of a vegetable acid, such products from the garden as pickled onions, cabbage, and tomatoes assume in the dietary an importance far in excess of their trifling nu- tritive elements. The commissary substitutes are be- yond our means, as we can ill afford to pay for glass, long transportation, and insurance to middlemen against breakage. Oranges, lemons, grapes, and the more ex- pensive canned fruits can be served only as special diet for invalids. Salt and Pepper, as condiments, require passing notice. Salt, being a constituent of every fluid and tissue of the body, except the dental enamel, is a very important nutritive element ; but it is naturally present in every article of food, and in drinking-water. Its culinary use to render food more palatable, is generally in excess of the requirements of the system ; and in such excess it must be considered as a condiment. The failing of nearly all cooks is to use these articles in excessive quantity. Salt and pepper must always be within reach, that each man may flavor his food to his taste ; and the cook should be instructed to limit his seasoning to a minimum requirement. We would not compel a horse to take more salt than he wants by mixing it with his oats ; and man is deserving of equal consideration. These are a few general landmarks given to guide the steward in hospital fund management. lie will add to and modify them as experience dictates. Curious fluctuations, beyond explanation, will be observed ; in some months there will be large savings ; in others, under apparently similar conditions, it will be difficult to avoid a deficiency. To provide for these refractory variations is an important function of a hospital fund. It is well to keep the expenditures well below the sav- ings, accumulating a few dollars each month, until there is a constant balance on hand proportionate to the size of the post. Thirty or forty dollars is enough at a sta- tion of one or two companies ; a hundred and fifty or two hundred is not too large an amount for a regimental post. Until there has been accumulated such a fund, there will be constant trouble " to make both ends meet," and the hospital mess will be of the plainest. With a suit- able reserve we can indulge in various luxuries ; a short- age of ten or fifteen dolFars in one month, which may readily be made up in the next, will be of little im- portance. Expenditure for games, reading matter, etc., will then be proper ; but, to give variety to the soldier's fare, is always the main object of a hospital fund. With constant attention the steward will improve his methods from year to year ; the ultimate possibilities of hospital fund management have never yet been at- tained. The steward of a lake steamer, whose table was laden with every luxury of the season, told me that the average daily cost to feed a passenger was nineteen cents. Near the end of the month every item of receipts and expenditures is entered in the record of the hos- pital fund, and in an exact copy to be sent away. A careful steward will compare the two, item by item, and go over the computations again to know that they are correct, before he presents them for the surgeon's signature. We cannot rely upon the commissary ser- geant's accuracy ; all are fallible, and he has much to do. Fuel, Mineral Oil, Forage, etc., are obtained by re- quisition, sent to the adjutant's office on the last day of each month. The authorized number of fires and lights are required for, care being taken to ask for enough ; the quartermaster takes up unconsumed balances ; but should a change of weather necessitate more fires than have been estimated for, he cannot supply the fuel. The supply of these things is liberal, and it is our duty to guard against waste or misappropriation. We can compute the aggregate capacity of all lamps in use, they are filled but once a day, and a lamp rarely fails for lack of oil, and oil must not be used for kindling fires. When the daily expenditure of oil approaches the total capacity of the lamps, it is time for increased vigilance. Man is largely a creature of circumstance, and it is well to let all feel that the steward's supervision extends over everything about the hospital. (SUPPLEMENT.) Where a large civilian population is unprovided with the means of obtaining fuel, the wood and coal bins will be subject to nocturnal visits. Gates will be left open, scattered coal will derange the policing, and in many other ways these visits are objectionable. All that can be done is to render access to the fuel as difficult as possible, with a hope that such visitors may go else- where, like electricity, choosing the course of least resist- ance. The Monthly Report of Sick and Wounded is a record of completed cases, arranged to accord with the hospital numbers. As each case is returned to duty, or other- wise disposed of, its record in the register is completed, but the monthly report cannot be begun before the encl of the month, unless all back numbers are complete. There is no trouble with cases admitted during the month, but without great care, some of the cases scat- tered through the records of preceding months will be skipped, ami the sequence of the hospital numbers will be broken. To avoid this, at the end of each month prepare a memorandum slip of all remaining cases ; verify this with the numerical summary, and check off each number as the cases are completed. When all are checked off, the monthly report can be begun, and the record be brought down to the oldest remaining case, which will sometimes greatly reduce the work at the end of the month. Changes in the command will be noted, and the re- quired data concerning births, marriages, and deaths, be obtained as they occur. A careful record of the data given will relieve the steward from responsibility for future trouble about personal identification, legitimacy, and other points that may be raised by the Bureau of Pensions. Muster- and Pay-rolls have sufficiently explicit printed directions. As is true of other papers, accuracy, legi- bility, and completeness are qualities which are essential to them. They cannot be prepared long beforehand, as changes may occur at the last moment. At the end of each alternate month, when no muster-roll is sent to the adjutant-general, a report of strength and changes in the command must be forwarded. The Report of Examination of Recruits can be kept up with the record, of which it is an exact copy, and need not consume time at the end of the month. That a recruit is not " accepted " when he has passed the medi- cal examination, but must be actually sworn into the service, is to be remembered. The Report of Personnel, the Sanitary Report, and the Personal Reports of Medical Officers, complete the list of monthly papers. Returns of Ordnance Property, of Quartermaster's Stores, and of Clothing and Equipage are made quarterly. In military departments where an extra copy is required by department orders, a memorandum of such orders should be found in the hospital steward's digest of current or- ders and decisions. The Annual Return of Medical and Hospital Property is made at the close of each calendar year, and whenever a medical officer is relieved from responsibility. When this return has been examined and found correct in the office of the Surgeon-General, notice is sent to the officer interested. The receipt of this notification marks the time to begin one copy of a new Return. The quan- tities " on hand to be accounted for " can now be entered on the first line. Should the receipt of new articles dur- ing the preceding year have deranged the alphabetical arrangement-or classification-now is the time to make adjustment. Blank columns are left after each class for such new articles as may be received during the year. When invoices are received the amounts are entered at once in the proper columns ; the same is done under expenditures for property sent away, inspected and con- demned, or otherwise disposed of. We shall thus have at hand a complete statement of accountability, and be ready at all times to prepare correct invoices. Should a change of station or other cause necessitate a transfer of property accountability, an intelligent inventory, general or par- tial, can also be taken with accurate knowledge of what 462 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Hospital Steward. Hospital Steward. (SUPPLEMENT.) ought to be found. That an article will be speedily missed, is a safeguard against loss. Care of Property.-Upon taking charge of a hospi- tal the steward's first duty is to ascertain what there is in it to be accounted for, and the location and condition of each article. Before beginning his inventory he must remember that there are eight classes of property to be considered, and he should obtain from his predecessor the retained returns and subsequent invoices, showing what must be found. 1st. The post quartermaster issues stoves, pipe, lamps, bunks, and many other articles upon a memorandum receipt, of which the steward should possess a copy. The steward must go over this property carefully, that he may recognize the various articles and not confuse them with property of some other class-so counting the same article twice. For example, the galvanized iron bucket is stamped U. S., and a similar bucket, stamped M. D., is carried on the return of medical and hospital property. If we find a surplus of the one, we are likely to find the others deficient ; used for kitchen waste, fatigue parties exchange them, and the shortage is of medical and hospital buckets. Once wrong, it is very difficult to straighten the matter. 2d. There is the return of quartermaster's stores- ambulances, harness, water-kegs, and other equipments, which it is very important to see in their proper places. 3d. There is a return of clothing and equipage, of which all articles of bedding should be found, separate and distinct from similar articles of medical and hospital property. 4th. The return of ordnance property. 5th. Certain books may be carried on the muster-rolls and also on the return of medical and hospital property, so that the steward must find duplicate copies. 6th. The return of durable property purchased with the hospital fund. 7th. The annual return of medical and hospital prop- erty. 8th. The return of record books. Of these the older ones have become ancient history and are liable to be stored in out-of-the-way places ; the assistance of his predecessor may be required to find them, and he may save himself hours of fruitless search if he finds them now. In taking the inventory it must be seen that every article is on hand ; and any excess of articles not expend- able carefully noted with the amount. Such excess is always a subject for suspicion, and may prove as trouble- some as a shortage ; it implies a blunder somewhere whose shade may arise again quite unexpectedly. An officer, in taking an inventory, found a surplus of several sets of tent-poles. Being a careful man, he took them upon his next return, "from source unknown." Sev- eral years after, he received official notice that a lieu- tenant claimed to have issued him this number of tents and poles, and, through error, to have omitted the poles from his invoices. The officer invited attention to his return for such a quarter of such a year on which these poles had been taken up and duly accounted for. Had he neglected this unaccountable surplus, the poles would have been worn out and thrown away, and he would now have found himself accountable for property that he no longer possessed. It is the duty of the steward to know, at all times, where every article is to be found. To do this his memory must be aided by a systematic arrangement. Of the articles in actual use, lists must be made for each division of the hospital-office, library, dispensary, wards, kitchen, and dining-room. The attendant in charge of each must be furnished with a duplicate list, and warned that he must report promptly any missing articles, with the circumstances of their disappearance, to avoid re- sponsibility for the loss. Each soldier is charged with his accoutrements, which are verified at inspections and must be turned in before he receives his discharge. Of property not in use, each class should be stored by itself ; and the articles, as far as practicable, arranged in the order in which they are borne on the returns. This will greatly facilitate the taking of inventories, and pre- vent loss of time in searching for any article when wanted. There will be noted in a memorandum-book the trans- fer of articles from one place to another. From this can be determined the rate of expenditure of medicines and stores from the dispensary and kitchen ; and can be traced unreturned appliances used in the treatment of cases outside the hospital. Attendants can be held responsible for the condition of articles in actual use under their charge ; but the prop- erty kept in the store-rooms requires the steward's con- stant and particular attention. Blankets and other woollen articles must be secured from moths by tarred paper, marine lint, or other device. Hospital stores must be guarded from the inroads of mice. Wooden articles, buckets, wash-tubs, etc., will become rickety in dry store-rooms and require to have hoops tightened, or to be soaked in water. Water may be left in the kegs during the summer, but they must be carefully emptied before there is danger from frost. If harness is hung in a basement near steam-pipes, the leather will become hard and lose its pliability ; if hung in the same basement without artificial heat, dampness may provoke the growth of mould. If the pack-saddle is not secured in tarred pa- per, the woollen pad must be protected from moths by fre- quent beating and exposure to air and sunlight. Garden tools must be carefully housed, and, after their season of use has passed, cleaned, oiled, and secured in a suit- able store-room. The empty barrels will be needed again for sauer-kraut and pickles, and must not be al- lowed to fall down for lack of attention. In careful housekeeping eternal vigilance is a useful watchword. The Ward is, to the hospital, the vital centre, the source of being ; all other parts are but accessories to its welfare ; and we may well study the conditions that pro- mote its usefulness. Upon the occurrence of sickness and death the savage moves his camp. This blind following of superstitious ignorance, or traditional experience, approximates in re- sults the most advanced sanitary philosophy. But in the ward there can be no change of camp ; suppurating wounds, gangrenous frost-bites, foul ulcers, erysipelas, consumption, pneumonia, infectious fevers, etc., form a continuous pathological chain of which some links are ever present; with modern knowledge of disease-produc- ing germs, the illustrated annals of a ward would appal the stoutest-hearted patient, and attendants might indeed shrink from the performance of their duties. On the contrary, experience teaches that there is less danger in the ward of an army hospital than in the ordinary walks of life. A man with small-pox lands on a wharf and proceeds up a street, stopping here for drink, there for food, and again for rest; in a fortnight, a trail of yellow flags will mark his line of march, and those who came in contact with him on the street will furnish other victims. A man with high fever is admitted to a ward full of pa- tients. On the third or fourth day a small-pox eruption appears, and he is then carried, with his bed and belong- ings, to an isolation ward or tent. Of the patients and attendants in that ward the probability is that not one will have small-pox. If one man does contract the dis- ease, it will be the attendant who came in contact with the patient upon admission and handled his clothes. The same is true of other infectious diseases. When typhoid fever appears in a house, several of the inmates contract the disease ; in a ward, the man with a broken leg is in no danger from the case of typhoid fever in an adjacent bed. Rarely will a patient contract another disease while con- fined to a bed in the ward. Convalescents, who are per- mitted to walk about, are in greater danger from the other inmates, but even they are more likely to have con- tracted the new complaint during surreptitious absence. When apparent exceptions occur, careful inquiry will generally elicit the fact that the germ of the second dis- ease was received before admission ; a man with two dis- eases may only complain of the one that causes him the greater inconvenience. 463 Hospital Steward. Hospital Steward. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. We must not depend upon fortunate accidents; we must study the conditions that give the ward its freedom from contagion-its salubrity-that we may not interrupt them by injudicious interference ; that we may approxi- mate them in other buildings, used temporarily as hospi- tals ; that we may maintain the efficiency of the hospital corps by guarding its members, as far as possible, from contagion. A hospital ward is a parallelogram of floor space 25 feet wide, whose length is determined by the number of beds that it is to contain. The beds are placed with the heads to the lateral walls. There is a window in each alternate interval between them. Commencing in a cor- ner, we have a bed, a window, a bed, a space. Allow- ing 4 feet for each bed and each interval, 16 feet is the unit of length providing for two beds on a side. This unit may be repeated as often as desired ; generally, for economy and convenience of administration, it is re- peated three times, and, as the unit terminates with a space, an additional 4 feet is added for a seventh bed, and the last space provided with a window on one side, and, on the other, a door opening into the lavatory. This gives for each bed nearly 93 feet of floor-space and more than 1,000 cubic feet of air-space, with a ceiling 12 feet from the floor. With ordinary percentages of dis- ease and accident this is satisfactory ; in epidemics of infectious disease, without extreme care of the ventila- tion, such a ward will be overcrowded. Under all cir- cumstances the corner beds are undesirable and should be assigned to sprains, bruises, and other slight ailments. The ventilation of a ward should be entirely indepen- dent of doors and windows. In the centre of the ceil- ing an open shaft of 2| feet in width, and 15 feet in length, should extend to a ridge ventilator. Twelve feet from each end of the ward, an opening of one square foot should be cut in the centre line of the floor, to communi- cate with an air-shaft extending across the building and opening at both ends outside. These shafts should have a sectional area of 16 by 16 inches, as the ends must be somewhat obstructed by wire netting to exclude small animals that might hide in the shaft to await death. Care must be exercised that the outer openings be not ob- structed by snow or rubbish, and that the ground in their vicinity be kept scrupulously clean. No slop-barrels, cesspools, or sewer openings can be tolerated in their neighborhood. In malarial regions the areas near fresh- air inlets should be covered by an unbroken turf. Pro- vision may be made for closing the windward end of these air-shafts, as rapidly moving air carries dust, bad odors, filth, and morbific germs for great distances ; and it is safer and more pleasant to get the fresh air from the lee side of the building. This arrangement for closing the ends of the air-shaft is preferable to a closing flue in the floor opening which cuts off the supply of fresh air altogether. If the ward be warmed by stoves, they will be placed ovei' the fresh-air inlets, and the pipes be carried out through the centre of the ventilating shaft. One stove cannot be so located as to satisfactorily warm a ward 52 feet long ; the required heat will render adja- cent beds untenable, while remote parts of the room are still cold ; further, only the radiant heat can be utilized from a stove placed in the centre of the room, as air warmed by contact will pass directly up the ventilating shaft. The stoves and pipe should present a heating sur- face sufficient to warm the room in all seasons without the fires being forced. No approach to redness should ever be tolerated in a ward stove. We will now consider the practical isolation of each patient in the ward. Disease germs may be communi- cated by contact, by food or drink contaminated by uten- sils used in common, and by floating particles of dust or moisture in the atmosphere drawn into the air-passages by inspiration. Direct contact between patients need never occur. An attendant's duties expose him to some danger which can be minimized by trifling precautions. The clothing of each new patient should be removed from the ware! at once, aired and dried if necessary, and then placed in a tight locker. If this is done in all cases, the unrecog- (SUPPLEMENT.) nized infective case will seldom cause trouble. Each patient has his own bedside table, medicine glass, spoon, etc.; his food is brought to him separately, and the soiled dishes are disinfected by boiling water in the kitchen. This obviates sources of infection more common than is generally supposed. I would not eat or drink in a house containing small-pox or diphtheria, and yet 1 attend such cases without anxiety. A cup of tea flavored with kero- sene, and other similar observations, lead me to doubt the effective cleanliness of apparently well - regulated households, and suggest how germs may travel beyond the hangings saturated with antiseptics. A drunken man besmears the sheets, or a patient uses a close stool or bed-pan in the ward without inconven- iencing his neighbors. There is no need for the burnt sugar whose odor is so unpleasantly suggestive of poor ventilation in the sick-room of many a mansion. The reason is, that the heads of the patients are next the out- side walls, and that all air-currents are toward the centre of the room, and upward toward the ventilating shaft. The man with the broken leg will wish to smoke in bed. Watch the course of the curling wreaths as they disap- pear ; by them the air-currents are rendered visible. No stagnant strata lie above his head ; no smoke crosses the interval to the next bed until it has risen high above it. If some smoke drifts against a cold window-pane, it grows heavy and falls directly to the floor-showing why it is not well to place a patient's head opposite a window, for all foul air takes the same course. This also illus- trates the advantages in winter of double sash with a dead-air space between, and teaches us to provide for ventilation elsewhere. You will also see why longtitudi- nal draughts are injurious, deranging the normal air-cur- rents and carrying foul air across the beds. In summer, open opposite windows that the stream of air may pass between the beds and tend to draw impure air from the beds toward its centre. A ray of sunlight through a shutter illuminates float- ing particles in the air ; these are the omnipresent dust. The sailor in mid-ocean sweeps his deck and wonders whence it comes. There is danger in it-morbific germs may ride upon those little particles. We cannot exclude it from the ward ; we can only change our dust as we do our air, by ventilation-judging that from the outside world to be less dangerous. The humble piece of soap, in the society of the rose, partook somewhat of its perfume ; so dust, allowed a long sojourn in award, will acquire mor- bific qualities. Daily sweeping and dusting is a wise sanitary precaution. The direction of normal air-cur- rents will be the guide for the sweeper-everything to- ward the centre is an invariable rule. The proceeds should be gathered on a dust-pan and consigned to the fire. To attempt to sweep through an open doorway, with the possibility that a gust of wind may scatter the dust over the beds, should be a punishable offence. There being but little travel through a ward, and all ac- cidental litter being removed at once, but little dust will be raised at each sweeping ; but a half-hour later, every projecting shelf, window-sill, casing, and cornice, to- gether with the furniture of the room, must be gone over with a moist cloth. The bed-linen is changed as soon as soiled, and at the departure of each patient; if there be a suspicion of con- tagion, it should be soaked in an antiseptic solution and dried before being sent to the matron. In all infec- tious cases the mattress, pillows, and blankets must be thoroughly fumigated ; the surgeon will decide if destruc- tion be necessary. Whenever a bed is vacant, the bed- ding should be exposed to air and sunshine. This will avoid the necessity for a complete change of outfit periodically. At times of little sickness patients may be so consolidated as to leave a ward vacant, which can then be fumigated and put in perfect condition. If such a ward can be allowed to lie fallow for a few days, this will make a desirable break in its pathological chain. Surgical Operations bring important duties to the stew- ard. The surgeon will select his instruments and give directions for antiseptics and dressings for each case; but the steward should be familiar with the general prin- 464 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Hospital Steward. Hospital Steward. ciples underlying aseptic surgery, for his ignorance or inattention may nullify the most consummate surgical skill. To take antiseptic gauze from its hermetically sealed package, unroll it on a dusty counter, cut it with rusty old shears hanging in the dispensary for general use, and turn it over to the unwashed hands of a nurse for consignment to the first bedside table that he conies to, is a combination of errors too frequently excelled. After every operation, however trivial, the instruments must be washed, dried, placed in a covered tray, and, after twenty-four hours, rubbed carefully with chamois leather ; then, and not till then, can they be safely re- turned to the cases. The seams of a leather pocket-case may retain the germs of erysipelas while the ward is re- floored, re-ceiled, and re-painted-in vain. The Dying and the Dead will also claim the steward's consideration. The greatest tact and judgment must be used with the dangerously ill. We must not destroy the last chance of recovery by depriving the patient of hope ; but the steward can lead him to think of the general un- certainty of life, and to confide to him the names and addresses of friends whom he would wish to have in- formed, should his case prove unfortunate. We must note his expressed wishes and parting messages carefully -the words may have a meaning for friends which we cannot understand. Should the patient ask to see a friend or a clergyman, a messenger must be provided promptly. These wishes may have an importance that you cannot appreciate. You cannot put yourself in his place, and the bitterness of helpless disappointment may be more cruel than his physical sufferings. There is a sharp distinction between the friends that the patient asks to see, and those friends who ask to see the patient ; the latter may well be referred to the surgeon in charge. Upon the occurrence of death, carefully, tenderly, reverently, but promptly, let the body be removed to the dead-room. The steward need not assume the solemn airs of a professional undertaker ; but, if he considers the grief, the hushed awe, possibly the terror, of the other patients, his procedure will be marked by due de- corum. The effects of the deceased will be collected and stored for safe delivery to his company commander. The post surgeon will be notified immediately, and a messenger sent to the first sergeant of the company to which the deceased belonged. The blank forms in the register of deaths and interments will be prepared for signature. There can be obtained through his first ser- geant such required data as are not already at hand. After such an examination of the body as the surgeon may desire to make, it will be prepared for burial. After such preparation an attendant will await the visits of all who may desire to view the remains. We cannot exclude the idly curious, for the ties of a common humanity ex- tend beyond our ken. We may not appreciate the im- portance of a parting caress, a kiss, a little prayer ; but we must respect these as some of the mysteries of life. Post-mortem Examinations.-The steward must know that all instruments are clean ; must provide a bottle of olive-oil, buckets, sponges, etc. ; must have the needles threaded beforehand, and see that their points are sharp. We cannot have the entire detachment pres- ent, but by rotation we can gradually disseminate some knowledge of human anatomy throughout the corps. Some of our men will turn faint and sick ; we will send such into the fresh air and encourage them to try again. It is a matter of education, and preparation here will ren- der them useful in operations on the living body. At the end of the examination, it will be the steward's duty to replace the various organs and close up the incisions. Let him aim at neatness and dexterity in the use of the needle, and accuracy and efficiency in the adjustment of parts. These accomplishments may be of use in repair- ing rents in living flesh. When all is done, clean all the instruments as carefully-more carefully than you do those after a surgical operation. There is something in the dead human body which causes a fatal poisoning, if, even in the smallest quantity, it is inoculated into that of the living. The slightest crack or abrasion of the skin may receive and absorb this fatal by-product of mortal- (SUPPLEMENT.) ity. Before beginning a post-mortem examination the hands are protected by saturating the pores of the skin with oil, which can be saponified and washed away at its close, bearing away with it all other foreign matter. All bodies are not equally dangerous ; those are more so in which the processes of putrefaction have begun. Ery- sipelas, gangrene, and other diseases in which putrefac- tive changes, in effusions or tissues, may begin before death, have long been known to furnish the most dan- gerous bodies. In a perfectly fresh cadaver there is lit- tle or no danger. Cannibals, with all their experience, seem to have remained ignorant of this peculiar quality in dead human bodies. The putrefying corpse of one enemy would have poisoned the arrows of a tribe, and yet, among the arrow poisons, this one seems to have been overlooked. Bearing in mind that this poison is a product of putrefaction, you will know that there is but little danger from a scratch received in an examination made soon after death ; but you will understand that if you leave in the indentations of a knife handle, in the joint of the blade, or in the eye of a needle, particles of human flesh or oil, to putrefy in the cases, those instru- ments will be very dangerous when used again. If you are careful to clean your instruments immediately after use, I believe that those frightful cases of blood-poison- ing will forever remain things that we read about but never see. Buckets, large sponges, in fact everything used in the post-mortem room must be carefully cleaned and put away for future use, care being taken to so plainly label them that neither you nor your successors may ever unwittingly use them for other purposes. The Hospital Steward's Assistants.-This article is written to little purpose if its perusal does not con- vince all of the importance of having capable, willing men to assist the steward in the hospital work. He must appreciate the advantages of thoroughly understanding the members of the hospital corps; of knowing their capabilities and their defects; and of seeking the best methods for their training and management. It is the poor workman who grumbles at his tools-the best of steel has flaws; with even poor tools much useful work is wrought by skilful hands. Inferior tools require a careful consideration of their defects, and more constant care to keep them in serviceable condition. The study of defects is not a pleasant occupation ; to render it an improving one, it must be pursued with a philosophic spirit. We unravel the intricacies of foul ulcers, of loathsome diseases, that we may the more intelligently apply remedial measures, and we find a sweetness in success to soften the harshness, to assuage the bitterness of our preliminary studies. Of twelve carefully chosen apostles, one betrayed his Master, one denied Him, and one converted " Doubting Thomas" into a proverb. With every precaution, we cannot hope to improve that percentage among the mem- bers of the hospital corps. The men must be young, must have served a year in a company, and must volun- tarily ask for transfer. Their pay is now greater, but their duties, if not so severe, are more continuous and irksome, their chances for advancement are but little better than they were in the line. To study the motive for this transfer is to gain an important insight into their character. A little more than a year ago the young man was dissatisfied with his prospects and surroundings in civil life ; seeking novelty, he enlisted ; after a year in the company he feels that his world still lacks in bright- ness ; fancies that the Vale of Perpetual Content is just over the next divide, and he is transferred to the hospital corps. It is not surprising that such men become rest- less and discontented. This longing for change will pur- sue them wherever they go. No other class of men in the army will furnish an equal percentage of applications -for change of station to go anywhere-for transfer back to the line-for discharge. To a student of humanity there is a pathos in these appeals. There is much in their duties to aggravate this spirit of unrest. In a detachment of eight men, two in the kitchen will begin their duties long before Reveille, and the preparation of three daily meals, with the necessary 465 Hospital Steward. Hospital Steward. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) dish-washing and cleaning-up, will keep them engaged until Retreat; two [one for each] must be constantly present, day and night, in the wards ; one must attend to the office, dispensary, halls, and dormitory, and be ready to act as messenger if required ; one attends to the out- side police, keeps the ambulances and harness in order, milks the cow, and makes the garden. Six of our eight men are constantly employed ; week days and Sundays the hospital work goes on. Change our men about as we will, the tours of duty are long, the intervals of relaxa- tion, of freedom, are brief. Then this freedom is not absolute ; the steward must know at all times where the men can be found. Accidents and emergencies are our especial province ; and we must be prepared to give im- mediate assistance. There is another restraint more irksome and continu- ous. The hospital is a place of sickness and suffering ; patients must not be disturbed by noise. There can be no unseemly laughter, no merry jests, no rough and boisterous play, to smooth the sharp angles of life. No barrack-room ballad can originate or be repeated in the dormitory of an army hospital-the only day-room for the men off duty. The air of solemn decorum that hangs about the building is not conducive to cheerful gayety among the men. This picture is not drawn to discourage. If the shad- ows are tinted too deeply, it is to more certainly fix the attention ; if the obstacles are drawn in too rugged an outline, it is that the steward may so form his estimates as to surmount them the more certainly. The hospital corps is a still recent organization. Difficulties will con- tinue to be remedied by legislation and orders as the con- ditions are recognized, and the means of correction fixed upon. A discussion now of many of them would neces- sarily be ephemeral ; but certain general principles un- derlie all and will be true through all variations. These are worth careful consideration. First in importance is the fact that the poorest man in the detachment is better for our purposes than the most promising recruit that comes to the post. There is some- thing in that year of military discipline and training that improves the man ; we must continue the good work. If the man does not go forward, he will slide backward ; we must exact a continuance of those habits of order, of regularity, of prompt obedience. The polish of a shoe, the brightness of a button, have a direct bearing upon the welfare of the sick. Teach your men to be systematic -even in their vices; for regulation is a species of re- straint, a step in the right direction. The steward's ex- ample is worth more than his precept. If he walks in the straight path, his men will follow him by instinct and without complaint; if he makes them his accom- plices in trifling peccadilloes, he will lose a standing that he may never regain. Let the men be taught to regard regulations as they do the processes of Nature-which rains alike upon the just and the unjust. The rigid let- ter of the law does not abrogate the necessity for judg- ment and discretion. When a man returns from pass drunk and disorderly, consider that drunkenness, in it- self, is a failing and not a crime ; consider that the resto- ration of this man to the duties which others are now performing is our main object. Order him to his bed in the dormitory ; when he has slept off his inebriation, he will be as useful as ever. Do not waste words in argu- ment or reproof. If the man awakes in the guard-house, let him understand that this humiliation is not because of his drunkenness, but because he did not retain sufficient sense to comply with an order that was intended to shield him from trouble. Exclude all personality from this ex- ercise of your authority. Aim to do these things as im- passively as you wind the clock. In the maintenance of discipline, "In essentials, unity, in non-essentials, lib- erty, in all things charity," is a motto that we may well borrow from the Church. For privates of the hospital corps much can be done to lighten the labor, to lengthen the intervals for recrea- tion. The acting hospital steward has charge of the wards and does the dispensary work. After the morn- ing work is done, he has little to do except to be on hand to put up occasional prescriptions. He will try to while away this leisure time by reading, and possibly by smok- ing. If left to himself, this sedentary life will have one of two effects : he will grow dyspeptic, morose, and ir- ritable, or he will become apathetic and lazy. This loss of energy will be so gradual that the steward may not notice it until he is greatly annoyed by the man's inat- tention to details entrusted to him ; and he injudiciously administers a sharp reproof, which makes him worse ; he has spoiled the man, who is no longer a help, but an incubus. With an understanding of the causes, with foreknowledge of the certain results, all this is easily avoided. When the rush of the morning is over, we will encourage him to leave the hospital and seek open air diversion. A private can watch the dispensary and call the steward if a chance prescription comes in. Walking, picnics, hunting, and fishing will increase greatly the efficiency of our acting steward, and, in the end, reduce the steward's labors. When the public health is at its best, the sick may be consolidated into one ward ; for, with our small detach- ment, the liberation of one man is a large percentage of gain. We will try to reapportion the work so that all may experience the advantage. If our men know that we do our best to relieve them, they will continue their work more cheerfully. With the present allotment of force, the necessity of utilizing the labor of convalescents is recognized in gen- eral orders. Every man who is able to be out of bed can make up his own bed, keep his bedside table in or- der, and, possibly, contribute his share toward the gen- eral police of the ward. The man whose sprained ankle permits him to be out of bed can get to the kitchen to pare potatoes and do other sedentary work. The musi- cian whose sore lips will not permit him to blow his trumpet, is lit for any work about the hospital ; if the change of avocation does not please him, he will take better care of his lips in future. The inebriate, too ner- vous to handle a musket, will sleep the better for hand- ling a broom. With no critical cases in the ward, a ser- geant or corporal may be charged to maintain order, and the nurse given a few hours for open air amusement. This use of convalescents requires great discretion, and the surgeon's opinion must first be obtained in any case of possible doubt. You would not expose inflamed eyes to sunshine, wind, or dust ; nor subject an inflamed arm to exercise. A convalescent who refuses to work is liable to punishment by court-martial ; but there are many objections to such attempts to discipline men of other organizations ; it is generally better to presume that the man is not able to work, that an error has been committed in allowing him to leave his bed so soon. If he cannot work, it is clearly right that he should go back to bed. Men enjoy doing those things that they can do well. The steward will greatly promote the efficiency and con- tentment of his detachment by carefully instructing its members. Poets may be born, but cooks, nurses, gar- deners, and the like must be moulded by education to fit those positions. If we spend our time seeking men ex- actly suited to each place, we will grow weary compar- ing square pegs with round holes-for us, the brightness of the world will be dimmed by many disappointments. If the steward evinces an interest in the work, his men will contract enthusiasm by contagion. If he shows his nurse the neatness, beauty, and efficiency of the reverses in a roller-bandage, the ease and comfort from its equal pressure, and the smooth skin, free from welts, upon its removal, the man will gladly peruse all works on minor surgery that may be given him, and soon become a happy adept in various bandages-spica and many-tailed. Encourage your cook to experiment in new dishes, to accumulate a variety of recipes. Cook-books will soon be to him more charming than the latest works of fiction. While the plant is still in blossom, it is time to begin the discussion of the possibilities of a green tomato. From almanacs and cook-books he will gather a variety of re- cipes ; encourage him to try small quantities by several of the most promising, and seek a decision of the rela- 466 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Hospital Steward. Hospital Steward. tive merits from the gourmands among the patients and in the corps. When your hospital piccalilli attains a local celebrity, and ladies call to consult about ingredi- ents and proportions, you will have a happy, contented, and useful cook. But something more must be obtained from him. Let him feel that passes and other favors de- pend upon the ability of his assistant to take his place, and we will soon have two adepts in kitchen mysteries. If there is a hospital garden, there will be need of a gardener. The professed professional who seeks admis- sion to the corps is of doubtful utility. He is in the army probably because he has failed in that vocation in civil life ; and he will fail again, at the expense of the hospi- tal. The old Greek was wise who charged a double fee to those disciples who had enjoyed the teaching of an- other master. The man raised on a farm is only a little better than the professional gardener. He left the farm in disgust ; and it will be difficult to inspire him with enthusiasm for the work. If at home he dropped the corn in a depression made with his heel, he will despise a dissertation upon the advantages of sunshine and air, attained by scattering the seed in a broad hill ; he will inwardly groan at the military tyranny which compels him to depart from the ways of his ancestors ; and, when our back is toward him, he will revert to his original methods. We will have a much finer garden if we select a city-bred boy who has never seen a garden rake. There are many reasons for this. At the start, more personal attention must be given him. Then the charm of novelty will cheer him in Ids work. The proper adjustment of a clevis that the plough may glide easily to a proper width and depth of furrow, will be triumphs of his inventive genius. He will not take it as a personal affront if you showT him that the wilted plant was simply hung by the neck, with roots dangling in space beneath. He will consider the success of the garden a victory for which he has reason to be proud. In times of planting and weed- ing, we will put convalescents in charge of the wards and turn out our whole force. The w'ork is better done promptly; and our gardener will not become disheart- ened by the slowness of his achievement. For variety, usefulness, and general charm, there is no study equal to the study of men. With these few hints to guide him at starting, may the steward pursue it with profit and delight. Reading.-Considering the multiplicity of his -duties, the steward may feel that he has no time for study ; but, if he is systematic in this as in all things, he will accom- plish more than the average man. When he considers that a half-hour of effective study every day is sufficient each year to learn a new' language or master a new sci- ence, he will know that economy in small things is a se- cret of success. Because his time is limited, he will value it more highly, will use it more discreetly. The variety of learning required by his calling will suggest the im- portance of a systematic assortment of facts. He will make two great classes : those that he must have always with him, and those that can be found promptly when needed. The first class must be acquired, thought over, re- viewed, until mentally digested and assimilated into his personality, forming so many atoms of that sum total which the world calls common-sense. If one of these facts is used with a consciousness of the book from which he learned it, he has burdened his memory with a useless reference ; he has not sufficiently mastered the thing itself. When we acquire a new fact, let us con- sider it as a many-sided crystal, each facet of which must exactly coincide with every other fact in our possession. We will revolve the thing in our mind, and test the ac- curacy of its various angles and planes. If there are ap- parent irregularities that we cannot adjust, we will bear the defect in mind and seek a better illumination by fur- ther reading. Let us arrange our facts neatly and com- pactly, and study the common lines that extend through all. We will estimate the relative importance of our va- rious items ; if we post our markers properly, all minor facts will dress into line without trouble. The study of facts of the second class is the art of mak- (SUPPLEMENT.) ing useful memoranda. The steward cannot become a walking encyclopaedia of useful knowledge. To burden his brain with useful formulae and cosmetic recipes would be the sinful waste of an organ provided for better pur- poses. It is well to keep an index of things sought, in which can be entered every subject we are called upon to investigate, with references to the place or places where the information has been found. When we find the tale told better elsewhere, we enter a new reference. A scrap- book for newspaper clippings, a note-book for things that cannot be kept in the library, will often prove useful; but will grow cumbrous, without references in an index. The newspaper, the record of current events, and light literature, the record of current human fancies, are use- ful relaxations from more serious study. They must be held as incidents, not objects, of life. We must look upon them as we look at the passing pageant, at the varying lights and shadows of the sunshine on the hills, as things to be looked at, admired, and forgotten. We take a Sun- day walk to gather flowers by the wayside ; there is no use in the flowers, but we are grateful for the ability to admire their beauties ; we are better for having done so. Intelligent attention to details, and a constant aspira- tion for improvement, have rescued surgery from the barbers and converted it into a science whose devotees stand among the first of mankind ; by similar means may be elevated and improved the position and standing of hospital stewards ; to point the way is the highest aim and best wish of the writer. II. In tiie Field. Detachments.-Small parties without a medical offi- cer are frequently sent out to guard wagon trains, to cut logs or fuel, for hunting, and for many other purposes ; sometimes under a commissioned officer, sometimes un- der a sergeant or corporal. Whoever is in charge of such parties must be prepared to administer to accidents and minor ills. The change in diet and other conditions is almost certain to cause either constipation or diarrhoea ; and the officer in charge must be sent forth, like the apostles of old, with full powers to bind and to loose. He must be prepared to check vomiting before the occur- rence of dangerous prostration, and to relieve a stomach of injurious contents. He must be able to allay pain, promptly and safely, and must give rest and protection to inflamed parts. There is no region where a change of conditions and habits may not reawaken the slumbering germs of malaria, and quinine must not be forgotten. Expectorant cough-lozenges will be also required for bronchial troubles. Rheumatic cases are generally sent back to the post, but salicylates and alkalies may sometimes prove useful, and a bottle of turpentine, or other liniment, for slight muscular soreness may well be added as an incentive to massage. Ready-made plasters of mustard or of belladonna frequently relieve local pain and give men a comforting sense of being cared for. Tincture of iodine is frequently useful, but is difficult to pack securely ; if possible it should be issued in a bottle with a glass stopper carefully tied in with a string. A rag on the end of a stick for a swab, small enough to enter the neck of the bottle, is better than a camel's-hair brush, as, when lost, another is readily made; if the brush is lost, the amateur medicine-man may feel helpless. A similar bottle of water of ammonia for the stings or bites of insects will be useful. Vaseline, sheet-lint, roller- bandages, isinglass, and rubber adhesive plaster, absorb- ent cotton, and salicylated jute will make a very com- plete and useful medical packet. Each article must be plainly labelled with the moder- ate and maximum dose and the interval of safety between doses. The packages should be enclosed in yeast-pow- der cans or other similar receptacles, with a list of con- tents pasted on the outside of each, and all securely packed in a wooden box. Security and compactness are essential. In addition to the labels, it is well to prepare a list of contents with instructions for their use, that the officer in charge may take a frequent inventory of his medical 467 Hospital Steward. Hospital Steward. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. resources and select the required remedy with greater judgment. The following example is intended as a form, to be modified to accord with varying conditions, and with ever-extending experience. Contents of Medical Packet for Ten Men, Thirty Days. - Ammonia, aromatic spirit of, two ounces. Dose, one-half teaspoonful in a tablespoonful of water every twenty minutes, if required. As a stimulant in fainting or shock. In drunkenness, or vomiting, first give a tea- spoonful of common salt and a tablespoonful of ground mustard in a glass of warm water. After the patient vomits twice, give the ammonia, and repeat as required. Ammonia, water of, two ounces. To bathe the bites or stings of insects. Will blister if confined by a dress- ing. Bandages, roller, three inches wide, six. For press- ure, protection, and support of inflamed parts, as blis- tered feet, ulcers of legs, etc.; for sprained joints, first soak the injured parts in hot water for half an hour. Bandages, triangular, two. As sling to support fore- arms, also to retain dressings and protect wounds of scalp. Bismuth, subnitrate of, one scruple, with powdered opium one grain in each paper. Twenty papers. In diarrhoea, first give a tablespoonful of Epsom salts and a teaspoonful of paregoric in a half-glass of water; after two movements of the bowels give one powder, and repeat after each movement, not exceeding four pa- pers in twelve hours. In place of the salts, a tablespoon- ful of castor-oil with twenty drops of laudanum may be given. Keep the patient in a recumbent posture. Castor-oil, six ounces. Dose, a tablespoonful. Acute constipation. Combined with laudanum in colic, or di- arrhoea. [See Bismuth.] Cotton, absorbent, four ounces. For an inflamed eye, douche with hot water, and apply a pad of cotton to closed lid ; retain with gentle pressure by roller bandage. This will give rest and protect from external irritants. Dress twice daily. May be used instead of sponge in cleansing wounds or ulcers. A pledget soaked in lauda- num may be packed in an aching tooth or ear. Cough lozenges, one hundred. One every hour, if needed, in troublesome cough. Iodine, tincture of, two ounces. Apply to inflamed tonsils externally, and, in severe cases, internally, with a swab made by tying a rag or a pledget of absorbent cotton on a stick ; to the gums in soreness of teeth ; to frost-bites ; to indurations or painful swellings ; to fa- cial erysipelas; to chest, for pleuritic pains; over the breast bone in painful cough. Prepare a new swab when you would exact one for your own person. Iodoform gauze, a roll to fit in a half-pound can. Cleanse wounds with boiled water, allowed to cool suffi- ciently in a covered dish, approximate edges w'ith rubber adhesive plaster, dry the surface, and apply several thicknesses of the gauze. A useful dressing for ulcers, also for abscesses after evacuation of contents. Ipecac, powdered, half an ounce. To induce vomit- ing, give half a teaspoonful with copious draughts of warm water. May be repeated every fifteen minutes. In minute doses frequently repeated until nausea super- venes (vomiting is undesirable) in incipient colds ; also in dysentery. Jute, salicylated, one-half pound. A useful protective for wounds and ulcers. Gives elastic pressure under roller bandage. Laudanum, two ounces. Dose, five to twenty drops, at four-hour intervals. To relieve pain-for local pain, see " Cotton Absorbent." For diarrhoea, see " Castor Oil " or " Bismuth. " Liniment, acetic turpentine (or some other), six ounces. Apply with massage to slight strains or sore- ness of muscles, chronic stiffness of joints, etc. Morphine pills of one-eighth grain each, forty. Dose, one. Two, every four hours, is the extreme limit of safety, and if drowsiness last through the period, reduce and postpone the dose. To relieve pain. When the pain is not excessive, one pill every hour until pain ceases or four pills are taken, is safer. (SUPPLEMENT.) Mustard, ground, two ounces. To induce vomiting, give a tablespoonful with a teaspoonful of common salt in a glass of water. Paregoric, four ounces. Dose, a teaspoonful in colic, or mild diarrhoea. Pills, compound cathartic, forty. Dose, two to four. Follow in six hours with Epsom salts, if required. Pills, camphor and opium, forty. Dose, one every two hours, in colic, or painful diarrhoea. Plaster, belladonna, six, each four by six inches. For chronic localized pain. Plaster, isinglass, a roll. For slight abrasions. Plaster, mustard, six. A counter-irritant for acute local pain. Plaster, rubber adhesive, two strips, a yard long and one inch wide. To approximate the edges of incised wounds or ulcers ; sometimes to retain dressings. Draw snugly around corns, bunions, or ingrown nails. Quinine, forty five-grain capsules. Dose, one to four. In malarial fever or periodical neuralgia, give four at once as long before expected attack as possible ; in fevers, during the sweating stage. Salts, Epsom, eight ounces. In acute constipation, give a tablespoonful in half a glass of water ; in habitual constipation, give a teaspoonful in a glass of water every evening, and, if required, in the morning; a like dose will relieve pain after meals in dyspepsia. In diarrhoea, see "Bismuth." Salts, Rochelle, four ounces. In urinary derange- ments, a tablespoonful in a glass of water, to be taken in small quantity at short intervals, to consume this amount every twelve hours. Add two teaspoonfuls of paregoric to the above solution, in lumbago, and other forms of muscular rheumatism. Soda, bicarbonate of, two ounces. Half a teaspoonful in water in nausea or acid dyspepsia. A teaspoonful in teacupful of water, as a lotion in burns-afterward cover with flour. Soda, salicylate of, two ounces. In rheumatism, a teaspoonful every two hours until ringing in the ears or relief of fever' and pain ; afterward continue in smaller doses at longer intervals. Half a teaspoonful is a useful addition to a solution of bicarbonate of soda, in digestive derangements. Vaseline and zinc ointment, of each six small imper- vious boxes. Protectives for chapped hands and lips, sunburn, chafing, and abrasions. To Arrest Hemorrhage. - Secure absolute rest. Douche open wound with hot water. Approximate edges with rubber plaster and apply a firm compress under a roller bandage. If blood continues to ooze, compress the main artery above the wound by field tour- niquet or knotted handkerchief and Spanish windlass ; and secure surgical assistance as soon as possible. N.B.-Please preserve empty bottles, boxes, and cans, and return to post hospital with all unconsumed medi- cines and dressings-when no longer required. The above schedule will be a useful reference when we prepare to take the field with larger commands. Medicine panniers, orderly and hospital corps pouches contain a very complete assortment of drugs and dress- ings, but no list can be so complete that a useful sup- plement may not be made by comparison with such a list and consultation with the individual preferences of the medical officer. Favorite prescriptions can be more conveniently compounded in the stationary dispensary of the post hospital. Splint material, bichloride of mer- cury in weighed packets for a one-to-two-thousand solu- tion in a quart bottle, carbolic acid, and styptics, should never be omitted when skilled attendance accompanies the command. A lamp with a reflector to concentrate the rays of light, candles, matches, and instruments, must also be provided. Thorough study must be made of the various pan- niers and pouches supplied by the medical department, to know the existence, tile quantity and the exact loca- tion of each article. In case of accidents, as a wetting, requiring that every article be set out to dry, or an 468 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Hospital Steward. Hospital Steward. upset that throws all into a confused jumble, the steward should be able to recognize each article and restore it to its original position in pannier or chest. Let the privates remove the contents from a hospital corps pouch and try to replace them ; rarely will they be able to buckle the strap at the first attempt. This art of pack- ing is the first great lesson for field service ; its daily importance extends from pannier and mess-chest to the army wagon drawn by six mules. A thorough knowledge of the outfit provided by the medical department will be a useful guide for extem- porized substitutes as well as for supplementary pro- vision. The chief defect in the old pannier that came down to us from the Civil War, is the combination in one chest of medicines, surgical dressings, record books, and stationery. The tray containing dressings and in- struments had to be removed, with unavoidable exposure of contents, before a dose of medicine could be admin- istered. This suggests a division of the field outfit into medical and surgical, with a small, compact field desk for record books and stationery. Again, it is not wise to constantly expose our total resources to the many accidents of the field. It is better to divide them into medical and surgical packets for daily use. and medical and surgical reserve chests, to be drawn upon, as medi- cines are taken from the store-room to the dispensary of a stationary hospital. The amount of supplies for daily use will vary with the probable nature and duration of the service, with the more or less ready communication with the base of sup- plies. For instance, with a command of several com- panies, going to occupy a position thirty miles off for an indefinite period, you would take everything enumer- ated in the Medical Supply-Table ; for the same com- mand going on a reconnoitring or foraging expedition to return within a week, and leaving all invalids behind, the supply above indicated for a small detachment would require but little increase of quantities, and the addition of such surgical appliances as the nature of the service might indicate. A permanent camp will justify the transportation of bedsacks, blankets, and folding cots, benches, tables, and chairs ; for the bivouacs of the march, these things would be useless incumbrances. To grasp a thread to guide us through these endless variations, to study intelligently the analogies and dif- ferences in the hospital steward's duties when the hos- pital becomes movable, we will take an eight company post to which an unexpected order comes for six com- panies with a medical officer and a proper detachment of the hospital corps to proceed to a point one hundred miles away to camp an indefinite period. By the order, thirty days' rations will be taken, and the hospital will be provided with one ambulance and one six-mule wag- on. The Detachment.-Upon the receipt of such an order, the first question to be decided, and this must be done instantly, is which men will go, which remain ? This will be determined by the Post Surgeon ; but, as in all questions of hospital administration, the steward must be prepared to give an intelligent opinion. The full complement of men at an eight company post is two stewards, an acting steward and seven privates. The allotment for a two company post is a steward, an acting steward and four privates. But in our problem, it is something more than a two company post that is left behind ; the sick of eight companies are already here and the more serious cases will find their way back from the field. It is clear that in this division of force there is a shortage to be apportioned between the fractions. This will always be so. Non-combatants are impedi- ments to an army ; our problem will forever remain, to get the greatest amount of work from the fewest men. A steward, an acting steward and four privates constitute the maximum force that can take the field. The acting steward goes because the moving command is liable to further subdivision, and his skill may be urgently re- quired. The three privates left at the post must be thoroughly reliable, capable men. One must cook, one have charge (SUPPLEMENT.) of the wards and internal police, and one do the outside work, and be a general utility man to supply deficiencies everywhere. There is no margin for sickness or inebria- tion. Of the four privates for the field, one must be an efficient cook, and understand the management of ra- tions ; one must be able to drive the four-line ambulance team, and care for the animals. The latter has probably been milking the hospital cow ; but, with forethought for such emergencies, there is another private in the corps who can milk, and who must be kept at the post for that purpose. The other two privates for field serv- ice are so from necessity-their qualifications may be a subject for regret, but there is no remedy. In the hos- pital corps, there can be no roster for field service ; each man must take the place for which he is fitted. Equipment.-On the march-as in the desert-no man is a friend. Each man carries on his person the pro- vision for his individual needs ; and, transportation being so limited, he only carries enough for himself, and has every incentive to take good care of his own. Under these circumstances, he who goes borrowing will go sorrowing, and the outlook is equally bad for beggar or thief. "We have drunk from the same canteen," awakens sympathies in the heart of the civilian ; but to the soldier, the romance of this touching tie is crushed by the reflection that one-half of this friendship was misplaced, that one of the parties was a negligent vaga- bond who should have had a canteen of his own. This stern reality must be impressed upon the members of the hospital corps ; and the men detailed for field service must be w'arned immediately, to give them all the time possible to provide for their probable necessities. The official equipment is always ready : the extra pair of shoes, shirt, under-shirt, drawers, and socks are always on hand, ready to be packed with the blanket in the blanket-bag. The hospital corps pouch and can- teen hang ready for use with the belt, knife, and scab- bard, with the haversack always containing the meat- ration can, the knife, fork, and spoon. The overcoat, rubber blanket, and half shelter-tent with pole and pins, are ever ready to be rolled and strapped on the blanket- bag. When the hospital corps man has put on the above equipments, with a campaign hat and canvas leg- gings, he may think himself fairly equipped for the field ; but there are many little things for him to pro- vide. A hairbrush, a comb, a razor and strop, a tooth- brush, a cake of toilet soap, and a pocket mirror, should all be found in the small compartment of his haversack. Extra buttons, needles and thread, towels, pipes, tobac- co, matches, possibly fish-hooks and lines, are things that he must provide now, or go without. In the camp, the men must present a neat and soldierly appearance ; each will want shoe-blacking and brush, a button stick, and cleaning material. A few pairs of white gloves, for inspections and musters, will not greatly increase his burden. Is the soldier's clothing, now seasonable, such as he will require with the changing season ? Are woollen stockings, fur gloves, canvas-lined hood, and arctic over- shoes, liable to be wanted ? It is not enough that the soldier has these things; we must see that they are not left behind. The frozen members will be his own, but the resulting loss of service is an item affecting the general welfare. The equipment of the hospital corps varies with the command with which it serves. Without specific in- structions on the subject, our judgment must be guided by the necessities, conveniencies, and analogies of each case. When mounted, the blanket-bag is useless and incon- venient. Walking, this weight of twenty-four pounds moves with the body ; when mounted, the motion of the horse introduces a disturbing element of serious im- port ; the hospital corps man must learn to pack his sad- dle like a cavalryman, and turn in his blanket-bag for storage, until it is again needed. The rubber blanket may conveniently be replaced by a poncho with its central perforation to pass over the head and retain it in posi- tion without assistance from the hands. Vanity may inspire a longing for top-boots, but these are regarded 469 Hospital Steward, Hospital Steward. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) as useless and unnecessary incumbrances. The mem- bers of the hospital corps are mounted only for trans- portation-their duties are all performed on foot. The infantry canvas leggings answer every purpose when mounted, and, being light and pliable, will not impede the performance of any duty. When the command dis- mounts to lead up the hot side of a mountain, the feeling of the booted troopers toward the infantry leggings will be one, not of derision, but of envy. As the evolutions of a mounted detachment of the hospital corps will ever be of the simplest, spurs may also be dispensed with. The accoutrements of a private of the hospital corps form a considerable burden; and his efficiency will be increased by every pound of diminution. What the weight is, and how it may be lightened, are important questions. The belt, belt-plate, knife, and scabbard weigh one and one-half pounds ; the empty haversack with knife, fork, and spoon, and meat-ration can, weighs three pounds ; the canteen filled with water, weighs four pounds ; the hospital corps pouch weighs four pounds ; the blanket-bag containing one blanket, one pair of shoes, one dark-blue shirt, one undershirt, one pair of drawers, and one pair of stockings, with one overcoat, one shelter- tent half with pole, and one rubber blanket strapped upon it, weighs twenty-four pounds. The mere adjust- ment of these things to a man's person, so that his arms may hang naturally by his sides, so that the heavy blan- ket-bag may not impinge upon the hospital corps pouch and cause chafing, so that the canteen may be readily ac- cessible, is a very difficult problem, further complicated, in savage warfare, by the revolver with which he is to be armed. Every increase of this burden is a serious matter. Leaving the post on a warm October day, he cannot be expected to carry arctic overshoes, canvas-lined hood, fur gloves, and German socks, that he will only require six weeks later. Without specific provision, it would seem advisable to have a packing-box with the cover secured by a padlock, or a detachment property chest, of sufficient capacity to hold all accoutrements not in actual use. To prevent confusion every article must be marked with the owner's official number. The likelihood of loss will be much less if the many packages are secured in one chest. In a battle, the men detailed for bearers will go upon the field, only equipped with a canteen of water, the hospital corps pouch, the belt, knife, and scabbard. The re- mainder of their accoutrements and their extra clothing must be left at the temporary field hospital. If secured in a property chest, the men may find their own again after the battle ; in case of a sudden move, the chest will be carried along ; if the ground be suddenly occupied by the enemy, the Geneva cross may afford this property protection. In no case can individual lockers be carried into the field. Mounts.-Upon the receipt of the order to accompany a moving command, the number of horses that will be required is a question for immediate decision. A requisi- tion for that number of horses upon the post quarter- master, and for a like number of horse-equipments upon the post ordnance officer, must be prepared for the signa- ture of the medical officer, and the approval of the post- commander. These may not be on hand for issue, but these requisitions will be on record to relieve the medical officer of responsibility for the defective equipment. Never ask for what is not wanted; and we do not want surplus animals to give the small detachment extra work in caring for them. Army Regulations specify the num- ber ; but I know of no better illustration, that no general order can obviate the necessity for individual discretion and judgment. With a mounted command, say the Reg- ulations, every member of the hospital corps shall be mounted ; but. if one of the men drives the ambulance he will be mounted in the driver's seat; the cook will habitually accompany the wagon containing his outfit ; to look out for his kettles and pans in case of accidents on the road, he will be much better mounted on the top of the wagon. It must first be ascertained if the quarter- master will send a civilian driver with the ambulance mules, as there will then be required an additional horse. The number of horses being determined, we must ask for an equal number of complete saddles, curb bridles, watering bridles, and halters ; also curry-combs, horse- brushes, lariats, snap-links, double spring snaps for lari- ats, picket - pins, nose-bags, saddle - blankets, pairs of leather saddle-bags, surcingles, and side lines (or hop- ples). There is a choice between side lines and hopples. Where Indians may try to stampede the herd, side lines will give greater security ; if an animal is a vicious kicker, the side line will render grooming a safe opera- tion. Generally, the hopple is to be preferred ; after a fatiguing march, we ourselves would not rest well with a hand and foot tied together. In an exhausting cam- paign, when the abandonment of worn-out horses wTas of hourly occurrence, it was observed that those horses went through all right whose riders began the campaign by losing their side lines. These horse equipments introduce a new kind of prop- erty. With an ordnance list in hand, the various articles must be gone over to see that the saddles, bridles, and halters are complete ; we must learn to recognize and name the several components, that we may know what to charge for on the muster roll, if any part be lost. The bridles, halters, and saddles must be fitted to the horses, and then an attempt should be made to assign them so that each man may fit his saddle. Now is the time to discover disparities and to remedy them by exchanges with the ordnance officer. Arms.-If the war is to be waged against savages who do not recognize the Geneva cross, the members of the hospital corps will be armed with revolvers. One revol- ver and twenty rounds of ammunition for each man will be obtained from the ordnance officer. Each revolver will be loaded with five cartridges when issued to the man ; the vacant chamber under the hammer will sup- plement the safety notch in preventing accidents. The balance of the ammunition must be kept for issue as re- quired. This provision will give the men greater assur- ance in searching for wounded over a field where a crippled savage may retain sufficient vitality to be dan- gerous. After camp-fire legends of skulking savages creeping into camp, the man will sleep better for having his revolver within reach. His rest will be undisturbed by the reflection that he would be more likely to kill a good ambulance mule than an Indian, and the camp guard is ample security against such an unfortunate oc- currence. All must be impressed with the fact that, in untrained hands, a pistol is a public danger; that the general weal will require the confiscation of all self-cock- ing bull-dogs, and other private weapons upon discovery. The medical officer may make an exception in the case of a shotgun that may help the hospital mess. Tents.-The post quartermaster has suitable store- rooms for these and keeps them on hand for issue when required. Suitable requisition must be prepared for the signature of the medical officer and the approval of the post commander. Army regulations fix the allowance "in camp or garrison" at three hospital and one com mon tents. Again, each varying circumstance of climate, season, and soil demands forethought and discretion to adapt a general order to the necessities of a special case. Those hospital tents will be wanted upon arrival in a permanent camp, but they cannot be used on the march. Here, as everywhere, economy of labor, and of time, is an ever-present condition of our problem. In calm weather our entire force can raise a hospital tent with its fly ; in a moderate gale, the assistance of a strong detachment from the companies will be required, and, even then, without extreme caution, the iron pin that secures the ridge-pole will be so bent or broken as to render the tent unserviceable. In a driving storm, we will not wish to await such a detail, only to be had after the company camps are in order ; nor will we wish to gain for our detachment the reputation of being helpless people who require to be taken care of. The common tent is for the cook, and receives the mess-chest, food- chest, cooking apparatus, and his accoutrements. He must habitually sleep in it, to secure his conveniences from the raids of improvident people who have forgotten 470 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Hospital Steward. Hospital Steward. to bring along, or have already lost, the articles of prime necessity in camp life. There will be no room in the cook's tent for anything else. Panniers and other prop- erty must be unloaded immediately, for the ambulance and wagon must be parked with the other transportation under the one sentinel, and our animals must not be cheated of a single half-hour of their allotted time for grazing and rest. For daily use on the march, the best outfit of tentage that can be suggested, that will give the greatest amount of shelter with the least weight, with the greatest econ- omy of labor and time, is one conical wall-tent, one wall- tent with fly, and three common (laced corner) tents. The conical wall-tent gives the largest floor space for the weight, and will afford ample room for the property, for the detachment with equipments, and for sick men be- sides. The wall-tent is for the steward and acting steward, also giving room for the medical and surgical panniers and the field desk. One common tent is for the cook ; the two others will be found very convenient luxuries, not absolutely essential, but sufficiently useful to justify the additional weight of about fifty pounds each. In temporary halts the men need not be fatigued by pitch- ing and repacking the larger tents, the two common tents will afford ample shelter from the sun or rain for the hospital corps and the sick ; will give space to open pan- niers and dispense medicines or dress wounds. With a mounted command that frequently leaves the wagons hours behind, two of these common tents may well be packed with the litters under the ambulance seats. Im- mediately after halting, sick men can then be made com- fortable, the dispensary " opened for business," the am- bulance sent away, and the mules given equal grazing privileges with the cavalry horses, which will more than compensate for this trifling addition to their load. These two extra common tents will also greatly increase the capacity of our moving hospital in the stress of emergen- cies. In a storm or after a battle, the property can be packed into one of them, the hospital corps can pitch their shelter-tents, and the conical tent will shelter six- teen wounded men ; and there will still remain one wall and one common tent for operating-room and dispen- sary. The medical officer's tent goes with the head-quarters baggage, but it is well to draw it with the hospital tent- age and see that it is in good condition before start- ing. All tents should be marked " Medical Depart- ment," with name of post, with a stencil, in such place that the brand may be plainly visible when the tent is rolled. This will prevent confusion, if wagons break and the baggage is mixed with that of other organiza- tions. Tent-pins must be drawn in a free excess of immediate needs-especially if of wood. The extra ones must be packed in a box and well secured by nails. Those in use will habitually be rolled in the tent to which they per- tain. A hundred feet of small rope [ordinary clothes- line] for additional stays in high winds will complete our outfit of tentage. After receipt from the quartermaster, each tent should be pitched in the hospital yard-using only those imple- ments that are to be taken along. It can then be seen that the poles are perfect-and of proper size and length ; that all guy-ropes are in good condition ; that each tent has the required number of pins ; if torn, now is the time for mending. After the condition of each tent has been verified, it is taken down and the poles and pins are laid smoothly along its ridge and snugly rolled in. The roll is then bound by the ropes so that no pin can be shaken out; and the tent is ready for the wagon. This prelim- inary tent-pitching was once advised by a commanding officer, preparatory to a march the next day. One cap- tain said that, after his twenty years' of experience, this was entirely unnecessary; he would forget nothing. They camped eight miles from the post the next day, when this captain approached with crestfallen air and asked permission to send back a messenger-he had for- gotten his tent-pins. Tools and Implements.-From the quartermaster (SUPPLEMENT.) will be obtained three axes, three picks, two hatchets, two spades, one long-handled and one short-handled shovel, two mess-pans, two camp-kettles, and two galvan- ized iron buckets. On the march, there must always be found in the ambulance one bucket-for watering the animals by the way,-a hatchet, an axe, a spade, and a pick. With a wagon train, others will help to make the road passable ; but, the ambulance being the only wheeled vehicle with the command, you will constantly find gullies to be filled, creek crossings with banks to be sloped, and various obstructions to be removed from your road. Upon arrival in camp the cook will require one axe, and tent-pitching will be done more promptly if you have two for that purpose. When you can get one made, a wooden maul is a less destructive implement for driving tent pins ; a section from the trunk of a hard- wood tree, of suitable size, with ends supported by iron rings and a handle inserted through the centre, is all that is required. The picks and spades will be useful for trenching around tents, making sinks, and for various other purposes. A small coil of strong iron wire will prove frequently useful in repairing tent fixtures, guying up stove-pipes, etc. In a permanent camp, the hospital tool-chest will be a valuable addition to the outfit. A garden rake and a couple of brooms are policing luxu- ries that may well accompany the hospital tents for a per- manent camp. Mineral Oil, Matches, Etc.-For ordinary illumi- nation in moving camps, candles are most convenient- least troublesome. For surgical operations and clerical work at night there will be needed a supply of mineral oil for the Diamond reflector lamp. It is customary to take this oil, matches, wicks, etc., from the supplies of the post hospital. In a permanent camp these may be obtained by requisition upon the quartermaster, when candles will be no longer issued as a component of the ration, and hand lamps and oil lanterns will be re- quired. Rations.-The ration return will be prepared for " The Camp Hospital and Detachment of the Hospital Corps in the Field ; " the hospital has certain advantages over other organizations, in the sale of savings to the subsistence department, that may be needed. A list will be made of components as shown in Table III. (page 460), with additional columns for bulk saved, price, and amount. The preparation of this list will always be a crucial test of the steward's discretion, judgment, and experience, an ever-varying, always perplexing problem. The climate, the season, the character of the country to be traversed, the probability of making advantageous purchases along the road, the probable demand and mar- ket price for unconsumed components of the fation, are all subjects for consideration now. If the route is to be away from railways, away from the competitive com- merce of large towns, as little as possible will be sold to the subsistence department-and the higher prices that can be received in barter by the way be awaited. As the channels of commerce become poorer, the prices of the staple articles of the ration will increase, and those of such agricultural products as may be desired will dimin- ish. You must have food enough to surely subsist your men for the period covered by the return ; and a little money will be required to pay for eggs, milk, green corn, etc., that the men may have a variety equal to that of their comrades in the line. The companies leave the post with the fund of each organization to give elasticity to their dietaries; our detachment starts with nothing but the bare ration-we must make and expend a fund as we go along-there is no margin for error or misfortune. Life in the open air and increased exercise sharpen the appetites of the men ; and the only compensating increase in the ration is in flour, of which each man receives the entire eighteen ounces, there being no deduction for bak- ery expenses. Four pounds of baking powder is issued with each hundred rations ; and there will be obtained from the subsistence department two dutch-ovens in which the cook will bake his own bread ; so that we can safely save four ounces of flour from each ration. This and about one-third of the coffee will be the chief sources 471 Hospital Steward. Hospital Steward. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) of revenue for this incipient field hospital fund. The following sample statement of the first transactions with the subsistence department can only be a general guide, to be modified to accord with each special case : latter is especially true in regard to bacon, which deteri- orates in quality and loses weight during wagon trans- portation. The uncertainties of the future compel us to draw the moat ration chiefly in bacon ; but, as occasion occurs, the commanding officer will order the purchase and issue of fresh beef, when his order will be required for the camp commissary to take back an equivalent in bacon. Other- wise the detachment will have received double rations, the accounts of the commissary officer will be confused, and, if he attempts to straighten the matter by deductions from future returns, so much time will be required that the detachment may be split up into fragments, and a matter, simple at first, may become too complex for a just settlement. The five days' allowance of coffee will be roasted in the hospital range, ground, and secured in close cans in the food-chest. The Field Desk.-The folding desk furnished by the medical department is too small to contain a sufficient supply of blanks and stationery, and must be reserved for current work. In the absence of one specially de- vised, the ordinary company field desk furnished by the quartermaster's department will answer the requirements. In laying out the blanks to pack in it, we must consider that the post hospital is a camp hospital that circum- stances have rendered permanent; that the only change has been that record books have been substituted for the retained copies of various returns and reports which are still kept in the camp hospital ; and that a correspond- ingly increased number of blanks will be required. No meteorological observations are required from the mov- ing hospital. We must review the various departments with which we will have to deal, the various kinds of property for which we will have to account. Soldiers will enlist, be transferred to other commands, be dis- charged, die, be mustered, be paid, as at permanent posts ; sick men will be transferred to other hospitals ; the detachment will be reported monthly ; there may be lists of wounded, and reports of epidemics. Clothing and equipage, quartermaster's stores, and ordnance prop- erty, will each require a quarterly return. Changes of accountability will necessitate blank invoices, receipts, and requisitions; also returns of medical and hospital property. Completed cases and the hospital fund will be reported monthly. We shall need ration returns, requisitions for fuel, memorandum slips, a blank book for orders, letters, and endorsements, a copy of the Epi- tome of Current Orders and Decisions, corrected to date. With the exception of ink (which must be packed where the damage will be less in case of breakage), the station- ery may also be packed in the field desk. The Ambulance.-We must see that everything is in serviceable condition ; that no nut or brace is* loose; that the water-keg will hold water ; that there is provided an extra tongue, the required number of litters and rollers, a bucket, a lantern, an axe, a hatchet, a wrench, and a box of axle-grease. All bearings are lubricated before starting. The Army Wagon.-The busy day of preparation may well be closed by having the wagon brought to the hospital and loaded, ready to pull out with the train in the morning. This will obviate confusion and delay at the start ; the proverbial slip upon the threshold not only will bring misfortune, but is one in itself. With the in- terval of rest after loading, we can review our work, discover omissions, reconsider the relative importance of things taken and things left behind, and make desirable corrections before the hour of departure. With the average of American roads, thirty-five hun- dred pounds is the prudent maximum load for a six- mule team. The wagon box has a floor space of three and one-half by ten feet, and can be loaded to a height of somewhat over four feet, allowing for the curve of the bows. In determining the load, bulk as well as weight must be considered. Heavy packages must be placed nearest the ground ; articles required daily must be accessible without removing the entire load ; all must be packed as firmly and compactly as possible. The fol- Field rations from August 5 to September 4, 189-, inclusive. No. 180. Components. Due. Drawn. Saved. Bulk drawn. Bulk saved. Price. Amount. Fork 8 172 18 12 150 8 124 18 12 104 48 46 60 .. 60 80 80 6 lbs. 93 lbs. 0.078 0.022 0.042 0.231 0.13 0.188 $2.8i i'.ii 0.38 1.39 0.05 0.04 Bacon 36 lbs. Soft bread Hard bread Flour 12 lbs. 117 lbs. 15 lbs. 2 lbs. 10 lbs. 27 lbs. 1 gal. 2.7 lbs. 7.2 lbs. 7.2 lbs. X lb. 6 lbs. 144 lbs. 36 lbs. 51% lbs. 9 lbs. 6 lbs'. " 6.4 gal. 0.2 lb. Beans 160 100 20 20 180 120 180 180 ISO 100 Rice Coffee, green.... Sugar Vinegar Candles Soap Salt Pepper Yeast-powder... Potatoes Onions 180 180 180 180 150 144 36 180 180 180 100 150 144 36 Total saving? $5.81 Purchased from Subsistence Department: 12 lbs. ham, at 0.093 $1.12 9 lbs. Y. A. cheese, at 0.113 1 .02 5 lbs. lard, at .088 0.44 12 lbs. canned corned-beef, at 0.15 1.80 % lb. mustard, at 0.422 0.11 Total $4.49 Balance in cash 1.32 In the above transaction, including lard and cheese, there is no reduction in the weight of animal food. This will always be a safe provision ; the vegetables bought along the road will be starchy foods, substitutes for the flour ration only. The saving of flour is large, but within the limits of prudence when so large a percentage of the pound of vegetables can be drawn in potatoes. The prices are taken from a Commissary Price List cur- rent at the time of writing. The relative price of ham, as compared with bacon, is unusually low. Beans are saved instead of rice, because at the unusually high price the fund receives five cents more than would have been received from an equal number of rations of rice at five and one-half cents per pound ; the price of a quart of milk or a half-dozen eggs is an important gain for our fund in its birth struggle. The soft bread is drawn for use during the first few days of the march-as much as will remain fresh until consumed. The hard bread provides for accidents or irregularities of the march which may deprive the cook of the time necessary for baking. As soon as received, the ham will be boiled and some beans nicely baked-the pork was drawn to bake with them. These things can be more conveniently and better done on the range of the post hospital, and will greatly relieve the cook upon the march. Two slices of bread, a slice of ham, and a little mustard will make a sandwich to nicely fit in each meat-ration can ; and, with a bit of cheese, a little paper of salt, and an onion, will provide the men with a very satisfactory lunch at each mid-day halt. When the ham is gone, the canned corned-beef will replace it in the sandwich. There should be a mess- pan filled with the baked beans, which, served cold with vinegar, will economize time for the cook and prove a useful and popular addition to each early breakfast. When the rations are drawn, an allowance for five days will be put in the food-chest, and the remainder boxed up so that the cook can only have access to them by application to the steward. In this way waste, and consequent shortage, will be brought to the steward's attention before the matter becomes serious ; the rations will also be preserved in much better condition. The 472 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Hospital Steward* Hospital Steward. lowing list of packages and approximate weights may be of use as a general guide : Pounds. Rations 550 Food-chest, mess-chest, dutch-ovens, mess-pans, and eamp- kettles 300 Medical and surgical panniers 250 Medical and surgical reserve chests and hospital stores.... 500 Field desk, packed 100 Tentage for the road, with fixtures 350 Axes, picks, shovels, spades, guidons, etc 100 Tool-chest 90 A table and two benches, with folding legs, and four stools 100 Twenty-four blankets, in two cases 100 Twenty bed-sacks and twelve hair pillows 125 Stoves and pipe 125 Twelve folding cots 400 Twelve folding bedside tables 100 Folding dining table 125 Twelve folding chairs 125 Commode set 35 Pack saddle and fixtures 45 Twelve mattresses 300 Three hospital tents, flies, guys, and pins 600 Total weight 4,440 It will be seen how readily a prudent load is exceeded ; and the space is exhausted long before the maximum of weight is reached. The question is, What can be left be- hind with least inconvenience ? The twelve mattresses are not essential ; the folding cots are comfortable with- out them in warm weather, and in cold weather a folded blanket under each patient will insure sufficient warmth. Bed-sacks stuffed with hay or straw make clean, soft beds ; and, with rubber blankets to cover damp ground, the cots may be dispensed with. The ingenuity of the hospital corps will improvise a bunk if one be required. The bedside tables will never be missed. The folding chairs may be reduced to two or three. The dining table is a nearly useless luxury, as the lighter one with folding legs, made by the carpenter for use on the road, is a fair substitute, requiring less space. Pillows are so conven- ient for steadying an invalid's head, for supporting an inflamed limb, etc., that their exclusion must be a last necessity. The pack-saddle is carried in the wagon for use with expeditions without wagons. The quartermas- ter will provide an animal when required ; and you need not burden your detachment with another mule until it is needed. With the tentage for the march, you can im- provise a very satisfactory camp hospital by attaching the shelter-tents to the common ones for the use of the detachment, and reserving the conical wall-tent for a ward. One hospital tent will be a great convenience- but all three may be left behind if necessary. The med- ical and surgical panniers are consigned to the wagon as the orderly pouch, the instrument and emergency cases will be sufficient for all accidents on the road ; and the reduction of the ambulance load will be another ever- present and difficult problem of the utmost importance. Civilian Teamsters.-Army regulations direct that one member of each detachment of the hospital corps shall be designated as ambulance driver, evidently a wise provision in case of long-continued hostilities ; but while the corps remains on a peace footing it will generally be wise to accept the services of the civilian driver em- ployed by the quartermaster, and keep the designated am- bulance driver for other duties. The number of pri- vates that can be taken into the field is so small that this increase of force is of great advantage ; and to keep an extra man at every military post throughout the year to provide ambulance drivers for a field service aggregating but a few weeks, would not be an eco- nomical policy. The designated ambulance driver may be able to guide the mules safely along the excellent roads about the post, and still be unfit to follow a cavalry command across the country ; without the possibility of testing his skill beforehand, to entrust sick men to his care will involve great risks. Again, the mules cannot be kept for the exclusive use of the medical department- economy requires that they be used for other purposes during a great part of the year ; and the quartermaster does not like to discharge the civilian employee for so (SUPPLEMENT.) short an interval, as a good four-line driver is difficult to secure, and the man will find employment elsewhere. The quartermaster will send the mules in the harness to which they have been accustomed ; and it is better to leave behind the hospital harness. Your collars may fit the mules, but a new collar is like a new boot-a long march is not the proper time to begin its use ; and if your collars have been moulded by use to fit one team of mules, the next set of animals will surely be of a different size. At the last moment, there may be another little question to decide. Each organization has its own teams, and there will be no separate mess for the quartermaster's em- ployees ; the teamsters mess with the companies to which they are assigned. The drivers of the ambulance and hos- pital six-mule team will desire to turn in their rations and mess with the detachment of the hospital corps. These men must live somewhere, and cannot well cook forthem- selves. A company commander may take them as a favor that will be asked with hesitation ; but that company may be detached the next day and the trouble recur. The messing of outsiders in the hospital is prohibited, but these men are considered as civilian attaches to the hos- pital corps, who, if they turn in their rations, may prop- erly enjoy the services of our cook. This question has never been the subject of an authoritative decision, but such a ruling by the medical officer is supported by so many good reasons that it is likely to be sanctioned by higher authority if the question is ever raised. The Start.-At least an hour before the time fixed for starting, the men must be out to feed and groom their horses. Each man must care for his own-for they are strangers yet and prone to misunderstandings, and this early intimacy will beget a useful friendship. After stables the last home breakfast will be taken, each man provided with a mid-day lunch, saddles packed, canteens filled, and accoutrements made ready. The water-keg should be filled from the hospital cooler and wrapped in a wet gunnysack before being placed in the ambulance- to keep it cool by evaporation. The animals must be given an opportunity to drink. We will take a final in- ventory of the contents of the wagon and ambulance, and see that the emergency case and the instrument case are in the latter. The men will fail in for a final inspection, and, if there are no corrections to be made, may rest at ease until the warning call, " Boots and saddles." The wagon, with the cook on top, will pull out to take the place in the train that may be assigned by the sergeant in charge. The ambulance will follow in rear of the troops. The hospital corps, except the orderly who attends the medical officer, follow close behind the ambulance. Each start from camp will be a repetition of the above, with the addition of repacking and reloading whatever has been taken out for use. There is an instability about camp life that renders it important that, before sunset, everything about the hospital be so arranged that an order to move in the darkest part of the night can never cause delay, confusion, or loss. Breakfast is a great promoter of cheerfulness ; and, if the cook has done his baking, if he has his fire ready to light, his coffee ground and in the pot, no order to move out will be so sudden as to take the men out of camp without at least a piece of bread and a cup of hot coffee-as well as a suitable lunch in their haversacks. Habitually the cook must be called a sufficient time be- fore " Reveille" so that the men can take breakfast while the animals are munching their grain ; he can then wash and repack his dishes while the others are grooming, and be ready to assist in striking tents and reloading. It is customary to have all the tents in camp go down at a bugle-note ; but the medical department lias not men enough to handle all its tents at once, and it will be nec- essary to have the smaller ones repacked, and display our military precision upon the circular wall-tent. To have a place for everything and assign to each man his allotted share of the work-so that he may know what to do without orders-is the best means to insure celerity, to avoid confusion. After everything is reloaded, we will move our command a short distance away and go over the ground carefully-with a lantern if necessary-to see that 473 Hospital Steward. Hospital Steward. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. no tent-pin, knife, fork, spoon, cup, or other article has been overlooked. The March.-The detachment will be observed as it moves out. The restless horse is probably uncomfort- able ; the girth has the nature of a compound pulley- an injudicious man may pinch the back and cause an abscess in a short time ; if a horse shakes and tosses his head, the curb strap may be so long as to allow the curb to turn forward and strike the upper incisor teeth. There will be a short halt after the first two miles and at the end of every hour, when the feet of the animals must be examined, girths tightened, if necessary, and saddles readjusted. Sick men are given a pass from their company com- mander and fall out to await the ambulance ; cavalrymen are generally accompanied by a non-commissioned offi- cer. The surgeon examines each man and endorses his recommendation on the pass. Each man who is ex- cused from any duty by the surgeon must appear on the hospital reports, as in the post; the steward must have a suitably ruled blankbook and enter his name and the other required data at once-as he may never see the man after he leaves the ambulance. Men faint from heat, or suffering from other slight ailments, only need a ride to camp, and may not appear again on the sick report. When admitted to the ambulance, the cavalryman's horse, arms, and accoutrements are taken back to his troop by the non-commissioned officer who accompanied him ; the foot-soldier is directed by regulations to turn in his arms and accoutrements before leaving the ranks. In actual war, these provisions are essential, when strag- gling becomes a considerable evil, and a provost guard arrests all men out of the ranks without written author- ity ; but are generally neglected under the conditions of Indian warfare. The writer has followed marching columns more than twenty-five hundred miles without having seen a company commander's pass or an infantry soldier carrying another's arms or accoutrements. The medical officer will not raise questions of discipline in other organizations until the results seriously affect his immediate command. Common sense and the Golden Rule are useful supplements to army regulations in the face of perplexing conditions. For example, an infantry- man is overcome by heat, he feels dizzy and short of breath, he does not know what the matter is, but thinks that if he can rest a moment he will be all right. When the ambulance reaches the spot, wre will find him there. His ghastly face bathed in perspiration tells the whole story. There is no question of a pass ; we will give him restoratives and load him-and his trappings-into the ambulance. This converts our ambulance into a trans- port for arms and munitions of war, despite the Articles of the Geneva Convention, in violation of a paragraph of Army Regulations which specifies what may be carried in an ambulance ; but any practical board of survey will make us pay for that gun if we throw it away. Of course, in civilized warfare, should we fall in with the enemy, there would be serious incongruity between the cross on the sleeve and the arms in our hands. Truly, circumstances alter cases and demand the exercise of a rational discretion. When sick men start from camp in the ambulance, their arms and accoutrements belong with the baggage of their respective companies, and we must refuse to receive them, for the ambulance would soon become an ordnance depot and be seriously ham- pered in its legitimate functions. Each hourly halt will give an opportunity to adjust defects. The ambulance curtains can be raised and low- ered to accord with the changed direction of the sun. The animals must be offered water frequently, if the chance occurs. If there be grass, riding animals must be relieved of their bits and allowed to graze. This kindness of his master is appreciated by the horse as highly as the dainty morsels snatched by the wayside ; and the friendly relations established between man and beast promote that cheerfulness of spirit so necessary for protracted physical endurance. The man who takes every opportunity to gather a few handfuls of mesquite beans or any other dainty relish, and allows his horse to (SUPPLEMENT.) eat from his hand, will rarely be compelled to abandon a worn-out animal and continue his journey on foot. Temporary Camps.-Each arm of service has its own normal rate of speed. The cavalry, including halts, will average four miles an hour ; the infantry, three miles ; the mule train, two and one-half miles. The train can- not be hastened ; and it is very irksome and fatiguing to hold back a marching column to the slower rate. With- out imperative military reasons, the command will not be kept together. Starting together, with a purely cav- alry command, we will complete the march of fifteen or sixteen miles and arrive at the camping place a full three hours before the train. With a mixed command, the ambulance is kept in rear of all, and will arrive with the infantry two hours before the train. The cavalry are' sometimes held back for morning grazing after the infantry and train have resumed the march ; in this case, the ambulance will remain with the cavalry until the infantry are overtaken, when, keeping in rear of the entire command, it will arrive with the infantry as be- fore. The adjutant indicates the location of the hospi- tal, to which the detachment will proceed immediately. Each man will unsaddle and secure his horse with hop- ples and lariat in the immediate vicinity. In a scorch- ing sun, the backs of animals, moist with perspiration, must be protected until dry by the unfolded blanket secured by the surcingle. The ambulance is now un- loaded and sent to the place where the train will be parked when it arrives. All this will take but a few minutes ; and the ambulance mules will soon be relieved of their harness and grazing at ease. With helpless sick men, or in stormy weather, the ambulance may be left at the hospital until other provision can be made. The reason for not constantly leaving the ambulance near the hospital is that his wagon is the teamster's only shelter, and it is better that he should lodge near his mules. In threatening or stormy weather, or where artificial shade is required, the shelter tents may now be pitched. The topography of the site of the future hospital will now receive careful attention. The location for each tent will be marked, briars, weeds, and rubbish removed, trenches dug for the sink and the kitchen fire, fuel and water obtained, and the cook's fire made ready for the match. The location of the tents is a matter of some importance. The general location of the hospital has been fixed by the commanding officer, but the am- bulance officer has discretion as to details. High and dry ground will always be selected. A tempting greensward at a lower level is always a dangerous experiment; the place is smooth and green and level, because storm wa- ters concentrate there from every shower. Should our command have been preceded by another, it may be com- pelled to occupy the old camp ; and there will be a temptation to utilize the labor of our predecessors. But man is a mischief-breeding animal, and the old camp- ground has its dangers. It will be more prudent to clear away fresh brambles and pitch our tents to the front or rear, to the right or left. The tents will afford sufficient shade-and it is better to avoid that of trees, for the natural shade is grateful to numerous insects who may resent our intrusion ; for, if well apart, the tent and the tree will afford shade, and neither lightning nor high winds need cause anxiety. We will avoid ant-hills, for a ruthless war will result to our disadvantage. We will have a constant order in the arrangement of our tents and a settled place for everything, so that the men may learn to go into camp almost without orders. The kitchen should be somewhat in rear and on the lee- ward flank, that neither sparks nor smoke may be car- ried toward the other tents. If the camp be surrounded by dry grass or weeds, they must be immediately cleared by a belt wide enough to give protection from the spread- ing fire of some injudicious neighbor ; our own kitchen fire must be surrounded by a belt of fresh earth. The sink must be decorously screened by bushes or a common tent. The water-supply must be examined. If from a spring, a reservoir will be prepared-with gravelled bottom if possible-large enough to allow the water to be dipped 474 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Hospital Steward. Hospital Steward,. with a camp kettle without roiling. If water is to be obtained from a brook, an approach must be made so that the water may be dipped from the main current, and not from a foul eddy. If from a lake, the water may have a brackish taste from saline ingredients ; if so, a pit may be dug on the beach that the fluid may per- colate through the soil before being used. This will improve the matter, but the best will be bad enough. The surroundings will be examined carefully, that we may not be drinking the seepage from decaying animal matter. If the troops begin to use the slope above your water-supply as a decorous retiring place to answer the calls of nature, the steward will report the matter at once to the surgeon, that the matter may be stopped be- fore a passing shower can bring down the soluble ex- creta. Other organizations must prepare sinks, as the hospital has done, and be compelled to use them. The perspiration is now dry on the backs of the animals, and the blankets can be removed, folded, and placed with the other equipments. The animals can be watered and moved to fresh circles of grass. The experience of a few days will enable all these things to be accomplished speedily, and the men will have a considerable rest before the arrival of the wagon. When this comes, remove only those articles that will be needed. The whole force proceeds to pitch the tents and store the property and equipments within. The cook then unpacks his kitchen, lights his fire, and pro- ceeds to prepare dinner. The other men will now dig a small trench around the tents, banking the earth so that no overflow can reach the interior. These trenches will be of little use without a suitable outlet, a problem in hydraulics so simple as to be sometimes overlooked. The care of animals in camp is, as yet, a new problem for the hospital corps. Without experience, or definite instructions, the subject can only be discussed in a gen- eral way. As a first principle, each man must water, feed, and groom his own horse. This will promote a tie of comradeship between man and beast that will insure a better-cared-for, more serviceable animal. Then, the established hours for stable duties must coincide with those of the rest of the camp, for the trumpet calls will then be a reminder to prevent neglect, and will fix boundaries beyond which punishment will not be deemed unjust. The question of guards is more ob- scure ; no troop commander' will accept the responsibility for nine additional animals, and the mingling of these animals with a troop herd will be justly deemed a nuisance. These animals must be sent sufficiently far from camp to secure good grazing, and our four privates cannot furnish a herd guard. The most, feasible solu- tion of the difficulty seems to be, to put the horses on the same footing as the ambulance mules with the quar- termaster's train. Two or three lariats twisted together and stretched between the wheels of wagons and ambu- lance will make an improvised picket rope of sufficient length and strength. The end of the ambulance tongue is not a proper place to tie up animals. From overlook- ing this plain fact, the writer once found himself in the sands of Southwestern Texas, sixty miles from the nearest post, with the only wagon tongue snapped off at the hounds. Notwithstanding the midday lunch, the men will be ready for their dinner as soon as the cook has it pre- pared ; and, in the uncertainties of field service, a de- layed meal maybe a lost one. It is impracticable on the march to serve three daily meals as in the post; and this combined dinner and supper, being the heaviest meal of the day, should be served, preferably, two or three hours before sunset. Early hours are observed in camp, and ample time for digestion before retiring should be given. The cook, also, will have ample time, by daylight, to put things in readiness for any unexpected order to move. Tent ropes vary greatly in length with different de- grees of atmospheric moisture ; if dry when the tents are pitched, a shower in the night will so shorten them as to loosen or pull out the pins, when a sudden gust of wind may bring down the tents. The men must be in- structed to promptly adjust them, as a delay may cause a very unpleasant disaster. The steward's tent and that of the medical officer should be distinguished by planting a hospital guidon in front of each, for there may be sick calls in the night and the messengers-who will carry lanterns- need not arouse the other staff officers and the entire hospital. With everything in order, the later afternoon and evening may be spent in idle revery ; in watching the- lengthening shadows, the twilight deepening into night. The chirping of insects, the murmur of the brook, the rustle of the leaves in the growing stillness, become audible music, a droning lullaby, inviting to repose. This is the dolce far niente of camp life. At an early hour our little world is wrapped in unbroken slumber, the occasional challenge of the sentinel only rousing to a dreamy consciousness that all is well. Permanent Camp.-The bivouac for a night may sometimes become a resting-place for weeksand months. Sometimes the canvas is gradually replaced by more sub- stantial structures, and the bivouac has passed through all the stages of development to a military post. When it is known beforehand that the position is to be occu- pied for a considerable period, additional provisions for this more permanent camp can be begun before we dis- mount at the end of our march. The location will be selected with more care with reference to the convenience- of the command, the surface drainage, accessibility to- •water, and possible meteorological conditions. Sedi- mentary deposit on one side of a bunch of grass, flood- wood or rubbish piled against a tree, a general inclina- tion in one direction of the undergrowth, especially of dead brushwood, are each sufficient to tell you at a glance that the apparently driest of deserts is subject to overflow. That lightning will not strike twice in the- same place is a very unreliable proverb. What has hap- pened once is likely to happen again. Like causes have- like results, even with the uncertain -weather. Year after year a hail-storm will ruin the flowers at one end of the garrison and spare the rest. A belt of fallen timber- marks the path of a hurricane ; our tents will be safer to- the right or the left. Bowlders, or cobblestones, spread out at the foot of the hill, mark the limit of a descending avalanche ; it will sno-w again ; there are more stones- above. The perpendicular face of the terrace has not crumbled before the slow processes of rain and frost ; it has been cut away by a rushing torrent; more floods will come ; more land will fall. Where prevailing winds are dry the grass is greener on the lee side of the hill. We may profit by the same shelter. The cool, refreshing breeze from the mouth of a canon tells us that is not a good place for a winter camp. Ravines are natural outlets for storm waters ; we will avoid the lowest depression. Neither will the ex- posed divide be selected. Beware of a spot where un- usual vegetation indicates moisture ; it is the probable outlet of cold springs that no system of drainage will render habitable. In itself, a strong turf is of little im- portance, for it will soon be worn away, but if the grass- is scattered and wiry, or is replaced by reeds or rushes, we will avoid the place ; too cold for healthy grass, it cannot be made a sanitary dwelling-place. As our stay will be protracted, more room will be re- quired, and therefore the increased space may as well be cleared at once. A clear passage must be left between the tents for convenience, and that an accidental fire may not endanger all. The sink will be of greater depth and farther away. The tents should face away from pre- vailing winds, generally toward the east, or between the east and south. Square tents should present a fly to the hot afternoon sun. Shade trees in our dooryard will give the place a cheerful, homelike appearance, and will be so utilized when practicable. There is a monotony in life in a permanent camp that is sure to grow irksome; everybody will long for the novelties of the daily march. This is aggravated by ab- solute idleness, and work must be economized so as to- provide the men with a few' hours of occupation each 475 Hospital Steward. Hospital Steward. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) morning for as long a time as possible. After the essentials are provided, diligence is no longer a virtue. It is unwise to do to-day what can be put off till to- morrow, for the time will come when even drills will cease to be a diversion. If carefully planned, a few hours' work each morning after the general police will provide many comforts and luxuries. The kitchen needs, first of all, a place to store rations where they will be secure, out of the way, and preserved in better condition than they can be in a tent. A pit of suitable size can be dug with a passageway into the tent if practicable. It will be covered first with logs or poles, then with brush, preferably with the leaves on, and then with such a thickness of earth as will render impercepti- ble all changes in the external temperature. We must be careful to provide ample surface drainage ; and if there is danger from ground water, we will carry a narrow trench, somewhat deeper than the cellar, to a proper outlet. If cobblestones are at hand, this drain can be partly filled with them, the sod cut from the top laid on the stones, and the remaining ditch filled with earth. Poles laid longitudinally so as to leave interstices, may take the place of the stones. If necessary, this storeroom can be made above the ground level ; but more labor and material will be required, and the same uniformity of temperature will be attained with difficulty. An oven is a very useful addition to the kitchen. Men grow tired of baking-powder bread, and good baker's bread will be deemed a luxury. If an oven be provided, with a cool cellar where stock yeast can be preserved, your cook will rival the post baker in the quality of his bread ; meat can be roasted and beans baked. With brick or stones, lime and sand, but moderate skill is required to construct an oven ; but we can do without any of these. I have seen good bread baked in a hole in the face of a bank, where the soil was but moderately cohe- sive, with a perpendicular shaft sunk for a flue. On a level prairie, a foundation can be raised, or an excavation made for a hearth on which to pull out the coals. An empty barrel will serve as a form around which the clay can be packed ; a length of stovepipe will give draught, or a chimney can be built of sticks and mud. The wall must be thick to retain sufficient heat. A piece of sheet iron, or an old oil-can, will do for a-door; in the ab- sence of these, stones can be piled in the opening and banked with earth when the oven is used. The first fire will burn out the barrel, but the clay will be hardened and make a very durable oven. The kitchen fire admits of various improvements. Strips of sheet iron with holes for the kettles may be laid over a trench. This, with a couple of pieces of Sibley pipe or a rude chimney at one end, and a short piece of iron at the other to regulate the draught, will answer nearly all the purposes of a stove. The supply of sheet iron, or tin from old oil cans, is the only limit to the length of this trench, which may be extended across the interior of a tent, which will be sufficiently warmed thereby in the coldest weather. This system of heating may sometimes be conveniently applied to other tents, care being taken to bury the iron cover where it passes under the canvas. Poles, supported by crotches, can be put up in conven- ient places, where various articles can be hung when not in use. This preserves the articles in better condition and gives an unobstructed ground space. For lighter articles rope or wire answers the same purpose. Tent-pins can be replaced by posts firmly planted close to the tents, so as to minimize the hygroscopic variation of the ropes, lessen obstruction between the tents, and give greater security. The tent-pins will be repacked for use when the march is resumed. In hot weather, arbors can be built over the tents by weaving green bushes into a substantial framework of poles. It is better to make the arbor large enough to shade the tent without lateral walls, as the latter are in the way, and when the leaves get dry increase the danger from fire. With this protection from the sun, the square tents no longer need the flies, which can be used as awn- ings to increase the dry ground space. When there is a scarcity of canvas, and at the approach of cold weather, improvised shelters will be constructed. In choosing an architectural design for these, it is well to study the methods of the native population. Their experience is longer than ours, and they have arrived at their present practice after many errors, into which we may fall if we depart from their plans. On the prairies the scarcity of timber and the preva- lence of cold winds render the dug-out a favorite dwell- ing. But when man burrows in the earth, extra care must be taken to secure dryness of soil, ventilation, and sunlight. Life in a dark cavern will in a short time make men look like jail-birds. Sods used like brick, make an exceptionally warm dwelling, but involve the expenditure of more labor. With an earth-covered roof a sod building can be made frost-proof and replace the cellar where the nature of the soil forbids an excavation. The log hut, chinked and plastered with mud, also makes a warm dwelling, but windows are difficult to de- vise, and sufficient ventilation and light will not be pro- vided without a careful supervision. In milder climates poles planted in the ground, with the interstices plastered with mud, will form the walls, and the combined shelter tents of four men will make the roof of a very serviceable hut. The tent is a very expensive habitation, and when the camp is to be of considerable duration, the canvas will be replaced by the more economical frame structures, and the conditions of a post hospital will be approxi- mated. The camp hospital is the germ that by develop- ment becomes the post hospital; it is the atom that by multiplication produces the field hospital. A ward to shelter patients from the elements, a kitchen where their food can be prepared, a dispensary where medicines can be compounded, an operating-room where wounds can be dressed without disturbing other patients, a store- room for property not in use, a dormitory for attend- ants, a place for the dead, and an office where the records can be kept, are the essential elements present in all, and the administration is essentially the same. The ward of the post hospital, with its perfect ventilation, its cleanli- ness, and its abundant sunlight, is the type, the model toward which we aim. The variations in management are but efforts to obviate the imperfection of our means. The hospital tent, covering a ground space of 210 feet, and containing a cubic air-space of 1,620 feet, is intended to accommodate six patients. The canvas is practically as impervious as the walls and ceiling of the permanent ward ; some air may percolate through it, but the close meshes act as a filter to detain impurities, and the air that passes through from without can no longer be deemed pure. With a floor space and air space hardly sufficient for two patients divided among six, it is evident that the openings for ingress of fresh air and egress of foul air demand more constant attention. In summer, the side walls are raised, the end walls rolled back, and the patients are practically in the open air ; but in winter, with the sod-cloth sealed down, with the flaps carefully closed, with a stove consuming oxygen rapidly, to main- tain sufficient warmth and keep the air fit for respiration in a hospital tent containing six patients, becomes a very difficult problem. For convenience of administration, the tents are sometimes joined, end to end ; but, although the ventilation of each is kept independent of the others, it is unwise to subject more than two tents to a common fate, as the chances for error increase with the number, and the law of diffusion tends to produce a common at- mosphere in all. In the field, the soldier carries his personal effects in his knapsack, and prefers to bring them with him to hos- pital. As the allowance of transportation limits the amount of hospital bedding, he may as well use his own blanket, leaving the few hospital blankets for emer- gencies, or supplementary provision. If the case be in- fectious, the blanket and clothing have been contaminated before admission, and are better kept away from the com- pany baggage. They can also be disinfected before the owner is returned to duty. Bedsacks stuffed with hay or straw are better than 476 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Hospital steward. Hospital Steward, mattresses for field use. When soiled, the bedsack can be washed and refilled ; to rejuvenate a hair mattress is beyond our resources. Laundresses and matrons are unknown in the field; every soldier washes his own clothes ; and the laundry work of the hospital-as well as the clothing of helpless sick men-is a legitimate part of the hospital work to be done by members of the hospital corps. If the articles are pounded in a barrel of hot soapsuds, secured to a rope and allowed to float in a running stream for two hours, and then hung up by the corners to drip and dry without wringing, the matron and her sad-iron will not be missed. Battle.-Behind the line of battle, the first dressing station, the ambulance station, and the field hospital will each fall under the supervision of a hospital steward, and a previous consideration of the elements of the problem will facilitate the solution. Great battles are generally foreseen, and the location of the field hospital fixed by the medical director; but often the movements of the enemy are unknown, and an unexpected struggle re- quires immediate action. The medical officer may be searching for a wounded artery, and the selection of suit- able locations, and other preliminary arrangements will devolve upon the steward, who must be prepared to act intelligently and promptly. To afford the speediest aid with the least labor, and to keep out of the way, are the chief factors governing our choice of positions. If we obstruct the road with the ambulances and delay the ad- vance of artillery, ammunition, or reserves, we may give the enemy great advantage and ourselves more work. The Field Hospital.-This must be sufficiently far in rear to insure the wounded from anxiety or further danger ; but, with this object attained, as near as possible to the fighting line, for bearers and ambulances may have many round trips to the front, and an extra quarter of a mile will soon amount to a day's journey. From one and one-half to three miles is generally the proper distance from the line of battle. Previous knowledge of the ter- rain is of great advantage, but if we know what we are looking for, much topography can be learned at a single glance. Water, firm ground, easy access from the main road, and protection from the missiles of the enemy are the main requirements. A farm-house or other buildings that may supplement the tentage in case of need, will be a convenience. These things are generally found to- gether. A belt of timber or a range of hills may allow of a near approach to the scene of operations ; an open country, or an unstable front, may render a greater dis- tance necessary. It is well to be a short distance away from the main road, that it may remain unobstructed by waiting ambulances. Then, reserves must use the road in passing to the front, and they will not be cheered by a close inspection of the unpleasant results of war ; or, these marching columns may be observed by the enemy, who may experiment with long-range artillery to our dis- comfort. Strategic positions, clusters of trees, stone walls, and other defensive points will also be avoided, for an ebbing tide of battle may pass that way, and mili- tary necessity will ignore our field hospital now anchored there by a multitude of wounded men. The location being chosen, gates will be thrown open, fences and other obstructions removed, ditch crossings bridged, tilled, or graded, so as to give easy access to the front and rear of the proposed hospital. There should be a continuous road for ambulances to pass in and out without backing, turning, or passing one another. Then startled mules can have free headway, and there can be no annoying blockades or distressing accidents. The operating-room may be a tent-fly stretched as an awning, with a small tent to give further protection to in- struments and dressings. These should be to windward of the roads that the dust of passing ambulances may not cause trouble. They should also be screened from ob- servation, as patients awaiting treatment will not be cheered, and those already cared for will be made sick and faint by a view of the operating-table. The kitchen should be between the operating room and the wards, as it must furnish supplies to each. Boiling water and water boiled and allowed to cool in covered dishes must be constantly on hand in large quantities, for no well or spring will furnish water of sufficient purity for surgical purposes. There must also be a constant supply of hot tea, hot coffee, and hot beef-soup for patients as they are brought in. Hungry men will not do good work ; and meals at all hours must be served to drivers, bearers, and other attendants. The field hospital kitchen is a busy place on the day of battle. There should be two wards-one to receive the wounded from the field, and one to receive them after they have been cared for by the surgeon. The ward for patients awaiting treatment may, in fair weather, be in the open air with such natural or artificial shade as may be re- quired ; in stormy weather, tents must be pitched or a convenient building utilized. With a scarcity of canvas, it is better to use the buildings as a receiving-ward and reserve the tents for the more lasting occupation by patients from the operating-room ; for the sanitary condi- tion of the tents is under control, and the pathological history of the best of farm-houses is a subject for sus- picion. As the wounded are received from the field, each man will be provided with a card-if he has not been already provided with one-on which is entered his name, rank, company, regiment, hour and day of admission, and any other required data that can now be obtained. This card goes with the man to the operating-room, where is added the diagnosis and treatment, and then to the per- manent ward, where entries are made in the register of patients, list of wounded, etc., and the hospital number is added to the card. As the field hospital is but a temporary halting-place, liable to advance or retreat at short notice, a final disposi- tion of the cases must be made at every opportunity, and, without specific instructions from the surgeon, every case is awaiting transfer to the division hospital at the base of supplies ; and the transfer slip may be prepared at once, that transportation need only wait for the entry of date, destination, and surgeon's signature. An entry in the register of the final disposition, as death, transfer to di- vision, or general, hospital, etc., with the date, completes each ease so far as the field hospital is concerned. The receiving-ward may lack the skilled attendance of a surgeon, and the hospital steward must exercise his skill and judgment in therapeutics and minor surgery. Shock must be combated by artificial heat, hot coffee, beef-tea, ammonia, or other stimulants. Pain must be mitigated by morphia, by the mouth or hypodermically ; in severe cases by anaesthetics. Hemorrhage must be watched for and promptly checked until the surgeon finds time for its permanent arrest. The order in which patients are sent to the operating-room must be deter- mined. Hemorrhagic cases must go first; cases in shock or collapse must be given time to rally ; cases requiring an anaesthetic may alternate with milder ones, to give time for the administration. The anaesthetic will be given in the ward, as a view of the operating-table may unnerve the patient and aggravate the unpleasant effects of the drug. In the permanent ward, as the cases are received from the operating-room, we aim to place them as we would have them should our hospital become permanent indeed, for wounded men must not be moved about needlessly. Prisoners requiring a guard will be placed together. Severe cases, not admitting of further transportation, will be consolidated, not alone for convenience of nurs- ing, but because they will be disheartened at seeing other cases selected from the same tent to go to the rear ; then, should you be compelled to abandon the location, fewer men and fewer tents will need be left behind. Here each man's record must be verified and completed. Every- thing must be kept well closed up, ready to move at a moment's notice. This constant state of preparation for all contingencies is the proper remedy for the uncertain- ties of the situation, and will prevent that hurry which soon passes through confusion to panic. For t,he wounded, the battle is over ; and all rumors from the front must be rigorously excluded from the ward, as provocative of ex- citement and worry. 477 Hospital Steward. House Plumbing. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. In a few hours after the battle the last of the wounded will have been brought in, cared for, and sent away to a permanent hospital ; instruments will be cleaned, dried, and restored to the cases ; dressings and other property repacked ; surplus tentage returned to the distributing centre ; supernumerary ambulances sent to rejoin the central train ; and the field hospital is again a camp hos- pital, ready to take its place behind the marching column at the trumpet call. The Ambulance Station.-As soon as the field hospital is located, a steward will go forward with the ambulances and bearers toward the fighting line. The hospital is marked by a flag ; guidons must be planted along the roads leading to it. Study by the way all lanes and cross roads, to determine the shortest and best routes for the return of the ambulances. Remove ob- structions, repair bridges, fill dangerous ruts, and grade bad crossings, as you go along, Choose a route not likely to be obstructed by troops or trains, screened from the enemy by hills or timber. Note the relation of promi- nent landmarks to the field hospital, and the roads leading to it, that short and definite directions may be given from afar. The service of the ambulance mules is very important; and their safety must be considered in locating the ambu- lance station. The limit of safety is generally fixed at about a thousand yards from the line of battle ; but the nearer the approach, the greater will be the effective capacity of the bearers, the more rapidly can the wounded be removed from the field. A wood, a hill, a railway cut, or a ravine, may justify a much nearer approach to the scene of action. These things must be determined in a single topographical glance. The spot chosen must be a little off the main road, which must not be ob- structed ; must afford space for ambulances to pass in and out without collision, and without short turns, for drivers must have a free headway to bring startled mules under control. Uneven ground must be avoided or remedied ; the question is not only of broken vehicles, but of increased suffering for wounded men. A hos- pital flag must plainly advertise our business to friend and foe, and guidons, so planted as to be visible from the entire field, will help wounded men to find the am- bulance station. Shelter here will rarely be required ; but should there be delay in the ambulance service, shelter tents or blankets can be hung as awnings to give protection from sun or rain. A lire may be started and preparation made to serve hot soup, tea, and coffee. A supply of good water near at hand is an advantage, but is not essential, as every ambulance keg will come filled from the field hospital. A medical officer may be on duty at the ambulance station, or all the duties may devolve upon the steward. The name, rank, company, regiment, and probable diag- nosis of each case brought by the bearers, or coming in alone, must be entered in a suitably ruled book, and on a card to be attached to the patient. The temporary dress- ings applied on the field must be inspected and readjusted or others substituted, as may be required. Cases in dan- ger from hemorrhage must receive particular attention and be emphasized by a strip of red cloth. Shock must be palliated by hot drinks, ammonia, or other stimulants, care being exercised to avoid excess, always remember- ing that whiskey is not a panacea, and that stimulants increase the liability to hemorrhage. ■ Pain may be miti- gated by narcotics, the dose to be fixed by the Pharma- copoeia, and not by the emphasis of the patient's groans. Narcotics will only be given for present pain, and not in anticipation. Many cases will be able to walk to the field hospital, and severe cases have the first claim upon the ambulances. With a broken arm supported in a sling and bound to the trunk, or with a properly band- aged flesh-wound, with a hospital ticket to show the pro- vost guard, no man will care to linger in a spot affording so little luxury or safety, and small parties may be started on foot for the field hospital. Two privates of the hos- pital corps will furnish sufficient assistance at the ambu- lance station ; if there be more, they may be held as a reserve, to go to the front with the litters as required. (SUPPLEMENT.) The First Dressing Station.-The purpose of a hospital corps is to take the unfortunate where they fall on the battlefield, and transport them speedily and safely to the quietude and security of a hospital, far in rear, where they can be put under the most favorable con- ditions for speedy recovery. As the proverb says, a good beginning is half done, and the first dressing sta- tion is the place of beginning. Here, amid the din, the turmoil, and the excitement of battle, the attention of the hospital corps must be concentrated upon its own work. With the speed of systematic order, without disorderly haste, each case must have the benefit of cool judgment and skill from the very beginning. This can only be at- tained by a careful previous training of the men. A glance will tell that a man is dead, but it must be an educated glance, and without a previous caution the men will waste valuable time and leave men to perish from lack of attention, while they are bringing corpses to the dressing station. They must learn to recognize the presence and know the meaning of jetting arterial blood ; a few minutes may make the difference between life and death ; and it is clearly useless to start for the dressing station if their charge will be dead when they get there. They rhust learn to slit the clothing with the knife, and, having exposed the wound, to check the ebb- ing life-blood by direct pressure or by the tourniquet. They must have in mind the evil potentialities of the sharp fragments of a splintered bone, and learn to confine them within limits by such splint material as they have at hand, to secure immobility of the injured limb by binding it to its uninjured mate or to the trunk. They can protect open wounds from further harm by a fold of antiseptic gauze secured by a bandage. The aim of the first dressing station is to fit men for the journey of two or three miles to the field hospital. With intelligent bearers, under the supervision of acting hospital stew- ards, this work will be so thoroughly done where the man falls that the duty at intermediate points will be of inspection and verification only. Patients still able to walk, will come direct to the dressing station and receive attention there. Before beginning the thousand-yard journey to the ambulance station, as a rule, every case should be inspected and receive a hospital ticket as evi- dence that this has been done ; otherwise uninjured men might straggle to the rear. No matter how slight the in- jury, no wounded man will be returned to the ranks. The sight of his own blood unnerves a man ; he may be a good soldier to-morrow, he is useless in the line to-day. At the ambulance station or the field hospital he can re- place a hospital corps private, who can be sent forward for duty with the litters. After every battle there is a list with the uncertain record f' missing ; " and anxious friends turn to the records of the medical department, which should begin at the first dressing station. After a continuous peace of twenty-seven years, it is useless to try to follow the duties of the hospital steward through all the intricacies of field service in war. The survivors from our last great struggle are old men now ; and the everyday problems, the little perplexities and vexations of that great period have passed from their memories ; like the discordant note in distant music, these things have been left behind. The elements already dis- cussed are raised above the humdrum of life : these seemingly petty details assume a vital importance when we consider that, from this starting-point the younger generation must go forward to meet the great problems of the future. We live not for to-day, but patiently strive to perfect our methods in expectation of the mo- ment when Father Time shall change the slide in his dissolving views, when these minor pictures shall fade away, and we shall stand face to face with the grander panorama of a Nation in Arms. The magnitude of the picture will not appal us; for in it we will recognize-as old friends-familiar elements, combined in familiar atoms, multiplied many fold, but ever the same. The steward's work will be simplified ; for in this increase of work there must be a division of labor. If he keep the records, it will be without interruption from kitchen or ward ; if in charge of the kitchen, he can give it his en- 478 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Hospital Steward. House Plumbing. tire attention ; the perfection of his methods will stand out in bold relief ; he will be glad that he learned to avoid errors on a smaller scale, for what he learned to save as pennies will be dollars in the larger transactions; his tables, laden with delicacies, will tell the story of long and careful preparation. In immediate charge of the sick, in a large general hospital, in church or school- house, on cars or steamboats, or in tents on the hillside, the ward of the old post hospital with its annexes wijl forever remain the unit of measure, the model and the type. Each oscillation of the kaleidoscope will produce a" pleasing combination, for the beauty of each picture will be derived from the perfection of the same familiar fragments. The advent of war will bring higher duties ; for the increased work there will be a multitude of willing but untrained hands ; with a perfect knowledge of details, with long experience in the study of men, the hospital steward will stand forth as a teacher, with a far-reaching influence for good. Art is long, and time is fleeting, and no man can hope to say, in one short work, the hundredth part of what might well be said on any subject. The chief object of book or treatise is to make men think ; and, if this little work is laid down, not only with a knowledge of what has been said, but with a consciousness of dozens of other things that might have been said in the same connection, if it incites to meditation, to more thorough preparation, it is a success-its highest aim has been accomplished. George IF. Adair. HOUSE PLUMBING, GENERAL PRINCIPLES OF. During the last six years considerable progress has been made in the practice of plumbing toward the ideal outlined in the Handbook in 1886. Greater simplicity in piping, and more science in the construction of the fixtures, are the most marked features of this progress. Several cities and towns have modified their plumbing ordinances by striking out the requirement for special trap ventilation called " back venting," and architects, builders, and plumbers generally are becoming more convinced of the uselessness and danger of such a requirement. The importance of constructing all fixt- ures on the principle of the "flush tank" is becoming widely recognized, and we rarely find to-day in first-class plumbing work fixtures with the diminutive outlets almost universal ten years ago. The waste pipes are now thoroughly scoured at each discharge of the wide-mouthed fixtures now in use, and ample ventilation is effected throughout the entire drainage system by the discharges, as well as by the thorough ventilation of all the main stacks of piping at both top and bottom. Me- chanical seals for trapping are fast disap- pearing, and are now rarely seen in good work. People have become convinced that balls and valves in traps increase the com- plication, retard the outflow, and add abso- lutely nothing to the security of the seal. A sound water seal has been shown to afford perfect safety, and, moreover, no other kind of seal is practicable in water- closet traps. Hence the simple antisi- phonic " water seal trap is becoming exclu- sively used for all kinds of fixtures. The sanitary rule of setting all fixtures "open" has become fashionable. Traps and waste pipes are neatly and solidly set, and handsomely polished or nickel- plated. They are becoming each year more frankly rec- ognized by architects as legitimate subjects for artistic treatment. Scientifically constructed and beautifully decorated fixtures, set with highly finished open piping, are among the "show" features of a well-appointed mansion to-day. It is the rule now to admit light and air everywhere under the fixtures, where ten years ago it was the exception. The quick flushing sink for kitchens and pantries de- scribed in the Handbook has been greatly improved within the last few years, and is now entirely automatic in its action. It affords, perhaps, the best illustration of what can be done by plumbing fixtures toward scouring out the waste pipes by powerful water flushing. Figs. 310 and 311 represent the perfected sink in sec- tion and in perspective view. The sink is discharged by means of a self-acting siphon, and a vertical strainer is interposed between the flush-pot and its siphon. The short arm of the siphon is trapped with a seal-retaining Fig. 310. Fig. 311. trap just behind the vertical strainer. This strainer slides up and down in a groove to give access to the trap when desired, but closes again automatically by its own weight as soon as released. It has been assumed as an indispensable condition in the design of the apparatus, that absolutely nothing should be dependent upon the intelligence or care of the servant, and that by no possi- bility could the waste passages become clogged, either by accident or by design. Clean-out openings are provided at the trap and weir- chamber, and give access to every part of the waste sys- 479 House Plumbing, Hydrogen Peroxide. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. tem. No bones and solid refuse can be scraped into the discharge outlet and dropped into the waste pipe, be- cause this pipe ascends instead of descends at the outlet, and should the top be clogged it will simply cause the water to cease to How out until the obstruction is re- moved, which can easily be done by simply raising the lower strainer and lifting out the obstruction by hand. The operation of this apparatus is as follows : The sink is used in the ordinary manner until the flush-pot fills to the height of the siphon overflow. When this point has been reached the next discharge of a quart or two of water suddenly emptied from the washing-pan or drawn from the faucet, charges the siphon and causes the entire contents of the flush-pot to rush out through the waste passages, filling them " full bore " and scouring them from end to end. The solid matter and large lumps of grease will be left on the bottom of the flush- pot, and must be removed by the servant in the proper manner, inasmuch as they cannot possibly be removed in any other manner. The simple standpipe overflow basin and bath-tub, and the siphon "jet'' water-closet described in the Hand- book as lately introduced improvements in plumbing, have now come into very general and constantly increas- ing use, and in one form or another are recommended by every dealer in plumbing fixtures as embodying the cor- rect principles of construction. J. Pickering Putnam. HYDRACETIN (Acetyl-phenyl-hydrazine). A chemical compound of hydrazine, H2NNH3, in which two hydro- gen atoms are replaced by phenyl and acetyl groups. Its formula is C6H5 HNN1I CH3CO. It may be prepared by mixing one part of anhydrous acetic acid with two parts of phenyl hydrazine ; the mass becomes hot, and on cooling deposits crystals of hydracetin. Pyrodin of com- merce is hydracetin mixed with three parts of sugar. It was introduced by Dr. Dreschfleld, of Manchester, Eng- land, in 1888. Hydracetin is a white crystalline powder, without taste or odor. Soluble in water, 1 part in 50, more so in hot water; very soluble in alcohol. Dose, one-sixth to one-half grain. It possesses powerful antipyretic properties, and was recommended for typhoid fever, rheumatic fever, and phthisis. The temperature begins to fall in half an hour, and the lowest point is reached in two hours. The effect is not of long duration, and the fever begins to rise again in a few hours. In acute rheumatic fever it appears to have had the best effects, the painful joints being also relieved. It also possesses analgesic properties, and has been used to relieve the pains of locomotor ataxia, neuralgia, and muscular rheumatism, with marked suc- cess. Its employment, however, is negatived by its toxic ac- tion. It is a very decided blood - poison, exerting a destructive action on the corpuscles, and haemoglobinuria is produced. It gives rise to depression, coldness of ex- tremities, sweating, and weakened pulse and respiration. It is generally conceded that it must be used with care, not more than two grains being given during the day, and it should not be continued for more than three days in succession. Guttman, who early reported its value as an antipyretic, and carefully studied its action, advises one and one-half grain a day in divided doses. If the antipyretic action is wanted, the second dose should be given an hour after the first ; if for rheumatism or neu- ralgja, one dose should be given in the morning, the other in the evening. Hydracetin is also employed as a local remedy for pso- riasis, its value in this disease depending upon its reduc- ing power. It is employed as an ointment of pyrodin in the strength of one part in ten. Il has failed to meet with approval, as it is not equal to pyrogallol and chry- sarobin, and if applied externally may produce toxic symptoms. A case is reported where a ten per cent, ointment, applied to a third of the surface of the body, produced jaundice, haemoglobinuria, and the usual poi- sonous symptoms within ten days. Beaumont Small. (SUPPLEMENT.) HYDRASTIS CANADENSIS (Golden Seal). Although not at all a new remedy, its haemostatic properties have received a great deal of attention during the past few years, particularly in Europe. Attention was di- rected to it in Germany in 1883, by Dr. Schatz, at a meeting of the Association of Physicians and Natural- ists. He described it as an American remedy of decided value, and reported strongly in its favor for the treat- ment of chronic hyperaemia, and chronic inflammation of the internal genital organs attended by losses of blood. Since this introduction it has been extensively employed with very general satisfaction. In menor- rhagia and metrorrhagia without organic disease, as well as in hemorrhages associated with metritis, endome- tritis, and other structural changes, it is said to check the flow more rapidly than any'other remedy. In the hemorrhages occurring at the menonopause, and the ex- cessive menstruation of young girls in which the tissues are relaxed and congested, it has proved itself particu- larly useful. It also relieves all conditions of conges- tion of the pelvic organs, ovarian pain, dysmenorrha'a, and other distressing symptoms arising from this cause. Its action when the flow is due to myomata appears un- certain, some observers claiming for it decided curative powers, while others have failed to secure any benefit. It has been used in obstetric practice without producing any ill effects. Bossi, of Genoa,1 gives the result of sixty- four cases in which he employed the fluid extract in such cases. He gave from one hundred to two hundred minims daily, in divided doses, and found that it had " a constant, curative, and prophylactic haemostatic action on the uterus during pregnancy, labor, and the puerperium, without any ecbolic effect or modification of the uterine contractions." He found it more beneficial than ergot in the flooding of labor and in post-partum hemor- rhages, and he trusted to it as a prophylactic for hemor- rhages at all periods. Notwithstanding this very de- cided statement regarding its ecbolic properties, it should be administered with great caution during pregnancy. Cases are reported * in which it has exerted a very pow- erful action on the uterine muscular tissue and induced abortion. Dr. Falk4 in his experiments with hydras- tinine was not able to arrive at any conclusion, but thought it probable that it did possess an ecbolic action. The haemostatic properties of Hydrastis are due to a constricting action on the arterioles, and this effect seems particularly directed to the vessels of the uterine mucous membrane. Numerous Experiments have been made to determine the physiological action of the drug, and among the more recent is a very thorough study of the alkaloid made by Dr. Cerna,3 of Philadelphia. The following are some of his more important conclusions : Hydrastine is poisonous to animals, the minimum lethal dose in dogs being 0.50 gramme for every kilogramme of the body weight; it kills by failure of respiration. In small doses it appears to have a stimulating effect on the muscular tissue; toxic quantities, however, destroy the irritability of the muscular tissue ; on the nervous system it resembles strychnine in its action, increasing reflex activity by stimulating the spinal cord ; in larger quanti- ties it produces convulsions, and lastly paralysis ; on the circulation, its effect is to diminish the number and in- crease the volume of the cardiac beats, by an action upon the heart-muscle and the intra-cardiac ganglia ; in minute, medium, and poisonous doses it invariably causes a fall in the blood-pressure ; in lethal doses this continues until death occurs, while in smaller and medium doses the pressure gradually rises again, but never above the nor- mal point. This lowering is due to a direct action on the heart, and through a paralyzing influence exercised on the vaso-motor system, acting through the central ner- vous ganglia. Although the active principles obtained from the plant have been extensively employed, the tincture and fluid extract still sustain their reputation and are preferred by many. Twenty or thirty minims of the tincture, or twenty minims of the fluid extract, repeated four or five times a day, will generally secure all the virtues of the plant. 480 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. House Plumbing. Hydrogen Peroxide, Two alkaloids have long been known, hydrastine and beberine, and a third termed xantho-puccin has recently been described, but it has not been definitely separated, and its identity remains a matter of dispute. Hydrastine possesses all the haemostatic properties of the plant. Its salt, the hydrochlorate, is usually em- ployed. It is a crystalline white or faintly-yellow salt, soluble in water and having an extremely bitter taste. It is employed in doses of from half a grain to five grains, in the same conditions and with the same objects in view as when the preparations of the crude drug are given. The alkaloid beberine is not present in large quantities, and is generally obtained from beberis vulgaris, in which plant it is present in large quantities. It is devoid of any haemostatic properties, and is employed as a tonic and alterative. It is a bitter orange-yellow crystalline powder. Hydrastin is an eclectic remedy consisting chiefly of beberine and extractive matter, it is used for many of the purposes for which the alkaloid is employed, and as a cholagogue, stomachic, and tonic. It is a bright- yellow powder. The latest product, and what is looked upon as the final active principle, is hydrastinine. It is a product of the oxidation of hydrastine which breaks up into hydrasti- nine and opianic acid. Hydrastinine hydrochloras, the salt employed, is a pale-yellow crystalline powder, hygro- scopic and soluble in its own weight of water. The dose is very much less than that of hydrastine, being from half a grain to one and a half grain. This substance is said to possess all the medicinal properties of the plant, and is used in all the disorders for which the latter has proved beneficial. The reports of its use are very satisfactory. It is said to act very rapidly, producing its effect almost immediately when administered by subcutaneous injec- tion, while the preparation of the root requires several days' administration before any decisive effect is produced. Dr. Falk4 has used it in all forms of uterine hemorrhage with very great success ; in menorrhagia he obtained the best results by commencing the treatment six or eight days before the expected flow. He gives during this time a daily hypodermic injection of three-quarters of a grain of the hydrochlorate of hydrastinine, and when the flowr has begun he doubles the dose. He uses a ten per cent, solution in distilled water. No advantage or disadvan- tage arises from larger doses. Other reports6 are equally favorable : twenty-six out of forty-eight cases of hemor- rhage were checked within twenty-four or thirty-six hours, and of twenty-seven cases it exerted a decidedly beneficial action in twenty-four. It was administered iu capsules or pearls, each containing three-fifths of a grain, three or four being given daily. No unfavorable symptoms fol- lowed its use. Its vaso-constrictive action has suggested the use of hydrastinine in epilepsy.6 Experiment on animals with two-thirds of a grain per kilogramme, distinctly dimin- ished the excitability of the cerebral cortex, and moder- ated or prevented artificially induced epilepsy. These observations led to its use in six cases of epilepsy, in doses of from one-quarter of a grain to one or two grains per day. In four of the cases the attacks decreased, both in frequency and intensity ; in the other two not much benefit was noticed. In addition to the haemostatic properties, hydrastis also exerts a beneficial effect on the mucous membrane of the digestive tract. It has been used with success in atonic dyspepsia, and habitual constipation due to torpid liver; and in the debility arising from the drain of the bleed- ings it acts as a tonic, resembling quinine in its action. Its local action is also important, its alterative and astringent properties having long been utilized. It is used as a lotion or injection in leucorrhoea, purulent vaginal discharges, erosions of the uterus, and gonorrhoea. Its local application has also been beneficial in pharyn- gitis. Beaumont Small. 1 British Medical Journal. November, 1891. 2 The Lancet. May. 1886. 3 The Therapeutic Gazette, May, 1891. 4 British Medical Journal, May, 1890. 6 Merck's Bulletin. March, 1892. * Ibid., October, 1892. (SUPPLEMENT.) HYDROFLUORIC ACID. The employment of inhala- tions of this gas has been suggested by Dr. Dujardin- Beaumetz as a means of treating tuberculosis of the lungs. Knowing its very powerful antiseptic and bactericidal properties, and it having been demonstrated that a 1 to 3,000 solution was destructive to the tubercle bacilli, he instituted a series of experiments, and found that animals could live without inconvenience in an atmosphere con- taining one part of hydrofluoric acid to 1,555 of air. In- quiry among the employees of glass-works also showed that the vapors in no way acted injuriously on the work- men, and those who were afflicted with pulmonary affec- tion were benefited by employment in the works. For the purpose of applying this treatment the patient is placed in an air-tight compartment in which the atmos- phere has been impregnated, with the gas. One grain of the pure acid may be vaporized in a room of the capacity of twenty-two cubic metres, which gives the proportion of 1 to 25,000 ; or, the room may be filled with air that has been forced through a solution containing fifty per cent, of the gas. The patient is placed in the room for one hour daily, the period being gradually prolonged. The results of this treatment are varied : in some in- stances very favorable results were obtained, in others it proved irritating and increased the pulmonary trouble. Experience has shown that asthmatic and emphysema- tous patients, and those subject to haemoptysis should not be subjected to the treatment. Inhalations have also been applied to other zymotic diseases. In diphtheria it has been used, the air of the room being impregnated with the gas obtained by vapor- izing the acid, or by the action of sulphuric acid on fluor- spar. In whooping-cough it is reported to have a very de- cided effect. One tablespoonful of the acid is put in about one quart of water in an inhaler, and used every second day. Four or five inhalations are said to check the paroxysms, and the cough that remains may be treated as an ordinary catarrhal affection. The ordinary acid of commerce is impure and requires to be redistilled for medicinal purposes. It is an aqueous solution of about thirty per cent, of the gas, from which copious white suffocating fumes are evolved. It requires to be kept in leaden or gutta-percha vessels, on account of its corroding action on glass. The salts of hydrofluoric acid have been utilized for their antiseptic properties, the fluoride of sodium being the most suitable. It is quite unirritating, and is recom- mended for use where bichloride of mercury cannot be employed. Experiments have shown that a 1 to 350 so- lution prevents the growth of the yeast fungus, and pa- thogenic and non-pathogenic microbes. Solutions of the strength of 1 to 3,000 may be used for ordinary antiseptic purposes. Beaumont Small. HYDROGEN PEROXIDE. There has been an extra- ordinary revival of this compound during the past few years. No new method of utilizing its many virtues has been discovered, nothing new has been added to its me- dicinal properties, and yet, after an interval of more than thirty years, its value is suddenly recognized by the pro- fession and it becomes " the necessary peroxide of hy- drogen." It is difficult to trace the cause of this sudden prominence, but in all probability we have to thank the enterprise of the manufacturers for bringing it to the notice of the physician and the surgeon. Discovered in 1818 by Baron Thenard, it remained almost unknown until Dr. B. W. Richardson instituted a series of experiments, to consider the possibility of utilizing it in the treatment of disease, and communicated the result of his work to the Medical Society of London in 1860 and 1862. These papers formed a very exhaustive treatise and introduced the subject in almost as thorough a manner as we know it at the present day, although the presence of germs and the role they play in disease was not known at that time. The following is Dr. Richard- son's resume of his papers. In the paper of 1860 he ad- vanced that, (a) the peroxide quickens oxidation, increases secretion, arterializes blood, and hastens the decomposi 481 Hydrogen Peroxide. Hydrogen Peroxide. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) tion of decomposing animal tissue ; (b) in combination with blood it restores the power of muscles just dead to contract, and yet calms muscular irritability ; (c) that it promises valuable aid in a large number of cases of dis- ease ; (d) that in instances of poisoning by narcotics and the alkaloids it might with advantage be introduced in the blood by transfusion or injection ; (c) that in tetanus it affords a most rational treatment, since tetanic rigidity is lost by its presence in muscle ; (/) that in typhus, in which death takes place from what I designated as as- phyxia commencing in the blood, it might be employed with good effect as an oxygenator ; (</) that it ought to prove useful both as an internal and an external remedy in the treatment of cancer. In the paper of 1862 the fol- lowing were his conclusions : (a) that in diabetes the peroxide reduces the specifio gravity of the urine, while it rather increases the quantity ; (b) that in chronic and subacute rheumatism it affords relief ; (c) that in valvular disease of the heart with pulmonary congestion it gives re- lief to the dyspnoea ; (d) that in mesenteric disease and in jaundice it causes an improvement in the digestion; (e) that in pertussis its effect for good is very remarkable, since it cuts short the paroxysms of cough, and seems decidedly to shorten the period of the disease ; (/) that in chronic bronchitis it lessens the dyspnoea and renders the expec- torated matter less tenacious; (y) that in chronic laryn- gitis it gives pain on being swallowed, and does not appear to be useful ; (Ji) that in anaemia it does not of itself render a service, but favors the good effect of iron ; (0 that in the first stage of phthisis it causes improvement in the digestion, and in the later stages gives unquestion- able, and even wonderful, relief to breathlessness and op- pression, acting, in fact, like an opiate without producing narcotism, and assisting oxidation ; (J) that it produces a modified salivation, and might be a good substitute for mercury and the iodides in the treatment of syphilis. In these papers, although noticing the disinfectant properties, the author did not emphasize their importance, but in an address to the British Medical Association, in 1865, the local employment of the remedy and its disin- fectant property were particularly dwelt upon. On this occasion he introduced its use as a spray, and recom- mended it as a disinfectant for sick-rooms in which patients were suffering from infectious disease, for fetid and ulcerated surfaces, and for the treatment of diph- theria, syphilitic ulcerations of the throat, and gangrene. Until quite recently there appears to have been but lit- tle advantage taken of these important communications. From time to time an occasional paper would appear, and with the advance of knowledge in the field of bac- teriology its germicidal properties were demonstrated, but the applications of these properties to the treatment of disease were wholly disregarded. The revival of its use may be said to date from a paper by Dr. E. R. Squibb, of Brooklyn, published in Gaillard's Medical Journal for March, 1889, in which he pointed out its valuable properties and advocated its use in diphtheria. There had been occasional communications before this, but they had not attracted the attention of the medical authorities, or influenced the profession to any extent. Numerous papers and reports of cases treated with the peroxide followed, but it was not established as a remedy in surgical practice until Dr. R. T. Morris, at the meeting of the American Medical Association, in 1890, described its usefulness wherever there was formation of pus. Very little is known of the chemical constitution of hydrogen dioxide. It has the formula H2O2, and is de- scribed as water combined with an additional atom of oxygen, but what this combination is has not been deter- mined. Richardson considered it identical with ozone, and this view is very generally accepted ; it responds to the same tests, and it has been found that water saturated with as many volumes of oxygen in no way resembles the solution of the peroxide, and the action of the two is very different. In using the peroxide it is possible to secure either the ozonic action or the action of simple oxygen ; if the solution or spray is used ozone is the active ingre- dient, but if the peroxide is decomposed the gas that is evolved is no longer ozonic but simple oxygen gas. The therapeutic value of the peroxide depends upon its instability, and the decomposition that takes place when it conies in contact with certain substances. It is compatible with the mineral acids, alcohol, alcoholic solutions of the alkaloids, alcohol combined with ether, amyl nitrite, glycerine, tannin, and is not decomposed by healthy living tissue, or if decomposed by other sub- stances, exerts on it no injurious influence ; but in the presence of every form of germ life, decaying organic matter, pus, or abnormal secretion, it is instantly decom- posed and the liberated " ozonic " oxygen attacks and de- stroys such substances. Its action is perfectly simple and uninjurious, it cleanses the part of all impurities, and acts as a mild stimulant to granulation tissue ; it does not cause pain, except in a slight degree when ap- plied to the delicate mucous membranes of the nose, con- junctiva and urethra. Possessed of this bactericidal action and the property of destroying albuminoid discharges and necrosed tis- sue, its value in many surgical diseases is readily under- stood. Applied to ulcers, abscesses, or any secreting sur- face, it destroys all foreign matter and leaves a clean healthy surface ready for immediate repair. A daily ap- plication of the fifteen-volume solution, and dressing with borated lint or any simple dressing, will secure a healthy and rapidly healing surface. In abscess cavities the same treatment may be adopted after evacuation, and Morris states that it is possible to open an abscess of the breast, sterilize it, and destroy the pus, and have perfect recov- ery, under one dressing. Where there is a sinus or where the abscess is deep and burrowing, it is better to in- ject slowly and gradually, allowing the first portion to cease effervescing before a further injection is made. In some instances, where the sinus is not deep, it may be desirable to inject freely, the distention that follows al- lowing the fluid to permeate more thoroughly into the numerous recesses that may be present. For sloughing and gangrenous conditions of cancerous disease it is in- valuable to the surgeon and to the patient. It rapidly disinfects the part and removes the offensive odor, and its haemostatic properties check any dangerous hemor- rhage that may follow the removal of sloughing tissue. For inflamed mucous surfaces, • where pus is freely secreted, it may be used with much advantage, partic- ularly if the discharges are foul and offensive. In con- junctivitis, ozaena, ear troubles, cystitis, vaginitis, and gonorrhoea, the parts are to be first washed and a solu- tion of fifteen volumes diluted with eight or ten parts of distilled water applied freely. In these cases it will sometimes be found necessary to use cocaine to allay any sensitiveness. In washing out the cavity of the bladder a double catheter should be used to allow the liberated oxygen to escape. It has lately been used in the treatment of empyema. Cases are reported in which the pleural cavity was washed with the peroxide, followed by a borated solu- tion. The advantage derived from the peroxide in all cases was very decided, recovery being rapid and unac- companied by any unfavorable symptom. In poisonous snake-bites and the bites of rabid animals, it is recom- mended as an antidote, and has been used with good effect to counteract the painful effects of rhus poison- ing. Its powerful local action makes it a very valuable ap- plication in diphtheria, and this is one of the most im- portant uses of this compound. It proves very efficient in destroying and removing the diphtheritic membrane and counteracting the ptomaines that may be formed. The frequency and strength of the application to a great extent depends on the character of the disease. Two or three applications may be sufficient, but if the membrane is extensive and interferes with respiration, the solution can be used every hour with benefit. Spray- ing or gargling should always be adopted. The fifteen- volume solution is used in its full strength if the case is urgent, but the solution diluted with three or four parts of water will generally be sufficiently strong. Reports point to its very great service, and it is rapidly becoming the one topical application that is supplanting all others. 482 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Hydrogen Peroxide. Hydrogen Peroxide. In all forms of diphtheritic inflammation it is equally efficient, as either in the nose or in the larynx the spray readily reaches the site of the disease. In addition to its beneficial local action, the inhalation of the liberated oxygen undoubtedly is of benefit, particularly in the severe cases in which the oxidation of the blood has been interfered with, and the patient is in a condition of cyanosis. The internal administration of the peroxide is as impor- tant as its topical use. In giving it we are giving oxygen, and, as in its local application, it is the supply of free oxygen upon which its beneficial action depends. With- in the intestinal tract, as well as on the surface of the body, its disinfectant and bactericidal properties are taken advantage of. In thrush, aphthous states of the mucous membrane of the mouth, and all such unhealthy conditions, it acts quickly and beneficially. In chronic gastritis, gastric ulceration, and all catarrhal disorders accompanied by fermentation and flatulent indigestion, its use checks the abnormal fermentation and restores the disturbed function. Under its influence the general acidity of the gastric juice and the proportion of free hydrochloric acid are increased, and the digestive power markedly improved. In the forms of dyspepsia accom- panied by hyperacidity the administration of the perox- ide causes an aggravation of all the symptoms. One drachm of the fifteen-volume solution, diluted, three times a day before meals, has proved a sufficient dose. For disturbances of the lower bowel and rectum it may be administered as an enema. Richardson used one ounce to a pint of water and injected it through an O'Beirne tube. In typhoid fever it has been used in this way and administered by the mouth. One ounce may be diluted with one pint of water and taken during the day as a beverage. Richardson used it with favorable results, and Dr. H. F. Wiggin, in the New York Medical Record, November 28, 1891, reports a case in which he believed that the peroxide proved of great value. In ad- dition to the above conditions, in which it exerts a local disinfectant action, its power of oxidizing the blood opens up a train of diseases in which it may prove of very decided service. Whether administered by the mouth or inhaled into the lungs, it affords rapid relief in asthma, emphysema, chronic bronchitis, phthisis, heart disease, and in acute pneumonia. Also in poisoning by hydro- cyanic acid and the numerous new aniline compounds it should prove of benefit. In pulmonary phthisis it not only relieves dyspnoea and shortness of breath by im- proving the blood, but also counteracts the night-sweats and fever by neutralizing the ptomaines. It is also sup- posed to act favorably by destroying the bacilli and the purulent infiltrated tissue. In the first stages it possesses a decided remedial action, and Richardson states that it is, of all medicines, the most valuable. This observer also suggested that it might be administered by sub- pulmonary injection, throwing the solution directly into the lung tissue. He considers that no harm should fol- low this method, and the oxygen would rapidly diffuse and destroy the tuberculous exudation. In whooping- cough it is said to act almost as a specific, given internally and inhaled. Dose : from ten to eighty minims, three times a day, diluted. Its beneficial action here is due not only to its antiseptic properties, but also to its power of relaxing muscular spasms. Its action is the same in asthma and angina pectoris, and other spasmodic affec- tions. This action described by Richardson leads him to suggest its use in hydrophobia and tetanus. He proposes to inject groups of muscles with the ten-volume solution, using amyl nitrite in combination if necessary. The property of promoting oxidation in the system has led to its use in diabetes, with beneficial results. The sugar is rapidly diminished, but the amount of urine is increased, this latter effect being characteristic of the peroxide, which increases all the glandular secretions. To overcome this excessive secretion the following com- bination is used by Dr. Richardson : Codeine, 3 grains ; alcohol, 2 drachms ; peroxide of hydrogen (10 vols.), 2 fluid ounces ; distilled water to make 12 fluid ounces ; a tablespoonful to be taken three times a day in a wine- (SUPPLEMENT.) glassful of water. Many other observers have obtained the same satisfactory results in this disease. On account of its stimulating effect on the excreting glands, it is highly extolled by Richardson in the treat- ment of syphilitic disease, especially in the secondary and tertiary stages. For indolent ulcers, skin lesions, and tertiary deposits its internal administration is very beneficial, particularly if the cachexia is marked. He recommends that it be given in two- to four-drachm doses, three times a day, with infusion of cinchona. The only unfavorable action is a mild form of salivation, which is readily overcome by stopping the medicine. It also in- creases the action of mercury when given at the same time, much smaller doses of the mercurial salt proving effective. The evolution of the oxygen and the great expan- sion that accompanies this physical change, furnish what may be termed its mechanical use. This may be taken advantage of in invagination of the bowel, and may also prove serviceable when sounding the blad- der for stone, a small quantity causing a sufficient disten- tion for the purpose. It is also recommended to inject it into a part in which suppuration is suspected. If pus is present the usual reaction occurs and distention follows, into which an incision may be made with facility. The freedom from toxic action and its unirritating qualities render it a very simple remedy to use. One to two drachms of the fifteen-volume solution, three or four times a day, can be administered, without the fear of any unfavorable symptoms, and will generally prove suffi- cient to secure all its peculiar effects. It should be freely diluted with water free from any organic matter, and mixed as required. For enemata and for hypodermic injection the solution should always be neutralized with soda. For sick-rooms its disinfectant and deodorizing proper- ties are best secured by diffusing it as a spray, and hard rubber or glass appliances only should be used. For spraying the throat the solution may be medicated with tannin, quinine, morphine, or any of the alkaloids solu- ble in alcohol. The subcutaneous injection is indicated only when an immediate and rapid supply of oxygen to the tissues is wished for, as in asphyxia from drowning, hanging, or in chloroform poisoning, or poisoning from any nar- cotic.. In extreme cases of chloroform poisoning Dr. Richardson suggests that deep subpulmonary injections might be made, throwing the peroxide directly into the pulmonary tissue of each lung. The solutions should be diluted and free from any acid, and of the temperature of the body. No ill effects should follow, as the oxygen is rapidly absorbed, and the small amount of water that re- mains is harmless. For inhalation the oxygen is very readily eliminated from the solution, by the aid of permanganate of potash, which also supplies its share of oxygen. A ten per cent, solution of the permanganate added to the peroxide at once decomposes the solution thoroughly. This reaction may be produced in an inhaler and the gas at once uti- lized, or- it may be preserved in balloons and used as re- quired. The peroxide of commerce is a two or three per cent, solution of true peroxide of hydrogen. Pure anhydrous peroxide of hydrogen is known only as a chemical curi- osity, and is described as a colorless, transparent, inodor- ous liquid, specific gravity 1.45, extremely unstable. When decomposed it yields four hundred and seventy- five times its own bulk of oxygen, leaving behind a little less than one volume of water. The solutions of com- merce are designated by the numbers of volumes of the gas that they supply, being five-, ten-, or fifteen-volume solutions, according as they contain a little over one, two, or three per cent, of peroxide of hydrogen. To be exact, a one per cent, solution should supply 4.75 per cent, of oxygen, and a fifteen-volume solution should contain a little more than three per cent, of the peroxide. The pure peroxide is of course undesirable, not only is it not manageable, but it is altogether too strong for any prac- tical use. 483 Hydrogen Peroxide. Hydroxylamine. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. The preparation is still the same as that proposed by its discoverer. It may be formed from the peroxides of any of the alkaline earths, but barium is the most suitable. The barium oxide is formed by exposing ba- ryta, heated to redness, to a current of oxygen gas ; the resulting salt is then acted upon by hydrochloric acid which releases the oxygen, and this combines with the water to form the peroxide of hydrogen. Fourteen parts of hydrochloric acid are diluted with nine hundred and sixty parts of distilled water, and to this thirteen parts of powdered barium dioxide are added. This gives about a one per cent, solution of the hydrogen dioxide. The barium chloride, which is still in solution, is removed by treating w'ith dilute sulphuric acid, and the chlorine, which remains as hydrochloric acid, is precipitated by sulphate of silver and baryta water. The presence of a small amount of hydrochloric acid is useful in maintain- ing the stability of the solution, and it is generally pres- ent in a slight degree ; the amount, however, should be very small. Richardson preferred the addition of dilute phosphoric acid, but the acid produced during its manu- facture is the one usually present. The instability of the peroxide renders the article of commerce of a very indefinite strength. Numerous anal- yses show that the solutions are far below their nominal strength. Of nine specimens examined by Dr. S. S. Wallian,1 only two were found to be of the proper strength, and one sample of a ten-volume solution con- tained one and a half volume only. Dr. H. E. Smith 2 analyzed fifty samples, and found that the highest volume- tric strength was only 8.86 ; eight per cent, of the samples did not contain any hydrogen peroxide whatever, and thirty-six per cent. wrere decidedly deficient in strength. Dr. E. R. Squibb3 examined nine samples of the five leading manufacturers' products, and found that only one reached two-thirds of the proper strength, and two samples were less than one-half the stated strength. These results speak for themselves, and when it is re- membered that many of the articles that are supplied to the physician have been in the chemist's shop for a pro- longed period, with very little care to preserve their prop- erties, there is little wonder that the results obtained from its use are not as favorable as expected. It is desirable to keep the bottle away from the light and in a cool place, but the decomposition that goes on within the bottle is due to organic matter and other im- purities in the solution. A good preparation should re- main fairly stable, even when of a high strength. Squibb states that, even when exposed to a summer temperature, it should grow stronger rather than weaker, as the water should evaporate more rapidly than the peroxide decom- poses. A solution of peroxide should be bright and clear and free from any deposit or cloudiness, this arising from the oxidized matter thrown down by the decom- position of the peroxide. To prevent this decomposition, free acids are added, but if impurities are present the loss of oxygen still continues. The strength of the solution may be tested with a stand- ard solution of permanganate of potash. Dissolve 2.832 grammes of potassium permanganate in distilled water sufficient to make 500 c.c. of the solution. Ten c.c. of hydrogen peroxide is then diluted with water to make 100 c.c., and ten c.c. of this is to be tested. A few drops of sulphuric acid are added to acidify the solution, and into it the permanganate solution is to be added, drop by drop, until it begins to color the solution. The number of c.c. used indicates the number of volumes of oxygen present. Another method of testing is to decompose the solution and collect and measure the oxygen evolved. Ozonic Ether.-At the British Medical Association, in 1865, Dr. Richardson introduced this combination of ether and peroxide of hydrogen. He produced it by agitating a thirty-volume solution of the peroxide with anhydrous ether and adding five per cent, of alcohol. It is soluble in water, is more stable than the solution of peroxide, and may be administered in all the conditions in which the latter is used. The dose is from half to two drachms. As a spray for topical use and to disinfect the atmosphere it is particularly serviceable. In whooping. (SUPPLEMENT.) cough it is very highly praised, as almost a specific remedy ; it is used as a spray and the following mix- ture given : Ozonic ether, three drachms ; syrup of Tolu, six drachms ; glycerine, four drachms ; distilled water, to make six ounces ; one-half to two tablespoonfuls for a dose. The ethereal compound also permits of its union with fatty bases for inunction. This is employed in scar- let fever as a disinfecting application, the use of which prevents any poisonous matter from being disseminated, and at the same time is a soothing and emollient applica- tion. Richardson also recommends the use of ozonic ether for the production of anaesthesia, the presence of the oxygen preventing any dangers that might arise from partial asphyxia. Under the name pyrozone, there is supplied an ethereal solution of different degrees of strength. In one it is stated that there is as much as one hundred and twenty volumes of oxygen. Glycozone is another preparation of peroxide of hydro- gen, in which glycerine is acted upon by the peroxide under pressure ; it is said to supply fifteen volumes of oxygen. The advantage claimed for it is that it is more stable, acts more slowly, and proves more efficient as a dressing for wounds and other surgical purposes. Beaumont Small. 1 New York Medical Journal, November 26, 1892. 2 Ibid., August 6, 1892. 3 Ibid., August 6, 1892. HYDROPS ARTICULORUM INTERMITTENS. An extremely rare and obscure disease, characterized by periodically returning attacks of swelling of one or more of the larger joints, unaccompanied by fever or any of the usual signs of inflammation. • But thirty-three cases have so far been reported, and of these but three in this country, the two observed by Fridenberg and the one of my own. There is a remarkable uniformity as regards the symp- toms in all the cases, they forming a clinical picture so characteristic and typical as to leave no doubt of the diagnosis in any well-developed case. The patient notices a slight swelling in one of the larger joints, usually the knee, and perhaps has his atten- tion drawn to it by a feeling of tension, or of discomfort, uneasiness, insecurity, or wabbling in the affected part. This rapidly increases, so that usually, in from twenty- four to thirty-six hours the joint is so swollen as to seri- ously interfere with, if not to entirely inhibit, the nor- mal functions. In a short time, usually a day or two, the swelling begins to subside, and in from twenty-four to thirty-six hours more it is entirely gone, leaving the joint to all appearance in as perfect and healthy a con- dition as before. After an interval of perfect freedom the swelling again appears and the same phenomena are repeated, and so on for an indefinite period of time. There are no premonitory signs or symptoms indica- tive of the disturbance ; the patient may be, and usually is, in his customary good or bad health, as the case may be. During the attacks there are in most cases no signs of constitutional disturbance; the normal functions of the body remain undisturbed. In two cases, those of Bruns and Pletzer, there was a slight rise in the temper- ature during the initial attacks, but not afterward, while Perrin reports a case in which each attack was preceded by light chills, followed by slight fever ending in perspira- tion. Simultaneously with this there was a contraction of all the flexors of the upper extremity, also a painful prick- ling in all the joints of the same limb. A few hours later the swelling began, and with it the above phenom- ena gradually disappeared. In most cases there is no acute pain whatever ; in some, however, especially when the hip-joints are affected, the pain is quite acute. In these exceptional cases the diag- nosis might be difficult at times, as the swelling would be more apt to be overlooked than when the knee was affected. The subjective sensation is more that of ten- sion, insecurity, and wabbling, than that of pain. Ex- amination during the attack shows the swelling to be an 484 REFERENCE HANDBOOK OF TIIE MEDICAL SCIENCES. Hydrogen Peroxide Hydroxy la mi ne. effusion into the joint. When the knee is affected there is the characteristic bulging at the sides of the patella, which, together with the fluctuation and the ■well-marked ' floating of the patella, renders the determination of the cause of the enlargement easy. There is no increase in surface temperature, except in one or two instances (Bylicki, Fridenberg), and no flushing or redness of the skin. The attacks occur with such regularity that in many cases the patients can tell, not only the day, but even the hour when the seizure will begin. As a rule the interval of freedom varies in different cases from eight to four- teen days ; thus in thirty out of thirty-nine recorded observations the intervals fell within these limits. The attacks themselves last in the majority of cases from three to five days. Out of twenty-seven observations twenty did not exceed these limits. The longest interval reported was three months, and the duration of the longest individual attack ten days. As to age, it may be said to be a disease of middle life, most of the cases occurring in patients from twenty to fifty years of age. Females are about twice as often affected as males. One or both knees are almost invariably involved at some period of the disease. In three of the cases it is not stated which joints were involved ; in one other the elbows alone were affected. In all the others the knees were implicated. Sometimes there is an alternation in the joints affected, one attack being of the knee, the next of the hip, and the third returning again to the knee, and so on. In two of the cases almost all of the joints in the body were in- volved, even those of the spine and fingers. A marked peculiarity of the malady is the strong ten- dency which it shows to spontaneous cessation of the attacks for periods varying from a month to many years, after which it recommences -without any assignable cause. The disease runs a very chronic course, several of the cases lasting from twenty to twenty-five years. Preg- nancy in almost all cases puts a stop to the attacks while it lasts. During only one out of nine recorded pregnan- cies was the patient afflicted. In several the attacks ceased at once at the beginning, and only one reappeared again a few weeks post partum. In no case is there any marked relation to the catamenia reported, though in a few cases the attacks first began at or about the time when menstruation became established. As to the nature of the affection, there is nothing defi- nitely known. That it is due to vaso motor disturbance is admitted by everyone who has been fortunate enough to have observed a case ; but whether this disturbance is due to micro-organisms, or is a mere neurosis, is at pres- ent undetermined. The evidence is but circumstantial in support of either theory. While it is true that several of the cases have occurred in patients subject to various nervous troubles, yet there are many more in persons having absolutely no hereditary tendencies in that direc- tion. Subjective symptoms, as a rule, are more prom- inent than objective in neurotic diseases, while here we find the objective far more in the foreground. Pain, as a rule, is only due to the distention of the joint, and there is none of that hypenesthesia so charac- teristic of hysterical joints. The argument that galvan- ization of the medulla has cured one or two patients is not of much force, as both the patients were taking arsenic at the same time, and one of them had had a period of freedom from attacks for four years, at an earlier stage of the disease, following the administration of Fowler's solution. It is a noteworthy fact that almost every case reported cured or improved had taken either quinine or arsenic, or both combined. Several of the cases had suffered from malarial poison- ing at some previous period, and two others at least were from a malarial region. In two cases the spleen is re- ported as enlarged, and in one of them the swelling sub- sided simultaneously with the improvement of the pa- tient under the use of quinine and arsenic. It would take us beyond the scope of this article to (SUPPLEMENT.) enter into the subject of periodicity in disease. There is no satisfactory explanation of it except in those cases dependent on micro-organisms, yet there is scarcely a disease which does not present more or less well-marked traces of it at times. Innumerable instances might be cited, but as there is a separate article on this subject in a preceding volume, to avoid repetition we may refer to it for a discussion of the various theories advanced and for illustrative cases. In typical cases there is no difficulty in the diagnosis, except that from its very rarity it is apt to be overlooked. Probably most of the cases are called rheumatism at one time or another, yet a very slight examination would show the swelling to be due to an effusion within the joints, and not extra-capsular. As regards prognosis, the chronicity and liability to remissions and relapses has been already mentioned. In one case the disease finally ran into chronic dropsy of the joint. In one there was some crackling in the joint, and in two a slight thickening of the capsule, noted. In all others, even after many years' duration, there were no signs of chronic changes in the joints. As would naturally be expected in so obscure an affection, the most diverse methods of treatment have been employed. The natural tendency of the disease to spontaneous remissions makes the proper estimation of any given method very difficult. However, quinine and arsenic enter into almost all reported cures. In my own case, whereas under 1he old rheumatic treatment the at- tacks always ran on through a period of several months, since she has tried arsenic and quinine she has found that she can always stop their recurrence after one, or, at most, two attacks. The tendency to relapse remains. Of seventeen cases reported cured, relieved, or im- proved, injections of ergotin, electricity, cauterization and fixation, sulphur baths, and injections of carbolic acid, have each one successful result. In all the others quinine and arsenic were the chief remedies employed, so that in any given case these should have the first trial. After these electricity would probably be more service- able than any of the other proposed remedies. Literature. Moore, C. H.: Trans, lied. Chir. Society, London, 1867, p. 21. Canonne, M.: These de Paris, 1867. Loewenthal : Berliner klin. Wochenschrift, 1871. No. 48. Bruns, Paul: Berliner klin. Wochenschrift, 1872, No. 1. Grandidler: Berliner klin. Wochenschrift, 1872, No. 22. Roser : Centralb. f. Chir., 1874, No. 25. Bylicki : Centralb. f. Chir., 1874, No. 38. Hueter : Klinik d. Gelenkkrankheiten, 1877, p. 188. Jousser : Art Medical de Paris, 1877, p. 85. Bejou: These de Paris, 1877. Panas : Bull, de la Soc. Chir. de Paris, March 27, 1878, and June 19, 1878. Panas : Progres Medical, 1878, p. 242. Verneuil : Bull, de la Soc. Chir. de Paris, March 27. 1878. Le Dentu : Bull, de la Soc. Chir. de Paris, March 27, 1878. Perrin : L'Union MAdicale, 1878, No. 61. Seeligmtiller : Deutsch Med. Wochenschrift, 1880, Nos. 5 and 6. Pletzer: Deutsch Med. Wochenschrift, 1880, No. 37. Kolbe : Deutsch Med. Wochenschrift, 1881, No. 4. Pierson : Deutsch Med. Wochenschrift, 1881, No. 7. Fiedler : Deutsch Med. Wochenschrift, 1881, No. 3. Kapper : Allgemeine Wiener Med. Zeitung, 1885. No. 31. Bosenbach: Centralb. f. Nervenheilkunde. 1886, No. 21. Nicolaysen : Norsk Magazin fur Laegevil., 1887, No. 2. Eschricht : Dissertation Kiel.. 1888. Fridenberg: N. Y. Med. Becord, 1888, vol. 33, p. 657. Brincken : Berlin, klin. Wochenschrift, 1889, p. 714. William Barnes. HYDROXYLAMINE. This compound base exists in the free state only in solution. It is ammonia in which one hydrogen atom is replaced by the hydroxyl group. The formula is NIL OH. Hydrorylamine hydrochloride, Nil, OH HC1, forms in colorless crystals resembling chloride of ammonium ; it is hygroscopic and very solu- ble in water, alcohol, and glycerine. It possesses active reducing powers, in consequence of which it has been suggested as a substitute for chrysarobin and other re- ducing bodies in the treatment of skin diseases. It has been used with success in psoriasis, parasitic affections, •and in lupus. It is a powerful poison to all forms of vegetable and animal life, but while proving effective 485 Hydroxyl ami lie. Hyoseiiie. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. in destroying the disease for which it is used, it is liable to produce toxic symptoms by its absorption and in- fluence on the haemoglobin of the blood. The salt should be kept in well-closed bottles in the dark, and when used, a solution of one part in a thousand may be prepared. The diseased part, previously washed with soap, is to be painted from three to five times a day. Beaumont Small. HYERES AND COSTEBELLE. In addition to the in- formation already given with reference to Hyeres (see Vol. III. of the Handbook); the following particulars may be of interest to physicians. The writer's residence at Hyeres was too brief to permit personal verification of all that is claimed for this Provencal winter station. But the testimony of Drs. Biden and Cormack, the resident English practitioners, agrees in all principal points. There is certainly no question that the winter at Hyeres is very mild, and were it not for the mistral, and com- parative dulness of the town, Hyeres would doubtless be quite as popular as Cannes and Nice. Formerly it (SUPPLEMENT.) those beyond middle life it is difficult to conceive a more suitable environment than Costebelle offers. The cli- mate of Hyeres is less exciting than that of Cannes and Nice " (Dr. Sawtell). " The chief attractions of Ilyeres are its climate and the beauty of its environs, which ren der it an agreeable place of winter abode, even for per- sons in health who do not require the animated move- ment and recreative resources presented by large towns, and who are in tolerable walking condition. The walks and rides, both on the plain and through the cork-tree woods, by which the hills are for the most part covered, present considerable variety, while from the more ele- vated positions charming prospects may be enjoyed " (Dr. Edwin Lee). The barometer is high and steady, But on the Riviera, as elsewhere, every winter varies in the rainfall and in the degree of cold ; and, therefore, it may happen that the traveller's experience will not agree with stereotyped meteorological tables. Dr. Cormack says {The Climatologist, January 15, 1892) that : " Hyeres is admirably suited to cases of phthisis. Should the disease be in its first period when Fig. 312.-View of Hyeres Looking North. was much more so. The table given on the next page is reproduced from the writer's description of Hyeres in the Medical Record, January 16, 1892, and is due to the courtesy of Dr. Biden, who specially prepared it. Synopsis of Meteorological Observations Taken at Hyeres.-The shade thermometers are placed in a Stevenson's screen. The screen stands in the open, com- pletely exposed all round, quite away from buildings and walls. If of an inch of rain is measured in the twenty-four hours it is considered a day on which rain has fallen. In regard to indications and contra-indications, the following opinions will suffice : " The winter climate of Hyeres and Costebelle is suitable especially for con- sumption, chronic bronchitis, asthma, heart disease, and rheumatism ; also Bright's disease, gout, incipient paraly- sis, and the feeble constitution of delicate children. In consumption, obviously, the disease is most amenable in its early stages. Nevertheless, remarkable instances have occurred of relief in advanced cases of a type quite un- suitable to Alpine climates. The occurrence of hemor- rhage is not a contra-indication to residence here. For the patient arrives, a complete cure may take place. The same result may be obtained with cases which have ar- rived at their second period, although the chances are less, but in any case a considerable improvement may be expected. When the disease has passed into the third period, or is too far advanced for any reasonable hopes of recovery to be entertained, life is prolonged for a time. " All chest complaints and bronchial affections im- prove under this genial climate. Liver complaints, affections of the kidneys, Bright's disease, diabetes, etc., are all favorably influenced by the warm and equable temperature. "Gouty and rheumatic cases get on very well here, and generally are much relieved after a winter or two's residence. This is only what would naturally be ex- pected when one bears in mind of what capital impor- tance a dry and warm climate is to such cases, and the great benefit they derive from out-door exercise, for which Hyeres offers special facilities, for there is hardly a day upon which an invalid is unable to get out for at least an hour or two, unless the nature of his complaint keeps him confined to his bed. 486 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Hydroxyl amine. Hyoscine. " Cases of anaemia and asthma also do remarkably well for the same reasons. " The invalid's day is comprised between the hours of 10 a.m. and 4 P.M. for the warmest months, and 11 a.m. to 3 p.m. when the days are colder. Naturally, special cases have to follow special rules; but no invalids, in any case, should go out until the sun is well risen, nor after sunset, as both before and after sunset the tempera- ture is many degrees below what it marks in the middle of the day ; it is specially dangerous for delicate per- sons and those having weak chests to go out after sunset, for there is invariably a very rapid fall in the thermom- eter at this time. A most useful precaution for all pa- tients is to be provided with a shawl when passing from the sun into the shade, as the difference of the two tem- peratures is very considerable. There are certain times, during the mistral, for instance, when invalids do well to keep within doors ; more particularly is this the case for those of weak constitution or nervous temperament." Finally, Drs. Biden and Cormack agreed in assuring the writer that Hydres is a healthy town. There is very little typhoid, no diphtheria or other zymotic diseases, and the foreign colony has nothing to fear, and has had nothing to regret at this delightful winter resort. Anae- mia and American neurasthenia should do particularly well there. About the only contra-indication for a win- ter's residence at Hyeres is furnished by recent neuroses, with a tendency to mania. (SUPPLEMENT.) move been made to provide accommodations for the in- creasing number of visitors. In addition to the two older hotels (selected for the Queen of England's residence in the spring of 1892), Costebelle has a third and quite modern hotel, called the Albion, which is in every respect a first-class family resi- dence. At the Albion good sanitary arrangements were found by the writer, and the other Costebelle hotels have been recently overhauled and made nearly perfect in this re- spect. Edmund C. Wendt. HYOSCINE. This alkaloid is present in other plants beside hyoscyamus niger, having been obtained from duboisia my oporoides and scopala carniolica. It is sup- posed to be identical with scopolamine, which is isomeric with cocaine and not with hyoscyamine ; it is also identi- cal with duboisine. Hyoscine, C17H23NO3, is a non-crys- tallizable body, but all its salts form in large, white prismatic crystals, freely soluble in water, insoluble in alcohol and ether. The salts also resemble each other in therapeutic as well as physical properties. The hy- drobromate, hydrochlorate, sulphate, and hydriodate are prepared. As a mydriatic it is rapid, energetic, and brief, but its action is readily maintained. During the administration of the drug its effect on the pupil is an early symptom. Dilatation is said to be more marked with a £ to | per cent, solution than with a one per cent, solution of atro- pine ; it has to be used with caution on account of the readiness with which the system is affected. Its sedative and hypnotic action has brought it into prominence, during the past few years, as a remedy in cerebral excitement and in the treatment of nervous dis- eases. In small doses it produces a stimulating action on the nervous centres, but in larger doses it is a powerful sedative. When given until its physiological action is produced, itcauses the pupils to dilate, and checks the secretion of the salivary glands and the action of the skin. On the heart it depresses the inhibitory nerves, and causes a weak and accelerated action of the pulse. Some observers have noted in the early stages a slowing of the pulse and an increase in the blood-pressure. It diminishes the irritability of the brain and nerve-centres, lessens to a slight extent the perception of pain, but does not affect tactile sensibility. Its toxic action is shown by the dilated pupil, rapid pulse, relaxed arteries, and red- ness of the surface, dry, hot skin, rapid breathing, and coma and convulsions. Hyoscine has largely supplanted morphine in the treat- ment of acute mania and delirium tremens, in restless- ness, and violence in all forms of mental disorders, and in hysteria and epilepsy. Its sedative action is very rapidly produced, and in the majority of cases a calm and refresh- ing sleep ensues. When pain is the cause of insomnia, it is not of much service. Its action is purely calmative and sedative on the brain, and it should not be adminis- tered as a powerful or decided hypnotic ; in insomnia it is only applicable in cases in which it arises from central or nervous excitement. In mania, and when there is much excitement, it should be given in full doses of grain by the mouth or T|F to grain hypodermically ; a small dose is generally sufficient. When the symp- toms are less acute, smaller doses should be given. Hyoscine has also proved itself very efficient in the treat- ment of chronic mania and all nervous affections accom- panied by mental restlessness ; also in nervous diseases characterized by debility and tremors, as in paralysis ag- itans, disseminated sclerosis, and chronic alcoholism. In these cases the stimulating action of small doses is taken advantage of, and of a grain daily or twice a day is a sufficient dose. Its antispasmodic action is also se- cured with the same small dose, and it may be used, and with benefit, in chorea, asthma, and other spasmodic troubles of a nervous origin. When cardiac disease is present the use of hyoscine should be avoided or given with great caution, on account of its depressing action on the heart and circulation. The early physiological effects of the drug are mani- r Nov... Dec ... Jan ... Feb ... March. April.. 58.7 Max. 61.4 55.5 55.8 56.5 59.8 63.3 Mean shade tempera- ture. Thermometers rw Min 45.8 40.5 39.3 40.6 42.3 47.2 registering and cor- recting. S 53.6 48.0 47.5 48.5 51.0 55.0 Mean daily shade tem- perature. 107.0 Mean. 106.5 9S.7 101.2 105.7 112.1 117.6 Solar radiation (black bulb in vacuo). 73.5 76.0 73.0 76.0 75.0 71.0 71.0 Relative humidity, daily mean. (Per cent.) s to to m ie hs O h- - Days of sunshine per month. oo 16 15 18 13 12 9 Days calm. w 11 9 11 15 16 Light to fresh. Day wi tO to >U 03 CO ce Ur Strong to a gale. ■s of nd, co -lO'O. OCM Days on which rain has fallen. 17.04 In. 3.52 2.86 3 08 2.21 2.26 3.11 Rainfall. The water-supply of Hyeres and Costebelle is moder- ately good. The water is very hard, however, and does not agree with everybody. The drainage is quite im- perfect, and the cesspools, which are in common use, may become sources of danger. In the writer's report, already alluded to, Costebelle is thus referred to : From the railway station of Hyeres it is but one mile of slightly up-hill wooded road to Costebelle. From the town proper it is two miles in a southerly direction. From Marseilles to Genoa, i.e., along the entire Western Riviera, or " le littoral," as the French call it, there are ever-changing and enchant- ing views. But in all this favored strip of land, so abun- dantly blessed with blue skies and health-giving sun- shine, I have found no prettier views than those which are enjoyed from the Costebelle hill-sides. Situated on the southern slope of an eminence appro- priately named Mont des Oiseaux, which effectually pro- tects it from that much-dreaded wind called " mistral," surrounded by forests of aged pines, oaks, and olive- trees, that richly clothe in different shades of green the adjoining hills on the north, east, and west, and with a southerly view over undulating woodlands, stretching out into a picturesque plain that ends abruptly at the Mediterranean Sea a mile below, Costebelle has been happily chosen as a site for a few first-class hotels. The late Duke of Grafton some years ago found it to be a site without parallel along the whole coast. He built a princely villa and made a road through the pines to serve it. But only within the last ten years has any 487 Hyoscine. Hypnotics. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) fested far in advance of dangerous symptoms, but in some cases very severe toxic symptoms have been pro- duced by doses of -fa and -/j grain. Pilocarpine and morphine are physiological antidotes. The former has proved very serviceable and may be administered freely, as much as two grains having been required in a case of delirium tremens in which a comatose condition followed frequent doses of hyoscine. Beaumont Small. HYOSCYAMINE. This alkaloid, formerly obtained solely from hyoscyamus niger, is now known to be the al- kaloid present in many other plants of the order solana- ceae, notably atropa belladonna, datura, stramonium, and scopola carniolica. It has recently been obtained from the common lettuce plant, lactuca satira.1 Professor Laden- burg demonstrated that atropine, daturine, and duboisine are identical with hyoscyamine, both in chemical consti- tution and physiological action. Any difference is to be found in the molecular arrangement of the constituents, and not in any fundamental change. The terms "atro- pine " and "hyoscyamine" have been applied to the heavy and light mydriatic alkaloids obtained from the belladonna and henbane plants, the former being the heavy and the latter the light alkaloid. It is now known that both the heavy and light alkaloids may be obtained from either plant, according to the process of manufac- ture. The light may be converted into the heavy by melting under reduced pressure, or by the addition of caustic soda to its alcoholic solution.2 Hyoscyamine, C17H23NO3, occurs in light, silky, snow- white crystals, without odor, soluble in one hundred and twenty parts of water, freely soluble in alcohol, and in acidulated water. There is also an uncrystallized or amorphous hyoscyamine, of a dark-brown extract-like mass, with a strong disagreeable odor. This appears to be a mixture of the various alkaloids and extractive mat- ters. A sulphate, hydrochlorate, hydrobromate, and hy- driodate of hyoscyamine are prepared ; they are alike in degree of strength and character, forming white, fine crystals very soluble in water. A sulphate and hydro- bromate prepared from the amorphous alkaloid are amor- phous, deliquescent salts, and less active and certain in their effects. The therapeutic properties of hyoscyamine resemble those of hyoscine, but since the introduction of the latter alkaloid it has fallen into disfavor. It was found to be less certain in its action, and its use was frequently ac- companied by unpleasant symptoms. It is employed as an hypnotic, nerve sedative, and antispasmodic, in mania, restlessness, delirium, insomnia, and all condi- tions accompanied by mental excitement, also in asthma, chorea, epilepsy, etc. The dose is somewhat larger than that of hyoscine, tJk to of a grain, which in some cases requires to be increased to | grain to obtain the desired action. The presence of the amorphous salts in the market is the source of much of the uncertainty of its action, and the cause of many of the toxic symptoms. The dose of these salts is much larger, being from J to 1 grain. Its mydriatic action is rapid and powerful, but not so manageable as atropine. Cases3 are reported in which it produced spasms of the ciliary muscle and intense pain and distress ; the solution used was J grain to the drachm, and relief was obtained by placing in the eye a stronger solution of the same alkaloid. Its toxic action is the same as that of hyoscine, viz., dryness of the throat and mouth, and of the skin, accelerated pulse, dilated vessels, and excitement followed by convulsions and coma. Beaumont Small. 1 The Lancet, December 26, 1891. 2 Extra Pharmacopoeia. 1892. 3 Therapeutic Gazette, March, 1892. HYPNAL. It is well known that a mixture of an- tipyrine and chloral results in the production of an oily fluid, which in time again crystallizes. Dr. Bardet (Repertoire de Pharmacie, April 10, 1890) made known the fact that when combined in certain proportions the compound possessed the therapeutic properties of its component parts ; to this product he gave the name of hypnal. It may be prepared by mixing a solution of 47 grammes of chloral hydrate in 50 c.c. of distilled water, with a solution of 53 grammes of antipyrine in 50 c.c. of distilled water, pouring into a separating funnel, and drawing off, after an hour, the oily-looking fluid from the aqueous layer. At the end of twenty-four hours the liquid will have solidified to a mass of rhombic crys- tals.