* ;r-:* ■'■■ ■•■'.si >^#* G587i 1833 avaaii ivnoiivn jnoiqiw jo a«»»«ii tvnoiivn inoiojw ji ])C^ i 5- X 'fr»^ s «ARY OF MEDICINE NATIONAL LIBRARY OF MEDICINE NATIONAL LI iv a 8 11 ivnoiivn aNOiaaw jo ahvubii tvnoiivn jndiojw j IARY OF MEDICINE NATIONAL LIBRARY OF MEDICINE NATIONAL I . %X f jtW Vfttftk 5 '0, 'N 3NI3I03W JO ABVaeiT TVNOIiVN 3NI3I03W JO Aavaail TVNOI f much A NATURALLST. 69 gratification. Along the edge of the river, where the depth of water was not greater than from four feet to as shallow as twelve inches, an observer would discover a succession of circular spots cleared of the surrounding grass, and showing a clear sandy bed. These spots, or cleared spaces, we may regard as the nest of this beauti- ful fish. There, balanced in the transparent wave, at the distance of six or eight inches from the bottom, the sun- fish is suspended in the glittering sunshine, gently sway- ing its beautiful tail and fins; or, wheeling around in the limits of its little circle, appears to be engaged in keep- ing it clear of all incumbrances. Here the mother de- posits her eggs or spawn, and never did hen guard her callow brood with more eager vigilance, than the sun-fish the little circle within which her promised offspring are deposited. If another individual approach too closely to her borders, with a fierce and angry air she darts against it, and forces it to retreat. Should any small, and not too heavy object be dropped in the nest, it is examined with jealous attention, and displaced if the owner be not satis- fied of its harmlessness. At the approach of man she flies with great velocity into deep water, as if willing to conceal that her presence was more than accidental where first seen. She may, after a few minutes, be seen cau- tiously venturing to return, which is at length done with velocity; then she would take a hurried turn or two around, and scud back again to the shady bowers formed by the river grass which grows up from the bottom to 70 RAMBLES OF within a few feet of the surface, and attains to twelve, fifteen, or more feet in length. Again she ventures forth from the depths; and if no further cause of fear present- ed, would gently sail into the placid circle of her home, and with obvious satisfaction explore it in every part Besides the absolute pleasure I derived from visiting the habitations of these glittering tenants of the river, hanging over them from my little skiff, and watching their every action, they frequently furnished me with a very acceptable addition to my frugal table. Situated as my boarding house was, and all the inmates of the house busily occupied in raising vegetables to be sent to market, our bill of fare offered little other change than could be produced by varying the mode of cookery. It was either broiled bacon and potatoes, or fried bacon and potatoes, or cold bacon and potatoes, and so on at least six days out of seven. But, as soon as I became acquainted with the habits of the sun-fish, I procured a neat circular iron hoop for a net; secured to it a piece of an old seine, and whenever I desired to dine on fresh fish, it was only ne- cessary to take my skiff, and push her gently along from one sun-fish nest to another, myriads of which might be seen along all the shore. The fish, of course, darted off as soon as the boat first drew near, and during this absence the net was placed so as to cover the nest, of the bottom of which the meshes but slightly intercepted the view. Finding all things quiet, and not being disturbed by the net, the fish would resume its central station, the net was A NATURALIST. 7] suddenly raised, and the captive placed in the boat In a quarter of an hour, I could generally take as many in this way as would serve two men for dinner, and when an acquaintance accidentally called to see me, during the season of sun-fish, it was always in my power to lessen our dependence on the endless bacon. I could also always select the finest and largest of these fish, as while stand- ing up in the boat, one could see a considerable number at once, and thus choose the best. Such was their abun- dance, that the next day would find all the nests re-occu- pied. Another circumstance connected with this matter gave me no small satisfaction; the poor blacks, who could rarely get time for angling, soon learned how to use my net with dexterity; and thus, in the ordinary time al- lowed them for dinner, would borrow it, run down to the shore, and catch some fish to add to their very moderate allowance. 