§p v^^> (V^^-J PROF. EVANS' VALEDICTORY ADDRESS. ADDRESS TO THE GRADUATING CLASS OF RUSH MEDICAL COLLEGE ON THE NATURE, UTILITY, AND OBLIGATIONS, OF THE MEDICAL PROFESSION DELIVERED FEBRUARY 7,185 \ BY JOHN EVANS, M.D.,PROF. &c. PUBLISHED BY THE CLASS C. A. SWAN; Printer. CHICAGO: 1850. Rush Medical College, 7 Chicago, Jan. 1850. ) Prof. Evans:— Dear Sir—Oft the 25 Inst., the undersigned were appointed a Com- mittee, to procure acopy ol the Valedictory Address you are to deliver to the Graduating Class, for publication, which we respectfully solicit; With the best wishes for your health and prosperity, we are, Yours, Respectfully. E. J. FRENCH of Illinois, W. W. PERRY, of Michig-an. S. A. PEASE, of Wisconain. JNO.M. PHIPPS; of Indiana. J. C. MACON, of Iowa. JNO. H. MURPHY, of Minnesota. ORSON C.HOYT, of New York. J. R. SNELLING.of Ohio. Committee. To Messrs. French, Perry, Pease, Phipps, Macon, Murphy, Hoyt, and Snelling:— Gentlemen :—I herewith send you a copy of the Address, thanking you for the generous confidence manifested in asking its publication before you have heard it. Please communicate to the class my thanks for their uniform kindness, with assurances of my warmest wishes for their future success and happiness. Your friend, truly, JOHN EVANS. Chicago, February 2, 1850. ADDRESS: Graduates of Rush Medical College:— With the ceremonies of this evening, which have conferred upon you the highest honors of our cherished institution, is closed the interesting relation that has for a time existed be- tween you and its Faculty, of Pupils and Professors, and the pleasing task has been assigned to me, of welcoming you as brethren into the ranks of the Medical Profession. Accept then, my hearty congratulations upon your having attained to the high distinction of the Doctorate, and worthily assumed a fraternal relation, with the members of our time-honored and useful profession. The Diplomas which you have re- ceived from the hands of our President, give you our strongest recommendation. They will afford you an introduction to all honorable Physicians, and certify to them and to the world, (for they are in our vernacular tongue,) that you have entered the profession by the straight gate, and that you have attained that high degree of knowledge and skill that entitles you to their respect and confidence. We trust, that, by as diligent an application to your studies, and as faithful a dis- charge of your duties in after life, as have marked the period of your pupilage, you will never forfeit that respect, nor betray that confidence. [«] In giving you our parting address, no subject seems more appropriate for our consideration, than the nature, utility, and obligations of that profession, the cultivation and practice of • which, is to be the business of your lives. Permit me, there- fore, to call your attention to a few thoughts; 1st upon the na- ture of the science that we study and teach: 2d, upon the utility of the art we inculcate and practice, and 3d, upon the rspon- sibilities imposed by the office of Physician: on each of which, 1 must necessarily be brief. There is, in the public mind, a well settled conviction of the necessity of efforts for the relief of the afflicted, which not only has the sanction of Him who said "they that are whole need not a physician, but they that are sick," but which has existed in all ages and countries since the time when man partook of "------the fruit " Of that forbidden tree, whose mortal taste "Brought death into the world, and all our woe." This conviction has always secured patronage to those who pretend to the art of healing, whether they relied upon the agency of religious rites and ceremonies, superstitious incan- tations, the royal touch, the empirical use of medicines, or the well directed remedial agents, of the scientific physician.— Medicine as an art, then, however rude, has existed •' time whereof the memory of man runneth not to the contrary," but as a science, it cannot boast of such high antiquity; yet having originated with the cultivation of letters, being one of the elements of civilization, it has a growth of over two thou- sand years. The science of medicine at the present day comprises all the facts which throw light upon the health and disease of man, and the means of preserving the former, and relieving the latter. It consists of several departments, each of which is a science of itself. But as it has been the object of years of 15] devoted study on your part, to become acquainted with these, by which your minds have been endued with their great and important principles, I pass them by with a simple enumera- tion and definition. Anatomy, the foundation of our knowledge of the body, and of the nature and seat of the injuries and diseases of the sys- tem, comprises a complete understanding of the form, size, structure and situation of each organ and tissue, even to its minutest texture and composition, only perceptible through the power of the microscope, and the analytic crucible of the Chemist. Physiology teaches the part that each organ and tissue plays in the great phenomenon of life, and reveal* the laws of their action in health. It gives a knowledge of the various stages in the organization and development of living beings. Among other things, it shows how the blood performs its wonderful rounds of circulation; and is changed by nutrition, respiration and secretion,—being the medium through which the body is built up and pulled down. How the nervous system endows different parts of the body with sensation, and forms the mys- terious channels of communication between them, and how the mind, through these telegraphic connections, with elec- trical velocity holds intercourse with different parts of the system, and exerts its control over them. Pathology, teaches the nature of the various deviations from healthy action and natural structure which constitute disease, including their causes, symptoms, detection, situation and consequences. Chemistry makes us familiar with the nature of the elemen- tary substances by which we are surrounded, and of which all material objects are composed,—their various combinations, affinities, and laws of action in the composition and decom- position pi bodies. It is of the greatest importance to the un- derstanding of physiology, pathology, and the action of reme-