* The salt is colorless, odorless, soluble in five or six parts of water, being less soluble than either chloral hydrate or antipyrine. Bardet found it very useful as an hypnotic and anal- gesic. He employed it in twenty-two cases, and found it to produce sleep as readily as chloral hydrate, and where pain was present marked relief was at once secured. He also found it act very beneficially in producing sleep when the cause was a spasmodic cough. It has not the bitter taste nor the disagreeable effect on the stomach of its constituents, and secures its desired effect in compar- atively small doses. No ill effects have followed its use, but in some instances where it has failed to produce sleep it has given rise to increased restlessness. It is easily taken by children on account of its freedom from taste. The dose is from seven to fifteen grains for adults. It may also be given hypodermically in the same quanti- ties. As an enema it will also produce its effect in doses of thirty grains. Beaumont Small. H YPN ONE (Acetophenone). Chemically this com- pound is methyl-phenyl-ketone, CeH5CO CH3. It has long been known, but its therapeutic properties were studied and demonstrated by Dr. Dujardin-Beaumetz and Dr. Bardet, in 1885, at which time it was given the shorter name of hypnone. They considered it a very valuable hypnotic, even superior to chloral and par- aldehyde, particularly in the insomnia due to alcohol- ism. Dose, two to four drops. It is a colorless liquid, sp. gr. 1.032. At 57.2° F. it solidifies into a mass which persists to a temperature of 60° F. It is volatile and its odor is very penetrating, recalling that of the oil of bit- ter almonds. It is not soluble in water nor in glycerine, but is soluble in alcohol, ether, and oil of sweet almonds. It has a sharp, almost caustic taste, and requires to be given well diluted or with the oil of sweet almonds, in capsules. Further employment of this drug has not supported the views of its discoverers. Its action has proved un- certain, and it is not of any service when the sleepless- ness is due to pain. It is only indicated in primary and nervous insomnia, when other soporifics have failed. A further objection to its use is its disturbing effects on the digestive organs and its ill effects on the blood. The following conclusions are formulated by Kamensky: (1) Hypnone enfeebles sensibility and diminishes the re- flexes ; (2) moderate or large doses produce a slight sleep resembling natural sleep when the drug is introduced directly into the blood ; (3) it increases the heart-beat, probably by stimulating the accelerator centre of the heart ; (4) in moderate quantities it increases respiration, but large doses paralyze it ; (5) it depresses arterial press- ure by paralysis of the vaso-motor centre and enfeeble- ment of the heart's energy ; (6) moderate and large doses diminish the excitability of the cerebrum, while all quantities increase the excitability of the spinal cord ; (7) it reduces the oxyhaemoglobin of the blood ; (8) it diminishes temperature by increasing heat dissipation. Beaumont Small. HYPNOTICS. Numerous chemical products have lately been found to produce sleep, and have been tried as hypnotics in cases of insomnia. Most of them proved uncertain and disagreeable in action ; a few, however, especially chloralamide, sulphonal, and amylene hydrate, have been found to act with much certainty, and without * It may also be formed by shaking together concentrated solutions in the above proportions, the crystals being deposited, if the chloral be in excess, the crystals form in prismatic needles. 488 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Hyoscine. Hypnotics. markedly affecting the functions of circulation and res- piration. In some respects they seem to be superior to the old, well-known hypnotics, and hence will probably come into general use, and occupy a prominent place among the standard remedies for insomnia. Chlor al amide, or Chloral-formamide.-Chloral- amide was introduced in 1889, by Professor Von Mering, as a substitute for chloral in cases of insomnia in which the influence of chloral on the organs of circulation should be avoided. He supposed that the formamide, contained in chloralamide, would effectually prevent the depressing action of chloral. Chloralamide is prepared by mixing molecular weights of chloral and formamide, that is, 147 parts of anhydrous chloral and 45 parts of formamide. The liquids combine and form a crystalline solid, as represented by the follow- ing equation : C Cl3 COII + TICONIL = C Cls CH (Oil) IICONII chloral formamide chloral-formamide Chloralamide is in the form of white, lustrous crystals, having a bitter taste, but no odor. It is slowly soluble in 20 parts of water, and in 14 part of alcohol. It de- composes in hot water having a higher temperature than 60° C. ; so also in alkaline solutions, but not in di- lute acids. Physiological Action.-Chloralamide does not irri- tate the mucous membrane of the stomach, and is not affected by the gastric juice. After absorption it is slowly decomposed by the alkaline blood into chloral hydrate and formate of ammonium. The latter is produced as follows : HCONH, + HaO = NH4CHO2. Consequent- ly, the action of chloralamide is that of chloral hydrate, modified by the rate of its decomposition in the blood, and possibly by the presence of the formate of ammo- nium. The experiments made upon animals have yielded somewhat discordant results, not as to the influence of chloralamide on the brain, but as to its action on the or- gans of circulation and respiration. Von Mering,1 Kny, and others noticed no fall of blood-pressure in rabbits under the influence of hypnotic doses of chloralamide ; Laanggaard,2 on the contrary, observed decided lowering of blood-pressure, although this effect supervened more slowly than after chloral hydrate. Upon man chloralamide acts like chloral, except that it produces sleep less rapidly and less certainly. As a rule, after doses of 2.0 to 3.0 (thirty to forty-five grains) sleep ensues in half an hour, and continues from five to eight hours. During the sleep, the functions of circula- tion and respiration are performed as vigorously as in normal sleep. After awakening the patient presents no disagreeable after-effects. Numerous deviations, however, from this ordinary ac- tion have been observed, depending chiefly upon the causes of the insomnia. Thus, in cases of intense excite- ment of the brain, of severe pain, of harassing cough, and of high fever, doses of 2.0 to 3.0 have failed to pro- duce sleep, and sometimes even 4.0 (sixty grains) have been ineffectual. Often, even when the causes of insom- nia were not intense, sleep did not supervene before an hour, sometimes two hours, and in rare instances even three hours. In some cases of heart disease,3 especially in v.alvular disease with imperfect compensation, a very decided depression of the circulation has been observed. So, too, in typhoid fever a very unfavorable effect upon the pulse was noticed after 2.0 (thirty grains) given in divided doses. Generally, after-effects do not occur, or they are very trivial, consisting of headache, slight giddiness, a feeling of fatigue, and skin eruptions. From the above it is evident that chloralamide closely resembles chloral in action, but that it induces sleep more slowly and less certainly, and that it is less apt to depress the circulation. The differences seem to be due to slow and gradual liberation of chloral in the blood, although it is not improbable that the presence of the formate of ammonium may somewhat modify the action of the chloral on the organs of circulation. The variations in the rapidity of action doubtless result from differences in the rate of decomposition in the blood of different persons. Therapeutic Uses.-Chloralamide is a suitable hyp- notic in insomnia not caused by intense excitement of the brain, very severe pain, or extreme dyspnoea. When severe pain causes insomnia, chloralamide alone is not very efficient, but it acts well if given together with a moderate quantity of morphine. In the insomnia associ- ated with mild nervous excitement, with neurasthenia, and with somatic diseases in general, moderate doses, from twenty to thirty grains, are usually effectual. Such moderate doses having frequently failed in cases of in- tense mental excitement and severe pain, larger doses, as much as one drachm, have been recommended ; but it should be recollected that such large doses may cause dangerous depression. Even moderate doses should not be given in cases of heart disease, if the heart's action be very feeble, or if symptoms of inadequate compensation be present. In no case should the dose be larger than the corresponding dose of chloral hydrate. Chloralamide contains 77 per cent., and chloral hydrate 89 per cent., of anhydrous chloral. Chloralamide may be prescribed as follows : (1) R. Chloralamid., 9ij.-3j. ; Aq. dest., § ijss. ; Acid, hy- drochi. dil., gtt. v. ; Syr. rubi idaei, f ss. M. S.: One half to be taken before retiring. (2) $. Chloralamid., 3 j. ; Spir. frumenti, Syr. rubi idaei, aagss. M. S.: One tablespoonful shortly before retiring. Sulphonal.-The properties of this hypnotic have been described in this Handbook, Vol. VIII., p. 499, and need not be repeated here. Sulphonal has been extensively used in the last four years. The results obtained by clinicians, who have had ample opportunities for observing its effects, may be summed up as follows : 1. In doses of 1.0 to 2.0 (fifteen to thirty grains) sul- phonal is a very reliable hypnotic in simple nervous in- somnia ; but in such doses it often fails in the insomnia caused by cough, pain, and dyspnoea. Large doses,4 however, will generally produce satisfactory sleep ; but their action is often followed by disagreeable effects, and in heart disease by serious depression of the circulation. 2. Sulphonal continues to act in the same dose for a long time. In some cases it has been found that, after one dose had acted well, sleep would take place spon- taneously on the subsequent night. It has frequently been observed that a moderate dose, 1.3 (twenty grains), would on the first night act only for a short time, but, when repeated on the following night, cause prolonged, refreshing sleep. Cases 6 have been reported in which moderate doses had been taken for months, at first nightly, and afterward several times a week, with a sat- isfactory result, and without any apparent injury. 3. Some observers have noticed cumulative effects ; moderate doses, repeated once in twenty-four hours for some weeks without ill effects, suddenly produced very grave phenomena, such as vomiting, prostration, and ataxia. Doses of 1.0 to 2.0 (fifteen to thirty grains) given repeatedly for several days, have in a few instances caused weakness, staggering, grinding of the teeth, diffi- cult articulation, and severe giddiness. In one case 20.0 (three hundred grains) taken within a week, caused se- vere vertigo, great restlessness, confusion of mind, loss of memory, and clonic spasms.6 4. The prolonged use has in some instances been fol- lowed by serious disease of the kidneys, and changes of the blood.1 The urine had a dark-red color, and con- tained much coloring matter, albumin, and tube-casts. Some of the patients died from heart-failure. The doses were moderate, usually from 1.0 to 2.0 daily. Amylene Hydrate,-C6IL2O.-Dimethyl-ethyl-car- binol (ClDaCoHsCOH. Amylene hydrate is a limpid, volatile, neutral liquid, having a peculiar, spicy odor, and a pungent taste. It is soluble in eight parts of water, and readily mixes with alcohol, ether, chloroform, glycerine, and fixed oils. It boils at 99° to 103° C. Its sp. gr. is 0.815 to 0.820. Physiological Action.-Professor Von Mering8 investi- gated the action of amylene hydrate in experiments upon 489 Hypnotics. Idiopathic Anaemia. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. animals. In rabbits, doses of two to three grammes in ten to twenty minutes produced sound sleep, which con- tinued from six to eighteen hours. In dogs, proportion- ate doses were followed in half an hour by sleep, which lasted from ten to eighteen hours. During the sleep no notable change took place either in respiration or in cir- culation. No lowering of blood-pressure was found when the narcosis was so deep that all the reflexes had disap- peared. Moderate doses acted chiefly upon the cere- brum ; but large and toxic doses affected also the spinal cord and the medulla oblongata ; first the reflexes ceased, then the breathing stopped, and finally the heart stood still. In man moderate doses cause prolonged refreshing sleep, without affecting the heart, the respiratory ap- paratus, or the alimentary canal. Poisonous doses pro- duce symptoms resembling those of alcoholic intoxi- cation-deep, long-continued sleep, with complete sus- pension of motility, sensibility, and reflex action ; dila- tation of the pupils ; slow, irregular, superficial breath- ing ; slow, small pulse, and lowered temperature. No cases of death from amylene hydrate have been re- ported. Therapeutic Uses.-Having observed the genial action of amylene hydrate upon animals. Von Mering tried it clinically in cases of insomnia. To 60 patients affected with sleeplessness he gave 350 doses. After doses of 3.0 to 5.0 (forty-five to seventy-five minims), sleep en- sued within half an hour, and continued from six to twelve hours. Only four times was the hypnotic action unsatisfactory. No disagreeable incidental effects oc- curred, and only one patient complained on the following morning of slight headache. When the sleeplessness was due to pain, amylene hydrate did not act well ; but the simultaneous administration of a small quantity of morphine rendered the action satisfactory. No devia- tion from the normal condition took place in the func- tions of respiration and circulation, and in several cases of heart disease with insomnia, quiet sleep resulted with- out any disagreeable effects. Von Mering supposed that 2.0 of amylene hydrate act as strongly as 1.0 of chloral hydrate, and 3.0 of paraldehyde. A very thorough trial of amylene hydrate was made at Professor Jolly's psychiatric clinic in Strasburg.9 To 80 patients 1,050 doses were given. Small doses, 1.6 to 2.6, were at first used in all cases; if a satisfactory re- sult was not obtained, the dose was increased until the maximum, 4.8 to 5.0, was reached. Generally sleep ensued in from five to twenty minutes ; in excited and restless patients, in twenty to thirty minutes ; and in the maniacal, in one-half to one hour. During the sleep the pulse and breathing were normal in all cases. The sleep was less sound and protracted after small than after large doses, and the patients were awakened by the slightest touch, as when the pulse was counted ; but this rarely occurred after large doses. No injurious incidental ef- fects were observed. The digestive tract was never disordered, and only two or three times did nausea or vomiting occur. The appetite was not diminished, and the action of the bowels not disturbed. In very rare instances patients complained on the following morning of slight headache or throbbing in the head ; but in those cases the general condition was disturbed by the primary psychical disease. Free perspiration at the beginning of the hypnotic action occurred in a few patients. Amylene hydrate has been used to a considerable ex- tent as a hypnotic in hospitals and insane asylums. The reports from these institutions have in general fully corroborated the observations of Von Mering, and of Jolly, of Strasburg. The dose of amylene hydrate is 2.0 to 4.0 (thirty to sixty minims), preferably in aqueous solution, with ex- tract of glycyrrhiza, syrup of orange, or syrup of rasp- berry as corrigents. The maximum dose of the Ph. G. is pro dosi 4.0, and pro die 8.0. It may be prescribed as follows: (1) !}• Amyleni hydrat., 3 jss. ; Aq. dest. § ij. ; Extr. glycyrrh., 3 ij. M. S. : One-half to be taken at bedtime. (2) IJ. Amyleni (SUPPLEMENT.) hydrat., 3 jss. ; Aq. dest. 3 jss. ; Syrup, rubiidsei., | ss. M. S. : One-half to be taken at bedtime. Samuel Nickles. REFEBENCES. 1 Chloralamid, ein nenes Schlafmittel, von Dr. Eugen Kny, Therap. Monatsch., 1889, p. 345. 3 Ueber einige nene Schlafmittel, von Dr. A. Laanggaard, Ther. Monatsch., 1889, p. 461. 3 Zur klinischen Wuerdigung des Chloralamids, von Dr. A. Robinson, Deutsch, med. Wochenschrift, 1889, No. 49. 4 Beitrag zur Sulfonalwirkung, von Dr. Joachim, Ther. Monatsch., 1889. p. 226. 6 Ueber Sulfonal, von Dr. M. Steiner, Therap. Monatsch.. 1889, p. 459. 8 Ein Fall von Sulfonalintoxication, von Dr. Joachim Battenberg, Therap. Monatsch., 1891. p. 648. 7 Ueber das chemische Verlialten des Harns nach Sulfonalintoxication, Therap. Monatsch.. 1892. p. 39. 8 Das Amylenhydrat, ein nenes Schlafmittel und dessen Anwendung in der Medicin, Therap. Monatsch., 1887. p. 249. 9 Ueber die Verwendbarkeit des Amylenhydrat als Schlafmittel, ins besondere bei Geisteskranken, Therap. Monatsch., 1887, p. 329. HYSTERIONICA BAYLAHUEN, H. B. A perennial plant belonging to the order of Compositae-Synantherese, and closely allied to Grindelia robusta. It is indigenous to Chili and is remarkable for the resinous exudation with which all its parts are covered. It contains a brown, odorous, acrid resin, and an essential oil. No alka- loids have yet been separated. It has a local reputa- tion as an anti-diarrhoeic remedy, and has been used with success in chronic dysentery and the diarrhoea of phthisis. The action of this plant has been studied by G. Bailie (Bull. Gen. de Therap., February, 1889). He found it very serviceable in all the diarrhoeas of wasting dis- eases, particularly in phthisis. He recommends that an aqueous solution be prepared, 1 part to 150 of water, as the alcoholic preparation is not of any value in these troubles. Dr. H. Gilbert (Therap. Gazette, January, 1891) has used the fluid extract'in various forms of chronic diarrhoea, and always found it serviceable. He employed the fluid extract in doses of ten minims every six hours, and continued its use for a prolonged period. No bad effect followed its use in any of his cases. He used the tincture in lung diseases, and found that it lessened the secretion and cough, and did not irritate the stomach. The large quantity of aromatic resin which it contains has led to its use in bladder troubles and dis- eases of the urinary passages. It lessened the pain of micturition in cystitis and rendered the urine clearer and purer. Beaumont Small. ICHTHYOL. This compound is obtained by the dis- tillation of a bituminous mineral deposit of Tyrol, which contains an abundance of the fossil remains of fish and other marine animals. During the dry distillation there passes over, between 100° C. and 225 C., a crude vol- atile oil. This is treated at 100° C. with an excess of concentrated sulphuric acid, which forms ichthyo-sul- phonic acid, and this is precipitated by the addition of concentrated brine. The product contains a certain pro- portion of the unchanged oil, which cannot be removed without producing decomposition of the whole com- pound. Ichthyo-sulphonic acid forms salts with ammonium, sodium, lithium, zinc, and mercury, but the ammonium salt is the one preferred and generally understood by the title of ichthyol. Ammonium ichthyol sulphonate, CssHaeSgOe (NH4)2, is a clear, thick, brownish liquid with a smoky bituminous odor and taste. It is soluble in water, in a mixture of alcohol and ether, in glycerine, oils, and fats. Experiments on animals show that it does not possess any toxic properties, and but one instance is recorded where very distressing symptoms followed the application of one part ichthyol to two parts of glycerine, to the curetted surface of the uterus. The patient com- plained of the taste of the drug, tachycardia and general depression came on, and the patient remained prostrated for twelve hours. The symptoms were supposed to be due to absorption of the ichthyo-sulphonic acid through the abraded surface of the uterus. The therapeutic value of ichthyol depends upon three 490 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Hypnotics. Idiopathic Anaemia. factors : its reducing property, its antiseptic action, and a contractile effect which it exerts on the vascular system. It was introduced by Dr. Unna, of Hamburg, in 1883, as a remedy for the treatment of various forms of skin disease. Its use has since been greatly extended, and it is very generally used, both externally and internally, in a great variety of diseases. Unna described it as the remedy par excellence against acne, the pustular as well as the papu- lar form. He advises fifteen drops internally twice a day, and a ten per cent, lotion to be painted on at night ; each day the part was to be bathed with hot water and ichthyol soap. In rosacea it was equally beneficial, but in eczema, or in either of the above skin affections ap- proaching eczema, it had to be used cautiously and more mild applications employed. He also recommended it in lichen, urticaria, intertrigo, erythema, furunculus, burns, and innumerable other forms of skin disease. In ecze- mas he found benefit from the internal use of ichthyol and mild soothing applications. Subsequent experience has confirmed the value of this remedy in nearly all forms of skin diseases, including eczema and all forms of eczematous inflammations. Externally it is employed as a lotion of the strength of ten or twelve per cent., or as an ointment with lanoline or other base. Dr. Unna has re- cently advised the preparation of varnishes, which he considers the most suitable way of applying the remedy : Ichthyol, 40 parts ; starch, 40 parts ; solution of albu- min, 1 to 1| part ; water, to 100 parts. The starch is first moistened with the water, the ichthyol is then added, and lastly the albumin. For surgical purposes he uses : Ichthyol, 25 parts ; carbolic acid, 2.5 parts ; starch, 50 parts; water, 22.5 parts ; the ichthypl and carbolic are dissolved in the water, warmed, and when cool the starch is added. These varnishes may be applied and remain on the parts until the next application, and are easily re- moved by water. A more important addition to the therapeutic value of ichthyol has been its employment in erysipelas. Klein found that in dilute solutions it arrested the develop- ment of the bacilli of erysipelas, and when used in the treatment it shortened the attack by one-half. The parts should be carefully washed and an ointment of equal parts of vaseline and ichthyol applied ; where the surface affected was extensive a weaker application was used-ichthyol, lanoline, and water in equal parts. The applications should be thoroughly rubbed in two or three times a day, and continued for five or six days, when the redness and inflammation will be found thor- oughly removed. In using the application the clothes and bedding should be protected. This drug has not been employed to any extent in general surgery, although it has been recommended as a dressing for wounds, abscesses, and ulcers, in which it undoubtedly possesses a beneficial action. Unna advises the use of the pure, undiluted ichthyol for such purposes. In gynaecological disorders it is much used, and reports of its success are numerous. In chronic forms of para- metritis and perimetritis, with exudations and adhesions, inflammatory conditions of the ovaries and tubes, cervical erosions, vaginal catarrh, it causes a lessening of the con- gested condition, and promotes absorption of the inflam- matory products. In no instance has it produced any un- favorable symptoms, and as a wash and tampon it may be used without danger. It may be used with glycerine, one to twenty, as a tampon, with lanoline in equal parts, or a ten per cent, solution in water may be used as a wash. It is also given internally, which assists the ac- tion of the typical application in promoting absorption. On account of its success in gynaecological practice, it has been employed in inflamed conditions of the pros- tate, a ten per cent, solution being injected into the anus three or four times a day. It appeared to have a very favorable action on the inflamed gland, and in forty cases in which it was used, no abscess occurred in any case. It was advised as a remedy in rheumatism, particularly in the form due to gonorrhoeal infection, but experience has not proved it a success. An ointment is rubbed in the affected joints, and five to twenty minims are taken (SUPPLEMENT.) internally each day. At the meeting of the Fourth In- ternational Congress, Dr. Unna read a paper pointing out the value of ichthyol in the treatment of leprosy. He presented the following conclusions: (1) Lepra tu- berosa, even of universal extension and more than one year's standing, can be cured ; (2) the cure can be ef- fected in a comparatively short time by the energetic in- ternal and external employment of the reducing reme- dies ; (3) among them may be specially recommended ichthyol, chrysarobin, pyrogallol, and resorcin. Of these ichthyol is the only one that can be administered inter- nally, without danger, for any length of time, and con- sequently is a remedy of great importance. The appli- cation advised is an ointment of ten parts ichthyol, seven parts lard, and oil, three parts. Internally, fifteen to twenty-four minims may be taken daily. In addition to the diseases enumerated, it may be ad- ministered internally in all conditions in which'there is hypersemia and capillary dilatation. It in no way dis- agrees with the patient, although at first it may give rise to disagreeable eructations of gas ; this, however, does not persist. It does not cause any irritation of the mu- cous membrane, but has been found beneficial in all forms of chronic gastric and intestinal troubles. The dose for a child of two years of age is about two minims daily ; for adults, from five to twenty minims daily. It is usually administered in pills or in capsules. Beaumont Small. IDIOPATHIC AN7EMIA.-Much study has been given to idiopathic anaemia since the publication of the Refer- ence Handbook. Its clinical characteristics, particu- larly those of the blood, have been more sharply defined, but there is still a lack of entire agreement as to its patho- geny. The most important papers which have appeared in recent years are those of Hunter, Russell, and Macken- zie. The blood changes in idiopathic anaemia are, with few exceptions, such as may occur in any grave chronic anaemia, but in the former they are more varied and reach a more intense degree. A very important charac- teristic is the amount of haemoglobin present ; the whole amount is diminished, but, as compared with the greatly diminished number of red blood-corpuscles present, the haemoglobin is relatively increased. Again, there is great variation in the size of the red blood-corpuscles, the average size probably being larger than normal. The number of nucleated red blood-corpuscles varies, and as they are found in other anaemic conditions their presence alone is not significant ; but the occurrence of a considerable number of nucleated cells of large size (gigantoblasts) is regarded by Ehrlich and his followers as almost diagnostic of idiopathic anaemia. The leucocytes of idiopathic anaemia are diminished in number, the proportion of small mononuclear cells (lymphocytes) being increased, and that of multinuclear cells diminished. Minute examination of the blood requires that cover- glass preparations should be made, and the blood stained. For this method we are indebted largely to Ehrlich. The cover-glasses should be perfectly clean, and to avoid soiling or moisture it is advisable to use forceps. A satisfactory solution for staining is the fol- lowing, suggested by Dr. W. S. Thayer :1 Sat. aqueous sol. of orange G 2 Sat. aqueous sol. of methyl green.... 6.25 To be added, drop by drop, while shaking the solu- tion : Water 15 Alcohol 10 Glycerine 5 The cover-glass preparations of the blood are first fixed by immersion in equal parts of alcohol and ether, or, what is better, by heating them at a temperature of 212° F. or a little higher ; but they should not be kept at that temperature more than an hour. They are then stained in the solution mentioned for from two to five 491 Idiopathic Anaemia, lull uenza. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. minutes, washed in water, dried, and mounted in oil or balsam. " The red cells are stained orange or buff, the nuclei of the colorless corpuscles green, the neutrophilic granules violet or lilac, the eosinophilic granules a deep red. The nuclei of the nucleated red blood-cells are stained an intensely deep green, almost black." As regards the pathology of idiopathic anaemia, Hunter's investigations seem to show conclusively that haemolysis is at least the largest factor in idiopathic anaemia. He, by the way, looks upon pernicious anaemia as a special disease, and as a distinct variety of idiopathic anaemia. Hunter found the most constant anatomical change to be a large excess of iron in the liver. He concludes that: "In pernicious anaemia the seat of disintegration is chiefly the portal circulation, more especially that por- tion of it contained within the spleen and the liver, and the destruction is effected by the action of certain poi- sonous agents, probably of a cadaveric nature, absorbed from the intestinal tract.'' Griffith and Burr2 reach essentially the same results as Hunter. W. Russell believes that the blood is defective before it reaches the liver, and that this explains the increased liver haemolysis. As regards treatment, it is important to keep the stom- ach and bowels in a healthy condition. Washing out the stomach is a rational procedure, and is reported to have cured one case (Meyer). The bowel should also be kept free from putrefactive changes by laxatives and antiseptic agents. Dr. G. A. Gibson,3 adopting Hunter's suggestion, employed /3-naph- thol in two-grain doses three times a day in a case of per- nicious anaemia. Apparent cure resulted. The jB-naph- thol is best given with salicylate of bismuth, to prevent intestinal disturbance. Hunter prefers farinaceous and fatty foods to meats. Of internal remedies, arsenic is unquestionably the best. It should be given in as large 'doses as can be borne ; some patients have been able to take as high as twenty to thirty minims of Fowler's solu- tion at a dose. Inhalations of oxygen have also proved helpful. J. II. Musser. i Boston Medical and Surgical Journal, February 16 and 23, 1893. 2 Medical News, Philadelphia, 1891, lix., 445-450. 3 Edinburgh Medical Journal, October, 1892. ILFRACOMBE. A popular sea-side resort and cli- matic station in North Devonshire, England. Ilfracombe is situated near the mouth of the British Channel, and is surrounded by peculiar picturesque heights called " tors.'' The climate is bracing, but not mild and equa- ble. It is less rainy, however, than at Torquay. The sanitation of the place is good. The rate of mortality is only about seventeen per thousand per annum. Accord- ing to Black (" Watering Places of England "), Ilfracombe is "a good-sized seaport town, formed principally by one main street, about a mile long, running parallel with the sea-shore, and a harbor (formed by an inlet of the Bris- tol Channel), which is almost encircled by picturesque verdurous heights or tors. It is remarkable for a pecu- liar form of coast, rarely to be met with elsewhere in England. Beginning with the harbor of Ilfracombe it- self, the land and sea together combine in making con- stant alternations of high, craggy, furze-crowned tors, in some cases almost overhanging the sea below, which precipitately break and give place to little bays or inlets, separating and varying what would otherwise be a con- tinuous line of cliffs-thus allowing glimpses of the in- land foliage beyond." The bathing facilities are good, but there are no sands fit to stroll on. One of the features of the beach is a peculiar vaulted passage leading to two coves, one for ladies, the other for gentleman bathers. Interesting ex- cursions abound in this section of Devon. The height of the season is from July to October. Ilfracombe is about six and a half hours by rail from London. Edmund C. Wendt. (SUPPLEMENT.) IMMUNITY, ARTIFICIAL. As will be seen from the article " Artificial Immunity" (p. 51), in Ehrlich's experi- ments upon the transmission of immunity, this observer found that immunity in the father has no influence upon the offspring : the offspring of a highly immune father are just as susceptible as those of a highly suscepti- ble father. Immunity can only be transmitted by the mother, and this takes place in two ways : by intra- uterine transfer of immunity from the mother to the fretus, and by extra-uterine transfer with the mother's milk. Moreover, the milk of an immunized animal will not only give immunity to the offspring of the animal herself, but can also be used by feeding or by subcuta- neous injection to render other animals immune. Now, since the article above referred to was cast, and conse- quently after it was too late to make any additions, there have appeared two publications : one on the transmission of immunity by the male, and the other upon the varia- bility in the immunizing power of the milk of an immu- nized animal. The first of these articles' goes to prove that in hydrophobia a male dog does transmit immunity to his offspring ; this is in striking contrast to Ehrlich's results. It was shown that in rabies highly protected male dogs in two out of three cases transmitted a high degree of immunity to a part of a litter (two out of five in one case, and two out of four in the other). In the third case, where there were four puppies, there was no evi- dence of transmission at all. In those cases where im- munity was transmitted the puppies resisted the inocu- lation of the spinal cord from a case of "street-rabies" under the dura mater. Animals died of hydrophobia in the check experiments. The three remaining puppies of' the first experiment, and all four of the third, died of hy- drophobia on subdural application of spinal cord from a case of street hydrophobia. The two puppies which died in the second experiment took the disease from inocula- tions under the dura with the " virus fixe," a more power- ful virus than that of the street. The fathers of each of the litters of puppies were different, but all three were highly rabies-proof. The mothers were all normal, i.e., not rabies-proof. The small number of these observations and the con- flicting results necessitate substantiation before the trans- mission of immunity from rabies by the male can be accepted as proven. The other publication 2 referred to above gives the re- sults of further tests of the power of the milk from the goat, which was given immunity from tetanus during and after gestation (mentioned under " Artificial Immu- nity " on p. 51). It shows that the power of the milk is subject to considerable fluctuation, depending upon the length of time that may have elapsed between the inocu- lation of the goat and the making of the tests. Some time after the goat had been inoculated it was found that its milk had 4,000 degrees immunizing power. The goat was then inoculated with 75 c.c. of a virulent tetanus culture, and showed no symptoms ; but tw'enty-four hours after this inoculation the milk showed that its immuniz- ing power had fallen to 1,000, and further tests showed that it remained at 1,000 for a day and then gradually rose, attaining a value of over 8,000 in eighteen days. It then gradually fell to below 4,000 in seventeen days, where it remained stationary. The explanation given of this behavior is that at first some of the antitoxin contained in the milk had to be used to counteract the poison contained in the virulent culture injected into the animal, and this was followed by an over-production of antitoxin. In other words, it is an analogous process to the over-production of leuco- cytes following extensive destruction of these. Other processes of a similar nature are often met with in bio- logical investigation. In testing the value of the milk or blood-serum of a goat made immune from tetanus, it is seen from the above that the test must be made at least four or five weeks after the last inoculation, otherwise the result will not be uniform. The antitoxin contained in the milk was obtained in a concentrated state by precipitation with ammonium 492 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES, (SUPPLEMENT.) Idiopathic Anaemia. Influenza. sulphate, dialysing in running water, and drying in vacuo at 35° C. There resulted a yellowish-white powder pos- sessing powerful antitoxic properties. Meade Bolton. 1 Tizzoni und Centanni: Die Vererbung der Immunitat gegen Rabies von dem Vater auf das Kind, Centralbl. f. Bakt., etc., Bd. xiii., No. 3. a Brieger und Ehrlich : Beitrage zur Kenntniss der Milch-immunisir- ter Thieve, Zeitschr. f. Hygiene, etc., Bd. xiii., No. 2. INFLUENZA. Influenza is an acute, self-limited, in- fectious fever, occurring in widely distributed epidemics, and characterized by catarrhal inflammation of the re- spiratory and gastro-intestinal mucosa, by profound ner- vous disturbances, and by extreme debility. Synonyms.- Febris Catarrhalis ; Epidemic Catarrhal Fever ; La Grippe ; Grip ; Tac ; Horion ; La Dando ; Ziep ; Epidemischer Husten ; Epidemischer Schnupfen ; Schafhusten ; Blitz Catarrh ; Mbdefleber ; Mal Russe ; Snufsjuka (Swedish); Qual-Tong (Chinese). Many other synonyms, grave and humorous, might be listed which have been suggested by the peculiarities of various epidemics, the national characteristics of the people affected, or some fancied resemblance of the symp- toms, but influenza, la grippe, or the Anglicised grip, have practically superseded all other names, in medical as well as lay circles. Influenza is of Italian origin, and was probably first employed by the Italian savants to indicate the supposed occult influence of the stars over the course of the disease. Wolff states that it was first used by an Italian author, Gagliardi: " Parere sopra 1'Influenza catarrale, che pre- sentamente regna in Roma e stato ecclesiastico, Roma, 1733." Other authorities, however, trace its origin to the Eng- lish writers Pringle and Huxham, the latter of whom, in describing the epidemic of 1742-43, writes : " Quae per totam Europam hoc vere sub nomine influenza grassata est." The derivation of la grippe is likewise in doubt. Most authors refer its origin, and probably correctly, to the French, agripper-to seize, but others derive it from the Polish, chrypka, or grypka-hoarse. It came into general use in France during the epidemic of 1732 (Marigne : Description et traitement d'une affection catarrhale epidemique observee en 1732, vulgairement appellee la Grippe, 1776). Historical Sketch.-Since the appearance of the fourth volume (1887) of this Reference Handbook, containing the brief article on Influenza, a series of epi- demics has swept over the world, which, for rapidity of movement, extent of distribution, and numbers affected, rival any previous visitations of the disease. This series, which began in the fall of 1889, and which can hardly yet be spoken of as an event of the past, was the first general epidemic of la grippe since 1847-48, and really introduced the present generation of practitioners to a disease known to them only in history, and thus becomes one of the notable medical events of the latter half of the century. Recurring at a time when the study of the infectious diseases was being pushed so zealously along bacterio- logical lines, and engaging in its study the ablest clinicians of every nation, it was confidently predicted that the mysterious problem of its nature and etiology would be speedily solved. While this prediction has not been ful- filled, our knowledge of epidemic influenza has been materially increased and necessitates a restatement here. In this necessarily brief historical sketch we shall not attempt a complete chronological account of the epi- demics of all ages but shall only allude to those which, from special incidents, mark an era in the progress of our knowledge, and endeavor to trace somewhat in detail the course of the recent epidemics of 1889-92. Medical historians have interpreted the vague utter- ances of Hippocrates and Livy, referring to a disease which assumed epidemic proportions in 412 b.c., as the first written allusion to influenza. Mention is made of an epidemic which prevailed ex- tensively in the latter part of the sixth century, in which the prominent symptoms were headache, debility, cough, and an irresistible desire to yawn. Sneezing was usually the first symptom of the prevailing distemper, and the custom of calling down " God's blessing " upon one who was heard to sneeze is said to have originated at this time. It is very probable, as maintained by many authors, that not a few of the general epidemics described in the earlier medical chronicles under various names (catarrhal fever, Italian fever, etc.), were epidemics of true in- fluenza. Parkes traces the disease back to the ninth century. In 827 and 876 epidemics in which cough was the most prom- inent symptom, and which also extended to domestic animals and birds, originated in Italy and spread rapidly over all Europe. The epidemic of 876 is said to have sadly discomfited the victorious army of Charlemagne on its return march from Italy. But one epidemic, and that limited to Germany and France, is known to have occurred in the tenth century, after which the world apparently enjoyed immunity for about two hundred years. Whatever may have been the nature of these early epi- demics, our positive knowledge of influenza, according to Wilson, dates from the great visitation of 1510, which covered the whole of Europe and the British Islands, and was so general that " not a single family and scarce a per- son escaped it." The epidemic of 1557, which appeared suddenly in Eastern Asia and spread rapidly to the West, was the first influenza epidemic which is known to have crossed the Atlantic to America. This pandemic was very severe in certain localities and was attended with a high mortality. Five thousand are said to have died in Delft alone within a short period. During the past four hundred years there have been about seventy epidemics of grippe, one-half of which, from their widespread prevalence, deserve to be called pandemics. The present century has experienced thirteen visita- tions ; the last important one previous to 1889 was that of 1847, in which were stricken more than one-quarter of the population of London and Geneva, and fully one-half that of Paris. The course of the later epidemics has been quite uni- formly from east to west. It is, of course, only the general trend of the epidemic that can be followed, since every locality invaded becomes at once a new centre from which arms of infection reach out in every direction. With few exceptions, the later pandemics of influenza originated in Eastern Asia, where the disease may almost be said to be endemic. From this nidus they travelled westward across Russia, thence over Continental Europe and the British Isles, over the ocean to America, Aus- tralia, East Indies, until, like Puck's girdle, they circled the globe. The epidemic of 1889-90 followed closely the beaten path. The first cases, of which we have knowledge, oc- curred in Bokhara, Central Asia, in May, 1889. The dis- ease became quite prevalent in July, and following the lines of the new railways slowly invaded other portions of the Russian Empire. The epidemic can be easily traced through Western Siberia and the post-towns and stations in Russia in its march toward St. Petersburg, which was reached by the end of October, and two weeks later it had assumed such startling proportions in that city as to attract the atten- tion of the civilized world. From St. Petersburg the epidemic spread with unpre- cedented rapidity, and the cities of Western Russia, Cen- tral and Northern Germany, Austria, France, and the British Islands became, in turn, the scene of its ravages, until by the end of December it had compassed the whole of Europe. Scattering cases announced the appearance of the disease in New York about the middle of December, and a week later it had assumed epidemic proportions. From the seaboard it extended in every direction, and during January, 1890, was generally diffused over the United States, British North America, the Sandwich Islands, and Central America (Guatemala.) 493 Influenza. Influenza. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. From its starting-point in Central Asia the epidemic also extended in a southeasterly direction. Malta, Cy- prus, and Egypt were successively visited in January and February. It was reported from India in February, be- came epidemic in March, and prevailed extensively in Upper and Lower Birmah during April and May. It reached Arabia in April, many of the pilgrims arriving from India and the Straits having sickened on the voy- age. In the Southern hemisphere the course was from the south northward. Capetown was the seat of its first appearance in Africa, it having been carried thither by steamers ; thence it extended northward, reaching Mau- ritius in August, the Shire Highlands in September, and Abyssinia in November, 1890. South America was reached in February. Buenos Ayres was infected presumably by steamer from Bor- deaux ; thence it travelled up both coasts and prevailed in Brazil, Chili, and other States during April and May. It was notably severe in the province of Pernambuco. It was prevalent in Australia and New Zealand from March to July. In Iceland it occurred in July, and in some remote places of China and Kashmir during September and De- cember. Dr. Parsons, in his exhaustive report to the British Medical Association, July, 1891, to which we are largely indebted for the facts above related, writes : " Thus as- suming the epidemic to have started from Russia in Octo- ber, it took about six weeks or two months to spread over Europe and reach North America, rather more than two months to reach the Cape, three months to reach South America, four months to reach India, five months to reach New Zealand and Australia, nine months to reach Iceland, ten months to reach Mauritius, and nearly a year to make some remote places in Africa and Asia." During the summer and fall of 1890 influenza was " smouldering on," as shown by the numerous local out- breaks, usually of short duration, indifferent parts of the world. The second general epidemic-1891-began in Janu- ary, and was but little less extensive, and probably more fatal, than the one just sketched. It, too, was pandemic, but in the journey around the world the course of its predecessor was reversed, and the general trend was from west to east. The origin of the epidemic is traced to New Orleans, where influenza prevailed extensively and fatally in Jan- uary, and from which it radiated in every direction. During February, March, and April it spread over the Northern States and was notably severe in Pittsburg and Chicago (March) and the sea-board (April). It was re- ported from England in April, from Germany in August, from Scandinavia and Denmark in July, from Russia (St. Petersburg) in September, from France in October, from Italy in December, and thus passed from country to coun- try until almost the whole civilized world had been revis- ited. This epidemic also ran its course in about one year. Nature and Etiology.-It has been customary to consider influenza as an epidemic catarrhal fever, but recent denouements have materially strengthened the be- lief, long entertained by some, that it is really an infec- tious nervous fever. Many of the symptoms are most readily explicable upon a neural basis, while its probable bacterial origin, together with the knowledge of the toxaemias that usu- ally attend upon bacterial infection, gives support to such an explanation. Much testimony has accumulated during the recent epidemics to show that the nervous symptoms are primary and are followed by secondary involvement of the respiratory and digestive organs. In a given case the pulmonary, gastro-intestinal, or cerebro- spinal symptoms predominate as the nervous apparatus of one or the other system bears the brunt of the disease. Nervous symptoms are uniformly present and usually pronounced, even in the mildest forms of grippe, while, on the other hand, in many of the worst cases, catarrh of the mucous membranes and inflammation of the re- spiratory tract are totally absent. (SUPPLEMENT.) Again, when catarrh and pneumonia are present, they frequently assume " such a peculiar character as to lead to the suspicion that they might arise from irritation of, or loss of power in, the various nervous mechanisms supplying the affected parts, and would therefore have to be looked upon more as vaso-motor and trophic neuro- ses than as ordinary catarrh and inflammation." The histories of the various epidemics prove clearly that the disease is not dependent upon climate, soil, sea- son, meteorological, or electrical conditions. It affects all classes of people, irrespective of nationality, sex, so- cial position, or environment, although infants and young children seem to possess partial immunity. While no season of the year is exempt, late autumn and early win- ter are the periods of its greatest frequency. The phenomena of influenza are only comprehensible upon the theory of a specific infecting virus or germ as the exciting cause. Its epidemic occurrence, transmis- sion along lines of travel, rapid diffusion, sweeping over whole continents in a few weeks, and affecting nearly the entire population in a certain district in a few hours after its appearance, indicate some powerful morbific agent in the atmosphere which acts specifically upon the animal economy. Some authors still cling to the theory that the morbific agent is a miasmatic material, but the most generally ac- cepted doctrine, and the one most in accord with our knowledge of the etiology of other infectious diseases, is that which makes it dependent upon the presence of a micro-organism. Notwithstanding the diligent search of bacteriologists during the past three years, working under the improved modern technique, but little is positively known about the morphology of the pathogenic bacillus and absolutely nothing about the chemical constitution of its special toxine. These investigations have uniformly disclosed the presence of the pyogenic bacteria and the diplococcus pneumoniae, but it is not claimed that they bear a causal relation to the disease. From time to time the discovery of the grippe microbe has been announced. But, like Weichelbaum's lancet- shaped diplococcus, Klebs's flagellatum, Jolly's cossack- shaped coccus, Kirschner's punctiform microbe, and Babes's radiated bacterium, each, in turn, has failed in the crucial test and has been relegated to obscurity, along with Saulsbury's infusoria and Seifert's micrococci. It is again confidently announced that the true in- fluenza bacillus has been, at last, successfully and in- dependently demonstrated by Staff - Surgeon Richard Pfeiffer and Dr. Canon, of the Moabit Hospital, Berlin. According to these observers, it is a tiny rodlet of about the thickness and half the length of the bacillus of mouse- septicaemia. It is the smallest bacillus yet isolated, and is only recognizable during the first twenty-four hours by means of a lens, so that macroscopically a test-tube containing them can scarcely be distinguished from a sterile one. The bacilli are, however, readily differ- entiated by the peculiarity of their growth, as the colo- nies always remain separate and do not, like the colonies of all other species of bacteria, join together and form a continuous row. They have been found in large numbers in the blood, sputum, bronchial, and pleural exudations of influenza patients. Dr. Kitasato has successfully cultivated the bacillus in glycerine-agar to the sixteenth generation. Inoculation experiments have been negative in some species of ani- mals (guinea-pigs, pigeons, mice), but in others, notably monkeys and rabbits, have caused a disease simulating grippe in its main features. Letzereich, of Wiesbaden, has quite recently published an account of control ex- periments in fifty cases of infectious diseases, viz., mea- sles, scarlet-fever, diphtheria, pneumonia, and catarrhal affections of the respiratory passages, in which in neither blood nor sputum was the Pfeiffer-Canon bacillus found. Corroborative testimony comes from others high in authority like Professors Babes and Cornil, and even Koch himself is said to have given a partial endorsement to the claims made. It is premature, in the face of the dis- 494 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. lull ueiiza. Influenza. appointments of the past, to give a positive opinion, but at present it looks as if the Pfeiffer-Canon-Kitasato bacillus were indeed the true pathogenetic microbe of epidemic influenza. Should this be confirmed it will add another to the brilliant triumphs of the present decade. It is highly probable that the action of the morbific principle of grippe is not limited to man. Epizootics, very similar in many respects to the epidemics in the human race, have often prevailed among domesticated and wild animals, especially horses, dogs, and cats. The attention of the profession was first called to this fact by Huxham in connection with the epidemics of 1732-33. These epizootics occur independently, but more often happen either simultaneously with, or im- mediately precede or follow, epidemics of influenza. Bartholow favors the view that the epidemic disease in animals is the parent of that in man, but is so modified by transition that each succeeding epidemic is milder and less aggressive. The contagiousness of influenza has long been a mooted question. The doctrine that contagion is one method of its propagation has been strengthened by numerous ob- servations made during the recent epidemics and is now fully accepted by most clinicians. The frequency with which epidemics, both in their general and local distributions, follow the regular lines of travel, the immunity of isolated households and com- munities, and the frequency with which local outbreaks have been traced to their sources leave, indeed, little room for scepticism. The marvellous rapidity with which influenza sometimes spreads in a community once in- fected is readily accounted for by its remarkably short period of incubation. It is claimed by many that per- sonal contact with infected individuals or materials is the only method of its propagation. The supporters of this doctrine contend that the dissemination of disease- germs through the air must have its limitations. That they can be carried thousands of miles in air-currents without dispersion or destruction, or the assumption, on the other hand, of a proliferation in the air itself, does violence to our knowledge of the life history of disease- germs. There are, however, too many irregularities in the behavior of grippe epidemics, not necessary to be enumerated here, to permit us to accept personal con- tact as the only factor in its propagation. Hirsch has pointed out that notwithstanding the modern facilities of inter-communication and rapid transit, epidemics do not travel more rapidly now than under the old regime. The passengers and crews of ships which have sailed from non-infected ports, and have held no communica- tion with other ships, have been repeatedly attacked in mid-ocean. The following striking instance is related by Sir Thomas Watson: The frigate Stag anchored at Berry Head, on the Devonshire coast, all on board well, April 3, 1833, the very day on which Watson saw his first two cases of influenza in London. The breeze was off the land, and in half an hour after dropping anchor forty men were down with influenza ; six hours later the number was increased to sixty, and soon reached one hundred and sixty. The period of incubation is very variable, both in in- dividual cases, and in different epidemics. It may de- velop almost immediately after exposure, from which it has received one of its popular names, Lightning Ca- tarrh, Blitz Catarrh, but, in other instances, there is an incubation period, lasting from a few hours to several days. The attack does not confer immunity from subsequent ones, and a few persons even experience a second seiz- ure during the same epidemic. An epidemic, as a rule, lasts from four to eight weeks in a given locality, al- though many run a shorter course and often end as sud- denly as they began. The rate of progress not only varies greatly in different epidemics, but also in the same epidemic as it spreads over different districts. There is no causative relation between influenza and other epidemic or infectious diseases. The statement that prevalent infectious and contagious diseases abate in (SUPPLEMENT.) frequency and intensity upon the appearance of grippe, is not sustained by facts. Neither is there any ground for the popular belief that cholera follows in the wake of influenza. In some instances, notably in 1831, 1847, and 1856, the two diseases have been closely associated in point of time, but the official report of the French Com- mission fully endorses the conclusion of Ghige and Smo- lensky that the association was purely accidental. Morbid Anatomy.-The anatomical lesions found after death give meagre information as to the pathology of influenza. A fatal termination is almost invariably due to some complication, and the structural changes found post mortem are characteristic of the secondary dis- ease, and not of influenza. Death rarely occurs in un- complicated cases. The lesions peculiar to influenza are almost exclusively localized upon the respiratory mucous membrane. The mucous lining of the larynx, trachea, and bronchial tubes is hyperaemic, swollen, and covered with frothy or viscid muco-pus. The catarrh may ex- tend to the finer bronchi, but is ordinarily limited to the trachea and larger tubes. The bronchial glands are some- times enlarged and softened. The gastric and intestinal mucous membrane is more or less congested in a consid- erable portion of the cases. The solitary and agminate glands of the intestine are not usually implicated. Kernig, of St. Petersburg, found the spleen enlarged in all cases which came under his care. Symptoms.-The complexus of symptoms of influenza is exceedingly varied, and this variability extends not only to different epidemics, but also to individual cases of the same epidemic. In many cases the attack closely resem- bles an ordinary catarrh, with little fever and slight hy- persemia of the naso-pharyngeal mucosa ; again, it as- sumes the form of an intense infectious fever, with pro- found involvement of the nervous centres, while between these extremes are found cases of almost every grade of severity, and almost every combination of symptoms. Many attempts have been made to satisfactorily classify the protean forms of the disease. The classification most generally followed by recent writers, and which is a mod- ification of that long ago proposed by Hufeland, is into : 1. The nervous form. 2. The catarrhal or respiratory form. 3. The gastro-intestinal form. It is estimated that in the recent epidemics about fifty- five per cent, of the cases belonged to the nervous, thirty per cent, to the catarrhal, and fifteen per cent, to the gas- tro-intestinal form of the disease. These estimates will undoubtedly have to be changed for different localities. According to the observation of the writer, nervous symptoms predominated in about eighty-five per cent, of the cases in the epidemic of 1889-90, while in that of 1891, the catarrhal and gastric forms were more com- mon and severe, but still constituted a small percentage of the cases. The division is, however, purely arbitrary, and finds its chief value in emphasizing the fact that the brunt of the attack may fall upon any one of the three great systems. Influenza usually begins abruptly, but is occasionally preceded by a feeling of indisposition or malaise of from a few hours' to several days' duration. A distinct chill, or, oftener, a mere chilliness, is at once followed by a rise in temperature and the symptoms of a naso-pharyngeal catarrh, with cough, sore throat, frontal headache, pains in, and general soreness of, the limbs, depression of spirits, and sometimes with gastro-intestinal disturb- ances. The fever is remittent in type, variable in intensity, rarely exceeds 104° F. in uncomplicated cases, and sub- sides by lysis, rather than by crisis. As a rule, the tem- perature reaches its maximum at the beginning or early in the attack, and often drops below normal during con- valescence. A subnormal temperature has also been noted by many during the progress of the disease, accompanied, usually, by surface coldness, feeble circulation, and other evi- dences of depression. The recent epidemics were pe- culiar in the large number of cases in which the fever 495 Influenza. Influenza. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) took on a continuous type, and persisted for two or three weeks, resembling, in many of its features, a mild ty- phoid fever. Anomalous cases were also recorded in which the whole course of the disease was afebrile, and, according to Eichhorst, these were particularly liable to nervous explosions. The pulse is moderately increased in frequency and changeable in rhythm and quality. The tendency to cardiac asthenia, so pronounced in grave cases, often be- comes a serious menace in those of moderate severity. An extraordinary slowing of the pulse is sometimes ob- served. The pulse may only register in the forties or fifties and naturally excites fears of some cerebral com- plication. This abnormal retardation belongs to the natu- ral history of the disease, although it is often erroneously attributed to remedies, especially if digitalis or other car- diac sedatives have been administered. Coincidently with the fever, and sometimes preceding it, the symptoms of an acute catarrh of the upper air- passages are manifested. There are frequent paroxysms of sneezing, a feeling of stuffiness in the head, the eyes are suffused and watery, and coryza with an abundant secretion of mucus speedily follows. The mucous membrane of the nose, mouth, frontal sinus, pharynx, and larynx is congested. The voice becomes hoarse or reduced to a whisper. Cough is rarely absent, usually severe, and recurs in paroxysms which harass the patient day and night. At first it is harsh and brassy and attended with a scanty muco-serous expectoration, which, as the disease progresses, becomes abundant, muco-purulent, and often blood-streaked. Sharp pains in the sides and under the sternum, dysp- noea, and suffocative paroxysms are experienced, and, as was long ago pointed out by Graves, of Dublin, often without any recognizable intra-thoracic lesion. The ca- tarrhal process does not, as a rule, extend below the larynx or trachea, but if it should invade the lower air- passages, the deepening of the symptoms at once an- nounces the fact, and the illness assumes a more serious aspect. depression. When thoroughly under the grippe influ- ence, the patient shrinks from mental as he does from physical exertion, is vacillating, foreboding, and often becomes a veritable " Jacques " in his melancholy. While restlessness and wakefulness characterize most epidemics, others are equally marked by somnolence. Thus the remarkable epidemic of 1712 is known as the steeping sickness, from the almost universal presence of this symptom. The disturbances of the digestive organs are gener- ally mild and consist of anorexia, coated tongue, epi- gastric tenderness, abdominal pains and constipation. Nausea and vomiting sometimes usher in the attack and may continue throughout its course. At times, the force of the disease is expended in the intestinal tract and causes severe colicky pains, tympanites, and obstinate diarrhoea. The stools, at first bilious and fetid, soon take on a dysenteric character or become large and wa- tery, like the discharges of cholera nostras, and are ac- companied with vomiting, leg-cramps, and rapid prostra- tion. The digestion remains impaired for some time after the subsidence of the acute symptoms, and not only retards convalescence, but favors a return of the gastro-intestinal derangements upon the slightest indis- cretion of diet. The urine is scanty, high-colored, and contains abun- dant urates. Albumin with casts, hyaline and epithelial, are present in a limited number of cases not necessarily of the gravest type. The integrity of the kidneys is rarely permanently impaired. Cystitis is sometimes met with, and retention of urine in elderly persons is tolera- bly common. The presence of an hemorrhagic tendency has been re- marked by many observers. Epistaxis and menorrhagia are the most, and cerebral hemorrhage the least common of the accidents dependent upon this tendency. Eruptions are occasionally seen, of which herpes, urti- caria, and erythema constitute the chief examples. The disease attains its height on the second or third day and then rapidly declines, covering a period of from four to seven days in its full evolution ; but in the graver cases, or in those disturbed by complications, recovery may be indefinitely delayed. Convalescence is often announced by the appearance of some critical discharge, such as profuse sweating, a copious secretion of bronchial mucus, a free discharge of sedimentary urine, or a profuse diarrhoea. After complete apyrexia has ensued, there is not infre- quently a temporary return of the fever and other symptoms not dependent upon the presence of a compli- cating disorder. This new outbreak is usually of brief duration, and should be considered as an exacerbation, rather than a relapse. It is apt to appear on the fifth or seventh day of the disease, and is oftenest seen in those who have committed some error of diet or have under- gone some exposure. True, relapses are, however, not uncommon or free from danger. Complications and Sequels.-While there has been, of late, a tendency to exaggerate the frequency and importance of the complications and sequelae of in- fluenza, the fact remains that there is scarcely another disease so liable to intercurrent disorders or to serious after-effects. The more common of these are divisible into two groups : First, those which are the direct out- growth of the lesions in the mucous membranes and par- enchymatous tissues ; and, second, the sensory-motor de- rangements, which result from the action of the grippe toxine upon the cerebro-spinal centres. Among the rarer affections belonging to the first group may be mentioned circumscribed ulceration of the vocal cords, abscess of the larynx, oedema of the glottis and paralysis of the muscles of the throat. Otitis media is comparatively common. The inflam- mation does not, as a rule, proceed to suppuration, but is rebellious to treatment and occasionally ends in mas- toiditis. Bronchitis and pneumonitis are, by far, the most fre- quent and fatal complications of this group. Authors Nervous symptoms are uniformly present, but vary greatly in intensity. In some epidemics, notably in 1889-90, they predominated over all other symptoms. Se- vere headache, usually frontal, and pain in the eyeballs are rarely absent. The head pain comes on suddenly, is nearly continuous, dull, and throbbing, with frequently recurring paroxysms of atrocious severity. It is exagger- ated by pressure or movement, and is often associated with hyperaesthesia of the scalp and neck. With the headache there is stiffness and soreness over the entire body, as if it had been beaten, and a backache which in its intensity is suggestive of dengue or small- pox. The patient either lies perfectly quiet, to prevent the suffering which the slightest movement causes, or tosses restlessly about in the futile effort to find a position of comfort. Sharp neuralgic pains dart along the principal nerve-trunks, but show a decided preference for the tri- geminal, intercostal, lumbo-abdominal, and sciatic nerves. These neuralgias are often intermittent, but do not ex- hibit the periodicity of ordinary malarial neuralgias. Persistent insomnia or unrefreshing snatches of sleep filled with painful dreams add to the patient's distress. Delirium of a mild type is usually present, and is often marked when the fever is slight. In exceptional cases it becomes so furious as to overshadow all other symptoms. Coming on late in the disease it often announces the on- set of some complication. Vertigo, especially on rising, and muscular tremor are not uncommon. Convulsions and coma are rare, but may develop with the initial fever or at any subsequent period. The extreme muscular weakness, amounting, at times, to a serious depression of the vital powers, is a peculiar feature of influenza. The debility is wholly dispropor- tionate to the amount of fever, or the severity of the other symptoms, and generally reaches far into convalescence. The mental condition harmonizes with the physical 496 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Influenza. Infl uenza. have endeavored to show that these affections, when asso- ciated with influenza, are peculiar in nature and symp- tomatology. According to Elliott " the grip-lung has a long and very varying condition of passive blood-stasis unaccompanied by rales. If resolution occurs within three or four days, it is accompanied by large mucous rales, and no time is given for the slow appearance of bronchial breathing or bronchophony ; but during the long-continuance of the blood-stasis an exudation occurs, increasing slowly, which will give in time some broncho- phony and bronchial breathing, but never so complete as in pneumonia. Resolution never occurs in these cases with the suddenness that characterizes it in acute pneu- monia. The condition passes off as gradually as it is formed. The sharp, clear-cut, and sudden phases of the pneumonia attack separate it clearly from the obscure, irregular and slow phases of the grip-lung." Da Costa, in a recent clinical lecture, describes the characteristic influenza lung as one " in which intense congestion occurs, with patches of collapse and with spots of localized consolidation here and there, if consolidation happen at all. Yet there are instances in which real croupous pneumonia takes place, involving considerable portions of the lungs. But these are comparatively rare, and true lobar pneumonia is not nearly so characteristic of the influenza lung as the other fovm." Osler, with whom the writer is in full accord, admits that pneumonitis complicating influenza sometimes runs an atypical and very obscure course, but these cases are exceptional, and all the anomalies mentioned by writers as peculiar to influenza are found in any large series of cases of pneumonia. It is highly important to bear in mind what has been previously stated, that lung complications are liable to creep on insidiously, and that in the presence of anoma- lous symptoms, whether referred to the respiratory tract or not, the chest, as a matter of routine, should be care- fully interrogated. Pleurisy and empyema are not un- common complications. Abscess of the lung has been noted. That influenza bears an etiological relation to phthisis pulmonalis, especially in the presence of the disposition, can no longer be doubted. It is furthermore a matter of common observation that consumptives fare badly during the prevalence of the epidemic influence. Watson and Curtin call attention to the fact that dur- ing the recent epidemics many chronic catarrhal cases where the lungs were involved resembled closely, and were often mistaken for, phthisis. There were present night-sweats, cough, diarrhoea, fever, and emaciation, while the physical signs also agreed with those of phthi- sis in all but dulness on percussion, which was absent. These writers in speaking of the relationship between phthisis and influenza make the following remarkable statements: "The catarrhal condition remains and causes a breaking down of lung-tissue. These cases, while presenting the physical signs of phthisis and ter- minating finally in death, showed during life, on exami- nation of sputum, no bacilli. In the fall of 1890, in the Philadelphia Hospital, the sputa of fourteen cases of phthisis examined (several times and by different meth- ods) for bacilli showed them abundant in four, few in six, absent in four cases. In the fall of 1891, after most of the old cases of phthisis had died, twelve out of twenty-eight cases were found free from bacilli, and in- variably with histories dating from an influenzal at- tack." The nervous disturbances which occur during and after grippe are equally important. Althaus reflects the opinion of neurologists in the statement : " That as a powerful etiological factor of protean forms of nerve-disease influenza stands facile princeps among all infectious fevers. " The organic nervous diseases most frequently observed may be enumerated in the order of their frequency, as neuritis, meningitis, myelitis, and cerebritis. Multiple neuritis is less common than the local forms, of which latter neuritis of the supra-orbital, intercostal, and sciatic nerves are of tenest met. But "isolated neu- ritis of almost every cranial nerve has been recorded with such resulting conditions as optic atrophy, loss of smell and taste, ophthalmoplegias, both internal and external, oculo-motor, facial, bulbar and pseudo-bulbar palsies of various types, including true pneumogastric paralysis " (Mills). Lepto-meningitis (pia-arachnoid) and cerebro-spinal meningitis are the commonest types of meningeal inflam- mations. Bristowe has reported two cases of cerebral abscess, and has seen others in which the symptoms would jus- tify such a diagnosis. Convulsions have been repeatedly observed, and, in a few instances, the epileptic habit has been permanently established. Mills has seen two cases. Polio-myelitis anterior is the form of spinal cord dis- ease most frequently associated with influenza. Tem- porary paralysis of one or more limbs, evidently of spinal origin, is occasionally seen. Abolition of the patellar reflex has been noted. Neuralgic attacks, severe, persistent, and involving any of the nerve-trunks are, perhaps, the commonest of the post-influenzal neuroses. The rekindling of old and fading neuralgias during convalescence is another of the curious features of the disease. Neurasthenia, both cerebral and spinal, hysteria and hystero-epilepsy, with their illimitable repertory of dis- ease mimicries, were frequent sequels in the late epidem- ics. Insanity is not rare. It usually takes the form of melancholia, with hypochondriacal or religious delusions and decided suicidal impulses. Leledy, Ladame, and others believe that influenza may act either as an excit- ing or as a predisposing cause, but that there is always an antecedent acquired or inherited predisposition. The on- set is often sudden and bears no relation to the severity of the febrile attack. The insane are less disposed to contract grippe than the sane, and its occurrence is sometimes attended by a remission in the mental symp- toms. Althaus also recognizes as a rare post-grippal neurosis a peculiarly rapid-galloping-form of general paralysis of the insane, of which he has seen a few ex- amples. Biermer, Gottschalk, and others remark upon the fre- quent occurrence of severe hemorrhagic endometritis. In these cases the uterus is enlarged and sensitive, and the hemorrhage profuse. It has long been known that women sick with influenza were subject to profuse and painful menstruation, and, on the other band, that the menses were apt to return to those suffering from amenorrhcea. Pregnant women are liable to abort un- der the same conditions. Prognosis.-Uncomplicated cases of influenza re- cover. The prognosis is modified somewhat by the character of the prevailing epidemic and the physical condition of those affected. The extremes of life and those debilitated by disease or vicious habits bear influ- enza badly. Infants are fortunately less likely than adults to contract the disease. The mortality is largely due to complications or to its development in those suf- fering from advanced pulmonary, cardiac, or renal affec- tions. Diagnosis.-Influenza is not likely to be mistaken in its epidemic form. The numbers affected, the fever, the catarrhal phenomena, the prominence of the nervous symptoms, and the rapid course will readily establish the diagnosis. Influenza bears a striking resemblance to non-specific catarrh caused by atmospheric changes, but it is only in those isolated cases which herald the ap- proach of an epidemic that this similarity could mis- lead . The only difficulty in diagnosis attaches to those cases occurring during the prevalence of an epidemic of grippe in which coryza is absent and the symptoms are those of a general fever. Some of these cases bear a striking re- semblance to typhoid fever. The continued fever, de- lirium, epistaxis, diarrhoea, and prostration are common to both, but the temperature charts and progress of the diseases are very dissimilar. In other cases the suddenness and violence of the on- 497 Influenza. Insanity. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) set, the variety and intensity of the nervous symptoms, and the irregular febrile movement are very like epi- demic cerebro-spinal fever. Dengue and the nervous type of influenza have many symptoms in common, but the former is preeminently a disease of tropical climates. In our own country it is con- fined to the Gulf States and rarely extends beyond the thirty-second parallel. Only once (1780) has it reached as far north as Philadelphia. It was at that time described by Dr. Rush under the name of bilious remitting fever. Treatment.-Influenza is a self-limited disease of short duration. There is no specific and the treatment is largely symptomatic. In view of the many severe com- plications and sequehe which may arise, every case should be regarded as serious enough to necessitate confinement, at least within doors, until the fever has disappeared. The experience of the late epidemics demonstrated that those who remained in bed from the beginning of the illness not only appreciably shortened the attack but made a pleasanter convalescence. Rest in bed, a mild calomel purge or saline draught, cool- ing drinks, an occasional Dover's powder to quiet cough, and the employment of such general hygienic and die- tetic measures as are indicated in acute infectious diseases will meet every indication in simple, uncomplicated cases. In the futile search for a specific all of the leading reme- dies, new and old, received an extensive trial in the recent epidemics. The coal-tar derivatives-acetanilid, antipy- rin, and phenacetin-were all extensively used, but phe- nacetin, from its greater safety and the absence of un- pleasant after-effects, deservedly enjoyed the greatest popularity. Given early in the attack, it rarely failed to relieve the headache, lower the temperature, and lessen the muscular soreness and tired feeling. The writer ob- tained excellent results from its combination with quinine or salol and caffeine. Salicin is an eligible remedy. It acts as a mild tonic, reduces temperature, excites perspiration, and relieves the gastro-intestinal irritation. Its taste is objectionable. Quinia in medium-sized doses may be advantageously given throughout the sickness but is especially indicated in the later stages and in delayed convalescence. When the head pain and muscular soreness are prominent the salicylate of cinchonidia is preferable to quinia, and is supposed to possess decided prophylactic powers. The insomnia, as a rule, readily yields to the bromides or chloralamid. The singularly depressing effects of grippe on the mental and physical powers strongly contraindi- cate the use of lowering measures and remedies. Stimu- lants, preferably some form of ammonia or alcohol, should be resorted to on the first evidence of failing strength. In the presence of great thoracic distress or heart-failure a timely use of the heart tonics, of which digitalis and caffeine are the best representatives, may avert the threatened danger. Strychnine alone, or in combination with tonics, is the most reliable drug with which to tone up the feeble heart so often left by grippe. Gastro-intestinal irritation is best met with salicin, bis- muth, resorcin, and the salicylates. Local applications to the inflamed mucosa add greatly to the patient's comfort and favorably influence the course of the disease. In the writer's experience nothing gives such grateful relief as the occasional spraying of the throat and nose with a weak solution (one to two per cent.) of cocaine and menthol in benzoinol. A gargle of boracic acid or salicylate of soda in glycerine and water soothes the irritation of the mouth and throat. Dobell's solution in the form of spray, or the inhalation of steam, pure or medicated, with eucalyptus, creasote, or terebene, is of signal benefit in allaying the laryngeal and bronchial irritation. Troublesome cough is readily controlled by the old-fashioned Brown's mixture, or by small doses of codeine in syrup of wild cherry. In the graver types of influenza, or when the course is anomalous, care must be taken not to overlook compli- cations, which often, especially those of intra-thoracic origin, steal on insidiously. These must be managed according to the principles of treatment laid down on other pages of this Handbook. Delayed convalescence will call for a prolonged course of tonics, and, in many cases, for a temporary change of climate. Little has been attempted in the way of prophylaxis. It has, however, been lately proposed, on account of its probable contagiousness, to isolate those suffering from the disease and to close the schools and places of pub- lic resort during an epidemic. But the volatile nature of the pathogenous material and the remarkable rapidity with which influenza spreads- its whole career from inoculation to full development being only a matter of hours-will doubtless render abor- tive all attempts at quarantine. It has been abundantly proven that during the preva- lence of the epidemic influence those who are over- fatigued or much exposed in the open air, especially at night, are more susceptible to the disease. The lesson to be drawn from this fact is obvious and should be heeded by the aged and debilitated. Considerable testimony has been recently collected to show that vaccination with animal lymph furnishes im- munity against influenza. Dr. Goldschmidt, of the Island of Madeira, was the first to call attention to this fact. The island suffered from a double invasion of small-pox and grippe, and in investigating the relationship between the two diseases he ascertained that out of 112 persons successfully revaccinated not one contracted in- fluenza ; and of 98 in whom revaccination was attempted but failed, only 15 showed any symptoms of the disease. In an isolated villa there were 27 inhabitants, of whom 12 had been recently vaccinated. These all escaped, but the 15 who had not been vaccinated were affected. Alt- haus, who strongly advocates the protective power of vaccination, refers to illustrations which came to his knowledge, in which small clusters of recently vacci- nated persons remained untouched, although surrounded by and freely mingling with grippe-stricken people. The well-known immunity of children is likewise attributed to the protective influence of vaccination. It is stated that in the German army, where revaccination is sys- tematically enforced, influenza was less prevalent and less fatal than in civil life. While influenza affected forty- two per cent, of the population of Berlin, and about sixty-four per cent, of that of Paris, its prevalence in the German Army amounted to only a little more than eleven per cent. A number of garrisons were entirely spared while the inhabitants of the adjacent towns suffered se- verely, and it is further stated that no garrison was ever affected with influenza when the civil population es- caped. When an outbreak did occur in a military post it was found that those affected were almost exclusively soldiers who had not been recently revaccinated. And, finally, statistics show that the average duration of the disease is shorter, complications less frequent, and the death-rate lower in military than in civil life. Further developments in the prophylaxis of influenza will be awaited with interest. Bibliography. Parsons: The Influenza Epidemics of 1889-90 and 1891, British Medi- cal Journal, 1891. Wilson : Influenza, Pepper's System of Medicine. Parkes : Influenza, Reynolds's System of Medicine. Althaus : The Pathology and Prevention of Influenza. 1892. Wolff : Die Influenza Epidemic. Bei lin, 1892. Ruhemann: Die Influenza in dem Winter 1889-90. DaCosta : Pulmonary Complications of Influenza, International Clin- ics, 1892. Thornbury : Influenza and the Latest Bacteriological Researches, Med- ical Record, 1892. Mills: The Nervous and Mental Phenomena and Sequela; of Influenza, Medical News, 1892. Ingals : The Epidemics of Influenza of 1890 and 1891 in Chicago, Jour- nal of American Medical Association, 1891. Hirsch : Handbuch der Historisch-Geographischen Pathologie. Osler : Practice of Medicine. 1892. Watson : Practice of Physic. Prudden : Bacteriological Studies in Influenza and Its Complicating Pneumonia. Medical Record, 1890. Jacobi: General History of the Epidemic of Influenza, Medical Rec- ord, 1890. The Influenza Bacillus, Editorial, Medical News, 1892. Leledy : La Grippe et 1'Alienation Mentale. 1891. 498 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Influenza. Insanity. Kraepelin : Ueber Psychosen nach Influenza, Deutsche med. Wochen- schrift, 1890. Althaus: Post-Grippal Psychoses, American Journal of the Medical Sciences, 1892. Watson & Curtin : The Treatment of Influenza and Its Sequelae, Amer- ican Journal of the Medical Sciences, 1892. Merz: Influenza. 1892. Bristowe : Cerebral Suppuration following Influenza, British Medical Journal, 1891. Bartholow : The Causes and Treatment of Influenza, Medical News, 1889. Lee : An Analysis of the Statistics of Forty-one Thousand Five Hun- dred Cases of Epidemic Influenza, Journal of the American Medical Association, 1891. William Judkins Conklin. INSANITY OF PUBERTY AND ADOLESCENCE. The only addition of importance to what has already been said in the body of this work upon the develop- mental insanities, viz., climacteric and senile insanity and the insanity of puberty and adolescence, relates to the latter class. In fact, the pathology of the insanity of puberty has become a favorite study of late years through the growing recognition of the profound influence of the state of growth upon the rise, nature, progress, and future of mental disease in the individual. Hereditary Influence.-We are largely indebted to Clouston for stimulating inquiry in this direction. He is now prepared to state very strongly, as the result of his experience and careful inquiries into family histories of individual cases in which there was an opportunity of obtaining reliable facts, that practically without excep- tion the typical clinical case of adolescent insanity (of the kind described, for example, on p. 128, Vol. IV., of this Handbook) has in his or her ancestry, immediate or col- lateral, one of the following neuroses, in the following order of frequency : 1. Insanity. 2. Neurotic instability. 3. Intemperance amounting to dipsomania. 4. Epilepsy. 5. Hereditary tuberculosis. 6. General diseases of the nervous system. 7. Congenital imbecility or idiocy. He finds such hereditary predisposition in forty-five per cent, among adolescents, while but twenty-three per cent, of other cases are thus handicapped. Our division of the insanities of puberty and adoles- cence into several groups, according to the various mani- festations of mental disease in this transitional epoch, viz., the genuine hebephrenia of Hecker, stupor, hys- terical, and masturbatory insanity, receives support and further development in a comparatively recent in- vestigation of the insanity of puberty by Mairet, partic- ularly in the matter of stupor, which, as we have pointed out, occurs almost exclusively in adolescents. Stupor.- Clinical observation shows, he finds, that puberty can give rise to insanity, and that the insanity of puberty has not always the same clinical signs. Accord- ingly tins form may be subdivided into insanity of puberty with arrest of intellectual development, anil simple in- sanity of puberty. The latter may appear under several different forms : Melancholic stupor, choreic mania or maniacal chorea, impulsive mania, and hysterical mania. The form of stupor which he describes as peculiar to puberty is identical with stuporous insanity (so-called acute dementia), as distinguished from true melancholic stupor, and merits more ample description than we have accorded it.1 In three out of seven cases Mairet found puberty to be the sole predisposing cause, while its action was favored in the remaining four by hereditary predis- position. The sex also plays a conspicuous role in the causation, as most of the subjects are females. Onanism and mental overwork are occasional factors. Sometimes there is no apparent cause, the stupor appearing suddenly and unexpectedly. A common exciting cause is a moral one, such as crime or other disgrace. There is usually a prodromic period marked by a variety of nervous and general symptoms, chiefly chlo- rosis and irregular menstruation in girls, and by physical fatigue, palpitations, and cerebral hyperaemia in men. The onset of the stupor of puberty is usually sudden, and (SUPPLEMENT.) in most cases is manifested by hallucinations, ideas of fear, and intense maniacal excitement. Sometimes these symptoms are accompanied by fever of an ataxo-dynamic character. Rarely, stupor itself begins the attack. Hys- terical manifestations may also appear before or with the excitement. Ideas of grandeur may take the place of those of fear. The early physical symptoms are refusal of food, sordes, dry tongue, and constipation due to rapid exhaustion. The circulation is poor, and sometimes sen- sation is much diminished. This period lasts but a short time, sometimes only a few* days, but generally several weeks, to give way to a new phase which is the essence of the disorder, stupor. The change is usually gradual, the hallucinations slowly disappearing, and the stupor growing more profound. The patient stands motionless wherever he may happen to be, the head bent, the arms hanging limp. The saliva escapes from his mouth, and his evacuations are passed involuntarily and unnoticed. All food is refused and there seems to be no sensation of hunger. The patient answers no questions and cannot be aroused. Thal he feels and even hears is sometimes evidenced, however, by his turning his head to the ques- tioner. The circulation is retarded, the heart-sounds clear but feeble, and the pulse more or less rapid, small, compressible, and excitable. The extremities are cold and, perhaps, oedematous. The temperature is below normal. Menstruation is suspended. Sensation is much diminished, but not abolished. The general and cerebral nutrition is lessened. Although thus plunged in stupor, the patient may suddenly have an attack of excitement. Oftentimes this is limited to violent laughter, lasting ten minutes or a quarter of an hour, without any apparent knowledge on the part of the patient why he does so. At other times the disturbance is more general, and then the patient will cry, repeat monotonously the same words, or more often the same sounds, to dance, etc., while the dull, heavy condition persists. Other patients perform ridiculous acts, such as swimming movements, contor- tions, etc., or else they suddenly throw themselves upon others and beat them, and soon fall back into stupor. These attacks are produced quickly and are of short duration, from a quarter of an hour to an hour, to reap- pear after a time. The period of stupor, the principal feature of the disorder, lasts from several weeks to as many months. It is a most favorable form of insanity in respect to recovery, which takes place gradually as a rule. It is impossible to confound this with any other form of mental alienation. It is sometimes distinguished with difficulty from the melancholy, with stupor of older patients, but differs therefrom chiefly in the severity of the onset and the rapidity of the emaciation. Choreic Insanity (or " Maniacal Chorea.'')-The insanity which accompanies acute chorea also belongs to this period of life, is of pubescent or adolescent nature, and belongs exclusively to the group under consideration. All the cases of insanity associated with acute chorea on record have occurred w ithin the pubescent and adolescent period, between the ages of thirteen and twenty-three. Most of them have the mental or nervous predisposition, inherited or acquired, so common in the insanity of pu- berty, and all of them, as a rule, have manifested one or other of the physical ailments common to this critical period, viz. : anaemia, chlorosis, scanty menstruation, pallor, palpitation of the heart, headache, etc. It is now generally recognized that chorea in some form is almost invariably associated with mental changes varying from simple impairment of memory, unusual and extensive irritability, etc., to acute mania or dementia. It is equally a fact that chorea is in its most developed state at this period, and that the accompanying mental manifestations are most marked and peculiar, the severe, dangerous, and fatal cases occurring then. It is also noticeable that in almost every case the choreic and mental symptoms ap- pear and subside at about the same time, thus giving proof by evolution also of the close alliance of the two diseases. This intimate union can only be explained by community of origin, chorea and insanity being two independent branches from the same trunk. Consequently, when wre find chorea, essentially a disease of growth, intimately 499 Insanity. Insanity. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) united in youth with mental disorder, the pubescent nature of that insanity is evident. As the acute forms of-both disorders do not appear together at any other time of life, choreic insanity, or maniacal chorea, plainly belongs in the category of insanity of puberty and adolescence. The choreic form of adolescent insanity is more com- mon in the male sex, and heredity plays a more promi- nent part than in the other varieties. Of the prodromic period cephalalgia is the most frequent and important symptom. Irritability and mental confusion, or change in disposition and insomnia, are present. The onset is generally abrupt, following close upon the exciting cause. Usually the choreic and mental symp- toms appear at about the same time-either the chorea precedes the psychical trouble, as in a case reported by Thore, or the psychical change takes precedence, of which the case to be described later is an example. With the onset may appear delusions or hallucinations which may later dominate the scene. In our case the peculiar nature of the initiatory excitement shows their presence, although none were expressed. Insomnia and nightmare are common. Fever is not an uncommon accompani- ment at this stage. The chorea, whether general or localized, reaches its height early in the attack, which is usually not the case with the insanity. The choreic movements also are almost invariably increased during the mental agitation. The next and principal stage is that of choreic mania, which may be either simple or hallucinatory. The maniacal condition is the same, as a rule, as that of ordi- nary mania, except perhaps for its marked irritability. The patient may become readily aggressive even when not excited, or, as in our case, he may present a marked condition of hebetude and mental incoherence. These patients are at times, like others of the adolescent class, poetical and dramatic in speech and writing, as well as vain and declamatory. The attacks of agitation in the more marked and characteristic cases consist in run- ning, jumping, leaping, shouting, nightmares, etc. They are also apt to be especially destructive and homi- cidal. These attacks are almost always spasmodic and impulsive, and are sometimes followed by a state of men- tal and bodily weakness. Sometimes the attacks are not prompted by hallucinations, as is evidenced by the ac- counts given by recovered patients; but as a rule they spring from hallucinations and delusions chiefly of the nature of fear. The duration of acute choreic insanity is very variable, usually several months, but occasionally it lasts as many years. One of Mairet's cases recovered in four years. The prognosis is comparatively good, but less so than that of the stupor of this period, perhaps because the hereditary predisposition is greater in this form. The fol- lowing case presents most of the usual features of the dis- order, but the severe motor symptoms so far predomi- nated as to mask the mental manifestations, and perhaps even to take the place of, or prevent, the characteristic maniacal outbursts. It properly belongs, as we have said, to the other class, represented by the cases whose condition is that of hebetude and mental incoherence. W. W , married, twenty-three years of age, was admitted to the West Riding Asylum February 18, 1882. The certifying physicians stated that the patient was a violent lunatic and gave the following facts: 1. " Talks incoherently, taking no notice of any questions put to him." 2. Relatives report that, "he will sit for hours without speaking." The family physician stated: "He is by nature eccentric in his habits and inclined to be self-willed. Just before the attack he became depressed in spirits, irritable and suspicious of those about him. During the attack he was sometimes violent, sometimes depressed, but had lucid intervals; raved indifferently on various subjects, and would strike with great violence indiscriminately." The patient was brought to the asylum securely bound in a strait-waistcoat which was reinforced by heavy leathern straps. As soon as he was freed from restraint he was seen to be suffering from severe chorea. He was placed in a padded room and became much quieter. Previous History.-Nothing satisfactory to be learned as to hereditary predisposition. No personal history of convulsions or rheumatism. Had been rather delicate, and had an attack of pleurisy with inflammation of the lungs several years before. His domestic circumstances had been satisfactory. Just before and ever since his marriage, six months before admission, he had worked very hard at his trade, carving and gilding. About four weeks before admission he was obliged to leave his work on account of severe continuous and general cephalalgia, which confined him to bed for two weeks. At this time alteration in his manner and conduct became for the first time noticeable. He was dull, preoccupied, and reticent, appeared dazed and indifferent to his condition and surroundings. Later he returned to his work and seemed " like himself " in every way. A week later he returned home in a confused state of mind and soon be- came delirious. For the next two days he was much excited, refusing to go to bed or to take food, threaten- ing to throw himself out of the window, and weeping at trifles. No hallucinations or delusions appear to have been expressed. Just after the excitement became pro- nounced he began to wriggle about, contort his face, protrude his tongue, etc. This disturbance subsided in a day or two. He then conversed freely and naturally, and said that he had fallen in attempting to board a horse-car just before his attack came on, but did not meet with any injury ; that hethen became confused and wandered about the town a long time before he could find his home. Three days before his admission, when supposed to be rapidly convalescing, his former condition returned with renewed intensity, being ushered in by rapid and disconnected talk. From this time he became very unmanageable and his movements so energetic that he was with difficulty prevented from falling out of bed. His knuckles and elbows were also abraded from contact with the wall. He showed at this time no disposition to violence. Physical Appearance.-Pale and emaciated. Pupils dilated, the right excessively so and only slightly respon- sive to light. All his voluntary muscles appear to be affected with chorea. He incessantly writhes and plunges about the bed, tosses his arms, clinches his fists, contorts the face, etc. Abrasions on knuckles and elbows. Skin over sacrum reddened, and on the tongue an ulcer, a quar- ter of an inch in diameter, caused by biting. Pulse, 140, and of fair strength. Heart and lungs normal; appetite fair. He passes his evacuations in bed. Mental Condition.-Though questioned in an interval of comparative calmness, the patient can evidently make nothing of what is said to him. He is ignorant of where he is, why he is here, hew long he has been here. He makes incoherent, nonsensical replies to the simplest questions, but protrudes his tongue when asked. Ex- pression lost and wondering. During sleep there have been slight movements of the upper extremities and head occasionally. February 23d to 26th.-Distinct improvement on the whole. The choreic movements are now absent during sleep. By day he is occasionally quite still, and although there is at present much movement of the head and facial muscles, he has been quite free from spasm. A small eschar has formed over the sacrum, and the abrasions on the elbows and hands are inflamed. Is fed by the at- tendant with soft food, but has great difficulty in prop- erly masticating it. Still irrational and incoherent. He talks in a whisper as if conversing with someone, and most disconnectedly. Says he is in " Fletcher's Mills." March 4th.-He is not still a minute at a time, but the movements are now confined to the face and upper ex- tremities. He talks in a low tone most of the time. Oc- casionally he jerks out a sensible reply after evidently trying to collect his thoughts, but soon wanders off onto a variety of subjects. March 8th.-He is quieter, but still scowls and rolls about somewhat. Touching any part seems to excite muscular contraction. Still unable to concentrate his thoughts or to keep them in the right channel, just as he fails to direct his muscular movements properly after 500 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Insanity. Insanity. making a good beginning. He can tell the time and answer simple questions, when roused and made to apply his mind. Still passes his evacuations in bed. Bedsore deep. March 11th to 19th.-There is but little mental im- provement, although the patient is generally free from morbid movements. He often starts up and looks about him, muttering disconnectedly. He replies to a simple question: "They were laughing at me-cither jump over here or over there." Allows the medicine to drool from his mouth without attempting to swallow. Gives an occasional rational answer after much pressing. Still unclean in his habits. March 26th.-The patient has been for some time en- tirely free from choreic movement. Sits up most of the day. Has become clean in his habits. Whole expression brighter. Answers simple questions correctly, but not readily. Still starts wonderingiy when addressed, and makes strenuous but vain attempts to understand and reply. A fortnight later the patient had, in great meas- ure, recovered his intelligence. He recognized his sur- roundings and that his mind had been deranged. His memory had become nearly restored, but he was still confused and wandering in manner, and his ideas were not perfectly coherent. Expression rather perplexed and vacant. Was still pale and thin. Appetite and sleep, excellent. Gait fairly steady. Bedsore healed. Three weeks later, he was discharged, recovered. There was some elevation of temperature during the three weeks immediately following his admission, but never rising above 101.3° F. It is well in conclusion to re-group the insanities of this period, giving precedence to more characteristic varieties, as follows : Insanities of Pubebty and Adolescence. Pure. Forms. (SUPPLEMENT.) cesses underlie the manifold, subtle, and delicate move- ments of the facial muscles as well as the more palpable movements of the muscles of the trunk and extremities. The physiological basis of the gesticulations accompany- ing ordinary conversation, as well as the more finished gestures of the orator, is undoubtedly the same. All ex- plorers among barbarous tribes give interesting reports of this language of signs. Stanley's observation of the gesticulations of the tribes in Central Africa, as well as the statements of the early discoverers and settlers of America, confirm this idea that there is a sign language common to all races of men. This in turn implies that the functional activities of the central nerve-mechanism are the same, both in savage and civilized races, and af- fords interesting proof of the unity of the human race. Correct physiognomical knowledge, therefore, depends on a proper understanding of the physiology of the cen- tral nervous mechanism. Ignorance as to the functions of the brain and cord led the earlier writers into the most absurd interpretations. Even so shrewd an ob- server as Aristotle attempted to explain the physiognomy of man by a system of meaningless analogies. Fancied resemblances to wild animals, such as a broad expanse of chest and shoulders, and certain conditions of the hair and beard were supposed to indicate the possession of certain qualities of mind, such as bravery, energy, and the like. It is not to be wondered at that the ancients, with their limited knowledge of physiology, should have entertained crude notions concerning the meaning of facial expres- sion. Undoubtedly they were familiar with anatomy, but the subtle connection between the central innervat- ing organ and the external muscular apparatus was entirely unknown to them. To have perceived in a gen- eral way that a certain cast of countenance was associ- ated with a peculiar mental development was the utmost advance that their limited knowledge of animal physi- ology would allow. Hence, though they excelled in copying, they singularly failed in explaining nature. And, as is often the case, the domain that properly be- longs to science was, through ignorance, relegated to charlatanism. Analysis of the human countenance was given over chiefly to soothsayers and magicians, who attempted no rational explanation of the various muscu- lar movements of the face, but who pretended to read therein certain prognostications for the future. It is interesting to trace the gradual development of physiognomic science from the earliest times to the pres- ent, and to notice how gradually correct physiological knowledge was attended by broader and more intelligent views as to the real meaning of physical expression. Nothing could be more absurd and childish than the va- garies of the ancient writers upon this subject, nearly all of whom either thought that expression was due to the mysterious influence upon the brain of certain abdominal vapors, or that the Aristotleian doctrine of resemblances gave the correct clue to the expression of the emotions. Throughout the Middle Ages the study of the physiog- nomy became so identified with astrology and chirology as to lose even what loose scientific value it had previously attained. Mantegazza calls the seventeenth century the golden age of astrological physiognomy. " Then more than ever," he says, " did men have a passion for mys- terious things, for mysteries which have a scientific ap- pearance." The countenance and the heavens were mapped out, and not only character, but future events in the life of the individual were supposed to be prog- nosticated from a comparison between the lines of the face and the position of the stars in the sky. G. B. Porta, of Naples, whose work " Della fisonomia dell 'uomo " was published in 1627, did much toward sev- ering the absurd connection between physiognomy and astrology that had arisen during the Middle Ages. He was nevertheless a strong believer in the doctrine of re- semblances, and his comparisons of the heads of men with those of birds and lower animals are amusing illustra- tions of the extent to which a blind subservience to a theory may lead one. Notwithstanding the absurdity of many of his comparisons, he still deserves great credit as Occurring only in youth and essentially of the adolescent type. Hebephrenia. Acute Choreic Insanity. Stupor. Mixed Forms. Occurring usually but not exclusively in young people. Hysterical Insanity. Masturbatory Insanity. The reader is referred to the contributions of Mairet2 to this subject, from which we have quoted in this article, as well as Clouston's exhaustive lectures on the " Neu- roses of Development," for further study of this subject. Henry R. Stedman. 1 Reference Handbook Medical Sciences, Vol. IV., p. 127. a Annales Medico-psychologiques, vol. viii., 1888, and vols. ix. and x. of 1889. INSANITY, THE PHYSICAL EXPRESSION OF. I. Introductory and Retrospective. Francis Warner has defined expression to be " the out- ward indication of some inherent property or function." All outward muscular movements, whether of the face, trunk, or extremities, succeed definite functional activity of some portion of the central nervous system. This larger use of the word expression is comparatively recent. Muscular movement as an index of cell activity within the encephalon is the latest advancement that physiog- nomical science has made. Viewed in this light, physi- cal expression deserves serious study. Particularly does the physical expression of the insane merit investigation, for it must be presupposed that any disturbance of func- tion in the central nervous mechanism would be quite likely to be reflected in perverted muscular movement at the periphery. Previous to the present century study of physical ex- pression was limited to the face. Now, while it is true that the expression of the emotions receives its most per- fect and frequent demonstration in the facial region, it must not be forgotten that the entire muscular periphery is likewise a participant. The same physiological pro- 501 Insanity. Insanity. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) being one of the first writers that attempted to trace a tangible relationship between the countenance and the mental and moral development of the individual. De la Chambre followed Porta in 1660, with his " L'Art de connaitre les Hommes," in which he showed a tendency to explain the countenance and its changes in a more rational way. In 1747 James Parsons, M.D., delivered a short course in the Croonian Lectures on Muscular Motion. These were published in the Philosophical Transactions under the title, " Human Physiognomy Explained." This work, though quite short, is deserving of great praise, for it was a very sincere attempt at explaining facial ex- pression in a more intelligent manner. He endeavored to refer the expression of the countenance to muscular movements in that locality, and by a series of plates sought to establish a relationship between the movements of certain facial muscles and specific states of mind. " The muscles," he says, " are the true agents of every passion of the mind, and the basis upon which our doc- trine is founded." The soundness of his views is quite remarkable, and his essay is a prominent landmark in the progress of physiognomic science. The following quotation from his Lectures will meet with the approval of modern physiology : " First, every person has a par- ticular bent or disposition of mind, which oftener reigns in him than any other ; secondly, that this habitual dis- position, causing the muscles of the face that are des- tined to express it frequently to act in obedience to that bent of mind, brings on at length an habitual appearance of that passion in the face, and moulds it into a constant consent with the mind. In the course of my own acquaintance, I know some persons who wear on their countenances a constant cheerfulness, complacency, and openness ; and by experience I know it to be their con- tinual disposition of mind ; and on the other hand, I do know of some on whose faces a settled moroseness al- ways strikes the beholder, and know it to be their own constant plague and that of those among whom they come." After the appearance of Parsons's Lectures nothing of any especial worth was published until the year 1783, when Lavater, a Swiss clergyman, published his " Es- says on Physiognomy Destined to Promote the Love and the Knowledge of Mankind." Lavater was an enthusi- ast on his subject, and it is remarkable that, being neither a physician nor an anatomist, he should have advanced views at once so much in accord with modern physio- logical and anatomical knowledge. He struck the key- note of a sound physiognomic science when he declared that outward expression was but the reflection of what was within, that it was the outward effect of an inner cause. He says : " There is not a living being which does not, at least after its manner, draw some inferences from the external to the internal ; which does not judge concerning that which is not by that which is apparent to the senses. This universal though tacit confession that the exterior, the visible, the superficies of objects indicate their nature, their properties, and that every outward sign is the symbol of some inherent quality, I hold to be equally certain and important to the science of physiognomy. " Lavater, being a shrewd and acute observer, was not misled by mere resemblances to infer similarity of dispo- sition and character. He recognized the incorrectness of the ancient method of comparing resemblances, and says, " What the great Aristotle has written on physiognomy appears to me extremely superficial, useless, and often self-contradictory, especially his general reasoning." Of Porta, the Italian physiognomist, he says : " He might more effectually have examined the excessive dissimilar- ity than the very small and almost imperceptible resem- blances which can exist." And again : " It is singular enough that he has also compared the heads of men and birds. He speaks little concerning the horse, elephant, and monkey, though it is certain that these animals have the most resemblance to man." By recognizing the fact that the cranium bore some relation in size and external configuration to its contents, and that in proportion as one ascends the scale of animal life important modifica- tions are met with in the size and shape of the skull, he tacitly admitted the relation between the cranium and the cerebrum, and the relationship between the develop- ment of the latter and facial expression. In an article on "Medicinal Semiotics," Lavater sug- gests the influence upon expression of pathological con- ditions. Many physicians, from Hippocrates to his time, had accurately described the characteristic facies of dis- ease, and yet few of them realized the physiological and pathological import of what they so faithfully described. Lavater, though not a physician, still inferred that the peculiar facies of different diseases suggests certain changed physiological conditions in the patients them- selves. Lavater very nearly touched the true explanation of facial expression/ It is an interesting coincidence that while the Swiss clergyman Lavater was writing his views of physiog- nomy, at nearly the same time, and in another country, the Dutch physician Camper was working out a theory of physiognomy in nearly the same channel. As might be expected, the physician and anatomist, from his knowledge of the different parts of the body and their physiological relation to each other, would be more likely to arrive at a comprehensive and exact theory than a layman. He clearly enunciated the correct physiologi- cal theory of physical expression when he said: "As dissecting of human bodies has been my constant occu- pation, I have had frequent opportunities of examining which of the nerves, communicating with these more active parts, must have been particularly affected ; con- sequently which of the muscles must have been excited to action by these nerves ; and from the action of these muscles depending upon their origins and insertions, course and connections, we may easily learn what pleats in the face, what kind of action in the hands, and so forth, they must necessarily occasion." The next writer connecting the latter part of the last century with the present time is Sir Charles Bell, famous as the discoverer of the motor and sensitive nerves. Bell, by his accurate anatomical knowledge of the nerves, laid the foundation for all that has been written during the present century upon the subject of physiognomy. He first cleared away the confusion which had hitherto sur- rounded the anatomy of the cerebral and spinal nerves, and traced these nerves definitely to their terminations and origins. He demonstrated clearly the mechanism of facial expression. The physiology of reflex and auto- matic action, as well as the important functions sustained by the centres of the cerebral cortex, both in the motor and intellectual activities of life, had scarcely come to be understood in his day, otherwise he would have perceived that the causes of expression in man and the lower ani- mals are often the same ; that in each nervous energy is liberated from the cells within the central nervous mech- anism, and subsequently transmitted along the nerve- channels to their terminations in muscular structure ; that the difference between the causes of expression in man and the lower animals is really less than he imag- ined, being a difference in degree rather than in kind, and due rather to complexity of structure attained in the cerebral cortex of man. Dr. G. B. Duchenne's "Mechanism of the Human Physiognomy," published in 1862, was an ingenious and interesting attempt to demonstrate the mechanism of fa- cial expression. By the aid of the two poles of a battery Duchenne sought to isolate certain facial muscles, and by causing them to act independently of the others, produce artificially the expressions caused by the natural action of these same muscles. It seems questionable, however, whether the action of the electric fluid upon the nervous filaments in the face is precisely similar to the action of the nervous centres within the brain upon these same nervous and muscular tracts. In fact it is very doubtful whether the action upon the muscular periphery of the feelings, such as grief, joy, disgust, and the like, is of the same quality and intensity as that produced by the cells of a galvanic battery. Again, it is very questionable whether the actual results which he has shown in a series 502 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Insanity. Insanity. of photographs are faithful representations of the various states of mind ascribed to them. The field is one in ■which the author's imagination may very easily lead him astray. Having formed a preconceived idea of what a certain artificially produced expression may mean, it is very easy to recognize that particular expression. But one who has not previously read the author's description of the plate may, as Darwin says, very easily conceive it to mean something else. Pierre Gratiolet's lectures, delivered at the Sorbonne, and published in 1865, were a valuable addition to the subject, and particularly interesting because they were the first contribution recognizing that physiognomical changes were only a part of a wider series of muscular movements in other parts of the body. Previous to the appearance of these lectures all writers upon the physi- ognomy limited their studies to the facial region, but Gratiolet saw that muscular movements of other parts than the face entered into expression. In his " De la Physiognomic et des Mouvements d'Expression " he says : " The face is not the only portion of the body capable of expressing the feelings; on the contrary, the hand, the foot of man and animals, the tail of certain carnivora such as dogs and cats, have expressions that cannot be misunderstood. We may add that there is no movement that does not represent expression and follow the laws of expression." In 1872 was published Darwin's " Expression of the Emotions in Man and Animals." Darwin, with the clear insight of the naturalist, fully recognized the meaning of facial expression, or more properly, physical expres- sion. Both in man and the lower animals he perceived that the various muscular movements of expression, whether occurring in the face or in the extremities, were merely the outward reflection of interior states of the central nervous system. His wonderful acquaintance with animal life, reinforced by the vast amount of ma- terial accumulated during his busy life, makes his work an exceedingly interesting and instructive one. As Man- tegazza says, "with his large and comprehensive spirit he traced the general laws which govern expression in the entire animal kingdom. His work is one of the most splendid monuments raised by his genius, and one can say without exaggeration that expression, as far as it is a special branch of comparative biology, was established as a new science only in the work published in 1872." In 1885 was published " La Physionomie et les Senti- ments," by Mantegazza, and in 1886 "Physical Expres- sion," by Dr. F. Warner. Both volumes are a fitting conclusion and summary to all that had previously ap- peared upon this subject, and a pertinent introduction to the various modifications of physical expression in insan- ity. A clear understanding of the mechanism of physi- cal expression and close observation of the insane, demon- strate the physiological laws of cause and effect underly- ing the remarkable changes in expression that occur in various stages of insanity. II. The Mechanism and Physiology of Expkession. In man the central nervous system has reached its highest development. Beginning with the lowest and most rudimentary forms of animal life, a single centre with afferent and efferent nerve-tracts leading to and from the muscular periphery, is typical of nervous struct- ure throughout the animal kingdom. Becoming more and more complex as we ascend the scale of animal life, in man this nervous structure attains vast complexity. In him the central nervous system is composed of intri- cate series of cells connected with each other, layer upon layer, the areas above being connected with those below, and so specialized that different areas have specific func- tions, and yet all subject to control of the cortical gray matter. Three factors enter into the Mechanism of Expression : I. The storage and discharge of nerve-force from the central nervous system. II. The power of inhibition possessed by the cerebral cortex. Ill, The trophic changes consequent upon the proc- esses of waste and repair that are constantly occurring in the cerebral cells. I. The storage and discharge of nerve-force from the central nervous system. Physiological and anatomical data lead to the conviction that the mysterious property known as nerveforce or energy is in some way identified with functional activity of the cerebral cortex, and that, after leaving the cortex, its route is downward to the corpora striata and thence onward through the crura, the corpora quadrigemina, the pons varolii, and the me- dulla to the peripheral muscles. However it may be modified by the structure through which it passes, there is little doubt that this is the route. Exactly what this nerve-force is would be difficult to say. It is undoubt- edly a form of energy, and the nervous system is the special region in which its manifestations may be stud- ied. In some respects it is singularly analogous to that mysterious energy which is now being utilized in mani- fold ways in the daily life of mankind. Like the electri- cal fluid, it is invisible and realized rather by what it accomplishes than by any recognizable attribute. The cortex cerebri seems to be the goal to which are referred all sensations received from without through the various channels of sense. Such sensations are gathered up by the different expansions and terminations of innumerable afferent nerve-filaments in the organs of special sense, like the eye and ear, or in the infinitesimal fibres of the nerves of touch in the skin, and are passed on through various afferent nerve-tracts to the ganglia in the optic thalami, where they are in some way modified and transferred to the cortex, there to serve as stimuli, not only to higher intellectual action, but to the genera- tion of nerve-force. The cortex is, therefore, the object- ive point toward which all sensations received from without are directed. It is undoubtedly the seat of all intellectual processes and the great reservoir of nerve- energy. However imperfectly we can define this nerve-force, there is no doubt that it conforms to the law of " Con- servation of Force or Energy," which is recognizable everywhere in the great natural world about us. In ac- cordance with this well-known law, either the energy, force, or whatever we may choose to call it, will remain stored up as potential energy, or it will be distributed and appear in some more active form as motion. Ganot says : " When the form of a body is changed by the action of forces, either the work done against the internal forces will remain stored up as potential energy, as in a com- pressed spring, or will have been replaced by the develop- ment of an equivalent of heat. Now, this being pre- mised, we see that the energy communicated to any body, or system of bodies, is withdrawn from some fund of energy previously existing ; thus, the energy communi- cated to the piston of a steam-engine is withdrawn from the heat of the steam ; we also see that of the energy thus communicated none is destroyed, but is merely distributed, and exists either as potential energy or as motion of the bodies acted upon, or has been replaced by an equivalent of heat. This fact is called the conserva- tion of force, or more properly, the conservation of en- ergy " (Ganot: " Elementary Treatise on Physics," p. 40). In accordance with this same law the actual forces in the world about us, such as the waves of light and sound, and the ponderability and resistance of bodies with which we may come in contact, all these natural forces are transmitted to the cortex through the various chan- nels of sense ; there they are not lost but merely trans- formed into potential energy, which either remains stored up in the delicate nerve-centres of this region, or, on be- ing liberated and distributed along different efferent routes, appears at the periphery as muscular movement. The comparison with the storage of steam within the boiler is not inapt. Such an accumulation of force must be relieved. In the case of the boiler, the steam, which represents the force, must be liberated at the safety-valve or converted into heat or power ; and, in the case of the brain, the potential energy received through the various sensory channels must seek relief through the different 503 Insanity. Inga nity. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. efferent outlets which have their termination in the mus- cles. Hence muscular movement, in other words, physi- cal expression, is the one universal method by which the higher brain-cells are relieved of their stored energy. Darwin thus admirably describes this generation and liberation of nerve-energy : " A sensitive nerve when irritated transmits some in- fluence to the nerve-cell whence it proceeds ; and this transmits its influence, first to the corresponding nerve- cell on the opposite side of the body, and then upward and downward along the cerebro-spinal column to other nerve-cells, to a greater or less extent, according to the strength of the excitement ; so that, ultimately, the whole nervous system may be affected. This involun- tary transmission of nerve-force may or may not be ac- companied by consciousness. Why the irritation of a nerve-cell should generate or liberate nerve-force is not known ; but that this is the case seems to be the conclu- sion arrived at by all the greatest physiologists, such as Muller, Virchow, Bernard, etc. As Mr. Herbert Spen- cer remarks, it may be received as an ' unquestionable truth that, at any moment, the existing quantity of liber- ated nerve-force, which in an inscrutable way produces in us the state we call feeling, must expend itself in some direction-must generate an equivalent manifestation of force somewhere ; ' so that, when the cerebro spinal sys- tem is highly excited, and nerve-force is liberated in ex- cess, it may be expended in intense sensations, active thought, violent movements, or increased activity of the glands. Mr. Spencer further maintains that an ' over- flow of nerve-force, undirected by any motive, will mani- festly take the most habitual routes, and, if these do not suffice, will next overflow into the less habitual ones.' Consequently the facial and respiratory muscles, which are the most used, will be apt to be first brought into ac- tion ; then those of the upper extremities, next those of the lower, and finally those of the whole body." The cortex is therefore quite constantly excited by the various stimuli transmitted to it from the ganglia of the optic thalami, and just as constantly is it sending forth activities through innumerable efferent nerve-channels to the ganglia of the corpora striata, there to be newly ar- ranged and organized before being transmitted to the tracts at the base of the brain and thence to the various muscles. The cortex, therefore, plays a most important part in all the motor activities of life. It is the great store- house of nerve-force, as well as the seat of all intellectual action. In a certain sense the brain is a great reflex organ ; it is continually receiving stimuli from without, which act as excitants to its various centres, and these centres, in obedience to the stimulations received from without, are constantly discharging nerve-energy which may be measured and realized in the countless motor activities that go to make up the life of mankind. Nerve-energy is in part, therefore, measured by muscular activity. And thus physical expression becomes one of the im- portant agencies by which we estimate the nerve-force and vitality of the individual. It will be interesting subsequently to observe how normal and healthy physical expression is perverted by the various functional and organic conditions of the brain in insanity. This discharge of nerve-force from the brain is either voluntary or involuntary. All the muscular movements that enter into the daily life of man come under one class or the other. It is needless to enter into the much- discussed question as to whether independent motor cen- tres exist in the anterior convolutions of the cortex. The important fact to be remembered is that nerve-force passes down from the cortex to the corpus striatum, and whether it is essentially motor in character before or after it leaves the cortex or corpus striatum, the route followed by it from the cortical centres to the peripheral muscle is always downward through the structures men- tioned ; and another interesting fact is that automatic and habitual movements become retained, or organized, as the physiologists say, in the corpora striata. It is now considered that all the ordinary movements of daily life, such as walking and the like, and many muscular move- ments of complex character which have been acquired (SUPPLEMENT.) by hard and constant application, are at last permanently organized in the corpora striata, so that, l^v a single effort of the will, their easy and almost unconscious perform- ance may be elicited. Many purely reflex, as well as acquired, muscular movements are undoubtedly effected through the action of the optic thalami and the corpora striata without once calling upon the higher centres in the cortex. Sensory impressions are received in the centres of the thalamus, and excite into activity certain centres in the corpus striatum, and, as a result, certain muscular movements ensue. Such movements are purely reflex and automatic, and are often independent of volition and consciousness. Undoubtedly this purely automatic action of the basal ganglia, entirely independent of the cortical centres, is of more common occurrence among the lower animals than in man. Still there are many instances on record now to prove that many most complicated acts have been performed by men at a time when their conscious- ness and volition-in other words, the centres in the cor- tex-were entirely in abeyance or quiescent. On this point Ferrier says: "In man, however, the shorter circle through the optic thalami and corpora striata does not appear sufficient, for the interruption of the conscious circle through the hemispheres by lesion of the cortical motor centres produces paralysis of a very complete and enduring character. " This goes far to show that even the most habitual, or even the most automatic, actions of man require the co-operation of the centres of conscious activity, a view which is taken and strongly argued by Dr. Ireland. " But though the basal ganglia may not, of themselves, suffice for the execution of the habitual movements of man, there is every reason for believing that they do so to a large extent, from the fact that the performance of habitual actions exercises but little interference with the conscious activity of the hemispheres in other direc- tions. "We may express it thus, that in actions requiring conscious discrimination and voluntary effort the larger circle of the hemispheres is involved, but that in the ac- tions which have become habitual and automatic the larger circle is greatly relieved by the organic nexus be- tween impression and action which has been established between the sensory and motor basal ganglia. The op- tic thalami and corpora striata form thus a sensory-motor mechanism, according to the views of Dr. Carpenter. I would use the term, however, only in the generic sense of afferent-efferent, it having been shown that sensation, or consciousness of impressions, is not a func- tion of the optic thalami. Hence the reaction between the optic thalami and the corpora striata, being below the domain of consciousness, is outside the sphere of psychical activity, properly so-called " (Ferrier, "Func- tions of the Brain," chap. x.). Just as the ordinary habitual movements of daily life become organized in the corpora striata and only await the proper stimulus for their elicitation, so has Ferrier advanced the theory that the co-ordination of sensory im- pression with the mechanism of emotional expression is situated in the corpora quadrigemina. He says : "The foregoing considerations on the relations between the phenomena of irritation and destruction of the corpora quadrigemina, though in many respects professedly of a hypothetical nature, tend to support the view that these ganglia are the centres specially concerned in the reflex expressions of feeling or emotion. This is ren- dered still more probable by the recently demonstrated influence which the corpora quadrigemina, or, more properly, the deeper parts of the corpora quadrigemina, exert on the functions of circulation and respiration, modifications of which are one of the most frequent con- comitants of states of feelingoremotion" (Ibid., chap, v., p. 83). It is worthy of note also that the third and fourth pair of cranial nerves, as well as the sensory roots of the fifth pair, have their origin in the corpora quadrigemina. All these nerves play a certain part in facial expression. The third nerve, both by its action on the muscles of the eye- 504 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Insanity. Insanity. ball and by its connection with the iris, exerts a more or less prominent influence on the changes of facial expres- sion. In like manner the fifth nerve, though chiefly sensory, still by its motor distribution to the pterygoid, masseter, and temporal muscles, is in some degree influ- ential in certain pathological states of expression. Chief among the factors in physical expression, and particularly in facial expression, is what physiologists have called muscular tonicity. It is that condition of the muscles by which a continuous, normal tension is main- tained, and is undoubtedly due to the constant transmis- sion of nerve-force from the cerebral centres through va- rious efferent paths to the muscular periphery. This particular discharge of nerve-energy is purely involun- tary, and is not recognized in the individual conscious- ness. Duchenne, in his " Mecanisme de la Physionomie humaine," speaking of tonicite musculaire, says that this force never sleeps, that it never ceases, except at death, and that by means of it that equipoise and natural equi- librium of the facial muscles is kept up which consti- tutes the natural and distinctive physiognomy of the in- dividual. " It is thus," he says, " that the physiognomy in repose is established, the individual physiognomy which consequently ought to be the reflection of our ha- bitual sentiments, the facies of our passions." Mante- gazza, also, in " La Physionomie et les Sentiments," refers to this constant innervation of the muscles that enters so largely into healthy expression, and contributes to what he calls the vivacity of the muscles. " This vivacity of the countenance," he says, " is the signal that the nerve- centres are in the best possible condition." And again, " The good face, or the countenance of health, means that the physiognomy expresses a good general nutrition, an excellent chemical composition of the blood, and a powerful and well-balanced innervation." Impairment of muscular tonicity is one cause of the changed expression among the insane. Organic and even functional disease of the cortex quite frequently impairs this transmission of nerve-force from the brain to the muscles which, as we have seen in health, should be constant, of uniform strength, and not intermittent. Our meagre knowledge of the pathology of insanity con- firms the inference that normal muscular tonicity is pro- duced by a certain constant action maintained by the higher cerebral centres upon the terminal muscular ex- pansions ; that the nerve-force is stored up in the corti- cal centres, and that it is undergoing continuous dis- charge and distribution to the innumerable deep and superficial muscles of the body. II. The power of inhibition possessed by the cerebral car- ter. Besides being a repository of nerve-force, the cortex undoubtedly exercises an inhibitory function, not only over its own centres, but more particularly upon those below them. The whole subject of inhibition is of great importance in any discussion of physical expression, and will be considered more in detail in the following chap- ter on the physical expression of the insane. Briefly, in- hibition is the power of restraining nerve-function which one part of the brain or nervous system possesses over some other part. Many physiological and pathological facts suggest the idea that the chief inhibitory centres are located in the cortex. Study of the physical expres- sion of the insane confirms this view. In some diseased conditions central irritability is so great and the power of healthy inhibition so slight, that all manner of purposeless movements ensue. Chorea and certain states of mania and melancholia illustrate this. The irregular, spasmodic, and useless muscular movements that characterize these and other diseases of the central nervous system are due to the uninhibited discharge of nerve-force from the higher brain-centres. In health the restraining of all such excessive and mean- ingless discharge seems to be one very important func- tion of the cortex. But even in health it is noticeable that this power of inhibition varies with the growth and development of the individual, being stronger at one time in the life of the same individual than at another, and even varying with the health and strength of the person. This subnormal inhibition is of common occurrence in (SUPPLEMENT.) so-called " nervous" people. Such persons are charac- terized by excess of muscular movement, quite often by extravagances of speech, though not sufficiently extreme to be called pathological. Finally, this power of healthy inhibition is modified greatly by hereditary influence. The inhibitory and coordinating power possessed by the higher nerve-centres in the brain is slight in infancy, and increases with age and development. The infinite random and meaningless movements of the infant's arms, legs, and facial muscles in response to external stimuli, are only so many outlets for nerve-force unchecked by inhibition and co-ordination. They constitute the physi- cal expression of the infant, and illustrate perfectly its automatic and reflex character. Meynert says : " Jn con- sequence of irradiation and the lack of cortical inhibi- tion upon the subcortical gray substance, we find in the child imperfect mimical expression ; and in its stead we have pronounced spasmodic contractions, which, accord- ing to the spirit of the observer, are interpreted either as laughing or crying. The same is true of those afflicted with dementia paralytica" ("Psychiatry," Am. Trans., Appendix, p. 273). Defective inhibition, due to organic or functional disease of the cortex, is one of the chief factors of the morbid physical expression of the insane. Excessive and needless movements of the various mus- cles of the face and body may be due in the child to the imperfect development of the inhibitory centres, or in the adult to pathological conditions of these same centres ; or among adults we may find those in whom healthy in- hibitory power has never been developed, simply from lack of proper training in childhood. III. The trophic changes consequent upon the processes of waste and repair that are constantly occurring in the cerebral cells. The entire question of cell waste and nutrition is imperfectly understood. There is no doubt that this branch of cerebral dynamics will receive constantly in- creasing attention from the physiologist and pathologist of the future. This process by which the cell stores up energy, which in some mysterious way it abstracts from the external world and then liberates through efferent tracts to the muscular system, is an admirable illustration of the law of " Convertibility of Forces." Not one of the forces of nature is lost; it is simply transformed and appears in some other form. But while the cell is en- gaged in this delicate process still another series of changes is taking place within its own structure, the pro- cess of waste and repair. No more delicate adjustment exists in the entire natural world than this equilibration that is maintained in the normal cerebral cell. The slightest disturbance in the protoplasm means impair- ment of function. This impairment of function, due to primary nutritional defect in the cell, may appear at the periphery as imperfect muscular tonicity, or in impaired nutrition of external parts, or in sluggish and irregular muscular movement. As Warner says, " It appears probable that a very distinct analogy may be made be- tween series of movements and series of acts of growth, and that similar laws may govern both " (" Physical Ex- pression," p. 81). Both " trophic action " and "kinetic action " are the expression of cell activity in the central nerve-mechanism. Concerning the importance of the cerebral cell, Dr. Lewis says: "We may safely exalt the nerve-cell to a position of the very highest importance in our problems of mind. It is on this account highly important that the nerve-cell of the cerebral cortex should be the subject of careful study by all interested in psychological medicine, and that due attention should be paid to the conditioning of its functional activities, and to the results of its nutri- tional impairment, disease, and death. " Suspended within a sac in direct connection with the lymph-channels surrounding the blood-vessels, or rather its own special nutrient capillary, the nerve-cell becomes liable to any influence, however trivial, disturbing the blood stream in its neighborhood. A quickened circula- tion, a retarded flow, an anaemic state of the cortex must influence the functional activity of these centres of feel- ing and thought. A vitiated quality of the blood, or the presence of toxic agents introduced from without, or 505 Insanity. Insanity. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. elaborated within, the economy will affect them in a greater or less degree, while the activity of the lymph connective system in the removal of the effete products of functional wear and tear will play an all-important role in the same direction " (" Text-Book of Mental Dis- eases," p. 484. W. Bevan Lewis). Likewise Dr. Edward Cowles, in the Shattuck Lecture for 1891, bears excellent testimony to the train of symptoms following "weak- ness and toxic irritation of the central mechanism " (" Shattuck Lecture for 1891," p. 52). Thus it happens that nutritional changes hereditarily pre-established in the cerebral cell, or initiated therein by overwork and neglect of the laws of health, become reflected outward in the physical expression of the individual. Clinical illustration is abundant among the insane ; but of this more hereafter. Finally, it may be said that physical expression (and particularly that portion that is circumscribed by the facial region) is largely automatic, for the most part in- voluntary, and that it is developed in an entirely mechan- ical way. It belongs to the large class of reflex move- ments, and is one of the ways in which stimulations initiated within a central organ, or communicated to it from without, are reflected outward along certain nerve- tracts to terminal muscular attachments. The expression of the emotions, for instance, may be referred back to certain broad fundamental principles that obtain in the lowest radiata as well as in man. Physiologists are quite well agreed that the various emotions seek expres- sion in muscular movements that are either defensive or sympathetic in character. Meynert says: "As move- ments of expression vary with the emotions, these move- ments must be either of an aggressive or repulsive char- acter. We will find, with regard to the child in particular, that all physiognomic phenomena come under these two heads" (Meynert: "Psychiatry," Appendix). It is in obedience to this fundamental principle that the jelly-fish approaches toward and endeavors to enclose whatever is agreeable in the way of food, and contracts from and re- pels whatever is disagreeable in character. In like man- ner man, though in an infinitely more complex way, as might be inferred from his highly complicated and specialized nervous mechanism, draws near or touches whatever is pleasing, and shrinks from or repels what- ever is displeasing. The principle in either case is the same, though in man the mechanism through which the feelings are expressed, as well as the feelings themselves, have become so complex that the original physiological principle is nearly lost sight of. Individual expression, then, is a variable quantity, de- veloping and changing with the growth of the person, and varying with his moods. In infancy physical expres- sion is simple in character, is limited to innumerable re- flex movements which, in the main, are sympathetic or defensive. At this age nerve-force is generated and lib- erated along different efferent routes, with little restraint. Soon after, or even during early infancy, inhibitory power is developed in the cortical centres, and nerve- force is conserved for future use. Undoubtedly, in ear- liest childhood muscular tonicity is established by the continuous normal discharge of nerve-force from the cerebral cortex over the shortest and easiest, and for that very reason, the most habitual routes to the muscular periphery. This tonic action of the cerebral cells, which gives to each countenance its characteristic expression, unquestionably receives a powerful influence through heredity. This transmission of the cerebral cell-structure to offspring explains the similar expressions so often seen in different members of the same family. Hereditary transmission plus the inhibitory influences that are devel- oped by education, discipline, and the many attritions of civilized life, modify the tonic action of the cerebral cells upon the facial and other muscles, so that when adult life is reached an individual acquires that expression of maturity that is peculiar to him. It is difficult to define just what it is, and how this mature expression of the adult differs from a certain unfinished and undeveloped expression of childhood and early youth ; there is, how- ever, a vast difference in the facial expression of an indi- (SUPPLEMENT.) vidual in these two periods of his life, and there can be no doubt that the mature expression of adult life depends upon, or corresponds to, a modification of the cell-struct- ure of the cerebrum. Even in early infancy a wonderful change is noticed in the facial expression during the first few months. Photographs taken during the first few weeks and months of infancy, illustrate perfectly the outward nerve-muscular manifestations which cor- respond to an inner development. Muscular move- ments, at first only fleeting, by constant repetition be- come habitual and permanent. In this mechanical way will heredity, the social, intellectual, and moral life of the individual mould the physiognomy. An explanation is here found for those singular rever- sions in old age to certain family expressions which have characterized parents, uncles, aunts, or grandparents. Conolly thus refers to this interesting fact: "On the other hand, persons of ardent dispositions, who have worn all through their active years the physiognomy of an ex- citable mind, sometimes lose by degrees all this muscular agitation, and as they descend into the calm twilight of age, revert in appearance to that of parents or uncles or aunts still remembered by friends of the family. After death the face often exhibits these resemblances ; and, above all, the placidity which human events can disturb no more. When there are exceptions to this, and the coun- tenance bears in the latest years of life the stamp of mean or angry sentiments, which sometimes indeed shock our observation even in the coffin, the effect seems to be a result of the habitual impress of such feelings on the muscular part of the physiognomy during the greater part of life, with few or no benign alternations" ("The Physiognomy of Insanity," by John Conolly, M.D., Med. Times and Gazette, May 15, 1858, page 498). Quite striking and interesting is the change that is sometimes witnessed in the faces of the chronic insane after death. In the faces of these cases there seems to be a partial reversion toward former and more natural ex- pression at the time when death puts an end to the dis- eased action of the brain cells. Such cases will, after life is extinct, look more natural and more like their former selves, so their old friends say, than they have appeared for years. It would seem that in these cases a strong in- dividual expression had been attained through the influ- ences of heredity and early training, which had been modified for many years by the perverted motor action due to slight pathological changes of the brain, but which expression had returned immediately upon the cessation of the diseased action of the cerebral centres. On two or three occasions within my own experience, when I felt regret for the sad change of countenance that the friends must see in the face of some patient about to die, and who, for years, had been afflicted with chronic alienation, I have been singularly surprised to see how much better the face appeared after death. Certain lines of expression, and a peculiarly unpleasant cast of coun- tenance that I had been accustomed to see for years, and to regard as habitual, had entirely vanished with the ces- sation of life, and a completely different and, to me, new expression (but which the friends recognized as charac- teristic of a condition of mental health in bygone years), had taken its place. This singular phenomenon was no- ticed by Dickens in " Little Dorrit." The Father of the Marshalsea says : " Unless my face when I am dead sub- sides into the long-departed look, they say such things happen, I don't know, my children will never have seen me." The study of the physical expression of the insane en- ables one to observe the mechanism of expression from a pathological stand point, and yields still further confirma- tory evidence of the reflex and involuntary character of expression in general. III. The Physical Expression of Insanity. Knowledge of the mechanism of facial expression in health suggests the inference that the physiognomy must be variously modified by disease. If individual expres- sion be due to a close functional relationship between 506 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Insanity. Insanity. activity of the cell-structure of the encephalon and mus- cular movement at the periphery, it is evident that dis- eased conditions of the central nervous system must in some way exert an influence upon the physiognomy. Gowers, following in the line of Hughlings Jackson's investigation, to the effect " that the whole brain is made up of structures which subserve sensory-motor processes, and that into such processes all its functions may be re- solved," adds, "but that every structure of the brain concerned with sensation proper is connected, directly or indirectly, with a part concerned with motion, may be regarded as a proposition scarcely needing proof." Ac- cording to this theory the motor disturbances in epilepsy are due to morbid functional conditions in the convolu- tions, thus demonstrating a most intimate relationship between peripheral muscular movement and diseased cell- activity in the cortex. In epilepsy an illustration is presented of great motor disturbance and marked alteration of the physiognomy, due to some powerful temporary interruption of healthy cell action in the convolutions. In insanity, and many other allied morbid states, additional opportunity is af- forded for observing still further physiognomical altera- tions due to morbid, though more persistent, changes in the nerve-centres of the convolutions. Indeed, it is interesting to note, in this connection, the remarkable influence that habitual mental and moral con- ditions exert upon the physiognomy. Certain types of character are apt to be associated with a certain configu- ration of countenance. So universally has this been ob- served, and so frequently have certain mental and moral traits been associated with peculiar facial expressions, that artists and dramatic actors have represented their characters with this or that cast of countenance accord- ing to the character of the individual they wish to por- tray. We often say of the person whom we may pass on the crowded street of a city that he has an ugly face, and we feel quite confident that he may be a man of low, brutal instincts; or, meeting another person, we say of him that his countenance is that of a noble, high-minded individual. Note the faces of the convict class in our prisons and penitentiaries; they are nearly all of them unpleasant to look upon, and many are positively repul- sive. The photographs of noted criminals present few features that are attractive. The physiological reason for this individuality of ex- pression undoubtedly lies in the fact that the expressions oftenest repeated in the face are those most likely to re- main, and in time these become the predominant expres- sions which individualize the countenance. Hence the criminal, in quite a mechanical and involuntary way, establishes what we recognize as a criminal countenance ; men of high moral sentiments, and noble, generous im- pulses, acquire a certain permanent facial expression associated with these more ennobling sentiments. Un- doubtedly, specific cell changes within the cerebral cen- tres correspond to these variations in personal character, and have their indices in the face. In this connection it is interesting to notice the methods of great dramatic readers and actors. These attain their marvellous perfection in the portrayal of their assumed characters, not by studying their attitudes and facial ex- pression before a mirror, but by a process of intense ab- straction they lose themselves and become identified with the assumed character to the degree which produces in their appropriate brain-centres conditions identical with those which are real in the characters they represent. The difference is this: in the one the expression is the reflex of real character, while in the other imagination and the power of abstraction throw the brain-centres, for the time being, into the same physiological state which, through muscular channels, is reflected in the countenance and attitudes. Few possess this great gift, and the difference between the common actor and the great histrionic masters is that the former are usually mere mechanical imitators, while the latter absorb, in the way described, the character they seek to portray, and, for the time being, think, breathe, act, and live in the assumed part. Who that (SUPPLEMENT.) has seen Salvini impersonate Othello has not felt, at mo- ments in the progress of the play, that it was the real Othello whom he saw and heard speak, and not Salvini ? And in the wondrous play of his features how plainly could the English auditor read the thoughts and feelings of the Moor, and interpret the words of the great trage- dian, though unfamiliar with the language in which they were spoken. The association of a lower grade of physical health with permanent and fixed criminal tendencies is not always imaginary. Many habitual criminals have been born of unhealthy or intemperate parents, and have spent the formative and growing part of their lives amid hy- gienic surroundings and conditions that were well calcu- lated to stunt all healthy physical development. Steven- son, in the most interesting psychological study, Dr. Jekyll and Mr. Hyde, recognized this association of evil qualities with defective physical organization, and a healthier and more robust constitution with a more noble and generous character. Hyde was stunted, dwarfish, and anaemic; Jekyll larger, well proportioned, and ruddy. The impression which Hyde left upon the lawyer's mind is not an unusual occurrence. " The law- yer stood a while when Mr. Hyde had left him, the pict- ure of disquietude. Then he began slowly to mount the street, pausing every step or two and putting his hand to his brow like a man in mental perplexity. The problem he was thus debating as he walked was one of a class that is rarely solved. Mr. Hyde was pale and dwarfish, he gave an impression of deformity without any namable malformation, he had a displeasing smile, he had borne himself to the lawyer with a sort of mur- derous mixture of timidity and boldness, and he spoke with a husky, whispering, and somewhat broken voice. All these were points against him, but not all of these together could explain the hitherto unknown disgust, loathing, and fear with which Mr. Utterson regarded him. 'There must be something else,' said the perplexed gentleman. ' There is something more if I could find a name for it. God bless me, the man seems hardly human ! Something troglodytic, shall we say 2 or can it be the old story of Dr. Fell; or is it the mere radiance of a foul soul that thus transpires through and transfigures its clay continent? ' " These various types of countenance have a new in- terest to the psychologist when he considers them from a physiological point of view. The defective, ill-nurtured brain may not lead the individual into insanity, but may, even in spite of proper early training, develop a criminal tendency and character. In either case, however, the cortex by its intimate connection with the motor centres below it, and through them with the muscidar periphery, is quite certain to modify in some way the muscular play of the countenance. We need not wonder, then, at the hardened, coarse features of the criminal, for during his whole lifetime the higher centres in the brain have received but little active development, his entire life has been animal and sensuous ; and in the absence of any exercise of the higher mental faculties there have never been implanted in his countenance those more refined and elevated expressions that are the outgrowth of the moral and intellectual life. Incapable of anatomical demonstration as this may seem to be, there can be but little doubt that the higher mental faculties do seek expression through activity of the cortical centres ; and inasmuch as we know that dis- eased conditions of these cortical centres do very materi- ally modify facial expression, the inference is reasonable that the unpleasant facial expression of criminals has a physiological foundation in certain structural conditions within the cerebrum. The illustrated volume by Inspector Thomas Byrnes, of New York, entitled " Professional Criminals of Amer- ica," is quite interesting to the physiognomist. With few exceptions, the portraits represent men of hardened character, and their countenances give strong evidence of entire lack of sympathy with whatever is ennobling and elevating in life. The expression of their eyes is either furtive and treacherous, or suspicious, or else bold 507 Insanity. Insanity. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) and brazen. Their mouth and lower jaw bespeak the grasping, selfish, animal life they lead. As might be ex- pected, the faces of women malefactors give evidence of the most striking degeneration ; there is little left in their bold, coarse features to remind one of the gentler, more sympathetic qualities of their sex. It is interesting to note how facial expression, among criminals even, is modified by the degree of intelligence of the individual. The shrewd, well-informed, ingeni- ous bank burglar, possesses a very different face from the low-lived, more ignorant river thief. As Inspector Byrnes says, the latter " are as hard-looking brutes as can be found ; " while the former may not only be modest and gentlemanly in appearance, but even people of consider- able education. It is quite evident that these latter are the exception, and that they owe their finer countenance to their intelligence and intellectual ability, as well as to a certain moral development ; for it must be borne in mind that many of these professional burglars live dual lives. Men of this class often have homes and children whom they are educating in good schools. The ties of affection exist as strongly in them as among men of cor- rect life. It is not difficult in their cases, therefore, to account for an improvement in the type of the criminal countenance. Occasionally there appears one of those strange moral monstrosities in whom much shrewdness and even intel- lectual ability is associated with an entire absence of con- science. Such individuals, while keeping up a show of moral and social respectability, may all the while be en- tertaining the most criminal plans. As a rule, the facial expression of such persons is unpleasant, and their feat- ures reveal the more purely sensuous life they are liv- ing, as well as the character of the impulses which direct their daily thoughts and actions. These unfortunate beings usually manifest a persistent tendency to develop a morbid passion for cruelty or crime of some sort, and this in spite of any careful early training in the right direction which they may have received. To this class belong such eases as that of William B , reported by Dr. Clarke in the Journal of Insanity for July 1886 ; and by Dr. Hack Tuke, in the Journal of Mental Science for October, 1885. E. H. Rulloff, executed at Binghamton, N. Y., and whose case was reported in the Journal of Insanity for April, 1872, is another illustration of this same class. He possessed certain remarkable intellectual accomplish- ments, but seemed entirely devoid of any moral sensibil- ity. Unfortunately no photograph of his face during life could be obtained, while those taken of the plaster- cast made after his death are deficient in details. Dr. Burr, of Binghamton, in a paper, on Rulloff, read before the Medico-Legal Society, September 14, 1871, makes some remarks upon this notorious criminal's gen- eral appearance which are so pertinent to the subject under discussion that, in lieu of a photograph, I cannot forbear quoting them. He says: "His countenance when in repose was stolid and indifferent ; wrhen giving vent to his frequent ebullitions of passion, it was repul- sive and forbidding ; but when animated by some subject in which he took an interest, like his favorite theme, philology, his features assumed a lively, active, and intel- ligent expression. In walking he stooped forward, and had a shambling, shuttling gait, such as he would be very likely to acquire during his long confinement in the vari- ous prisons in which he had been incarcerated. "His entire organization, as has been remarked of the cranium, was coarse. It was not without vigor or powers of endurance, but its material was not of the best quality, and was wanting in the fine finish which is now regarded as the best development of the human structure. In some respects his organization resembled that deteriorated condition, or that low type of physique, which has been declared by Mr. Bruce Thompson, to be characteristic of criminals as a class." The human countenance, therefore, possesses a singu- lar interest for the physician, because in its manifold expression he may read the reflected impress of certain physiological and pathological changes taking place within the cerebral centres. In forming a diagnosis nearly every physician is influenced in large measure, though often in a tacit and almost unconscious manner' by the facial expression of the individual whose case he may have under consideration. The wise and observing general practitioner often makes a correct diagnosis upon first entering the sick-chamber ; he takes in at a glance the peculiar facies of his patient and sees in it the pa- thognomonic signs of some disease. The dusky counte- nance, the sunken cheek, the dilated nostril, the short and almost panting breath, indicate phthisis even before physical examination. The injected eye, the trembling tongue and fingers, the hurried frightened glance over the shoulder, the sudden start and involuntary repelling motion of the hand, with the intent look of fear peering into corners and toward the direction from which any novel sound may proceed, suggest the delirium of alco- holism. And so the psychiatrist is influenced at times, almost more strongly than he can describe, by certain glances of the eye and a certain configuration of the countenance, and is led to infer alienation, although it would be extremely difficult for him to satisfactorily convey this evidence, so convincing to himself, to an- other person, or to make it satisfactory to a jury. Nev- ertheless, it is important evidence to him, and in the ab- sence of incoherence, or of any apparent delusion, he is induced to believe that his patient is mentally unsound, and so persist in his examination or demand repeated ex- aminations until he has struck the key-note of his men- tal weakness. And how frequently is the reverse true ! The examining physician feels sure that the individual before him is not insane ; the eye, the countenance in its entirety, indicate to him more definitely than he can for- mulate the same in language, the repose and the equi- poise of health. The words of Dr. Luther V. Bell, written some twen- ty-five years ago, in a deposition concerning an insane woman, are interesting and quite pertinent to the present subject. He says : "The reasons which convinced me that Mrs. was laboring under a grade of con- firmed insanity of long standing, of probable incurabil- ity, and to an extent depriving her of responsibility for her actions, may be included under two divisions. ' The first may be called personal convictions, not capable of being fully conveyed to another mind, such as the ex- pression of countenance, of eye, of manner, of habit of receiving and communicating thought, which a long ac- quaintance and domiciliation with the mentally diseased compelled me to accept as the truth ; outer proofs of an inner morbid condition, yet which can hardly be so de- picted or explained to the inexperienced. All profound and grave maladies have their specific physiognomy, more or less clear and capable of being described ; some awfully clear and pathognomonic, like the odor of cancer, or the face of advanced phthisis. Insanity has its own delicate characteristics of face, eye, manner, reasoning, feeling, which can be read by the expert, but which would not be appreciable to the merely casual ob- server. His power in this regard is not capable of being transferred to another mind, but must die with its pos- sessor.'' It is just here that instantaneous photography assists the psychiatrist and enables him to transfer to another or to retain for future reference, through the sense of sight, all those delicate characteristics of face, eye, manner, and the like which are caught by the camera and re- tained on the sensitive plate-a thing that was not practi- cable at the time Dr. Bell gave his deposition. In the present essay it is proposed to analyze the phy- siognomy of different insane persons. As one result of such analysis we shall find that the facial expression of the insane is determined by one or more of several patho- logical conditions. By studying these conditions separ- ately we gain a clearer view of the significance of physi- cal expression in insanity, and thus confirm the views already expressed concerning the physiology of physical expression. These pathological conditions may be considered un- der three heads: 508 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) insanity. Insanity. I. The trophic or nutritive disturbances which accom- pany the disease. II. Impairment of healthy inhibition which is so fre- quently associated witli insanity, and one result of which is weakening of the faculty of attention. III. Excessive or defective nerve-muscular activity of an involuntary character, dependent upon morbid irri- tation or degeneration of the cerebral structure. To these may be added the different positions and ex- pressions of the eye, which, though possibly dependent upon the foregoing pathological conditions, are still of such significance as to deserve separate mention. In connection with the third condition, that of vary- ing motor disturbances, a study of various attitudes of the insane, as well as the different positions of the hands and the manner of carrying the head and the entire body, will be found both suggestive and interesting, as afford- ing striking confirmation of the physiological principles previously discussed. I. Modifications of the Countenance in Insanity which are Due to the Trophic or Nutritive Disturbance Attendant Upon the Disease.-In a large majority of cases insanity is itself caused by depreciated physical health. Dr. C. F. Folsom says: "The exhaustion and the disturbed cerebral circulation arising from acute and chronic dis- eases, profound anaemia, or prolonged mental strain, as- sociated with emotional disturbance from any cause, are among the antecedents of insanity" (" Mental Diseases," p. 117). The association of neurotic and unhealthy phys- ical conditions in different members of the same family is quite common. Of most frequent occurrence is the association, among different individuals of one family, or an alternation in the same person, of phthisis and insanity. Aside from such causes as hereditary transmission, alcoholic and venereal excesses, traumatism, and with the exception of its occasional appearance as one of the sequelae of some other disease such as epilepsy or some of the acute infectious diseases as measles, scarlet fever, and the like, insanity in the large majority of cases is caused by depreciated physical health with or without the association of some moral disturbance. The most frequent history given the physician is the following sequence : Overwork, loss of sleep, loss of appetite, indigestion, emaciation, increased worriment of mind, and, finally, actual insanity. The insanity appears as the result of the imperfect nutrition of the brain, which was in its turn produced by disordered health caused by im- proper attention to rest and digestion. On the other hand, insanity itself may act as a cause of the deterioration of physical health. Oftentimes it ag- gravates the profound physical depression which was, in the first instance, the primary cause of the mental disturbance. We readily understand the reason for this secondary action of the brain upon the general health when we consider that this delicate organ presides over the entire nervous system, and that any disturbance in its action is sure to modify the healthy distribution of nervous force in the different parts of the body. Re- peated and long-continued congestions of the delicate centres in the cerebral cortex, attendant on nearly all attacks of acute insanity as well as in the exacerbations occurring among the more chronic forms of the disease, lead to imperfect restoration of cell-structure in this organ, or to an unhealthy hyperplasia of the delicate tis- sues. Such changes in the brain result in its imperfect nutrition. Impaired nutrition of the brain leads to de- fective bodily health in various ways: either the mor- bid ideas which are the result of the brain disturbance lead to refusal of food, or the supply of healthy nervous energy to the entire alimentary canal is so interfered with that all the processes of digestion are improperly performed and healthy assimilation is impossible, or the activity of the cells in the cortex may so interfere with normal vaso-motor innervation that the natural circula- tion of the blood in other parts of the body is disturbed. In either case a depreciated state of bodily health, a de- cidedly lowered vitality, with diminished resistance, is the result. This depreciated state of the general health is mani- fested in the condition of the skin, the hair, and mucous membranes. Every physician who attends upon the in- sane is familiar with the cold, clammy hands so character- istic of this class of patients ; or with the dry, scaly state of the epidermis ; the brittle, dry hair ; the furred tongue and oftentimes offensive breath ; the peculiar flabby con- dition of the skin of the face, with its pasty, lustreless color. All these characteristics, though not always pres- ent, still prevail in the majority of cases, and indicate that the general health has been impaired either by the cere- bral disturbance itself, or by the constitutional causes leading to the brain trouble. Although the photograph cannot preserve all the con- ditions of ill health above referred to, still the flabby countenance with its lack of healthy tonicity; the " lean and hungry look," and many of the signs of impaired vitality, are well retained and form a striking feature of any collection of portraits of the insane. In a general way the study of the countenances of the insane leads to the conclusion that nearly all acute, re- cent, and very active insanity is attended with emacia- tion, sometimes only slight in degree, at other times quite extreme. This is quite noticeable in acute mania, acute melancholia, in the depressed stage of folie circu- laire, during the active excitement of paresis, in acute primary dementia, or in dementia secondary to acute or chronic insanity, especially where the progress of the disease has been rapid. Those forms of insanity in which there is an exces- sive elimination of nerve-force from the cerebral cen- tres, are always attended by emaciation. In acute mania, some forms of acute melancholia, the maniacal stage of paresis, this constant and extreme elimination of nervous energy is manifested in almost incessant motor activity, and in these cases we always notice emaciation and general physical prostration. Case XLII (see p. 519), acute mania, illustrates the emaciation attendant upon constant motor excitement in Fig. 337, A ; while in Fig. 338, B, the return to health is evidenced as much by change in nutrition as by intelli- gence of expression. In other cases the nervous system may be profoundly affected, and, though motor activity is not a symptom, still the trophic disturbances are as pronounced as in those to which we have just referred. In these cases the motor and the ideational centres seem to be overcome by the force and suddenness of the nervous shock, and there ensues an entire absence of activity in these same cen- tres. There is no longer an elimination of healthy ner- vous energy from the cerebral region, and hence there is not only a cessation of normal functional activity of all the bodily organs such as the stomach, intestines, liver, kidneys, heart, and lungs, but there is also a paralysis of the centres in the cortex. As a result the patient is not only utterly exhausted and physically prostrated, but he is also mentally confused and dazed. An illustration of this condition, with its attendant trophic disturbance, is seen in Case XXXI., A and B (Figs. 313 and 314). This pa- tient came into the asylum in a state of complete mental stupor ; she would neither eat nor speak, gave no heed to personal cleanliness, but would void her urine and faeces wherever she might happen to be, whether stand- ing up or lying in bed. She would stand for hours in the attitude seen in A, her eyes fixed and motionless, and no amount of urging could excite her attention. She be- came exceedingly emaciated, although she was fed daily upon the most nutritious diet. Comparison of pictures A and B with C (Fig. 315), taken at time of discharge and recovery, illustrates the wonderful nutritive disturbances that occurred during her sickness. Undoubtedly, the profound trophic alterations in her case were due pri- marily to the extent and severity of the diseased action in the cortical centres. Another fact is worthy of notice. Whenever a patient, suffering with some form of in- sanity, after a long period of mental disturbance, begins to regain flesh and weight without making any corre- sponding mental improvement, we have reason to fear 509 Insanity. Insanity. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) that the alienation in this patient may become chronic. In such cases it is not at all improbable that the cerebral structure has accommodated itself to the morbid pro- cesses which have been disturbing it for so long a time. The cells in the cortical region continue to act in and recovery. In nearly all cases of chronic insanity there is that condition of lowered vitality which is gen- erally the inevitable accompaniment of the disease. The flabby skin, lustreless eye, general absence of healthy plumpness, and the drooping head, all indicate deficiency of normal nutrition. All these symptoms are more manifest in the persons themselves than in their photo- graphs ; yet the latter plainly signify the trophic disturb- ances associated with the disease. Melancholia is almost invariably attended by pro- nounced trophic disturbances, and photographs of this class always show what marked inroads upon physical health this especial form of mental disease may make. In no case is this more noticeable than in XXXIII. (see page 528). The emaciation was extreme. Every mental faculty seemed paralyzed, and many bodily functions, such as digestion, assimilation, and nutrition appeared to be almost entirely suspended. His gradual return to mental health is marked by corresponding improvement in nutrition, and shows quite plainly in Figs. 346, 347, and 348. This depreciation of physical health during the height of the attack, its return and perfect establishment at time Fig. 313.-Case XXXI. Melancholia with Stupor. A, showing full- length attitude maintained for hours. Ocular divergence, self-absorp- tion, and emaciation. (From photograph taken by author.) their newly acquired morbid manner, while those parts which more particularly preside over the functions of nutrition and assimilation and of organic life act auto- matically and as naturally as ever. Thus, though the individual may have all the symptoms of chronic delu- Fig. 315.-Case XXXI. C, same person after recovery. (From photo- graph taken by author.) of mental recovery, is quite noticeable in the portraits of Case XXXI., A, B, and C. In Case XL1L, Fig. 338. B, taken at time of recovery, when compared with A (Fig. 337), presents very marked changes in physical health. Alternations in loss and increase of flesh are often no- ticeable in cases of insanity. During the active stage of paresis, when there is very marked cerebral activity, at- tended with pyrexia and great motor disturbance, there is much tissue waste, and the patient becomes quite ema- ciated. When the excitement abates, the fever disap- pears, and motor activity ceases, then the appetite is apt to increase to an excessive degree, assimilation goes on as usual, and the patient sinks into a passive, quiescent state in which flesh is accumulated to an almost unnatural de- gree. In cases of folie circulaire there is often increase of flesh and strength during the active stage, and during the period of depression there is marked emaciation. All the processes of assimilation seem to be in sympathy with the depression of mind, and when the reaction comes increased appetite and improved assimilation, together with increase of flesh and strength, also reappear. In other cases, although there is no real improvement in the mind, still a change in the character of the delu- sions leads to a more hearty ingestion and assimilation, and the patient's physical health improves, although men- tally he may still be far from well. In many of the chronic forms of insanity, where there Fig. 314.-Case XXXI. B, showing nearer view of head. (From photo- graph taken by author.) sional insanity, or of mental weakness in some form, still the processes of nutrition and assimilation are nor- mally performed, and he may attain a good degree of physical though not of mental health. More frequently, however, increase of flesh and perfect physical health are coincident with mental convalescence 510 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Insanity* Insanity. is little undue motor activity, and especially in that form known as paranoia, the bodily functions are carried on quite naturally. In a well-regulated hospital there is so little to disturb the lives of these patients, their hours of eating, sleeping, and bathing are so regular, that even though their cerebral condition is in no way improved, their physical health is quite good, and oftentimes the accumulation of flesh in these cases is almost pathologi- cal. A removal of such patients to a less favorable situ- ation often results in a rapid deterioration of their physi- cal health, or at least in a loss of their flesh. In all cases of chronic insanity, however, marked improvement in physical health is more apparent than real. There is, as we have seen, an occasional accumulation of adipose tissue ; but in such cases there is often a deficiency in that general vitality and energy which we associate with health, and which is so effective in resisting dis- ease. To briefly recapitulate what has been said concerning the trophic and nutritive modifications of the physiog- nomy in insanity : 1. In the majority of cases there is impaired general nutrition due either to (a) congenital brain deficiency ; (b) to abnormal or excessive elimination of nervous energy from the brain, thereby weakening and interfering with the functional activity of that organ ; or (c) to permanent brain weakness acquired as a result of chronic insanity. In these three ways the functional activity of the brain as a distributor of nervous energy to the organs of diges- tion and assimilation is interfered with, and the general health suffers as a result. 2. Occasional alternations of flesh and emaciation, of improved and impaired physical health in the same indi- vidual, and due to fluctuations in the functional activity of the brain. 3. Occasional coexistence of physical health and men- tal disease-a condition of things which is oftener ap- parent than real, and dependent largely upon the for- tunate environment of the patient. II. Modifications in the Physical Expression of the In- sane, Due to Impaired Inhibition.-The inhibitory power is recognized as playing a most important part in the intellectual and physical life of man. Whether inhibi- tion is a purely metaphysical attribute of mind, or a spe- cial function having its seat in specific centres of the brain, its importance as a factor in the life of the indi- vidual cannot be doubted. Many writers have denied the existence of special inhibitory centres. Many phys- iological and psychological facts confirm their views. G. II. Lewes argues with much force against the exist- ence of special centres of inhibition. He attempts to explain the phenomena of inhibition by what he calls the Law of Arrest. " The Law of Arrest is only another aspect of the Law of Discharge, and may be regarded as the conflict of excitations." According to this theory, each nerve tract and centre possesses inherent inhibitory properties of its own. The strongest excitations prevail: " The discharge is only the resultant of the conflict along the line of least resistance ; the arrest is the effect of the conflict along the line of greatest resistance " (G. II. Lewes, "Physical Basis of Mind "). Meynert advances the theory that the gray matter of the brain and cord presents a certain resistance to nerve- conduction. Increased irradiation of any irritation is ac- companied by increased resistance in nerve-conduction. " It is evident then," he says, " that inhibition resulting from resistances introduced in nerve-tracts accompanies the simplest reflex processes." Many physiological and pathological data lead us to infer that nerve-tissue, and particularly the gray matter, possesses certain inherent tendencies to resistance to nerve-conduction. Herein man widely differs from the lower animals. For in them, this resistance to nerve- conduction, which we recognize in man as a part of his inhibitory faculty, is incapable of development, but re- mains stationary through life just as it was transmitted at birth by heredity. In man, on the contrary, this property of resistance may be developed by individual training and experience. Hence the inhibitory power varies with the person : there is no universal inhibitory standard that can be applied to all alike. The possession of a high degree of inhibition is often due to an active exercise of the will-power ; hence, per- fect inhibitory capacity is usually associated in the same individual with a strong and active manifestation of the will. Carpenter says : "Now the man in full possession of his volitional power can use it, (1) in giving bodily effect to his mental decision, by either putting in action the muscles which will execute the movements he has determined on, or by restraining them from the action to which they are prompted by some other impulse ; and (2) in controlling and directing that succession of mental operations by which the determination is arrived at " (Carpenter, " Mental Physiology," p. 378). In the gradual evolution of the inhibitory power the will plays a most prominent part. By active and con- stant exercise of the will an individual may develop marked inhibitory power. Inhibition represents gradual growth, therefore, and varies at different periods in the life of the same individual. At birth, and during early in- fancy, it scarcely exists. Every act that the infant per- forms is the impulsive and spasmodic result of sensory stimulation. During childhood the inhibitory power re- ceives its first training and development. The child learns to govern himself. Experience and his parents teach him that the mere impulsive gratification of every whim that may arise, of every appetite that suggests itself, is not only not desirable, but may be fraught with disastrous results, both here and hereafter. In youth and manhood this power of inhibition receives constant education. The experiences of life all tend to develop it, if the will insists upon it. In the cultivation of man's moral nature the successful development of inhibition receives a good illustration. Man's unbridled animal instincts might lead him into habits of vicious and selfish indulgence, of which the criminal records present abundant illustrations. The teachings, however, of religion, morality, and even the instinct of self-preservation, lead him to place a check upon these mere animal indulgences. At first the con- flict may be difficult, as the history not only of individ- uals but even of entire nations, will testify. Individual persistence succeeds, however, in implanting in the per- son such power for resistance that these temptations not only cease to have any allurement, but even become loathsome. Such inhibitory resistance is transmitted by heredity. The inhibitory power, therefore, may vary greatly among races of men as well as among individuals. Edu- cation is certainly a prominent factor in its development. Civilized man possesses the inhibitory power to a greater degree than the savage ; the educated, in this as in many other respects, are vastly superior to the ignorant. In- deed, success in life may be measured by the degree of healthy inhibition possessed by the individual. Climatic and hereditary conditions exert a powerful in- fluence in modifying and developing the inhibitory power. And thus we can understand why it is that the people of one nationality and climate differ so materially from those of another in the possession of this faculty. We may briefly summarize by saying that inhibition seems to be a restraining pow'er which is implanted in the mind, and incorporated as it were in the nervous system of the individual. It is largely a matter of individual growth, and depends for its successful development upon the strong and healthy exercise of the will. There is also evidence that the inhibitory power is modified in various ways by climatic and hereditary influence. It is also evi- dent that, when once this inhibitory and restraining power is implanted within the nervous organization of an in- dividual, its habitual and almost involuntary exercise is elicited by the presentation of the proper stimulus. Thus habits and tendencies which have only been repressed with the greatest difficulty and after the most active ex- ercise of the will, receive frequent and comparatively easy restraint when once a tendency to their inhibition has been fairly established by the individual. The inhibitory power seems to be intimately associated 511 Insanity. Insanity. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) with all our higher faculties, and in common with them seeks expression through functional activity of the cere- bral cortex. The inference is natural that functional or organic disturbance of this region should be attended by disordered inhibition. Among the earliest manifes- tations in insanity is impairment of the inhibitory power. In health the inhibitory function is exercised in a two- fold manner: First, in checking irrelevant trains of thought, repressing whatever is impertinent to the sub- ject engaging the attention ; and secondly, in checking certain muscular movements which, though they natur- ally follow the stimulations which have preceded them, still, for the time being and with other objects in view, are undesirable and out of place. It is not surprising that the inhibitory function, so in- timately associated with all the higher activities of the mind, and probably identified with cell-activity in the cerebral cortex, should be among the first to become dis- ordered in insanity. A careful analysis of the symptoms that arise during the premonitory and early stages of men- tal alienation discloses evidences of weakened inhibition. Among the higher faculties the attention holds a most prominent position. Active exercise of the inhibitory power is indispensable to a complete awakening of the attention. And the success attained by any individual in the various walks of life may be measured by his power of inhibiting whatever is irrelevant, that is, by his ability to concentrate his attention upon the work before him. Obersteiner has well said : "We can will that a certain action to which there exists a powerful stimulus should be repressed and carry out another. By inhibition of the former we concentrate our attention on the latter. . . " Ideas tend to call up other ideas by association, and naturally along the most easy channels. But we can check the current of ideation along the easiest paths and divert it into paths which are more difficult. We think attentively and inhibit continuously. The more power- ful this inhibitory working of the attention, the more in- tense the thought, the more numerous the paths opened up, and the more productive in its consequences. It ap- pears therefore from these considerations, that in every mental act, whether it be in the domain of sensation, voli- tion, or intellect, there is seen an inhibitory power essen- tially the same in all cases " (" Experimental Researches on Attention," by H. Obersteiner, in Brain for January, 1879). In the early development of insanity one of the first symptoms to attract the notice of the friends, and to arouse their suspicions of mental disturbance, is a manifest in- ability on the part of the patient to concentrate his atten- tion. This will declare itself in various ways. The patient becomes inaccurate. If a mechanic he either accomplishes less work or is careless; if in business he makes frequent mistakes and fails to fulfil important obligations. All this inaccuracy and omission of detail is due to varying degrees of self-abstraction. The patient has lost the power of successfully inhibiting the fleeting thoughts or suspicions which crowd his mind and which supplant the ideas that immediately concern his daily work and life. In health the individual possesses the power to turn his thoughts in the direction of his work or whatever may interest him at the time. Irrelevant ideas and sensations can be inhibited, and only those regarded which will as- sist the work in hand. But in the earlier stages of in- sanity, and in the more firmly established conditions of the disease, every morbid idea, and often every communi- cation to the sensorium through the avenues of the special senses, acts as a diversion. The patient's power of atten- tion is so easily distracted, he places such a morbid con- struction upon every new sight or sound, and his inhib- itory power is so weak that healthy concentration upon affairs of real importance is an actual impossibility. The asylum workshop affords an excellent illustration. Here you may study inhibitory incapacity in every stage of development. A stranger enters the room and probably half of the patients will cease working, some will arise from their seats, and possibly one or more will walk about the new-comer, looking him over inquisitively and either talking to themselves or to the visitor. And in what a scattered and desultory way is much of the work per- formed ! Evidently ideas irrelevant to the occupation in hand absorb and divert the attention of these diseased minds into other channels. In just the proportion that the individual possesses inhibitory capacity, to just that extent does he seem capable of performing successful and intelligent work. Bearing in mind, then, that weakening of healthy inhi- bition is one of the first results of insanity, we find this impairment of the inhibitory capacity manifested in the physical, and particularly the facial, expression of the in- sane in two ways : 1. There is inability to control the movements of the facial muscles. The insane make few attempts at con- cealing the facial expression of their feelings. With them impaired inhibitory power interferes with that slight volitional control which we possess over those facial movements that habitually follow certain emotions. In the familiar language of daily life the insane look very much as they/eeZ, and their attempts at concealing their real emotions are few and unsuccessful. 2. For the same reason there is impaired inhibition, there is inability to concentrate the attention, the result of which is an expression of self-absorption quite peculiar and characteristic of the disease. These two elements in the facial expression of the in- sane merit more discussion in detail. First, as to inability to control the well-known facial expressions of certain emotions. We must remember that the muscular move- ments producing facial expression are essentially reflex, and largely involuntary. When displeased we do not will our facial muscles to assume certain positions char- acteristic of displeasure ; neither when amused do we will that they should contract in the way peculiar to the expression of amusement. As has been previously stated, the muscles, without any seemingly volitional effort of our own, assume these positions themselves in obedience to the special force transmitted to them from the cerebral cells along the intermediate conducting nerve-fibres. Although the ordinary muscular movements concerned in facial expression are involuntary, still man does pos- sess a limited control over them. This inhibitory influ- ence over muscular contractions that are commonly re- flex and involuntary is developed by education and experience ; and is often carried to a high degree of per- fection by persistent self-training in this particular direc- tion. The emotions are more unreservedly expressed in the face of the child than in that of the adult ; the igno- rant and uneducated betray their feelings in their facial expression more frequently than do the intelligent ; in- deed, this power of controlling the expression of one's innermost sentiments may be the evidence of a healthy and well-balanced mind. This attempt at concealing these deeper feelings is practised to a certain extent and with varying success by every one. Sometimes a senti- ment of pride, again criminal reasons influence an indi- vidual to inhibit the ordinary movements of facial ex- pression. Thus a man may be bowed down with grief, and yet when he appears in public will, from a secret feeling of pride that leads him to avoid betraying his emotions to others, conceal every expression of sorrow. He will smooth out the wrinkles of pain on his forehead and appear calm and unmoved until by himself again. Or the criminal, who harbors motives of hatred and revenge, or who has committed some great crime, will conceal, or at least attempt to conceal, the malignant and guilty expression which would otherwise betray him. To a certain extent, therefore, the normal involuntary and reflex movements of facial expression are inhibited in health. In insanity, however, the inhibitory power is so weakened by the disease that successful control of these movements is difficult. The insane patient makes few and ineffectual attempts at disguising the feelings which oppress him. The con- flicting emotions by which he is disturbed are reflected through the various motor-tracts to the face, and as a re- sult we may often read the character of the delusions which preoccupy the mind. Thus the expression of the 512 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Insanity. Insanity. countenance in acute melancholia is generally quite char- acteristic of a depressed state of the feelings ; and what is especially noteworthy is the fact that this diseased ex- pression is far more intense than would be the expression of similar emotions in the same individual in health. Im- paired inhibition does not exercise any restraining influ- ence upon the countenance, and, whether alone or in the presence of others, the melancholic presents the furrowed brow, the anxious and distressed expression about the eyes and month that are characteristic of these especial emotions, whether they proceed from natural or morbid causes. The only difference is that the normal manifes- tation of grief is modified by healthy inhibition, while morbid sorrow is persistent, intense, and not subject to outward restraint. Indeed, the most marked illustrations of impaired inhi- bition are found among the faces of the melancholic in- sane. There is oftentimes in these cases a complete abandonment to the predominant emotion-the patient making no effort whatever to control the expression of the feelings. Darwin's remarks upon the facial expres- sion of sorrow are particularly interesting, and, un- doubtedly, are physiologically correct. As his explana- tion of the physical expression of grief is corroborated by the physiognomy of melancholia we will briefly refer to what he says upon the subject. The muscles which are brought into play during the expression of painful emotions are the corrugators, orbic- ulars, pyramidalis of the nose, and the frontalis. These are what Darwin has called the " grief muscles" when they are placed in " conjoint yet opposed action," which action he thus describes : " When a person elevates his eyebrows by the contraction of the whole frontal muscle, transverse wrinkles extend across the whole breadth of the forehead ; but in the present case (expression of grief) the middle fasciae are alone contracted; consequently, transverse furrows are formed across the middle part alone of the forehead. The skin over the exterior parts the skin of the forehead from the central and raised part. The reunion of these vertical furrow's with the central and transverse furrows produces a mark on the forehead which has been compared to a horseshoe ; but the furrows more strictly form three sides of a quadrangle. They are often conspicuous on the foreheads of adults, or nearly adult persons, when their eyebrows are made oblique ; but with young children, owing to their skin not easily wrinkling, Fig. 317.-Case LV., Acute Melancholia. Marked and characteristic innervation of Darwin's "grief muscles." Intense motor disturbance. (From photogiaph taken by author.) they are rarely seen, or mere traces of them can be de- tected " (" Expression of the Emotions in Man and Ani- mals," by Charles Darwin, Am. ed., 1873, p. 181). This peculiar contraction of the "grief muscles'' re- ceives its best illustration in states of mental depression, but irregular and morbid activity of the brain-cells in different forms of insanity may produce nearly the same action, even though the state of mind is one of complete confusion or even exhilaration. In Case XXVII., chron- ic melancholia, we see the action of Darwin's " grief muscles " producing in a striking degree obliquity of the eyebrows and the vertical lines between them which Darwin says is so characteristic of emotions of depres- sion. In this same case the naso-labial furrow, extending from the wing of the nose to the angle of the mouth, and which Darwin says is of so frequent occurrence in blub- bering children, is strongly marked. In Case LV. this peculiar action of the corrugators and central fasciae of the frontalis muscle is strikingly illustrated. The corru- gators in their contraction draw the eyebrows inward, producing the vertical furrows seen at the inner edge of each eyebrow ; the frontalis in its contraction produces the transverse furrows across the centre of the forehead, while the orbiculars in their contraction smooth out these transverse wrinkles on the outer borders of the forehead. As in the previous case, the naso-labial furrow and the depression of the corners of the mouth, due to the contrac- tion of the depresswes anguli oris, are very pronounced. Indeed both Cases XXVII. and LV. afford most strik- Fig. 316.-Case XXVII.. Chronic Melancholia. Morbid and uninhib- ited expression of grief. Darwin's "grief muscles" in contraction producing "horseshoe mark." (From photograph taken by author.) of both eyebrows is at the same time drawn downward and smoothed by the contractions of the outer portions of the orbicular muscles. The eyebrows are likewise brought together through the simultaneous contraction ot the corrugators ; and this latter action generates ver- tical furrows, separating the exterior and lower part of 513 Insanity. Insanity. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. ing representations of prolonged concentrated grief and mental suffering. These are typical cases of melancholia, and while it is evident that emotions of depression have produced their normal and legitimate expression in their faces, it is equally plain that no person in a state of mental health would present this remarkable appearance for several consec- utive hours, and in the pres- ence of others. Such action as is represented in the photo- graphs of Cases XXVII. and LV. could only proceed from persistent and u n i n terrupted morbid cell ac- t i v i t y . In health, the nor- mal inhibitory action of the cortical centres would render such extreme man ifestations impossible. In these cases of melancholia no amount of persuasion or distraction, not even the fact of sitting for a portrait, when most people make an effort to smooth out their features, produces the slightest change in these disturbed and painful countenances. It is quite obvious that healthy inhibition has ceased to be a factor in the facial expressions of these unhappy subjects, and that the various muscu- lar contractions of their faces are so many per- sistent signals of the psychic pain which fills their minds. The photo- graphs figured in Plate IX. of Kirchoff's work (Figs. 318, 319, and 320 of the present article) illustrate the uninhibited ex- pression of dis- tress in the fa- cial region of a case of pa r a - lytic dementia, upon an imper- fect attempt to articulate a dif- ficult word, and the smoothi n g of all themuscu- lar folds when the patient is in repose. In the portraits of cases of acute mania it is very plain that inhibition exercises no restraining influence what- ever over the constant nerve-muscular activity which so transforms the physiognomy. Case XLII. (see p. 519) illustrates how completely has intelligent control over the features been swept away by the storm raging within the cerebral centres. (SUPPLEMENT.) Ilie iaces or tne cnronic delusional insane snow quite clearly the absence of healthy inhibition. Thus the sly, distrustful glance, the bitter, lowering look of hatred and enmity, the self-satisfied air of exaltation, or the de- jected countenance of self-abasement, are expressions quite frequently noted among this class of insane, and are another evidence of the inability of the patient, through im- paired inhibi- tion, to control the outward m a n i festation of the inner feelings. These same feelings exist in health, oftentimes with great intensity, and yet how perfectly are they concealed! In this connec- tion it is inter- esting to note that in the weaker mental conditions o f childhood these same feelings and emotions are frequently and as clearly represented in changes of fa- cial expression as are the corresponding emotional states in the faces of the adult insane. The main difference lies in this fact, however, that in childhood inhibition through the will has not been developed, while among the adult insane it has been weakened bv disease. Fig. 318.-Paralytic Dementia. Face in repose. (From Kirchoff's Handbook.) Fig. 320.-Paralytic Dementia. (Same case; con- ditions the same as in Fig. 319.) (From Kirchoff's Handbook.) Fig. 319.-Paralytic Dementia. (Same case.) Un- inhibited expression of distress as shown in the contraction of the ''grief muscles" upon at- tempting to articulate a difficult word. (From Kirchoffi's Handbook.) Fig. 321.-Case III., Chronic Delusional Insanity. Persistent, unin- hibited ideas of suspicion and hostility. (From photograph taken by author.) Case III., characterized by chronic delusions of en- mity and suspicion, and also homicidal, quite clearly ex- presses in the countenance the dissatisfaction with, and the opposition to, those about him, as well as fierce deter- mination to gratify his impulses on the first favorable opportunity. 514 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Insanity. Insanity. Case XII. quite plainly manifests in his countenance his all-absorbing egotism. In sitting for his portrait he chose his own position, arranging with great care his decorations, consisting of old buttons, bits of glass, (SUPPLEMENT.) ments that characterize their individual cases. Fig. 329 is especially interesting, in that the same individual is shown under more normal conditions. Impaired inhibi- tion explains all this distortion of feature. A peculiar appearance of self-abstraction is the second way in which weakening of the inhibitory power among the insane manifests itself. This self-absorption results from inability of the pa- tient to inhibit trains of morbid and irrelevant thought. He looks preoccupied, and often entirely disregards his environment. So absorbed does he become that it is with the greatest difficulty that he concentrates his attention on persons or things about him. Hence results an ex- pression of indifference, a fixed intent gaze, but with no particu 1 a r ob- ject within the range of vision. In discussing the position and condition of the eyes in the coun- tenances of the insane more ex- tended allusion to this subject will be made. At present it is only necessary to call attention to the fact that the peculiar ab- sorbed, absent- minded expres- sion, so fre- q u e n 11 y met with in the in- sane, is due to impairment of the faculty of attention caused by weakening of the power of in- hibition. In Figs. 333 and 334, taken from Kirchoff's work, this absorbed expression, indicating complete disre- gard of the environment, is well preserved. III.-The third manner in which the physical expres- sion of health is modified by insanity is through excessive, deficient, or automatic nerve-muscular activity of an involun- tary character, dependent upon morbid irritation or degener- ation of the cerebral cell-structure. Allusion has been pre- viously made to that regular transmission of nerve-force which, in conditions of health, is constantly passing from the cerebral cen- tres to the mus- cular periphery. The results of this elimination of nerve energy are seen in that permanent and normal tension of the muscular system called muscular tonic- ity, and also in the ordinary fa- cial expression of every individ- ual when the features are in repose. It is proposed in the present section to consider how this normal and regular trans- mission of nerve energy in health is modified by Fig. 324.-Case of Paranoia, Showing Disap- pearance of all Healthy and Natural Expres- sion, Due to Absence of Cortical Inhibition. (From Kirchoff's Handbook.) Fig. 322.-Case XII., Paranoia. Morbid egotism and fondness for dis- play. (From photograph taken by author.) . brass wash-bowl chains, tin, etc., which he imagined to possess great value. The violin, which he made himself out of limited materials, and with an old knife and awl, he was anxious to display as a Cremona instrument of rare worth. The inconsistency of his real position (that of confine- ment for life in an asylum), the utter worthless- ness of his jewel- ry and impro- vised insignia do not in the least lead to the inhi- bition of the ex- p r e s s i o n s of morbid vanity and self-impor- tance which per- vade his counte- nance. Indeed, in n e a r 1 y all forms of acute or chronic insanity, characterized by active persistent ideas, there will be noticed in the facial expression a complete aban- donment to the prevailing morbid emotions, with scarcely any attempt at inhibition. Kirchoff's views of insane patients in Fig. 331, Fig. 332, Fig. 325, and Fig. 326 illustrate how completely the insane abandon themselves to the predominant senti- Fig. 323.-Case of Paranoia. Uninhibited expression of opposition and resentment. (From Kirchoff's Handbook.) Fig. 325.-Case of Mania, Showing Uninhibited Muscular Movement. (From Kirchoff's Hand- book.) 515 Insanity. Insanity. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) the functional and organic disturbance of the brain in in- sanity. In doing this we enter the larger field of Physical Expression, where we study not only the changes observed in the face, but every abnormal manifestation taking place in the entire muscular system, including gesticulations, attitudes, manner of holding the head, carrying the hands, and every possible irregular and abnormal muscular movement. All these movements, which are caus- ed by irregular cell activity of the cerebral cen- tres, have one ch a rac teristic d i s t i nguishing them from theor- dinary changes of facial expres- sion ; they are entirely mean- ingless, subserve no purpose, and do not conform to any of the well-known ex- pressions of the emotions, as grief, joy, etc. In health the ex- pression of these emotions is al- ways recognized by certain well-known muscular contractions which ob- servation has taught us are characteristic of correspond- ing mental states. We know, for instance, that laughter will be manifested by contraction of the corrugators, of the malaris, and of the great zygomatic ; in grief we know that the eyeballs will be rolled a little upward and inward, and that the con- traction of the central fibres of the frontalis act- ing upon the cor- rugators will produce a pecu- liar and very characteristic wrinkling of the forehead above and between the eyes, and that the depressores anguli oris will draw down the corners of the mouth. These muscular c o n - tractions follow in a certain defi- nite m a n n e r their causative mental states. So regularly and constantly do they succeed their antecedent mental conditions, that, given the state of mind, the re- sulting movements of expression can be foretold even be- fore their appearance. Hence the expressions of the emo- tions can be easily separated into groups : thus we have the expression of joy, grief, disgust, and all the others. On the other hand, the movements under discussion are not regular, do not indicate any particular state of mind, but represent rather that irregular and interrupted action of the brain-cells which often takes place in acute insan- ity, and is of very frequent occurrence in the degenerative brain conditions of chronic alienation. To avoid confusion we may study this phase of the Physical Expression of the insane under three heads : I. As representing states of excessive nerve-muscular activity due to central irritation. II. As representing states of deficient nerve-muscular activity due to central degeneration. III. As representing states of automatic cell-activity in the cerebrum occurring not infrequently in acute insanity, and quite constantly in the chronic form of the disease. I. Physical Expression of the Insane Caused by Ex- cessice Nerve-muscular Activity.