72 RAMBLES OF NO. VI. After the sun-fish, as regular annual visitants of the small rivers and creeks containing salt or brackish water, came the crabs in vast abundance, though for a very dif- ferent purpose. These singularly constructed and inter- esting beings furnished me with another excellent subject for observation; and, during the period of their visitation, my skiff was in daily requisition. Floating along with an almost imperceptible motion, a person looking from the shore might have supposed her entirely adrift; for as I was stretched at full length across the seats, in order to bring my sight as close to the water as possible without inconvenience, no one would have observed my presence from a little distance. The crabs belong to a very exten- sive tribe of beings, which carry their skeletons on the outside of their bodies, instead of within; and of neces- sity the fleshy, muscular, or moving power of the body, is placed in a situation the reverse of what occurs in ani- mals of a higher order, which have internal skeletons or solid frames to their systems. This peculiarity of the crustaceous animals and various other beings, is attended with one apparent inconvenience; when they have grown A NATURALIST. 73 large enough to fill their shell or skeleton completely, they cannot grow farther, because the skeleton being ex- ternal, is incapable of enlargement. To obviate this diffi- culty, the Author of nature has endowed them with the power of casting off the entire shell, increasing in size, and forming another equally hard and perfect, for several seasons successively, until the greatest or maximum size is attained, when the change or sloughing ceases to be necessary, though it is not always discontinued on that account. To undergo this change with greater ease and security, the crabs seek retired and peaceful waters, such as the beautiful creek I have been speaking of, whose clear, sandy shores are rarely disturbed by waves causing more than a pleasing murmur, and where the number of enemies must be far less in proportion than in the bois- terous waters of the Chesapeake, their great place of concourse. From the first day of their arrival in the lat- ter part of June, until the time of their departure, which in this creek occurred towards the first of August, it was astonishing to witness the vast multitudes which flocked towards the head of the stream. It is not until they have been for some time in the creek, that the moult or sloughing generally commences. They may be then observed gradually coming closer in shore, to where the sand is fine, fairly exposed to the sun, and a short distance farther out than the lowest water mark, as they must always have at least a depth of three or four inches water upon them. 7 74 RAMBLES OF The individual having selected his place, becomes per- fectly quiescent, and no change is observed during some hours but a sort of swelling along the edges of the great upper shell at its back part. After a time this posterior edge of the shell becomes fairly disengaged like the lid of a chest, and now begins the more difficult work of with- drawing the great claws from their cases, which every one recollects to be vastly larger at their extremities and be- tween the joints than the joints themselves. A still greater apparent difficulty presents in the shedding of the sort of tendon which is placed within the muscles. Never- theless, the Author of nature has adapted them to the accomplishment of all this. The disproportionate sized claws undergo a peculiar softening, which enables the crab, by a very steadily continued, scarcely perceptible effort, to pull them out of their shells, and the business is completed by the separation of the complex parts about the mouth and eyes. The crab now slips out from the slough, settling near it on the sand. It is now covered by a soft, perfectly flexible skin; and though possessing precisely the same form as before, seems incapable of the slightest exertion. Notwithstanding that such is its con- dition, while you are gazing on this helpless creature, it is sinking in the fine loose sand, and in a short time is covered up sufficiently to escape the observation of care- less or inexperienced observers. Neither can one say how this is effected, although it occurs under their immediate * observation; the motions employed to produce the dis- A NATURALIST. 75 placement of the sand are too slight to be appreciated, though it is most probably owing to a gradual lateral motion of the body by which the sand is displaced in the centre beneath, and thus gradually forced up at the sides until it falls over and covers the crab. Examine him within twelve hours, and you will find the skin becoming about as hard as fine writing paper, producing a similar crackling if compressed; twelve hours later the shell is sufficiently stiffened to require some slight force to bend' it, and the crab is said to be in buckram, as in the first stage it was in paper. It is still helpless, and offers no resistance; but at the end of thirty-six hours, it shows that its natural instincts are in action, and by the time forty-eight hours have elapsed, the crab is restored to the exercise of all his functions. I have stated the above as the periods in which the stages of the moult are accom- plished, but I have often observed that the rapidity of this process is very much dependent upon the temperature, and