-That mysterious prop- erty which, for want of a better name, we call nerve- force, is undoubtedly being constantly stored up within the brain - cells, and as regularly discharged from them. The in- timate relation- ship between this elimination of nerve - force and muscular movement has been clearly stated by Dr. Carpenter, in the following para- graph : "We shall hereafter see that each kind of mental activ- ity-sensational, instinctive, emo- tional, ideation- al, volitional - may express it- self in bodily movement; and it is clear that every such movement is called forth by an active state of a cer- tain part of the brain, which excites a corresponding activity in the motor nerves issuing from it, where- by particular muscles are called into contraction. No physiologist can doubt that the mechanical force ex- erted by the muscles is the expression of certain chemi- cal changes which take place between their own sub- stance and the oxygenated blood that circulates through them; or that the nerve-force which calls forth those changes is intimately related to electricity and other physical forces. But this ner- vous activity has its source in molecular changes in the nerve - centres ; the transmis- sion of nerve- force along the motor nerve be- ing just as de- pendent upon chemical changes taking place between the substance of the gan- glionic centre from which it proceeds, and the oxygenated blood that cir- culates through it, as is the transmission of an electric cur- rent along the Fig. 326.-Case of Mania. Uninhibited egotism and exhilaration. (From Kirchoff's Handbook.) Fig. 328.-Case of Mania ; showing nnrepressed expression of exhilaration. (From Kirchoff's Handbook.) Fig. 327.-Case of Mania ; showing unrepressed expression of exhilaration. (From Kirchoff's Handbook.) Fig. 329.-Folie Circnlaire. J, Depressed stage, with expression of uninhibited grief. (From Kirchoff's Handbook.) 516 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Insanity. Insanity. telegraph wire upon the chemical changes taking place between the metals and the exciting liquid of the gal- vanic battery" ("Mental Physiology," Am. Ed., 1874). The laws which govern this elimination of nerve-force are similar to the laws governing force in general. The great law of conservation of force or energy prevails in the field of cerebral activity as elsewhere. When chem- ical changes take place within the delicate nerve-centres of the brain as a consequence of external stimulation through the senses, or internal stimulation following mental activity, the result conforms to the requirements of this universal law. Either the force generated by these chemical changes remains stored up in the cerebral cells as potential energy to be called forth at some future time by stimula- t i o n , or it is transferred from the cells along the proper tracts to the muscu- lar system, and appears as mo- tion. This is the physiological deli n i t i o n of Physi cal E x - pression. Now, a certain constant and regular trans- mission of this nerve-force from the central cells to the muscular periphery is, as we have seen, natural and in accordance with health. Indeed, a state of general good health demands this outward relief for the potential energy constantly accumulating with- in the brain-cells. Thus the excessive muscular activity of all young and growing animals, the playfulness of young dogs and kittens, the pranks and follies of boy- hood, are oftentimes merely the expression of this great natural law. In adult life the potential energy of cere- bral cells is manifested in more practical and useful ways, but still in the most tangible results of a success- ful b u s i n ess, mechanical or professional life, we recog- nize the out- ward manifes- tation of the po- tential energy which has been stored up with- in the brain- cells until the proper stimula- tion called forth its discharge. This intimate relationship be- tween muscu- lar movement and central cell- activity withifl the cerebrum, has been dis- cussed in Dr. Francis War- ner's interest- ing volume on "Physical Ex- pression," and in a recent article by the same author in the Journal of Mental Science for April, 1889. This author calls attention to the fact that these outward manifestations of central cell-activity begin at birth, and are witnessed in the countless random and mean- ingless move- ments of in- fancy, to which he has given the name of mi- crokinesis. Un- doubtedly at a very early age healthy inhibi- tion of muscular movement b e - gins. One by one useless and superfluous movements are checked, elimi- nated, or co-ordi- nated in such a way that when adult life is reached, the in- dividual, if in health, mani- fests those mus- cular activities which subserve the general pur- poses of the will and intelligence. Even at this period of life many movements remain, ful- filling no particular purpose, but representing mere auto- matic cell-activity which has either been acquired by the individual or transmitted to him by heredity. The vari- ous movements of the facial muscles, including the tonic contractions already referred to, and which, in their to- tality, form the individual physiognomy, belong to this automatic and acquired class. In diseased conditions of the brain, however, the pathological irritation of these delicate nerve - cen- tres may be so great as to over- come any ac- quired i n h i b i- tory resistance, and thus liberate an e x c e s s of nerve-force which will seek an outlet in the usual way by passing along the efferent motor tracts to the muscles, and there appearing as muscular movement. Thus it is that in the functional or organic brain disturbances of insanity, abnor- mal motor activ- ities are a fre- q u e n t accom- paniment of dis- turbed states of mind. Pathological motor activity is, as we have seen, spas- modic, irregular, and purposeless. The most striking illustration of this fact is afforded by cases of chorea and epilepsy. There seem to be good reasons for supposing that in these diseases the brain-cells are in an unstable condition, owing to hereditary, traumatic, or nutritive Fig. 332.-Case of Periodical Melancholia. (From Kirchoff's Handbook.) Fig. 330.-Folie Circulaire. B, Exhilarated stage, when countenance has returned to a more normal condition. (From Kirchoff's Handbook.) Fig. 333.-Case of Dementia. Oculardiverger.ee due to suspension of the attention and lack of ideation. (From Kirchoff's Handbook.) Fig. 331.-Case of Periodical Melancholia. (From Kirchoff's Handbook.) 517 Insanity. Insanity. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) disturbances, and that, as Gowers says, the discharge of these same cells " may depend on the production of force within being increased in excess of the resistance, or on the resistance being duly lessened" (''Epilepsy and other Chronic Convulsive Diseases," p. 213). In the active stages of mania and melancholia, in the acute excite- m e n t w h i c h sometimes oc- curs in paresis and other or- ganic diseases of the brain, this same dis- charge of nerve•force takes place. The unceasing jactitation of acute mania, the restlessness of melancholia, are familiar il- lustrations. Such patients are apt to be ina state of constant muscular activ- ity, pacing the floor, tearing their clothing, and destroying whatever comes in their way. These irregular and motiveless movements of the in- sane are earliest manifested in the facial muscles. The extreme sensitiveness of this region to cerebral condi- tions, and the weaker inhibitory control which the brain possesses over these delicately poised muscles, are rea- sons why the face so often presents the first physical manifestations of the advancing mental disease. Very frequently the mus- c u 1 a r disturbance does not extend be- yond the face ; but it is quite rare that this region does not show some evidence of the morbid irritation of the brain-cells. When the face alone is disturbed in this way, the resulting ex- pression is quite pe- culiar, and resembles those meaningless contractions that are produced when a mild galvanic current is passed through these muscles. The muscles are gently but continuously con- tracted, particularly those about the fore- head, at the root of the nose, and about the mouth, giving to the patient a pecul- iar kind of troubled or anxious expression. It is often noticed by the friends at a very early stage of the disease, and they will tell you that the patient does not look natural, that his countenance has a strained, intense look, quite different from his normal expression, but still very difficult to describe. This particular region about the forehead, above and between the eyes, and at the root of the nose, is the first to bear evidence of psychic pain or distress, and, indeed, of mental excitement of any kind. Nearly all writers on physiognomy speak of the important role sustained by the frontal region in the development of facial expres- sion. Some attribute this fact to the nearness of the part to the regions of thought and mental activity in the brain, and cite as one evidence of this the fact that we all in- voluntarily rub or press this space above and between the eyes when we are perplexed. The act of rubbing re- lieves, in some way, the unpleasant tension which we feel at such times. It is not at all improbable that the nerve-force, liberated by the increased activity of the an- terior convolutions of the brain during active thought, is transmitted from the cortical centres to these muscles and occasions that slight feeling of tension, which is undoubt- edly relieved by rubbing. The peculiar action of the "grief-muscles" in melan- cholia has already been discussed. It is somewhat sin- gular that these same muscles are called into action in other states of mind than those of morbid depression. States of mental confusion, of mania, with exhilaration, often stimulate the grief-muscles into activity. Illustra- tions of this are afforded by Cases XXXIX. (Fig. 335, A) and XLII. (Fig. 337, A). In these last cases Fig. 334.-Case of Melancholia. Self-absorption, ocular divergence, and contraction of "grief muscles." (From Kirchoff's Handbook.) Fig. 336.-Case XXXIX. B. Taken at time of discharge and recovery. Disappearance of morbid innervation, improved nutrition. (From photograph taken by author.) we may believe that the cell irritation of the cortex transmits nerve-force in the direction of the so-called grief-muscles, since, through repeated use, that channel affords the readiest outlet. Or, it may be that this disturbed and anxious look so often seen in different phases of insanity is due to a feeling of displeasure awak- ened in the mind of the patient by the opposition to his plans and delusions, which he so frequently encounters in those about him ; and this sense of displeasure and dis- appointment has its usual manifestation in the muscles that reflect these emotions. However this may be, the frontal region, including the eyes and space between them, is, through contiguity to the brain, the most expressive part of tiie face, and the nerve-muscular activity of insan- ity finds there its earliest and most persistent reflection. Returning to the illustrations, we find that the por- traits of Cases XXXIX. and XLII. illustrate the pecul- iar muscular contractions already referred to, and which proceed from the brain irritation of mania in different degrees of intensity. Case XXXIX. was transferred to the asylum from the prison. Six weeks before his re- moval to the asylum he began to be careless in his work, Fig. 335.-Case XXXIX. Acute Mania. A. As he appeared on arrival at asylum from prison. Morbid innervation of fa- cial muscles. (From photograph taken by author.) 518 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Insanity. Insanity. and was supposed to be refractory. He was placed in solitary confinement, but while in this situation he began to develop hallucinations of sight and delusions of exalta- tion, thinking he was Christ. On his arrival at the asy- lum he was quite deluded, slightly incoherent, and ex- hilarated. Fig. 335, A, shows his appearance at this time. The compressed lips, the almost bristling hair, deep fur- at a distance of thirty or forty feet. Warner thus alludes to this symptom : " Tooth-grinding is produced by the action of the deeply situated pterygoid muscles ; champ- ing of the jaws is produced by the masseter and temporal muscles; all these muscles are supplied by the fifth nerve, and it is to their condition that we must look for information as to the condition of the central origin of the nerve." By means of the Casserian ganglion and small nerve-filaments branching from it, the fifth nerve is brought into intimate connection with the dura mater and adjacent membranes. In chronic insanity associated with dementia these membranes are nearly always found to be in a pathological condition. It is quite natural, therefore, that morbid sensations should be transmitted from these diseased membranes, through the sensory branches of this portion of the fifth nerve, back to its origin in the pons varolii and medulla, and thence be re- flected outward along its motor tract to the pterygoid and masseter muscles. In many cases of maniacal excitement attention has been called to the dry, rough, and almost bristling condi- tion of the hair. In those patients who have recovered from mania the hair resumes its normal condition, is softer, and more easily kept in place. Illustrations of this are seen in Cases XXXIX. (Fig. 335) and XLII. (Fig. 337). In chronic, or in recurrent mania the dry and brist- ling state of the hair is of common occurrence. One case under the writer's observation, a woman, was character- ized by exacerbations of excitement, and at these times her hair was exceedingly dry and stood out in a striking way all about her head and face. In two cases the hair was naturally curly but, as one result of the active mental excitement, there seemed to be imparted to it a stiffness quite different from that produced by the curliness; each individual hair, during the period of excitement appeared to have a special prominence of its own. This singular condition of the hair, in states of active mental excitement, has been alluded to by Darwin in his " Expression of the Emotions in Man and Animals." His explanation, which is undoubtedly correct, affords another illustration of excessive nerve-muscular activity following cerebral cell irritation Every hair-sac is pro- Fig. 337.-Case XLII., Acute Mania. A. Taken during active stage. Morbid innervation, trophic alterations, neglect of personal appear- ance. (From photograph taken by author.) rows in the skin extending from the alae nasi to the corners of the mouth, the lowered eyebrow's, and deep wrinkling between the eyebrows at the root of the nose and on the forehead, illustrate what has been referred to as a "troubled " expression, and show how the centric ir- ritation has been communicated to the muscles of the face. Fig, 336, B, giving the face of the same individual at time of recovery, presents a most marked contrast. The smooth brow and forehead, the clear, open eye, and natural position of the mouth, all indicate, more clearly than words can express, the subsidence of the storm with- in the cerebral centres. In Case XLII. (Fig. 337), the patient was entirely inco- herent, and in a state of constant muscular agitation. He was destructive, and almost too confused to eat his meals, so that frequent feeding with the nasal tube be- came necessary. The staring eyes, wrinkled forehead, dry, dishevelled hair, and torn coat are in striking con- trast with Fig. 338, B, in which the hair has assumed its natural condition, the face is smooth, and the eyes are calm and quiet. In cases of melancholia with motor disturbance we see the effects of central irritation reflected in muscular agi- tation. Sometimes the patient will pace the floor wring- ing the hands, groaning and moaning, or the excitement will become so intense as to lead to an impulse to tear or destroy whatever comes within reach. In many cases of chronic insanity almost constant tooth- grinding is a noticeable feature, and another illustration of morbid transmission of nerve-force from the central cells to the muscular periphery. Tooth-grinding is not uncommon in nervous children, and is of very frequent occurrence in the insanity proceeding from structural brain disease. It is noticed oftener in connection with paresis than with any other disease. In passing through wards for demented patients it is a familiar sound, and sometimes is made with such force that it can be heard Fig. 338.-Case XLII., B. Taken at time of recovery. (From photo- graph taken by author.) vided with delicate unstriped muscular fibres-arrectores pili. These minute involuntary muscles are exceedingly liable to contract under the influence of strong emotions, such as fear and anger, as wTell as from the effects of cold. The contraction of these muscles causes a more or less complete erection of the hair shaft. Darwin con- cludes that " the erection of the dermal appendages is 519 Insanity. Insanity. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) a reflex action, independent of the will ; and this action must be looked at when occurring under the influence of anger or fear, not as a power acquired for the sake of some advantage, but as an incidental result, at least to a large extent, of the sensorium being affected " (Op. cit., p. 102). In the active mental excitement of mania, acute or chronic, persistent irritation of the cerebral cell-structure leads to the transmission of nerve-force along this chan- nel to the arrectores pili-all the more readily because the natural emotions of fear and anger have made this a cus- tomary route. Hence in those forms of insanity which are accompanied by excessive nerve-muscular activity this erection of the hair is an almost inevitable result. This condition of the hair is only seen in those forms of mental disease characterized by active excitement, or marked emotional disturbance. The bristling and erec- tion is intensified by the dryness and roughness of the hair due to the impaired action of the subcutaneous glands. Darwin also informs us " that with man the hairs on the front of the head which slope forward, and those on the back of the head which slope backward, are raised in opposite directions by the contraction of the oc- cipito-fronlalis or scalp muscle " (Ibid., p. 297). This mus- cle is, as we have seen, often kept in a state of unnatural tension in conditions of pathological cerebral excitement, and hence its action would assist the arrectores pili in maintaining an erect and bristling state of the hair. The study of the portraits calls for a slight digression on the significance of the wearing apparel of the insanei When we consider its neglected, disarranged state, its unique and oftentimes bizarre arrangement; when we contrast the general appearance of the clothing of many of the acute and chronic insane with what we know is characteristic of mental health, then we become impressed with the fact that this matter of the condition and ar- rangement of a patient's clothing may be of diagnostic or even prognostic value to the alienist. Even in health our estimates of individual character are assisted by ob- servation of the condition and general style of a person's clothing, so closely related to our inner selves have these outer vestments become. Carlyle, in " Sartor Resartus," made no mere imaginative allusion when he asked the question : " How, then, comes it, may the reflective mind repeat, that the grand tissue of all tissues, the only real tissue, should have been quite overlooked by science, the vest- ural tissue, namely of woollen or other cloth ; which man's soul wears as its outmost wrappage and overall; wherein his whole other tissues are included and screened, his whole faculties work, his whole self lives, moves, and has its being ? " In observing the condition of the clothing of the in- sane we shall have additional evidence for believing that this " outmost wrappage " may partially reflect the mental and moral state of the individual. For this reason no especial attempt was made in the taking of the various portraits to arrange the wearing apparel for appearance' sake. Many of the views reproduced in this article were taken in the ward, so as to secure a true likeness of the individuals as they appeared at that particular moment. In all forms of mental disease accompanied by motor disturbance due to excessive and irregular transmission of nerve-force from the brain-cells, we find that the re- sulting muscular agitation causes the clothing to be dis- arranged and disorderly, oftener it is torn and partially destroyed. In acute mania, and in the melancholia ac- companied by restlessness, the cases to which we have already referred illustrate what has been said about the condition of the clothing. One of the great difficulties encountered by asylum officers is the tendency manifested by the active insane to tear and disarrange their cloth- ing. This is only one way in which nerve-force, gener- ated in excess of inhibitory resistance, seeks an outlet. In cases of mental failure, such as dementia proceed- ing from chronic insanity and organic brain disease, the clothing shows neglect, is often untidy unless personally cleansed by another, and seems to hang from the person rather than fit his form. A party of demented patients may be recognized at a distance by the very hanging of their clothing. The absence of healthy muscular resist- ance, the sluggish gait, drooping shoulders, pendent arms and hands, give to the outer garments a peculiar and almost indescribable appearance, which once recognized cannot be forgotten. It would seem as though the gen- eral lack of healthy muscular tonicity, the flabby state of the entire muscular system, characteristic of this form of mental disturbance, had been communicated to the cloth- ing. The subject of personal attire among the insane should not be dismissed without a passing allusion to the pen- chant which many of this class exhibit for fantastic dress. In some forms of subacute mania, of the active stage of recurrent mania, or in some cases of mild chronic mania, and noticeably among many of the chronic delusional in- sane, there is quite frequently exhibited a passion for bright colors, and for personal decoration of a fantastic character. Artists and dramatists, from the earliest times, have always heightened the effect of their portrayal of insanity by representing the insane as peculiarly decorated with straw, flowers, feathers, or rags. Thus Shakespeare makes Ophelia enter " fantastically dressed with straws and flowers." And in King Lear, Cordelia, when reflect- ing upon her poor insane father, says : "Alack 'tis he ; why. he was met even now As mad as the vex'd sea, singing aloud ; Crown'd with rank fumiter. and furrow weeds, With hardocks. hemlock, nettles, cuckoo-flowers, Darnel, and all the idle weeds that grow In our sustaining corn." Aside from all exaggeration due to the license univers- ally granted the poet and painter, there is an actual scien- tific foundation for this time-sanctioned portrayal of in- sanity. It is a matter of common occurrence in asylums for the insane to see patients, suffering from the above- mentioned types of the disease, pick up shining bits of tin, brass, or glass, or brightly colored cloth, and use the same as a decoration for the hair or clothing. Such pa- tients often attach a great value to these worthless ma- terials. While it cannot be said that this tendency for fantastic decoration is always an indication of chronic insanity, it is frequently associated with that form of mental disease. Nearly every asylum contains, among its old residents, some who have made themselves con- spicuous for years by the odd and fantastic decoration of their dress ; and were it not deemed inadvisable to allow this passion for odd display to be carried too far, such cases would be far more numerous and their costumes much more striking than is usually the case. Cases XII. (see page 515) and LIV. illustrate the ten- dency for striking and fantastic display, notwithstanding that in each of these patients an attempt was made to re- duce it to a minimum. Case XII., one of chronic mania or paranoiac insanity, manifested a marked fondness for sensational display. In sitting for his portrait he ar- ranged his regalia with the greatest care, wishing that his various pins, "precious stones and diamonds," as he called them, should all be included in the photograph. Case LIV., chronic mania with marked delusional exal- tation, always decorated herself in some fantastic manner. At the time the portrait was taken she had evidently taken the greatest pains to produce an effect with her hair and also with the handkerchief which is elaborately displayed on her dress. The peculiar cap was made out of worsted and cotton cloth ravellings, and was considered by her to be a very choice ornament, and in some way a badge of her superiority. She entertained the delusion that she was Christ, the Virgin Mary, and that she had un- limited power. The portrait of this patient is also inter- esting as showing the marked inhibitory control that ex- ists in the midst of great incoherence of idea and language. No sane person could prove a better poser for her photo- graph than this very excitable insane woman. The variety of fantastic decoration that one meets in an asylum is almost endless. The interesting query sug- gests itself whether this singular fondness for adornment 520 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Insanity. Insanity. noticed among the insane is anything more than an exaggeration of a natural proclivity common to mankind generally. In health the desire for personal decoration has certain well-defined limits prescribed by fashion and common sense ; but as a result of mental disease this same natural desire is no longer controlled by a healthy judgment and inhibition, and hence this fantastic, gro- tesque, and odd display. II. Physical Expression of the Insane Caused by Deficient Nerve-muscular Activity Due to Central Degeneration.- Deficient nerve-muscular activity plays a prominent part Some of these varying degrees of mental weakness are noticeable in nearly all cases of persistent and long-con- tinued insanity, and many cases of acute insanity do not recover so perfectly but that a slight amount of mental damage may be detected. Unfortunately, our knowl- edge of the pathological anatomy of the brain is so lim- ited that we cannot with precision locate the specific lesion corresponding to the various forms of mental dis- ease. It is generally assumed that the pathological con- dition is one of degeneration consequent upon hyperae- mic and inflammatory processes, or upon inflammatory changes succeeding malnutrition of that delicate organ. Whatever the pathological alterations in the brain-cells may be, varying degrees of motor impairment constitute one very constant result in all cases of chronic insanity attended with mental weakness. We have already no- ticed how excessive nerve-muscular activity character- izes nearly all attacks of acute mania, as well as the excited stage of paresis, and the temporary exacerbations of excitement occurring in dementia. In these cases the nerve-force is discharged in excess of the power of resist- ance, either because the inhibitory power itself is dimin- ished, or because there is an excess of nerve-force gener- ated within the nerve-centres. On the other hand, in cases of persistent and long-continued acute insanity, as well as in chronic insanity associated with the varying de- grees of dementia above mentioned, deficient nerve- muscular activity is a prominent symptom. And the inference seems a legitimate one, that this deficient nerve- muscular activity represents or corresponds to certain degenerative processes occurring within the brain-cells. This deficient nerve-muscular activity varies from the slightest motor impairment in a few of the delicate facial muscular strands, to an extreme degree of general mus- cular paresis. Griesinger says : " The most important circumstance in regard to anatomical diagnosis and to prognosis is the existence or non-existence of severe motory disorders, in particular, of general progressive paralysis." We might add that the slighter motor impairments have a very im- portant bearing upon the diagnosis and prognosis of the patient's mental condition. In nearly all cases of demen- tia secondary to acute or chronic mental disease, there are evidences of this motor impairment. It is not unlikely that if we possessed instruments for accurately gauging the degree of intensity of motor force in individual mus- cles in patients suffering from dementia, we should find a much larger deficiency than we realize by our present methods of observation. This deficient nerve-muscular activity represents im- perfect or weakened innervation on the part of the central organ-the brain. All nervous tissue is en- dowed with one peculiar property, that of sensibility. By means of it, " the nerve-cells feel excitation from with- out, and react in consequence, by virtue of the excite- ment of their natural affinities" (Luys, "The Brain and its Functions," p. 81). Impaired sensibility of the nerve-cells is a frequent result of protracted" attacks of acute insanity, and a constant accompaniment of the various forms of dementia. And in such cases there is imperfect reaction to the various sensory stimulations which, in health, are being constantly transmitted from the periphery to the higher nerve-centres of the brain. Dementia is characterized by imperfect responsiveness to external impressions. It is difficult to arouse and interest such patients. They care little for their sur- roundings ; they eat and sleep, but their energy seems lost. They lie or stand around in a listless way, and oftentimes it is necessary to speak to them in a louder voice in order to attract their attention. Impaired nervous sensibility is attended with imperfect motor reaction, probably for the reason that the afferent * and efferent tracts do not transmit impulses to and from the brain as readily as in health, and also because the brain-cells themselves are less sensitive. Those regions which, in health are most responsive to this excitation are very apt to be the first to become affected in diseases of the central nervous system. For this reason the face, in the earliest stages of dementia, begins to show evi- Fig. 339.-Case LIV. Chronic Mania. Showing exaltation, fantastic decoration, etc. (From photograph taken by author.) in the etiology of the physical expression of insanity. A recognition of its existence in any case frequently en- ables the physician to make a correct diagnosis and prognosis of the mental disease affecting the patient. In nearly all forms of chronic insanity accompanied by mental enfeeblement, deficient nerve-muscular activity corresponds to the degree of mental impairment. Dementia is the sad termination of all chronic, as well as of many of the acute, insanities. The degree of the dementia varies with individuals, and no definite rule can be given which will indicate just how rapidly or to what extent mental weakness will advance in any par- ticular case. Sometimes the impairment of mind is very slight, the individual not being incapacitated from living at home and enjoying a fair amount of personal liberty, and per- forming many acts of life fairly well. Again, the deteri- oration of mind is such that the patient is incapable of sus- taining the responsibilities of life outside an asylum, and yet is made very comfortable by the regularity, intelli- gence, supervision, and mild restraint of the hospital. Indeed, under careful direction, such patients come to be capable of performing a certain amount of fairly skilled labor. In still other cases, however, the mental impairment has advanced so far that not only is the hos- pital the only proper and safe residence for the patient, but his entire life in such an institution is helpless and unproductive. He becomes a veritable wreck in which only the slightest semblances of mind can be detected, nearly all the acts of whose life have become purely automatic and vegetative. 521 Insanity. Insanity. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. deuces of impaired innervation. The lines about the eyes, the forehead, and the mouth, which were formerly well defined and which represented the healthy muscular to- nicity already referred to, begin to lose their precision and appear to be smoothed out. The peculiar pose of the features, due, as we have seen, to the continuous transmission of nervous force along the various efferent nerve-tracts to the muscular periphery, and which gives what we call character to each individual countenance, seems to have lost its definiteness. As a result the face begins to lose its expression, and in the very earliest stages of the disease constitutes a painful symptom for the friends to behold, and leads the physician to make a grave diagnosis and prognosis. This defective nerve-muscular activity, which is first manifested in the faces of demented patients, in time ex- tends to the larger muscles of the extremities. Demented patients become clumsy, and if good mechanics, gradually lose the muscular precision whicii formerly characterized their work. Quite frequently such individuals are obliged to give up a certain line of skilled labor in which they formerly excelled, and undertake a less exacting branch of the work, or renounce it entirely before it becomes fully apparent that their mental health is being serious- ly undermined. At a still later stage of the disease the muscles of locomotion become impaired, and the patient grows clumsy in gait. In the wards for demented patients in a large asylum, one is struck with the slow, lumbering gait of the patients, with their lifeless attitudes and the general absence of healthy muscular activity which is evident on every side. A party of demented persons is easily recogniza- ble at a distance. Their muscles, like their clothing, seem to hang, and there is none of that elasticity of move- ment characteristic of health. This progressive muscular failure is quite noticeable in the cases of terminal dementia, which constitute so large a proportion of the population of public hospitals for the insane. Oftentimes these patients are under ob- servation for years. In the earlier stages of their asylum residence they are capable of performing much manual labor. Gradually, as their dementia advances, they be- come less capable of sustained work ; they may grow fleshy, but their muscles become weaker and more unre- liable ; and finally they cease to be efficient workers, and spend their time in the ward or on the grounds, lying and lounging about in a listless way. In these cases there is a real failure in nerve-muscular force, which is represented by an inability to enter into mechanical em- ployment, as was formerly their wont. In cases of structural brain disease the order in which failure of muscular innervation occurs is quite interest- ing, and has already been referred to. First the muscles about the mouth begin to show weakness; then those about the forehead and between the eyes ; later, the ar- ticulation begins to fail and to grow more thick and indistinct; and the muscles of deglutition respond so feebly to innervation that the act of swallowing is ren- dered clumsy and difficult, and the patient is in danger of choking. Finally, the larger muscles of the extremi- ties begin to weaken ; the drooping head, shoulders, and arms, and the shuffling, clumsy gait indicate the steady progress of the brain disease. Warner says : " In a strong and healthy man the head is held erect and symmetrical, unless some central con- dition or external agent changes the posture. In a strong man the centre of the forehead is in the mid-plane of the body, the antero-posterior and the transverse axes are horizontal, with both eyes on the same level; this is a normal position of quiescence " ("Physical Expression," International Scientific Series, p. 185). In cases of progressive dementia, in the advancing stages of paresis, this failure of innervation is quite com- monly seen in the drooping of the head. In many cases the lower jaw drops on account of re- laxation in those muscles which support it ; this gives to the face an elongated expression, and quite frequently oc- casions the open, stupid-looking mouth so often seen in dementia (Fig. 340). (SUPPLEMENT.) Defective innervation, as we have seen, finally extends to all the muscles, and produces that peculiar drooping of the body, shoulders, arms, and even fingers, and that almost indescribable, but when once seen never-to-be-for- gotten, clumsiness of gait and attitude so characteristic of demented patients. III. Physical Expression of the Insane, Caused by or Representing States of Automatic Cell-activity in the Cere- brum, Occurring not Infrequently in Acute Insanity, and Quite Constantly in the Chronic Forms of the Disease.- The subject of automatic nerve-activity is so well under- stopd that any extended allusion to it would be super- fluous. It has been a matter of frequent physiologi- cal observation, that all nerve-structure manifests a tendency toward automatic activity. This attribute in- herent in nerve- tissue is notice- able in the low- est forms of animal life pos- sessing only the simplest and most rudiment- ary suggest ion of a nervous sys- tem. The ascid- i a n illustrates the peculiar me- dian ical and automatic action of a very simple organism that is wholly unprovided with anything like conscious- ness. In this animal crude, imperfect sensa- tions are trans- mitted from its periphery through afferent nerve-fibres to a solitary ganglion ; a motor impulse is thus originated in the ganglion, and, being reflected outward to the muscu- lar fibres of the animal's outer sac and orifices, produces in these parts a simple contractile movement. This sim- ple movement is entirely involuntary and reflex, and, upon the presentation of the proper stimulus, is always repeated in identically the same way, during the life of the ascidian. As we ascend the scale of animal life the nervous sys- tem becomes more complicated ; entire regions are spec- ialized, one part becoming subordinate to another until we reach man, in whom the completest subdivision and specialization has been attained. In him the higher cen- tres in the anterior cerebral region preside over the nerve- structures below, both in the brain and cord. But these more highly specialized centres of the human brain man- ifest the same tendency to automatic and mechanical activity. In one respect, however, man differs from other forms of animal life. His will-power presides over and directs those various processes which in the lower animals are not only automatic and instinctive, but are largely invol- untary. In man a few of the activities of organic life- such as respiration, the beating of the heart, and the like-are transmitted at birth fully established and are entirely independent of the will. Other processes, such as walking, writing, etc., are acquired after a most care- ful direction of the will and laborious practice, and then become automatic. Still other higher processes, such as the psycho-intellectual activities of the individual, while under the guidance of the will, conform to the universal law of automaticity. Thought runs in certain well-es- tablished channels, and "mechanism in thought and morals " is as susceptible of proof as the mechanical action of the heart or the lungs during the processes of Fig. 340.-Case of Progressive Dementia. Drop- ping of lower jaw on account of relaxation of the muscles which support it. (From KirchofFs Handbook.) 522 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Insanity. Insanity. circulation and respiration-the only difference being that volition directs these intellectual and acquired activities. A high volitional power, therefore, distinguishes man from the lower animals. Even the most highly devel- oped of these lower orders possess limited volitional powers. In them life is largely automatic, and distinct purposive direction of their actions is slight. Many of their acts that seem to display a high degree of intelli- gence and to suggest the power of voluntary selection, prove, on close examination, to be merely the result of an unreasoning instinct which would not have admitted of any other course. In man, on the contrary, while his daily life is largely made up of various automatic activ- ities, still the range of purposive selection is large, so that the " mechanism of thought and feeling '' is made to serve the best interest of the individual through the guidance of the will. In some way, at present obscurely understood, will- power and functional activity of the cortex are mutually interdependent. Hence disturbance of these centres in insanity, caused by impaired nutrition, defective func- tional activity, or more gross structural lesions, weakens the will-pow'er of the individual. The functional activity of the cortical centres may be completely disarranged by insanity, and, as a result, the normal exercise of the will may be disturbed, if not entirely suspended. At the same time, however, the activities of the basal ganglia, no lon- ger under the guiding and controlling influences of the cortical centres, continue automatically. As a result, purposeless thought and action of an automatic character is quite apt to follow those serious disturbances of the higher cerebral centres during attacks of severe acute and chronic insanity. Automatic activity of the cerebral centres in health is subject to the direction of the will, and its results display purpose. Automatic activity of these same centres in disease of the mind seems to be less under the guidance of the will, and the resulting action appears purposeless. In proportion as the will-power is weakened by the brain disease, do meaningless automatic activities of thought and action prevail. In passing through the wards for the chronic and de- mented insane, one is struck with the evidences on every side of automatic activity. Here you will notice a man walking backward and forward in a mechanical way for hours together, until he has worn a beaten path in the floor ; there will stand one who picks away at a certain place on his clothing for an indefinite period, until he has worn the garment through to the skin. Quite frequently one will hear curious meaningless noises repeated in a mechanical way-singular repetitions of certain words or sentences wholly meaningless. It is not an uncommon thing for chronic patients to have some peculiar word or phrase, or even a single articulate sound, and to repeat it in an irrelevant way for years. In like manner you will meet with patients who make strange motions with the arras and hands, and take singular attitudes in a mechan- ical way. It is difficult to arouse the attention of such patients ; their monotonous repetition of words and move- ments continues just the same, regardless of the presence of others, and with little reference to any attempts made for their diversion. All this variety of automatic action and speech would seem to indicate that the healthy func- tional activity of the higher cerebral centres has been disturbed anil partially suspended, and that the lower centres are acting mechanically and without the normal volitional control. Prolonged automatic activity in thought, speech, and action, among the insane, suggests a serious lesion in the higher brain. The more mechanical and purposeless the words and acts of the patient, the graver is the prognosis. The nervous system manifests a striking tendency to mechanical repetition of any process once initiated within its centres. One epileptic attack is likely to be followed by another, and a number of seizures renders the pros- pect of still others quite certain, until in a short time the disease becomes firmly established. Both mania and melancholia manifest tendencies to repetitions of the attack, and each new attack renders the probability of (SUPPLEMENT.) another quite certain, until recurrency or permanent in- sanity is established. In the advanced stages of fevers, such as typhoid and scarlatina, the higher functions of the mind are often suspended, either from exhaustion, or because the cortical centres have been disturbed by the severity of the febrile action. In these grave physical conditions the automatic and purposeless repetition of words and muscular move- ments becomes quite noticeable. Subsultus tendinum, carphologia, tiresome utterance of some particular sound or word, indicate that the higher cerebral functions have been suspended, and that the lower centres are acting at random and without the direction of the former. In this case the prognosis is grave because the vital forces them- selves are waning and volitional activity is suspended through exhaustion of the cortical centres. In chronic insanity the prognosis as to mental recovery of the patient may be equally grave, for the reason that healthy functional activity of the cortex has been per- manently disturbed by the disease, which, though not necessarily fatal to life, is most assuredly so to mental res- toration. For the reasons just outlined the chronic insane are very likely to develop objectionable habits. The study of the physiological origin of many of the habits of this class of the insane would be most interesting and instruc- tive. Two laws underlie every form of nervous activity, and furnish a physiological reason for the constant ten- dency toward automatic and habit action exhibited by the chronic insane in whom inhibitory impairment al- ways exists. 1. The discharge of the nerve-centres oc- curs along those tracts which offer the least resistance. 2. The more frequently the discharge occurs along a given line, and the weaker the inhibitory resistance, the easier does a repetition of the discharge become, and the more certain its permanent automatic establishment. If, for any reason, in those conditions of mental dis- ease characterized by a weakening of the will-power, one especial route is established either by reason of delusion, or mere fortuitous circumstance, the probability is that this particular route will continue to be the one most frequently traversed by nervous force in its passage from the brain to the periphery. A delusion, an hallucina- tion of sight or hearing, some peculiar condition in the patient's environment may have first initiated certain ac- tions which, by being unresisted, and hence repeated, lead to the establishment of a habit. Probably in some such simple and purely fortuitous way are developed the pull- ing out of the hair, tearing the clothing, walking in a beaten path, making singular motions or uttering mean- ingless sounds-in fact any of the countless strange habits of the insane. It matters little whether the performance of these habits is painful or disagreeable, no other alterna- tive seems open to the patient when, through weakness of will and intelligence, the morbid route has once been established. Some morbid sensation in the scalp or chin to act as an excitor, or merely the absence of anything of an intelligent character to engage the attention, may lead to the plucking out of the hair or beard, which impulse, meeting with no resistance, soon develops into a per- sistent habit. A delusion about the bed may lead the patient into the habit of standing up all night, and if not interrupted, nothing short of restraint will prevent ex- haustion, so persistent will the impulse become to remain on the feet. The importance of the early breaking up of bad habits among the insane will be readily understood. Fortu- nately the same tendency to automaticity of action may be utilized in a good as well as a bad direction. By care- ful supervision we may succeed in breaking up many useless and vicious habits by supplying some simple me- chanical occupation for the hands, thereby utilizing the automatic nerve - activity characteristic of the disease. And in doing this we may even seem to retard mental deterioration. Judiciously selected, mechanical employ- ment among the insane has become therefore a valuable means of treatment. It is quite obvious that photographic illustration of the entire subject of automatic nerve-activity is impossible, 523 Insanity. Insanity. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. and yet enough in this direction may be shown to de- monstrate the important part played by morbid automatic cell-activity in the physical expression of chronic insanity, and, to a certain extent, in some forms of acute aliena- tion. It is evident that illustration of this part of the subject must be limited to postures. The significance of postures in health has been referred to by Dr. Francis Warner in an article on " Muscular Movements in Man," in the April number, 1889, of the Journal of Mental Science. He says : " Postures depend upon the ratios of nerve-muscular action, and to some extent they indicate the present ratios of static efferent force proceeding from the centres concerned. Observations show that the post- ures, when not due to a present stimulus, or when pro- duced by a weak stimulus from without, such as a sound or sight, correspond to and are signs of the general con- dition of the central nerve-system." The postures maintained, oftentimes for long periods, by the insane possess a special interest because they are a pretty sure index of the morbid condition of the central organ of innervation. Cases LI., LVIII., and LX., illustrate peculiar and somewhat painful attitudes which were taken by patients suffering from secondary or terminal dementia. And in Case LXV. is seen a singular position maintained by a patient in a condition of stuporous melancholia. In these (SUPPLEMENT.) terial for physiological and psychological study. The careful investigation into the early development of me- chanical movements, attitudes, and meaningless habits among this class of patients, would amply repay the time and labor expended in this direction, and throw some Fig. 342.-Case LVIII. Chronic Dementia. Peculiar and uncomfort- able attitude maintained daily for years. Automatic nerve-muscular activity. (From photograph taken by author.) light on the processes of cerebration and their connection with muscular movements. The singular postures shown in the photographs of Cases LI., LVIIL, and LX., were gradually assumed by the patients while under the writer's care, and yet so very slowly were they initiated that they became fixed and habitual positions before any especial attention was called to the fact. In this way the real causes that led up to the final establishment of the habitual posture were lost sight of. From what was known of the patients, the im- pression would be readily formed that in Cases LVIIL and LX. delusions of suspicion or a dislike to seeing per- sons about, led to a habit of hiding the face, as is often witnessed among bashful and diffident children. As these particular patients became more demented, a posi- tion which was at first assumed as the result of an active delusion finally developed into a permanent habit, simply because nervous force, flowing along this route from centre to periphery for so long a time in obedience to impulses derived from morbid ideas, and meeting with little inhibition, continued to take this route long after active thinking had ceased. Fig. 341.-Case LXV. Melancholia with Stupor. Showing persistent morbid attitude maintained for hours. (From photograph taken by author.) and similar cases the intensely interesting question is al- ways suggested, how came such peculiar habits to be initiated? The wards for demented patients will present numerous cases of this character which will afford ma- 524 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. I nsanity, Insanity. Another interesting fact concerning these strange atti- tudes assumed by these patients is, that they seem utterly oblivious to the discomfort and even the painfulness of these constrained positions. Cases LI. and LX. would maintain the posture for hours ; and Case LVIIL, from (SUPPLEMENT.) Schack, with earnest enthusiasm, says : "The eye is the most immediate and most delicate point of transition between body and soul; it is the most interesting and most spiritueUe part of the physiognomy, and has been rightly called the mirror of the mind. Brilliant or dull, it contains remembrances of the past and enables us to prophesy of the future. Joy gives it clearness, sadness and grief fill it with shadow ; it speaks a language which sympathy understands at once without the aid of words or a dictionary" (" The Physiognomy in Man and Ani- mals," p. 76). In speaking of the expression of the eye physiogno- mists generally allude to the eyebrows, the eyelids, and those parts immediately surrounding the organ as well as the eyeball itself. Indeed, it would be difficult to do otherwise, so intimately associated are the muscular movements of these various parts, and so actively do they all enter into what is commonly called the expression of the eye. Schack, in an interesting chapter on the eye, gives several pictorial illustrations which are intended to represent that organ in the varions states of joy, anger, revenge, shame, and so forth. In these sketches it is noticeable, however, that the expression owes its indi- viduality, in nearly every instance, to the position of the Fig. 343.-Case LI. Chronic Dementia. Showing peculiar and uncomfort- able attitude assumed by demented person as a result of morbid and per- sistent nerve-muscular activity. (From photograph taken by author.) the hour of rising until bed-time, was continually in the attitude shown in the photograph. The muscles con- cerned in the maintenance of these postures were in a high state of tension, showing that a certain amount of " static efferent force " was being transmitted continuously from the centres within the sensorium to the periphery over these morbidly pre-established routes. Nearly all the other healthy activities of mind seemed in these cases to have ceased with the exception of the mere processes of organic life, and the entire energy of the sensorium was expended in keeping up these automatic and useless positions. Any attempt to move the arms into a more easy position was met by firm resistance, which was not spasmodic but persistent in character. That these atti- tudes would be painful to a person in health, anyone can demonstrate by attempting to maintain similar positions for even a few minutes at a time. There remain for consideration the various positions and expressions of the eye as modified by insanity. These, though largely dependent upon the different pathological conditions already discussed, still are de- serving of separate mention. Every writer upon physiognomy gives great prominence to the eye as an agent in expression. Bell, in his "Anat- omy of Expression,'' has said : "The eye is the most lively feature in the countenance ; the first of our senses to awake, and the last to cease motion. It is indicative of the higher and holier emotions, of all those feelings which distinguish man from the brutes" (Ibid., p. 94). Fig. 344.-Case LX. Chronic Dementia. Uncomfortable attitude main- tained for a long period. Automatic nerve-muscular activity. (From photograph taken by author.) parts about the eye as much as to any particular change in the organ itself. In a limited way, however, the eye itself entirely dis- sociated from surrounding parts, is subject to certain 525 Insanity. Insanity. DEFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) changes which modify its expression. In studying the eyes of the insane it is proposed to limit our observation to these very changes, the muscular movements of ad- jacent parts having already received discussion in pre- vious sections. Three conditions modify the expression of the eye : I. The state of the iris. II. The degree of brilliancy of the organ. III. The position of the eyeball in its socket and its mobility. I. The state of the iris may be either one of contrac- tion or dilatation. Neither of these, however, plays any prominent part in modifying the expression of the indi- vidual. II. The degree of brilliancy of the organ exerts a wider influence upon expression, and variations from ex- treme dulness to remarkable lustre are of frequent oc- currence in the different phases of insanity. This qual- ity of brilliancy is quite characteristic of the eye in states of health, and has been alluded to by Darwin, Mante- gazza, Schack, and others. Its physiological causation is of much interest and has been variouly explained by different authors. Darwin says : "A bright and spark- ing eye is as characteristic of a placid or amused state of mind, as is the retraction of the corners of the mouth and upper lip with the wrinkles thus produced. Even the eyes of microcephalous idiots, who are so degraded that they never learn to speak, brighten slightly when they are pleased. Under extreme laughter the eyes are too much suffused with tears to sparkle ; but the moisture squeezed out of the glands during moderate laughter or smiling may aid in giving them lustre ; though this must be of altogether subordinate importance, as they become dull from grief, though they are then often moist. Their brightness seems to be chiefly due to their tenseness, owing to the contraction of the orbicular muscles and to the pressure of the raised cheeks. But according to Dr. Piderit, who has discussed this point more fully than any other writer, the tenseness may be largely attributed to the eyeballs becoming filled with blood and other fluids, from the acceleration of the circulation consequent on excitement of pleasure. He remarks on the contrast in the appearance of the eyes of a hectic patient with a rapid circulation, and of a man suffering from cholera with almost all the fluids of his body drained from him. Any cause which lowers the circulation deadens the eye. I remember seeing a man utterly prostrated by prolonged and severe exertion during a very hot day, and a by- stander compared his eyes to those of a boiled codfish " (Darwin, " Expression of the Emotions in Man and Ani- mals," Am. Ed., p. 206). Schack, in describing the physiognomy of laughter, says : " The glance of the eye at the same time becomes shining and brilliant, a fact which is in part due to the increased secretion of the lachrymal gland, and probably also to the inner tension of the eyeball which is the re- sult of the increase of circulation under the influence of pleasure" (Schack, ibid., p. 126). Mantegazza says with great truth: " The eyes have a remarkable brilliancy which goes far toward modifying the expression. The eye of one who laughs, of one who thinks or speaks with energy, is very brilliant; the eye of a stupid, feeble, or sick man has little brilliancy ; while the eye of one who is moribund seems to be almost ex- tinguished. This brilliancy deserves an attentive exam- ination, for it is one of the most important and obscure elements that enter into the study of the eye. For the moment we ought to content ourselves with saying that this condition depends in part upon the structure of the cornea, upon its variable convexity under the influence of the ocular muscles, upon the humors secreted by the eye, and especially upon the veil of tears which bathes its entire outer surface" (Mantegazza, ibid., p. 36). And again the same author says : " Popular opinion attributes a lively eye to the man of genius, and a dull eye to the stupid man. In fact, in the former a continu- ous discharge of nerve-energy is being liberated from the central nervous system which finds an abundant outlet in the numerous muscles of the eye; hence the move- ments and oscillations of these muscles, hence also the veil of tears which renders the eye brilliant" (Mante- gazza, ibid., p. 245). These different physiological reasons for varying brill- iancy of the eye under corresponding emotional and in- tellectual states, find interesting illustration and confir- mation in the eyes of the insane. Among the insane, as in no other class, there exist in full force the very condi- tions noted by the physiognomists whose views have just been quoted. Prominent among the factors that enter into the causation of a brilliant eye, none are more im- portant than the varying tenseness of the ocular muscles, due, as Mantegazza says, to the continuous discharge of nerve-energy along the efferent routes to these particular muscles. Varying degrees of convexity of the eyeball, caused by the alternate contraction and relaxation of the ocular muscles, produce variations in the refraction of light from its smooth surfaces, a fact which may in large measure account for the changes in brilliancy, assisted as it must be by the squeezing out of a greater or less amount of fluid from the lachrymal glands. These different degrees of muscle tension, varying as they do from the ordinary tonicity of health to extreme contraction and relaxation, are, as has been seen, of com- mon occurrence in the different types and stages of mental disease. Variations in the brilliancy of the eye among the insane would seem, therefore, to find one very natural explanation in the different degrees of efferent nerve-muscular activity, so commonly witnessed in this disease, and which is distributed to the ocular in common with all other muscles, causing thereby varying degrees of tension and convexity of the eyeball, and correspond- ing variations in the refraction of light from its surface. Another cause assigned for increased brilliancy of the eye is that given by Piderit, and referred to by Darwin in the quotation given above, namely, an acceleration of the circulation consequent upon emotional excitement. Nearly all conditions of increased cerebral circulation are followed by a peculiar brilliancy of the eye. On the con- trary, a slow and depressed circulation is followed by a dull and lustreless eye. Even in conditions of depraved physical health, provided the circulation is more rapid, the eye assumes a brighter aspect. We see this in the later stages of phthisis, where, as a compensation for the loss of aerating surface within the lung, the heart is urged on to greater frequency and impels the blood more rapidly through the arteries ; and by reason of this heightened circulation, the eyes of such patients assume oftentimes an almost unnatural brilliancy. By reason of increased cerebral circulation it may also be quite likely that the eye of acute mania assumes its brilliancy, while in the slow circulation of melancholia and dementia just the reverse obtains. We may conclude, then, that changes in the brilliancy of the eye may be due to either one or both of the two causes mentioned : varying tension of the eyeball caused by the transmission of nerve-muscular force from the nervous centres to the ocular muscles, or the presence of a greater or less amount of fluid within the transparent media of the eye as a result of increased flow of blood in that region. Either or both of these causes may ac- count for variations in brilliancy noticeable in different forms of mental disease. Unfortunately, this important element in the expression of the insane does not admit of satisfactory illustration, the flash of light from the eye being of too fleeting and evanescent a character to be caught and retained by the sensitive plate in the camera. In a general way, every form of insanity which is attended by increased nervous activity, with or without more rapid heart-action, is characterized by brilliancy of the eye. The eye of de- mentia, of melancholia, of the depressed stage of folie cir- culaire, is dull and lacking in brilliancy ; the eye of acute mania, of the exhilarated stage of folie circulaire, and of those acutely maniacal conditions frequently witnessed in paresis, is brilliant and glistening. Striking illustrations of a change from brilliancy to dulness are often very noticeable in different stages of the disease in the same individual, although it is ex- 526 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Insanity. Insanity. tremely difficult to get a satisfactory portrait illustrating such change. III. The position of the eyeball in its orbit, and its mo- bility. The position of the eyeball in the orbit is a very prominent factor in facial expression. Six small muscles guide the eye in various directions. Four of these mus- cles, the recti, are under the influence of the will, and during our waking hours are in almost constant activity. They conjointly balance each other and maintain that slight convergence of the eyes which Darwin says is nec- essary in binocular vision. The two oblique muscles are involuntary in character and apparently serve a double purpose. They rotate the eyeball on its antero-poste- rior axis-"this kind of movement being required," as Gray says, "for the correct viewing of an object when the head is moved laterally, as from shoulder to shoul- der, in order that the picture may fall in all respects on the same part of the retina of each eye." The oblique muscles also serve the purpose of rolling the eyeball up- ward under the lid. The recti being voluntary muscles, their action ceases during sleep and in states of deep un- consciousness, and then the oblique muscles, meeting with no counteracting influences, roll the eyeball upward. Sir Charles Bell called attention to this interesting action of the oblique muscles, which is undoubtedly intended to protect the delicate surface of the cornea from being ex- posed, in case the lids remained partially opened during states of unconsciousness. Between the extreme condition of entire relaxation, oc- curring in states of sleep and unconsciousness, and the varying degrees of tension necessary to the direction of the eyes during the waking hours, the recti undergo a certain relaxation corresponding to the state of the faculty of attention. In health the faculty of attention is in nearly continu- ous activity. During the waking hours some person or some thing near or remote is, by this act of attention, be- ing made an object of vision. Except in moments of in- trospection or reverie the sensorium is, by the guidance of tlie attention, being brought in contact with the en- vironment through the sense of sight. For this reason the eyes are kept in a state of gentle convergence-such a position being necessary to binocular vision. The least withdrawal of the attention from any object in the immediate or remote environment is at once followed by a partial relaxation of the recti muscles, and as a result the eyes slightly depart from their condition of conver- gence and appear to be directed forward, or in nearly parallel or slightly divergent lines. This is the position of the eyes in states of reflection or absent-mindedness, which gives to the face a characteristic expression that receives a familiar and sometimes annoying illustration in every-day conversation. While conversing with a friend we are suddenly made aware, by a change in the position of his eyes, that be is not any longer looking at us, but apparently through or beyond us; and by this same parallelism of the eyes we are conscious that his at- tention has ceased to be interested in what we are saying and has become occupied with other things. As before remarked, impairment of this faculty of at- tention is one of the first results of insanity. Disordered inhibition associated with enfeeblement of the will-power leads to a positive weakening of the faculty. The mind of the insane patient is often entirely preoccupied. Mor- bid trains of thought, delusions of suspicion, fears, in- tense subjective ideation fill his mind, and, by reason of the inhibitory incapacity consequent upon the disease, these morbid psychic processes continue unchecked. As a result the recti muscles undergo relaxation, allowing the eyes to depart from that state of convergence which is the usual result of the normal exercise of the faculty of attention. Ocular parallelism or divergence, therefore, which fol- lows absent-mindedness in health and is then of mere tem- porary character, may become in many forms of insanity a prevailing condition, thereby forming a very striking feature in the facial expression of the disease. In such a condition of the eyes the person does not seem to take any interest in his environment. Oftentimes the eyes have a staring look, and in many forms of insanity all attempts at diversion are futile, the patient continuing to manifest that painfully stony and glaring aspect which show how intense is the mental absorption. Indeed, one of the first symptoms of insanity observed by the friends is this peculiar expression due to ocular parallelism. They often refer to a certain strange, unnatural, or wild appearance about the eyes which is undoubtedly brought about by the divergence due to almost constant morbid preoccupation of the attention. In the late John McCullough's masterly representation of the insanity of Virginius, or the feigned insanity of Brutus, one of the most striking features of his portrayal of the morbid mental condition was the apparent cen- tring of the eyes upon vacant space, rather than upon near objects. The idea was at once conveyed to the Fig. 345.-Case XLIX. Senile Dementia. Showing ocular divergence, neglect of personal appearance, general absence of healthy muscular tonicity. (From photograph taken by author.) spectator that the mind of the character represented was preoccupied with ideas entirely outside his environment. In the early stages of delusional insanity, in melancho- lia, in many conditions of mania, and in dementia, ocular parallelism is of frequent occurrence, either on account of the intense preoccupation of the mind with subjective ideas, or on account of absence of ideation, or, lastly, because ideas are so hurriedly brought up before the mind that the individual is unable to direct his atten- tion upon anything or anybody about him, and conver- gence, if it does occur, is merely momentary. In conclu- sion, it may be said that ocular parallelism or convergence among the insane represents, if persistent, the extent to which the faculty of attention is weakened by the disease. Thus the demented, in whom the power of attention has been almost entirely destroyed, nearly alw'ays presents a 527 Insanity. Insanity. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) vacant, staring appearance of the eyes, and in extreme cases it becomes absolutely impossible to induce that con- vergence of the eyes characteristic of the healthy binoc- ular vision. The same is true of cases afflicted with melancholia attonita. From the extreme and persistent ocular parallelism noticeable in terminal and organic de- mentia and melancholia attonita there may occur all tention can be aroused momentarily. In Fig. 348, C and Fig. 349, D the change has become complete and the pa- tient takes an intelligent interest in his environment. This case recovered and retained perfect recollection of the fearful mental torture through which he passed. He was able to give an intelligent account of his ideas, and the reason for his vacant, preoccupied, divergent stare lay in the entire suspension of the faculty of attention to anything but his own morbid ideas, and a complete lack of interest in anything in his environment. Case XLII. (see page 519) shows ocular divergence in a state of acute mania. Here the cerebral activity is so persistent that ideas are hurried through the mind more rapidly than they can be grasped by the attention. The condition is exactly the reverse of what occurs in demen- tia. In dementia there is absence of ideas, while in mania there is such an excess of ideas that the attention is bewildered and paralyzed. So great is the mental confusion that the patient is incapacitated from taking any interest in his environment. The eyes of such pa- tients are rarely centred upon anything, and complete in- coherence of thought is manifested by the position of the eyes almost as much as by disordered speech and action. Cases of mild mania and delusional insanity very fre- quently present this condition of ocular divergence. Either the mind is confused with a number of irrelevant ideas and the attention is thus diverted, or some one per- sistent idea or series of ideas so completely absorbs the patient's attention that that faculty seems to be incapa- ble of being aroused by anything in the immediate en- vironment. The mobility of the eye in the orbit is quite a promi- nent factor in facial expression, and is subject to great variation in the different phases of insanity. The ner- vous supply to the muscles of the eye is abundant and is Fig. 346. Case XXXIII. Acute Suicidal Melancholia. A. Taken at height of attack. Trophic alterations, ocular divergence, and self-ab- sorption well marked. (From photograph taken by author.) varieties of the condition to those cases in which the fac- ulty of attention is so slightly disturbed by the mental disease that' the position of the eyes does not vary from that which is characteristic of health. Case XLIX. illustrates the fact that deficient ideation, accompanied with actual impairment of the faculty of attention, is attended with parallelism of the eyes or slight divergence. If one should stand directly in front of this individual he would find it almost impossible to place himself directly in the line of his vision. This pa- tient's position is very characteristic. He appears to be staring into vacancy, not because his mind is preoccupied with any particular line of thought, but rather on ac- count of absence of active thought of any kind. Cases XXXI. (see page 510) and XXXIII. (see page 528) present ocular divergence in states of active melan- cholia. In these individuals the eyes depart from the normal convergence of health because the mind is so intensely preoccupied with some one dominant idea or class of ideas as to be actually incapable of being aroused or attracted. It is impossible to interest these unhappy minds in any subject. Either1 some one idea of painful character has excluded every other thought, or the corti- cal centres themselves have been so overwhelmed by the force and intensity of the morbid ideation as to be incapable of farther functional activity. These same cases are particularly interesting because in each of them we have excellent views both at the time of greatest mor- bid intensity and during perfect health. In XXXIII. the series show the gradual but steady progress of the mind toward recovery. In Fig. 346, A the eyes are fixed in a state of divergence. No amount of urging can prevail upon the person to awaken from bis intense painful preoccupation of mind. In Fig. 347, B there is evidently the beginning of an awakening-the at- Fig. 347.-Case XXXIII. B. Taken three monthslater. Self-absorption less marked. Delusions beginning to weaken. Health improving. (From photograph taken by author.) distributed through three main tracts : the motor oculi, the fourth nerve, and the sixth, or abducens. The dis- charge of nervous energy which is constantly taking place along the various efferent tracts during periods of cerebral activity, undoubtedly follows these three nerve- tracts to the muscles of the eye. Such an elimination of nerve-force is, as we have already noticed, one cause of the brilliant and glistening eye of mental activity. In 528 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Insanity. Insanity. the active cerebral excitement consequent on attacks of mania a similar discharge of nervous energy passes along these same routes to the various eye-muscles. Not only are the eyes of the actively insane quite brilliant, they For this reason any collection of photographs of the insane presents a bizarre appearance. In acute mania, for in- stance, irregular and spasmodic action of the cortical centres produces meaningless expressions and asymmet- rical contractions of the facial muscles, noticeable in Case XLII. Fig. 337, A (see page 519). Here it may be supposed that the centres in the motor area act indepen- dently of each other, or that there is imperfect co-ordin- ation. One group of muscles are contracted, while the corresponding group upon the other side are relaxed. The usual bilateral contractions that occur in the normal facial expression of the emotions are absent in these cases (see Fig. 350). Among the demented insane organic degeneration of cortical areas produces a very similar result. This is il- lustrated in the strange attitudes and persistent meaning- less position of groups of muscles. In dementia it may be supposed that one group of cortical cells may have been destroyed by degenerative processes, and that co- ordinate action between cortical areas ordinarily associ- ated has thus become physically impossible. Again, in acute alcoholism the same kind of irregular and one- sided action of muscles occurs. And in this case there is good reason for sup- posing that the toxic influence of the drug has im- paired the normal activity of the cell to such a degree that there is a with- drawal of the sup- ply of nerve-force necessary to healthy muscular action. The alcohol in the cerebral cir- culation affects one group of cells more than another, or so impairs normal co- ordination that muscular move- ments are jerky and uncertain. Both the face and the gait of the intoxi- cated man disclose the asymmetrical and irregular action of the centres of the motor area. In the paretic, the organic changes that have occurred in the cor- tical cells are clear- ly revealed in the imperfect co-ordination of different groups of muscles, particularly those of the mouth, tongue, and throat. In studying the physical expression of insanity, one thing is worthy of note. Departure from normal expres- ^ionkeeps pace with functional and organic disturbance in the cortex. The distortion and agitation of mania, the dissolution of expression witnessed in organic dementia, or in melancholia with stupor, correspond to extreme functional or structural disturbance in the cortical cen- tres. As inhibition, the power of attention, and intellec- tual activity depend upon the integrity of the cells in the cortical area, we may conclude that the changes in the physical expression of the insane are associated with certain" inhibitory and intellectual disturbances, accom- panied in the later stages with motor enfeeblement. These psychological concomitants of the physical expres- sion of insanity represent the pathological changes that have occurred in the cortex. Hence it happens that the expression differs in different cases of mental disease according to the degree of functional or structural im- pairment of the cortical area. Slight departure from normal expression is evident in Cases XII. (see page 515) Fig. 348.-Case XXXIII. C. taken two months after B. Convalescence established. Healthy ideation and restoration of physical health. (From photograph taken by author.-) also possess great mobility ; and rapid movements of the eye, giving to that organ a character of restlessness, are important factors in the facial expression of nearly every case of active insanity. This pathological transmission of nerve-force from the Fig. 350.-Onesided Contraction of the Facial Muscles of Expression. (From Kirchoff's Handbook.) Fig. 349.-Case XXXIII. D. Recovery. Taken at time ot discharge. (From photograph taken by author.) cerebral centres to the muscular periphery, which has been referred to in the previous pages as excessive, defi- cient, or automatic in character, leads to a certain asymme- try of the muscles, particularly noticeable in the face. 529 Insanity. Intestinal Diseases. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. and LIV. (see page 521), notwithstanding that the patients are affected with marked delusional insanity ; on the other hand, in Cases XLII. A (see page 519), LXV. (see page 524), XXXIX. (see page 518), and in the woman shown in Fig. 351, there is great disturbance, and even distortion of expression in some instances. The ex- planation of the difference in the character of the ex- pression in the two classes of cases may be found in the varying character of the functional d i s - turbance in the cerebrum. I n Cases XLII. A, LXV., etc., nor- mal intellectual activity is inter- fered with, inhi- bition is dimin- ished, and the power of atten- tion so tempo- rarily or perma- nently damaged as to be nearly useless; while in Cases XII. and LIV. the inhib- itory and intel- lectual processes are quite well preserved, not- withstanding the fact that there is marked delusional in- sanity. Case XII. could sit for his photograph with as much ease and confidence as any sane person, ow- ing to the preservation of inhibitory power and the ability to concentrate his attention upon his immediate environment. Case XLII., on the other hand, owing to his motor restlessness and his intellectual incoher- ence, was entirely unable to sit intelligently for his por- trait, and a likeness was only secured by the aid of in- stantaneous pho- tography. The greatest diver- sity of physical expression is encountered, therefore, among the in- sane. Many very natural and intelligent coun- tenances are no- ticeable in the extremely d e - hided, simply because the functional corti- cal activities un- derlying inhibi- tion, attention, and ordinary intellection have not been im- paired. In conclusion, it may be said that the study of the physical expression of the insane by the aid of instantaneous photography is a matter of much interest to the psychol- ogist, indeed may become a valuable aid to diagnosis and prognosis. A series of photographs illustrating an individual in different stages of mental alienation gives a good illustration of changes that have taken place in the central nervous system. Every hospital for the in- (SUPPLEMENT.) sane should possess a photographic outfit and preserve pictures illustrating the individual in various stages of his disease. The slow but steady disintegration of ex- pression preserved in the photograph will become an accurate index of the organic failure that has occurred in the brain. On the other hand, the return of normal muscular tonicity, of natural expression as evidenced in the trophic condition and normal motor activities of the muscles of the face and extremities, is an equally sure in- dex of the reparative processes that have occurred in the central nervous system. It may not be too visionary to suppose that a careful study of photographs, taken at dif- ferent periods in the life of an individual whose case has come before the courts, may prove to be of medico-legal importance, and give the medical expert valuable assist- ance in comparing the past with the present mental and moral status of the case. Charles P. Bancroft. INTESTINAL DISEASES: DYSENTERY. In the light of recent investigation the word "Dysentery'' has but little right to occupy a place at the head of this article. Originally used to express a certain set of symptoms, which differed entirely from those included under the term " Diarrhoea," it now covers pathological states which differ very much in nature and extent, and does not de- fine varieties which are unlike anatomically and etiologi- cally. The so-called dysenteric lesions may have diar- rhoea as a symptom, and simple catarrhal changes in the mucous membrane may be attended by tormina, tenes- mus, and dysenteric stools. The symptoms vary to such an extent that they can- not be made a basis for study; pathological changes and etiology will alone help us to define the nature of the different forms, and a new nomenclature must be based upon new methods of investigation. Nevertheless the w'ord dysentery is still used to indi- cate certain pathological changes which occur in the in- testine from various causes ; it even includes a condition proven to be due to a specific cause with characteristic anatomical changes, as well as other special ulcerative changes which may be dependent upon bacilli not yet isolated. In the present state of our knowledge the conditions formerly included under our term "Dysentery" can be differentiated into-a, simple catarrhal dysentery ; b, diphtheritic dysentery ; c, amoebic dysentery. Catarrhal Dysentery.-In the milder cases of this form there may be no change beyond a more or less in- tense hyperaemia of the mucous membrane occupying areas of varying extent. Punctiform hemorrhages may be seen in the mucosa or submucosa. The mucous coat may be swollen and covered with much mucus and pus cells. The surface epithelium may be absent, and the exfoliation of epithelium may involve the glands. There may be destruction of the tissue of the mucous membrane ; shallow ulcers are seen, and are formed by extension of the superficial softening. Sometimes the ulcers extend to the muscular coat. In the submucosa, which is much thickened, there are masses of granula- tion and pus cells, and the connective - tissue cells are enormously swollen. The solitary follicles are swollen from hyperplasia of lymphatic tissue ; from distention they burst and an ulcer is formed. This form may un- dergo cure by an arrest of the disease and healing of the spots of ulceration, or the ulcers remain and show no tendency to heal. This form is frequently a complication of other and generally chronic diseases. It constitutes the most fre- quent form outside of the tropics, and is the one which we most frequently see as sporadic dysentery. The symptoms usually begin suddenly, sometimes with diarrhoeal discharges, or with "dysenteric" stools from the start. These consist of blood and mucus ; later, pus may be seen and the discharges may become more fluid and abundant. Tormina, rectal tenesmus, vesical tenesmus, prolapsus ani, with continued fever, constitute the chief symptoms. Improvement begins with a diminution in the number of the stools, the dis- appearance of blood and mucus, and the reappearance of Fig. 351.-Delusional Melancholia, with Ideas of Fear. (From Kirchoff's Handbook.) Fig. 352.-Delusional Melancholia, with Ideas of Fear. (From Kirchoff's Handbook.) 530 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Insanity. Intestinal Diseases. fecal matter. The fever subsides and there is a return of appetite and strength. Relapses may occur. The duration is from one to two weeks in mild cases, but the attack may be prolonged to four weeks. Diphtheritic Dysentery. - Diphtheritic dysentery is so called because of the presence of a membrane on the surface of the mucous membrane of the large in- testine, and sometimes of the small intestine as well. This is composed partly of a fibrinous exudation, but is •chiefly necrotic tissue. The process is as follows : On the surface of the hy- persemic mucous membrane small, whitish-gray patches appear, which cannot be removed without causing a loss of substance. By coalescence large membranous areas are formed, which may completely line portions of the tubes, or the patches may continue distinct, small mem- branous patches being scattered over the surface. These •changes are most marked at the bends of the intestine. The intervening mucous membrane may be intensely hypersemic in the most acute cases ; in others it is un- changed. Microscopic examination shows the membrane to be composed of necrotic cells, nuclear detritus, and masses of fibrine, which involve the mucosa to varying depths. Between it and the healthy tissue there is a line of de- marcation formed of pus cells. In the submucous tissue there is intense injection. The vessels are dilated and surrounded by a zone of small-cell infiltration. Fibrine is sometimes exuded in the submucous tissue, having no •connection with the surface membrane. The pseudo- membrane is subsequently separated from the tissue be- low by suppuration, and is thrown off, leaving an ulcer- ated surface. The ulcers vary in size with the extent and depth of the necrosed tissue ; they may heal, or ex- udation and necrosis may go on, destroying deeper and larger areas and causing large and irregular ulcers. By healing, large and irregular cicatrices may form, and the wall of the intestine may be thickened and its lumen narrowed. Inflammation may extend to the peritoneum or perforation may result. This form of dysentery is the one usually found in epi- demics. The symptoms are more pronounced, and con- stitutional disturbance is more marked than in the preceding form. Fever of varying intensity is observed, with great prostration, abdominal pain, and frequent discharges. The stools at first may present the same characters as those in the catarrhal form, but later they become more watery, with membranous fragments, and at times large necrotic masses of putrid odor are passed, with or without tenesmus, depending upon the location of the ulceration. The bacteriological research in both catarrhal and diphtheritic dysentery is full of interest, though nothing positive can be stated as to any specific bacillus. In 1869 Hallier observed a number of micrococci in dysen- teric discharges, which he claimed to have differentiated from the discharges of diarrhoea and healthy faeces. There are two species of bacteria present in the healthy intestine, viz., bacteriumlactis aerogeneus, which is usually found in the upper, and bacterium coli commune, found normally in the lower intestine. Councilman suggests that the part the bacterium coli commune plays in dysen- tery may be an important one. It is pathogenic in a number of the lower animals, and if the normal resist- ance of the tissues of the intestine is lessened from any of many causes, it may act in man as a pathogenic germ. It is found not only in the ulcerations, but it is also found to have penetrated the tissues. Booker, in a series of careful examinations upon a child which had died of dysentery, claims to have iso- lated a germ not found in the normal intestine or in diarrhoeal discharges. It resembles in morphology the bacterium lactis aerogeneus, but is smaller, and differs from it by producing fermentation in milk. The new bacterium was found in large quantities in the diseased part of the intestine, and was absent in the healthy part. In 1876 Normand, having made a microscopic exami- nation of the stools of soldiers returned from China with severe dysentery, discovered a parasite which he named "bacillus stercoralis." It is a fusiform germ of the ne- matode family, and very similar in appearance and size to the filaria of the human blood. This germ measured about one millimetre in length, and was thirty to forty micro millimetres broad, a little pointed in front and tapering to a point in the back. Normand, having first proven the constant presence of the germ in nearly all the cases of severe dysentery, did not hesitate to call it the specific agent of the disease ; but this idea was soon abandoned. Amiebic Dysentery.-The intestine is always con- siderably thickened, the submucous coat being consider- ably affected, though the other coats are involved to varying extents. This thickening is due not only to the oedematous condition, but there are sharply circum- scribed projecting nodules, in which are small cavities filled with a viscid gelatinous pus. The mucous mem- brane covering these cavities becomes necrosed and sloughs off, leaving irregular ulcers, which may connect with others by a sinuous tract, burrowed under appar- ently healthy mucous membrane. The submucous coat is generally infiltrated and oedem- atous ; it softens, and by necrosis of overhanging tissue ulcers, with undermined and ragged edges, are formed, which have the muscular coat for their base. The cel- lular infiltration extends through the upper layers of necrosed muscular tissue into the septa of the intermus- cular connective tissue and into the submucous coat. Destructive necrosis goes on in the tissues of the circu- lar muscular coat, and masses of it slough off and are passed by stool. The next step is great thickening of the adjacent peritoneum, which next becomes the seat of dis- integration ; adhesions form with neighboring viscera and with contiguous links of intestine. The mucous membrane at a distance from the seat of the acute process is not altered ; lower down, some of the glands are dilated and filled with mucus and pus cells, the epithelial cells are distended with mucus, and the epithelium everywhere contains an increased amount of mucus. By confluence of neighboring glands cysts are formed. Near the ulcers the glandular epithelium pro- liferates with bud-like projections into the tissue below. Lambl first saw amoebae in the intestinal contents in 1849. In 1875 Losch, in examining microscopically the stools of a patient, twenty-four years of age, who was suffering wdth an ulcerative affection of the large intes- tine, discovered amoebae in great numbers, which he called " amibe du colon," or amoeba coli. Next, he in- jected these stools into the intestines of four dogs, one of which had vomiting and diarrhoea. The animals were then killed, the intestines were found to be inflamed, were covered with bloody mucus, and showed many ulcerations. The amoebae were found in the mucous membrane and in the ulcers. The parasite appeared as a protoplasmic mass and measured on an average twenty to fifty fi ; in motion and with their greatest elongation they reached over sixty f>. Their protoplasm is very granular and encloses six or eight round vacuoles. Koch, in 1883, found the amoeba in the intestines of those dying from dysentery. Kartulis attempted to prove that the amoebae played the principal role in the patho- genesis of dysentery. He also found them in other ulcer- ative affections of the intestine, viz., typhoid fever and tuberculosis. In certain complications of dysentery, and especially in abscess of the liver, Kartulis found the amoebae in the pus, associated nearly always with the ordinary microbes of suppuration. He did not believe that the parasite was pyogenic in itself, but that it only prepared the way for the microbes of suppuration. Osler, first in America, reported a case of abscess of the liver in the course of dysentery, in which he found the amoebae in large numbers. Much that we know of this form of dysentery is due to the work done in Johns Hop- kins Hospital by Osler, Councilman, and Lafleur, and we are indebted chiefly to the paper of Councilman (" Trans- actions of the American Association of Physicians, 1892 ") for our knowledge of the pathological anatomy of amoebic dysentery. Dock afterward demonstrated the amoebae in a case of dysentery contracted in Texas. Vassi 531 Intestinal Diseases. Intestinal Suture. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) has since found them in a case of abscess of liver; he found only a small number in the pus, but they were present in great numbers on the side of the abscess, also in some of the small branches of the portal vein. The constancy of the presence of the amoeba in the various manifestations of dysentery adds weight to their probable pathogenic influence. Massiutin has found these same parasites, with characters absolutely identical with those described by Kartulis, in other affections than dysentery (chronic intestinal catarrh, mucous diarrhoea, and acute enteritis), and on the strength of his researches he repudiates the idea held by Kartulis as to the speci- ficity of the amoeba as the parasite of that disease. In the meanwhile Kartulis is still experimenting, and his researches rather confirm his idea, though the results are not sufficiently proven to be assured. He has been able to produce a mucous and bloody diarrhoea by injecting the amceba cultures into the rectum of a cat. The amoebae are found in the submucous tissue around the ulcers; apparently they themselves produce few lesions in the mucous membrane, but they first attack the submucosa and the mucous membrane is affected from below. They are also found in the lymphatics and sometimes in the blood-vessels. The tissues in which they are seen are infiltrated with cells. There is no necrosis, and the neighboring connective-tissue cells sometimes lose their nuclei and the nuclei split. Most numerous in the smallest ulcers, when the process is most rapid and where there is no suppuration, they are scattered through the tissue or lead the advance of cell infiltration. Abscess of the liver was found in six out of eight autop- sies of amoebic dysentery (Councilman) ; in four cases, there was more than one abscess, and in two cases they were very numerous and small; in every case the right lobe was the seat of this change, and in two cases there were abscesses in the left lobe. In the smaller abscesses there was a small amount of glairy, semi-transparent fluid ; in the larger ones the contents were more fluid, of a grayish color, sometimes brownish-red, from admixt- ure with blood. A distinct limiting wall, sometimes dense and hard, is found in the larger abscesses, but it has not been seen in the smaller ones. The fluid of the smaller abscesses is composed of fatty, granular material, fragments of liver-cells, and pus or lymphoid cells ; that of the larger abscesses contained fat, red blood-corpuscles, fragments of liver cells, and very few pus cells. Amoebae were contained in both, but were more numerous in small and recent abscesses. Other changes in the liver consist in extensive necrosis in the centre of the lobules, the capillaries and necrotic cells containing numerous leucocytes ; but amoebae are not associated with the necrotic process ; they are only found in association with the abscesses. Abscesses are found also in the lungs ; they occurred in three out of eight cases, and were seated in the lower lobe of the right lung in every case. In two cases the lung abscess communicated with a liver abscess through a perforated diaphragm. The abscess cavity in the lung was surrounded by consolidated tissue of great extent, embracing the entire lobe. The consolidation is due to interstitial pneumonia. The contents of the abscesswere granular detritus, round lymphoid cells, red blood-cor- puscles, pus cells, and amoeb;e. A definite wall some- times included the abscess. The amceba? are more nu- merous in alveoli immediately adjoining the abscess, and in those places where the abscess is most rapidly advanc- ing, and where there is no limiting wall of connective tissue ; but all the neighboring tissues contain them. These appearances are different from those found in any other disease, and show an individuality of lesion, as- sociated with the presence of the amceba, which estab- lishes amoebic dysentery as a distinct disease. The amoeba is not an accompaniment but a cause of the de- structive changes in the liver and the lungs ; there is a relation between the number of the amoebae and the ac- tivity of the process, and where the process is more re- cent the amoebae are more numerous. The attacks begin suddenly or gradually. In the for- mer case a watery diarrhoea is followed by frequent stools of blood and mucus ; there are tormina and tenesmus. In some cases blood and mucus may appear in the begin- ning. In cases of slowT development, diarrhoeal symp- toms are present throughout, with intercurrent periods of constipation. In both forms there is no fever unless diphtheritic changes occur, or unless abscesses develop in the liver or lung. In more severe cases, with gangrenous destruction of the mucous membrane, the patient is pros- trated, and the stools are putrid and contain fragments of necrosed tissue. The symptoms are not uniform or characteristic, as in the catarrhal and diphtheritic forms ; intermissions and exacerbations occur. Convalescence is slow. The dura- tion is from two weeks to several weeks, but it may hist months or years ; it becomes a chronic disease. Amoebae are seen in the stools, floating in the fluid or clinging to fecal masses. They are more numerous in acute cases and in the periods of exacerbation. They disappear during convalescence, but may be seen in nor- mal stools after the patient is well. Treatment.-Popular favor in India still holds to the ipecacuanha treatment of dysentery. McDowell, after thirty-five years' service with the British Army, says that the horrors of dysentery are disappearing since this treat- ment has been employed. He gives a preparatory dose of twenty drops of laudanum an hour beforehand, and places a mustard-plaster over the stomach ; twenty to twenty-tive grains of ipecacuanha are given at bedtime. This treatment is to be given every evening, and no fluid is to be taken after it ; by the third day blood and mucus have usually disappeared from the stools, and they are free from pain. Maclean says this mode of treatment has reduced the former mortality to from twenty-five per cent, to seventy-five per cent., and that it is the most simple, the most successful, the most conservative, and the least objectionable mode of treatment of dysentery. Year by year under this treatment the chronic cases are becoming more rare and hepatic abscesses less frequent. Other observers, while not losing faith in the efficacy of this mode of treatment, urge its use in smaller doses. Its use in this country has been disappointing, and it has never come into especial favor, though many advocate its use in small doses (| grain to 3 grains) every half-hour to an hour. The experience of those who have had most to do with epidemic dysentery in this country, has led to a division of favor between the specific treatment by ipecacuanha alone and purgation by salines. A supposed portal con- gestion furnishes the theory for the purgative plan of treatment, although its good effects are confirmed by ex- perience. The fact that the supporters of purgation ad- vise the constant use of opiates afterward, and those who recommend ipecacuanha do not find it necessary to have recourse to them, gives ground for belief that the latter is the more successful method. The removal of scybalae in the early part of the attack, and toward the end of the more acute symptoms, is of unquestionable advantage in influencing favorably the condition of the inflamed mucous membrane. Daily purgation is not found so beneficial as was at one time believed, and when to give a purgative becomes one of the most perplexing questions, requiring much judgment and experience in its decision. The salines and castor-oil are the best. In those cases where the discharges are fluid, containing shreds of tissue and small clots, point- ing to extensive colitis, purgatives are unsuitable ; their use is confined to cases of catarrhal dysentery with small bloody and mucous stools. In amoebic and diphtheritic dysentery they are of less use. Opium, so largely used in this country in the treatment of dysentery, has its place among proper medicaments, but its use is only to ease pain and quiet the patient ; when used for any other purpose, or in large doses, its use is to be deplored. Bichloride of mercury and salol have been favorably mentioned on account of their antiseptic properties. Ringer recommends the former in doses of Tj(T to of a grain hourly. Salol is supposed to pass unaltered through 532 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES, Intestinal Diseases. Intestinal Suture. (SUPPLEMENT.) the rectum ; the smaller one admits the fluid, which es- capes through the larger one. The irrigating liquid is injected rapidly and escapes at once; in this way the rectum can be emptied and cleansed in a few moments. There is an important point in connection with this method which shows its advantages. In the worst forms of dysentery, where the colon is chiefly involved, the rectum is more or less constantly filled with a decom- posing fluid filled with shreds ; with each effort at stool the rectum is only partly emptied ; the sphincter con- tracts and closes, retaining a certain amount of the con- tents. Irrigation secures a complete emptying of the rectum, washes it out thoroughly, and makes it antisep- tic as far as can be done. Frequent repetitions of the procedure will sometimes arrest, at once, the frequent stools, and the patient may be made to have his evacua- tions only at the time of irrigation, the intervals being lengthened as he improves. In this way great suffering is relieved and the danger of general infection is avoided. The experience of the writer has convinced him of the great value of this method, as applied especially in cases with abundant fluid putrescent discharges. Rectal irrigation may be used in this manner, at first, at intervals of two to three hours ; as tenesmus diminishes and the desire for stool lessens, the intervals are in- creased to four or six hours ; they are then gradually stopped, a relapse often following a too early interruption of the treatment. Even after all the dysenteric features of the dejecta have disappeared it is well to continue ir- rigation for several days. If the tenesmus is great and the stools very frequent, an opiate suppository introduced into the rectum imme- diately after irrigation gives added comfort. But for in- tense tenesmus, combined with wakefulness, nothing an- swers so w'ell as the subcutaneous injection of morphia. In this article the attempt has been made to present the more recent views of dysenteric processes, and not to give a full exposition of the subject. Reference to the article on Dysentery in a former volume of the Handbook will show that many parts of the subject have not been touched upon here, because very little has been added to our knowledge except in the differentiation of amoebic dysentery from forms already known and fully described, and in the improved treatment by irrigation. William W. Johnston. INTESTINAL SUTURE AND ANASTOMOSIS. The advance in the treatment of wounds of the intestine, whether they be made by accident or by the surgeon in resecting or incising the bowel, is coincident with great surgical activity in the field of abdominal work. The possibilities of safe and perfect work have increased. The details of methods devised by many operators have multiplied until the practical surgeon is bewildered in choosing a method suitable to each emergency he en- counters. The technique of some of the methods pro- posed is elaborate, of others comparatively simple. It may be said that in the hands of each author the method advocated by him has resulted in a measure of success, seeming to warrant him in launching it upon the ocean of surgical endeavor, strewn already with more wrecks than sailing craft. It is to be assumed that, unless a method meets with a goodly share of success in the hands of general surgeons everywhere, the appeal of any one ad- vocate will not entitle it to a permanent position in the armamentarium of the well-equipped surgeon. Many methods are highly ingenious and appeal to the fancy of the student rather than to the utilitarian mind of the operator. It is difficult, with the improved statistics of abdominal surgery, to know howr much value to place on the help obtained in saving life by the novel methods of intestinal repair, and how much on the general knowledge of the treatment of all abdominal wounds per se. Statistics of the past cannot be compared with those of recent years, because of the marked causes of former mortality from peritonitis due to infection of erysipelas, sponge and hand contamination, and sepsis, now happily so largely eliminated from our hospital operating-rooms. the stomach, and in the intestine to be broken up into salicylic acid and phenol ; it is given in ten-grain doses every two hours. Calomel, so long in favor in this affection, has of late fallen into practical disuse, though some few still hold that it is worthy of a place among the specifics and pur- gatives. Treatment by Suppositories and by llectal and Colon In- jection and Irrigation.-The use of suppositories contain- ing opiates and astringents, although at one time a com- mon practice, is much less in favor than formerly. It is not desirable to destroy, or to limit to too great an ex- tent, the tendency of the rectum to expel its contents. The retention of a decomposing fluid in the colon and rectum cannot but be a source of danger, and fatal gen- eral infection may follow. The disease cannot be cured by putting a stop to dysenteric discharges, and therefore suppositories used for this purpose are not to be recom- mended. After the action of a purgative an opiate sup- pository may arrest too free purgation and keep the bowel at rest with benefit, and after irrigation, also, advantages may follow upon the same principle, but the doses of opium should never be large. In attempting to control tenesmus the temptation is frequently to give too large doses, which induce narcotism and which involve great danger. These same rules hold against following the once pop- ular method of using injections of starch-water and laud- anum, which may be of service with the limitations just mentioned, but as a routine treatment the plan is not without danger. The injection into the bowels of large quantities of warm or cold water has many advocates. The sedative effect of water of a high or low temperature upon an inflamed mucous membrane is of undoubted service in dysentery. The only objection is to be found in the dan- ger of over-distending the inflamed gut, and of adding to its irritability. Irrigation, by cleansing the ulcerated surfaces, by washing away the decomposing contents of the bowel, and by destroying bacterial life, gives promise of accomplishing a great deal more than by the mere in- jection of fluids into the bowel. Cool or hot water may be used for irrigation, but if an antiseptic agent be added to the water there is an ad- ditional benefit. Antiseptic irrigation may be practised with solutions of mercuric chloride 1 to 5,000, quinine 1 to 5,000 or 1 to 2,000, salicylic acid, thymol, carbolic acid, sulpho-carbo- late of zinc, boracic acid, etc. The use of bichloride solution must always be attended with a certain amount of danger ; precautions should always be taken so as to have a free exit. Irrigation can be practised in the rectum or colon ; in either case a soft rubber tube is passed into the rectum or is gently and gradually forced upward through the sig- moid flexure. This is by no means an easy task, as the instrument so readily turns on itself; an occasional ex- amination ought to be made with the finger to see if this has happened. Experiments in the cadaver show that the smaller-sized rectal and colon tubes do not make their way as readily as those of larger size. The habit of in- jecting water, as the tube progresses, favors tw'isting; progression is more easily made if the bowel is empty, as the mucous-covered wall guides the instrument in the proper direction. In many cases the colon cannot be reached, and there is danger of perforating the ulcerated bowel if too continued efforts are made. One must be content, therefore, to pass the tube as far into the sig- moid as possible. The fluid is then allowed to flow in from a fountain syringe, or is thrown in by a Davidson ; when six to eight ounces have entered, it is allowed to es- cape through the same tube. This process is repeated until a quart or more has been used, or until the water escapes perfectly clear. If the patient is in the dorsal position or on the left side, with the hips raised, gravity favors the entrance of the fluid. In most cases, and es- pecially in bad cases, with putrescent fluid discharges, it is safer never to attempt to push the instrument beyond the rectum. Two tubes of different sizes are passed into 533 Intestinal Suture. Intestinal Suture. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) The mechanical part of intestinal suturing will, there- fore, concern us rather than the results as judged by the scant statistical records. The really important part of this work is a matter of contemporary surgery. Prior to the past twenty years, recovery from injury of the bowel bordered on the marvellous, even to the mind of the older surgeons. True, an occasional re- covery is recorded of successful treatment as far back as 1521, when an unknown surgeon sewed up a stab wound of the stomach and the patient recovered. Now, we know that with strictly clean work a surgeon can, for all practical purposes, insure perfect healing of sutured wounds of the alimentary tract. His duty is first to know the simplest technique of the few useful methods of stitching, and then the application of them to more complicated methods. His first concern is with the material used-the needle and thread. I believe nothing more perfect than the or- dinary cambric needle can be used. Yet a small Haga- dorn or a glover's needle may be employed in the absence of the other. The cutting edges of the latter wound the many veins of the bowel, and are pretty sure to make troublesome interstitial hemorrhages which dissect the coats for some distance from the puncture points. The round cambric needle, on the other hand, enters the ten- der intestinal coats readily and stops at the resisting sub- mucosa, which, as Halsted has shown, has a definite fibrous quality which can be detected and picked up on the point of this needle, thus giving a more secure pur- chase for the thread. The needle should be long enough to be readily handled-one and three-quarters or two inches is the best length. The thread should be of fine silk; No. 00 embroidery silk, iron-dyed, is best. In emergency, however, one may use common linen thread perfectly well, though it is not so smooth nor so readily drawn through the tis- sues as is silk. It has the advantage of being obtained of proper strength and size in an emergency, in any household, as is the needle also. Catgut is not to be used in intestinal sutur- ing. It is not enduring enough, its knots slip, and its sterilization is not to be trusted as per- fectly as is that of silk or linen. The needle should be sterilized by passing it through the flame of a lamp three times. The thread is perfectly steril- ized by boiling, after winding it on a small glass rod. Boiling for a half-hour and immers- ing in alcohol until needed, is the best method for preparation. It may, however, be sterilized by dry heat for three hours (oven- baking temperature, 300° F.) and kept in cotto n-stoppered test- tubes without fluid, thus making it light and portable. Safe and accurate apposition of the edges of the in- testinal wound depends on the variety of stitch employed, and it is well to fix in one's mind two or three varieties of suture that have stood the test of experience, and dis- card all others as unnecessary. The principle underlying the inducing of sound adhe- sion of the wound is that fixation of two peritoneal sur- faces in contact, by means of some slight traumatism or the presence of a foreign body, such as the suture, im- mediately causes the copious exudation of plastic lymph, which seals the layers in from two to six hours, so that leakage is impossible without violence. To further add to the solid- ity of the lymph, it has been shown by Senn that gentle abrasion of the surfaces before sewing causes additional firm- ness to result. The suture must take hold only on the peri- toneum, the muscular coat, and an attenuated but firm and readily recognizable submucous fibrous reticulum, with- out penetrating the mu- cous coat. The action of the cir- cular and longitudinal muscular fibres causes a double movement of the part involved by the stitches, so that absolute fixation is a matter of skill in the use of the stitches. The stitches to be considered are the Lembert or "interrupt- ed," the "continuous," and the quilt stitch. The "Czerny-Lem- bert " is characterized by the use of a separate suture of the mucous coat within the bowel, combined with the Lem- bert externally. The continuous sut- ure, as modified by Cushing, of Boston (Fig. 354), gives a method by which excellent apposition is obtained and the thread more thoroughly buried in the intestinal coats than in the sim- ple running suture of Dupuytren (Fig. 353). When we consider the fact, however, that all these sutures turn in, and keep in contact two lips of intestinal edge which act as a valve when pressed from within, allowing nothing to escape so long as the suture holds, it seems that one has no advantage over the other from a mechanical point of view. It is argued that the lengthening and shortening of the wound by reason of the double peristaltic muscu- lar action might allow such relaxation of the continuous suture as would cause a gap for leakage between succes- sive stitches. Practically, this would be quite as likely to happen after the use of the interrupted suture. But in reality it never does happen after either one. What does happen occasionally, when one row is used alone, is, that some single stitch in the line gives way, owing to its insufficient hold, allowing it to cut out, and then an ever- sion of the mucous membrane and leakage occur. This is a uniformly fatal mishap,-hence all experience shows that a double row is needed to secure perfect union. Each row should have about six stitches to the inch and the rows should be parallel to the cut edge-one-sixth of an inch apart. With this double row carefully applied, no sutured opening can leak. The time occupied in making a running suture is one- third that of the interrupted, and it is therefore coming into vogue as the most desirable. The choice of sutures for the different rows lies with the operator. The interrupted Lembert has had preference in the past. It is acknowledged to take three times as long to apply as the continuous, and Fig. 354. Fig. 353. 534 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Intestinal Suture, Intestinal Suture. is therefore being displaced by the latter in suitable cases. After an extensive use of all methods in living sub- jects, having regard both to security and time, I prefer to apply a quick-running Lembert suture (Fig. 353) near- est the cut edge of bowel, and outside that the Halsted "quilt" suture or its modification (Fig. 356). In my observation the " quilt " suture has an advantage over all others, in that it in- cludes and ties up a certain length of the longitudinal muscular fibres within the grasp . of each knot, thus fix- ing the definite length of the wound beyond the power of its elongation or shortening during repair. This point has not heretofore been empha- sized, but it is one of impor- tance. There are times when a continuous suture "over- hand " may be taken, of the edge of a stomach wound, for example- the needle penetrating both mucous and peri- t o n e a 1 coats. This may be utilized, for in- stance, in a case w'here one cuts out an ellipti- cal piece of the entire wall of the organ to include an ulcer, or a neoplasm. It is found that the wounded edge, being thick and vascular, requires many points of clamping. It is here safe and advantageous to suture the edge as above to check hemorrhage and secure the edges. This thread then becomes turned entirely into the stomach when the outside sutures are applied. It is of interest to observe what becomes of the threads. They all, even the continuous sutures, seem to work toward the cavity of the viscus by natural law. One end having become free, the remainder is soon cast off into the bowel. From two to six or eight weeks is usually enough time for them to work free. Experience goes to show that if the thread, needle, and operator's finger are sterilized, there is not much to be feared from sepsis due to intestinal contents. At least, careful rinsing of the parts sutured during the operation-with plain boiled water-gives non-suppurat- ing results, and stitch-hole abscesses must occur infinitely less often than in the case of the skin, unless the mucous membrane be involved. Where the thread penetrates and secures two edges from mucous membrane to mu- cous membrane, it acts as a seton, and as the inflamma- tory fluids exude they drain into the bowel-thus doing no damage,-provided the adjacent peritoneum is well secured by the outside row of stitches catching up only peritoneum. To Dr. Nicholas Senn is due the credit of a thorough and exhaustive experimental study of the subject of in- testinal repair, and to him will ever be credited the addi- tion of certain aids to operative work. Abrasion of the approximated surfaces has been mentioned. Omental grafting, so called, will stand as a useful adjunct. It has been shown by Schede and others that the peri- (SUPPLEMENT.) toneal cavity will tolerate the presence of considerable masses of living tissue, such as pieces of muscles, or even cancer tissue, deposited in an aseptic state, free within it. Such pieces, quickly blanketed by a layer of lymph, are soon vascularized and digested, as it were. If a strip of omen- tum two inches wide, and as long as needed, be torn from the edge of the patient's omen- tum, wrapped round the sutured bowel, and tacked in place by three or four sutures, it quickly becomes adherent to the parts under- neath and acts as a reinforcement to the junction. This is the so-called " omental graft." It has been showm to be useful, and is un- questionably a prac- tical pr o c e d u r e. Whenever greater security is needed in cases where the oper- ator is not quite satis- fied with his sutur- ing, it should be used. In most operations, however, it is un- necessary. If used, it must be entirely de- tached from its omen- tum, otherwise it will leave a band to cause internal strangula- tion. Senn found ex- peri men tally that such grafts of omen- tum became firmly adherent in from twelve to eighteen hours, and were freely supplied with blood-vessels in from one and a half to two days. Having settled in our minds the best methods of sut- uring simple wounds of the intestine, we turn to the variously complicated conditions which the surgeon is called upon to meet. They consist of either gunshot wounds, perforating ulcers, obstructions, tumors, stenoses from contractions, kinks or twists, or resections for de- stroyed portions of bowel, as in hernias, or old fecal fistulse. Fig. 355. Fig. 356. Fig. 357. In considering these maladies we may, for the purposes of this article, regard the intestine as either the subject of a lacerated wound or ulcer, or as resected after one of the diseases named, and study the best methods of re- pairing the lesion. 535 Intestinal Suture. Intestinal Suture. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. For a lacerated wound or a gangrenous perforation one may split the intestinal wall an inch and a quarter in each direction from the perforation, lengthwise, and, bending the bowel, make an elbow at this point, turning the ulcer in and bringing the cuts together where they are stitched about, so as to restore the continuity of the bowel. I have done this in a case of gangrenous ulcer trans- verse to the bowel, where it had been held under the sharp inguinal ring (Figs. 357, 358, and 359). The alter- (SUPPLEMENT.) iodoform gauze for thirty-six hours. At the bottom of the-wound is the wounded bowel. If when the tam- ponade is removed the lymph has sealed the wound, nothing need be feared, no replacement of the tampon is needed - at most, a small drain may be established through the abdominal wall; and to insure prompt muon between the parts displaced by the tamponade, all that is required is to bring them into close contact. On the other hand, if leakage from the bowel occurs, it will form a fecal fistula which will, in nine out of ten cases, spon- taneously close in a few weeks. If, after a fecal fistula has formed, the edges of the abdominal wound and the surface of adjacent skin be- come quickly excoriated from the intestinal juices, it is an evidence that the portion of bowel which is wounded is situated high up toward the stomach, even though the loop seemed to be anatomically as low as the supra pubic region. The seemingly acrid secretions, though really of alkaline reaction, have so powerful a digestive capacity, that they do not spare the horny non-vascular layer of skin, and only stop at the papillary. The most exquisite pain follows from exposure of the nerve-ends in the skin. I have tried everything to relieve this distress and tide the patient over the few weeks during which the stenosis goes on so surely, and I have found no remedy as good as zinc ointment smeared on the cleansed skin, over which is laid coarse surgical gauze, in small compresses so dis- posed as to confine the discharge well. Simple spread- ing of salve cloths is useless, but the superimposed com- presses draw away from the skin the discharging intes- tinal juices, and only the lowest layer, which soon be- comes neutral, touches the tender skin. All other meth- ods than the above I have found to fail. I will not consider here why, when, or where the sur- geon has to resect portions of intestine, but will review his resources for restoring the continuity of the canal, after he has resected a complete piece of the intestinal tube. For the history of the earlier adventurers in this field one may refer to works on general surgery, such as Treves's " Manual of Operative Surgery." Practically, at present, we have a choice of three methods to accomplish our purpose :- First. End-to-end union. Second. Lateral implantation. Third. Lateral anastomosis. Each method is capable of being done by sutures alone, or we may use artificial mechanical devices aided by sutures. The ideal result would undoubtedly be attained by end- to-end union, if possible, without narrowing the canal. Practically, however, the operator has to consider the security of his suturing and the time consumed by this method. When intestine is cut across there is a part lying be- neath the mesenteric attachment which has no peritoneal coat. When this is sewed to the corresponding part of the other end, the reparative lymph thrown out from the peritoneal surface is wanting here, and it is therefore the point at which fatal leakage of fecal matter often takes place. This can be avoided by extreme care, as follows: Place an independent stitch at the cut edge of the mesen- tery close to the bowel, uniting its two layers. This practically makes the peritoneal coat continuous around the circumference. Two layers of sutures are essential: one of the mucous edges only, which must be knotted on the inside ; the second, limited to the peritoneum. In tins, the so-called Czerny-Lembert suture, the con- tinuous suture is not available, because, if tightened se- curely enough, it acts like a purse-string, and leaves an annular stricture. The time consumed in making the circuit of the bowel by interrupted sutures, a double row, is very great, amounting to from an hour and a half to two hours, in thoroughly perfect work. The re- sult, however, when complete, leaves nothing to be de- sired. One risk must be borne in mind, namely, that if the Fig. 358. native of resection or artificial anus was avoided, and the patient was restored immediately to perfect health, which she has maintained for four years past. For impending perforation, instead of resecting or sut- uring, one may adopt Chaput's suggestion of stitching a convenient piece of adjacent intestine to the ulcerating surface, thus protecting the peritoneal cavity and insur- ing its safety in case the perforation follows. In such an event the attempted discharge through the ulcer would be thrown back into the bowel from whence it came, or if it perforated through the piece of bowel plastered up against it, there would be only a fistula between bowels which would soon close spontaneously.* If a portion of intestine is torn in dissecting it from Fig. 359. an inflammatory association with a tumor, the abdom- inal wall, or another piece of bowel, the degree of tearing will determine whether to suture or to resect, or to form an artificial anus temporarily. A small tear should al- ways be sutured at once, if feasible. If the tissues are in a bad state and it is doubtful whether the sutures can be relied on, the wound should be tamponed with * This method of Chapul (Gazette des Hopitanx, 1892, No. 138) ap- plies as well to torn or gunshot wounds of the bowel, ami may on occa- sions prevent a resection. It requires nice judgment, however, on the part of the operating surgeon to choose between these methods. In badly torn wounds, especially if a bullet traversed the gut. I would pre- fer the resection and lateral anastomosis, as described later on. 536 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Intestinal Suture. Intestinal Suture. arterial supply coming to the cut edge from the mesen- tery is interfered with by too close suturing there, where it is most demanded, there is danger of gangrene of the sutured edge, with late extravasation of faeces. This is due to the anatomical fact that the arterial circulation in the intestinal coats courses around the bowel and not lengthwise of it. With fifty per cent, of deaths from this method in the A modification of this method consists in stripping the mucous membrane from the inside of the distal end for a half-inch or more by curette, and stitching the proximal end into it so that the serous membrane of the latter is stitched to the freshened interior of the distal end. This has been found to work well in dogs' intestines, but it seems a perilous method to use in the relatively thinner human bowel, where much depends on the main- tenance of perfect circulation in the edge. Where resection of a stricture has been performed, or a malignant growth has been excised and the tube of bowel above is dilated to a much larger size than that below, Wehr has suggested that the smaller be trimmed obliquely, so as to match the second in diameter, and then the stitching of two equal openings, one circular, the other oblique, can be accomplished by double suture. This jointure will make a wide angle elbow in the course of the bowel, but not one that would be disposed to kink. The oblique cut being made at the expense of the side op- posite to the attached mesentery, there would be no dan- ger of a sloughing edge from interrupted blood-supply. The second method, of " lateral implantation," is in Fig. 360. hands of good operators, it is not surprising that we have to turn to less tedious and dangerous methods. End-to-end invagination has been advised by many- in imitation of the accident of intussusception. The dis- tal divided end is first inverted, and the proximal drawn into it by two sutures fixed to its peritoneal edge, thrust into the lower end, and brought out on its surface where it is temporarily secured, while a series of circumference sutures is applied to the edge where the inverted cuff of the lower lies against the surface of the upper end. Fia. 362.-Senn's Decalcified Bone Plate. imitation of the normal anatomical relation of the ileum to the caput coli. If we have a free end of the ileum left after a resection near the colon, we may resort to this simple procedure after the method first devised by Jobert, but best modified by Senn, as illustrated herewith (Figs. 360 and 361). This method may be described as follows :- A fiat band of rubber is stitched by the edge on the inside of the proximal gut to hold this firmly open. A slit is made in the colon, and by two stitches, one on either side, taken like large quilt stitches, the small end is drawn into the large bowel, whose edges are inverted thereby. A continuous suture is made around the line of meeting, thus shutting it off perfectly. This method is not tedi- ous and deserves attention. Whether the aperture would tend unduly to close later, or whether intussusception would take place from peristalsis, and blocking ensue, cannot be said. To this method may be applied some of the aids mentioned later, such as bone buttons, etc. In lateral anastomosis we have a method that has a great field of usefulness in the future. The operation essentially consists in establishing an opening between two adjacent portions of bowel tightly secured together, thereby switching off the intestinal contents to another channel. Fig. 361. This method has been very successful in canine experi- mentation, and may be used successfully in men. It is likely to get blocked by the obstruction of the thickened coats plus the food products, and thus be pushed on by peristalsis and beget a severe and genuine intussuscep- tion. 537 Intestinal Suture. Intestinal Suture. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) The proposition of thus making a short circuit for the intestinal fluids originated with Maisonneuve, who prac- tised the method on two patients, who died. This dis- couraged further efforts to perform the operation. It was not resorted to again until 1881, when Billroth and Wollfler each operated on a case of pyloric stenosis from cancer, by establishing an opening between the stomach and small intestine, calling the operation gastro-enteros- where the edges of the plates press them together. The plates are then laid together, and the edges of both open- ings are thereby tightly sandwiched between them, when the four strings are tied in strong, square knots. These knots are cut short and tucked in between the plates. The intestinal edge being so slippery, will often be squeezed out between the plates ; hence a few outside Lembert sutures, or one continuous suture, are needed to complete the operation. Senn advises a light abrading of the peritoneum between the plates before tying. The excellence of the method has been proven by many successful cases, I have myself used it with per- fect satisfaction in the case of a carcinomatous stricture of the hepatic flexure of the colon, in which, after twenty-five or thirty pounds of soft faeces had been evac- uated by inguinal colotomy, and ten days had been allowed for recuperation, I united the ascending and transverse colon by lateral anastomosis, by means of Senn's plates, with perfect success. Six months later, the man died of cancer, and I found the opening I had made had contracted to a small orifice only large enough to allow fluid faeces to pass, hence requiring him to use laxatives for three months before death. The original aperture was an inch and a half in diameter. I felt the need of making larger apertures than the plates allowed, and devised the catgut rings, which have since been used with great success by many operators. This was the first modification of Senn's device, and has the double advantage of being made large (the opening measuring two inches in length) and of not interfering with the course of faeces through the aperture from the moment of operation. This device has been used many times with perfect success in grave cases of lateral anastomosis, and has usually required twenty-five minutes for com- plete adjustment. Sejata^ethod can be satisfactorily done, when everyth^j^j3epared, in fifteen minutes ; but I consider the si:MyLN^'ture obtained, the blocking by bulky plates, th^^^^ing of complicated knotted threads attached to the wound, the imposition, upon the sensitive intestine, of a mass of comparatively indigesti- ble foreign substance, the removal of which is to be effected by peristaltic action, which causes a tugging at the wound, as a menace to perfect security that is illy compensated for by a gain of five or ten minutes' time over another method by suture alone, to be described further on. Among many modifications of Senn's bone plates published later, I may mention Brokaw's segmented rub- ber rings (" Trans. Southern Surgical and Gynecological Fig. 363.-Ileo-colostomy with Decalcified Bone Plates, showing plates in position, one in the ileum, the other in the colon. tomy. Since then it ha^ been widely used. To obviate the tedious suturing of the openings, Senn, of Milwau- kee, used disks of decalcified bone (after trying all other absorbable but firm substances) for the purpose of ap- proximating the serous margins about the anastomotic openings. His two objects were, first to save time, second, to make safe apposition. That the principle of lateral anastomosis has been uni- versally accepted by surgeons as worthy of adoption, is proved by the energy and ingenuity shown by operators everywhere to modify and simplify the technique. The two objects aimed at have been to save time and add se- curity. Up to the present writing, no device has shown itself better than Senn's bone plates in saving time. These aids are made from the hard bone of an ox thigh sawed in a plane so as to make a bone plate three inches long, an inch wide, and a quarter-inch thick. This is soaked twenty-four hours in ten per cent, hydrochloric acid, to decalcify it. A brief washing in alkali removes the acid. The pliable bone can be cut with a penknife. A hole is made in the centre an inch and a half long, and four small holes are drilled beside it. Threads are now secured in it as shown in the diagram (Fig. 862), and the plate is kept in a solution of equal parts glycerine, alco- hol, and water, ready for use. The mechanical part of its application is extremely simple. The two parts of bowel to be joined are drawn up into view and confined by compresses of gauze or damp towels. An incision is made lengthwise of each bowel an inch and a half long, opposing each other, and into each opening a bone plate is slipped. A needle hav- ing been threaded with each of the two side-threads, is to be carried through the plate and the edge of the cut from within outward. This secures the plate against slipping. The two end-threads lie in the angle of the cut. The same is done to the other plate. The two, plates being then in position, a half-dozen Lembert stitches are placed be- hind the plates to secure the coats of the bowel together Fig. 364.-Ileo-colostomy without Resection of the Csecum, showing plates in position, one in the ileum, the other in the colon. Ass., November, 1889 "); also Robinson's rawhide plates, made of a long disk of beef's hide, shaved, macerated one day in saturated salt solution, then dried, cut into shape, threaded, and kept in alcohol until used. This material has been found serviceable. Davis's catgut mats (Virginia Med. Monthly, Septem- ber, 1889) were devised later, and have been used, but the author of them has abandoned their use. 538 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Intestinal Suture* Intestinal Suture. Dawbarn advises oval rings, cut from raw potato, to be used much as Senn's plates are, and claims that they ought to remain firm twelve hours, which would give time for plastic adhesion to be fairly secure. He adds to the usual technique two features that seem unneces- sary and unwise, namely, the use of hydrostatic pressure through one of the open ends of bowel, to test the se- curity against leakage after the plates are tied in ; and, second, the introduction and fixation of the plates through the open ends of bowel, and cutting of the anastomotic opening through both walls of the bowel at once by a knife passed into one open end (Annals of Surgery, Feb- ruary, 1893). Jessett, of London, has devised a bone plate like Senn's, with a cylinder of bone fitted into the central hole. This pushes into the opposite plate hole and secures the exact fixation of the plates, with the addition, of course, of some suturing. Baracz has devised plates of raw turnip, which he has used successfully on the human subject, the anastomosis occupying three-quarters of an hour. They are like the potato, hard, easily prepared, and do not tear (Central- blat. f. Chirurgie, July 9, 1892). Mayo Robson has devised a spool of bone, or " bone bobbin," as he calls it, having a diameter of an inch, over which he sutures the bowel ends in end-to-end union, or inserts it in lateral implantation. Murphy has devised metallic buttons of oval shape, whose stems clinch each other when pressed together after the button part has been passed into the lateral opening in the bowel, and thus pinch the involved walls Thus the devices multiply, and in the hands of each inventor success is reported. The writer has tried many of the devicesupon animals and the human subject, and with what is commonly called brilliant results. Yet it seems to him that per- fect work, after all, follows the use of the suture alone. Fig. 36G.-After a Four-inch Incision and Sewing the Edges. Improved technique of lateral anastomosis by suture- gives a marked shortening in time. Twenty minutes have sufficed on several occasions to complete thorough anastomosis in human subjects. The operation should be conducted as follows : Let us suppose resection to be called for. If the bowel has faeces- in it, a ribbon of iodoform gauze is drawn through a small wound of the mesentery at the bowel edge, some inches above the trouble, and tied about the bowel so as just to stay the flow of faeces. The resection is quickly done with scissors, and the cut ends inverted by a double row of continuous fine black silk suture. The two ends are then overlapped four inches or more,, or laid side by side with ends together, as may be most convenient. I have tried both methods on the human, subject, and cannot see that the results are less perfect either way. Several needles are prepared, armed with fine black silk twenty inches long, tied with a double knot at the eye of the needle, and with one end cut off one inch from the eye. Two rows of continuous suture of the peritoneal and muscular coats are made, about four inches long and one-quarter inch apart (Fig. 365). An opening is now made with blunt-pointed scissors parallel to the sutures, and an eighth of an inch from them, leaving both rows on one side the cut. The latter should be between three and four inches long. Some bleeding points may now need clamping. Fig. 365.-Suturing Intestines in Apposition before Incision. so that adhesive inflammation is engendered at the mar- gin of pressure, and this sloughs when the united but- tons come away. This device be has used to produce quick anastomosis between the gall-bladder and intes- tine, as well as between two different portions of the bowel (N. Y. Med. Rec., December 10, 1892). 539 Intestinal Suture. Intestine Wounds. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) A fresh thread and needle are now' made to secure both the cut edges next the sutures together ; a simple over- hand suture is best (Fig. 366). It arrests all hemorrhage, and the clamps are removed as the needle reaches them. The stitch is now made to quickly overhand each free edge by itself. We have thus far made two long button-holes, secured on one side by three rows of sutures. It remains only to rinse the parts with pure water and continue the two outer rows around the still unsecured edge. This is easily and rapidly accomplished (Fig. 367). On one side of the opening are three row's of stitches, which give great stability to the union, especially as the The absence of all paraphernalia but scissors, thread, and needle, makes the procedure most attractive. There is one feature of the lateral anastomosis opera- tion which has been largely overlooked, but which the author believes to be of the greatest moment in determin- ing the lasting benefit of the operation ; that is, the ques- tion of stenosis of the newly made orifice. The law of cicatricial contraction, which operates so effectually in closing accidentally made fistulae into the intestinal tract, or comparatively large ulcerations be- tween the gall-bladder and the intestines, is here the direct antagonist of the surgeon in his endeavor to create a permanent and adequate anastomotic opening. The incised opening for Senn's plates is about an inch and a half in length, for others it is still smaller, and the contraction of such an opening, sometimes with great rapidity, has in some cases rendered it entirely inade- quate to its service. Not many autopsies remote from date of operation are recorded. * Three of my own cases of lateral anastomosis illustrate my point admirably. In the first, done in 1888, where I united the transverse and ascending colon by Senn's plates, the patient lived six months. The aperture had contracted from an inch and a half down to three-quar- ters of an inch, and the man required constantly to use laxatives. In the second, where I united ileum to ileum by catgut rings, the patient lived six months. The con- traction reduced the opening from an inch and a half to one-half inch. In the third, eight months after lateral anastomosis of the sigmoid flexure following resection, the aperture of three inches contracted to one and a half. This was perfectly competent to do the functional work of the bowel. These results were relatively good, but two cases done after the suturing method above described, around open- ings of between three and four inches in length, have main- tained perfect functional action for over a year and a half. I believe the future utility of lateral anastomosis lies in making these long openings. This, I think, is almost impossible with bone plates, and only to be done with very long rings or vegetable plates, and then only with less security and with the consumption of as much time. The contrast is enormous between dropping back into the abdominal cavity a beautifully sutured, absolutely tight and flexible anastomosed end of intestine to any position in the abdomen which its natural surroundings demand, and returning a huge, stiff bunch of bowel, in- side which there is a pair of big plates of bone or raw potato, to remain as irritating foreign bodies, stimulating peristalsis, and tugging at the wound until they become softened enough to be swept on by the current; or, as in one of Dr. Senn's cases, to be vomited up after danger- ous retching. As regards time, even were it proven that a hand equally expert at each method could do that by plates a few minutes quicker, the relative advantage of the two procedures for safety would still lie with suturing. But, as a matter of fact, I have found that to do thor- oughly a lateral operation in the living subject, by either plates or rings, takes twenty or twenty-five minutes, and the same operation by simple suturing, done with the greatest nicety and perfect security, has taken me twenty minutes. In conclusion, the author still feels that what gain has been made in intestinal anastomosis and suturing is due to improved understanding of the needs of aseptic work and intelligent handling of the viscera ; that the attempt to simplify the technique of lateral anastomosis by plates, rings, and the many devices extant has not improved it; that lateral anastomosis is, in most cases, the speediest, safest, and best method of restoring the canal ; that sim- ple and thorough suturing with fine silk continuous sut- ure, after the manner detailed, is the most satisfactory ; that, in order to allow for the inevitable tendency to ste- nosis, an aperture nearly four inches long should be made between bowels ; that, while it may assist in forti- fying the lymph union, abrasion of the opposed sur- faces of peritoneum is not necessary to quick and solid repair. Robert Abbe. Fig. 367. innermost includes the entire thickness of both edges. This is especially a strong point in uniting bowel to stomach (gastro-enterostomy), inasmuch as the disposi- tion of both viscera to sag away from each other brings a little added strain on the back of the union. Anastomosis thus done may be tested by water press- ure, and will be found never to leak. The question of time gained, during what is usually a prolonged operation-perhaps five or ten minutes' gain, at most, in the face of the uncertain advantage of plates, rings, buttons, and bobbins--is one that in the author's opinion is greatly outweighed by the superior advantage of having absolute security against leakage, blocking, etc., by the method of simple suturing. The technique of the latter procedure is a matter of easier accomplish- ment and far greater satisfaction in its results than that of the newer methods. 540 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES, Intestinal Suture. Intestine Wounds. INTESTINES, WOUNDS OF. Intestinal wounds de- pend on the same causes as wounds elsewhere. The in- jury usually comes from without; rarely, it is due to a foreign body in the intestinal canal. Each anatomical division of the intestinal tract is lia- ble to injury, but those portions that are most extensive or most exposed are obviously in greatest danger. For these reasons the ileum and jejunum suffer most fre- quently, the colon occasionally, the duodenum least of all. In contusions, however, the duodenum seems to suffer a little more frequently than the colon. The lat- ter, especially its vertical portions, has but a limited range of motion, and is therefore poorly protected against traumatic influences. It possesses, however, the immunity afforded by a deep location, comparatively limited use, and dense protecting structures. The mobility of the intestines, due to their lax attach- ments and to the peculiar nature of their investing mem- branes, their elasticity, and the yielding nature of the tissues about them, affords the greatest possible natural immunity from violence that is consistent with the proper performance of the functions of the human body. While in normally developed adults the divisions of the intestine present no decided variations from each other in their relations to the abdominal wall, yet Treves has shown it to be impossible to definitely localize any certain portion of the jejunum or ileum by external ex- amination. In Treves's own words, "there is no sys- tematic arrangement of the coils of the small intestine. There is a disposition for the bowel to follow an irregu-. larly curved course from left to right, but this disposi- tion can never be relied on. Such as it is, it may be ex- pressed a3 follows : The gut starting from the duodenum, will first occupy the contiguous parts of the left side of the epigastric and umbilical regions. The coils then fill some part of the left hypochondriac and lumbar re- gions. They now commonly descend into the pelvis, re- appear in the left iliac quarter, and then occupy in or- der the hypogastric, low'er umbilical, right lumbar, and right iliac regions. Before reaching the latter situation, they commonly descend again into the pelvis. The coils found in the pelvis belong usually to the lower ileum and to the bowel, between two points respectively six and twelve feet from the duodenum." Causation in General.-The violence coming from without, or arising within the canal, may be called the exciting, while the habits, occupation, idiosyncrasy, a,nd surroundings of the patient are the predisposing causes. The nature of all intestinal wounds usually indicates the cause, though a single form of violence may pro- duce a wound of multiform characteristics. The di- rection and degree of the force, the magnitude and char- acter of the agent transmitting it, determine the extent, and largely also the number and variety of the wounds inflictea. The direction of a wound of the intestines, as well as the size, exerts an important influence on its lo- cal physical phenomena. Causation of Contused and Lacerated Wounds. -Contused and lacerated wounds differ only in degree. In contusions the intestinal walls are bruised, in lacera- tions they are torn. These forms are commonly due to external violence, and when thus caused both varieties may be well marked at or near the same situation. A considerable degree of external violence is required to cause a laceration or a severe contusion of the intestines, owing to their mobility and flexibility, and also to the nature of their investing tissues. Despite this fact, how- ever, cases of laceration occur from blows so slight, or through agents of such a character, that no injury is done to the abdominal walls. MacCormac has reported several such cases. Usually the agents transmitting the force have a blunt outline. The passage of the wheel of a loaded vehicle over the abdomen offers a frequent il- lustration of the manner in which the violence is in- flicted ; also a blow from the clenched hand or from the kick of a horse or a man, especially if the intestine be forced against the spinal column, or if the violence be received at a point where dense fecal impaction exists. Partial distention, according to Curtis, who made an (SUPPLEMENT.) analysis of 116 cases, diminishes the danger of rupture, while great distention of an isolated loop increases it, even for a loop not in contact with bony parts. The in- testines may-be bruised and even lacerated by imprudent manipulations for the reduction of hernise, and the colon has been torn by the incautious introduction of the hand or an instrument into the sigmoid flexure. Contusions with or without lacerations have been caused by knead- ing the abdomen to overcome intestinal obstructions de- pendent on fecal impaction, and rupture has occurred from the force exerted by circumscribed collections of gas generated in morbid obstructive conditions. The force of spent pieces of shell has caused laceration of the small intestine. In 113 of the cases analyzed by Curtis, the duodenum was injured in 6 instances, the jejunum in 44, the ileum in 38, other portions of the intestine in 21, and the colon in 4. Non-penetrating gunshot wounds of the intestine are essentially contused injuries of that structure. However, in penetrating gunshot injuries, the character of the in- testinal wound assumes a different aspect, due, of course, to the penetration of the intestine by the missile causing the abdominal injury. Still, in these instances one fre- quently meets with both contused and lacerated wounds, independent of those due io direct penetration, since the mobility of the intestine or a mere impingement upon it of the missile fails to cause direct penetration. It is proper to say, however, that the borders of a penetrating gunshot wound of the intestine possess the character- istic features often of lacerated and contused wounds, although, for obvious reasons, in a much less degree. Penetrating gunshot wounds of the intestine are more frequent in civil than in military life, as in the latter the trunk is exposed as little as possible and the missiles fly high, while in the former the attacks are often unex- pected, and, therefore, the recipient is illy prepared to guard against them. Moreover, the range of the former is shorter, therefore the aim is better. It is interesting to note at this time that the percentage of gunshot inju- ries of the abdomen that are reported as resulting from the late war, is astonishingly small (about 0.035), while those of the head were 0.15. The increased percentage of the latter is due to the greater exposure of this part of the body. No definite estimate can be made prior to in- vestigation of the number, size, direction, or exact nature of the injuries of the intestine that may follow penetrat- ing gunshot wounds of the abdomen. The original text (see Vol. IV.) discusses this in greater detail. Abdominal Symptoms.-Pain, tenderness, tympa- nites, and bloody stools, with or without the protrusion of the viscus and the escape of the intestinal contents, are common symptoms of intestinal wounds. They are greatly modified, however, with reference to their pres- ence and their association with each other, by the nature of the wound itself. Pain and Tenderness.-Pain is not a reliable symp- tom. Soon after the occurrence of an injury, there may be little, or indeed none, even when perforations are present. Commonly, however, pain and tenderness are among the first of the abdominal symptoms. Located primarily at the seat of the wound, it is dull or lancin- ating in quality, the former being more characteristic of contused wounds. As a rule it increases rapidly, be- comes burning in character, and is accompanied by ex- quisite tenderness of the abdomen, retraction of the thighs, and obstinate constipation. It is increased by any muscular exertion, even the act of breathing. Some- times there are griping pains with a desire to stool. Re- tention of urine may occur, due to the shock, to the peri- tonitis, or to the treatment employed. Emphysema.-This sign is not associated very fre- quently with penetrating wounds of the abdomen, but when present is usually due to the escape of intestinal gases into the connective tissue situated between the in- testine and the abdominal walls ; hence it is associated especially with injuries of those portions of the intestinal tract that are not entirely surrounded by peritoneum. It may be limited to the immediate neighborhood of the in- jury, or may become general by spreading gradually into 541 Intestines, Wounds of. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) the surrounding tissue, and it also may be due entirely or in part to a complicating wound of pulmonary tissue. Emphysema has been considered by some writers as a •certain sign of intestinal perforation, when associated with a suspected penetrating abdominal wound. Its di- agnostic value is much lessened, however, by the fact that it has been frequently observed in connection with non-penetrating wounds of the abdominal wall, one such instance, at least, having fallen within the observation of the writer. If decomposing processes occur in the course of a penetrating wound of the abdomen, emphy- sema may result even though the intestines themselves have not been injured. In such cases, however, the ap- pearance of the emphysema is delayed. Contused Wounds.-The diagnosis of contused and lacerated wounds can readily be made from that of all other forms, but to differentiate between these two is more difficult. There will be a history of abdominal injury received in some such way as already indicated. There may be external evidences of such injury, though in some instances there are none. If the intestinal wound be a contused one, there will be evidence of shock. Res- piration may be modified by the pain attendant on the act of breathing. Vomiting is a frequent but not con- stant symptom. Pain is usually present in the begin- ning, not so acute as in lacerated wounds, but dull, deep- seated, and burning, denoting a beginning inflammation. These symptoms may subside in a few days, or they may be quickly followed by a sudden increase in the pain and more urgent manifestations of peritonitis, or by collapse. These unfavorable symptoms may be caused by the rapid increase of a localized inflammation, by a sudden hemor- rhage from a previously contused vessel, or more com- monly by a sudden extravasation following sloughing of some portion of the intestinal wall. The constitutional symptoms keep pace with the local. The temperature rises, the pulse becomes more frequent and harder, and the patient soon shows evidence of collapse. The degree of tympanitic distention of the abdomen is usually proportionate to the extent and intensity of the inflammation. The tympanites may be due to air in the peritoneal cavity or in the intestine. In the former condition it comes from a wound in the gut, and in con- tused wounds it will, therefore, occur at or soon after the exacerbation of symptoms, while in lacerated it fol- lows quickly the intestinal injury. Tympanites due to intestinal distention comes more slowly and is less in degree. In lacerated wounds, fecal extravasation occurs as a rule. It was present in 107 out of 113 cases (Cur- tis). The symptoms will, therefore, appear earlier than in contused wounds and be more severe. In both vari- eties there may be vomiting of blood, particularly if the duodenum or jejunum be injured. Blood may also be passed at stool, and if the amount be small and clotted, it indicates injury to the ileum. If the blood has to traverse a considerable portion of the intestine, it will be darkened in color and consistency by the intestinal fluids. The possibility of coincident diseases of the intestines causing hemorrhage must not be forgotten. Nor must it be forgotten that a patient may have re- ceived either a contused or a lacerated wound of the in- testines, and yet present no symptoms for a few hours. MacCormac has reported one such case, and two others where vomiting was the only symptom, yet all three had rupture of the intestine and died within forty-eight hours. Hydrogen gas has been recommended by Senn as a means of determining whether or not, in a case of pene- trating abdominal wound, there co-exist perforations of the intestines. He has demonstrated that under slight but steady pressure, the patient being relaxed by an an- aesthetic, the gas may be forced from the anus past the ileo-caecal valve to the mouth. If perforations exist the gas escapes into the peritoneal cavity, its presence being denoted by free tympanites, loss of liver-dulness, etc., or it will appear at the abdominal wound, where it may be ignited. If the distention follows the line of the colon, and, after passing the valve, be confined to the umbilical and hypogastric regions, it indicates that the intestine is intact. The gas in passing the valve causes a blowing or gurgling sound which may easily be heard with a stethoscope. The method of using it is as follows : The gas, generated in the ordinary manner (care being taken to have it pure), is collected in a rubber bag holding about four gallons. This bag is connected with a rectal tip by means of a rubber tubing and stop-cock. The rubber bag being tilled, the rectal tip is inserted and the margin of the anus pressed against it to prevent the re- turn of the gas ; the bag is now subjected to gentle press- ure, the valve yielding to a force varying from one-half to two pounds. If the external wound points to the pos- sibility of stomach injury, then insufflation should be practised through a stomach tube. The disadvantages of the method are that it prolongs the operation, some- times makes the returning of the bowels a very difficult matter, and occasionally, when perforations exist, it fails to discover them-items which, according to the majority of observers, outweigh its advantages. In addition to this, there exists the danger of forcing a portion of the intestinal contents into the abdominal cavity, particularly if they be fluid, and be located in or at the point of per- foration. Local Treatment of Hemorrhage.-Hemorrhage through the abdominal wound may arise either from the wound itself or have an intra-abdominal origin. In either case the indication is to tie the bleeding vessel. This can be easily done if it be situated in the abdominal wall, although it may be necessary to enlarge the opening for that purpose. Bleeding from within the cavity is con- sidered in the great majority of cases a positive indica- tion for laparotomy. Its treatment by and during lapa- rotomy will be considered under gunshot wounds. If, in a given case, for any reason laparotomy may not be per- formed, the treatment must be palliative. The patient is kept quiet, and cold applications made to the abdo- men. The external wound must remain unobstructed, so as to permit the free escape of blood that might other- wise collect in the abdominal cavity. A dressing of moist antiseptic gauze will serve the double purpose of protecting the wound and acting as a drain. In these admittedly hopeless cases, it is not impossible that press- ure on the abdominal aorta, combined with transfusion, may prolong the patient's life. Should the hemorrhage thus be controlled, laparotomy during continuance of the pressure may yet offer an additional means of preserving life. Treatment of Lacerated and Contused Wounds. -A lacerated or contused wound of an intestine may or may not admit of abdominal section. There is, of course, less danger of fecal extravasation in such a wound than in one associated with abdominal penetration, as the pene- trating agent may carry the infection from all parts of the wound into the peritoneal cavity. If the symptoms are mild and rupture seems improbable, adopt the expectant plan. At all events, the performance of laparotomy should be deemed unwise in these cases after sufficient time has elapsed to permit the formation of adhesions contiguous to the injured portion. Severe hemorrhage, or serious visceral lesion, demands prompt operative inter- ference. Laparotomy to be serviceable must be done early, and not left until peritonitis sets in. In a collec- tion of eleven cases operated on after a few hours had elapsed, and as peritonitis was beginning, all died. Shock, usually great in these cases, is much increased by a long operation. For this reason many advocate the formation of an artificial anus. The choice between this and en- terorrhaphy will depend in a measure on the experience and preparation of the operator. A wound located at a point of the intestine that would lead to rapid impover- ishment of the patient from the formation of an artificial anus, should be treated by enterorrhaphy, even though the patient be exposed to greater immediate danger. Treatment of Punctured and Incised Wounds.- In all uncomplicated punctured wounds of the intestine not more than 8 mm. in length, the question of abdomi- nal section need not be raised. If it be thought larger than this, the measures adopted will be governed directly by the size of the wound and acuteness of the symptoms. 542 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Intestines, Wounds of. Incised wounds of the intestines are more dangerous than punctured ones, because of the greater liability to hemorrhage and extravasation. Their general treatment is similar to that of other varieties. In performing lap- arotomy the incision is usually made in the line of the wound rather than in the median line, because it affords the most direct route to what is usually a limited injury. Treatment of Gun-shot Wounds.-In opening the peritoneal cavity, the initiatory incision should be made in the median line, especially when it shall appear that if the opening be made at the seat of injury, it will not offer an adequate opportunity for a proper inspection and treatment of the injured parts. The probable direc- tion taken by the missile should be considered in all such instances. It has been advised, and wisely, that when the intra-abdominal wound is probably limited to the more fixed portions of the intestinal tract, or to other ab- dominal viscera, in the absence of symptoms of hemor- rhage the incision be made in the line of the abdominal wound. After opening the peritoneal cavity, instead of using forceps, which bruise the tissues, to limit perito- neal retraction, a long suture of silk or catgut should be passed through the peritoneal borders for this purpose, and held by an assistant or otherwise properly anchored. The agents employed in repairs of the intestine in- clude materials for ligatures, sutures, etc. ; carbolized iron-dyed silk may be employed for both purposes. An- tiseptic catgut of small sizes may be used exclusively for ligatures, although some prefer to rely solely on silk. The needles required for sewing peritoneal and intestinal surfaces will depend on the preference of the operator, some using curved needles of small size and without sharp edges, others ordinary straight, slender sewing needles. The latter are particularly serviceable in introducing the Lembert suture. In addition, there are required thumb and mouse-tooth forceps to raise the borders of the wound, artery and needle forceps for obvious purposes, large catch-forceps with horseshoe- shaped blades to close the openings at the side of the intestine, of a similar shape, two or three long-bladed catch-forceps with the blades protected by rubber tubing to compress the intestine transversely, holding back its contents above and below the wound. (Several instru- ments have been devised for this, but the fingers of an assistant are best and safest.) Curved and straight scis- sors, aneurism needle, grooved director, scalpels, and other common surgical instruments are also necessary. After opening the abdominal cavity, the blood and fecal matter under observation should be removed with small sponges as soon as seen. This should be done very carefully, when possible by gentle pressure rather than by wiping movements, as the latter provoke the further spread of the infecting agents. In either instance, a sponge should be changed with each effort at removal. The bleeding points immediately under notice should be tied. It is important to remember that penetrating intesti- nal wounds should be closed as soon as found, otherwise they may escape notice, and thereby furnish an ad- ditional risk of still further infecting the peritoneal cavity. The repair of the intestine should be accomplished by one of two methods: 1, by directly closing the open- ings ; 2, by excision of a portion of the intestine and the union of the divided extremities, which union may be accomplished by either circular enterorrhaphy or lat- eral anastomosis. The former method may be done when the closure of the wound will not diminish the in- testinal calibre more than one-third. Either of the latter methods when the gut is extensively injured. In cer- tain wounds where direct closure will narrow the calibre more than one-third, additional room may be gained by closing the wound transversely. To do this it may be necessary to increase the length of the wound by making longitudinal incisions at either end of it of suitable and equal lengths. The intestinal wall is then grasped at corresponding points on opposite sides, and drawn upon ; the longitudinal wound is thus converted into a trans- verse one, and in this position its borders are united. By this means a certain amount of "elbowing" is pro- duced. While, as a rule, it is unwise to trim the borders of intestinal wounds, yet care should be taken to exam- ine the border of a wound contiguous to an important vessel, to ascertain if the integrity of the vessel be endan- gered ; otherwise the closure without this precaution may be follow'ed by secondary hemorrhage. The wound may then be closed by either the Gely, Lembert, or continuous sutures. A double row of the Lembert or continuous varieties may be made, or a single row of each instead, or the Czerny-Lembert. (Of the continuous varieties, Treves recommends the right angle continuous suture of Cushing.) See article on Sutures. The sutures, to be reliable, must go down to and em- brace a thread or two of the submucosa, and not be more than three lines apart. The best material for su- turing the intestine is the loose-textured carbolized iron- dyed silk. If the mesenteric border only of the intestine be in- jured, the injured portion of the gut should be excised, because gangrene is liable to follow from injury to the vessels of this part. When the intestine is completely severed, either by the original injury or the knife of the surgeon, the diffi- culty of adjusting the cut borders is much increased. The portion to be repaired must be drawn well out of the abdominal wound and carefully isolated by sponges and towels that completely prevent blood, faeces, etc., from entering the abdominal cavity. The uppermost extremity of the divided intestine will be known by the greater amount of fecal matter seen at its open end. The intestinal contents must be pushed aside for some distance from the part to be operated on, and the bowel occluded above and below. This may be done by using the clamps already referred to, or by making a hole in the mesentery and ligating the intestine either -with a cord of iodoform gauze or a flat india-rubber band. The fingers of an assistant serve better than anything else. The use of the clamps may, as shown by Parkes, cause sloughing if carelessly or continuously applied. The excision is made with sharp, straight-bladed scissors, at a right angle with the long axis of the intestine. The length of the portion removed will depend on the extent of the injury ; it should always be sufficient to include it, even though it be six or eight inches in extent, and where multiform perforations exist near each other, it is advised to include them in one resection, even if the in- testine removed be three feet long. The danger, how- ever, of removing a so large and absorbing surface, must be remembered. The vascular supply of the intestine at the seat of in- jury must be carefully examined, and all that portion of gut excised that has an impaired supply of blood, else gangrene of the bowel may ensue. In fact, it is a wise precaution in excision always to divide the gut at those points which will afford the best vascular supply to the extremities to be united-that is, close to the entrance of a mesenteric vessel into the unimpaired portions. The mesentery corresponding to the portion of gut removed can be cut away in the form of an isosceles triangle, the base of which shall correspond to its intestinal attach- ment, or it may be ligated en masse, or in sections at its point of attachment, and allowed to remain free in the abdominal cavity. Parkes and others consider the latter plan unsafe, since, owing to the feeble vitality of its tis- sue, gangrene of the distal extremities of the mesenteric stumps frequently ensues. Parkes advises that the en- tire mass be included in one ligature drawn tight enough to check the bleeding, and that after the intestine has been united, the stump be stitched to the seat of opera- tion, thereby forming again as nearly as possible a con- tinuous mesentery. This method was in his experiments followed by less mortification. Another method is to make two incisions, one on each side of the mesenteric vessels, at a distance of about half an inch from them, through the wall of the intestine in its long axis corres- ponding in length to the portion of the intestine to be re- moved. Tear away the mucous lining of this mesenteric strip, and unite its peritoneal borders by a continuous suture of fine catgut. After the excision is completed 543 Intestine Wounds. Intra-Uter. Tampon. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) and the ends of the intestine have been united, the mesen- teric strip will present a looped appearance due to the approximation of the intestinal extremities. The open- ing of this loop should be united by sutures, and the op- posed surfaces of mesentery should also be transfixed, to prevent the formation of a pocket there. When the lig- ature en masse is employed, it is not considered safe to use catgut. As soon as all hemorrhage is checked, the extremities of the intestines are approximated by an assistant and some form of suture is introduced. The suturing is be- gun at the mesenteric border, care being taken to thor- oughly close the triangular space at this point caused by the reflection of the peritoneum from the walls of the intestine. After this, the protruding mucous membrane is pushed into the intestine and a suture is introduced at each of the three remaining aspects of the bowel, and then the intervening spaces are properly sewed. This is a better plan than to begin to sew at any given point and go directly around. In no instance should a suture be passed through the mucous membrane. If a Lembert or Gely be used, at least three to four lines of peritoneum should be included in the grasp of the suture at each ex- tremity of the intestine. A suture should be drawn only sufficiently tight to bring the severed borders in close ap- position, for if drawn too tightly the tissue grasped by it will slough. If a single row of sutures alone is to be made, they should be placed about five millimetres apart. If a double row is to be employed, those of the first can be deposited within six or seven millimetres of each other, and those of the second at intervals between the former. After the bowel is united, it is well to return to the mes- enteric border. This is the weakest portion of the wound. It should be covered by stitching the two peritoneal layers of the mesentery over it, or by an omental graft. A great many instruments and agents have been de- vised and recommended for the purpose of holding the divided ends of the bowel open while it is being sutured, but they are all or nearly all useless. Omental Grafting.-In certain experiments on dogs. Dr. Senn fixed a flap of omentum over the seam of an enterorrhaphy, the free or distal end being attached over the seam, the proximal remaining continuous with the omentum. These soon grew in place and thus reinforced the bowel. To avoid the danger of strangulation occur- ring through the loop thus formed, isolated grafts were employed and fixed round the suture. In every instance they retained their vitality. The intestinal peritoneum is lightly scarified before the flap is put in position, and in a few hours it is adherent. Senn's operation for intestinal anastomosis by means of bone plates, though devised to meet the requirements in cases of obstructive disease of the intestine, is yet ap- plicable to certain cases of injury, especially when time is a very important element. Recently intestinal anastomosis is being performed without the use of bone or any other form of approxima- tion-plates. The advocates of this method claim for it exemption from the special dangers following the use of approximation-plates, viz., leakage, irritation and sup- puration or hemorrhage, also obstruction from the plates themselves, or, later, from contraction of the cicatrix, etc. The operation, as described by Abbe, is briefly as follows : The resected ends of the intestine are inverted and closed by Lembert sutures approximating the serous surfaces. They are then overlapped to the extent of five inches and held there by two rows of continuous Lembert sutures, each row being an inch longer than the proposed opening. These rows are straight, in the long axis of the gut, par- allel, one quarter of an inch apart, and are both to be on one side of the anastomotic opening. The needle with its thread is to be left at the end of each row ready to be continued. The openings in the bowel are now made about four inches long, parallel with and one-quarter of an inch distant from the nearest row of serous sutures. The bleeding points are clamped and the clamps left on. A suture is then started at one end of the wound and unites by a continuous overhand stitch, which penetrates the entire thickness of the intestinal wall, the cut edges lying near to the rows of serous sutures. The free or more remote edges are whipped in turn by separate threads. This controls the bleeding without ligatures, the clamps being removed as they are reached, and it also prevents any union of the edges at the angles of the wound. The serous surfaces around the openings are now united by a continuation of the first two rows of sutures, their relations to each other and to the opening being preserved and ending where they began. Cleansing the Peritoneal Cavity and Closing the Abdomi- nal Wound.-All the bleeding points must be closed by ligaturing if possible, if not, then by cautery. It must not be forgotten that the tendency of intra-abdominal vessels to bleed when not exposed to the air is very great ; therefore a simple oozing before the closure of the abdominal walls is likely to become a formidable hem- orrhage thereafter ; and even though the secondary ooz- ing be not sufficient to imperil the life by loss of blood, it is liable to do so by causing inflammatory or septic proc- esses. The blood, other fluids, fecal matters, and all other foreign agents must be removed from the abdominal cav- ity and its contents and culs-de-sac thoroughly wiped by warm soft aseptic sponges soaked in Thiersch's fluid, a two per cent, solution of carbolic acid, or a solution of bichloride of mercury (1 to 10,000). Too great care cannot be taken in sponging away the foreign matter. As already stated, the same portion of the sponge should be applied to a serous surface but once, for to apply it repeatedly causes quite as surely the dissemination as the removal of the irritating agents. Malcolm, of London, advises flushing out the abdomi- nal cavity for the purpose of adjusting naturally the in- testinal folds. Water or antiseptic solution at the tem- perature of the body is poured into the cavity from a pitcher. The intestinal folds floated up, subside later into their normal positions. The fluid is poured in until it returns clear. That remaining in the cavity is siphoned off or sponged out thoroughly. This flushing with hot fluid also aids in cleansing the peritoneal cavity, and, besides, acts as a stimulant. The abdominal wound should be closed by two rows of sutures, a superficial and a deep. The latter should be a continuous one of strong silk, and should include the serous and subserous tissues and the transversalis fascia. The practice of making a deep row of interrupted sutures widely separated, or of including the whole thickness of the abdominal wall in one such row, is to be condemned. The pockets or dimples of peritoneum which are thereby formed between the stitches invite the occurrence of her- nia. The superficial row may be of silk or catgut, inter- rupted or continuous. If necessary, the wound may be drained. And last of all, an antiseptic dressing is to be applied. The patient should be quieted by small doses of an opiate ; the diet should be light at first and of a nature to leave little or no residue. The bladder should be evacuated with a catheter. Prognosis.-Ruptured or lacerated wounds have thus far proved more fatal than any of the other forms. Of five cases reported during the late war all were fatal. Curtis reports eight cases which were operated on, and all died. Since then several others, in which laparotomy was performed, have been reported, only one of which, that of Crofts, was successful. The prognosis in gunshot wounds of the intestines, w'hen treated by laparotomy, has of late years vastly im- proved. In 1887, Morton published a series of twenty- two cases with a little less than twenty-three per cent, of recoveries. About the same time MacCormac collected thirty cases in which laparotomy had been performed (Morton's were included), and gave the recoveries at a lit- tle over twenty-three per cent. Since then a collection of thirty-five cases shows eighteen recoveries, or a little over fifty-one per cent. Of stab wounds which were operated on, Morton repor- ted nineteen cases with sixty-three per cent, recoveries ; MacCormac eighteen cases with over fifty-five per cent, of recoveries. A collection of nineteen cases made since then gives over seventy-nine per cent, of recoveries. Joseph D. Bryant. 544 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES, (SUPPLEMENT.) Intestine Wounds. Intra-Uter. Tampon. INTRA-UTERINE TAMPON.-The present methods of treating morbid conditions of the interior of the uterus are revolutionary when compared with the methods of a generation ago. Nay, they are revolutionary when compared with the methods of some teachers who are still high in authority, and deservedly so. That which in all past ages of medical science and practice has been considered noli me tangere is now approached with per- fect unconcern, if with perfect cleanliness, and with clear foresight and expectation of beneficent results. The cases are rare indeed in which this expectation is disap- pointed if the manipulation has been attended by the req- uisite cleanliness and without undue rudeness. It must ever be remembered, now as well as in pre- antisepticdays, that the uterus is a contractile organ, that it is enormously vascular, and that it is enormously ab- sorptive, and. no one should invade the organ without due regard for this headlight. Another point of great importance which has received due recognition only in very recent times, is that morbid secretions or accumula- tions within the uterus should be drained away as thor- oughly as they would be drained from any other cavity ; that is, the principle of drainage applies to the uterus as well as to other cavities containing poisonous material, and if such drainage is not free and unobstructed the chances of mishap are very great. Many of the ills of womankind are due to the fact that uterine drainage has been ignored or misunderstood. If nature provided an outlet for decomposing material, wTell and good, but if not, nature and not man must be held accountable, to the great detriment, however, of the patient. Such rea- soning has tilled many grave-yards, and is in harmony with that other sophistry, " meddlesome midwifery is bad "-apologies, both, for the timid and the ignorant. The intelligent management of uterine drainage is one of the most valuable adaptations of modern uterine pathol- ogy, and it is the tampon more than any other means or instrument which has made such treatment efficacious. That the unimpregnated uterus is susceptible of dilata- tion is a fact which has long been known, but only in re- cent years has dilatation been practised to any great ex- tent. The use of tents composed of various materials has been advocated and practised for many years, but owing to imperfections in the materials used and want of care in the way of using them disaster has not infre- quently resulted, and the profession has come to look upon them with more or less distrust. The field of their utility was believed to be limited, and they were often used with fear and trembling, perhaps, when no other means seemed available. The inflatable rubber bag in- vented by Barnes for the facilitation of the first stage of labor was a most ingenious and valuable device, but the material was unreliable and might betray one in the hour of utmost need. The stems of glass, rubber, and metal which have been devised by Sims, Peaslee, Wylie, and others, have served, and still serve, a useful purpose in demonstrating the dilatability of the unimpregnated uterus, and the many useful ends which can be sub- served with an open uterine canal and free drainage. The powerful uterine dilators which are now in such com- mon use, and which are, for the most part, modelled after the powerful instrument of Sims, must be' mentioned in connection with the means which have been, and still are, used for the dilatation of the uterus, and for prepar- ing it for the use of the curette or the tampon., It finally remained for Vulliet to demonstrate that the uterine cavity could be greatly enlarged by the gradual use of a tampon of antiseptic cotton, and that by its aid one was enabled to treat the various diseases of the endometrium and uterine muscle with a convenience and success which had previously been unknown, or at any rate unprac- tised. Materials for the Tampon.-The object of the tam- pon is, primarily, dilatation. This may be effected by any material with which the uterine cavity can be filled. But the presence of a foreign body within the uterus ex- cites secretion ; hence two conditions are pre-requisites in the tampon material-it must be aseptic and it must be absorbent. The imbibition of the secretions of the endo- metrium by the tampon increases its volume and its di- lating power and at the same time favors the absorp- tion of poisonous material; hence the necessity of abso- lute certainty that the tampon material be aseptic, and that the tampon be not retained too long. Of all the substances with which the uterus may be tamponed, there are but two, so far as 1 know, which commend themselves for general use-absorbent cotton and gauze. Absorbent cotton imbibes the secretions of the uterus with great avidity and quickly becomes converted into a hard, firm mass, which may become painful and irritat- ing in a very short time. Nevertheless, it is readily intro- duced, can be adjusted with great compactness, and is highly approved by many writers, notably by Vulliet, whose credit it was. as already remarked, to advocate the persistent and extensive dilatation of the unimpreg- nated uterus. Preferable to absorbent cotton as a tam- pon material, at least in my opinion, is antiseptic gauze, which has all the merits of absorbent cotton and none of its objections. Introduced in narrow strips, from twelve to eighteen inches in length, it is readily adjusted, adapts itself to the shape of the uterine cavity, absorbs secretions readily, does not become hard like absorbent cotton, and is more readily removed. Either the plain sterilized gauze may be used, or gauze which has been prepared with iodo- form, carbolic, boric, or salicylic acid, and it frequently happens that it may be retained several days without acquiring the odor of decomposition. Conditions in which the Tampon is Indicated.- The gauze tampon is equally indicated for the impreg- nated and the unimpregnated uterus. The conditions may be tabulated as follows : I. The impregnated and puerperal uterus; 1. During pregnancy. 2. During parturition. 3. Post-partum either at term or prior to it. II. The unimpregnated uterus : 1. For exploratory and operative purposes. 2. For the relief of hemorrhage. 3. For endometritis. 4. For the relief of stenosis. 5. For the drainage of accumulations within the tubes. I. The Impregnated and Puerperal Uterus.- 1. During Pregnancy.-There are many conditions asso- ciated with the impregnated uterus which have hereto- fore been treated, and with fair success, by tampon of the vagina, the pressure of the tampon being the efficient agent. This method, however, is often indirect and troublesome, and will eventually be superseded by the more logical and effective tampon of the uterus. Of course there are casesin which a tampon of the vagina will be preferable, and yet others in which both uterus and vagina may be tamponed with advantage. Tampon of the uterus is indicated when an abortion is imminent or is necessitated. It is simply a substitution of means. Instead of a bougie or tent a tampon of gauze within the cervix, or within the corpus, if necessary, will bring on the desired uterine contractions and facilitate the empty- ing of the organ. On the other hand, a light tampon within the cervix, with a moderate tampon of the vagina, will in some cases avert an abortion, checking the hemorrhage and permitting the pregnancy to continue. No fixed rules for action in such cases can be given ; one must exercise his discretion according to the" situation. The wounding of the uterus, which so often occurs in induced abortion by the use of instruments of various kinds, may usually be avoided when the tampon is used. 2. During Parturition.-A slowly dilating uterus in the first stage of natural labor is often one of the most vexatious conditions, especially with primiparae, for both patient and physician. In such cases an uterine tampon is of great value. Its use requires judgment and a cer- tain degree of skill, for the soft uterine tissue may be readily torn, or undue violence may be shown to the organ in its insertion. It is best introduced with the patient in Sims's position, the uterus being steadied with a volsella, and the narrow strips of gauze pushed as high as the lower 545 Intra=Uter. Tampon. Intra-Vasc. Infusions. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. pole of the advancing foetus. As labor progresses the tam- pon will be extruded into the vagina, and it should be at once removed, as its function has been accomplished. 3. Post-partum, either at Term or Prior to It.-When Diihrssen suggested the tamponade of the uterus for post- partum hemorrhage, his proposition was received with incredulity, almost with ridicule. To tampon effectively a bleeding, viciously inert uterus is indeed an operation for which one is seldom prepared. The quantity of gauze which can be stuffed into such an organ is almost unlimited, and there is no time to send for supplies when the emergency is present. But one can always carry half-a-dozen rolls of sterilized gauze bandages, three or four inches wide, and, if this is insufficient, clean pocket- handkerchiefs, or strips from napkins or pillow-cases, are usually available for such a crisis. Of course there must be no suspicion of dirt about anything which is introduced into the uterus, and the mass must be removed at the earliest practicable moment. This operation has proved a life-saving measure in so many instances that it must now be regarded as one of the recognized expedi- ents in severe post-partum floodings. In hemorrhage after abortion the intra-uterine tampon will be found quite as effective as in the similar accident at term, and the operation in the former case may usu- ally be done with more deliberation and precision than in the latter. In cases in which there is septic matter or a suspicion of septic matter within the uterus after labor or abortion, the intra-uterine tampon will sometimes be of service. The statement is made thus cautiously because in such cases curettage and irrigation have a field which will sometimes be adjunct to the tampon and sometimes will take its place. The possibilities which the tampon has for usefulness in this class of cases are very great, and I can speak with much satisfaction and assurance of the valuable aid which it has rendered me. in my practice. The usefulness of the tampon may also be mentioned in cases in which the uterus contracts im- perfectly or irregularly after labor or abortion, a condi- tion which is commonly known as subinvolution. The tampon stimulates such uteri to contraction, relieves the turgid veins, effects good drainage, and may prevent protracted or even serious disease. II. The Tampon in the Unimpregnated Uterus.- Useful and sometimes invaluble as the tampon is during pregnancy and the morbid conditions which attend and follow it, it is equally valuable for many conditions which are unassociated with pregnancy. 1. For Exploratory and Operative Purposes.-In the presence of intra-uterine neoplasms, whether benign or malignant, dilatation is always necessary prior to opera- tion, and exploration will frequently decide what the condition is, and wThether an operation is practicable or advisable. Such dilatation may often be effected rapidly by means of the powerful steel dilator of the Sims, or a similar, pattern. But there are cases in which such vio- lent treatment may be inadvisable, and in these the de- sired effect may be obtained more gradually by means of the tampon. The field which has heretofore been occu- pied by the uterine tent is destined to be reserved for the tampon. In those cases in which the uterus is to be opened from the abdominal cavity or to be extirpated, the danger of sepsis from its interior may be entirely an- ticipated by a preliminary tampon, and in those cases in which tumors have been removed from the wall of the uterus, which have so often proved fatal because of de- ficient drainage, the value of the tampon will be ines- timable. It is a singular fact that so useful an adjunct for such operations has so long remained unappreciated. 2. For the Relief of Hemorrhage.-The indications for the tampon to relieve uterine hemorrhage are many, and doubtless some which might not be deemed valid by the majority of the profession at the present time, will be so considered in the near future. Among such indications may be mentioned profuse menstruation in the feeble and anaemic, hypertrophy and inflammatory conditions of the endometrium, malignant disease of the cervix or corpus, intra-uterine tumors of all descriptions, uterine congestion accompanying disease of the adnexa, retention (SUPPLEMENT.) of the products of conception, etc. The profuse men- struation of the feeble and anaemic, which has so long been treated by the profession with nauseating drugs, or with expectancy, that is, with a confession of helpless- ness, should no longer subject us to reproach. Does not nature sometimes shame us by plainly teaching that the rational method is to check such loss of vitality when she checks the menstrual flow in connection with some of the wasting diseases ? The wonder is that such losses can be so long tolerated by those wTho suffer them, and wrho wait in vain for the relief which is promised them-in time. Tamponade of the uterus in the un- married, especially in young girls, is an operation which a sensitive and conscientious physician naturally shrinks from, but it is immeasurably the lesser evil and should be boldly and thoroughly carried out. The necessity for the tampon in the other conditions mentioned will probably be admitted without further argument. If mistakes are occasionally made by such a procedure they will only be the exceptions proving the rule. In almost all cases it will be well to precede the tamponade by a careful curettage. With me such a procedure is a routine method, for it frequently clears up a diagnosis which may have had elements of obscurity. 3. For Endometritis.-Endometritis is not necessarily accompanied by hemorrhage. In the septic varieties, in endometritis accompanied with hypertrophy, with excess of glandular secretion, with inertia, and atony of the uterine muscle, the benefits to be derived from curet- tage, tamponade, and drainage are unquestionable and extensive. 4. For the Relief of Stenosis.-Unwilling as many are to admit the existence of evil arising from mechanical obstruction within the uterine canal, especially with ref- erence to the performance of the menstrual function, the facts are against them, the facts of induction on the one hand and the theories of deduction on the other. Those who pin their faith upon clinical experience through a series of years, in a series of careful observa- tions, may have reasonable confidence in their conclu- sions. The day of stems and tents for the relief of uterine stenosis is past, or rather a better instrument for the treatment of this condition is at hand in the tampon. Whether the stenosis is natural or the result of disease or traumatism, whether the condition to be relieved be sterility or dysmenorrhoea, the indication may usually be met by the judicious application of the tampon. 5. For the Drainage of Accumulations within the Fallo- pian Tubes.-The use of the tampon for this purpose, which has been so ably advocated by Polk, does not seem to me to have so extensive an application as he thinks. I have operated upon several cases in which the dilatation of the tubes did not extend far beyond the uterine cornua, the cornua themselves being distended and the tissue friable with infiltrated pus. The tampon undoubtedly drains such cases very well, but suppose the case is not seen sufficiently early to drain thus efficiently. Suppose, moreover, that the ovaries are seriously dis- eased, while the abdominal ostium of the tube is still pervious, as is not infrequently the case ; or suppose the tube is divided into loculi, each filled with pus, and sep- arated from each other by impervious septa, or that the tubes are dislocated and the purulent accumulations be- yond the reach of the tampon ; under such unfavorable conditions, which are far more numerous than the favor- able ones, temporizing or palliation may be dangerous. Therefore, while conceding the value of Polk's proposi tions and suggestions, the utility of the tampon seems to me here to be very limited. Methods of Using the Tampon.-Polk's broad prop- osition that the tampon should be introduced withall the precautions and all the adjuncts of any surgical proced- ure, including the administration of an anaesthetic, is, of course, susceptible of limitations. In the tamponade of the uterus for hemorrhage post partum the urgency of the situation will forbid the deliberation and attention to details of a less serious condition, and in many other cases in which the uterine canal is patulous, the tissue soft, and the patient not unduly sensitive, an anaesthetic 546 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. , Intra-Uter. Tatnpou. Intra-Vase. Infusions. will be unnecessary. I have tamponed such cases many times in office and clinic practice. For other cases the .safeguards which Polk mentions are timely and requi- site. As I have already said, the introduction of the tampon should invariably be preceded by curettage with the dull or sharp curette, as the case may require, by irri- gation, and frequently by dilatation. Roughly speak- ing, if the canal is half an inch in diameter the gauze may readily be introduced. For some conditions (which will suggest themselves as occasion arises) the lateral position of the patient will be preferable for the opera- tion ; for others the dorsal. I have sometimes been obliged to change the one for the other. The lower lip of the uterus may be steadied with a volsella while an assistant steadies the upper lip. The gauze, in strips two inches wide and twelve to eighteen long, may then be passed up the fundus with long dressing-forceps until the entire cavity is sufficiently packed. The firmness with which it is to be packed will depend upon the con- dition for which it is used. I have not been able to use Polk's cannula to advantage, nor do I like to recommend the use of the auger-pointed introducer. The latter is too dangerous for unskilled hands, and unskilled hands must frequently perform this operation. The tampon may be retained from one to seven days, according to the indication, and it may be renewed as often as neces- sary. (I have kept a myomatous uterus dilated for weeks in succession.) No special rules are necessary for its extraction ; it may readily be removed with long dress- ing-forceps. With regard to contra-indications the tam- pon may be so modified, as to quantity, firmness, and duration of retention, that I am unable to conceive of the impropriety of its use in any case in which intra- uterine treatment is admissible. Combined with the principle of drainage and the use of the curette it forms one of the most powerful and efficient means in uterine therapeutics. Andrew F. Currier. INTRA-VASCULAR AND SUBCUTANEOUS INFU- SIONS OF BLOOD AND OF SALINE SOLUTIONS. The treatment of extreme conditions of exsanguination, whether from the direct and immediate loss of a large amount of blood by sudden hemorrhage, or from the effects of rapidly exhausting disease, has long been the subject of careful study on the part of skilful practi- tioners, and of elaborate and protracted experimenta- tion by the most able and diligent observers. Such an alarming loss of blood is so terrifying, the degree of prostration is so profound, the shock to the system is so great, that few of the emergencies of professional life appeal more strongly to the sympathy of the phy- sician, or urge him to greater exertion to ward off the fatal termination which must speedily occur if aid to the sufferer cannot be promptly rendered and efficiently applied. In the greater number of accidents and in- juries followed by hemorrhage, it is possible to con- trol the loss of blood by the adjustment of a tourni- quet, by occlusion of the lacerated vessels by means of a ligature, by compression of the bleeding vessel by direct force applied over the seat of the injury, or by acupress- ure or other appropriate means. These means are not, however, applicable to many cases of bleeding, such as post partum hemorrhage, secondary hemorrhage after amputation, and the accidental hemorrhages attending certain of the febrile diseases to which the human organ- ism is susceptible-e.g., typhoid-or the purpuric con- dition, or in cases of hemorrhagic diathesis, or in certain organic affections of the internal organs, such as ulcer of the stomach, cancer of the alimentary tract, occasion- ally tuberculous ulcerations of the intestinal wall, and other analogous conditions, which at times present them- selves. From the nature of the case, all patients with sudden and alarming hemorrhage must be considered as cases of the gravest emergency, and any treatment applied for the relief of the patient must possess certain special ad- vantages, chief among which must be its universal and easy procurement and simple preparation ; and in addition to these it must be harmless in its relations to the tissues (SUPPLEMENT.) or organs with which it may come in contact during its presence in, or action upon, the system. F. P. Henry and Alfred Stengel publish in Sajous's Annual (1892, vol. ii., E., p. 16), a paper in which Thomp- son reports twelve cases of acute anaemia, such as those due to hemorrhage after labor, operation, etc., treated with sterilized solution of sodium chloride. Of the twelve cases, eight were treated by intra-venous injection, two by intra-venous and intra-peritoneal, and two by intra-peritoneal. Four recovered and eight died. Thomp- son regards the intra-venous the best "method, because, when the heart is weak, solutions injected subcutane- ously may not be absorbed, and because the action is more prompt. His experience would lead him to con- demn the intra-peritoneal injections. Injections of saline fluids prolong life, but must be followed by injections of detibrinated blood. The sugary solution of Landerer lias no special merit. Holmes, from studies of injections in acute anaemia, draws the following conclusions : 1, Auto- transfusion should be done first; 2, then infusion of large quantities of saline solution ; 3, immediate intra-vascular injection of salt solution should not be practised ; 4, secondary intra-peritoneal or subcutaneous injection of blood, when there is dangerous anaemia, is a conjectural matter, but should not be practised until reaction occurs ; 5, immediate subcutaneous injection of blood is proble- matical ; and, 6, the rotary surgical pump is the best apparatus. Several of these conclusions are now an- tiquated. Marshall experimented with rabbits to study the effect of injections of mixtures of defibrinated blood and sodium chloride, and found, after a week, restoration of the num- ber of corpuscles, and after three weeks, of the haemo- globin. Stable obtained good results from Landerer's sugar solution, as did Weber and Frank with simple salt solution. Weldon thinks that blood-transfusion has fallen into undeserved neglect, because dissimilar bloods were employed, and therefore untoward results obtained. Castellino speaks favorably of injections of 14 to 16 fluid ounces (420 to 480 grammes) of a three-quarters of one per cent, solution of soda. Lapine advocates the in- troduction of goat's serum directly into the veins. He uses about 50 c.c. (If ounce), and has found no evil con- sequences, though such might be feared theoretically. He suggests that possibly the introduction of the serum of non-tubercular animals may prove useful in the treat- ment of tuberculosis. It is noticeable that in this some- what extended review, no suggestion is offered as to the temperature of the solution or of the blood which is to be injected into the vascular system of the patient. In the earlier attempts to replace the blood lost by the sys- tem, it was supposed that the blood of the human organ- ism, or that of only a few animals, could be utilized for this purpose. After this operation it was found that ac- cidents of peculiar kinds were apt to occur, such as the coagulation of the injected blood in the vessels, this often inducing embolism, or thrombosis. Defibrination of the blood was then substituted for immediate transfusion, in which the blood was whipped with straw's, and the fibrin thus collected upon them was in this way removed. The remaining fluid, supposed to be normal blood, minus only the fibrin, was then injected into the vessels. A certain number of the patients survived this procedure, but the dangers from the introduction of air into the circulation, of septic infection of the blood in the processes of prep- aration or otherwise, together with the peril attaching to instruments and to hands which are not aseptic, have led most practitioners to abandon this mode of treatment of sudden and alarming hemorrhage. Among the procedures which have proved the safest and best, and which should-certainly be employed in pref- erence to the more complicated and elaborate methods, is the infusion of hot saline solutions into the vascular channels ; thus adding to the bulk of the circulating fluid, and relieving the heart from the danger of sudden and fatal collapse. We now know that as good, if not better, results are reached by injecting warm saline-alka- line water as by transfusing blood. " Aside from the ob- vious dangers-clotting, embolism, sepsis, etc.-attend- 547 I nt ra-Vascular Infusions. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. ant upon the use of any kind of blood, we now know that blood-cells other than human are broken down and disintegrated almost at once within the human body ; and in consequence, a great mass of detritus is thrown upon the organs having charge of metabolism of tissue, threaten- ing to overwhelm them with work. Even human blood- cells are probably so destroyed, though more slowly, when transferred into another body than that which gave them birth. What seems needed is only some un- irritating fluid, which can supply the lacking volume within the heart and vessels ; that is, to give to the heart a sufficient amount of some harmless current running through its chambers to excite systolic action. If this is done, and done promptly, at the right temperature, before the patient suffers too much from the shock caused by sudden and extreme anaemia, it is wonderful how large a loss of blood may be sustained ; and how rapidly, as if by magic, nature supplies multitudes of new red blood-cells to supply those which have been lost."1 The following quotation from William Hunter {British Medical Journal, August 10, 1889, p. 309), is of interest in this connection : "After the greatest loss of blood in animals a sufficient number of red corpuscles always re- mains in the circulation to carry on respiration, provided that the circulation is maintained. In animals, after the loss of half to two-thirds of the total quantity of blood in the body, the number of corpuscles per cubic millimetre may be found as high as 3,000,000 or 4,000,000. The absolute loss is great, but the relative loss is slight, and is of little importance. The animal's health is in no way injuriously affected by the loss. ... In man, a loss of blood can never be so great as in animals ; syncope occurs earlier. Transfusion of blood is, therefore, never required for the purpose of supplying red corpuscles to carry on respiration after sudden loss of blood, in a pa- tient previously healthy. The immediate source of the danger in such cases is not the want of red corpuscles, but the disturbance of the relations between the vascular circulation and its contents. . . . It is remarkable how slight the disturbance may be in cases, for exam- ple, of pernicious anaemia, in which the red corpuscles may be reduced to the extent of ten percent., or even less, of their original number. I have observed cases in which the number of corpuscles was as low as 500,- 000 or 600,000 per cubic millimetre, instead of 5,000,000 as in health ; the respirations never rising above 20 per minute, and the breathing, during quietude, being per- fectly natural." In cases in which the loss of blood is not immediate, as in conditions of great prostration from exhausting dis- ease, or in pernicious anaemia and kindred diseases, the introduction of saline solutions into the connective tissue of the body, whence it is rapidly and easily absorbed into the systemic circulation, has been followed by most gratifying results. It would seem that the presence of a large amount of circulating fluid within the vascular channels, must exercise a stimulating influence upon the cardiac muscle, and possibly upon the tissues at large, with the result of invigorating the entire body. This ap- plication of hot saline solution has not, however, had the extensive use which has attended the intra-vascular injec- tion of saline liquids, at bodily temperature, and its beneficent effects are not so well known. Of course, if one had abundant time in which to pre- pare it, the best saline-alkaline fluid would be one iden- tical in its components and their proportionate quanti- ties with blood-serum. Most surgical text-books give a formula more or less approaching this. Of late it has been recommended by Ludwig, of Leipzig, to add to our saline-alkaline water a little sugar; this being a natural ingredient of the blood. Simplest of all, and so far as we can see, practically about as good as the most complicated of these formulae, is simple warm water plus a little table-salt. It has the great advantage, too, of being always at hand when wanted. The best proportion of salt is six parts in one thousand -parts of water, or about the density of blood-serum. This would be, roughly estimated, a heaped teaspoonful in a quart of w'ann water. The water should be first boiled, for asep- (SUPPLEMENT.) tic reasons. We must never forget the salt. Such an omission would be fatal. Pure water, devoid of sodium chloride, when injected in any considerable amount, will at once dissolve out of the blood-cells their haemoglobin, and thus promptly kill the patient. Dr. F. C. Shattuck, in " Hare's Therapeutics," Vol. I., p. 780, has recently contributed to our latest knowledge in relation to transfusion and infusion, an article which is so carefully weighed in its estimate of the worth of these procedures, and so fair in its judgment, that I take the liberty to transcribe a portion of it in this connection. He says, " It is estimated that a person can stand a single blood-loss of at least one-third of its total volume with- out a directly fatal result; perhaps with a surprisingly rapid recovery. " If the patient does not show signs of rallying from the collapse following hemorrhage, the question naturally arises of artificially supplying, to a greater or less degree, the loss sustained. " A simple and ready means of stimulating the circula- tion is the application of heat, internally by a rectal in- jection of a quart of warm saline solution ; externally, by hot bottles; some form of alcohol being given by the mouth if the patient can swallow'. Or a sterilized solu- tion of common salt, of 0.06 per cent., or 0.07 per cent., can be thrown into a vein, into the subcutaneous tissue, or into the peritoneum. It has been, and is still main- tained by some, that such a saline solution is just as potent to save life as is the transfusion of pure or defibrinated blood, while it is free from some of the dangers incident to the last procedure. There are numerous cases re- corded in which the saline solution seemed certainly to save life, though it is possible to assert in these that re- covery would have ensued without its use. The last word has probably not been said as yet on this question. For intra-venous injection of defibrinated blood, or of a 0.05 per cent, or 0.06 per cent, solution of salt, all the apparatus required consists of a glass funnel, some rubber tubing, and a cannula ; the rapidity of the flow being re- gulated by raising or lowering the funnel. According to Mayette, if the median basilic vein be selected for in- fusion, the amount should be about a fluid ounce per minute, though not much harm is likely to arise if ten ounces be injected in six minutes. This should generally be the maximum, except in cases of extreme urgency, in which the relative emptiness of the vessels is the chief source of danger. The same simple apparatus is also sufficient for the subcutaneous infusion of salt solution, from 500 c.c. to 1,000 c.c. (from 17 to 83 ounces fl.) may be injected under the skin of the back or in the axil- lary region, absorption being aided by gentle massage. Should the skin become too greatly distended, a second injection may be made in some other locality. Thia method of rapidly making up a deficiency in the quantity of the circulating liquid is free from danger, can easily be done without trained assistance, and in many cases in practice has been successful." Ziemssen has largely practised another method which seems to be at least safe-namely, the substitution of de- fibrinated human blood. Its first results were not satis- factory, but after an interval of about ten years he has lately resumed his work in this line, and has now so per- fected his technique as to aVoid all undesirable effects and obtain marked benefit. Strict antiseptic precautions are observed throughout the operations of drawing and injecting the blood, which is done under the skin of the thighs. He uses a syringe containing 25 c.c., the con- tents of which are thrown slowly into the tissues, while an assistant, with hands w'ell anointed with vaseline, puts his " full strength" into the massage of the part, so that the blood is diffused widely and thus put into a favorable form for rapid absorption. From six to six- teen syringefuls are injected at a sitting, the patient being under anaesthesia, as the injection and the massage are alike painful. In attempting the operation of infusion, certain pre- cautions against septic infection should be preserved. These relate to the apparatus which is used as well as to the vessel holding the liquid itself. If the instrument be 548 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Intra-Vascular Infusions. a hypodermic needle, after the wire is withdrawn from the canal of the needle, this should be cleansed by forcibly passing several syringefuls of boiled water through it, and then holding it above the flame of a lamp or gas-jet, until the water contained within the hollow needle is transformed into steam and issues as such from the end of the needle. The needle may then be considered asep- tic. The rubber tube, if this is used, should be subjected to thorough disinfection by some efficient germicide, and may remain in the solution until wanted for use. If a common Davidson syringe is used it should be most care- fully disinfected, as this instrument is exposed to unusual dangers from septic infection. A very simple and perfectly efficient plan of disinfec- tion is to fill the syringe, and hypodermic needle, or the cannula, with boiling water, and then to immerse and boil them in water for a fewT minutes. Previous to operation, the place selected for the intro- duction of the needle should be thoroughly washed, and subsequently scrubbed with some form of antiseptic solu- tion. The hands of the operator, as well as those of his assistants, should also receive the necessary cleansing ap- propriate to a surgical operation. The solution to be injected should consist of freshly boiled water, prefera- bly distilled water, in which has been dissolved common salt (sodium chloride), in the proportion of 0.06 per cent, or 0.07 per cent., and which has then been allowed to cool to the required temperature. Most authorities as- sert this to be anywhere about 100° F. There is reason to think that a much higher temperature, as first pointed out and insisted upon by Professor Dawbarn, of New York,1 is to be preferred on account of the added stim- ulation from the elevation of the temperature of the liquid as it comes in contact with the visceral organs in which the vitality is reduced from the loss of blood, and in which there is also greater radiation from the surface and no corresponding rapid production of heat in the body. It is a noticeable fact that in cases of extensive hemorrhage there is always a feeling of chill on the part of the patient, and that the surface of the body is cov- ered with a clammy and decidedly cold sweat. The in- fusion of heat, as well as the increase of volume of fluid in the circulating organs, may therefore be considered as a distinct advantage, and is undoubtedly of positive ben- efit in cases of extreme danger.* Transfusion of blood has been urged as a remedy in the coma of diabetes mellitus by Dieulafoi,2 but the meas- ure has been found to be practically of no advantage, while the dangers and difficulties are almost of themselves sufficient reason for its abandonment, except possibly in institutions where the apparatus and necessary assistance can be readily procured. It need hardly be added here, that blood-transfusion, either mediate or immediate, has now been dropped by almost all surgeons (Dawbarn). The results so far obtained do not warrant us in believing it to be a measure that can in many instances enable us to save from death patients who have become comatose. The use of such injections has, however, in some cases, apparently been the means of cure, while in others it has been of decided benefit, although not completely success- ful. Dickinson reports a very interesting case in which he employed the method with apparent benefit. The ac- count is chiefly of interest from the fact that after the in- jection the patient regained consciousness for a time, and that during thirty-two hours, four hundred and fifty-six ounces of fluid were injected. In his opinion the best site for the operation is the prominent vein upon the instep, the tissues there being easily dissected and the vein hooked up, while its distance from the heart insures a more perfect admixture of the solution and the blood- (SUPPLEMENT.) column before they reach the heart and the medulla. The solution should be freshly prepared from boiled and filtered or distilled water, to which has been added a drachm and a half of sodium chloride and fifteen grains of sodium carbonate to each quart of fluid used. The fluid should be warmed to 100° F. and then injected slowly by means of gravity pressure, the reservoir being held at a height of three feet above the cannula. The latter should be of about one-sixteenth inch bore. Pro- fessor Dawbarn urges, upon physiological grounds, that the salt-water should be very hot, not less than 120° F., which is as hot as the hand can possibly bear. It was shown in his kymographic experiments that no harm could result from less than forty degrees hotter than this; on the contrary, the stimulant effect of the hot water on the heart, and also upon the unstriped muscu- lar tunics of the vessels in restoring their lost "tone," was almost magical. In Dickinson's cases above men- tioned, there were added to the water potassium chloride, and the sulphate and phosphate of sodium. Alkalies may also be administered by the mouth, but they are not in this way so rapidly utilized as by intra-venous injec- tion. Struempell recommends the subcutaneous injec- tion of ether or camphor, with lukewarm baths and douches. The new and simple technique which Dr. Dawbarn has applied to the operation of infusion of salt solution, " in- volves no cutting whatever, no searching for a collapsed vein, no freshened knowledge of anatomy, no tying in of a cannula, no cannula at all, in fact. All the appliances needed are such as are likely to be right at hand (it can be reasonably assumed) in nearly every instance. The instruments are, an ordinary Davidson syringe, and an ordinary hypodermic needle-large size preferred, though this is not essential. Even if the patient be pulseless at the wrist, we can almost to a certainty feel the femoral beating just below Poupart's ligament. Now, take the needle and push it directly into this artery, going slowly, until bright-red blood is seen to well up from within the needle. (As the artery here is large enough to carry a lead-pencil, the needle will not miss it, if a little care be exercised.) As soon as the arterial blood is seen in the needle, slip over its base the syringe-end, or other tube, both being filled with the hot solution, and tie a thread tightly about the syringe, securing it to the base of the needle. Now, holding the needle firmly and steadily, pump the fluid directly into the arterial current. To avoid possible pumping of air by an old or leaky syringe, make an abundance of the salt water, and keep the entire syringe, with the hand working it, beneath the surface. From the moment the determination to use the saline so- lution is reached, until the moment when the infusion is actually entering the blood-current, need not exceed five minutes. Should it be objected that this plan injures a very important artery, I would reply, that this is decid- edly a lesser evil among those which confront the patient dying from loss of the circulating fluid. Furthermore, I have several times used this plan upon the human sub- ject, saving the patient's life, and with no subsequent an- noyance regarding the femoral artery. A further advan- tage of this technique is the fact, that thereby it is difficult to make the otherwise common error of throwing in the injection-fluid too fast, suddenly overwhelming the tired heart. Until one has tried it, one hardly realizes how much the intra-vascular pressure will obstruct the inward flow through the needle, even in a patient with a badly flagging heart. There will be so much resistance that it will seem as if the needle must be plugged with a clot or some other foreign body, so slowly, in spite of vig- orous pumping, does the stream pass in ; and yet in the course of half an hour's steady work, a pint or more can be made to enter. " Whoever has noted the vigor with which unstriped muscular fibre everywhere, reacts to the use of heat (for example, the much stronger and decidedly more per- manent contraction which results from hot post-partal injections as opposed to cold ones), must believe it prob- able that such unstriped muscle, forming as it does a most important tunic of the blood-vessels, would be aided * In two cases of acute anaemia recently reported by Dr. E. Sternberg, in the New York Medical Record, the hot infusion of salt water (120° F.) as advocated by Professor Dawbarn, was followed by complete recovery ; whereas several patients treated in the same way, except that the fluid was injected at the temperature of the normal blood, died in succession. There appears to be no good reason why the injection of saline fluid should not be repeated at intervals, both for the support of the circula- tion and also for the purpose of aiding the elimination of excrementitious matter from the systemic emunctories. 549 Intra-Vasc. Infusions. Intubation. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. by hot saline infusions in regaining its lost tone. Per- haps, too, the central sympathetic centres would feel and respond to this stimulus." So far as the writer has been able to discover, the ex- tremely simple and ready method of saline infusion herein described by Dr. Dawbarn-i.e., using an ordinary hypo- dermatic needle in an artery, etc., has not heretofore been published, nor his suggestion of the value of a very high temperature in the injected fluid, instead of that normal to the body. Albert N. Blodgett. 1 Arterial Saline Infusion. Dr. Dawbarn. A report of three additional cases by the New Technique, etc.; reprint from Medical Record, Novem- ber 12, 1892. 2 See Dr. F. A. Packard's article in Hare's Therapeutics, Vol. ii., p. 1035. INTUBATION. Since the publication of Vol. IV. of the Handbook, six years ago, intubation, then in its in- fancy, has made rapid progress in public as well as in professional favor. In fact, its progress in some respects has been altogether too rapid for the good of all con- cerned, especially for that of the little sufferers from croup who are too often the innocent victims of bad in- struments and incompetent operators, the two evils that beset this procedure and for which there seems to be no remedy. Intubation is unfortunately a difficult and dangerous operation to attempt without a previous training on the cadaver, and but few of those who practise it have had such training. It is difficult solely because respiration is suspended during its performance, which requires that it must be done quickly, and to acquire the dex- terity and educated touch necessary to do it thus quickly, and at the same time gently, requires a large amount of practice. Were it possible, without endangering life, to consume half a minute in any single attempt to locate the larynx, fix the epiglottis, and pass the tube, there would be little difficulty or danger attending the opera- tion, but cutting off the small supply of air the patient is getting-when the operation is necessary-for even one-third of this time, is not always safe in bad cases. No amount of skill in the performance of other opera- tions affords the least aid to that of intubation. The most accomplished surgeon or laryngologist is therefore no more competent to do this operation without the prac- tice referred to above than the merest tyro in these arts. The laryngologist educates his sense of sight while the intubationist requires an educated touch combined with manipulative skill, a sufficient degree of which can be acquired on the cadaver to insure, in the performance of intubation, safety to the living. The following case, reported by Dr. G. Hunter Mac- kenzie (Edinburgh Medical Journal, February, 1892), is a good example of many that might be published but are not: " Case X., girl aged two years, under the care of Dr. Henry Hay, February 3, 1891. Diphtheria of pharynx and larynx. At 11.30 a.m. the pulse could not be counted and great inspiratory dyspnoea was present. Intubation was at once performed, with immediate and marked improvement to the breathing and strengthen- ing and slowing of the pulse. February 4th, the child has breathed freely all day and is apparently going on well. She had slept well during the night. Brandy is being freely administered, a moderate degree of difficulty in swallowing is present. February 5th, the child continues to do well. At 4 p.m. I considered it advisable to remove the tube, which had been forty hours in the larynx, and this I tried to do with the assistance of the child's father. The process of gagging and the insertion of the extrac- tor, along with some struggling on the part of the little patient and some difficulty in locating the blades of the extractor inside the very small tube, appeared to com- pletely exhaust the patient, and induced a condition of death-like collapse. Artificial respiration was immedi- ately resorted to and produced a partial revival only, for the child never returned to her former condition. She died a few hours afterward without a recurrence of the symptoms of obstructed respiration." (SUPPLEMENT.) apnoea from prolonged attempts to remove a tube from the larynx of a child free from dyspnoea at the time the operation was begun. How much more liable is this accident to occur either in the introduction or removal of a tube when the dyspnoea is extreme ! In unskilful hands a fatal result from this cause is not by any means rare. Yet there are many who claim that every practi- tioner should be prepared to intubate in case of emer- gency. Any immediate danger to life attending the introduc- tion or removal of a tube from the larynx, excepting cases moribund at the time, is chargeable to the oper- ator and not to the operation. Cases very difficult to in- tubate are met with not unfrequently, owing principally to the engagement of the distal extremity of the tube in one of the ventricles of the larynx or in a subglottic stenosis, but the skilful operator, knowing the cause of the obstruction, knows also how to overcome it. The most convincing proof of the popularity of in- tubation as compared with tracheotomy, is found in the large individual experiences that have been accumulated in the short space of time that has elapsed since the in- troduction of this operation. Dr. F. E. Waxham has recently reported four hundred and twenty-one cases in- tubated by himself. Dr. Dillon Brown has also passed the four hundred mark, and the author is approaching it. Over twelve hundred cases by three operators in a few years ; and many others have passed well into the second hundred. Individual experience with tracheotomy, on the con- trary, with very few exceptions, is comparatively small, Dr. Jacobi being probably the only tracheotomist in this country who can number his cases by hundreds. In a recent discussion of intubation versus trache- otomy at the New York Academy of Medicine, Dr. L. 8. Pilcher, a well-known tracheotomist of Brooklyn, re- ported sixty-six tracheotomies as the outcome of sev- enteen years of active professional life, while Dr. McNaughton, from the same city, has intubated over one hundred and forty cases in five years. This difference is not due to any greater prevalence of croup in recent years than in the past, but to the fact that the people, especially of the poorer class, among whom this dis- ease principally prevails, would not tolerate the cutting operation except in a small percentage of the cases. As far as private practice is concerned, the comparative merits of the two operations in saving life constitute therefore a subject of scientific rather than of practical interest. Diphtheritic, fibrinous, or membranous croup, with rare exceptions, is the only form of acute stenosis of the larynx in children that demands surgical interference, and this disease is so complex in its nature and is attended with so many elements of danger, independently of the laryn- geal stenosis, that no brilliant results can ever be ex- pected from any mechanical method of treatment. The principal cause of the great mortality after both intuba- tion and tracheotomy, is the extension of the disease to the bronchial tubes where surgery cannot reach it. Then come catarrhal pneumonia, systemic poisoning, nephritis, and paralysis, all of which may be combined in the same case, but any one of which alone is sufficient to produce a fatal result. For a description of the intubation instruments, with illustrationsand method of operating, see Vol. IV., page 419, of this Handbook. The only material difference in the construction of the tubes since the article referred to was wwitten, consists in making the distal extremities somewhat bulbous, in order to prevent them from engag- ing in one of the ventricles of the larynx, the usual start- ing-point of a false passage. In the article referred to, the production of a false passage by forcing a tube through one of the ventricles and into the cellular tissue of the neck underneath the skin was barely mentioned as an accident unlikely to happen, but I have since learned from various sources that it is not at all uncommon in the hands of beginners; hence this modification in the form of the instrument, which renders the penetration of the tissues almost impossible. The fatal result in this case was undoubtedly due to 550 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Intra-Vasc. Infusions, Intubation. Almost all the other accidents attributed to the opera- tion of placing a tube in the larynx are due to the same cause, viz., want of skill on the part of the operator. Pushing membrane down before the tube is far more curative than dangerous, because this membrane, if de- tached above, and if also free below the partial or com- plete cast of the trachea, is easily expelled. If the pseudo-membrane is anchored below by extension into the bronchial tubes, it is difficult to get rid of it through the natural passages, even with the aid of the short, large- calibre tubes devised for this purpose. In all the cases in which casts of the trachea with numerous bronchial branches attached have thus been gotten rid of, death has resulted from reproduction or still further extension of the disease, and the same result would follow its re- moval by means of secondary tracheotomy. A gradual obstruction of the tube may occur from the scanty tenacious secretions that usually accompany a high temperature, especially if associated with occlusion of the nostrils and mouth-breathing, which can be pre- vented by keeping the inspired air moist by means of sprays, steam, or the frequent administration of mild alka- line solutions, such as Vichy, lime-water, etc., some of which (the patient being in the upright position) will then enter the tube. The only danger worthy of serious consideration while a tube remains in the larynx, and one which cannot al- ways be guarded against, arises from loose membrane in the lower portion of the trachea which closes like a valve around the distal extremity of the tube and obstructs expiration almost exclusively. The only absolute safe- guard against this accident is to remove the tube and at- tach a thread to it whenever loose membrane is detected at the point indicated, which can always be done if the child be induced to cough. It is, in fact, the best plan, for those who have had but little experience wdth the operation, to have the string attached in all cases in which it is pos- sible, as the removal of the tube is more difficult than its introduction. The method of feeding adopted by Casselberry, of Chicago, has practically done away with the two greatest objections urged against intubation, viz., the difficulty of nourishing patients with a tube in the larynx and the possible danger of pulmonary complications from the aspiration of portions of solid or liquid food swallowed. It consists in placing the patient's head considerably be- low the horizontal while being fed, so that anything that enters the tube during deglutition will escape by force of gravity alone. In the upright position this can only be accomplished by the act of coughing. In young children the best position is lying on the back across the lap with the head hanging so well down that it is necessary, when the child is fed from a spoon, to reach the mouth over the nose instead of over the chin. The bottle can be given in the same manner, and when wet-nursed the child can be given the necessary inclination of body by passing its legs over the opposite shoulder of the nurse. Older children may be permitted to assume any position they wish, provided the head and neck be considerably below the level of the body. Patience and perseverance are necessary to induce some children to adopt this unnatural position in the beginning, but they soon learn that they can swallow so much better than when they are sitting up or even lying flat, that they readily assume it. Intubation in the Treatment of Chronic Steno- sis of the Larynx.-The value of intubation in the treatment of chronic stenosis of the larynx, as well as in the acute forms, is now generally recognized, and is prac- tised in many parts of Europe as well as in this country. Dr. C. H. Knight, of New York (Boston Medical and Surgical Journal, July 7, 1892), reports the case of a boy, aged ten years, in whom intubation was resorted to for the relief of urgent dyspnoea due to what was supposed to be a subglottic neoplasm or a tubercular thickening of the mucous membrane, although no disease of the lungs could be discovered. The tube was worn intermittingly for about three months, and with comfort, when it was decided to do thyrotomy for the removal of the growth. (SUPPLEMENT.) Death from general tuberculosis rapidly followed the operation. Dr. Knight comments on the slight amount of disturbance excited by the tube in the larynx and the absence of objection to its long retention. Drs. Pitts and Brook, of the Great Ormond Street Hos- pital, London(" Trans. London Medical Society," Decem- ber 1, 1890), report four cases of chronic stenosis of the larynx in children in whom intubation was resorted to for the purpose of getting rid of retained tracheal cannulas, one of which had been retained three and another five years. They were all originally cases of croup for which tracheotomy was performed, and were all practically cured, the cannulas having been dispensed with, but at the time the report was made two cases required occasional dilatation by means of an intubation tube. In one of my own cases of cicatricial stenosis in an adult, of syphilitic origin, after thorough dilatation of the stricture occasional intubation had to be practised for three years before the tendency to recontraction was finally overcome. If we take into consideration the limited amount of ex- perience with intubation which these gentlemen must have had at the time when the treatment of the above cases was begun, it must be admitted that it was admir- ably managed, very few mistakes having been made. The necessary precaution of keeping the external wound open until sufficient breathing-room in the larynx was obtained to sustain life in case the tube should be expelled, was adopted in each case. This was accomplished by means of a hard-rubber plug attached to a collar similar to that on the tracheal cannula. In one case, aged three years, the largest intubation- tube for children, or that suitable for a child of twelve or thirteen years, was used without injury, which was due to the fact that the cricoid cartilage had been di- vided not long before the intubation was practised, thus permitting this naturally narrow and unyielding portion of the larynx to expand and accommodate itself to the very large tube. While it is true that larger tubes can be used with safety in chronic stenosis of a non-cica- tricial nature than in croup, the increase should not ex- tend beyond two sizes. When a very small tube has to be used, as is often necessary to begin with, the upper end of the instrument should be increased in size to suit the age, and when the size proper for the age is expelled the dilated lower end alone should be made larger rather than the whole of the tube. There is no necessity for haste in the treatment of this class of cases,-because the difficulty of swallowing met with in the beginning, the same as in croup, is soon overcome, and all kinds of food can be taken with ease. The gentle, long-continued pressure of a tube suitable to the age is much safer than forcing in a large one which may endanger the integrity of the cricoid cartilage. In a boy of eight years, in whom I used a tube several sizes too large, in order to hasten the process of dilatation, there developed a cricoid perichondritis with abscess which opened externally. This promptly disappeared when a smaller tube was substituted. Sloughing of the subglottic mucous membrane and necrosis of the cricoid cartilage would undoubtedly have followed had the large tube been allowed to remain long in position. It is important to remember that it is that portion of the larynx which is bounded by the cricoid cartilage and not the chink of the glottis that determines the size of the intubation-tubes, and that it is the high operation in- volving this portion of the larynx that is the cause of retained tracheal cannulas in the great majority of cases. The difficulty of getting rid of a retained tracheal can- nula usually bears a direct proportion to the length of time during which it has been retained. Anchylosis of the crico-arytenoid articulations and atrophy of the muscles that move them, together with general shrinkage of the larynx, are the inevitable result of long-continued disuse. In the normal condition these little joints never rest, and were never designed to do so, but continue their motion with every inspiratory expan- sion and expiratory relaxation of the glottis, day and night, during sleeping and waking. Enforced rest in 551 Intubation. Iodine. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. consequence of allowing the air to enter through an arti- ficial opening is, therefore, more disastrous to these ar- ticulations than it would be for the same length of time to any other joint in the body. Dr. E. Schniecgelow, of Copenhagen, practised intu- bation in eight cases of chronic stenosis of the larynx, six of which were for retained tracheal cannulas. One of the remaining two cases was that of a man, aged twenty-four years, who as a child had contracted cica- tricial stenosis of the trachea following tracheotomy ; the other was one of aphonia spastica. One of the cases was lost because the external wound was allowed to close before there was sufficient breathing-room in the larynx to sustain life without the tube, and another on account of plugging of the tube by tenacious, muco-purulent secretions, the case being complicated with a purulent tracheo-bronchitis. With ordinary precautions there should never be any danger, at least in adults, of an intubation-tube becoming obstructed from secretions, because a few vigorous coughs will expel any accumulation as long as air enough can be obtained to make this act effective, and patients should be so instructed. The use of steam or sprays aids materi- ally in keeping the tube clear by rendering the secretions less viscid. In adults the external wound can be kept open in many cases by wearing a small tracheal cannula with the intu- bation-tube, as was done in one of my own cases, both tubes having been kept in position at the same time for several weeks, the outer one being corked. When the wound involves the subglottic portion of the larynx there is not room for both. Dr. V. Nicolai (Bolletino della Paliambulanza di Mi- lano) reports five intubations in adults, in four of which it was employed for the purpose of relieving dyspnoea due to laryngeal tuberculosis, which result was accom- plished. In the other case the dyspnoea was the result of an intense inflammation following the removal of a foreign body which had been long impacted in the larynx. This case proved fatal from perichondritis with suppuration and burrowing of pus as far down as the bifurcation, followed by hemorrhage, the exact source of which could not be determined. The perichondritis may have been the result of injury done to the larynx in the removal of the foreign body or of pressure from the use of too large an intubation-tube. In chronic stenosis the same tube, if metallic, should not be allowed to remain in the larynx longer than about two weeks, on account of the irritation produced by the calcareous deposits that always take place to a greater or lesser extent on its surface. Such deposits do not occur on vulcanite tubes, which can therefore be allowed to re- main for a much longer time. In croup the tube be- comes coated more rapidly, and for this, as well as for other reasons, it should not be allowed to remain in posi- tion longer than a week at a time. Joseph O'Dioyer. INTUSSUSCEPTION.-During the last few years some advances have been made in the treatment of intussus- ception by operation, and the mortality of laparotomy performed for that variety of intestinal obstruction has diminished considerably. The mortality in the article in the main work was calculated from seventy cases col- lected from the literature of 1873 to 1887 inclusive, and reached seventy-six per cent. In a paper published in 1891, the writer was able to analyze a total of one hundred and five cases, and found a mortality of only seventy per cent.-a very encourag- ing improvement. (Medical Record, 1891, xl., p. 534.) The corrected table would then read as follows : (see at top of next column)- Out of sixty-five cases in which the intussusception could be reduced, only thirty-eight died, a mortality of fifty-eight per cent. Among the children of this group, the mortality was sixty-six; among the adults, only forty-seven per cent. Of seventeen cases in which the affected bowel was resected and sutured, only two recov- ered, both adults. Of sixteen cases in which an artificial anus was made (with or without reduction or resection (SUPPLEMENT.) Chil- dren. Adults. Age un- known. Total. | Mortality. (Per cent.) Recovered. Died. Recovered. Died. Recovered. Died. | " | _ m,: 53 | Recovered. Died. T. Intussusception reduced 15 29 5 7 6 1 48 10 2 1 1 14 9 2 8 1 6 26 2 2 - 88 15 7 - 74 58 100 88 88 88 70 II. Intussusception not reduced : A. Nothing done B. Resection and suture C. Artificial anus made: 1. After resection or reduc- tion 2. Without resection or re- duction Total 15 Results of Laparotomy for Acute Intussusception. of the intussusception) two cases recovered, also both adults. These figures show again that prolonged opera- tions are almost invariably fatal, and furnish another argument etgainst delay, which is the usual cause of the conditions that render operations difficult, besides being directly responsible for the fact that the majority of the patients are in very bad condition when operation is finally resorted to. In the technique of treating the bowel when laparotomy has been performed, no new suggestions have been made for those cases in which the intussusception is reducible, unless it be Senn's suggestion (Canadian Practitioner, August, 1891) to prevent recurrence of the invagination by making a fold or plait in the mesentery, parallel with the long axis of the bowel, and securing it with a few sutures. The efficiency of this manoeuvre can, in the nature of things, only be verified by its successful use in many cases, but that the danger is real and serious is shown by the very considerable number of cases in which relapses have occurred, even directly after reduction, whether by injections or by operation. Thus Gould (Medical Press and Circular, 1891, ii., p. 385) reports a case in which he operated successfully upon a patient upon whom Hulke had also operated three months pre- viously ; and Pick (Lancet, 1891, i., p. 1312) had a recur- rence necessitating reopening the wound thirty-six hours after the first operation, the patient dying of shock finally. The method of dealing with doubtful and even half- sloughing gut demands a few words. Recent experience has shown that the isolation method suggested by Hahn for intestinal resection and suture, consisting in wrapping the sutured portion in iodoform gauze and allowing it to lie just within the abdominal wound, or even entirely outside of the wound on the wall of the abdomen, can be applied to such cases. If perforation should occur, the escaping contents would be taken up by the gauze and conducted outward, and the peritoneal cavity would not be infected. In a case reported by the writer (toe. cit.) in which reduction was accomplished with difficulty and the condition of the bowel was doubtful, the suspected loop was wrapped in iodoform gauze, the ends of which were brought out of the abdominal wound, and the latter packed with the same, its lips being prevented from gap- ing by being drawn against the packing with temporary sutures of silver wire or coarse silk. The patient was al- most moribund when the operation was performed, and died of shock, but the bowels moved before death, show- ing that this method can be employed in such cases with- out producing obstruction at the point where the gauze is packed around the bowel. If it is feared that the loop might be displaced by peristalsis, a strip of gauze can be passed around it, penetrating the mesentery at a point free from blood-vessels. If the intussusception be irreducible, Senn (loc. cit.) strongly recommends anastomosis, when there is no gan- grene of the sheath, if the invagination be small. If the intussusception, on the other hand, be large, he advises a preliminary resection of the intussusceptum through a 552 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Intubation* Iodine. longitudinal incision in the sheath, after having secured the neck with a rubber ligature, the anastomosis being made subsequently. In either case the obstruction in the bowel is left unrelieved, but a passage is made around it for the circulation of the contents. Barker (Lancet, 1892, i., p. 79) appears to deserve the credit for the suggestion to remove the intussusceptum through a longitudinal in- cision in the sheath, but he advised it as a part of a form of circular suture, Lembert sutures being introduced around the neck before opening the sheath, and the two coats of the intussusceptum being sewed together by a few stitches through all the coats after the resection. Maunsell has lately ("Transactions of the Intercolonial Medical Congress of Australasia," 1889, p. 236) advocated a similar proceeding for all cases of intestinal resection, first making an artificial invagination of the portion to be removed. The danger of these methods lies in the liability to continued invagination, fresh portions of the gut becoming involved, and also in the possible occur- rence of stricture at the point of resection. Barker lost both of the cases upon which he operated, but through no fault in the method, and states that two others oper- ated upon according to a similar method gave no sign of stricture several months, and five years later. Kammerer {Medical Record, 1890, xxxvii., p. 113) re- ports a successful laparotomy for intussusception in an infant only six months old, which together with Sands's case {N. i. Medical Journal, 1877, xxv., p. 561) shows that extreme youth is no barrier to successful operation for this condition. Korte {Berlin, klin. Wochenschrift, 1892, p. 652) found an ascending intussusception in a pa- tient upon whom he operated successfully-a variety which some suppose never to occur in the clinical form, although some cases of chronic intussusception have been reported in which this variety was found after death. Prolapsed intussusceptions have been frequently extir- pated by drawing them out of the anus until the upper limit could be reached, and sewing the layers together circularly before the intussusceptum was cut away. Until recently the sutures were passed through all the coats of the bowel at once, the surgeon inserting one fin- ger into the lumen of the intussusceptum until normal bowel was reached above, and assuring himself by press- ure between that finger and another outside, that there was no loop of bowel or other abdominal organ between the peritoneal surfaces of the intussusception, and then introducing a curved needle from without into the lumen of the intussusceptum under the guidance of the finger, and then out again, so as to make a stitch which took up a small portion of both layers of the intussusceptum. This was tied on the outside, and when the entire bowel had thus been surrounded with sutures above the neck of the intussusceptum, the latter was cut away just be- low the line of stitches. But a loop of bowel has occa- sionally been wounded in operating by this rather blind method, and, moreover, sutures thus introduced through all the coats of the bowel may be the cause of infection, leading it from the mucous membrane through the wTall of the gut into the peritoneal cavity. The latter danger has compelled the rejection of all methods of intestinal suture which depend upon such stitches, and although it is true that if the sphincter were paralyzed by stretching, or were divided, there would not be quite the same dan- ger in the rectum as elsewhere in the intestinal tract, be- cause the intra-intestinal pressure could be reduced to a minimum, yet there would certainly be some danger, and most modern surgeons would prefer the method suggested by Mikulicz (Wiener medizin. Presse, 1883, Nos. 50 and 51). In this procedure the intussuceptum is drawn down until its upper limit is reached, and then a superficial incision is made on its anterior surface, and gradually deepened until the peritoneal cavity is opened, the vessels being tied as they are divided. A row of fine silk sutures is then inserted through the peritoneal coats only, like Lembert sutures, securing the peritoneal sur- faces of the two layers of the intussusceptum together. The posterior half is next treated in the same way, and then the intussusceptum is removed by dividing the inter- nal layer step by step, securing its cut edge to that of the (SUPPLEMENT.) outer (" middle") layer by sutures, taking up all but the peritoneal coat, as the incision is carried around the tumor. In this manner the peritoneal cavity is shut off before the bowel above the point of obstruction is opened, and this is a great advantage, for even if there is no fecal accumulation, it is impossible to cleanse this part before- hand. The danger of penetrating sutures, moreover, is avoided, and it is impossible to overlook any loops of bowel which may lie prolapsed between the coats of the intussusceptum. In case of emergency it might be well to remember the excellent expedient employed in three successful cases by Weinlechner and by Hofmokl, quoted by Mi- kulicz. They passed a stiff tube into the intussusceptum and ligated it at its neck upon the tube with a rubber ligature, allowing the ligated mass to slough off, by which time the adhesions were complete. This would answer very well where it was impossible to command the assist- ance and skill necessary for the operation of excision and suture, although the danger of sepsis from the sloughing process should limit the use of the method to such cases. B. Farquhar Curtis. IODANTIFEBRIN. This is prepared from acetanilide by substituting iodine for one hydrogen atom. Its for- mula is CelLINHCaHaO. It was prepared by Dr. Os- termayer, who also introduced iodantipyrin. It is a white crystalline powder insoluble in cold, but soluble in hot water and alcohol. The experiments of Dr. Oster- mayer showed that it was devoid of any therapeutic action. No effects were observed that could be attrib- uted either to the acetanilide or to the iodine, nor could either be detected in the urine after its administration. It appears that the iodine destroys the activity of the compound and that no absorption takes place. Beaumont Small. IODANTIPYRIN ; IODOPYRIN. This compound, in- troduced in 1891 by Dr. Ostermayer, is antipyrin in which one hydrogen atom has been replaced by iodine. Its formula is CnHnlNO. It forms in colorless, shin- ing, prismatic needles, not very soluble in cold water or alcohol, but readily soluble in either when hot. lodopyrin was supposed to be a soluble combination of the therapeutic properties of antipyrin and iodine, but experience has shown that in the stomach it is decom- posed by the hydrochloric acid, and forms antipyrin and iodide of sodium. The same object may be ob- tained by administering iodide of potassium and anti- pyrin. Its antipyretic effects are those of antipyrin. In typhoid fever, pulmonary phthisis, rheumatic fever, and other febrile conditions, it lowers the temperature rapidly, and lowers the pulse and respiration ; at times it produces a free perspiration. The dose is from seven and a half to twenty-two grains. The value of the iodine is uncertain, as no decided benefit has been traced to it. One case of a persistent headache, thought to be syphi- litic in character, is reported, in which a cure was effected in twenty-four hours. The iodine may be detected in the urine after fifteen to twenty-two grains have been given. Beaumont Small. IODINE TRICHLORIDE. A compound introduced by Langenbuch, of iodine and chlorine, made by pass- ing chlorine gas over iodine. It forms a reddish crys- talline powder, hygroscopic, very soluble in water, al- cohol, and glycerine, and has a pungent and disagree- able odor. It is a stable compound, and will keep for a long time in powder or in solution ; it must be dissolved in distilled water, as any organic matter decomposes it at once. When brought in contact with the pus and secre- tions of the tissues, it is at once decomposed and its con- stituents eliminated. It is a powerful antiseptic and bacteriacide ; a one per cent, solution sterilizes cultures of the ordinary pus-producers-staphylococcus and strep- tococcus. Belfield (Medical Record, vol. xiii., No. 3) has used it extensively in surgical practice. He considers that it combines the valuable properties of iodoform and hydro- 553 Iodine, lodoplienin. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. gen peroxide. It is a more active antiseptic than iodo- form, and is more stable than the peroxide, remains longer in contact with the parts, and sterilizes all moist animal tissues as well as pus. Its disadvantages are its caustic properties when used in strong solutions, and its inju- rious action on instruments and clothing. It must be kept from the light and air. It has been used in various tu- bercular diseases and all forms of suppuration, and in all it proved of decided value. Internally the dose is one-fifth grain ; it is also used by hypodermic injections of one- tenth to one-half per cent, solution, and the same solu- tion is used for washing out the bladder, the urethra, and other sensitive mucous membranes. For irrigating wounds, a one to five percent, solution, either alone or with glycerine, may be employed ; for putrid surfaces, a five to twenty per cent, solution in equal parts of water, glycerine, and alcohol. Gauze may also be prepared by medicating with the solution. In eye affections, a one to five thousand solution is used as an ordinary anti- septic wash. Beaumont Small. IODOFORM. This drug has recently acquired a rep- utation as an antitubercular agent, and has been exten- sively employed in the treatment of the various forms of tuberculosis. In chronic abscesses, disease of bones, of joints, and of the tissues about the joint, and in all forms of tubercular disease subject to the surgeon's knife, iodoform may be applied to the affected part with as much confidence in its specific and curative action as has always been placed in it in the treatment of wounds of a simple character. It is well known to be antagonis- tic to the growth and extension of tubercle. It checks the growth of the bacilli and counteracts the ptomaines and other products of their growth, and evidence is now showing that it exerts a decided destructive action on the bacilli themselves. It was shown some years ago by Sanger and Braus 1 that the bacilli of tuberculosis and anthrax were both influenced by the presence of iodo- form, becoming lessened in number and weakened in virulence and infective power. Others have confirmed these facts, and among the more recent reports are the ex- periments of Drs. G. Troje and F. Tangl.1 They report the result of their investigations upon the effects of iodo- form, in the form of vapor, powder, and emulsion, upon cultures of the tubercle bacilli. It was found that the vapor killed the organisms after fifty days. After it had acted six days the growth was decidedly diminished, and, at the end of six weeks, had ceased. The powder, when strewn on the bacilli, rapidly checked their growth, and the culture when mixed with the powder, in the propor- tion of one part to fifteen, was rendered innocuous in eight days. A ten per cent, mixture of iodoform with oil or glycerine, was found to have greater destrucive properties than either the vapor or the powder. The oil proved somewhat stronger than the glycerine mixture. During their experiments they found that the influence of the emulsion was less when a mixture of the oil and cult- ure was injected in the tissues than when they remained outside the body. The tissues proved a suitable soil for the growth of the bacilli, and they acquired a new energy. It was also found that the bacilli, when acted upon by the iodoform, could be so weakened that only chronic forms of abscess followed their inoculation. In the cold abscess arising from bone disease and other chronic forms of suppuration, the bacilli are few in number and less active, and more readily acted upon by iodoform than the cultures outside the body, or when freshly inocu- lated. The conclusions they reached, as a result of their experiments, were : that iodoform is a true disinfecting agent, and that it has a direct poisonous action on the bacilli, if left sufficiently long in contact. In addition to the action on the bacillus, iodoform also exerts a stimulating action on the diseased tissue, and promotes an active granulating surface inclined to re- pair. It has been shown2 that the walls of a tubercular abscess consist of four layers: (1) a layer of thick po- rous tissue ; (2) a layer of spindle cells in active prolifera- tion ; (3) actual tuberculous granulations ; (4) necrotic and degenerated tissue. The two inner layers contain the (SUPPLEMENT.) bacilli, and these, under the action of the iodoform, dis- appear, and healthy granulations spring from the spindle- cell layer. Whatever may be the influence of iodoform, clinical evidence is very clear regarding its decided curative action. In a report of two hundred and fifty-five cases over forty per cent, were decidedly improved. Other authorities claim that eighty per cent, of all abscesses may be made to disappear by this treatment, and in our own journals the numerous reports of cases in which a cure has been effected indicate the value of the drug. To obtain the benefits of this method of treatment the remedy must be brought in direct contact with the dis- ease. As generally followed, the abscess is evacuated and washed with an antiseptic solution of carbolic acid or boracic acid, and a ten per cent, solution of iodoform is then to be injected. The amount to be used varies great- ly, from one or two drachms up to one and even two ounces having been recommended by various authorities. Bryant2 advises the use of two or three ounces ; Curtis 3 and Darling4 find the most satisfaction by using from one to two drachms. The injections are repeated in ac- cordance with the recurrence of the pus and subsidence of the effects of the former injection, the time varying from a few days to two or three weeks. In contrast with this mild treatment are the heroic methods of the European surgeons. Professor Billroth5 has adopted this- method of treatment since 1881, and the results have exceeded his expectations. His method is to open the abscess with a free incision, and when its contents have been evacuated the walls are rubbed with iodoform gauze, the cavity washed with sublimate solution, and then stuffed with iodoform gauze until all bleeding ceases. Before opening the abscess he uses an Esmarch bandage, which is removed after the cavity is emptied. When the bleeding has been checked the gauze is re- moved, the emulsion poured in, and the wound stitched. If diseased bone is present it is scraped and cleansed also. In most of the cases the operation was followed by fever, varying in degree. In the most favorable cases there is very slight fever or pain, no tension, and healing by first intention ; the dressings are allowed to remain for two* weeks, the stitches are then removed and dressed again for another two weeks, when a cure is complete. Gen- erally there is sharp fever and pain, and serum escapes through the incision. In these cases the dressings are- removed every few days and drainage-tubes used until serum ceases to be discharged. If recovery does not take place in five or six weeks, the operation of opening the wound and cleansing the cavity is repeated. Profes- sor Jassinski6 reports the result of eighty-six cases treated by aspirating and injecting with the emulsion. The re- sults were much the same. A number healed without further interference, and others had to be opened and treated by washing and pouring in the emulsion. Fever and pain generally followed, but in no case was there- any toxic action produced, although as much as one- hundred and eighty grammes were injected. In tuberculous disease in which suppuration has not taken place, the emulsion (from ten to twenty minims) is- injected into the diseased tissue and made to diffuse itself by gentle massage. In enlarged glands the same treat- ment is adopted, and also in tubercular disease of the testes, bladder, and rectum, and in tubercular empyema. The iodoform is prepared for use by dissolving in alco- hol, or ether, or by forming an emulsion with oil or glyc- erine. The formula of the emulsion used by Mosetig- Moorhof, who first used iodoform for this purpose, was : iodoform, 10 parts ; ol. ricini, ol. amygdalae, aa 15 parts. This has passed through various modifications, until at present a ten per cent, mixture is very generally adopted, and oil or glycerine is the menstruum selected. The alcoholic or ethereal solutions are not so frequently em- ployed, on account of the pain and irritation that follow their use. They are, however, more diffusible, and cor- respondingly more active. The more concentrated solu- tions, particularly the ethereal, are very unstable, iodine being set free and coloring the solution. The prepara- tions should be recent, and the oil employed should be 554 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Iodine, lodoplienin. sterilized. This may readily be done by boiling for half an hour. Camphor increases the solubility of iodoform, and a six per cent, solution may be obtained by using a saturated solution of camphorated oil. The use of oil heated to 100° F. will allow of more iodoform being dis- solved. and this is now recommended as a more efficient way of securing a suitable solution. There is very little danger of toxic symptoms, espe- cially if the emulsions are used. Whenever any constitu- tional disturbance has occurred it has generally been in cases where the ethereal or alcoholic solution was used. No definite quantity that may be injected with safety has been determined. In some instances a few grains have caused much trouble, and in others very large amounts have been used with perfect safety. When the system is affected there is a sense of lassitude and sickness, a bad taste in the mouth, accompanied by headache, restless- ness and delirium, and fever in some cases, and in others by drowsiness and collapse. Bromide of potas- sium is said to act as an antidote, not only as a neutral potash salt, but also by its specific bromide action. This is thought to arise from its solvent properties for iodo- form. The presence of iodine in the saliva may be de- tected by placing in the mouth a piece of silver, when a garlic taste is immediately developed. The saliva may also be tested by mixing it with calomel. If iodine be present a canary-yellow color is produced, due to the for- mation of iodide of mercury. Iodoform has been employed in the treatment of tuberculosis of the respiratory organs, but not with so much success as in the forms of tuberculosis in which it may be applied directly to the part. Its administration by the mouth was found to be very uncertain in its action, and to cause gastric irritation. This method has been replaced by subcutaneous injections which convey the drug more directly to the lung tissue and enable it to act more energetically. It is said to lessen the muco- purulent secretion and render it more fluid. It softens the hardened tissues and allows the air to permeate deeper into the lungs. Although it is not thought to act on the cause of the disease, it aids the elimination of the broken-down tissue and favors the cicatrization of the ulcerated surfaces in the alveoli. The ethereal solution, or an emulsion of sterilized oil, may be used. The dose for internal administration is one-third to one-sixth grain several times a day, or, if used hypodermically, two doses in the day will be sufficient. In tubercular phthisis it is more frequently combined with guaiacol for hypodermic injections, and in this form has given much satisfaction. Beaumont Small. 1 Berlin, klin. Woch.. November 20, 1891. 2 New York Medical Journal, February 20, 1892. 3 Ibid., August 27, 1892. 4 Ibid.. October 29, 1892. 6 British Medical Journal, April 19, 1890. 6 Ibid., July 5, 1890. IODOL (Tetra-iodo-pyrrol). This compound of io- dine may be prepared by dissolving pyrrol in alkaline water and mixing it with a solution of iodine in iodide of potassium. The precipitate is collected, dissolved in alcohol, and reprecipitated. It is also obtained by the reaction that takes place when alcoholic solu- tions of pyrrol and iodine are mixed for twenty-four hours. Iodol separates when the mixture is added to water. It is a pale yellow, finely crystalline powder. It is without taste and does not possess any disagreeable odor. It is insoluble in water, and very slightly soluble in dilute alcohol. Strong alcohol dissolves one part in six ; glycerine, one part in thirty-four. Iodol is very soluble in ether and chloroform. It contains about ninety per cent, of iodine. Heated to 140° or 150° C. it is decom- posed with the evolution of violet iodine vapors. Iodol was introduced in 1885 by Ciamician and Silber, as a substitute for iodoform, its freedom from any dis- agreeable odor being a decided advantage. Like iodo- form it does not rank high as a germicide, but it has the (SUPPLEMENT.) same power of inhibiting the growth of bacteria and maintaining a surface clean and aseptic. To wounds, ulcers, and all suppurating surfaces it is applied in the same manner as iodoform, by dusting the powder on the part, or making it into an ointment with lanoline or vase- line. It may also be used in solution of alcohol, ether, or coilodium. Ether, 5 parts ; coilodium, 50 parts ; iodol, 1 part, is a favorite combination for local appli- cation. For gynaecological purposes a solution of io- dol, spirits, and glycerine, 1 : 16 : 34, may be used for saturating tampons, etc. Its local use has been highly recommended for ulcerations of the nose, pharynx, and larynx, particularly when due to a tuberculous or syph- ilitic cause. Iodol has been employed internally with success in conditions of the stomach and intestines accompanied by putrefactive and fermentative changes. It has been used with success in gastro-intestinal catarrh and ulceration of the mucous membrane. When its action is directed to the stomach it should be given in the intervals between meals ; when it is desired to act on the intestinal canal the most favorable time for its administration is immedi- ately at the close of the digestive process. As its con- stituent iodine is excreted in part by the pulmonary or- gans, it has been used in bronchitis, phthisis, and various diseases of this locality. In these conditions, in addition to its internal administration, inhalations and insuffla- tions were used. In syphilis it is also recommended : in tertiary forms of the disease it has given the greatest success. It is well borne by the system, having no effect on the temperature, circulation, or respiration ; iodism is of very rare occurrence. It is also thought to be of benefit in diabetes. The dose is from five to fifteen grains, two or three times a day : it should be given in wafers or pill form. Although the proportion of iodine is very large, toxic effects are very rarely noticed. The iodine is evolved very slowly, and its action is slow and gradual. Beaumont Small. IODONAPHTHOL - BETA (Naphthol-beta di-iodide). This derivative of iodine was introduced by Dr. Braille (Hepert. de Phar., November 10, 1891) as a substitute for iodoform, aristol, and other iodine compounds. It is prepared by mixing a solution containing 24 grammes of iodine and 27 grammes of potassium iodide with an- other solution containing 110 grammes of naphthol-beta and 40 grammes of caustic soda. There is then added a little solution of the hypochlorite of sodium corre- sponding to ten times its volume of chlorine. Iodo- naphthol is then precipitated. It is a greenish yellow powder, inodorous, tasteless, insoluble in water, very slightly soluble in alcohol, but soluble in ether and chloroform. It is recommended for the treatment of wounds, ulcers, and all conditions in which iodoform and other anti- septics are employed. It is applied as a powder dusted on the part affected. Beaumont Small. IODOPHENIN (lodophenacetin). This compound of iodine and phenacetin was described by Dr. Schol- vein, in 1891, at a meeting of the Berlin Pharmaceuti- cal Society. It contains fifty per cent, of iodine and forms in steel-blue crystals, with an odor of iodine, and a burning taste ; it colors the skin yellow. It is insolu- ble in water, soluble in alcohol and glacial acetic acid. Heated, or even when mixed with water, it is decomposed and iodine is set free. Owing to the looseness with which the iodine is re- tained in combination, it is recommended as a useful an- tiseptic. Experiments show that it possesses this prop- erty in a marked degree, but also has the irritating effects of free iodine, and it is doubtful if it has any advantage over pure iodine. When employed as an internal remedy it forms com- binations with the alkalies of the intestinal canal, and, from the readiness with which iodine is given up, poison- ous symptoms often follow the use of even small quan- tities. Beaumont Small. 555 lodo-Salicylic Acid. Jamaica. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. IODO-SALICYLIC ACID. A compound of iodine and salicylic acid in which one atom of hydrogen is replaced by one of iodine. It contains fifty per cent, of iodine. A di-iodo-salicylic acid is also prepared in which two atoms of hydrogen are replaced by iodine. It contains two parts of iodine in three of the compound. They are white, fine crystalline powders, slightly soluble in water, soluble in alcohol, ether, fixed oils, and collodion. They possess the combined action of iodine and sali- cylic acid, and are said to be very serviceable antiseptics. Internally, in doses from twenty to sixty grains daily, they have proved servicable in rheumatism and have suc- ceeded in relieving the fever and pain when the other salicylates have failed. Sodium di-iodo-salicylate. This salt occurs in white needles, and is recommended as an antithermic and anti- rheumatic. It is also said to be of great value as a local application in parasitic affections of the skin. The dose for internal administration has not been determined. Beaumont Small. IODOSULPHATE OF CINCHONINE (Antiseptol). This compound is obtained by the action of iodated iodide of potassium upon a solution of sulphate of cin- chonine, twenty-five parts to two thousand of water. It contains fifty per cent, of iodine. It is a very light, brownish powder, odorless, insoluble in alcohol and chlo- roform. It is an antiseptic and is said to pro^e serviceable in all conditions in which iodoform and similar compounds are employed. It may be combined with powdered talcum, one part to two ; or mixed with vaseline or lanoline, one part to ten. Beaumont Small. JAMAICA. Brief mention was made of this island in the article on the climatology of the West Indies in Vol. VIL, but owing to its increasing importance as a health resort and as a winter residence for invalids and others from the United States and Canada, it has been thought advisable to give a rather more detailed account of its climatic and other advantages in the present volume. Jamaica, a British colony, is an island in theCaribbean Sea, lying between 17° 43' and 18° 32' North latitude, and 76" 11' and 78° 20' 50" West longitude. It is about 90 miles south of Cuba, nearly 5,000 miles from Southamp- ton, and a little more than 1,400 miles from New York. It is 144 miles in length and from 21i to 49 miles in (SUPPLEMENT.) width. The surface of the island is crumpled up into a central mountain range with numerous outlying spurs. The highest points of this range, contrary to the usual rule, are in the eastern portion, whence the surface slopes irregularly toward the west, where the only level parts of any extent are found. There is one principal range, called the Blue Mountains, running east and west through the centre of the island, and from this secondary ridges run north and south, themselves giving off other and shorter spurs in a direction parallel to the central range. The highest point is Blue Mountain Peak which rises to an elevation of 7,360 feet ; Catherine's Peak has an alti- tude of over 5,000 feet, and there are several others, vary- ing in height from 4,000 to 5,000 feet. The island is in general well watered, the abundance of rivers and springs in most parts giving plausibility to the generally accepted interpretation of the name, Jamaica, which is believed to have signified in the aboriginal tongue the "Isle of Springs," or the " Land of Wood and Water." It is difficult, in a brief article of this nature, to describe satisfactorily the climate of Jamaica, as owing to the diversity of elevation and other causes, it varies greatly in different parts of the island ; in some parts it is hot, in others temperate and even cool ; in some it is dry in others the rainfall is very great ; and indeed the only characteristic common to all the varying climates of Jamaica is equability. Thus at the sea-coast the average temperature is 78° F. (the extreme range for the entire year being only 35° F.), while on the mountains at an elevation of between 4,000 and 5,000 feet the mercury ranges from 50° to 70° F., occasionally falling, on the summit of the highest peak and in midwinter, even to the freezing-point. In the accompanying charts, com- piled from the official figures in the " Handbook of Ja- maica," the mean temperature is given for the city of Kingston, and this may be regarded as the mean maxi- mum for the entire island. Unfortunately, systematic observations of the variations of temperature in the more elevated portions of the interior are wanting, but numer- ous unofficial readings of ordinary thermometers, taken with more or less regularity for a number of years by private individuals, show that the indoor temperature in places in the interior is on an average from 5° to 15° be- low the figures here given. From June, 1880, to the end of the year 1886 the readings of the thermometer were taken at eight-hour intervals, to wit, at 7 a.m. and 3 and 11 p.m., but since that time at 7 a.m. and 3 p.m. only. Januarj' February March April May June July August September.... October November.... December.... Means ortotals Month. Barometrical press- ure (Inches). For i 0.054 0.049 0.034 0.008 9.97! 0.001 0.024 9.983 9.951 9.937 9.962 0.005 the Ten Y< 78.1 74.6 74.7 75.8 77.9 79.4 80.8 81.1 80.4 80.1 78.9 77.8 75.7 Mean. Temp (Deg 3 00 86.4 85.8 85.7 86.5 87.2 88.5 89.7 89.4 89.7 38.9 88.9 87.0 Maximum. 104 66.8 •16.8 67.8 69.8 72.4 73.8 73.5 73.2 73.3 72.1 70.7 68.4 Minimum. ?ratu rees). ?ars f g Range. cd o 1 s 68 77 68 74 115 103 80 70 56 53 57 Wind, m diem les per p CD g 29 27 29 39 56 57 52 55 62 58 44 38 Cloud, per of whole centage sky. 1880 co 78 78 77 75 78 [ 78 76 79 80 81 78 78 Humidity. o op £ 0.96 0.32 1.59 1.02 6.00 5.51 2.15 4.09 3.59 4.69 1.22 1.50 Kingston. Rail (Incl i 3.87 2.62 2.88 4.18 8.40 7.83 4.32 6.83 6.86 7.84 5.07 5.60 The island. ifall les). 8 g 68.4 69.6 70.4 74.9 77.1 79.0 78.6 76.8 76.9 75.6 72.7 69.8 7 A.M. 84.7 o ix io ex ix ex c© io ix c© co 3 p.m. lean 1 (D 87.5 86.8 86.7 S5.8 86.3 87.0 87.7 90.4 91.2 89.4 87.1 84.1 87.1 Maximum. empe egrees CT 66.5 66.9 67.4 71.9 73.1 74.9 75.0 74.5 74.4 74.0 69.3 69.4 Minimum. rature 0- 16.0 20.3 19.8 18.4 14.4 13.9 12.8 15.4 16.7 15.0 13.1 14.8 17.7 Range. 91.5 90.4 . 90.2 1 91.4 89.1 91.0 90.9 96.1 96.7 91.7 91.7 89.9 89.3 Maximum. Extr P (I for the 67.7 61.5 63.6 63.2 68.4 69.9 72.2 72.0 70.0 70.5 70.3 66.9 63.9 Minimum. ?me of eratur Jegrees : Year 8 bo 28.9 26.6 28.2 20.7 21.1 18.7 24.1 26.7 21.2 21.4 23.0 25.4 Range. tem- D. 1891. •s £ 53.9 127.1 73.5 70.0 63.5 112.7 116.7 69.8 41.6 77.8 63.1 77.1 Wind, miles per diem. co 50 13 48 30 40 25 42 31 53 48 63 50 74 38 62 44 , 74 56 84 74 90 36 68 23 61 7 a.m. 3 P.M. Cloud, per- centage of whole sky. 8 84 79 80 78 78 76 72 79 SO 84 88 83 7 a.m. Humid- ity. 8 69 99 li 1 69 99 ; 99 99 K9 ( 19 69 99 09 3 P.M. 28.86 0.41 0.27 0.04 1.25 2.03 6.47 . 0.49 3 08 1.54 9.10 3.95 0.23 Rainfall, Kingston only (Inches). Meteorological Charts for the City of Kingston, Jamaica. (Compiled by Maxwell Hall, M.A., F.R.A.S., F.R.M. et S.) During the entire period the highest temperature observed was 96.1° F., recorded on September 12,1880, and the low- est was 56.7° F. recorded on December 4, 1887. The abso- lute maxima and minima are not given in the first table ; but their averages are about four degrees above and below the maxima and minima deduced from the daily readings. The most striking peculiarity of the climate of Jamai- ca is its variety combined with equability. A ride of a few miles into the hills will bring one from the torrid zone to the temperate-from an average temperature of nearly 80° F. to one of 65° or 70° F. But whatever dis- trict one may select, whether a warm or a cool one, he 556 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) lodo-Sallcylic Acid. Jamaica. will find the temperature very nearly constant, the ex- treme range for any one month being seldom over 25° F., while that for the entire year at Kingston is but 35° F., and in some parts of the island the excursions of the mercury are even more restricted than this. As regards humidity, also, there is the same choice of climate open to the invalid or the pleasure-seeker, who may select a place of residence with a humid or a dry atmosphere as suits best his inclinations or the necessities of the affec- tion from which he suffers. Jamaica, indeed, enjoys all the advantages in respect to uniformity of temperature of island climates in general, while the differences in ele- vation and in exposure to, or protection from, the prevail- ing trade winds, give to it the pleasing diversity, as re- gards temperature, humidity, and rainfall, of the most temperate of continental climates. In the first of the meteorological charts the rainfall is given in two columns, one for Kingston and the other the average for the whole island. There is, as a rule, less rain in Kingston than in most of the other parts of the island, the trade winds being drained of their moisture by the mountains to the north and east of the city. The heav- iest precipitation occurs in the Parish of Portland, which forms the northeastern extremity of the island. There are two principal rainy seasons, namely in May and Oc- tober, but there is usually more or less rain all through the summer months ; in the winter season in the neigh- borhood of Kingston the precipitation is very light. The rain usually comes in heavy showers of only a few hours' duration, and the days during which the sun does not shine at all are very rare. It is always possible to tell when rain is coming, as it can be seen, quite a while before its arrival, advancing from the mountains, thus giving one ample time to get under cover before the downpour begins. This is fortunate for the visitor, as a wTetting is one of the three things that an unacclimated person in the tropics must avoid, the other two being exposure to the direct rays of the noonday sun and to the cool night air. The population of Jamaica, according to the census of 1891, is 639,491, an increase of about 60,000 since the cen- sus of 1881, and of 133,000 since that of 1871. The cap- ital and chief city is Kingston, the largest and most important as well as the healthiest seaport town of the British West Indies. It is a city of 48,500 inhabitants, situated on gently sloping ground on the shores of a large land-locked harbor. The land on which the city lies is a gravel bed, and as it has a slope to the sea of about ninety feet to the mile the natural drainage is excellent. The water supply is drawn from two rivers at a distance of several miles from the city, and, as regards freedom from contamination, is above reproach. The Myrtle Bank Hotel, pleasantly situated on the shore of the bay near the outskirts of the city, affords ex- cellent accommodation for visitors, and there are also several other hotels and a number of boarding-houses where one may live modestly and at moderate expense. Another well-built hotel, having accommodation for one hundred and fifty to two hundred guests, is at Constant Spring, six miles from Kingston, near the foot of the mountains which enclose in the form of an amphitheatre the Liguanea plain. The hotel lies at an elevation of five hundred feet above Kingston, and from it is had a fine view of the harbor and Caribbean Sea beyond. The temperature here is uniformly ten to twelve degrees lower than that of the city. Other comfortable hotels are found in Santiago de la Vega, usually called Spanish Town, which was formerly the capital of the island, and at Moneague, a charming spot in the Parish of St. Ann, on the northern slope of the central mountain range. Mandeville, a beautiful little place in the hills, celebrated for its delicious oranges, is a favorite resort for Jamai- cans from Kingston and other coast towns who may feel the want of a change of air and scene. There are a hotel and several boarding-houses here, but intending visitors must take the precaution to apply in advance if they would be sure of being well suited. Among the coast towns on the north side of the island, Lucea, St. Ann's Bay, and Montego Bay are the most important from the point of view of the tourist and the invalid. In these and the other towns of the island visitors may find accom- modation at various boarding- and lodging-houses ; about which, however, it would be wise to inquire before mak- ing a selection, as they are of varying degrees of excel- lence and the reverse. At Port Henderson, on the southern shore of the island, at the entrance to Kingston harbor, there is a saline cal- cic spring which is said to possess tonic properties of no mean order and is much resorted to as a bath by conva- lescents and others from the neighboring districts. There is also a good beach for sea-bathing. There are several buildings here in good order, but the accommodations are not extensive. The place can readily be reached, however, by a steam launch from Kingston in forty-five minutes. No analysis of the water of the spring has ever been published. The diseases for the climatic treatment of which Ja- maica is well suited are bronchitis, fibroid phthisis, in- cipient pulmonary tuberculosis, catarrhal affections of the respiratory passages, Bright's disease, rheumatism, various forms of dyspepsia, and nervous prostration. All parts of the island are naturally not suitable for the treat- ment of all these varied affections, but for each one a locality exists where the patient can find the climate es- pecially adapted to the necessities of his particular dis- ease. Respiratory affections especially do well in this mild and equable climate, as may be judged from the records of one of the life insurance companies doing busi- ness on the island, which show that the company lost but one life from diseases of the respiratory organs (bronchi- tis) during a period of thirty-five years. Patients suffer- ing from these troubles are relieved in almost any part of the island, although there is even here a choice, as cases with scanty expectoration are most benefited in those districts where the atmosphere is most laden with moisture, while those in which there is free or even pro- fuse secretion are more quickly relieved in the neigh- borhood of Kingston and other parts where the humid- ity of the air is at a minimum. Patients with nervous prostration receive more benefit from a stay near the sea- shore than they do in the uplands, and the same is in a measure true of dyspeptics, especially of those in whom the gastric trouble is partly nervous in its origin. Suf- ferers from Bright's disease do well, as a rule, in all parts of the island, except possibly in the most elevated regions, where in the winter months the thermometer is apt to fall a little too low after the sun goes dowm, and where, es- pecially on the northern slope, there is at times rather too much rain to be agreeable. The same remarks apply also in the case of rheumatic patients, but the latter would do well to take a course of the waters at one of the numerous mineral springs, of which a few words may be said in closing this article. There are several medicinal springs in Jamaica, some thermal and others cold, which possess therapeutic prop- erties of no little value, and which are deserving of more careful study by balneologists than they have hitherto received. The most important of These, or at least the best known and the only ones at which passable accom- modations for visitors are as yet provided, are the Bath of St. Thomas the Apostle, about a mile from the town of Bath, in the Parish of St. Thomas, the Jamaica Spa, at Silver Hill, in St. Andrew's Parish, and the Milk River Bath at Vere, in the Parish of Clarendon. The first of these is a thermal sulphur, the second a chalybeate, and the third a thermal saline water. The table on the next page, extracted from a brochure on the " Mineral Springs of Jamaica," by the Hon. J. C. Phillippo, M.D., shows the results of analyses of these three and two other springs on the island. All of these springs are quite easily acces- sible from Kingston. The limits of this article will not permit of a detailed description of each of these springs, but the subjoined analyses will suffice to indicate their character and to suggest their therapeutic application. The waters of one or the other of the springs are of value, taken internally and applied in the form of baths, in the treatment of gout, rheumatism, chronic bronchitis, catarrhal conditions of 557 Jamaica. Joints, Diseases of. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Mineral Springs of Jamaica (SUPPLEMENT.) Handbook of Jamaica," published annually in London and Kingston. Thomas Lathrop Stedman. JAMBUL. This is the local name applied to the bark and seeds of Sizygium Jambolanum De Candolle \Eugenia Jambolana Lamarck), a tree belonging to the natural order Myrtacese. It is indigenous to tropical Asia and the neighboring islands, where it grows to a large size and bears a crop of edible fruit in July and August. It is also known as rose apple and Java plum. The Eugenia pimenta, the common allspice tree, and Eugenia cargo- phyllata, from which cloves are obtained, are both closely allied species. The fruit varies in size from a cherry to a pigeon's egg, and when ripe is olive-shaped, smooth, juicy, and purplish-black in color. It contains a single seed, which is enclosed in a thin, papery shell. All parts of the tree are astringent, and the bark fur- nishes a beautiful brown dye. The bark is smooth and whitish, and the cell-structure contains a number of char- acteristic pitted cells which are visible to the naked eye. The chemical constitution of the plant has not received much attention. It probably contains an alkaloid or glucoside, but none has been separated so far. A white crystalline substance has been obtained, termed jambo- rine, which is tasteless, insoluble in cold water, soluble in alcohol, ether, and chloroform. It is said to possess the active properties of the seeds, but its composition and properties are uncertain. The following analysis of the seeds has been furnished by Elborne ; Essential oil, a trace ; chlorophyll and fat, 0.27 ; resin soluble in alcohol and ether, 0.30 ; gallic acid, 1.65 ; albumin, 1.25 ; color- ing matter, 2.70 ; moisture, 10.0 ; insoluble residue, 83.73. The plant is highly esteemed in India for its medicinal properties, and is used by the native physicians in the treatment of many diseases. The sap or juice expressed from the leaves and bark contains the astringent proper- ties of the plant, and when mixed with goat's milk is thought to be particularly beneficent in the intestinal disorders of children. The juice, and an infusion of the bark, are also employed in dysentery, diarrhoea, and in leucorrhoea. A liquor, jambava, is prepared from the fruit by fermentation ; it possesses a stimulating and tonic action, and is a favorite beverage of the Hindoos. The most important use of jambul is as a remedy for diabetes, and it is in the treatment of this disease that it has acquired notoriety and attracted the attention of the profession during the past few years. It has long been employed for this purpose in the East, where it has the reputation of producing a rapid and, in many instances, a permanent cure. The quantity of sugar and urine is reduced, the many distressing symptoms relieved, and a return of health and strength is said to follow its admin- istration. This treatment was brought to the notice of the English physicians in 1883, by Banatvala, a medical officer in the service of the Madras government, and has been the subject of numerous clinical and experimental researches. Von Mehring and Graser1 performed an important series of experiments to demonstrate its power to check the production and lessen excretion of sugar. They pro- duced artificial diabetes in animals by the administration of phloridzin, and carefully estimated the amount of sugar excreted when phloridzin was given alone, and when it was given in combination with jambul. The diminution was found to be invariable and very decided. The following figures indicate the results in three exper- iments : Sugar excreted without jambul 12.2 10 10 Sugar excreted with jambul 2.1 1 1.5 They also proved that it was devoid of any toxic ac- tion, as very large quantities were given without pro- ducing any ill effects. Experiments have also been made to show its inhibitory action on saccharine fermentation by adding it to a solu- tion of starch and malt, and it has been clearly shown that the quantity of sugar is reduced in accordance with the amount of jambul present. In one instance it was found One Pint contains: Milk River Bath. (Analysis by Sa- rony and Moore.) 1 St. Thomas the Apostle. (Anal- ysis by Bowrey.) Jamaica Spa. I (Analysis by E. Turner.) Silver Hill Spring. (Anal- ysis by Bowrey.) M a n a t e e Bay Spring. Carbonate of sodium Carbonate of iron Carbonate of calcium Chloride of potassium Chloride of magnesium.... Chloride of sodium Grains. Grains. 0.21 Grains. Grains. Grains. 1.44 0.04' 0.866 2.71 37.08 4.34 186.93 1.48 0.125 52.52 Chloride of calcium 13.50 1.31 Chloride of lithium traces. Sulphate of sodium 27.93 0.79 0.341 Sulphate of magnesium . .. Sulphate of calcium Sulphate of iron Sulphate of aluminium.... Phosphate of aluminium .. Iodide of sodium 2.831 1.745 0.62 1.234 2.210 0.833 4.168 1.360 traces. traces. Bromide of sodium traces. Bromide of potassium .... Bromide of magnesium.... Silicate of sodium traces. traces. 0.45 Silica .... traces. 0.883 Totals 266.88 3.59 10.075 6.521 60.88 Temperature (Fahrenheit). Sulphuretted hydrogen.... 92° 130° 63° mined. the stomach and intestines, constipation from abdominal plethora, hepatic and other congestions of the abdominal viscera, amenorrhoea, anaemia and chlorosis, various forms •of skin diseases, tertiary syphilitic lesions, and chronic malarial affections. The Government has made grants from time to time for the improvement and care of the buildings at these baths, but there is yet much to be de- sired in the matter of cuisine, bathing facilities, attend- ance, and other things that contribute to the comfort and entertainment of the invalid. In the absence of these •desiderata they still possess the great advantage that they may be visited in the winter season, when the more pre- tentious and better equipped spas in Europe and the United States are closed. There are several lines of steamers running between ■Jamaica and New York, Boston, and Halifax, the voyage from New York being made in from four to six days. During one season steamers plied between Tampa, Fla.; and the north shore of Jamaica, and it is probable that this service will be resumed again as soon as the railroad .across the island, now nearly completed, is open for travel. There is usually no lack of amusements in Kingston in the way of horse races, yachting, tennis and cricket matches, etc., and there is also a theatre where perform- ances and concerts are given occasionally during the winter. The roads throughout the island are up to the best English standard and the facilities for riding and driving are unsurpassed. A railroad runs from Kingston in a northwesterly direction to Montego Bay, with a branch line to Anatto Bay and Port Antonio, towns on the north shore. Communication with the coast towns is had also by steamers which sail around the island once a week, leaving Kingston every Tuesday. There is fre- quent mail communication with the United States and Canada, and the island is also connected with this coun- try by cable. Churches of all the leading denominations are found nearly everywhere, and in most of the larger towns are well-appointed clubs, libraries, and social or- ganizations of various sorts. The best months in which to visit Jamaica are Novem- ber to April inclusive, as these are the coolest and dryest of the year, but one accustomed to the fierce summer heats of our northern cities would find a grateful change in the hills of Jamaica even in midsummer. Much valuable information concerning Jamaica as a health resort may be obtained from a work on "The ■Climate of Jamaica," by the Hon. J. C. Phillippo, M.D., published by T. & A. Churchill, London, and from " The 558 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Jamaica. Joints, Diseases of. that a solution of rice starch with a definite proportion of malt produced 27.4 parts of sugar ; when fifteen grains of jambul were added the amount was reduced to 9.4 parts, and when twenty-five grains were used there was only 1.3 part of sugar formed. Accompanying this evidence in favor of the drug have been a number of reports of cases treated, and in nearly all it was found that the desired effect was produced in a greater or less degree. Among these are reports by such observers as Kingsbury,2 Saundly,3 E. H. Fenwick,4 Mahomed,6 Egasse,6 Villy,1 Lewaschewq8 Lawrence,9 and Britto.10 In some of the cases in which it was used it failed altogether, in others the sugar reappeared immedi- ately the remedy was discontinued, and frequently it would only lessen the symptoms in a slight degree ; but the general tenor of the reports is in favor of the remedy. Villy, who views this treatment more sceptically than any of the others, acknowledges that it is of service " in cases of moderate severity, provided the diet be abso- lutely restricted." In reviewing these reports, there is apparent a great deal of uncertainty in the employment of the drug. Some of the cases were treated with small doses and the most satisfactory results were obtained ; in other instances the reporters state that in larger quantities only can any benefit be expected. The same variation is observed in the dieting of the patients : some were allowed to eat freely of any food they desired, while others were restricted to a proper diabetic regimen, and in both classes were suc- cesses and failures recorded. A more scientific turn has been given to the study of the remedy by the British Medical Association, in empowering its therapeutic com- mittee to inquire into the mode of action. A supply of the fresh seeds was obtained and furnished, with certain directions, to such of its members as desired to make use of them. How the drug acts, or what are the forms of the disease in which it is indicated, have not been determined. It has been thought to act by simply checking the transforma- tion of starch into sugar, producing the same effect as a carefully prepared diet; but the experiments of Graser would indicate its action to be of a more radical charac- ter, and in many of the cases in which its use has been followed by marked benefit, a restricted diet and numer- ous other remedies had previously been employed. Villy, who studied the drug under the direction of Du- jardin-Beaumetz, considers that any beneficial action only accompanies the use of the remedy when starchy food is excluded, and he seems to think that it has very little power in preventing the transformation of starch into sugar. He repeated the experiments with solutions of starch and malt, and found that instead of the diasta- tic ferment being checked, the conversion of the starch proceeded more rapidly with the jambul added than without its presence. The seeds and the bark both possess the anti-diabetic action, but the seeds are the more active of the two. A paper presented by Dr. T. Stevenson, of Bombay, to the Pharmaceutical Conference, held at Edinburgh, 1892, states that the fresh seeds, or an extract prepared from the fresh seeds, is the most serviceable and the only cer- tain method of securing the medicinal properties. Un- der any circumstances, it is recommended that the seeds should be carefully preserved and only reduced to pow- der as required. Some such variation in the active properties of the drug may account for the uncertainty of its action and the difference in the quantity adminis- tered. The usually recommended dose is five to ten grains of the powder, or five to ten minims of the ex- tract, three or four times a day. This, however, appears to be inadequate, and much larger doses are now advised. Dr. Britto, who reports from India his successful treat- ment of a number of cases, gave it in doses of one drachm of the powder, or one fluid drachm of the ex- tract, three times a day ; and Professor Lewaschew, who reports his experience of two years, in which he em- ployed the drug with marked success, advocates it in doses of as much as from twenty to forty grammes (5 to 10 drachms) in the twenty-four hours. The British (SUPPLEMENT.) Association, in their recommendations for its experi- mental use, state that the dose of the powdered seeds should be from one drachm to one ounce daily. No toxic action follows its use, but instances of nausea and depression have been reported from its continued use. Beaumont Small. 1 The Lancet, p. 902. 1889. 2 British Medical Journal, March, 1887. 3 The Lancet, October, 1887. 4 Ibid., October, 1888. 6 London Practitioner, December. 1888. • Bulletin General de Thdrapeutie, July, 1890. 7 Ibid.. January, 1891. 8 British Medical Journal, March, 1891. 9 The Medical News, January, 189.3. 10 The Therapeutic Gazette, February, 1893. JOINTS, DISEASES OF THE. Treatment in General.-Local applications of all kinds, poulticing, blistering, the cautery, and ice-bags, so much used a few years ago, are no longer employed with the expectation that any effect will be gained upon the disease itself, or that anything more than temporary relief to the super- ficial symptoms will be attained. The same may be said of compression in tubercular synovitis. Massage and passive motion are not only of no use, but are productive of much harm when used during the course of the dis- ease. After the disease has terminated, they have a cer- tain cosmetic value ; they hasten the time when the full- est possible motion and the greatest attainable plump- ness are regained, but they accomplish nothing which will not be sooner or later gained by use alone. Subcutaneous Injections.-Various medicaments have been injected into masses of tubercular tissue and tuber- cular abscesses, but none have held the confidence of the profession except iodoform in glycerine or olive oil. This is used in ten per cent, strength and carefully sterilized. When injected into tubercular tissue a few drops are de- posited here and a few drops there throughout the mass. When used in abscesses, the abscess contents are as com- pletely evacuated as possible, and then from one to four drachms are injected, and moderate compression applied. The cavity usually refills, and the process may have to be repeated many times ; or after any one of the injections it may not refill, but gradually close, and the tubercular lin- ing membrane shrink away. If the injection be kept strictly aseptic a cure is effected in much less time than could be had in any other way ; but if septic infection does result, the injection proves an injury instead of a benefit. In young children who fear the pain of the in- jection, the advisability of the procedure may be ques- tioned, it being borne in mind that treatment by brace must in any case be continued for many months. Fixation and Traction.-The treatment of chronic joint disease by "motion without friction," attained by elastic traction in an ambulatory apparatus, is no longer attempted. All surgeons now agree upon the necessity of fixation during the active stage of the disease. At a somewhat later time many allow motion within the limits of muscular restriction, while others insist upon immobilization until a complete cure appears to have been accomplished. Traction, or " distraction," is employed either for the fixation which it gives (Judson); or because of the in- creased area of motion possible during its use (Sayre) ; or as a means for allaying muscular spasm (Shaffer). It is obvious that whatever will most quickly allay muscular spasm is of prime importance. The advocates of traction believe that traction is of the first importance, and the best, if not the only, means for satisfactorily do- ing this. On the other hand, the advocates of pure fix- ation claim that fixation alone without traction will more quickly allay the spasm than will traction, or fixation combined with traction. The two methods have not been given a fair, unprejudiced trial and comparison. Meantime, the majority of the profession use a more or less perfect, and more or less defective, combination of both principles. In treating joint diseases in the lower limbs, traction during recumbency and during walking are quite differ- 559 Joints, Diseases of. Joints, Diseases of. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. ent problems, and we feel quite convinced that continu- ous, uninterrupted traction cannot be had by any splint upon which the patient walks. Hip Disease.-The etiology of the various deformi- ties of hip disease has recently been studied by Dr. A. M. Phelps, of New York, who arrived at the following conclusions : Abduction always precedes flexion, or is attended by it, in the first stage. Abduction and outward rotation are always present in the second stage. Flexion is nearly always present, but is absent in a few cases. When the limb is flexed beyond forty degrees, and fre- quently at a much lesser degree (twenty degrees), it quite rapidly passes to the deformity of adduction, in- ward rotation, and flexion, 'whether the capsule contains fluid or not. Assuming the work of the glutaeus maximus operating in a given triangle with two pounds and a half weight to be fifty pounds, other muscles operating in different tri- angles of different weights can be accurately estimated as to their comparative strength. Following this rule, it was found that the glutaei muscles were capable of one hundred and thirty-one pounds, whereas the adductors were only capable of one hundred and sixteen pounds, proving that the abductor group was much stronger than the adductor in the subject examined. From clinical observation it was concluded that the reason why the limb went over to the deformity of the third stage of hip-joint disease, was because the actions of these muscles were all changed by the flexion of the limb, or from pathological destruction of the joint changing or annul- ling the action of the muscles by destroying the leverage. In the first stage the limb is slightly flexed and ab- ducted to relieve the tension of the capsule. This de- formity is increased as the case passes to the second stage by the spasm of the muscles about the hip-joint. The great glutaei, outward rotators, tensor vaginae femo- ris, and flexors have the advantage of leverage. As a rule, the deformity of the third stage appears only after flexion to twenty-five degrees has taken place. This is because after the limb has passed to twenty-five degrees of flexion, the adductors to a very great extent become internal rotators ; the external rotators al- most totally lose their power as external rotators, and become ab- ductors (with the exception of the quadratus femoris and obturator extern us), and the tensor vaginae femoris becomes a powerful inward rotator. Erratic deformities occur from partial or complete dislocations, and from shortening of the neck of the femur, which destroys the action of the flexors, and often of the ad- ductors, by changing the leverage. Extreme flexion may be accom- panied with abduction and outward rotation ; or adduction may be ac- companied with outward rotation. The treatment may be by fixation with a plaster-of-Paris splint, or by a brace. If the plaster splint be made use of, it should extend from the ankle to the axilla. It is diffi- cult to apply without favoring in- creased flexion deformity. Bartow, of Buffalo, partially suspends pa- tients in the conventional suspen- sion apparatus and applies the splint, while the patient bears a part of his weight by the well limb upon a block, the affected limb dangling, or gently pulled downward into the best possible position. The Thomas hip-splint (Fig. 368) is the only purely fixative splint in general use. The objections which have been raised to it are : (1) That it does not furnish (SUPPLEMENT.) complete fixation ; (2) that it does not prevent subluxa- tion ; (3) that it does not counteract muscular contrac- tion ; (4) that it increases pain because of its leverage action. It is proper to say that these objections are •raised by surgeons who have not used a properly con- structed splint upon the principles laid down by Mr. Thomas, and the objections are therefore purely theoret- ical, and based upon an imperfect knowledge. The persistent deformity of hip disease is flexion. So long as flex- ion is present, and so long as mus- cular spasm tending to flexion is present, the splint, by its direct an- tero-posterior leverage action, if properly applied, absolutely con- trols antero-posterior motion. Lat- eral motion, to which there is less tendency, is controlled in the same way, but less efficiently. When there is no longer any deformity, and when the joint has so far re- covered that muscular spasm no longer tends to deformity, the fixa- tive power of the splint is greatly lessened ; but at that time a certain amount of motion does no harm, as is admitted by those who object to the use of this splint. As to sub- luxation of the femur during the use of the splint: One such case has been reported, but there is no evidence to show that the reporter of the case knew how properly to use the splint. On the other hand, subluxation now and then happens when the traction-splint is being used, both in walking and recum- bent cases. As to muscular spasm : Whatever is able to keep the parts in most perfect quiet, that most quickly relieves the spasm. In my experience the Thomas splint does this ; and after using the long traction hip-splint in many hundreds of cases, I have en- tirely abandoned its use. I am very certain that pulling upon the muscle is not logically, nor is it clinically, the most successful way to abolish the involuntary muscular spasm of joint disease. That which acts to allay the in- flammation from which the spasm arises ought to most quickly allay the spasm, and in practice we find that immobilization of the joint does this. As to the increase of pain : It does in many cases increase the pain for the few days during which the deformity is being overcome, but the sum total of pain had better be condensed into two or three days than spread over the days and nights of two or three months. That injury is inflicted by the leverage action which causes the increase of pain has not been proven by any increase in the number of patients having abscesses, stiff joints, or short legs. The Thomas hip-splint (Fig. 369) consists of a main stem and several bands. The stem is of fiat bar iron, from x f to J x inch ; in length, reaching from the lower angle of the scapula to the lower third of the leg. The size of the bar must be large enough to prevent any bending or tremor. The chest band is of the same width as the main stem, but thin enough to be bent by the hands of the surgeon in fitting it to the chest. In each end is forged a hole three-fourths of an inch in diameter, and at its middle it is riveted to the top of the main stem. It is long enough to surround the chest below the axillae. The thigh and calf bands are of somewhat lighter iron ; the thigh band is riveted to the stem at such a point that it shall be a little below the perineum ; and the calf band is at the lower end of the splint. Both are large enough to nearly surround the limb at the points indicated. At times an abduction or an adduction wing is attached to the main stem at a point where it will pass around the flank of the patient above the iliac crest and below the ribs. It is of iron of the same thickness as the chest band. In the main stem are two bends dividing it into a Fig. 369.-The Thomas Hip-splint, as used by the Author. Fig. 368.-The Thomas Hip-splint Applied. 560 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Joints, Diseases of. Joints, Diseases of. straight body portion and a straight leg portion, the lower portion being parallel to and slightly in advance of the upper portion. The lower bend is opposite the glutaeo- femoral crease, and the upper one opposite the hip-joint. The splint is applied by opening out the wings of the bands on one side and slipping it under the patient until the stem rests in proper place, when the wings are again bent in to the side of chest and leg. The splint is sup- ported by a strip of broad band- age looped around the main stem beneath the chest band, and car- ried over each shoulder and down to the holes in the ends of the chest band in front, after the manner of suspenders. The limb is band- aged to the splint by an ordinary roller from the bottom to the thigh band, or by a short piece at the bottom and another above the knee, or by a figure-of-eight around the knee. If the limb cannot be brought fair- ly down, the brace may be bent at a point oppo- site the hip- joint and straightened during the s u c c e e ding three or four days; but this should not be done if it can be avoided. If the splint tends to shift to right or left, the wings on the side toward which it moves should be somewhat opened and those on the op- posite side drawn closer in to the patient. Abduction and adduction are corrected a n d prevented by an extra wing at- tached to the m a i n stem a t such a point that it will pass around the flank on the side toward which it is desired to draw the limb. When rapidly straightening a deform- ity, and in cases where the muscular spasm is intense, the skin underneath the brace should be changed once or twice a day and kept dry and well powdered. In moving a patient with a very sensitive joint, the patient places his well limb across the affected mem- ber, while the assistant lifts him by placing one hand under the brace and limb at the back of the knee, and with the other grasps the chest band. Judson's splint (Fig. 372) is the most rigid of the long traction hip-splints. The hip band is of heavy steel coated with hard rubber. This is firmly bolted to the head piece of the side- bar, so that there may be no motion between them. The side-bar and sheath are of steel, about one-quarter of an inch thick, and in width from one-half inch at the bottom to one and a quarter inch at the upper part, (SUPPLEMENT.) where most of the strain must be borne. Adhesive plasters attached to the thigh and leg give means for traction, and a perineal strap gives counter-traction as in the conventional traction hip- splint. Ridlon's hip-splint (Fig. 373) (no longer used by the author) consists of one of the earlier forms of the Taylor hip-splint to which has been added a side-bar extending up the side of the body to the axilla, and a chest band sur- rounding the chest at this point. A strong bolt fastens the chest-piece, the hip-band, and the extension-bar im- movably together. Traction a n d counter - traction a r e made in the usual way. The advantage of the splint over the usual forms of traction splint is, that the patient can- not voluntarily bend to any extent from foot to axillae. Phelps's splint (Figs. 374 and 375) is a combination of the ring of the Thomas knee- splint, the usual extension- bar placed, however, at the inner side of the leg and thereby subjected to less lat- eral strain, and Ridlon's chest-piece. To these is ad- ded a lever to exert lateral traction by pulling outward upon a band passed around the thigh. The splint more rigidly immobilizes than does Ridlon's splint, but has this disadvantage, that it cannot be applied while any considerable deformity is pres- ent. The deformity must first be reduced by other means. Correction of Deformities.- Flexion, abduction, and ad- duction, when disease is still present, should be corrected as rapidly as possible by leverage action, supplemented or not by traction, as the case may demand. True shorten- ing cannot be remedied, but may be obscured by placing the limb in abduction and slanting the pelvis. Deform- ities present in cured cases may, if there be any motion present, be corrected by lever- age, supplemented or not by section of the shortened soft parts. If there is no motion and no muscular spasm, sec- tion of the bone by saw, or preferably by chisel, is indi- cated, supplemented or not with section of the shortened soft parts. Whatever method is employed to correct the deformity, the limb must be thoroughly immobilized until all pain, tenderness, and mus- cular spasm have subsided. Knee-joint Disease.- The same principles govern the treatment of disease at this articulation as at the hip, and need not be rehearsed. The most effective apparatus is the Thomas knee- splint (Figs. 376 and 377). It is made in two forms : the bed splint and the caliper splint. They differ only in Fig. 370. - The Double Thomas Hip-splint. Fig. 373. Ridlon's Traction Hip-splint. Fig. 371. - The Thomas H i p-splint, shortened for walking during con- valescence. Fig. 372. Judson's Hip-splint. Fig. 374.-Phelps' Hip-splint. 561 Joints, Diseases of. Joints. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. the manner of termination at the bottom, as will be seen in the description. The splint consists of a thigh-ring and two side-bars ; it is made of one-fourth to seven-six- teenths inch iron wire, the ring being welded to the side-bars and sloped from without inward and from before backward. The angle formed by the lateral plane of the ring and the inner bar is about 135 de- grees ; the posterior angle formed by the plane of the ring and the inner bar is from 55 to 70 degrees, de- pending upon the thick- ness of the padding of the ring. The slope of the ring must be sufficient to leave that part of the ring which comes beneath the tuber- osity of the ischium a little lower than any other part. The shape of the ring is irregularly ovoid, consid- erably flattened in the front and drawn out at the in- ner portion of the back. The shape varies somewhat, depending upon the thick- ness of padding to be put on. The ring is padded firm- ly with felt and covered with tan sheep-skin put on wet, stretched snugly, and sewed on the outer surface of the ring. When the brace is to be used in bed it is made to extend six or eight inches beyond the foot, and usually is dimpled at the ex- tremity so that the straps from the adhesive plasters will not slip, if they are used to give fixative traction. When it is desired to trans- form the bed-splint into the caliper, the portion ex- tending beyond the foot is cut off an inch below the sole and an inch of each end bent to a right angle toward the opposite bar. These bent ends are sprung into a hole or tube set transversely through the heel of the shoe. In either splint a sling of leather, from four to six inches wide, is stretched across from one bar to the other at the back of the knee, and another nar- rower piece at the back of the ankle. A pad is placed over the front of the thigh, close down to the patella, and another over the shin just below the knee-joint, and back- ward pressure is made by strap or a piece of band- age passed across the pad, beneath each side-bar and back across the pad and fastened. When any back- ward displacement of the tibia is present, the sling at the back is slipped lower and only the thigh-pad used for backward pressure. In using the caliper splint care must be taken that it shall be long enough to keep the heel clear from the sole of (SUPPLEMENT.) the shoe in walking. The form of Thomas knee-splint extending fonr inches below the foot and terminating in a patten bottom is no longer used, as it does not give efficient immobilization. Elbow-joint Disease.-This joint can be most effec- tively immobilized in a very simple manner. A strip of broad bandage is tied about the wrist, the forearm is flexed to such a point as will be most useful in case an- chylosis results, the bandage is then carried to the neck and tied, and then around the neck and again tied, so that neither hand nor head can be drawn from their re- spective loops. At first sight it would seem that this sort of immobil- ization would be far from complete, but the contrary is the case. The position which the forearm assumes in relation to the arm in elbow-joint disease is one of ex- tension to about one hundred and sixty degrees, so that if the forearm be held flexed to about seventy-five de- grees, the tendency to extension acting in opposition to the restraining influence of the sling gives effective im- mobilization. The patient does not voluntarily flex the forearm beyond the position of restraint so long as the disease is sufficient to be aggravated by such motion. In diseases of the other joints nothing worthy of record has been recently advanced. John liidlon. JOINTS, MOVABLE BODIES IN. There is little, in- deed, of unusual moment that can be added now to that which has already been stated in the original article writ- ten for the Handbook in 1886. Now, as then, joint de- rangements are due, not only to the effects of injury and disease on the component parts of the articulation, but also to the presence in them of the products of various histological processes that happen elsewhere in the body, in similar tissues. The semi-lunar cartilages are common seats of injury and disease in the knee, as not only them- selves, but also the ligaments connected with them, suffer conjointly and separately, or with interchangeable rela- tionship with each other. The injuries and diseases char- acteristic of these joint-structures constitute the most im- portant items of affliction incident to the life-history of joints thus provided. The cartilages themselves may be displaced, bruised, crushed, or torn, and the ligaments maintaining them in proper relationship with the artic- ular surfaces and properly attuning their functional movements, may be stretched, bruised, or ruptured. The internal semi-lunar cartilage of the knee-joint and its attachments suffer more frequently than do the external similar structures. The exact reasons for this are some- what problematical. It may be accounted for by the fact of the greater degree of functional activity that is present during motion at this portion of the joint ; for the internal semi-lunar cartilage moves over a greater area of artic- ular surface than the other, in order to meet its functional requirement in connection with the inner condyle of the femur, which condyle passes through the segment of a larger circle than its fellow. Also greater weight is received on the inner condyle than on the outer, and, too, it is more exposed to external violence than is the former. Functional derangement of these cartilages, resulting in their becoming pinched between the moving articular surfaces, is predisposed by any roughening proc- ess that hinders the harmony of action necessary for the proper performance of the advancing and retiring move- ments imposed on them during activity of the articular surfaces between which they are placed. And should this condition be present together with relaxed ligament- ous attachments of the cartilages, then, indeed, will the danger of pinching be increased, and even actual displace- ment be threatened. Especially is this true of the inner cartilage in the presence of an actual extension with supination of the leg. In their normal state these carti- lages cannot be broken, although they may be bruised, torn, and twisted. If, however, they have become hardened by morbid processes, then it is not impossible that they may be displaced or broken by severe circum- scribed violence directed from without. They may be broken, or their coronary attachments may be ruptured under these circumstances by violence, while the weight Fig. 375. Phelps's Hip-splint Ap- plied. Fig. 376. - The Thomas "Cali- per" Knee- splint, for walk- ing. Fig. 377.-The Thomas Knee- splint for use when patient is in bed. 562 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Joints, Diseases of. Joints. of the body is borne on the extended limb, but they can- not then be displaced. Violence directed against the outer border during the act of flexion of the leg and thigh, may cause them to be torn from their attachments and even ruptured, and then if extension follow quickly and forcibly, they may be overridden by the opposing articular surfaces, and thus held or be forced to the pos- terior part of the joint cavity. If the joint be already impaired by ligamentous relaxation and other structural changes, then, surely, derangement and displacement of these so-called cartilaginous structures much more read- ily takes place. The special indications of semi-lunar involvement re- late more especially to modifications of the normal con- tour of the joint surface at the site of the cartilages, as determined by palpation. With the leg extended, the external rounded borders of these cartilages can be easily felt in the normal state, and it will be noticed that they will recede gradually from the touch as the limb is being flexed, causing instead a marked depression corresponding to their former site. If the cartilage be displaced outward, then undue prominence is noted at that point, which may or may not disappear with flexion of the limb. The semi-lunar cartilages may become dis- placed outward at other aspects of the joint, but in these instances their mobility is less influenced by the normal movements of the joint than in the first instance. If the displacement be inward toward the centre of the joint, then the degree of extension which may be attainable need not return the cartilage to its normal site, and, there- fore, a depression is noted in lieu of the normal contour of the cartilage. If the coronary ligaments be ruptured, these cartilages will recede and advance perceptibly dur- ing flexion and extension of the leg, provided the articular surfaces, and those of the adjacent cartilage, are smooth, and properly lubricated, If otherwise, they may be easily pinched and perhaps overridden during extension of the limb. One should judge of the nature and extent of the injury of a joint by carefully comparing its physi- cal and functional characteristics with those of its un- injured fellow. Treatment.-If the cartilage be displaced, its prompt reduction should be attempted. Various methods of procedure are advised to accomplish this purpose. The chief element of a successful reduction is based on the fact that flexion of the leg relaxes the connecting structures of the joint in direct proportion to the degree of that act. Now, since relaxation loosens, joint tension, it follows naturally that loosening of the tension favors the restora- tion of the displaced cartilage, either by its own inherent elasticity or by direct manipulation, in the best possible manner. For this reason various degrees of extent and rapidity of flexion, combined with supination and pro- nation of the leg, are advised, for the purpose of reduction. The following, advised by Allingham, is sufficiently com- prehensive to suggest, and probably even meets the de- mands incident to, displacement. " Flex the leg as much as possible on the thigh, drawing upon the tibia as if to separate the articular surfaces from the femur. Then rotate the tibia inward, if the internal cartilage be dis- placed, and outward, if the external cartilage be displaced. Both movements should be resorted to if the usual one does not succeed. Then extend the leg on the thigh quickly, but not with great violence, at the same time pressing with the thumb upon the projecting cartilage." After reduction, rest and immobility, until the danger of inflammation has subsided, will commonly suffice. If re- duction fail of accomplishment, then one of two plans can be pursued :- 1. The employment of massage and passive motion, after the symptoms incident to the injury have subsided. This course will in time restore the function of the joint, although at intervals derangements will ensue, the same as may happen even when the reduction is accomplished at first. 2. The exploration of the joint through a liberal per- pendicular or oblique incision made into it at the aspect of the displaced structure, about three-fourths of an inch from the ligamenturn patellae. If the integrity of the car- tilage will permit, it should be returned to its proper position, and be stitched there with fine aseptic silk. If this be not allowable, on account of the great extent to which its structure has been damaged, it should be re- moved entirely. In cither instance, finally, the joint should be irrigated with an antiseptic solution and closed by two rows of sutures-the first including only the sy- novial membrane and its closely adjacent connective tis- sues ; the second, the remaining tissues of the wound. Either silk or catgut can be used, as best suits the wish of the operator. The employment of drainage will de- pend greatly on the extent of handling to which the structures of the joint-cavity have been subjected. Ordi- narily it need not be employed ; still, the introduction into the joint of carbolized horse-hair, or a small rubber tube, for drainage purposes, cannot in itself do harm, and should, therefore, be employed when, in the judgment of the operator, such a step is indicated. The alar structures of a joint may become so elongated or enlarged, as the result of disease, as to be pinched by the articular surfaces.' Extravasations of blood within their folds may so change their relations with the joint surfaces as to cause pinching at once, or bring it on at some later date, on account of the formation of fibrin- ous bodies within them, which remain attached to the borders of these structures, or are eventually discon- nected and wander freely in the cavity. Histological changes taking place singly or otherwise in the various tissues constituting a joint, often lead to the pres- ence within it of movable and attached bodies that can be characterized according to the nature of the process causing them, or the structure of the tissues that give them birth. Consequently, they may be described as of fibrinous, fibrous, cartilaginous, fibro-cartilaginous, osteo- cartilaginous, tuberculous, and biform origin, etc. The symptoms of the presence of these morbid bodies are illustrative of joint derangement in the full sense of the term, as compared with those of cartilaginous displace- ment proper, and little of practical importance can be added now to what has already been stated elsewhere in the Handbook on this subject. Dr. Robert F. Weir recently called attention {Medical Record, July 16, 1892) to an interesting condition causing joint derangement of the knee, which simulated in all essential respects the presence in this joint of a movable body. Exploration of the joint revealed the fact that a duplication of fibrous membrane extended from the under surface of the patella and the adjoining surface of the femur to such a length as to be caught between the arti- cular surfaces during flexion, thus "locking" the joint, and also impeding extension. A grating sound beneath the patella attended the establishment of motion in the two cases of this disease which he had observed. Both were readily cured by removal of this obstructing agent. The treatment for movable bodies relates to the manipulations employed to overcome the joint-locking incident to them, which differs in no essential respect from that used to re- store displaced semi-lunar cartilages. Vigorous extension of the leg, during its complete flexion, with or without rotation, will commonly dislodge the troublesome agent and relegate it, for a time at least, to some remote recess of the joint cavity. The operative treatment is the most important, since it offers the only means of prompt and permanent relief, and also because it is attended with an element of risk to the patient which begets at the same time a respectful con- sideration of the joint cavity on the part of all those re- sponsible for the result of operative measures. The fol- lowing statement presented by Tuttle will emphasize the operative measure and its dangers much more pointedly than mere words alone can do. It is very important, in- Cases. Cured. Failures. Mortality. Per cent. Per cent. Per cent. Beamdorf 216 66.2 IS. 99 14.81 Lorry. 1860 167 68.86 19.76 11.38 Browne, 1884 88 82.95 ' 5.68 14.36 Tuttle 107 97.19 2.81 563 Joints. Knock-Knee. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. deed, to note the difference in the results as modified by the recent antiseptic measures, since the results in no uncertain manner impress upon one the fact that the wise use of modern methods relieves nearly all of the afflicted, without causing any of them the loss of life or limb. Joseph D. Bryant. KAVA-KAVA. This is the native name of Piper Methys- ticum, a shrub belonging to the natural order Piperaceae. It is indigenous to the Polynesian Islands. It has ac- quired a local reputation as a remedy for dropsy and pain- ful affections of the bladder and the urinary tract, but it is chiefly prized as the source of a native national beverage. The plant is reduced to a pulpy mass by mas- tication and allowed to ferment, until an intoxicating liquor is produced. The primary effect is as a stimu- lant, but ultimately it causes a peculiar form of intoxica- tion in which the limbs and body are uncontrollable and helpless, while the mental faculties are clear or slightly dazed. The root is the part employed for medicinal purposes, and has been closely investigated by Dr. L. Lewin, of Berlin, who directed attention to its impor- tance as a remedial agent. He analyzed it and obtained an essential oil; two resins, alpha- and beta-resin kava ; and a neutral crystalline principle called kavahin, or methysticin, which is closely allied to piperine. The crystalline body exists to the extent of one per cent., but has been found inactive. The alpha-resin, which is obtained by means of alcohol, and is insoluble in water, contains the medicinal properties of the plant, and is thought by Lewin to be the active ingredient. It has, however, been shown that the watery infusion also is useful, and this would in- dicate that the virtues of the plant are not limited to the resin itself. At present the resin and the fluid extract, not miscible with water, are the preparations employed for medicinal p u r p o s e s. Kava-Kava has formed the subject of an exhaustive study by Dr. Cerna {Thera- peutic Gazette, January, 1891) who arrives at the fol- lowing conclusions regard- ing its physiological action: Moderate doses produce a stimulating effect, particu- larly on the central nervous ganglia ; in larger quantities it produces general autesthe- sia, and diminishes and ulti- mately abolishes reflex ac- tion by influencing the spi- nal cord, and probably also the spinal centres. The great muscular weakness observed is not due to any action on the higher cere- bral centres, as they main- tain their normal functional activity. Very large quan- tities depress the circulatory a n d respiratory systems, and, in poisonous doses, death is produced by failure of the respiration, or by car- diac paralysis. Placed on the tongue, it at first causes a burning sensation, which is followed by numbness and anaesthesia, which continue for some time and are accom- panied by a free flow of saliva. On the cornea and con- junctiva the same effect is produced. The local anaesthetic action is said to be equal to that of cocaine, but its use is restricted by the insolubility of the preparations in water. Kava-Kava is advocated as a remedy in cystitis, gon- orrhoea, and chronic inflammatory conditions of the mucous membrane of the urinary organs. It also pos- sesses a diuretic action, and has been used with success in dropsy. Its tonic and stimulating properties add to the (SUPPLEMENT.) general well-being of the patient, and increase its bene- ficial action. Its administration should be accompanied by copious draughts of water, which soon promotes a plentiful flow of urine which rapidly moderates the in- flammatory action and exerts a remarkably soothing in- fluence. This is followed by a lessening of the puru- lent and catarrhal discharges. The fluid extract is the most convenient preparation to use, and has been em- ployed with decided success. It may be given in doses of twenty to sixty minims three times a day, and has been combined with sweet spirits of nitre and glycerine when these are indicated. The alpha-resin is given in doses of one to one and a half grain, three times a day. A solid extract is prepared, the dose of which is two to six grains. The principle, kavahin, is not employed, as its therapeu- tic action and dose are uncertain. Beaumont Small. K1LRUSH AND KILKEE. Popular sea-side resorts in County Clare, Ireland. There are a number of ferru- ginous springs near these places. Kilrush is on the north shore of the estuary of the Shannon, and Kilkee faces the Atlantic Ocean. At the latter place there is a fine sandy beach. The climate of these resorts is on the whole good. It is decidedly bracing, and at times the westerly gales are trying. The amount of rainfall is not greater than the average for Great Britain. The accom- modations are rather primitive. There are many oppor- tunities for excursions on land and sea. Scattery Island is only one mile from Kilrush. Edmund C. Wendt. KISSINGEN. The principal features of this important German spa have already been described in Vol. IV. of Fig. 378.-General View of Kissingen. this Handbook. The writer has had occasion, on his sev- eral visits to the place, to gather abundant evidence as to the good results obtained there in suitable cases. It is, however, one of those resorts where it is by no means superfluous to remain under strict medical supervision while taking a course of the waters. Patients acting without professional advice are at times injured by the waters. Recently some needed sanitary reforms have been completed at Kissingen. The little town is now well drained and is supplied with good drinking water. It is so pleasant a place to spend a summer in, that many visi- tors now go there who *re not invalids. 564 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Joints. Knock-Knee. (SUPPLEMENT.) Kissingen has excellent facilities for all kinds of baths, inhalations, mechanico-therapeutics, massage, etc. There are also various private medical establishments, under supervision of competent physicians. Dr. v. Sohlern has a special sanitarium for the treatment of gastric disorders, and the results of treatment there are known to be often highly satisfactory. In regard to the brine baths, Dr. Thomas More Mad- den, after a recent inspection (7%<? Provincial Medical Journal, December 1, 1892), speaks as follows : " About a mile from the other springs, to the north of the town, rises the Soolensprudel. This well is contained within a handsome square building facing the river. The hall occupies the entire central part of the structure, and is lighted from the dome, while at each side differ- ent galleries run round. In the middle of this apartment is a raised structure, somewhat like an immense bee- hive, with glazed cover, about two feet high, beneath which is the Soolensprudel. The shaft of the well, seen through this cover, is about twenty feet deep by about eight feet in diameter, and seems to be lined with wood- work. Through the bottom of that shaft an artesian well was bored in 1822 to the depth of nearly three hundred feet in the sandstone, and this it is which now supplies the Soolensprudel. " This source presents a very remarkable phenomenon, namely, it intermits, or ebbs and flows, with great regu- larity, eight or nine times daily. If we arrive a little before the ' flow,' on looking down the shaft through the thick glass cap we see the well apparently empty of water ; we then hear a distant rumbling noise, which gradually becomes louder, and draws nearer, till in about half an hour from the time it was first heard, the water is seen foaming below ; it gradually as- cends, and in another quarter of an hour reaches within a few inches of the top of the well, covered with white foam, and hissing and seething with great turbulence. Above the water hangs a heavy layer of carbonic acid gas, rising and falling with it. This gas is collected and ingeniously utilized in various forms of gas baths. Indeed, the entire system of vapor, gas, and water baths in the establishment is extremely perfect. " Internally used this water is strongly purgative, and diluted, as from its strength it could not otherwise be drank, it is employed in the same class of cases as the other springs. It is, however, principally used for bath- ing, in rheumatic, neuralgic, and cutaneous affections. It acts as a powerful stimulant to the skin, producing red- ness and considerable irritation of the surface. From its close resemblance to sea water, having, however, in ad- dition, a small proportion of iron and a considerable amount of carbonic acid gas, it might, and perhaps even more advantageously than sea-water, be employed in scrofulous cases. The mother lye, or concentrated saline water of the Soolensprudel, is applied with wonderful results as a local application to scrofulous glandular swellings and similar affections." Physicians and their families are very courteously treated at this spa, and annually visit Kissingen in large numbers. The hotels are large, and many of them are quite modern in the provision of comforts. Edmund C. Wendt. KNOCK-KNEE. In the treatment of knock-knee by mechanical means two essential points must be insisted upon during the period of attempted correction of the deformity, namely, the patient must be kept off his feet, and the mechanical device must be applied with the knee in full extension, and be capable of constantly maintain- ing that position without motion at the joint. The dis- credit which has generally fallen upon the mechanical treatment of this deformity, and led to the employment of operative procedures, is due to the use of braces so constructed with a joint at the knee as to allow the patient to walk with a reasonable degree of comfort. Only when the knee is fully extended is the leverage action of any brace effective ; as soon as the leg begins to flex, the deformity becomes less, and, before flexion reaches a right angle, entirely disappears, and the feet can be brought together. This is due to the fact that the divergence from the normal relations of the condyles is more a longitudinal than an antero-posterior one. The divergence of the condyles from the normal may be either a shortening of the external, or an elongation of the in- ternal ; upon this relation depends the choice between the operations of Ogston and MacEwen in operative cases. If the internal condyle is considerably elongated and the external condyle of normal length, obviously Ogston's operation, which allows the split-off inner con- dyle to slip upward, is to be preferred to MacEwen's, which practically elongates the outer condyle without shortening the inner, by the gap at the outer side of the lower end of the divided femoral shaft. This deviation of the condyles from the normal should also be taken into consideration in choosing between the operative and the mechanical treatment; otherwise it may be found, when the deformity has been corrected, that one lower extrem- Fig. 379.-Elongation of Left Limb due to Correction of Knock-knee by a Brace. ity is considerably longer than the other, as in Fig. 379, and that the deformity resulting from the treatment is quite as serious as that for which the treatment has been employed. Unlike bow-legs, when the choice between mechanical and operative treatment depends upon the age of the patient and the rigidity of the bones, the choice in knock-knee depends upon the nature and loca- tion of the abnormality. In all cases the knock-knee can be corrected by a brace ; nevertheless, Ogston's op- eration is to be preferred if the deformity consists solely of great elongation at the internal condyle, and MacEwen's in those older cases where the shortening at the outer 565 Knock-Knee. Leprosy. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) condyle equals or exceeds the lengthening at the inner. A description of these operations will be found under their separate headings. The mechanical treatment con- sists of the application of some rigid splint, a simple form of which is represented in Fig. 380. It consists of a piece of flat bar-iron placed along the outer side of the limb, reaching from the greater trochanter to the sole, forged round at the bottom, bent at a right angle, and passed into a tube or hole in the heel of the shoe ; attached to this, at a point just above the malleolus, is a padded band of thin iron reaching two-thirds around the ankle; at the stimulating properties of this nut. It has been held in the greatest esteem from time immemorial, and is now looked upon almost as a vital necessity. It has been nat- uralized in other countries, and is Valued by the inhabi- tants of the West Indies, Brazil, Mexico, and other trop- ical countries. In addition to its ordinary use, it has acquired a reputation as a specific in counteracting the depressing and debilitating effects of alcoholic intoxica- tion. Experiments have been made with it in the French army which prove that it has decided stimulating proper- ties, but is in no sense a food, and any benefit derived from its use may be traced to the caffeine which it con- tains. The tree grows wild upon the western coast of Africa, from the Sierra Leone to the Congo, and reaches several hundred miles into the interior, where it follows the limits of the palm. It grows to the height of thirty or forty feet, and is said to resemble the chestnut in appear- ance. The leaves are six or eight inches long, pointed at both ends ; the flowers are pale yellow spotted with purple ; they are destitute of a corolla, but have a five-cut calyx, the segments spreading like the spokes of a wheel. The flowers are numerous, polygamous, in terminal and axillary cymose pannicles. In the male flower the sta- mens are united into a very short column, which bears the anthers in a single row, the cells of the anthers spreading apart. In the hermaphrodite flowers the an- thers are subsessile in a ring surrounding the base of an oblong five-celled ovary. The ovaries are five in number and cohere together, each having a slender stigma but no style. Ovules are numerous, anatropal, attached in a double row to the ventral suture of each carpel. The fruit consists of two, sometimes more, separate pods or follicles, which split open on the inner side and contain several seeds about the size of horse-chestnuts, weighing from seventy-five grains to an ounce. The covering of the seeds is brownish-yellow in color, the substance is a white mass of cells filled with starch and containing the alkaloids which give to the plant its medicinal properties. The tree commences to yield fruit about the fourth year, and is at its best about the tenth year. The flowering is nearly continuous ; and fruit and flowers may be present at the same time. There are two collections during a year, a tree averaging about one hundred and twenty pounds of fruit annually. Several analyses have been made of the seeds, with slightly varying results, but all point to the caffeine as the principle to which its virtues are to be ascribed. The following table compares its constitution with tea, coffee, and cocoa : Fig. 380.-The Thomas knock-knee brace. upper part of the thigh is a like band, and these bands are joined by a light bar of iron placed directly back of the middle line of the limb. At the top of the lateral bar is another padded band reaching about two inches to the front and an equal distance to the back of the lateral bar. The limb is bandaged to the splint by a figure- of-eight bandage, fixing the joint first to the poste- rior bar, and then laterally by passing the bandage around the limb and both bars. This corrected position is constantly maintained until the deformity is not only corrected, but remains so ; then jointed retention braces may be applied and joint motion permitted. John Ridlon. KOESEN. A popular spa in the Prussian district of Merseburg, Germany. Location.-Koesen is very prettily situated about six hundred feet above the level of the sea. The surround- ing country is hilly, and the little town is on the river Saale. The climate is mild, the air pure, and the scenery tempting. Season-May to September. Access.-Koesen is now reached by railroad by way of Naumburg. Analysis.-The Johanneequelle is a strong saline wa- ter. There is also a chalybeate spring, the Muhlbrunnen. Koesen is, however, chiefly known for the excellence and strength of its brine. Indeed, the principal spring, the Soolquelle, supplies so concentrated a brine, that it is necessary to considerably dilute it for bathing purposes. Indications.-Rickets and scrofula in all their varied manifestations are principally treated at Koesen. But many women with chlorosis and diseases of the organs of generation, and sufferers from gout and rheumatism, are benefited by the Koesen baths. Accommodation.-The hotels are small and only moderately good, but the thermal establishments are equipped with all modern appliances. Edmund G. Wendt. KOLA NUT. The seeds of the kola or cola tree, Cola acuminata R. Br., order Sterculaceae, a native of western tropical Africa. Kola is to the native of Africa what cocoa and mate are to the South American, and marvel- lous tales are told of the amount of work and fatigue that the African is enabled to endure when supported by the Cocoa (Mitscherlich' Coffee 1. (Payen). Tea Green. Black (Peligot). Kola (Heckel). Fat 53.00 13.00 0.28 .... 0.585 Proteid matters .. 13.00 13.00 3.00 2.80 6.761 Theobromine 1.50 0.023 Caffeine ' . 2.25 0.43 0.46 2.348 Essential oil . . 0.04 0.003 0.79 0.60 undet. Resin 2.22 3.64 Sugar Starch 0.56 1 f 15.50 ( 1 2.875 33.754 Gum 8.5S 7.28 3.040 Cellulose 34.00 17.08 26.18 29.831 Coloring matters.. 17.24 19.20 2.561 Coloring matters.. 5.00 2.22 1.84 1.290 Extractive 22.80 19.88 Tannin 17.80 12.88 1.618 Ash 3.60 6.697 5.56 5.24 3.395 Water 6.00 12.00 11.909 100.00 ioo.oo 100.00 100.00 100.00 The kola nut and its physiological action was treated in a thorough manner by Dr. Monnet in 1884, under the direction of Dr. Dujardin-Beaumetz, and an abstract of his thesis was published in the Therapeutic Gazette in the following year. The physiological and therapeutic action he sums up in the following conclusions : 1. Kola, by the caffeine and theobromine which it con- tains, is a tonic of the heart, whose pulsations it accel- erates, while it increases its power and regulates its contractions. 2. A second phase of its action, similar to that of dig- 566 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Knock-Knee. Leprosy. italine, proves it to be a regulator of the pulse, which revives under its influence, the pulsations becoming fuller and less numerous. 3. In consequence of its action upon arterial tension, diuresis is increased, and, consequently, kola can be em- ployed to good advantage in cases of dropsy with cardiac lesion. 4. It might be deduced from observation that kola, which acts energetically upon cardiac contractions, and upon the contractility of muscles of organic life, would, on the other hand, have a paralyzing ihfluence upon the striated muscles, when it is used in toxic doses. 5. It retards tissue metamorphosis and diminishes the excretion of urea resulting from decomposition of azotic substances, very likely by exerting a special action upon the nervous system. 6. It is a powerful tonic, through the principles which it contains, and its employment is indicated in cases of anaemia, in chronic affections associated with debility, and in convalescence from acute disorders. 7. It favors digestion, either by augmenting the secre- tion of the gastric juice (eupeptic), or by acting on the smooth fibres of the stomach, which it would render less atonic in cases of dyspepsia. Under its influence rebel- lious anorexia disappears and the digestive functions be- come more regular. 8. Finally, it is an excellent anti-diarrhoea remedy, and has rendered great service in chronic diarrhoea or sporadic cholera, although its action could not be explained physi- ologically. Further use of the drug indicates that it does not pos- sess any virtue that may not be ascribed to the alkaloids which it contains, and it has not secured a very firm foot- hold as a remedial agent. Its power to sustain fatigue has received more attention than its therapeutic properties. Among pedestrians and athletes its use has become very popular, and it is thought to prove very satisfactory to those who have used it. It has been suggested that the red substance that remains after the caffeine has been extracted by chloroform is a complex body, and exerts a peculiar stimulant action on the muscular and nervous tissues. A series of experiments have been made by E. Heckel (Repent, de Pharm., October, 1892), to compare the action of caffeine and kola rouge or kolanine, from which he concludes that the action of the latter on the heart is more prolonged and due to the presence of caffe- ine in a " nascent " state. Surgeon R. H. Firth publishes (Practitioner, July, 1889) some very practical observations made upon British troops and natives under his control, and concludes that it is in no sense a food, and that its physiological action is explained by the contained alka- loids ; when pure and not too old it has a peculiar stimu- lant action on the nervous system, temporarily strength- ens the heart-beat, and increases the arterial tension ; taken continuously during times of exertion and fasting, it pos- sesses some power of warding off the sense of mental and physical exhaustion. This power, however, is not so marked as some observers have reported; in the con- valescence from long sickness its value is not apparent, and its alleged antagonistic action to alcoholic sequelae is not capable of proof. As a therapeutic remedy it is of benefit in strengthen- ing the weak heart, augmenting the general flow of blood and vascular tension, and promoting diuresis. Its tonic effect has also proved of benefit in disturbances of the nervous system and debility of the cerebro-spinal centres, and in the prostration accompanying and following se- vere fevers and protracted illness. As a remedy for diar- rhoea, particularly of an atonic character, it has proved of decided value. The combination of the tannic acid and its tonic principles makes it of great service in this dis- order. The preparations advised are the alcoholic tinct- ure, the elixir, and the wine. The tincture is made by exhausting fresh kola with five parts of alcohol, and the wine by macerating the same proportions of kola in wine for a fortnight. The dose is from one to two or three tea- spoonfuls tliree times a day. The elixir is prepared by diluting the alcoholic preparation with equal proportions of syrup. Beaumont Small. (SUPPLEMENT.) KRONTHAL. A small spa in the Taunus district in Nassau, Germany. Kronthal is prettily situated near the wooded hills of the Taunus, not far from FranMort-on- the-Main. The springs are mild saline, chalybeate ones, and are very agreeable to the taste on account of the large proportion of free carbonic acid. The Kronthal waters are much exported and are quite popular as tonic bever- ages. The spa is well suited to the milder forms of anaemia, dyspepsia, and neurasthenia. Many invalids go there for a so-called "after-cure." The climate is mild and pleasant. There are good facilities for excur- sions, promenades, and out-door amusements generally. A fine thermal establishment has been recently erected, in which the usual hydro-therapeutic appliances are found, also baths, massage, sprays, etc. The nearest rail- road station is Kronberg, from which town Kronthal is reached in twenty minutes. Edmund C. Wendt. LEPROSY. Etioi ,ogy.-During the past five years the etiology of leprosy has received a great deal of at- tention, and the discussion has assumed somewhat of a public character. Among the most important contri- butions is that by1 Zambaco, of Constantinople, who has had during ten years two hundred cases under con- stant observation. Although he made a careful study into the personal as well as the family history of these cases, he has not been able to establish a single fact which would prove the contagiousness of the disease. He cites a number of cases of individuals who have lived in the closest contact with lepers and have not become affected. He believes that it is contagious in certain localities and in extremely rare cases. He adheres to the theory of hereditary origin. Dr. Heindiston2 has cited several instances illustrating the hereditary character of the disease. He mentions the case of a child of a leprous mother, deserted soon after birth, and brought up by perfectly healthy people in a district where leprosy was not known. At ten years of age early symptoms became manifest, and at fourteen she was admitted into the leper hospital. This case is quoted by Zambaco, and would therefore appear to be one of the best established instances of hered- itary origin. Dr. Danielsen has again affirmed that in his long ex- perience he has never met with a single case of contagion. Dr. Bevan Rake is doubtful as to the proof which has so far been produced in favor of direct contagion of leprosy. The question in his opinion is narrowed down to this : Can a healthy person more readily derive the bacillus from an infected human being, or from water, or from some host which contains the bacilli or its spores ? On the other hand, Hansen, of Bergen, thinks the theory of the hereditary transmission untenable. He made careful personal investigations into the history and condition of the descendants of one hundred and sixty Norwegian lepers who settled in the States of Minnesota. Wisconsin, and Dakota. He traced out the history of the children, grandchildren, and even the great-grandchildren, and was not able to find a single case of leprosy among them. Dr. Phillips, of Jamaica, is of opinion that the disease is communicable by contagion, and Dr. Saunders, of Jamaica, is of the same opinion. In the " Traitede Medecine," now being published under the direction of Charcot, Bouchard, andBroussais, the fol- lowing conclusions are given regarding the etiology of leprosy : " The sole cause of leprosy is contagion, that is to say, the transmission of its bacilli by direct contact with a subject affected with ulcerative leprous lesions, or by the medium of different bodies upon which leprous secretions have been deposited." Mr. Jonathan Hutchinson,3 in an article on the "Lep- rosy Problem," arrives at conclusions of which the fol- lowing are among the more important : 1. Leprosy is a well-specialized disease of which the bacillus of Hansen is the cause. 2. It is not modified by race, and it appears to have no allies. 3. It is not, for practical purposes, contagious. 4. It is endemic and affects both sexes. 567 Leprosy, Leprosy. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) 5. It may occui' at any age. 6. It is possibly hereditary. 7. It may be produced in immigrants or even visitors to leprous districts. 8. The poison which produces the disease gains access to the body in the form of food. 9. The evidence as regards the disease points to fish as being probably the article by which leprosy gains access to the human body. He gives as a reason for the latter theory that in a very large number of leprous districts fish is one of the prin- cipal articles of diet. To what conclusions may we arrive in view of the foregoing apparently contradictory opinions ? Now that there is a general agreement that the disease is produced by the bacilli of Hansen, one might think that we could more easily arrive at a satisfactory conclusion. The disease being of bacillary origin, must be com- municated either by heredity or contagion. If by the latter, the virus must be introduced either by inocula- tion, in food, or through the atmosphere. One cannot deny the possibility of hereditary trans- mission, although no instances have yet been reported which positively prove its hereditary character. The bacilli have never been found in the foetus or in newly- born children, as has been the case in tuberculosis. The cases cited by Zambaco and Heindiston are not conclusive, as in them the disease may possibly have originated in some other way. If Hansen in his investi- gations had discovered a single case in the descendants of the leprous immigrants in the Western States, where the possibilities of contagion were at a minimum, it would have gone a long way to prove that the disease may, at any rate occasionally, be transmitted from parent to child. There can be no doubt that a tendency to this disease is thus transmitted. It is not at all impossible that the dis- ease may be communicated in articles of food. That this is frequently the case is very doubtful. The inhabitants of the Hawaiian Islands used the same form of diet after as before the introduction of the disease. If the food or drink then contained the virus, the germs must have accidentally become incorporated with them. Dr. Arning, on a most careful examination of all the sur- roundings of patients, water, food, soil, etc., was unable to discover the bacilli in any of them. They have never been found in fish or any other article of diet, as the bacilli of tuberculosis have been found in milk and the flesh of animals. In the parishes adjoining Tracadie, in New Brunswick, the inhabitants are of the same race, live under similar conditions as to food and climate, and yet do not suffer from the disease. It is possible that further investigation into the subject may be rewarded by the discovery of the bacilli in other animals than the human being. The theory of conta- gion by inoculation, or by prolonged and intimate con- tact, seems to best satisfy all the facts. By this theory alone can the outbreak in Tracadie or in the Sandwich Islands be understood. The fact constantly brought forward of individuals liv- ing in the closest contact for a lengthened period with lepers, and remaining free from the disease, can be ac- counted for on the ground of natural immunity. We have instances of individual immunity in as contagious a disease as small-pox. It is true that leprosy appears to be but slightly con- tagious, and requires a soil which is only produced by certain modes of living, the use of certain food, and in certain races. It is also true that there are occasional cases of individual susceptibility in the most highly civil- ized races and in the highest classes of society. On September 30,1884, Dr. Arning inoculated a crimi- nal with fresh matter from a leprous tubercle. Local inflammatory action ensued which lasted six months and disappeared. In September, 1887, tubercular leprosy made its appearance, and the patient has since succumbed to the disease. Dr. Morrow, who visited the Sandwich Islands in 1889, excised some of the tubercles of this patient and found bacilli in them. Dr. Arning does not consider the case a positive proof that the disease originated by inoculation, as there existed other possible channels of infection. So far all attempts to inoculate animals have failed. Pathology.-Subsequent investigations have con- firmed the truth of the discovery of Hansen and Neisser. The bacilli are the active cause of the various lesions peculiar to the disease. Leloir4 gives in the following summary the differences between the bacilli of leprosy and those of tuberculosis : " The bacilli of leprosy are especially distinguishable from those of tuberculosis because in the colored sec- tions lepromes always maintain an immense quantity of bacilli, while tuberculomes always contain much fewer, and most usually they are very few in number." The size of the lepra bacillus is more uniform and more rectilinear than the tubercle bacillus (Cornil). They are shorter, thinner, and less pointed than those of tuberculosis (Hansen). The bacilli of leprosy are also more easily colored than those of tuberculosis. A much longer period is required to decolorize them by nitric acid. The tubercular bacillus colors only in alkaline coloring liquids ; that of leprosy takes color in neutral or acid coloring liquids (Neisser). For the purpose of dis- tinguishing, for example, the bacilli of leprosy from those of tuberculosis, if they occur together in an organ, the sections are colored with simple fuchsin for half an hour and decolorized with an acid. By this proceeding the lepra bacilli alone remain colored (Cornil and Babes). Dr. Thin4 has made a careful study of the question as to whether the bacilli are intra- or extra-cellular, and con- cludes that there is no evidence that the bacilli can live and multiply outside the cells. He thinks this accounts for the chronicity of the disease and the comparative rarity of contagion. Boinet6 arrives at the following conclusions with re- gard to the existence of giant-cells in leprous tissue : " There exist in the lepromes giant-cells like those of in- flammation and tuberculosis. They appear to be the result of an inflammatory process and in this particular case the giant-cells do not seem to exercise any distinctive action on the bacilli of leprosy. Of the various parts of the body the bacilli are most frequently found in the skin. The mucous membranes, except those of the large intestines, are generally exempt. The lymphatic glands are almost invariably affected. They are not found in the brain or spinal cord, but they exist in large numbers in the smaller branches of the nerves. Dr. Bevan Rake,6 who has made many valuable con- tributions to the study of this disease, has published the result of his inquiries into the connection between kidney lesions and the skin changes in leprosy. Out of forty-one cases of nephritis he found bacilli in but two. He also found that cases of kidney lesion ran a more chronic course than those of the other results or complications of leprosy. Dr. Schultze 8 has published the results of electrical and other examinations into the neuritis of leprous subjects. He found the same alteration of motor power and the same electrical reactions as exist in the neuritis arising from other causes. Diagnosis.-The diagnosis between leprosy and syringo-myelia was made the subject of a paper read by Dr. Morrow at the meeting of the American Dermato- logical Association, 1888, and has recently been studied by Marestang.8 The latter author has arrived at the following conclu- sions : 1. Leprosy and syringo-myelia are two distinct diseases. 2. Syringo-myelia is the result of medullary change (chiefly gliomatous), while anaesthetic leprosy is the result of neuritic changes 3. The points of distinction clinically are as follows : (a) In syringo-myelia there is loss of thermo-anaesthesia and analgesia, with integrity of the tactile sensibility. This disassociation of sensory conditions is not found in leprosy. (6) In syringo-myelia the surface muscles of the face are unaffected, there is absence of discolorations on the skin. 568 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Leprosy. Leprosy. and the hair remains normal, but there is deviation of the vertebral column. In leprosy tactile sensibility is abolished, and there are atrophy and paralysis of the muscles of the face, thicken- ing of the nerve-trunks from infiltration, the presence of light-colored patches on the skin, resorption of the fingers, excessive alteration of the nails, complete or partial loss of hair, and the presence of the bacillus of Hansen in the discharge from the ulcerative lesions. Zambaco,17 at the Academic de Medecine, Paris, 1892, expressed the opinion that Morvan's disease is a form of leprosy, as also is one variety of syringo-myelia. The writer could not gather from the discussion that the ba- cilli of Hansen had been found in either of these diseased conditions. Prognosis.-Several cases of cure, or rather cessation of the symptoms, have been recently reported : one by Dr. G. II. Fox, which will again be referred to ; Sandrec- zky 9 also mentions a case in which the lesions disap- peared ; finally, Dr. Kaurin gives the history of two cures, and Dr. Muro, of St. Kitt's, relates the history of one. The number of apparent cures, however, is small com- pared with the whole number of cases. The disease has therefore lost little of its dreadful fatality, notwithstand- ing the many new methods of treatment adopted. Treatment.-Dr. Unna, of Hamburg, in 1885, pub- lished a method of treatment and related one apparently successful case. He made external applications of pyro- gallol, chrysarobin, resorcin, and ichthyol, and gave ichthyol internally. From Dr. Thin's work I would infer that Dr. Unna's patient died in South America, whether from leprosy or not is not known. Dr. Duckman12 relates an advanced case of disease treated after Unna's method with apparent success. Ac- cording to Dr. Thin, however, the patient died in 1889, probably from leprosy. Dr. Duckman used ten per cent, pyrogallol ointment for the forearms and hands, and ten per cent, chrysarobin upon the other parts of the body except the face. On the latter he used a plaster of salicylic acid and creasote. Ichthyol was given internally. Dr. Blue, of New Orleans,13 has reported a number of cases treated according to Unna's method. He states that pyrogallol, resorcin, and salicylic acid were not at all satisfactory when applied to the face, but that they were useful on other parts of the body. He gave ich- thyol up to six grains a day with negative results. Dr. G. II. Fox 14 has reported a case of apparent cure in which the principal remedy used was chaulmoogra oil. The patient, a young man of New England parent- age, was born in the Sandwich Islands, and symptoms of leprosy having developed, he came to America, and after a time (1883) placed himself under Dr. Fox's care. Af- ter other methods of treatment failed he was put on chaulmoogra oil in gradually increasing doses, until he took sixty drops each day. In time the lesions gradually disappeared, and in 1885 he wrote to Dr. Fox from Cali- fornia : " There have been no more symptoms of the dis- ease in any shape. I have enjoyed almost perfect health in every way, and were it not that I still have numbness of the hands I would not believe that there could be any- thing the matter with me. I take about a hundred drops of the oil daily and it does not disagree with me." In 1887 and 1889 he reported himself as being quite well, and Dr. Fox has recently informed the writer (February, 1893) that the patient is still in good health. The favorable result, as Dr. Fox states, is largely due in this case to the change of climate as well as to the remedy used. Dr. Zariago (de Valence) gives chaulmoogra oil in large doses with decidedly beneficial results. He speaks highly of Unna's method of treatment in the early stages of the disease. Dr. Falcoo16 gives gynocardic acid in one decigramme pills with bitter extract. He begins with two pills daily and increases the number to twenty. At the same time he uses a pomade of gynocardic acid and vaseline. Gurjun oil has been used with apparent benefit by some physicians. The following quotation from the " Journal of the Lep- rosy Investigation Committee," January, 1890, will give in brief our present knowledge with regard to the action of tuberculin : " The authors consider that these dif- ferences (of reaction) prove for us, (a) whether an affec- tion is leprosy or tuberculosis, (b) whether at the time being leprosy is associated with tuberculosis, and (c) whether a suspicious tropho-neurotic disease be leprous or not. They observe that it remains to be seen whether the remedy can cure leprosy, produce a durable improve- ment, or prevent its further development." Tuberculin does not seem to have any positive effect in the cure of the disease. Dr. Hake has reported the case of a negress, in whom vaccination produced an amelioration of symp- toms. Several cases have been recorded where the presence of an intercurrent affection, such as erysipelas, pneumonia, etc., has exerted a favorable influence on the course of the disease. Prophylaxis.-From a brief survey of the literature one is impressed with the idea that leprosy has made considerable progress during the last five years. Dr. P. S. Abrahams 18 publishes the following state- ments with regard to some of the British Dominions: The disease is certainly on the increase at the Cape of Good Hope. The number of cases has increased in the Trinidad Asylum, as shown by Dr. Bevan Rake. The total number of cases in the Barbadoes has in- creased from 96 in 1871 to 120 in 1881. In New Brunswick there has been a slight diminution. The disease has appeared in British Columbia, but is limited, as Dr. Milne, of Victoria, informs me, to the Chinese population. The present number of lepers in the United States is placed at about two hundred, a decided increase. Zambaco makes the following suggestions as to pro- phylaxis : 1. All cases of the disease to be placed in a special hos- pital, where they can receive proper attention and medi- cal treatment. 2. To prevent marriage in all cases where the disease is present or even suspected. 3. To improve the character of the food and surround- ings of the people. 4. To carefully inspect and supervise the children of leprous parents. Dr. Bevan Rake, who, with Zambaco, is still sceptical on the subject of contagion, also recommends isolation. It will thus be seen that in the prophylaxis of the dis- ease there is a unity of opinion between the contagion- ists and non-contagionists on the importance of the com- plete separation of the diseased from the healthy. During the past five or ten years much progress has been made in this direction.19 In 1884, the government of the Cape of Good Hope passed a Leprosy Repression Act. In Norway, segregation was made compulsory in 1885. Under an act to facilitate the segregation of lepers in the Hawaiian Kingdom, 821 lepers had been removed to the asylum, between July 17, 1887, and March 12, 1889. For some years in New South Wales lepers have been kept in a lazaretto near Sidney, and quite recently a bill has been passed by the New South Wales Legislature to empower the authorities to compulsorily segregate lep- ers.19 In San Francisco also a stringent act has been adopted. In many parts of the world, however, as Dr. Thin ob- serves, great carelessness is still shown in this matter. James E. Graham. 1 Bulletin Acad, de Med., Paris, 1889. 2 Loc. cit. ' Archives of Surgery, 1889. 4 Dr. Thin : Leprosy. 1892. 5 British Journal of Dermatology, 1888-89. 8 De la Cellule geante dans la Lepre, Revue de Medecine, Paris, 1891, pp. 339, 344. 7 Van Harlingen: Internation. Clinics, January, 1892. 8 Deutsche Archiv fiir klin. Med., xliii., 4 and 5. 9 Du diagnostic differentiel de la lepre anaesth6sique et de Syringo- myelie. Revue de Medecine, 1891, p. 781. 10 Monats. fiir prakt. Dermat., 1891. 569 Leprosy. Lungs. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) u Ibid.. 1885. i2 Ibid., 1888. 13 New York Medical Journal, 1889. 14 Transactions of the Medical Society of the State of New York, 1890. 15 International Dermat. Congress, Paris, 1889. i' Ibid., 1889. 17 Zambaco : Le Mercredi Medicale, August, 1892. 18 London Practitioner, 1889. 19 Dr. Thin : Leprosy, p. 245. goes by the name of " Wiesbaden Gichtwasser " and is pre- pared by putting extra quantities of bicarbonate of soda and lithion into the natural Wiesbaden Kochbrunnen. The patient takes about a quart of this water per diem, in divided doses, and with excellent results, as has been proved by recent statistics. The following analysis of the Wiesbaden Gichtwasser has been published : One thousand grammes of the water contain : Natr. bicarbon 7.500 Natrii muriatic 6.828 Calc, bicarbon 0.266 Magnes, bicarbon 0.177 Lith. chloric 0.023 Potass, chloric 0.182 Carbonic acid 9.296 These are the principal ingredients of the water, and the therapeutic effects of the same are mainly produced by the relatively large amount of the soda and salt, and to only a small extent by the other salts. That an alkaline water thus prepared and drank in sufficiently large doses daily, and for a considerable period, will prove of excel- lent effect in gout and uric-acid diathesis I am ready to testify to from the observation of a large number of cases of that kind. The well-known Selters, Vichy, and Fa- chingen waters can readily receive additional quantities of soda and salt to bring them up to the required standard of about 3 ij. of each salt to a quart of water, and will then serve the same purpose as the Wiesbaden water. Leonard Weber. LLANDUDNO. A modern and fashionable watering- place in Wales. The climate is good, owing to its shel- tered position. It is more of a summer resort and sea- bathing place than a recognized winter station. It is situated under the promontory of the Great Orme's Head, and extends for over a mile along the shore, between the bays of Conway and Llandudno. The sanitary condi- tion of the settlement is good, the rate of mortality being about nineteen per thousand per annum. The winds com- ing over the water are generally tempered, but violent cold gales at times keep all invalids indoors. Dr. Yeo ("Climate and Health Hesorts ") speaks of this place as follows : " Llandudno has pretensions also as a winter resort, especially for invalids who can support a certain amount of windy weather. Its annual rainfall-32.36 inches- is somewhat below the average rainfall of England and Wales, which is 35 inches. The mean humidity of the air in winter is 82', so that it has a drier winter atmos- phere than some of our southwest coast resorts ; this is partly due to the porousness of its subsoil, which is mostly gravel and sand. " During the five winter months (November to March), from observations extending over live years, it would appear that the mean winter temperature is 43.5° ; the mean maximum, 48.3°; the mean minimum, 38.8° ; the mean daily range, 9.5°; the mean monthly range, 28.3° F. North and east winds blow on 44 days, south and w'est winds, 107 days. There were 83 rainy days, and a rain- fall of 15.96 inches. "Nothing, perhaps, could show better the character of our (i.e., the English) winter climate than the fact that a place claims to have attractions as a winter resort, where, on an average of five years, there have been eighty-three wet days out of one hundred and fifty-one- more than one-half ! " Llandudno is twm hundred and thirty-six miles distant from London. The hotel accommodation is good, and the usual amusements are provided. The drinking-water is said to be excellent. There is a fine sandy beach. Edmund C. Wendt. LOSOPHANE (Tri-iodo-meta-cresylic acid). A new antiseptic preparation, obtained by the action of iodine upon oxy-toluylic acid in the presence of an alkali. Its formula is CeHLOHCHs, and it is said to contain eighty LEVULOSE (C6H12O6.). This form of sugar has, within the past year, been advocated as an article of diet for dia- betic patients. Its administration does not augment the amount of sugar in the urine, as it is thoroughly oxidized in the system, and acts as food by building up the body and supplying vital energy and strength. A preparation under the name of Diabetin has been placed in the mar- ket, which is said to be a perfectly pure levulose. It is a dry crystalline powder, easily soluble, and possessed of a remarkably sweet taste. Levulose exists in honey and in most fruits and vegeta- bles. It may be formed from cane sugar by heating with dilute acids, and is also produced by the action of yeast on pectase, the ferment peculiar to fruits. It is distin- guished from the ordinary forms of sugar or dextro- glucoses by its property of turning the plane of polariza- tion to the left, laevo-rotation, from which its name is derived. It generally exists with dextro-glucose, and is with difficulty obtained pure. It exhibits the same chem- ical reactions as other sugar, but is more easily altered by heat aud acids. A large percentage of dextro-glucose may be present without altering its rotatory action, as its power of polarization is much greater than that of the dextro-rotatory sugar. Beaumont Small. LIPANIN. A fatty compound formed by the addition of five or six per cent, of oleic acid to fine olive-oil. It has been proposed by Von Mehring as a substitute for cod-liver oil. Its use was suggested by the theory of Buckheim that the beneficial action of cod-liver oil was due to the fatty acids it contained. The proposed sub- stitute is more palatable and is easily retained by the weakest stomach, and when desired may be readily formed into an emulsion. It is freely absorbed, and un- doubtedly is a nutrient of some value. No diarrhoea or intestinal disturbance has been traced to its use. The dose for children is one teaspoonful before meals; for adults, one tablespoonful. Beaumont Small. LITH/tMIA. In the treatment of the uric-acid variety of lithaemia, the so-called uric-acid diathesis, as well as in true gout, piperazine has been extolled and freely adver- tised, in 1892, as a specific for that disordered state of the system. The remedy, a whitish powder of pungent taste, is prescribed in five-grain doses dissolved in carbonic- acid water, with or without bicarbonate of soda, and given three or four times in twenty-four hours. I have found it to be a fairly good palliative for an acute attack of gout, but a specific by no means, nor as good as Laville's liqueur antirheumatique, the active principles of which are colchicine and colocyntine. Laville's preparation I have often prescribed for acute attacks of gout, and found that twenty to thirty drops taken every three hours during the day, for a week at most, afford quick relief, and remove all acute symptoms effectually in almost every case. In cases of uric-acid diathesis neither La- ville's liqueur nor piperazine is ever indicated, but the plain and cheap bicarbonate of soda, with a little lithion and chloride of sodium, is all that is required when the patient needs a mineral water. Of German observers Dr. E. 'Pfeiffer, Dr. Mordhorst, of Wiesbaden, and Professor Ebstein, of Gottingen, have studied the question of gout and lithaemia, and the proper diet and medication for those affiicted with these disorders, and have written probably more about it of late than anybody else. The Wiesbaden doctors particularly, who undoubtedly see and treat a great many gouty pa- tients, have apparently proved that bicarbonate of soda is the remedy of all others which will promptly dissolve, and effectually keep in solution, the uric acid. They order now their patients to take it, dissolved in a mineral water that 570 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Leprosy. Lungs. per cent, of iodine. It forms in white needles, insolu- ble in water, slightly soluble in alcohol, and readily soluble in ether, benzene, and water. At 140° F. it is freely soluble in fatty oils. It is particularly recommended in parasitic skin affec- tions. It may be used in tinea tonsurans, scabies, pity- riasis versicolor, also in prurigo, in chronic eczema, acne, and sycosis. It is contra-indicated in all acute in- flammatory conditions of the skin, as it is liable to in- crease the irritation and intensify the disease. The remedy may be applied in solution of the strength of one per cent., or in an ointment of one to three per cent. Beaumont Small. LOWESTOFT. A popular seaside resort on the Nor- folk coast. It is situated on the most easterly point in England, at a distance of about ten miles from Yar- mouth. The beach is much used for bathing, although it is only partly sandy and in part shingle. The little town is prettily built on the cliffs overlooking the sea. The air is claimed to be particularly pure and bracing at Lowestoft, but the place does not escape the humidity and abundant rainfall common to English resorts. The drinking-water is good, and the sanitary arrangements satisfactory. The death-rate is about eighteen per thou- sand. The hotel and boarding-house accommodation is moderately good. Edmund C. Wendt. LUNGS, ANATOMY OF THE. Historical.-The first account we find of the structure of the lungs is that given by Hippocrates,1 and is very incomplete. He com- pares them to a sponge interspaced with numerous small vessels. Aristotle2 also gives to the lungs a spongy nature, the canals receiving blood from the great vein. Celsus3 also describes the lungs as being spongy. Galen4 had but little better idea of their structure ; he describes them as being made up of lobes, liver-like in substance, and containing many vessels. Vesalius5 describes the lungs as being divided into lobes, and says in regard to their structure that " the substance of the lung is soft, spongy, thin, light, airy flesh, as if formed of frothy blood, or bloody froth, and crowded with many branches of vessels." We now come to the time when Harvey6 announced his discovery of the circulation of the blood ; this had its effect on all anatomical research. Malpighi,7 profiting by this discovery, proved by means of injections that the air and blood were not contained in the same channels, but had separate systems of vessels, and that these did not commu- nicate with each other, but did communicate among themselves. He also saw the circulation of the blood in the vessels of the lung of a living frog. He recognized the presence of air-vesicles, and described them as opening into the trachea and communicating with one another. He also compares the lung to a sponge. Bartholin 8 defended the views of Malpighi. The next writer of note is Wil- lis.9 He is wrongly quoted by Williams in Todd's " Cy- clopaedia ; " he places Willis among those who describe the air-vesicles as communicating with one another. What he does say, directly opposite to the view of Mal- pighi, is, that the bronchial tubes give off numerous small branches which bear on their distal extremity little blad- ders, thus giving the lung the appearance of a bunch of grapes. Helvetius 10 returned to the older idea and main- tained that the lung was spongy in its nature. He de- nied that the spongy tissue of the lung was formed by the expansion of the bronchial tube, but asserted that the bronchus simply penetrated into the spongy tissue. His description of the lung is not very clear. Soemmering11 describes the lungs as made up of small, irregular polygo- nal cells grouped together into lobules. The cells of the lobule communicate, but those of one lobule do not com- municate with those of adjoining lobules. Early in the present century, Reisseissen 12 published a very important paper, in which he advanced views quite opposite to those accepted by the anatomists of his day. His method consisted in pouring mercury into a bron- chus and, by applying gentle pressure, forcing it on until it appeared beneath the pleura. He describes the bron- (SUPPLEMENT.) chi as dividing into branches which in turn divide quite rapidly, becoming at the same time much small- er, until eventually each small branch ends in a single rounded extremity. This was apparently a revival of the theory of Willis. Magendie 13 wrote two important papers on the lungs. In the first he denies that the bronchi terminate in air-vesicles, but affirms that the air-cells of one lobule communicate with one another, but do not communicate with those of adjoining lobules. In his second paper he states that those grape-like structures described as hanging on to the end of a bronchus do not exist in nature, but are to be found only in books. His conclusion is that the lung is made up of " spongy tissue formed by the arrangement of the vessels, which have between them small spaces into which the air pene- trates freely." In 1832 Bazin14 wrote supporting the views of Reiss- eissen, and was followed a few years later by Lereboul- let,15 who in quite a lengthy essay also supported Reiss- eissen. Addison 16 failed to find "any tubes ending in culs-de-sac ; on the contrary, I always saw air-cells com- municating -with one another in every section I made." He describes the bronchi as dividing, within the lobule, into numerous minute branches which terminate in "branched air-passages and freely communicating air- cells." Huschke,17 however, writing about the same time, described the bronchi as ending in fine branches, which bore on their free extremity small sacs which did not communicate with one another. Rainey 18 wrote several excellent memoirs on the lung. He says " they are made up of bronchial tubes, bronchial intercellular passages, and air-cells." These air-cells com- municated with one another, and with the bronchi or bronchial intercellular passages, by means of large circu- lar openings. Moleschott19 published an excellent bro- chure in which he combats strongly the opinion of those who hold to the communication of one vesicle with another. In no instance did he find the bronchi forming anastomoses ; he also distinctly states that the air-vesicle contains no opening except that by which it communi- cates with its proper bronchial tube. Rossignol20 gave us a very valuable treatise on the structure of the lungs. He introduces the term "infun- dibulum." According to this author the bronchi give off numerous branches which cross each other repeatedly in all directions, but do not communicate ; from the ultimate division of the bronchial tube arises a dilatation in the form of a funnel, which he terms " infundibulum." The walls of each infundibulum are lined with numerous air- cells or alveoli. Rossignol compares each infundibulum with its alveoli to the lung of the batrachians, and says : " The human lung looked at from this point of view can be defined as the assemblage or concentration of innumer- able small lungs, held together by means of a common bronchial tree." In an inaugural dissertation written by Adriani,21 he adopts the nomenclature of Rossignol. He also describes alveoli as existing on the walls of the bron- chial tubes just before they dilate into infundibula. He takes strong exception to Rossignol's statement that there are no communications between adjoining alveoli, declar- ing it to be without doubt false, and describes minute openings by which adjoining infundibula communicate. Kolliker 22 gives quite a valuable description of the finer structure of the air-passages. He considers the term "infundibulum" introduced by Rossignol unnecessary, and says, that "all the vesicles belonging to one lobule open, not into ramifications of the finest bronchial twig going to it, but into a common space from which the air- vessel is afterward developed." The " Cyclopaedia of Anatomy and Physiology" * con- tains an article on " Respiration " by Williams, in which he has embodied some of his personal investigations. He describes each lobule as being sacculated and receiv- ing a single bronchial tube ; this tube gives rise within the lobule to small branches which subdivide to the third or fourth order, and from these latter branches the air- * The Cyclopaedia of Anatomy and Physiology. Supplementary vol- ume. London : Robert B. Todd, editor. 571 Lungs. Lungs. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. cells arise. He discards the term " infundibulum," and uses in its place that introduced by Rainey, " intercel- lular passage." Mandi 23 describes the bronchial tubes as ending in terminal cavities which have numerous de- pressions in their walls, the "vesicles." He compares the terminal cavities and their vesicles to the lung of the frog. In 1860, Waters 24 published a most excellent essay on " The Human Lung," in which he describes the " ulti- mate pulmonary tissue " as being made up of elongated air-sacs arranged in groups, called by him " lobulettes," which spring from the enlarged end of a terminal bron- chial twig ; the air-sacs bear on their sides and ends de- pressions varying in number, the alveoli. He failed to find any communication between the air-sacs. On this point he says, " I have never found, either in the lungs of man, or of the dog, or cat, or pig, or sheep, or of any other mammal I have examined, any lateral orifice of communication between the different sacs of each lobu- lette." Henle,25 in his systematic work on anatomy, gives a very good article on the lungs. He describes com- munications between air-cells, but considers them anom- alies. He found them in the lungs of old people, and attributed them to the result of atrophy and absorption of the lung-substance. Delafield26 advocates the theory of communication between air-cells. He says : " The air-passages seem to be made up of a succession of large vesicles which open into each other, or of an irregular larger canal made up of vesicles into which other vesicles open from all sides." He also describes anastomoses between the air-passages. Roosevelt27 agrees with Dela- field in regard to the communication of the air-cells. In other places 281 have described some of my own re- searches on the lung. Besides the authors quoted at length, I will refer the reader to the works of Milne-Edwards,29 and to that of Ewart.30 Those who are interested in the development of the lung should not neglect to read the article by His.36 General Histology.-For the structure of the tra- chea I will refer the reader to the text-books on anatomy, mentioning especially Quain (tenth edition). At the hilus of the lung we find the artery, vein, and bronchus lying in quite close apposition, and it is only at this point that we find them in such close relationship. The arrangement differs on the two sides ; on the right side the bronchus lies behind, the artery in the centre, and the vein on the outside ; the bronchus occupying a higher level than the other two vessels. On the left side the vessels have the same order, but the artery occupies the higher plane. Taking up now each set of vessels, we will consider first the bronchus. About on the level of the fifth dorsal vertebra the trachea bifurcates into the right and left bronchi, which pass to their respective lungs. Of these two bronchi the right is the shorter and wider, and is usually described as having a more horizontal direction than the left. Aeby,31 in his admirable monograph, has shown, how- ever, that it is the more oblique. The left bronchus is longer, but at the same time smaller in diameter, than the right ; its lower termination being about twenty-five millimetres below that of the right bronchus. The shortness of the right bronchus is due to the fact that, just before it penetrates into the depth of the lung, it gives off a branch which supplies the upper lobe of the right lung. This branch is given off above the point where the pulmonary artery crosses the bronchus on its way into the lung. On the left side we find no corre- sponding branch in man. Below the point where the pulmonary artery crosses the main bronchus, the arrangement of the bronchi is quite similar on each side. This peculiarity of the bronchi leads to the formation of three lobes for the right lung, but only two for the left lung. Aeby calls those that branch above the point where the artery crosses, eparterial ; those below, hyparterial bronchi ; he reasons that as the eparterial bronchus is not present on the left side, the lobe to which it is distributed is also absent, and (SUPPLEMENT.) that the upper lobe of the left lung and the middle lobe of the right lung are homologous. Occasionally in man the eparterial branch arises directly from the trachea ; this point of origin is constant in sheep and in the ox. Some of the lower animals possess eparterial branches on both sides, and in others no eparterial branches are found. Monkeys have an accessory lobe, termed by Owen 32 the azygos lobe ; this is supplied by an acces- sory bronchus, which arises from the right bronchial trunk near the point where the first branch is given off. Immediately after penetrating into the lungs the bron- chi undergo division, not in a dichotomous manner; neither is the arrangement axial, but rather arborescent. Aeby,31 by his investigations, proved conclusively that the old idea of dichotomy was erroneous ; and while at first I was inclined to the view of an axial arrangement, more careful investigation of the subject satisfied me of the untenableness of this view. The bronchi, in their finer structure, have the same arrangement as the trachea up to their entrance into the lung. With the division of the bronchi we find changes in the structure. The cartilage which has been in the form of incomplete rings is now found in the form of angular plates, which are placed at longer and longer in- tervals, until at last it is only found as a small plate at the fork of the smaller branches. Bronchi which have a diameter of one millimetre, and under, have no carti- laginous plates. At the same time that the cartilage be- gins to disappear, the smooth muscle-fibres which have been in the form of rings gradually spread out into an uniform layer, which diminishes in thickness with the diminution in the calibre of the bronchus. Beyond the terminal bronchus the muscle-fibres are not found. In the larger bronchi the mucosa is arranged in longitudi- nal folds and consists of at least two layers, the inner- most of which is made up of ciliated epithelium and scattered goblet-cells. In the finer bronchi these disap- pear, and we find in their place a single layer of respira- tory epithelium. Outside the cartilage, and extending the whole length of the bronchi, there is found a layer of connective tissue which forms a sheath surrounding the bronchi and contains elastic fibres, and in which the ves- sels and nerves run. When the divisions of the bronchus have reached a diameter of about 0.5 mm. they break up into the proper parenchyma of the lung. The last division of the bron- chus before this breaking up takes place is called the terminal bronchus, and it forms at the distal extremity a club-shaped cavity. At this point the structure of the lung changes, and what lies beyond this has been a much disputed point, as I have shown in my account of the history of the sub- ject. As a preliminary description, I will quote the fol- lowing from a previous paper :28 " The last division of the bronchus, before breaking up into the parenchyma of the lung, is known as the terminal bronchus, and from this arise a number of passages which widen out into an ex- pansion. From this other passages lead out which open into a central cavity set about with small irregular cells. A good idea of this arrangement may be obtained if we compare it to a Pompeian house. The passage leading off from the terminal bronchus is the ' vestibulum,' w'hich opens into the 'atrium.' From this arises the ' faux ' or air-sac passage, which leads into the ' peri- stylum' or air-sac. This air-sac is set about with ' cubicula ' or air-cells. " From this description it will be seen that the air-sacs do not communicate directly with the terminal bronchus, as is usually described, but between each air-sac and ter- minal bronchus there is a cavity constant in all parts of the lung, which I shall term atrium. The communica- tion between the atrium and the bronchus I shall call vestibulum ; that between the atrium and air-sac, air- sac passage, or, simply sac-passage." (Fig. 381.) The terminal bronchi do not have a smooth cylin- drical surface, but we find projecting from all por- tions small cells (Fig. 381), the air-cells of the bronchus, which have an average diameter of 0.047 mm. The opening by which these cells communicate with the 572 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Lungs. Lungs. ■bronchus is surrounded by the smooth muscle-fibres lin- ing the bronchus. In a section of the lung the terminal bronchi may be recognized by their diameter, by their walls being thicker than that of the surrounding paren- chyma, by the presence of smooth muscle-fibres, and by their having a lining of cylindrical epithelium. Leading out of the dilated end of the terminal bron- chus we find from three to six openings, the vestibules. These are circular in outline, or nearly so ; they are sur- rounded by the muscle-fibres which line the bronchus, and have an average diameter of 0.2 mm. These open- ings do not all take the same direction ; usually one of them appears as if it were a continuation of the bronchus, while the others open out at various angles or may take a course nearly recurrent to that of the bron- chus. As these openings are surrounded by smooth muscle, should the section lie in such a plane that we look directly into a vestibule, it will appear as a quite small terminal bronchus, but can be distinguished from one by its size. I have already stated that the smooth tain a mass which cannot he pulled apart ; if now we break off a small portion from the completely injected part and pick it to pieces under a dissecting microscope, we may obtain casts of the atria which present several freshly broken surfaces. These indicate the points of at- tachment of the air-sacs, and also their attachment to the bronchus. The presence of these broken surfaces has been misinterpreted by a recent writer, and used as an argument for the communication between air-sacs. That such is not the case will, I think, be readily understood from the above description. In Fig. 382, I have represented a terminal bronchus to which are attached five atria. The air-sacs communicat- ing with them have been removed. The specimen was prepared by cutting a small block from the lung of a dog (treated by the corrosion process) into serial sections, and then reconstructing by Born's33 method a terminal bron- chus and the parts attached to it. Two models were made, in one of which the air-spaces were cut out and the plates piled together. This gave an exact model of the air-spaces. At the same time the plates were piled to- gether the pieces cut out were piled also, and I thus ob- tained the second model-a "corrosion" of the first. It is this corrosion deprived of its air-sacs that is figured. The sections were cut 20 n thick, and the power used was one hundred diameters. The air-sac passages connecting the atrium with the air-sacs are somewhat smaller than the vestibule, having an average diameter of 0.143 mm. The air-sac passages (Figs. 382 and 383, P) can always be distinguished from the vestibule by the absence of smooth muscle-fibres. The air-sacs present a great diversity of forms ; they are very irregular and adapt themselves to the space they have to occupy. As seen in sections of the lung, they vary in diameter from 0.313 mm. to 0.511 mm. Fig. 383 shows a corrosion model, prepared in the same manner as Fig. 382, of an atrium with a single air-sac attached, the others having been removed. Fig. 384 shows an air-sac removed from its atrium ; the irregularity of form is well shown. Some air-sacs have a deep partition extending into them, nearly divid- ing them into two. The irregular contour of one air-sac fits into corresponding irregularities in adjoining air-sacs, making it impossible to pull complete wax or Wood's metal corrosions apart. The walls of the air-sacs are quite thin, and are made up principally of the capillary network of the blood-vessels and connective tissue. Mall35 has shown the presence of " reticulum " in the walls of the air-sacs. In sections of lung lying parallel with, or perpendicular to, the pleura, the large irregular- shaped openings bounded by thin walls are the air-sacs. The small openings grouped about them are the air- cells. The air-cells are about one-fourth the size of the air- sacs ; their walls are thin and have the same structure as those of the air-sacs. Air-cells are found in three situa- tions : arising from the bronchus, from the atrium, and from the air-sacs (Fig. 385, C). Those arising from the air-sacs are the more numerous, the entire periphery of the air-sacs being covered with them. The air-cells arising from the air-sacs and atria have the same average diameter of 0.113 mm., while those air-cells which are found on the bronchus are smaller, having an average diameter of 0.047 mm. It is not uncommon to find in sections made parallel to the pleura that the plane of the section is such that it di- vides longitudinally as a vestibule opening into an atrium, and in rare instances it may pass through all the parts. Fig. 381 is an example of such a section. Usually, it is quite difficult to determine the atria and air-sacs, unless we have a complete series of sections to examine. I have already mentioned several points of distinction, but for general purposes attention to the following points will help one to decide: The bronchi may be recognized by their containing smooth muscle-fibres, and by their diameter ; lying in more or less of a circle about the bronchus may be seen three, four, or five openings, nearly circular in outline and separated from the bronchus by a number of smaller openings ; the first are the atria, the Fig. 381.-Camera Tracing of a Section through the Terminal Bron- chus, Atrium, and Air-sac. Enlarged about 65 diameters. 13, terminal bronchus; A, atrium ; S, air-sac ; K, vestibule : P, sac-passage ; C, air-cells arising from terminal bronchus, atrium, and air-sac. muscle-fibres do not extend beyond the terminal bron- chus. That this ring surrounding the openings of the vestibules is the last found is shown in sections which lie in such a plane that a vestibule is cut at right angles. In such a section we find the bundles of muscle-fibres cut transversely, lying on either side of the mouth of the vestibule, but not in the least entering into the formation of the walls of the cavity lying beyond. The cavity into which the vestibule opens I have called the atrium (Figs. 381, 382, 383, 385, A). This is irregularly spherical in shape, about half the size of a terminal bron- chus, and has leading out from it three to six openings ; of these, one is that of the vestibule, and the remaining openings lead into the air-sacs with which it communi- cates. There are also numerous projections from its surface, the air-cells. The walls of the atrium differ in no respect from those of the air-sacs. If we make a complete injection of the air-passages with wax and corrode in hydrochloric acid, we shall ob- 573 Lungs. Lungs. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) second are air-cells. Lying peripheral to these may be seen large irregular openings, the air-sacs, and grouped around each a number of smaller openings, the air- cells. A much disputed ques- tion in the histology of the siderable period the question was vigorously discussed on both sides ; but gradually the view that there were no communications prevailed. The two most recent writers on the subject in this country, however, have returned to the old view of communication. I cannot agree with them on this point, for both comparative study and re- construction of the mammalian lung show the contrary to be true. In studying the lung from a compara- tive standpoint, we find that the sim- plest form is found in the Proteida. The specimens I have used for exam- ination have all been obtained from Necturus maculatus, the common mud- puppy of the Mississippi Valley and the great lakes of the West. The lungs in this animal consist of two elongated, cylindrical-shaped bodies, smooth on the outer and also on the inner surface ; they have both an arterial and venous supply, the ultimate distribution of which is so arranged that the course of the vein is nearly at right angles to that of the artery. Passing on now to Anura, we find in Rana catesbiana that the lungs are two thin-walled ellipsoid sacs, terminating posteriorly in bluntly-pointed ends. The inner surface is crossed by large bands, which, extending into the central cavity, form a coarse network ; between these bauds smaller bands are found which also form a network, thus giving the lung a honeycombed appear- ance. Between the lung of Necturus and that of Rana all grades of division of the inner surface may be found. In Ophidia, the lung (for they possess only one, the right) is much elongated; the posterior two-thirds is perfectly smooth, externally and internally, but the anterior third of the inner surface becomes more and more subdi- vided, until we find in the anterior sixth that we have the inner surface divided into many small air-sacs, which com- municate with the central cavity by a nearly circular opening. If we look down into one of these sacs with a low-power lens, 10-20 diameters, we shall see that each sac is divided into a number of shallow depressions, the air- cells. A careful examination of specimens prepared by cutting open previ- ously blown-up and dried lungs, and sections of h a r d - ened s p e c i m ens, failed to show any communication be- tween neighboring air-sacs. | Thus far the' lungs we have ex- amined have con- sisted of a large cen- tral cavity, having its wall either smooth or beset with larger or small- er cavities, which possess a more or less complex structure. The bronchus has entered the ante- rior end of the lung, but has not extended into its interior. There have been no partitions across the central cavity and extending the entire distance, dividing the lung into independent cavities. In Heloderma suspectum, one of Fig. 382.-Reconstruction Corrosion of a Terminal Bronchus with Five Atria Attached. Enlarged 100 diameters. A. atria ; B, bronchus ; P, sac-passage. The three atria which have no special letter attached are easily made out by the cut surface of the sac- passages. lung is whether there exist communications between the air-sacs. As I have shown in my brief account of the His- tory of the sub- ject, the opin- ion of the older authors was that such com- munication did exist. For a long time no one doubted the point; then it was denied, and for a con- Fig. 383. - Reconstruction Corrosion of an Atrium, with a Single Air-sac At- tached. E n 1 a r g ed 100 diameters. A. atrium ; 5, air-sac ; P, an air-sac pas- sage divided transversely ; V, vestibule divided trans- versely. The atrium in this Figure is the same as the one in the upper left- hand corner of Fig. 382. Fig. 384. - Reconstruction Corrosion of an Air-sac, Showing the Irregularity of Form. Enlarged about 50 diameters. 574 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Lu ngs. Lungs. the Lacertilia, we find the central cavity divided by par- titions which extend across the entire distance, dividing the lung into larger or smaller cavities, which are in their1 turn subdivided into smaller spaces, just as we saw in the frog's lung. The surfaces of these partitions are also covered with fine bands which divide them into small cells. The bronchus enters the lung at the inner and upper sixth, and terminates in the partition which divides the posterior cavity from those in front of it. It occupies very nearlv a central position. Lateral openings, more or less oval in shape, are found in the wall of the bron- chus ; these communicate with the different cavities. This opening is the only one which opens into any single cavity. Nowhere do we find an opening through the partition wall. The only medium of communication be- tween one air-sac and another is that of the bronchus. The posterior sac which occupies the entire posterior third of the lung is much simpler in structure than those situated anterior to it. We shall find, as we continue the comparative study, that this posterior sac is slow to take on the complex structure found in those lying more an- terior to it. The lungs of the Chelonians show beautiful gradations in their division into cavities and in the complex sub- division of these cavities. In many forms the posterior sac is quite simple in structure, resembling the lungs of Necturus and of Rana ; but we find the primary divisions extending deeper and deeper into the centre, until, in Macrochelys, we find that it has a similar structure to those lying anterior to it. The bronchus extends cen- trally to the posterior sac ; the openings from the bronchus into the different sacs are nearly circular, and they are the only opening which each sac possesses. We found in Heloderma that there were no openings through the parti- tion walls of the sac ; the same is true of all Chelonians. The only means of communication between neighboring air-sacs is through the bronchus. In Crocodilia the bronchus enters the lung near its centre and on its inner side ; it passes somewhat obliquely into the lung, and at the junction of the lower and middle thirds breaks up into six to twelve tubular passages. The point where the bronchus breaks up forms a terminal bronchus; the tubular passages are elongated atria; opening out of them are numerous small air-sacs, which are subdivided into air-cells. There are no communica- tions between one atrium and another, or between ad- joining air-sacs. I have used in my study specimens ob- tained from the crocodile of the Nile, and from our representative of the group, the Florida alligator. In Aves the type of the lung presents marked differ- ences from that of reptiles on tlie one hand, and of mam- mals on the other. The lungs are closely attached to the ribs and their interspaces. The bronchus penetrates into the lung and breaks up into elongated tubular passages, which, in some instances, communicate with each other by means of short branches. These tubular passages are not true bronchi, because their structure shows a marked difference, and they do not give rise to terminal bronchi. They are to be considered as atria, and the alveoli, or true lung structure, arise from them just as we have found to be the case in the lung of the crocodile. By tracing the principal bronchi through the lungs we find that they communicate, by means of openings more or less circular in outline, with large air-bags situated in the abdominal cavity, or with air-spaces in the bones, etc. These air- bags must be considered as a portion of the lung, for they are directly continuous with the bronchi and are developed from them.35 There are no communications between air-sacs. The lungs of mammals I have studied by resorting to Born's " method of reconstruction.* In no instance have I found any communication between neighboring air-sacs or between one atrium and another. As was seen in the lungs of the lower animals, the only mode of communi- cation was through the bronchus. I have examined care- fully specimens taken from the lungs of man, the dog, the cat, and several other mammals, both in adult life, in the growing period, and in foetal life, but have invariably failed to find any communication. Blood-vessels.-We have to consider three vessels, the pulmonary artery, the pulmonary vein, and the bron- chial artery. The relations of the pulmonary artery and vein before entering the lung can be found in all sys- tematic works on anatomy. The position occupied by the bronchus, artery, and vein at the hilus of the lung has been already stated. Within the lung the pulmonary artery follows closely the bronchi throughout their entire course. The divisions of the artery correspond to those of the bronchi ; so if one knows the number of bronchi in a given lobe, the num- ber of arteries is also known. With the division of the bronchus into terminal bron- chi and their breaking up into the parenchyma of the Fig. 385.-Scheme of the Lung Lobule. B, terminal bronchus ; A, atrium; N, air-sac ; F, vestibule; P, air-sac passage; C, air-cell. The shaded vessel is the artery, the vein is in outline. lung, changes take place in the distribution of the artery ; it penetrates into the centre of the lobule until it reaches a position beyond the terminal bronchus ; there it breaks up into as many branches as there are atria, and from these branches are given off which pass to the air-sacs. There are also branches which correspond in size to those given off within the lobule, that arise from the artery just before entering the lobule, and supply the air-sacs winch lie close to the terminal bronchus. As a rule, these air- sacs arise from an atrium which has taken a recurrent course. On reaching the air-sac the artery divides into small radicles which run on the central side of the air-sac in the sulci between the air-cells, and finally are lost in the sys- tem of capillaries to which they give rise. The capillaries anastomose with those of adjoining air- sacs, but the arteries do not anastomose with each other. There is, therefore, but a single system of capillaries in the wall of an air-sac or atrium. The capillaries have a * Reconstruction methods have, so far as I have been able to learn, been made use of by Born, His, Seienka. Zimmerman, His, Jr., Piersol, Fol, and Mall in the study of embryos, and by Spelteholtz, Mall, and my- self in histology. 575 ImilgK. Luxeuil. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) diameter of about 7 being slightly larger just beneath the pleura and somewhat smaller deeper in the lung. In length they are rather more than twice their diameter, and the space between the capillaries, the mesh, is a trifle more than the diameter of the vessel. After the capillaries have formed from twenty to twenty-four loops they unite to form small venous radi- cles which are situated on the peripheral side of the air- sac. These radicles do not lie in the sulci between the air-cells, but run directly over their centre ; they eventu- ally form a small vein, several of which, uniting together, form the veins of the lobule. These larger veins run in the interlobular spaces and are situated as far away from the bronchus as possible. We have therefore an artery on the central side of each air-sac, a vein on the peripheral, and between the two a rich capillary network, thus giving an arterial and venous side to each air-sac. The bronchial arteries are distributed to the walls of the bronchi and run throughout their entire length ; they are also distributed to the areolar tissue of the lung, the walls of the blood-vessels, and the lymphatics. I have been unable to find any veins accompanying the artery. The bronchial artery forms a long-meshed capillary network that unites to form short veins which open into the pulmonary vein. The question whether the bronchial artery opens into the pulmonary artery or vein, has been much discussed. I cannot here enter on a full description of my work on the subject, but will give the results. The bronchial artery is distributed to the bronchus throughout its entire length, to the walls of the blood- vessels, the lymph-vessels, the connective-tissue sheaths and septa. From the walls of the expanded end of the terminal bronchi two small vessels arise, which are formed by the capillary system, into which the bronchial artery breaks up ; these pass out from opposite sides of the bronchus. Each vessel receives a small number of venous radicles from neighboring air-sacs, and in this way a short but quite large vein is formed which empties itself into the nearest pulmonary vein. As these two veins arise from the expanded end of the bronchus, they lie within the lobule, and form an exception to the rule that all veins lie on the periphery, while the arteries occupy the central portion of the lobule. In a few instances I have found small veins coming from the bronchus just before entering into the lobule ; in other words, small veins may arise from the walls of the last forked division of the bronchus. They follow the same course as those within the lobule. IF. S. Miller. 27 Roosevelt: Medical Record, Feb. 22, 1890, and The New York Medical Journal. March 7. 1891. 28 Miller : The Lobule of the Lung and its Blood-vessels. Anatom- ischer Anzeiger, vii., No. 6 ; The Structure of the Lung. Journal of Morphology, vol. viii. 29 Milne-Edwards: Leyons sur la Physiologie et 1'Anatomie com- paree. 30 Ewart: The Bronchi and Pulmonary Blood-vessels. London, 1889. 31 Aeby : Der Bronchialbanm, etc. Leipzig, 1880. 32 Owen : Anatomy of Vertebrates. London, 1868. 33 Born : Die Plattenmodelirmethode, Arch. f. Mikro. Anat., Bd. 22 p. 584. 34 Mall : Das Reticulirte Gewebe, p. 40. Tab. xi. Leipzig, 1891. 35 Weldon : Proceedings of the Zool. Society, 1883 ; Mall: Journal of Morphology, vol. v., No. 1. 36 His: Zur Bildungsgeschichte der Lungen beim menschlichen Em- bryo, Archiv fur Anatomie, 1887. LUNGS, CROUPOUS AND OTHER INFLAMMA- TIONS OF. Consideration of this subject is here limited mainly to etiology in reference to the agency of microbes. Weichselbaum (1887) holds that the bacteria found in the different forms of pneumonia are to be regarded as the cause of the inflammation, and taking cold as only a predisposing event. He considers the diplococcus as the most frequent cause. Perret and Rodet (1887) have together made experi- ments of injecting microbes (presumably under the epithelial surface of the air-passages), and conclude that pneumonia may be produced by a variety, including those of typhoid fever, measles, scarlatina, etc. Weichselbaum (1888) found bacteria constantly present in the different forms of pneumonia, and most active and abundant in early stages. In his opinion the virus is not a unity, but the croupous form itself may be due to sev- eral different organisms. The distinction of lobar and lobular, croupous and non-croupous, he believes to be ana- tomical merely-not etiological. Frankel's diplococcus is the most common microbe found, Friedlander's being rare. This diplococcus (Frankel's) is found in all the cavities about the nose ; also in the brain, spinal cord, pleura, pericardium, interior mucosae and submucous tis- sue. The same organisms are sometimes found in endo- carditis and suppurative arthritis. Monti (1888) withdrew the exudation of pneumonia from the lungs during life by means of Koch's syringe, and in twenty instances failed only once in obtaining micro-organisms. Frankel's diplococcus was always found (Friedlander's never), sometimes associated with other micrococci. Inoculation of rabbits with the sputum always gave positive results, but produced pneumonia only when thrown into the trachea. Under the external skin it caused septicaemia ; into the pleura, pleuritis and pericarditis, but never pneumonia ; into the dura mater of a dog, after trephining, it caused meningitis. Netter (1888) holds that pneumonia is transmissible through specific pathogenic micro-organisms, which mul- tiply in the diseased foci, and leave the body chiefly in the sputa. The contagium resists desiccation and retains its activity for a long time outside the body. The examination (1889) by Prudden and Northrup of seventeen children who died of diphtheria complicated with pneumonia, disclosed similar streptococci in both the diphtheritic membranes and the lungs of all but one of the cases. By using intra tracheal in jections of pure cultures of these streptococci, obtained from the lungs of the chil- dren, they uniformly produced lobular or broncho-pneu- monia in rabbits. Netter (1889) reports an infant born of a woman while ill of pneumonia. The child lived five days, and autopsy revealed pneumonia at the apex of the right lung, double pleurisy, suppurative pericarditis, and cerebro-spinal meningitis, associated with microscopic appearance of micrococci. It is presumed that the child was infected by the mother before birth ; and similar observations have been made in rabbits, guinea-pigs, and mice. According to Sternberg, Frankel's diplococcus (called by him micrococcus Pasteuri) is widely distributed, and is often found in the sputum of healthy persons. Mosier, of Greifswald (1890), gives a series of cases in one family. The father apparently contracted pneu- monia outside and communicated it to the others. The 1 Hippocrates : De Carnibus, Op. om„ Kuhn's trans. 2 Aristoteles: Hist. Animal., lib. I., cap. 16, 17. 3 Celsus : Lib. iv., cap. i. 4 Galenus : De Usu Partium Corp. Hum., lib. vi., cap. 3. 6 Vesalius (1543) : De Corp. Humani Fab., lib. vi., cap. 7. 6 Harvey (1628) : Exercitatio Anatomica de Motu Cordis et Sanguinis in Animalibus. 7 M. Malpighi: De Puhnonibus, Epistolae ii. ad Borellum. Bonon, 1661. 8 Bartholin : De Pulmonum Substantia et Motu Diatriba (s. p. 355 of the edition added to the works of Malpighi). Op. om., etc., 1687. 9 Willis : De Respirationis Organiset Usu, Om. op. Lugd., 1676. 10 Helvetius : Memoires de 1'Academic Royale des Sciences, 1718. 11 Soemmering: De Corporis Humani, Anat., vol. vi., pp. 14, 15, 35. 13 Reisscissen : De Pulmonis Structura. Argent., 1803. 13 Magendie : Lemons sur les Phenomcnes Physiques de la Vie. Paris, 1836-37, t. ii. 14 Bazin : Comptes-Rendus de ['Academic Royale des Sciences, sur la Structure intime du Poumon. Paris, 1832. 15 Lereboullet: Anatomie comp, de l'Appareil Resp. Strasbourg, 1838. 16 Addison: Phil. Transactions, 1842. 17 Huschke: Soemmerings Lehre von den Eingeweiden, 1844. 18 Rainey : On the Minute Structure of the Lungs, Medico-Chirur. Trans., vol. xxviii., 1845. 19 Moleschott : De Malpighianis Pulmonum vesiculis. Heid., 1845. 20 Rossignol: Recherches sur la Structure intime du Poumon de FHomme et des principaux Mammiferes. Bruxelles, 1846. 21 Adriani: Dissertatio Anatomica inauguralis de subtiliori Pul- monum Structura. Trajecta ad Rhenum, 1848. 23 Kolliker: Microscopische-Anatomie, Leipzig, 1850 ; Handbuch d. Gewebelehre d. Menschen, Leipzig. 1852. 23 Mandi: Anat. Micros., t. ii., chap. vi. 24 Waters : The Anatomy of the Human Lung. London, 1860. 26 Henle : Handbuch d. System. Anatomie d. Menschen, Bd. ii., Art. Lungen. 35 Delafield : Studies in Path. Anat., vol. i., p. 102. 576 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Lung's. Luxeuil. fluid from the lungs contained bacilli resembling those of septicaemia in the rabbit, but no micrococci of Frankel nor of Friedlander. Levy reports, in a Paris journal (1890), a case of congen- ital fibrinous pneumonia complicated with pleurisy and pericarditis. Sero-purulent fluid aspirated from the chest gave cultures of the diplococcus of Frankel and Weichselbaum, and inoculations of the same proved their potency. The child was born thirty-six hours before the mother's death, and died, two days after birth, of broncho- and lobar fibrinous pneumonia combined. Fluid was drawn from the left ventricle of the heart and right lung, and cultures from the same gave Frankel's diplococcus. This microbe was also found abundantly in the blood. Platini (1890) found that inhalation of the pneumo- coccus failed to cause pneumonia, while the mucous sur- face of the respiratory tract maintained its integrity. After traumatism through the thoracic walls, or inhala- tion of ammonia or hydrochloric acid, infection took place. It was found that the animals after inoculation had more elevated temperature and more extensive pneu- monic lesions, and succumbed more rapidly when sub- jected to refrigeration, than other animals similarly inoc- ulated but not exposed to cold. On the other hand, exposure to cold without the inoculations failed to induce pneumonia. Debove (1890) reports having found pneumococci in a case of meningitis complicated with peritonitis, but there was no pneumonia. Netter observes that pneumococci are rare in peritonitis, but occur in most cases of meningitis. Cultures of pneu- mococcus have been made from the fluids of cerebral and spinal meningitis and encephalitis ; also from those of pleurisy and empyema, both independently of pneumo- nia and complicating it. Devoto, in many examinations of those dead from pneumonia, never found Frankel's diplococcus in the kidneys. Luccatello generally found the blood free of them. But Canfield, at the pathological laboratory of Johns Hopkins Hospital, has found them in the blood and tissues of rabbits killed with Sternberg's sputa and with the prune-juice expectoration of pneumonia. Bozzolo reports the discovery of diplococci in the milk of a woman ill of pneumonia. Several French physicians (Mosny, Laboulliere, Strauss, and Brouardel) report fatal cases of pneumonia, in which they attribute the infection to the streptococcus of ery- sipelas solely. In like manner pneumonia coexisting with typhoid fever, scarlatina, small-pox, influenza, or dysentery, might be referred to the action of the mi- crobes of one of these diseases on the lungs. Assuming the correctness of the above observations, the following conclusions seem to be justified : 1. The most prevalent forms of pulmonary inflamma- tion hitherto enumerated (croupous or lobar, and ca- tarrhal or lobular) differ in degree and extent rather than in nature and cause. 2. Pulmonary inflammation is always accompanied by micro-organisms, and may be regarded as directly de- pendent on their action. The most common is the diplo- coccus of Frankel, but several others are found operating singly or mixed. 