especially upon sunshine. A cold, cloudy, raw, and disagreeable spell happening at this period, though by no means common, will retard the operation considerably, protracting the period of helplessness. This is the har- vest season of the white fisherman and of the poor slave. The laziest of the former are now in full activity, wading along the shore from morning till night, dragging a small boat after them, and holding in the other hand a forked stick with which they raise the crabs from the sand. The period during which the crabs remain in the paper state 76 RAMBLES OF is so short, that great activity is required to gather a sufficient number to take to market, but the price at which they are sold is sufficient to awaken all the cupidity of the crabbers. Two dollars a dozen is by no means an uncommon price for them, when the season first comes on; they subsequently come down to a dollar, and even to fifty cents, at any of which rates the trouble of col lecting them is well paid. The slaves search for them at night, and then are obliged to kindle a fire of pine-knots on the bow of the boat, which strongly illuminates the surrounding water, and enables them to discover the crabs. Soft crabs are, with great propriety, regarded as an exquisite treat by those who are fond of such eating; and though many persons are unable to use crabs or lob- sters in any form, there are few who taste of the soft crabs without being willing to recur to them. As an ar- tick of luxury they are scarcely known north of the Chesapeake, though there is nothing to prevent them from being used to considerable extent in Philadelphia, espe- cially since the opening of the Chesapeake and Delaware canal. The summer of 1829 I had the finest soft crabs from Baltimore. They arrived at the market in the after- noon, were fried according to rule, and placed in a tin butter kettle, then covered for an inch or two with melt- ed lard, and put on board the steam boat which left Bal- timore at five o'clock the same afternoon. The next morn- ing before ten o'clock they were in Philadelphia, and at one they were served up at dinner in Germantown. The A NATURALIST. 77 only difficulty in the way is that of having persons to at- tend to their procuring and transmission, as when cooked directly after they arrive at market, and forwarded with as little delay as above mentioned, there is no danger of their being the least injured. At other seasons, when the crabs did not come close to the shore, I derived much amusement by taking them in the deep water. This is always easily effected by the aid of proper bait; a leg of chicken, piece of any raw meat, or a salted or spoiled herring, tied to a twine string of sufficient length, and a hand net of convenient size, is all that is necessary. You throw out your line and bait, or you fix as many lines to your boat as you please, and in a short time you see, by the straightening of the line, that the bait has been seized by a crab, who is try- ing to make off with it. You then place your net where it can conveniently be picked up, and commence steadily but gently to draw in your line, until you have brought the crab sufficiently near the surface to distinguish him; if you draw him nearer, he will see you and immediately let go, otherwise his greediness and voracity will make him cling to his prey to the last. Holding the line in the left hand, you now dip your net edge foremost into the water at some distance from the line, carry it down per- pendicularly until it is five or six inches lower than the crab, and then with a sudden turn out bring it directly before him, and lift up at the same time. Your prize is generally secured, if your net be at all properly placed; 7* 78 RAMBLES OF for as soon as he is alarmed, he pushes directly down- wards, and is received in the bag of the net It is better to have a little water in the bottom of the boat to throw them into, as they are easier emptied out of the net, al- ways letting go when held over the water. This a good crabber never forgets, and should he unluckily be seized by a large crab, he holds him over the water and is freed at once, though he loses his game. When not held over the water, they bite sometimes with dreadful obstinacy, and I have seen it necessary to crush the forceps or claws before one could be induced to let go the fingers of a boy. A poor black fellow also placed himself in an awkward situation; the crab seized him by a finger of his right hand, but he was unwilling to lose his captive by holding him over the water, instead of which he at- tempted to secure the other claw with his left hand, while he tried to crush the biting claw between his teeth. In doing this, he somehow relaxed his left hand, and with the other claw, the crab seized poor Jem by his under lip, which was by no means a thin one, and forced him to roar with pain. With some difficulty he was freed from his tormentor, but it was several days before he ceased to excite laughter, as the severe bite was followed by a swelling of the lip, which imparted a most ludicrous expression to a naturally comical countenance. A NATURALIST. 