3. The same micro-organisms affect other anatomical parts, producing inflammation in all instances. Various parts may suffer at the same time from the same kind of bacteria. Several species of bacteria may be found in the lungs at the same time, all concerned in the inflam- matory process. Pneumonia, therefore, is not a specific disease, in the usual sense of the word specific. 4. A solution of continuity in the mucous surface of the respiratory tract is a necessary antecedent. Bron- chial catarrh with cough is the most common predispos- ing cause ; inhalation of an irritating vapor, gas, or dust, and violent injury of the pulmonary structure in any manner, are efficient causes also. 5. The common atmosphere near the ground habitually carries in suspension the necessary micro-organisms to excite inflammation in lungs susceptible to their action, and such susceptibility is most usual in the seasons of (SUPPLEMENT.) coughs and colds. One or more cases of pneumonia in a dense population, where colds and coughs are prevalent, may then light up an epidemic of this disease. 6. That condition of the respiratory tract which ren- ders a person liable to pneumonia, probably exposes one to the infection of pulmonary consumption, wherever the bacillus tuberculosis may be present in atmospheric dust; and this accords with the frequent sequence of phthisis to pneumonia, the bacillus tuberculosis being slower in propagation and growth than most other disease germs. As to treatment, intra-pulmonary injections of solu- tions of corrosive sublimate, potassium iodide, sodium benzoate, and iodoform have been tried, but the results have not been encouraging. Petresco claims extraordi- nary success from large doses of digitalis-the disease aborting in two or three days, and the physical signs dis- appearing altogether in three days. In some cases he avers that the subject has resumed work in twenty-four hours. A reasonable explanation is, the drug strength- ens the heart's action and thus promotes the removal of the products of inflammation by the blood-current. Blis- ters over the chest may be supposed to increase the flow of blood through the parenchyma of the lungs, and so produce the same effect. In this view the earliest appli- cation is the most efficient, and such has been the experi- ence of the present writer. S. S. Herrick. LUXEUIL. This " almost unique" spa, situated in the Vosges region of France, has already been briefly referred to in Vol. IV. of the Handbook. Owing to its impor- tance, the following additional information may be found useful. The ancient town wears a picturesque aspect, and if the thermal establishment and casino are not so pre- tentious as are those of the more fashionable resorts, they are nevertheless supplied with all essentials for the cure of invalids. The chalybeate waters being freely " digest- ible," are taken with impunity by delicate women and even children. It is claimed that the surprisingly good results obtained in the treatment of anaemia at Luxeuil are due to the admixture of arsenic and manganese with the iron compounds. Of the eighteen springs found at this spa, fifteen are exploited. Bathing and drinking go hand in hand at this resort, few patients being subjected to only one kind of treatment. A so-called "crisis" is commonly produced by a course of Luxeuil waters. Mr. Wolff (" The Watering-places of the Vosges ") describes this phenomenon as follows : " Even the saline waters produce this-a combination of all sorts of unpleasant sen- sations, describable and indescribable-insomnia, debility, palpitations, constipation (aggravation of constipation is a very usual first effect), cutaneous eruption, sometimes, and in acute cases even fever. When the water taken is the chalybeate, the ' crisis ' appears in an aggravated form. However, all this does not last very long, and the doctors rather like to see it, on the principle that it shows the waters to be doing good. Sometimes, however, there is a recurrence of the same symptoms in the third or fourth week. Whenever that happens it is held to show that the treatment has been carried far enough and should be discontinued. On its cessation the unpleasant symp- toms subside almost at once, and give place to an im- provement which in some cases is described as really astonishing." The same author also states that " the marked dif- ference in the Luxeuil waters is attributed to the dif- ference in the triassic strata from which they spring. There are, first, the rather warm springs, ranging from 95° to 132° F., which are alkaline and saline, but of rather slight mineralization, the total of solid matter in the litre not exceeding 1.17 gramme. These resemble, generally speaking, the Plombi&res waters, and are of course con- sidered useful for much the same classes of cases- rheumatism, liver complaints, dyspepsia, diabetes, affec- tions of the respiratory organs, and some female mala- dies. They share with the waters of PlombiSres the peculiarity that, however hot they be, flowers (or other vegetable matter) thrown into them do not at once shrivel up and fade, but rather assume at first a brighter coloring. Secondly, there are the chalybeate waters, 577 Liiixeiiil. Magneto-Therapy. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. which are less warm, indicating from 72° to 86c F., even less mineralized-having but 0.9 gramme of solids in the litre-but remarkable for holding their iron in com- bination with a strong dose of manganese. (This really applies to the saline waters as well, only the quantity of iron is much smaller). The chalybeate waters, as might be expected, contain a very much larger proportion of free carbonic acid-it is said about six times the quantity. In both varieties of waters there occurs a fair amount of nitrogen, and some arsenic. It is the ferruginous water which makes Luxeuil almost unique, and so wonderfully effective in women's and children's anaemia, hypochon- dria, the malaria urbana, rheumatism-articular, mus- cular, or fibrous, more particularly rheumatism in the intestines,-neuralgia, uterine complaints, anaemia (pre- tendue), palpitations, scrofula, etc. The water is held to be contra-indicated only where anaemia arises from organic degeneration." Analysis.-The subjoined table gives a fair average of the different springs. In one thousand parts there are contained : (SUPPLEMENT.) The disinfectant and deodorizing properties are un- doubted. They are such as would be expected from a solution of cresol of such a strength, and experiments have shown that a 0.3 per cent, solution is capable of arresting the growth of the staphylococcus pyogenes aureus. It is also perfectly harmless and devoid of any toxic action. For surgical purposes it is used in different degrees of strength. For disinfecting the hands and cleansing the body of the patient a live per cent, solution is used by rubbing into the parts thoroughly, and then washing it off in a solution of one or two per cent. For disinfect- ing instruments and for irrigation during an operation a one or two per cent, solution is prepared, and for gynae- cological and obstetrical purposes a solution of one-half per cent, is sufficient. Lysol is indicated and may be used in all forms of in- flamed and ulcerated surfaces in which a disinfectant is required. On mucous surfaces, when used in stronger solution than two per cent., it causes a burning and pain- ful sensation which lasts for some time, but otherwise is perfectly unirritating. Lysol has recently been administered internally {Ther- apeutic Gazette, November, 1892), in the treatment of scarlet fever. In doses of three to ten drops, of a mixt- ure of lysol one part to two parts of sherry wine, three times a day, the temperature of the patient was rapidly lowered, the albumin disappeared from the urine, and the general condition of the patient improved. In dys- entery and choleraic diarrhoea it was serviceable when used as a clyster in the strength of a one per cent, solu- tion. From the satisfactory results thus obtained it is suggested as a remedy in Asiatic cholera, by giving im- mediately 2.5 grammes of lysol mixed with a stimulant, and thoroughly washing out the intestines with a one per cent, solution. Beaumont Small. MAGNETO-THERAPY. Magnetism is known to be a remarkable force, and it is not strange that from time to time the occult power of magnets has been brought to bear upon certain disorders by physicians in the hope, and often with the belief, that it would be efficient as a remedial agent. We need not seek far in medical litera- ture for matter relating to magneto-therapy. For in- stance, Roberts Bartholow, in the third edition of his work on " Medical Electricity," published in 1887, says : " We know that a current circulates in a magnet. If a powerful magnet is brought near to the skin, oppo- site electricities are attracted to the poles and currents are induced. About the point of application, there- fore, the skin will be acted on directly by the magnetic current and by an induced current. The production of physiological effects, which can be recognized, is therefore merely a question of magnetic strength." He then quotes Dr. Vansant, as assuming the body to be diamagnetic : " By applying north and south polarity to different parts, very extensive subjective impressions are experienced ; they are of two classes of heightened or- ganic activity and the opposite condition." He then adds : " That impressions of a very decided kind are produced by the application of strong magnets is evident in the experience of Dr. Proust and Dr. Ballet, who continued a course of investigation begun by Char- cot at Salpetriere." They ascertained that magnets could not be applied with impunity, for, if applications were prolonged, pains were felt in the epigastrium and thorax, making respiration painful, digestion was disordered, and boulimia brought on. These results were so uniform that there seemed to be no doubt of their genuineness in the minds of the investigators. Under the heading " Therapeutical Application of Mag- nets," Dr. Bartholow quotes Dr. Hammond as preferring a horseshoe magnet, and advising that several of the same size be kept, so that by clamping them together more power can be obtained. The author adds : " Hammond insists on the necessity for the application of both poles in many cases, and therefore uses the horseshoe magnet." " Hammond has used magnets in nine cases of chorea, in two ' complete cures being produced in a few min- utes.' " Sources Thermales. Parts. Silica 0.0360 Phosphate of iron 0.0027 Carbonate of iron 0.1093 Carbonate of manganese ... 0.1074 Carbonate of magnesia 0.0136 Carbonate of lime 0.0810 Chloride of sodium 0.0369 Chloride of potassium 0.0240 Chloride of magnesium .... 0.0240 Chloride of calcium 0.0296 Salts of arsenic traces Organic matter and loss.... 0.4169 Total of solids 0.9005 Temperature 70° to 86° Fahrenheit. Sources Hyperthermales. Parts. Silica 0.0988 Carbonate of lime 0.0732 Carbonate of magnesia 0.0075 Carbonate of maganese 0.0023 Carbonate of iron 0.00311 Sulphate of soda 0.1646 Chloride of sodium 0.7512 Chloride of potassium 0.0585 Chloride of lithium 0.0096 Carbonate of soda 0.0216 Arseniate of soda 0.0006 Boracic acid, fluorine traces Organic matter and loss.... 0.0757 Total of solids 1.1684 Temperature 95° to 133° Fahren- heit. Accommodation.-The hotels and boarding-houses of Luxeuil are not in all respects first-class. Nevertheless most patients can be made tolerably comfortable for the few weeks time which the " cure " calls for. The peo- ple of the place are very obliging to foreigners. Edmund C. Wendt. LYSOL. This is a proprietary preparation of cresol introduced to supersede creolin, the best known solution of this valuable disinfectant. Since the discovery of the active antiseptic properties of cresol various methods have been adopted to secure a solution suitable for prac- tical purposes, and numerous patented preparations have been supplied to the profession. Many disadvantages attend these solutions, the most common being a precip- itation of the constituents when added to water, which produces turbid mixtures, and an annoying soapiness that renders the instruments and the hands of the oper- ator slippery and unpleasant. The advantages claimed for lysol over the other cresol compounds are that it forms a clear solution when mixed with water, contains a greater amount of cresol, and is perfectly free from in- jurious qualities. It is said to be prepared by dissolving the cresols, which distil between 190° C. and 200° C., in fatty matter and subsequently saponifying by the addi- tion of alcohol. It is a brown, oily-looking, clear liquid, with a feeble, aromatic, creasote-like odor. It is said to contain fifty per cent, of cresol. Its solution forms a soapy, frothing fluid, which only becomes turbid when mixed with hard water, the extent depending upon the quantity of lime-salt present; this turbidity increases upon standing for some time. Lysol mixes freely with alcohol, glycerine, chloroform, and benzene. The sapo- naceous character is claimed as an advantage, as it facil- itates cleansing and disinfecting the site of the operation and the hands of the operator. It acts in a manner equal to the best soap, and readily removes all dirt, fat, and resinous matter. In order to avoid the annoyance of the soapy instruments and to facilitate the tying of sutures, the hands and instruments may be rinsed in sterilized water to remove the lysol solution. 578 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Lu xeutl. Magneto-Therapy. (SUPPLEMENT.) "In two cases of hemiplegia with hemiangesthesia Hammond had very surprising results from the applica- tion of horseshoe magnets, the sensibility returning im- mediately, and in one the hemiplegia was recovered from in a few hours." Professor Benedikt, of Vienna, who has made much use of the magnet in nervous affections, has taught that erethitic forms of hysteria are better treated by the mag- net than by electricity, hydrotherapy, or drugs. A magnet being applied to the sensitive vertebrae, without removal of the dress, the irritable patient soon becomes quiet and even quasi-paralyzed. The magnet, therefore, " increases the resistance to conduction in the motor nerves." The muscles gradually relax, the respiration becomes sighing, consciousness slowly disappears ; the resistance to conduction in motor nerves "could easily become absolute." The two poles have different effects. Sometimes one pole to a hyperaesthetic ovary fails to re- lieve pain, whereas a change of the poles causes its speedy disappearance. According to him the magnet must be employed with due caution, since patients may be injured by it. Of late years Luys has in Paris brought to the atten- tion of the profession some of the marvellous effects of magnets upon the human body, but it is plain that Luys has been carried away by his own imagination as well as by the imposition and simulation of his patients. Where not directly due to feigning, the facts in his experiments can readily be explained by the phenomena of sugges- tion. The magnets made use of by physicians are generally those of a horseshoe shape, varying in length from a few inches to a foot. They are the so-called permanent mag- nets. They exert a traction force equivalent to several ounces and in some instances to as much as three or four pounds. But electro-magnets may be made infi- nitely more powerful. Some may sustain two hundred pounds to each square inch, or fourteen kilogrammes to the square centimetre of active surface on either pole, that is to say, twenty-eight kilogrammes to the square of active surface on either pole if both poles are alike and share the load. A propos of the effects of the magnet upon the human body, some experiments were recently made by Dr. Frederick Peterson and Mr. A. E. Kennelly, at the Edi- son Laboratory at Orange, N. J. (" Some Physiological Experiments with Magnets at the Edison Laboratory," New York Medical Journal, December 31, 1892). Sev- eral of the largest magnets known to modern science were made use of by the experimenters. In one of them the intensity of the magnetic field between the poles was about five thousand centimetre-gramme-second lines to the square centimetre, a field twenty-seven thousand seven hundred and seventy-eight times that of the earth's horizontal component that aligns the compass needle. A microscope was properly arranged so that substances might be examined when exposed to the operation of this force. Iron by hydrogen, dry or placed in water, was observed to act as do iron-tilings when similarly treated. Dry powdered haemoglobin exposed to this magnetic field was not visibly affected by it. Human and frog blood-corpuscles similarly examined showed not the feeblest traces of polarization, move- ment, or vibration. Living ciliated epithelium from the pharynx of a frog was absolutely unaffected by the magnet as it was mag- netized and demagnetized by the making and breaking of a one hundred and twenty volt current in the huge coils. The delicate ciliary movement continued without change of any kind. The circulation of the blood in the web of the foot of a curarized frog was observed under the microscope in the same way, and it was demonstrated that the magnet had not the faintest influence upon the blood or its movement. A small dog was placed in the cylinder of a set of idle field magnets and kept for five hours exposed to a mag- netic field with an intensity of 1,000 to 2,000 c.g.s.* lines to the square centimetre, and not the slightest visi- ble effect was produced upon the animal. The next experiments were directed to studying the influence of magnetic fields on the human brain. The machine employed for the purpose converts about 70 horse-power at full load. The armature and one journal were removed, leaving the space between the pole-pieces free. This cavity is 35 ctm. (fourteen inches) in diam- eter and 60 ctm. deep. The weight of this electro-mag- net is over five thousand pounds, and the intensity of the magnetic field produced within the polar cavity after removal of the armature, though not uniform, may be estimated at a mean of 2,500 c.g.s. lines to the square centimetre. A long board was placed upon the base plate leading into this polar cavity, and the subject ex- perimented upon lay on his back upon the board with his head and shoulders in the cavity between the poles, and exposed thus to the full influence of the magnetic field. There would be comparatively feeble residual magnetism with no current in the coils. A switch so nearly silent in action as to be inaudible to the subject was arranged to close and open the exciting current circuit through the field coils. On closing the switch nearly the full magnetic intensity would be active and permeate the head within one second, and on opening the switch the whole intensity would disappear in one second. Five men, the authors being among the number, were subjected to trial, and the following description of one case serves for all, since the results were precisely the same : The subject lay back upon the board and concentrated his attention upon his sensations. His right wrist was extended and was grasped by one observer, who took sphygmographic tracings of the pulse. A second ob- server placed a hand on his chest to observe any irregu- larity that might occur in respiration. A third observer, in view of these two, but unseen by the subject of the experiment, opened and closed the switch that excited and relaxed the field, signalling to the first two observers as he did so. The strong magnetic influence was therefore turned on or off at will and without the knowledge of the subject. Several sphygmographic tracings were taken in each of our subjects, and in one the knee-jerk was tested continuously. The sphygmographic tracings taken continuously dur- ing the seance show no change in regularity, in spite of the making and breaking of the enormous magnetic in- fluence during its registration. The respirations were not changed in the least. The knee-jerk also presented absolutely no change. As to common sensations, there were none that could be attributed to the magnetic influ- ence, and the subject could not discover when or whether the field had been excited. The testimony of all five subjects was alike. In one experiment the subject held a steel screw in his mouth, and was then able to tell when the poles were magnetized or demagnetized, but only by the pulling of the screw to one side or another, not by any peculiar sensation or taste. Experiments wrere then made with reversed magnetism. A huge coil of stout, cotton-covered copper wire, about 30 ctm. high and 25 ctm. internal diameter, weighing 70 kilogrammes and composed of nearly 2,000 turns, was so arranged that the head of the subject could be freely introduced within the coil. Its resistance was 10 ohms, and an alternating current of 1,200 volts, making 280 alternations per second, was passed through this coil. The magnetic field would thus be reversed 280 times per second. Each of the authors acted as subject in this experiment. No appreciable effect of any kind was pro- duced when the head was introduced. The authors concluded that the most powerful magnets known at the present time have no effect whatever upon the organism, neither upon the iron of the blood, upon the circulation, upon ciliary or protoplastic movements, upon the sensory or motor nerves, nor upon the brain. * c.g.s. = centimetre, gramme, second. 579 Magneto-Therapy. !Hal lor matioiis. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) The ordinary magnets used in medicine by Hammond, Benedikt, Charcot, Luys, and others have a purely sug- gestive or psychic effect and would be quite as useful if made of wood. Frederick Peterson. MALFORMATIONS, PRODUCTION OF. Among the invaluable services of embryology in adding to the gen- eral fund of biological knowledge none have been more signal than the removal of developmental anomalies from the domain of fanciful speculation and the establishment of a rational teratology based upon the laws of develop- ment. Not only has embryology indicated the lines along which the production of anomalous development pro- gresses, but, likewise, it has indicated the broader mor- phological significance wdiich in many cases exists, emphasizing especially the fact that not infrequently deviations in the higher types correspond to the normal and usual condition of lower forms. Notwithstanding the advances in the comprehension of the true significance of variations which the progress and increased accuracy of our knowledge of the course of normal development have rendered possible, there are still numerous deficiencies in our understanding of the primary causes producing malformations-breaks which renewed investigations and further observations alone can supply. The most rational teratological classification, it is evident, would be that in which malformations were grouped according to the various methods of their pro- duction ; unfortunately, however, with the present limi- tations and uncertainty of our knowledge of these pro- cesses all attempts at such grouping must be imperfect and provisional. Defects arising from the mechanical effects induced by diseased and unusual conditions of the foetus, as accumu- lations of fluid in abnormal quantity within the body- cavities or the undue size of organs, which may, in an adverse manner, directly influence the development of sur- rounding parts, must be distinguished from those distor- tions resulting from inflammatory processes, these latter falling under the category of pathological changes rather than of developmental deviations. A few words concerning the much-vexed question as to the responsibility of maternal impressions in the pro- duction of malformations may here, at the beginning of the consideration of our subject, find place. While fully appreciating the sincere convictions of not a few in the belief of the sufficiency of such impressions, and in the sometimes apparently convincing testimony adduced in support of such views, the writer must confess his in- ability to attach much importance to these influences. In this connection attention must once more be called to the significant fact that in the majority of cases the affected parts are already well advanced in their development be- fore the supposed impression takes place ; in fact, not in- frequently the developmental deviations necessary in the production of the malformation attributed to the mater- nal impression take place before the existence of preg- nancy is even suspected. While it may be conceived that certain defects may result from nutritive changes induced as the consequence of profound nervous impres- sions on the mother, yet to those familiar with the embry- ological significance of malformations the basis of the popular belief in the potency of maternal impressions will appear as depending more upon the very natural dis- position to find an explanation for otherwise unintelligi- ble misfortunes in coincidental circumstances, rather than upon well-established or accurately observed phenomena. The various headings here introduced make no pre- tence to systematic arrangement, but are simply provi- sional, as affording convenient groups for the considera- tion of nearly-related forms of deviation. Bearing these limitations in mind, malformations may be classed, with regard to their mode of production, into : I. Those produced by variations in nutrition and growth-either excessive or arrested. II. Those produced by defective union of component embryonic parts. III. Those produced by cleavage-either partial or complete-of the primary embryonic cell-mass. I. Malformations produced by variations of growth. a. The manifestations of excessive growth may be pres- ent in all parts, resulting in a general increase of the en- tire organism, or they may be limited to some particular region, as half of the body, a simple extremity, or a special finger or toe, While slight deviations from the normal average length (50.5 ctm. or about twenty inches) and weight (3,250 grammes, or about 7.2 pounds) of the new- born infant constantly occur, yet well substantiated in- stances where these figures are exceeded to any marked extent are by no means frequent. A height of over 200 ctm. may properly be considered as gigantic. It is worthy of note that individuals conspicuous by reason of their extraordinary proportions quite usually were children of ordinary size, whose parents, likewise, were of average stature. * The case reported by Beach 1 is a striking exception, since the father measured seven feet seven inches, and the mother seven feet nine inches. Their first child, immediately after birth, was twenty- four inches long and weighed eighteen pounds, while the second measured thirty inches and weighed twenty- three and three-fourths pounds. The assumption of an excessive amount of formative material, in the attempt to find an explanation of these instances of unusual growth, must be unsatisfactory when it is remembered that in some cases almost ten years have elapsed before the child evinced any disposition to excessive size. It must be ad- mitted that our knowledge extends little beyond surmise as to the cause of these cases. Equally uncertain are the causes leading to the curious excessive growth limited to some particular part of the body, as when one extremity, a hand, or even a single finger, attains inordinate dimensions without participa- tion of the adjacent parts. It is evident that such in- stances of excessive growth must be carefully distin- guished from enlargement the result of inflammatory processes or other pathological conditions. As with the instances of general increase, so here, also, the affected parts may for some time after birth present no unusual characteristic, the tendency to extraordinary growth first becoming noticeable at a later day. The subcutaneous connective tissues share with the osseous, vascular, and lymphatic tissues in the participation of the changes in question. b. Variations due to defective growth may be grouped into : 1, those in which a general decrease in size is ac- companied by uninterrupted development ; 2, those in which the diminution is dependent upon arrested or anomalous development. The first group is represented by true dwarfs, in which physical development has taken place to completion al- though the resulting organism is of unusually small dimensions, owing to insufficient growth. Individuals greatly reduced in size, and, at the same time, completely developed, are of rare occurrence ; concerning their eti- ology nothing is known. True dwarfs are, of course, to be carefully distinguished from the not infrequent cases where the diminished size depends upon the effect of pathological processes, as caries or inherited constitu- tional vices. Heredity plays as unimportant a role in the production of dwarfs as in that of giants, since, gen- erally, the parents are of normal size ; and, further, not infrequently the dwarfs during early infancy differ but slightly, if at all, from other children of similar age, the diminutive size, which later renders them conspicuous, attracting attention only as age advances. The second group, including those diminutions depend- ent upon arrested development and subsequent atrophy, embraces malformations varying greatly in degree, from a rudimentary finger to a shapeless acardiacus. The im- paired nutrition, to ■which the production of these mal- formations is due, may be the expression of general causes affecting the development of the entire organism and re- sulting in general atrophy, or of but local causes exerting their unfavorable influence within a very limited area ; in these latter cases they may be mechanically induced as the result of undue pressure, either from without or from within the embryo. The investigations of Kollmann2 and His3 render it highly probable that general malnu- 580 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Magneto-Therapy. Malformations, trition of the embryo in its earliest stages, resulting in the production of the "abortive" forms, to which the last- named author has recently again called attention,4 is much more frequent than is generally supposed. These abortive embryos, which may be either nodular, cylindrical, or contorted in outward form, may remain stationary in their development within their membranes for weeks or even months without decomposition or absorption. This fact affords the explanation for the not unusual, apparent- ly irreconcilably small size of the product of conception and the length of time during which pregnancy has ex- isted. These stunted embryos are often the seat of a peculiar proliferation of wandering cells, which invade the entire organism and obscure its histological details. The group of "acardiac" monsters, likewise, fur- nishes conspicuous examples of interrupted development brought about by impaired general nutrition. In such cases an atrophic foetus frequently is associated with a well-developed, and possibly entirely normal, mate, a common placenta, with double cords, being generally shared by the two. Regarding the manner in which these malformations are produced opinions are by no means in accord. The older view of Claudius6 attributes the atrophic changes primarily to the reversal and impairment of the circula- tion, brought about by the overpowering vigor of the stronger foetus. This doctrine has been warmly defended and further elaborated by Ahlfeld,6 according to whom the production of an acardiac monster is largely acci- dental. The development of an ovum containing two embryonic areas ordinarily results in the formation of " homologous " twins, in which great physical similarity is very pro- nounced. In any event the development progresses with regularity until the formation of the allantois at about the twelfth to thirteenth day ; if the growth of this organ proceeds with equal pace in both embryos the available space for attachment offered by the false amnion will be equally shared, and both embryos will be provided with allantoic, and later placental, circulations fully sufficient for their nutrition. The slight communication between the circulations, established by the anastomosis of the allantoic capillaries, which is usually found in such homologous twins, exerts no untoward influence on either embryo, both being born, at the close of gestation, fully capable of maintaining post-embryonic life. When, on the other hand, the connection between the two circulations involves large vessels, unequal propelling forces in the two embryos may lead to the gradual sup- pression of the normal blood-current of the weaker foetus, resulting in its death, followed by the subsequent disap- pearance of the amniotic fluid and cavity, and the pressing of the unfortunate foetus against the uterine walls, where, by the continuous pressure exerted by the increasing bulk of the stronger surviving foetus, the dead product is re- duced to the thickness of stout parchment, producing an atrophic mass to which the term/teZws papyraceus is some- times applied. In those cases where the allantois grows with unequal rapidity in the two embryos the fate of the weaker embryo is somewhat different. The allantois of the more vigorous attaches itself to the partial or com- plete exclusion of the less fortunate embryo, the latter being thus compelled to seek attachment for its allantois in the remaining unappropriated part of the area destined to form the placental attachment or chorion frondosum. Where, however, all of the placental area is already secured by the allantois of the first embryo, a secondary attachment to the united allantois of the first embryo is all that remains for the second foetus to secure. Em- bracing this last source of nutrition, the weaker foetus forms anastomoses with the allantoic or placental cir- culation of the stronger, and thus becomes directly de- pendent for its nutrition upon the circulation of the latter, constituting an allantoic parasite (Ahlfeld). Owing to this dependence, according to the views of the followers of Claudius, a reversal of the blood-current within the vessels of the weaker feetus takes place, and is the prime factor in the production of omphalositic monsters, with the accompanying imperfections in many organs. The heart, naturally, is greatly affected by the changed conditions of circulation, becoming, in numer- ous instances, reduced in function to constitute but a part of the vascular channel. The atrophy and frequent dis- appearance of the heart was formerly regarded as an al- most constant characteristic of these malformations, -as expressed by the commonly applied term "acardiac;" that such condition, however, need not necessarily be present has been pointed out by Ahlfeld, who has col- lected fourteen cases where "acardiac" monsters pos- sessed more or less developed hearts. The young organ may adapt itself to the reversed blood-current to an ex- tent sufficient to enable it to take part in the propulsion of the stream. The quite usual relatively much better developed condition of the posterior, lower, or caudal half of the foetus, is generally attributed by the supporters of Claudius to the more favorable situation of these parts to secure nutrition sufficing for at least partial develop- ment, while the upper portions of the foetus are denied nutrition adequate to prevent the atrophy and disappear- ance so commonly observed. That sometimes, however, the reverse may occur is shown in the case recorded by G. W. Koch,1 in which the neck, trunk, and upper ex- tremities were well developed without even a trace of a heart being present. In those instances where the avail- able blood-supply is insufficient for the nutrition of even the lower part of the foetus the entire organism becomes converted into a shapeless mass, retaining but little re- semblance to the human form, and representing the so- called amorphous acardiac monsters. Opposed to the foregoing views, ably supported by Ahlfeld, are those of Dareste,8 Panum,' Peris,10 Breus,11 Koch, and others, who maintain that the reversed blood- current and accompanying changes are secondary and dependent upon an inherent primary defect in the em- bryo of so grave a nature that development beyond a cer- tain stage becomes impossible. The destruction, which otherwise would be the inevitable fate of such embryo, is partially averted by the opportune assistance derived from the anastomosis of its allantoic circulation with that of its more fortunate companion, from whose more vig- orous circulation a donation is received capable of main- taining the partial nutrition of a larger or smaller por- tion of the affected embryo. The view advanced by Cleland 15 as to the origin of acephalic and other lowly developed types of monstrosi- ties corresponding to the acardiaci, opposes that of Clau- dius, and refers the origin of these forms to changes which follow primary posterior or " abcaudal " fission. According to this author, in the cases in question, one of the two segments resulting from such division develops with less vigor than the other, and, in consequence of the unequal growth of the segments and their external allantoic attachments, becomes subjected to greater and greater stretching, until finally separation takes place. One part of the weaker embryo remains attached to, and often within the stronger, while the other portion be- comes free, and, where the allantoic circulation is estab- lished, capable of maintaining an imperfect existence, resulting in the well-known types of acardiac monsters. Should the weaker embryonic segment fail to form ex- ternal attachments, it remains connected with the more robust mate, and probably becomes one of the more or less pronounced parasitic forms of double monsters. Whatever be accepted as the detail of the immediate process by which these highly aborted forms of mal- formation are produced, it seems certain that their ori- gin depends on a primary impairment of vitality of one of the embryos, as the result of which tardiness in secur- ing adequate allantoic attachments, and failure in main- taining a successful and independent circulation follow. Weighed by the standard of our present knowledge, the changes observed in the circulation of such malforma- tions can no longer be regarded as of the same primary significance as claimed for them by Claudius and his sup- porters, but rather as secondary phenomena, depending upon more deeply lying fundamental causes. In seeking the interpretation of those examples of ar- rested development and incomplete differentiation af- 581 Malformations. Malformations. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) fecting the lower extremities in various degrees, from the suppression of a single digit to the rudimentary de- velopment and fusion of both lower limbs, as in sireno- melus, it is difficult to determine to what extent such developmental arrest depends upon external mechanical influences as contrasted with deficiencies of formative material and force. Peris, Dareste, Gebhard,13 and others concur in ascrib- ing to an abnormally narrow amnion the principal role in the production of such arrests of development. Ad- mitting, as we must, that important modifications may undoubtedly be referred to the direct limitations of the enveloping membranes, yet the symmetry frequently observed in the defects under consideration, together with the fact that sometimes, as in phocomelus, those parts most directly and continuously exposed to external pressure are much better developed than those which are more deeply placed and less exposed, strongly em- phasizes the inadequacy of referring to merely mechani- cal influences the production of such anomalies, and renders imperative the assumption of the presence of a much more deeply seated cause of the arrest of develop- ment encountered. II. Malformations produced by the defective union of component embryonic parts. The limits of the second group of malformations, de- pending upon the imperfect union or fusion of parts orig- inally distinct but normally uniting in the course of development, are very wide, and include an extended series of defects, which vary in their significance from slight inconvenience, as simple harelip, to great deficien- cies incompatible with life, as extensive spina bifida. These defects naturally fall under two heads : a, those arising from imperfect union of embryonal parts, origi- nally separated ; b, those resulting from incomplete clos- ure of foetal passages. In connection with the anomalies embraced within the first sub-group, the early embryonic relations and pro- cesses must be recalled, especially the fact that the em- bryo largely develops by the fusion of two symmetrical halves. These halves, at first lateral tracts, differentiate into two sets of folds-dorsal and ventral. The former unite above the embryonic axis, as defined by the noto- chord, to form a dorsal tube, the neural canal ; the ven- tral folds join below the axis to form an imperfectly defined primitive digestive tube, whose ventral wall, throughout a variable distance, is incomplete for a time, opening directly into the umbilical vesicle or its duct, the last trace of this connection usually disappearing only at birth. The lateral parts of the dorsal or neural folds are continued into the marked duplications form- ing the amniotic folds, which gradually cover in, at first the dorsal, later, the ventral surface of the embryo. By the elongation ventrally of the root of the primary am- niotic folds, the tissues embraced within the latter (the ectoderm and the parietal layer of the mesoderm) grad- ually encompass the primitive digestive tube and form the ventral body-walls, the umbilicus marking the posi- tion where the last communications between the cavities of the foetus and external structures exist ; likewise, at the umbilicus, the embryonic parietes and the amnion are continuous. On comparing the normal union of the dorsal and ven- tral folds it will be seen that while the dorsal line of fusion is unbroken the ventral line of closure is incom- plete, being interrupted by the mouth and umbilicus primarily, and by the genito-urinary and anal openings secondarily. As is to be anticipated from these relations, malformations due to defective union along the anterior or ventral line of closure exceed in frequency those of the posterior or dorsal surface. Without entering into a detailed account of the mode of production of the numerous defects included within the first of the above sub-groups, a brief consideration of the most important of such defects may claim attention. The region of the face and neck is a favorite seat of such imperfect unions, a tendency readily appreciated when we recall the manner in which these parts are so largely derived from the tissue supplied by the visceral arches, together with the adjoining portions of the head. The most frequently observed defect of this group, the lateral labial cleft or harelip, results from the faulty uniou of the central naso-frental, or intermaxillary, pro- cess with the superior maxillary or upper division of the first visceral arch. Harelip may be uni- or bi-lateral, and may be associated with defective development of the adjacent bony structures, as maxillary and palatal cleav- age. When unilateral, harelip is more frequently lim- ited to the left side, in explanation of which the tendency of the embryo to lie upon the left side in its early stages has been assumed to predispose to the formation of dis- turbing amniotic folds. Conspicuous anomalies are pro- duced when the intermaxillary process fails to develop, the space between the ends of the superior maxillary processes appearing as a wide central labial cleft. Open naso-lachrymal ducts and oblique facial clefts are other forms depending upon defective union of the margins of corresponding embryonic furrows, while fissures of the cheeks, clefts, fistulae, and cysts of the lower lip and de- fective inferior maxilla are further instances of imper- fect fusion, or of insufficient formative material. The visceral furrows, as is to be anticipated, offer a product- ive field for defects of this class, as illustrated in the deviations about the external ear resulting from the im- perfect development of the first outer visceral furrow and its secondary tubercles. Persistence of the low'er vis- ceral furrow's gives rise to the laterally situated cervical fistula, those occupying the median plane resulting from the imperfect fusion of the visceral arches at their inner ends. The question as to the existence of a delicate epi- thelial'partition separating the external furrow from the corresponding inner pharyngeal pouch is still a subject of non-agreement. A number of authors agree with His14 in denying the existence of a free communication between the outer and inner furrows, unless artifically produced, while many others hold that secondary rupture of the epithelial partition takes place spontaneously and with- out violence after a variable length of time. Notwith- standing the retention of the epithelial septum during embryonic life, which condition the writer must con- tinue to regard as the usual one before birth, there seems to be no reason why this delicate partition may not dis- appear subsequently, especially when viewed in the evi- dence of such cases as those recorded by Sutton16' 16. The production of a complete median cervical fistula has been attributed by Marshall11 to the persistence of a rudi- ment of the median portion of the thyroid body, the thyro-glossal duct, which enlarges and subsequently opens on the free cutaneous surface. As opposed to this view, Kostanecki and Mielecki18, Kauthack19' s0, and others refer the fistula in question to a breaking through of the pharyngeal pouches into the still present remains of the sinus cervicalis. Diverticula and cysts also arise within the pharyngeal walls as vestiges of the visceral pouches. Imperfect approximation and fusion of the parietal plates, to which the ventral, body-wall owes its origin, results in defects varying from slight sternal clefts to gaps involving the entire line of ventral union. The causes leading to these defects are various and by no means free from complexity ; in addition to the more mechanical influences opposing the normal union, as the disturbing presence of intruding amniotic folds or of the unusual interposition of excessively enlarged, displaced, or abnormally adherent viscera, the effects of insufficiency or distortion of formative material, together with devel- opmental inertia, must likewise be recognized as active factors in causing the arrested unions. Excessive size of the heart is frequently the cause of imperfect closure of the thoracic walls, cardiac ectopia being sometimes associated with these defects. Likewise abnormal adhesions may limit the development of the ribs, forming lateral clefts through which a pulmonary hernia may appear. The same influences which prevent the perfect union of the anterior thoracic walls may affect the diaphragm to the extent of permitting the for- mation of diaphragmatic hernia, which may include the migration of a large part of the intestinal tract. 582 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Mal formations. Malformations While the thoracic clefts not infrequently are prolonged into the upper portion of the abdomen, it is in the lower or caudad part of the line of ventral union that the defects of closure occur with greatest readiness, a tendency find- ing its stimulus in the passage through the body-wall, at the umbilicus, of the several structures connecting the fretus with its external attachments. The normal con- ditions thus favoring incomplete union, the supervention of causes retarding closure, as amniotic adhesions or ex- cessive bulk or abnormal position of the abdominal vis- cera, may readily prevent the approximation of the ab- dominal walls and produce permanent fissures through which more or less extensive extrusion of the viscera may take place. Such imperfections of slight degree, involving only the umbilical ring, are of frequent occurrence ; especially re- lated to the patulous condition of the umbilical ring are the protrusions of the gut, either as the result of abnor- mal retention within the cord of that part of the intestine which, until the tenth week of foetal life, lies without the abdominal cavity, but subsequently is drawn within, or, more seldom, as the result of later secondary protrusion of the gut through the still open ring. A familiar ex- ample of the persistence of these foetal relations, to a slight and imperfect degree, is presented in the occurrence of Meckel's diverticula, where the retention of the lumen of the proximal end of the vitelline or umbilical duct may establish a communication extending between the lower portion of the ileum and the free surface at the umbilicus. In the majority of such cases, however, the diverticulum ends before reaching the umbilicus, being continued to the parietes as an impervious fibrous cord. The production of the various forms of funicular hernia probably follows the abnormal attachments of the vitel- line duct, which then, as pointed out by Ahlfeld, induces a continuous drag upon the loops of intestine within the cord, thereby preventing its retirement within the abdom- inal cavity. Closely associated with an abnormal position and con- sequent downward traction of the umbilical cord, clefts of the lower part of the abdominal wall, and even pelvic bones, may occur. Ectopia of the urinary bladder, re- sulting from the rupture of the allantois, due to over- distention, following the obstructed exit of the accumu- lated excretions owing to closure of the urachus without the formation of the usually substituted cloacal passages, is connected with these abdominal lesions, the vesical defect being frequently associated with abnormal adhe- sion of the gut. The altered relations of the parts involved in these malformations exert widely extended impressions, result- ing in secondary anomalies. Among such induced mal- formations are obstructed fusions of the Mullerian ducts due to the interposition of a gut attached to the bladder or of a distended allantoic stalk, and resulting in double uteri and vaginae in all grades of separation, from the mere suggestion of division, as expressed by a cleft uter- ine fundus, to completely isolated tubes extending from the oviducts to the vaginal orifice ; cleft pubes, with the attendant faulty development of the external genitalia, also follows the lesions in question. Imperfect \inion of the parts going to form these organs may produce the various fissures, as epi- or hypo-spadia, divided scrotum, etc., from which arise the conspicuous forms simulating hermaphrodites. Displacements of the abdominal vis- cera and even abnormal curvature of the vertebral col- umn, which latter may induce modifications in the forma- tion and position of the lower extremities, are, likewise members of the train of misfortunes referable to the clefts of the lower abdominal wall. Interruptions in the closure of the neural canal along the dorsal line of fusion occur, as already stated, less frequently than along the corresponding ventral line. Two localities-the cervical and lumbar regions-exhibit an inherent weakness in the walls of the neural tube, being the points at which union is last completed and at which, therefore, the tissues are least capable of resisting undue pressure from within ; the sharp flexures which occur at these positions of the canal are probably, as (SUPPLEMENT.) pointed out by His, responsible for the tardy closure and accompanying weakness. Corresponding with this pre- disposition, spinse bifida? are more frequently observed in these particular portions of the neural canal than else- where, those occupying the lumbar region, moreover, preponderating. Where the protrusion is small in size, the stretched and thinned out integument still suffices to invest the tumor ; with the enormous increase in the di- mensions of the latter sometimes seen, the skin no longer is capable of covering the protruding tumor, the sac in such cases being composed of the distended membranes of the cord alone. Concerning the mode of formation of spina bifida opinions vary ; the older and widely accepted view re- gards augmented intra-spinal pressure, referable to pri- mary hydrops, as the active factor, and the ununited arches and protruding Sac as results of a process of dis- placement largely mechanical. Other observers, on the contrary, regard these defects as the expressions of arrested development which owes its origin to deeply seated causes affecting the skeletal axis. The symmetry of the vertebral defects shows that they must originate at an early period of foetal life when formative processes were active in the differentiation of the primary material. The experimental investigations of Richter,21 likewise, do not support the view that the spinal dropsy or amni- otic pressure is to be regarded as the fundamental cause of spina bifida. The malformations involving the cephalic expansions of the neural tube are also the subject of divergent opin- ions. The older view, supported by Dareste, Marchand, Peris, and others, attributes to the amnion, as the result of the pressure and obstruction caused by its abnormal adhesions and constriction, the most important role in the arrest of development. Ahlfeld, on the other hand, considers that the primary condition is one of abnormal intracranial pressure which results in the rupture of the very early cerebral vesicles, followed by the absorp- tion and disappearance of the ragged edges of ruptured sac, so that later, when these cases usually first come under observation, the cranial basis lies exposed and the original conditions are masked. Opposed to these non-mechanical theories as to the mode of these malformations are the views of Ackermann," Quicken,23 and others, who regard these imperfect ce- phalic developments rather as the results of defective for- mative energy and insufficiency of formative material than as secondary defects induced by pressure. In view of the frequent association of these cephalic defects with those of the neural canal, it is highly probable that similar forces are responsible in both localities for the arrested development. As consequences of the imperfectly ex- panded cranial base, and the not infrequently associated vertebral defects, the proportions of the face and the direction of its axis are materially changed, thereby pro- ducing the striking "frog-headed" physiognomy so characteristic of an encephalic monster. Closely related to these deviations in the cephalic de- velopmental processes stand the variations in the closure of the anterior end of the neural tube which produce the conspicuous series of cyclocephalic monsters, whose brief consideration may here find place. Both the view that cyclocephali result from the fusion of two eyes originally distinct, and that ascribing them to failure of differentia- tion of the two eyes from a condition of primary unity, have been superseded by the more recent explanation by Dareste,24 by whom the cyclopian features are regarded as directly dependent upon the primary imperfect devel- opment of the anterior cerebral vesicle. The differentiation of the lateral diverticula, or optic vesicles, which under normal conditions are formed, is but partially accomplished, owing to the imperfect devel- opment of the anterior cerebral vesicle in consequence of the premature closure of the neural plates forming this portion of the nervous tube. As a result of this closure, an insufficient involution of ectoderm takes place where- by the amount of material available in the formation of the optic vesicles is greatly reduced. When this closure of the cerebral vesicle occurs very early but a single me- 583 Malformations. Malformations. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. dian optic vesicle is formed, resulting in the production of the characteristic feature of these monsters. In cases where the closure takes place later, affording greater opportunity for advanced development, two imperfectly differentiated optic vesicles are present, from which two eyeballs, more or less closely approximated, arise, the degrees of proximity atld fusion depending upon the completeness of the differentiation of the optic vesicles as separate sacs. The cause of the primary arrest of de- velopment affecting the anterior cerebral vesicle, Dareste is disposed to attribute to anomalous growth of the am- nion, in consequence of which the expansion of the brain vesicle is unable to proceed to the usual extent. As secondary defects, dependent upon the abnormally situated central optic vesicle and the faulty development of the anterior cerebral sac, deviations and displacements of the naso-frontal process take place with corresponding conspicuous changes in the face. The absence of the central process allows the approximation of the superior maxillary divisions of the first visceral arch, by whose fusion the oval opening assumes a characteristic trian- gular form. Immediately above the mouth the closely approximated, or single, visual organs take up their po- sition, the displaced naso-frontal process lying higher and often resulting in the development of the character- istic proboscis. The anomalies owing their production to the abnormal persistence of canals whose function ceases before or at the time of birth are usually inconspicuous, but, at the same time, may induce conditions incompatible with post-foetal life. The peculiarities of the foetal circulation are not infrequently retained as a patulous foramen ovale or pervious ductus arteriosus. Variations in the plan of suppression among the aortic arches of embry- onic life give rise to the conspicuous anomalies of the great vessels near the heart; not only are transposed aortae, double aortse, and deviations in the origin of the subclavian and carotid arteries to be referred to devia- tions from the usual fate of the embryonic aortic bows, but, likewise, the transposition of the associated viscera. Instances of the retention of the embryonic arrangement of the venous system are also occasionally seen, as in many anomalies of the great veins near the heart. The presence of Meckel's diverticula, and, in extreme cases, the formation of an artificial anus, find their explanation in the persistence of the lumen of the vitelline duct. Likewise, the retention of the allantoic stalk in a pervi- ous condition, instead of the usual transformation into the fibrous urachus, may establish an unnatural exit for the contents of the urinary bladder ; such conditions are usually induced by obstruction, during fcetal life, of the more usual channels. Partial retention of the lumen of the allantoic stalk may result in the formation of cysts. Imperfect obliteration of the thyro-glossal duct may con- tribute to the production of cervical fistulse. III. Malformations produced by fission, either partial or complete- a. Of the primary embryonal cell-mass ; b. Of the partially differentiated individual organs. The malformations comprising the third group-those derived by fission-include the most conspicuous results of developmental deviation, forming a series beginning with the limited fission implicating a single digit, and ending with the extreme division presented by those double monsters in which union is alone maintained by the limited isthmus of attachment, as between the ster- num, pelvis, or head. The production of double monsters has long been a subject of diligent study and ingenious speculation, and even at present it constitutes a biological problem re- garding many details of which there is still much differ- ence of opinion. The once generally accepted and brilliantly supported theory, that double monsters result from the fusion of two separate and independent embryos, may be regarded as now entirely obsolete, modern embryologists agree- ing, at least so far, that multiple monsters arise from a single ovum. Regarding the further question, however, as to whether (SUPPLEMENT.) these monsters originate by the union ot two originally distinct embryonic areas upon a single ovum, or whether they result by the cleavage of a single blastoderm, opin- ions still fail to accord. The former supposition recog- nizes primitive duality, followed by fusion, the latter primitive unity undergoing subsequent fission. In addition to the older authorities upholding the fusion theory, B. Schultze, Panum, and especially Dareste, have given this view their support, while Rauber, Gerlach, and others accept it with more or less im- portant modifications. Dareste, while accepting the doctrine of primitive duality, insists that union can only take place in the very earliest stages, and then only as the expression of a special inherent predisposition. The supporters of the fission theory number many of the most distin- guished older investigators, and prob- ably the majority of the embryologists of to-day. The fission theory, as pre- sented by Ahlfeld, one of its most ardent advocates, suffices for the ex- planation of all forms of double mon- sters. The primitive undifferentiated embryonic cell-mass may undergo cleavage, in the direction of the future embryonic axis, in varying degrees. When the division is complete, the two resulting halves lie at first paral- lel, and are capable, under favorable conditions, of developing into homo- logous twins ; when incomplete, the divided parts may subsequently separate, while the at- tached portions constitute the common bond of union either anterior, posterior, or middle, as illustrated ir the accompanying drawings (Figs. 386 to 389) of act ual double monsters of dif- ferent types of fission ob- served in the development of avian ova. By the vari- ations in the intensity of these forces all degrees of deflection, from a position of almost parallelism to one of extreme divergence, as head to head, is possible. Ahlfeld regards the fission theory as sufficient for the explanation of all forms of double monsters, and does not admit the necessity of seeking aid from other theories. Gerlach25 regards the production of double mon- sters as far more variable, and opposes the passive cleavage ascribed to the embryonic cell-mass by Ahlfeld, attributing, on the contrary, to the embry- onic trace an active partici- pation in the division, the controlling predisposition to which must reside with- in the cells even before differentiation. This " bi- furcation " Gerlach c o n - siders especially active in producing anterior or cephalic duplications ; the corresponding posterior or caudal cleavage is referred by this author to the partial union or "copulation" of separate but converging traces proceeding from the posterior margin of the germinal Fig. 386.-Chick Em- bryo of about Forty Hours, showing limited anterior cleavage. (Dareste.) vAf, hAf, cephalic and caudal folds of amnion; h, heart; o. primary otic vesi- cles. Fig. 387.-Goose Embryo of Seventy- two Hours, indicating the effects of coincident anterior and pos- terior cleavage ; the two resulting divisions are connected by the isth- mus of undivided tissue. (Reich- ert.) Ap, area pellucida: vh, an- terior brain vesicles; o, primary otic vesicles ; Mf, medullary folds ; ch, chord® of the divided parts. 584 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Malformations. Mal for (nations. area. Debierre26 and Klaussner21 also hold the fission theory as inadequate to account for all forms of double monsters; the former concludes that both fission and fusion may take part, while Klaussner declares that the genesis of such monsters depends upon primary plurality of the embryonic area, and upon fission with post-gener- ation. The inadequate observations on early mammalian double monsters, together with the fact that the young- est human double monster was already four weeks old (Ahlfeld), still farther adds to the uncertainty of conclu- sions regarding man and the higher types. Notwith- standing the incompleteness of our knowledge in many points concerning these interesting questions, it must be admitted, we believe, that to fission of the primary em- bryonic trace must be referred the origin of the great majority of the double monsters encountered, and that, in the present state of our knowledge, we are warranted in onic segments, thereby producing a third, which, in the case of complete fission, would form one of the group of homologous triplets; partial cleavage of one of the seg- ments would produce a composite monster of the triple type. Such cases must, obviously, belong to the rarest of anomalies, and when occurring would be prone to unequal development with the suppression of the weaker embryos. Multiple human monsters in excess of triplets have never been observed. When the almost entirely separated embryonic segments undergo equal develop- ment and growth, the resulting individuals may be capa- ble of maintaining an almost independent existence, as in the case of the celebrated Siamese twins ; not infrequently, however, the segments are affected by unequal develop- ment and growth, the disparity becoming more marked with time. From a condition of equality, the weaker embryo becomes more and more dependent upon its stronger mate, until the relations become pronounced as some form of parasitic monster* In the observation of the later stages of growth, when the condition of inequal- ity is already well emphasized, sight must not be lost of the fact that at an earlier period both embryos were of equal dignity, although the possible presence of a shape- less acardiacus attached to a moderately well-developed foetus at first glance seems little in accord with such condition. The explanation of the series of obscure parasitic mon- sters, represented by the different " inclusions," is found in the assumption of duplications, either posterior or an- terior, where, as pointed out by Cleland, the two seg- ments are primarily united at a point variably distant from the upper end of the vertebral column. With the subsequent unequal growth of the two embryos, the less developed finally comes to lie within the body of the stronger to an extent dependent upon the position of the primary union, and upon the stage of development and growth to which the weaker part attains. Where the " parasite " remains relatively free and well nourished, the relations between the two may approach those pre- sented by the classic example of the Genoese Colloredo, and by the young Hindoo, Laloo, now living and about twenty years of age. These " inclusions " present their extreme in the obscure tumors attached to some part of the head, as the hard palate (epignathus), lower jaw (polygnathus), orbit, and other parts of the cranium, in which cases the union ol the two embryonic segments is situated at the anterior ex- tremity of the vertebral axis, and the weaker segment has, either from the first under- gone but slight development, or, as advocated by Cleland, suffered a separation. The part remaining attached to the main stem becomes en- veloped within the tissues of the stronger embryo to con- stitute the contents of the tumor, the position of whose external attachments deter- mines the designation which it receives. In the case of the 'congenital sacral" tumors i somewhat modified pro- cess must be recognized, since, as held by Cleland, the jony parts within these tu- nors are the remains of the 'used adjoining lower limbs )f, at one stage, double sets )f extremities, resulting from ission involving the embryo is far as the sacrum. The adjacent left and right limbs >f the duplications remain undifferentiated and fused, ind, undergoing subsequent atrophy, remain as the con- ents of the sacral tumor ; it follows, therefore, that the imbs which develop really represent the right and Fig. 388.-Double Chick Monster of Forty-eight Hours. Marked an- terior cleavage has taken place, with subsequent divergence. (Gerlach.) Ap, area pellucida ; Av, area vasculosa ; V, V', if, M', II, IV, respectively the anterior, middle, and posterior primary brain-vesicles ; iff, the still widely open medullary folds; Ur, the somites or primary segments. accepting, provisionally at least, the explanations offered by this theory. The most pronounced effect of the cleavage forces re- sults in the complete division of the cell-mass into two separated portions. Each of these may undergo inde- pendent development, the two, under favorable condi- tions, developing into homologous twins, characterized by remarkable physical similarity and the same sex. In those cases, however, where the cleavage forces effect but partial division of the original embryonic mass, the production of the conspicuous double monsters takes place. The degree of the duplication varies from the slight splitting of the cephalic end of the notochord, the resulting condition presenting no external evidences of its existence and being only accidentally discoverable, to the almost unrestricted separation resulting from the co- incident anterior and posterior cleavage where, as in xiphopagus, a narrow bridge of remaining tissue alone establishes continuity. As an extremely rare occurrence, a repetition of the cleavage may take place in one of the separated embry- Fig. 389. - Chick Embryo of Thirty-six Hours, showing pos- terior or caudal cleavage. (Ahl- feld.) Mf, medullary furrow di- vided toward its caudal extrem- ity into the diverging grooves, separated by the median fold (amniotic (?) ), Zw; vAf, an- terior or head fold of amnion. 585 .malformations. Malformations. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. left members, not of the same, but of two pairs of ex- tremities. The included foetus ordinarily lies enclosed within a sac closely united with the surrounding organs ; from these latter blood-vessels form communic ations which supply the nutri- tion requisite for the exist- ence of the parasite. Should the remaining parts of the included em- bryo come to rest upon the actively growing tis- sues destined to form the sexual glands, these para- sitic structures become surrounded by the tissues of the future testicle or ovary, and later give rise to inclusions within these organs. These rare condi- tions must be clearly dis- tinguished from the rela- tively frequent dermoid cysts occurring within the testicle and ovary : while in the former cases the re- mains are parts of the atro- phic supernumerary em- b r y o n i c segments, ar- ranged with, at least, a suggestion of order, the contents of the dermoid cysts represent heteroge- neous, isolated, and usu- ally ectodermic, tissues of limited variety. Contrasted with the foregoing results of complete or partial dichotomy in- volving the entire embryonic cell-mass stand the limited duplications arising from the fission of the cell-areas forming the individual organs. Such duplications affect almost every important v i s c u s in the body. The assumption that the obstruc- tion caused by the folds of an abnormally a d - herent amnion is chiefly responsi- ble for the fre- quently observed examples of fission in polydactylism seems insufficient in ex- planation of these anom- alies. While, no doubt, such mechanical forces may result in important modifications, yet when we recall the dispropor- tionate infrequency of cleavage of those parts of the limb-buds most ex- posed to external influ- ences, together with the fact that numerous in- stances of polydactylism occur among the anam- niota, as the amphibians, and the conspicuous trans- mission of such anomalies by heredity, through sev- eral generations, it is evi- dent that the production of these anomalies lies in a (SUPPLEMENT much more deeply seated and less local cause. As ob- served by Pott,29 the conditions producing polydacty- lism, adactylism and syndactylism are closely related, being the variously modified expressions of the same in- herent differential forces that, under usual conditions, result in the separation of the common cell-area into the normal number of well-defined digits. Where these forces of differentiation and separation, which seem to be possessed by all parts of the embryo during some stage of embryonic life, are stimulated as by excessive pres- ence of formative materials, their action may be exerted far beyond the usual limits, resulting in repeated and extensive more or less perfect cleavage. These divisions commonly are limited to the distal segment of the em- bryonic limb, producing the frequently encountered supernumerary digits, fingers or toes ; much less frequent are divisions implicating the remaining segments, dupli- cations of the entire arms and legs being extremely rare. A remarkable example of cleavage of the upper extrem- ity is recorded by Burnett,28 where the entire arm has suffered repeated partial division. Excessive activity of the differentiating forces results in the cleavage of the cell-areas destined to become vari- ous parts of the body ; examples of such excessive ac- tion are particularly noticeable in the formation of such series as the ribs and vertebrae, as well as the muscles, vessels, and nerves, their production supplying the "variations" of the anatomical text-books. Many or- gans occasionally present more or less complete duplica- tions, either as the result of early fission of the primary cell-mass, or of secondary division induced by encroach- ments of neighboring tissues. Among the organs occa- sionally undergoing such cleavage are the tongue, uvula, epiglottis, bronchiae, pulmonary lobes, stomach, intes- tines, liver, gall-sac, pancreas, spleen, kidney, ureter, urinary bladder, sexual glands, and mamma?. In con- nection with the production of supernumerary mammary glands, the recent investigations of O. Schultze30 are very suggestive, since it is shown that special embryonic areas, or " milk-lines," extend on either side as far as the groin, the permanent glands resulting as the devel- opment of certain limited areas along these tracts. While the occurrence of mammary glands on the anterior sur- face of the body thus finds suggestive embryonal condi- tions, the instances of mammae situated on the thigh being also readily regarded as extensions of the primary milk-lines, the occurrence of supernumerary glands on the back, as sometimes observed, seems to call for fur- ther explanation. The assumed transplantation of the divided original gland-area seems less plausible than to regard the appearance of these glands in such unusual positions as the expression of perverted differentiation of widely distributed epidermal structures, the mamma arising as but the higher specialization of the ectoder- mal tissue producing sebaceous glands. Supernumerary mammary glands occur in men with far greater frequen- cy than is usually supposed, as showm by the examina- tions by Bardeleben31 ; the apparently greater frequency in women arises from the fact that the secretion of milk within these structures, after childbirth, calls attention to the existence of anomalies never before suspected. The Artificial Production of Malformations. - The origin of double and other monsters has always pre- sented so much of interest, but at the same time of un- certainty, that the hope of adding to our understanding of the methods and conditions of their production long ago induced observers to undertake the artificial produc- tion of such malformations. For evident reasons, these attempts at experimental investigations have been limited to the lower forms. While the results of such investiga- tions cannot be directly applied to man, yet they are of value in pointing out facts which possess a probable bearing upon similar processes taking place in the higher mammalian types. In applying the deductions derived from experiments with the lower classes of ver- tebrates, the inherent differences in the processes as af- fecting the totally segmenting alecithal mammalian ovum and the partially segmenting telolecithal eggs of the fishes and birds, must not be forgotten. Fig. 390.-Double Chick Monster Re- sulting from Posterior Cleavage and Subsequent Great Deflection of the Separated Segments. (Rau- ber.) Such monsters suggest to some authorities the assumption of the possible occurrence of the fusion of at first isolated em- bryos. Mr, medullary furrows ; o, primary otic vesicles; Ap, area pellucida. riG. 491.-Multiple Embryos Con- tained within two Closely Ap- proximated Arete Pellucid® Oc- curring in Chicken's Ovum, after sixty Hours' Incubation. The smaller area contains a sin- gle embryo, the larger an embryo which has undergone complete posterior cleavage. (Rauber.) Mf. medullary furrows ; pr, pr', pr", primitive streaks ; etc, me- dian ridge: Av, area vasculosa. 586 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Mal lor matiou s. Malformations. The possible causes influencing the production of mal- formations may be arranged in three groups : I. Anomalous conditions of the sexual elements : a, Of the female element-the ovum ; b, of the male element-the spermatozoon ; c, of the union of sexual elements, resulting in abnormal fecundation and seg- mentation. II. Direct mechanical impressions. III. Anomalous conditions of environment of the em- bryo, including thermic and respiratory changes. it is evident that the experimenter has little control over the modifying conditions embraced in the first group, and that these, for the purposes of his attempts at artificially inducing the production of malformations, must be largely ignored. Of interest are the observa- tions of Born32 on fish eggs, since the fact seems estab- lished that the ova of certain females showed especial tendency to yield double monsters, the predisposition re- maining practically constant and unchanged notwith- standing variations in the source of the fertilizing male elements. The segmentation of these ova appeared to be normal. So far, there is no reliable evidence pointing to anom- alous conditions of the male sexual elements as being responsible for abnormal development. The double- headed spermatic filaments not infrequently seen, and to which the production of double monsters has some- times been attributed, are to be regarded as variations in the development of the spermatic elements themselves, rather than as cells endowed with unusual powers of fertilization. The connection between the entrance of more than a single spermatozoon into the ovum at the time of fer- tilization, and the induction of abnormal segmentation and subsequent maldevelopment. has been maintained by Fol,33 and formerly also by O. Hertwig ; the more recent investigations of the Hertwig Brothers,34 however, do not support the supposition that polyspermia produces double monsters. The relation between double sper- matozoa and the imperfect expulsion of the second polar body as anticipating the formation of double monsters, as suggested by Windle,35 lacks further confirmation ; and so does, likewise, the hypothesis advanced by Da- reste,36 that multiple pronuclei follow the penetration of more than one spermatic element. The possibility of influencing development by the ap- plication of mechanical impressions early invited the consideration of experimenters. These mechanical in- fluences, brought to bear upon the ovum with a view of modifying development, have been : a, Abnormal position ; b, disturbed equilibrium ; c, direct mechanical injury. The elder Geoffroy Saint-Hilaire, by his success in producing malformations by incubating eggs placed in abnormal positions, has merited the distinction of being regarded as the founder of experimental teratology. Thirty years later, Liharzik 37 succeeded in distinctly modifying chick embryos by change of position during the latter half of incubation, when the chick normally lies with its axis corresponding with the longer diameter of the egg, the head usually occupying the broader end of the egg. Recognizing this normal relation, Liharzik placed the eggs vertically, in some cases with the larger end uppermost, in others with this extremity down. The increased nutrition affecting those parts, whether head or tail, which were dependent and, therefore, aided by gravity, was manifested by the distinctly recognizable increase in size of those portions which had occupied the lower end of the egg. Dareste 38 also obtained positive evidence of influenced development by adopting the ver- tical position, while, more recently, Strahl and Gasser 39 fixed the yolk so that development proceeded while the germinal area lay beneath, and thereby produced a par- tial inversion of the viscera which, apparently, depended upon the abnormal position for its cause. The disturbing influences of violent agitation have long been known and successfully applied to the pro- duction of malformations by Valentin, Knoch, both the elder and younger Geoffroy Saint-Hilaire, Lombardini, (SUPPLEMENT.) and Dareste. The latter experimenter observed that when eggs are incubated immediately after violent agitation, as after railroad transport, they usually soon die, while, on the contrary, if a period of rest intervene before in- cubation development proceeds normally. Eggs vio- lently shaken by a machine for some twenty minutes before incubation gave rise to many malformations, in- cluding exencephalus, cyclocephalus, spina bifida, etc. Some eggs, however, notwithstanding their maltreatment, passed through the cycle of normal growth. Attempts at still more profoundly influencing the course of development have been made by the direct in- jury or mutilation of the early embryonic cell-mass. Schrohe40 incised and punctured the germinal area with the hope of producing double monsters, but with the results of inducing but single deformities. Rauber's attempts at causing the formation of double monsters by division were also negative ; his conclusions, that it is not possible to produce such malformations by mechani- cal injuries, are endorsed by Panum and Dareste. In this connection the quite recent experimental investigations of Driesch41 on the segmentating ova of echinus, and, still later, of Wilson 42 on the earliest stages of amphioxus, are extremely suggestive. In these experiments, by the separation of the blastomeres of the earliest stages of segmentation, it was possible to obtain multiple embryos, either as isolated individuals, or, as often happened in the experiments on amphioxus, as double monsters in various stages of separation. These investigations are important as emphasizing the primary differential equality of the early blastomeres, a single segmental element, in some cases observed by Driesch, sufficing to produce a perfect individual of diminished size. Further attempts to produce anomalous embryos have been carried out by Warynski and Fol, who applied the thermo-cautery to embryos, and concluded that coelosomia and symelia are the only malformations directly referable to the amnion ; Gerlach 43 also cauterized the anterior end of embryos with the view of producing exencephalus, but with only partially satisfactory results. Electricity in various forms has been employed by Lombardini, Maggiovani, Windle, and others, but this agent seems capricious and uncertain in its results. The experiments whereby the supply of heat and oxy- gen has been affected have yielded the most important results. As long ago established by Reaumur, the most favorable temperature for incubation is about 40° C. By keeping eggs at a temperature of 41° to 42° C., Dareste was able to obtain in twenty-four to thirty hours, em- bryos which had attained a development corresponding to that usually reached only at the third day; on the other hand, a reduction to 30° C. retarded development fully one-half. Variations in the form and development of the germinal, and especially the vascular, area seem frequent accompaniments to these thermal changes. A continuous slight elevation above the normal temperature hastens development but retards growth, and often re- sults in the production of dwarfs. Out of seventy-eight eggs incubated at a reduced temperature, Richter44 ob- tained five malformations, three spinae bifidae with exen- cephalus, and two exencephali alone. Modifications in the amount of oxygen having access to the egg have been carefully studied by a number of experimenters. While the effect of an abnormally abun- dant supply of oxygen must be regarded as still unde- termined, the deleterious influences of a diminished supply are conclusively established. In the experiments affecting the respiratory interchange of gases, advantage has usually been taken of the fact that through the po- rous egg-shell the air gains access to the ovum. Various devices for rendering the shell more or less impervious to gases have been employed, the favorite method being the application of varnish. Dareste has called attention to the precaution of coating freshly-laid eggs, since after the formation of the air-space the contained oxygen suf- fices for development for a certain length of time. The elaborate experiments of this author confirmed the in- vestigations of the earlier observers as to the efficiency of these methods of influencing development, especially" the 587 Malformations. Malt. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. development of the vascular area and the blood-corpus- cles, thereby establishing an anaemic condition. Dareste concluded, moreover, that the restricted supply of air bore no direct relation to the malformations. The methods adopted by Gerlach in his experimental investigations are of especial interest from the fact that the results are more nearly positive than those of any former experimenter. Recognizing that the growth and proliferation of cells are always influenced by the supply of oxygen, Gerlach assumed that by restricting the inter- change of gases to a V- or Y-shaped area, so placed that it would correspond to the anterior part of the germinal area, it might be possible to alter the arrangement of the cells', by compelling a new disposition in their search after oxygen, to the extent of producing an anterior bi- furcation. Of sixty eggs so treated, nineteen exhibited variations which Gerlach attributed directly to the modi- fied conditions of respiration. Of these deviations, two were unmistakable anterior duplications. It is to be re- membered, however, that such malformations probably occur, under ordinary conditions, more frequently than supposed, and the direct causal relation between the two fissions and the especial treatment of the eggs is by no means beyond question. Gerlach and Koch,45 and later Koch,46 studied the con- nection between restriction of air and the production of dwarfs, but they conclude that the retarded growth con- sequent upon such conditions results not in true dwarfs, but only in poorly developed embryos. Review of the foregoing experiments in the artificial production of malformations emphasizes the fact that certain disturbing influences, as violent agitation, marked thermic variations, and restricted supply of oxygen, are all forces capable of profoundly impressing the early embryonic cell-mass, and of secondarily inducing more or less conspicuous malformations. And further, as pointed out by Dareste, and more recently emphasized by Windle,41 that there is no definite relation between the nature of the disturbing influence and the character of the resulting malformation, the same anomalies being produced by various methods. On the other hand, not- withstanding a wide variation in the nature of the dis- turbing agents, the deviations of development are largely those referable to impaired nutrition, as expressed by the defective development of the vascular system. Whatever may be the success of future investigators in producing at will certain types of malformations, it must be admitted that at present, at least, experimental tera- tology is capable of yielding results which are suggestive rather than definite. George A. Piersol. (SUPPLEMENT.) 22 Ackermann : Die SchMeklifformitat bei der Encephalocele congen- ita. Halle, lb82. 3'Quicken: Zur Genese der Hemicephalie. Halle, 1885. 1811 ^lllCSte ' formation de la cyclopie, Ann. d'Oculistique, 28 Gerlach : Die Enstehungsweise derDoppelmissbild. d. hbheren Wir- belth. 1882. 36 Debierre : La theorie de la monstruosite double, Arch, de Physiol, norm, et patholog., 1890. 27 Klaussner : Mehrfachbildungen bei Wirbelthieren. Miinchen, 1890. 28 Charpentier: Wood's Cyclopaedia of Obstet. and Gynaec., vol. iii„ p. 327. Figured also in article " Teratology " in this Handbook. 29 Pott : Ein Beitrag zu den symmet. Missbild. d. Finger u. Zehen, Jahrbuch f. Kinderheilk. Bd. xxi., 1884. 30 Schultze, O.: Ueber die erste Anluge des Milchdrtisenapparates, Anat. Anzeiger, Bd. vii., 1892. 31 Bardeleben : Hypertheile bei Mannern, Verhand. d. anatom. Ge- sellschaft, 1892. 32 Born : Ueber die Furchung des Eies bei Doppelbiklungen, Breslauer arzl. Zeitschrift, 1887. 38 Fol: Sur le commencement de l'henog6nie chez divers animaux, Archiv. d. sci. phys. et anat. de la bibl. univ. Revue Suisse, tome Iviii., 1878. 34 Hertwig, O. und R. : Ueber die Befrucht. u. Theil. d. thiersch. Eies unter dem Einfluss ausser Reagentien. Jena, 1887. 35 Windle : On the Origin of Double Monstrosity, Journal of Anatomy and Physiology, vol. xxiii., 1889. 36 Dareste : Nouvelles recherches sur le mode de formation des mon- stres doubles, Coinpt. rend., tom. civ., 1887. 37 Liharzik : Das Gesetz des mensch. Wachsthums, u.s.w. Wien, 1858. 38 Dareste : Production artiticielle des monstruosites. Paris, 1876. 32 Strahl und Gasser: Ueber kiinstliche Production von Situs in- versus beim Vogel, Anatom. Anzeiger. 1888. 40 Schrohe : Untersuch. iib. d. F.influ,ss median. Verletzungen auf d. Entwick. d. Embryo. Giessen, 1862. 41 Driesch : Entwickelungsmechanisches, Anatom. Anzeiger, Bd, vii., 1892. 43 Wilson, E. B.: Artificial Production of Twins and Multiple Embryos in Amphioxus, Proc. New York Acad, of Sciences, October. 1892. 43 Gerlach : Ueber die Entstehungsweise d. vordern Verdopplung, Deutsch. Archiv f. klin. Med., Bd. xlii., 1887. 44 Richter : Ueber die experiment. Darstell. der Spina Bifida, Anatom. Anzeiger, 1888. 45 Gerlach und Koch : Ueber die Production von Zwergbildung in Hiih- nerei auf experiment. Wege, Biolog. Centralblatt, 1883. 43 Koch, H.: Ueber die kiinstliche Herstell. von Zwergbildungen im Hiihnerei, Inaug. Diss.. Erlangen, 1884. 47 Windle: Investigations in Artificial Teratology, Proc, of Birming- ham Philosoph. Society, vol, vii., pt. ii., 1890. MALT (Maltum, U. S. Ph., 1880). The official direc- tions given in the United States Pharmacopoeia for the preparation of this product are as follows : "Malt, in coarse powder, not liner than No. 12, one hundred (100 )parts ; water, a sufficient quantity. Upon the powder, contained in a suitable vessel, pour one hun- dred (100) parts of water and macerate for six hours. Then add four hundred (400) parts of water, heated to about 30° C. (86° F.), and digest for an hour at a tem- perature not exceeding 55° C. (131° F.). Strain the mixt- ure with strong expression. Finally, by means of a water-bath, or vacuum-apparatus, at a temperature not exceeding 55° C. (131° F.), evaporate the strained liquid rapidly to the consistence of thick honey. Keep the product in well-corked vessels in a cool place." The historical references, detailed description of the processes of manufacture and peculiarities of the finished product, as given by Professor Bolles (Reference Hand- book of the Medical Sciences, Vol. IV., 1887, p. 637), are sufficiently full for our present purpose, and need not therefore be touched upon. The almost universal em- ployment of malt preparations, especially liquid malt- extracts, by physicians and by the laity, however, seems to warrant a critical study of their value from a thera- peutic standpoint. This naturally implies an investiga- tion of the composition of malt, its properties as a food- substance from a physiological point of view, and finally, an estimate of its virtues alone, or combined with other medicaments, in the treatment of disease. And, inasmuch as there is a popular demand for these products, some reference should also be made to adulteration, and the addition of foreign substances-principally antiseptics, to prevent fermentation. Composition.-The manufacture of malt consists es- sentially of four different processes, viz. : Steeping, couching, flooring, and kiln-drying, which result in de- creasing the weight of the grain (about 20 per cent.), but are attended with an increase in bulk (3 to 8 per cent.). The entire manipulation should be considered as succes- 1 Beach : A Giant Birth-the Child Weighing Twenty-three and three- quarter Pounds, Medical Record, March 22, 1879. 2 Kollmann : Die Kiirperform mensch. normal, u. patholog. Embry- onen, Archiv f. Anat. u. Entwick., 1889, Sup. Bd. 3His: Anatomie mensch. Embryonen, Theil ii., pp. 99, 1882. 4 His : Offeue Fragen der path. Embryologie, Festschrift Rudolph Virchow, 1891. 8 Claudius : Die Entwick. d. herzlosen Missgeburten, Kiel, 1859. 3 Ahlfeld : Die Missbildungen des Menschen, 1880-82. 7 Koch, G. W. : Ueber einen mensch. Acardiacus, Archiv f. Gynakol., Bd. xxvi., 1885. 8 Dareste : Production artiticielle des monstruosites. Paris, 1876. 9 Panum : Beitrag zur Kenntniss d. physiol. Bedeutung d. angebor. Missbildungen, Virchow's Archiv, 1878. 10 Peris : Lehrbuch d. allgem. Pathologic, Theil ii., 1879. 11 Breus: Zur Lehre von den Acardiacis, Wiener med. Jahrbiicher, 1882. 12 Cleland: On Birds with Supernumerary Legs, and on Abcaudal Fission and Acephalus, Memoirs and Memoranda in Anatomy. London, 1889. 13Gebhard: Ein Beitrag zur Anatomie der Sirenbildung, Archiv f. Anat. u. Phys., 1888. 14 His : Mittheilungen zur Embryol. d. Saugeth. u. des Menschen, Ar- chiv f. Anat. u. Phys., 1881. 16 Sutton : Brachial Fistula, Cysts, Diverticula, and Supernumerary Au- ricles, Journal of Anatomy and Physiology, vol. xxi.. 1887. 13 Sutton : Evolution and Disease. New York. 1890. 17 Marsh all: The Thyro-glossal Duct, or "Canal of His," Journal of Anatomy and Physiology, vol. xxvi., 1891. 18 Kostanecki und Mielecki: Die Angebor. Kiemenfisteln d. Menschen, Virchow's Archiv, Bd. 120 u. 121, 1890. 19 Kanthack : The Thyro-glossal Duct, Journal of Anatomy and Phy- siology, vol. xxv. 20 Kanthack : Complete Cervical Fistulas, Journal of Anatomy and Physiology, vol. xxvi. 21 Richter: Ueber die experimentelle Darstell. d. Spina Bifida, Anatom. Anzeiger, 1888. 588 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Malformations. Malt. sive steps of the same operation, since the malt contains, in somewhat altered arrangement, the substances found in the grain ; malting merely effects the transformation of these substances, through the influence of heat, moist- ure and the amylolytic action of diastase, an unformed ferment (enzyme) which is a constituent of malt to the extent of from one to two per cent. (Hagar). Through the action of diastase-manifested within an hour after grain is put to steep-whose properties are similar to that of ptyalin from the saliva and amylopsin from the pan- creas, the insoluble starch of barley is converted into dextrin and glucose - sometimes called grape-sugar. Thus, the outline of Proust (loo. cit.) shows that malt contains nineteen per cent, less starch and cellulose than barley, ten per cent, more sugar, eleven per cent, more dextrin, while the amount of gluten is lessened by two per cent. It should be stated in this connection that, while the object of " malting" is to produce the maxi- mum of sugar by the action of diastase, it is not desirable that this action should be entirely exhausted, and there- fore, at a certain stage of the operation, this process is arrested by kiln-drying; under favorable circumstances -heat and moisture-this fermentation is re-kindled. Qualitative tests for diastatic activity are extremely simple. A quantity of malt is added to hot water and dissolved by constant stirring ; then a small portion of starch is added in like manner, and in the course of a few minutes the iodine test is applied. The soluble extract in a good malt suitable for brewers' use, is, according to Ure, 66.8 per cent. ; it contains in addition, insoluble matter, 26.7, and moisture, 6.5 per cent. To determine the proportion of insoluble matter, a definite quantity is measured by weight and dried by heat from boiling water ; the remaining powder is then put in cold water and heated. The soluble extract is then decanted off and the residue dried and weighed and the percentage calculated. The process of diastatic fermentation is by hydration (Hoppe-Seyler), as will appear later on. The amylolytic power of diastase is about the same as the proteolytic power of a good pepsin ; that is, diastase will convert starch into glucose in the proportion of 1 to 2,000, while pepsin converts albumin into peptone in the same pro- portion, although recent improvements in the manufac- ture of pepsin enable manufacturers to produce a much more concentrated article (I to 6,000). Liquid malt-extracts are simply weak solutions of ordi- nary malt, very much like beer, and usually contain a variable proportion of alcohol, a small percentage of carbonic acid, with more or less solid extract, but for none of them can be claimed any distinct diastatic prop- erty. These preparations hold in solution the products of diastatic activity, dextrin and sugar, which renders them " sweet" and palatable, while the alcohol is not in sufficient amount to interfere materially with the proper performance of the digestive functions; indeed, in the case of elderly persons, it may prove a decided benefit. Carbonic acid is also acceptable to the stomach ; but the percentage of " solid extracts " in these products furnishes no criterion as to their intrinsic value, as will be shown presently. From an examination and analysis of thirteen different samples of liquid malt-extracts, Leffmann (Medical News, January 28, 1893) found that all save one contained alcohol in small proportion-none as high as eight per cent., and that the solid extract ranged from 5.1 grammes to 16.06 grammes for each 100 c.c. Moreover, three of the samples contained appreciable amounts of salicylic acid. Adulteration.-The temptation to sophisticate malt arises from the great care required in the process of malting ; if the diastatic power be destroyed by excessive heat, the malt possesses no nutritive or digestive value. Again, in sections of the country where malting is extensively carried on, manufacturers may employ "ungerminated" grain, i. e., grain that has been sub- jected to " heating," and has thus lost its vitality. As a result of wet seasons, therefore, malt may be of a very inferior quality - possessing but slight diastatic (SUPPLEMENT.) power, yet showing a large percentage of insoluble matter. Most serious objections are urged against the employ- ment of salicylic acid as an antiseptic, since it is harmful if taken in too large quantities or too long continued, and besides, like all other antiseptics, it arrests or suspends diastatic activity. Now, while this is true in general, it may not apply uniformly to malt-takers and beer-drinkers, because we know that even in the absence of diastatic power this class generally present a rotund, florid, some- times a bloated appearance-due to the deposit of fat from the absorption of sugar-and frequently suffer from rheumatic affections ; hence the introduction of salicylic acid free from impurities may possess negative value, (1) by enacting the role of an antiseptic in the alimentary ca- nal, (2) by lessening the diastatic activity, thereby prevent- ing the rapid conversion of starch, and (3) by its influence upon the rheumatic diathesis. This leaves, then, for the liquid malt-extracts containing salicylic acid, nothing of special value except the converted sugar and a small pro- portion of alcohol. Incompatibles.-The following table (after Hermann Meyer and Brunton) is introduced to show the strength in watery solution of the different drugs which arrest the action of diastase, from which it will be observed that, while chloroform and creasote, even in saturated solution, have very little or no deleterious effect, corrosive subli- mate in a solution so weak as 1 to 50,000 destroys the fer- ment. Thus salicylic acid in the proportion of one grain to ten ounces (approximately) is sufficient to arrest the action of diastase : Alcohol. 1 to 3. Corrosive sublimate, 1 to 50,000. Benzoate of soda, 1 to 100. Creasote, no action in sat. sol. Benzoic acid, 1 to 1,025. Eucalyptus oil, acted only in ex- Borax, 1 to 100. cess. Bromine, 1 to 5,070. Glycerine, 1 to 2. Carbolic acid, 1 to 30. Iodine, 1 to 4,125. Chloride of lime, 1 to 6,613. Mustard oil, only lessens action Chlorine, 1 to 7,411. in sat. sol. Chloroform, slight action in sat. Salicylic acid, 1 to 5.100. sol. Sulphurous acid, 1 to 8,600. Copper sulphate, 1 to 6.500. Thymol, slight action in sat. sol. Physiological Action.-From the preceding remarks it will be apparent that there is comparatively little to add in regard to the physiological action of malt, either from the standpoint of the clinician or from that of the physi- ologist ; and yet that little is of paramount importance. Malt performs a twofold action in that it is a digestive and nutrient, its virtues being augmented by hydration. Digestibility is the prime element in all food-stuffs, but concentration may seriously interfere with absorption ; hence the importance of dilution by water, which is the most efficient medium for the transmission of pabulum through the secreting structures of the alimentary tract (endosmosis). Thus, while concentration is an impor- tant factor entering into questions relating to the manu- facture and transportation of food products, the very opposite is essential to insure rapid absorption and easy assimilation. But the increased consumption of carbohy- drates, while it increases the amount of fat, is at the ex- pense of muscular structures which require nitrogenous material for the maintenance of their integrity, and therefore, too much dependence must not be placed upon the apparent gain secured by the administration of malt and predigested foods of this character. Indica- tions of their unfavorable effects will be manifested by acidity, hepatic and cardiac derangements, and constipa- tion, along with mental hebetude and other evidences of imperfect metabolism. Contra-indications to the employment of malt prepara- tions in the treatment of children's diseases, more especial- ly those peculiar to summer and autumn, should be no- ticed, viz.: evidences of fermentation in the stools. When this condition is present, carbohydrates must be omitted and nitrogenous food substituted. The dangers arising from the small percentage of alco- hol in the liquid malt-extracts have been unduly magnified, as we have ample evidence of its value as a reconstructive. In suitable amounts-with meals-alcohol improves the 589 malt. Massage. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) appetite, favors digestion, lessens the elimination of phos- phorus and promotes the excretion of urea, thus en- hancing muscular capacity ; but we must bear in mind, also, that alcohol lessens oxidation-a conservative process in certain wasting diseases-although an effect to be avoided in health. Its obtunding influence upon the nervous system is likewise of medicinal importance, and in the administration of malt preparations we should never lose sight of the physiological functions of the organism, our sole object being to restore and maintain its integrity by the exhibition of remedies adapted to its wants. There is still another important factor to be considered in connection with the physiological functions of malt. For example, a considerable percentage of cod-liver oil can be incorporated with it in such a manner that the compound is tolerably stable while freely miscible with water, and, therefore, readily assimilable by the digestive apparatus. Now, bearing in mind that malt contains more or less gluten, perhaps a little dextrin, together with some unconverted starch and insoluble extract, it is not unreasonable to believe that under normal conditions the contents of the intestine may approach the type of a mu- cilaginous substance, possessing cohesive properties, and whose viscosity will prove of value in preventing the ab- sorption of poisonous products from the alimentary tract. Physicians readily appreciate the value of starch enemata in irritable conditions of the lower bowel, al- though but few understand the modus operandi by which these benefits are secured. Starch enemata are of ser- vice, not merely because they have a quieting effect upon the terminal filaments of sensory nerves in the mucous structures, but rather on account of their adhesive quali- ties, which enable them to lay hold of poisonous sub- stances in the course of elimination, thus preventing them from coming into contact with the delicate and in- flamed tissues. While the old idea has long been accepted as a clinical fact, it was nothing more than a temporary hypothesis or make-shift, and is promptly set aside to make room for the scientific fact upon which it depends. And just here should be pointed out the marked simi- larity or analogy between the conditions which obtain in the small intestine when malt is administered and that of the lower bowel when a starch enema is introduced. This explanation not only sheds new light upon the inci- dental physiological action of malt, but it puts the entire theory of the therapeutic action of emulsions upon a sci- entific basis, in keeping with the results of clinical obser- vation, Heretofore the causes which were actually responsible for the wonderful improvement following the exhibition of comparatively small quantities of malt, cod-liver and petroleum oils, as well as other remedies in the form of emulsion, have been scarcely realized, be- cause the physiological functions of the emulsionizing agents were overlooked, or but imperfectly understood. Notwithstanding the fact of its being a negative virtue, it is, nevertheless, a factor of material significance. Therapy.-The most important therapeutic applica- tion of malt consists in its employment for the relief of intestinal affections dependent upon imperfect intestinal digestion of starchy foods and subsequent fermentation. In this class of cases the carbohydrates should be re- stricted, bread only being allowed, and the patient in- structed to masticate it thoroughly in order to incorporate with it the ptyalin of the saliva, which serves to break up the starch granules before entering the stomach. Oc- casionally amylopsin may be added with benefit. This method of treatment will be found available in a very large number of cases of intestinal indigestion associated with chronic disease, especially pulmonary affections, be- cause, as has already been shown, carbohydrates are fat- producers. They do not, however, increase the capacity of the muscular system, and may, therefore, do harm by lessening oxidation and obstructing elimination. Short- ness of breath, cardiac weakness, or hepatic insufficiency with acidity of the stomach and diminished urinary ex- cretion demand their prompt discontinuance and a com- plete re-arrangement of the dietary. Malt enjoys deserved popularity as an adjuvant in convalescence from protracted illness, as an auxiliary and digestive in the case of nursing women, and to a limited extent in the treatment of all debilitated conditions of the system, but its continuous or indiscriminate use will eventually result disastrously. Like all other remedial agents, its medicinal employment requires the discrimi- nating judgment of the conscientious and intelligent physician. In the treatment of summer diseases, in both adults and children, malt possesses a high degree of utility, but it is only adapted to the cases in which the stools are putrid and foul-smelling. Where the stools are sour-smelling, due to starchy fermentation, malt and malted products are of secondary importance, as they have no influence upon the micro-organisms or other poisons associated with the intestinal disorder. Indeed, there is good reason to believe that the popular method of treating this class of affections by the exhibition of "barley-water''' has been productive of greater mortality rates than would have occurred had all treatment been abandoned. Science ab- solutely condemns the practice, and clinical observation emphatically indorses her teachings. The personal ex- perience of Dr. Benjamin Ward Richardson, published in the ^Esclepiad about a year ago, covering the untoward effects of oatmeal and barley-water, should be critically studied by every general practitioner. Administration.-Malt (U. S. Ph.) may be given in doses of one or two drachms, either with meals or two hours later. Liquid inalt-extract should be given with meals-one or two wineglassfuls. To meet special demands in the case of malnutrition, malt may be combined with a number of reconstructive medicaments, as follows: Malt with quinine, iron, and strychnine ; malt with hypophosphites ; malt with pep- tone; malt with cod-liver oil-but not to exceed the proportion of ten per cent. John Aulde. MALVERN. A spa of ancient repute in Worcester- shire, England. Location.-Malvern is prettily situated in a beautiful part of Worcestershire, at an elevation of five hundred and twenty feet above the sea. Bradshaw says that the town of Malvern is beautifully situated on the slopes of the Malvern Hills, which rise to the height of fifteen hundred feet above the sea-level. These hills are tra- versed by roads and paths easy of ascent. From their summit a succession of the grandest and most picturesque views in the United Kingdom, embracing twelve different counties, can be obtained. The town consists of Great and Little Malvern, which are about three miles apart. The picturesqueness of the site and surroundings of Malvern have been celebrated in prose and verse by Byron, Walpole, Southey, Brown- ing, and Macaulay. The Malvern air is dry and bracing, the climate tonic and stimulating, and the temperature equable. The drinking-water is of absolute purity and softness. The death-rate is low, being only 18.85 per 1,000. The sani- tary arrangements are based on the best scientific prin- ciples. Over fifty thousand persons visit this spa during the season, which lasts from May to October. Access.-Malvern is one hundred and twenty-nine miles from London, and can be reached in about three hours by rail. Analysis.-The Malvern waters are faintly alkaline and earthy. Its brine baths are famous. The two springs of Malvern are St. Anne's and the Holy Well. Indications.-The waters and saline baths of Malvern find their chief employment in cases of rheumatic gout and rheumatism, and their various sequelte and compli- cations ; also in scrofulous disorders, neuralgia, sciatica, lumbago, etc. ; swellings of the joints, contractions and anchylosis, paralysis, morbus Brightii, bronchial affec- tions and chest complaints, skin diseases, old wounds, and ulcerations. Edmund C. Wendt. MARGATE. One of the best known and most popular seaside resorts in England. Margate was once fashion- able, but Ramsgate has outstripped this city by the sea in 590 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Halt. Massage. that particular. Margate is in Kent. It begins in a valley and stretches up the slope of a hill. It has a famous pier, and in many other respects resembles our own Coney Island. Though quite open and exposed to try- ing winds, Margate is a healthy place, and the air there is remarkably keen and bracing. The famous Clifton baths, formed out of a cliff, are one of the main attractions of the beach, which is a fine sandy one. Margate is only two hours by rail from London, and about four hours by river steamer. Dr. Yeo speaks of Margate as follows (" Climate and Health Resorts") : ''Although often associated in men's minds with the neighboring resorts on the south coast, it must not be for- gotten, in estimating the special qualities of the climate of Margate, that its aspect is not to the south, nor to the east, but to the north or northeast. Whoever will take the trouble to look at a map of this part of the coast of the Isle of Thanet will see that Margate has a decidedly northerly or northeasterly aspect. In this respect it dif- fers entirely from the neighboring coast town of Rams- gate, which is so placed in an indentation of the coast- line as to look southeast. From this difference of aspect it not infrequently happens that the local weather differs considerably in these two places, only a few miles apart, for a storm may be raging at Margate which is scarcely felt at Ramsgate. It happens also from this northerly or northeastely aspect of Margate that during the prevalence of the northeasterly winds of spring it is one of the very few conveniently accessible seaside resorts where, during that season, pure sea-air can be obtained. For the pre- vailing northeast winds blow directly over the North Sea and the northern portion of the British Channel on to Margate and the line of coast of which it forms a part, whereas during the same season the prevailing winds at the resorts on the southern coast are land winds and blow' off the land out to sea, driving off, as it were, the sea air -hence, I take it, the great value which Margate air is known to possess in scrofulous affections. " It has a chalk subsoil, and the ground quickly be- comes dry after rain. The water supply is abundant and pure. " The best residential part of the town is on the Cliff, where the Cliftonville Hotel stands ; but the cheaper hotels and lodging-houses are on the lower ground, near the harbor and pier. " The drainage of the higher ground is better than that of the lower level, which is not all that could be wished. " Margate is too windy for cases of chest disease, ex- cept in the summer months, but it is especially beneficial to cases of scrofulous disease in children and to those of convalescence after surgical operations. This fact has led to the establishment there of that excellent institu- tion, ' The Royal Sea-bathing Infirmary, or Royal Na- tional Hospital for Scrofula.' " The air of Margate is excellent for promoting the progress of slowly healing wounds and ulcers, and it is valuable in cases of debility from inherited feebleness of constitution. It is also said, from its dryness, to be good for rheumatism. " Its autumn climate is often very fine. In November, when London is foggy and the country damp, Margate rejoices in a clear, bright, and dry atmosphere. ''Margate is celebrated for its sands, which are very extensive, owing to the shallowness of the water. They are therefore the delight of children and those who do not care for a plunge into the deeper sea." Edmund C. Wendt. MARTIGNY-LES-BAINS. A spa in the Vosges Moun- tains, France, which has recently acquired an excellent reputation. Location.-Martigny is a village situated in a pleas- ant valley surrounded by wooded slopes. It is not far from the spas of Contrexeville, Bourbonne-les-Bains, and Vittel. Although its growing reputation as a watering- place is of recent origin, the place itself is said to date back to the times of the Druids, and there are seen to this day remains of undoubted Celtic origin. The two principal springs of Martigny supply a cha- lybeate water rich in lithia. The waters are cold, clear, and slightly astringent to the taste. The climate is pleas- ant and bracing. Access.-Martigny-les-Bains (not to be confounded with Martigny in Switzerland) is a station on the Eastern Railway of France. It lies on the road from Contrexe- ville to Bourbonne-les-Bains. Analysis.-According to Wilm, one thousand parts contain : Parts. Bicai bonates of lime, of magnesia, and of iron 0.3918 Sulphates of lime, of magnesia, and of lithia 0.8641 Chloride of magnesium 0.0071 Silicates of magnesia, of soda, and of potash 0.1383 Silica 0.0018 Organic matter and loss 0.0250 Total 2.3281 The more complete analysis of M. Jacquemin is as follows : One thousand parts contain : Source Source No. I. No. II. Parts. Parts. Bicarbonate of soda 0.0160 0.0120 Bicarbonate of magnesia 0.1750 0.1800 Bicarbonate of lime 0.1620 0.1580 Bicarbonate of lithia 0.0320 0.0190 Bicarbonate of iron 0.0090 0.0310 Sulphate of soda 0.2290 0.2360 Sulphate of magnesia 0.3300 0.3340 Sulphate of lime 1.4240 1.4400 Chloride of sodium 0.0950 0.1050 Chloride of potassium 0.0120 0.01'40 Phosphate of lime 0.0028 0.0019 Silicate of soda 0.0532 0.0456 Silicate of lime 0.0029 0.0014 Fluorine, arseniate of lime, borates of soda, of manganese, of alumina traces traces Organic matter 0.1141 0.0681 Totals 2.6570 2.6400 According to Mr. Wolff (" The Watering-places of the Vosges") there is now a large new hotel with good ap- pointments, which includes the thermal establishment. But although baths are much used " the main use of the water is for drinking. The hours are the same as at Contrexeville and Vittel, and so is the number of glasses taken, generally from eight to ten. There are grounds adjoining, covering something like twenty-five acres, and very prettily laid out. One very useful feature is the large covered Promenoir, in which are housed the two springs, and which affords shelter alike for walking after drinking, and for pretty free exercise in wet weather." The older chalybeate spring is not much used now, and lies outside of the village. Indications.-The lithia springs of Martigny are em- ployed for the relief of gout, gravel, diseases of the blad- der' hepatic congestion, and the various manifestations of the uric-acid diathesis. But dyspepsia, anaemia, and chlorosis, gastralgia, diabetes, and some forms of rheu- matism and neuralgia are also said to be treated with advantage there. Those in search of a quiet watering- place, devoid of all the excitements of fashionable spa life, will find comforts that they will appreciate, amid surroundings that are interesting and agreeable at Mar- tigny. Accommodation.-In addition to the large modern hotel already mentioned there are a number of unpre- tentious establishments, with fairly neat and clean rooms and a modest bill of fare at decidedly reasonable rates. Edmund C. Wendt. MASSAGE. Physiological.-Experience has taught us that massage is a powerful tonic to the muscular sys- tem. But Professor Maggiora, of the University of Turin, has recently demonstrated this much more fully by a series of careful and pretty experiments, showing the rapidly restorative effects of massage upon muscles weakened'from various causes (Archives Italiennes de Biologic, tome xvi., 1891). 591 Massage. Massage. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) 1. The action of massage upon muscles in a state of repose was first studied. For this purpose the fatigue curves of the right and left middle fingers in voluntary flexion with a weight of three kilos (6.6 pounds) every two seconds were taken at 8 and 11 a.m., at 2 and 5 p.m. , and the following day the fatigue curves of the same mus- cles, with the same weight and rhythm, were taken at the same times of day after massage for three minutes.* The average result showed that the muscles did almost twice as much work after massage as they did before. The average for the left middle finger was 4,252 kilos without massage ; after massage, 8,019 kilos before ex- treme fatigue prevented further contractions. The right medius behaved similarly. Another series of experi- ments was made in which the same muscles were fa- tigued by the electric current applied to them or to the median nerve, and the same results were obtained as in the previous experiments, and showed that it takes much longer to fatigue muscles by electrical irritation after massage than before. 2. The next experiments were undertaken in order to ascertain whether the beneficial effects of mixed massage (friction, percussion, and kneading) increased in propor- tion to its duration. At 8 a.m. the normal fatigue curves were taken, then every two and a quarter hours after this they were also taken, having been preceded by two, five, ten, and fifteen minutes of massage of the right and left middle fingers. Ten tracings were thus obtained, and the result showed that five minutes of massage produced almost all the useful effect possible. When the massage was continued longer, for ten and fifteen minutes there were slight variations in the amount of work shown, above and below that after five minutes. The same re- sults were obtained when electrical irritations were used to fatigue the muscles or applied through the median nerve. 3. The third series of experiments were employed with a view to determine the effects of the main proced- ures of massage-friction, percussion, and petrissage. The methods were as before : first the normal fatigue curve was taken, then every two hours during the day fatigue tracings were taken after five minutes of friction, after five minutes of percussion, and after five minutes of petrissage or kneading, and finally after five minutes of these three manoeuvres alternating. There was little difference in the amount of work that could be done after five minutes of friction as compared with that after five minutes of percussion. There was a great increase in the force and duration of the contractions after petrissage, but the best effects were obtained after an alternation of all three. Like results followed when the contractions were produced by electricity, and these three procedures of massage employed separately and alter- nately. 4. The effect of massage upon muscles weakened by fasting was such as to restore them temporarily to a nor- mal condition, so that they gave tracings of fatigue equal to normal tracingsnot preceded by fasting. The same result followed when the electrical current was ap- plied either directly to the muscles or to the nerve sup- plying them in place of voluntary contractions. 5. The effect of massage upon muscles fatigued in an indirect manner, or as the result of general fatigue, was also studied. After a walk of ten miles, Professor Mag- giora took tracings of voluntary flexion of his right and left middle fingers. The amount of work of which they were capable was only about one-fourth of what they could do when there was no general fatigue. After massage for ten minutes they did nearly a normal amount of work, which, of course, was temporary. It has been found that the muscles of the fingers, fatigued in the manner mentioned by Professor Maggiora, by con- tractions with three kilos every two seconds, required two hours' rest in order that they might produce normal tracings of fatigue. (The massage was applied in this in- stance half an hour after the fatigue tracing was taken, so that making allowance for this extra work the infer- ence would be fair that ten minutes of massage brought about more recuperation than two hours of rest. When there was no general fatigue, five minutes of massage to the finger would then equal two hours of rest, as in the other experiments.-D. G.) 6. After the loss of a night's sleep the fatigue curve was found to be very small, about one-fourth normal, but after ten minutes of massage it was temporarily re- stored to a natural curve, a result that was not obtained by nourishment nor by nerve tonics. In fatigue of mus- cles from fasting, rest alone will not restore them, and in muscular fatigue from wakefulness, food alone affords no appreciable relief. 7. The effect of massage upon muscles weakened by excessive intellectual work was also noted. After the final examination of twenty students, which took five hours, Professor Maggiora was much exhausted, and then took fatigue tracings of both middle fingers. These represented only one-fifth of a normal amount of work. Half an hour later, after ten minutes of massage, the amount of work was little less than natural, and proba- bly would have been natural but for the extra work half an hour before. 8. After a slight attack of fever of ten hours' duration, the muscles were weak the whole of the following day. The influence of massage upon the flexors of the fingers increased their aptitude for work so that they gave a tracing of fatigue nearly normal. 9. Professor Maggiora showed that aneemia of a few minutes produced phenomena in muscles similar to fa- tigue. His brachial artery was compressed for three minutes, and a fatigue tracing was taken and found to be very small. Two hours later the brachial artery was again compressed for three minutes, and at the same time the forearm was subjected to mixed massage. Then another tracing was taken while the anaemia was kept up, and it was less than the previous one, showing that massage has no effect upon muscles when their blood- supply is shut off. In comparing this last experiment with the preceding ones, it is evident that the effect of massage consists es- sentially in reawakening the phenomena of the local cir- culation, in bringing to the muscles a greater quantity of material necessary for their contraction, and in removing the retrograde products of muscular work. Muscular Rheumatism almost invariably yields quickly to massage, and the result shows a fivefold in- fluence : 1. Thermal : From equalized and increased circulation and warmth imparted by the hands of the manipulator. 2. Electrical: The muscles contract much more vigorously and agreeably to a faradic current after massage in these cases than before. 3. Neural : Pain disappears, which is brought about by, 4, the mechani- cal changes produced by massage, which dispels the muscular rigidity and the partial and irregular contrac- tions of the muscular fasciculi, breaks up minute adhe- sions between muscular fibres, and thus restores flexibil- ity and suppleness to the muscles, and removes pressure and pulling from terminal nerve filaments. Kiihne has shown that the contractile substance of muscle is semi- fluid. The pathology of muscular rheumatism coming on suddenly is considered by Professor Busch to be a partial coagulation of the contractile muscular substance. The difference in the firmness of muscles lies not so much in the muscular substance as in the fascia that surrounds it. Where the fascia is thick the muscles seem hard ; where thin, the reverse. Ludwig has shown the fascia to be a pump-like arrangement by which lymph is sucked out of the muscles and propelled onward into the lym- phatics. Between the two layers of fascia are lymph spaces terminating in lymphatics. When the muscles contract, the inner layer is pressed against the outer and forces the fluid onward into the lymphatic vessels. When the muscles relax the inner layer falls away from the outer, and the lymph finds its way into it. Muscular contraction thus favors the removal of waste products. When muscles cannot contract without pain, as in mus- cular rheumatism, massage will more than make up for * The ergograph o£ Professor Morse was used to take the muscular curves. 592 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. massage. Massage. the loss of contraction. The intermittent pressure of massage has been demonstrated to increase the flow of lymph in a remarkable manner (see my " Treatise on Massage," pp. 72-75). In this connection a very practi- cal hint is afforded us by those adhesions of the pleura which are frequently loosened by the rubbing together of the two membranes in respiration. 5. As to the chem- ical influence of massage in muscular rheumatism: It is pretty generally conceded that when a muscle or joint is impaired from fatigue, cold, injury, or rheumatism in the system, a deposit of uric acid takes place at the af- fected part. Therefore, when this gets well under mas- sage, it may be reasonably inferred that the uric acid, or other materies morbi, has been got rid of. Further ob- servations in this direction would be desirable. I think that massage may be of some value in the diag- nosis of doubtful cases of muscular rheumatism from neuritis. As ordinarily understood, muscular rheuma- tism is distinguished by rigidity of muscle, pain on mo- tion, and ease when at rest. The immediate effect of massage in such is apt to be painful, but speedy relief follows. But there are many cases of what, I think, are erroneously called " muscular rheumatism," where the patients are much more comfortable when up and mov- ing about, in which there is no perceptible muscular ri- gidity, but, on the contrary, there may be some flabbiness and slight atrophy of muscle, affecting either a single group of muscles or the same groups on each side of the body, and accompanied with some stiffness of motion, and in which pain is much aggravated after the patient has been warm and at rest in bed for some hours. In all probability these are cases of neuritis of the terminal nerve filaments supplying muscle, and the occasional ap- pearance of neuritis affecting a distinct nerve-trunk in such cases would strengthen such a view. But be they what they may, the relief afforded by judicious massage is great and immediate, but not so lasting as in the pre- vious class of cases. They quickly lose nearly all the comfort felt during massage, and it takes long to benefit them ; thus in every particular differing from what we have hitherto understood by muscular rheumatism. The recent epidemics of influenza or grippe left a legacy of these neuro-muscular disturbances. Pleuritic Effusions.-Ten cases of primary pleuritic exudations have been treated with massage of the chest by Dr. Poliakow (Wien. Med. Presse). Seven of these were purely serous, three sero-fibrinous. The manipu- lations were made in the direction of the lymphatics of the affected region. The treatment was begun with light stroking and soon brisk, deep massage was used, and this was followed by percussion, all occupying from ten to twenty minutes daily. The exudations disap- peared in from eight to twenty days, and the other symp- toms in from nine to thirty-five days. The chest pains were relieved, the muscles invigorated, and the respira- tory movements increased in volume, and thus a marked influence on the absorption of the exudation and the dis- tention of the compressed lung was obtained. Dr. Emil Schlegel has also reported several cases of pleuritic effu- sion where the absorption of the fluid seemed to be accel- erated by means of massage. This was used in the form of percussion only, with the ulnar border of the hand striking at the rate of two blows a second, or six hun- dred in five minutes, which made a sitting, and two of these were given daily. Dr. Schlegel's enthusiasm car- ries him a little too far, for he believes that percussion might be quite as useful for promoting absorption in the intra-cranial cavity, the spinal canal, etc., forgetting that the blows would have to be so hard, in order to be ef- fectual, that the patient would have reason to object. Neuritis.-Massage is becoming more generally ac- cepted as one of the proper measures to employ in cases of neuritis. In the early stages it may be used to push the blood out of the distended vessels and to create a free circulation in the adjacent tissues ; in the later, to pro- mote absorption of inflammatory products by spreading these over greater space, and for the relief of minute ad- hesions and thickening of the nerve-sheath. But the senti- ment largely prevails throughout the profession that cases (SUPPLEMENT.) of fully developed neuritis ought not to have massage. Nevertheless, testimony is accumulating that even here it may be beneficial. I have recently had two cases of acute neuritis of the sciatic nerve in previously healthy people, in which the result was all that could be desired. In one, massage was used in conjunction with galvan- ism and tonics ; in the other both medical and electrical means had been exhausted. It was the patient's third attack, the first having lasted for three months, then, after an interval of several years, came the second attack, which lasted for six months, and at this rate of increase we feared that the patient was in for a year of it with his third attack, which appeared several years after the second. But under massage alone the whole aspect of the case was speedily changed, and in the course of a few weeks the patient resumed his arduous professional duties. Dr. A. Symons Eccles, of London, has reported in de- tail three cases of highly acute neuritis1 of the sciatic nerve in previously well people, which he treated success- fully with rest, position, and massage (effleurage, knead- ing, and percussion). In the intervals between the mas- sage, the leg was suspended in a Salter's swing. It was contrary to all expectation that percussion could be used to advantage in such cases, but experience proved the value of it. In six other cases of sciatica that occurred in patients of an anaemic type the sciatic affection was evidently a concomitant of the general condition. In these general massage of the body, with frequent meals and the avoidance of all pressure upon the nerve-trunk, were kept up from four to ten weeks, with the result that not only was the sciatic pain removed but the patients all improved in appetite, weight, and strength. Local Neurasthenia.-Neurasthenia, as I under- stand it, may be either general or local, affecting the nerves or nerve-cells of all or any part of the cerebro- spinal or sympathetic system. Its manifestations are those of exhaustion or too easy exhaustibility of nerve- force ; and its pathology, malnutrition of the nerve- cells involved, with concomitant instability of their cir- culation in the form of anaemia or hyperaemia, or alternations of these. It predisposes to, it accompanies, it results from disease ; the nervous shock and the tedious recovery from injuries point to other sources, and it may be caused by overwork, worry, or sheer laziness. The agreeable fatigue after a satisfactory day's work that insures sound sleep may be regarded as a healthy form of neurasthenia, if the Hibernianism may be pardoned. It is a matter of common observation that those who are compelled to hard manual labor seldom suffer from nervous prostration, and among the more fortunate who may be predisposed to neurasthenia, those who are deeply interested in some hobby or occupation that keeps mind and body active, have found the best means of prophylaxis. The same means that serve for its pre- vention also supply us with a clue to one of the most valuable agents that can be employed for its relief or recovery. Exercise keeps the circulation active, but requires effort of brain, spinal cord, and nerves, as well as muscles, at a time when our object may be to afford rest to one or all of these parts of an overtaxed nervous system. Massage supplies this want, and will keep the circulation going with a minimum or no expenditure of nerve-force from the patient, and deep massage without friction will lessen the beats of the heart and afford it rest also. Nay, more, for it is getting to be the fashion not only among the laity, but also with some physicians, to say that massage imparts energy to the patient, though I confess I do not exactly understand what this means. Certainly many who submit to massage feel much more vigorous, light, and supple after even the first applica- tion than they did before it. But may not this rather be owing to the rousing of their latent energies and restor- ing the equilibrium of their forces by facilitating the cir- culation of blood and the flow of lymph and the trans- mission of nerve-force ? I have previously stated elsewhere that in cerebral exhaustion the relative value of massage was almost nil, and that out-of-door exercise was of paramount impor- 593 Massage> Massage. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. tance ; but I have since found reason to modify this in favor of more massage and less exercise. In such cases, massage of the head alone daily, or every other day, is better than applying it all over the patient, unless there be a rare idiosyncrasy that will not allow the head to be manipulated. There are people, not a few, who, when using their brains, suffer from uneasy sensations in the lumbar or dorsal region, and these discomforts continue after the cessation of study, causing wakefulness. Generally, there is also some spinal irritation in the region affected. In such cases massage of the back alone will often in- duce sound sleep, and next day the patient feels inspired with faith, hope, and courage, in place of doubt, dread, and fear of meeting appointments. With these cases a much more marked effect is produced by local than by general massage, except when the tenderness of the mus- cles and spinal irritation are extreme, unfitting them for every kind of work, and then the massage should be general, omitting the back at the first seances, but grad- ually approaching it at subsequent ones. If space permitted I could give details of cases which would seem to justify the following conclusions : 1. That massage induces sleep. 2. That even when massage is applied in the forenoon its soporific effects may not disappear before bedtime, though in general the later in the day massage is used for promoting sleep the better. 3. Disagreeable feelings of drowsiness and languor do not necessarily intervene between massage in the fore- noon and sound sleep at bedtime. Aptitude for rest or work generally follows massage. The mind is clearer, the mental faculties work easier and longer, the muscles are more supple, and do not tire so soon. 4. When people are wakeful after massage they may not be restless nor feel the loss of sleep on the following day. Generally they do not. 5. Spinal irritation is relieved or disappears under massage. 6. For local neurasthenia there is no need of general massage unless the whole system be secondarily affected. 7. When affections have come to a standstill under massage, improvement may yet go on after massage has been discontinued. 8. For improving the nutrition of nerves and muscles, restoring natural sensation and motion, massage may succeed when other means have failed. 9. Deep massage without friction has proved of more value in my hands than all other forms of massage put together. 10. Massage can be overdone, producing opposite effects from a moderate application. 11. Besides massage, carefully graduated exercises at regular times are valuable accessories in the restoration of motion. 12. Massage is not the only means of treatment for neurasthenia. Its selection is usually decided upon after the failure or exhaustion of every other means; in the same manner that the shrewd old divine decided that it was not wise to let the devil have all the good tunes to himself. Diabetes.-Massage under the water, or douche-mas- sage, constitutes the peculiar mode of administering the warm hydro-sulphuretted water of Aix-les-Bains, where it has been in use from time immemorial. The water is too feebly mineralized to be rationally employed in any other way than externally, which is thought to favor the ab- sorption of sulphuretted hydrogen by the skin. Dr. H. Forestier, physician at Aix-les-Bains, has em- ployed this treatment in seven cases of saccharine diabe- tes in fat people, with the interesting result that there was an enormous decrease of the glycosuria without the.in- tervention of any change in the alimentary regimen or the administration of any medicine.'2 The patients lived A la table d'hote, eating a mixed diet of meats, sweets, fruits, and amylaceous substances. They followed their ordinary habits of exercise. The douche-massage was used with the patients seated or lying, while two mas- seurs occupied themselves, the one with the limbs, the (SUPPLEMENT.) other with the trunk, adroitly directing a jet from a noz- zle under the arm, douching with both hands and masseing at the same time. This occupied ten or fifteen minutes. The temperature of the water was from 37° to 40° C. (98.6° to 104° F.). The patients thus treated were classified as belonging to the clinical form of diabetes known as diabete gras of Lancereaux, or the slow diabetes of the English. All seven presented very similar features-age fifty to sixty years-embonpoint or confirmed obesity, extreme thirst, passage of excessive quantities of urine, and great mus- cular fatigue on slight exertion. These symptoms were overshadowed in four of the cases by arthropathies, and in two by neuralgia which had been mistaken for chronic rheumatism ; and in one of them this diabetic neuralgia seemed like that of tabes, affecting the crural and sciatic nerves. In those patients with a large quantity of sugar in their urine, as well as in those with a small quantity, there resulted the same modification in the excretion of urea. Before the douche-massage this was less than nor- mal, but under this treatment it increased, thus demons strafing increased oxidation and acceleration of retarded nutrition. The decrease in the sugar was great. In the first case, from 24 grammes in twenty-four hours to 1J grain after the twentieth massage, in twenty days. In the second case, from 117 grammes in twenty-four hours to G6 grains after the twenty-fifth massage, in twenty-five days. In the third, from 87 grammes to 18 grammes*after twenty massages, in twenty-two days. In the fourth, from 319 grammes to 101 grammes after nineteen mas- sages. In the fifth, from 42 grammes to 5 grammes after twenty massages. In the sixth, from 30J grammes to 11$ grammes after twenty massages, in twenty-four days. In the seventh, from 291 grammes to 80 grammes after twelve massages. The quantity of urine also decreased. The general condition of the patients improved, appetite and sleep were also made better. The pain and stiffness of those whose joints were thus affected were greatly benefited, but the neuralgia affecting the crural and sciatic nerves in one patient was still troublesome, though his general condition had become excellent. The douche-massage would thus seem to be one of the most powerful means of hygienic therapeutics for fat diabetics, and can be used at the same time with other treatment, such as the internal use of the waters of Carls- bad and Vichy and Brides. But these are probably better adapted for diabetics with hepatic troubles and large livers, whereas the hygienic treatment of the douche- massage is rather indicated for cases where there is no appreciable trouble of the liver and where the general con- dition alone seems to be at fault. As to the duration of improvement after massage, but little is said except in two cases : in the one that had 319 grammes of sugar in twenty-four hours, after nineteen massages, this was 101 grammes : and at the end of eight months at home, on mod- ified diet, this had still further decreased to 2 grammes. The following year he ■went to Vichy, and two months after he had left there the urine had 53 grammes every twenty-four hours. In another case that had been at Vichy for several years, the glycosuria had always in- creased to the same degree in the intervals between the seasons. After twenty massages, it decreased from 42 to 5 grammes, but how long it remained thus we are not told. The results must probably have been more favor- able if the diet had been restricted, but in order not to obscure the results of the douche-massage, a full mixed diet was allowed. This might be a good course to pur- sue when the physician is obliged to use milder treat- ment than that of special diet, in order not to discourage the patient. Professor Finkler has tried general muscle-kneading in fourteen cases of diabetes. The patients were at first masseed daily, and later, morning and evening for twenty minutes, over all the muscles of their bodies. The diet at the same time was mixed. A few of the patients were confined to bed, others were able to go about, and some did severe manual labor. The result, on the whole, was favorable, as shown by decrease iu the quantity of urine 594 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Massage. Massage. and of the sugar contained in the same, diminution of thirst, return of perspiration, and increase of body weight. After three months' treatment of one patient the sugar entirely disappeared from the urine, and this remained absent for three months after the last massage, then the sugar reappeared (Schmidt's " Jahrbucher," Bds. 2 and 3, p. 218). As there was no external application used writh the massage in Professor Finkler's cases, the result would probably have been as good in Dr. Forestier's cases with- out the douching with the waters of Aix. Intermittent Fever.-Dr. Feroykovy, in the Inter- nationale klinische Rundschau, states that in the Austrian army about one thousand soldiers were treated for inter- mittent fever annually. One of these cases was that of a soldier in whom neither the hot nor the cold stage was observed. He suffered only from severe vomiting, which quinine alone could check. Another case was character- ized by severe sciatica. On one occasion when no qui- nine could be obtained, Dr. Feroykovy ordered these patients to be rubbed on the back with simple ointment. This was done twice in one day, and at the visit next day he found that the attack of fever which had pre- viously occurred regularly had not made its appearance. The massage was later carried out in seventy patients suffering from intermittent fever without the use of quinine, and in sixty cases of quotidian fever the attack did not recur any more, but in ten cases of tertian fever massage had no effect. The same treatment was then tried in over one hundred cases, and in the "vast ma- jority " the result was satisfactory. Massage of the Heart.-Massage of the heart is very much overestimated. General massage is of great aid to the peripheral circulation, lessens the work of the heart, tranquillizes the nervous system, and induces sleep, even in the worst cases of heart disease. In a recent work Oertel places altogether too much importance upon the mechanical effect of massage of the heart over the chest-walls. In order that massage might act upon the heart in the same way that it does upon the muscles of the extremities (which he claims), it would be necessary to remove the chest-walls, a procedure that would hardly be justifiable. While the patient is standing he directs that gliding pressure should be made upon the chest- walls, downward and inward from the axillary line, the benefits of which he states are not only referable to its influence in perfecting expiration, but also to the direct pressure upon the heart, influencing its nutrition pre- cisely as massage benefits the muscles of the extremities. It is indicated, he says : 1. When the heart-muscle is weak from deficient nu- trition, anaemia, or corpulence. • 2. When the arterial system is imperfectly filled and there is passive congestion as a result of insufficiency of the myocardium. 3. When there are valvular lesions or obstruction to the circulation, the pressure of tumors, or constriction of the pulmonary orifice. Emphysema and curvature of the spine increase the demands of the heart. 4. As an accompaniment of treatment of the heart by mountain climbing. It is contra-indicated in acute or recurring endocarditis or pericarditis, in acute or subacute myocarditis, the re- sult of sclerosis of the coronary arteries, and in general arterio-sclerosis. But the great authority in this matter, according to Dr. Sarah E. Post, is the renowned pugilist, John L. Sulli- van, of whom she says : "It is idle to fight with facts when a man like the great Sullivan insists upon being rubbed down and not up. . . . Horses, too, are rubbed down and not up " {Massage Primer, p. 27). The horses know' as much about this as Sullivan. A mo- ment's reflection will show that rubbing down would tend to produce engorgement of the venous and lym- phatic systems. Myxcedema.-I had never heard of massage being used in myxcedema prior to May, 1885, when Professor Robert T. Edes sent me a case. It was that of a man fifty-six years of age, who had suffered from the usual symptoms of myxoedema for four years. The result of a course of general massage every other day was most sat- isfactory. The boggy, brawny, waxy condition of the tissues gave place to suppleness and elasticity, freedom of motion, improved mental tone, and better hearing. Seven years have elapsed and the improvement has con- tinued. Since then several cases have been reported much improved or cured by means of massage and hypodermic injections of an extract of the thyroid gland of a sheep. A most interesting case of this kind has recently been published in the British Medical Journal by Dr. Wallace Beaty. The patient, a lady forty-live years of age, had for five or six years become more and more easily tired, speech had become slow, memory impaired, temper ir- ritable, walking difficult, constipation increased, suscep- tible to cold, etc. Her face was swollen, waxy-looking, and anaemic ; lips and alas nasi thickened, nose broadened, hair thin ; hands and feet, arms and legs were enlarged and clumsy. No trace of the thyroid gland could be made out. Examination of the blood showed haemo- globin to be seventy per cent, of the normal. Five weeks of massage brought some improvement, and then hypodermic injections of an extract of sheep thyroid gland were also used, and more rapid improvement fol- lowed. The patient was under this treatment for twelve weeks, continually improving. After treatment was dis- continued she steadily progressed. " Now she is prac- tically cured. The face looks natural, the skin of the face is no longer swollen, the lips and tongue are of nat- ural size, the speech is rapid and easy, the hands are no longer clumsy, she can give a hearty and firm shake- hands, her rings are loose and easily removable, her movements are active, her hair, which had become thin, is now growing thickly; her memory has returned, menstruation, which was absent, is natural." Massage of the Abdomen for Indigestion.-In dilatation of the stomach and chronic dyspepsia massage has proved of benefit, the distressing symptoms disap- pearing and the patients gaining flesh and strength. It should be applied as much as possible over the stomach, working from the left side upward and inward under the false ribs, so as to empty the stomach of its contents while stimulating the contractility of its muscular walls. The effect of gravity causes the food to lodge in the most dependent portion, in the greater curvature, and it needs to be pushed along toward the pylorus, at the same time that its peristaltic action is being increased. The 'whole abdomen should be masseed at the same sitting, as the bow^els are also usually sluggish in these cases. Ru- bens Hirschberg, of Odessa, reports many cases of this kind which he relieved or cured by means of massage, and lays special stress on the fact that massage has an ultimate chemical influence in causing the disappearance of sour, burning eructations, foul breath, and bad taste in the mouth, as well as of sensations of weight and ful- ness, which would indicate an improved state of the gas- tric juice and better contractions of the stomach. I have witnessed the same result in several cases under my care. Hirschberg invariably found in these cases what I have seldom met with, that massage of the abdomen for thirty minutes had a decidedly diuretic effect, the daily quantity of urine in some being increased to three times the usual quantity, without any other inconvenience save that of frequent micturition. When massage was dis- continued the urine fell to its former quantity. The increase of urine probably depends upon more active ab- sorption of fluids from the digestive tract, increased blood-pressure, and stimulation of the splanchnic and pneumo-gastric nerves below the diaphragm, caused by massage. Contra-indications to the use of massage over the stomach or bowels would be symptoms of cancer or ulcer, acute or febrile states, and a suspicion of a ten- dency to hemorrhage. If cicatricial contraction of the pyloric orifice existed, massage might increase the dila- tation, for the walls of the stomach would then in all probability yield more readily than the cicatrix. Salol serves a useful purpose in showing us when the contents of the stomach pass into the small intestine. Insoluble in the gastric juice, it is decomposed into its 595 Massage. Massage. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. two constituents, salicylic acid and carbolic acid, in the small intestine, where it is subject to the action of the pan- creatic juice, which renders it soluble and easy of absorp- tion. Soon after absorption into the circulation it passes through the kidneys into the urine as salicyluric acid and sulpho-carbolic acid, its presence being shown by the pro- duction of a red-violet precipitate when the urine, after acidulation with hydrochloric acid and shaking witii ether, is tested with a solution of perchloride of iron. Professor Ewald tied the pylorus of a number of dogs, then gave them large quantities of salol, without obtain- ing the reaction of this in the urine. Dr. Sahli found that acute catarrhal conditions, as well as chronic dilata- tion of the stomach, delayed the decomposition and ab- sorption of salol. The experiments of Professor Ewald and Dr. Eccles agree in that they found, in most cases under natural conditions without massage, that salol could be detected in the urine in forty-five minutes after its administration ; but after massage upon the ab- domen for fifteen minutes the reaction of salol was ob- tained in thirty minutes. In two obstinate cases the addition of general massage had a more favorable effect in hastening the absorption of salol than did massage of the abdomen alone. After the administration of one gramme of salol to people suffering from chronic dyspepsia, Hirschberg, Brunner, and Huber found that it required from two hours to two hours and a half before the reaction of salol could be detected in the urine. But after a walk of fif- teen minutes or gymnastic exercises for ten minutes, the reaction was obtained in one hour and five minutes. Similar results were obtained from faradization, but massage proved more efficacious than any other means. Hopadze has made a series of observations showing that massage of the abdomen for ten minutes lessens the so- journ of the food in the stomach from fifteen to seventy- five minutes. He also made other observations upon healthy people, proving that the nitrogenous metamor- phosis in four persons to whom he gave daily massage for twenty-five minutes invariably increased and lasted for seven days after a week of massage. The assimila- tion of the nitrogenous substances of the food increased in all the cases, and lasted during the week following the week of massage ; but during the ■week of massage one gained in weight, two lost, and one was unchanged. The results obtained by Zabludowski were similar. Relaxation of Ligaments is often erroneously diag- nosticated after the improvement of a joint from the acute symptoms of disease or injury. It is much more frequently the case that the muscles moving it are atro- phied and relaxed in consequence of the necessitated disuse, which thus allows too great traction upon its liga- ments. Massage, carefully regulated movements, and faradization will restore the nutrition and tone of such muscles, and if the disturbance of the joint has disap- peared, the limb can thus be got well. In three cases of this kind I had the pleasure of training the affected mus- cles as mentioned, so that from being totally unable to extend the affected leg at all. in a few weeks they could hold it fully and voluntarily extended for seven, nine, and ten minutes, respectively. The first of these was a stout elderly lady, who still had the remains of an old synovitis when she began this treatment, under which she fully recovered. The second was a gentleman of sixty-three years, who had developed a rheumatoid arthritis of his left knee in consequence of an injury, and though the peri-articular thickening disappeared, and the quadriceps extensor muscles improved so that he could hold the leg extended for nine minutes, yet grating of the articular surfaces remained, and locomotion was much impaired. The third was a long-levered, awkward woman, -who had for many years suffered from relaxa- tion of the quadriceps extensor to such an extent that it allowed the patella to slip externally without the power of voluntary ot involuntary replacement, causing her many bad falls. When she had gained strength suf- ficient to hold the leg extended for ten minutes, she had correspondingly good use of the limb, but for security I still made her wear a few turns of roller bandage to keep (SUPPLEMENT.) the patella in situ. Let any of our readers take his watch and try to hold his leg and thigh fully extended without support for one or two minutes, and he will ap- preciate what was accomplished in these cases. Massage in Sprains and Fractures.-It is an en- couraging sign that physicians and surgeons are begin- ning to use massage themselves in sprains. The ortho- dox treatment of absolute immobility alone in these cases has little else to support it than the dogmatism of cen- turies, from which it has been almost impossible for a surgeon to free himself unless he has been the unfortu- nate victim of a sprain and had it treated with massage. Supposing that anyone wanted to make a well joint stiff, to what more effectual means could he resort than first to give it a wrench or sprain, and then do it up in a fixed dressing, so that the resulting inflammation would have an opportunity to produce adhesion of the tissues ? Pre- cisely the same course of treatment is employed for the purpose of closing up a hole, namely, that of exciting adhesive inflammation, and unfortunately it sometimes closes the cavity of a joint also. In my " Treatise on Massage " will be found the method of applying massage in sprains, and its results in seven hundred cases, show- ing that they got well in one-third of the time that they do without it, and with less tendency to subsequent pain, weakness, and stiffness than when massage had not been employed. The earlier after a sprain massage is em- ployed, the more speedily does recovery take place. But sprains are sometimes complicated with fractures near and into joints, and of late years massage and move- ments have been used in these cases with advantage over the ordinary methods. In intra- and para-articular fract- ures the French surgeons, MM. Championniere, Tripier, and Rafin, have found that immobilization is accompanied with danger, whereas massage acts well from the first and can be used with other means. Their experience has been confirmed by Professor Lauderer, Dr. Kendal Franks, and others. The dangers of immobilization are stiffness of the joints and atrophy of the muscles ; and the anaemia of the muscles (ischaemia) caused by fixed dressings may be mistaken for neuritis. It has been demonstrated by Kraske that the application of a rubber bandage to the leg of a rabbit for six hours has produced vitreous (hyaline) degeneration of the muscles, from which they cannot recover, The advantages of massage are that it promotes absorption of effused products, prevents stiff- ness of the joints and atrophy of the muscles, and favors repair. It should be done once or twice daily in these cases. M. Championniere found that massage relieved pain, as most observers do who know how to apply it, but M. Rafin states that its application was painful. The man- ner of employing it would probably account for the dif- ference. This is not stated. I have elsewhere given full directions how painful, swollen, and tender tissues can be gradually approached without hurting by working first on the adjacent healthy parts. Good recoveries were obtained by both MM. Championniere and Rafin, in from one-half to two-thirds of the usual time. Those cases in which there was no displacement did well under massage, and passive motion without immobilization. Those in which there was displacement of the fracture had massage at first to hasten absorption, then a reten- tive dressing for the shortest time possible to make sure that the displacement would not return, and after this massage and passive motion for the restoration of mobil- ity. As soon as consolidation had taken place it was found that motion was free and easy. In an article in L' Union Medicale of February, 1889, on fracture of the fibula treated by massage and mobili- zation, M. Marevery summarizes his experience by say- ing that almost all of his patients treated in this way re- covered the use of their limbs in less than nineteen days after the injury. This treatment he finds can be used only for certain fractures, such as those of the inferior ex- tremity of the radius, and of the lower end of the fibula. He also made use of cold applications and the rubber bandage as well as massage from the first, and passive motion was given to the joints early. 596 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Massage. Massage. Professor Lauderer applies a fixed dressing for four or five days at first. After this he removes it for a short time daily in order to give massage, and at the end of ten or twelve days consolidation is sufficiently ad- vanced to lay aside the splint altogether. This plan of treatment he finds preferable to all others for transverse fracture of the patella, as it is safe and simple and gives good results, the patients going about freely in four or five weeks. He has employed it in ninety cases of sim- ple fractures of various bones, including fracture of the olecranon, of the anatomical neck of the humerus of the thigh, etc.3 Dr. Kendal Franks considers that certain fractures are well suited for massage, such as fractures of one of the bones of the leg or forearm when the other bone acts as a natural splint and prevents displace- ment ; and transverse fractures of the humerus and fore- arm or leg. The temporary removal of the splints in these cases for massage is not attended with any risk.4 In transverse fracture of the patella, even where good union has been obtained either by immobilization or by suturing of the fragments, or by fixation of them with Malgaigne's hooks, the resulting stiffness of the knee- joint, atrophy of the quadriceps extensor muscles, and impaired motion may cast a shadow of gloom over the most careful treatment or the most skilful operation. But the lesson taught by the cases in which the frag- ments have remained widely separated, and yet accom- panied by good motion, has not passed unheeded. Pro- fessor Tilanus, of Amsterdam, treats cases of fracture of the patella without immobilization, using instead compression, massage, and early movements of the joint, leaving consolidation to take care of itself, for union is by no means certain under the best of care. In this manner the effusion is quickly dispelled, atrophy and stiffness prevented. His patients were encouraged to walk after the first week. Of six cases that Professor Tilanus treated in this way, the patients could walk very well in fourteen days (according to his own statement); -Rafin treated one case in this manner and the patient could walk perfectly in forty-two days, experiencing only slight difficulty in descending stairs. The seat of the fracture could then be felt with difficulty, being marked only by a slight depression of the skin, and the leg could be flexed within two fingers' breadth of the thigh. Dr. Wagner, a regimental surgeon of the Austrian army, states that he has obtained astonishingly good re- sults in five cases of fracture of the patella which he treated with massage, passive and active movements, but without even the application of a bandage. His method is somewhat as follows: The patient is put to bed and the affected limb stretched on a simple inclined plane, or on an adjustable wooden splint, so that the heel is ele- vated. In the first three or four days an ice-bag is placed upon the swollen and painful knee. As early as the fourth day massage may be begun, not only over the entire extent of the quadriceps extensor muscles, but also over a large portion of the knee-joint. This is done daily and soon followed by passive movements. As soon as possible the patient himself begins to move the joint, and after fourteen or twenty days may attempt to walk on crutches, and in six weeks is usually able to walk with- out support. Should the fragments be widely separated, Wagner advises subcutaneous suture, but even here mas- sage and exercise "cannot be begun too early." In fine, by means of massage and movements, the indica- tions in every case are largely met. These are, the re- moval of the effusion so as to allow the fragments to come closer together, the favoring of repair and the formation of callus, the prevention of atrophy of the quadriceps extensor and the shrivelling of the capsule, and the early restoration of motion. It is needless to state that these manipulations should only be undertaken by some one having sufficient anatomical and surgical knowledge. It is worthy of notice that the principal muscles of the quadriceps extensor that effect extension of the leg, are the vastus internus and vastus externus. The insertion of these on the lateral aspects of the patella extends much lower than is generally supposed, and affords leverage to extend the leg when a fragment of the patella is de- tached above their insertion. Rupture of the rectus femoris alone has little or no influence in hindering walking (after the immediate effect of the injury is re- covered from). Dr. Kummer, of Geneva, and Dr. Kauf- mann, of Zurich, and Mr. Page, of Newcastle-on-Tyne, have each performed total extirpation of the patella for disease of that bone without impairing the patient's gait or interfering with the movement of the knee-joint, when the latter was healthy. Slightly weakened power of ex- tension of the leg was the only noticeable feature on close examination.6 After union of any solution of continuity, whether of bone, muscle, or nerve, massage and movements are in order, and even when repair is going on the mobility of the joints may be still better secured by altering the position of them at each dressing. Contusions of Joints or Muscles are speedily re- lieved of pain, swelling, and stiffness when massage is ap- plied from the first, and atrophy, which is so apt to follow even slight injuries of this kind and of sprains, is pre- vented. M. Castex has recently made a very interesting series of observations, both clinically and experimentally, on this subject {Archives Generales de Medecine, 1891-2). For the sake of comparison he purposely bruised corre- sponding muscles and joints of the same legs of various dogs, and to one limb he gave massage, and to the other none. The limb that was masseed quickly recovered, while the other remained swollen, sore, and stiff, and later there was atrophy of the muscles. His experiments were carefully watched by others, who did not know which leg was being masseed. Massage gave like good results when applied immediately after the reduction of dislocations in dogs, and in man also the results were very favorable when massage was used after the joint had been held in place for a few days. M. Castex reaches the following conclusions, which are based upon both clinical and experimental observa- tions : In simple contusions of muscles massage rapidly dis- pels the various troubles, but principally the pain. In articular contusions massage dispels the reflex mus- cular contractures and the pareses, and above all it pre- vents the rebellious muscular atrophies which are the most serious complication thereof. Applied to sprains, it is remarkable by the rapidity of its good effects. In luxations we ought to have recourse to it as soon as the reduction is assured, for it very speedily reduces the swelling, the ecchymoses, and the pain. It awakens the muscular fibres from that local stupor into which they have been plunged by the injury. It prevents atrophy and stiffness. Applied to juxta-articular fractures, massage rapidly terminates pain and swelling. By this means a simple fracture of the inferior extremity of the radius without deformity is cured in fifteen days, whereas it would take forty days, at least, with plaster immobilization. If it is applied after the removal of the fixed dressing it ren- ders the parts supple and dispels the oedema. Massage has proved of little use against acquired mus- cular atrophies. It prevents them when applied early. Histological Results. - The muscle injured and not masseed, under the microscope presented a diffuse sclerosis with hypertrophy of the connective tissue in its various parts, interstitial hemorrhages, engorgement of the blood- vessels, and hypertrophy of their external coat. The muscle injured but masseed presented a normal histological aspect. The blood-vessels are normal in the muscle masseed. In the muscle not masseed they show a hyperplasia of their external coat. The nerve-filaments in the masseed muscle are normal ; in the non-masseed muscle they present evidences of perineuritic and interstitial neuritis with compression of the nerve-tubes. The perineurium is at least three times as thick in the non-masseed side as it is in the masseed side. The lesion of the nerves is more marked than that of the vessels. 597 Massage. Mastoid Anatomy. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) In brief, massage acts by deterging a part from the various injurious materials which have been poured into it as a result of injury, in bringing this part back to its normal condition, and in preventing the process of diffuse sclerosis which would result. Such is the positive ex- planation of massage, and it can only increase its credit. Incontinence oe Urine in Females.-Some of our readers may wonder why attention has not been given in this article to massage of the uterus and its suburbs. For information on this subject we would beg leave to refer them to my " Treatise on Massage," which has a chapter on " Massage of the Uterus and its Surroundings," which the New York Medical Record said was " worse than ig- norance," while the Dublin Journal of Medical Science, August, 1891, said of the same : " Those who objected so strongly a short time ago to the employment of massage in these regions, would do w'ell to read this chapter and to bear in mind the author's observation, that 'Massage of the pelvic organs should be entrusted to those alone who have clean hands and a pure heart.'" It is both novel and interesting that massage can be applied to relieve and cure incontinence of urine in females. Dr. W. S. Bagot, of the Rotunda Hospital, Dublin, has used it with complete success in a number of cases of this kind. His method is that of Brandt stripped of all unnecessary details. He introduces the index-finger of the left hand into the vagina (the rectum in children), slightly flexed and passed obliquely, so as to partially encircle the neck of the bladder. The right hand grasps the wrist so as to regulate the pressure used, and then the finger in the vagina or rectum is made to vibrate against the neck of the bladder, compressing it with moderate force against the pubes. This is done three or four times, and then the opposite side of the bladder is treated in the same way with the index-finger of the right hand. In this manner one patient, who had suffered for a year and a half from incontinence of urine, with a patulous urethra and slight prolapses of the an- terior wall of the vagina, and abnormal distensibility of the perineum, was cured in twenty-nine days, and nine months later had no relapse. Another patient, twenty- four years of age, who had suffered from nocturnal enuresis from childhood, was treated in this way every other day for five weeks, and thus got well. Another patient, forty years old, whose water had passed from her involuntarily for three years ■while walking, got well in three weeks under this treatment. Brandt and Boldt have also reported numerous successful cases treated in this way when other means had failed. A lady who had been treated by some of the most eminent German specialists by dilatation of the urethra, electricity, etc., for incontinence of urine of six years' duration, was cured by Brandt in eight days. In two cases of chil- dren, aged nine years, Boldt reported success after treat- ment of three weeks. Dr. Sanger's method is also a sort of massage, and has been successfully used for incontinence of urine in fe- males. It consists in dilating the vesical sphincter with the patient in the dorsal position. The urethra is disin- fected and a metallic female catheter is passed into the bladder a distance of from five to seven ctm., so that its point is on a level with the orifices of the ureters. The tip of the right index-finger being kept in the mouth of the catheter prevents the urine from flowing off, while the index- and middle-finger of the same hand steady the in- strument. The index- and middle-fingers of the left hand are placed upon the catheter close to the urethral orifice, and with these the operator makes a springy and forcible pressure, at first downward and then toward both sides, alternately, so that the urethra becomes widely open and urine flows out by the side of the catheter. Thus the sphincter of the bladder and the muscularis of the urethra are strongly stretched. Further massage can also be done by a finger in the vagina or rectum pressing against the catheter. The stretchings are not very pain- ful, but in sensitive people the urethra can be previously brushed with a ten per cent, solution of cocaine. Ten or twelve seances usually suffice. They should be twice daily at first, and later every other day. The stretching causes an irritation of the sphincter which makes it con- tract more strongly, both in a direct and reflex manner, and thus a certain degree of hypertrophy from work is set up. This method is not applicable when there is an abnormal dilatation of the neck of the bladder and of the urethra with incontinence.' Douglas Graham. 1 Practitioner, vol. xxxiv., No. 5. 5 Archives O6ncrales de Medecine. September, 1891. 3 Sanunlung klinischer Vortriige, No. 19. 4 Dublin Journal of Medical Science, November, 1891. 5 The Provincial Medical Journal, January, 1890. 6 Dublin Journal of Medical Science, October, 1891. MASTOID ANATOMY, FROM THE SURGICAL STANDPOINT. From its revival, in the middle of this century, the operation of opening the mastoid process to evacuate pus, which had undergone an eclipse after its introduction by Petit (1750) and Jasser (1776), has been growing greatly in frequency and success. To this nothing has contributed more than the anatomical stud- ies which have thrown increasing light upon the struct- ure of the parts involved and pointed the way to avoid- ance of the dangers which surround it. Now, the well-posted aurist feels that the Held is as safe as any in surgery, that the indications for operation are as well defined, and that the serious or fatal results of timidity or neglect are as likely to be the subject of lay criticism as unlucky temerity would have been at an earlier epoch. The advances of pathology have cleared up many of the mysteries as to the causation of brain- abscess, septic thrombosis, and neck-abscess, formerly not recognized as aural in origin ; and the progress of otological teaching and practice has done much to dis- seminate information and lead each medical man to call in the aid of a specialist when he feels unwilling to pro- ceed unaided. The earlier operations were usually either guided by the presence of a fistula or softened bone, or were done with a blind boldness that could not be often repeated with- out disaster; and the procedures described and com- mended were sometimes such as could rarely be safe. Because Kolpin bored a hole up and back of Von Berg- er's ear, where he was certain to enter the cranial cavity or the lateral sinus, the operation was discarded for a century. In like manner the real dangers of imperfect procedures and the magnified risks of those better planned have greatly retarded the due acceptance of the measure. Yet the wide experience of many men has de- monstrated the value of operation for the saving of life, of hearing, or of time ; since the fatality among the cases not operated upon is many times greater ; the dam- age to the organ of hearing, when they survive, gener- ally much more serious ; and the treatment, though at times many months long after operation, is apt to extend over years without it. Only in cases where the indica- tions are very doubtful can the over-cautious any longer claim that it is less dangerous for the competent surgeon to temporize than to explore; and as the knowledge is spread of the best rules as to when and how to operate, a still more brilliant showing will be made. The mastoid process is a conoidal protuberance of the lower posterior portion of the temporal bone, forming the major part of the insertion of the sterno-mastoid mus- cle. It is developed from the outer part of the petro- mastoid and the lower posterior part of the squamous, and enlarges from an inconspicuous tubercle at birth to form the large process usually found in the adult. It is a response in part to the needs of the muscle in- serted upon it, and shows an external development usu-. ally corresponding to the general osseous and muscular development of the individual ; being large, rugged, and massive in most strongly built males; smaller, smoother, and thinner-walled in females and those of slight physique. Its posterior border is only partly marked by the deep digastric fossa or groove, which in- tervenes between its apex and the skull-base ; anteriorly its convex external surface slopes inward to become the back wall of the meatus. Above, it may be said to extend to the curving and often ill-defined temporal 598 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Massage. Mastoid Anatomy. ridge ; but is better considered to end at the imaginary horizontal line on the level of the upper wall of the ex- ternal meatus (Fig. 392). Almost exactly at the junc- ture of these anterior and superior limits there may al- most always be found a depressed groove or pit, below which a ridge or spine projects toward the canal. This spina supra meatum, to which Bezold especially directed at- tention, is present in the great majority of cases, and forms as fixed and clear a guiding-point as can be taken, not only for its structure. Hence they are hardly in existence when the mastoid forms but a tiny tubercle in in- fancy ; but they increase in number and size with the growth of the process, and exhibit extreme growth by the thinning of walls and septa and the coalescence of adjacent cells in the rarefied bones of senile individuals. Whether pneumatic or diploetic, they are gener- ally present throughout the process and extend into the adjacent squama and petrous, and may even communicate with similar cavities in the occipital. Among two hundred and fifty tem- poral bones, Zuckerkandl found 36.8 per cent, wholly pneumatic, 20.4 per cent, wholly diplo- etic, and varying combinations of pneumat- ic spaces and diploe in 42.8 per cent. The question as to how often an apparently sclerosed condition may be met in normal bones is still an open one,- although its oc- currence is well established. Among sixty-five pairs and fifty single macerated temporal bones, in the writer's collection, examined in this regard, only tw'enty-three, or thirteen per cent., showed absence of completely pneumatic structure throughout, although in sixty-two more, or thirty-five per cent., the cortex and the intra-cellular walls were thick and massive. Fig. 393 shows a metal cast of one of these fully pneumatic mastoids, Fig. 394 of one which was half diploetic, and Fig. 395 one in which pathological sclerosis had rendered it a nearly solid, ebur- nated mass. The pneumatic cells are claimed to show in general a pear-shape (Figs. 396 and 397) and a radiating Fig. 399.-Right Temporal Bone, showing the vertical and horizontal lines and the position for opening the mastoid antrum. (After Nuhn.) all measurements of the temporal bone, but for the en- tire cranium. It was absent or very ill-defined in but five temporal bones among one hundred and eighty in my collection, examined as to it-every time on the right; Kiesselbach found it in eighty-two per cent, of juvenile and eighty-seven per cent, of adult bones. The median surface of the cranium, at the part which may be considered the inner surface of the mastoid, is grooved more or less deeply by the sigmoid sulcus to ac- commodate the lateral sinus, which is formed by separa- tion of the layers of the tentorium in its posterior part, but is wholly in the posterior cranial fossa as it passes down to the jugular fora- men. The middle cere- bral fossa is partly formed by the squama and reaches downward to- ward the upper wall of the canal. The height of its floor is subject to great individual differences, and also at different points of the same bone, being lowest in front and rising backward/ It is, however, practically never so low as the base line of the mastoid, al- though not rarely lower than the temporal ridge. It cannot be said, like the lateral sinus, strictly to belong to the anatomy of the mastoid ; yet it has too great practical importance to be omitted in our consideration of the field of operation. The interior of the mastoid is more or less filled by cavities, usually pneumatic, and lined by extensions of mucous membrane from the tympanum, with which they communicate. They may serve some unknown physiological purpose in connection with hearing, but probably they are only to be regarded as rarefactions of Fig. 394.-Metal Cast of the Spaces of a Temporal Bone, in which only the portion of the mastoid adjacent to the antrum was occupied by pneumatic cells, while the major part of the process was diploetic. (Randall.) direction, the smaller ends pointing toward the mastoid antrum, with which they communicate. This antrum, which has been generally described as the most constant in size and position of the mastoid cells, is really the up- per posterior cavity of the tympanum, being full-formed at birth and of about the adult dimensions. Its later changes are principally in the fenestration of its walls for communication with the adjacent cells. The antrum is superficial in infancy, its outer wall and part of the Fig. 393.-Metal Cast (freed by cor- roding away the structure of the bone itself) of the Spaces of an ex- ceedingly Pneumatic Mastoid, showing the large cells so developed that only the thinnest septa re- mained to separate them. (Ran- dall, Corrosion Anatomy.) Fig. 395.-Metal Cast of a Sclerotic Mastoid, in which the extensive pneumatic spaces had been almost without exception filled by ebur- nated bone tissue, and but a single chain of pneumatic cells extended down from the antrum to the tip of the mastoid process. (Randall.) 599 Mastoid Anatomy. Mastoid Anatomy. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) upper being furnished by the thin vertical plate of the squama ; but the thickness of the outer plate increases with maturity, reaching an average of 12 mm. as the squama grows outward to form the bony external meatus (Fig. 396). There is no dividing-line above be- tween tile antrum and the attic (recessus epitympanicus), turn, which deeply grooves the bone at times in its passage to the mastoid foramen, where it unites with branches of the external jugular system. Rarely this emissary re- ceives nearly or quite all of the blood of the lateral sinus, and may present quite a bulla where it enters the bone ; the jugular foramen then giving exit merely to the in- ferior petrosal. Sac-like bullae are also found upon the anterior part of the lateral sinus, and may thin the bony wall toward the meatus or the mastoid surface, even forming a considerable de- hiscence. The bony surface of the sulcus is generally entire, though often as thin as paper- be- tween it and the adjacent cells ; Jret dehiscence here is only a little ess rare than in the tegmen. The relation of the sigmoid sulcus to the outer surface of the mastoid and to the back wall of the canal depends upon a series of varying factors. The sinus which it accommodates varies greatly in size, form, an'd posi- tion. The mastoid process pre- sents very differing dimensions, wholly independent of the blood- vessel, and the interposed bone may be solid, diploetic, or full of pneumatic cells, and thus present wholly dissimilar grades of pro- tection against injury in the open- ing of the mastoid. Indetermi- nate as the mastoid process is in size, there is usually fair symmetry, so that the form of one mastoid when concealed by swelling may generally be determined from a study of the other. In a study of forty-eight pairs of bones Bezold found an average length of the process below the spina of 25.17 mm. on the right, 25 mm. on the left (19 to 31 on each side), with a max- Fig. 396.-Vertical Section of Mastoid Process at Right Angles to the Axis of the Auditory Canal, showing highly developed pneumatic cells and their radiating relation to the antrum. (After Eysell.) Fig. 397. - More Compact Temporal Bone, cut vertically at right-angles to the auditory canal and showing thicker septa of bone and medium- sized cells. (After Eysell.) the thin tegmen rooting in both cavities (Fig. 400, upper half) ; but the facial and external semicircular canals form a lower median prominence, which serves to nar- row the communication and constitute the aditus ad antrum (Fig. 400, lower half). Measured from the middle of this threshold the antrum is 10 to 12 mm. in length, while about 6 mm. in breadth and height. Leidy de- scribes backward and outward exten- sions of the antrum as occurring at times. Its long axis is about the same as that of the tympanum and tube, and at an angle of some fifty degrees to the axis of the external meatus (Fig. 401); but one case was found by Bezold where, on each side, the antrum lay above, and not at all behind the meatus. Its inner- most end is, therefore, close above the upper posterior extremity of the audi- tory canal, but it diverges from it as it passes back and out, and the intervening wall of bone is wedge-shaped, as it in- creases to 4 or 5 mm. in thickness. This septum is rarely solid, but so occupied by small cells that the actual bony separa- tion is quite readily broken down by antrum disease and a fistulous opening formed into the upper back part of the meatus. The groove upon the inner posterior surface of the mastoid for the lateral sinus (sulcus sigmoideus) is one of the most varying features of the temporal bone. Generally distinct, but shallow, and presenting gentle curves, it may be almost too faint for recognition (Fig. 398); or again of double the usual size and with strongly pronounced curves and margins greatly overhanging (Fig. 399). Receiving the superior petrosal at about the point where it turns down- ward, and the inferior petrosal near its entrance into the jugular fossa, it ex- periences some change in size and form on this account. It gives off generally a good-sized emissary vein near the lower Figs. 398 and 399.-Horizontal Sections of Right and Left Temporal Bones at the Level of the Middle of the Auditory Meatus, showing the position of the sigmoid sulcus of the lateral sinus at F, in the left far anterior, and closely approaching the meatus and outer mastoid surface: further hack, and separated, in the right, by abundant pneumatic cells from the meatus and surface. (After Hartmann.) Fig. 398. Fig. 399. 600 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Mastoid Anatomy. Mastoid Anatomy. imum difference of 5 mm. where the right was larger, and of 3 mm. where the left was larger. Among fifty pairs of temporals in the writer's collection, studied in like manner, the average length was 28.3 mm. (35 to 21) right, 29 mm. (38 to 22) left, with a maximum difference (SUPPLEMENT.) only thirteen right and nine left among his forty-eight pairs), is given as forty per cent, by Schulzke (24:5 among 60), was tifty-six per cent. (28 + 5?: 12) among my fifty pairs, and among two hundred and forty skulls was forty-four per cent. (106+29? : 59+24 ?). With this larger size, which may be due to the fact that' the superior longi- tudinal sinus generally goes to one side instead of dividing its blood stream at the torcular, and that the right jugular furnishes a shorter and readier path to the heart, there is often a more power- ful flow of blood, which may be the reason for a more curved and deeply hollowed sigmoid sulcus. Hartmann and Bezold noted that the sinus extended in about equal proportion outward and forward (Figs. 405 and 406); and Koer- ner confirmed this so decidedly that he measured only its exten- sion outward to approach the outer surface of the mastoid. Koerner also studied the relation of this curved superficial position to the general form of the cranium (Figs. 402 and 403), and confirmed Bezold's showing that it is more usual in brachycephalies (skulls short for their breadth). These views are combatted by Schulzke, who found little relation between the anterior and the external loca- tion of the sinus, and that the more dangerous position was commoner among the dolichocephalic (long and narrow) skulls. This contro- versy deserves careful statement and analysis, as it furnishes some of our most important data as to the anatomy of the mastoid. Koerner made x ig. 4UU.-Horizontal Section of Left Temporal Bone, showing an extreme anterior and superficial position of the sigmoid sulcus, bringing the lateral sinus almost into contact with the meatus wall and the mastoid surface in the region of the spina, and rendering wholly impossible the ordinary operation for opening the antrum. (Randall, Photographic Illustrations.) of 5 mm. with larger left, and 3 mm. with larger right. Hartmann measured from the linea temporalis and found an average length of 32.4 mm. (23 to 42) and breadth 26.7 mm. (18 to 35). The less determinate breadth averaged in the writer's series 22.9 mm. (17 to 27) right, 22.5 mm. (16 to 28) left, with a difference only once as much as 3 mm. No such symmetry exists as to the sigmoid sulcus ; on the contrary, one, more often the right, is almost always larger. This larger size of the right sinus, which Bezold, with Riidinger, estimated at seventy per cent, (although Foss.sigm. -Meat.and Squama. Sigmoid sulcus. Temporal ridge. Mastoid cells. Fig. 402.-Horizontal Section of a Dangerous Temporal Bone, showing the anterior position of the lateral sinus, which closely approaches the auditory meatus and the mastoid surface, and lies in the operation path to the antrum, A.m. (After Koerner.) Spina. . Internal auditory canal. the claim that the broad skull generally showed a lower cerebral fossa and a more forward and superficial posi- tion of the lateral sinus than the skull of lower index ; and that this relation was more m a r k e d upon the right side. Hence the mere measurement of the length and breadth of a patient's head and consideration of which side is affected would serve to f u r n i s h most important prognostic data as to the safety or dan- ger of operation. This re- lation he ascribed to the incurved line of the mas- toid and the upward direc- tion of the pyramid in the External au- ditory canal. 'Carotid canal. Jugular fossa. Tip of mastoid. Zygoma Fig. 403. - Outline Sketches of Casts of the Sigmoid Sulcus seen from the side. A, from brachycephalic ; B. from do- lichocephalic skull, showing at x the point of greatest curv- ature and most vulnerable posi- tion. (After Koerner.) Fig. 401.-Posterior Inferior Aspect of Temporal, sectioned nearly front- ally to show the mastoid cells between the lateral sinus and the exterior, generally thin-walled toward the sigmoid sulcus and the digastric fossa within the mastoid tip. 601 mastoid Anatomy. Mastoid Anatomy. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. brachycephalic skull (as shown in Fig. 405). He meas- ured in sixty skulls the thinnest point of the mastoid over the sinus, and in a later paper gives the data of (SUPPLEMENT.) tion of the sulcus, so that it remains wholly uncertain from his data whether the superficial sinus lay in or wholly beyond the field of operation. In Bezold's earlier work this point is well studied, and he gives the average distance of the sinus from the mastoid surface as 7.6 mm. (2 to 17), at an average distance of 15.6 mm. (6 to 24) horizontally back of the spina supra meatum. Koer- ner's results are rather specious, therefore, as to the vul- nerability of the sinus. A much more important point was determined by Hartmann among the fifty pairs of bones he operated on and then sectioned. He measured the distance between the lateral sinus and the posterior wall of the auditory canal at about the level of the spina, finding it to vary from 5 to 19 mm. (Figs. 406 and 407), with an average of 11.5. In 41 of the 100 bones it was 10 mm. or less (in 1, 5; in 5, 6 ; in 6, 7 mm.). In like manner Schiilzke found in sixty skulls the meatus-sulcus distance to vary from 3 to 20 mm. It averaged 11.9 mm. (3 to 16) on the right and 13.4 mm. (10 to 19' on the left in nineteen dolichocephalic skulls, and 12.5 mm. (5 to 20) right, 13.7 mm. (5 to 20) left in thirty-six brachy- cephalic skulls; the general average being 12.4 mm. right, 13.6 mm. left. The maximum difference in any skull was 7 mm. where the right, and 4 mm. where the left, was farther forward. Similar figures from twenty-seven skulls measured by Koerner gave averages of 12.50 mm. for dolichocephalic, 12.28 mm. for brachycephalic, 11.86 mm. right and 12.91 mm. left, with a maximum differ- ence of 7.2 mm. in any one Fig. 404.-Outline Sketches of Casts of the Sigmoid Sulcus seen from above, showing the stronger curves and more outward extension in the brachycephalic, A, than in the dolichocephalic, B. (After Koerner.) twenty-seven more, while in a third paper he sets forth the results obtained from horizontal sections of twenty - seven of the same pairs. Yet Koerner's figures show the strange omis- sion of any reference the position of this most superficial por- Fig. 405.-Schematic Vertical Section of Skull showin, on the right, B, the brachycephalic form with the mid die cerebral fossa as low as the linea temporalis, the out curving squama and the ascending petrous. The an trum, Am, lies above the spina supra meatum, and the dotted operation track has to take a strongly upward direction. On the left. A, is shown the dolichocephalic skull with vertical squama, high cerebral fossa and low, safely accessible antrum. (After Koerner, Arch, of Otology. XVI.) 602 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. jHaKtoid Anatomy. Mastoid Anatomy. case. Study of two hundred and forty skulls has fur- nished the writer with an average of 11.9 mm. (1 to 20) right, 12.8 mm. (0.2 to 20) left, with the right sinus more anterior (13 mm. max.) in 101 and the left (7 mm. max.) in 78. The eighty-five long skulls gave (SUPPLEMENT.) sinus, as to which Koerner makes his showing, averaged 7 mm. (0 to 17) right, and 7.5 mm. (0.5 to 22) left, among the writer's two hundred and forty skulls, and its posi- tion back of the spina 16.5 mm. (1 to 25) right, 15.8 mm. (1 to 24) left-figures of small significance except in showing, as do the other parts of the study, that mini- mum results may be met on either side and in any form of skull. Another series of measurements made by the writer have probably more importance than either of the former. The distance was determined between the most vulnera- ble point of the sinus and a point 5 mm. behind the spina -thus giving the "operation room" presented by each specimen. This averaged 10.9 mm. (2 to 19) right and 11.7 mm. (1 to 20) left, among 85 dolichocephalic skulls ; the right sinus being in the more dangerous position in 43 and the left in 24. For the 120 brachycephalic skulls the averages were 11.6 mm. (3 to 18) right, 12 mm. (1 to 20) left, the more exposed sinus being fifty-two times the right and thirty-eight times the left. For the entire 240 skulls it averaged 11.4 mm. (2 to 19) right, 11.9 mm. (1 to 20) left, with the right the more dangerous in 112, the left in 72, and equality in 56.* In like manner, among the writer's fifty pairs of temporals, the right averaged 9.76 mm. (3 to 16), the left 9.66 mm. (0.5 to 16), the more dangerous side being twenty-one times the right and eigh- teen times the left. In eight instances the operation room was 5 mm. or less-4 on each side ; the maximum difference was 8 m m. with the right, 5 with the left, the greater distance. It appears, therefore, from an analysis of all available data that the right sinus is usually larger, m ore anterior, and more vulnerable than the left, but in a degree too slight to be of practi- cal moment ; while the position of extreme dan- ger may be met on either side and in any form of skull. Bezold's observa- tion that an unsymmetri- cal skull has the more dangerous sinus on the larger side is as good a guiding indication as we can find. The other limitation of the operative field in opening the mastoid is the position of the floor of the middle cerebral fossa. This cavity ex- tends in rare instances down to the field of the operation, and uncovering or wounding of the dura mater is readily possible in an ill-placed opening (Fig. 407). So long as the tinea temporalis was accepted as an index of the height of the fossa, blunders were easy, since its variable position furnished no true criterion. The upper wall of the auditory meatus or its adjacent spina are now the usual guiding points, and by keeping below these safety is assured. In this matter of the height of the fossa Koer- ner has thought that a relation to the skull-form can be found, and that the brachycephalic skull and the right side (Fig. 409) are the more dangerous (Fig. 410), and that dehiscence of the tegmen tympani is therefore more common on the right (Fig. 407) and in brachy- cephalies, with consequent more frequent right-sided cranial involvements. His measurements of 87 skulls showed the height of the fossa above the upper meatus wall to average 11.5 mm. (7 to 17) among the very long, 8.7 mm. (4 to 14) among the less dolichocephalic Fig. 406.-Vertical Section of Pneumatic Left temporal Bone at right angles to the Auditory Canal, showing abundant cellular interspace be- tween the sigmoid sulcus and the meatus. (After Hartmann.) (Same lettering as in Fig. 407.) exactly the same figures as the whole series, while the one hundred and twenty short skulls gave averages of 11.4 mm. (1 to 19 right), 12.5 mm. (1 to 20) left, with the more anterior sinus forty times on the right and forty-four times on the left. Such figures wholly fail to support Koerner's view, Fig. 408. - Dehiscent Areas in the Roof of the Tympanic Attic and Antrum of a Right Temporal Bone, with a low middle cerebral fossa. The internal auditory meatus is seen to the left, part of the sig- moid sulcus to the right. Fig. 407.-Vertical Section at Right Angles to the Canal, M, of a diploetic right temporal bone, showing a forward and superficial position of the sigmoid fossa, F, and a low middle cerebral fossa, C. (After Hart- mann.) and the choice of the twenty extreme examples at each end of the scale gave averages of 11.5 mm. right (0 to 17) and 13.1 mm. left (9 to 16) for dolichocephalic, as com- pared to 12.8 mm. (7 to 17) right and 13 mm. (10 to 16) left for brachycephalic. His findings must, therefore, be regarded as accidental. The thinnest point over the * Measurement of these dimensions with one branch of the calipers passed through the foramen magnum in the intact skull probably slightly exaggerates, since an error, fairly uniform throughout the series, and less than a millimetre in amount, was probably introduced from slight obliquity of the placing of the instrument. 603 Mastoid Anatomy. Mastoid Anatomy. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. skulls, as against 5.2 mm. (2 to 9) in the brachycephalic. Schiilzke, on the other hand, found a low fossa (10 mm. or less) in fourteen long, ten medium, and fourteen short specimens, although 36 of his 60 skulls were brachy- cephalic ; and 20 times it was on the left side, and 18 on the right. The average was 11.2 mm. (8 to 17) right, (SUPPLEMENT.) temporal ridge and its convexity in the horizontal plane passing gently into the auditory canal, is probably safe ; but there is no possibility of predicting the real condition, and nothing can relieve the surgeon of the duty of oper- ating as though the case were known to be very dan- gerous. The cells of the pneumatic mastoid are generally larg- est and thinnest-walled at its apex and especially upon its median aspect toward the digastric groove. Hence suppuration may rather readily break through in this region, especially when the outer mastoid cortex is thick. Dehiscence is not rare in this region, and may be met upon the outer aspect; but emphysema from such a con- dition almost never occurs. The third structure to be avoided in opening the mas- toid is the prominent inner wall of the antrum, where lie the facial and the horizontal semicircular canals. Generally these lie deeper than the part of the antrum reached by the operator ; yet in a sclerotic mastoid there may be danger of striking them when the antrum is not found. These structures are never farther outward than the upper posterior tympanic margin, and this point may usually be found with the probe on the patient and its depth used as a guide. It is easily measured on the macerated bone, and its distance from the spina is given as 12 to 17 mm. by Allen. In my fifty pairs of temporals it averages 17 mm. (14 to 20) from the spina, and 19 mm. ( 16 to 21) from the operation point, 5 mm. back of the spina. A penetration of 15 mm., therefore, could hardly in any case wound these structures. Yet in many cases uncovering or necrosis of the bone may render uncertain the limits of the antrum, while calling for curretting of the surface. Cautious efforts should, therefore, be made to determine the location of these very important canals, since penetration of the semicircu- lar canal may be the death-blow to the auditory appara- tus, and through it or the facial, pus may readily pene- trate to the cerebral base with fatal effect. A point formerly more considered, and still practically Fig. 409.-Diagram of Right Temporal Bone Sectioned Horizontally and Showing the Inclination of the Tubo-tympanic Axis, C, D, to the sagittal plane of B; the length, m n, of the upper back wall of the mea- tus, and the depth, o, p, of the antrum from the operation point. (Af- ter Allen.) and 11.1 mm. (8 to 16) left, among the long ; 12.5 mm. (8 to 19) right, and 12.2 mm. (8 to 18) left, among the short ; with general averages 12.1 mm. right and 11.9 mm. left. The height was equal in 12, differed but 1 mm. in 41, and its maximum difference reached 4 mm. in only one case. In the writer's fifty pairs of temporals the right averaged 4.82 mm. (1 to 10), the left 5.41 mm. (2 to 11), with a maximum difference of 4 mm. among the 23 where the right fossa, and 12 where the left, was lower. In his study of this point in 240 skulls, the writer determined the vertical height of the fossa above the spina and the lateral displacement in the frontal plane within or beyond the spina. The averages were 6.5 mm. (1 to 14) right, and 6 mm. (0 to 14) left, with the left fossa lower in 138 and the right in 53. It was a shade lower in the brachycephalic-6 mm. (1 to 14) right and 5.8 mm. (0 to 14) left-than in the dolichocephalic-6.6 mm. (1 to 14) right and 6 mm. (1 to 12) left. The lowest point thus determined generally lay within the spina, sometimes 5 mm. internal, at times 5 mm. external, to it; while in some cases where it was but 1 mm. above, it was exactly over the spina. In no instance was it below the spina ; although at times lower than the upper mar- gin of the auditory meatus. In these measurements the extreme length and breadth of the skulls were taken to obtain the index, as was done was by Schiilzke, in accord with most craniologists ; although Koerner had used the breadth between the parietal protuberances. The dis- tance was also measured from spina to spina, and from sulcus to sulcus within, at the widest point. It was thus shown that the sinus, like the middle cranial fossa, not rarely lay farther outward than the spina or the more prominent operation point, yet was far enough back to be well out of reach and covered by 5 to 7 mm. of bone. It was therefore evident that the form and convexity of the mastoid process itself play an important part; and that irrespective of the size and position of the sigmoid sulcus there may interpose a thick wall of compact or cellular bone to protect the sinus, even when its large size and sweeping curves make the danger of its position seem inevitable. This question, therefore, of the exterior configuration of the mastoid process, as revealed to pal- pation of one or both bones, may be really our very best indication as to the probable safety or danger of opera- tion on the bone before us, as was pointed out by Bezold. A large mastoid, with not too deep a concavity below the Fig. 410.-Horizontal Section (upper half) of the Left Ear, with the Soft Parts in Place, showing the location back of the meatus, Jf, and the spina, Sp, of the posterior insertion of the auricle, I. The glenoid cavity, G, the tympanum, T, and the jugular, J, are also shown ; and the sigmoid sinus, /J, which in this case is safely distant from the field of operation, is seen to be most superficial opposite the insertion of the auricle. well worthy of mention, is the relation of the soft parts to the more important bony structures beneath. The incision preliminary to opening the mastoid has generally been made 5 to 10 mm. back of the insertion line of the auricle and not carried down very far toward the mastoid tip in order to avoid the branches of the posterior auric- 604 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Mastoid Anatomy. Mastoid Anatomy* ular. Only to the aural specialist long unaccustomed to general surgery has the spirting of these little arteries any importance. Even in the swollen and infiltrated tissues they can generally be readily seized with haemos- tats and afterward twisted, should they tend to bleed at all when released. It is more important, perhaps, to cut slightly behind the insertion of the auricle, in order that there may be the least projection of the pinna subse- quently. The old rule that this insertion marked the point for entering the bone, has been wholly superseded ; and it may be better said to mark the usual location of the most superficial part of the sinus (Fig. 411). Ac- cording to Bezold it averages 15 mm. behind the spina, but Hartmann's finding of 10 to 12 mm. is probably more accurate. The older operators usually selected the area thus posterior to the auricle for entrance ; modern operators usually work in the area covered by its inser- tion. A third location has been advocated as the best site for all cases-as it certainly is for some-the mastoid surface anterior to the spina, which constitutes the pos- terior wall of the auditory canal. For a case like that shown in Fig. 410, no other entrance would be possible at the usual level. Here we may be sure of thin bony plates to be opened, and a shorter, safer path to the antrum. Yet a little swelling of the soft tissues of the canal will serve to impede greatly free access to such an opening or the free exit of discharge ; and whether made from the canal or from the incision back of the auricle, it is probably rarely so satisfactory as the more usual perforation. The thin walls of the cells upon the median surface of the mastoid tip have been referred to. They are some- times dehiscent, as Bezold found four times among 200 skulls, and often so thin as to be broken in the specimens; in 22 they could be readily pierced with a needle. Hence it is easy for pus to break through into the digastric fossa, thence to burrow beneath the fascia of the neck to form post-pharyngeal, deep cervical, or even mediastinal abscesses. Generally in the cases of this sort clinically met, there is a distinctly excessive thickness (whether natural or pathological, of the outer lamella of the mas- toid, which probably as greatly influences the result as does the thinness in the digastric fossa. Such pus col- lections are apt to be concealed from ready detection by the interposition of the bony process and the tendon and muscle of the sterno-mastoid, which may, as a whole, be pressed outward. Surgical common-sense seems to demand that these cases should be attacked at the pos- terior margin of the digastric groove, where the neck ab- scess and the mastoid empyema are both within reach, the pus fully evacuated, and then such counter-openings made as the case may demand. A sinus can generally be found upon the digastric surface of the bone, and through it the interior can be emptied of pus and granulations, so that irrigation can pass freely in to the tympanum ; yet a more typical opening of the outer surface of the bone at or below the usual point is also called for to give free access to the antrum. Bezold, indeed, now does this alone, neglecting the lower opening unless compelled to interfere here also ; yet this seems to ill accord with the anatomical conditions presented. The anatomy of the juvenile mastoid presents great variations according to the age, as has been previously suggested. A mere tubercle upon the surface of the in- fant temporal, some distance from the lowest part of the bone, the mastoid process changes in every respect as it grows. Small as are the general dimensions of the bone, some parts are full-sized even thus early. The tympanum undergoes little change in after-years, except in being separated from its fellow by the growth of the skull base between, and more deeply buried by the out- ward growth of the auditory canal. The size of the an- trum, as of the other portions of the tympanum, increases little after birth ; but while the bony wall separating it from the exterior grows from almost nothing to a thick- ness of 10 to 15 mm., the separation from the lateral sinus steadily decreases (Fig. 411). Hartmann found this wall never less than 3 mm., generally 4 mm., in 21 temporals of new-born infants ; while in 12 bones of children from one to five years it averaged 2 mm., but was hardly 1 mm. in 5. This is due to the pressing for- ward of the lateral sinus as it grows, grooving more deeply the inner aspect of the petro-mastoid. It thus tends to approach the auditory meatus, for while in 40 infant bones measured by Hartmann the meatus-sulcus Fig. 411.-Portion of Skull showing Trephining Opening at T, with a dark line above to indicate the usual height of the middle cerebral fossa, the curved lines posteriorly to show the usual limits of the lat- eral sinus and the horizontal line at A, part of Reid's base line, pass- ing through the lower edge of the orbit and the occipital protuber- ance. (After Birmingham.) distance averaged 12 mm., and was never less than 10 mm. in the 12 bones of children from one to five years, it was sometimes but 8 mm., with an average of 10 mm. In 16 bones of individuals from five to twenty years it averaged still less. Similarly the writer found among 10 tempo- rals of new-born infants in his collection a distance averaging 6 mm. (4 to 7 mm.) between the sulcus and the antrum, and 13 mm. (11 to 14 mm.) between the sig- Fig. 412.-Left Temporal Bone Chiselled to Open the Mastoid Cells and Antrum. The opening, although not so extensive as sometimes figured and advocated, could be safely thus made in only a fraction of cases. (After Politzer.) moid sulcus and the meatus. This latter dimension had an average of 11 mm. (8 to 14 mm.) among 15 temporals of children from one to five years of age, the smaller distance being in the more developed bones-figures a little greater than the average in the adult, and presenting no such minimal measurements as are there often found. The antrum is, therefore, readily reached at little depth 605 Mastoid Anatomy. Meninges, REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. in tbe child, and the lateral sinus is generally well back of probable injury. The middle cerebral fossa is gener- ally low (1 to 5 nun.), averaging 3 mm. ; and in not a few instances a large venous sinus deeply grooves the most vulnerable outer portion of it. The spina is more often lacking and tbe outer margin of the meatus is less well-defined than in the adult ; so special care should be taken to avoid penetration at too high a point. Bibliography. Zoja, G. : Annales Universales, clxxxviii., p. 241, 1864. Zuckerkandl, E. : Monatschrift fiir Ohrenheilkunde, 1873 ; Schwartze's Handbuch, 1892. Buck, A. H. : Archives of Ophthalmology and Otology, vol. vii, Politzer. A. : Handbuch, 1887. Schwartze A Eysell: Archiv fiir Ohrenheilkunde, vol. vii., 1873 ; Schwartze's Lehrbuch, 1885. Bezold, Fr. : Monatschrift fiir Ohrenheilkunde, 1873 ; Archiv fiir Ohren- heilkunde, 1881. Hartmann. A. : Archiv fiir klinische Chirurgie, vol. xxi., p. 335 ; Text- book, 1887. Leidy, J. : Science. May and June, 1883 ; Elementary Anatomy, 1889. Koerner, O. ; Archives of Otology, vol. xvi., p. 281 ; vol. xviii, p. 310 ; vol. xxi., p. 431. Schuelzke, O. : Archiv fiir Ohrenheilkunde, vol. xxix., p. 201. Birmingham, A. : Transactions Academy of Medicine, Dublin, January, 1891; Jones and Stewart's Text-book, 1892. Allen, S. E. : The Mastoid Operation. Cincinnati, 1892. Randall, B. A. : Preliminary Notes on Craniometric Studies in Relation to Aural Anatomy, Transactions of American Otological Society. 1892 ; The Corrosion Method in the Study of the Anatomy of the Ear, Trans- actions Philadelphia College of Physicians, 1890; Photographic Illus- trations of the Anatomy of the Ear, second series. B. Alexander Randall. MATLOCK. A favorably known spa and summer re- sort in Derbyshire, England. Location.-Matlock is situated on the banks of the river Derwent, between the sheltering tors of Matlock Dale. The place is noted for its agreeable summer cli- mate just as much as for its indifferent thermal springs. Bradshaw describes the place as follows : "Matlock Bath is built partly in a valley, through which flows the river Derwent, and partly upon terraces of tufa, deposited from its warm springs. It is sheltered from the north and east by the heights of Masson and the High Tor. To the south and across the Derwent are the grounds of Willersley Castle. There is a large pavilion in which a band plays and concerts are given during the summer, and a promenade by the side of the Derwent. The neighborhood is very beautiful and picturesque." Access.-Matlock Bath is reached by the Midland Railway in a four hours' trip from London. Analysis.-The temperature of the springs is 68° F. Their chief mineral ingredients are magnesium sulphate, carbonate of lime, and sodium chloride. But the solids amount to only about thirty grains per gallon of the water. Matlock water is palatable, owing to a fair pro- portion of free carbonic acid gas. Indications.-Matlock is resorted to in cases of gout, rheumatism, bladder affections, skin diseases, and mild neuroses. Scrofula is also said to be treated with good results there. Accommodation.-The bathing establishments, ho- tels, and lodging-houses are only moderately comfort- able. Edmund C. Wendt. MENINGES (THE ENVELOPES OR MEMBRANES OF THE BRAIN AND SPINAL CORD). § 1. Introduc- tory Note.-During the preparation of the present arti- cle points supposed to be clear have proved to need further elucidation, and problems altogether unexpected have arisen, demanding for their solution time, mate- rial, and apparatus at present unattainable.* Indeed, so impressed has the writer become with the vague- (SUPPLEMENT.) ness, inadequacy, and inconsistency of current accounts, and with the necessity for a re-examination of the meninges in all their relations, that only a sense of obli- gation to the patient and considerate editor who has en- trusted him with the subject stands in the way of re- treat at the eleventh hour. Necessarily transmitted to the printers at a certain time, the article is neither so clear, consistent, correct, concise, nor complete as the writer would wish it to be. The least unsatisfactory position relates to the question of the existence of a nat- ural communication between the true cavities of the brain and the spaces ectad of it. Of the eleven figures four (418. 420, 421, 422) are origi- nal. One (423) is from Henle, and one (417) from Sappey. The diagram, Fig. 416, from Dr. Langdon's paper, 1891, is kindly loaned by the author. The remaining four (413, 414, 415, 419) are copies of the reductions of figures by Key and Retzius in Quain's "Anatomy." * In quoting from these and other works the terms pre- ferred by the present writer are commonly employed. Seethe article, "Anatomical Terminology." in Vol. VIII. Fig. 413.-Transection of the Myel and its Meninges in the " Upper " Thoracic Region. Enlarged somewhat from Key and Retzius (Taf. i., Fig. 7), after Quain (iii., Fig. 132). a. Dura (not the spinal perios- teum, but representing the ental layer of cranial dura) ; b, arach- noid ; c, septum posticum ; d, e, f, trabeculae in the subarachnoid space, those at / supporting the dorsal (posterior) nerve-roots ; g, ligamentum denticulatum ; A, ventral (anterior) nerve-roots, cut off; A, I, subarachnoid spaces. The pia is not designated, but may be recognized as the double outline of the myel dipping into the dorsal fissure as a narrow septum and into the ventral as a fold. Note.-The foregoing is substantially the description in Quain. But some of the writer's observations lead him to suggest that the spinal, like the cranial, arachnoid comprises two layers, a dural and a pial, connected by the reflected layers of the septum posticum. This view, however, would homologize the space k, I, with the intrarachnoid space of the cranium, and hence their free communication with the postcis- terna would be difficult to explain. S 2. Points illustrated by Fig. 413. + A. The subcyl- indrical form of the myel, and the relations of the areas of alba and cinerea at this level ; for these and most of the other features shown in this figure see the account by Spitzka, Vol. VIII., pp. 476-477. B. The existence of a dural sheath (theca) of the myel, independent of the periosteum, the two being united in the cranium. C. The somewhat loose adhesion of the arachnoid to the dura, leaving slight and scattered subdural spaces. D. The presence of the septum posticum at this level; it is said (Quain, iii., 188) to be most perfect in the cer- vical region, and more or less incomplete farther cau- dad4 E. The size of the subarachnoid space traversed by the * The conditions of investigation of the meninges are peculiar. The pia and arachnoid are relatively delicate : they are easily torn and their at- tachments ruptured. But they are surrounded by an unusually tough membrane, the dura, and the whole is enclosed within a case of bone which must be sawn or otherwise forcibly opened by measures which are almost su'e to rupture the pia and arachnoid. It is much to be desired that the whole subject be reviewed by some anatomist having the use of a mechanical bone-cutting apparatus, e.g., the electro-osteo- tome of Dr. M. J. Roberts. * Besides those here included, the new figure, 182, of the tenth edition, vol. ii., is worth consulting, although not altogether satisfactory. + See note under the description of Fig. 413. J (Septum posticum is an undesirable term, but septum dorsale might be confounded with the prolongation of the pia into the dorsal fissure of the mye). 606 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Mastoid Anatomy. Meninges. spinal nerve-roots, the trabecuke, and the ligamentum den- ticulatum. F. The location of the ligamentum denticulatum at either side of the myel. As shown in Vol. VIII., Fig. 5047, 9,9, 9, and described on p. 477, this is a fibrous band connected with the pia, and reaching the dura by a tri- angular extension in the intervals between the nerve- The term pachymeninx (tough envelope) is sometimes used for the dura, irrespective of the recognition of a pa- rietal layer of arachnoid. In like manner leptomeninx (tender envelope) is sometimes used for the pia and the commonly admitted visceral layer of arachnoid. The pathological terms, pachymeningitis and leptomeningitis, are derived from these words. § 5. Points illustrated by Fig. 414. A. The formation of a nerve-root from the union of several funiculi or rootlets. B. The extension of the myelic dura upon the root at its exit from the spinal canal, to be lost in the sheath of the nerve. § 6. The Pia.-This was formerly more often called pia mater,* sometimes also meninx tasculosa (Ger., dunne Hirnhaut, weiche Hirnhaut; Fr., pie-mere). It is deli- cate, fibrous, highly vascular, and intimately connected with the neuraxis, into the substance of which it sends numerous nutrient small vessels. When stripped off, these vessels commonly break at a short distance from the pia, and their number and minuteness impart to the ental surface of the membrane a flocculent or woolly aspect, the tomentum; Vol. VIII., p. Ill, § 11, F. § 7. Myelic Pia.]-This is thicker and firmer than the encephalic, less vascular, and more closely adherent to the nervous substance. It has sometimes been called the " neurilemma of the cord." Two layers are recognized : the ental, sometimes called intima pia, sends a fold into the ventral ("anterior") fissure, and into the dorsal a lamina not recognizable as a fold. Along the ventri- meson the pia presents a conspicuous fibrous band, the linea splendens, not represented in Fig. 413. § 8. Points Illustrated by Fig. 415.-A. The relative positions of the meninges; compare Fig. 416 and Vol. VIII., Fig. 4687. B. The formation of the longitudinal sinus within the substance of the dura. Fig. 414.-Section, Lengthwise, of a Ventral Nerve-root at its Place of Exit from the Spinal Canal. Enlarged. From Key and Retzius (Taf. i., Fig. 10) after Quain (iii., Fig. 128). a, Four funiculi uniting to constitute the root ; b. dura reflected upon the root at its emergence through the intervertebral foramen (the periosteum is not shown) ; c, arachnoid ; d, reticular lamella of the arachnoid reflected upon the root (compare Fig. 413,/) ; s, subdural space; s', subarachnoid space. roots ; but opposite the roots (as in this figure) it is nar- rower, and does not reach the dura. § 3. Definitions.-Meninges is the plural of meninx, from the Greek finviyl, signifying any membrane or coat- ing, as of the eyeball, and even the scum upon milk or •wine ; but, as stated by Hyrtl (" Onomatologia," p. 324), the word was restricted by Aristotle ("Hist. Anim.," lib. i., cap. 16) to the coverings of the brain (and myel ?), and the limitation has been since maintained. The syn- onyms of meninx are: Fr., meninge ; It. and Sp., me- ninge ; Ger., Himhaut. § 4. The Three Meninges.- Nearly all anatomists rec- ognize three chief membra- nous envelopes between the substance of the neuraxis (brain and spinal cord) and the cranio-spinal canal, viz. : An ental, the pia; an ectal, the dura; an intermediate, the arachnoid. Their rela- tive positions when the cra- nium is opened are indicated in Vol. VIII., Fig. 4687. Properly speaking the pia pertains to the neuraxis, and the dura to the cranio-spinal canal, while the arachnoid has more or less varied rela- tions to both the other me- ninges. All three present dif- ferences according to their location within the cranium or the spine, and there are transition conditions in the cephalic portion of the latter which are not yet fully made out. ♦ The reduction of the polyonyms, pia mater and dura mater, to the mononyms, pia and dura, was urged by the writer in 1880 in a paper be- fore the American Association for the Advancement of Science. Since that time the uae of pia and dura, and of the natural adjectives, pial and dural, has become quite general. The simplification has been recom- mended by the Association of American Anatomists (December 27, 1889) and by the American Association for the Advancement of Science, 1890 M . .... . . . , . n obscure it. --dura. i pia. ■-cortex. -mcdul'a. Fio. 415.-Transection of the Dorsal. Mesal Region of the Cerebrum, to show the.Meninges and Arachnoidal Villi. Slightly enlarged. From Key and Retzius (Taf. xxix., Fig. 4) after Quain (iii.. Fig. 134). Preparation.-The spinal subarachnoid space (Fig. 413, k, I) was injected with a fine blue mass, which filled (and distended ?) the corresponding space upon the cerebrum and entered the arachnoid villi. The original figure is appropriately colored and on a larger scale. Judging from the relation between the width of the falx, and the interval between it and the callosum, the plane of section was not far cephalad of the splenium ; see Fig. 418. c.c.. callosum ; f, falx : x. falcial sinus ; s.a. (at the left), subarachnoid space. Defects.-The pia is not as distinct ns the writer would make it. The relation of the arachnoid to the ventral margin of the falx is not quite clear. There is no extension of the cortical cinerea upon the dorsum of the callosum as an indusium ; see p. 104, § 47. There is no indication of the existence of the two layers of the dura, e.<j„ periosteal and encephalic, described by Spitzka (Vol. VIII., 47) and Langdon (Fig. 416). The falcial (inferior longitudinal) sinus may have been absent in this case, as it is said to be in many (Browning, Vol. VIII., 241). The lacuna1 lalerales are somewhat indistinct, probably inconsequence of the reduction from the original figure, where they are much more clearly shown. 607 meninges. Meninges. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) C. The projection of the arachnoid villi into the sinus and the parasinual spaces; see Browning, Vol. VIII., p. 242. D. The accumulation of the villi at one point, on the right, to such an extent as to cause the protrusion of the dura, and presumably a depression of the ental surface of the cranium. E. The separability of the arachnoid from the pia, leaving a distinct subarachnoid space increased along the fissure lines. F. The conterminousness of the arachnoid and the falx, and their separation by a distinct interval. § 9. The Encephalic Pia.-According to Quain (iii., 186), only the ental of the two myelic layers of the pia is represented on the brain, but where and how the other layer' disappears is not stated. The pia follows all the undulations of the encephalic surfaces, dipping into the fissures and rimulas as folds or rugas of corresponding depth ; see Fig. 300 and Vol. VIII., Fig. 4687. At the bottom of the intercerebral fissure, the rnesal cleft be- tween the dorsal portions of the two hemicerebrums, the pia enters the callosal fissure at either side, is then reflect- ed, and crosses the callosum. Since the pia is practically the ectal surface of the brain, its cut edge is not commonly represented excepting when the figure is on a very large scale ; but on diagrams its §11. 1 he Plexuses.-At several localities in the brain the pia forms vascular quasi-intrusions (choroid plexuses) into the cavities, carrying before it, however, the endyma lining those cavities, so as to be, strictly speaking, ex- cluded therefrom ; see Figs. 60, 61, 62, and 418 ; also Vol. VIII., Figs. 4708, 4709,4710, 4740, 4745,4749, and 4751.* § 12. Points Illustrated by Fig. 416.-A. The existence of two layers of dura in the cranium, the one correspond- ing with the periosteum of the spinal canal, the other with the dural sheath of the myel, Fig. 413, a. B. The existence of two layers of arachnoid-an ental or pial, and an ectal or dural. C. The propriety of regarding the so-called subdural space as an intrarachnoid space, analogous with the se- rous sacs in other parts of the body ; see § 24. § 13. The Dura.-This mononym is rapidly replacing dura mater and the German hartc Hirnhaut; see § 6, note. As shown in Figs. 414 and 415, and in Vol. VIII., Fig. 4687, the cranial dura is apparently a single sheet, dense, strong, fibrous, and unyielding, fining the bones and constituting their ental periosteum. But a closer examination detects two layers, an ectal and an ental, which gradually separate in the cephalic part of the cer- vical region, and in the spine maintain diverse relations, the one with the canal, the other with the myel. § 14. The Theca.-The ental or myelic portion of the spinal dura constitutes a fibrous tube, the theca. It is consider- ably longer and larger than the myel itself, and separated from the periosteum, constituting the wall of the canal by venous plex- uses and much areolar tissue. The cavity between the pia and the dura is occupied by cerebro- spinal fluid (ccelio-lymph), and is divided by the curtain-like arach- noid into the spaces subdural and subarachnoid. Within the latter the myel, closely covered by pia, is suspended, being kept in posi- tion by a ligament on each side, ligamentum denticulatum (Fig. 413), which fixes it at frequent in- tervals to its sheath, and by the roots of the spinal nerves (Fig. 413, f), which cross the space from the surface of the myel to the intervertebral foramina. § 15. The Epidural Space.- In the spine, since there are two layers of dura, an ectal (periosteal) and an ental (myelic), the interval be- tween them constitutes an epidural space. In the figures this is nowhere clearly shown, but it may be represented in Fig. 413 by drawing around the pres- ent ectal outline, the myelic dura, a second at a little distance therefrom ; the interval would be the epidural space. § 16. Two questions naturally arise in connection with the epidural space. 1. Does it communicate with the subdural space ? If so, where ? 2. If not, what is the source of the liquid occupying the space, and what is its nature ? § 17. Points Illustrated by Fig. 417.-A. The relation of the dura to the cranium as a complete lining of con- siderable thickness. B. The relation of the falx and falcula, as mesal ex- tensions of the dura, to the tentorium as a transverse ex- tension. C. The tent-like form of the tentorium, the lateral margins coinciding approximately with the long axis of -Periosteum. -Calva. -Dura -Ectal arachnoid. -Intrarachnoid space. -Ental arachnoid. -Subarachnoid space. -Pia. ectal. ental. Fig. 416.-Schematic Transection of the Parietal Region of the Newborn, to show the Relations of the Meninges to the . Cerebrum and Cranium. From F. W. Langdon. 1891. C, C. cerebrum ; F, falx; S, longitudinal sinus; xxx, subserous connective tissue between the dura and the ectal arach- noid. Defects.*-The mesal dark area dorsad of S (the longitudinal sinus) represents the ligamentous connection of the two parietal bones; it should be continuous with the periosteum and ectal dura. The "subserous dura," between the dura and the arachnoid, represented by the series of crosses, is made too wide in nrouortion. vascular character may be instructively'indicated by a red line.f Sometimes, as in Fig. 59, §43, 6, the pia forms the only boundary of an area. § 10. The Telas.-As has been described in Vol. VIII., p. 118, § 44, Fig. 4707, the ccelian parietes, i.e., walls of the true encephalic cavities, typically comprise three con- centric layers, viz., an ental endyma, an ectal pia, and an intervening brain-substance. The endyma and the pia are nearly uniform in thickness and constitution ; the ner- vous layer varies considerably in cellular structure and even more in thickness, from thin and apparently func- tionless areas, terma, valvula, etc., to the enormously thickened roof of the paraccele (lateral ventricle). In most animals at two places, and in man and apes at three, the proper nervous wall disappears (or in some cases, per- haps, is never formed), leaving the endyma and the pia in contact. The membranous area so constituted is a tela. The roof of the metacoele is the metatela (tela choroidea inferior) -, Fig. 59 and Vol. VIII., Figs. 4684, 4710, and 4711 ; that of the diacoele is the diatela (Fig. 59 and Vol. VIII., Figs. 4711 and 4751. In man and apes a zone of the paracoelian floor is a membranous paratela. Fig. 61 and Vol. VIII., Figs. 4750 and 4751. * On the mode of formation of the rima (sometimes called choroid fis- sure) independently of the blood-vessels, see His, " Die Formentwickel- ung des menschlichen Vorderhirns," etc., Leipzig, 1889, pp. 694 and 712, as quoted by Cunningham, ''Surface Anatomy of the Primate Cere- brum," 1892, p. 3. ♦ Dr. Langdon informs the writer that the cut does not represent the original drawing quite fairly in some respects. + On such diagrams the endyma ("ependyma" or lining of the cavi- ties) may be represented by yellow or green. 608 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Meninges, Meninges. the cranium, the intermediate portion rising toward the meson at an angle rapidly increasing from the occiput cephalad. I). The inversion of the falcula as compared with the falx. E. The general arrangement of the more prominent fibres of the falx ; there is a marked divergence or radia- tion from about the place of intersection of the free mar- gins of the falx and the tentorium. F. The locations of the principal sinuses along the lines of attachment of the dural folds to one another or to the cranium. G. The direction of the current in the principal sinuses: (SUPPLEMENT.) (cerebelli). Its topographical relations with several of the sinuses are described by Browning, Vol. VIIL, pp. 241-242, and indicated in Figs. 417 and 418. The tentorium exists in most, if not all, mammals, but not, so far as the writer is aware, in other vertebrates; in the Carnivora it is ossified. § 19. The Falx.-From the cerebral side of the ten- torium extends cephalad a mesal duplicature of the dura, the falx, well named from its sickle-shape ; Figs. 417 and 419. The narrower cephalic end is attached to the crista gaUi. The distance between the free margin of the falx and the callosum increases cephalad. The relations of the falx to the longitudinal and falcial sinuses are shown in Figs. 417 and 418. § 20. The Falcula.-This name (wrongly printed falcicula) was proposed by the writer as, a mononym for falx cerebelli, designating the mesal fold of dura which extends ventrad from the tentorium to the foramen magnum, where it bifurcates. It is vaguely shown) in Fig. 418, 5, more clearly in Fig. 417, 13. § 21. The Fontanels (Fr. fontanelles}.- These are the intervals between the cor- ners of the infantile parietal bones before these corners have formed sutural union with the adjacent bones. There are six fontanels, two mesal and two pairs of lateral. The lateral, at the cephalic and caudal angles of the ventral border of the parietal bone, are small, irregular, and of comparatively little interest. The two mesal fontanels are at the ends of the sagit- tal suture ; their more common designa- tions, anterior and posterior, may appropri- ately give place to prefontanel and post- fontanel. § 22. Analogy of the, Fontanels with the Telas.-The structure of a tela was de- scribed in § 10. But since, in mammals at least, the telas are alw'ays more or less closely adherent to adjacent parts, and their margins are easily detached, their relations are sometimes not clearly appre- ciated. But if an infant or foetal cranium be divided across the prefontanel diagon- ally, so as to include either parietal bone and the opposite frontal, the cut edge will present three layers, viz., an ental, the dura, representing the endyma ; an ectal, the pericranium, representing the pia ; an intermediate, the bone, representing the nervous parietes. At the fontanel this third element is absent, and the conjoined dura and pericranium contribute a mem- branous area quite comparable with a tela and available for illustration thereof. A defect in the analogy is this : The cranial bone is of nearly uniform thick- ness, and thins out at the margin of the fontanel. But in the brain, although the immediate margins of the telas may be thin, the general parietes are commonly very massive, and there is usually a par- allel zone specially differentiated, e.g., the habena. * § 23. Points illustrated by Fig. 418 as to Meninges and Vessels ; other points are indicated in Vol. VIIL, pp. 121-123. A. The degree of retention of the dura in this speci- men is greater than wdth any brain ever seen or heard of by the writer. The brain was most skilfully removed, according to the writer's directions, by Professor W. C. Krauss, a former student; see p. 117, § 33. Fig. 417.-Mesal Aspect of Right Half of Medisected Skull retaining the Dura. X .5. From Sappey (iii., Fig. 462); after Quain (iii., Fig. 129). Compare Fig. 759 in Vol. II. of this work. Def'ctt.-As usual, there is no indication of the change that occurs at or near the foramen magnum, by which the apparently single dura of the cranium divides into a true dura related to the myel (Fig. 413) and a spinal periosteum; see, however, Quain, iii., Fig. 182. The region of the postoccipital sinus (12) is so heavily shaded as to give the impression of its considerable width ; as shown in the original of Sap- pey, this sinus is no larger than the subpetrosal; according to Browning (Hand- book, VIII., p. 242), this is merely a constituent of the irregular basilar plexus of venous channels. The vein of Galen (25) here joins the tentorial sinus at an angle of about 45° ; really, as shown in Fig. 418, it curves about the rounded splemum and joins nt nearly a right angle. 1, falx; 2, longitudinal sinus; 3, concave ventral margin of falx; 4, falcial (in- ferior longitudinal) sinus; 5, base of the falx where it joins the tentorium ; 6, ten- torial (straight) sinus or s. rectus; 7, cephalic, narrow end of falx, a little dorsad of the crista galli to which it is attached ; ventrad of the line is a frontal (air) sinus, seen also in Fig. 4684 ; 8, right side of tentorium, sloping latero-ventrad from the at- tachment to the falx to the side of the cranium along the lateral sinus (9); X, the tor- cular, the place of confluence of the two lateral sinuses, the longitudinal and the falcial; 10, the superpetrous (superior petrosal) sinus ; 11, the subpetrous (inferior petrosal) sinus; 12, postoccipital (posterior occipital) sinus ; the arrows indicate the direction of the blood in the larger sinuses; the lateral sinus is continuous with the ento-jngular vein; 13, fdcula (falx cerebelli); 14, optic nerve; 15, oculo-motor nerve; 16, trochlearis nerve; 17, trigeminus (trifacial) nerve; 18. abducens nerve; 19, facial and auditory nerves; 20, glosso-pharyngeal, vagus, and accessory nerves; 21, hypoglossal nerve ; 22, 23, first anil second cervical nerves ; 24. cephalic end of the ligamentuni denticula'.um (see Fig. 413); 25. union of the velar veins to constitute the vein of Galen opening into the tentorial sinus (see Fig. 418). in the longitudinal (2) and tentorial (6) (with the falcial, (4)) toward the torcular ; in the lateral (9), toward the exit in the base of the skull at the jugular vein (4), in the superpetrosal and subpetrosal (10, 11) to the lateral. H. The entrance of the supercerebral veins into the longitudinal sinus at the points indicated by the black spots in the course of the latter and at others not indi- cated ; see Vol. VIII., p. 237. § 18. The, Tentorium.-The cerebral region of the cranium is partitioned off from the region containing the cerebellum by a fold of the ectal layer of the dura, which, from its arched shape, is called the tentorium ♦ It is proper to add that, although this analogy between the telas and the fontanels had already occurred to the writer, he was reimpressed with it on listening to an admirable lecture upon the anatomy of the brain by Professor D. K. Shute, at the Columbian Medical College, Wash- ington, D. C., December 16, 1889. 609 Meninges. Meninges. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. B. The existence, in the caudal three-fifths of the cerebrum, of a distinct and considerable mesal depres- sion, containing the longitudinal sinus, so that here the retreating surface of the dura is seen beyond its dorsal cut margin ; presumably this corresponded with a mesal thickening of the cranium. C. The distinctly sickle-shape of the mesal extension of the dura between the two hemicerebrums, whence its name, falx. D. The non-correspondence of the width of the falx with the area dorsad and cephalad of the larger part of the callosum. E. The location, form, and extent of the medicisterna {cisterna ambiens), the irregular space between the cere- bellum, the splenium, and the geminums, roofed by the arachnoid and tentorium. (SUPPLEMENT.) F. The location, form, and extent of the ventricisterna (cisterna intercruralis), between the crura, the pons, and the tuber* (tuber cinereum), infundibulum and hypophysis. It forms a very deep indentation of the ventral outline of the brain, corresponding with the cranial or mesen- cephalic flexure ; Vol. VIII., p. 112, § 16. It is bridged by the arachnoid, following substantially the line of the dura, and thus includes the arteries of this region. G. The location, extent, and form of the postcisterna (cisterna magna cerebello-medullaris), the interval between the dorsum of the oblongata, the cerebellum, and the adjacent portion of the cranium, or strictly the ectal layer of arachnoid in that region, represented by the black line marked 10 ; see Figs. 420, 421. H. The location of the metapore (Foramen of Magen- die), the orifice in the metatela (tela choroidea inferior), constituting the roof of the metacoele or me ten cephalic portion of the " fourth ventricle." The metapore is thus a direct orifice of communication between the metacoele, one of the encephalic cavities, and the post- cisterna, a part of the subarachnoid space ; see Figs. 422, 423, and § 28, note. In this specimen its relations are complicated by the postcerebellar ar- tery, a loop of which lies just dorsad of it; see under. Defects. I. The location of the postcerebellar artery. This is not named on the fig- ure and is imperfectly shown. The central portion, from its origin at the vertebral, is invisible here, but shows in Figs. 420 and 423. Just at the side of the metapore it turns sharply upon itself, forming a loop, somewhat as in Fig. 420, but in the present figure the peripheral portion of the artery alone is seen, and looks as if it began in the metapore. The two principal divisions are as here represented. There is ap- parently considerable variation in the course and subdivision of this vessel. J. The length of the longitudinal sinus, equalling nearly the greater curvature of the cerebrum; its ce- phalic end was probably not quite reached. K. The presence of the falcial sinus (2) along the ventral, free margin of the falx. This is said to be often wanting; see Vol. VIII., p. 129, § 59, and p. 241. The writer suggests that the alleged absence of this sinus in the foetus may be due to its nondetec- tion. L. The straight course of the ten- torial sinus in line with the falcial, along the ventral margin of the caudal fifth of the falx, w'here the latter is continuous with the tentorium (Fig. 417, 8). The tentorial sinus is not named or otherwise designated on this figure, but in Fig. 417 it is numbered 6 ; it is also called straight sinus or sinus rectus. M. The junction of the mesal longi- tudinal and tentorial sinuses at the torcular (Herophili). The course of the lateral sinuses thence is indicated in Fig. 417. N. The location of the right velar porta pseudocoele | rostrum ; genu, ! ! ! tomlconiniHisure ; । inedicomnussure 12 velum ; ; J ! fornix . aulix. habena / supracommissure conanum spleniuni termatic pregeminum.; ■-aqueduct $ ^postconunissure Kv postgeimnum iw\ _ .valvula ■M&C , h ngula^ pre cerebral ccpuJa/ / aula/ / precorrrmissure' terma ■ i । o ■ optic n. । { [ chiasmal < I hypophysis! I albicans' postcribrum ' torcular 5 crus! ■ \ myel myeiocoele \ \ x nodulus 10 ' metatela meta pore Fio. 418.-Mesal Aspect of the Right Hemiencephal of an Adult White Man. 376 X-65. 1, auliplexus; 2, falcial sinus ; 3, right velar vein ; 4, orifice of Galen's vein into the tentorial sinus; 5. falcula or '•cerebellar falx;" 6, tentorial sinus; 7, uvula, a mesal division of the cerebellum; 8, tuber ("tuber cinereum"); the line seems to stop at the artery, but should reach the thin floor of the diacoele just caudad of the hypophysis; 9, ventral end of the falx ; 10, cut edge of the ectal layer of the arachnoid ; the line is too heavy and should be white in- stead of black ; at a point between the lines from 6 and 7 it becomes attached to the cerebellar piarachnoid ; 11, longitudinal sinus. Preparation.-This figure is reduced from the writer's Fig. 4711 in Vol. VIII. In addition to what is there recorded it should be said that the figure represents a combination of the more perfect portions of the two mesal aspects, and the left more than the right. The dura has since been removed, excepting its ventral margin. The left half has been transected through the mesencephal; the dorsal portion of the right hemicerebrum has been sliced off to the level of the paracoele, but secured in place with long pins. Defects.-Although one of the purposes of the preparation of the figure was to indicate the relations of the dura to the brain, the word is omitted altogether. Falx designates its mesal extension between the halves of the cerebrum, as shown in Figs. 415 and 417. Along the longi- tudinal sinus (11) should be indicated the points of entrance of the supercerebral veins (see Vol. VIII., Fig. 4684). The sinus, dorso-caudad of the cerebellum, between the torcular and the point marked 4, should be named tentorial sinus. On the precerebral artery, dorsc- cephalad of the chiasma, are two orifices. The more caudal, at the root of the termatic artery, is caused by the removal of the left precerebral (see § 23. P). The more cephalic, between the lines from copula and aula, should be omitted, together with the intervening depressed area ; they represent an accidental excavation of the artery. The arteries in the ventricisterna, the interval between the pons, the crura, and the tuber, are vaguely and inaccurately shown (see § 23, F). The postcerebellar artery (undesignated but lying between the lines from metapore and metatela) looks as if it begins in the metapore (see, however, § 23, H). The pia is nowhere distinctly represented. The black line marked 10 is the ectal layer of the arachnoid (see Fig. 421); the ental layer, in contact with the cerebellum, may be recognized : they unite just dorsad of the line from 7. The curved white line about midway between the callosum and the fornicommissure is due to an error; the surface of the hemiseptum forming the lateral wall of the pseudoccele should be uniformly shaded. * In previous articles in the Handbook the tuber cinereuni was called torus ; but the writer's attention has been called to the use of torus, either alone or in combination with semicircu- laris, to designate mesencephalic elevations in fishes; hence it will be better to retain the sub- stantive element of the original name. 610 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Meninges. Meninges. vein (3) between the splenium of the callosum and the •conarium, and its junction with its opposite at the point indicated by the circular spot at the edge of the splenium, just in line with the dotted line from that word. The two velar veins form the short vein of Galen. O. The brief course of the vein of Galen about the splenium, and its entrance at 4 into the tentorial sinus, at the place of continuity of the latter with the falcial when this is present. P. The location of the right precerebral artery (ante- rior cerebral). Branches of this are seen dorsad and cephalad of the callosum. The main trunk extends dor- so-cephalad from the chiasma. The dark spot between the dotted lines leading from the words terma and pre- commissure represents the junction of the two precere- bral arteries at the meson; in some cases they are sep- arated by a considerable interval and communicate by a Blender precommunicant artery. Here, however, they unite by their full width and again diverge. Q. The origin of the termatic artery from the place of junction of the two precerebrals ; its course, parallel with the terma and copula, then around the genu at least to the dorsum ; its short branches to the terma and ad- joining parts of the hemicerebral meson. R. The location of the postcerebral artery. The be- ginning of this, severed from the basilar, is represented by the circular spot between the hypophysis and the convexity of the pons. From it are seen small arteries entering the crura as described by Browning, Vol. VIII., p. 235. For the two large vessels represented in the ventricisterna, see under Defects. 8. The location of the aulix, the S-shaped furrow on the inesal surface of the thalamus ventrad of the medi- •commissure. This, originally called sulcus Monroi by Reichert (" Der Bau desmenschlichen Gehirns," Taf. ix., i.) is held by Minot ("Human Embryology," pp. 611, 680) to represent the fundamental division between the " dorsal and ventral zones of His." § 24. The Arachnoid.-The word arachnoid is derived from the Greek apdxvV (signifying either a spider or a spider's web), and elSos (form or likeness).* Our know- ledge of the arachnoid is even less complete and satis- factory than that of the dura and pia, and there are direct •contradictions in the accounts by different anatomists which the writer has as yet been unable to reconcile. As stated by Langdon (1891), Bichat described (1802, 1813) the arachnoid as a serous, shut sac, conforming in all essential particulars with the serosa of the other cavi- ties. But most recent writers follow Kolliker (1860) in denying the existence of a parietal layer in contact with the dura, and Tuke regards (1882) even the visceral layer as merely an element of the pia. § 25. On February 17, 1888, the writer made and re- corded the following observation upon a child, still-born, at term, No. 2258 : In removing the parietal dura, a del- icate membrane separated from it more or less easily in different localities on the two sides ; it was observed also by the writer's colleague, Professor S. II. Gage. Al- though this distinctly indicated the existence of a parietal (ectal) layer of arachnoid, at that time the writer supposed the subject, Meninges, would be treated by another, and was, moreover, then fully occupied with the articles al- ready undertaken ; hence the observation was not made public. § 26. On December 29, 1890, Dr. Langdon's paper (1891) was presented before the Association of American Anatomists. He records observations made upon two children, at term, and one adult. His summary is as follows : " The arachnoid is a true shut sac, similar in structure and function to the serosa of the other great cavities. Its parietal layer is easily separable from the dura at the vertex in the foetus and young infant, but practically inseparable in this region in the adult. At the base of the skull it is demonstrable as a separate membrane, even in the adult. To assert that the parietal layer of arach- noid is absent because its subepithelial connective tissue has fused at the vertex with the dura (connective tissue),. Fig. 419. - Medisection of the Cerebellum and Adjacent Parts. From Key and Retzius (Taf. viii., vii., Fig. 1); after Quain (iii., Fig. 131), reduced and somewhat modified. Compare Fig. 6, and Vol. VIII., Fig. 4684. 1, 1', Atlas vertebra; 2, 2', axis vertebra; 3, diacoele (third ventricle) ; 4, epicoele, the cephalic or cerebellar portion of the "fourth ventricle;" C, cerebellum; C.C., callosum; C', callosal gyrus; M, postoblongata; P. V., pons; X, falcula (falx "cerebelli) c, medicom- missure ; c.c., just dorsad of (behind) the myelocoele (central canal of the cord) ; f. M., meta pore ; p, hypophysis ; t, torcular. /'reparation.-A blue mass was injected into the spinal subarach- noid space ; the head was then frozen and medisected. The original includes the mesal aspect of the entire head, less the integument and mandible. The true encephalic cavities and the subarachnoid spaces are colored, so only the actual mesal parts appear. Defects.-In the original there is no indication of the arachnoid, although the circumscription of the subarachnoid space was the very feature supposed to be illustrated. Should it be claimed that the arachnoid is sufficiently indicated by the ental boundary line of the dura, the answer would be that, although in places the two meninges may be in contact, they are not in all; furthermore, as distinctly shown upon Taf. vi. of the same work, in Fig. 4711 of Vol. VIII., and in Figs. 420 and 421 of this volume, there is a point near the crest of the cerebellum (nearly opposite I) where the arachnoid (or its ectal layer) leaves the cerebellum and passes directly to the dura at the fora- men magnum. There is no boundary between the metepiccele (fourth ventricle) and the subarachnoid space ; even if, as in other cases, the membranous roof of the metacoele (metatela) adheres to the caudo- ventral surface of the cerebellum, the plexuses and the endyma consti- tuting its ental surface must end somewhere; see p. 119, § 49. The copy in Quain (9th and 10th eds.) omits the face and most of the cerebrum. Since the cavities are not colored, they appear as white areas without perspective, as if the preparation were a thin mesal slice. Most unfortunately, probably through some defect in execution, there is left a clear line between the conarium and the splen- ium, as if there were a passage from the diacoele (third ventricle) to the irregular subarachnoid space between the splenium, conarium, pre- geminum and cerebellum. This is altogether misleading, for. as shown in Fig. .700 and on 4684, 4711, and 4718, and stated on p. 123 of Vol. VIII., the diacoele is completely circumscribed at that point by the endyma reflected from the velum upon the conarium. In the present copy this defect has been remedied so far as it could be by uniting the conarium and splenium so as at least to block the passage ; but it should be remembered that it is closed not by nervous tissue but mem- branes. The editors of Quain have represented the missing metatela by the dotted line from near the number 4 to near the abbreviation f. M. A continuous line would have been more appropriate, and sep- arated farther from the metaccelian floor; that could not be changed in the present copy, but the interval representing the meta pore (fora- men of Magendie) has been enlarged somewhat. Finally, the falcula (falx cerebelli), which was unmarked in Quain, is here designated by a cross (x). * The open-meshed disks of the common garden-spiders, Epeira, Argicpe, etc., are not comparable ; rather the compact glazed sheet con- structed by one of the house-spiders (Tegenaria) which will hold water, or the still more substantial nest of the water-spider (Argyronetra), which is like a stationary diving-bell and retains the air nlaced under it against considerable pressure. is as incorrect as to describe the great omentum as one layer of peritoneum, because its original four layers have become matted and adherent." § 27. During the preparation of the present article the writer has verified the correctness of the previous obser- 611 Meninges, Meninges. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. vation as to the presence of an ectal or dural layer of arachnoid, and lias noted its reflection upon the carotid and vertebral arteries to become continuous, presumably, with the ental, pial, or visceral layer. But no such re- flection occurs at the nerve-roots unless at some depth within the foramens of exit, and this point the writer has as yet not had time to determine. § 28. Points Illustrated by Fig. 419.-A. The com- plete circumscription of the true encephalic cavities, ex- cepting at the metapore. A. The non-communication of these cavities with the pseudocode (fifth ventricle). C. The presence of considerable, irregular intervals, snbarachnoid spaces, or cisternas, between the pia and the arachnoid. D. The continuation of the largest of these, postcisterna, between the cerebellum, postoblongata and occipital part of the craniun, with the spinal subarachnoid space. E. The relation of the falcula (falx cerebelli) to the mesal portion, vermis, of the cerebellum; in Fig. 418 (SUPPLEMENT.) B. The extent of the postcisterna (cisterna magna or c. eerebello-meduUaris) upon about one-half the entire cau- dal aspect; there is, however, considerable variation in this respect. C. The definite dorsal and lateral limitation of the post- cisterna, although the boundary line is undulating and asymmetrical. D. The lack of ventral boundary of the cisterna ; the ectal layer of the arachnoid is attached to the dura so that this cisterna is continuous with the spinal subarach- noid space. E. The union of the two vertebral arteries to form the basilar. F. The origin of the postccrebellar arteries from the vertebrals near their junction. G. The length and course of the postcerebellar ar- tery, and the tortuous course of its central portion. H. The passage of a branch of the postcerebellar ar- tery mesad toward the metapore, apparently supplying the metaplexus. I. The extension of the metaplexuses dorsad from the metapore upon the cerebellum. § 31. The Postcisterna. - Notwith- standing the presumption that all the cisternas form a continuous series, the writer's observations, up to the present time, compel him to regard the space in the angle between the cerebellum and the oblongata as presenting an im- portant peculiarity, viz., as lying, not between the pia and the visceral arach- noid, but between two layers of the lat- ter. The facts upon which this view is based cannot be detailed here. The view is indicated upon Fig. 421. The writer is aware of the difficulties- involved in its acceptance; without question, the postcisterna communi- cates on the one hand with the true- encephalic cavities through the meta- pore, and on the other with the spinal subarachnoid space; its free com- munication with the other cisternas, although commonly accepted, seems to the writer not yet clearly demonstrated. § 32. Points Illustrated by Pig. 421.- A. The usual relation of the meninges in these respects, viz., the indepen- dence of the dura ; the adhesion of the pia to the brain-substance ; the dip- ping of the pia into the narrow depres- sion at either side of the vermis as a vascular fold; the adhesion of the arachnoid to the pia over most of the cerebellum, so as to constitute a piarach- noid ; Vol. VIII., Fig. 4687. B. On the caudal aspect of the cere- bellum, the formation of a consider- able space, the postcisterna, by the separation of an ectal layer of the ental or visceral layer of the arachnoid. § 33. The Metapore (Foramen of Magendie).*-Historical. On Decem- ber 18, 1826, before the Academie des Sciences, Magendie read the second part of his second memoir upon the liquid contained in the spinal canal and the cavities of the brain. It was published in the Journal de Physiologie for January, 1827, Tome vii., pp. 1-29. On pp. 21 and 22 Magendie declares that the fourth ventricle of the brain communicates with the subarach- noid space of the spinal canal through an orifice in the roof of the ventricle. He adds that, in the human adult, this is a constant condition easy to verify, and briefly de- scribes the method of exposing the brain for the pur- pose. Vallicula. 7 Postvermis. 6 5 Metaplexus. Tonsilla. 4 3 2 1 Myel. Postcerebellar a. Vertebral a. Basilar artery. Pons. Fig. 420.-Caudal (lower) Aspect of the Cerebellum, etc., No. 376 ; X .9. Preparation.-Through the kindness and skill of Dr. W. C. Krauss (a former student, now Professor of Pathology in the Medical Department of Niagara University in Buffalo, N. Y.), the brain was received fresh and in the dura. The cavities were injected with alcohol; the arteries first with alcohol and then with the starch mixture (p. 115, § 24). The alcohol passed through the metapore into the postcisterna and thoroughly preserved all the parietes ; it hail access also about the myel, where the arachnoid was cut in removing the brain. The ectal layer of the arachnoid was cut away along the line of its attachment. Defect*.-The perspective of the postoblongata is defective. The metapore is vaguely indi- cated and few of the vessels are shown. Of the lobes only the tonsillas are outlined. The flocculi and nerve-roots are omitted, also the rimuias (interfoliar crevices) on the left side. The most serious defect is the non-indication of the dorsal limit of the endyma which presum- ably accompanies the metaplexuses. 1, 3, Branches of the postcerebellar artery, the former passing between the cerebellum and the oblongata, the latter apparently supplying the corresponding metaplexus. 2, 6, Edge of the ectal layer of arachnoid bounding the area whence it had been cut away. 4, Loop of postcerebellar artery, an example of its tortuous course. 5, Main trunk of the artery near where it reaches the crest of the cerebellum; its branches are omitted. 7, Mesal ridge formed by the vein which divides into a right and left branch upon the cau- dal surface; the arachnoid here forms a somewhat sharp angle. this is obscured by the fact that part of the left lateral lobe remains. § 29. The Cisternas.- At several regions the ental layer of arachnoid is separated from the pia by consider- able spaces, called cisternas by Key and Retzius, 1875, p. 93.* They are enumerated and' briefly described by Browning, Vol. VIII., p. 244. § 30. Points Illustrated by Fig. 420.-A. The general appearance of this aspect of the cerebellum together with the oblongata and pons; in Fig. 4177 these two parts were omitted. * Admitting that most of the cisternas do He between the arachnoid and the pia. as commonly described, the writer's later observations lead him to regard the (>osteisterna as between two layers of the ental arach- noid itself ; see Figs. 429 and 421. * This portion of the article is based upon a paper by the writer, read before the Association of American Anatomists, at Princeton, December 29, 1892. See Amer. Neurol. Trans., 1893. 612 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Meningem. Meninges. Magendie designated the orifice as entree des carites du cerreau or entree des ventricules cerebranix. In 1855 Luschka published a description and figure of the ori- fice, which he re-named foramen Magendii. In the pres- ent article, as in Vol. VIII., p. 123, these and various other polyonyms are replaced by the mononym metapore, Latin, metaporus, signifying an orifice in the metatela, the membranous roof of the metacoele, the cavity of the metencephal. § 34. Most later anatomical writers have admitted the existence of the metapore, but the descriptions arc com- monly brief and the figures unsatisfactory. That by Key and Retzius is suspiciously symmetrical, though it is copied by Schwalbe ; Henle's (Fig. 423) is more natural; the best figures and the fullest description are those of Carl Hess, 1885, but no figure has the appearance of having been based upon a photograph. § 35. The metapore is regarded as an artificial orifice by Kblliker, 1884, p. 248, but apparently on a priori embryological grounds and without a personal examina- tion of carefully prepared adult brains. An orifice in the metatela is shown by Reichert (1859) in a transection, Taf. ii., Fig. 14 ; the description, p. 113, merely states that the roof is incomplete, but in the Resume, p. 185, he distinctly holds that any orifice in this region is arti- ficial. Gegenbaur (1888) admits the usual presence of the metapore (p. 819), but adds that it is sometimes absent, as in his Fig. 522. § 36. In 1884 (Cartwright Lectures on " Methods of Studying the Brain," New York Medical Journal, April 26, p. 458), the writer expressed doubts as to the existence of the metapore upon the following grounds : 1. Its absence in the cat and other animals examined. 2. Its morphological improbability, in view of the as- sumed conditions expressed in the phrases endymal con- tinuity and coelian circumscription. 3. The observed readiness with which membranous walls and adhesions are ruptured in the customary ma- nipulations of the brain. The paper of Hess (1885) and the possession of more perfect material, led to a re-examination of the subject. Several preparations were made and photographed (nega- tives 164 and 592). In a paper (1886), while reaffirming the unbroken continuity of the metatela in the cat, the writer stated that in man there is a mesal aperture ap- proximately rhomboidal in outline, and about 5 by 8 mm. in diameter. In 1889, in the article, " Gross Anatomy of the Brain," in the Reference Handbook, upon the supposition that a special article upon the meninges would be pre- pared by another, the writer restricted himself to in- dicating the location of the metapore upon a medi- sected brain, Fig. 4711 (this volume, Fig. 418), and to remarking, page 122, § 60, "that the meta pore un- doubtedly exists in man, though not, perhaps, in other vertebrates." The qualification was due to the condi- tions observed in a chimpanzee brain, but as this had been medisected no final conclusion could be derived from it. § 37. Notwithstanding the above declaration upon the part of one who at that time had been an anatomist for thirty years, in Minot's "Human Embryology" (1892), neither of the terms, foramen of Magendie or metapore, is used, and the whole subject is apparently disposed of in the following passages (p. 676):-" Several writers have thought that the membrane was broken through at certain points, but it probably is really continuous throughout life. The fourth ventricle is to be regarded, then, as an expansion of the central canal permanently bounded by the original medullary walls." The writer infers that Minot follows Kolliker in regard- ing the almost unanimous testimony of anatomists as inadequate to outweigh the presumption against the for- mation of an orifice in a pre-existing membrane ; yet he describes (p. 262, Fig. 170), under the name of oral plate, a septum between the mouth and the pharynx of the human embryo which must disappear before those two divisions of the enteron can become parts of a continuous canal. § 38. Aside, however, from the desirability of dispell- ing embryological scepticism, the question of the pres- ence or absence of the metapore involves so many and so serious considerations, zoological, physiological, psycho- logical, and even philosophical, that the writer has re- cently re-examined all the specimens in the Museum of Cornell University, and has prepared two with which the possibility of artificial disturbance of the natural relations had been avoided. As the result, the following proposition is submitted : In the normal adult human, brain there is a considerable orifice in the roof of the meta cade whereby the liquid of the encephalic cavities may escape into the postcisterna. The only cases of apparent absence are in the brains of two insane persons, one of them hydrocephalous ; but as both of these brains had been medisected, no final conclusion should be based thereon. arachnoid - POJTCIsrW/M pi arachnoid .dura -preverniis [noid. • dura and its arach- . intrarachnoid space. , ectal layer of ental arachnoid. • postcisterna [arachnoid. jental layer of ental - pia. paravermian sulcus. postvermis. pial fold. Fig. 421.-Sections of the Cerebellum and Postcisterna; semidiagram- matic. t A. Dorsal (cut) surface of the ventral portion of the cerebellum, to- gether with the adjacent dura and the large "subarachnoid space," postcisterna, commonly called cisterna magna or c. cerebello-medul- laris. At the meson appears the postvermis, separated by the para- vermian sulci (1) from the large lateral lobes ; 3 is the ental layer of the arachnoid. The meninges are here represented by lines only. B. Enlargement of the meso-caudal region of A. The meninges are here represented by zones conventionally shaded ; 2, the place of junction of the two layers of the ental arachnoid at the margin of the postcisterna. Preparation.-An adult cerebellum (2891) was divided at a plane corresponding with the line X-Y in Fig. 8, so as to separate the dor- sal two-fifths; on Fig. 4711 (Vol. VIII.) the plane of section would be indicated approximately by a line across the unshaded (cut) surface connecting the points where the dotted lines from the words nodulus and epicoele intersect the margin of that surface ; as seen in Fig. 420 it passes dorsad of the plexuses. The ectal layer of arachnoid is represented as the continuous caudal boundary of the postcisterna, while in Fig. 420 it is supposed to have been trimmed closely along the line of its depression from the ental layer 3. Defects.-For readier comparison with Fig. 421 the figures should have been inverted so as to have the postcisterna nearer the reader. In B the postcisterna is enlarged two diameters, but the several zones repre- senting the meninges are disproportionately widened, and their shad- ing is conventional for discrimination only, and not for the indication of histological structure. The ectal or dural layer of arachnoid was inadvertently omitted, and there is no indication of the two layers of the dura itself. The numerous rimulas and interventing foliums that were divided in the section are not indicated, and the usual relations ■of the pia and arachnoid to each other and to narrow encephalic de- pressions generally are illustrated only at the paravermian sulci. 613 Meninges. Meninges. DEFERENCE HANDBOOK OF THE MEDICAL SCIENCES. § 39. Points Illustrated upon Fig. 422.-A. The exist- ence of a natural orifice in the membranous roof of the " fourth ventricle.'' B. The simplicity of the form and relations of the metapore in this specimen. It is mesal, symmetrical, and oval. C. The appearance of the metaplexuses just within the cephalic margin of the metapore with no such extension upon the cerebellum as is shown in Fig. 420. § 40. There is perhaps no point in gross anatomy wherein the result is more dependent upon the method ; hence the procedures in the two cases where the orifice was last observed shall be described in detail. § 41. Alcoholic Specimen, No. 2655.-In the spring of 1890 the head of an adult man, with most of the neck attached, was received in a fresh condition. The brain was hardened in place by the continuous injection of alcohol through the arteries ; Vol. VIII., p. 200, and this (SUPPLEMENT.) volume, p. 114. The calva and contained portion of the cerebrum were sawn off, and the face with the frontal portion of the brain separated from the neck, cerebellum, and occipital region of the cerebrum. This latter mass was kept in strong alcohol until December 19, 1892. On this date, with a thin saw newly sharpened, the left side of the head and neck was removed so as just to clear the myel (spinal cord) and leave the region of the metapore wholly inclosed between the untouched right lobe of the cerebellum and the remnant of the left lobe. With a very sharp scalpel, frequently dipped in alcohol, the larger part of the cerebellum was cut away ; more of the cranium was sawn off, and the vertebral arches removed with nippers. During all these operations the thorough hardening of the soft parts had prevented any movement of the cranium upon the atlas. The remnant of the cere- bellum was now peeled cautiously up from its pia, and the left half of the oblongata cut out. Upon the region where the metapore was supposed to open was now dropped a little soapy water ; the point of a blow-pipe was directed at-not pushed into-the metacoele from the ventral side ; on blowing gently, bubbles formed on the dorsal side, showing the passage of air through the meta- pore. This was done in the presence of six witnesses, most of them trained observers. The writer was at first disappointed that the metapore was not patent to the eye, but soon remembered that the tendency of arterial alinjection is to increase the volume of the masses at the expense of the cavities; further, it was evident that in this, as in most cases, the convolutions of the postcerebellar arteries were intruding upon the region. Hitherto no instrument, even the comparatively safe syringotome (Vol. VIII., Fig. 4880), had approached the supposed location of the metapore. But when repeated trials had satisfied all interested that there was a natural communication, the syringotome was cautiously intro- duced, and the limits of the passage ascertained ; then with fine scissors the leftwTall was removed. The cephalo- caudal diameter of the metapore is more than 5 mm. ; its transverse diameter would be about the same in the fresh state, but a knuckle of the right postcerebellar artery encroaches upon it. In view of the ease with which natural membranous adhesions yield in poorly preserved brains, it is important to add that all the membranes in this preparation were firm and maintained their natural attachments so as to perceptibly resist separation. When it is added that the various operations upon the already hardened brain, which are briefly indicated above, consumed at least four hours, it may be believed that adequate precautions were taken against the production of any artificial conditions. Two stages of the dissection are represented in photo- graphs 590 and 591. § 42. Fresh Specimen, 2971.-The head of an adult man was received fresh through the kindness of a former student, December 21, 1892. The neck and occipital region were sawn away from the rest of the head ; the cephalic slope of the cerebellum remained attached to the cerebrum, but the larger part, containing the metapore, was undisturbed. The specimen was immersed in normal salt solution ; the blow-pipe was so placed that the stream of air entered the metacoele. As soon as it was used the air collected in the postcisterna and gradually distended the arachnoid. At this first trial, in the presence of one witness, the arachnoid, notwithstanding its extreme delicacy, was ab- solutely unbroken, and when the cerebellum was per- mitted to tilt slightly cephalad, as in photograph 593, the distended sac presented a really beautiful appear- ance ; during the subsequent manipulations a small rent was made at one margin where the arachnoid becomes attached to the cerebellum, so that the distention there- after was less complete ; it was observed, however, by several, that the air passed from the metacoele freely into the postcisterna, and the outline appears in the photo- graph, though vaguely. It is essential in this connection to call attention to the fact that when the cerebellum was permitted to fall pyramis. uvula. tonsilla. metatela. metaplexus, flocculus. met a pore. pons. oliva. obex. Fig. 422.-The Metapore (Foramen of Magendie) as Exposed by the Divarication of the Cerebellum and Oblongata. Specimen 318, Mus. Cornell University. X 1. Preparation.-The brain of an adult Swedish* carpenter was re- moved with great care, according to the writer's method, i.e., by di- viding the calva sagittally at the left of the meson (Vol. VIII., p. 199), so as to avoid tearing membranous adhesions. The brain was sup- ported on a bed of cotton ; the arteries and the arachnoid extending from the cerebellum to the oblongata were cut away and the two parts held asunder with fingers so as to expose the region of the metapore. A photograph was then taken, upon which the drawing is based. After hardening, however, most of the cerebellum was cut away and another photograph taken of the reduced mass. The specimen and both photographs were shown at the meeting of the Association of American Anatomists, December 28, 1892. Defects.-The right side of the cerebellum was displaced more than the left, giving rise to the marked obliquity. The metapore itself should be shown on a larger scale. The postcerebellar arteries are omitted ; they do not appear distinctly in the first photograph, and no record was made of their locations. This is unfortunate, since in all the cases where they are preserved their relations to the metapore are close. Had more of the caudal aspect of the cerebellum been included, there might have been shown the line of attachment of the arachnoid at the boundaries of the postcisterna. The wavy lines on the dorsum of the oblongata hardly do justice to the vascularity of the pia cover- ing that region. ♦The left hemicerebrum is represented in Vol. VIII., Fig. 4778. Since that volume was published, and indeed after the pages of the pres- ent volume containing corrections of the article " Brain " therein, the writer has learned from a relative of the carpenter that he was not a Hungarian, as first stated, but a Swede. 614 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Meninges. Meninges. cephalad it was held by the arachnoid, even after re- moval from the liquid. Through the transparent mem- brane it could be seen that none of the parts included within it were upon the stretch. Later the cerebellum and oblongata were removed from the remnant of cranium, the arachnoid was trimmed close to its attachment, and a second photograph (No. 594) taken. Then the specimen was hardened in alcohol and reduced to a more convenient size by cutting off most of the lateral lobes of the cerebellum. There is no reason to suppose that any of the mem- branous attachments have been torn, but the presence of the metapore is unmistakable. Even, therefore, if some doubt might be cast upon the reliability of the previously prepared specimens, the two whose preparation and examination have been here de- scribed, prove that Magendie and others have been cor- rect in affirming the existence of a mesal orifice in the roof of the metacoele. § 43. The writer now feels justified, not only in re- iterating the conviction which was expressed in 1886 and 1889, but in holding that upon the unbelievers now rests the burden of disproof. He is ready to demonstrate the metapore upon any fresh or well-preserved brain, and from the cephalic border of the metapore upon the uvula and pyramis of the cerebellum. C. The extension of the metaplexuses upon the thus everted ental aspect of the metatela, whereas in the spec- imen represented in Fig. 420 they barely appeared at the margin. D. The topographical relation to the metapore of the contorted postcerebellar arteries. E. The relation of the flocculus to the lateral recess. See Vol. VIII.. Fig. 4720. § 45. But while the main fact may be regarded as demonstrated, there are many subordinate points upon which our information is far from satisfactory. § 46. It is evident that there are two different arrange- ments. The simpler is apparently the less common. It exists in specimens 318, 376, 706, 2347, and 2870. Here, as in Figs. 418 and 422, the metatela is readily separable from the overhanging cerebellum, excepting, of course, at the cephalic margin, where its two constit- uents, the pia and the endyma, are continuous with the same membranes on the ectal and ental surfaces, respec- tively. In this kind the plexuses on the ental surface of the metatela appear, if at all, only just 'within the cephalic margin of the metapore. In the second kind the metatela adheres closely to the cerebellum, the two apposed layers of pia not being sep- arable ; thus the cephalic wall of the metapore appears to be the cerebellum itself; but the extension dorsad of the metaplexuses shows that it is truly the metatela. As yet the writer has been unable to determine the precise limit of the metatela. See Figs. 420 and 423. § 47. Since the metatela consists of two different mem- branes, the ental endyma and the ectal pia, we should know their exact condition at the margins of the meta- pore. An analogous case is the orifice of the oviduct, where mucosa and serosa become continuous. § 48. At ■what period of development does the meta- pore appear ? From the extreme softness of new-born and foetal brains, it is evident that artificial rupt- ure of the delicate metatela may easily be produced. Probably the best results may be anticipated from the examination of specimens prepared by transecting the brain at the mesencephal (gemina and crura), and in- jecting the preservative gently but continuously caudad through the mesoccele or aqueduct, so as to fill the cav- ities and fix the membranous attachments. § 49. How is the metapore produced ? Is there an absorption of material over a given area ? or is a rupture accomplished by spontaneous mechanical agencies, the margins of the rent becoming rounded off later ? § 50. What is the significance of the close topograph- ical relations of the postcerebellar arteries ? The length and tortuousness of these vessels can hardly fail to im- press anyone who carefully studies the region in ques- tion. § 51. Does the coeliolymph (cerebro-spinal liquid) pass in both directions with equal facility ? § 52. Is the non-formation or obliteration of the meta- pore a cause or merely a concomitant of idiocy, insan- ity, or hydrocephalus ? Horsley has recorded (Brain, July, 1885, p. 238) a case of encephalocele where the metatela was a "strong, fibrous sheet," and there have been already referred to two insane brains, one of them also hydrocephalic, where there is at least room for doubting the presence of the metapore. § 53. Does the metapore exist in any other animals, especially in the anthropoid apes ? If not, then its pres- ence would constitute one of the rather small number of absolute distinctions of humanity. Although the chim- panzee brain in the Museum of Cornell University prob- ably is the most perfectly preserved in the world, its medisection prevents us from relying implicitly upon it. So far as may be inferred, there was a metapore, the plexuses extending upon the caudal surface of the cere- bellum as in the second kind already mentioned. On January 11, 1893, through the kindness of Superintend- ent A. E. Brown, of the Philadelphia Zoological Gardens, the writer received the body of a baboon in excellent vallicula. arachnoid. pyramis. tonsilla. metaplexus. metapore. obex. postcerebel- lar a. vertebral ar- tery. Fig. 423.-The Metapore (Foramen of Magendie) and Adjacent Tarts nearly as represented by Henle. (Anatomie, iii., Fig. 232.) Preparation.-In the absence of statement by the author, it may be said that the brain was probably removed in the usual way, and the cerebellum tilted cephalad so as to expose its caudal aspect and the dorsum of the oblongata. The left tonsilla was then cut out, exposing on that side the parts marked I, IX, and a continuation of the post- cerebellar artery. I, metatela (welwm niedullare posterius), its lateral portion ; II, lateral recess of the metepictule (fourth ventricle) opened by the re- moval of part of the metatela ; III, flocculus ; IV, epiplexus (plea-.us choroideus lateralis); see Vol. VIII., Fig. 4702; VII, VIII, IX, cranial nerve-roots. Change/t.-The boundary line of the tonsilla has been made more distinct than in the original. In the upper part has been introduced a line to represent approximately the line of attachment of the arach- noid, constituting the dorsal boundary of the postcisterna. (See Fig. 420.) Defects.-The margins of the metapore are too sharply defined ; this is, perhaps, unavoidable when the parts are upon so small a scale; it cannot be said to bear either way upon the question of the naturalness of the orifice, for the effect of tearing a tough membrane like the me- tatela would be to leave ragged edges. The relations of the plexuses and accompanying strip of metatela are inadequately indicated, and the writer regrets his present inability to elucidate them. The post- cerebellar arteries are represented as if distributed only between the oblongata and cerebellum, and between the lobes of the latter. (Com- pare Fig. 420.) will maintain its normal existence in the human adult until there are produced several otherwise normal brains presenting a continuous metaccelian roof. § 44. Points Illustrated bg Fig. 423.-A. The admis- sion of the normal existence of the metapore in the adult by so expert an anatomist as Henle. B. The attachment of an extension of the metatela 615 Meninges. Meningitis. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) condition.* The cerebrum was removed without disturb- ing the cerebellum. Air was blown gently at the aque- ,duct ; the stream was immediately felt escaping at the foramen magnum. A blue liquid allowed to run into the aqueduct from a small glass syringe, with a minimum of pressure, also escaped at the foramen. On removing the tentorium there was recognized a small but distinct postcisterna (cisterna magna), full of the liquid. On carefully lifting the cerebellum there was found to be a metapore of the first kind. This observation has been confirmed upon two other Old World monkeys, f §54. What is the Use of the Metapore ?-Those who admit its existence have generally supposed that, during the vascular congestion attendant upon cerebration, the undue compression of the brain within its unyielding case is prevented by the transfer of the coeliolymph, first into the postcisterna, and then into the spinal subarach- noid spaces. But while the non-osseous portions of the spinal canal might yield to an ental pressure, is there any evidence of the distensibility of the myelic theca ? And would not any pressure adequate either to distend it or to com- press the liquid, injure the myel itself or the brain, or rupture the arachnoid bounding the postcisterna ? § 55. Are there other Natural Communications between the Encephalic Cavities and the Arachnoid Space?-Ac- cording to Quain (iii., 126, 188), Merkel and Mierze- jewski have described an actual cleft in the pia along the medicornu. But the writer is not able to learn that these observations have been confirmed by others, or that any photographs or figures have been published. For the present, therefore, in view of the negative testimony of other anatomists, and the results of his own repeated dissections and experiments, he is compelled to regard such clefts, when found, as artifacts, comparable with the orifices near the porta in an alinjected brain (Vol. VIII., Fig. 4742). § 56. More generally admitted is the existence of nat- ural orifices at the tips of the lateral recesses of the fourth ventricle. These recesses, parepicoeles, are shown more or less imperfectly in Vol. VIII., Figs. 4702, 4703, 4704, 4714, 4720, 2, and in this volume Figs. 58 and 423. From Fig. 4702 it will be seen that, in the embryo, the extremities of these recesses are closed. The pre- sumption is, therefore, that they remain closed in the adult. It is true that they are usually-perhaps always -found open in brains removed and examined in the or- dinary ways ; furthermore, Hess has given (1885) a rep- resentation (Taf. xxix., Fig. 10), apparently faithful, of what seems to be the natural condition of the parts. Nevertheless, so great is the probability of artificial rupt- ure of the pia by reason of its adhesion to the nerve- roots (a probability far greater than with the compara- tively protected metatela), that the writer feels compelled to withhold his recognition of the orifices until the pub- lication of more dtetailed descriptions and of figures based upon photographs. § 57. Is there Direct Communication of the Subarach- noid Spaces with the Intrarachnoid (or Subdural) Space ? -Whatever view they adopt regarding the constitution of the arachnoid as a whole, most writers agree that the arachnoid covering the brain and myel is continuous, ex- cepting for the capillary spaces about the nerve-roots re- ferred to in § 27. Hence, while the coeliolymph may pass to and fro between the true encephalic cavities and the postcisterna through the metapore, and may thus en- ter the other cisternas (§ 31) and the spinal subarachnoid space, it is nevertheless confined thereto. But Dr. Langdon (1891) holds that " at the base of the cranium there are two points where the visceral [ental] arachnoid is deficient, one on cither side, in the ' bridge ' of arachnoid which stretches across from the cerebellar lobes to the under [ventral] surface of the oblongata. These foramina measure about half an inch (12 mm.) in longitudinal diameter by one-fourth inch (6 mm.) trans- versely, and are crossed by three or four fibrous bands, the attachment of which to the edges of the openings produces a multiple crescentic appearance of their mar- gins, which suggests the name, ' lunulate foramina.' " It will be noted that the location of these alleged lunu- late foramina in the arachnoid corresponds with that of the ventral ends of the lateral recesses. Hence, on the one hand, if both are natural, the transfer of the coelio- lymph from the true encephalic cavities to the arachnoid space is provided for ; on the other, the relation of the nerve-roots to both the pia and the arachnoid renders both liable to rupture during extraction or manipulation of the brain. Hess (op. cit., Fig. 10, ar.) implies that the arachnoid was cut and reflected at this point. Bibliography. Bichat, X. (1802) : A Treatise on Membranes in General, etc. (1SG2). Translated by J. G. Coffin. Boston, 1813. Browning, W. (1889) : Articles, Vessels of the Brain; Pacchionian Bodies, Reference Handbook of the Medical Sciences, VIII., 231-244, 194-195. Gage, S. H. (1889) : Article, Lymphatic System, Reference Hand- book of the Medical Sciences, VIII., 387-419. Gegenbaur, C. (1888) : Lehrbuch der Anatomie des Menschen. Third edition. O., pp. 1057, 619 fig. Leipzig, 1888. Henle, F. G. J. (1873) : Handbuch der Anatomie des Menschen. O., 3 vols. 1873. Hess, C. (1885) : Das Foramen Magendii und die Oeffnungen an den Re- cessus laterales des iv. Ventrikels, Morphol. Jahrbuch, x., 578-500, 1 plate; 1884-5. Key u. Retzius (1875) : Studien in der Anatomie des Nervensystems. F., 2 vols., pp. 44S, 75 plates. Stockholm, 1875, 1876. KOlliker, A. (1885): Grundriss der Entwickelungsgeschichte. 0.1885. Langdon, F. W. (1891) : The Arachnoid of the Brain (read before the Association of American Anatomists, Decemlier 29, 1890), New York Medical Record. August 15, 1891, 177-178, 2 figs. Luschka, H. (1885) : Die Adergeflechte des menschlichen Gehirnes. Q., pp. 174, 4 plates. Berlin, 1855. Magendie, Francois (1827): Memoire sur un liquide qui se trouve dans le crine et le canal vertebral de 1'homme et des anlmaux mammiferes, Journal de la Physiologic Experimentale, 1827, pp. 1, 17. 66. Minot, C. S. (1892) : Human Embryology. Roy. o., pp. 815, 463 fig- ures. New York, 1892. Paulet, V. (1873): Liquide oephalo-rachidien. Diet. EncycL des Sciences Medicales. Paris. 1873, xiv., pp. 46-65. Quain, J. (Schafer, E. A.. & Thane, G. D., Editors) (1893): Elements of Anatomy. Tenth ed., in three volumes. O. London, 1890-1893. Reichert, C. B. (1861) : Der Bau des menschlichen Gehirns. O. 1861. Sappey, M.P. C. (1879): Traite d'Anatomie Descriptive. O., 4 vols. 1879. Schwalbe. G. (1881) : Lehrbuch der Neurologie : zugleich des zweiten Bandes, zweite Abtheilung, von Hoffmann's "Lehrbuch der Anato- mie." O. 1881. See, Marc (1878) : Snr la Communication des cavites ventriculaires de 1'Encephale avec les espaces sous-arachnoidiens, Recur mensuelle de Merit cin et Chirurgie, Paris, 1878, ii., p. 424 et seq. ; 1879, iii., p. 295 et seq. Spitzka, E. C. (1889) : Article. Spinal Cord, Reference Handbook of the Medical Sciences, VIII., 474-484. Swedenborg, Emanuel (1887): The Brain, Considered Anatomically, Physiologically, and Philosophically. Edited, translated (from the Latin), and annotated by R. L. Tafel. O., two vols., pp. xxxviii. and 794, xvi. and 645. London, 1882, 1887. [This is one of Swedenborg's scientific treatises, written between 1741 and 1744, before his theologi- cal writings were begun. There are numerous quotations, and the editor has added a very complete modern bibliography of the menin- ges and cerebro-spinal liquid.] Tuke, J. B. (1882): On the Anatomy of the Pia, Edinburgh Medical Journal, xxvii., 1,068, et seq., June, 1882. Walker, C. H. (1890) : The Metapore or Foramen of Magendie. A thesis [unpublished] on Anatomy for the degree of Ph.B. in Cornell Univer- sity, June, 1890. Westbrook, B. F. (1880) : Some Points in the Anatomy of the Ence- phalon, Annals of the Anatomical and Surgical Society, ii., 337, 354, September. 1880. Wilder, B. G. (1S86): Notes on the Foramina of Magendie in Man and the Cat, Journal of Nervous and Mental Disease, xiii., April and May, 1886, 2 pages. Burt G. Wilder. * This is No. 2977 of the University Museum ; the chimpanzee above mentioned is No. 265; it also was sent by Superintendent Brown; the preparation of the brain by continuous arterial alinjection is briefly de- scribed in the Proceedings of the Amer. Assoc. Ado. Science, 1885, p. 527. + Through the courtesy of Dr. W. A. Conklin, formerly Superintend- ent of the Central Park Menagerie, the writer has been enabled to exam- ine the brain of an adult Orang, No. 3082 of the Museum of Cornell Uni- versity. All precautions against artificial rupture were taken. Air passed readily from the mesoccele into a large and distinct postcisterna through several orifices in the metatela: these orifices and the postcis- terna were photographed May 24, 1893 ; Nos. 657-660. MENINGITIS. Etiology and Pathology. - The cause of cerebro-spinal meningitis is nearly absolutely es- tablished. Bonome, of Padua, declares that the diplococcus of pneumonia may now be regarded as the typical cause of epidemic cerebro-spinal meningitis, but as the cause of exceptional cases there are found (a) another diplococcus, (b) the streptococcus pyogenes, (c) a short, thick bacil- lus like the typhoid bacillus (Neumann and Schafer), 616 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Meninges. Meningitis. and (d) an encapsulated bacterium like the pneumo- bacillus of Friedlander (Netter). Bonome discovered a sixth micro-organism in an epi- demic near Padua. The disease developed itself inde- pendently of any pneumonia and with quite peculiar symptoms: rapid, almost simultaneous attack of many and especially of robust individuals with chill, pains in the joints and along the spinal column, uncontrollable vomiting, fever up to 43° C., violent trismus, opisthotonus, fixation of the pupils, etc. Death, w'hich was the result in seven of sixteen cases, often occurred within ten hours. Section showed abundant exudation, and in one case pus in the vicinity of the cerebellum ; cloudy fluid, with pus and flakes of fibrine in the lateral ventricles ; numer- ous ecchymoses of the pia, and haemorrhage into the ven- tricles twice ; haemorrhages under the peri- and endocar- dium. The lungs and pleura were always free from fibrinous inflammation ; but there was haemorrhagic ex- udation in the parenchyma of the lungs, and in a few cases in this exudation, as well as in that of the menin- ges, Bonome found constantly large round or oval im- mobile micrococci isolated or united in chains. Huguenin makes the following divisions in explaining the origin of meningitis in general : 1. Hematogenous Meningitis.-The micro-organisms' reach the pia through the arterial blood-supply. These are the cases of meningitis which occur after or in the course of ulcerative endocarditis, typhoid fever, cholera, pneumonia, typhus, recurrent fever, variola, scarlatina, measles ; traumatic and puerperal sepsis; finally, cerebro- spinal meningitis. In most of these diseases it is a case of infection of the brain with streptococci. The strep- tococcus meningitis certainly occurs after ulcerative en- docarditis, typhoid fever, variola, scarlatina (in both the last cases usually from the ear), measles, traumatic and puerperal sepsis. Of obscure origin are the cases which develop in the course of acute articular rheumatism. In this connection it must be remembered that hyperpyre- sis is often mistaken for meningitis. In the pneumonia meningitis the pneumococcus of Fraenkel has been un- mistakably demonstrated. The bacteria of epidemic cerebro-spinal meningitis have not yet been isolated with certainty. Fraenkel's pneumococcus has often been found. Weichselbaum has described also a bacillus in- tra-cellularis meningitidis. 2. Meningitis from the Lymph-Vessels.-These cases are mostly infections by streptococci in connection with peripheric suppuration about the skull ; caries of the temporal bone, of the ethmoid, bone tuberculosis, bone syphilis, traumatic osteitis of the skull. Huguenin says the subdural space is a protection ; but a direct bridge through this space is formed by the pia-sheaths of the nerves of exit, the pia-sheaths of the vessels passing downward, especially of the jugular and carotis and the Pacchionian bodies. The pia may be affected only directly. Suppurations which reach the brain in other ways are confined to the dura. 3. Meningitis from the Veins.-The cause is here mostly a sinus thrombosis from penetration of the pia by micro- organisms through the Pacchionian granulations, as from caries of bones and diseases of the external skin, and of the subcutaneous connective tissue, erysipelas, furuncu- losis, and the like. It is not yet definitely settled that syphilis and tuberculosis of the bone may excite a men- ingitis through the veins, but the virus of an erysipela- tous meningitis certainly finds its way through the orbits and the sinus cavernosus. 4. Meningitis from Brain Tumor.-Bare cases may thus arise from a central necrotic tumor undergoing softening. 5. Meningitis from the Spinal Column.-Huguenin re- ports a case of streptococcus meningitis from a gangre- nous bed-sore, which had broken inward in the course of transverse myelitis. Cases of gonorrhoeal meningitis have been reported by Hayem and Parmentier. Gull reported two autopsies, one showing softening of the cord, the other meningitis. Adenot distinguishes three varieties of parasitic men- ingitis as produced respectively by micrococci, bacilli, and mixed forms. The first may be divided into the forms produced by the micrococci of pneumonia, or the micrococci of Weichselbaum, and the streptococcus. By the term pneumococcus is understood the diplococcus of Fraenkel. What role the pneumococcus of Friedlander plays in meningitis is questionable. Concerning the ba- cillar meningitis, forms have been described by Neu- mann, Schafer, Adenot, and others, resembling the ty- phoid bacillus of Eberth, but not identical with it. Con- cerning the mixed forms, Monti produced meningitis in one case by injecting the coccus of Fraenkel into the dura, and afterward the streptococcus into the blood. The cause of epidemic cerebro-spinal meningitis can- not be satisfactorily fixed as yet. Boulay and Courtois-Suffit report the case of an habitual drinker, aged forty-four, whodied after three days' illness, and upon post-mortem there were found suppurative men- ingitis and peritonitis, while the other organs showed no change. The authors found in the suppurative exudations capsule cocci, and besides these, in the exudation of the peritoneum, other bacteria. A mouse inoculated with the pus of the brain membranes died in twenty-four hours. The spleen w'as markedly swollen, and " charac- teristic pneumococci " were found in the blood. There was, therefore, in this case, a remarkable extra-pulmo- nary localization of the pneumococcus, produced per- haps by the chronic alcoholism. The exudation was green, thick, and plastic, characteristics which enabled the author to predict the presence of the diplococcus pneumoniae. In the ensuing, discussion, Sevestre declared that he had encountered a case of peritonitis in a young girl re- cently where the exudation was accumulated in the left iliac fossa. In pus removed by puncture Netter demon- strated the pneumococcus. Netter also reported a case of meningitis and peritonitis in a small child where he found pneumococci in the blood, and supported the dec- laration of Debove that he was able to declare the exist- ence of the diplococcus pneumoniae in extra-pulmonary localizations from the macroscopic condition of the exudation, a declaration which had been advocated in former statements by Netter. But the diagnosis must not rest upon these conditions. It may be determined only by bacteriological examination. Gabbi and Puritz declare that the occurrence of a men- ingitis or endocarditis, either or both, in the course of a croupous pneumonia, or during the period of con- valescence, is, if not a frequent, at least an established sequence, and either may properly be regarded as a com- plication of this disease. Weichselbaum, as early as 1884, declared that the micro-organisms of croupous pneumonia might be the cause of meningitis, and Foa and Bordoni-Uffreduzzi produced meningitis by the inoculation of animals with the pneumonic diplococcus. The same results were ob- tained by Fraenkel and later by Netter. Lancereaux and Besan^on were able to demonstrate Fraenkel's capsule microbe in many cases of endo- carditis. A review of the later works of Weichselbaum, Vinet, and others, shows with certainty that the above-men- tioned micro-organisms may produce an acute inflam- mation of the meninges or of the endocardium. Foa finds an organism that partakes partly of the char- acter of the meningococcus and partly of that of the pneu- mococcus. If the latter is cultivated anaerobically it takes on the properties of the meningococcus in twrenty- four hours. The meningococcus can be temporarily transformed into the pneumococcus, if it is inoculated at the same time with the staphylococcus pyogenes aureus. Klippel reports a case of infection by micro-organisms in the course of mental disease. The patient, a fifty-year- old gardener, had suffered for ten years with dementia and slight paresis of the left side of the body. He was seized with sudden fever, extensive muscular rigidity and convulsions, and died comatose in three days. The most careful investigation failed to disclose any lacera- tion or break of the surface, which could have furnished an avenue for outside infection. The post-mortem re- vealed an extensive purulent meningitis, extending from 617 meningitis. Mercury, REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. a centre of softening, which had been regarded as the cause of the dementia. Microscopic examination of the pus showed the pneumococcus. Such secondary infec- tions in the course of insanity occur frequently. Klippel claims that the pathogenic micro-organisms circulating in the blood find in the diseased centre a locus minoris resistentia?. The differential diagnosis between simple and tuber- cular meningitis may be established by the use of tuber- culin, though the procedure is not wholly without danger in the tuberculous form. In pseudo-meningitis (Boulay), aside from partial pa- ralysis, all the symptoms of meningitis may be present, and the case may look very doubtful until unmistakable hysterical symptoms develop ; or recovery occurs sud- denly, sometimes after a convulsion. Treatment.-Dauchez in the case of a child, aged four, was able to relieve excruciating headache at night only by narcotic doses of morphine and chloral, but succeeded during the day with antipyrin, in small doses-.02, .04, every hour for four doses. The distressing outcry ceased, though the child gave vent to sighs from time to time. Essex-Wynter was able to give some relief in four cases of tubercular meningitis by puncture of the verte- bral canal, and discharge of cerebro-spinal fluid. The breathing improved ; sometimes coma was relieved. Ir- responsive pupils regained the reflex, but all improve- ment was only temporary. Opium remains the anchor in the treatment of menin- gitis. Dennison cured a chronic case with tuberculin. Pachymeningitis, External and Internal.-As illustrative of the rarity of the disease, Northrup declares that he encountered internal haemorrhagic pachymeningi- tis only four times in one thousand five hundred autop- sies. In three cases, severe and prolonged convulsions finally terminated in death. In the fourth case there was no symptom except restlessness and slight rigidity. The patient died of acute enteritis. There was no paralysis in any case. Bailey reported a case in a man, aged seventy-two, a subject of senile melancholia; death from convulsions. Autopsy disclosed encapsulated haematoma under the dura of the right parietal bone. The haematoma was composed of coagula of different ages, and there was a recent rupture in the arachnoid cavity. Ruhemann found in percussing the skull in a great num- ber of patients, that sensitive surfaces could be detected only in chronic pachymeningitis, and then with great regularity. In genuine epilepsy the remarkable observa- tion was made that in twenty of twenty-nine cases a cir- cumscribed portion of the temporal bone was sensitive. Adamkiewicz emphasizes the fact that in spinal pa- chymeningitis it is the extension of the inflammation rather than the pressure of the connective tissue which damages the nerves and cord. Hoffmann remarks that, notwithstanding the fact that the intra-cranial diseases as sequels of affections of the ear have long since received full consideration, purulent pachymeningitis externa, the most frequent form of intra-cranial inflammation in consequence of ear disease, still receives very little study. Most of the text- books do noteven consider an isolated inflammation of the dura. Hoffmann collected from literature one hundred and two cases in which the autopsy, with certainty, con- firmed participation of the dura. From his own and other studies, the author recognizes (1), a form in which pus oc- curs as a deposit on the outside of' the dura, and (2), a form in which it shows itself as an extra-dural abscess. The following are the conclusions : Purulent external pachymeningitis is the most frequent of the intra-cranial diseases after inflammations in the middle ear, but on ac- count of its uncertain symptomatology it is recognized in life in only a few cases. It is the most frequent cause of fatal intra-cranial diseases-meningitis, sinus phlebitis, and brain abscess. These consequences are favored by the long duration of pachymeningitis and retention of its pus. So soon as the bones become diseased in consequence of (SUPPLEMENT.) affection of the middle ear, suspicion should be excited of a complication with pachymeningitis. Treatment must be operative. It consists in trephin- ing the mastoid process and exposure of the inflamed, dura. James T. Whittaker. MENTHOL. The decided antiseptic qualities, and the safety with which it maybe administered, have led to the internal use of menthol in a number of diseases and con- ditions in which an antiseptic is indicated. In pulmo- nary and laryngeal phthisis it has been recommended to combine its internal use with inhalations and local appli- cation to the diseased parts when within reach. It is thought to give rise to a general amelioration of the symptoms, promoting expectoration and reducing the amount of the sputa, and lessening the night-sweats and fever. It does not irritate the stomach or kidneys, does not cause haemoptysis, or produce any bad effects. For internal use from fifteen to twenty grains are given two or three times, and increased to five or six times, a day. It has also been used in the form of hypodermic injections, when mixed with vaseline in the proportion of ten parts to one hundred. For laryngeal phthisis it is advised to begin with a ten per cent, solution and grad- ually increase the strength until a fifty per cent, solution can be applied ; if too strong a solution be used at first it produces irritation of the parts. Its use is followed by a relief from pain and a reduction of the local inflamma- tion and infiltration : a healing of the superficial ulcera- tion follows, but it does not seem able to heal the deeper ulcers. The intra-tracheal use of menthol has been adopted by Dr. Brookhouse (British Medical As- soc., 1892)-one drachm of a twelve per cent, solution in pure olive oil is introduced into the trachea twice daily. This must be effected with the aid of the laryngoscope and syringe, the curved tube of the latter being intro- duced about half an inch below the rima glottidis. This method does not cause any pain or distress if carefully applied. The inhalation of the drug may be easily ob- tained by placing the menthol in a bottle with two glass tubes. As it volatilizes at 113° F., by placing the bottle in a dish of hot water, a copious supply of fumes is produced. The patient may take five or six inspirations several times a day, beginning slowly, as too great quantities might provoke irritation and choking. Men- thol has also been employed in asthma and chronic bronchitis and laryngitis. In diphtheria it is advised as a local application in the form of a powder, one part be- ing well mixed with ten or twenty of sugar. The pow- der is applied with a camel-hair brush, the membrane being removed as fully as possible. The application should be repeated twice or three times a day. It acts as a constant disinfectant, destroying the specific poison, and on the second or third day the membrane disappears, leaving a clean and easily healing ulcer. Menthol has been found to have an anti-emetic action, and has proved of great service in all forms of vomiting, particularly when pregnancy is the.cause of this dis- tressing symptom. This effect is supposed to arise from a purely local stimulant action of the drug. For this purpose it is best administered at the commencement of nausea, before the vomiting occurs; a suitable wTay of giving it in this trouble is to prepare a solution in oil of twenty per cent, and place ten drops on sugar, and form it into a mass which is readily taken and swallowed by the aid of a mouthful of water. Another preparation is to mix menthol, one part; spirits of wine, twenty parts ; simple syrup, thirty parts. One teaspoonful every hour until nausea is relieved. The following combination also forms a permanent mixture : Menthol, two drachms ; alcohol, one ounce ; glycerine, one ounce ; syrup, one ounce. It may also be given in the form of pills : Menthol, one drachm ; pow- dered acacia and sugar, of each half a drachm ; to be made into forty pills. Menthol continues to be of service as a local application in neuralgia, sciatica, pruritus, and other painful affec- tions, and in various parasitic diseases. Its local use has been facilitated since it was discovered that when mixed 618 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Meningitis.. Mercury, with certain other analgesics it assumes a fluid form. When triturated in the following proportions, colorless, trans- parent oily fluids are produced, which may be used for the purpose of inhaling or as local anaesthetics : Menthol in equal parts with thymol, absolute phenol or chloral ; menthol three parts, camphor two parts ; menthol two parts, butyl-chloral-hydrate one part; and menthol two parts, with one each of carbolic acid and butyl-chloral- hydrate. Beaumont Small. MERCURY (Hydrargyrum, U. S. Ph.). Introduc- tion.-In taking up the study of mercury after a lapse of six or seven years it must be borne in mind that material changes have taken place within that period, although it is doubtful if salts and preparations of the metal are any more highly prized by physicians and surgeons now than at any time during the past decade. That mercurials possess a wide range of application cannot be denied, but aftei» a careful and comprehensive survey of the kaleido- scopic changes that have occurred in the minds of intelli- gent practitioners within a quarter of a century, there is no doubt but that their medicinal properties have been greatly overrated, and at the same time the deleterious action upon the economy largely underestimated. Judg- ing by the character of reports appearing from time to time in current medical literature, it is evident that mer- curials are now employed with a nicer discrimination, with more intelligence looking to the definite effects which are likely to follow, and more with a view to their con- servative influences than ever before. However, this happy condition of affairs has not been reached through careful and deliberate investigation of the clinical prop- erties of the drug, but, on the contrary, by a series of most reckless and flagrant abuses-a sad commentary when considered in connection with the coincident advance- ment in other sciences. Through a strange concatenation of circumstances in teaching and practice-due largely to the fact that mer- cury was supposed to possess a so-called alterative effect upon the organism-physicians appeared to have lost sight of the oft-repeated caution that it was a substance foreign to the human economy, and an acrid, irritant poison. Its properties have been, in many instances, esti- mated from the clinical point of view, by considering the temporary or immediate benefits from its use rather than from the scientific standpoint, which would bring into prominence the ultimate disorders following its injudi- cious or long continued employment. In studying these properties, therefore, in the light afforded by modern in- vestigation, it will be necessary to take into account these facts, viz.: That mercury is a substance foreign to the organism, and an irritant poison producing both imme- diate and remote changes in structure, whether used in- ternally, locally, or hypodermatically. And in view of the additional fact that the so-called "alterative" action has come to be regarded as without scientific meaning, and lacking in definiteness, the present seems an oppor- tune moment for advancing certain evidences that prom- ise to offer an explanation of its action, an explanation that shall be more in keeping with the demands of modern science, while at the same time strictly within the range of practical medicine. Scientific facts, supported by clinical facts, will go very far with intelligent practi- tioners in elucidating the mysteries which have so long surrounded and obscured the therapeutics of.this impor- tant remedial agent. In order to accomplish this laudable purpose it will be necessary to consider the nature of its cumulative action, and the causes at work which, apparently, prevent or modify this action in children. It will also be desirable in this connection to study immediate and remote effects, the primary and secondary actions of both soluble and insoluble salts and preparations, all of which can best be accomplished by a critical examination of its pharma- cology, which naturally includes its toxicology, physio- logical actions in medicinal doses, and mode of elimi- nation. This study should include, in short, a complete analysis of its general and specific influence upon meta- bolism, meaning by that its constitutional as well as specific action upon different organs and tissues, includ- ing in this category the entire nervous system. And, finally, having thoroughly digested and sifted all avail- able information upon these various topics, the conclud- ing section will be devoted to its therapeutic applications, the different diseases being grouped to facilitate study and reconcile the conflicting views hitherto held. As a preliminary to the present paper, it will be profit- able to consider briefly some of the more recent mercurial preparations, and to pass in review the antagonists and in- compatibles. In the original article by Professor Curtis (Reference Handbook of the Medical Sciences, Vol. IV., 1887, p. 737), the Pharmacopoeial preparations were so fully studied that it does not appear necessary at this time to attempt a remodelling of that section, al- though their properties will be referred to incidentally in connection with toxicology. For more detailed informa- tion covering the toxicology the reader is referred to the contribution of Professor Hills (loc. cit., p. 744), which is exceptionally full and complete. Mercury Compounds.-The following list includes the principal mercurial compounds * aside from the Phar- macopoeial products which have recently been brought to the attention of the profession. While some of them undoubtedly possess distinct therapeutic properties, the greater number are lacking sufficient clinical investi- gation to warrant their general use. Mercuric Benzoate, (C6H6COO)2Hg,H2O, occurs in the form of small colorless crystals, tasteless and free from odor ; readily soluble in alcohol and hot water, but sparingly soluble in cold water. This preparation has been used hypodermatically suspended in liquid paraffin (Stukowenko) for the treatment of syphilis, and also in combination with sodium chloride in watery solution (Cochery) for the same disease. Bose, one syringeful daily of a solution containing the following proportions of the different ingredients-3 to 1 to 400. Mercuric Carbolate or Phenylate, (C6H6O)2Hg, occurs in the form of colorless needles, soluble in hot alcohol (1 to 20), ether, or a mixture of alcohol and ether, and in glacial acetic acid ; insoluble in cold water or cold alcohol. Mercuric carbolate has been employed to a limited extent. (Schadeck) in the treatment of syphilis. Bose, for an adult, gr. f to 4, two or three times a day, and for chil- dren in proportion. Mercuric Formidate occurs as a solution, produced by the action of formamide upon mercuric oxide. It has the advantage of not coagulating albumin, is rapidly ab- sorbed, excretion taking place through the kidneys. Mercuric Bnido-succinate, [C2H4(CO)2N]2Hg, occurs in the form of a white, lustrous, crystalline powder ; soluble in twenty-five parts of water or three hundred parts of alcohol. The substance was first described in 1852 (Dessaignes), and in 1888 was recommended as an. antisyphilitic (von Mering, Vollert). Bose, subcutane- ously, gr. | in watery solution, with or without the addi- tion of cocaine. Mercury I'Alananate is a white, crystalline powder de- rived from lactic acid and proplieglycole ; soluble in three parts of cold water. It is prepared by dissolving the alananine in five times its weight of distilled ■water, and while boiling, small quantities of mercury binoxide are added so long as it dissolves. Bose, subcutaneously (de Luca) gr. to gr. J daily. It is said this treatment in syphilitic cases, continued for a period of forty-five days, has frequently proved sufficient. Mercury Naphthalate occurs in the form of a lemon- yellow, odorless powder, containing 30.8 per cent, of mercury, insoluble in water. It was first employed in the treatment of syphilis (Jaddasohn, Zeissing), but proved unsuitable owing to the violent pain produced. Bose, internally, one grain. Mercury Oleate, Hg(Ci6H33O2)2, a true chemical pro- duct containing 28.3 per cent, of mercuric oxide ; it is in the form of a brownish-yellow or yellowish-gray unc- * The author desires to acknowledge his indebtedness for much of the information on this topic to Helbing's Modern Materia Medico, 3d edi- tion, 1892. 619 Mercury. Mercury. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. tuous substance, having the odor of oleic acid ; soluble in benzene, but not in alcohol, and at ordinary tempera- tures is of the consistency of an ointment. It is best pre- pared by the double decomposition of sodium oleate tCastile soap) and mercuric nitrate, but the process is somewhat complicated. Oleate of mercury as now prepared is a stable product, and has been favorably received as an acceptable substi- tute for mercurial ointments, being a more cleanly appli- cation, does not become rancid, and, besides, is more rapidly absorbed. It is generally employed as an external application in the strength of live to ten per cent. Con- stitutional effects may be produced to a limited extent by the use of mercury oleate, and it may therefore be sub- stituted for internal medication when the condition of the stomach forbids the internal use of the mercurials, but its principal field has hitherto been confined to the treatment of diseases of the skin, specific and non-specific, including also parasitic affections. It appears to be es- pecially adapted to diseases of the skin which are char- acterized by an indolent condition of the structures, eczema, tumors, pigmentation, and all forms of indura- tion or thickening; it should not be applied to ulcera- tions where there is a solution of continuity. Mercuric, Oxycyanide, Hg3O(CN)2, has been employed to a limited extent (Boer) as an antiseptic, and is said to be superior to the sublimate in this respect, being less caustic, free from any coagulating action upon albu- min, and less harmful to instruments. The following points are advanced in its favor : 1, Precipitates albumin only slightly ; 2, less irritant than sublimate solutions ; 3, not so readily absorbed ; 4, antiseptic power in keep- ing soup six times stronger than sublimate; 5, more efficient as an antiseptic and safer in treating suppurating and mucous surfaces, owing to tolerance and feeble ab- sorption. Mercuric Peptone occurs in the form of a yellowish liquid, having a saline, feebly metallic taste, and slightly acid reaction. It was originally introduced for hypo- dermatic use, and is said to be mild and efficient, causing no pain or abscesses. Dose, one c.c., said to be the equivalent of gr. £ of the bichloride. (See Glutine-pep- tone Sublimate.) Glutine-peptone Sublimate occurs in the form of a white, lustrous, hygroscopic powder (prepared and on sale in the form of a one per cent, solution) containing twenty- five per cent, of mercuric chloride. It is prepared by the action of hydrochloric acid on gelatin-a double com- pound of glutine-peptone hydrochloride - with subli- mate. Dose, subcutaneously, one Pravaz syringeful (Hiitler), the equivalent of gr. | mercuric chloride. Mercuric Salicylate, C6HtOCO2Hg, is in the form of a fine, white powder, tasteless and odorless, and acid in reaction. It was employed as early as 1887 (Silva- Aranjo), and again more recently (Schadeck), as an inter- nal and external remedy in syphilis, and is said to be mild, yet energetic. It has also been employed by intra- muscular injection suspended in mucilage, and locally in the treatment of gonorrhoea in weak solution as an injection. Dose, gr. to |, in pill form. Mercury Sozoiodol, [C6H2I2(I2)(OH)SOs]2Hg, is in the form of a lemon-yellow powder ; moderately soluble in sodium chloride solution, but scarcely soluble in water (1 to 500). In strong solution this product is an irritant to the tissues, but its insolubility recommends it for hy- podermatic use in the treatment of syphilis. According to Schwimmer it is superior to all sozoiodol preparations in its curative value and certainty of effects. Dose, one grain, deposited in the gluteal region. Mercury Stearate, recently brought to the attention of the profession, is in the form of a white, unctuous pow- der, and is said to contain twenty per cent, of mercuric oxide-about the same as blue ointment. It differs from the oleate in being entirely free from oleic acid, and may be used for insufflation, or as a " dry ointment" in place of the usual greasy applications when the local action of mercury is desired. Mercury Tannate occurs in the form of brownish-green scales, tasteless and odorless ; insoluble in water and al- (SUPPLEMENT.) cohol, although when brought into contact with either tannin is given off. The theory of its action (Lustgarten) is based upon the assumption that metallic mercury is set free when exposed to the alkaline contents of the small intestine. Dose, one to two grains, an hour after eating. Mercuric Thymolate, (Ci0Hi,O)Hg-HgNOs, in the fresh state, is in the form of a colorless powder, tasteless and odorless ; after exposure it gives off a faint odor of thy- mol, with change of color to a reddish hue. Mercuric Thymolacetate, (CIOHIaOJIIg-HgCallsOa, is a substance similar to the foregoing, although the latter is that principally employed in syphilis (Koliert). It has been especially advocated also in the treatment of pulmonary tuberculosis (Trangen), both in the early stage and in those cases far advanced in the disease, the medi- cament being suspended in liquid paraffin. For syphilis it is given internally or hypodermatically in the manner stated. Dose, internally or subcutaneously, gr. to Mercury-zinc Cyanide, [Zn4Hg(CN)i0], occurs in the form of a white powder, which is said to consist of mer- curic cyanide (not to exceed thirty-six per cent.) whose particles are " occluded " from the action of water by the insoluble zinc cyanide (Dunstan) ; insoluble in water. Mercury-zinc cyanide is obtained by adding a soluble zinc salt to a solution of the cyanide of mercury and of potash. The substance was originally introduced by Sir Joseph Lister as an antiseptic and non-irritant dressing, and is now employed by a limited number of surgeons with most gratifying success. The strength of the so- lutions used for the held of operation is 1 to 2,000, and that for compresses is 1 to 500. Triturations of Mercury and its Salts have, within the past few years, come into very general use for internal administration, and their employment has been attended with such uniformly satisfactory results that it is but a question of time when this practice will be adopted in nearly all ordinary cases. The causes which have been instrumental in bringing about this change will be dis- cussed under the head of Antagonists and Incompatibles, q. v. Antagonists and Incompatibles.-When a lethal dose of corrosive sublimate has been taken into the stom- ach, albumin in some form-white of egg-should be administered and emesis secured as promptly as possible, before the resulting albuminate of mercury is redissolved by excess of albumen. Demulcent drinks are usually advocated, in the belief that they will protect the mucous membrane of the stomach from the irritant action of the poison ; but mucilaginous substances do more than this, inasmuch as they cling to, and hold in suspension, such foreign substances as mercury albuminate, the form in which mercury enters the circulation. Mercurial salts being proverbially uncertain in some respects-especially the bichloride-they should be given preferably in the form of triturations, although this does not necessarily apply to the insoluble salts like the biniodide when sus- pended in mixtures. But even the use of this salt, as in the "mixed treatment," is far more satisfactory in the form of triturations, since incompatibles are avoided, smaller dosage required, and the untoward effects, im- mediate and remote, reduced to a minimum. The facil- ity with which therapeutic effects may be secured by the exhibition of small doses of blue pill and calomel, pre- pared in this form, practically excludes the question of incompatibility. Both the soluble and insoluble prepa- rations in this form, alone or combined with other suita- ble medicants synergistic in character, may be exhibited in suitable doses under proper dietetic regulations with- out regard to the possible dangers arising from their ad- ministration in bulk. A note should be made to the effect that starchy foods delay or cause irregular absorption, while a nitrogenous diet with free ingestion of liquids heightens the activity of mercurials. Constipation, by interfering with elim- ination, may produce salivation, and under such condi- tions a dry diet, by lessening the urinary water, is not infrequently the exciting cause of occult renal disorders. Exposure to cold is also inimical to the therapeutic action of mercurials, while diaphoretics tend to promote con- 620 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Mercury. Mercury. stitutional effects-favorable when the dose is small, but unfavorable when toxic symptoms are imminent. Loose- ness of the bowels following the exhibition of mercury may be counteracted by the temporary administration of opium or some of its preparations (codeine sulphate), al- though it is better to avoid distinct physiological mani- festations by diminishing the dose, regulating the diet, and improving the hygienic environment. So-called idiosyncrasy, when mercurials are used in appropriate dosage, is generally and principally a merely accidental or coincident effect, due to physical (personal) conditions, habits as to diet, exposure, hygiene, and the like, since there is reason to believe that the condition of the physical system exercises a more decided influence in favoring this manifestation than does the nervous sys- tem. Indeed, it appears as if the effects upon the latter were indirect or secondary, although there doubtless are reflex effects resulting from molecular changes which are not altogether independent of the nervous system. The effect of mercury upon the system may be compared to the effect of adding coal to a furnace when combustion is actively going on ; the added fuel may cause a tempo- rary lull in the heat dissipation, but this is followed by increased combustion and augmented heat. In the case of the furnace it is the coal which is destroyed, while in the case of the human organism it is the tissues that are consumed, each dose of mercury beyond that requisite being attended with increased tissue-metamorphosis. Pharmacology.-In studying the Toxicology of mer- curials as a whole or specifically it is not necessary or advisable to recapitulate from text-books, nor sift from current literature the details concerning their peculiar actions in causing death or contributing toward the pro- duction of pathological changes in the organism. It will be sufficient for our purpose to pass in review the various Pharmacopoeial products, with the addition of some brief notes relative to their special properties and activities. The preparations of mercury proper include mercury with chalk, blue mass, blue ointment, mercurial plaster, and mercurial plaster with ammoniacum. None of these preparations possesses any marked poisonous properties, and they may be used with benefit in properly selected cases, provided the dose be small and the drug not too long continued. Moderate dosage, for therapeutic effects, may be stated as follows : Mercury, with chalk and blue pill, grain -Ar at hourly intervals until six to twelve doses are taken, or two to four doses of one grain at longer in- tervals. Synergists, such as podophyllin resin, aloin, ipecac, ox-gall, salines, etc., will heighten the effect of small doses and lessen the dangers of toxic symptoms. Liberal draughts of hot water may also be of service in promoting diffusion and elimination, and there may be a demand for the exhibition of minimum doses of opium, pilocarpine, atropine, strychnine, etc., to meet special indications, and, as a rule, adjuvants are most serviceable when given separately, although administered at the same time. Preparations of the chlorides include corrosive sublimate (bichloride), calomel (sub-chloride), ammoniated mer- cury (not used internally), and ointment of ammoniated mercury. Of the two preparations belonging to this class which are used internally the bichloride is by far the most actively toxic, frequent reports having appeared showing unmistakably that it produces both immediate and remote pathological changes sufficiently characteristic of its poi- sonous action to be recognized both macroscopically and microscopically. Calomel, on the contrary, owing to its insolubility, is comparatively mild as a poison, so far as its immediate effects can be observed, although its re- mote action, when long continued or frequently repeated in substantial dosage, is antagonistic to a healthy state of nutrition, as will be shown presently. The dose of these two preparations, as usually recom- mended, is entirely too large-if we desire to avoid the bad effects. Both are popular remedies in the treatment of diseases of children, who seem to be less susceptible than adults to the toxic action of the drug ; and there are grounds for suspicion that the practice referred to is an important factor in prolonging convalescence, if not a fruitful source of factitious disease. In ordinary acute cases, where indicated, grain of corrosive sub- limate, or grain of calomel, given at hourly inter- vals, will fulfil every therapeutic indication, while the dangers incident to the use of large or toxic doses are avoided. The advice given in the preceding section con- cerning synergists and adjuvants applies with equal force to the administration of the chlorides. The antiseptic applications of corrosive sublimate will be considered under the head of Surgical Practice, q. v. Preparations of the oxide include yellow oxide (oxidum flavum), used principally in the preparation of yellow ointment and mercury oleate, red oxide, and ointment of the same. The preparations belonging to this class are decidely irritating, and are seldom used internally. The oleate (q. v.) is the only one which has attained any con- siderable degree of popularity. Preparations of the iodide include the red iodide (bin- iodide), Donovan's solution (solution of iodide of arsenic and mercury), and the green iodide (protoiodide). Both the biniodide and green iodide have shown distinct ther- apeutic properties in the treatment of subacute and chronic diseases, specific and non-specific, their virtues being due largely to their practical insolubility and the fact that doses sufficient to produce physiological or toxic effects are extremely irritating to the gastro-intes- tinal tract. The incorporation of iodine with the mer- cury likewise exercises an important function, since the remedies, being but slowly diffused throughout the dif- ferent structures, produce a more or less constant action upon the protoplasmic cells, by which metabolic changes are stimulated. The usual dose of the biniodide, prepared by thorough trituration, for adults in the case of gastro-intestinal, hepatic, and syphilitic affections, need not exceed grain T()t three or four times a day. The dose of the pro- toiodide should be about double this amount, grain fg. In the treatment of acute diseases of children, pecu- liar to the summer season, with evidences of hepatic in- volvement, vomiting, diarrhoea, dysentery, pain, tenes- mus, etc., the biniodide, in doses of grain tott hourly, is a superior remedy. It is quite as prompt in its action as the bichloride, and the benefits appear to be of a more permanent character, probably because of its insol- ubility as previously stated. It is also of service in the treatment of all throat affections, owing to its local anti- septic properties and its antiseptic and stimulating action upon the stomach and liver respectively. Of the acid combinations it is only necessary to say that they are actively poisonous. The nitrate is employed as a caustic and in the preparation of citrine ointment, the subsulphate (yellow) as an emetic. Mercuric sulphide is employed for fumigation, now rarely used, and the cyanide is actively poisonous. The latter in combination with zinc has recently come into use as an efficient anti- septic. The foregoing summary is put in evidence to show that mercurials, in whatever form presented, are all either immediate or remote poisons to the organism, although this declaration must have slight effect since all practitioners readily admit the fact. It becomes necessary, hdwever, to reconcile its therapeutic value, long estab- lished, with its well-known properties as a protoplasmic poison, inimical to all animal and vegetable life. And this brings us to the consideration of questions that have long vexed the minds of physiologists and clinicians alike, questions of weighty significance, pregnant with important but unsolved truths that have swayed the practice of the healing art generation after generation from the dawn of history down to the present time. Turning to the text books of the day we find mercury classed as a tonic, purgative, alterative, antiphlogistic, antiseptic, and sorbefacient, and, to a limited extent, cholagogue ; but to the scientific mind this information conveys nothing definite, exact, or positive, as it has never been demonstrated either definitely, exactly, or pos- itively how these manifestations were brought about. Of course we know that a peculiar fetor of the breath and 621 JTIerciiry. JIercury. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) metallic taste in the mouth are early indications that " the ■drug is affecting the system," but evidently this is a loose way of calculating. It must be apparent that these early indications are, in fact, secondary or remote effects, and that the immediate or direct effects have been overlooked. For example, we know that corrosive sublimate taken in lethal dose causes vomiting, purging, and tenesmus, per- haps suppression of urine, and that its effects are espe- cially marked upon the lower bowel, manifested at times by bloody stools, but apparently there is a long distance between this morbid complexus and salivation. Twenty, forty, or sixty grains of calomel will produce decided re- flex nervous symptoms, but, on the other hand, medicinal doses, long continued, are almost certain to be followed by stomatitis. That stomatitis is a secondary effect is shown by the associated elevation of temperature. Experimental workers speak of the physiological action and effect, and clinicians talk about therapeutic action and just as though the two words, action and effect, were interchangeable or mutually convertible terms, when in fact there is a wide difference between them. What intelligent medical practitioners want to know is : How do mercurials act in order to produce the effects ob- served ? The latter-the effects-the merest tyro in therapeutics can comprehend, but it remains to give a sat- isfactory working explanation of the modus operandi by which these effects are produced. In short, is there any other possible translation of the metamorphoses produced by mercurials than that they possess " alterative '' prop- erties 'I In attempting to reply to these questions let us start by accepting as true the belief that the conservative pro- cesses of Nature tend toward the elimination of poisons and foreign substances. Now we know that certain channels are available for this purpose, viz., the liver, salivary glands, alimentary tract, skin, kidneys, and the pulmonary and bronchial mucous membrane. Mercury entering the blood-vascular system, either as an albu- minate or oxy-albuminate, is not carried direct to the organs or structures named, but indirectly through the lymph-vascular system. It is therefore brought into contact with the protoplasmic cells, upon whose integrity the vitality of the various organs and tissues depends, elimination being finally effected from the intercellular fluid through the epithelial cells. If we proceed, now, to consider the normal condition and functions of proto- plasm, recalling the well-known facts relative to its capacity for taking up and storing oxygen for its own proper work, its ability to produce ozone and thus stim- ulate katabolic processes, it will be apparent that when an organic substance foreign to the economy-a poison- is brought into contact with it, functional activity will be increased. Heightened functional activity usually means in such cases an increased discharge of carbonic acid and katabolic products, together with renewed activity in the tip-building process. This is substantially what has long been recognized as cellular activity, and working prin- cipally in the direction of retrograde metamorphoses, studying degenerative effects, it formed the basis of Vir- chow's celebrated treatise, " Cellular Pathology." When we turn our attention in the direction of reconstructive metamorphosis with the object of learning the peculiar influences- at work in connection with the exhibition of remedial agents, our line of investigation is practically in the opposite direction. In other words, our studies lie in the direction of cellular therapy rather than toward cellu- lar pathology. But the two currents of thought are so intimately blended and mutually interdependent-like the warp and woof-that it is almost impossible to make satisfactory progress unless we take both into account in our reckoning. Simply to know or understand what is covered by the term "alterative," however, is not suffi- cient ; we must have some definite, exact, and positive knowledge concerning the difficulties to be met and over- come in treating disease, and therefore, as a preliminary to the practical adaptation of cellular therapy, the stu- dent must be well-grounded in the principles underlying normal physiology and cellular pathology. And there are good and sufficient reasons for insisting upon this course, since the ultimate object of medical study is to restore impaired or suspended function, which can only be successfully accomplished by the re-estab- lishment of cellular activity. Thus the therapy best adapted to restore the functions of disordered cells is that which will prove most successful in removing dis- ease and its symptoms ; but care must be exercised in the exhibition of remedies in order to avoid what might be called " cumulative " effects, or the depression conse- quent upon over-stimulation. For instance, the early in- dications that mercurials are affecting the system are, in fact, evidences of toxic activity, evidence that there has been sufficient "action" upon the protoplasmic cells, their nutritive pabulum contained in the intercellular fluid, or their nerve-supply, to produce the effects ob- served, namely, fetor of the breath and metallic taste in the mouth. The proof is therefore conclusive that, while mercurials are protoplasmic poisons, it is to this property that they owe their therapeutic virtues as tonics, purga- tives, alteratives, antiphlogistics, antiseptics, sorbefa- cients, and, as will be shown presently, their value as cholagogues, and the term cellular therapy, therefore, appears to be well chosen. In the case of mercurials, for example, the therapeutic effect is a resultant, the two forces being the disease and the medicine, the conservative processes of cell-life being temporarily impaired or suspended. The depressing tendencies produced by disease, ptomaines, leucomaines, etc., are counteracted or overcome by the irritating, or, as it is usually called, stimulant action of the minute quan- tity of poison to which the protoplasmic cells are ex- posed. These effete products are discharged or burnt up by the oxygen or ozone of the protoplasmic cells, so that these latter are changed or " altered " in such manner that bet- ter prepares them for the performance of their normal functions, and to this circumstance may be due the word " alterative." Clothed in this new dress the term has a greater significance to the clinician, because it rests upon a foundation that is both scientific and practical. The usual study of physiological actions includes also the effect upon the blood. According to the experimental studies of Harley, mercuric chloride added to blood les- sens the evolution of carbonic acid, and, at the same time, increases the absorption of oxygen, evidence that it stimulates oxidation ; but, on the other hand, albu- minate of mercury added to blood in like manner grad- ually destroys the red blood-corpuscles, facts pointing to the necessity for exercising the greatest care in its ad- ministration. In comparing these results with the clin- ical evidence advanced by Keyes (American Journal of the Medical Sciences, January, 1876), showing that small doses of mercury (gr. | of the protoiodide t.i.d.) increase the number of red corpuscles in the absence of disease, it is easy to understand the causes which combine to pro- duce the apparently conflicting results. In truth, they do not conflict at all, but merely express scientific facts entirely independent of each other. An observation should be made here to the effect that the therapeutic results following the exhibition of mer- cury are not all direct, since the increased oxidation which it causes in the system means more active metab- olism, augmentation of the red blood-corpuscles, and im- proved primary assimilation. These are what might be termed consequential benefits; and in the light of these facts, and our knowledge that the inorganic substance is eliminated from the organism unchanged, it is not deemed necessary to combat the assumption that mer- cury must, in some occult manner, become an integral part either of the blood or tissues in order to effect re- constructive metamorphosis. Upon the muscular system mercury produces a some- what anomalous effect. For example, we might suppose that increased oxidation would be attended by augmented capacity for work ; but such is not the case, although mercury has no material influence upon muscular irrita- bility. And this explains in a measure why patients who have taken medicinal doses of the drug for a consider- able time finally begin to show evidences of cardiac weakness and require tonics. The respiratory muscles 622 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Mercury. Mercury. likewise show impairment of their capacity for work, so that in calculating the gains from stimulation of the in- ternal respiratory function, we must not overlook the fact that increased dosage or continued administration may produce symptoms which are but transitory, evanescent, or misleading. In addition to its action as a protoplasmic poison at the points of elimination by the renal structures, large doses have the effect of producing chronic interstitial nephritis by calcareous deposits in Henle's loops, which block up the tubules, and this in turn is followed by subacute in- flammation of the glomeruli and tubules with atrophy and cirrhosis (Brunton), being similar to the effects pro- duced by both lead and potassium chlorate. That mercury profoundly affects the nervous system is •confirmed by the remarkable manner in which persons in health are affected when exposed to its vapors. The irritability, melancholia, and in some instances furious mania, with other evidences of mercurialization that have been observed, afford abundant proof that either directly or indirectly it effects extraordinary changes in the centres of organic life that seriously interfere with the normal functions. In the case of leeches, for exam- ple, it acts chiefly upon the nervous system, and later upon the muscles. Although no evidence is forthcom- ing, there are strong probabilities that it affects in no small degree the molecular changes in serous membranes, and thus is added a new factor to its rapidly increasing list of physiological manifestations. The well-known eliminative functions of the glandular system naturally point to it as one of the principal chan- nels for the elimination of mercury, and this is confirmed by clinical observation ; but it possesses no property aside from its influence upon cellular activity that would entitle it to be classed as a specific glandular stimulant. It is therefore somewhat misleading to call mercury a spe- cific sialagogue, since we can trace the tissue-change to the effects of the remedy as a protoplasmic poison upon the cells concerned in elimination, and, fortunately for the scientific basis of therapeutics, the necessity for which this study is intended to develop, the foregoing admitted facts practically wreck the so-called "altera- tive" theory, viz., that " alteratives are remedies which improve the nutrition of the body without exerting any perceptible action on individual organs." In compliance with the request of the writer a discrim- inating study, scientific and practical, covering the physi- ological action of mercurials upon the liver and its func- tions, has been placed at his disposal for the present article by Dr. William II. Porter, of New York, as fol- lows : "The action of mercurials upon the hepatic function is exercised in three successive characteristically dis- tinctive stages, namely, as stimulants, as cholagogues, and as depressants. " As the mild chloride or calomel possesses all these qualities to a marked degree, it is perhaps the best exam- ple by which to elucidate the complete action of mercury upon the hepatic and digestive functions. The blue mass and the gray powder act in the same manner, but, if anything, are a little less active. The bichloride has a similar action, but its more irritating properties make it less valuable, or even useless, as a cathartic principle. Still, it can be used as a powerful hepatic stimulant, and as an adjunct to the cholagogue action of calomel. " The exact modus operandi by which mercury in any form produces the wonderful results upon the system that have been attributed to it for ages, has always been more or less in doubt, for the lack of a logical explana- tion ; yet the most sceptical, after watching the effects of a few doses of this drug upon the human system, can- not deny the power and utility of mercury. Taking the stand that the inorganic compounds are not destroyed within the animal organism, no time need be wasted in speculation regarding the decomposition of any of the mercurials into other compounds. How, then, shall the action of mercury and its compounds be explained ? Calomel, for instance, is almost insoluble ; consequently it in itself is comparatively non-irritating to the intestinal (SUPPLEMENT.) tract. At the same time it is known to be one of the most active cathartic compounds of mercury-two almost contradictory propositions. The cholagogue action of calomel cannot be explained by any direct irritating ac- tion which it can produce upon the alimentary tract, through the increased peristalsis, by reflex irritation causing an increased flow of bile. " The non-irritating character of calomel is just what gives it its chief power. Passing along down the ali- mentary tract without producing irritation, it is steadily absorbed into the entero-hepatic circulation and carried up to the liver. At this point of the animal economy the mercurial appears to act like a foreign body, and the he- patic cells, by their selective action, pick up the little particles of calomel from the blood, and eject them into the capillary bile-ducts. In accomplishing this task the hepatic cells are called upon to perform more work, and if the amount of calomel passed through the liver is small, its action is simply to stimulate the organ to a lit- tle greater activity. For a time the hepatic cells secrete a little larger quantity of bile, and such as has a little better quality. Up to this point the calomel has only been stimulating and physiological in its action. If now the calomel be administered in larger quantities-either by frequently repeated small doses or in one large dose- the eliminating action of the hepatic gland is greatly aug- mented. At the same time the protoplasmic elements which constitute the hepatic cells are stimulated, by the passage of this foreign body through their substance, to a more active production and elimination of the bile- acids. " When sufficient calomel has reached the liver to pro- duce this copious flow of bile-acids, the acids are dis- charged into the capillary bile-ducts more rapidly than they can react upon the alkaline phosphates or carbo- nates, and form the normal and neutral bile-salts. When this hypersecretion of the bile-acids is established, a cho- lagogue action is developed. This action, however, can only be temporary in character, because the protoplasmic vitality of the hepatic cells will, in a comparatively short time, be exhausted. After this excessive produc- tion of the bile-acids and their discharge together with the calomel, there is a period of protoplasmic exhaustion in which the bile-producing function of the liver is held in abeyance. " Viewed in this light calomel and its class of mercu- rials may be stimulating, cholagogue, and depressing in their action upon the functions of the hepatic gland-one condition following in quick succession after the other. The rapid intestinal peristalsis and frequent discharges from the bowel, however, are not the direct result of the mercurial action, but a secondary effect which has been brought on by the irritating properties of the bile-acids, so copiously discharged into the intestinal canal-as just shown. This fact is established by the lack of cathartic action by calomel in cases of occlusion of the common bile-duct; and furthermore, by the counter-test that where bile-acids are administered medicinally, a brisk, cathartic, and cholagogue-like action is at once estab- lished. " The hypersecretion of the bile-acids and its conse- quent effect upon the intestinal tract is not in any sense a physiological action, but is strictly a pathological pro- cess. But, by developing this abnormal condition in the functional activity of the hepatic gland, the liver-cells are stimulated to perform an abnormal amount of work, often vicarious in its nature, and by which the cells are empowered to expel many abnormal and by-products from the system-a task which, in their normal condi- tion, they are absolutely unable to perform. In this manner Nature rids herself of many foreign and offend- ing substances which, if allowed to remain and multiply within the system, would, in a short time, destroy the animal vitality, a result too often seen in cases imper- fectly treated. " The period of inaction which is imposed upon the hepatic cells as a sequel to this excessive action gives the protoplastic elements a chance to rest and to imbibe a more serviceable nutritive pabulum - thus augment- 623 Mercury. Mercury. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT ing their nutritive activity and enhancing their func- tional vitality. When the hepatic cells again resume their physiological work, they are in a condition of high nutritive tone, and consequently the secretory and excretory work of the liver is more perfectly effected. The intestinal and hepatic transmutation of the food- elements is more perfectly accomplished ; and, as a nat- ural sequence, all the nutritive processes of the body are intensified ; secretion and excretion in general are more perfectly performed, and the animal vitality is raised to a higher standard. If the system has been poisoned by any form of microbic or ptomainic toxine, or is the seat of any inflammatory action, toxic or otherwise, the or- ganism is, by the above-described processes, placed in the best possible condition to destroy the etiological factors and remove the resulting pathological processes, and thus restore everything to a normal condition. " By a somewhat similar physiological action the well- known antiphlogistic power of the mercurials can be ex- plained ; and following this method of action for the mercurials generally, ptyalism, and all that class of toxic symptoms produced by mercury and its compounds, can be rationally explained. The same reasoning also shows clearly that the size of the single doses has little, if any- thing, to do in determining the liability to mercurial sali- vation. If, from any cause, the hepatic cells are inactive, and thus fail to respond to the presence of the mercurial salt, and to eliminate as speedily as it reaches the he- patic gland, then the mercurial will pass over into the general circulation, where, finally, the salivary glands will attempt to perform the work of elimination that should have been accomplished by the liver-cells. In like manner, when the calomel is given too freely, or when opium is given to check the cathartic action, and the hepatic cells either become exhausted from over-tax- ation, or they are retarded in their action by the opium, when the mercurial passes into the general circulation. Thus, again, the toxic symptoms with salivation will be produced. So long, however, as the hepatic cells retain their selective and excretory activity, it is absolutely im- possible to develop the toxic symptoms of mercury. The use of enormous doses may become the cause of ex- hausting the hepatic cells, whereupon poisoning will, of course, ensue. " From this study of calomel and its allied prepara- tions, the belief is entertained that all mercurial prepara- tions act in a similar manner, if of any value; that the specific effect of the mercurials in syphilis is simply due to the augmented hepatic function produced by the elimination of the metal. The more irritating prepara- tions, in so far as they act at all, act in the same way as calomel, but if taken in too large doses, are so locally irritating that they become poisonous in themselves. Therefore mercury is indicated in all cases where it is necessary to increase the functional activity of the liver and aid this organ in eliminating not only more bile, but also poisons of all kinds, microbic, ptomainic, leuco- mainic, katabolic, and vegetable or animal in origin." In contrast with the foregoing somewhat optimistic views concerning the therapeutic virtues of mercurials should be quoted the remarks of Budd (" Diseases of the Liver," 1846) : " The frequent use of mercurials in func- tional hepatic complaints may lead to much mischief. When the liver has become accustomed to the stimulus of mercury, no other medicine will sufficiently excite its action. The person is then led to the habitual use of the medicine, and, after a time, the constitution is under- mined by it. It increases the activity of the liver at first, but seems to leave it weaker than before, and, if fre- quently resorted to, the nutrition of the patient, impaired by the original disease, is still further impaired by the drug." It will not be out of place to insert here the opinion of Thomas King Chambers, of London ("The Indiges- tions," third American revised edition, Philadelphia, 1870, p. 377), long and favorably esteemed as an author- ity on digestive disorders, as follows: " The superstitious use of mercurials is very singular. They are supposed to make the alvine excretion normal, though the only visible result is its becoming more abnormal with each dose. They are supposed to do good by ' acting on the liver,' whether the liver is acting too little or too much. They are supposed to ' act on the liver,' though it has been shown by Dr. Scott's experi- ments (' Beale's Archives,' vol. i., p. 209), that the quan- tity of bile is not increased, nay, it is rather diminished when mercury is taken. All that the metal can be really seen to effect on the hepatic function is a poisoning of the bile, so as to prevent absorption by the ilia, and to cause the secretion to be rejected in excess and in a liquid form per anum ; and that is a very doubtful ad- vantage to most invalids. "The only effect at all desirable following mercurial purgation, and which in fact seems to constitute for patients the attraction to its use, is the relief of certain cerebral symptoms, giddiness, muscse volitantes, dark globes in the sight, singing in the ears, etc., which re- sult from excess of venous over arterial blood in the brain. It acts in this case as a destructive upon the venous blood, and adjusts the balance by subtraction. Time after time, as the rough experiment is resorted to, the strength is lessened by it, and as the necessity for its use appears greater, more and more subtraction is re- quired. The good and true way of restoring the circula- tion to its normal condition is by addition, by increasing the supply of new-made blood to the arteries." In order to reconcile the differences existing between the views held now and those which obtained twenty-five or forty years ago, it should be noted that a generation ago practitioners had no true conception of the physio- logical effects of comparatively small doses, all dosage being determined by promptness in effect which, being followed by depressant manifestations, was very properly condemned. While in the preceding remarks but little has been said of the antiseptic properties of mercurials-their value in this direction being inferred-it will be appropriate to consider this principle more fully than can be done in the section on Therapeutics. Undoubtedly mercuric chloride, owing to its actively poisonous character, stands at the head as a general antiseptic. Other drugs are of equal value as regards their power to destroy bacteria, but none of them seems to possess the same degree of antip- athy toward the spores of bacteria ; hence, when these spores are removed from contact with ordinary antisep- tics and transferred to a suitable soil, they again multi- ply as rapidly as before. The favorable results attending the employment of less powerful antiseptics than the bichloride in surgical practice may be credited to the method of using the solutions freely, whereby the spores are carried off along with the debris and other foreign sub- stances that would act as irritants and thus favor subse- quent infection. And to this latter cause (irrigation) may be ascribed the beneficial effects of sterilized water. On the other hand, oily substances like creolin, lysol, and Peruvian balsam, owe their antiseptic virtues in part to the fact that they take up and cling to foreign substances, thus interfering with the reproduction of spores by pre- venting them from being lodged in a proper soil ; the latter is an important factor in determining the vitality of spores as well as that of the bacteria themselves. Again, it has been found that comparatively weak so- lutions will prevent the development of bacteria, while much stronger solutions are required to kill developed bacteria, all of which is graphically shown in the accom- panying table, compiled by N. de la Croix, and for the most part confirmed by Koch (Brunton : " Pharm. Ther. and Mat. Med.," third edition, 1888, p. 91). (See p. 625.) The hypodermatic employment of mercurials, popular with some, but strongly condemned by many, is advo- cated on the ground that curative effects in syphilitic lesions are produced more speedily than when the drug is given by the mouth or by inunction, and besides, that the digestive functions escape serious derangement. According to the investigations of Winternitz, when mercury is given by interstitial injection, elimination is effected principally through the kidneys; and he has also demonstrated that the percentage of the drug thus 624 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Mercury. Mercury. (SUPPLEMENT.) Corrosive sublimate 1 : 25,250 Chlorine 1 : 30,208 Chlorinated lime 1 : 11,135 Sulphurous acid 1 : 5.448 Bromine 1 : 6.308 Sulphuric acid 1 : 5,734 Iodine 1 : 5,020 Aluminium acetate 1 : 4,268 Oil of mustard 1 : 3,353 Benzoic acid 1 : 2,867 Boro-salicylate of sodium 1 : 2,860 Picric acid 1 : 2,005 Thymol 1:1,340 Salicylic acid 1 : 1,003 Berman, of potassium 1 : 1,001 Carbolic acid 1 : 669 Chloroform 1 : 90 Borax .... 1 : 62 Alcohol 1 : 21 Eucalyptol 1:14 Chlorate of potassium Prevent the devel- opment of bac- teria taken from meat infusion. 1 : 50,250 1 : 37,649 1 : 13,092 1 : 8,515 1 : 7,844 1 : 8,020 1 : 6,687 1 : 5,435 1 : 5,734 1 : 4,020 1 : 3,777 1 : 3.041 1 : 2,229 1 : 1,121 1 : 1,433 1 : 1,002 1 : 112 1 : 77 1 : 35 1 : 20 1 : 30 Do not. 1 :10,250 1 : 4,911 1 : 488 1 :135 1 : 769 1 : 205 1 : 59 1 : 220 1 : 50 1 : 303 1 : 706 1 : 109 1 : 343 1 : 100 1 : 22 1 : 44 Prevent the repro- duction of unde- veloped bacteria^ 1 : 12,750 1 : 6,824 1 : 578 1 : 223 1 : 1,912 1 : 306 1 : 2,010 1 : 80 1 : 306 1: 77 1 : 394 1 : 841 1 : 212 1 : 454 1 :150 1 : 42 1 : 08 1 :14 1 :8 1 : 203 Do not. 1 1 : 5,805 1 : 22,768 1 : 3,720 1 : 2,009 | 1 : 2,550 1 : 2,020 1 :1,548 I 1 : 427 1 : 591 | 1 : 410 1 : 72 1 :1,001 1 : 109 1 : 60 1 : 150 1 : 22 1 : 112 1 : 48 1 : 44 1 :116 Kill developed bac- teria. k-l I 1-L k-L 1-1 1-4 |-L h-l i-t i-L 1-4 »-»•»-* I-* t-L k-l o co cwcyic oo co Do not. 1 : 1,250 1 : 431 1 :170 1 : 190 1 : 336 1 : 116 1 : 410 1 : 64 1 : 28 1 :121 1 : 30 1 : 150 1 : 20 1 : 150 j 1: 266 i Prevent the repro- duction of devel- oped bacteria. 1 1 : 5,250 1 : 460 1 : 258 1 : 273 1 : 550 1 : 205 1 : 510 1 : 92 1 : 40 1 : 210 1 : 50 1 : 200 1 : 36 1 : 35 1 : 200 1 : 4 1 : 08 1 : 12 1 :118 1 : 583 Do not. 1 : 10,250 1 : 28,881 1 : 3,148 1 : 8,515 1 :13,931 1 : 5,734 1 :10,020 1 : 4,268 1 : 3,353 1 : 2,877 1 : 1,343 1 : 2,005 1 : 1,340 1 :3,003 1 : 2,005 1 : 402 1 : 30 1 : 11 1 : 20 Prevent the de- velop ment of spores in boiled meat infusion. 1 : 12,750 1 : 34,589 1 : 4,716 1 : 12,649 1 : 20.875 1 : 8,020 1 : 20.020 1 : 4,778 1 : 5,734 1 : 4,020 1 : 1.694 1 : 3.041 1 : 2,229 1 : 6,004 1 : 3,041 1 : 502 1 : 43 1 : 21 1 : 29 Do not. 1 : 6,500 1 :1,008 1 :109 1 : 325 1 : 493 1 : 306 1 : 510 1 : 937 1 : 77 (?) 1 : 50 1 : 35 1 1 : 200 1 : 109 1: 603 1 : 101 1 : 22 1:177'" Prevent reproduc- tion of spores. 1 :10,250 1 : 1,027 1:134 1 : 422 1 : 603 1 : 420 1 : 724 1 : 1,244 1 : 108 (?) 1 : 77 1 : 50 1 : 300 1 : 212 1 : 1,003 1 : 150 1 : 42 1 : 14 1 : 203 1 : 14 Do not. 1 : 7,168 1 : 15,606 1 : 286 1 : 12,649 1 : 5,597 1 : 3,353 1 : 2,010 1 : 6,310 1 : 3,353 1 :1,439 1 : 2,860 1 : 2,005 1 : 1,340 1 : 1,121 1 : 300 1 : 502 1 :103 1 :107 1 : 21 1 : 205 Prevent develop- ment of spores in unboiled meat infusion. 1 : 8,358 1 : 23,182 1 : 519 1 : 16,782 1 : 8,375 1 : 5,734 1 : 2.867 1 : 7.535 1 : 5.734 1 : 2.010 1 : 3.777 1 : 3.041 1 : 2.229 1 :1.677 1 : 403 1 : 669 1 : 134 1 :161 1 : 30 1 : 308 1:13 1 Do not. 1 : 2,525 1 : 1,061 1 : 153 1:135 1 : 875 1 : 72 5 : 843 1 : 478 1 : 40 (?) 1 : 77 1 : 35 1 : 100 1 : 20 1 : 343 1 : 35 Prevent reproduc- tion. 1 : 3,358 I : 1,364 1 : 2>6 t : 223 1 : 1,153 1 : 116 1 : 919 1 : 584 I : 60 (?) 1:121 1 : 50 I : 117 1 :36 1: 450 1:50 1 :10 1 : 122 1 : 87 1 :142 1 : 30 j Do not. excreted remains unaffected whether soluble or insolu- ble preparations are used, and that potassium iodide, even in substantial doses, exercises no influence upon elim- ination through the renal structures. The advocates of hypodermatic medication have, as yet, advanced no plausible explanation of the increased advantages there- from, and its acceptance on the part of the profession will be referred to in the section on therapeutics. (See " Surgical Practice.") The popularity of inunctions may be accounted for from the fact that mercury thus administered finds its way into the circulation in the form of extremely fine particles-without running the gauntlet of the liver- and its therapeutic effects are thereby enhanced in the same manner as when the drug is taken internally after thorough trituration. Vaporization also produces more distinct effects, probably for the same reason, but both methods are open to objection, since the amount actu- ally introduced cannot be definitely measured or de- termined, and it requires the closest scrutiny to discover evidences of toxicity before serious harm results to the patient. It is doubtful if any considerable difference exists ultimately when mercury reaches the general cir- culation, whatever mode of administration is adopted. Summary.-Having now, in a general way, completed the study of mercurials, beginning with the gross lesions which attend acute poisoning, and following up with an investigation of their effects upon the brain, heart, liver, kidneys, etc. ; and commented relative to their influ- ence upon the blood, the tissues, the protoplasmic cells, oxidation, secretion, and elimination, when given in- ternally, subcutaneously, by inunction, or vaporization, it seems as though nothing more could be said which would add to our present knowledge concerning the wonderful effects of this drug. And yet notwithstand- ing the abundant testimony brought forward to account for the effects witnessed, and the tentative suggestions advanced relative to its influence upon cellular activity, there is nothing, absolutely nothing offered which en- ables us to determine with any degree of scientific accu- racy just how therapeutic results are obtained. There is still lacking an important link to complete this chain of evidence before the employment of mercury can be said to rest upon a strictly scientific foundation. Perhaps an inquiry concerning its action as a sorbefa- cient will throw some additional light upon this mysteri- ous and hitherto unexplained problem. To say that the effects of mercury are due to " catalysis," "specific," or "selective" action, or to assume that the "hypothesis of interference" is sufficient to account for them, is merely to substitute one unknown quantity for another. For example, with our present knowledge, we can un- derstand and explain the causes which conspire to affect the pulse, temperature, and respiration ; and we can also follow its action upon the functions of the liver, the kidneys, the skin, the alimentary tract, the salivary glands, and buccal mucous membrane, since these or- gans and structures are concerned in eliminating the poison ; but how shall we demonstrate its sorbefacient properties in removing fibrinous exudations, syphilitic deposits, iritis, pericarditis, and inflammatory reactions of a benign character, without at the same time admit- ting that the drug may have some deleterious or unto- ward effect upon the organism as a whole ? The only probable explanation of this paradox which suggests it- self is based upon the assumption that in moderate dos- age, the irritant (stimulant) action of mercury suffices to increase metabolism-indirect or constitutional effects -and that like all other poisons, it will be eliminated by those channels which are best adapted for the purpose- direct or local effects. The so-called "specific" action, " elective " action, or " catalytic" action on morbid pro- ducts and diseased conditions, is nothing more than an incidental physiological effect, dependent upon the well- known properties of all poisons to manifest a disposition to associate themselves with retrograde changes-mer- cury not excepted. The therapeutic study of mercury is therefore nar- rowed down to a consideration of two principal factors, Table Showing the Action of Drugs on Bacteria. 625 Mercury. Mercury. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) namely, the indirect or constitutional influences (conse- quential benefits), and the direct or local influences ex- erted upon functional or pathological disturbances (physiological benefits). This discovers the secret of the successful employment of all remedies, organic and in- organic, which are poisonous in themselves or foreign to the organism, and each has its value in certain directions, each has its limitations in all directions. When this value is overrated, or these limitations exceeded, harm invariably attends its administration. Our future tri- umphs in therapeutics, therefore, lie in the direction of studying, not alone the modifications affected by disease upon cell-life and cell-function, but the same strict rules must be applied to the reconstructive metamorphosis resulting from the employment of remedial agents, as has been done in the case of mercury, a remedy which, by its action upon cellular activity, removes and dissi- pates fibrinous exudations, syphilitic deposits, iritis, and pericarditis ; which corrects the derangements of cell- function incident to inflammatory reactions, all phenom- ena bearing upon its therapeutic value being in perfect harmony with pathological study and physiological ob- servation. Therapeutics.-In preparing the therapeutic sec- tion, the writer has aimed to give expression to the trend of modern practice in the use of mercurials, and to this end has incorporated under various sub-headings per- sonal communications from recognized authorities in their respective departments. Such reports are, in many instances, more representative than a summary by a single writer, and in the following arrangement, which is intended merely to cover the principal disorders to which the drug is adapted, these contributions will be the means of guiding the student toward a true concep- tion of its proper place in the physician's armamenta- rium. Gastro-intestinal Affections. - Notwithstanding the harm which has attended the use of mercurials in this class of disorders, they undoubtedly possess distinct therapeutic virtues which entitle them to confidence ; but in order to accomplish good, they must be exhibited with intelligence and discrimination, the conditions be- ing clearly indicated in the following remarks by Pro- fessor Andrew H. Smith, of New York : " Mercurials may be employed in gastro-intestinal af- fections with one of three objects, namely, to simply move the bowels, to excite hepatic and glandular secre- tion, and as anti-ferments. " For the first purpose, calomel is the agent generally employed. It acts, probably, by increasing the flow of bile-which itself is a cathartic-and by stimulating the intestinal glands. This is a fair inference, from the fact that the purgative effect of calomel is not increased, but rather diminished, by giving large doses. A dose of several grains is sufficient to produce a large outflow of bile, and if more is taken the excess seems to act me- chanically, like bismuth, to stay the cathartic action, rather than as a local irritant to the mucous surface. Short of producing a cathartic action, mercurials are much employed when there is evidence of deficient he- patic and glandular activity,such as is afforded by a furred tongue, a bad taste in the mouth, headache, anorexia, etc. Small doses are sufficient for this purpose, and they seem to influence cell-action in the epithelial as well as in the glandular structures. It is remarkable what an effect a single dose of a fraction of a grain of calomel will have in removing the 'patchy' condition of the tongue, so often observed in gastro-intestinal disorders. "As intestinal antiseptics, mercurials are of great value, especially calomel and the bichloride. It is probable that the first becomes to some extent changed into the second. The efficiency of the bichloride as a germicide, in attenuated solution, is universally recog- nized. Indeed, it has been suggested that the whole mass of the blood might be rendered sterile by non-poisonous doses of this agent. Be this as it may, the intestinal disturbances attributable to ptomaines, generated in the digestive tube, are often relieved with remarkable promptness by remedies of this sort." From the foregoing, therefore, it is evident that these remedies will be serviceable in the treatment of such dis- orders as gastric ulcer, gastro-intestinal catarrh, and to a certain extent in nearly all cases of diarrhoea and dysen- tery. As a purgative, calomel is mostly used when the immediate effect is desired, while in cases that do not re- quire this effect, and when the object is to reach distant organs, one of the more irritant preparations (biniodide, protoiodide) may be given. Occasionally, during the progress of disease, sometimes in the early stages of febrile affections, a single substantial dose of calomel may be helpful. It requires a nice discrimination, how- ever, to determine the conditions which demand a large dose of calomel for its purgative effects. To quote Thomas King Chambers : " Some call this clearing the decks for action ; in a majority of instances, they may be said to throw overboard much of the best tackling on the ship and loosen her armor-plates." In typhoid fever, calomel in small doses is unquestion- ably of benefit, but large doses, or its continuous ad- ministration as a routine practice should be condemned, since other remedies, safer to the patient, better for the disease, are now at our command. In all subacute and chronic cases, when the hepatic function is below par, the most striking results will attend the judicious em- ployment of the biniodide in small doses (gr. two or three times a day). Hepatic Disorders.-Mercury has long been recognized as a useful remedy in that morbid complexus known as "biliousness," and when administered in dosage that pre- cludes the possibility of after-depression, it appears to be quite serviceable, although it is contra-indicated in acute congestion of the liver. In passive congestion, on the contrary, small doses of mercury-calomel or the bin- iodide in solution-will promptly produce beneficial effects. It is a mistaken notion that mercurials are of value in hepatic abscess, gall-stones, acute yellow atrophy, but they are of some temporary service as adjuvants in jaundice. It is doubtful if mercurials have any thera- peutic value in hepatic cirrhosis, but they may be of service in ascites associated with this condition for their constitutional effects. Schwass (Berlin, klin. Wochenschr., 1888, No. 38, p. 762) reports favorable results from the employment of calomel when treatment is begun in the early stages, although, even when combined with the use of digitalis, the disease is not cured. In a total of ten cases, only the recent ones (5) were benefited by the treat- ment. Dujardin-Beaumetz advises a combination of calomel and corrosive sublimate as an hepatic stimulant-gr. jss. of the former and gr. of the latter-and this, with the addition of arsenic, is a favorite formula w'ith Dr. William H. Porter (New York). On the whole, however, small doses of corrosive sublimate (gr. hourly) with suitable adjuvants, will generally accomplish all the good that can be gained from these large doses, and thus the depressant effects are avoided. In adults suffering from passive congestion of the liver, haemorrhoids, and tenes- mus, with or without bloody stools, these small doses produce magical results. Diseases of the Kidneys.-The use of calomel as a diu- retic was recommended some years ago, and has attracted considerable attention. The objection to its use, how- ever, lies in the fact that it must be given in sufficient dosage to produce stomatitis, which requires active treat- ment in the way of gargles ; and sometimes diarrhoea follows, making the use of opium necessary, and for this reason the beneficial effects have been questioned. It is especially advocated as a diuretic in cedematous conditions associated with cardiac disease, and it is said that, when continued for a sufficient length of time in the healthy subject, it produces in from two to ren days distinct diuresis, a condition similar to that which obtains from the subcutaneous employment of corrosive sublimate and the inunction of blue ointment. It is claimed that the subcutaneous injections.act most powerfully as diuretics, the inunctions least, while the internal administration produces an effect about midway between the two. Small doses have no diuretic effect; only medium and 626 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Mercury. Mercury. (SUPPLEMENT.) large doses increase the amount of urine. The somewhat doubtful claim has been put forward also, that calomel given under these conditions not only diminishes, but cures pathological changes in the kidneys. Biegarski (British Medical Journal, June 22, 1889) is of the opinion that cardiac dropsies are even more amenable to this treatment when corrosive sublimate is given subcutane- ously, less to mercurial ointment by inunction, and that in dropsy due to kidney disease and obstruction of the portal circulation, the mercurials are of very little use ; all of which confirms the view advocated by Nothnagel a year or so previously. Various theories have been advanced to account for the diuretic action of mercurials in cardiac disease, when this does not obtain in renal disease proper, although in health the diuretic action is perceptible. Jendrassik sug- gests that calomel causes absorption of the dropsical fluid by the blood, while Fiirbringer believes it is due to an irritation of the renal epithelium by the mercury ; but neither of these theories appears to be satisfactory. There is reason to believe that increased oxidation (cellular ac- tivity) is an important factor-previously referred to-and that the determination of calcareous matter in the kidneys may likewise exercise an irritant (stimulant) action upon the epithelial cells of the convoluted tubuli, these cells being principally concerned in the elimination of solids (Heidenhain) ; and the elimination of mercury itself would fall within this latter category. Phthisis.-In anaemia occurring as a result of phthisical dyscrasia, Dochmann (Therap. Monats., September, 1888, p. 415) claims that calomel has a rapidly favorable ac- tion, even when iron has failed, since it improves the appetite, regulates the bowels, and corrects menstrual difficulties. The dose recommended is, gr. f, three or four times a day, the medicine being discontinued for several days at the expiration of five or six days. A recrudescence of the fever demands an increase of the daily dose for a time. Martell (Prag. med. Wochenschr., 1888, No. 25) also reports good results from the same method. The latter authority advocates the employment of calomel topically as well as internally and by inhala- tion. Of course, in those cases where the tubercular process is of an indolent character, the increased oxida- tion resulting from the employment of mercury cannot be other than beneficial (consequential and local benefits); but it can have no direct influence upon the bacilli. Given in small doses and not too long continued, it stimulates cellular activity. Syphilis.-As an indication of the conservative ten- dencies in the employment of mercurials in syphilis, it should be noted that Mr. Jonathan Hutchinson, the veteran syphilographer, now advocates the employment of gray powder (hydrargyrum cum creta), in one-grain doses, three to six times daily, one grain of Dover's powder to be given twice a day to control the bowels; but unfortunately the opium is extremely objectionable, since it involves ultimately the treatment of two diseases instead of one. There is no doubt of the curative action of mercury in syphilis, but in times gone by it has too often been accomplished at the expense of the patient's health, owing to the unnecessarily large doses adminis- tered, facts very fully brought out by the observations of Professor Edward L. Keyes, of New York (" Trans. In- ternational Medical Congress," September, 1876), whose positive conclusions are as follows : " 1. Mercury is an antidote to the syphilitic poison, and of service in controlling all its symptoms in all (even the latest) stages of the disease, its power over gummata being least marked and not to be relied upon. " 2. Mercury in minute doses is a tonic. "3. Iodine cures certain symptoms of syphilis, but does not prevent relapse. "4. The use of mercury, long-continued, uninter- ruptedly, as far as practical, in small doses, from the time of the earliest eruption, constitutes the best treat- ment of syphilis." In connection with the above may be mentioned the views of Professor William Osler, of Baltimore (private communication) on this important topic, as follows : " Of course, we all know the striking influence of the mer- curials in relieving the blood-condition of syphilitic cachexia, but here, I think, the action is undoubtedly similar to quinine in malarial cachexia, not so much a direct action upon the blood as a neutralization of the poison and natural restitution of the corpuscles." Mercurials are also of value in non-specific as well as in the specific forms of skin diseasis, the indications for their employment being deducible 'from, our previous conclusions. Ophthalmology.-The following concise report from Professor Samuel D. Risley, of Philadelphia, practically covers the employment of mercurials in ophthalmology : "In ophthalmological practice I esteem mercury of great therapeutic value. There are large groups of dis- eases in which no other drug is so useful, and this is true not only of those forms of eye disease where syphilis is the important etiological factor, but also of affections of the uveal tract, and in certain forms of corneal inflam- mation not traceable to this disease. It is used without hesitation in all forms of plastic iritis, in exudative cho- roiditis, neuro-retinitis, etc., whether of known specific origin or not. My experience would seem to suggest that, as a matter of course, this drug should be adminis- tered in recognized syphilitic cases, whether occurring along with other secondary symptoms or associated with the later manifestations. It can be administered either in the form of the corrosive sublimate, in small, fre- quently repeated doses, by means of inunction, or the mercurial bandage. " In acute forms of disease, as in plastic iritis, inunc- tions pushed to the point just short of ptyalism are to be preferred, the patient meanwhile being confined to his bed. In chronic forms of inflammation, e.g., interstitial keratitis, corrosive sublimate is employed, or, instead, the bandage worn around the waist night and day, and kept well covered with mercurial ointment. Not infre- quently, I employ the well-known formula of potassium iodide and corrosive sublimate, but this combination seems best adapted to cases of neuro-retinitis than to other forms of eye disease." Diseases of the Throat and Nose.-As expressing the views of practitioners in this special department of medicine, the following report from Dr. George B. Hope, of New York, will prove interesting and sug- gestive : "Asa class, hypertrophic derangements of the mucous and submucous areolar tissues are so peculiarly resistant to the usual range of topical applications as to discourage all such measures, and lead to a resort to surgical or de- structive agents in order to overcome the effects of struct- ural changes. However applicable this may be under certain favorable conditions, there are yet cases where this course is neither rational nor practicable, and it is in these instances that a remedy addressed through con- stitutional channels offers the only prospect of relief. Iodide of potassium and mercury furnish the most strik- ing types of active cellular-therapy agents, and from this standpoint-eliminating the former on account of its un- favorable action to the mucous membrane-the indica- tions for mercurial treatment may be considered to be definitely established. As an illustration may be cited a case of simple, chronic, hypertrophic laryngitis, in which the ventricular bands were so far involved as to offer a serious obstruction to respiration, with the sur- rounding parts in accord with the prominent pathological condition. Under the administration of full doses of the protoiodide of mercury, a speedy and satisfactory resolu- tion was obtained without the introduction of any aux- iliary line of treatment. " In a word, if the theory of mercurial action is correct in its clinical details-that it encourages the oxidation of loosely-formed cell-elements, and stimulates their elimi- nation by the lymphatics-it would seem that the legiti- mate limits for its administration, aside from syphilitic affections, are particularly covered by conditions repre- senting the imperfectly organized type of inflammatory exudation, as in (chronic) infiltration of the intercellular tissues, or the thickening of the epithelial layers, as in 627 JUerc ury. Mercury, REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. moderate pachydermatous laryngitis-features of chronic catarrh." Nervous Diseases.-From Dr. Wharton Sinkler, of Philadelphia, the writer has received the annexed report, which fairly comports with views already advanced, and in a large measure confirms them from the clinical stand- point " In regard to the employment of mercurials in nervous diseases, will say tbftit in organic diseases of the brain and cord, when due to syphilis, of course, mercurials are of prime importance. It does not follow, however, that all scleroses of the spinal cord are benefited by the adminis- tration of mercurials, even in those cases where there is a clear and undoubted history of syphilitic infection to- gether with secondaries. Locomotor ataxia is an illus- tration of the truth of this observation. A large propor- tion of the cases of tabes with,which we meet have a more or less distinct history of syphilis, some writers asserting that as many as seventy or eighty per cent, of tabetics have had this disease. Notwithstanding this fact, few cases of locomotor ataxia are benefited, even by the most vigorous course of mercurials and iodide of potassium. On the other hand, some of the other forms of syphilitic infection of the nervous system yield promptly and completely to mercurials and iodide of potassium. Those cases which are spoken of as syphilis of the brain and cord seem particularly ready to yield to mercurial treatment; and in this class of cases mercury seems to be of more value than the ' mixed treatment,' or the iodide of potassium alone. " For some reason, mercury by inunction gives better re- sults in the treatment of syphilis of the nervous system than when the remedy is given by the mouth. I have had comparatively little experience in the use of mercury hypodermatically, but recall one patient suffering from spinal sclerosis with a specific history, who made very marked improvement under the use of the bichloride of mercury administered hypodermatically. " In the treatment of nervous syphilis, I have not found it necessary to push mercurials to the point of salivation, and in one or two cases where I accidentally salivated patients, there was no apparent benefit to the nervous disorder for which the mercury had been given. As a rule, I find it preferable to give mercurials in conjunction with iodide of potassium, but frequently I administer it alone. In some of the forms of sclerosis of the cord, not due to syphilis, small, alterative doses of mercury are of great value. Usually, the remedy is to be persisted in for a number of months, and it is best to give it in small doses. I prefer in these cases to give the bichloride, as I think it is less likely to disturb the stomach and intes- tinal tract, and it is borne for a longer period of time than the other preparations of mercury. As a general nerve-tonic in some of the functional nervous disorders, mercury is of considerable value, more especially, I think, when it is combined with arsenic and iron. " There are some forms of headache, especially those of specific origin, in which small doses of the bichloride of mercury are very useful. In the severe noctur- nal headaches of syphilitics, one one-hundredth of a grain of this salt, repeated hourly, will sometimes afford relief. Cerebral and spinal meningitis are treated most effectively by the administration of mercury ; and calomel or gray powder seems to answer better in menin- geal inflammation than any of the other mercurial salts, as it is necessary to get a prompt and speedy impression." Obstetrics.-In obstetric practice the use of mercurial solutions (bichloride, 1 to 5,000) has largely given place to carbolic acid, creolin, and lysol, and other less toxic substances for the vaginal douche and intra-uterine ap- plications. Indeed, the employment of any antiseptic is strongly condemned as both useless and dangerous in un- complicated labors. In 1889, Garrigues (American Jour- nal of the Medical Sciences, August, page 109) published a synopsis of twenty-two cases in which death occurred from the use of corrosive sublimate solutions, and at that time he favored creolin solutions (two per cent.) as a substitute for mercuric chloride. Corrosive sublimate injections in ordinary midwifery (SUPPLEMENT.) cases need not be practised, but the solutions may be used for the disinfection of the outer surfaces of the pa- tient, for the hands of nurses and physicians, and for all materials brought into contact with the patient. When intra-uterine medication is demanded, the strength of the solution should not exceed 1 to 5,000 to 10,000, and the injections should not be given more frequently than twice in twenty-four hours, although the vaginal douche may be given as often as every three hours; and at the time care should be taken that no symptoms of ab- sorption arise, and for which the physician must be con- stantly on the outlook. Upon the first appearance of toxic symptoms, the medicament must be immediately discontinued until all danger has passed. As the bi- chloride combines with impurities in the water as well as with albuminous principles and alkaloidal poisons, and is seriously affected by alkaline fluids, it has been sug- gested that it might be prepared in concentrated form with glycerine and hydrochloric acid dilute, from which solutions could readily be prepared. By the use of antiseptics and the adoption of measures looking to asepsis, the septic death-rate in American ma- ternities has been reduced to less than one per cent. In- toxication from the intra-uterine douche has been of such frequent occurrence that a suggestion is offered to the effect that hydrogen dioxide solutions be substituted, on account of the latter being harmless to patient, efficient as a destroyer of unhealthy tissues and discharges, cleanly and perfectly manageable, and, withal, prompt in action. Owing to the rapid oxidation which takes place when the dioxide is brought into contact with morbid products, in using it for the intra-uterine douche care must be taken that the outflow is not obstructed, since the gas generated might be sufficient to force morbid ma- terial into the tubes, and thus defeat the purpose for which it was used. Concerning the employment of mercurials internally against syphilitic infection, the following brief report from Dr. Joseph Price, of Philadelphia, will be read with increasing interest, since it furnishes a demonstra- tion of their almost universal value : "I have for years used mercurials freely in syphilitic child-hearing and pregnant women, also in syphilis of the new-born. The iodides are of but little value, except in the management of symptoms, and in the tertiary stage in mothers. At present, I have a number of mothers under treatment continuing from periods of two to nine years; some of them have borne as many as three healthy children in that time, no symptoms reappearing in either mother or offspring." Diseases of Children.-Mercurials find a wide range of application in the treatment of diseases peculiar to child- hood and infancy, although indications point to the probability of their too liberal use in some cases. Al- beit their value is not denied, there are many instances where other and more efficient medicaments may be substituted, so that in them alone does not lie our only hope. For example, in croup and diphtheria mercurial- ization really accomplishes no good purpose, and be- sides, we have other remedies that can be used as ad- juvants, which are more effective and entirely free from the dangers arising from mercurialization. The routine method of treating diphtheria should be remodelled upon a scientific basis corresponding with our present knowl- edge concerning the life-history of the pathogenic micro- organism associated with it. Clinical observation is opposed to emetics in both croup and diphtheria, the two being so closely connected that it is difficult to say positively where the one ends and the other begins. By many, calomel is given as a preliminary in diph- theria to produce some effect upon the bowels, when corrosive sublimate is substituted, but this course must be followed with caution, because in the serious cases absorption may be interfered with to an extent that will prevent or delay the manifestations of mercurialization, when constitutional symptoms rapidly supervene. It is doubtful if, in such cases, the mercury be of any ser- vice ; nay, indeed, clinical experience is against the pro- duction of a factitious disease. 628 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Mercury. Mercury. The medicinal treatment of diphtheria should be con- ducted with two principal objects in view, viz. : (1) To arrest the rapid multiplication of germs, and (2) to coun- teract the pathological changes effected by their products. For the first, an anti-biotic is required, to render the soil unsuitable for their growth; and for the second, an anti-toxine is demanded, to fortify the system against the morbid products. Unfortunately, mercurials cannot be used in sufficient dosage, with safety to the patient, to accomplish either purpose. Locally, the mercurial preparation must not be too readily soluble, and should not too easily combine with albumin or other substances which destroy its antiseptic value. Internally, diffusi- bility is desirable, and with the recent introduction of new compounds it is hoped a better and more efficient therapeutics will be instituted. In this connection should be mentioned an interesting and valuable analyt- ical report by Dillon Brown, covering 2,368 patients in whom intubation was practised, with 647 recoveries, or 27.3 per cent., and including from his own personal ex- perience 115 cases, all seen in consultation. Of the lat- ter number, 50 had not been subjected to the bichloride treatment, and the recoveries were 24 per cent. ; in the other 65 cases, with bichloride, 36.9 per cent, recovered. Stclldcn, a Swedish physician, reports 1,400 cases of diphtheria treated by mercury cyanide, with but 69 deaths (approximately, 5 per cent.), while the usual rate of mortality in his district has been 92 per cent. The method of using the cyanide consisted in adding to gr. | mercury cyanide, half a drachm of tincture of aconite and two ounces of honey, and of this mixture the pa- tient takes a teaspoonful at intervals of an hour or less. In addition to this, a gargle-1 to 10,000 mercuric cyanide and peppermint-water-is employed every fifteen min- utes. The following comprehensive resume by Professor Diary Putnam-Jacobi, of New York, very fully embodies the practical adaptation of mercurials in this class of cases : "The position of mercurial preparations in the nur- sery has varied greatly within the present century. At one time vaunted under many forms, as specific for many ailments or serious diseases; at another, almost com- pletely condemned ; they have recently been reinstated to a considerable extent in the armamentarium of the family practitioner. The list of cases in which mercu- rials are to-day employed is not, indeed, long ; but each disease on the list is important and of frequent recur- rence. "Therevival of mercurial medication, perhaps, prin- cipally depends upon the modern demonstrations of the great antiseptic power of mercury, and especially of its most poisonous salts, as the bichloride and the biniodide. Coincidently has been demonstrated themicrobic etiology of such diseases as diphtheria, and the occurrence of fermentations due to microbes in gastro-intestinal disor- ders. The utility of mercury in syphilis was well estab- lished by clinical experience before syphilis, as an infec- tious disease, had been referred, like other infections, to microbic inoculation. Although the precise infecting agent of syphilis has even yet not been isolated, its ex- istence is unhesitatingly assumed ; and with as little hesi- tation are the curative powers of mercury attributed to the antiseptic virtues of the drug. "In the great epidemics of diphtheria which raged in France in the first half of this century, Bretonneau used calomel extensively and pushed it to the point of saliva- tion. The result was disastrous, as was, indeed, every other form of treatment used in these terrible times. From about 1850-53, calomel was altogether abandoned, and tincture of iron and powerful stimulation adopted in its place. Quite recently, however, has been introduced, in addition to such stimulation, the internal administra- tion of minute doses of bichloride of mercury, especially when croup is threatened ; the use of sprays of solutions of bichloride, 1 to 4,000 to 6,000 of water ; finally, fumi- gations of calomel in croup, both before and after tra- cheotomy or intubation. One milligramme (gr. ff), per hour, may be administered for one or two days to even very young children, and in association with tinct- ure of iron given throughout the hour. It does not, as has been occasionally asserted, cause depression ; and it certainly does not cause salivation. Of course, like all other remedies in this dreadful disease, it often fails to cure. The spray can also be used once an hour. The fumigations are made by burning ten grains of calomel on a tin plate in the bed where the child is lying, while this is surrounded by a blanket to retain the fumes. In ordinary non-specific laryngitis, the same small doses of corrosive sublimate, or else hourly powders of calomel, gr. each, will often arrest an attack in a day or two. " What is the precise mode of action of the gray powder (hydrarg. cum creta) in acute gastric catarrh, is by no means well known; but empirically, its effi- ciency cannot be doubted. In fermentative diarrhoea, the bichloride, combined with bismuth and the carminative oils, is more useful. Even in adults, hourly doses of gr. -fa of bichloride are extremely efficacious for this dis- order, the poisonous drug seeming to neutralize the poi- sons which are forming in the intestinal tract. The same dose may also be given to children. " The time-honored method of giving a dose of calomel for the so-called bilious attacks of children, as of adults, is also again revived. In children these attacks generally mean gastro-duodenal catarrh with extension to the mu- coste of the bile-ducts. Calomel certainly increases the flow of bile, even in healthy animals-more probably its secretion ; under increased pressure this is able to force its way through the ductus choledochus-occluded by swelling-and the free passage of the secretion initiates the reduction of the swelling. " The points to remember in all these gastro-intestinal diseases is, that the mercurial is to be administered for a comparatively brief period-two or three days at the out- set-and not to be relied upon for prolonged use, nor to be frequently resorted to in states of chronic indigestion ; that is, if the conditions recur, and tend to become chronic. The old method of an occasional blue-mass pill is insufficient for the purpose ; other treatment is coinci- dentally required to stimulate the sluggish portal circu- lation. " In dysentery, fractional doses of calomel, combined with ipecac and opium, although an old, is a still justly accredited mode of treatment. Its value is increased when associated with the newer method of systematic ir- rigation of the bowels. The so-called method of Law, origi- nally applied to peritonitis, by which calomel, grain, was administered hourly, is still valuable, for in this way much more of the drug can be introduced into the sys- tem than when it is given in massive doses-or, possibly, a larger amount is converted into bichloride, and thus becomes a potent disinfectant to the putrid contents of the intestine. "No opposition has ever been raised to the adminis- tration of mercury in infantile syphilis, except by the fanatics that profess to cure adult syphilis without mer- cury. The bichloride, Van Swieten's liquor, is a conven- ient form, and can frequently be tolerated for a long time without causing gastric irritation. If this occur, the medication must, of course, be interrupted, or re- placed by mercurial inunctions. These, as well as bi- chloride baths-grains vij. to a bath-are well suited for the cutaneous and articular lesions of syphilis. Citrine ointment, diluted four times, is best adapted for syphi- litic vegetations around the anus and genitals. The mer- curial treatment should be continued, with interruptions at intervals of six or eight weeks, for a period of two years." Surgical Practice.-A full discussion of the antiseptic properties of mercurials in surgery does not properly come within the scope of this article, and it will be sufficient to refer briefly to the methods now in vogue, and which are set forth in the annexed communications. It should be stated that the value of corrosive sublimate as an anti- septic may be modified by various conditions, namely. temperature, albumin, bacteria, and light in the presence of organic matter, so that although immediately available, its power for good may not long remain, and thus a false sense of security is given the surgeon. Professor N. 629 IHercury. Methylene Blue. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Senn, of Chicago, expressed his continued confidence in it as follows: " I have tried many substitutes, but always fall back upon corrosive sublimate. I use for disinfection of hands and field of operation, a 1 to 1,000 solution ; for dis- infection of infected wounds, 1 to 1,000 to 10,000." Professor Roswell Park, of Buffalo, who seems to have followed closely the teachings of Sir Joseph Lister, is favorably impressed with the mercury-zinc cyanide. He writes as follows : ' ' Mercuric chloride and mercury-zinc cyanide I ordi- narily apply or employ in my surgical work. The latter comes very near being an ideal antiseptic, in my estima- tion. When either of these is used with judgment, it is capable, I think, of giving the greatest satisfaction. Still, I think we have now so many antiseptic drugs to choose from, that one may succeed in any branch of surgical work without using mercurial preparations. This is especially true since aseptic methods have been introduced. Indeed, every operator learns to place reli- ance on one or two drugs for this purpose in accordance with his training, his surroundings, or his personal idio- syncrasies. I do think, however, that we could dispense with mercurials as antiseptics, were we compelled to, without perceptible loss. " For occasional internal use, as intestinal antiseptic agents and general alteratives, it does not seem to me that we could make substitutions without serious loss. " The mercury-zinc cyanide solutions which I employ are usually 1 to 2,000. Compresses are used wrung out of a solution, 1 to 500. For disinfecting hands I ordi- narily use hydrogen dioxide in full strength. Instru- ments I boil, usually in a two per cent, soda solution. For the hands I use green soap with five per cent, lysol, and after that, frequently, the permanganate bath with bleaching in oxalic-sodium hypophosphite solution." Hypodermatic Medication.-Calomel by intra-muscular in jection was first used by Scarenzio as early as 1864, but owing, perhaps, to the faulty methods and lack of anti- septic precautions, it was not brought prominently to the attention of the profession until advocated by Neisser, of Germany (1885), wdio in 1888 modified Lang's formula for " gray oil." By the observance of strict antisepsis, it is said, abscesses are of rare occurrence. Wilson (Medical News, vol. lit, 1888, p. 593) reports twelve cases treated (sixty-nine injections) with very satisfactory re- sults. A grain of calomel, rubbed up with glycerine (TTt xv.), to which is added at the time the operation is performed a few minims of recently boiled water, and thoroughly shaken, constitutes the medicament. These injections are given at intervals of a week or ten days. In a private communication to the writer, dated March 10, 1893, Dr. Wilson says he has continued to use the treatment in proper cases since that time without modi- fication of importance. Lang's original formula (Brit. Med. Jour., June 16, 1888) for gray oil (oleum cinereum) is as follows : Mercury, Lanolin each 3 parts. Olive oil 4 parts. M. Sig.: For hypodermatic use ; contains thirty per cent, of mercury. The dose of gray oil is 0.10 to 0.15 c.c., introduced deep into the back or nates every five to eight days. Neisser's modification (oleum cinereum benzomatum) is given herewith : Mercury 20 parts. Liquid paraffin 40 parts. Benzine-ether 5 parts. M. One cubic centimetre contains about six grains of mer- cury. The dose is 0.25 c.c. at the same periods as the gray oil, and treatment is interrupted from time to time. When resumed, smaller doses are used, and the injections practised more frequently, as it has been found that the small dose at short intervals is better than the large dose at longer intervals. The gray oil can also be used as a topical application at points affected by the specific poison. -bone disease, specific disease of the larynx and nares. It is claimed that the gray oil subcutaneously has shown, special benefits in cases where the disease affects the ear, the Eustachian tubes, or the forehead. Lang has published the following conclusions : " (1) Gray oil is efficient with the least dosage of mercury ; (2) it is convenient for both patient and physician ; (3> dangers of reaction are but slight; (4) no abscess has at- tended several thousand injections ; (5) can be employed in all cases where a mercurial is indicated ; (6) can be- used in the immediate neighborhood of syphilitic le- sions." Watraszewski (Archiv fur Dermatologic und Syphilis, 1889), in comparing the therapeutic adaptation of calo- mel, yellow oxide of mercury, and gray oil, gives a de- cided preference to the yellow oxide in the dose of two- thirds to one grain. Mucilage is preferred as a vehicle for the following reasons : (1) It can be made of proper consistence to hold the powder in suspension ; (2) it has no local irritating effect ; (3) it does not decompose the mercurial salt; and (4) it excites no general disturbance. Notwithstanding the favorable evidence in favor of these preparations, the probabilities are that corrosive- sublimate is more extensively used in this country than any other mercurial for hypodermatic medication. Dr. Yvert, of Paris, some years ago submitted to the- Academy a note on the value of the bichloride as an anti- cholera vaccine, giving in evidence an account of forty- five patients so treated in Tonkin, with nine deaths (twenty per cent.), while the mortality in that section of Asia averaged sixty-six per cent. The dose administered ranged from one-third to two-thirds of a grain, when the patients were seen within twenty-four hours after the first manifestations of the disease. As a prophylactic it proved efficient. Topical Applications.-For boils and felons the citrine ointment is usually recommended, but it is less efficient than the biniodide, 1 part to 10 of benzoinated lard. The affected area should be covered with a thin layer of the ointment, and allowed to remain for two, three, or four hours, according to the tenderness of the skin, when it is thoroughly removed, internal medication being depended upon to complete the absorption. Mercurials are used as caustics in specific ulcerations and chancroids, but in ordinary cases they have been supplanted by other more acceptable products. As previously noticed, the oleate is very generally employed, and by means of ingeniously constructed instruments a powder can be deposited in the urethra in the treatment of urethritis. Mercurial inunctions have lately been more favorably received than hypodermatic injections in the treatment of syphilis, and at the recent Paris Congress there ap- peared to be a strong sentiment against the latter method, some going so far as to assert that it was dangerous. It is said the method has been abandoned by Schuster, Ka- posi, Julien, Fournier, and others, who have all returned to the earlier methods. John Aulde. METHACETIN (Para-oxymethy-acetanilide). This compound is a derivative of acetanilide, introduced in 1888 by F. Manhert as a substitute for phenacetine, to which it is closely allied. Its formula is C6H1OCH3- NHCHSCO, which differs from acetanilide, C«II6NH- CII3CO, by substituting for one atom of H one atom of the oxymethyl group OCH3. In phenacetine, C6H4OC2- HsNHCHsCO, the ethyl group replaces the methyl group of methacetin. It forms in white, glistening, scaly crystals, without color or faintly reddish ; odorless; melting at 127° C.; it has a slightly bitter saline taste ; is soluble in water at 60 F., 1 part in 530; in boiling water it dissolves in 12 parts ; is freely soluble in alcohol, chloroform, glycerine, and fatty oils. Methacetin possesses antipyretic, anti- septic, and analgesic properties similar to those possessed by phenacetine, which it resembles therapeutically, as. well as chemically. The advantage claimed for it over 630 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) mercury. Methylene Blue. all other antipyretics is its freedom from toxic effects or any injurious action on the blood-corpuscles. It is said not to cause any depression, malaise, tinnitus, or any of the lesser annoying symptoms. It is recommended par- ticularly for children and enfeebled persons. The only unpleasant effect is the production at times of free perspi- ration. Further experience has shown that it is not so devoid of these unpleasant symptoms as is claimed, as in addition to the profuse sweating, it occasionally causes very decided symptoms of collapse. It is, however, the most harmless of similar antipyretics. It has proved very serviceable in typhoid fever, typhus, pneumonia, phthisis, and all febrile diseases. It pro- duces a rapid fall of temperature, sometimes in fifteen or twenty minutes. The fall usually reaches its minimum in about three hours, remains stationary for about an hour, and then rises rapidly. With small and more fre- quently repeated doses the temperature may be kept low, but not at an apyretic point. The action of the drug also varies according as it is given with the daily rise or fall of the fever, and its most marked action occurs when it is given to act with the normal decline. In typhoid fever its effect is also more decided in the latter periods of the fever with the remissions than during the con- tinuous stage. Its power of lowering temperature is also evident during health. The dose is from two to three grains, to be repeated in three or four hours if required. Larger doses of five and seven grains are frequently given when a rapid and decided effect is required. In acute rheumatic fever and painful febrile troubles, as pleurisy, etc., five-grain doses prove very satisfac- tory in reducing the swelling, pain, and fever. As an analgesic in neuralgia and migraine it has not proved as useful as phenacetine and acetanilide. Although its employment is accompanined by fewer unfavorable symptoms, it has not replaced phenacetine, which it most resembles in action, its antipyretic properties being less marked, and as an analgesic it has proved very much inferior. Physiological experiments have proved that forty-six grains will cause death in a rabbit, producing spasms in the posterior, and later in the anterior, half of the body. After death there is found hyperaemia of all the organs, and the heart flaccid and filled with blood-clots. No haemoglobin is found in the urine. Beaumont Small. METHYL CHLORIDE (Monochlormethane). A color- less gas with a sweetish taste and an ethereal odor. It is soluble in one-fourth its volume of wTater, much more so in ethyl and methyl alcohol, and freely in ether and chloroform. The gas is not very inflammable; when ignited it burns with a greenish flame. At a temperature of -13° F., or under a pressure of five atmospheres, it is converted into a liquid, with a specific gravity of. 9915, neutral to test-paper. This liquid boils and becomes a gas at a temperature of -5.8° F., the change of con- dition being accompanied by the absorption of a great amount of heat. On account of the rapidity of this change an intense degree of cold is produced, amounting to a fall of 40° or 50° F. or more. The use of this refrigerant action was applied by De- bove, in 1884, as a local anaesthetic for neuralgia and other painful affections. It has been used in sciatica, pruritus, spinal pains after railway accidents, and in the painful joints of rheumatism, and in pleurisy. The dura- tion of relief from pain is never prolonged or permanent; from one hour to three or four hours is the average. In the latter conditions the relief has not been satisfactory, and any such use is beyond the scope of the remedy. The most important application of this compound has been as a freezing mixture for the performance of minor surgical operations. It has been used with decided suc- cess in circumcision for phymosis, evulsion of toe-nails, excision of cancer of the lip, opening of mammary ab- scess, incision for empyema, and many similar painful procedures. Methyl chloride is very extensively used for this purpose in the Paris hospitals, where it is prepared and stored in specially formed flasks, resembling those in which nitrous oxide is supplied. These are so arranged that the spray may be made to issue as required, without any trouble or waste. A stream of the spray may be applied directly to the part, in an oblique direction, for one or two seconds, or it may be directed upon a tampon of wool which is sur- rounded by floss silk and covered by thin silk. The tampon becomes saturated with the liquefied gas, which rapidly evaporates and absorbs heat from the adjacent parts. This latter method is more suitable for the relief of pain ; for operative purposes the spray is to be desired. The first effect on the part is to render it pale and blood- less and insensitive ; a continuance of the cold produces a dried, parchment-like appearance, and this is the time to operate. The application of the spray must be guarded, as it is not without its disadvantages. If it is used too long it causes death of the part, with vesica'tion and es- chars according to the depth and extent of the injury. Frequently, where the action has been only of short du- ration, the part remains red and tender for several days, Dr. S. E. Berezovsky made a number of experiments upon dogs to determine the local effect of the spray. They showed that, 1, a spray of two minutes' duration, when directed against intact integuments, produces com- plete anaesthesia lasting from fifteen to twenty seconds, the tissues remaining sufficiently soft to allow cutting; 2, a spray of five seconds' duration, while inducing a somewhat longer anaesthesia, freezes the skin to an in- convenient degree ; 3, a seven-seconds spray gives rise to consecutive local congestion and inflammation ; 4, a twenty-seconds spray causes sloughing of the tissues down to the muscular layer ; 5, a convenient and harmless anaes- thesia, induced by a two-seconds spray, can be easily pro- longed up to five minutes by repeating the spray at short intervals ; 6, sufficient anaesthesia of exposed bones can be produced in the same way ; 7, the spray does not cause either gangrene or thrombosis of blood-vessels. Methyl chloride is a decided improvement upon ether spray as a means of producing local anaesthesia, but it has a powerful rival in the recently introduced ethyl chloride, which is milder in action but equally efficient. The disadvantage of methyl chloride is its powerful and rapid action, which is difficult to control both in extent and degree. It has also been suggested as an anaesthetic, and a mixt- ure of ether and chloroform, saturated with the gas, was suggested by Richardson, but no advantage was apparent, and it has failed to receive much recognition. Beaumont Small. METHYLENE BLUE (Tetra - methyl-thionine Chlo- ride). An aniline derivative, its formula being (C8H3N- (CII3)aCL)2NS. Chemically pure methylene blue occurs in small indigo-colored scaly crystals, with a bronze-like tinge and dark green in transverse fracture. Slightly soluble in water, forming a deep blue solution, which is changed by sulphuric acid to a dark green, and from which a strong potash solution throws down a dark violet precipitate. The methylene blue of commerce (ethylene blue O) is a double chloride of zinc, and tetra- methylthionine. This aniline product was introduced into medicine in 1890, by Drs. Ehrlich and Lippmann, as an analgesic of some value. Professor Ehrlich had investigated the action of the drug on nervous tissue as a staining reagent, and had demonstrated that it had a peculiar selective action on the axis cylinders of motor and sensitive nerves. Further experiments showed that when taken into the stomach, or introduced subcutaneously, it rapidly spread throughout the system and gave relief to all neurotic pains, and the pain in rheumatism of the muscles, joints, and tendons. A two per cent, solution was used, by means of which one grain was given hypodermically. It was also used in capsules, the powder being given in doses of 1| to 4 grains ; as much as fifteen grains were given in one day. No ill effects accompanied its administration, and no change in appetite, digestion, pulse, or any of the nor- mal functions. The drug was absorbed very quickly, and a quarter of an hour after the smallest dose the urine be- 631 Metliyleue Blue. Microscopy. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) came a bright green, after two hours a dark green and after four hours a dark blue. No albumin was present. In the saliva a bluish tinge was detected, but there was no discoloration of the mucous membranes or conjunc- tiva. The anodyne effect began in about two hours, and was gradually produced; it had no effect on any fever or inflammatory condition. When administered in full doses it is liable to produce symptoms of strangury and increase the amount of urine, for which powdered nut- meg has been used with success in Germany. Other ob- servers have found it of value in nervous headaches, herpes zoster, alcoholic depression, migraine, and in the pleuritic pains of tuberculous patients. Doses of 2 to 5 grains have been given three times a day. In the following year, 1891, Ehrlich and Guttman an- nounced that the drug was also a remedy for malarial troubles. They were led to experiment upon this dis- ease from the fact that the plasmodia of malarial disease was readily stained by this body, not only in prepared specimens but also in fresh blood. They used the remedy in two cases of malarial fever-one quotidian, the other tertiary. They found that the drug had a decided cura- tive power over the disease ; the periodical attacks ceased within a few days, and at the end of eight days all plas- modia had disappeared from the blood. A dose of 1| grain was given ten or twelve hours before the expected attack, and repeated every two hours until five doses had been taken. The treatment should be continued for seven or eight days after all malarial symptoms have subsided. Other European observers have reported the results of a trial of this remedy, generally with less bene- ficial results; its action was uncertain and frequently failed. It, however, produced a cure in many instances with different observers, and proved particularly useful iu neuralgic pains of a malarial origin. Laveran experi- mented with it without obtaining any success. He injected it into the blood of pigeons affected with the luematozoon, and although the color was seen in the blood no effect was exercised upon the parasites. He also treated two patients affected with the disease, without in- fluencing the paroxysms or destroying the malarial or- ganism. Dr. W. S. Thayer, in Jolins Hopkins Hospital Bulletin, May, 1892, gives a detailed report of seven cases treated by this method. He concludes that-1. Methylene blue has a definite action against malarial fever, accomplish- ing its end by destroying the specific organism ; but it is materially less efficacious than quinine, failing to accomplish its purpose in many cases where quinine acts satisfactorily. 2. Reaction appears to be rapid, the chills disappearing on the temperature, in remittent cases, fall- ing to normal during the first four or five days; but later, however, if a sufficient number of organisms have resisted the drug, they appear to develop again directly under its influence, causing a return of the symptoms. 3. Methylene blue seems to have no advantages over qui- nine which would warrant its further use. Methylene blue has also been given in tuberculous con- ditions. In pulmonary phthisis a dose of 1| grain was given the first day, increased on the second day to 3 grains, on the third day to 4£ grains, and so on until 24 grains were given in the twenty-four hours. The usual improvement of symptoms is said to follow its use. In tuberculous pharyngitis the powder may be applied to the affected part, and in scrofulous glands of the neck, and for irrigating empyemic cavities a ten per cent, so- lution has been used. A solution of the same strength has also been recommended in diphtheria. Beaumont Small. METHYLOL. This compound is the dimethylate of methylene, CH2(OCH3)2. It was first prepared by Mala- gati. in 1839, and suggested as an anaesthetic. Its use as such has not been adopted on account of its rapid evapora- tion, and its less agreeable effects than chloroform and ether. It is prepared by distilling a mixture of methylic alcohol, sulphuric acid, and peroxide of manganese ; the product is formiate of methyl and methylol. By agitating this with caustic potash the formiate of methyl is de- stroyed without attacking the methylol. It is a limpid, very mobile liquid, specific gravity, .855, with a burning, aromatic taste. Its odor is penetrating, and recalls that of chloroform and acetic ether. It dissolves in three parts of water, in alcohol, ether, and the fixed and volatile oils. It boils at 107.6° F. and its vapors are not inflam- mable. It has recently been introduced as an hypnotic. Its first effect is a transient period of excitement, followed by a deep and quiet sleep. It augments the heart-beats, slightly lowers the blood-pressure, and causes slower and deeper respirations. It leaves no bad after-effects. It is advised in all cases of insomnia and restlessness due to cerebral anaemia or inanition, and is contra-indicated in cerebral hyperaemia. It has been suggested that its hy- podermic use is superior to other methods of administra- tion-one and one-half minims in ten minims of water- but this has been found to prove irritating. The dose is from fifteen to thirty minims, which may be increased to one or two drachms ; it is very pleasantly combined with syrup of orange-flower and water. It has been employed extensively as a soporific in men- tal diseases, and found to be very useful in all condi- tions, except the commencement of simple mania. A tolerance is established, if its use is persisted in for any length of time, and the dose must be increased or the med- icine stopped for a few days. It has also been found of service in the insomnia of delirium tremens. Professor Richardson found it of service in angina pectoris, when combined with amyl nitrite, in the proportion of nine parts to one. It lessens the rapid action of the amyl ni- trite and prolongs its effect. It has been found to relieve the spasms of strychnine poisoning ; its antidotal action is of no value if large quantities of the poison have been taken, but it is said rather to hasten a fatal termination under this condition. It is used as a local anaesthetic in the form of an oint- ment-one part to six of almond-oil in simple cerate. Beaumont Small. MICROCIDINE. An antiseptic preparation introduced by Dr. Berlioz, of Grenoble, which is prepared by add- ing to fused naphthol-beta half its weight of caustic soda, and allowing the mixture to cool. It should contain seventy-five per cent, of naphtholate of soda, the remain- der consisting of mixed naphthol and phenol compounds. It is a whitish powder, soluble in three times its weight of water, yielding a brownish solution. It is a powerful antiseptic, very slightly toxic, is not caustic, and does not injure instruments or clothes. It is said to be weaker than sublimate, but is ten times more powerful than phenol, and twenty times more powerful than boric acid. A solution of three parts to the thousand is used as a lo- tion and to prepare dressings. Under its influence, ul- cers and suppurating wounds heal quickly, and disagree- able odors are checked. A solution of the same strength may be used for irrigating the bladder, uterus, and sup- purating cavities. It may be employed as an internal remedy in doses as high as thirty grains a day. It does not produce any irritating effect. The urine is rendered strongly anti- putrescent, its action being similar to that of salol, but less irritating to the kidneys. Beaumont Small. MICROSCOPY, CLINICAL. This article is intended to supplement the article "Microscopy, Clinical," by Dr. George Wilkins, Vol. IV., p. 775. As a large num- ber of staining methods, etc., for bacteria are described in the articles " Histological Formulae, etc.," and " Bac- teriological Technology " (in the present volume, pp. 77 and 424), the reader is referred to these for further infor- mation. Microscope and Accessories.-Bacteriology forms so important a factor 'n clinical medicine that a micro- scope provided with some sort of sub-stage condenser and homogeneous immersion lens has become indispensable. Wide-angled dry lenses, such as A A and DD Zeiss, on account of their" superior illumination, are gradually re- placing those with narrower aperture. For clinical work 632 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Methylene Blue. Microscopy. the expensive apochromatic objectives are not neces- sary. With the increasing demand for accuracy of methods, the habitual use of the micrometer, camera lucida, polar- iscope, microspectroscope, etc., is becoming more general. A rack-and-pinion coarse adjustment and mechani- cal stage are very convenient adjuncts in working with high powers. In selecting a mechanical stage, one which can be manipulated by the left hand alone is to be preferred. Of nose-pieces (revolvers), one with sockets for three lenses should be selected when both bacteriological and anatomical work is to be done, as then some combination of lenses like AA, I)D, and Homog. will suffice for all purposes without having to change objectives. Microphotography has not yet become sufficiently sim- plified to be of much use in clinical work. It is prefera- ble to have a separate microscope stand, with sliding nose- pieces, constantly set apart for this work alone, and kept always ready for use, as the amount of time required in adjusting and centering the apparatus before a single negative can be taken is greater than that required to photograph a dozen different objects when everything is in readiness. Light.-None of the substitutes for daylight, so far available, can be considered satisfactory, but the incan- descent light, the electric light, the albo-carbon light, or the use of a blue glass screen sufficient to neutralize any excess of yellow rays, renders working with artificial light less fatiguing to the eye. lieagent Bottles.-The dropping-bottles recently intro- duced, where a pipette stopper is ground into the bottle and fitted with a rubber cap, cannot be too highly recommended for con- venience and cleanliness (Fig. 424). Labels.-Small sheets of gummed paper, which can be cut or torn into any shape or form desired, effect a great saving of time and trouble as compared with ordinary labels. Forceps.- The blunt-pointed, self-closing, forceps, devised by Cornet, are extremely convenient for working with cover-glass preparations. With these it is impossible to lose track of the smeared side of the cover slip (Fig. 425). Reagents.-Fixing and Hardening.-For giving accu- rate results, two fluids are specially to be recommended : 1.-Alcohol in the strength of ninety to ninety-six per cent., and 2.-Flemming's fluid, made by mixing 4 parts of two per cent, osmic acid solution, 15 parts of one per cent, chromic acid solution, and 1 part glacial acetic acid. This fixes in two to four days, when, after thorough washing in water (five to twenty- four hours with frequent changes), harden- ing can be completed in alcohol. Corrosive sublimate in a saturated watery or alcoholic solution also gives good results, but does not penetrate deeply into the tis- sues. Pieces of tissue to be treated by Flem- ming's solution should not be more than one-twelfth of an inch thick. The use of bichromate solutions is to be avoided where the structure of nuclei is to be studied, as these become materially altered in solutions like Muller's fluid. Section Cutting. - Sections may be cut fresh in the freezing microtome, in which case it is best to avoid the use of gum, etc., for embedding. The sec- tions can be received in one-half per cent, salt solution, and either examined unstained or else placed for one to two minutes in Loeffler's methylene blue, washed, and mounted in glycerine. To fix the blood in tissues the specimens should be thrown into boiling water for a few seconds previous to freezing. It is better to keep a (SUPPLEMENT.) small microtome specially for cutting frozen sections than to use the freezing attachments furnished with the sliding microtomes. For obtaining sections of hardened tissues, a sliding microtome of the Thoma-Jung or Weigert-Schanze model is necessary. Those made by Bausch & Lomb are cheap, and give excellent results. For sharpening microtome knives the attachment fur- nished by Jung will be found invaluable to those who (like the writer) have not naturally the gift of sharpening instruments. By having the razor blade mechanically held at a proper angle, no one, however unskilled, can fail to sharpen his knife satisfactorily. Fig. 426.