79 NO. VII. On the first arrival of the crabs, when they throng the shoals of the creeks in vast crowds, as heretofore men- tioned, a very summary way of taking them is resorted to by the country people, and for a purpose that few would suspect without having witnessed it. They use a three pronged fork or gig made for this sport, attached to a long handle ; the crabber standing up in the skiff, pushes it along until he is over a large collection of crabs, and then strikes his spear among them. By this several are transfixed at once and lifted into the boat, and the opera- tion is repeated until enough have been taken. The pur- pose to which they are to be applied is to feed the hogs, which very soon learn to collect in waiting upon the beach when the crab spearing is going on. Although these bristly gentry appear to devour almost all sorts of food with great relish, it seemed to me that they regard- ed the crabs as a most luxurious banquet; and it was truly amusing to see the grunters, when the crabs were thrown on shore for them, and were scampering off in various directions, seizing them in spite of their threat- ening claws, holding them down with one foot, atfl} 80 RAMBLES OF speedily reducing them to a state of helplessness by break- ing off their forceps. Such a crunching and cracking of the unfortunate crabs I never have witnessed since; and I might have commiserated them more, had not I known that death in some form or other was continually await- ing them, and that their devourers were all destined to meet their fate in a few months in the sty, and thence through the smoke house to be placed upon our table. On the shores of the Chesapeake I have caught crabs in a way commonly employed by all those who are unpro- vided with boats and nets. This is to have a forked stick and a baited line, with which the crabber wades out as far as he thinks fit, and then throws out his line. As soon as he finds he has a bite, he draws the line in, cau- tiously lifting but a very little from the bottom. As soon as it is near enough to be fairly in reach, he quickly, yet with as little movement as possible, secures the crab by placing the forked stick across his body and pressing him against the sand. He must then stoop down and take hold of the crab by the two posterior swimming legs, so as to avoid being seized by the claws. Should he not wish to carry each crab ashore as he catches it, he pin- ions or spansels (as the fishermen call it) them. This is a very effectual mode of disabling them from using their biting claws, yet it is certainly not the most humane operation; it is done by taking the first of the sharp- pointed feet of each side, and forcing it in for the length of the joint behind the moveable joint or thumb of the A NATURALIST. 81 opposite biting claw. The crabs are then strung upon a string or wythe, and allowed to hang in the water until the crabber desists from his occupations. In the previous article crabs were spoken of as curious and interesting, and the reader may not consider the particulars thus far given as being particularly so. Perhaps, when he takes them altogether, he will agree that they have as much that is curious about their construction as almost any animal we have mentioned, and in the interesting details we have as yet made but a single step. The circumstance of the external skeleton has been mentioned, but who would expect an animal, as low in the scale as a crab, to be furnished with ten or twelve pair of jaws to its mouth ? Yet such is the fact, and all these variously constructed pieces are provided with ap- propriate muscles, and move in a manner which can scarcely be explained, though it may be very readily comprehended when once observed in living nature. But, after all the complexity of the jaws, where would an in- experienced person look for their teeth? surely not in the stomach ? Nevertheless, such is their situation; and these are not mere appendages, that are called teeth by courte- sy, but stout regular grinding teeth, with a light brown surface. They are not only within the stomach, but fixed to a cartilage nearest to its lower extremity, so that the food, unlike that of other creatures, is submitted to the action of the teeth as it is passing from the stomach; in- stead of being chewed before it is swallowed. In some 82 RAMBLES OF species the teeth are five in number; but throughout this class of animals the same general principle of construc- tion may be observed. Crabs and their kindred have no brain, because they are not required to reason upon what they observe; they have a nervous system excellently suited to their mode of life, and its knots or ganglia send out nerves to the organs of sense, digestion, motion, &c. The senses of these beings are very acute, especially their