-Attachment for Microtome Knives, by which the blade is held at a constant angle while stropping. (Jung.) Under proper conditions, sections of tissue only 10 to 15 p in thickness should be obtained at each cut. When time is of value, the tissue, after a few hours' hardening in strong alcohol, may be clamped between pieces of hardened amyloid liver or elder pith, or, bet- ter still, glued to a cork by Meyer's glycerine jelly. This is prepared by mixing 1 part of gelatine, 2 parts of water, and 4 parts of glycerine, over a water-bath till thoroughly dissolved. Take a lump of the jelly as large as a pea, melt it upon the blade of a hot knife, and after transferring to the surface of a cork, press the tissue to be cut into it. As soon as the surface hardens place in absolute alcohol for a few hours. This method is prefer- able, as a rule, to the use of the freezing microtome, when a few hours' delay is admissible, as fixed tissue stains far better than fresh, and the definition of the nuclei is much sharper. For delicate tissues, or very thin sections, embedding in paraffine or celloidin should be employed. (See " His- tological Formulae, etc.," Supplement, p. 424, and " His- tological Technique," vol. iii., p. 658.) In staining specimens the method of staining each sec- tion or series of sections upon the slide has come into very general use. A few drops of the (filtered) dye are poured upon the slide and allowed to remain until under a low power the nuclei can be distinctly seen as deeply colored points. Then, after washing with water, a few drops of absolute alcohol are allowed to remain for a few seconds in contact with the section, and then replaced by a few more. In this way the section becomes dehy- drated in less than a minute, and can be clarified by drop- ping on a little xylol before mounting in xylol-balsam. Should the xylol produce turbidity, it is due to the fact of some moisture being still present, and alcohol must again be dropped on. With complete dehydration af- ter treating with absolute alcohol the section may be rapidly dried with blotting-paper, and xylol-balsam ap- plied at once, omitting the step of clarification. With picro-carmine apply a drop of glycerine without wash- ing the section. By carrying out the staining on the slide itself all unnecessary handling of the specimen is avoided, and time is saved. With sections cut in paraffine it is well to first attach the section, still in paraffine, to the slide (or cover-glass) by smearing on the thinnest possible film of a filtered solution of equal parts of egg-albumin and glycerine, (which may be kept indefinitely in a stoppered bottle by adding a small piece of camphor). On the slide, or cover-glass so prepared, the section is spread out with a soft brush. By heating the slide for a few seconds over a flame or water-bath, till the paraffine is seen to melt, the albumin will be coagulated and the section will ad- here firmly to the glass, and can be manipulated with the same ease as cover-glass preparations. Staining can only be accomplished after removing the paraffine by xylol followed by alcohol and water, in the following order: (1) xylol, (2) alcohol, (3) alcohol again, (4) water, (5) stain. Sections cut in celloidin can be fastened to the slide by simply pressing upon them firmly with folded filter-pa- Fig. 424. Dropping-bottle with Rubber Cap for hold- ing Reagents. Fig. 425. Cornet's For- ce p s for Cover - glass Prepara- tions. 633 Microscopy. Microscopy. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) per. When a series of sections has to be attached in a definite order, a slide should be first coated with a thin layer of collodion and allowed to dry ; then the sections, moistened with alcohol, are placed in position and are partly dried with blotting-paper and covered with a sec- ond layer of collodion, the section thus lying between two layers of collodion. A useful method of obtaining very thin (1 to 5 sections from objects embedded in paraffine, is to coat the surface of the block with a layer of thin collodion just before each section is cut. This thin film of collo- dion will prevent even the thinnest and most brittle sec- tions from falling to pieces. The methods mentioned above for paraffine and collo- dion have long been practised in connection with normal histology and embryology, but are only now beginning to be appreciated by pathologists. Examination of Blood.-The estimation of the per- centage of haemoglobin present is a point which should never be neglected in connection with the microscopic examination of blood. The haemoglobinometer or hae- mometer of von Fleischl has come into very general use, owing to its simplicity as compared with those of Hayem and Malassez. In estimating the amount of haemoglobin the cell is filled with water, and one of the small capillary pipettes, filled with blood, is mixed with the water on one side of the partition in the cell. The col- ored glass plate is then moved until when beneath the uncolored half of the cell it gives the same depth of tint Hamatokrit.-Daland (Univ. Med. Magazine, March, 1892) has described a method of estimating the volume occupied by the corpuscles and deducing their number from this. He employs a centrifugal machine. The blood, diluted with an equal volume of 2.5 per cent, bi- chromate of potassium solution and thoroughly mixed in a watch-glass, is drawn into a glass tube 35 mm. long and having a calibre of 1 mm. The tube is closed at each end by a rubber cap and rapidly rotated until the mass of cor- puscles which collects at the periphery attains a constant volume (with the above solution a constant volume is reached after about ten thousand revolutions, requiring about seventy seconds' time). The tube is scaled in fifty parts, and therefore to ex- press the volume of corpuscles in percentages, it is neces- sary to multiply the number shown on the scale by four. The volume per cent, in normal blood is 51.6 for red, and one per cent, for white corpuscles, making the value of each volume per cent, about 100,000 red cells, so that 51 x 100,000 = 5,100,000 per cubic millimeter, a number corresponding closely to that obtained by means of the haemocytometer. Ehrlich's Method.-A new method of examining blood is that of Ehrlich, based upon the affinity for basic and acid anilin dyes, of certain minute " granulations" found in the colorless corpuscles. The blood must be spread in a very thin film upon cover-glasses, and fixed by heating at a temperature of 120° C. This is best at- tained by using a flat brass bar placed over a petroleum oil stove, and, when a constant temperature is attained, placing the cover-glasses a little nearer to the flame than the point at which a drop of water is found to boil. To give good results, heating for from one to twTo hours is necessary. The writer has employed a mercury bath upon which the cover slips are floated, the temperature being controlled by means of a thermometer. In staining, Ehrlich at first employed a solution com- posed of aurantia, indulin, and eosin, each 2 grammes ; glycerine, 30 grammes ; but the stain he now recommends is composed of saturated watery solution of orange, 125.0 ; concentrated solution of acid fuchsin in twenty per cent, alcohol, 125.0. Mix, and add alcohol, absolute, 75 ; sat- urated watery solution of methyl green, 125.0 (Biondi's reagent). As the action of this stain is very variable, and as it is very difficult and tedious to obtain the right proportion of each dye, it is advisable to obtain it ready made, either in powder or solution, from Grubler, of Leipzig, or from his agents, Eimer & Amend, New York. The staining is complete in from two to five minutes, when the superfluous dye should be washed off, the cover- glass dried with blotting-paper, and the specimen mount- ed in xylol balsam. In a successful specimen the nuclei are stained greenish, the red corpuscles orange, the eosin- ophilic granules red, and the neutrophilic granules violet. As the results of the stain are uncertain and depend upon the exact temperature at the time of fixing, it is best to lay several cover-glasses on each side of the line which represents the boiling-point on the heated bar, in which case some of the specimens are sure to turn out well. Ehrlich has described five forms of granulations found in blood which have each a specific staining reaction. They were named empirically at first as a, ft, 7, 8, and e granulations, but the only ones having pathological sig- nificance for human blood are : The a or oxyphilic granulations, which have affinity for acid anilin dyes, such as eosin, acid fuchsin, or picric acid. The 7 or basophilic granulations, analogous with those found in plasma cells (Mastzellen). These stain with basic anilin dyes. The e or neutrophilic granulations, which stain of an intermediate tint in a mixture containing both acid and basic anilin dyes. This form is the one most abundant in normal human blood. The ft or amphophilic granulations represent an ill- marked form intermediate between a and 7; the 3 granu- lations, a transitional step between 7 and e. Fig. 427.-Von Fleischl's Haemometer. as the diluted blood ; the reading on the scale then gives the percentage of haemoglobin. The light used should be gas or petroleum, not daylight. The instruments usually record a little too high, but are accurate within about ten per cent. Aimore exact and scientific method would be to deter- mine the intensity of both the red and the yellow tints separately in the blood, by the use of standard tints (Lovi- band's scale), as is done in water analysis, but no appara- tus has yet been contrived for this purpose. Graeber has arranged the following table as giving the diagnostic results of blood examination, but it is looked upon by other observers as being too arbitrary : Haemoglobin. Number of red cells. Diagnosis. Reduced. Reduced. Simple anaemia. Reduced, Normal. Chlorosis. Reduced, but increased rela- Greatly re- Pernicious tively to number of red cells. duced. anaemia. Poikilocytosis and occurrence of nucleated red cells is commoner in cy togenic than in secondary anaemias but may occur in all forms of anaemia, leucocytosis, or leukhaemia. 634 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. microscopy. microscopy. In blood the following forms of colorless corpuscles occur : 1. Lymphocytes, 7 to 9 in diameter, about the size of red-blood corpuscles, with relatively large nucleus and small surrounding protoplasm. They resemble the white cells of the lymph glands, from which they are probably derived. They contain no granules. 2. Polynuclear leucocytes (neutrophiles), diameter double that of the lymphocytes ; somewhat smaller than the mononuclear leucocytes; nuclei irregular in form, curved, S-shaped, or multiple; protoplasm filled with fine neutrophilic granules. Derived from bone-marrow. 3. Mononuclear leucocytes ; larger than those last named ; nucleus large, round, or oval. No granulations. 4. Eosinophilic leucocytes (eosinophiles); of same size or larger than the polymorphous neutrophilous nucleus ; round or polymorphic. Protoplasm filled with coarse eosinophilic granulations. Derived from the bone-mar- row. Normal blood contains the above-mentioned varieties in about the following proportions (Erlich) : Lympho- cytes, twenty to thirty per cent. ; polymorphic or neutro- philic leucocytes, sixty to seventy-five per cent. ; mono- nuclear, six per cent. ; eosinophilic, two to four per cent. (From 100 to 1,000 leucocytes should be counted in each case.) In addition, a few transitional forms are seen having a polymorphic nucleus, but with non-granulated protoplasm. As far as has yet been determined the pathological significance of these cells is that- 1. In simple leucocytosis, or in leucocytosis accom- panying the severe secondary anaemias following large losses of blood or other exhausting discharges, the num- ber of white cells is simply increased, both absolutely and relatively to the red, without any marked disturbance in the relative proportions between the different forms of leucocytes. 2. In lymphatic leukhaemia the lymphocytes prepon- derate. 3. In splenic and splenic-myelogenous leukhaemia, there is no absolute increase of the lymphocytes, whose proportion, relatively to the total white cells, may fall to one or two per cent. Great absolute and relative increase of polynuclear forms. Great absolute but little or no relative increase of the mononuclear and eosinophilic leu- cocytes. 4. In purely myelogenous leukhaemia, great increase in eosinophile cells. 5. In splenic and myelogenous leukhaemia a special form of mononuclear cell appears, known as the myelo- cyte. This is larger than the ordinary leucocyte, and is filled with fine neutrophilic granules. It does not possess the power of amoeboid movement. 6. In all forms of leukhaemia, and in both primary and secondary anaemias, the red corpuscles may show, besides diminution in number, irregularities in size and form (poikilocytosis = increased plasticity), and nucle- ated red corpuscles may be present. Erlich's method is admirably adapted for demonstrating nucleated red cells. 7. In slight degrees of splenic myelogenous leukhaemia, and during the remissions which occur during the prog- ress of the disease, the condition may be diagnosed with certainty by (a) the relatively small number of lympho- cytes, and (b) the presence of myelocytes. There are now some bacteriological grounds for sup- posing that leukhaemia is an infectious disease due to a specific micro-organism. When the blood is simply examined in the fresh or unstained condition it should be spread in the thinnest possible layer by using a perfectly flat slide and very thin cover-glass, and examined with a -fa immersion lens. The presence of rouleaux of corpuscles shows that the film of blood is too thick to be of service. A very good account of the application of Erlich's method is given by Dr. W. S. Thayer,* of Johns Hop- kins University. (SUPPLEMENT.) Biondi has introduced a special method for examining blood in sections. He recommends collecting a few drops of blood in 5 c.c. of a two per cent, osmic acid solution. After twenty-four hours the supernatant fluid is withdrawn by a pipette and the sediment embedded in liquefied agar-agar (five per cent.), which, after solidify- ing in a mould, is hardened in eighty-five per cent, alcohol and cut in the microtome. For staining, Biondi's reagent (see above) is suitable. Malaria.-For the detection of the plasmodium ma- lariae Plehn recommends fixation of the cover-glass prep- arations in absolute alcohol for a few minutes, and stain- ing in concentrated aqueous methylene blue solution, 60 c.c. ; one-half per cent, eosin solution in seventy-five percent, alcohol, 20 c.c. ; distilled water, 40 c.c. ; add 12 drops twenty per cent, caustic potash solution. The flagellate forms are stated to be stained by this method. Laveran's method is as follows : The cover-glass is fixed by heating in the usual way, and stained first in a saturated watery solution of eosin, which is then dried off with blotting-paper, and a saturated solution of methy- lene blue allowed to act for about one-half to one minute. The flagellate forms do not stain well. By either of the above methods the parasites are stained blue and the blood-cells pink. Care must be taken to avoid mistaking precipitation of the blue pig- ment in the red cells for the endoglobular parasites. Some clinicians with large experience in the diagnosis prefer the direct examination of unstained specimens under a immersion lens to the staining methods (Osler, Celli). A striking feature in these unstained specimens is the very pale anaemic condition of those red cells which contain the parasites. The method of making microscopic observations at body temperature by surrounding the microscope by a. water-jacket having a glass front, which has recently be- come very general in laboratories, is simply a modifica- tion of a method in use by Sachs, many years ago (Fig. 428). Sputum.-Tubercle Bacilli.-Of the large number of new methods published in the last few years, probably the most satisfactory is that known as Gabbett's method, by which the decolorizing and counter-staining of the specimen is combined in a single act by the use of a solution of two per cent, methylene blue in twenty-five: per cent, sulphuric acid. After staining with Neelsen's carbol fuchsin (fuchsin, 1 ; alcohol, 10 ; carbolic acid, 5 ; water, 100), putting a few drops of staining fluid on the cover-glass and boiling it, by holding directly over a low flame for one-half to two minutes. The cover-glass, is dipped in the acid methylene blue for one-half to one minute, washed, and examined. Although it is claimed that this method is practically the same as that of B. Frankel, who decolorized and counter-stained simulta- neously in a mixture of methylene blue, alcohol, and ni- tric acid, I have found that the Gabbett method invariably gives clean preparations free from granular precipitate, while Frankel's method does not do so. The contention of Czaplewski, that fluorescin dissolved in alcohol or oil of cloves tended less to decolorize the tubercle bacilli than the treatment by alcohol, has been shown by Nut- tall to be erroneous. Nuttall * has devised an extremely ingenious and accu- rate method for estimating numerically the number of tubercle bacilli in sputum, but, unfortunately, the details and precautions to be observed are so numerous as to prevent it from being applied for ordinary diagnostic purposes. McFadyean and others recommend, where the bacilli are very scanty, that the film of sputum should be smeared upon a glass slide, instead of a cover- glass, as a larger field for examination is obtained in this- way. The writer has found this modification of con- siderable service. When only a very few bacilli are present the sputum should be liquefied either by Biedert's method of boiling with soda, or by allowing it simply to putrefy till quite fluid and then examining the sediment. ♦Johns Hopkins Hospital Bulletin, 1891, and Boston Medical and Surg. Journal. 1892. ♦ Johns Hopkins Hospital Bulletin, 1891. 635 Microscopy. Microscopy. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Heart failure Cells.-In sputum of persons suffering from heart disease, with red induration of the lungs, E. Wagner has described as heart-failure cells certain large epithelioid cells containing brown haematin granules, and whose presence is significant of chronic pulmonary con- gestion, with dilatation of the capillaries. Recently other writers have made observations showing the diag- nostic value of this sign. Although undoubtedly of service in establishing the fact of organic pulmonary change, when they can be found, the general utility of this phenomenon as a means of diagnosis is greatly dimin- ished by the fact that it is impossible in nine-tenths of the cases of chronic heart disease to obtain any sputum at all. Leprosy.-In cases of genuine leprosy a scraping from a leprous nodule, or a drop of blood from it, is invariably found swarming with enormous numbers of the lepra bacilli, which take the stain characteristic of the tubercle bacillus. There is no danger of confounding this condi- tion with lupus, as in the latter disease the bacilli are ex- tremely scanty or may be entirely absent. The value of microscopic methods alone in the detec- tion of tetanus, glanders, and diohtheria is limited, as (SUPPLEMENT.) still uncertain, owing to the want of uniformity in the observations of different independent observers. Urtne.-The recognition of casts, blood, etc., in the urine has been greatly facilitated by the introduction of Litten's centrifugue. A small test-tube filled with uriue is rapidly rotated for Fig. 429.-Litten's Hand Centrifuge. about two minutes, at the end of which time the sedi- ment will be found collected at the bottom. Where a deposit is very scanty the sediment of a quantity of urine may be collected by using tubes having a small con- striction near the bottom. After rotating, so as to drive the sediment into the bulb at the bottom, the fluid in the upper part of the tube can be poured off, replaced by fresh urine, and again concentrated. The original con- tention that bacteria could in this way be collected from urine has not been found to be the case. The recognition of tubercle bacilli in urine can be ac- complished by the ordinary fuchsin and staining meth- ods, but is very difficult when a small number only are present. F.eces.-The recognition of the amoeba coli has proved of great service in the diagnosis of tropical dysentery. This organism is found not only in stools, but in ab- scesses forming in different parts of the body, especially in the liver. Councilman and Lafleur, in a case of severe anaemia, without any intestinal symptoms, found enor- mous numbers of amoeba coli to be present in the stools. An important medico-legal bearing of the examination of faeces was recently brought out by Austin Flint, who, in a case of murder, where the interest centred on the question as to whether stains found on the clothing and beneath the lingers of the suspected criminal were de- rived from ordinary faeces or from the contents of the small intestine, proved the latter to be the case, by de- monstrating the presence of bilirubin and tyrosin, which are normally found in the small intestine, but become decomposed in their passage through the colon. The detection of typhoid bacilli in the stools has been found too uncertain and difficult to afford a sure indica- tion of typhoid fever, even where culture methods are employed. The detection of the cholera spirillum in the stools of acute cases can sometimes be made by the microscope alone, as this organism may be present almost in pure culture in the small, flocculent particles which occur in Tig. 428.-New Form of Warm Stage (Lautenschliiger's), regulated by means of a thermostat. the microscopic characters in these are not of themselves sufficiently distinctive to enable the diagnosis to be made with certainty, and culture methods must be employed. Quite recently peculiar organisms have been described as occurring in typhus by Hlava, and other authors have described monad and coccidia forms in scarlatina, measles, small-pox. and syphilis, but their significance is 636 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Microscopy. Microscopy. the rice-water evacuations ; but of course for scientific accuracy the use of culture methods is always necessary. From the parallel arrangement of the comma bacilli Koch found (Zeitsch. f. Hyg., xiv., p. 319), in his labora- tory, that a microscopical diagnosis was possible in fifty per cent, of the cases. In no instance was this shown to be erroneous by the result of the cultures. Sporozoa in Malignant Tumors.-Besides the or- ganism found in the blood of malaria (see above), lowly organized animal forms were found by Darien associated with Paget's disease of the nipple and molluscum conta- giosum. The pathological significance and the precise posi- tion which these organisms occupy in the animal kingdom are not yet decided, in the absence of culture methods. Cancer has been staled to contain sporozoic-like or- ganisms, but their nature and significance are still a mat- ter of dispute. For their detection sections should be prepared from tissues fixed in alcohol or sublimate, and stained with logwood and eosin or by anilin dyes, prefer- ably saffranin. In sections fixed in Flemming's solution good results are obtained by Biondi's reagent. Examination of Tissues.-The microscopical diagnosis of the tissues obtained at operations or autopsies has be- come an important part of clinical microscopy. In addi- tion to the examination of teased specimens, sections pre- pared by the freezing microtome form the chief means of diagnosis. In recognizing parenchymatous degeneration it is im- portant to distinguish it from the granular appearance which is simply the result of post-mortem changes, and, as pointed out by O. Israel, the differential point to be at- tended to is the fact that the cell elements are swollen (cloudy swelling, but different from that observed as post-mortem change) and increased in size. Virchow has recently called attention to certain patho- logical changes which can only be recognized with cer- tainty by the use of the microscope. They are as fol- lows : 1. Diffuse fatty metamorphosis of the interstitial cells in the brain, spinal cord, and nerves. 2. Parenchymatous and fatty metamorphosis of the muscles, heart-fibres, kidney, liver, and the parietal cells of the peptic glands. 3. Fragmentation of the heart muscle. This forms an extremely common and hitherto unrecognized alter- ation, which directly accounts for sudden death in a large number of cases. It can be best recognized in rather thick sections, either fresh or hardened in Muller's fluid. 4. Ganglion-like swelling of the nerve-fibres. Best recognized by drawing out the nerve-fibrils from their sheath and examining either directly in water, or in glycerine, after fixing in one per cent, osmic acid. 5. Calcification of the ganglion cells. Recognized by the presence of highly refracting, lumpy, angular, or rounded masses, which dissolve in weak mineral acids, with the evolution of gas. 6. Fat embolism of the lungs and kidneys. Recog- nized either by examination of fresh specimens, which can be prepared by snipping out small portions of the tissues with scissors, or better, by cutting sections of the tissues, after hardening twenty-four hours in Muller's fluid to which one-fourth bulk of osmic acid has been added. 7. White hepatization and red induration of the lungs. Recognized by the filling of the alveoli with small round cells in the first case, and by the presence of brownish haematin pigment in the walls of the alveoli in the lat- ter. 8. The early stages of proliferation of the tissues. Rec- ognized by the increase in the number of nuclei, espe- cially the swelling of the endothelial nuclei of capilla- ries. 9. Slight degrees of amyloid degeneration. Recognized in sections by red reaction with methylene violet, or by a brown stain when iodine solution is employed. In addition to these microscopical features the ex- amination of tissues, fluids, etc., for bacteria, by both staining and culture methods, is often of very great im- portance. In many cases of otherwise unexplainable (SUPPLEMENT.) death the fatal issue is caused by septicaemia, due to the presence of one form or another of the septicaemia organ- isms (occasionally of the bacillus coli communis) in the blood. This auto-infection by bacillus coli is common in the later stages of both acute and chronic exhausting dis- eases, especially in those affecting the intestinal tract. Thrombosis.-The presence of thrombi in the capil- laries, with or without hyaline degeneration of the ves- sel walls, is a matter to which, recently, much pathological significance has been attached. The occurrence of the so-called liver-cell thrombi, detected first in the vessels of the brain by J urgens, afterward in the smaller ves- sels of the liver by Klebs, is a phenomenon the ex- planation of which is by no means clear. It has been looked upon as explaining the fatal issue in cases of eclampsia. Rabies.-Babes has recently stated that a rapid micro- scopical diagnosis of rabies may be made by cutting sec- tions of the nerve-tissues which have been hardened in alcohol for several hours. The appearances considered by him to be characteristic consist of swelling of the nerve- cells, granular condition of the protoplasm, enlargement of the endothelial cells, and the occurrence of capillary ecchymoses. Although in the hands of an expert accus- tomed to histological examinations of rabic tissues, these appearances may be sufficiently striking, it is doubtful if the observations of ordinary microscopists, on this head, could be received with confidence. In any case, the in- oculation methods should not be omitted, and diagnosis by the microscopic appearances alone should only be resorted to where the material at disposal has been re- ceived in spirit. The rapidity of the process, by which the diagnosis is completed in the course of a few hours, is, of course, a great point in its favor compared with the delay and uncertainty of inoculation. Frozen sections of fresh brain or cord may be fixed by leaving for one hour in pure piridin (Goodall). In the diagnosis of tumors which have been extirpated a chemical reaction has been described which appears of value. This consists in smearing the tissue with strong nitric acid, which causes connective tissues to swell up and become translucent, ■while epithelial tissues become an opaque yellowish-white color. As in this way in- filtration of carcinoma in muscles, etc., can be definitely established in the course of a few moments without any microscopic examination, the method should be of valu- able assistance to surgeons in extirpating cancers. Sar- comata do not show the characteristic reaction. The diagnosis of decidual remnants in cases of sus- pected abortion is a matter of considerable importance. The villi of the chorion, when present in their typical branched form, with clump-shaped extremities, are highly characteristic. Sections of suspected tissues may show large, flattened endothelioid cells with distinct round nu- clei. The diagnosis of malignancy of tumors from the mi- croscopic examination of small portions excised, is a matter which should always be undertaken with consid- erable caution. Although such fragments are usually sent to pathologists for diagnosis, far more valuable re- sults could be obtained if the examination were made by those in charge of the case, as the signification of the mi- croscopic appearances often depends more on the rela- tions of the parts than on their histological type. In cases of suspected squamous carcinoma (epithelioma) it is well to bear in mind that, on the one hand, infiltration of the epithelial cells into the deeper interstitial tissues is not pathognomonic of epithelioma, but also occurs at the margins of lupoid ulcers ; and, on the other hand, cases of malignant epithelioma occur, in which, in the early stages, no deep infiltration of epithelium has taken place. Butlin insists that chronic ulcers, occurring about the mouth, in which the surface is covered with squa- mous epithelium, should be regarded as malignant and treated as such. The writer had the opportunity of ex- amining a case wdiere the tongue wTas excised for a sus- picious ulcer in a very early stage, and where, out of some hundreds of sections from all parts of the growth, none showed deep infiltration of the epithelium, though 637 microscopy. military Hygiene. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. the patient subsequently died from secondary epithelioma commencing in the submaxillary gland. Klebs insists upon the diagnostic importance of dilated lymphatic spaces in the submucosa beneath the epithelial layer for the diagnosis of cancer of the larynx. Cornil is less inclined to place reliance, in the case of ■specimens obtained for diagnosis from suspicious ero- sions of the uterus, upon the relation of the epithelial tissue to the deeper parts than upon absence of the base- ment membrane, which he considers to be highly char- ■acteristic of carcinoma. In order to place reliance upon the absence of the basement membrane or the arrange- ment of the cells, however, it is necessary that the por- tions of tissue should be placed, immediately after re- moval, in strong alcohol and well hardened before cutting, as a delay of a few hours will so alter the appearance as to make an accurate diagnosis impossible. The study of the cellular changes, especially the mi- totic appearances of tumors, though of great interest, does not afford any reliable information as to the malig- nancy or otherwise of the tumor ; possibly in the future, by great care in the employment of proper methods of fixation, our knowledge of the microscopic appearances ■of cells may become more extended. Literature.-Out of a large number of works on medical microscopy which have recently appeared, the older standard works of Peyer, Friedlander (edited by Eberth), and Bizzozero still hold their place. Von Jaksch, " Klinische Diagnostik ; " Klemperer, " Grun- -driss der Klinischen Diagnostik;" v. Kahlden, "Tech- nik der Histologischen Untersuchungen," and Ranvier, " Technique d'Histologie," may be mentioned as among the best productions of the recent literature on the sub- ject. Behrens, " Hilfstabellen ftir Mikroskopische Ar- beiten," and the latest edition of the " Microtomist's Vade-Mecum," contain valuable recipes, embracing all the common formulae. For details of the bacteriological methods, special works upon the subject should be con- sulted. On the subject of the blood, besides the imposing monograph of Hayem, which contains over one thousand pages, shorter monographs have been written by Graeber and von Limbeck. The publications of Erlich, especially the collection of reprints entitled " Farben-analitische Untersuchungen zur Histologie und Klinik des Blutes," presents, in a compact form, a good deal of information upon its author's peculiar methods, which was formerly very widely scattered. Unfortunately this work is not yet completed. Most of the important literature upon medical microscopy, however, still lies scattered through the medical and microscopical periodical literature. Wyatt Johnston. MILITARY HYGIENE. The principles of military hygiene have undergone no change during the last six years, but there have been some modifications of its ap- plication to United States troops which deserve notice here and consideration by those who may be intrusted with the care of State troops and of armies yet to be raised. Some points omitted in the original paper may also be stated. Clothing.-Duck.-The issue of white cotton-duck sack-coats, trousers, and overalls is now authorized as uniform in extreme Southern latitudes in summer, at the discretion of department commanders. The anticipated theoretical objections to the use of cotton do not seem to have been realized, and the increased comfort to the men by the relief from the oppressive woollen is a sanitary ad- vantage. But light mixed woollen and cotton underwear should accompany cotton uniform. The effort to have authorized a dust-colored uniform, one-third wool and two-thirds cotton, should be encouraged for those regions where long-continued high temperature enervates. Collars.-Among the disadvantages of tight collars, sometimes worn in uniform, is the very serious military one of affecting the vision through disturbance of the cerebral circulation. This is not apt to occur frequently, but it should be guarded against as a possibility. Leggings of brown canvas duck, to be worn on the march or in campaign, are now required for all foot (SUPPLEMENT.) troops. Their utility in a prolonged campaign is yet un- proved. The disadvantages are those of extra pieces of clothing to be looked after, a slightly additional weight, and, particularly, difficulty of adjustment, especially when most required, in wet and mud. When tight enough to remain in place, they are liable to be too tight and to cause the feet and ankles to swell. Cotton and light canvas wrinkle into bands, and light leather be- comes harsh after wetting. Boots.-All mounted troops spend more time on foot than in the saddle, and in this country cavalry will doubt- less, as heretofore, continue to fight much dismounted-to be veritable dragoons. The cavalry boot is only suitable for the horseman when mounted, for it is apt to chafe in walking. The comfort and efficiency of the cavalry would be increased by substituting for the boot a shoe, with a heavy detachable leg and stiff brace, to be worn only when mounted. Barrack Shoes.-Shoes with canvas uppers are now is- sued for barrack use. They are much lighter and more comfortable for this purpose than the marching shoe. Carriage of Weights.-As set forth in Vol. HI., the transportation upon his person of the clothing and accessories necessary for the independence of the modern soldier in the field has only been accomplished with great personal discomfort and fatigue, and by the expenditure of so much vital force as seriously diminishes his effec- tive strength. An equipment devised by Colonel Mer- riam, Seventh Infantry, practically solves the problem. By it rations, underclothing, extra ammunition, and blanket can be conveniently carried by one piece of equi- page, without constriction of the chest or of the arm-pits. The weight is supported by the hips, with some assist- ance from the collar-bones, and there is practically no pressure upon the back, and absolutely none upon the breast. Numerous actual trials have demonstrated its efficiency, and there can be no question as to the practi- cal value of this device, and its great superiority over the official blanket-bag. But it has not yet been formally adopted, and experimental issues continue to be made. A very recent device of Lieutenant Dodge, Twenty- fourth Infantry, to support the blanket-roll, havresack, and canteen, is a flexible wooden strip to which the roll is lashed. It passes over the shoulder and rests against the opposite side, as the blanket would. The presumed ad- vantage of this wooden support or yoke is that it very slightly interferes with motion, and that its elasticity takes all pressure from the chest and back. Where the curve passes over the collar-bone, a leather strap, like that used on a crutch-head, takes off the rigid bearing. How far it will comply with the conditions of active service is yet undetermined. Trial samples are to be issued. Food.-The unwritten custom of the service that served three meals a day in garrison, is now formally recognized in the regulations. The Quartermaster's De- partment now supplies certain cooking utensils and table furniture, thus relieving for food money formerly di- verted from the company fund. A greater improvement has been the abolition of the post fund (Vol. III., p. 755), and the direct division of the profits of the bakery between the various companies, in proportion to the num- ber of flour rations turned into the bakery by each. This releases the ration from an indirect tax for articles other than food. Bread.-The standard ration of bread remains at eigh- teen ounces, where fresh vegetables can readily be ob- tained. But it may be increased to twenty-two ounces by post commanders, on the recommendation of councils of administration. Fresh Vegetables.-A recent law adds one pound of vegetables to the ration, an allowance ample for all sani- tary requirements. This may be issued as 100 per cent, fresh potatoes ; or, 80 per cent, fresh potatoes and 20 per cent, fresh onions ; or, 70 percent, fresh potatoes and 30 per cent, canned tomatoes or other vegetables. No savings from these are purchased by the Subsistence Department. Partly on account of their bulk, and partly from their perishable nature, there will be great difficulty 638 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Microscopy. Military Hygiene. in the actual issue in campaign or under adverse climatic conditions ; that is to say, just when most needed will be the greatest risk of failure. But the recognition of their importance and the attempt to supply them consti- tute a sanitary advance. In receiving canned tomatoes it is to be remembered that the contents of the so-called two- and three-pound cans fall short of their nominal weight. Vegetables shrink about ten per cent, in cooking, ex- clusive of waste. (Theese.-Cheese is no longer supplied as an alternative part of the travel ration. It is, nevertheless, recommended as an occasional addition by purchase to the mess table. Beef.-The beef ration is estimated as the raw issue. There is a waste of 5 per cent, in cutting up the carcass, and a shrinkage of about 25 per cent, in cooking. Beef should be killed twenty-four to thirty-six hours before issue in temperate, and eight to ten hours in hot cli- mates. Bad and Diseased Meat.-Decomposing meat should not be eaten, although some abnormal palates and edu- cated digestive organs regard it as a delicacy. Diseased animals ordinarily should be condemned as food, but such emergency issues may be made in the prolonged absence of other meat. Cattle dead of the rinderpest and horses dead of glanders have repeatedly been eaten with impu- nity. But it is essential that such meat be thoroughly cooked, and it is much safer that all the blood be drained. Tuberculous meat and milk may affect the consumer ; but it is probable that actinomycosis, a less communicable disease, is often mistaken for the former. Animals with malignant pustule are always dangerous, and their car- casses should be burned, not buried. Beef and pork may communicate tape-worm, and pork, trichina, when im- perfectly cooked. Thorough cooking of all doubtful meat is very necessary. Sausages and meat-pies some- times become toxic from the development of a substance not yet isolated ; and hash prepared over night in warm weather, and stale mixed dishes, are liable to induce intes- tinal disorders. Baking and Cooking.-To Bake Bread.-In the field, portable ovens will probably be used for large commands, but baking will generally be done by company.cooks for brigades or less. Flour grown on soil deficient in lime may make bread that, after rising well, becomes heavy and sour on cooling. The use of strong lime-water in making-up such dough corrects this defect. Of the various methods of baking in the field, the simplest is to fill a small hole in the ground with a wood fire, and when this has thoroughly burned out to place therein, on a stone, a mixture of flour, salt, and water, covered with a tin plate and surrounded by hot ashes. Unless the heat is kept below 212° F. the bread will be tough. Or, two mess-pans may be taken and the rim of one be cut down all round, so as to leave a jagged border. Fill the cut pan two-thirds with dough, and invert over it tlie perfect pan. Place both in a hole eighteen inches deep, where a wood fire has burned several hours and from which all the embers except two or three inches have been removed. Cover them with hot ashes and with earth, and leave them five or six hours. The rough edges of the cut-pan allow the gases to escape. To Cook Meat.-For boiling, the piece should be as large as possible and be plunged in boiling water, to re- main five or ten minutes. This coagulates the albumin in the outer layers and thus retains the inner juices. As at above 170° F. the meat would become hard and indi- gestible, the temperature of the water should be reduced to 160° F., and the meat should remain in it fifteen min- utes for every pound of its own weight. Baking, which is not roasting, as it is ordinarily called, is treating meat exactly similarly to boiling, and for the same reasons, ex- cept that a dry heat is used. In frying, so called, the slowly heated fat exudes acids, generally injurious, that envelop the particles of meat with an indigestible coating. Stewing, properly conducted, is admirable. Small pieces of meat should be kept for about two hours in a little water at not far from 134° F. This partly ex- tracts the juices, keeps the albumin semifluid, and en- (SUPPLEMENT.) riches the accompanying liquid which must be served with the meat. Stewing is the exact opposite of boiling or baking, both in theory and practice. For cooking or baking in the field, the Buzzacott field-oven is well adapted for company use. Habitation Sites.-Soils to be avoided are those that hold moisture. Granite and the metamorphic rocks are usually healthy. So are clay slates, but drinking- water will be scarce. Deep gravels, unless dominated by adjacent ground, are always healthy ; and gravel hil- locks are the best of all sites. Sand, when pure and deep, is healthy, but such a site soon becomes charged with refuse, which passes through it laterally as well as per- pendicularly. Water is sometimes held by clay under dry sand and becomes hurtful. Clay and alluvium are generally suspicious from the contained moisture, but well-cultivated soils, rice-fields excepted, are desirable. Topographical Sites.-Enclosed valleys, ravines, or the mouths of ravines, any ill-drained grounds, the neigh- borhood and especially the lee of marshes, the northern side of mountains or high hills, and in warm latitudes the northern banks of rivers, are to be avoided. Vegetation in Relation to Sites.-Close-lying grass, kept well trimmed, is always healthy. Rank vegetation should be cut in the heat of the day and be burned be- fore decay; but the soil should not be disturbed, nor heavy brush near a marsh. Belts of trees and tall shrubs are a barrier against malaria, but decaying vegetation is harmful. The eucalyptus by its evaporating power an- tagonizes the production of malaria in frostless climates, and the sunflower guards against it in others. Trees break cold winds in cold climates, and cool the ground in hot climates ; they are hurtful only when they cut off the light and air from a domicile, making it dark and damp. Quarters.-Ordinary houses when used as quarters may be estimated to accommodate, in rooms fifteen feet wide, one man to the yard in length ; in those between fifteen and twenty-five feet in width, two men ; in those more than twenty-five feet wide, three to the linear yard. Marches.-The latest drill regulations abandon " com- mon" time, and require the " double" step to be 36 in- stead of 35 inches. Unless otherwise directed, all move- ments are in " quick " time, at the rate of 120 steps, 30 inches in length, a minute. Water-Supply for Military Purposes.-In the field, on halting for camp, the water-supply should be immediately protected against waste, against pollution, and against the turbidity that follows trampling the margin into mud. The less the supply the greater the care, and an officer should be in charge when the quantity of water is disproportionately small. In the case of a small spring the supply will be increased by digging it out and sinking a barrel or other casing. In a shallow stream immediately create a small reservoir for drinking by a temporary dam, with one lower down for the horses and one still lower for washing. When the camp is per- manent and the supply relatively small, preserve the water that flows by night in reservoirs, conduct the over- flow into a succession of half-barrels, all connected by little gutters to avoid waste, for the horses, and detain the surplus in a still lower reservoir. Horses drink better and more rapidly when the water is five or six inches deep, each horse taking about a gallon and a half at a time and requiring three minutes for drinking. If allowed all they will drink they consume six to eight gallons a day, according to season and work, and about three gallons a head is needed for grooming and police. On the march a man requires for drinking and cooking six to eight pints a day, according to climate, and an equal amount for washing the person. In barracks the allowance should be ten gallons a head for all purposes except water-closets and baths; with these, twenty-five gallons. The foregoing are minima figures, requiring to be increased in hospitals by several times as much, de- pending on the character of the cases. Ice.-The sources of domestic ice-supply for military posts, as for other settlements, should be carefully se- 639 Military Hygiene. Military N urging. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) lected and guarded ; for water by no means parts with all its impurities in freezing. > For the special discussion of sewers and the disposal of waste water-supply, disinfection, the avoidance of dis- ease in permanent posts, and similar subjects that affect civil as well as military life, reference must be made to the papers devoted to them. But it is always to be borne in mind, and to be impressed upon commanding and other officers, that deodorants are not necessarily disin- fectants, or that to replace one bad smell by another rarely antagonizes the poison that may sap health. Es- pecially are those in control to be taught that polluted water is practically without remedy-that the only safety is in keeping the water-supply inviolate. Alfred A. Woodhull. MILITARY NURSING.-In military practice the nurs- ing of the sick is placed in the hands of privates of the hospital corps. These soldiers are either transferred to the hospital corps after one year's service in the line, or they may be enlisted from civil life and instructed for a short period in one of the two schools of the hospital corps before being sent to the various army hospitals for duty. By these methods there is secured for nurses a body of men who have been disciplined by a military training, and who are thus supposed to be fully alive to the neces- sity of subordination to authority and implicit obedience to orders. These soldiers when received into the hospital corps are entirely ignorant of the duties of a nurse, and they must be instructed by lectures, demonstrations, and ac- tual experience in the ward. This combination of military instruction and training school for nurses re- sults in methods of nursing somewhat different from those found in civil life. In the theoretical rules for nurses in time of peace there can be no difference in civil and military practices, but it is more in the details that changes arise. Many of these changes are due to the peculiarities of military life, as, for instance, the ne- cessity of having the nurses under complete control in case of active service in war, or in time of epidemics. In such times service must be compulsory, for it is not practicable to depend on nurses volunteering in the cause of humanity, as would be the case in civil life. This ar- ticle will not deal therefore with things common to the two, but will be confined to pointing out the differences, where such may be supposed to exist. The matters to be discussed will be presented under the following head- ings : 1, The Nurses ; 2, The Management of the Ward ; 3, The Management of the Patient; 4, Nursing in the Field. 1. The Nurses. Qualifications.-Before a man can be transferred to the hospital corps he must have the following qualifications : He must have served at least one year in the line, must desire the transfer, must be unmarried, under forty years of age unless he is a good cook or nurse, must be in good physical condition, of good habits, and possess a good character ; be able to read and write, have good general intelligence, and an aptitude for his duties, and must give assurance that he intends to serve out his full five years of service, and not seek his discharge beforehand, in any of the numerous ways now available. The pay of the private of the hospital corps is eigh- teen dollars per month, which is five dollars higher than that of a private in the line, and his money allowance of clothing is that of a corporal. This inducement of slightly increased pay and allowances should be the means of getting a very good class of nurses, particularly as the above restrictions are thrown around the matter of transfer in order to exclude undesirable men. The constant instruction that these men receive is slowly but surely building up a good class of nurses, notwithstand- ing the frequent changes by discharge and re-enlistment. Should all the plans in this direction prove successful, the United States soldier, when sick, should receive the con- stant supervision of trained nurses whose efficiency should be excelled by none in civil life. The military nurse is a soldier, and as such is subject to all the rigid discipline of military life. This has its advantages as well as its decided disadvantages. Such discipline enables the surgeon to exact the most punctili- ous attention to the details of nursing and the execution of orders, under penalty of court-martial for neglects and disobediences. Every physician knows how advanta- geous this is in certain critical cases where he is desirous of having his plans carried out to the letter. In such cases where the faithfulness of the attendants is not aboye sus- picion, the physician's anxiety is far greater than it should be. If the nurse can be depended upon, there is no doubt that lives are often saved where it is a mat- ter of good nursing. There is a bad side to the discipline which exacts an implicit obedience to orders. The private soldier is us- ually under someone's orders, and has all his thinking done for him. This course of life undoubtedly weakens his independence of thought and action in emergen- cies. He is too apt to be on the lookout for orders, and unless some are forthcoming he may be entirely at sea. Modern methods of military instruction are trying to overcome this by teaching each soldier his individual importance in battle. On the same plan, the instruction in nursing aims partly to undo the results of the disci- pline that turned the man into a machine. The nurse is taught to observe his patients closely, watch for unfavor- able signs, think for himself, make frequent reports to superiors, and to prepare the way for changes of treat- ment his teaching tolls him have been made necessary by the change of symptoms. In civil hospitals when a nurse proves himself to be unfitted for his duties by reason of inappropriate tem- perament, viciousness, or incorrigible stupidity, he can be unceremoniously discharged, but not so in military life. Courts-martial are extremely conservative, fight shy of all innovations, and not being composed of medical officers they are difficult to convince in the matter of the offences of nurses. The disadvantage of military custom in this respect cannot be avoided and must be tolerated. Thus it happens that not infrequently improper nurses are retained when their absence from the hospital would be more desirable than their presence in it. The military nurse has the same kinds of difficult, fatiguing, and disagreeable duties as in civil hospitals, and must possess the necessary qualifications of good health, patience, forbearance, kindness, and great self- control. Truthfulness, honesty, habits of punctuality and order, and the ability to work according to a sys- tem and not hap-hazard, are also important, as well as the ability to keep secret his confidential knowledge of the patient's private affairs. Many of these qualifications are brought out and strengthened, if not generated, by the military training which every military nurse receives before his transfer to the hospital corps. Not every man has the temperament necessary for a good military nurse. Nervous and excitable men are entirely unfitted for such work in any hospital, either civil or military, because they worry and excite the patients by their manner, and they may do irreparable mischief. The sanguine, hopeful man is unfitted for military nursing because he is too apt to be depressed by misfortunes, rebuffs, thoughtless and unjust reprimands from immediate superiors, and the thousand and one annoyances inseparable from military life. He so loses heart under adversity that he will neglect highly im- portant duties while suffering from these annoyances. The man of phlegmatic tendency, whose sensibilities are not too acute, and who is hard to excite, comes nearer to the ideal nurse than the others. He is not especially an- noyed by the most exasperating circumstances, and is cool and collected in times of excitement. In military practice the surgeon is often unable to obtain professional assistance of other surgeons. It is absolutely necessary for him to have skilled assistants in operations that are not only exceedingly difficult, but made far worse by the adverse surroundings of military life. The nurse must be relied upon, and for this reason the lectures and other instruction to the hospital 640 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Military Hygiene. Military Nursing. corps must go much further into the details of the theory and practice of medicine and surgery than is usually deemed necessary to qualify nurses for work in civil life. Though military custom steps in to prevent any marked confidences between surgeons and nurses, and though there is an official barrier between the two that cannot be broken down, yet it is true that the surgeon must be brought much closer in contact with the men under his orders than is the case in the line. This close rela- tionship comes from the necessity of the surgeon receiv- ing from the nurse confidential reports of the patients, their actions, symptoms, and conversation. Soldiers are very apt to malinger for the purpose of escaping duty or of obtaining discharge from the service and subsequent pension. Of course they will hide everything they can from the surgeon ; but the nurse, from his intimate asso- ciation with the patients, learns the true state of affairs, and is often depended upon for true reports. The sur- geon must know the truth in these matters, for upon his report depends in great part the action taken in each case, as to compelling the malingerer to do his full duty. In other cases false reports may have been the cause of such action on the surgeon's part as will result in great injustice to a worthy soldier. It will be impossible for the surgeon to be informed, unless he can induce the nurse to feel that there is a confidential relation between them that is necessary for the proper performance of duty. The nurse must therefore be sufficiently intelli- gent to be able to hold such relations without detriment to himself, the surgeon, or the United States service. From all that has been said it can easily be under- stood why so much is expected from a military nurse, and why such great efforts are made to obtain a desira- ble class of men. The pay and allowances, including board, clothing, lodging, free medical attendance and medicines, are the equivalent of about $55 to $60 per month to a city laborer in civil life. This is not small pay when it is considered that the Government has taught the man his trade whereby he earns this amount. Never- theless the actual money allowance, $18, is not great enough to attract that high class of men which the fore- going shows would be the ideal army nurse. Duties.-The nurse in charge of the ward of a military hospital in peace times has numerous duties to perform, some of which are purely military, while others are police duties requiring him to keep the ward and every- thing connected with it in a cleanly and orderly condi- tion. These duties are exactly the same as those of sol- diers of the line as far as the barracks are concerned, and the nurse is supposed to go about these duties without special instruction. Beyond his military duties as a soldier, and his combined duties as a room orderly and in charge of the ward, there are his more important duties relating to his care and treatment of the patients. These duties as a nurse are the most responsible, and therefore the most important ones he has to perform while on hos- pital duty. In the field, and occasionally in the hospital, he may have the important duty of rendering first aid to the sick and wounded in emergencies during the absence of steward or surgeon. The necessity of having efficient men who can perform these two duties of nursing and giving first aid, is one of the most important reasons for the establishment of the hospital corps. It is just as im- portant for the wounded soldier to be attended by trained nurses as it is for wounded civilians, and the army, in this respect, is following directly in the path of civilian practitioners, who have long ago found out the necessity of having elaborate training schools for the special in- struction of nurses. Instruction.-A system for the higher theoretical in- struction of army nurses has not yet been completed, as sufficient time has not yet elapsed to see how much can be done in the short period of service. The nurses are apt to leave the service at expiration of the period of en- listment and not return. If two or even three years of constant instruction are requisite to make a thoroughly competent trained nurse, it is evident that as soon as the army nurse becomes proficient his services are lost. Nevertheless much good work can be done, and there is no reason why the military nurses should not in time be- come as proficient as any others. The instruction is by lectures on elementary anatomy, physiology, the rules of hygiene, and such knowledge of medicine and surgery as will enable the nurse to perform efficient emergency or first aid service. Then there are series of lectures on such topics as the observation of symptoms, thermometry, temperature charts, pulse, ad- ministration of medicines, counter-irritants, disinfect- ants, preparations for surgical operations, the giving of anaesthetics, instructions in special diseases, and indeed the large number of topics usually found in the man- uals for the theoretical instruction of nurses. In times of peace it is not possible to give nurses the varied prac- tical experience that is desirable, but it is found that they learn quickly and remember fairly well the methods used in each case attended. Every opportunity is seized to impress upon them any practical points in nursing each case, and many medical and surgical cases serve as material for clinical instruction to the whole detachment of the hospital corps present. The military nurse is not expected to be expert in methods of massage, of giving inunctions, fumigations, electrical applications, baths, and kindred special sub- jects, although they may be included in a general way in the system of instruction. The cases requiring such special treatment are too rare to give sufficient practical experience. When a case does occur, special inst ructions must be given to the nurse in charge of the case. He is taught the importance of his duties by explana- tions of cases in which it is not so much the medical treatment as it is the careful attention to the patient's wants, and efficient nursing, that carries the patient through his illness. It is also sought to impress on him the high professional attainments he is expected to acquire, if he is to be depended on to assist the surgeon in different operations in certain circumstances already mentioned. There is a threadbare proverb, which is repeated with nauseating frequency by military men, " In times of peace prepare for war," and to no one is this any more applicable than to the military nurse. In peace he has ordinary routine cases, with but little to do, but he may be aroused from this with startling suddenness. An Indian war may arise, and he find himself loaded with work, with far more patients to look after than he ever imagined, and it is necessary, therefore, to have his work so well systematized that he can do the greatest good to his sick and wounded charges. The system that is aimed at in the above instruction should be so designed as to be applicable to the sudden emergencies when each hos- pital is loaded down with wounded. Women are more careful and tender in their attentions to the sick, and on that account are said to make better nurses than men. On account of woman's instinctive tact, which is the knowledge of what to do for the sick and how to do it, there is not so much written or said on this part of the subject of nursing as might be. It is all left to her instincts. Now, female nurses cannot be obtained for army hospitals, and indeed in small hospitals where all kinds of cases are put in one ward, the presence of women would be undesirable, and per- haps quite indelicate. The army nurses must, therefore, be men, and not being possessed of those instincts of gentleness and sympathy with sufferers that go so far to make the sick well, or rather hasten their recovery, they must try to make up for their deficiencies by careful attention to all the little details of nursing that come so naturally to women, and which, taken all together, go to make up what is called a good nurse. In times of war, where large numbers of sick and wounded are collected into immense hospitals, there can be a separation of cases, and in the majority of wards women can be admitted to perform all those necessary attentions to the sick, leaving the male nurses in charge of the wards free to devote their time and energies to the general manage- ment of the cases and the performance of those duties that the women cannot do. In times of peace and in small hospitals the privates of the hospital corps must 641 military Nursing. military Nursing. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) themselves in as perfect a condition of health as possible. Particular care is necessary in the case of nurses who in times of epidemics are apt to be closely confined and much overworked. People who are called upon to nurse near relatives who are prostrated by illness usu- ally make a very great mistake by supposing that they are doing the greatest good by giving unremitting atten- tion to the patient's condition and none to their own. They usually break down, and then there are two pa- tients to be taken care of instead of one. The nurse can do the greatest good to his patients by attending to his own health. In a general way it may be said that he should avoid all excesses, either of eating, drinking, exercise, or anything else; he should cultivate the most regular hours and try to get a half hour or hour's exercise in the fresh air every day. The last direction is of great im- portance, for although the ventilation of wards is made as complete as possible, it can never be made perfect, and the inmates are sure to breathe air that is impure to at least a slight extent. A drunken spree so lowers a man's vitality that he is extremely liable to contract the diseases with which he comes in contact. This lowered vitality and the expos- ure to cold during the drunkenness fully explain the great prevalence of pneumonia among drunkards, and its mortality. From a medical standpoint it cannot be said that a very small amount of alcohol does any par- ticular harm to a man in ordinary employment, but for a nurse, whose health should be perfect without any stimulants, it can be truly said that a small amount, usu- ally called " moderate drinking," is very apt to do him harm, and on the score of his health alone he should be a total abstainer. If he attends cases of a contagious disease, his total abstinence may be his salvation by aid- ing him to escape infection. Of course this refers to his conduct when off duty. When on duty, even the slight- est drinking can never be tolerated. But on or pff duty there are various other reasons that make it impossible to tolerate drinking in a nurse. If but slightly under the influence of liquor he is too dangerous to have near the sick, for he is liable to make very serious mistakes. If he is addicted to drink, no liquors can be placed in his care, and he is useless from this point alone. It is therefore a rule in civil or military hospitals to discharge as soon as possible any nurse who is found to have been drinking while on duty. If he gets drunk while off duty, he is too undesirable to be re-enlisted. Sleeping Rooms.-In civil hospitals it is a recognized principle that the nurse should not be compelled to spend all his time in the sick-room. He must have hours out of doors, and, most of all, he must have an entirely sep- arate sleeping apartment. Perfect health is supposed to be incompatible with any other arrangements. Upon this principle it is now the rule to have in military hos- pitals a dormitory or barrack-room to be used by the members of the hospital corps. The small number of patients that require attention at night does not necessi- tate the detailing of a night nurse. Consequently it has become the usual custom for the day nurse to sleep in the ward, an objectionable custom that can scarcely be obviated with the present arrangements. learn to do all. The instruction of the army nurse must therefore include such matters, pointing out as well as a man can, the humane thoughts and feelings which prompt women to do those things which are so grateful to the sick. In peace or war the army hospitals do not fall into that serious error sometimes seen in civil hospitals, of placing women nurses in complete charge of men's sur- gical wards. This error comes from the natural swing of the pendulum of public opinion, for when the training of women nurses became popularized, nothing would do but that the women should take full charge, even of cases that their modesty and sense of decency forbid them to touch, which they could uot attend to, and which were therefore neglected, often to the serious detriment of the patient. Men must be in charge of men's wards, let the women assistants be around as thick as bees if they want to. To depend on refined women to uncover men and inspect dressing of the groin for instance, to see that everything is undisturbed, is entirely out of the question. Personal Appearance.-A nurse should always be neat and clean in appearance. It would seem unnecessary to call a soldier's attention to this fact, yet it is unfortu- nately true that occasionally a nurse has to be warned that his personal appearance is enough to make a well man sick, and a sick man worse. If the nurse is clean and neat he certainly has an effect for good upon the pa- tients he attends. If his hands are dirty, and his cloth- ing dirty or disorderly, and in this condition he hands patients their food, or in bad cases feeds them, they are apt to be nauseated by the presence of so much dirt near their food, and thus recovery may be interfered with. In hospitals where there are many patients in one ward, one nurse cannot do all the work, and therefore scrubbers and helpers do all the cleaning up and the heavy work generally, leaving the nurses who come closest in contact with the patients freer to keep them- selves as clean as possible. In small military hospitals the nurse in charge of the ward must do all the work, and he must, therefore, exert special care to keep himself clean. After doing any work that would soil his hands, he should hasten to clean them, even if he do this dozens of times each day. By carefully arranging his work a nurse may manage to do at one time most of his dirty work of cleaning up the ward, and thus save himself much unnecessary trouble. In such small hospitals where one man does all the work of a ward, it is found by experience that his hands and finger-nails are not in the condition that makes perfectly aseptic surgery possible, if he is to handle instruments and dressings. This state of affairs gives considerable worry to the sur- geon who is compelled to exert himself to avoid even the slightest possibility of wound infection, and he is further compelled to attend to many details which in civil hos- pitals are looked after by the nurses. The habits of cleanliness which are instilled into sol- diers as a duty come to the nurses' aid as far as personal cleanliness is concerned, and make it easier for them to comprehend the instructions as to the precautions to be observed to prevent infecting themselves or other pa- tients. Nurses are taught to keep and use a tooth-brush, and keep the mouth in as clean a condition as possible. Beards are not worn, as they certainly increase the dan- gers of infection. As a means of furthering personal cleanliness and neat- ness, nothing is better than a white jacket, with or with- out a white apron extending from the waist to the knees. These always look neat, and as soon as soiled can be cleaned. When clothed in them the nurse is car- rying around with him a far less number of disease- germs than if he has on his military blouse that he has been wearing in the ward for several months. A dirty old blouse is a danger in any ward, and it would be far better for each nurse to have white clothing that can be washed as soon as soiled. Care of Nurse's Health.-Everyone knows that a strong healthy man is far less liable to contract diseases than one who is weak and run down in health from any cause. It is therefore important for nurses to keep 2. Management of the Ward. Quiet.-One of the strictest rules for the management of a ward is that referring to quietness and order. No boisterous conduct, loud talking, or disorder of any kind is allowed under any circumstances. This is essential for sick men, who usually require perfect quiet and rest. Now the first step toward accomplishing this must be taken by the nurse. He should never talk in a loud tone of voice, nor should he be noisy in any of his actions. One of the rules in training-schools for nurses is that for- bidding the use of starch in their clothing, in order that they may move around quietly without making a noise that would disturb the patients. Another rule governs the kind of shoes, which must be of such soft material that squeaking noises will not be heard. Now male nurses should remember these two rules, although that 642 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Military Nursing. Military Nursing. referring to starch in the clothing is not applicable to them. As far as the shoes are concerned, there should be no trouble in military hospitals, where slippers are sup- plied for the purpose. When on duty the nurse should use the regulation leather slippers. These permit him to move around at his work without the least noise or dis- turbance that could annoy the most irritable patient he may have. In everything he does, whether cleaning up the ward, sweeping, moving bunks, administering medi- cines, or giving directions to patients, he should keep constantly in mind the utmost necessity for order, quiet, and the general peacefulness of the ward. Visits of Friends.-When people are very sick they are excessively annoyed by the visits of friends, who are well meaning and make their visits under the impression that they are doing good. If the surgeon orders that no one is to be admitted to the sick-room, the nurse understands that such an order is given to protect the patient's life, and that the order must be carried out to the letter. Should an intruder force his way into the ward, and by his presence endanger the lives of patients, by making them worse, he should be ejected by force, if he does not leave when ordered. The nurse is there to protect his patients and preserve absolute quiet and order, and he must do it if he has to exert force. Of course this re- sponsibility is great, and he must never think of using force until he has exhausted other means, and even then he must think whether or not the disturbance would be increased by any forcible means used to stop it. In all cases wdiere it is practicable he should not depend on his own judgment but report the matter without delay. During convalescence the visits of friends may be looked at in an entirely different light. At this time a short visit may be very acceptable, as it introduces a pleasant change into a monotonous life, providing the visitor is an agreeable friend. Should the patient's condition be made worse by such visits, the surgeon will at once forbid re- petition of them for some time. The situation and surroundings of large civil hospitals make it difficult, if not impossible, for intruders to enter the wards and produce disorder ; it is different at military posts where the small hospital may be entered by visiting soldiers. The military nurse therefore has to look after the matter of visits of friends of patients, and must have definite instructions. In small army hospitals it is impracticable to have regular visitors' days as is the case in large civil hospi- tals. Visits of Clergymen.-The visits of clergymen to the sick come under a slightly different rule, as they are priv- ileged visits. As a usual thing the consolation they offer to the sick is decidedly quieting and soothing in its effects, providing, of course, that the patient understands the visit is made merely to help him bear his trials. On the other hand, if the patient imagines that he is in danger of death, the visit of a clergyman may confirm his worst fears and have a depressing effect. It is only in very rare cases, that are chiefly nervous, that the clergyman is ex- cluded along with everyone else. This whole subject is so. exclusively under the control of the surgeon that it may be said to be entirely beyond the sphere of the nurse's duties, except that report should be made if anything goes wrong. As the army chaplain is required by cus- tom and regulations to visit the hospital, the visits are encouraged, and the nurse, no matter what his individual religious opinions are, should make it his duty to show every courtesy possible to all clergymen, and assist in making their visits as profitable as possible. Inspection of Ward.-A hospital ward must be ready for inspection at all times, but as it is a rule in military hospitals to have a rigid inspection of the whole hospital in the morning, the greatest cleaning is done right after breakfast. This morning inspection should never be made the excuse for allowing a ward to get dirty or dis- orderly at other times. A nurse should so fully appre- ciate the importance of his work, and attend to it so w7ell, that there never should be any necessity for an inspec- tion. Temperature of the Air.-The nurse is absolutely re- (SUPPLEMENT.) sponsible for keeping the proper temperature of the room. What this temperature is depends upon circumstances. In windy, cold climates, it may be necessary to keep the temperature up to 75° or even 80° F., but in places where it is calm a lower temperature, 65° or 70° F., may be allow- able even in winter. Rooms full of colored soldiers must be kept warmer than others, for the negro seems to require a higher degree of heat for comfort than a white man. Whether or not this higher temperature is proper cannot now be discussed, but as the sick man must be made com- fortable as the first step towrard recovery, it is allowable to have the room temperature slightly higher to suit the negro. This permission must not be imposed upon and made the excuse for carelessly or deliberately allowing the temperature of a room to rise to such an improper height as 90° to 95° F., as it has sometimes been found. The nurse must carefully study in his wrard the ar- rangements made for regulating the temperatures. There may be heating by means of hot water or steam from radiators in the room. There may be hot-air registers, the air being warmed outside the ward by coming in con- tact with pipes of hot water or steam, or the hot surfaces of furnaces. In all frontier hospitals there are stoves. Whatever method is used, the nurse should thoroughly understand it, and if there are parts beyond his knowl- edge he should ask for information without delay. If the room gets too hot or too cold, he should, by the sim- ple turning of a valve, register, or draught, be able to remedy the defect. Ventilation.-The ventilation of the ward is just as im- portant as the heating. A nurse who does not know how to ventilate his ward and keep the air pure is not efficient. It is not necessary for him to understand and be able to explain all the different systems of ventilation that are in use in hospital wards, but by all means he should perfectly understand the particular system in the ward he has charge of. If there is any part of the sys- tem he does not understand he should inquire of steward or surgeon, and have thoroughly explained the whole apparatus, with its shafts, valves, registers, flues, the reason for the present positions, and the methods of stopping, increasing, or decreasing the flow of air. Care must be taken that the apparatus is not interfered with by patients. Soldiers, whether in ward or bar- racks, will always shut up every opening in cold weather unless they are looked after. Indeed, in some barracks the ventilators are found closed at every in- spection. These are closed on account of cold draughts or a low temperature of the room. In the latter case the fires must be looked after, and if it is found that the stoves will not keep the ward warm without closing ven- tilators, the matter should be reported to the surgeon for his action. The construction of many army hospitals on the frontier, and their small size, make it somewhat diffi- cult to manage the ventilating apparatus. In very cold weather-thirty to forty degrees below zero-no ventilat- ing system yet applied is efficient. In the wooden tem- porary structures much more air can come in through the cracks in the walls than one would suppose, partic- ularly in places exposed to the wind. The defects of the ventilating apparatus are balanced by the defects of the building. Many a nurse may have served a long time and never have noticed any necessity for looking after the ventilation. The nurse is expected to follow the practical rule of noticing, every time he enters the ward from out-doors, whether or not there is a perceptible odor. If there is, some change in the ventilation is necessary. Cold draughts are to be avoided as specially dangerous for the sick. Plumbing.-There should be, and usually are, no plumbing arrangements in the ward, except, perhaps, the pipes carrying gas when that is used for lights. All water-pipes, drains, urinals, wash-stands, and other plumbing arrangements are placed in ad joining rooms, separated from the ward by closed passage-ways. Yet these rooms are usually under the direct care of the nurse, and it is his duty to become familiar with them at 643 Military Nursing. Military Nursing. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. once. It is an easy matter to follow up the pipes and find their uses. In the case of traps in the soil-pipes and drains he should know how they work, how they are cleaned out, and how accidents to them are to be remedied. A little care to these appliances saves many accidents, much inconvenience, and great expense for repairs. The least appearance of foul odors from the drainage system, or anywhere else for that matter, must be reported without delay. It is rare, indeed, to find plumbing arrangements so complicated that an intelligent nurse cannot under- stand their uses and methods of working if he spends a little time and thought on the subject. Amount of Light.-There is but little attention paid to the amount of light in the sick-room, although the sub- ject is quite important and comes directly within the sphere of the nurse's duties. Formerly the sick in a pri- vate house were placed in a dark and ill-ventilated room, under the impression that it was quieter and better. There seemed to be an idea that if it was quiet at night, somehow or other it was the darkness that caused the quiet, and that therefore the darker the sick-room was kept, the better it would be for the patient. As this idea has been exploded for a long time, we find the new ideas reflected in the army hospitals, which are built with a profusion of windows, so that there are no dark places, and light enters on all sides. This throws new duties on the nurse, who has a few points to attend to in regard to the lightness of the ward. While we have shown that darkness is to be avoided, this should not lead to the opposite extreme of making the room too brilliant. Dazzling light is painful to all sick men, and in certain nervous cases, too much light may make them worse. It is, for instance, very wrong to allow the sun to shine in the patient's face, or to turn his bed so that he looks directly at a brilliant white sky. The light must be evenly distributed and not brill- iant at only one place. If the day is dark, cloudy, or rainy, all shades are rolled up and shutters opened. If it is hot, and the sun is shining brilliantly, the shades are all drawn down completely on the light side of the room. Those peculiar days when there are very bright white clouds in the sky are particularly trying to the eyes, and the shades must be drawn down for protection. In the early evening <*fly sufficient lights are kept to give a fairly good light to read by. When patients are very ill and it is deemed necessary to darken the ward in the early evening to favor sleep, the patients who wish to read must go to the reading-room, or, if confined to bed, postpone their reading until the next day. On hot summer afternoons it is quite agreeable to all sick men to have the room darkened for a short time so that they can have a nap-a habit that most old soldiers acquire. At night a dim light is kept burning so as to permit of walking around. A hand lamp is usually kept burning for this purpose, and if patients require attention it can be carried where more light is needed. Army hospitals cannot be fitted up with a sun-room where convalescents can be exposed to the direct rays of the sun. In the rare cases that require such a sun-bath, the nurse must arrange the matter at some convenient window. Many of the instructions given to the army nurse in the matter of the light may appear to be trivial, but much attention should be given to this instruction, be- cause large numbers of the present hospitals are quite un- favorably situated on hot, dry, sandy plains in the West, where the light is very trying to the eyes. Unless these points are emphasized the matter is liable to be neglected. Cheerfulness of the Sick-room.-The army nurse can have little to do toward decorating a ward to improve its general tone as to cheerfulness. A ward is doleful enough under any circumstance, but in military hospi- tals, which are greatly affected by the rigidity and stern- ness of military life, the conditions as to cheerfulness are doubly bad. Nevertheless, the nurse should understand the good to be accomplished by making the room cheer- ful and bright, even though he is not able to carry out the plan in military hospitals. The decoration of sick rooms is carried to its greatest extent in those charitable (SUPPLEMENT.) hospitals devoted to children, who are usually and greatly influenced by their surroundings. These rooms are in certain cases little treasure-houses of such ornamentation as can be made with the little money that is usually available for the purpose. It has its effect in making the little ones almost as happy and contented as though they were well, and this is a great aid in treatment. As sick adults usually relapse into a kind of mental childhood, they are also greatly influenced for the better by cheer- ful surroundings. Cheap prints tacked on the walls, little bits of decora- tion by ribbons or hangings, a small bunch of flowers here or there, and a tasty arrangement of the plain and meagre furniture, are all great aids to the general cheer- fulness. The neatness and cleanliness of the bedside tables must be looked after as directly tending in the same direction. The table-covers are usually towels, and they get soiled quite soon and must be replaced. Little articles on the table must be kept in order and ready for immediate use. Indeed, all the directions as to cleanliness, order, and neatness of the ward, though given with the special view of aiding treatment, have an additional value as enhancing the cheerfulness of the ward. A word or two must be said about growing plants and cut flowers in the sick-room. The subject has caused great discussion as to whether or not it is injurious to the sick. We know that during the daytime growing plants give out oxygen and absorb carbonic gas, just the opposite of what man does. This has been the ground for arguing that they should be kept in the sick-room to help purify the air. It is not generally known that the amount of oxygen given out by the plants that can be kept in the sick-room is so small that in a week it would probably not equal the amount brought in through one good fresh-air register in one hour. On the other hand, during the night-time growing plants often act in the opposite direction, i.e., give out carbonic acid gas and absorb oxygen, and flowers do the same thing all the time. Here, too, the action is so small that it can be totally ignored in a properly ventilated room. When plants are present in too great number they keep out the light of windows and keep the air too moist, and are therefore objectionable, though there can be no reason- able objection to a very moderate number. As far as flowers are concerned, it can be said that an atmosphere heavily loaded with the odors of cut flowers is distinctly and decidedly depressing to sick people, and to well peo- ple also for that matter. A profusion of flowers must be excluded, therefore, under all circumstances. As with growing plants, a moderate amount of cut flowers that does not appreciably laden the atmosphere cannot be objected to -when tastefully arranged in places around the room, but is distinctly advantageous as increasing cheerfulness and brightness. In time of peace the army nurse may not have any occasion to exercise any discre- tion in the matter of cut flowers, but in time of war, in the large general hospitals, a possible occasion might arise. Charitably disposed women make it their duty to keep the hospitals supplied with flowers, and there may be an inclination to carry the matter to extremes, espe- cially in the case of wounded men whose achievements in battle have made them heroes. Special attention to one man by his friends may call for interference. Army hospitals having large wards do not permit of much separation of the sick, who must therefore be pro- tected from everything of a dismal or depressing nature. It is particularly horrifying to be compelled to witness the actions of dying men or the sufferings of one in great pain. Therefore all such cases should be carefully hid- den from view by arranging bed-screens around the bunk. For the same reasons, should a patient die, his corpse should be removed to the dead-house within a few minutes, or as soon as it can be done decently and with- out giving the impression of undue and unseemly haste. No one has the least desire to remain in the same room with a corpse, let alone sleep there. When surgical oper- ations are to be done in the ward, all other patients must, as far as possible, be removed to another room. It will 644 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Military Nursing. Military Nursing. (SUPPLEMENT.} make them worse to be witnesses to anything of the sort. Of course this refers to serious operations, but such things as lancing a boil or dressing a wound are not particularly horrifying, and can be done in the view of the others. Nevertheless, it is a good rule to have the screens ready when anything of that nature is to be done, for this gives a grateful sense of privacy and seclusion to the patient operated on. To most men of a very sensi- tive organization any unnecessary exposure of their per- sons is very disagreeable, and the protection of screens is almost essential. It is just as wrong to give patients the least unnecessary mental pain as it is to give physical pain that can be avoided. The necessity for cheerfulness, neatness, order, and beauty in all the surroundings of sick people is not only the guiding principle in regard to the interior of hospi- tals, but also of their exterior. Wherever it is practica- ble, hospitals are found situated in large, open places, that are filled with trees, growing plants, grass-plots, flower- beds, and symmetrical gravel-walks, and the whole kept in the cleanest and most orderly manner. A special gardener is employed for the purpose when possible, but in the small army hospital a member of the hospital corps must be depended on for this work, and a detail as gardener, to keep the hospital grounds clean and with at least a respectable attempt at flower gardening, is di- rectly within the sphere of his duties. 3. MANAGEMENT OF PATIENT. On Admission.-The military discipline maintained in army hospitals necessitates some change of the rules for the nurse's management of the patients. On admission to hospital the patient is to be undressed and put to bed at once. His valuables, watch, money, etc., are to be given to the steward to be placed in the office safe. His clothing is to be locked up in the closet supplied for the purpose, and under no circumstances should clothing be given to the patient until he is ordered out of bed by the surgeon. If he is dirty he is to be given a bath, if pos- sible, and all his underclothing removed, and hospital clothing supplied in its place. In large general hospitals all the patient's private clothing is immediately sent to be disinfected in the large steam sterilizers built for the purpose, and the parts that need subsequent washing are sent to the laundry. After being cleaned they are packed away until the patient is convalescent. In small army hospitals no such disposition of the clothing is nec- essary, except in rare cases, where a soldier may acciden- tally bring contagious disease into the ward. In that case special instructions as to disinfection will be received. Ordinarily the clothing will be clean and can be locked up at once. As soon as he is comfortably fixed in bed his tempera- ture is to be taken, and note made of any noticeable symptom, such as chill, paleness of face, or difficult breathing. He will then be ready for the subsequent at- tention of the surgeon, and the further attentions of the nurse in carrying out instructions for treatment. Kinds of Attention to Patients.-The kind of service that the nurse should render to the patient depends so entirely upon the degree and kind of illness that but few except the most general directions can be given applica- ble to all cases. Some of the soldiers sick in hospital are so slightly ill that scarcely any attention need be given them-they are fully capable of taking care of themselves. Other patients again are so sick that they cannot do a single thing for themselves. Beyond this there are cases of delirium, or patieftts in a very low con- dition, who not only cannot render themselves assistance but cannot tell their wants, and are so weak that they soil their bedding and clothing by involuntary discharges, and require constant supervision. Between these extremes there are all grades of cases requiring various degrees of care, and it is the intermediate cases which are often troublesome and irritating. As a general thing the nurse is to consider that all the patients are under his immediate care and subject to his orders. This is a great responsibility, for sick men rely entirely upon the nurse. They lose courage, energy, and interest in themselves. They cannot, in severe illness, even think of themselves, all thinking must be done for them, and they must be managed as children. There is an indescribable feeling of perfect security a sick man experiences when he realizes that he is in the hands of a good doctor and a thoroughly reliable and efficient nurse. He knows that he is properly managed, and he begins to feel as contented as possible under the cir- cumstances, and ceases to think of his troubles. These feelings bring with them the restfulness so important to recovery. Cheerful Manner toward Patients.-It is expected of a military nurse to drop any disagreeable air of authority he may have assumed under the false impression that it is military. He is to cultivate that cheerfulness which experience shows is so necessary for the sick. With this cheerfulness there must go an assured manner which tells each patient he is sure to recover. There is a great difference in this cheerful assurance of some nurses as contrasted with the dolefulness and timid- ity of others. Some have such a pleasing manner of doing all things that their very presence in a sick-room is a comfort. As a general rule sick men are made worse by listen- ing to the talk going on about other sick men and the dangers of such cases. This is one of the objections to having many sick people together where the melancholy or the sufferings of a few will make the others worse. Many invalids positively refuse to go to certain health- resorts because of the immense amount of suffering they would be compelled to witness. As far as possible there should be no reference to any such subjects as dangerous and painful diseases. Of course it is impossible for the nurse to stop all such con- versation, because men must and will talk of what is up- permost in their minds, and it would be foolish even to attempt to order them to stop. If the conversation is very evidently jarring on some sick man's nerves, of course it is perfectly justifiable then to order quiet in the ward, or better, report the matter for the steward's or sur- geon's action. It is by his example that the nurse can do the most good. He should never allow himself to discuss these forbidden subjects in the hearing of pa- tients who are still quite ill. The nurse's responsibility in this matter is just as great as the surgeon's, and we know that if the latter would speak in a patient's hear- ing of the dangers of his case, he would do very much harm. In civil practice a gossiping nurse is an abomina- tion, and physicians always refuse to employ her as soon as they find her out, because they know that she does great harm by her imprudent talking. Of course there never should be a word said to a sick man about the ability of the surgeon in charge. Such criticism is entirely uncalled for, and is not only a seri- ous military offence in the hospital corps, but may do actual harm both to patient and surgeon. The nurse is not a doctor, and in his ignorance of what a good doctor really is, he can form only a worthless opinion on the subject. Often it happens that the surgeon is taking the best, and perhaps the only justifiable, course in a case, and because that course does not include some active measures, the patient may have a feeling of being neg- lected. Should this feeling be noticed the nurse's loyalty to his superiors should prompt him to soothe the patient as much as possible. In military practice the attendance of the sick and wounded is purely an official duty, that must be per- formed by a certain person. Consultations are not rec- ognized nor provided for in any way, and a change of physician is, of course, entirely out of the question. The surgeon must see the patient through to recovery. In view of this it is particularly improper for the military nurse to do anything, by word or deed, that would in the least affect the confidence the patient should have in his phy- sician. This loyalty to superior officers must be incul- cated as a part of the nurse's duty, though it is putting up too high a standard to expect it to be always observed. There are tricks in all trades, and it seems to be a uni- 645 military Nursing, military Nursing. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. versal trick to criticise adversely every other man's work. It 'is hard to call in a mechanic in some lines, without having him say that the last work was a botch. Now nurses are prone to do this also by "running down " other nurses. The hospital corps is no place for any such practices, for no good can come of them. If a good word cannot be said of others, nothing should be said. If the soldiers get it into their heads that the nurses are careless and neglect their duties to the sick, the feeling of apprehension of getting worse may do more harm than the surgeon can do good. The nurses should understand this and have enough "esprit de corps " to feel that any disparagement of one reflects upon the others. Confidential Relations of Nurses.-Should a nurse in civil life go to a new engagement and report her experi- ence in her last engagement, divulge family secrets that have come to her knowledge, and make disparaging re- marks about her employers or her patients, she is guilty of a most dishonorable action. She has been admitted to the house and treated as one of the family, and all her knowledge there gained is strictly confidential, and must be as closely guarded as the physician guards what is said to him. Now all this is applicable to the army nurse in every respect. He knows of secrets about patients that the others constantly in the ward do not even suspect, and under no circumstances should he divulge these secrets. To be sure, it is impossible to get much privacy in army hospitals, and for this reason soldiers suffering from dis- eases which they wish kept secret will not come to the hospital, but will take any kind of treatment rather than run the risk of exposure. Now as it is desirable to do the soldier as much good as possible, it depends upon the nurse to aid the surgeon in keeping perfectly secret any confidential knowledge he may have, and try to miti- gate that great publicity and lack of privacy which is inherent to the ward of an hospital. Worst of all, he should never boast of his knowledge of the patients as though he held them in his power. Such boasting is very low, and stamps the man as undesirable in the ward or anywhere near the sick. Nurses have been known to do this, and their influence is always bad. The confidences between a patient and his nurse serve a very useful purpose in bringing to light certain symptoms that would otherwise be hidden. It occasionally hap- pens that sick men, without either rhyme or reason, hold the doctor at such a distance that they are quite unwilling to talk freely to him. They have a false modesty in the matter although they have no hesitancy in talking to the nurse, hoping, and even knowing, that the matter will be at once brought to the attention of the doctor. The nurse thus becomes a medium through which valuable knowledge of symptoms is taken to the surgeon, who may at once act on this knowledge, and by tactful talk- ing to the patients sweep away their unnecessary reserve and get a full and complete grasp of their cases. The above is not mere fancy, for every experienced nurse can remember instances of this natural modesty, though of course marked instances of it, except in venereal com- plaints, are quite rare among soldiers who have been liv- ing together for years with but little or no privacy. It is curious also what persistence the sick will show in continually denying what they think reflects on their characters. Men will deny ever having had any venereal complaint when the scars of old chancres are in full view. The surgeon therefore is compelled to seek and get his information in all ways possible, for he cannot treat his patients by guess-work. It is the duty, then, of nurses to report facts coming to their knowledge confi- dentially, as they know such knowledge is a secret be- tween them and the doctor. Irritability of Sick Men.-The military nurse is partic- ularly to be warned of the irritability of sick men. Ev- erything in the way of insubordination is so quickly no- ticed in army life that the nurse is apt to misunderstand the natural peevishness of the sick. Special pains are therefore taken to explain the whole matter to the nurse, showing him why so many things are tolerated in the (SUPPLEMENT.) hospital ward which would not be tolerated in the barrack- room. On the other hand, a nurse should not accept every- thing a patient will do, for such a course would be equally disastrous in certain cases. If a sick man sees that all his peevishness and restlessness is allowed to go un- checked he is apt to presume upon such leniency and get more peevish, unless he is too ill to have any thoughts in the matter at all. Therefore a gentle firmness is neces- sary in refusing requests that cannot be allowed. With- out being cross, ugly, or mean, a nurse can give the pa- tient firmly to understand that he must be quiet, as the orders are to that effect. Again, patients who are of an ugly, vicious disposition are apt to be deliberately bad in conduct. Where the nurse is sure that such conduct is deliberate, or has his doubts in the matter, he must report it at once to the steward or surgeon for action. Upon the nurse's tact and skill in managing these cases will de- pend in great degree his efficiency in the ward. Special care given to this point of the irritability of sick men is of so much importance that it is easy to see the great- est difference in the general order and contentment in the ward under some nurses, and the ill-feelings and un- happiness under others. The former are even-tempered men who understand the sick, while the latter are apt to be thoughtless or ignorant of this part of their duty. Occasionally a nurse will be so cross to the sick that he will actually retard their recovery. By giving thought- ful attention to the one item of irritability of sick men, a good nurse will be able to prevent much trouble in the ward and preserve that degree of order and quiet so nec- essary for men recovering from sickness. Cleanliness of Patients.-It is a general rule that every patient, if his condition will permit, shall be given a bath upon his admission to the hospital. This rule is much less rigid in military than in civil hospitals, be- cause soldiers are required to keep themselves clean by frequent bathing, and if they are not inclined to be clean about their persons their comrades are apt to compel them to be. It is very rare, therefore, to have a soldier ad- mitted to hospital in a dirty condition, unless it is in the field after a long march without bathing facilities. In civil life the poor who are taken sick have probably had no bathing facilities, and when taken to the hospital are often in a filthy condition and must be bathed at once. In military hospitals in time of peace there is no need to be on the look-out for men who are dirty, but when one is found he must be attended to. In war times the re- verse is true. After a long campaign, where the clothing has been limited in quantity, and changes could not be made, and bathing facilities were absent, the soldiers are apt to become indescribably dirty, and the heat, dust, and smoke of battle have made them far worse. The wounded are not infrequently brought to the hospital in a terrible condition of dirt, so that in war times the rule about bathing patients is of prime importance and is usually en- forced wherever allowable. After the patient has been in hospital for a few days the nurse is to look after his cleanliness, giving the neces- sary sponge-baths, looking after the hair and beard, and the condition of the nose and mouth. These duties are in no respect different from those in civil hospitals. In war times it is quite common for soldiers to become infected with lice and "crabs," and on admission to hos- pital be an actual source of danger to the other patients. These cases may require the surgeon's care. It may be said that as a rule nothing will be of any use short of shaving hair from the face and head, under the arms and over the pubis. " Crabs" may be so numerous that the whole body, even the eyebrows and eyelashes, are in- fected. Though the eyebrows could be shaved off it may be requisite to pull out each hair of the brows or lashes having nits on them. The nits must be cut off and burned, for no drugs have any effect on them except such strong drugs as would injure the skin. Nits will hatch out in spite of all applications. All matters relative to the cleanliness of the patient are within the personal duties of the nurse, and he should attend to them without special orders. The surgeon usu- 646 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) military Nursing, military Nursing;. ally has many things to think of when he sees his patient, and must keep in mind dozens of different points in pre- scribing the treatment, so that his mind should not be distracted by finding tht patient in a bad condition due to neglect by the nurse of those rules of cleanliness which he should carry out without special orders in each par- ticular case. The same general directions are to be ob- served as in civil hospitals regarding cleanliness and neatness of the bed, bedding, and bedclothing. These are looked after, kept neat and clean, and protected from contamination by infective discharges. Very old army barracks are quite apt to become infested with bed-bugs, and the soldiers wage a constant warfare against them. Hospitals at such posts are liable to get the pests intro- duced by patients, and in such situations the nurse is taught to exert special vigilance and by frequent and ample use of insecticides to exterminate the pests as soon as their presence is known. Observation and Report of Symptoms.-Military as well as civil nurses are required to observe the symptoms and report the facts to the surgeon. They must be taught that the patient is apt to exaggerate symptoms in certain cases and to hide them in others. The fact that a patient will make astonishingly erroneous statements as a result of dreams or slight delirium is to be kept in mind at all times. The military nurse is to be depended on in great part for that exact and detailed knowledge of patients necessary in military cases. In civil hospitals no special future harm may come to the patient, his relatives, or the community by the lack of records of any one case. It is entirely different in military hospitals, where every im- portant fact in regard to each patient must be recorded for future reference. Years after a soldier's death or dis- charge from hospital his relatives may make claims against the Government, which may be grossly false on one hand, or deserving in the highest degree, and nothing except the most accurate hospital records will permit of justice being done. Thus it happens that the nurse is com- pelled to carryout the spirit of all those exacting detailed reports that are usually denominated " Red-tape." Exaggeration of Symptoms.-There is a most important fact to be kept in mind by military nurses. In civil life where a man's pay depends upon the amount of work he does, and where he receives no pay if he is laid up by sick- ness, he is not apt to stop work for any trifling sickness. He goes on with his work willingly and cheerfully, even if he is slightly " under the weather," or suffering from slight injury. He knows that the matter is entirely in his own hands, and that no one can compel him to work. Laborers, therefore, become accustomed to working un- der difficulties, and it is astonishing sometimes to find under what disabilities they will go to their daily work. It is entirely different in military life, where every sol- dier knows that if he is able he must do his duty, whether he wants to or not. It would be a terrible state of affairs if, just before a battle, one-half of the soldiers would say that they are not feeling very well, and they guess they will lay off for a day or two. They must be excused by competent authority, and it must be made plain that they are not fit to work before they can be excused. The best soldiers never ask to be released from duty for any slight ailment, but there are a large number who feel very much aggrieved if they think they are working when they would " lay off " if they were their own mas- ters in civil life. Under such circumstances it is human nature for a soldier to exaggerate his sufferings. It is not malingering, of which more will be said later, but is a natural and involuntary attempt on his part to make it clear to the surgeon that the ailment is enough to neces- sitate the man's name being placed on the sick report. Men who would not stoop to the meanness of malinger- ing, and who would scorn a lie, will thus unconsciously deceive the surgeon as to the extent of their illness. A man often thinks so much of his troubles that he thoroughly believes he is sicker than he really is. Now a man cannot always think of his troubles, and after he is comfortably fixed in the ward and excused from duty, and his mind is occupied with other things he cheers up if depressed, forgets his imagined pains, and shows by all his conduct that he is not very ill. If the nurse observes this man's actions in the ward he is able to give the surgeon accurate and reliable information that would be a great aid in determining the proper treatment. Without this aid the surgeon is apt to treat the man as more ill than he really is, and, by greater restrictions than are needed, he might be giving the patient unnecessary confinement and unnecessarily harsh treatment. It must be kept strictly in mind that it is not intentional on the part of the soldier to appear more ill than he is ; and that he is an hohorable man who wants to do his duty if he can. By keeping these thoughts in mind the nurse is not apt to do him an injustice. As soon as the surgeon finds out the true state of affairs he can give the proper treatment and return the soldier to duty sooner than he otherwise would do. This course will save trouble and be far pleasanter to the soldier, who becomes satisfied he is bet- ter, and he returns to duty willingly in a very short time. This course is not only just to soldiers who suffer from slight ailments like all other human beings, but it is also just to the Government, because the man's labor is saved. It must not be thought that the surgeon excuses a man only in cases of sickness that causes a civilian to stop work, for this is not so. For instance, a man with a bad sore throat may go to his work and get well, but a soldier in the same illness could not stand guard with the ther- mometer forty degrees below zero. So that men are often in hospital with trifling ailments that would get worse under the exposures to which they might be sub- jected. Malingering.-By watching the symptoms of a case the nurse can often detect those mean men who deliber- ately state they are ill in order to escape duties which they are perfectly willing that their comrades should do for them. It is to the great credit of the American sol- dier that these cases of deliberate malingering are very rare, but now and then they do occur among the twenty- five thousand soldiers of our army. A malingerer oc- cupies the valuable time of the surgeon, causes much unnecessary worry in trying to find out what is the real disease, causes a loss of valuable drugs and extra diet in the treatment, puts much unnecessary work on the nurses, and, if he goes undetected, causes better men of the com- pany or troop to do extra guard or fatigue duty. It is only just to the good soldiers who are working extra that a malingerer should be detected and punished, and it is often due to an accurate, reliable, and just report from the nurse in charge that such detection is made possible. In peace, soldiers very rarely try to keep themselves ill so as to escape duty. In war, so many men are be- ing killed that a soldier is apt to welcome illness or in- jury that will enable him to get to a place of safety, and then go home, and possibly get his discharge. Hence it happens that occasionally a soldier may deliberately keep himself ill and refuse to take his proper treatment. To overcome this, it is customary to try such cases by court-martial. It may have to be shown to the court that the treatment was necessary to bring about a cure. Such trials are scarcely ever necessary in peace. In all cases the nurse may be an important witness to occur- rences in the ward. Administering Remedies.-In administering remedies there are usually no new directions for the nurse to ob- serve, beyond the necessity for watching the patient to see that he actually takes the medicine that is ordered. Soldiers who come into the hospital for trivial complaints for the purpose of escaping duty, have an old, w'orn-out trick of pretending to take their medicines, when in fact they do not. They must be watched by the nurse. As a rule, the stay of a soldier in hospital is made as pleasant as possible if he is ill. This is done in order to put nothing at all in the way of soldiers coming freely to the hospital for treatment as soon as they are taken sick. By such means it is possible to ward off serious illness, for it is highly probable that civilians who can- not easily stop work often suffer from serious com- plaints that could have been prevented by prompt treat- ment in the beginning. The old idea that the military 647 Military Nursing. Military Nursing. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) hospital should be made disagreeable and dismal to dis- courage malingering is brutal and not in accordance with modern methods. Nevertheless, in rare cases, just as in civil hospitals, disagreeable methods of treatment are re- sorted to, in the attempt to find out if there is malinger- ing. In such cases bitter and disagreeable medicines may be ordered, and the nurse must exercise great care to see that the proper doses are actually taken. In all cases he is to be on the lookout for the standard tricks, and he must make it a habit to see that each dose of med- icine is taken exactly as ordered. Military hospitals are not furnished with all the mod- ern conveniences for making medicines palatable, and the nurse must resort to various methods for overcoming bad tastes and odors. In the fjpld there may be no facili- ties at all for fancy pharmacy. Pills may be covered with tissue-paper, powders mixed with sugar or clean drinking-water, citric acid lemonade be on hand for use after taking medicines, and various expedients resorted to as occasion arises. In the future no difficulty may be experienced, as the new field outfit contains medicines in tablet form ready for use. 4. Nursing in the Field. Geneva Convention.-Away back before the Crimean War there was started a crusade against the prevailing style of nurses. Before this time it was considered that such work must be relegated to widows and worn-out women who had partly failed in the struggle for existence. In- deed, the more ignorant and cruel the woman, the more apt was she to take up nursing in her decline. Perhaps Charles Dickens may have done much to start the reform against the Mrs. Gamps and Mrs. Prigs, by describing with such honesty their habits and ability. In the midst of this reform the Crimean War broke out, and to England was brought those horrible tales of the suffer- ings of the sick and wounded soldiers, from privations and poor nursing. That great woman, Florence Night- ingale, who was then in the midst of the work of the great nursing reform, was sent to the Crimea and took charge of the hospitals. Her experiences in that war were written up, and the agitation resulting bore fruit in the Geneva Convention of 1864. This congress, com- posed of representatives from most of the civilized nations of the world, agreed to certain articles for the ameliora- tion of the wounded in armies in the field. They were not concurred in by the United States until 1882, and even then with reserve as to the additional articles of 1868. The Convention is given in full below. Original Convention.-Article 1. Ambulances and mili- tary hospitals shall be acknowledged to be neuter, and as such shall be protected and respected by belligerents so long as any sick or wounded may be therein. Such neutrality shall cease if the ambulances or hos- pitals should be held by a military force. Art. 2. Persons employed in hospitals and ambulances, comprising the staff for superintendence, medical service, administration, transport of wounded, as well as chap- lains, shall participate in the benefit of neutrality, while so employed, and so long as there remain any wounded to bring in or to succor. Art. 3. The persons designated in the preceding article may, even after occupation by the enemy, continue to fulfil their duties in the hospital or ambulance which they serve, or may withdraw in order to rejoin the corps to which they belong. Under such circumstances, when these persons shall cease from their functions, they shall be delivered by the occupying army to the outposts of the enemy. Art. 4. As the equipment of military hospitals remains subject to the laws of war, persons attached to such hos- pitals cannot, in withdrawing, carry away any articles but such as are their private property. Under the same circumstances an ambulance shall, on the contrary, retain its equipment. Art-. 5. Inhabitants of the country who may bring help to the wounded shall be respected and shall remain free. The generals of the belligerent powers shall make it their care to inform the inhabitants of the appeal ad- dressed to their humanity, and of the neutrality which will be the consequence of it. * Any wounded man entertained and taken care of in a house shall be considered as a protection thereto. Any inhabitant who shall have entertained wounded men in his house, shall be exempted from the quartering of troops, as well as from a part of the contributions of war which may be imposed. Art. 6. Wounded or sick soldiers shall be entertained and taken care of, to whatever nation they may belong. Commanders-in-chief shall have the power to deliver immediately to the outposts of the enemy soldiers who have been wounded in an engagement, when circum- stances permit this to be done, and with the consent of both parties. . Those who are recognized, after their wounds are healed, as incapable of serving, shall be sent back to their country. The others may also be sent back, on condition of not again bearing arms during the continuance of the war. Evacuations, together with the persons under whose direction they take place, shall be protected by an ab- solute neutrality. Art. 7. A distinctive and uniform flag shall be adopted for hospitals, ambulances, and evacuations. It must on every occasion be accompanied by the national flag. An arm-badge (brassard) shall also be allowed for indi- viduals neutralized, but the delivery thereof shall be left to military authority. The flag and the arm-badge shall bear a red cross on a white ground. Art. 8. The details of execution of the present Conven- tion shall be regulated by the commanders-in-chief of belligerent armies, according to the instructions of their respective governments, and in conformity with the gen- eral principles laid down in this Convention, Additional Articles.-Art. 1. The persons designated in Article 2 of the Convention shall, after the occupation by the enemy, continue to fulfil their duties, according to their wants, to the sick and wounded in the ambulance or the hospital which they serve. When they request to withdraw, the commander of the occupying troops shall fix the time of departure, which he shall only be allowed to delay for a short time in case of military necessity. Art. 2. Arrangements will have to be made by the bel- ligerent powers to insure to the neutralized persons, fallen into the hands of the army of the enemy, the en- tire enjoyment of his salary. Art. 3. Under the conditions provided for in Articles 1 and 4 of the Convention, the name ' ' ambulance " ap- plies to field hospitals and other temporary establish- ments which follow the troops on the field of battle to receive the sick and wounded. Art. 4. In conformity with the spirit of Article 5 of the Convention, and to the reservations contained in the protocol of 1864, it is explained that for the appointment of the charges relative to the quartering of troops and of the contributions of war, account only shall be taken in an equitable manner of the charitable zeal displayed by the inhabitants. Art. 5. In addition to Article 6 of the Convention, it is stipulated that with the reservation of officers whose de- tention might be important to the fate of arms, and with- in the limits fixed by the second paragraph of that Article, the wounded fallen into the hands of the enemy shall be sent back to their country after they are cured, or sooner if possible, on condition, nevertheless, of not again bearing arms during the continuance of the war. There are ten other articles, concerning the marine. It is evident, therefore, that in the field, in civilized war, the military nurse is placed upon a very different footing than formerly. He is a privileged character be- cause he is engaged in the work of humanity, and to proclaim his privilege he wears on his left arm the badge of his calling-the Geneva Cross-a red cross in a white field. When so employed, and so distinguished by his badge, he becomes neutral, notwithstanding his nation- ality, and he cannot become a prisoner of war. When his 648 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Military Nursing, Military Nursing, work of bringing in or succoring the wounded is finished he must be sent back to his own army as soon as possi- ble, unless he choose tp remain and work among the wounded. In warfare with a civilized nation that has not agreed to the Geneva Convention, it plays no recog- nized part whatever, though its principles may be carried out by both sides on the general grounds of humanity. In war against savage people the humane principles of the Convention will be disregarded, and a nurse is apt to be killed in the very act of relieving the suffering. The hospital flag may be as much riddled with bullets as any other, and the very existence of medical help seems to be unknown to the savage. Thus it happens that as almost all the active operations of the United States army are against savages, the military nurse re- ceives no benefit whatever from the Geneva Conven- tion, and its provisions may not be taken into considera- tion at all. On the March.-On the march the hospital corps de- tachment follows the regiment or brigade ambulances, the privates of the hospital corps being mounted. This is necessary to preserve their strength as much as possi- ble, because their work begins at the end of the day's march, when the soldiers of the line can rest. Those that are not mounted are allowed to ride on ambulances or other wagons. The duties on the march are to look after the comfort of the sick that are being transported from camp to camp, give them their required medicines, prepare for them such food as may be practicable en route or on the short halts. On long, hot marches sol- diers are apt to become exhausted and fall out of ranks to wait for the ambulances and the surgeon to come up. When such cases are met with the nurse secures their arms and accoutrements, places these in the ambulance, and then finds a seat for the patient and administers the remedies that have been prescribed. Cases of exhaus- tion are apt to be frequent when the campaign is pro- ceeding under the difficulties of deficient and improper food and clothing, or the troops have been exposed to the severity of the weather. It can be assumed that in such circumstances the nurse may have much to do un- der great disadvantages. In Camp.-On arriving at the end of the day's march the nurses all assist in making fires, preparing some light food for the sick, and making the latter comfortable in shady places, and attending to the usual routine duties of nurses. By the time this is finished the wagons with tents and rations have arrived ; all hands must turn to and unload them as quickly as possible. The cooks secure the rations and start the preparations for the prin- cipal meal at once. All others erect the tents, prepare the cots or bunks for the sick, and carry the sick into the tents. This temporary field hospital is thus established, and can be placed in running order within a few minutes after the arrival of the wagons, and from this time on until the next day the duties of the nurse are essentially the same as in any permanent hospital. There are so many things to be improvised in camp that it is almost useless to expect efficiency from the nurse unless he has had considerable experience as a camper-out, and has had much instruction besides. In the absence of bunks or cots he must know how to make a soft, comfortable bed of leaves or brush. He must know how to arrange the men in the tents so as to econ- omize floor space. He must be thoroughly conversant with the methods of pitching tents, excluding draughts of air from patients, excluding rain, erecting and caring for the stoves in cold weather, and the thousand and one little details of camp life that altogether will turn a primitive way of living into one of great comfort. In the early morning, if camp is broken, some patients may have to be sent back as unfitted to proceed with the com- mand. These must be prepared by the nurses, placed in the wagons with their accoutrements, and, if no nurse is to accompany them, they are to be given their medi- cines with instructions how to take them. The nurse is to do everything possible to make these men comfortable until they reach other hands. While this is being done the other patients that are to go forward are placed in (SUPPLEMENT.) the ambulances, and the tents are struck and everything loaded on the wagons and the march is begun. In more permanent camps the nurses must be expected to devise conveniences for the sick. To go into this mat- ter would only be to write an article on camping, which is not the intention here. It is sufficient to remark that in the months that might elapse before the camp is changed the nurses are continually making the field hos- pital nearer and nearer a permanent hospital of very rude construction. A nurse is expected to be handy with carpenter's tools, and ingenious enough to design from rough lumber and packing boxes all the little ap- pliances used in nursing. By a little ingenuity it is pos- sible with the materials in camp to give efficient vapor- baths for the relief of spasmodic retention of urine, to make various forms of counter-irritation with hot water and hot stones, to practise the method of firing, to make poultices, and to perform numerous operations usually deemed to require special apparatus. Battle.- When battle is expected the nurses are particu- larly busy in assisting to send the sick to the rear, and in getting everything ready for the work that is to come. Large quantities of fresh water are brought to hand, and as much water boiled as possible. The antiseptic solutions for irrigation are gotten ready, instruments and dressings brought out and prepared ; indeed it is the whole rou- tine of preparing for operation in a permanent hospital. It is a time of great excitement and hurry, and unless the nurses are well drilled and instructed there is apt to be abominable confusion. When the wounded are brought in, the nurse's duties are exactly as in permanent hospitals. The arrangements made for succoring the wounded on the battle-field have been fully described in former articles in this work. Nurses detailed for duty at dress- ing, collecting, or ambulance stations have no new duties to perform that are not already described. Between these stations and the fighting line is an area where nursing ceases, and the privates are concerned in bring- ing in the wounded on stretchers, travois, etc., and in rendering first aid in the way of stopping haemorrhage, reviving men from collapse, carrying water to the wounded, and all the other attentions to them that need not be detailed here. In the rapid dusty marches previous to a battle there is no chance for cleanliness, and the soldiers become ex- ceedingly dirty, as already explained. The wounds there- fore are extremely apt to be infected, and the hurry, overcrowding, and lack of proper care, always make mat- ters far worse. Thus it happens that wounds begin to suppurate or become gangrenous where they should heal kindly. This state of affairs is always seen in wars, and, as one of the means taken to prevent it, the nurses will be instructed to take the most particular pains to render everything aseptic and to be as cleanly as circumstances will permit. In advances or retreats the nurse will be ordered to new fields of duty by his commanding officer, and in his work of humanity he will find himself greatly assisted by the provisions of the Geneva Convention which now come into play. From all the foregoing it can be assumed that the proper instruction of the nurse in field duties is to include all things that can be done for the sick, so that the wishes of the surgeon can be anticipated. By these means the corps of nurses will make it possible for a few surgeons to give medical and surgical care to a very large number of patients in such busy times as accom- pany and follow battles. The future is to see a very great change for the better in the treatment and nursing of the wounded in the field. The advantage now taken by the concentrated medicines, extracts, compressed tablets, compact dressings, and intel- ligent methods of packing these in convenient shape has resulted in the magnificent new field equipment of the United States Army Medical Department. These are fully described in the last report (1892) of the Surgeon- General, and for convenience and efficiency this equipment is described as being in advance of that of any army in the world. Going hand in hand with the advances in new medical 649 Military Nursing. Military Recruit. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. and surgical preparations is another advance, that of the preparation of food. This concerns us most here, as it is more intimately associated with the nursing of soldiers in the field. Ever since the most ancient times military men have been experimenting with the concentration and preservation of food for armies in the field. The re- sults have not been of much service to the surgeon, as he could not utilize them to any great extent in the treat- ment of the sick. Recent years have seen the successful manufacture of a host of foods for invalids, and from these the soldier in future wars will derive incalculable benefit. It has been described above how soldiers are taken ill on the march, how they become exhausted and have to fall out, to be picked up by the ambulances. The great point in the treatment and nursing of these men is to give them rest, stimulants, and nourishment. The latter has always been lacking. In the future the ambulance will be fully equipped with some of the myriads of prepared foods now in the market. A cup of water will be heated on an oil or alcohol stove, and in a few minutes a cup of the most nourishing and stimulat- ing soup can be prepared for the exhausted soldier. No doubt by such means it will be possible to restore to the fighting force numbers of men that in the past were sent to the rear or allowed to die in the roads. As soon as camp is reached the sick in the ambulances will be fed. This rest and nourishment will allow them to recuperate for the next day's work. Again, it is known that for many hours, or perhaps days, the wounded on the battle-field may lie where they fall, and a large percentage of them die of exhaustion. Nurses and attendants will be enabled with these prepared foods to save a large number of such unfortunates. The nurse will therefore be instructed in the preparation and use of the foods that will be carried along with the ambu- lances, medicine wagons, or special ration wagons. Beef- extracts and prepared soups will, of course, be the main articles, but advantage will accrue also from the digested foods prepared for invalids, and indeed also from that immense list of specially prepared and concentrated vege- tables and fruits for exceptional cases. Chas. E. Woodruff. MILITARY RECRUIT, PHYSICAL CHARACTERIS- TICS OF THE. The teaching in physical culture, and the encouragement that has been given to it by the vari- ous civil institutions of learning throughout this country and at the United States Naval Academy at Annapolis, Md., have, during late years, attracted much attention among army people, and have resulted in a revision, in cer- tain particulars, of the standard of physical requirements for the admission of officers and enlisted men to the army, and of cadets to the Military Academy at West Point, N. Y. The lax methods of examination that have heretofore been tolerated led to the acceptance of men with de- fects that were either latent or concealed, which, devel- oped by incidents of the service, resulted in an early breaking down and consequent retirement of many offi- cers, and to numerous discharges on disability certificates of enlisted men from the service. The remedy seemed apparent in the exercise of greater care when inquiring into the moral and physical qualifications of all classes of men, and in giving more explicit directions for the guidance of examiners in their work ; to this end the recruiting regulations have been modified, the require- ments for admission to the Military Academy at West Point have been more clearly set forth, and laws have been enacted by Congress providing for careful examinations into the physical condition of applicants from civil life for commissions in the army, and for similar examina- tions prior to the promotion of officers from one degree of rank to another. Many of the visual and aural defects that modern science has brought to light and defined are now officially declared as disqualifications, and tables of proportion, showing the relations which should exist be- tween height, weight, and chest measurement and mo- bility in the normal man, are published as aids to the recruiting officer. (SUPPLEMENT.) These several improvements in method are briefly out- lined under the following headings : The Legal Requirements eor Enlistment.-Any male person above the age of sixteen and under the age of thirty years, effective, able-bodied, and free from dis- ease, of good character, who does not appear to be of in- temperate habits, and who has a competent knowledge of the English language, may be enlisted, due attention being given to the restrictions in this article concerning minors. This regulation, in so far as it relates to age, does not apply to soldiers who may re-enlist, nor to those who have served honestly and faithfully a previous en- listment in the army. Applicants for enlistment are required to furnish such evidence of good character as they can obtain. With a view to determine their fit- ness and aptitude for the service, and to give them an opportunity to secure testimonials, as well as for the in- quiry and deliberation contemplated by the Second Ar- ticle of War, they may be retained and provided for at rendezvous, for a period not to exceed six days, after having signed the declaration of intention to enlist and passed the medical examination. Men so retained are known as recruits on probation. The enlistment papers of any such recruit who may be unfit or undesirable for the service, or who may not desire to remain in the service will not be completed. The enlistment papers of recruits who are accepted and duly sworn will bear the date on which the enlistment is completed by administering the oath (A. R., Art. LXXL, 908). . . . The Major- General commanding the army is of opinion that if sat- isfactory evidence of good character, habits, and condi- tion cannot be furnished by the recruit, or be otherwise obtained, the presumption should be against him and he should not be accepted ; and, further, that these views are concurred in by the Secretary of War and should govern in all cases (G. O., No. 1, Head-quarters Recruiting Ser- vice, 1890). These rules and articles shall be read to every enlisted man at the time of, or within six days after, his enlist- ment, and he shall thereupon take an oath or affirma- tion in the following form : " I, A. B., do solemnly swear (or affirm) that I will bear true faith and alle- giance to the United States of America ; that I will serve them honestly and faithfully against all their enemies whomsoever, and that I will obey the orders of the Presi- dent of the United States and the orders of the officers appointed over me, according to the Rulesand Articles of War." This oath may be taken before any commissioned officer of the army (Article of War). Every officer who knowingly enlists or musters into the military service any minor over the age of sixteen years without the written consent of his parents or guardians, or any minor under the age of sixteen, or any insane or intoxicated persons, or any deserter from the military or naval service of the United States, or any person who has been convicted of any infamous criminal offence shall, upon conviction, be dismissed from the ser- vice, or suffer such other punishment as a court-martial may direct (Article of War). Under a recent Act of Congress fraudulent enlistment is declared a military offence, and is punishable by court- martial under the Sixty-second Article of War ; the pro- visions of this law are fully explained to every applicant presenting himself for enlistment with the information that any person procuring his enlistment on or after the 25th day of September, 1892, by false representations or other fraudulent means, will render himself liable to trial and punishment by court-martial. '"Fraudulent en- listment" is defined by the law officers of the depart- ment as " an enlistment procured by means of a wilful misrepresentation in regard to a qualification or dis- qualification for enlistment, or by an intentional conceal- ment of a disqualification which had the effect of causing the enlistment of a man not qualified to be a soldier, and who but for such false representation or concealment would have been rejected." The regulations above quoted sketch in outline the requirements for admission to the enlisted branch of the military service and the duties of officers in connection 650 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Military Nursing, Military Recruit. therewith. For the recruiting officer an essential to suc- cess is a knowledge of men and their character, and for the medical officer a painstaking application of profes- sional skill. The duty is a most important one, and in its faithful and thorough performance these officers share a grave responsibility. The influence of their judgment and discretion is felt throughout the entire military establishment, the efficiency of which depends in great measure upon the sound mental and physical condition and the intelligence of its enlisted force. From the varied classes and conditions of men presenting them- selves for enlistment they are to eliminate not only those who are defective physically and mentally, but those who are defective morally, and if this duty be performed care- lessly or indifferently, men will be admitted to the ser- vice with defects which will soon render them unfit for duty, or with moral obliquities that will induce malin- gering and desertion. Although the result of such per- functory performance of duty may come to light during the probationary service of a recruit at a depot, it will certainly be shown in the company, from which his eventual discharge cannot fail to bring deserved censure upon the officers concerned in his enlistment. Re-enlistments.-Soldiers who are unable to pass the required examination in all respects will not be re-en- listed without special authority from the Adjutant-Gen- eral's Office, and then only for their former commands ; application for such authority should be recommended only when it is shown that any existing defects will not prevent the full discharge of duty as a soldier, and that a continuance in service will be a positive benefit to the army. Soldiers discharged as privates upon expiration of term of service and failing to re-enlist within one month, will not be again enlisted after they have passed the age of thirty-five years, unless for some good reason in the inter- est of the public service, and then only for their former commands upon special authority from the Adjutant- General's Office. This limitation as to age will not apply to a soldier discharged as a non-commissioned officer with excellent character, and desiring to again enlist for assignment to a former command (not already full), either at the station thereof, or at a recruiting depot, provided he passes the required examination and furnishes satisfactory evidence in regard to character and habits since discharge. Soldiers who have been discharged with good charac- ter under the provisions of law may be again enlisted without special authority after a period of two months from date of discharge, upon passing the required ex- amination and furnishing satisfactory evidence in regard to character and habits since discharge, provided such enlistment is not barred by any of the above provisions. Soldiers discharged before expiration of term of service for any other cause will not be again enlisted without special authority from the Adjutant-General's Office. These restrictions, which are intended more particu- larly to govern re-enlistments for the line of the Army, need not necessarily be applied to the Hospital Corps ; the approval of the Surgeon-General will be sufficient warrant for the re-enlistment of soldiers into that corps. Height, Weight, and Chest Measurements.- " The minimum height of a recruit is at present fixed at five feet four inches for all branches of the service, al- though recruiting officers are allowed to exercise their discretion as to the enlistment of desirable recruits (such as band-musicians, school-teachers, tailors, etc.) who may fall not more than one-fourth of an inch below the mini- mum standard of height; the maximum height for the cavalry service is five feet ten inches ; that for infantry and artillery is governed by the maximum of weight, to which should be applied the rule for proportion in height." " The minimum weight for all recruits is 128 pounds, except for the cavalry, in which enlistments may be made without regard to a minimum of weight, provided the chest measurement and chest mobility are satisfactory. The maximum for infantry and artillery is 190 pounds ; for cavalry and light artillery, 165 pounds." The standards of height and weight are, however, sub- ject to change, instructions to that effect being issued from the Adjutant-General's Office " from time to time as the requirements of the service may dictate." These standards are based upon results obtained by skilled observers who, after careful study and the ex- amination of large numbers of men in civil and military life, have established the fact that there is an average proportion in healthy, fully developed men between the height, weight, chest measurement, and chest mobility which will admit of slight variations without indicating a departure from health. The rules of this proportion may be formulated as follows : For each inch of height from 5 feet 4 inches to 5 feet 7 inches, inclusive, there should be calculated 2 pounds of weight. When the height exceeds 5 feet 7 inches, calcu- late 2 pounds of weight for thewAoZe number of inches of height; add to this product 5 pounds of weight for each inch of difference between 5 feet 7 inches and the actual height ; the sum will be the normal weight in pounds. The chest measurement at expiration in men from 5 feet 4 inches to 5 feet 7 inches in height should exceed the half height about half an inch ; in those from 5 feet 8 inches to 5 feet 10 inches it should equal the half height, while in those from 5 feet 11 inches upward it should be slightly less than the half height. The chest mobility-i.e., the difference between the meas- urement at inspiration and expiration-should be at least 2 inches in men below 5 feet 7 inches in height, and 2| inches in those above that height. The following table shows this concisely : Height. Weight. Allow for each inch of height: Chest measure- ment. Chest mobility. 5 feet 4 to 5 feet 7 inches. 5 feet 8 to 5 feet 10 inches. 5 feet 11 to 2 lbs . Half height plus half inch. Half height 2 inches. 2}^ inches. 2% inches. f2 lbs., and 5) | lbs. addition- | ■{ al for each | inch over 5 | [ feet 7 inches. J Slightly less than half height. For example, a man who measures 5 feet 4 inches should weigh 128 pounds-i.e., 5 feet 4 inches = 64 inches ; 64 x 2 = 128, the normal weight. He should have a chest measurement of 324 inches at expiration, being half height; 32 inches plus 4 inch = 324; the chest mobility should be about 2 inches. A man who measures 5 feet 9 inches should weigh 148 pounds-i.e., 5 feet 9 inches = 69 inches ; 69 x 2 = 138 ; difference between 5 feet 9 inches and 5 feet 7 inches is 2 ; 2 x 5 = 10 ; 138 + 10 - 148, the normal weight in pounds. He should have a chest measurement of 344 inches (his half height), and a chest mobility of at least 2j inches. It is not necessary that the applicant should conform exactly to the figures indicated in the rules, a variation of a few pounds from either side of the standard in the mini- mum, medium, and maximum weights, and of a fraction of an inch in chest measures being permissible if the ap- plicant is otherwise in good health and desirable as a re- cruit. The rules are given to show what is regarded as a fair proportion, but the weight must be at least 125pounds, except when less is especially authorized by the superin- tendent or the Adjutant-General. In such cases the recruiting officer's reasons and the superintendent's order should be noted in full on the en- listment papers. Any considerable disproportion, how- ever, of height over weight is cause for rejection ; but a marked disproportion of weight over height does not reject unless the applicant is positively obese. In order that an intelligent application of these rules and their variations may be made, the attention of re- cruiting officers is called to the manner in which a man's height is made up. The chest, containing the heart and lungs, is the most important division of the body. It contains the vital 651 Military Itecruit. Monte Carlo. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. machinery and represents the staying power of the man. It must, therefore, be ample. The function of the legs is to transport the body ; they should be well formed and sufficient, but not unduly long, for length of limb at the expense of the chest is a disadvantage. A long-legged, long-necked man with a short chest is objectionable as a recruit. The average height of a youth of eighteen years of age, a " growing lad," is a little over 5 feet 4 inches, and in- creases gradually until he reaches the age of twenty-five years-the stage of physical maturity or manhood-when his average height is between 5 feet 7 inches and 5 feet 8 inches. During the growing period the frame-work and vital organs receive their proper development, and consider- able departures from the given average of proportionate height to weight indicate an impairment of these organs which may, and probably will, develop into positive dis- ease after exposure to the hardships incident to the life of a soldier ; hence they are of greater significance in men of these heights than in taller men, who are presumably of greater age and more mature growth. After twenty-five years of age, the body being fully developed, the excess of nutritive material over and above that required for its maintenance in health is deposited in the tissues as fat, and it will be found that a dispropor- tion of weight over height occurs usually in adults or men in middle life. It is rare to meet in the recruiting rendezvous with very fleshy young men. The following table is given for convenience of re- ference : (SUPPLEMENT.) Rule.-For each inch of height, from 5 feet to 5 feet 7 inches, calculate 1,85 pound of weight : above 5 feet 7 inches, add to this standard 5 pounds for each inch of height; minimum chest measurement at expiration, from 5 feet to 5 feet 7 inches, half the height plus half an inch ; from 5 feet 7 inches to 5 feet 10 inches, half the height; from 5 feet 10 inches upward, slightly less than half the height; minimum chest mobility, 2 inches. In excep- tional cases a minimum weight of 105 pounds may be accepted. Under recent regulations the examinations are held at the military post nearest the residence of the candidate, and simultaneously with the mental examination. Medical officers are instructed to record in each case, whether of acceptance or rejection, the results of their examinations on a form of which the following is a copy : To be sent to the Surgeon-General, United States Army. Form for the Physical Examination of a Cadet Candidate for Admission to the U. S. Military Academy, West Point, N. Y. This examination is to be made before the candidate is strippt d. Name ; birthplace; residence. Nationality of father ; of mother. If either or both parents, or broth- er or sister have died, state the cause. Do you drink intoxicating liquors, and, if so. to what extent ? Do you use tobacco, and, if so, in what form and to what extent? What diseases or injury have yon had. if any ? Vision : Right eye ; left eye. Color perception. Hearing : Right ear ; left ear. This examination is to be made after the candidate is stripped. Physique. Age. Height. Weight. Chest measurement. Years. Months. Feet. Inches. Pounds. Expiration. Inspiration. inches inches Table of Physical Proportions for Height, Weight, and Chest Measurement. Height. Weight. Chest Measurement. Feet. Inches. Pounds. At expiration: inches. Mobility : inches. 54/u 64 128 32% 2 5% 2 65 130 33 2 5% 2 66 132 33% 2 67 134 34 2 58/i2 68 141 34 2% 59A2 69 148 34% 2% 5*% 2 70 155 35 2% 5H/12 71 162 35% 2% f> 72 169 35% 2% 6Via 73 176 36% 2% Nutrition and Diathesis.-Note anything unfavorable in the general appearance, such as sickly aspect or unduly full habit. Integumentary System.-Note any skin eruptions, sores, or ulcers. Any tendency to catarrhs ? Nervous System and Organs of Sense.-Note any loss of faculties or other present derangement of function or any suspicion of serious lesion. Respiratory System.-Note any hoarseness, cough, or other present derangement of function, or any abnormity discoverable by auscultation or percussion. Vascular System.-Note rate and quality of pulse. [If excited, re- examine till you assure yourself of the normal rate.] Any intermit- tence or irregularity, or undue strength or weakness of heart-action ? Any abnormity discoverable by auscultation or percussion ? Any hae- morrhoids, varicocele, or varicose veins? Digestive System.-Note any present derangement of function, any enlargement of liver or spleen, or suspicion of organic disease of any of the abdominal organs. Remarks. certify that have personally examined the above-named candi- date, and, finding him physically qualified for the military service, (accept, reject) him. Surgeon, U. S. Army. . Surgeon, U. S. Army. Dated at , this day of , 189 . Charles R. Greenleaf. MOFFAT. A watering-place in Dumfries-shire, Scot- land. Location.-Moffat is a village charmingly situated among the lower hills of Scotland. It has a cold, sul- phurous, and saline spring of small importance, but is popular on account of the exhilarating and bracing quality of its atmosphere, and its general salubrity as a summer resort. Mineral-water baths are much em- ployed, and there is a hydro-therapeutic establishment of modest equipment. The water contains sulphuretted hy- drogen and has a disagreeable taste. Fogs are said to be rare at Moffat, but there is plenty of rain. The place is patronized by the Scotch and English, and is by them very highly spoken of ; but it has not yet acquired an international reputation. Summer season only. Edmund C. Wendt. MONOBROMACETANILIDE (Antisepsine, Asepsine). Very soon after the therapeutic value of acetanilide had been recognized, this bromine compound was in- troduced as an anodyne, analgesic, and antiseptic. It is A deviation from the rules of physical proportions may be made in the examination of candidates for admission to the United States Military Academy at West Point, and for members of the graduating class, wdienever this is deemed desirable by the Medical Examining Board. The Ear.-Recent instructions from the War Depart- ment require that all men enlisted for the artillery arm of the service at a military post, or assigned to that arm from a depot, shall, before such enlistment or assignment, besides undergoing the ordinary examination, be ex- amined especially with a view to establishing the fact of the patency of the Eustachian tubes and the integrity of the tympanic membranes, in default of which the men are untit for that arm. Physical Examinations of Candidates for Ap- pointment as Cadets at the Military Academy at West Point, N. Y.-The physical examination of can- didates for appointment to the United States Military Academy will be made after the methods prescribed in " Greenleaf's Epitome for the Examination of Recruits, and as they are final for admission to the Military Academy special care should be given to determine the condition of the heart and lungs. Normal vision (|H) as determined by the official test types is required, and color-blindness rejects. The following rule for proportionate height, weight, and chest measurement, is substituted forthat on pages 26-28 of the "Epitome," but it should be under- stood that this rule is intended merely as a guide, from which deviations are permissible in the judgment of the medical officer: 652 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. military Recruit monte Carlo. formed from acetanilide, CeHaNHCsHsO, by the sub- stitution of one atom of bromine for one of hydrogen, its formula being Cs^BrNHCallsO. It occurs in white acicular crystals, and is tasteless ; it is insoluble in water, slightly soluble in glycerine, and very soluble in alcohol and ether. In doses of five-sixths of a grain, four times a day, it lowered the temperature in phthisis, typhus, and typhoid fever, slowing the pulse at the same time, but not affect- ing the respiration. In pneumonia it was found liable to produce cyanosis. It was also used in neuralgia with success, in doses of five to eight grains. The employment of this compound failed to become general, as it was found that prostration and cyanosis frequently accompanied its use. Several cases have been reported, in which two doses of five grains, taken at long intervals, produced very alarming symptoms. Lips, cheeks, and extremities became cyanosed, pulse rapid and small, noises in the head, and great restlessness and weakness. These symptoms diminished in a few hours and recovery followed in all the cases. As an application to wounds and ulcers it is thought to promote healing in a remarkable manner. It also was used to allay the pain of haemorrhoids and anal fissure, in the form of suppositories. Beaumont Small. MONOCHLORPHENOL. A derivative of carbolic acid by substituting one atom of chlorine for one of hy- drogen ; its formula is CsELClOH. It is a very volatile liquid, giving off vapors which are heavier than air. Under the name of chlor phenol, a mixture of mono- chlorphenol, alcohol, eugenol, and menthol, has been recommended as an inhalation in phthisis and pulmo- nary troubles in which an antiseptic is likely to prove ser- viceable. Dr. Passerini, of Casate-Nuovo, Italy, who in- troduced it for this purpose, has used it in a number of cases with beneficial effects. He states that it is a power- ful antiseptic, free from caustic and irritant properties. Fifteen to thirty drops are to be placed on a pledget of cotton in an inhaler, and the fumes inspired ; being heav- ier than air they are supposed to penetrate deeply into the bronchioles and alveoli. In cases in the incipient stage of phthisis the sputa were found to diminish and lose their purulent character, and in two months the patients were apparently cured. The advantages he claims for it are : 1, The inhalations are easily borne in advanced phthisis, and they are convenient of application ; 2, no injurious effects arise from the continuous use of the drug ; 3, changes in the quantity and quality of the pus continue until pus and bacilli disappear, the cough di- minishing, the fever being reduced, the appetite and sleep soon returning, the weight of the body increasing rapidly, and local improvement being speedily attained. Beaumont Small. MONTE CARLO. This Riviera resort is one of the most beautiful places along the north shore of the Medi- terranean. It is also one of the best sheltered spots, and would probably be the leading health-resort of the whole coast if it were not for the notorious gambling palace erected there. Monte Carlo is part of the little princi- pality of Monaco, and is only nine miles in an easterly direction from Nice, and about six miles westward from Mentone. Although Monte Carlo is chiefly visited by the vota- ries of pleasure, real invalids have of late years been at- tracted to the place on account of its undeniable advan- tanges as a winter station. In connection with the insti- tution of public gambling, the writer will here quote from his report on Monaco and Monte Carlo, which ap- peared in the Medical Becord of July 23, 1892 : " My experience on the Riviera enables me to state as a positive fact that many more people go to Monte Carlo to gamble from the various resorts near it than from the town itself. Cannes, Nice, Mentone, and even San Remo, send their daily quota of gamblers there in un- comfortably crowded trains. And those who have no inclination for the silly game may just as well live within a stone's throw of the Casino itself as miles away. (SUPPLEMENT.) I cannot, therefore, quite agree with those who would warn people away from Monte Carlo merely on account of the gambling going on there. If they are so weak as to have to yield to this particular temptation, they are better off at home than on the Riviera. It has seemed to me, however, that Americans are abundantly able to take care of themselves wherever they may happen to be. It is necessary to state my views on this point, because I believe Monte Carlo can be made one of the best winter stations on the whole coast. Even now every possible accommodation is offered there, and the only criticism one can justly make on that score is that the hotel and restaurant rates are often exorbitant. But if it is not a cheap place, it certainly can claim to be a good one, at least so far as the provision of American comforts and luxuries is concerned. This is considera- bly more than can be said for some other winter stations that are scattered along the coast here." In the same report the writer has also pointed out that Monte Carlo is one of the warmest winter stations on the Mediterranean coast. But it is not true that it enjoys a more equable temperature than all other resorts. Sudden thermometrical variations occur there just as elsewhere on the Riviera. Some parts of the principality are very well protected from winds, while others are decidedly ex- posed to them. The bare rocks rising up to a considera- ble height, immediately back of Monte Carlo, afford am- ple protection from cold northerly winds, and by reflect- ing the sun's rays appreciably raise the temperature in their vicinity. But when the sun has set, the succeeding chill is felt all the more violently, though the actual fall of temperature is less abrupt and less perceptible than our sensations appear to indicate. It would occupy too much space to go into details here concerning the physi- cal configuration of various sections of the Monegasque territory, but the reader may infer from these general indications that some well-sheltered and warm nooks can be found at Monaco. For well-to-do invalids the place will doubtless be made increasingly attractive, on ac- count of the large sums of money spent annually for im- provements. But people don't save money by going there, even when they gamble and win. The rainfall and the proportion of sunny days to cloudy ones arc about the same as at Nice or Mentone, and need not be specially considered. One advantage in favor of Monaco is that less dust is found there than at Nice, Cannes, or Hyeres. The drinking-water of Monte Carlo was not good at the time of the writer's tour of inspection. But it was about to be changed for a better supply. As regards the sewerage of the place, although an elaborate and expen- sive system of street drains exists, it is not as perfect as the authorities claim. As Monte Carlo and Monaco are rapidly growing this is a matter of great importance to their future claims as health-resorts. In the writer's article already alluded to, this point is referred to as follows : "Excepting the low-lying quar- ter called Condamine, Monaco affords every natural ad- vantage for a perfect system of drainage. Yet so far from being in good shape, this essential sanitary require- ment leaves much to be desired here. It is true, drains have now been established in all the principal streets, and most of them have a sufficient natural incline. But, as elsewhere on the Riviera, the house connections are insecure and dangerous. This applies more particularly to the old house-pipes that were subjected to the violent shaking up of the earthquake a few years ago. The authorities are only just beginning to realize that, in spite of the prevalent English closets, some radical re- forms may be needed. " Many of the old, poorly constructed, unventilated cesspools still exist, and receive the house-soil. As plenty of water is now used they would have to be emptied every two or three weeks. But house-owners, in order to avoid this expenditure, have, in spite of forbidding law, connected their cesspools by overflow pipes with the main sewers. Cut-off traps having been quite gen- erally omitted, the obvious consequence is that sewer- gas is almost certain to enter all hotels, villas, and lodg- 653 monte Carlo. Mountain Sickness. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Fig. 430.-View of Monaco and Monte Carlo. 654 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Monte Carlo. Mountain Sickness. ing-houses provided after this obsolete fashion. The evils of so reckless a system are to some extent coun- teracted by the winds that cleanse the polluted atmos- phere. But the night-air of such dwellings is bound to be dangerous, and, whenever possible, windows ought to be kept open all night. I am bound to state, however, that offensive odors, such as are so often justly com- plained of at Nice, are only rarely experienced at Monte Carlo. But Nice is eight times the size of Monaco, as regards population, and as the latter place grows, the present evils are sure to augment, unless proper precau- tions are taken. " The sewers, intended only for surface waters, now dis charge into the landlocked little harbor, which is an ad- ditional nuisance, fraught with potential danger for this place. In regard to the provision of amusements, more particularly concerts and theatricals, Monte Carlo stands without a rival on the Riviera." Patients should always be warned against visiting the Casino, even as lookers-on, for the dust-laden, stifling air of the unventilated rooms is responsible for many ill- nesses which could have been avoided. The indications for spending a winter season at Monte Carlo or Monaco do not differ from those which apply to the Riviera generally, and the reader is accordingly referred to the article on this subject which appeared in Volume VIII. of the Handbook. With Americans Monte Carlo is a favorite resort, and one is sure to meet numerous countrymen there every winter. Edmund C. Wendt. MONTMIRAIL. A watering-place in the Department of Vaucluse, France. Location.-Montmirail-Vacquarais is a small village, possessing several purgative and one chalybeate spring. It is not well known outside of France, but as the really efficacious waters are now exported in large quan- tities, it will probably soon acquire more of an interna- tional reputation. The place is pleasantly situated be- tween Orange and Carpentras. Access.-The village of Montmirail is reached by way of Orange, on the Paris, Lyons & Mediterranean Railroad. It is one and one-half hour's drive from the station. Analysis.-The principal spring of Montmirail is rich in sulphate of magnesium, and resembles the celebrated Seidlitz and Piillna waters. According to Mr. Henry one thousand grammes of the Source verte contain : Grammes. Sulphate of magnesium 9.31 Sulphate of soda 5.06 Sulphate of lime 1.09 Chloride of magnesium 0.S3 Chloride of sodium 0.18 Chloride of calcium 0.18 Bicarbonate of lime 0.37 Bicarbonate of magnesia 0.16 Calcareous phosphates, silica, alumina, sesquioxide of iron, and arsenical principle 0.39 17.30 Traces of iodides, salts of potash and ammonia, and organic matter. The sulphate of magnesium imparts a decidedly bitter taste to the water, but purgation is not accompanied by griping pains or other signs of intestinal irritation. Indications.-These waters are chiefly employed in gastro-intestinal affections with a tendency to constipa- tion, in dyspepsia, abdominal plethora, diabetes, and affections of the spleen, and in some of the constitutional effects of malaria. Season, May to September. Accommodation.-There is only one bathing and thermal establishment writh a fairly good equipment. The boarding arrangements are on a modest scale. There is an absence of fashionable life. Edmund C. Wendt. MOUNTAIN SICKNESS. Ger., Bergkrankheit ; Fr., Mal des Montaqnes ; Sp., Puna (?). Mountain climbers have often described a peculiar train of symptoms from (SUPPLEMENT.) which they suffered in first ascents after reaching a cer- tain height above the level of the sea, and which system- atic medical writers have grouped together under the name of mountain sickness. The first mention we find of the ailment was made over two centuries ago, but for a long time no special attention was paid to it, as it was sup- posed to be due merely to the unusual exertion of climb- ing, and to be nothing more than a form of fatigue. Within the past fifty years, however, several writers have described the affection at length, and have even made as- cents for the sole purpose of studying it, analyzing the symptoms observed, and endeavoring with more or less suc- cess to discover the true cause of their production. Not- withstanding that the facts upon which our knowledge of mountain sickness is based, and which have led writers to regard the affection as one sui generis and due to a spe- cific cause, have, as was just mentioned, been accumulat- ing for more than two centuries, and have been collected by scientists in special excursions made for that special purpose, they are even yet fragmentary and insufficient to warrant the formulation of a definite and satisfactory explanation of the symptoms. Among the most recent observers of mountain sick- ness was Mr. Edward Whymper, who made ascents of some of the highest peaks of the Andes with the avowed object, among others, of gleaning some new facts bearing upon the effects of high altitude upon the human body. He did not accomplish this object as fully as he had hoped, for, although he made twelve ascents to vari- ous heights, he suffered from but one pronounced attack of the malady. This occurred during his first ascent, and appeared suddenly when his party had reached an eleva- tion of 16,664 feet (barometric pressure 16.510 inches). He and his two Swiss guides found themselves suddenly incapacitated for work of any kind. Respiration was hurried and was accompanied by spasmodic gasps or gulps. All suffered from intense headache and a feeling of general malaise and exhaustion. The dyspnoea seemed to be the most marked feature of the attack, for the suf- ferers could breathe only with the mouth wide open ; conversation was abandoned, being literally a waste of precious breath ; smoking became distasteful, and was moreover too difficult of accomplishment to be indulged in, even had it been otherwise desired ; eating was impos- sible, because of the interruption thereby occasioned to the one important occupation of breathing; and even fluids had to be taken sip-wise and as it were in stolen moments between gasps. The temperature was some- what elevated (38° C., or 100.4° F.), and the pulse was markedly accelerated. Recovery was very gradual, and indeed was not complete until the party had descended to their camp, at some distance below the point where they had experienced the attack. Even after recovery seemed to have fully taken place, Mr. Whymper says, he re- mained very weak, became easily fatigued, and was troubled with shortness of breath on the slightest exer- tion. None of the party suffered from nausea or vomit- ing, but this may have been because they were all so "knocked out" that they were incapable of any exer- tion, and possibly they might have had some pronounced gastric symptoms had they been able to move about at all, and thus tax their little remaining strength. This attack was experienced upon the occasion of the first ascent of Chimborazo, and, as before mentioned, at an elevation of a little over 16,500 feet. But it never recurred in any of the eleven subsequent ascents (one of them up Chimborazo again), although at one time they reached a height of 19,500 feet (barometer, 14.750 inches). They were able to remain at this elevation for twenty-six hours " without any serious inconvenience," although in all their ascents they experienced more or less lassitude and some dyspnoea, being always com- pelled, when in movement, to breathe with the mouth open. In looking about for an explanation of the phenomena of mountain sickness, Mr. Whymper naturally finds it in the diminution of atmospheric pressure, in the op- eration of which, however, he distinguishes two fac- tors, one permanent in its action and unavoidable, the 655 fountain Sickness. Mountain Sickness. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) other temporary. The permanent factor, and the one for which he thinks it improbable that tolerance could ever be established, is the reduced value of the air that can be inspired by ordinary efforts in a given time. As a result of this it becomes necessary to inhale a much larger quantity of air, and therefore to make habitually a greater number of inspiratory efforts in a given time, in order to bring to the blood circulating through the pulmonary capillaries a volume of oxygen equal to that supplied to it by ordinary respiration nearer the level of the sea. The second factor is the reduced pressure upon the surface of the body, as a result of which the air or gas within the body expands and presses with more or less force upon the internal organs. The symptoms so produced are temporary, and pass away as soon as the equilibrium is re-established between the internal and ex- ternal pressure, and they may even be avoided altogether by making the ascent very leisurely, and pausing at fre- quent intervals to permit of a modification of the pressure within the body sufficient to equalize it to that of the sur- rounding atmosphere. Although Mr. Whymper's observations were carefully and intelligently made, they are less useful as a contri- bution to the literature of the ailment than they might have been had he not been an experienced mountain climber. Both he and his guides had made numerous Alpine ascents, and had thereby become more or less ac- climated, if such expression may be allowed ; and as a re- sult the affection was not manifested in them to the same degree that it would have been in others unaccustomed to exertion at great elevations above the sea-level. One of the characteristics of the malady is that, as a general rule, it affects a person severely only upon his first ascent to a height of from ten thousand to fifteen thousand feet. The second time the symptoms are usually less pro- nounced, if too long a time have not elapsed since the first ascent; and when frequent excursions are made at short intervals, the system becomes so adapted to the changed conditions that the unpleasant symptoms of the malady are no longer manifested. Expert mountaineers seldom experience any inconvenience save under very exceptional circumstances, as for example when ascending to an un- usually great elevation, or when suffering from the effects of some debilitating condition. The first symptom noticed is an increased rapidity of respiration, w'ith a feeling of constriction of the chest. The pulse is accelerated and there may be some irregular action of the heart; a sense of fulness and pressure in the head, increasing at times to a throbbing pain, is present, and the person complains of a peculiar weakness of the legs, sometimes accompanied by rather sharp pains in the knees. Ordinarily these early phenomena are of slight intensity, and may be dissipated by taking a few deep in- spirations. Not so, however, if the individual persists in his determination to ascend beyond this point. Under the combined influence of increasing rarity of the atmos- phere and of continued muscular exertion, the symptoms grow more and more severe, new ones of a more grave character appear, and finally the sufferer is compelled by sheer physical exhaustion reluctantly to give up the struggle and acknowledge himself beaten by the quiet but invincible forces of nature. Rest, especially in a re- cumbent posture, affords relief at once to the more press- ing symptomsand gradually effects a cure of the ailment, even though the person do not descend to any lower level. The improvement is often, however, very slow, and the less distressing symptoms, such as moderate dyspnoea and a feeling of fatigue on slight exertion, may persist for days, or even weeks. The severer manifestations of the malady are of two classes, the one seemingly due to insufficient oxygenation of the blood, and the other resulting from diminished at- mospheric pressure. In the first category we find, in addition to the shortness of breath, drowsiness and lassi- tude, vertigo and the appearance of black spots before the eyes, intense cephalalgia, eructations, and frequently nausea and vomiting. There is usually also considerable thirst, accompanied by a feeling of dryness of the mouth and fauces. The weakness of the legs and sense of fatigue increase, until the patient becomes utterly exhausted and incapable of any further exertion. At the same time the reduction of atmospheric pressure causes a fulness of the venous system. The superficial veins of the exposed portions of the body are visibly swollen, and haemorrhages frequently take place from the mucous surfaces. Epis- taxis is common, and in aggravated cases bleeding from the stomach and intestines has been noted. Dr. Poppig, who lived for a number of years at Cerro de Pasco, Peru, some 14,500 feet above the level of the sea, has stated that new arrivals there were often unable to shave for the first few days of their stay, owing to the extreme tendency of the skin to bleed. He mentions also an instance of a person who was forced to give up playing on the flute, as every attempt to do so caused him to spit blood. If all the inhabitants were similarly affected, it will be conceded that an exile at Cerro de Pasco would not be without its compensations. The process of acclimatization is apparently a slow- one, when the individual remains constantly at so great an elevation, for Dr. Poppig says that no European is able, during the first year of his residence at Cerro de Pasco, to exert all his former strength, and it is only gradually, in the course of the second year, that he acquires ability to do so. Mountain sickness appears much earlier and is more pronounced in those who are walking than in riders. Aeronauts can ascend to much greater heights without suffering than can mountain climbers, for they are sitting quietly in the car of the balloon and are husbanding their breath. So it is, in less degree, with riders or those travelling up the mountain side in wheeled conveyances. Thus Dr. Esserwein tells us of a journey he made by rail from Callao up to a tow-n in the mountains lying at an elevation of about 11,500 feet above the sea. While sit- ting quietly in the car he felt no inconvenience, but im- mediately upon alighting at the station he was seized with dyspnoea, constriction of the chest, rapid and irregular pulse, and apparently some elevation of temperature, though he was unprovided with a thermometer and could not determine the degree of fever. Animals, such as horses, dogs, pack-mules, etc., born in the lowlands, suffer in the same way as men when ta- ken up the mountains, but animals born at high eleva- tions are exempt. The native mountaineers are likewise untroubled by the malady, and can run, hunt, and labor hard in other ways at heights at which new-comers are utterly prostrated and incapable of the slightest muscular effort. Shepherds are found grazing their flocks in per- fect contentment, both in the Andes and in the Hima- layas, at elevations of about 16,000 feet, but they can seldom remain for any length of time at much greater ele- vations than this. The loftiest inhabited spot on the globe is said to be the Buddhist convent of Hanle, in Thibet, which is situated at an elevation of 16,533 feet. Here twenty priests pass their time in prayer and medi- tation. It is true, this occupation cannot be regarded as, physically, a very exhausting one, yet it must have re- quired heavy labor to build the convent, and it would be interesting to learn the medical history of the laborers employed in its construction. The highest point in the Himalaya Mountains at which exercise was possible, was found by the Schlagintw'eit Brothers (" Reisen in Indien und Hoch-Asien " ) to be 21,982 feet. In the case of pack-mules driven beyond their pow'ers, death from mountain sickness is not very unusual, and the malady has been known to result in death even in men, who were unused to mountain climbing, and who persisted in their upward struggles until the heart gave way under the unaccustomed strain. It is said that cats invariably die in convulsions if taken up much beyond 13,000 feet. Alpine climbers seldom suffer acutely from mountain sickness, probably because they make graduated ascents, not often going to very great heights on their first trial. And, as was mentioned above, old and experienced climbers seldom experience any disagreeable symptoms, unless they have been living a long time on the plains, or happen to be run down by fasting, cold, or extraordinary fatigue. De Saussure, however, in an account of an 656 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Moiuitain Sickness. Mountain Sickness. ascent of Mont Blanc in August, 1787 ("Voyage dans les Alpes "), says that the guides suffered severely, when attempting to put up the tent in which they were to pass the night, at the comparatively slight elevation of 12,763 feet. He himself suffered not a little from shortness of breath, weakness of the legs, and vertigo, but the dis- tressing symptoms disappeared almost entirely when he turned so as to face the strong north wind, swallowing it, as he said, in great gulps. M. Charles Martins made an ascent to the summit of Mont Blanc in July, 1844, going from Chamounix to the Grand Plateau three times. The third time he reached this point his guides had an experience similar to that of De Saussure's guides, half a century before, suffering quite severely from dyspnoea and weakness while engaged in shovelling away the snow in order to clear a space for the erection of the tent. Yet these same men had suffered no inconvenience of consequence in their two previous trips to the same spot. The reason why they were attacked more severely the third time was doubtless, as M. Martins says, because they had made the ascent with unusual rapidity. Dr. Auguste Lepileur, who accompanied M. Martins in this ascent, has described the physiological effects of the trip upon himself and the others of the party in an article in the Revue Medicale for 1845. In August, 1869, Dr. L. Lortet, of Lyons, made two ascents of Mont Blanc, with the special object of study- ing the phenomena of the mat des montagnes. The first trip was made with a party of five, exclusive of the guides. The first night was passed at an elevation of about 10,000 feet. No special symptoms were noted at this station, except that M. Lortet had most pronounced ano- rexia and was unable to swallow a morsel of food. The first suffering was experienced after the party had as- cended above 12,800 feet, the symptoms then complained of consisting of drowsiness, intense occipital headache, thirst, and dryness of the throat, complete loss of appe- tite, and nausea but no vomiting. In some of those ex- amined the pulse ran up to from 160 to 172 per minute. There was a wretched feeling of malaise, and the sufferer had a sense of utter indifference concerning his own fate or that of his companions, very similar to the apathy of the sea-sick. On arriving at the summit this malaise passed away, but there was still shortness of breath and palpitation on the slightest movement. One of the party, who had not previously suffered, was taken suddenly, on arriving at the summit, with giddiness and vomiting of mucus and bile, which did not cease until the level of the Grand Plateau was again reached. On the occasion of the second ascent, a few days after the first, M. Lortet felt only great drowsiness, but even this passed away under the stimulus of the cold wind, and of the snow beating against his face. He had no malaise during the trip, and could now eat with relish, having no return of the anorexia of the first ascent; but his shortness of breath was extreme. An analysis of the symptoms manifested by the vari- ous members of the party developed some rather curious facts, especially in regard to the body temperature. Dr. Lortet made a number of observations on this point, and found that during the violent exercise of climbing, when near the summit of the mountain, the sublingual tem- perature fell in a remarkable manner. While sitting quietly the temperature was normal or nearly so (36.3° to 37° C. = 97.3° to 98.6° F.), but after a period of severe exercise it was greatly reduced, falling in one instance to a fraction below 32° C. (89.5° F.) ! After a few minutes of rest the mercury again indicated a normal tempera- ture. The writer remarks in support of the correctness of these remarkable findings, that subsequent experi- ments showed that violent exercise "would reduce the temperature of the body from three-tenths to seven- tenths of a degree centigrade (one-half to one degree Fahrenheit), provided the individual were fasting. He explains the phenomena as follows : When a person in the lowlands exercises violently there is a transformation of heat into force, but by reason of the fact that a suffi- cient quantity of oxygen is available, the production of heat within the body keeps pace with its loss, so that the temperature is constantly maintained at the normal fig- ure. In elevated regions, however, where the atmos- phere is rarefied, the expenditure of force uses up the body temperature more rapidly than the organism can supply it. This loss of heat is further increased by the rapidity of the circulation, the blood not having time to become properly oxygenated while passing through the pulmonary capillaries. As the blood is also driven to the surface, it is probable that increased radiation aids in still further cooling the body. M. Lortet's explana- tion is quite ingenious, but not very plausible. A much simpler elucidation of the problem is that the reduction of temperature was only apparent, or rather that it was purely local. During exercise the members of the party were forced to breathe through the mouth and thus the parts were cooled off; after resting for a while the mouth could be closed, and then its temperature rose again to that of the body. The writer has repeated M. Lortet's experiment of exercising in the open air at a moderate elevation, actively and even violently, while fasting, and he has never found any appreciable reduc- tion of the sublingual temperature as long as the mouth was kept closed. The author of these observations wras, however, so im- pressed with the startling fact of this reduction of tem- perature that he attributed the greater part of the phe- nomena of mountain sickness to it, although he was willing to concede that the vitiation of the blood by the accumulated carbonic acid might contribute to the results observed. He found that this loss of body heat did not take place in those who could eat regularly (pos- sibly because these same ones who were able to eat suf- fered less from dyspnoea), and this observation afforded him an explanation of the utility of the guides' habit of eating every two or three hours. Unfortunately, he says, it is not usually possible to make use of this discov- ery in the way of prophylaxis, as the novice in moun- tain climbing has such an unconquerable repugnance to food that he finds himself unable to swallow a single morsel. There are two other theories which have been advanced in explanation of the origin of mountain sickness. The more commonly accepted of these is that advocated by M. Paul Bert, who referred the production of the symp- toms chiefly, if not entirely, to the diminished supply of oxygen. He believed that man ordinarily inhales more oxygen than he actually requires, just as he usually con- sumes more food than is absolutely necessary for the support of life ; and just as one can accustom himself by degrees, and after more or less hunger and inconvenience, to a diet far below that which he ordinarily consumes, so he can gradually, at the expense of some dyspnoea and temporary suffering, habituate himself to dispense with this superfluity of oxygen. According to this theory the affection is due to the reduced oxygen pressure, as a result of which the red globules of the blood are able to absorb a smaller quantity of the gas than they do in the more condensed atmosphere of the lowlands.. The pro- cess of acclimatization is accomplished by an increase in the number of the red globules, whereby larger amounts of oxygen, proportionately to the inspired air, are absorbed, little or none of the gas taken into the lungs being wasted, as it is in the case of individuals living at or near the sea- level. M. Bert examined the blood of the llama of the Andes, and found that it was capable of absorbing, for every one hundred volumes, at least five more volumes of oxygen than was the blood of sheep feeding in the plains. It has been shown also by Regnard and Muntz, in ex- periments upon rabbits, that a reduction of atmospheric pressure, either natural on mountains or artificial under a bell-glass, was followed by an increase of the haemoglo- bin of the blood and a consequently greater power of absorption of oxygen. The other theory is one advocated with much skill by Dr. Georg v. Liebig, who believes that mountain sick- ness is not essentially due to a diminished supply of oxy- gen in the air, but that it is rather a consequence of one's inability to breathe properly at first in a rarefied atmos- 657 JUountain Sickness. Naphthalene. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) phere. Similar symptoms, he says, are often observed under certain circumstances in the lowlands, as when one tramps, for example, in deep snow or in soft and yield- ing sand. In a person thus exerting himself one may see the veins swell and the face become purplish, his breath comes short and panting, his heart's action is labored and rapid, there may be even vertigo and momentary nausea, and he is forced to stop now and again as his legs refuse to do their duty. The origin of these symptoms is laid by v. Liebig to restricted respiration. As long as the severe exertion continues the abdominal muscles are tense and the belly is drawn in, the diaphragm is pushed up and cannot descend sufficiently to permit of full and deep inspiration, such as is needed to pump the blood out of the turgid veins into the right heart. The lungs also are more or less compressed, and while the bodily exertion creates a demand for an increased supply of oxygen, the impeded respiration permits of less being inhaled. The diminished supply results of course in imperfect oxygen- ation of the blood, and this in turn manifests itself in the muscular weakness, especially of the legs, and in vertigo and nausea. In this case the actual cause of the distress is to be found in the compressed position of the lungs, and although the malady is never so aggravated in the low- lands, disappearing always immediately upon the indi- vidual ceasing his exertion and resting, it is nevertheless the same in kind as mountain sickness. The origin of the ailment, in the one case as in the other, is to be referred to a disturbance of the respiratory function. In the low- lands the symptoms arise only upon great exertion, but at high altitudes they appear spontaneously or after mod- erate exercise and persist often even when the subject is at rest. In a rarefied atmosphere, v. Liebig claims, the lungs are compressed as a result of the diminished re- sistance to expiration, and full expansion is effected only by a conscious exertion. The result of this diminished respiratory power is seen in the gasps and hurried breath- ing, in the venous turgescence, and in the consequences of diminished oxygenation of the blood above detailed. Dr. v. Liebig therefore argues that it is to the change in the density of the air, rather than to the reduced quan- tity of oxygen contained in it, that the phenomena of mountain sickness are rightly to be attributed. He does not think that the haemoglobin theory is sufficient to ac- count satisfactorily for the facts of acclimatization, but holds that w'e can, in the course of time, so alter the rhythm of respiration as to accustom ourselves to breathe deeply and slowly, without being always conscious of the necessary expenditure of strength. Neither of these theories seems to the writer to be suf- ficient in itself to explain satisfactorily all the phenomena of mountain sickness and all the facts of acclimatization. It would appear hardly probable, for example, that the absorptive power of the blood could have been so rapidly augmented, or that the respiratory rhythm could have been so quickly changed as to confer a practical immu- nity upon Mr. Whymper and his two companions after their single unpleasant experience. It is true that their former mountaineering may have brought about a per- manent increase in the amount of their haemoglobin, or that their past experience may have taught them to alter their respiratory rhythm unconsciously and rapidly to meet the necessities occasioned by the rarefied atmos- phere ; but in that case they ought not to have suffered so severely upon their first ascent of Chimborazo. It is more easy to reconcile the second of these theories with the observed facts than the first, and it receives some support also in the writer's opinion from what has been observed in relation to sea-sickness. There are numerous points of resemblance between sea-sickness and mountain sickness, although in many respects they differ very greatly. One theory of sea-sickness is that the phenomena are the result of a disturbed respiratory rhythm, and a form of respiratory gymnastics has been proposed as an efficient mode of treatment for mild cases of the ailment. That the taking of prolonged and regu- lar inspirations is useful in relieving a moderate amount of distress at sea, the writer can affirm from personal ex- perience, though whether it would cure a pronounced attack of the malady he is inclined to doubt. The same procedure will relieve the first signs of mountain sickness also, but it may be permitted to doubt its efficacy in re- storing a sufferer at fifteen thousand feet to his" normal state. It is most probable that both these factors-diminished pressure and lessened respiratory value of the air-are active in the production of the symptoms grouped under the name of mountain sickness, "but it is possible also that there are certain meteorological or other conditions, im- possible of detection by our present instruments of pre- cision, upon the presence or absence of which variations in the intensity of the observed symptoms may largely depend. The treatment of mountain sickness requires but brief notice. Rest is, of course, demanded, but even that is insufficient to bring relief in aggravated cases. No doubt deep and regular inspiratory efforts would be ser- viceable, but the immediate need for air is often so urgent that the sufferer can only gasp, and cannot be persuaded to take the time necessary for a prolonged inspiration. Oxygen would without question be of value for the re- lief of certain of the symptoms, whatever theory as to the causation of the malady may be correct, but ordinary mountain climbers are usually sufficiently encumbered with their necessary traps and cannot carry with them the apparatus necessary for making oxygen gas. Whym- per made some trials of potassium" chlorate, which might theoretically be thought useful in furnishing oxygen to the tissues, but his companions had an aver- sion to drugs and would not lend themselves readily to his experiments, so that it was impossible to determine what the effect of the remedy might be when given me- thodically and in proper dose. Fortunately, few people are called upon to ascend high mountains in the ordinary course of business, and those who do so from a love of adventure or ambition must make up their minds to take tlie unpleasant along with the agreeable. Of course, no one whose thoracic organs are not in perfect condition should ever attempt the ascent of a high mountain. Thomas Lathrop Stedman. Literature. The following are some of the more important works and journal arti- cles on the subject of mountain sickness which have been consulted by the writer in the preparation of the preceding account of the malady: Meyer-Ahrens, C.: Die Bergkrankheit. oderder Einfluss des Ersteigen grosser Hohen auf den thierischen Organismus. Leipzig, 1854. Payot, A.: Du mal des montagnes consid6re au point de vue de ses efrets, de sa cause, et de son traitement. Taris, 1881. Whymper, Edward : Travels among the Great Andes of the Equator. New York, 1892. V. Liebig, Georg: Ueberdie Bergkrankheitund IndicationenfiirHohen- kurorte bei Lungenleiden, Deutsche Medicinische Wochenschrift, 1880, vi., pp. 205 and 222. Die Bergkrankheit, Deutsche Medicinal- Zeitung, 1889, x., p. 305. Lortet, L.: Deux Ascensions au Mont Blanc en 1869 ; Recherches Phys- iologiques sur le Mal des Montagnes, Lyon Medical, I860, iii„ p. 79. Martins. Charles: Deux Ascensions au Mont Blanc, Revue des Deux .Mondes, March 15, 1865. MYELITIS. Little advance has been made during the last few years in our knowledge of this disease. Hayem and Parmentier have reported several cases of myelitis of blennorrhagic origin, but they are doubtful in char- acter. Dufour also reported a case which developed dur- ing the course of gonorrhoea, and the autopsy showed characteristic lesions in the spinal cord, but no bacterio- logical examination was made. Oppenheim has come to the conclusion that true pri- mary myelitis is a rare disease. He says that a revision of the clinical histories of the hospital cases under his observation shows that the large majority belonged to the category of so-called compression myelitis (generally from disease of the spine, latent caries) or, as in two cases, from a malignant tumor of the abdomen extend- ing to the spine. In some other cases post-mortem ex- amination showed syphilitic disease of the spinal mem- branes, which extended to the cord. Very rarely a case which had been regarded during life as myelitis was proved to be a neurosis, especially hysteria. Frequently a case which was first looked upon as myelitis was 658 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES, (SUPPLEMENT.) mountain Sickness. Naphthalene. found, in view of its subsequent course, to be a dissemi- nated sclerosis. A specially interesting case shows that a transverse myelitis may be simulated by a combined columnar disease : A woman, fifty-one years of age, was admitted to the hospital on October 24, 1888. Since August, 1887, she had suffered from weakness and pains in the legs, with formication, and has been paralyzed for the last three months. During the last few weeks there have been flexion contracture of the legs, disturbances of the blad- der, and a cincture feeling around the abdomen. At the present time she suffers from complete paraplegia with flexion contracture, increased tendon and cutaneous re- flexes, diminished sensibility to touch and temperature, incontinence of urine ; the upper limbs are normal. This condition remained unchanged except that the knee-jerk was subsequently lost. The case finally ter- minated fatally. The autopsy disclosed combined dis- ease of the posterior columns, the lateral and anterior pyramid columns. The diagnosis of chronic myelitis was also made very rarely (in four cases) by Oppenheim. When the cere- bral symptoms were taken into consideration, the large majority of the cases were found to be disseminated or multiple cerebro-spinal sclerosis. Oppenheim concedes that there is no longer any doubt of the intimate connection of disseminated myelitis (my- elo encephalitis) with infectious and toxic processes. It may develop : 1, in acute infectious diseases (variola, scarlatina, typhoid, erysipelas, gonorrhoea) ; 2, on the basis of syphilis, tuberculosis and malaria ; 3, in the puerperal state ; and 4, in the cachexia due to the growth of malignant tumors. Leyden divides the infectious diseases of the spinal cord into the following groups : a. Parasitic diseases in which the pathogenic micro- organisms develop directly in the cord. Such cases are very rare. They include acute myelomeningitis which occurs as the result of typical cerebro-spinal meningitis. Leyden has shown that in some cases the diplococci enter the cord along the connective-tissue septa, and pro- duce inflammation of the latter which extends to the white substance of the cord. Furthermore, capillary emboli appear in the cord as the result of ulcerative en- docarditis, the latter being due to the presence of staphy- lococci or streptococci. It is also probable that acute po- liomyelitis is an acute infectious disease, although the pathogenic micro-organism is still unknown. Spinal affections occurring in gonorrhoea are probably due to direct propagation of the gonorrhoeal process to the cord. b. Infectious myelitis due to the action of toxines formed during the infectious disease. One large group includes sequelae of acute infectious diseases. They generally appear as disseminated myelitis with coincident affection of the medulla and pons. This variety also occurs after traumatism, and after pregnancy and child- bed. c. Toxic myelitis which occurs after the excessive in- gestion of ergotin and spoiled maize, and in zinc work- kers (?). d. Anaemic or cachectic myelitis. Lichtheim found under such conditions myelitic processes in the posterior and lateral columns of the cord, but they did not possess a systematic character. The question with regard to the real nature of the so- called compression-myelitis of Pott's disease has not yet been definitely settled. The weight of evidence is in favor of the view that this condition is primarily a de- generation of the nerve-elements, due to the ischaemia which is consequent on the compression, but that at a later period an inflammatory condition develops in the degenerated parts. ' Leopold Putzel. MYRTOL. A constituent part of the essential oil, de- rived by distillation, from the leaves of myrtus com- munis, L. It is supposed to closely resemble eucalyptol. It is a clear liquid with a powerful but not unpleasant aromatic odor. It is recommended as a disinfectant and deodorant, but has no bactericidal action. In medicine it is used to replace the balsams in bronchitis, blenor- rhagia, and vaginitis. In small doses it improves the digestion and stimulates the appetite, but in larger doses it irritates the stomach. It is recommended particularly to remove the fetid sputum of bronchiectasis, and in gan- grene of the lung. It is administered in doses of two to five minims, in capsules, repeated two or three times a day. Beaumont Small. NAIRN. A Scotch sea-side resort of growing popular- ity. Nairn is a royal burgh of great antiquity, not f:y from Inverness, and pleasantly situated on the shore of the Moray Firth, at the mouth of the river Nairn. It is a healthy place, with a fine sandy beach, and is popularly referred to as the "Brighton of the North." According to Black (" Watering-places of England, Scot- land, and Ireland"), the climate of Nairn is "dry and bracing, and such is the influence of the sea on the air sur- rounding it that the extremes of temperature experienced at places more inland are not felt here. On no occasion during the last tw7enty-one years has the thermometer in the shade risen above 78.3° F., or fallen below 11.2° F. The annual mean temperature, calculated from a series of ac- curate observations, would seem to be 47.9° F. ; that of summer (April to September), <54° F., and of winter (Octo- ber to March), 41.8° F.; the difference between the means of these two seasons being 12.2° F. August, on an average, is the hottest month in the year, and February the cold- est. The air is driest in June and dampest in February. The mean annual height of the barometer, corrected to 32° F., and reduced to the level of the sea, is 29.810 inches. The highest elevation of the mercurial column thus corrected, during twenty-one years' observation, has been 30.881 inches, and the least, 27.998 inches ; the range of this instrument is smallest in June and greatest in November ; the annual average does not exceed 1.408 inch. The yearly rainfall does not amount to more than twenty-six inches ; the greatest quantity falls in October and the least in April." Nairn has been recommended as a winter-resort, but it has no just title to be so considered, as the meteorological data just given amply demonstrate. Edmund C. Wendt. NAPHTHALENE. In addition to the external use of naphthalene in the treatment of parasitic and other forms of skin disease, and as an antiseptic dressing, it has been extensively employed as an internal remedy in all condi- tions in which an intestinal antiseptic is indicated. Its insolubility makes it a very safe medicine, and enables its antiseptic action to be continued throughout the whole course of the intestinal canal. Professor Rossbach, of Jena, first employed naphthalene in acute and chronic intestinal catarrh, and its use has been extended to cholera infantum, summer diarrhoeas of children, dysentery, and all forms of dyspepsia and intestinal indigestion, accom- panied by flatulency and fermentative changes. It is given in doses of 2 to 6 grains to children, and from 15 to 20 grains to adults, repeated three or four times a day, its administration being preceded by a dose of castor-oil. Some have obtained good results in infants by giving it in f-grain doses every two hours. To adults it has been given in as much as 60 to 90 grains in the day. It has also been used as suppositories, 15 grains of naphtha- lene to 2| drachms of cacao-butter, introduced after an evacuation. It has proved of service in dysentery and in ulceration of the rectum when introduced as an enema : naphthalene, 5 parts, olive-oil, 200 parts. This may be introduced by means of an ordinary syringe, and repeated three or four times a day if required. Naphthalene has also been highly spoken of as an anti- septic for the treatment of typhoid fever. Its advocates claim for it a decided beneficial action in shortening the duration of the fever, a lessening of unfavorable symp- toms and complications, and a lowering of the death-rate. Dr. L. Wolff reported {Philadelphia Medical Wews. May 23, 1891) a series of one hundred cases, with a mortality of only two per cent., excluding certain deaths from causes outside the fever, and a mean duration of the fever of 659 Na plitlialene. Narcosis. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) 24.3 days. On admission calomel and soda was adminis- tered to empty the intestine, and this was followed by five grains of naphthalene every four hours, alternated with a few drops of hydrochloric acid; no other medica- tion was permitted excepting chemical antipyretics and cold sponging for hyperpyrexia. Dr. Wolff found that although it has no direct effect in lowering the tempera- ture, its continued use speedily produced lysis and a nor- mal temperature ; in cases in which it was at once discon- tinued the temperature rose again. It was found necessary to continue the drug for some time after the temperature became normal. He considered that at the onset of typhoid fever naphthalene may inhibit the devel- opment of the pathogenic microbes, so far that the disease could be aborted ; and that at any period in the disease over-production of the chemical toxines may be pre- vented, and the fever made to run a mild course. Naph- thalene has been widely employed in hospital and private practice, and still receives its share of attention with other intestinal antiseptics. The results of this treatment, how- ever, has not been uniformly favorable, and this, together with its disagreeable odor and taste, has proved a decided disadvantage and tended to lessen its employment. Other antiseptics without these disadvantages, notably salol, have replaced it to a great extent. Naphthalene has been recommended as an anthelmin- tic by Dr. Mirowicz (The Lancet, December, 1891). He considers it superior to all other remedies on account of the certainty of its action and the absence of all toxic effects. It has proved of service against all kinds of in- testinal worms, and its action is prompt and effective. One dose has caused the expulsion of a tape-worm, the head included, and in thread-worms and ascarides it has proved equally beneficial. Previous to administer- ing the drug the patient should be dieted with salted, acid, and spiced foods. It should be given on an empty stomach, and followed by a dose of castor-oil. The quantity for adults is from 8 to 20 grains ; a dose of 15 grains has usually proved sufficient; children may be given from 4 to 8 grains. It has also been used as an in- jection for pin-worms, the drug being mixed with one and a half to two ounces of olive-oil. The fumes of naphthalene have been employed with some success in whooping cough. A small quantity is to be placed in a dish and surrounded with hot coals ; it soon melts and fills the room with white fumes. To be effective the patient should inhale the fumes continu- ously until the cure is complete. The disagreeable taste requires it to be given in cap- sules or rice-paper, or in pill form. It may be formed into pills by mixing with half its weight of powdered marsh-mallow root and forming into a mass with muci- lage. When given as a powder it may be mixed with sugar, and its taste and smell disguised by a drop of oil of bergamot or peppermint. Beaumont Small. NAPHTHOL CAMPHOR. Camphorated Naph- thol.-The preparations and derivatives of naphthol, such as betol, beta-naphthol-benzoate, and microcidin, have in a great measure supplanted the drug itself, both for internal and external use. The combination of naph- thol and camphor, although known for some time, has recently been recommended for the treatment of tuber- culous glands, tubercular phthisis, diphtheria, and as a valuable antiseptic wherever such is indicated. It is prepared by rubbing together one part of beta- naphthol and two parts of powdered camphor. A viscid liquid results, insoluble in water, but freely miscible with oils. It should be kept in well-stoppered, dark- colored bottles, as it readily decomposes when exposed to air and light. Dr. Jules Reboul, of Marseilles, who advises its use in tuberculous glands, employs it by injecting eight drops directly into the gland tissue, and repeats the injection every second day. Should any matter have formed, it is first to be evacuated. In cases where the gland has been laid bare by ulceration, a tampon saturated with the naphthol camphor and placed in contact with the surface has produced a healing action, not only in the gland it- self, but also in the other affected glands in the neighbor- hood. The drug is absorbed and produces a beneficial action, both local and general in character. Its effect is prolonged, and the drug can be detected in the urine for twenty-four hours after an injection. The treatment is absolutely harmless and simple. In forty-seven cases reported by M. Reboul, twenty-eight were said to be cured and nineteen improved. It was also used in cases of tuberculous disease of the testicles with equal success. He injected four or five drops every eight or ten days into the tuberculous nodules on the epididymis and testes. In tuberculous disease of the lungs it is employed by be- ing injected directly into the parenchymatous tissue of the affected lung, two minims in two and a half drachms of olive-oil being used. As a local antiseptic it is said to be most active and effective. In diphtheria it has proved of much benefit, as it removes the false membrane and leaves a healthy healing surface. When applied to mucous surfaces it is frequently accompanied by pain, and requires an applica- tion of cocaine previous to its use. Beaumont Small. NARCOSIS, FROM ADMINISTRATION OF ANAES- THETICS. It is not the purpose of this brief article to trench on the broad field covered by the subject " Anaes- thetics," in this volume, nor to attempt to improve upon work there so ably done. Simply, in as practical and concise a way as possible, the writer will herein group, from the stand-point of clinical surgery, those methods of treatment of anaesthesia-narcosis in excess which seem to him valuable, beyond a peradventure ; and which should be clearly formulated in the mind of every oper- ator. Other modes of treatment, such as by electricity and by means of various drugs, of secondary or doubtful value, will not be touched upon. This accident is so appalling when actually at hand, and demands so cool a head and such instant resource, that no apology seems necessary for devoting to it a special, though short, chapter in this work. Following the teaching of Dr. H. C. Wood,1 in his re- cently repeated experiments, we agree that the treatment of both ether and chloroform narcosis should be identi- cal. And, while in experiments on dogs the respiration often seems first and chiefly at fault, experienced anaes- thetizers know that the heart (at least in the human sub- ject) often gives as early-sometimes earlier-warning of threatened failure. This is especially true of chloroform narcosis; and with either drug it behooves a careful operator to put an experienced man on guard, and not the usual tyro; and td see that both pulse and respira- tion are watched ceaselessly. It is, of course, best to prevent the peril under discus- sion, if possible ; and the writer firmly believes that with this idea in view it is always wise to administer, about fifteen minutes before the anaesthetic, as large a hypo- dermatic injection of morphine, guarded by atropine, as seems safe. For instance, gr. | to £ morphine sulphate, and gr. T|n atropine sulphate, in an adult. The reasons for this course are elsewhere fully dis- cussed (see Anaesthetics); one alone should be enough to determine the question, namely, that under this treat- ment much less of the anaesthetic is needed in order to keep the patient " under to the surgical degree." Con- sequently the dose of ether or chloroform being consid- erably lessened, the liability to poisoning is proportion- ally diminished. And incidentally it may be added, both morphine and atropine are agents of value to ward off shock due to the operation. Because of its great value as both a respiratory stimu- lant and a heart tonic, and for the reason named in the last sentence, the writer approves of the use for a day or two, in moderate doses, prior to any severe operation, of strychnine sulphate. Perhaps, when shock is actually present, it is of more value, if pushed to moderate strych- nization, than any other single drug ; and if this be true, its use in prevention of that shock when anticipated would seem sensible. As Dr. H. C. Wood has demonstrated,1 it is of decided value when used by needle during anaesthesia-narcosis; 660 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Naphthalene,, Narcosis. and here again its use in prevention seems occasionally indicated. An ounce or two of whiskey or brandy, before the anaesthesia is begun, can have none but a beneficial effect ; of this the writer is convinced. Being itself (in modera- tion) a cardiac stimulant, the alcohol is a safe addition to our narcosis; and, as is the case with morphine, will, though to a lesser extent, render unnecessary so large a dose of the anaesthetic as otherwise would be needed. But, during the operation, should excessive narcosis supervene-with or without the preliminary use of alco- hol-then the writer can but agree with Dr. Wood in thinking that alcohol as a remedial measure would be folly, since it is a narcotic, and the patient is already suffering from too much narcosis. There are better sys- temic stimulants at hand which are not narcotics. " Nothing can be more prone to produce fatal syncope than the commencement of the operation before complete anaesthesia has been induced ; for here we have a lower- ing of the vital functions caused by chloroform, and the shock of cutting the skin, especially over a sensitive area, communicated along sensory nerves whose con- duction is not yet in abeyance. Records of death under these circumstances (incomplete anaesthesia) show how often the fatality arises in cases where trivial, although painful, operations, such as reduction of dislocated limbs, circumcision, etc., are performed."'2 Finally, under this heading (prevention of dangerous narcosis) let us discuss a plan little advocated in print, but which has only to be heard to commend itself; namely, as a measure of precaution in a patient of feeble vitality about to be subjected to operation, maintaining a reserve-guard of pure blood, by accumulating this in one or more extremities ; to be released, however, in case of need from narcosis.