sight, hearing and smell. Most of my readers have heard of crabs' eyes, or have seen these organs in the animal on the end of two little projecting knobs, above and on each side of the mouth; few of them, however, have seen the crab's ear, yet it is very easily found, and is a little triangular bump placed near the base of the feelers. This bump has a membrane stretched over it, and communi- cates with a small cavity, which is the internal ear. The organ of smell is not so easily demonstrated as that of hearing, though the evidence of their possessing the sense to an acute degree is readily attainable. A German na- turalist inferred, from the faet of the nerve corresponding to the olfactory nerve in man being distributed to the an- tennae, in insects, that the antennas were the organs of smell in them. Cuvier and others suggest that a similar arrangement may exist in the Crustacea. To satisfy my- self whether it was so or not, I lately dissected a small lobster, and was delighted to find that the first pair of nerves actually went to the antennae, and gave positive support to the opinion mentioned. I state this, not to A NATURALIST. 83 claim credit for ascertaining the truth or inaccuracies of a suggestion, but with a view of inviting the reader to do the same in all cases of doubt. Where it is possible to refer to nature for the actual condition of facts, learned authorities give me no uneasiness. If I find that the structure bears out their opinions, it is more satisfactory; when it convicts them of absurdity, it saves much fruit- less reading, as well as the trouble of shaking off preju- dices. The first time my attention was called to the extreme acuteness of sight possessed by these animals, was during a walk along the flats of Long Island, reaching to- wards Governor's Island in New York. A vast number of the small land crabs, called fiddlers by the boys (gecar- cinus,) occupy burrows or caves dug in the marshy soil, whence they come out and go for some distance, either in search of food or to sun themselves. Long before I approached close enough to see their forms with distinct- ness, they were scampering towards their holes, into which they plunged with a tolerable certainty of escape; these retreats being of considerable depth, and often com- municating with each other, as well as nearly filled with water. On endeavouring cautiously to approach some others, it was quite amusing to observe their vigilance; to see them slowly change position, and from lying ex- tended in the sun, beginning to gather themselves up for a start should it prove necessary; at length standing up as it were on tiptoe, and raising their pedunculated eyes 84 RAMBLES OF as high as possible. One quick step on the part of the individual approaching was enough—away they would go, with a celerity which must appear surprising to any one who had not previously witnessed it. What is more remarkable, they possess the power of moving equally well with any part of the body foremost, so that when endeavouring to escape, they will suddenly dart off to one side or the other, without turning round, and thus elude pursuit. My observations upon the crustaceous animals have extended through many years, and in very various situations ; and for the sake of making the gene- ral view of their qualities more satisfactory, I will go on to state what I remarked of some of the genera and spe- cies in the West Indies, where they are exceedingly nu- merous and various. The greater proportion of the genera feed on animal matter, especially after decomposition has begun; a large number are exclusively confined to the deep waters, and approach the shoals and lands only during the spawning season. Many live in the sea, but daily pass many hours upon the rocky shores for the pleasure of basking in the sun; others live in marshy or moist ground, at a considerable distance from the water, and feed principally on vegetable food, especially the sugar cane, of which they are extremely destructive. Others again reside habitually on the hills or mountains, and visit the sea only once a year for the purpose of depositing their eggs in the sand. All those which reside in bur- rows made in moist ground, and those coming daily on A NATURALIST. 85 the rocks to bask in the sun, participate in about an equal degree in the qualities of vigilance and swiftness. Many a breathless race have I run in vain, attempting to inter- cept them, and prevent their escaping into the sea. Many an hour of cautious and solicitous endeavour to steal upon them unobserved, has been frustrated by their long sight- ed watchfulness; and several times, when, by extreme care and cunning approaches, I have actually succeeded in getting between a fine specimen and the sea, and had full hope of driving him farther inland, have all my an- ticipations been ruined by the wonderful swiftness of their flight, or the surprising facility with which they would dart off in the very opposite direction, at the very moment I felt almost sure of my prize. One day, in par- ticular, I saw on a flat rock, which afforded a fine sunning place, the most beautiful crab I had ever beheld. It was of the largest size, and would have covered a large din- ner plate, most beautifully coloured with bright crimson below, and a variety of tints of blue, purple, and green above; it was just such a specimen as could not fail to excite all the solicitude of a collector to obtain. But, it was not in the least deficient in the art of self-preserva- tion ; my most careful manoeuvres proved ineffectual, and all my efforts only enabled me to see enough of it to augment my regrets to a high degree. Subsequently I saw a similar individual in the collection of a resident; this had been killed against the rocks during a violent hurricane, with very slight injury to its shell. I offered 8 86 RAMBLES OF high rewards to the black people if they would bring me such a one, but the most expert among them seemed to think it an unpromising search, as they knew of no way of capturing them. If I had been supphed with some powder of nux vomica with which to poison some meat, I might have succeeded. i A NATURALIST. 87 NO. VIII. The fleet running crab (cypoda pugilator,) mentioned as living in burrows dug in a moist soil, and preying chiefly on the sugar cane, is justly regarded as one of the most noxious pests that can infest a plantation. Their burrows extend to a great depth, and run in various di- rections ; they are also, Uke those of our fiddlers, nearly full of muddy water, so that, when these marauders once plump into their dens, they may be considered as entirely beyond pursuit. Their numbers are so great, and they multiply in such numbers, as in some seasons to destroy a large proportion of a sugar crop, and sometimes their ravages, combined with those of the rats and other plun- derers, are absolutely ruinous to the sea-side planters. I was shown, by the superintendent of a place thus infest- ed, a great quantity of cane utterly killed by these crea- tures, which cut it off in a peculiar manner, in order to suck the juice; and he assured me that, during that sea- son, the crop would be two thirds less than its average, solely owing to the inroads of the crabs, and rats, which if possible are still more numerous. It was to me an ir- 88 RAMBLES OF resistible source of amusement to observe the air of spite and vexation with which he spoke of the crabs; the rats he could shoot, poison, or drive off for a time with dogs. But the crabs would not eat his poison, while sugar cane was growing ; the dogs could only chase them into their holes ; and if, in helpless irritation, he sometimes fired his gun at a cluster of them, the shot only rattled over their shells like hail against a window. It is truly desira- ble that some summary mode of lessening their number could be devised, and it is probable that this will be best effected by poison, as it may be possible to obtain a bait sufficiently attractive to ensnare them. Species of this genus are found in various parts of our country, more especially towards the south. About Cape May, our friends may have excellent opportunities of testing the truth of what is said of their swiftness and vigilance. The land crab, which is common to many of the West India islands, is more generally known as the Jamaica crab, because it has been most frequently described from observation in that island. Wherever found, they all have the habit of living, during great part of the year, in the highlands, where they pass the day time, concealed in huts, cavities, and under stones, and come out at night for their food. They are remarkable for collecting in vast bodies, and marching annually to the sea side, in order to deposit their eggs in the sand; and this accom- plished, they return to their former abodes, if undisturbed, They commence their march in the night, and move in A NATURALIST. 89 the most direct line towards the destined point. So ob- stinately do they pursue this route, that they will not turn out of it for any obstacle that can possibly be surmounted. During the day time they skulk and he hid as closely as possible, but thousands upon thousands of them are taken for the use of the table by whites and blacks, as on their seaward march they are very fat and of fine flavour. On the homeward journey, those that have escaped capture are weak, exhausted, and unfit for use. Before dismiss- ing the crabs, I must mention one which was a source of much annoyance to me at first, and of considerable interest afterwards, from the observation of its habits. At that time I resided in a house delightfully situated about two hundred yards from the sea, fronting the setting sun, having in clear weather the lofty mountains of Porto Rico, distant about eighty miles, in view. Like most of the houses in the island, ours had seen better days, as was evident from various breaks in the floors, angles