* Of course, accumulation of blood in this way in the members is not a new thing at all ; but the purpose for which it is herein advocated is so, it would seem. Dr. A. C. Post, of New York, was, I think, the first to use this device in anaesthesia. Dr. Charles McBurney read a paper before the New York Surgical Society, about a year ago, speaking of the plan as one neglected and worthy of more frequent use. He demonstrated it there and then upon a man brought for that purpose. The technique as described by Dr. McBurney was as follows : " Immediately before anaesthesia is begun an ordinary Esmarch bandage has been placed on each arm and thigh, close to the trunk, and sufficiently tight to obstruct the venous return. The radial and posterior tibial ar- teries have been carefully watched, and only when the limbs have become loaded with blood (distinctly swollen) has the constriction been increased to such an extent that all circulation, arterial as well as venous, has ceased in the limbs. Anaesthesia is then begun, ether having been used by me in every case, and the inhaler being an ordinary one made of muslin and paper, and containing a little cotton. The storage of blood in the limbs has not affected the patient's facial appearance at all, and no peculiar sensation has been mentioned excepting a lit- tle complaint in one or two instances regarding the bands. The method has been applied to ten operative cases (and many more since this paper was written). At the beginning of the anaesthesia from one to two ounces of ether have been poured into the inhaler from a meas- uring-glass. The patients have been remarkably free from signs of irritation; that is, congestion of the face has not occurred, and struggling has been nearly en- tirely absent. Complete anaesthesia, so that the conjunc- tiva could be freely handled, has been accomplished in from three to five minutes. Coughing has occurred only once, and then for a very short time. Trembling of the limbs has not occurred at all. " The mouth has required wiping free from mucus only once. No mucous rales in trachea or bronchi have been heard in any case. During the operation the anaesthesia has been quieter and more perfect than is at all common with ether. ... As soon as the operation has been terminated and the dressings applied, the bands have been removed, and all four limbs raised. The rapidity with which patients have recovered from the effects of the anaesthetic has been very noticeable. Most of them have been able to talk intelligently and answer questions correctly within three minutes. Vomiting has occurred but once, and then to a slight degree only. None of the usual stupor has been noticed after the ether-cone has been removed." The purposes for which this device has heretofore been advocated are the relief of kidney and other overburdened emunctories, especially when these show signs of disease ; speed of anaesthesia and of waking therefrom ; less bleed- ing, during operations upon the head or trunk ; avoid- ance of deleterious effect of the anaesthetic upon more blood than is absolutely necessary ; shortening the period of bronchial and pulmonary irritation, which lasts until all the ether has escaped from the system ; prevention of vomiting ; and economy of anaesthetic. To these should now be added Dr. Webster's sugges- tion, which the writer has several times made use of practically when feebleness of the patient has made him fear anaesthesia-narcosis. Not all four limbs, as just de- scribed, but for this purpose one thigh will suffice. This is corded at the groin, at first slightly, permitting it to swell with accumulated blood, and then tightly enough to obstruct all flow in either direction. The limb should now be kept wrapped in a blanket, with warm bottles or bricks about it. In case of dangerous narcosis, release the band, elevate, and pour the great quantities of pure blood contained in the limb into the body surcharged with ether or chloroform. The good result of this needs no discussion. Of course the other and more usual plans of treatment are also to be used. Treatment of Narcosis.-Where respiration is mainly at fault, the heart being safe, Sylvester's method of arti- ficial respiration is our best treatment, beginning always, as in drowning, by the expulsive effort. The passage- way to the larynx must be kept free from blood, mucus, and vomited matters ; and either the tongue kept drawn well forward by a clamp on it (the mouth, meanwhile, being held open by a cork between the teeth, or any of the ordinary gags), or else Mr. Benjamin Howard's plan of raising the epiglottis should be employed, which is efficient if the nasal respiratory area is unobstructed. This latter plan is to over-extend the head as far as pos- sible. The mouth is closed, and " a chain of three links " is made tense by this position ; i.e., the genio-hyoid mus- cles, the hyoid bone, and the hyo-epiglottic ligaments. Consequently the epiglottis cannot fall over the entrance to the larynx, and the air passes in freely through the nose. Protrusion of the symphysis menti by the thumbs be- hind the rami of the jaw, is a plan often followed, in order to prevent obstruction of the larynx by the base of the tongue. The genio-hyo-glossi muscles are thereby drawn forward, in turn the glossi-epiglottic attachments are made tense, and the epiglottis thus lifted. Koenig's plan, suggested in chloroform narcosis, is intermittent pressure upon the chest, one of the thumbs being placed in a space over the heart (differing simply in this latter respect from Nussbaum's method) between the apex-beat and the sternum. And Maas' modification of this plan is one whereby the pressure aforesaid is made very rapidly-one hundred and twenty times per minute. Both, it would seem, must act mainly by frequent expul- sion of narcotized air, and admission of fresh ; and con- sequently must come under this heading-artificial res- piration. It is difficult to conceive that the thumb in an intercostal space over the heart can compress that organ appreciably or enough to excite it afresh to work, though we cannot deny the possibility. Inversion of the Patient.-This, the plan of Nelaton, is generally regarded as our first choice when the heart is * Dr. W. T. Aikens and Dr. L. M. Sweetnam, of Toronto, and Dr. Leonard Corning, of New York, have also all used and advocated this plan of sequestration of blood ; but not for the purpose mentioned by the writer of this article. He has not heard of its actual employment by others beside himself, in prevention of dangerous narcosis. The credit of the suggestion belongs, however, with Dr. David Webster, of New York. who. as the writer finds, published a note upon it in the New York Medical Journal for October 29, 1887. 661 Narcosis. Nasal Surgery. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) mainly at fault, although artificial respiration also aids a flagging heart. Dr. Chisholm, of Baltimore, depends exclusively upon this ; and although his extensive record of operations under chloroform (ten thousand) without a death certainly makes his opinion deserving of respect, I think there are few who will, with him, refuse to use artificial respiration and other valuable aids to resuscita- tion in addition to inverting the patient. The latter, upon the appearance of signs of suspended animation with failing heart, should be held from sliding off the table, which is meanwhile so tipped that the pa- tient's head is downward, and almost vertical. It has been taught that cerebral anaemia is hereby over- come through gravity, and, consequently, the nerve-cen- tres controlling heart and respiration being better sup- plied with blood are enabled thereby to do more efficient work. To the writer it seems that this explanation is far from the true one. In only one way can blood from the lower part of the chest, the abdomen, and lower ex- tremities, reach the brain, if the patient be inverted ; i.e., by being pumped through the heart. Certainly not by gravity alone. And since we know that mechanical dis- tention of the chambers of the heart by the circulating fluid is a most important factor in exciting cardiac con- tractions, the proper explanation is not far to seek. Rapidly repeated compressions of the chest, with both the surgeon's hands, in its lower-epigastric-portion, meanwhile, will aid expulsion of narcotized air ; and fol- lowing each such emptying of the lungs by the surgeon, the Nelaton posture (by dragging on the pectoral muscles through the weight of the arms hanging by the sides of the patient's head) causes a mechanical inspiratory act after Sylvester's principle. So that if the patient be held sufficiently inverted, this position, with Nussbaum's treatment (just mentioned) will render Sylvester's need- less. The writer prefers this combined method (Nelaton- Nussbaum) to Sylvester's, where both heart and respira- tion are failing ; and this is certainly the rule rather than the exception. Heat.-It cannot be questioned that among methods of exciting a narcotized heart to resume work, one of the most efficient is heat. A quart of hot water injected by syringe into the rectum, while the patient is inverted as just described, is standard treatment. The patient's body and limbs should not be left unclothed to be chilled, but should be wrapped in warm blankets. The late Dr. Sands, of New York, has stated that he valued most highly moist heat over the heart. The writer has seen not only this gentleman, but others of the best-known surgeons in New York, cause a blister several inches square on the precordium by application of steaming hot cloths during dangerous anesthesia-narcosis. Dr. Charles McBurney has recently said in a letter' to the writer, " When the heart flags seriously in ether and chloroform narcosis, I regard very hot applications di- rectly over the heart as of decided value as a means of stimulating that organ to renewed activity. ... I like the idea of your arterial saline injections very much, and shall use it at the first opportunity." The latter sentence has reference to a plan, devised by the writer, whereby heat may, with infinitely more di- rectness and efficiency, be brought to bear on the heart. This is, to pump hot salt-water directly into the blood-cur- rent, and thereby stimulate both heart and respiratory centre in the medulla. This is so self-evidently a useful proposition as hardly to need argument in its defence. The wonder is that it was not long ago used for this purpose ; but, so far as the writer can discover, it has not heretofore been suggested. If, as is generally admitted, heat applied over the heart can stimulate that viscus-whether directly, by extension through the chest-wall until felt by the apex-beat, or re- flexly-how much more efficient must be that stimulation when that heat is brought into the heart-chambers, in the circulating fluid ! The temperature of the salt-water used should be as hot as the hand can possibly support. This will be 49° C. (120° F.) ora trifle less ; and therefore the thermometer need not be employed. A much higher degree of heat than this could safely be used ; since globulin only co- agulates at 70° C.3 (158° F.), and serum-albumin at 72° C.4 (162 F.) ; or about 40° F. hotter than the hand can bear. At the temperature first mentioned (120° F.) the writer has recorded5 a number of cases of haemorrhage so treat- ed, with excellent results ; and Dr. Edwin Sternberg, of New York, two more, with recovery ; whereas others which he had treated also by saline infusion, but at bodily temperature, died. It is demonstrated both by the writer's kymographic experiments, heretofore reported, and by the foregoing cases,_ that very hot saline infusion is not only safe but best, in severe haemorrhage ; and the same is true in the matter under discussion-heart-failure in narcosis from anaesthesia. The strength of the salt-solution ♦ is that normal to the blood serum ; roughly, a heaped teaspoonful of chloride of sodium to the quart of sterilized water. It is fair to assume that every operating-room, even in a private house, has water ready at hand that has been boiled and is still hot. This, some table salt, a Davidson syringe, and a coarse hypodermatic needle or a cannula are all the equipment needed. Remove the tip from the syringe, replace it with the cannula-hilt, and tie the latter in place with a thread. Disinfect this apparatus by pumping boiling water through it.f As to the amount of the solution to be used, perhaps a pint may be called an average. In a case immediately threatening death I should inject still more, and hotter. The method is also of use in yet another way-by bring- ing added pressure to bear upon the heart-chambers, just as with the inversion plan (Nelaton's). In haemorrhage or in shock threatening imminent death, the writer has urged, in recent publications, the injection of the hot infusion directly into the femoral artery; the aspirating needle (not as yet attached to the syringe) finding it readily where, under Poupart's liga- ment, it is large enough in calibre to carry a lead-pencil, and a bright-red drop of blood welling up in the needle proving the latter to be in place ; upon which the syr- inge-end is tied on and the injection begun.j: But here, in anaesthesia-narcosis, there is not a moment to waste. The hot salt-water should reach the heart, in considerable amount, very quickly ; more quickly than the hypodermic needle would permit. It is better there- fore to use the cannula, and while the assistant is at- taching the base of this to the syringe-end, and filling both with the hot solution, the surgeon opens a vein at the bend of the elbow-or the internal saphenous over the inner malleolus, or any other vein of fair size ; perhaps one in the operation-wound. Now the cannula is tied within this vessel and the injection given. In a properly equipped room the injection may be begun within a minute or two of the time it is determined upon. Of course if the patient is able to swallow, hot drinks- for example, black coffee-or other hot stimulants (save alcoholic), are indicated. Cold.-Although in the writer's opinion not so efficient as heat, the application of a piece of ice over the heart will sometimes refiexly excite more vigorous contrac- tions ; and similarly, ice within the rectum aids respira- tory efforts. Use of Drugs.-Our syringe and cannula are still in * We must never omit the salt-it would be fatal to mix plain water with the blood, as this at once dissolves out the haemoglobin from the blood-disks; whereas even so small an amount of salt as that named- six parts per thousand-renders it safe. + Of course well-equipped surgeons will not have to waste precious minutes by these steps, which may well be taken before the beginning of an operation requiring anaesthesia. * The only objection-a self-evident one-to this device, in haemor- rhage, is the hesitancy naturally felt to pierce so large an artery ; and this should vanish when one reflects that the most prominent plan now used bj' surgeons for aneurisms so placed as to be inoperable by ligation, and yet threatening rupture, is that of Macewen, of Glasgow, which is needling, and in which long needles are thrust-a dozen or so-into the sac. and left for many hours, to cause thicker deposits on the walls; and this with benefit, as a rule. If a diseased vessel can safely stand such treatment as this, it seems a mild inference that a sound artery can bear a single needle for a single half-hour. And such has been the writer's experience thus far. 662 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Narcosis. Nasal Surgery. (SUPPLEMENT.) place-the latter tied within a vein. Either mingled with the hot salt-water, or preceding it, or following it, we may use properly diluted aqua ammonite, a remedy of un- questioned value. The latter, strychnine, and digitalis comprise all the drugs recommended as of real use in this condition by Dr. H. C. Wood in his Berlin Report in 1890, who however did not experiment with strophanthus and many other heart-tonics. He says : " From fifteen to twenty-five minims of the aqua ammonite fortior, di- luted with four times its bulk of water, should be thrown directly into a vein of the arm, and repeated in fifteen minutes if necessary."6 The same drug may be exhibited by inhalation, with some caution, as it is capable of causing violent local in- flammation where used in excess. The only hypodermic abscess for which the writer has ever been personally re- sponsible was caused by an injection of aqua ammonite- and not the fortior-in a case of opium narcosis; not injected into a vein but into the subcutaneous connective tissue of the thigh. A slough more than an inch across resulted. Regarding amyl nitrite, it is certain from Burrall's clinical cases that it must be of some value, although Wood found it inefficient on dogs. Paralyzing as it does unstriped muscle everywhere, and consequently com- pletely dilating the blood-vessels, it must inevitably dimin- ish the resistance caused by vascular tone against which the heart has to work in pumping blood. If that tone be lost from complete narcosis, then it is plain that in such case, at such time, this drug would be almost useless, since its direct stimulant effect on the heart is but slight, and the rapid action of this organ under amyl nitrite is due mainly to depressing the inhibitory centres ; to which, in complete narcosis, the heart could hardly be expected to respond vigorously. Strychnine lias already been discussed. Both as a heart tonic and as a respiratory stimulant it is of great value. Regarding digitalis, the testimony is equally strong, so far as the heart is concerned. The writer carries regu- larly to his operations a solution of strychnine sulphate in equal parts of the tinctures of digitalis and strophan- thus, and has repeatedly used this combination by hypo- dermatic needle with benefit. Strophanthus alone he has not employed. However, since it is more rapid in action than is digitalis, has less tendency to contract arterioles than has the latter drug, and stimulates the heart vigorously and very much like digitalis, it is obviously indicated. Two remaining devices the writer has never seen used ; but he cannot doubt their value in absolutely desperate cases. This has been repeatedly demonstrated on the lower animals. One of these is mechanical stimulation of the heart by a long, slender needle passed through the anterior chest-wall ;7 and the other, introduction of a finger through a cut in the prsecordium, thus permitting intermittent pressure on the heart; to be repeated some twenty times, at the rate of seventy to eighty times a minute. It is not necessary to empty the heart thereby; a slight pressure will drive on some blood.8 In conclusion, it is perhaps needless to say that sur- geons employ not one but as many as are deemed wise, at once, from this list of weapons against an enemy that comes unexpectedly and kills quickly if at all. Every moment is golden, and indecision or unwise choice may, in a matter like this, cost a life. Robert II. M. Dawbarn. 1 Berlin Report, 1890. a Anaesthetics : Mr. D. W. Buxton, 2d edition, 1892, p. 122. 3 Kirke's Physiology, 11th edition, p. 846. 4 Dalton's Physiology, 7th edition, p. 80. 6 Medical Record, January 2, 1892 ; also November 12, 1892. 6 Wood's Therapeutics, 7th edition, p. 330. 7 D. W. Buxton (quoted), p. 125. 8 Mr. George Rowell, F.R.C.S., British Medical Journal, October 29. 1892. NASAL SURGERY, ASEPTIC AND ANTISEPTIC. The only reason why antiseptic methods have been em- ployed so little in nasal surgery is because surgical oper- ations in the nose have become frequent only within the last few years. It requires a few years for any line of surgery to develop antiseptic methods. In a very short time it is safe to predict that the rhinologist will be as particular in his methods of operating as is the abdom- inal surgeon of to-day. It would seem that either the general surgeon is over-careful in his attempts to secure perfect cleanliness, and over-zealous in the employment of aseptic and antiseptic agents, or nasal surgeons, so far as my knowledge extends, have paid too little attention to this matter of antisepsis in their operative work. If the germ theory of infection or of putrefactive fermenta- tion of Pasteur, Koch, Lister, and Watson Cheyne-a theory which is firmly believed in by nine-tenths of the leading American surgeons to-day-if this germ theory is proven, nasal surgeons need to be as particular as other surgeons in their methods of operating. In a discussion of a paper by the writer, entitled " An- tiseptic Nasal Surgery," by the American Laryngological Association, at its Tenth Annual Congress, 1888, various opinions were expressed as to the necessity of employing antiseptic measures when doing nasal surgery. The dis- cussion became very general. Several of the gentlemen said they did but little nasal surgery, because in their opinion there were but few cases that required surgical interference. A small number employed only the gal- vano-cautery in removing tissue, and were not favorably disposed toward cutting and drilling operations upon the bony and cartilaginous structures of the nose, so that, aside from the observance of strict cleanliness in treating nasal disease, they had had but little occasion to employ antiseptic solutions. I would like to add, in parentheses, here-and I shall refer to it again-that the application of the galvano- (that is, the actual) cautery to open wounds affords one of the most effective means of pre- venting the absorption of septic material. Gerster 1 says "the actual cautery is the most effective sterilizer." It may be true, therefore, that if only the galvano-cautery is used in removing nasal obstructions there is little need to employ other antiseptic precautions. Strict cleanliness before operations, and application of the ac- tual cautery to the wound would perhaps satisfy most aseptic operators. While it is true, however, that the majority of rhinologists do make use of the saw, scis- sors, and trephine, so short a time has elapsed since these instruments were perfected, and also, indeed, since nasal surgery has assumed its present large proportions, that it is perhaps still too early to pass judgment upon the question whether perfect asepsis and antisepsis are attain- able in nasal surgery. A second reason for the lack of attention paid to the use of antiseptics in nasal surgery is that the wounds inflicted by operations are very small as compared with those which the general surgeon has to treat; but the advan- tage the nasal operator possesses in the loss of a smaller extent of surface tissue is more than equalized by the peculiar conditions of nasal wounds, and these conditions furnish the third reason why antiseptics have been held at so low a value by nasal surgeons. It is far more diffi- cult to employ antiseptic methods effectively in the nasal cavities than upon the surface of the body or in the ab- dominal or pelvic cavities. Not only is it wellnigh im- possible to obtain an aseptic condition before operations, as can be done on the surface of the body, by thoroughly scrubbing with soap and water, and sponging with a solution of carbolic acid or bichloride of mercury, but the nasal wound is subjected to all the conditions which are deemed most favorable to the generation and propa- gation of micro-organisms, viz., heat and an abundance of moisture and oxygen. Watson Cheyne 2 says: "The ideal result of wound treatment is seen in the repair of subcutaneous injuries." He might have cited nasal wounds as the most unfavor- able illustration of wound healing. The decomposing nasal secretions add to the fertility of the soil which is most favorable to the development of pathogenetic mi- crobes. The swelling of the tissues within the bony nasal walls prevents effective drainage, one of the safe- guards against septic absorption, and the pent-up secre- tions furnish ample septic material until the absorbents are satisfied. We find, therefore, in nasal wounds 663 Nasal Surgery. Nasal Surgery. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. caused by operation both varieties of the "obstacles to repair " which are recognized by writers-the mechani- cal and the chemical. The mechanical are present in the particles of bone, cartilage, or soft tissue, or in the atoms of dirt which remain in the nasal cavities unless great care is taken to wash them out, while all the usual conditions of nasal wounds favor putrefactive fermenta- tion, which is the basis of the chemical obstacle to heal- ing. In endeavoring to mention all the difficulties lying in the way Of the practice of aseptic nasal surgery, we must not forget that the peculiar anatomical structure of the nasal tissues and the peculiar physiological function they perform, furnish additional hindrances to the proper treatment of wounds. If an attempt is made to exclude all air from an ulceration on the septum, by covering it with a protective and sealing the nasal orifice, we have the evil results which are caused by the irritation of these packings in the nostril. The erectile tissues will not bear the contact of a foreign body with impunity, the dressings disturb the vaso-motor reflexes, and the nostrils are filled with mucus and serum, which wet the dressings and render them less effective. In view of these difficulties the question may be asked, Is it possible to obtain an absolutely aseptic condition for the healing of nasal wounds? We think not. If this is true, is it the duty of the nasal surgeon to use all antiseptic methods possible ? Are we depriving our pa- tients of any degree of safety or comfort by treating nasal wounds as the general surgeons treated all wounds before antiseptics were known ? To make the question still more tangible : Do we see symptoms of septicaemia more frequently following those nasal operations where no antiseptic precautions are observed, than those which are protected by every effort to exclude disease-bearing germs ? Our experience would say, yes, emphatically. We believe that few patients would die if nasal wounds were made with unclean instruments ; but everyone is en- titled to every safeguard which protects his life, and which adds to his comfort. Our patient must not be put to bed because of a small nasal operation. It is possible to do nasal surgery in such a manner that his business will not be interfered with. I shall not at this time discuss the point whether there is more surgical work performed in the nose than is requisite or judi- cious. There should be no debatable ground as to how it should be performed. In 1888, before antiseptics were generally employed, when investigating the value of antiseptic methods in nasal surgery, I found that it was almost the universal testimony of those who used the knife, the saw, the scissors, and the trephine, that constitutional disturbance, more or less marked in character according to the amount of tissue removed or the extent of surface denuded, fol- lowed a certain percentage of these operations. These symptoms may be stated as commencing in from twelve to forty-eight hours, with slight chilly feelings, occa- sionally with a chill, and followed by a rise of tem- perature ranging from 99.5° F. in mild cases, to 103° F. in severe ones, headache, pains through the eyes, nose, and forehead, and in the back and limbs. The patient feels too ill to engage in any business. Men of nervous temperament remain at home for a day or two, and women stay in bed. These patients seem to be extremely nervous and irritable, and they do not thoroughly regain their equilibrium for some time. Some of the above symptoms occurred in some degree after, perhaps, twen- ty-five per cent, of the cutting, sawing, or drilling oper- ations on the nose. Of the severe cases I have seen but one in my practice, and that was not in any sense grave. I may describe it. In the spring of 1887 a young man came to me with his left nostril almost entirely stopped with cartilaginous deflection. I remember him as one of the most nervous patients I ever saw. The trephine driven by the electric motor was used. The operation lasted but a few mo- ments. Haemorrhage was not severe, but it was persist- ent, and I placed an ordinary cotton tampon against the wound. The patient came to the office the next day. I (SUPPLEMENT.) removed the plug and washed the nostril with a carbo- lized solution, but, as the bleeding continued, I put in a second tampon. I saw the patient at his house the next day. The tissues over the left nostril and cheek were swollen and red, the left eye was almost closed by oedema of the lids. The patient had had chilly feelings the night before, and 1 found his temperature 102.5° F. He exhibited the nervous irritability spoken of. I re- moved the plug and washed the nasal cavities with car- bolized solutions. He began to improve the next day, and was about in four days. In another case, operated upon in 1886, after the use of the galvano-cautery on the septum, the patient suffered from constitutional symp- toms ; temperature, 101.5° F. ; and on the second day after the operation an erysipelatous blush showed itself on the nose and for a short distance on the cheeks. This lasted only twenty-four hours and the patient quickly recov- ered. I formerly saw numbers of cases where the patient felt uncomfortable the second day after an operation on the septum. There was probably some slight rise in tempera- ture in all these cases. It used to be common enough in dispensary practice to have patients return a few days after a cautery or drilling operation on the nasal septum, and say that they had felt quite ill for some time after the operation. My attention was most forcibly called to the serious results which may follow nasal operations by the un- comfortable experience of a prominent surgeon of New York. He was operated on by a physician of experience in nasal work. A cartilaginous and bony convexity of the septum was removed by a revolving drill The work was done under chloroform. The second day after the operation the nostril was closed by inflammatory swelling. The patient had a chill on the evening of the second day, and for seven days afterward the tempera- ture ranged from 103° to 104° F. ; slight chills were frequent, perspiration abundant, albumin in the urine. The nose, eyes, and face were considerably swollen. The patient lost flesh so rapidly and was so depressed men- tally that fears were entertained at one time that he would not recover. He convalesced slowly, and was un- fit for work for six weeks. In conversation with me about his case he criticised in strong language the lack of antiseptic methods employed by nasal surgeons. He himself, a strong advocate of all antiseptic precautions, and most particular in his practice as a general surgeon, styled the old-time methods by the more expressive than elegant term of " rotten surgery." There was no doubt but that he had suffered from a severe attack of blood- poisoning, the "septic intoxication" of Cheyne, the " traumatic infectious " disease of Koch. Absorption of putrid matter had taken place through the denuded carti- lage and bone of the nose, and, as a consequence, he had almost lost his life. I have heard of other serious cases, but have no authentic history of them. But this all oc- curred from 1886 to 1888. The constitutional symptoms which follow operations in the nasal cavities, even where no antiseptic precau- tions are resorted to, may not be severe nor long contin- ued. The patient's life is rarely endangered, but his comfort may be seriously interfered with. There are a number of rhinologists who do not perform cutting or drilling operations upon the nose because they fear the constitutional disturbance that may follow such opera- tions. As one physician expresses himself in regard to these operations, he " prefers to be on the safe side." Is it not possible to operate freely in any nasal case where good judgment advises, and, by employing strict antisep- tic precautions, always be on the safe side ? General symptoms, which appear during the first twenty-four hours after a nasal operation, may properly be attributed to shock and the reaction after shock. The amount of shock will depend upon the temperament and general health of the patient. Sex seems to have little significance. Shock will be in proportion to the amount of tissue removed, the extent of surface laid bare, the amount of pain inflicted, and the quantity of blood lost. The degree of shock is also in direct ratio with the length 664 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Nasal Surgery, Nasal Surgery. of time consumed in operation. Shock seems to be greater when the nasal septum is wounded than when the soft tissues are injured, but this perhaps is because the saw, scissors, or trephine are rarely used on soft tis- sues. All the symptoms which may be fairly attributable to shock following the small operations upon the nose should be over in twenty-four hours. For example, a cutting operation is performed upon the septum, and in a few hours the patient may feel generally shaken up- with headache, neuralgic pains about the eyes, nose, and teeth ; he may feel weak and perhaps even faint; re- action declares itself in a slight rise of temperature, not more than 99.5° F., which subsides in twenty-four hours. We should not confound such constitutional disturbance with symptoms which begin later, last longer, and are more pronounced-symptoms which surgical writers formerly grouped under the names of "traumatic" or " surgical" fever. The transitory disturbance called shock subsides as soon as the nervous system has had time to recover its equilibrium. But neither shock to the nervous reflexes nor mechanical disturbance of the nasal circulation is considered any longer competent to explain the systemic disturbance which was called "surgical fever" by the operators of twenty years ago. Thanks to the investiga- tions of Pasteur and Koch, and to the antiseptic surgical procedures elaborated by Lister, traumatic fever is no longer a legitimate disease which follows all surgical operations. The presence of marked constitutional dis- turbance, chills, and high temperature after the severest operation now reflects unfavorably upon the methods employed by the operator, and the old "laudable" pus, teeming with germs of suppuration, has been proven to be an evidence of wound infection. The belief that symptoms such as we have described were caused by the action of micro-organisms, and w7ere not, as Billroth 3 has it, "the general accidental diseases which may accompany wounds," had been suggested at the beginning of this century; but, in 1831 Braconnet stated the opinion that micro-organisms produced virulent principles which acted as ferments. In 1836 Donne dis- covered microscopic organisms in the pus of chancres. In 1848 Fuchs spoke of the presence of bacteria in some of the septic diseases of animals, and Pollender, in 1850, discovered bacteria in the blood of cattle dying of char- bon. In 1861 Pasteur began his remarkable demonstrations, proving first that butyric fermentation was effected by an organism, and in the next year that there existed in the air countless organized corpuscles which were the germs of fermentation. In 1863 he stated that putrefac- tion was determined by ferments of the vibrio species. This theory of the relation of putrefaction to fermenta- tion was quickly and naturally applied to pathological conditions, and the germ origin of splenic fever was soon demonstrated. Pasteur was first to maintain that septicaemia. was of germ origin. Koch has demonstrated, by inoculation in animals, that a number of diseases similar to those in men are caused by a specific microbe. Pathogenetic mi- crobes have been demonstrated in erysipelas, gonor- rhoea, anthrax, empyema, tuberculosis, osteomyelitis, etc. Rosenbach,4 of Gottingen, after painstaking experi- mentation, denies the possibility of the formation of pus by mechanical, physical, or chemical means if microbes are excluded, and Ogston5 has also quite clearly shown that all suppurative processes are caused by micro- organisms. Gottstein/ of Berlin, says that the microbes found in pus probably exist in a latent way on the skin, and in the mouth and nose, and become active only when a wound is produced which gives them access to the blood- tissues, or rather furnish an opportunity for the absorp- tion of the products of the micro-organisms-the so-called ptomaines, or the sepsin of Bergmann, or the " putrefac- tive alkaloids," or the excrementitous products of the mi- crobes mentioned by other writers. Gottstein further says that this absorption continues until an aggregation of leucocytes furnishes a barrier which prevents its fur- ther progress. This dam of leucocytes is the granulation tissue which is present in old ulcerations, and its pres- ence explains why we have no symptoms of blood- poisoning in ulcerous coryza and other long-continued ulcerations of the nose. Gottstein asserts that these micro-organisms are the cause of traumatic infectious diseases. Cheyne7 remarks: "The antiseptic method is based on the germ theory of fermentation and putre- faction, and not necessarily of infectious disease." Ros- well Park 8 says : "The lowest forms of vegetable life are the cause of all forms of fermentation, only a certain number of which are putrefactive." This latter fact granted, antiseptic surgery has given its reason without discussing in detail the origin of surgical diseases. Some one has said that " antiseptics should be used to supple- ment cleanliness." Gerster1 says in his text-book that " modern wound treatment is based entirely on the old and well-known principles of the preservation of organic substances." I cannot do better than to quote once more from Cheyne,2 whose very intelligent writings make the subject of antiseptics a very attractive one. He says: " When a wound is large, and no antiseptics are used, absorption takes place, and we have in a few days trau- matic fever, and that the symptoms of septic intoxication are due to the absorption from the wound is proved in that the symptoms subside when granulation takes place." The bacteria which are found in the nostril may be harmful or harmless. Nature may or may not be able to prevent the entrance of septic germs through surgical w'ounds of the nose, or render them innocuous after their entrance. These considerations remain to be settled by bacteriological study, but the experience of some years in nasal surgery has fully satisfied us that our patients suffer far less after operation from constitutional dis- turbance, and the wounds heal more quickly, when they are somewhat protected from external influences. Dr. Jonathan Wright, of Brooklyn,11 has made a careful study of the various kinds of bacteria which he found in the healthy nose, and if space allowed it would be of inter- est to cpiote largely from his article, " Nasal Bacteria in Health," but a few results must suffice. He found that the bacterial forms varied very much according to the dry or moist condition of the streets, and the amount of wind existing. The staphylococcus pyogenes was by far the most frequent variety found. The investigations of many workers in this field have demonstrated that this form of bacterial life is found upon all the mucous sur- faces and upon different portions of the human body. Whether this particular germ is the one which is to be feared after nasal operations remains to be decided. The many conditions which are necessary to the growth of this, as well as to that of the many other forms of micro- organisms, leaves us in doubt as to the influence they exert upon a nasal wound. They must be in sufficiently large numbers to overcome Nature's resistance. Although the staphylococcus pyogenes is found in abundance in the mouth, it is a significant fact pointed out by Wright,11 that infection never follows excision of the tonsils or uvula. Nasal wounds, however, are apparently much more ex- posed to pathogenic organisms than are injuries of other mucous surfaces, for the nostrils filter them out of the inspired current of air, as has been proven by Aschen- brandt13and others. Wright conducted a series of ex- periments which showed that while ten litres of labora- tory air contained four moulds and one hundred and twenty-five bacteria, it contained only one mould and twenty-four bacteria after its passage through the nose, This is not the place to give the various opinions held by ardent students as to the manner in which nature renders the septic germs harmless, whenever they have obtained entrance into the circulation. It is enough for our purpose to state that the larger number of investiga- tors believe that pathogenic germs are killed by the chemical action of the blood serum, while the minority, represented perhaps by Metschnikoff,14 hold that the real enemy of disease-bearing bacteria are the leucocytes. Those who argue against the value of using antiseptics in nasal surgery maintain that since it is impossible to 665 Nasal Surgery. Nephrorrliapliy. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. obtain anything like an aseptic condition of the nose, antiseptic precautions are almost valueless. They might as well say that since the nose cannot be made perfectly clean it is useless to employ any cleansing sprays what- soever. Were we ever so indifferent as to the importance of treating nasal wounds antiseptically, we cannot ignore the greatly improved results which surgeons have been able to obtain since they have employed antiseptic meth- ods. The largest operations are so scientifically per- formed in our hospitals to-day that we have ceased to wonder when we observe that there is less constitutional disturbance after an exsection of the knee, an amputation of the thigh, or an abdominal section, than formerly fol- lowed the loss of a finger or toe. A most interesting paper was read at the New York Academy some years ago, which brought out an earnest discussion. The writer advocated external operation for deep urethral stricture on the ground that in performing internal ure- throtomy proper drainage was obtained with great diffi- culty, and that urethral fever, the great bugbear of oper- ators, was due to sepsis and not to nervous causes. The discussion was as to the causation of urethral fever. I believe only one surgeon who discussed the paper indorsed the older theory, that urethral fever was due to reflex nervous causes. In extirpation of the tongue it is found that there is much less danger of septicaemia where pre- liminary tracheotomy is done, and it is thus rendered possible to employ antiseptic solutions and to partially exclude air from the mouth. There are two general methods of treating nasal wounds after operation, viz., the open and the closed methods. Among nasal surgeons of large experience there are strong advocates of each. Some operators believe that nasal wounds do well enough if left entirely alone. They do not fear infection, either from the germs which are habitually found in the healthy nostril, nor from those special micro-organisms characteristic of erysipelas, scar- let fever, etc. We should consider it unsafe to ad- vocate such indifference to antiseptic methods. They claim that the blood-coagulum is ample protection against wound infection. There seems to us to be many disad- vantages attending the "open" method of wound treat- ment, and 1st, the danger of haemorrhage. Strong solu- tions of cocaine are always used in cutting operations in the nose, so that haemorrhage immediately after the opera- tion may be slight, for the reason that the cocaine has expelled the peripheral circulation. The bleeding ceases and the patient is allowed to go on the street. The cir- culation in the nose is restored after a little, and profuse bleeding from the uncovered nasal wound may take place, if not to the danger, at least to the discomfort, of the patient. 2d. If it is granted that there is no danger of infection from the ordinary germs that are commonly found in the nose and in the atmosphere, should we leave nasal wounds exposed to the germs of erysipelas, scarlet fever, diphtheria, etc. ? To dispensary patients such ex- posure must be common enough. 3d. We have found that nasal wounds heal more quickly when covered by some antiseptic protective. We believe the majority of writers advocate some modification of the closed method of treatment after operation. We repeat what we have said before, that we think it is impossible to hermetically seal a nostril either by the method proposed by Kitchen15 or the very similar one proposed by Roe.16 This plan is to cover nasal wounds with flexible metal, such as tin, copper, or alu- minium, the metal shield to be fitted accurately to the wound, after it has been covered with antiseptic cotton or gauze. Our experience with all such appliances is that they are very difficult to adjust, and that most people cannot, or will not, wear them, because of the pain and discomfort they produce. Dr. Roe calls this the "asep- tic method as applied to intra-nasal surgery," because he claims that the metal covering entirely prevents the ac- cess of pathogenic germs to the wound. A method advocated by Dr. L. Freudenthal, in a paper read before the Academy of Medicine, in November, 1892, seems to us to promise more encouraging results. He (SUPPLEMENT.) covers the wound with a specially thick collodion, and he expresses the hope that this obtains for the wounded surface an aseptic condition. We have had no experience with this method. It is wise, we think, to follow some routine method in our attempts to secure as nearly as possible an aseptic condition of the nostrils and wound. The success of all antiseptic methods depends upon methodical detail. The methods which are advocated both before and after the operation are in no sense new, but I state them, because, as I have said, it is well to have a detailed routine. Something may be accomplished in the right direction if the patient is instructed to ■wash out his nostrils twice daily for some days before the operation, with a tepid saline or alkaline spray, such as a modification of Dobell's or Seiler's antiseptic tablets. I like a prescription of per- oxide of hydrogen, twenty per cent., containing one per cent, of cocaine muriate in solution. The peroxide of hydrogen cleanses to better advantage after the swellings have been partially effaced by the cocaine. A solution of salt and water, generously and carefully used, does more than cleanse-it acts as an antiseptic. A solution of mercuric bichloride, 1 to 4,000, sprayed with an atomizer is beneficial, but is apt to be irritating. Freudenthal sprays with sterilized water. Tavel's fluid, composed of salt, seven and a half per cent., and natr. calc., two and a half per cent., is recommended on the ground that it is a physiological fluid. The operator can wash out the nose with some one of these solutions just before operat- ing. A sterilized ten per cent, solution of cocaine may be applied to the portion of the nose to be operated upon. All instruments should be sterilized or placed in the usual carbolic surgical solution, and the hands of the operator made aseptic. I am in the habit of covering the portion of the nostril to be operated upon with clean absorbent cotton, wet with a solution of mercuric bichloride, 1 to 2,000, after the cocaine has been applied, and just before operating. This cotton is only left in position for a moment or two. After operating, whether with knife, saw, scissors, or trephine, care should be taken to remove all loose pieces of tissue, cartilage, or bone, with forceps ; the patient can assist by blowing the nose thoroughly. A layer of cotton wet with a solution of mercuric bichloride, 1 to 2,000, may then be loosely placed over the wound, not packed into the nostril. Such a loose layer of cotton becomes a suf- ficiently tight plug to check bleeding when the effect of the cocaine has disappeared, and the tissues of the nostril have become somewhat swollen. Plugging the nostril tightly for the purpose of stopping haemorrhage is usually unnecessary, and it causes painful irritation. We are in the habit of keeping patients at our office for ten or fifteen minutes after the operation. At the end of that time the loose cotton layer is removed, and if the bleeding has ceased, iodoform, iodol, or aristol may be dusted over the wound, and the wound again covered with a layer of iodoform gauze, or antiseptic cotton. Usually there is bleeding enough, to render the application of any powder impracticable, and the first layer of bichloride cotton is simply replaced by a second one, or by iodo- form gauze, which is left in position for thirty-six or forty-eight hours. We have not been in the habit of washing out the nose with any antiseptic solution after operation, but have been satisfied to allow the patient to blow it thoroughly. We believe somewhat in the protec- tion afforded by the blood coagulum. Roe advocates ir- rigation of the nostrils after operation with a hot solution of salt and bichloride, 1 to 4,000. It may be wise to check all bleeding by hot antiseptic irrigation, so that an anti- septic powder can be placed upon a fairly dry surface. Dr. O. B. Douglas, of New York, recommends the use of the solution of aluminium acetotartrate, 3 j- to 5 iv., as a substitute for other antiseptics. Cotton may be saturated with this solution and placed upon the wound, and left in position for several days, it is claimed, without danger of wound infection. After all covering has been removed from the wound at the end of forty-eight hours, the nostrils may with advantage be thoroughly cleansed with some one of the 666 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Nasal Surgery. Neplirorrliaphy. (SUPPLEMENT.) antiseptic solutions already referred to, and the patient can accomplish all that is necessary by spraying the nostrils twice daily with a proper cleansing prescription. While there is little danger of infection through nasal wounds after the lapse of forty-eight hours, they require considerable attention for many days, to hasten healing and to prevent the outgrowth of granulation tissue, which will again block the nostrils. Our belief may be stated briefly, in conclusion, that while it is impossible with our present knowledge and present methods to obtain a perfectly aseptic condition for nasal wounds, yet experience has demonstrated that patients suffer far less from constitutional disturbance after nasal operation, that bleeding is more surely con- trolled, and that nasal wounds heal much more quickly, when all reasonable antiseptic precautions are employed. Clarence C. Rice. the various viscera. In such cases the displacement is so general that the symptoms complained of should not be attributed to the mobility of the kidney alone. I have seen two such patients on whom the operation of neph- rorrhaphy had been performed by skilful operators with- out the slightest benefit. It is only just to state that a few careful observers, both physicians and surgeons, are still rather sceptical as to the existence of movable or floating kidney, and a cer- tain number of others who doubt the significance of this abnormality as a cause of severe symptoms, and who are still more doubtful as to the necessity or efficiency of any operation for relief of this condition. There is scarcely a man, however, who has devoted special attention to abdominal diseases, who questions the occasional occur- rence of movable kidney, and while a few of such spe- cialists do not look with favor upon nephrorrhaphy, yet this number is rapidly diminishing, The existence of both movable and floating kidney has been proven by thousands of observations on the examin- ing, operating, and autopsy tables. It is equally certain that such mobility is frequently the cause of painful, and in a few cases of grave, symptoms. It has been fre- quently proven that it is possible to secure fixation of the kidney by operation, and as a result of such fixation the patients have been entirely relieved of their suffer- ings. It certainly seems reasonable to conclude that with the methods now at our disposal we ought to be able to fasten the kidney so securely that it cannot break loose from its new attachments. If the sutures are passed directly through the substance of the kidney, and then through the muscles of the loin, it seems most rational to believe that such anchorage will, in the majority of cases, be permanent. The numerous cases where relief from all distressing symptoms has directly followed the operation, and where after a lapse of years there has been no return of the symptoms, would cer- tainly seem to prove, almost beyond a doubt, that the permanent fixation of the movable organ has been ac- complished. Still further proofs of the satisfactory re- sults obtained are afforded by the patients with thin and lax abdominal and lumbar muscles, through which the kidney can be distinctly felt so firmly anchored in place that strong manipulation fails to move it from its bed. In one of my own patients this condition is very mani- fest, and on examination three years after operation the kidney can be felt firmly anchored in a situation which, it is true, is rather lower than is normal, but which is suffi- ciently correct to free her from all pain, which formerly had entirely incapacitated her from work. More than this, several cases have been reported where the firm an- chorage of the kidney has been demonstrated both by autopsy and at secondary operations. Langenbuch re- ports a case where, several months after the original oper- ation, he reopened the lumbar wound on account of a fall which the patient had received, and he found the kidney firmly anchored. Tillman has observed at au- topsy, two months after operation, the kidney, which for- merly had an extensive range of motion, firmly fastened by newly formed connective tissue permeated by numer- ous blood-vessels, and intermingled with masses of cica- tricial tissue. Nephrorrhaphy is a justifiable operation in any patient whose life is made miserable by the distress caused by the movable kidney. Indeed in such cases operation should be urged. In other cases where moderate dis- comfort only is experienced the nature and dangers of the procedure, and its chances for relief or complete cure, should be explained to the patient, and she should then be allowed to decide whether or not she prefers to under- go the operation. In all cases it is a good rule to insist on the trial of some form of bandage or support before nephorrhaphy is undertaken. In comparatively few of the severe cases will a bandage be of benefit, but it is worthy of a trial. In no case, if the kidney is otherwise healthy, should nephrectomy be advised until nephror- rhaphy has failed. Mortality.-The operation is a comparatively safe one. In more than two hundred reported cases only three 1 Gerster : Aseptic and Antiseptic Surgery, p. 3. 2 Cheyne : Antiseptic Treatment of Wounds, p. 7. 3 Billroth's Surgical Pathology, p. 396. 4 Bosenbach : Mikroorganismen bei der Wund-Infection. 6 Ogston: Report upon Micro-organisms in Surgical Disease, Brit- ish Medical Journal, March 12, 1881. 9 Gottstein : Die Verwerthung der Bacteriologie in der klinischen Diagnostik. 7 Cheyne : Antiseptic Surgery, p: 359. 8 Park : Antiseptics in Surgery, Wood's Reference Handbook, etc., Vol. I., pp. 257, 258. 9 Gerster : Aseptic and Antiseptic Surgery, p. 5. 10 Cheyne : Antiseptic Treatment of Wounds, pp. 15,16. 11 Wright: Journal American Medical Association, September 21, 1889. 12 Wright, loc cit. 13 Aschenbrandt: Die Bedeutung der Nase fur die Athmung. Wurz- burg, 1886. 14 Metschnikoff, Elias ; Ueber eine spross pilskrankheit der Daphnien, Virchow's Archiv, Bd. cvii., S. 209. 15 Kitchen : Medical Record, January 7, 1888. 19 Roe : Medical News, March 28, 1891. NEPHRORRHAPHY. During the past ten years two hundred and fifty cases of nephrorrhaphy have been re- ported. The operation may now be said to rest upon a secure basis. The number of cases reported has been suffi- cient to enable us to determine what danger attends the operation, and what benefits result from this procedure. The details of the operation have been perfected, and ex- perience has proved that certain methods may be rejected as unsatisfactory. Several new methods for the firmer anchorage of the movable organ have also been intro- duced. Considerable light has been thrown on many of these procedures by experimentation on animals, which in recent years has been pursued, especially in France, with extreme care. A movable kidney is no longer looked upon as a rare condition. It is difficult to determine exactly in what proportion of cases this abnormality occurs. A marked difference exists in statistics on this point. Thus Lindner claims that one woman in every six has a movable kidney, while most other observers estimate the proportion among females as one in two hundred or three hundred. In males it is a much more uncommon occurrence. I feel sure, however, that it is a condition which is often over- looked, as, unless especially sought for, it will rarely thrust itself upon the examiner's attention. I feel sure also that often symptoms are attributed to other causes which in reality are due to the mobility of the kidney. It is certain that in many cases no symptoms will be caused by this condition. It may be asserted, I think, that in the great majority of cases it is the cause of but little discomfort. In other cases it may cause considera- ble discomfort, but yet the suffering is not severe enough to demand resort to operative procedures for its relief. It is only in exceptional cases that the pain experienced by the patient is so severe that operation is demanded. There are a few cases where the symptoms produced are of considerable gravity, but which are not suitable for operation, because of the probability that the nephror- rhaphy will fail to relieve these symptoms. In such pa- tients the mobility and displacement of the kidney is de- pendent on the general laxity of all the abdominal tissues, where an enormously pendulous abdomen has, by stretch- ing the various ligaments, dragged down and displaced 667 Nephrorrhapliy. Nervous System. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT ) deaths can be attributed to the operation. One of these occurred in the practice of a surgeon who does not be- lieve in antiseptic surgery, and another occurred in con- sequence of a dangerous method used in the fixation of the kidney. The mortality can be estimated as about one to two per cent. In what proportion of cases may we expect to effect a radical cure ? This is a difficult question to answer cate- gorically. The majority of cases cannot be watched for a sufficient length of time to be of much aid in this cal- culation. Certainly eighteen months or two years should elapse before we can decide that a permanent cure has been effected. The proportion of permanent recoveries ranges from fifty to seventy-five per cent., and of the cases operated on during the last four or live years it certainly will reach this latter figure and perhaps exceed it. By permanent cure I mean fixation of the kidney and per- manent relief from all bad symptoms. A certain pro- portion of cases are improved, while in others the kidney appears to be fixed and yet the symptoms persist. In this latter class of cases the diagnosis has probably been incorrect. Out of my own 11 cases of nephrorrhaphy 2 have been complete failures, 6 have resulted in complete cure, 1 has been improved, and 1 has disappeared from view. Operation.-The object is to firmly anchor the kidney in as near its normal situation as is possible. A number of different methods have been and are employed, but all procedures are alike in one point, that they aim to fasten the kidney to the lumbar muscles by means of sutures. They differ in two points, the nature of the suture mate- rial and the tissues which the sutures penetrate. The pa- tient should be placed in such a position as will make the space between the last rib and crest of the ilium as long as possible. This can best be accomplished by placing the patient partly on the side opposite to that on which the operation is to be done, and partly prone. Pads should be placed under the abdomen, and crowding up under the opposite ileo-costal space so as to make as prominent and large as possible this space on the side on which the operation is to be performed. The usual anti- septic precautions should be carefully carried out, thor- ough scrubbing with green soap, washing off with alco- hol or ether, followed by the antiseptic or aseptic solution favored by the operator. The incision down to the adipose capsule of the kidney is made as in other opera- tions. It may be either oblique, an inch below and parallel to the last rib, or vertical, along the outer edge of the erector spinae muscle. The latter incision is the one I very much prefer, and is the one generally adopted in nephrorrhaphy. The oblique incision, while perhaps equally as serviceable in other operations on the kidney, is, for the purposes of this operation, inferior to the verti- cal. The skin incision is made from the last rib to the upper border of the crest of the ilium, along the outer border of the erector spinae muscle. After division of the skin and cellular tissue and lower fibres of the latissimus dorsi muscle, the sheath of the erector spinae is opened and this muscle is crowded inward by retractors toward the spinal column. The division of the middle layer of the lumbar fascia follows and the exposure of the quad- ratus lumborum muscle, which is easily recognized by the direction of the coarse fibres from above downward. This is also crowded inward and the anterior layer of the lumbar fascia divided and the perirenal fat (adipose cap- sule of the kidney) exposed. During the operation it should be remembered that the pleura extends down to the twelfth rib, and sometimes a little below it, and care should be exercised to avoid opening it. This accident happened to me in one case, where the pleural cavity was punctured at a point one-eighth inch below the last rib ; no bad consequences followed. The kidney can by pressure from the abdomen be pushed into the wound, and it then remains to fasten it in place in its normal situation behind the twelfth rib. The following different plans have been adopted: 1. The adipose capsule, opened or unopened, is united by sutures to the edges of the incision. This was Hahn's original operation, but it is now nearly abandoned. 2. After freely opening the adipose capsule the sutures are passed through the fibrous or true capsule of the kid- ney. This is a method which has been often successful, but is gradually being susperseded by one of the follow- ing methods, which seems to promise better results. 3. After free exposure of the kidney the sutures are passed directly through its parenchyma. They are passed through a considerable portion of the substance of the kidney, and at such a depth that they completely control its movements. Two or three such sutures are used, and they penetrate the kidney for a distance of about an inch and a half, and at a depth of one-fourth to one-half inch below its surface. 4. The fibrous cap- sule is divided vertically for a distance of. two to three inches, and peeled off the kidney on each side till a raw surface of considerable extent is made, which is then brought into contact with the cut tissues in the loin. The sutures are then passed as in the last method, enter- ing and emerging through the capsule just outside the raw margin. It has been found from experimentation on animals that, when the kidney, deprived of its cap- sule, is brought into contact with the cut muscles of the loin, the union resulting is far firmer than when the unbroken capsule is brought into apposition with the same structures. The results of operation seem to be in accord with these experiments. The division of the capsule is supposed also to serve another useful purpose in the relief of tension from the kidney itself. The last-mentioned method appears to me to be the secur- est. I have operated according to the latter in four cases, and in none of them has there been any sign of relapse. The method does not seem to be attended with any special dan- gers. As far as we know at present the passage of sutures through the parenchyma of the kidney does not appear to cause any disturbance, either immediate or remote. It is even the exception to find red blood-corpuscles in the urine after these operations. Care should be taken, however, that the sutures are not tied too tightly, as otherwise they might cut the kidney tissue. I prefer to pass them threaded on a common round sewing-needle through the kidney itself. They can then be drawn through the muscles on each side of the incision by means of a handled needle. My own plan before tying these sutures is to unite the cut muscles carefully by means of buried sutures, thus shutting off the kidney from view, and then to tie the kidney sutures over the united muscles. In this way no tension is placed upon the kidney sutures. The skin is then united, and if deemed best a drainage-tube placed at the lower angle of the wound. In my later cases no drainage has been employed ; but if there be any doubt about the absolute sterility of the wound, sponges, instruments, or dressing, then by all means a drain should be inserted. Formerly it was the custom not to close the external wound by sutures but to leave it entirely open, packed with gauze, so that it might fill up with granulation tissue. It was considered that the adhesions so formed by means of granulation tissue were firmer than those obtained by a primary union. Various materials have been employed for sutures- silk, catgut, kangaroo tendon, silkworm-gut, and silver wire. The important point is that the material be thor- oughly aseptic. Probably chromicized catgut and silk are the best materials. The former will hold for several weeks and will then disappear. The latter will become encapsulated, as a rule, and cause no disturbance, but oc- casionally the system will not tolerate its presence, and it will be eventually discharged through a sinus. Silkworm- gut and wire, while easily made aseptic, and while very unirritating and durable, may be apt to cut the kidney tissue. A number of operators, principally of the Italian school, consider it wise to fasten the upper end of the kid- ney at a higher point than can be reached by the ordinary incision. To accomplish this they have resected the twelfth rib in whole or in part, and sometimes the elev- enth as well. To the periosteum of these ribs the sutures are fastened. In a few cases they have been attached to the periosteum without removal of the rib. This appears to 668 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Nephorrliapy. Nervous System. be an unnecessary procedure. It must certainly add to the dangers of the operation, and in one case it was to some extent responsible for a fatal result. Schachner has performed a number of experiments upon animals in the endeavor to replace the sutures " by natural stays in the shape of a pocket formed between the transversalis and internal oblique muscles." The method was success- ful in animals, but it remains to be proved whether or not it will be of advantage in the human subject. The subsequent treatment of the case is of importance. Considerable neuralgic pain is felt for the first week, or longer, shooting down toward the groin. This can be quieted in the usual way by opiates. It is of great ad- vantage to keep the patient fiat on the back for two or three weeks at least after the operation, and rest in bed should be maintained for another two weeks. This will necessitate confinement to bed for about five weeks, and another two weeks should elapse before the patient can resume business of any kind. No violent exercise should be attempted for at least four months. In a few cases lumbar hernia (of the kidney through the cicatrix) has followed nephrorrhaphy, but it is an accident of very rare occurrence. Andrew J. Me Cosh. NERVES, REGENERATION OF. A reunion by first intention of the severed ends of a nerve can no longer be doubted, although such instances are rare. This desira- ble result is owing largely to the adoption of the most rigid antiseptic precautions, and when obtained the re- turn of sensation begins within about twenty-four hours, soon to be followed by a return of motility. The most valuable contribution yet offered on this sub- ject has recently been published by Howell and Huber {Journal of Physiology, xiii., No. 5, 1892). Their investi- gations were partly physiological and partly histological. With a single exception dogs were used. The nerves experimented upon were the ulnar of the two sides, and in case of cross-sutures, the median and ulnar. An- tiseptic precautions were observed. Carbolized catgut, or catgut in juniper, was used for sutures. The cut ends of the nerves were in almost every case brought together by one suture on each side which passed through the epi- neurium, wounding the nerve-fibres as little as possible. In most cases the nerve was lifted with a thread and cut with sharp scissors. After a certain time the nerve was laid bare and irritability tested in various ways, and sub- sequently histological examinations were made. The chief results of this research are as follows : In none of the experiments was there union of the cut ends by first intention. In all cases the peripheral end degenerated completely throughout its entire length. During the first four days there gradually occurred a complete loss of irritability and conductivity in both sensory and motor fibres, which lasted until regenerative changes, as shown by histological investigation, set in. Irritability in all cases appeared first, after union was made, inthe neighborhood of the wound, and from that part spread centrifugally, apparently with great slowness. The gradual increase in irritability at any one level seemed to go hand in hand with the increase in the num- ber of newly-formed fibres, and not with a progressive regeneration in the single fibres. The return of irrita- bility to the sensory fibres was in advance of that to the motor fibres. With the beginning of the return of irri- tability mechanical stimulus was more efficient than elec- trical stimulus. This, the authors believe, is due to the fact that the nerve-fibres in the process of regeneration are in the embryonic stage, possessing but a low degree of irritability, and that the more violent mechanical stim- ulation is necessary to arouse them. Conductivity appeared before irritability. In other words, the nerve conducted impulses before it became excitable to direct stimulus. The return of function, which began to appear at the end of three weeks, was not perfect at the end of seven weeks, although nearly so at the end of eleven weeks. Although functional activity returns first to the fibres near the wound and spreads centrifugally, it does not fol- low from this that the fibres which first branch off from the trunk and have the shortest route to travel are the first to regenerate. The possibility of the functional union of two spinal nerves is proven, but indicates that the time required for the regeneration of the nerve-fibres is longer than in the union of the two ends of the same nerve. After complete severance from the nerve-centres of the peripheral end of the nerve, degeneration occurs throughout its entire extent. The degenerative changes and the subsequent regener- ation take place as follows : (a) Segmentation of the myeline and axis at the intersegmental lines ; (6) prolifera- tion and migration of the internodal nuclei ; (c) secondary fragmentation and absorption of the myeline (and con- tained debris of the axis), most active in the neighborhood of the nuclei; (d) increase of protoplasm round the nu- clei, forming finally a continuous sheath band of proto- plasm lying in the old sheath ; (e) formation of a new sheath on the periphery of this band, thus making an " embryonic fibre ; " (/') union of the embryonic fibres of the peripheral end with those similarly formed in the central end, the union taking place in the intervening cicatricial tissue ; (#) formation of myeline in the periph- eral end as isolated drops, usually seen first near the nuclei. These afterward unite to form a continuous tube. The formation of the myeline proceeds centrifu- gally, starting from the wound ; (h) the outgrowth of new axes from the old axes of the intact fibres of the cen- tral end, the outgrowth following quickly upon the de- velopment of the myeline : (i) in the central end, and espe- cially when connection with the periphery is not made, several new fibres may form within the sheath of an old fibre to take the place of the portion degenerated. Each of these may develop myeline and receive a branch from the axis cylinder above. Edward T. Reichert. NERVOUS SYSTEM, COMPARATIVE ANATOMY OF THE. Recent Progress.-The field is so large and the accumulated literature of the last few years so enormous, that it has seemed best to select typical or rep- resentative episodes, and to present data from various sources without attempting to edit them compactly or to assimilate them fully into a complete and orderly whole. This procedure is in harmony with the existing state of the science, which hurries from one discovery to another without intermission, and it will only be profitable to make a complete summary after the possibilities of the modern technique have been measurably exhausted. While it is not claimed that the selection has been as discriminating as could be desired, and many valuable additions to our knowledge are unwillingly passed over in silence, we trust that sufficient material has been col- lated to indicate the tendencies of modern research. The classes of vertebrates are taken up in succession and afterward a few special topics are discussed. Amphioxus.-Hatschek 1 has added valuable points to our knowledge of this simplest vertebrate. The results seem to warrant the hope that the perplexing problems of cerebrogenesis may yet be solved by comparative methods. The spinal cord of Amphioxus contains.a circular canal which extends dorsad in a delicate cleft near- ly to the dorsal surface of the cord. The canalis centralis is sur- rounded by gray mat- ter, which extends to the dorsal surface, but on all other aspects is clothed with white fibres. In the young the brain consists of a cephalic enlargement of the medul- lary tube, which subsequently is obscured. In a later stage, three vesicles are indicated corresponding to the primary embryonic vesicles. The first of these sections (primary prosencephalic vesicle) contains a distinct ventricle. From the cephalic Fig. 431.-Longitudinal Section through the Brain of Amphioxus when young. /, II, III. vesicles ; N, Sensory pit, which is homologous with the pitui- tary ; ch, chorda. 669 Nervous System. Nervous System. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) extremity of this cavity, the infundibulum is formed. It is an expansion of the brain-wall which comes into direct communication with the ciliated pit of the dor- sal surface of the head. The communication is subse- quently closed. The cavity of the sec- ond vesicle is a mere tube, which has been compared (with doubtful propri- ety) with the aqueduct. The third ves- icle has a dorsally located fossa rhom- boidea with membranous dorsal roof. The brain in the young is in the region of the first and second seg- ments. The ciliated frontal pit is connected by an olfactory nerve with the front of the brain. The pit is homologous with the hypophysis and nasal sac of craniates. A comparison with Ammocoetes and higher vertebrates shows that, in the latter, the in- fundibulum (and with it the whole brain axis) has been flexed ventrad. The spinal nerves have the usual divisions. The dorsal root does not communicate with the ventral, but passes toward the periphery, where it divides into a dorsal and ventral ramus. The ganglion is repre- sented by numerous cells scattered in the nerve near its point of division, and thus near their origin. This is very suggestive as to the origin of the spinal gang- lion. The dorsal ramus gives off a cu- taneous dorsalis and lateralis dor- salis nerve, and the ramus ventralis similarly divides into a cutaneous ventralis and lateralis ventralis. In addition to these, the ventral ramus affords a special visceral branch. There is a tendency to the forma- tion of plexi, and it is thought that many of the fibres may be sensory. It has been compared with the vagus, but a similar branch is found in the dorsal regions. The ven- tral root is the special nerve to the trunk muscles, and is purely mo- tor. The sensory (dorsal) branch is intersegmental, the ventral segmental. The first pair of nerves lies along the dorsal side of the cord (and the rostral muscles of the larva), and supplies the epithelium of the cephalic end of the rostrum. Some of the branches are supplied with Quatrefages' ganglion cells. The second nerve consists of an anterior portion, dis- tinct nearly to the root, which gives off a strong lateralis dorsalis and ventralis ; these supply the remainder of the rostrum. The second portion divides into two cutanei dorsales, a cutaneous ventralis and a cutaneous visceralis, which latter innervates the buccal muscles. The third to fifth nerves have the normal form (as above). All the viscerales unite in a plexus to which the fourth and fifth supply especially strong contingents. The separate descending branches pass to the muscles of the mouth and velum, while a strong branch, which fuses with a branch from the sixth anti seventh, passes to the plexus of the branchial apparatus. The fifth nerve gives off an especially large visceral branch which supplies a strong branch to the sensory organ of the right side (derived from the ectoderm of left side). It is regarded as probable that the first nerve is homo- logous with the ophthalmicus profundus, and the ventral nerve of the rostrum with the maxillaris. Ammomtes.-The additions to our knowledge in the Cyclostomata have related chiefly to the homologies of the nerves. Hatschek1 shows that there is a great similarity, in general, with the distribution prevailing in fishes and the embryological data discovered by Kupffer.3 The cranial nerves also show the same fun- damental parts as already reported in Amphioxus. The dorsal root produces (a) a ramus dorsalis, which di- vides into a cutaneous dorsalis and a lateralis dorsalis, and (b) a ramus ventralis, which represents a cutaneous and prae- trematicus, and also gives off strong rami viscerales and the cutaneous ventralis, which together form the ' ' post -1 r e m a - ticus." The visceral branches carry motor fibres to supply the muscles of the mouth and gills, as well as sensory fibres to the mucous membrane. There is a longitudinal set of connecting fibres uniting all nervi laterales dorsales, the continuation of which forms the recurrens lateralis of the vagus, extending the whole length of the animal. This longitudinal system is related with the sensory organs of the lateral line. This system embraces (dorsad and ventrad) the eye. The im- portant morphological deduction from the above fact is that the nervus lateralis vagi is phylogenetically formed of the nervi laterales of all the spinal nerves, the direct connection with which has been subsequently lost. Another longitudinal set of connecting fibres brings all the ganglia of the rami ventrales into communication (this arrangement is complete only in the young). The epibran- chial sensory organs (organs of the ventral lateral line) are supplied by nervi laterales ventrales which branch from each of the rami praetrematici. It appears from a compar- ison of these types that there is essential similarity be- tween the cranial and spinal nerves, but it is the latter and not the former which have been altered. The trigeminus is now generally recognized as com- bining two nerves. Hatschek distributes the cranial nerves and head organs as indicated in the table on page 671. In a subsequent paper6 Hatschek announces the dis- covery that the dorsal roots, in all higher vertebrates, connect with the ventral root next caudad, and their branches follow the myoseptum. Thus the ventral roots are segmental, and the dorsal intersegmental. The arches are intersegmental, and the clefts are segmental. This simplifies the above scheme without invalidating the facts. Edinger0 describes the olfactory nerves of Ammoccetes, in which he recognizes a commissure and a chiasm which are in direct connection with the interlobular (anterior) commissure. Unfortunately no one has yet studied the olfactory in the light of our present morphological knowledge, and the existence of a radix lateralis and hip- pocampal rudiment is still only conjectural. Selachii*-Edinger concludes, from a study of the em- bryology as well as from a comparison of the adult brain, that the fore- brain of sharks and rays differs from that of all other (higher) vertebrates i n that no true hemispheres are formed, but the primary proSen- cephalic vesicle persists, and the thickened walls contain the elements which in other groups constitute the hemispheres. The sharks are somewhat in advance of the rays and have slight indications of the subdivision. The same author gives a detailed description of the diencephalon. The latter is divided into a cephalic and a caudal portion into which the pedunculi cerebri enter from the prosencephalon. The habenulae of the two sides differ greatly in size and are connected by a commissura habenaria. The caudal or infundibular part of the dien- cephalon has two lateral lobes and a posterior (caudal) lobe, and bears a large hypophysis, saccus vasculosus, and Fig. 434.-Longitudinal Perpendicular Sec- tion of the Brain of Ammoccetes, for com- parison with the similar view of the brain of Amphioxus (Fig. 431). eh, chorda; olf, olfactory sac; inf. infundibulum. Fig. 432.-Cross Sec- tion in the Region of the Third Ves- icle. Fig. 433.-Cross Section of Body (diagram- matic). N, nerve tube ; eh, chorda ; if, muscu- lar segment ; G, dorsal branch, with ganglion cells passing through the muscles and divid- ing into a dorsal ramus (d) and ventral ramus (v), the latter again di- viding into a cutaneous and a visceral branch; v.b, motor root. Fig. 435.-Lateral View of the Brain of Adult Petromyzon. Epiph, epiphysis; hem, hemi- sphere ; opt. I, optic lobes. 670 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Nervous System. Nervous System. Seg- ment. Myotom. Ventral roots. Dorsal roots. Visceral arches. Epibranchial sense organs. ■ (a) " Medullary " region. Olfactory and nose (the first a " medullary " nerve related to a " neuroporus " sense organ). Optic and retina (the first an " intra-medullary " nerve related to a " medullary " sense epithelium). (b) Dorsal nerve roots situated cephalad of the first myotom. Probtic metamers. ■ Fore-head. I. II. L Myotom ab- Absent sent. Myotom re- Reduced duced. Musculus N. abducens .... lateralis. Trigeminus A*, situated cephalad of the first (reduced) myotom, later : Oculomotor, as derivative of the visceral branch of the above. (c) Normal metameric portion. Trigeminus B,+ situated caudad of first (re- duced) myotom, later: Trochlearis, as derivative of the visceral branch of the above. Facial, including auditory (as nerve of a dorso- lateral sense organ). Visceral cleft absent. Anterior organ of the ventral lateral- line (?). Mandibular visceral cleft (rudimentary). Mandibular arch. First epibranchial sense organ. Pseudobranchial border (= hyoid cleft). Hyoid arch (behind auditory capsule). Second epibranchial sense organ. £ • E r Primitive in. First meta- Ventral root of otic myo- glossopharyn- tom. geal. Glossopharyngeal First true visceral cleft. First visceral arch. Second epibranchial sense organ. £ O region. IV. Second me- Ventral root of taotic my- vagus, otom. Third meta- Ventral roots of Vagus and the dorsal ganglionic portion, includ- ing the first ventral (epibranchial) ganglionic mass with its peripheral nerves. Spinal-like vagus branch and the following Second true visceral cleft. Second visceral arch. Fourth epibranchial sense organ. Third to seventh true visceral clefts. 5 Hind gill V. to otic myo- the spinal-like spinal-like nerves. Visceral arches. * region. IX. tom, etc. (spinal artigen) nerves. Second to sixth ventral (epibranchial) ganglia of vagus. [Segmentation of back follows.] Epibranchial sense organs. * Trigeminus A includes : N. frontalis primus; portio profundus of ophthalmic ; N. mandibularis. t Trigeminus B includes: N. frontalis primus; portio superficialis of ophthalmic ; N. mandibularis. recessi laterales infundibuli (mammillaria.) In adults the hypophysis consists of coiled and branching pouches. The histological structure is much as in bony fishes. fibres pass to the deeper layers of the tectum opticum. The commissura transversa is identified with von Glid- den's commissure. A tract is described from the habeme to the roof of the mesencephalon, also a tract to the pros- encephalon comparable with the taenia thalami. The ventricular cinerea gives rise to decussating fibres. Most of the fibres of the diencephalon spring from the pars in- fundibularis, among them the fasciculus longitudinalis dorsalis. This bundle seems to receive a contingent from the region of the oculomotor and passes into the ventral columns of the cord. The prepedunculi of the cerebellum arise from the region where the ventral peduncles disap- pear. The Brain of Dipnoids.-The lung-fishes have long been recognized as of great morphological interest by rea- son of their primitive and intermediate position. The combination of embryonic characters in the skeleton and limbs with amphibian peculiarities of the circulatory and respiratory systems makes them very instructive in indi- cating the possible primitive condition of the vertebrate phylum. The neurology of the African lung-fish, Pro- topterus, has recently been carefully investigated by Dr. R. Burckhardt.* The relations of the brain of different groups of vertebrates may be expressed somewhat as in the following diagram, which, however, differs in sev- eral points from that given by Burckhardt: Fig. 436.-Longitudinal Section of Selachian Brain, according to Edinger. The brain is supposed to be transparent, and the various fibre systems are projected upon one plane. Nerve-fibres are said to arise in the infundibulum, but the writer has found only gelatinous fibres in the corre- sponding organ of fishes. The pedunculi divide into a dorsal and ventral tract, the latter terminates in the infundibular portion, the Primitive vertebrate. ( Lamprey. Sharks. Rays. Dipnoids. ■ Ganoids-Bony Fishes. Ichthyophis-Amphibia. Mammals. Reptiles Birds. The resemblances to lampreys (Petromyzon) is very great, in spite of certain reductions in the latter, due to retrograde metamorphosis. Ganoid' Fishes*-Professor Kupffer has studied the de- velopment and discusses the morphological results. He states that at a period of forty-five hours after fertiliza- tion the brain is not yet separated fully from the epider- mis. It is of great morphological importance to deter- mine at what point the attachment is effected. Only two vesicles are clearly distinguishable, the ce- phalic being the smaller. Growth is at first more rapid in the ventral part of the tube and this gives rise to a Fig. -137.-Diagrammatic Representation of a Section of the Brain of Scyllum. - former passes beyond the diencephalon. A tract which requires further study is the so-called " mantle tract," which is said to originate from the dorsal part of the pros- encephalon and decussate caudad of the chiasm and ven- trad of the commissura transversa. After decussation the * Das Centralnervensystem von Protopterus annectens. R. Fried- laender, Berlin, 1892. 671 Nervous System. Nervous System. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Fig. 438.-The Brain of Protopterus annectens. 1. Longitudinal median section. Con., conarium or dorsal sac: Z., pineal gland ; Z.p.," pineal pillow;" Mes., mesencephalon; Ep., epencephalon ; Pl. vent, iv., plexus of fourth ventricle; Vel., velum; Com. ant., precommissure ; Opt., optic nerve ; Hyp., hypophysis ; Met., metencephalon. 2. Ventral view of the same brain. Tr. ol., olfactory tract; Pros., prosencephalon ; Di., diencephalon ; L. inf., hypoaria : Met., metencephalon ; II. to XII., cranial nerves. 3. Lateral view of same object. Tub. ol., olfactory tuber ; Lob. hip., hippocampal lobe ; M. sp., medulla spinalis , S. e., saccus endolymphaticus. 4. Dorsal view of the same brain. "plica encephali tentralii" (pl. tent.). This is the floor of the mesencephalon and is the first indication of what in mammals is called the saddle-cleft. The roof, like the floor of the brain, consists of simple epithelium. The first indication of the pineal appears near the middle of the roof (ep^, Fig. 443), nearly mid- way between mesencephalon and prosencephalon. Just caudad of the plica is the pons flexure. The slight curvature of the floor in front of the plica is constant in all vertebrates and is called by Kupffer "tuberculum posterior" in spite of the previous use of nearly the same term for the obscure corpora quadrigemina posteriora of Sau- ropsida, etc. The cephalo-dorsal part of the brain tube isopen, and communicates by a tubular conduit with a space beneath the outer layer of the epidermis, while the brain- walls are continuous with the inner epider- mal layer (at r, Fig. 443). Just below (ven- trad of) this communication is the recessus opticus, on the caudal aspect of which the optic chiasm will develop, and on the ce- phalic aspect the anterior commissure. The hypophysis is at this stage of unexpected size and shape (hy), and it impinges on the front of the brain-tube. The organ is developed from the layer of cells where the entoderm and inner ectoderm layer meet in front of the head. It is in im- mediate connection with a thickened part of the inner ectoderm layer which is to Fig. 439. Fig. 440. Figs. 439 and 410.-Longitudinal Sections of the Brain of Protopterus. Cal., callosum ; Vh. b., prosencephalic bundle; C.a., precommissnre; L.t., lamina terminalis ; Inf., in- fundibulum ; Sac. vas., saccus vasculosus ; Hgp.. hypophysis ; Tr. o., optic tract; Dec. po., decussatio post-optica; Ba., cephalic peduncles of cerebellum; Hl.b., dorsal longi- tudinal bundle; Dec. M. F., decussation of Mauthner's fibres. ; N. vag., vagus nidnlus; Cb., cerebellum ; Mes., mesencephalon ; Post. C., postcommissure ; .V. b., Meynert's bun- dle; Sup. C., supracommissure; Tub. ol„ olfactory tuber; Fiss. pr., fissura post-olfac- toria ; Hr., cortex: Olf. b., olfactory fibres; Tr. gh.. tract from superior commissure to cerebrum ; Tr. d. and Tr. pro., tracts from superior commissure to diencephalon and cerebrum (tsenia). 672 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Nervous System. Nervous System. form the sucking disk (A/, Fig. 443), immediately above the mouth. When the age of fifty-seven hours is reached (Fig. 444), the brain has elongated, the connection of brain and epidermis is now a solid cord of cells. The epiphysis has become more distinct. From this time on the hypophysis begins to sepa- rate from the skin, with which it is for a long time connected by a stalk. The brain communication with the ectoderm is severed, and a slight protuberance at this point remains, which the author calls the tuber olfactorius impar. The region of the future infundibulum (Fig. 446) becomes greatly expanded and several sinuses are de- veloped. The inferior commissure system ap- pears earlier than the chiasm fibres. The tuber olfactorius impar, which Kupffer con- siders the morphological front of the head, and which was originally in juxtaposition with the hypoph- ysis, becomes more and more widely separated from it and ceases to grow, and even becomes reduced. At the end of larval life (Fig. 446) the paraphysis ep' is derived from the prosencephalon in front of the dorsal sac. The velum transversum (vt.), which immediately precedes, be- gins to assume a plexiform ap- pearance. The commissures are well developed. The star in Fig. 446 indicates what the author and Burckhardt regard as the caudal limit of the base of the mesen- cephalon. Two commissures of the infundibulum are called com. debelis(tZe) and com. terminalis (/), though it is hard to see what ex- cuse can exist for these new terms. The author identifies the com. debelis with Edinger's decussatio infundibuli. The dorsal sinus of the infundibulum becomes the hypoaria, and the ventral becomes the saccus vasculosus, though also producing two lateral vesicles which are probably the homo- logues of the similar sacs of Tele- osts which Herrick has homo- logized with the mammillaria. Kupffer concludes that his re- searches settle the question as to the morphological front of the brain. Baer, His, and the writer have contended that the region of the infundibulum is the front, while Reichert and Kblliker lo- cate it in the terma in front of the chiasm. Mihalkovics locates the theoretical front in the middle of the terma and denies the existence of a " hook - curvature " of the axis. Von Wijhe shows that the point of attachment of the brain with the skin is independent of the hypophysis. Kupffer completes this argument by discovering a median olfac- tory fundament. The Ganoids have a much greater development of the roof of the diencephalon than is characteristic of the Teleosts and Selachii. The greatly distended base of the diencephalon Kupffer designates as hypencephalon. The most caudal part of this segment gives rise to the hy- poaria, which the present writer, on embryological grounds, has been tempted to relegate to the base of the mesencephalon. Regarding the whole cavity cephalad of the mesen- cephalon as a single vesicle, Kupffer arranges the sec- ondary modifications of its walls as follows: 1. From the cephalic wall, the optic vesicles and stalks. 2. From the dorsal wall, the epencephalon (= cerebrum), the pa- raphysis or anterior epiphysis, the parencephalon (dien- cephalon), the epiphysis proper. 3. From the floor, the hypencephalon with the saccus dorsalis, hypoaria and saccus vasculosus. The author makes much of the fact that there is in Amphibia a large postpineal part of the roof which is ab- sent in the Ganoids. The adult brain has been recently examined by Go- Fig. 441.-Section through the Pre- commissure of Brain of Protop- terns. Con., conarinm ; A. hip., hippocampal lobe ; Cal., callosum ; Amh., cornu ammonia ; Rec. po., recessus preopticus; Prec., pre- commissure. Fig. 443.-Median Section of Embryo of Acipenser Sturio, Forty-five Hours after Fertilization. ronowitsch10 in Acipenser, and by Herrick11 in Scaphi- rhynchus and Lepidosteus. The following extracts from the paper of Goronowitsch will be useful: " Cerebrum.-The roof of the prosencephalon is mem- branous, and consists of a variously folded epithelial lamina. The roof of the olfactory lobes, however, con- sists of thick medullary walls. Between the roof of the prosencephalon and the epiphysis there is a broad mem- branous sac, the cavity of which is distally in wide con- nection with the cavity of the prosencephalon. The blind end of the sac is directed proximally (cephalad !). The sac, therefore, must be considered as a broad diver- ticle of the roof of the prosencephalon, springing from a point cephalad to the origin of the epiphysis. This may be called, for the sake of brevity, simply the dorsal sac. " At the anterior margin of the left ganglion habenula (the left is much the smaller) a lateral induplication of the membranous roof of the prosencephalon enters the ventricle. This fold is somewhat complicated. The epithelial layer of which it consists forms numerous folds and sacs, into which projections of the membranes and blood-vessels enter. The structure is, in other words, that of a plexus choroideus. "Careful study of continuous series of sections indi- cates that there is nowhere a discontinuity in the epithe- Fig. 442.-Longitudinal Horizontal Section through the Cerebral Hemispheres, etc., of Protopterus. L. po., lobus post-olfactorius; Pp., preplexus; C. str., striatum; II., habena; Z. st., stipe of pineal gland; Aq. £., aque- duct; Cgr.. axial gray matter; Cb., cerebel- lum. Fig. 444.-Similar Section of Embryo, Sixty-four Hours after Fertiliza- tion. lial layer. The cavity of the prosencephalon is there- fore completely closed. The dorsal lamina of the fold forms the ventral wall of the dorsal sac, and the ventral lamina forms the membranous wall of the prosenceph- alon. It thus appears that the opening of the dorsal sac is asymmetrical. Cephalad from this point the two chambers are separate. The ventral portion of the neural tube at this region consists of thick paired masses, the basal ganglia. The membranous roof bears a system of 673 Nervous System. Nervous System. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) folds which becomes more complicated. The middle portion projects into the ventricle and forms a sort of falx cerebri. The dorsal wall also circumscribes the dorsal sac laterad and encloses it in a plexiform struct- ure derived from the roof the prosencephalon. " Somewhat cephalad of the base of the olfactory lobes a groove appears upon the dorso-median aspect of the basal ganglia, which passes mesad and can be traced di- rectly into the cavity of the olfactory lobe. The median falx of the roof dips deeply into the ventricle of the prosencephalon. The falx extends to the epithelial lamina which connects the two olfactory lobes. Ceph- alad of this point the membranous roof of the prosen- cephalon is continued to form paired sacs dorsad of the olfactory lobes. " In this structure of the prosencephalon of A. ru- thenus I detect the paired nature of the prosencephalon, which consists in the strongly developed falx as well as the membranous sacs of its cephalad portion. ' ' At the cephalic level of the chiasm two prominences appear upon the dorsal portion of the encephalon wall which have the structure of the basal ganglia. This structure extends soon to embrace the entire lateral walls of the prosencephalon. These ganglia consist of a very compact, finely granular stroma, with peculiarly ar- ranged ganglion cells, and of a system of exceedingly fine, non-medullated fibres. Beneath the epithelium, in the dorsal region of the ganglia, is a layer of small cells whose fibres extend ventrad and radially. Such cells are not found in the ventral portions, but instead irreg- ularly scattered small cells. In the midst of the gan- glion are large cells with large round nuclei and pale body. The processes are also radially disposed to the ventricular surface, producing in cross-sections a very characteristic habitus. The transition in structure in passing into the olfactory lobes is gradual. " The cephalic ventrally arched end of the embryonic nerve-tube, which, according to Gotte, forms the primi- tive prosencephalon, is to be regarded as the most primi- tive phyletic condition of the prosencephalon which on- togony suggests. The primitive prosencephalon is ho- modynomous with a segment of the spinal cord. By the growth of the dorsal surface of the primitive prosen- cephalon arose the discrete central organ of smell, while the lobus infundibuli is the result of a protrusion from its base. The formation of the olfactory centre led to the development of the prechordal portion of the skull. The architecture of the cranium of the most primitive of the Gnathostomata, the Notidaidse, corresponds to that of the brain. The gradual development of the or- gan of smell gave rise to the rhinencephalon of recent Selachii. This still indifferent organ exhibits no special homologies with the diencephalon and prosencephalon of higher vertebrates. It is closely connected with the lobus infundibuli, which is reduced in higher verte- brates. " On one hand, the reduced form of rhinencephalon of Ganoids and Teleosts is derived from the rhinen- cephalon of Selachii, which, on the other hand, give rise to the structure of the prosencephalon in Dipnoii, Am- phibia, and Reptilia. It is among these forms that the first indications of the origin of the prosencephalon of higher vertebrates may be sought. The first step toward the higher organization consists in the reduction of the lobus infundibuli and a transformation of the tracts con- necting with the caudal parts of the nervous system. The development of the thalami and the reduction of the lobus infundibuli alters the development process of the neural tube in higher vertebrates from the earliest stages on. There appears a diencephalic and a second- ary fore-brain, the former having an entirely different significance from the posterior part of the prosenceph- alon of fishes, for it is the result of accelerated development of a certain dorsal portion of the neural tube which remains undeveloped in fishes. With the gradual development of the thalami and alteration of the rhin- encephalon of Selachii, there grad- ually arise the tegmentum cruris and the pes pedunculi of higher verte- brates. " The Thalamus.-The lateral walls of the lobus infundibuli form two round, lateral projections, the lobi in- feriores, containing a considerable cav- ity. The posterior part of the lobe extends into a membranous sac, the so-called saccus vasculosus. Ventrad, the lobe connects with the bilobed hypophysis. " The walls of the lobus infundi- buli consist of finely granular stroma, staining pink with carmine, resem- bling that of the peripheral portion of the cerebellum. In the peripheral portion this stroma is compact, and it requires high powers to make out a fine fibrous structure parallel to the surface. Two fibre systems are more obvious entad. The fibres of the first run parallel to the surface, those of Fig. 445.-Similar Section of Larva, Three Days Old. Description of Figures 445 and 446.-c, Cerebellum; ca, precommissura ; cc, commissura cere- belli; cd, chorda dorsalis ; ch, chiasm and commissura post-opticae ; cp, post-commissura ; cs, supra-commissura : de, commissura debilis; e, cerebum; en, entoderm: ep1, paraphysis; ep2. epiphysis ; h, hypencephalon = infundibular region ; hf, sucking disk, hy. hypophysis ; hz, heart; hi, cartilage ; lo, lobus olfactorius impar. ; JT, mesencephalon ; m, mouth ; N, metencephalon ; p„ praepineal roof of diencephalon (parencephalon); pd, plica dorsalis ; pv, plica ventralis ; r, median olfactory plate ; ro, recessus opticus ; si, sinus post-opticus ; t, commissura terminalis ; tp, tuberculum posterius ; v, prosencephalon ; vt, velum transversum of the fore-brain. Fig. 446.-Similar Section of Larva, Four Weeks Old. 674 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Nervous System. Nervous System. (SUPPLEMENT.) the second radial to the surface. The latter spring from a layer of tissue clothing the inner surface. This layer is composed of a few series of round cells, much resem- bling those of the granular layer of the cerebellum. They are, however, somewhat larger than the latter, and the dark protoplasm mass surrounding the round nucleus of these cells is more highly developed. It is possible to trace the processes of these cells into the fibres of the radial system. In the fibrous zone round cells are scattered, as well as rod-like cells of the neu- roglia. " In the ventral portion of the cleft-like canal connect- ing the lobus infundibuli with the mesencephalic ven- tricle a ganglionic body composed of large cells occupies either side. Out of these ganglia springs a tract of non- medullated fibres which, passing caudad, subdivides, part of the fibres, passing to the caudal part of the lobus in- fundibuli, and part to the dorsal portion of the sacculus vasculosus. Associated with this system is a rather large bundle of non-medullated fibres derived from a small cluster of nerve-cells lying dorsad to the above-mentioned ganglion and ventrad to Meynert's bundle, immediately beneath the epithelium. The ventral portion of the caudal wall of the lobus passes into the thin epithelial wall of the saccus vasculosus, a part of the fibrous layer entering it. The saccus itself is a broad, very vascular, folded sac, clothed within by a peculiarly modified epi- thelium. "'The discoidal hypophysis consists of two completely distinct parts. The caudal portion is composed of three or four lobes, into each of which passes a thick bundle of non-medullated fibres, which passes to the ventral por- tion and subdivide in the several sacculi. The sacculi of the cephalic portion are covered, like the former, with multilamellate epithelium with fusiform cells, but no nerve-fibres are present. The interstitial substance is con- nective tissue only. A thin layer of epithelium connects the two portions. " The Ganglion Habenulae.-Cephalad of the ganglion interpedunculare and ventrad of the transverse fibres of the commissura ansulatse, there are two longitudinal bundles, which could be followed caudad only to the in- terpeduncular ganglia. These are Meynert's bundles, the right being much stronger than the left. The bundles pass cephalad and mesad of the fibres of the oculo-motor, and gradually pass dorsad, and at the point of communi- cation of the ventricle of the lobus infundibuli with the mesencephalic ventricle they lie adjacent to the epithe- lium. These bundles terminate cephalad of the anterior commissure in the ganglion habenulae." Herrick, in speaking of Lepidosteus and Scaphi- rhynchus adds: "The lateral ventricles are not absent, nor are they merged in the olfactory ventricles, as stated by others. A section taken at a point in front of the fora- men of Monro in the sturgeon brain shows that a cavity clothed by tela choridea (or pallium) extends cephalad along the dorso-mesal surface of each olfactory lobe. This cavity is of great morphological importance; part of its walls are modified to form a plexus, and it comes into direct communication with the aula. The surface of the lobe bordering is, like other ventricular surfaces, covered with epithelium. The cellular structure is also unlike that of the remainder of the lobe. It seems un- questionable that this space is homologous with the cavity of the lateral ventricle, which is not roofed over with nervous matter, but has merely the tela or pallium. These two ventricles become confluent cephalad to the Fig. 447. Fig. 448. Fig. 449. Fig. 450. Fig. 451. Fig. 452. Fig. 453. Fig. 454. Figs. 447-454.-Transections through the Brain of the Gar-Pike (Lepidosteus). Fig. 447.-Olfactory lobe, v.l., cephalad projection of the lateral ventricle, roofed over by the velum. Fig. 448.-Transection at the callosum, c.c. v.l., lateral ventricle; tn., membranous roof of the ventricle corre- sponding to the mantle ; a. I., axial lobe of the cerebrum : f. M., foramen of Monro ; gl.. remnant of the glomerular layer of the olfactory ; nl, olfactory nidulus beneath the aqueduct of the olfactory. Fig. 449.-Transection back of the chiasm. A mesad protuberance of the axial lobe corresponding to a part of the striatum is separated by projections of the ventricle. The aula is partly confluent with the ventricles, v.l., spur of the posterior cornu passing cephalad. In the connecting portion uniting the thalamus and hemispheres some evidence of the taenia thalami was detected. Fig. 450.- Transection at the level of the habenae. The lateral ventricles have completely circumscribed the axial lobe, c.g.e., corpus geniculatum externum; n, lateral nidulus of the thalamus; Hy.. hypophysis; n.M., nidulus Meynerti ; f.M., foramen of Monro. Fig. 451.-Transection through the pos- terior commissure. A portion of the epiphysis is seen above, ep. S.c., commissura Sylvii; Pc., post-commissura ; M.b., Meynert's bundle ; Ha., Hypo- ariutn. Fig. 452.-Transection at the middle of the optic lobes. Ill, third nerve in a groove between the hypoaria and lateral lobe of the thalamus. The tori project medianly into the ventricle. Fig. 453.-Transection through the posterior part of the optic lobes. IP, fourth nerve ; vol., volvulus, or portion of the cerebellum thrust into the optic ventricle. Fig. 454.-Transection through the medulla and cerebellum at the opening of the reces- sus lateralis. 675 Nervous System, Nervous System. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. openings of the olfactory lobes, but a partial division, by a depending loop corresponding to the dorso-mesal walls of the mantle, may be traced back of that point. From the ventral extension of these median walls two arms, forming with them an irregular inverted Y, pass laterad nearly to the ectal thickened walls of the hemisphere, shutting off a median aula from the lateral ventricles, with which the former is connected by a large portie. It is from the ventricles thus bounded, and not from the median chamber, that the olfactory aqueduct springs. " The development of nervous matter in the cerebrum is greater relatively in the gars, therefore the membranous portion of the mantle is greater in Scaphirhynchus. In Lepidosteus the ventricle gives off two spurs in the median portion delimiting a body somewhat resembling the cor- pus lenticulare of the striatum. The posterior cornu sweeps back of the crura and then circumscribes the ven- tral and ectal portions of the cerebrum, finally meeting the dorsal extension of the ventricle, enclosing a large occipito-basal lobe much as in reptilia. The extent of the ventricle may be most easily recognized by the epi- thelial covering of the axial lobe where it is present. . " The cerebrum is more highly developed in Lepidos- teus. Cephalad, it projects beyond the olfactory, and ap- (SUPPLEMENT.) " The epiphysis springs from the most caudal portion of the recessus pinealis, which is clothed, as usual, with very large and dense epithelium, very different from that of the adjacent parts of the third ventricle. There seems to be a perforation passing obliquely dorso-caudad, forming the communication between the cavity of the epiphysis and the recessus. The epiphysis itself is tubular, and arches rapidly caudad to a point over the tectum, then curving more rapidly cephalad, between the hemispheres, is slung, as it were, in the membrane connecting them. The structure is like that of reptiles, varying much in different localities by the greater or less development of certain elements. In characteristic portions there is, first, the wall of connective tissue ; seated upon this are slender cells, fibrous in character, which support small granular nuclei in several series, and centrally a larger nucleus beyond which the cell extends as a long narrow flagellum projecting into the cavity. The appearance is as though the single stalk supports nuclei of both sorts, though this may be an illusion. Nerve-fibres may be followed in the spaces between the cell-bases, extending in the direction of the axis of the organ, and passing into the larger nuclei. There can be no noubt of the nervous character of the organ. " A blood-sinus closely invests the epiphysis, outside of which is a second investment from the dorsal sac which projects caudad to ensheath it. The walls of the dorsal sac consist of a single-layered epithelium with long cilia or flagella projecting into the lumen. Numerous plexi- form diverticles also project into the cavity. The fibres from the epiphysis were traced, with apparent certainty, to the supra-commissura. " Cephalad of the habenulae, as well as immediately above them, the dorsal sac communicates with the third ventricle, the lateral ventricles being entirely distinct. Slightly farther cephalad the dorsal sac is shut off from a median portion which must be considered as homolo- gous with the aula. Into this median portion the cavities, of the lateral ventricles open, as usual, the only differ- ence being that the aula is more elongated than usual, and the portae are correspondingly enlarged. It has suf- ficiently appeared from the above that the dorsal sac is not a portion of the cavity of the prosencephalon, but of the diencephalon. It is not a new structure, but one found in reptilia as well, and pertains to the epiphysis." In this connection was identified, apparently for the first time in fishes, a homologue of the hippocampus. " The habena is imperfectly divided into two parts, a ventro-median portion, with smaller cells, giving rise to Meynert's bundle, and a cephalo-dorsal and ectal portion, of larger cells, giving rise to the taenia. The right ha- bena is somewhat larger and is apparently chiefly asso- ciated with the fibres of the epiphysis." The hypoaria, or caudo-lateral lobes of the cinereum, are less highly developed in Lepidosteus than in the sturgeon. They arise caudad of the chiasm as tuberosi- ties of the lateral wall of the infundibulum dorsad of the ventral nidulus of large cells above mentioned. A di- verticle of the infundibulum enters them, and this cav- ity expands to a spheroidal cavity. The cell structure is similar to that of the tuber. In Lepidosteus they extend much farther caudad, so as to reach the exit of the third nerve. A rather strong tract enters the caudo-mesad portion where it is becoming separated from the thala- mus and passes toward the tract of the third nerve, pass- ing Meynert's bundle, and apparently unites with fibres- passing toward the cerebrum. If these fibres be compared with the fornix tract, they might seem to warrant the sug- gested homology of the diverticles of the third ventricle between the hypoaria with the mammillaria. This seems the more reasonable, inasmuch as there seems to be a homologue of the corpus geniculatum dorsad of them. The lobi optici are very large and resemble those of reptiles in nearly every respect. Very large ventricles occupy their centres, and where these are confluent (Fig. 25) there is a curious pendant body on either side of the median line due to a lateral diversion of the median walls of the tecta, below their union with each other. This body, originally called fornix by Carus, may perhaps Fig. 455. Fig. 456. Figs. 455 and 456.-Dorsal and Ventral Views of the Entire Brain of the Gar. The bi-lobed mass lying behind the cerebellum is not of a ner- vous character. pears in transection as two independent bodies dorsad to the olfactory lobes. Fig. 447 illustrates a section through the olfactory and extreme cephalic part of the lateral ven- tricle, which is bounded only by the pallium. The rela- tions are essentially the same in all Ganoids. Fig. 448, which passes through the callosum, shows the relation between the olfactory aqueducts and lateral ventricle. The real homologues of the foramina of Monro are con- siderable slits. In the sturgeon the relations are similar, but the partial eversion of the hemispheres laterally brings the openings of the aqueduct of the olfactory lobes farther laterad. " Respecting the dorsal sac, Lepidosteus affords much clearer information than the sturgeon, and renders neces- sary a considerable change in the interpretation of this structure offered by Goronowitsch. Morphologically it is a dorsal pouch of the diatela, such as may be detected in all reptiles in which the epiphysis is strongly devel- oped. The asymmetry upon which Goronow'itch lays so much stress is slight, and more apparent than real. The fact that it extends so far cephalad between the hemi- spheres is an incident to the cephalad projection of the epiphysis. It may be useful to first study the structure of the latter. 676 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Nervous System. Nervous System. retain the name suggested by Fritsch, torus longitudina- Us, since it is free from the false homology involved in the other. The structure of this body is very simple, consisting of dense clusters of small cells like Deiter's corpuscles. From the base of each optic ventricle there is a projec- tion which has been called torus semicircularis. These lobes must be regarded as an inherent part of the mesen- cephalon, being provided with a slightly modified ventral accumulation of the cell-layer constituting the fourth of the above-mentioned layers of the tectum. The struct- ures are those already familiar in reptiles, and called (rather unfortunately) by Rabl-Riickhard the colliculi. The roof of the aqueduct is thickened and thrust far forward under the optic lobes, or better, the optic lobes are thrust so far caudad that they over-arch the valve of Vieussens or valvula cerebelli. The presence in this body of the decussation of the fourth nerve is sufficient proof of the correctness of the homology. In Lepidosteus the adhesion of the valve dorsally upon a forward tongue of cerebellum ventrad is considerable, but in Acipenser the ventral (cerebellar) portion is pushed forward and rolls cephalo-dorsad, fairly filling the cavity. The structure of this body, which may be called volvula cerebelli or volvula, is identical with that of the cerebellum proper. The Cerebellum.-In the development of the cerebellum we have the most characteristic feature in the brain of the ganoid fishes and, at the same time, the peculiar modifi- cations of the theme express the generic variations most distinctly. In the gars, where the whole brain is quite reptilian, the cerebellum is highly developed superficially, while in the sturgeon only a relatively small part is ex- posed, the remainder being packed in the cavity of the mesencephalon and the laterally enlarged fourth ventri- cle. In Lepidosteus the cerebellum may be divided into the following parts: first, a cephalic invasion of the mesencephalic cavity, more or less closely associated with the valve, constituting the wlvula as above de- scribed ; second, the median lobe or vermiform lobe, third, two lateral lobes ; fourth, a posterior pouch or bursa. In Scaphirhynchus the volvula is enormously devel- oped and thrust far forward, completely obscuring the valve. Appearing first as a pentagonal projection from the inner (dorsal) surface of the (inverted) valve, it goes on increasing cephalad, till, rolling ventrad, it folds upon itself, turns caudad, carrying its median protuberance upon its (now ventral) surface, and passing somewhat dorsad to connect with the vermiform lobe. The central portion consists of white matter filled with enormous and beautiful branching Purkinje's cells, the lateral por- tions containing the Deiter's corpuscles. There is no bursa nor distinct cephalad diverticle, as in Lepidosteus, but the vermiform lobe remains a solid mass with its white matter mesad and dorsad and its granular layer laterad and ventrad to the end. The Bony Fishes (Teleostei).-The discovery of Rabl- Riickhard12 that the cortex cerebri is functionally absent and simply morphologically represented by a membra- nous pallium of fishes has opened the way for new stud- ies in this neglected group. Great progress has been made in identifying homologies between the fish brain and that of higher vertebrates. The olfactory region is best studied in fishes because of the variability of the tuber and clues afforded by the manner in which the identical morphological relations are expressed under the varying conditions. Here, as in all other groups so far investigated, there are two distinct roots of the tuber. The radix lateralis is derived from the pero or external part of the tuber (that part composed of the glomerules and specific olfactory cells). This root passes along the ventro-lateral aspects of the cerebrum, at the line of union of the pallium with the axial lobe, and enters a special cluster of cells which has been homologized with a part of the hippocampus (" hippocampal nidulus "). The radix mesalis passes from the pes olfactorii and, even in the numerous cases where the tuber is removed by a long interval from the cerebrum, is always distinct (SUPPLEMENT.) from the preceding. It passes through the praecommis- sura. It has been shown that there are somewhat con- stant fissures upon the surface of the axial lobe and that the lobe is topographically subdivisible into subordinate lobes which differ in histological structure and fibrous connections. Thus the cephalic portion gives rise to the ventral peduncles which end in the hypoaria, while the dorsal part originates the dorsal peduncular bundles which pass to the midthalamus and there come into rela- tions with the sensory niduli. The commissures of the cerebrum are difficult of interpretation. The great cen- tral bundle which connects the two axial lobes consists of three distinct portions, as described by Edinger and Bellonci; first, the praecommissura ; second, decussation of olfactory radices ; third, axial commissure (commis- sure of basal cerebral fasciculus, Edinger). In some cases feeble indications of a callosum have been recog- nized, as well as fibres from the " hippocampal nidulus," forming a M fornix" (Herrick).14 The diencephalon is much modified in fishes and has received exceedingly divergent interpretations. The dorsal wall is frequently greatly reduced by the cephalic growth of the tectum op- ticum while its ventral aspect is increased by numerous expansions of a nervous or non-nervous nature. The non-nervous portions are essentially parts of the same system. The hypophysis and saccus vasculosus are both parts of a system of expansions of the ventral walls which are so thinned that only the thin, fibrous walls of the spongioblasts remain. These fibres have been described as nervous, but are undoubtedly remnants of the epithe- lium cells dragged out of the original position by disten- tion of the walls. The saccus receives numerous vessels and is essentially a sort of plexus, while the axial part of the hypophysis is almost precisely similar and is in more or less direct communication with the former. The hypophysis consists, in addition, of a mass of tubular vessels derived from the pharynx as in other groups. There are possibly nerve-fibres in the axial por- tion of the hypophysis, but most of the fibres which pass dorsad from it may be spongioblastic (gelatinous.) The epithelium of the saccus is ciliated. Caudad of the sac- cus are two small pouches which have been homologized by Herrick with the mammillaria. The great expansions back of the tuber cinereum known as the hypoaria or lobi inferiores are regarded by most authors as expan- sions of the base of the thalamus, but recently the view has been advanced that they represent (in part at least) the base of the mesencephalon which in other vertebrates is largely lost in the " saddle cleft." In the base of the diencephalon of fishes the several decussations and commissures are unusually distinct. The commissura ventralis is the most ventral member of the system. The fibres arise in the tuber cinereum and form a true commissure. The commissura transversa is closely associated with the chiasm. Its fibres seem to spring from cells near the entrance of the cephalic branch of the optic tract into the tectum and may be associated with the anterior brachium opticum. A small but dis- tinct bundle with similar course forms the commissura minor. The commissura horizontalis, after forming a sharp loop across the median line, passes by a reverse curve through the nidulus ruber to the nidulus "corticalis" near the habena. Meynert's bundle pursues the same course in fishes as in higher animals and serves as a valuable landmark. A possible taenia thalami connecting the diencephalon and prosencephalon was noted. The dorsal surface of the thalamus gives rise (over the aula) to a remarkable pouch or dorsal sac which may extend far cephalad and is intimately associated with the epiphysis. It seems probable that the same structure exists in all vertebrates and forms the plexiform body, sometimes called paraphysis and in some cases mistaken for the epiphysis itself. The habena is frequently well-developed and contains numerous small cells. It sends numerous spongioblast fibres into the tectum. The most remarkable external structure on the lateral surface of the diencephalon is 677 Nervous System. Nervous System. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. thegeniculatum, which in its internal structure is peculiar. The ectal surface has numerous large cells like the pe- ripheral cells of the hypoaria. These give rise to two fork-like processes which form a switch-station for the tracts. The interior is composed of similar cells in a great mesh-work of fibres. The ventral commissure enters it and thus suggests a connection with the brachia optica, while a contingent of fibres passes to the dorsal pe- duncle. Although the optic nerves pass over the walls of the thalamus there is no connection directly with the cells of that region. The tracts divide at once into a cephalic and a caudal portion which pass severally to the cephalic and caudo-lateral portions of the tectum. The gray matter of the diencephalon will be further treated in connection with the mesencephalon. The roof of the mesencephalon is composed of a greatly distended tectum opticum, while much of the central cinerea is crowded into the interior of the ventricle in the form of the torus. The latter is derived from the me- dian part of the tectum and contains granules and cells. Its spongioblasts are connected with the tectum and are obviously simply the elongated walls of the displaced epithelium cells whose ventral ends have been crowded into the ventricular space. These slender remnants of the cell-walls (" gelatinous tracts ") are among the most important indices of the structural relations of the modified brain-walls. The tectum opticum is so com- plicated and difficult that no apology is necessary for giving in full the suggestions derived from a study of this organ in fishes. The fibre-tracts are : 1. The optic fibres, entering from the cephalo-mesal and caudo-lateral aspects respectively. These tracts are part of the same continuous sweep of fibres from the optic nerve, which have been separated by the architectural necessities of the brain; their internal course is morphologically identical. 2. The fibres of the cephalic and caudal brachia which, after effect- ing cellular connections at their exit from the tectum (?), connect with a double commissural sys- tem (transverse and ventral commissures) as above described. 3. The radiation to the lemniscus de- rived from the ventral ganglionic series of the tectum and passing to the lateral aspects of the medulla. 4. Associated with the latter the fibres of the middle peduncles of the cerebellum (decus- satio tegmenti) and probably also fibres to the third, fourth, and perhaps the sixth nerve niduli. There may also be among them commissural fibres. 5. The Sylvian commissure system whose fibres pass in a more or less complicated course from one side to the other, originating in the ectal reticulum of either side. 6. A system of fibres belonging to the category of gelatinous tracts, i.e., connective fibres springing from the epithelium of the ventricular portion of the torus and passing to the ectal surface of the tectum. The connective framework of the tectum is constructed on the same plan'as that of the rest of the brain, and con- sists of a continuous epithelium with the base of each cell upon the ventricle and its summit at the periphery. The integrity of the series is greatly disturbed by the de- velopment of neuroblasts and their migration and the in- vasion of fibre-tracts, as w'ell as by the great changes in position suffered as a consequence of the development of the cerebellum and volvula. The primitive simplicity is retained more perfectly in Amphibia (Menopoma, etc.). To all appearances, the nucleus of the epithelium cell divides without causing division of the cell, yet this is not certain. After passing the inner ganglion layer the walls collapse and form a thread which may enclose one or more nuclei and terminate at the periphery in a cell. These are conspicious in the young, but practically shrivel up with age. Between these cylindrical connective cells the neuroglia stroma, nerve-cells and fibres develop. The cells develop from the neuroblasts of the ventricular region and accumulate between the connective cells up to the level of the first fibre belt, forming a basal cellu- (SUPPLEMENT.) lar zone. The upper portion becomes functional and some cells migrate toward the periphery. By the grad- ual thickening of the tectum the ganglionic layer is sep- arated from the ventricular surface by an interval. It seems probable that only the outer portion of the dense zone of nerve-cells is functional, and it is only with these that a fibrous connection has been observed. The first layer of the tectum, beginning from the ventricle, there- fore, consists of columnar epithelium cells whose proto- plasm in the adult is more or less shrunken and whose nucleus may still remain distinct or may become im- bedded in a thin layer of protoplasm adjoining the walls. The walls may collapse beneath the ganglion layer and there is frequently an intricate folding which produces a peculiar appearance in section, but Fusari has completely misinterpreted this appearance in Plate III. of his work.* The appearance of a brush-like radiation of fine process- es is illusory and in perfectly prepared specimens, not too much dragged in cutting, the walls of the cylindrical epithelium cells can still be followed. Above this level the whole tectum becomes charged with a dense mass of gelatinous matter, giving it a homogeneous appearance. The (generally collapsed) walls of the connective cells pass directly toward the periphery and in some cases en- close nuclei with surrounding protoplasm. Whether these nuclei have simply retreated from the ventricular surface, or whether a single epithelium cell may have more than one nucleus is uncertain, but at the peripheral terminus there is always a small fusiform cell-like body. Fig. 457.-Diagrammatic Longitudinal Section of Fish-brain illustrating the Course of the Most Important Tract and Commissure. (From Anatom incher Ameiger, vli., 13-14.) These were apparently figured by Fusari as terminal expansions of ganglion-cell fibres in the plate above re- ferred to. It is only in well-preserved material that the distinction between the nuclei of the ventricular epithelium and the internal ganglion layer is obvious. A comparison with Amphibia shows that the same arrangement prevails there also. Each ganglion cell has its peripheral process, which passes into the ectal layer of the tectum and there divides dichotomously, mingling with the optic fibres to form a fine reticulum. This zone is perforated at inter- vals by the lemniscus and decussating cerebellar tracts, whose fibres collect ectad. In many cases actual com- munication between fibre and cell could be seen. But there is also a partial commingling of fibres of the next layer at some levels. The fifth layer is a dense band filled with a homoge- neous gelatinous substance, through which pass the fibres from the apical processes of the ental ganglion layer. It also contains sporadic cells of that layer as well as pos- * Atti de Lincei Mem. cl. sc. fis. ecc. Ser. 4, Vol. IV. Intorna alia fina anatomia dell' Encefalo dei Teleostei. 678 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Nervous System. Nervous System. sibly those forming the termini of the anterior bran- chium fibres ; the sixth and seventh layers cannot be topographically distinguished with precision ; the sixth is chiefly composed of transverse (sylvian commissure) fibres, while the seventh is the layer of optic fibres passing more or less obliquely caudad. Within these two layers is contained the ectal layer of ganglion cells of large size and with elongate processes. The apex process terminates in a strong fibre which divides dichotomously and gives off its ultimate branches to the reticulum. Careful study with high powers showed that these fibrils actually unite with or come into contact with the reticulum. The appearance of free termination, seen in Golgi preparations, seems to be unconvincing, espec- ially in view of the imperfect conservation implied by that procedure. The basal processes of these cells turn cephalad and seem to enter the optic tract. Amphibia.- The most, notable re- cent additions to our knowledge of the amphibian brain are due to the efforts of Osborn, Burckhardt,15 and Edinger.6 The Gymniophona (sub- terranean amphibia) have been in- structively compared with the sala- manders, etc. Those amphibia which, like Ichthyophis, are mero- blastic in development agree in the method of formation of the head with the Amniota in several aspects. We may conveniently refer to Dr. Burck- hardt's figures of Ichthyophis. Fig. 458 is a lateral view of the youngest embryo. The infundi- bulum (/) is the front of the brain, which is somewhat curved ventrad. Comparing with this figure a nearly cor- responding stage of the human embryo, as reconstructed from sections by Professor His, a marked similarity is obvious, Fig. 459. The greater elongation and differen- tiation of the hu- man embryo is ap- parent and the in- fundibulum is less obviously the front by reason of the protrusion of the future optic recess. Fig. 460 is a later stage of Ichthy- ophis, in which the origin of the hypo- physis is visible and the true nature of the cerebral vesi- cles as dorsal pro- jections is very well exhibited. The saddle - cleft sepa- rating the metencephalon from the rest of the brain is greatly developed and still unclosed. In Fig. 461 the subsequent combinations are shown, and Figs. 462 and 463 give illustrations of the adult brain. The special development of a "temporal lobe" which may be compared with the "hippocam- pal rudiment " discovered by Her- rick in fishes, is noticeable, though the connection of the praecommis- sure with the olfactory tubes described by Burckhardt must re- ceive a new interpretation. The embryology of Ichthyophis shows that the nasal epithelium, Jacobson's organs, and other sen- sory patches of the roof of the mouth have a common origin, and it is but a step farther to identify them with the pituitary fundament as parts of a frontal sensory plate of the primitive vertebrate. Edin- ger recognized the existence of an occipital lobe in amphibia and observed the corpus cal- losum as described by Osborn. Among the most stimulating papers of the last few years is Professor Osborn's18 on the callosum. Re- specting the Amphibia he says : " The cerebral commis- sures lie behind the foramina of Monro. They consist of an upper and a lower bundle. The former is much the larger. It passes upward and forward behind and above the foramen and gives the commissural supply to the dorso-medial portion of the hemi- spheres. It is the corpus callosum. The lower part is the anterior com- missure. Its main division is the pars olfactoria, which supplies a part of the brain stem, the ventro-lateral portion of the hemispheres, and probably the olfactory lobes. Its lesser division, supplying the lower posterior part of the hemispheres, is the pars temporalis. The. inner olfactory tracts arise near the anterior commissure, cross each other, and pass to the olfactory lobes." The upper bundle of the callosum was found to de- velop at an early stage in the frog. The fibres of the an- terior commissure appear somewhat later as a delicate thread beneath the callosum. A mechanical explana- tion of the fact that this order is the reverse of what oc • curs in mammals was suggested in what is called the primary and secondary positions of the callosum. In the primary position, Amphibia (and Fishes ?), this com- missure lies in the floor of the primary fore-brain, a part Fig. 461.-Embryo of a Still Later Stage. Fig. 458. - Youngest stage of Ichthy- ophis. I, infundi- bulum ; Abi, optic vesicle; Zh, dien- cephalon ; Afh, mes- encephalon ; Uh, metencephalon. riG. 459. - Figure of Hu- man Embryonic Brain. (From His.) A, optic ves- icle : II, prosencephalon; Z, diencephalon ; M, mes- encephalon : I, isthmus; Tr, infundibulum; Pm, maininillare : Br, Pons ; ZM, cerebellum ; Bf, roof of fourth ventricle ; Gb, auditory vesicle ; -V, medulla ; Nk, cervical flexure. Fig. 462. Fig. 463. Figs. 462 and 463.-Adult Brain of Ichthyophis. of the brain-wall which is early developed, hence its de- velopment is as rapid as that of the anterior commissure. In the secondary position, mammalia, the callosum lies in the middle portion of the terminal plate, which is a later growth than the floor of the ventriculus communis, hence its late development. The existence of a fornix commissure was regarded as doubtful in amphibia, though certainly present in reptiles. A considerable dispute has grown up as to the pro- priety of applying the term callosum to the fibre-strands connecting the dorso-median portion of the mantle. With the ditferentiation of a mantle from an axial por- tion of the cerebrum the dorsal system becomes more distinct and complicated, attention needs to be called to the fact that morphologically the precommissure, cal- losum, and hippocampal commissure are all parts of a Fig. 460.-An Older Em- bryo of Ichthyophis. Ep, epiphysis; Ast, optic peduncle; Sb, mesencephalic flexure ; B b, pons flexure. 679 Nervous System. Nervous System. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) single system connecting homologous parts of segment^ of the dorsal part of the neuraxis. One may increase at the expense of another, or nearly supersede it, as is the case in the marsupials. In 1888 Professor Osborn 16 devoted an extended paper to the amphibian brain. Some of bis results are the follow- ing : There is a direct motor tract to the prosencephalon and dien- cephalon. A portion of the de- scending trigeminal tract passes through the cerebellum. The posterior (dorsal) longitudinal fas- ciculus sustains relations to the eighth, sixth, fourth, and third tracts. The nidulus of the oculo- motor is connected with the post- commissure. A new sensory tract and nidulus common to the ninth, tenth, and seventh pairs of nerves was noticed. The size of the roof of the mesencephalon is in proportion to the functional per- fection of the eyes. The cerebel- lum was regarded as interseg- mental, and secondarily acquires a functional importance equiva- lent to that of other segments. The early constriction of the brain roof, which gives rise to the four vesicles, is for the accommodation of three nerve-fibre tracts decussat- ing dorsally, viz., the supra- and post-commissures and the cere- bellum, which in their primitive condition have a serial homology. In Proteus and Menobranchus the primitive epiblastic stalk of the optic vesicles is persistent. The nerves of the third, fourth, and sixth pairs form a special system with no apparent homology or connection with the motor elements of the vagus or trigeminal sys- tems. The attempt to employ the cerebral commissures as landmarks of the chief morphological segments of the brain (Osborn ") has not been generally accepted, but has served to call out much useful discussion. Kupf- fer 18 attempts to show that the Amphibia have segments of the dorsal roof which are not developed in other classes, at least not to the same extent. In Amphibia, Edinger identified the basal prosencephalic tract (ventral peduncle) which arises in the lateral and basal parts of the prosencephalon and passes to the dienceph- alon dorsad of the infundibulum, evidently forming anastomoses with cerebellar and other tracts. He also describes a homologue of the taenia thahuni and an olfactory tract which, after crossing in the praecommissure, enters the diencephalon (?) and, doubtfully, a mantle bundle which decussates caudad of the chiasm. Two tracts (equivalent to Os- born's direct diencephalic tract) pass into the lateral aspects of the cord. The connec- tion of the diencephalon with the cerebellum through prepeduncles is described, and it is apparent that the relations are the same as describe 1 by Herrick for Fishes. The Brain of Ueptiles.-The authors who have contributed most extensively to our knowledge of the reptilian brain are Stieda, Rabi-Riickhard, Edinger, Herrick, and Meyer. The prosencephalon was carefully described by Edinger19 (1888), who discusses Lacerta agilis, Anguis fragilis, Emys lutaria, and Tropi- donotus natrix. He divides the axial portion into a cephalic portion containing scattered cells and a caudal spheroidal portion which is called nucleus sphaericus. The origin of the peduncle tracts is in the axial lobe, and they divide in the thalamus, one to enter the nidulus of the thalamus, while the ventral portion passes on into the medulla. The figures, however, leave open the pos- sibility that the ventral peduncle communicates in this case, as the writer has shown in Fishes, with the middle peduncle of the cerebellum. The dorsal cortex of the median wall of the hemi- sphere is considered homologous with the cortex of the cornu ammonis, and a portion of the median wall devoid of cortex is said to represent the fornix ridge. Edinger says explicitly that the cortex first appears in Reptilia, though we now know that it is represented in Dipnoi and Amphibia. A callosum and fornix bundle are recognized much as they were by the writer. Aside from the fornix region an occipital region and a dorsal region are distinguished, which latter is supposed to communicate with the olfac- tory. An intermediate cell layer is also mentioned. The writer20 published one year later a brief account of the alligator, in which many of the above points were independently observed. The mistake of Wiedersheim and Riickhard in supposing the olfactory bulb to be ab- sent is corrected by reference to the young brain, in which the tuber still adheres to the brain. Distinct callosum, fornix, and taenia thalami were ob- served, and also a bundle corresponding to that called by Edinger "Bundel der sagittalen Scheidewand." The several commissures are found to occupy the same rela- tive position as in other Vertebrates. The remarkable olfactory fossa, a depression found in all Reptiles and in the Opossum, is noticed for the first time. " Three distinct kinds of cells can be detected in the mantle, one characteristic of the superior and anterior regions, a second of the occipital, median, and posterior- lateral regions, and a third about the ventro-basal region or hippocampus. " The natural division of the cerebrum into an axillary and mantle portion is very convenient for the purpose of description of the nervous elements. Attention is again called to the reason for regarding these two regions more closely related than either is with the diencephalon. The corpus striatum, as such, does not exist in the alligator, but the major part of the cerebrum consists of what Rabl-Riickhard called axillary lobes (Stammlappen). The axillary lobes consist of a rather homogeneous mass of cells, and has a contour similar to that of the entire Fig. 464.-Median Longi- tudinal Section of Brain shown in Fig. 30. Cc, callosum; Com. a., pne- commissura; Com. sup., supracommissura; PZ. ■chor. sup., prasplexus; Gf/A^habena; Sp^epiph- ysis; Com. p., post- commissura; Cbl, cere- bellum ; Z, infundibu- lum ; Cho, chiasm ; Lt, terma ; Hy.. hypophysis ; Ssp, "saddle-cleft;" B, pons. FIG. 465.- A, B, C, Three Views of the Brain of a Young Alligator. hemispheres, but is covered by a mantle which embraces it on all sides except behind, and is separated from it on all sides except antero-inferiorly by the ventricle, which is exceedingly narrow. The axillary lobes are, there- fore, the immediate cellular envelopes of the direct ex- tension of the peduncles. The mantle portion is exceed- 680 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Nervous System. Nervous System. (SUPPLEMENT.) ingly thin, and presents little opportunity for variety in structure. There is, however, a marked diversity in the cellular elements entering it. " From analogy these varieties of cells may be assigned to motor, psycho-sensory, and special olfactory functions respectively. The axial lobes likewise have two sorts. " The pyramidal cells which were first above men- tioned stain deeply, have small nuclei, and have a long apex-process, generally directed obliquely toward the pe- riphery, and several basi-lateral processes. No central basal process such as described by Meynert was seen. These motor-cells can be traced into connection with the basal prosencephalic tract (continuations of the pe- duncles). Indeed, similar cells can be followed to the diencephalon. The second variety of cells is flask- shaped or balloon-shaped, and has a slight power of pre- cipitating stains; and is further characterized by the large, clear nucleus, or perinuclear space. Such cells are distinctive elements over the posterior and median parts of the cortex. Especially constant are they in the me- dian wall. " The great bulk of the axial lobes-that portion which protrudes into the ventricle-is filled with similar flask cells, but these are curiously clustered in groups of two or multiples of two. The evidence that these cells are undergoing rapid increase by fission in this young animal is very conclusive. All stages of the process may be ob- The above indicates that the writer identifies the homo- logue of the hippocampus differently from Edinger, and relies on the course of the olfactory fibres as a guide, as Burckhardt has since done. The existence of communicating tracts between the tectum opticum and the oculo-motor roots was noted. See Fig. 466. In 188121 the writer published several contributions to the neurology of Reptiles. The free caudo-ventral portion of the cortex is definitely homologized with the hippo- campus and two distinct portions are distinguished. The axial lobe is divided into two portions. The caudal one (n. sphsericus of Edinger) is coiled upon itself by the backward revolution of the hemisphere and is called the occipito-basal lobe, while the cephalic portion, receiving the pedunclar tracts and probably representing the stria- tum, is known as the central lobe. The cortex is aggregated in specialized regions, called the frontal, parietal, fronto-median, and intra-ventricular respectively. The pre-commissure consists of three parts, one of which passes to the pes of the olfactory, another to the lateral regions of the hemisphere, and the third to the oc- cipito-basal lobe. The callosum and taenia thalami are also described. The existence of two commissures in the region of the epiphysis is noted, one being the pre-commissure, the other the commissure of the habena. Attention is called to the fact that the projecting plexus (conarium of Eu- ropean authors) has been frequently mistaken for the epiphysis (Zirbel). Meyer23 devotes an extended paper to the reptilian brain, but finds it necessary to rename many of the or- gans. He describes the radix lateralis as extending from the olfactory pero to the occipito-basal lobe (his "nu- cleus sphericus"). Much difficulty in construing the olfactory region would be removed if the pes olfactorii were recognized as a part of the hemisphere. The sub- division of the mantle into a number of distinct cell- groups is recognized. The median wall is called septum pellucidum, but the author finds no commissural fibres connecting the pallium of the two sides. If it were present it could not represent the callosum, which, he claims, must arise in a late stage of develop- ment and form a secondary connection between the hemi- spheres. The writer has abundantly demonstrated the existence of a callosum in the sense employed by Osborn in other reptiles, and sees no reason why the period at which the fibres appear should influence the homology, especially as we know almost nothing of the period when they appear in Reptiles. Nothing is more probable than that a strongly developed mass of commissural fibres should create a place for themselves apparently outside the septum in which they originate. The Brain of Birds.-The most important contribution which has yet appeared in this department is that pre- pared by Mr. C. H. Turner,22 under the direction of the writer, in 1891. Compared with other Sauropsida the avian brain is quite large and is remarkably compact. The large pros- encephalon entirely covers the diencephalon, and may cover rhinencephalon and mesencephalon. Although the compactness of the brain, the highly developed cerebel- lum and ventrally and laterally revolved optic lobes give to the bird-brain a habitus peculiarly its own, yet it is, after all, but a modified reptilian organ. Mr. Turner shows that a careful use of brain measurements and pro- portions offers valuable aid in classification. The avian prosencephalon is large, but unconvoluted. The epencephalon is well developed and transversely convoluted. From the introduction of the class Aves until now there has been a gradual retrograde evolution of the avian rhinencephalon. In the lowest type of birds the rhinencephalon is double, and projects be- yond the cephalic extremity of the prosencephalon ; in the highest type it is single and does not project. In the lower types of bird-brains the optic lobes are only par- tially covered by the prosencephalon. During the evo- lution of the class Aves and the differentiation of the Fig. 466.-Cross-section of Optic Lobes of Alligator at Exit of Third Nerves, col., Colliculus; tec., tectum; g.c., large cells of mesence- phalic root of the fifth nerve ; n. III., nidulus of the oculo-motor; d.t., tract from tectum passing adjacent to the nidulus. served. It may be suggested that, if in the case of young animals this part of the brain is most actively multiply- ing cells, it is possible that the growth of the mantle (in which there is little material for rapid growth) may be in some way associated with this proliferation of cells, resulting in the increase of the mantle from its margins, as though the material were pushed up around the mar- gins of the ventricle by rapid growth within. " The connection of this portion of the axial lobes of the cerebrum seems to be with the superior or sensory longitudinal tracts of the peduncles. In addition to the tracts above mentioned, the taenia thalami, springing from the basal region and passing to the habenulae, form a sensory link between the thalamus and the cortex. It is noticeable that the cells associated with this tract, even in the thalamus, are of the flask variety." Four areas of the mantle were distinguished, and the variety of cells contained in each seemed to substan- tiate the theory that the pyramidal cells are motor and the flask cells sensory. "One cell-cluster, which occu- pies a relatively small area anteriorly, but increases cau- dad, occupies the lower median portion of the mantle. It consists of flask-like or sensory cells with fibres, which can be traced to the tract leading directly ventrad to the ventral median portion of the posterior part of the brain, i.e., the hippocampal region, and seems to embrace the continuation of the olfactory tract." 681 Nervous System. Nervous System. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) families in it the dorsal and lateral portions of the avian prosencephalon have grown caudad much more rapidly than the ventral and mesal portions. This has caused the caudal portion of each cerebral hemisphere to revolve toward the meson, and, at the same time, to cover the optic lobes. The avian brain has great toxonomic importance. So far, at least, as major groups are concerned, aclassifica- cells only. The striatum contains cells of both types. There is a proliferating area in the axial lobe where small cells are produced. There is an involution of cortex in the occipital region of which there is no external indica- tion. Birds are pre eminently seeing animals, and all parts that appertain to vision are developed to a great de- gree. The optic nerve is the largest of the cranial nerves, and the optic lobes are complexly differentiated bodies. Even the third, fourth, and sixth nerves are relatively larger than the corresponding nerves of the mammalian brain. Mammalia. Minute Anatomy of the Spinal Cord.- Professor Golgi, of Pavia, by means of the method which bears his name, made out the following points, upon which recent investigations have been founded : 1. All the nervous cells of the cord have but one ner- vous process. (That is,only one process which gives ori- gin directly to a nerve-fibre. Opinion differs greatly as to whether the other (protoplasmic) processes convey or receive nervous stimuli or act simply as nutrient roots.) 2. The protoplasmic (shorter, branching) processes do not give rise to nerves but are distributed to blood-vessels and glia-cells. 3. Nerve-cells differ greatly in size and form and method of branching of the protoplasmic processes, but these variations are not especially significant. 4. More essential characters are furnished by the be- havior of the nervous branch, in accordance with which we may distinguish two types of nerve-cells: (a) Such as have an axis-cylinder which soon subdivides and pro- duces a reticulum ; (6) such cells as send out an axis- cylinder which maintains its integrity in spite of pro- ducing a few lateral branches. Cells (a) are found in the dorsal cornua and substantia gelatinosa, cells (b) in the region of the motor-root (ventral cornua). 5. In the cinerea of the cord there is a diffuse reticulum of fibres which is continued into the medulla and forms a communication between all parts of the gray matter. In the cord this reticulum is formed of the fibres of the dorsal roots and nervous processes of the sensory cells, as well as of branches of fibres from the motor-cells, and similar cells of the dorsal cornu and from small branches from the fibres of the various tracts. 6. In the cord nerve-cells of very different value are promiscuously scattered. 7. The second type of cells (sensory), with divided axis- cylinders, is found in the cells of the substantia gelatinosa, a considerable number of the cells of the dorsal cornu proper, a few irregularly arranged cells of the marginal layer between the two cornua, and a few which are scat- tered in the ventral cornu. The motor type of cells is found represented by the majority of the cells of the ventral cornu, a few cells of the dorsal cornu, and cells of the intermediary zone, es- pecially those adjacent to the lateral bundles. The majority of the cells of the ventral cornu send their axis-cylinders into the ventral column or the ventral root, while a considerable number pass through the ven- tral commissure into the white bundles of the opposite side. A few cells send their processes into the lateral and ventro-lateral columns. In the ventral commissure three kinds of fibres cross to the opposite side : those of the cells of the dorsal cor- nua, those from cells in the ventral cornua, those from the zone between the central canal and the lateral col- umns. There seems to be a doubt in the mind of Golgi whether the cells actually pass into the columns of the opposite side or simply divide to form a reticulum. The fibres of the sensory nerves, after entering the spinal cord, subdivide like the axis-cylinders of cells of the second type. To these important statements the following were added by Ramon y Cajal, who used the same methodsand came to similar conclusions as Golgi, quite independently of the latter : (1) The nerve-fibres of the sensory roots divide after entering the cord into an ascending and descending branch, associated with the fibres of the dorsal cornua. (2) Cajal believes that the free tips of the nerve-fibres Fig. 467.-Brain of a Young Turtle (Aepidonectes spinifer). A, Entire brain from above, ol., Olfactory nerves ; Pn., epiphysis with dorsal sac ; Tr, fifth nerve. B, Longitudinal section of the same brain, o.t.r., Radix lateralis olfactorius: ac., precommissure ; tec., tectum opticum ; cp., corpus posterior or testes. C, Similar section, nearly median. Cp.g., corpus geniculatum ; gl., gif, glomerular layer of olfactory lobe ; inf., infundibulum : PP, post-plexus : med., medulla ; Pn., epiphysis. D, the epiphysis. V. Ep., ventricle of epiphysis ; P. ep., peduncle of epiphysis : Plex., plexiform part of dorsal sac ; pc., post-commissure : Aq. S, Sylvian aqueduct; s.v., venous sinus above epiphysis. E, Cells of the two sorts m mixed cortical area of the cortex. (All the figures from Journal Comp. Neurology, March, 1891.) tion based upon it agrees in all essentials with those based upon a careful study of all the structural elements. There is a distinct callosum in addition to the precommissure. There is a fibre-tract connecting the mesal division of the mantle with the optic lobe of the same side. There is a correspondence throughout the class in the distribution of cell-types. The mesal division of the mantle contains fusi- form cells only. The lateral division contains pyramidal 682 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Nervous System. Nervous System.. (SUPPLEMENT.) and their branches end free instead of forming a reticu- lum. (3) In accordance with the above, nervous influence is transmitted by contiguity or contact and not by continu- ity of the paths. Professor Kolliker, in an admirable monograph pub- lished in 1891, reports the following results : (1) The sensory root-fibres divide, as described by Ca- jal, the branches lying in the dorsal columns are superfi- cially in the substantia gelatinosa in the' marginal zone. Some of these branches may be followed four to six cen- timetres, while others turn entad and end in free tips. (2) No instance of direct connection between the fibres of the dorsal roots and the cells of the cord has been ob- served. (3) All sensory longitudinal fibres of the columns give off collaterals, which subdivide and end free in the gray matter. These are particularly numerous in Clark's col- umn and the marginal region of the gelatinosa. (4) The motor root-fibres spring from large and small plasmic processes of a part of the cells of the ventral cor- nua. (8) The dorsal commissure is composed of (a) crossing collaterals of sensory root-fibres, (5) possibly the crossing of collaterals of the dorsal part of the lateral columns. (9) Nerve-cells of three sorts, (a) motor, (J) cells of the columns, and (c) other cells whose nervous processes do not extend beyond the gray matter but simply subdivide within it (dorsal cornu). (10) Protoplasmic processes subdivide minutely and ramify in various parts of the gray and white matter, but do not give rise to nerve-fibres or anastomoses. (11) The glia-cells are formed from the elements of the medullary plate, and are either primary or second- ary, the former remaining as the ventricular epithelium. Professor Kblliker, accordingly, agrees with Golgi that the protoplasmic processes are solely nutritive, never ex- erting a nervous influence over adjacent structures. The influence exerted by one neuron upon another is purely by contact, not by continuity. Voluntary motion is- produced by the effect produced by pyramidal fibres upon the motor cells of the ventral cornua, a process which is facilitated by the collaterals and terminal brushes of the former forming a net-work around the latter and thus coming in contact with the cell. Sensory impressions are conveyed through the dorsal root-fibres, which ascend to the medulla and thence by undiscovered paths to the brain. Reflex reactions are explained by the passage of collaterals of the dorsal root- fibres to the cells of the ventral cornu. Minute Anatomy of the Cerebellum.-The most important recent additions to our knowledge of the his- tology of the cerebellum are derived from applications of the Golgi method to embryos of various groups of Vertebrates. The most significant papers are those of Golgi, Cajal, and Kblliker. It will be remembered that the cerebellum contains four layers, which, beginning at the periphery are (1) the molecular layer, containing superficial fibres ; (2) the layer of Purkinje cells ; (3) the granular layer ; (4) the white matter or axis-cylinder layer. (1) Golgi was the first to clearly prove the existence in the molecular layer of small ganglion cells. These cells are of variable form and give off " axis-cylinder " pro- cesses, which lie chiefly transverse to the convolutions, and which, in the deeper cells, give off perpendicular fibres which, according to Cajal, form a basket-like en- velope for the Purkinje cells. The peripheral cells are smaller, and are similar to other bipolar cells. Gierke had observed what he called neuroglia envelopes of the Pur- kinje cells, and it is not impossible that these " basket cells" may be of this nature, but the unanimous opin- ion of those who have studied them by the new methods is that they are nervous, and that the processes which envelop the Purkinje cells do not actually unite with the latter but simply are contiguous to them. (2) Purkinje's cells are shown by this method to have an extraordinarily abundant supply of processes similar- in structure to the protoplasmic processes. These pro- cesses ramify in the molecular layer, and, although they may reach the surface, do not anastomose or connect with the pia, the blood-vessels, or other fibres. These fibres are chiefly confined to one plane, i.e., transverse to the convolutions. The axis-cylinder process may give off a few lateral processes, but continues into the white zone. (3) The granular layer contains two kinds of cells : {a} The small nerve-cells are scattered throughout the layer and give rise to a number of short, much-branched proto- plasmic processes and to one long-axis cylinder. The latter passes between the Purkinje cells, and, after pene- trating the molecular layer, divides into two branches, which extend parallel to the surface and in the plane of the gyri for some distance. It would seem that these cells are the ones which migrate from the surface at a late period of embryonic life, as described by Herrick (see next article). (6) The larger cells of the granular layer are not numerous and are irregularly distributed. The " axis cylinder " branches very profusely. Fig. 468.-Diagrams of the Tracts and Centres in the'Cord. A, Longi- tudinal »ection. po, Ventral pyramidal tract; ps, lateral pyramidal tract; in,motor cells ; m w, motor roots. B, Cross-section to show the same elements. C, Diagram of the elements concerned in reflex ac- tion. s, Sensory root-fibre: sa, ascending, sa', descending branch ; se, sensory collaterals. D, Diagrams of the decussating fibres in the ventral commissure, sz, Cells of the fasciculi; sf. fibre of lateral bun- dle : vsf, fibre of ventral bundle : sc, sensory collateral ; sw, sensory root; sth, point of bifurcation. E, Diagram of short tracts. cells of all parts of the ventral cornua in the form of a simple axis-cylinder. (There may be small branches.) (5) The ventral and lateral columns of the cord are com- posed in part of fibres which arise in all regions of the cord. These cells frequently give off from their fibres more or fewer lateral branches, which end free in the gray matter. (6) All, or nearly all, the conducting fibres of the ven- tral and lateral columns give off collaterals which enter the gray matter of the ventral cornu and the ventral part of the dorsal cornu and terminate free, and many of the fibres themselves bend at a right angle and end in the same way. (7) The ventral commissure consists of (a) nervous processes from cells of the cinerea of all regions, which, after crossing, are continued as longitudinal fibres of the ventral and ventro-lateral columns, (b) crossed collaterals of the ventral and lateral columns, and (c) crossed proto- 683 Nervous System. Nervous System. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. The medullated fibres form a dense layer beneath the Purkinje cells, while others pass into the molecular layer (SUPPLEMENT.) ham,* in the " Memoirs of the Irish Academy of Science " bearing his name, gives an extended account of the com- parative development of the surface anatomy of the cere- bral hemispheres. We condense from this work the following statements : Complete Fissures (" Total Falten ").-The transitory fissures which appear in an early period of the develop- ment of the hemispheres are distinguished by the fact that they are a result of a series of deep infoldings of the thin cerebral wall and form shelf-like projections into the ventricles. Under normal conditions none of the fissures which appear on the lateral aspects of the hemispheres persist in the adult, though in the ape two at least are persist- ent. Upon the mesal aspect, on the contrary, the cho- roid, a portion of the arcuate, and sometimes the parieto- occipital with part of the calcarine fissures persist. The choroid and arcuate appear gs early as the fifth week. The choroid fissure occupies the lowest limit of the mesal wall, reaching the porta, cephalad, and extending caudad nearly to the extremity of the temporal lobe. Though not at first occupied by blood-vessels, and therefore not formed by them, its walls do not develop into nervous tissue but remain epithelial and are occupied by this pre- plexus. The fissura arcuata (Ammonsjurche of Mihalko- vics) makes its appearance on the mesal face of the hemi- sphere at a higher level than the choroid fissure, and while it extends, like the preceding, into the temporal lobe, it also passes cephalad into the frontal region. That portion of the hemisphere lying between the two fis- sures mentioned is termed the arcus marginalis, in connection with which are formed the callosum, the gyrus dentatus, and the fornix. The caudal part of the fissura arcu- ata is retained in adults as the hippo- campal fissure, and gives rise to the elevation in the floor of the descend- ing cornu known as the hippocampus major. Dr. Cunningham does not agree with Mihalkovics and other writers that the cephalic part of this fissure produces the callosal fissure, but regards this portion as transitory. The remainder of the complete fis- Fig. 469.-A Single Purkinje Cell (by Golgi's Method), n, Axis-cylin- der process passing into the granular layer (G). and subdivide. Such fibres also occur in various parts of the molecular layer. The connections are as yet obscure. Types of Cortical Cells.-Various observers sub- stantiate Golgi's statements that sensory and motor (psycho-motor and psycho-sensory) cells differ in the nature of their axis-cylinder or nervous process. Martinotti ■especially claims that the gan- glion cells communicate by a sin- gle nervous process with the axis- cylinder, while the protoplasmic processes do not connect directly or indirectly with the nervous fibres but tend to pass to the blood-vessels and surfaces. Two sorts of ganglion-cells are recog- nized : one in which the nervous process divides and forms a net- work or neuropilem, the other in which there is direct connection with a corona radiata fibre. Her- rick has attempted to distinguish sensory and motor cells by other methods. In those regions ven- trad of the rhinalis fissure the cortex is composed of cells whose processes subdivide to form a dense neuropilem or nerve-felting in the so-called neuroglia layer entad of olfactory fibres from the radix lateralis. This type of cell corresponds with the second type of Golgi (Fig. 472,«). The motor cells are pyramidal with a peripherad pro- cess much more conspicuous than the remainder. . Re- gions known to be sensory in function contain a large number of cells of a dif- ferent type ; the form is ra ther flask-shaped than pyramidal, and the nucleus is clear and spherical. The delimitation of areas is very incomplete, and both types of cell are to be found in nearly all parts of the dorsal cortex, though the second (sesthesodic) variety is most abundant over the occipital region. The same writer has shown that in r e n t i 1 e s and other vertebrates lower than mam- mals the distinc- tions between the two types of cells is very clearly seen. Fissures of the Cerebrum. Dr. J. I). Cunning- Fig. 470. - One of the Smaller Cells of the Gran- ular Layer. tA, Bifur- cation of axis cylinder (n); pr, protoplasmic process; M. molecular layer; P, layer of Pur- kinje cells ; G, granule layer. Figs. 472, 473. and 474.-Types of Cortical Cells (all from the Opossum). Fig. 472, m, motor (above), and s, sensory (?) cells (below). Fig. 473, sensory (?) cells. Fig. 474, pure motor cells. Fig. 472. Fig. 473. Fig. 474. sures are transitory. The niesal wall of the hemispheres being thicker than the outer the transitory fissures there first appear. They may appear as early as the eighth week, and reach a high degree of development only after Fig. 471.-Basket Cell from Molecular Layer. Pr, Protoplasmic processes: n, axis cylin- der : fk, basket-like envelope of the Pur- kinje cells. * Contribution to the Surface Anatomy of the Cerebral Hemispheres, J. D. Cunningham, Cunningham Memoirs of Royal Irish Academy, vii. 684 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Nervous System. Nervous System. the tenth week. Their maximum development is reached between the periods when the fornix and callosum ap- pear, i.e., near the beginning of the fifth month. On the mesal aspect of the hemispheres the transitory fissures, which vary in number, radiate from the arcuate fissure toward the free border of the hemisphere, and others, lying between them, but not connecting with the arcuate fissure, appear near the margin. The usual num- ber on each hemisphere appears to be eight. The primitive fissures which bound the cuneus are the precursors of the calcarine and parieto-occipital fissures. As the wall of the cerebral vesicle thickens, and the hemisphere elongates, the stellate fissures become de- tached from the arcuate fissure and gradually disappear. Upon the outer aspect the arrangement of the fissures is also radial, with the Sylvian fossa as the centre, but these fissures usually do not reach the fossa. There is frequently an additional fissure occupying the place of the future Sylvian. In some cases the precursor of the calcarine is carried horizontally around the occipital pole, appearing on the lateral surface as an external cal- carine fissure. It is regarded probable that under abnormal conditions, as when the callosum fails to develop, the transitory fissures may persist to a certain extent. The fact em- phasized by Sir William Turner, that in Macropus, where the callosum is rudimentary, the radiating fissures re- semble those of an immature human brain, is at least suggestive that the development of the callosum has some effect on the disappearance of these fissures. Dr. Cunningham fully agrees with His and Kblliker that the occipital lobe is due to a general growth and not a local out-pouching of the hemisphere ; its peculiar form is due to the transformations produced by axial flexures -especially the pons flexure. This backward thrusting of the posterior part of the hemisphere is chiefly re- sponsible for the preservation of the precursory calcarine and parieto-occipital fissures. The temporary fissures are in all probability peculiar to primates, and appear prior to the appearance of a distinct occipital lobe. The parieto-occipital and calcarine fissures form upon the mesal aspect of a posterior part of the adult hemi- sphere a >- shaped figure. The stem is directed ob- liquely ventrad and intersects the gyrus fornicatus. The parieto occiptal fissure forms the more direct continua- tion of the stem, and continues on the ectal surface as the external parieto-occipital fissure. The calcarine branch passes toward the occipital pole. The stem is called the anterior calcarine fissure. The apex of the cuneus gives off two deep annectant gyri-the gyrus cunei and an- terior cuneo-lingual gyrus. The gyrus cunei forms a barrier between the parieto-occipital fissure and the stem, while the gyrus cuneo-lingualis anterior separates the stem and the posterior part of the calcarine fissure. The calcar (hippocampus minor) is formed wholly by the stem or anterior calcarine fissure. In apes the calcarine fissure is deep and much more stable than the parieto-occipital. In the chimpanzee the gyrus cuneus is on the surface (a condition found in 3.9 per- cent, of human brains), while in the orang and gibbon the cunei may be on the surface or at the bottom of the fissure. The gyrus cunei is never absent. Cunningham believes that the whole calcarine fissure of anthropoids corresponds to the ' ' stem " of the human calcarine, or rather, the whole length of the precursor of the human calcarine is the equivalent of the ape calcarine. The posterior calcarine of man is of later origin and takes the place of an abolished portion of the original fissure. The cuneus of the ape does not have the same morpho- logical value as that of man. Only the cephalic part is present in the ape, the caudal part is absent or blended with the gyrus lingualis. In the ape the entire length of the calcarine fissure is on the tentorial face of the hemisphere. The posterior calcarine fissure is distinct from the " stem" in origin, the latter being a " complete fissure" and having unbroken continuity of existence with the fore-part precursor. The occipital and parietal indices are the distances along the mesal margin of the hemisphere intercepted by the intersection of tlie external parieto-occipital fis- sure and the fissure of Rolando respectively, in the first case measuring from the occipital pole, in the second from the parieto-occipital intersection, both these dis- tances in terms of hundredths of the entire length along the dorsal margin of the hemisphere. For the human brain the following averages are given : 5| to 6| months. .0. index, 18.8 ; P. index, 28.5. 6| to 7| months.. " 18.6; " 24.7. 71 to 8| months.. " 20.7; " 24.1. Full time foetuses, " 20.8; " 25.7. First 12 months.. " 22.3; " 25.6. 4 to 5 years " 23.2; " 24.2. 11 to 15 years.... " 20.8; " 27.4. Adults " 21.2; 25.5. For apes the following table is given : Orang.... O. index, 23.2 ; P. index, 21.3. Chimpanzee " 24.2; " 19.9. Hamadryas " 29.5; " 20.5. Cynocephalus.... " 29.7; " 22.6. Mangaby " 30.5; " 24.1. Macaque " 31.0; " 19.0. Cercopithecus.." 32.9; " 19.0. Cebus " 33.1; " 20.6. The low parietal index and high occipital index are in- structive features. In low apes there is an enormous in- crease in the occipital portion of the border ; whereas, in the high apes, the amount of increase is smaller. The relative shortness of the parietal border in high apes is due to the relative increase of the occipital and frontal borders. In low apes the reduction of the parietal por- tion is entirely due to the great size of the occipital lobe. The following summary is reproduced verbatim : 1. At an early period in the development of the cerebral hemisphere a series of deep infoldings of its thin walls make their appearance. On the exterior of each hemi- sphere these show in the form of sharply cut linear fissures. 2. Certain of these fissures are permanent; the great majority are transitory. 3. The transitory fissures, with two exceptions, have disappeared by the time the corpus callosum is fully formed. 4. A deficiency of the corpus callosum is associated with a persistence of the temporary fissures. 5. The temporary fissures indicate an important stage in the growth of the cerebrum, and are apparently asso- ciated with the mapping out of the occipital lobe. 6. A quadrupedal pause in the growth of the cerebrum brings the skull capsule into antagonism with the growth of the hemispheres, and, in consequence, the wall of the cerebrum is thrown into folds. These folds disappear as the occipital lobe assumes shape, owing to the expansion of the cranial cavity, and a restoration of growth har- mony between skull and brain. 7. Consequently it is only in Primates, which alone possess well-developed occipital lobes, that transitory in- foldings of the cerebral walls in all probability exist. 8. The two transitory fissures which do not disappear before the full development of the corpus callosum are : -(a) the external calcarine, and (b) the external per- pendicular fissure of Bischoff. In point of fact the latter fissure does not appear until after the full development of the corpus callosum. 9. The external calcarine fissure produces an infolding of the outer wall of the posterior horn of the lateral ven- tricle, which presents the same direction, and lies imme- diately opposite to the true calcarine infolding, or the calcar avis. 10. The fissure corresponding to this in ape is, as a rule, permanent, and in some species its anterior end forms in "the adult a bulging on the outer wall of the ventricle. 11. The external calcarine fissure disappears before the sixth month of foetal life in man. 685 Nervous System. Nervous System. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. 12. The external calcarine fissure is present on the outer surface of the foetal cerebrum from the beginning of the fifth month to the end of the sixth month. 13. It is a complete fissure and corresponds to the " Affenspalte" on the ape's brain. 14. The " Affenspalte " on the ape's brain is also a com- plete fissure, and presents a well-marked bulging on the outer wall of the posterior horn of the ventricle ; but, unlike the external perpendicular fissure of the human foetus, it is permanent. 15. Certain fissures, therefore, which are complete and temporary in the human brain, are complete and perma- nent in the ape's brain. 16. The complete permanent fissures in the human are : -(a) the fore part of the calcarine ; (b) the hinder part of the fissura arcuata; (c) in many cases the parieto-oc- cipital ; and (d) in some cases the mid-collateral. The Sylvian fissure is not a complete fissure. 17. Of the fissura arcuata the hinder part alone is pre- served as the fissura hippocampi. The fore part, which is generally supposed to be retained as the callosal fissure, is in reality obliterated. 18. Synchronous with the appearance of the radial transitory fissures on the mesal face of the hemisphere two fissures appear, which lie in series with the former and occupy the ground afterward held by the parieto- occipital and calcarine fissures. These may be termed the precursors of these fissures. 19. The precursor of the parieto-occipital fissure some- times shows an unbroken continuity of existence with the parieto-occipital fissure of the adult brain. In other •cases it is obliterated, and its place is afterward taken by a secondary sulcus, which attains, however, a very great depth. 20. In the adult brain the parieto-occipital fissure, even in its complete form, does not form any eminence on the inner wall of the posterior horn of the ventricle, because it does not extend downward as far as the cavity. Above its lower end the hemisphere is solid. 21. The posterior end of the calcarine precursor is in every case obliterated, and the anterior part retained. The extent of the part obliterated varies considerably in different brains. 22. The anterior preserved portion of the calcarine fis- sure forms the "stem" of the >- shaped fissural ar- rangement on this part of the hemisphere, and its hinder part corresponds to the calcar avis. 23. In the place of the hinder portion of the calcarine precursor, which is obliterated, a secondary furrow ap- pears. This may be termed the posterior calcarine sul- cus. 24. The posterior calcarine sulcus is formed in two pieces which run together and also form the "stem." In this way the entire length of what, in anatomical lan- guage, is called the calcarine fissure is formed. 25. The posterior calcarine sulcus is not a complete fissure. 26. In the ape the entire length of the calcarine fissure is represented by that portion of the fissure which in man is termed the " stem," and by that alone. The posterior calcarine sulcus does not exist in any form in the apes. 27. The cuneus, therefore, has a different morphologi- cal value in the apes and in man. In connection with this compare the abnormal human hemispheres. These exhibit certain conditions which approximate to those present in the apes. The Fossa and Fissura Syleii.-The sign of the Sylvian depression appears at the end of the second month of ■development. Dr. Cunningham summarizes his investi- gations as follows : "1. As growth proceeds the outline of the Sylvian fossa changes considerably. At first nearly circular, it elon- gates in a vertical direction and then backward on itself, and assumes a triangular outline. "2. The high prominent mantle-border or rim which surrounds the depression is divided by intervening angles into four sections, viz. : The temporal, or lower; the fronto-parietal, or upper ; the frontal, which is formed (SUPPLEMENT.) by an opening out and flattening of the primitive single anterior angle ; and an orbital, or front portion. "3. Each of these portions of the bounding rim acts as an independent line of growth, and consequently, in course of time, four opercula grow over the Sylvian area so as to enclose it. The temporal and fronto-parietal opercula appear first; the frontal and orbital do not de- velop until a much later period. " 4. The so-called three limbs of the fissure of Sylvius are formed by the meeting over the Sylvian area of the contiguous lips of the four opercula ; the posterior hori- zontal limb intervenes between the frontal-parietal and the temporal opercula ; the anterior ascending limb be- tween the frontal and fronto-parietal opercula ; the an- terior horizontal limb between the frontal and the orbital opercula. "5. The frontal operculum is therefore the same as the ' cap de Broca,' and it shows great variations in its length. It may be absent altogether, and then the two anterior limbs of the Sylvian fissure are fused into one. When the frontal operculum is reduced in length we have the Y-condition of the two anterior Sylvian rami. " 6. The Sylvian fossa once mapped out on the surface of the hemisphere, it extends very rapidly. The growth is not proportionate 'with that of the hemisphere, it is much more rapid. "7. During intra-uterine life the anterior end of the insula maintains a very nearly fixed position with refer- ence to the anterior end of the cerebrum, while the pos- terior end of the cerebrum moves rapidly toward the occipital pole. After birth the posterior end of the in- sula is fixed, while the anterior end, as growth advances, oscillates slightly-at first approaching and then retreat- ing from the anterior end of the cerebrum. "8. An anterior limb of the Sylvian fissures can only be determined by the following tests : (a) It must cut right through the entire thickness of the operculum and reach the furrow surrounding the island of Beil, (b) It must lie in front of the prsecentral sulcus. "9. A single anterior limb of the Sylvian was present in 30 per cent, of the hemispheres examined; the two anterior limbs, quite distinct and separate, w'ere present in 37.5 per cent. ; the Y-shaped condition of the two limbs was present in 31.5 per cent. " 10. The two orbital limbs of the Sylvian fissure can- not be regarded as belonging to the same category of the true anterior limbs. They are not developed as primitive deficiencies in the orbital operculum. " 11. The posterior insula is not connected with the ex- tremity of the temporal lobe, as Erbstaller has asserted, but with the limbic lobe. " 12. On the surface of the foetal insula there appear three radial furrows which correspond in every respect with the three " Primarfurchen " on the outer surface of the mantle (viz., the fissure of Rolando, the inferior pra?- central sulcus, and the vertical limb of the intra parietal sulcus). The radial furrows on the insula clearly belong to the same fissural system and intermediate links be- tween the three radial fissures on the outer surface of the hemisphere, and the three radial fissures on the insula may exist in the form of secondary sulci, cutting the margin of the fronto-parietal operculum. " 13. The fissure of Rolando is clearly the proper boun- dary of the frontal lobe. Above,*it is only separated from the calloso-marginal fissure, which bounds the lobe internally, by a narrow but superficial gyrus ; below, the inferior transverse furrow' of Erbstaller acts as an intermediate link betw'een it and the sulcus centralis insulie. The sulcus centralis insulae and the calloso- marginal sulcus are brought into close relationship at the anterior perforated spot on the base of the brain. An almost continuous fissural system, therefore, marks out the limits of the frontal portion of the cerebrum. " 14. The temporal pole is formed entirely by the for- ward growth of the fore part of the temporal operculum. " 15. In the adult brain the insula is proportionately longer in the male than in the female. At all periods of growth it would seem that the insula is relatively longer on the left side than on the right side. In the negro 686 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Nervous System. Nervous System. brain it would appear that the insula is relatively shorter than in the European brain. " 16. In the anthropoid ape the so-called anterior limb of the Sylvian fissure is not homologous with either of the anterior limbs in man. " 17. In the chimpanzee and orang there are only two opercula, viz., the fronto-parietal and the temporal. The frontal and orbital opercula of the human brain are entirely absent in the anthropoid cerebrum. " 18. Restricting the term insula to that part of the hemisphere surface which is concealed from view by opercula, the extent of this area in the ape is very much less than in man. The central index is 18.2 in the chim- panzee and 21.5 in the orang ; in man the central index is 29.6. In the lower apes the central index is higher than in the anthropoids. "19. In man the field of the insula shows marked changes with reference to the cranial wall during intra- uterine life. More and more of its area comes to lie un- der cover of the parietal bone, and relatively less under cover of the frontal bone, as development proceeds. In the adult the coronal line cuts the insula in such a man- ner that thirteen per cent, of its length lies in front of it, and eighty-seven per cent, behind it. " 20. In the chimpanzee and the low apes no part of the insula lies in front of the coronal line ; in the orang the upper and anterior corner of the insula projects slightly in front of this line. " 21. In the human infant and young child, as well as in the ape, the point at which the stem of the Sylvian fis- (SUPPLEMENT.) and continuous in some of the lower apes {e.g., Cebus), becomes broken up in the human brain into a group of furrows which present different relations to each other in different cases. "2. Three of the elements of the sulcus in the human brain, viz., the sulcus post-centralis inferior, the ramus horizontalis, and the ramus occipitalis, are disrupted portions of the original fis- sure ; one, the sulcus post- centralis superior, is a super- added element. (Fig. 482.) " 3. In the development of the sulcus in the human foetal brain, all the four seg- ments of the sulcus have, as a rule, an independent ori- gin, although, as Pausch has shown, the sulcus post-cen- tralis inferior and the sulcus horizontalis very frequently appear as one continuous furrow. " 4. The sulcus post-cen- tralis inferior usually ap- pears first ; then the ramus horizontalis and ramus oc- cipitalis ; and last of all the sulcus post-centralis supe- rior. "5. In Cebus there is no sulcus post-centralis supe- rior, it is present, however, in most of the old wrnrld apes, e.g., the baboon, macaque, gibbon, chimpanzee, orang, and gorilla. (Fig. 476.) " 6. In the chimpanzee and orang there is reason to be- lieve that this segment of the post-central sulcus consists of two elements, one placed above the other. (Figs. 479 and 480.) " 7. Eberstaller's third and lower segment of the post- central sulcus (viz., the sulcus post-centralis transversus) is not only present in man, but also in the majority of the old-world apes. " 8. In the apes the intra-parietal sulcus is deeper than the fissure of Rolando, the opposite is the case in man. This would seem to indicate that the morphological value of the sulci is different in man and the apes. The phy- logeny and ontogeny of these furrows are in apparent variance with each other. The fissure of Rolando ap- pears first on the developing cerebrum of the human foe- tus, yet it is the intra-parietal sulcus which first makes its appearance in the evolution of the primate cere- brum. . . . "11. In man there appears to be a general tendency toward a union of the two originally distinct post-central elements of the sulcus, and a divorce from the lower of those of the ramus horizontalis. . . . " 13. The ramus oc- cipitalis was connect- ed with the ramus horizontalis in 63.7 per cent, of the adult human hemispheres examined. " 14. The union be- tween these two ele- ments of the sulcus, as Ecker and Wilder have shown, is much more common on the left side than on the right. " The sulcus transversus of Ecker is not the homologue of the Aftenspalter in the apes, but merely a terminal bi- furcation of the ramus occipitalis." The Sulcus Pracentralis.-" 1. The sulcus praecentralis inferior in the human brain is composed of a vertical and Fig. 476. - Cerebrum of Cebus Albifrons. /, Sulcus frontalis inferior ; p.c., sulcus post-cen- tralis inferior; r, fissure of Rolando; «, Sylvian fissure; p, intra-parietal sulcus; p3, ramus horizontalis ; p*, ramus occipi- talis ; st, furrow corresponding to sulcus transversus occipi- talis of Ecker ; p.o., parieto- occipital fissure; an., first an- nectant gyrus; a J., ape cleft. Fig. 475.-Left Cerebral Hemisphere of a Chacma Baboon, p, Various parts of the intra parietal system of furrows ; jo1, sulcus post-centralis inferior ; p2, two parts of the sulcus post-centralis superior ; p3, ramus horizontalis; f.p., sulcus post-centralis transversus ; o, occipital oper- culum. sure reaches the outer surface of the hemisphere is situ- ated relatively further back than in the human adult. "22. The Sylvian fissure is relatively longer in the left hemisphere than in the right, and in the ape than in man. . . . "28. In the cebus the Sylvian fissure lies above the level of the squamous suture ; in the macaque, homa- dryas, and orang, it lies immediately subjacent to the fore- part of the suture : in Cynocephalus anubis and the chim- panzee the fissure is situated in its fore-part below the level of the front part of the suture. " 29. The relative depth of the parietal and temporal lobes in the lower apes resembles that in the human child ; in the anthropoid ape the relative parietal depth of the hemisphere exceeds that in the human adult." The Fissure of Rolando.-Cunningham found that in sixty per cent, of the brains examined the upper end of the fissure of Rolando turned over the mesal border of the hemisphere ; in nineteen per cent, its ventral end was connected by a shallow transverse sulcus with the Syl- vian fissure. The fissure of Rolando appears in two parts, the lower two-thirds appears before, and indepen- dent of, the upper third. The relative position of the fissure of Rolando is remarkably constant. The upper fronto-Rolandic index is 53.3, the lower 43.3. In anthro- poid the upper end of the fissure of Rolando is placed relatively further back than in man. The average Ro- landic angle in the human brain is 71.7. The average relative length of the fissure of Rolando is 39.3. The Intro-parietal Sulcus.-" 1. The entire sulcus, single Fig. 477.-The Outer Surface of the Cere- brum of Cebus Albifrons. r, Fissure of Rolando ; p.c.i., sulcus praecentralis in- ferior : A, ramus horizontalis ; Z2, in- ferior frontal sulcus. 687 Nervous System. Nervous System. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. a horizontal limb. The latter is carried forward into the middle of the frontal convolution. " 2. This furrow is the earliest to appear on the outer surface of the frontal lobe of the foetal brain. In some cases it is seen in the fifth-month cerebrum in the form of a long, deep, vertical sulcus, which subsequently un- dergoes*^, retrograde development before its adult condi- tion is reached. In many cases, in its early condition, it presents a form in every respect comparable with that observed in the cere- brum of the low ape (Cebus). Frequently it is developed in sev- eral pieces. "3. The sulcus praecentralis superior is closely connected with the basal part of the first frontal fur- row. It is usually developed along with it. It consists of two pieces-an uppei' and a lower-which may be partially or completely separated from each other, as well as from the basal part of the first frontal furrow by an annectant gyrus. "4. Two additional furrows belonging to the praecen- tral system are occasionally present, viz., the sulcus praecentralis medius and the sulcus praecentralis margi- nalis. "5. The sulcus praecentralis medius may arise in two different ways : (a) It may be formed by the ramus hori- zontalis of the inferior prae- central sulcus divorced from the vertical stem and assum- ing a very oblique or an almost vertical position ; (b) it may consist of a new ele- ment placed between the superior and inferior praecen- tral furrows, but showing a closer connection with the former. . . . "12. The superior frontal gyrus and the middle frontal gyrus are each partially sub- divided into two tiers or sub- divisions by furrows which may be respectively termed the sulcus frontalis mesialis and the sulcus frontalis me- dius. " 13. Both of these fur- rows have secured a firm footing in the human brain, but only one (viz., the fron- talis medius) lias established itself upon the brain of the chimpanzee." . . . "17. The sulcus frontalis mesialis is absent or poorly developed in the brain of the negro. . . . "20. The sulcus praecen- tralis inferior and the inferior frontal sulcus are the furrows which are most firmly im- pressed upon the brain of the apes. In Cebus they alone are present; in Calithrix there are also traces of the sulcus praecentralis superior and sulcus fronto-orbitalis ; in the baboon there are, in addition, a rudimentary sul- cus frontalis superior, and perhaps (?) traces of a sulcus frontalis medius. (Figs. 475 and 476.) " 21. In the chimpanzee and the gorilla the sulcus fron- talis medius is often present in a form precisely similar to that seen in the human brain ; in the orang the condi- (SUPPLEMENT.) tion of this sulcus is doubtful ; m the gibbon the sulcus frontalis medius is absent. " 22. In the chimpanzee, therefore, the same convolu- tion tiers may be seen as in man, with this exception : the superior frontalis is never split into two by a sulcus frontalis mesialis. "23. The inferior frontal convolution of apes is very different from that in man. "24. The frontal and orbi- tal Sylvian opercula are com- pletely absent in the apes. " 25. Consequently, a por- tion of the island of Reil is uncovered and exposed on the surface of the cerebrum. "26. The sulcus fronto- orbitalis of apes corresponds to the anterior limiting sul- cus of the island of Reil in man. ' ' 27. There are no anterior limbs of the Sylvian fissure in the anthropoid apes. The so-called anterior limb of the Sylvian fissure corresponds to the anterior free border of the f r o n t o - parietal oper- culum. "28. About the seventh month of foetal life the in- ferior prsecentral sulcus of the human brain attains a position which it retains un- altered throughout all the subsequent changes of growth ; previous to this it is placed relatively further back on the surface of the hemisphere. " 29. At first it is placed in front of the coronal suture. The sutural line, howTever, moves forward so that the sulcus ultimately comes to lie behind it. " 30. In the ape cerebrum the inferior prsecentral sulcus lies relatively much further forward than in the cerebrum of man. It may be placed subjacent to, or in front of, the coronal line." Morphology of the Primitive Brain Tube.-Embryology and comparative anatomy are continually throwing new light on the problem of the archetypal structure of the neuraxis. The most obscure point and one of fundamental im- Fig. 478. - Another view of the same ; p.c.a., Sulcus pnecentralis inferior (?); e.o., a slight trace of the sulcus fronto- orbitalis. Other letters as in Fig. 477. Fig. 480.-Right Hemisphere of a Male Orang, Six Years Old. r, Fissure of Rolando ; p1, sulcus post-centralis inferior; p3, two parts of sulcus post-centralis superior; p3, ramus horizon- talis; p4,ramus occipitalis; a.n., first parieto-occipital annectant gyrus ; p.o., parieto-occipital fis- sure ; a.f., bottom of " ape- cleft ; " o, cut surface of occip- ital operculum ; s, fissure of Syl- vius ; t1, parallel sulcus. Fig. 479.-Cerebral Hemisphere of Young Female Chimpanzee, as seen from above. The oper- culum on each side has been removed, r, Fissure of Ro- lando ; pl, sulcus post-centralis inferior ; p2, two portions of sulcus post-centralis superior ; p3, ramus horizontalis; p*, ramus occipitalis ; b, terminal bifurcation of the intra-parie- tal sulcus : p.o., parieto-occip- ital fissure ; a.n., first parieto- occipital annectant gyrus; a, deep annectant gyrus in the course of the intra parietal sul- cus ; c, secondary sulcus in the superior parietal lobule; a.f., bottom of the " ape-cleft; " o, cut surface of occipital oper- culum ; f1, parallel sulcus. Fig. 481.-Right Cerebral Hemisphere of a Male Orang-outang, Six Years Old. p. Sulcus frontalis superior : f2, sulcus frontalis inferior : f.m., sulcus frontalis medius ; e.o., sulcus fronto-orbitalis; p.c., sulcus prae- centralis inferior : p.c.a., sulcus pnecentralis superior; p.c.i., sulcus praecentialis inferior : r, fissure of Rolando ; p1, sulcus post-centralis inferior ; p2, sulcus post-centralis superior ; p3, sulcus horizontalis in- tra-parietalis ; e.c., external calcarine fissure; t1, parallel sulcus; t2, second temporal sulcus; H1, ZZ2. H3, transverse temporal gyri of Heschl : Zf, insula ; A', first annectant gyrus ; S3, anterior free border of the fronto-parietal operculum ; O, anterior edge of the occipital operculum. 688 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. (SUPPLEMENT.) Nervoug System. Nervous System. portance in the morphogenesis of the brain is the primi- tive cephalic end of the neuraxis. The two prevailing schools are represented by Professor His and Professor Kupffer, respectively. It* is quite possible that many of the contradictions grow out of the fact that the various authors have been employing different axes. Professor His uses an imaginary line lying in the base of the tube, and finds that its cephalic extremity coin- the tube closes, though it often remains open for a time, forming the neuropore. At the point where the frontal suture unites with the ventral is a transverse ridge-the basilary ridge-which marks the front of the brain base. Professor His distinguishes a basal plate and lateral alae, the former giving rise to the motor centres, including the bridge, peduncles, pars subthalamica, and at the cephalic extremity it gives rise to the optic vesicles. The tendency of the brain to fold sharply in the mes- encephalic region is common to all vertebrates. This fold, which gives rise to the saddle cleft, thrusts a part of tlie base into the cavity of the mesencephalon, produ- cing the tegmental tuberosity, behind which is the recess of the isthmus, and in front of which is the mammillary fossa. The former has been identified by Btirckhardt as a constant element, and the latter has been shown by Herrick to be represented by distinct paired vesicles even in fishes. The recess of Rathke penetrates more or less caudad of the basilary ridge, and the caudal wall of the recessus infundibuli gives rise to the infundibulum and the upper fundament of the hypophysis. The saccus vasculosus lies between the mammillary recess and the infundibu- lum. The formation of the hypoaria is due, in the opin- ion of the writer, to a reduction of the mesencephalic fold. In this case, instead of the formation of the teg- mental tuberosity, the excess of the base is thrust cephalo- laterad and appears to occupy the walls of the dienceph- alon. Respecting the roof of the diencephalon, Professor His24 has given a summary which is so useful that it is given somewhat at length : "With regard to the structures called epiphyses, re- cent times have begun to make sharper distinctions, since Goette has shown that the roof of the diencephalon in amphibia forms two projections, a cephalic (' ader- geflechtknoten ') and a caudal or true pineal. Since then, the presence of several rudiments has been repeat- edly noticed, most recently by Burckhardt in Protop- terus, and Eydeshymer in Amblystoma. The latter au- thor calls only the cephalic projection epiphysis, the caudal paraphysis, and very justly lays emphasis on the fact that the caudal structure appears later than the other. An examination of the profiles of various em- bryonic brains shows that epiphyses may arise at more than two places. " The choroidal node found by Goette at the cephalic margin of the diencephalon in amphibia, belongs to the category of cephalic epiphyses. Here it is easy to dis- tinguish them, as the distance between the two is very great. The epiphysis of Selachii also arises from the cephalic part of the roof of the diencephalon. Later, however, almost the w hole diencephalic roof is elevated, and there results the familiar projection included be- tween fore-brain and mid-brain, and whose base extends caudad nearly to the post-commissure. Similar condi- tions prevail in teleosts. An epiphysis of the cephalic roof of the diencephalon was encountered by me in a hu- man embryo 10.5 mm. in length. " The roof-plate forms at this stage a small median longitudinal ridge with two lateral angles. Cephalad this ridge is triangular, and the median angle separates for a short distance as an independent appendage. "When I first discovered this structure, some years since, I fancied I had solved the history of the pineal, and only a careful profile reconstruction revealed the fact that this body belongs to the very front of the roof of the diencephalon. The body seems later to disappear in the folds of the plexus. " The true epiphysis develops much later, after the post-commissure is already formed, by protrusion of the most caudal part of the diencephalic roof. In the bird brain, as even Remak noticed, the epiphysis arises from the middle of the diencephalic roof, and the same is true for the epiphysis of reptiles. " Thus we distinguish epiphyses of the front, middle, and posterior of the diencephalon roof. For the latter name pineal may be usefully retained. " Besides these special forms of outgrowth, we en- Fig. 482.-Outer Surface of a Cerebral Hemisphere in the Early Part of the Seventh Month : Z1, Parallel sulcus ; p.c.i., inferior frontal; f1, sulcus frontalis primus ; p.c.s., sulcus praacentralis superior ; r, fissure of Rolando ; p, intra parietal sulcus; p1, sulcus post-centralis inferior ; p3, ramus horlzontalls of the intra-parietal sulcus ; p4, ramus occipi- talis ; e.p., fissura perpendicularis externa. cides with the basilary ridge immediately above the re- cess of Sessel. Others employ a median axis which would terminate in front of the chiasm (Kiebel). Others seem to employ a dorsal axis which, according to His, would terminate in the upper extremity of the terma. To us it seems that the first of these is the most satis- factory reference line, since the diameter of the tube varies greatly, and the length from the termination of the ventral to that of the dorsal axis is by no means con- stant, while the point of the infundibulum is relatively constant. This selection has another advantage in mak- Fig. 483.-Hinder Portion of Cerebral Hemisphere of Full-term Fcetus, showing Conditions Approximating to those of Anthropoid Apes, r, Upper end of fissure of Rolando; c.m., calloso-marginal sulcus; p.o., parieto-occipital fissure ; cun., cuneus ; c, gyrus cunei; p.c., praecu- neus; g.f., gyrus fornicatus; c.c., callosum; c.f., collateral fissure; C, posterior secondary calcarine fissure ; S, " stem " of calcarine fis- sure. ing the chorda coextensive with the neural axis, and ob- viating the necessity for a distinction between chordal and prechordal brain segments. When the medullary tube closes it has three lines of union or sutures ; the ventral suture marks the line where the chorda was separated, the dorsal suture is the line where the medullary tube has separated from the ectoderm, the frontal suture is the line where the front of 689 Nervous System. Nervous System. REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. counter an elevation of the whole roof, as in Selachii and Teleostei. Goette's " Adergeflechtknoten" certainly per- tains exclusively to the group of anterior projections, while the so-called parietal eye of reptiles belong to the middle group." [Later investigations proved it to belong to the posterior group.] Burckhardt gives the following arrangement of the parts of the diencephalic roof : 1, Prseplexus ; 2, velum ; 3, " Zirbelpolster " (paraphysis); 4, supra-commissura ; 5, pineal ; 6, intercalary segment; 7, post-commissura. This seems to be a satisfactory arrangement, except that it fails to take into account the development of the pro- jections from the region of the pneplexus which are mentioned by His. There is a remarkable constancy in arrangement of these parts. The writer has shown that the current opinion that the pineal is absent in reptiles rests on a mistake. In serpents the pineal is greatly modi- fied, being a very large lymphoidal body occupying a sling of membrane above the supra-commissure, and is connected either with it or the " Polster," or roof in front of the commissure. The structure of the body is very like that of the glandular part of the pituitary. In turtles there is a large and well-developed tubular pineal as well as a strong flexiform outgrowth cephalad. It is easy to discover that the tube is connected directly with the third ventricle just caudad of the supra-commissure. In ganoid fishes the tubular pineal is well developed and is closely associated with the dorsal sac or expanded roof of the thalamus and aula. There is an enormous plexiform development of the pallium taking the place of the praeplexus. In all essentials teleosts agree with the ganoids. Among the most remarkable structures are the hypo- aria of fishes (Fig. 484) which are not externally obvi- ous in other groups. The hypoaria have usually been considered appendages of the thalamus, but Herrick insists that they are morpho- logically caudad of the mammillaria, and contain ele- ments of the pes pedunculi or the cephalic part of the floor of the mesencephalon. In this connection he iden- tifies the peculiar cells with which the motor peduncles unite with similar cells in the reptilian mesencephalon and that of mammals. The corpus rotundus is identi- fied with the nidulus ruber, and the latter is shown to be the centre of sensory redistribution, as the before-men- (SUPPLEMENT.) tion of the saddle cleft. The isthmus, or cephalic neu- romere of the medulla, is obscured by the development of cerebellum and pons and has no corresponding nerve- roots. The trigeminus springs from two neuromeres, the facial and auditory from a single neuromere, as does the glosso-pharyngeal. It is not yet clear what relation is sustained by the tenth and twelfth nerves to the neuro- meres from which they spring. The relation of the chorda to the neural tube, from a morphological point of view, is greatly illuminated by the discovery of Seienka,25 Fig. 485.-Illustration showing the Relation between Chordal Sac, Ali mentary Canal, and Brain Flexure in Opossum. (From Seienka.) that in the opossum there is a curious tortuous tube, ap- parently related to the cephalic end of the entoderm, but which is really a hollowed and contorted modification of the chorda. Seienka reminds us of the origin of the chorda as an originally hollow diverticle from the ento- derm. The contorted modification must be ascribed to the head-fold which interferes with the normal forward growth of this body, and coils it within the space behind the infundibulum. This tubular body is quite distinct from the hypophy- sis, which develops as usual from the ectoderm. This fact, taken in connection with Professor His's statement that the neuropore is coextensive with the whole area from infundibulum to terma, strongly enforces the view that the infundibulum (or at least the basilary ridge) is at the morphological front of the neuraxis. C. L. Herrick. 1 Hatchek : Die Metamerie des Amphioxus und des Ammocetes, Ver- handlungen der Anat. Gesellschaft attf der sechsten Versammlung in Wien, 1892. 2 Rabi: Ueber die Metamerie des Wirbelthierkopfes. As above. 3 Kupffer : The Development of the Cranial Nerves. Tr. by Strong. Journ. Comp. Neurology. October, December, 1892. 4 Kupffer : The Development of Petromyzon Planeri, Arch. f. Mik. Anat., 1890. 6 Hatchek : Zur Metamerie der Wirbelthiere, Anat. Anzeiger, viii., 2, 3. 9 Edinger : Das Zwi>chenhim der Selachier und der Amphibien, Ab- handl. Senckenbergischen naturf. Gesellschaft, xviii., 1892. 7 Burckhardt : Das Centralnervensystem von Protopterus annectens. Berlin, 1892. 8 Kupffer : Studien zur Vergleichenden Entwickelungsgeschichte des Kopfes der Kranioten, 1, 1893. 9 Willey: The Later Larval Development of Amphioxus, Quart. Journ. Micro. Science, xxxii., 1891. 10 N. Goronowitsch : Das Gehirn und die Cranialnerven von Acipenser ruthenus, Morph. Jahrbuch, Bd. xiii.. 1888, pp. 427 to 674. 11 Herrick ; Morphology of the Nervous System, iii. Topography and Histology of the Brain of Certain Ganoid Fishes, Journ. Comp. Neurol., June, 1892. 12 Rabl-Riickhard : Zur Deutung und Entwickelung des Gehirns der Knochenfische, Arch. f. Anat. u. Phys., 1882. 13 Rabl-Riickhard : Das Grosshirn der Knochenfische. The same, 1883. 14 Herrick : Contributions to the Morphology of the Brain of Bony Fishes, ii.-Studies on the Brain of some American Fresh-water Fishes, Journal Comp. Neurology, vols. i., ii. 15 Burckhardt : Untersuchungen am Him und Geruchsorgan von Triton und Ichthyophis, Zeitschrift f. wissensch. Zoologie, lii., 3. 19 Osborn : Contribution to the Internal Structure of the Amphibian Brain, Journ. Morphol., ii. 17 Osborn : The Relation of the Dorsal Commissures of the Brain to the Formation of the Encephalic Vesicles, American Naturalist, October, 1887. Fig. 484.-Transection of the Brain of a Small Bass. Diagrammatic. Especially designed to show the position of the mammillaria and for- nix tract (tr. f.) as well as the general relations ; gel. tr. tor., gelatin- ous tract from the torus to periphery of the tectum. tioned cells are of motor connection (especially with the cerebellum). The great consolidation in this region in mammals, and higher vertebrates generally, is largely effected by what Professor His terms the saddle cleft, i.e., the fold of the floor of the mesencephalon, which fills the cavity of the mesencephalon. In embryonic reptilia the mesen- cephalon is obviously double, and this seems to be uni- versally true at some stage. The cephalic diverticle is pushed cephalad and participates in the curvature of the first embryonic vesicle, while the second is lost in forma- 690 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Nervous System. Nervous System. 18 Osborn : The Origin of the Corpus Callosum, Morph. Jahrbuch., xii. 19 Edinger : Untersuchung uber die vergleichende Anatomie des Gehirns, das Vorderhirn. Frankfort a.-M., 1888. 20 Herrick: Notes upon the Brain of the Alligator, Journ. Cincinnati Soc. Nat. Hist., January, 1890. 21 Herrick : Topography and Histology of the Brain of Certain Rep- tiles, Journ. Comp. Neurology, vol. 1., March, 1891. 22 Turner, C. H. : Morphology of the Avian Brain, Journ. of Comp. Neurology, vol. i. 23 Meyer, Ad. : Ueber das Vorderhirn eininger Reptilien, Zeitsch. f. wis. Zool., lv., i. 21 His, W. : Zur Allgemeinen Morphologie des Gehirns. Archiv f. Anat. u. Physiol., 1892, v„ vi. 26 Seienka : Studien liber Entwickelungsgeschichte der Thiere, iv. (SUPPLEMENT.) vous elements are formed. The primitive cells which are thus modified are spongioblasts, and are the non- nervous elements in the neuro-epithelium. The spongi- NERVOUS SYSTEM : HISTOGENESIS OF ITS ELE- MENTS. To Professor William His, Sr., of Leipzig, science is chiefly indebted for the generalizations formu- lating the laws of development of the nervous elements. Three sources may be recognized for the various ele- Fig. 489 (From Herrick). - Part of the Mesencephalon of a Gar- ter-snake Embryo, showing nu- merous neuroblasts, with kary- okinetic figures and two spongi- oblasts (sp') in the same process. Fig. 488 (After His). - Spongi- oblasts, with Mitosis of Nuclei. oblast, then, consists of an inner columnar portion, a mid- dle nucleated zone, and a peripheral marginal or "veil" portion. The columnar inner portion never loses its in- dividuality, and forms the so-called lining epithelium of the ventricles and other cavities of the central nervous system. In reality this endyma is not a true epithelium, but is composed of the persisting bases of cells which, morpho- logically, and generally structurally, retain a connection with the ectal part of the brain-tube. The so-called con- nective or supporting elements of the retina, organ of Corti, and even of the olfactory epithelium, have essentially simi- lar structure. The spongioblasts multiply to supply the exigencies of the growth of the organ, and mitosis may occasionally be de- tected in the nuclei. (Figs. 488 and 489.) Professor His considers that the spaces in the marginal portion of the neurospongium are all pro- duced from vacuoles in the cells, i.e., are intra-cellular. The pres- ent writer is convinced that in lower vertebrates, at least, these spaces are intercellular, and the peripheral portion of the cells sim- ply collapses, leaving the inter- spaces to be filled by an exudate soft and nutritive enough to facili- tate the growth of the neurons. (Figs. 489, 490, 491.) That the entire thickness