rotted off the doors, sunken sills, and other indications of decay. Our sleeping room, which was on the lower floor, was especially in this condition; but as the weather was dehghtfully warm, a few cracks and openings, though rather large, did not threaten much inconvenience. Our bed was provided with that indispensable accompaniment, a musquito bar or curtain, to which we were indebted for escape from various annoyances. Scarcely had we ex- tinguished the light, and composed ourselves to rest, than we heard, in various parts of the room, the most startling 8* 90 RAMBLES OF noises. It appeared as if numerous hard and heavy bo- dies were trailed along the floor; then they sounded as if climbing up by the chairs and other furniture, and fre- quently something like a large stone would tumble down from such elevations with a loud noise, followed by a pe- culiar chirping note. What an effect this produced upon entirely inexperienced strangers, may well be imagined by those who have been suddenly waked up in the dark, by some unaccountable noise in the room. Finally, these invaders began to ascend the bed; but happily the mus- quito bar was securely tucked under the bed all around, and they were denied access, though their efforts and tumbles to the floor produced no very comfortable reflec- tions. Towards daylight they began to retire, and in the morning no trace of any such visitants could be per- ceived. On mentioning our troubles, we were told that this nocturnal disturber was only Bernard the Hermit, called generally the soldier crab, perhaps from the pecu- liar habit he has of protecting his body by thrusting it into an empty shell, which he afterwards carries about, until he outgrows it, when it is relinquished for a larger. Not choosing to pass another night quite so noisily, due care was taken to exclude Monsieur Bernard, whose knockings were thenceforward confined to the outside of the house. I baited a large wire rat trap with some corn meal, and placed it outside of the back door, and in the morning, found it literally half filled with these crabs, from the largest sized shell that could enter the trap, A NATURALIST. 91 down to such as were not larger than a hickory nut. Here was a fine collection made at once, affording a very considerable variety in the size and age of the specimens, and the different shells into which they had introduced themselves. The soldier, or hermit crab, when withdrawn from his adopted shell, presents about the head and claws a con- siderable family resemblance to the lobster. The claws, however, are very short and broad, and the body covered with hard shell only in that part which is liable to be exposed or protruded. The posterior or abdominal part of the body, is covered only by a tough skin, and tapers towards a small extremity, furnished with a sort of hook- like apparatus, enabling it to hold on to its factitious dwelling. Along the surface of its abdomen, as well as on the back, there are small projections, apparently in- tended for the same purpose. When once fairly in pos- session of a shell, it would be quite a difficult matter to pull the crab out, though a very little heat applied to the shell will quickly induce him to leave it. The shells they select are taken solely with reference to their suitable- ness, and hence you may catch a considerable number of the same species, each of which is in a different species or genus of shell. The shells commonly used by them, when of larger size, are those of the whilk, which are much used as an article of food by the islanders, or the smaller conch [strombus] shells. The very >oung her- mit crabs are seen in almost every variety of small shell 92 RAMBLES OF found on the shores of the Antilles. I have frequently been amused by seeing ladies, eagerly engaged in making a col- lection of these beautiful little shells, and not dreaming of their being tenanted by a living animal, suddenly startled, on displaying their acquisitions, at observing them to be actively endeavouring to escape -, or on intro- ducing the hand into the reticule to produce a particular fine specimen, to receive a smart pinch from the claws of the little hermit The instant the shell is closely ap- proached or touched, they withdraw as deeply into the shell as possible, and the small ones readily escape obser- vation, but they soon become impatient of captivity, and try to make off. The species of this genus (pagurus) are very numerous, and during the first part of their lives are all aquatic. That is, they are hatched in the little pools about the margin of the sea, and remain there until those that are destined to live on land are stout enough to commence their travels. The hermit crabs which are altogether aquatic are by no means so careful to choose the lightest and thinnest shells, as the land troops. The aquatic soldiers may be seen towing along shells of most disproportionate size ; but their relatives, who travel over the hills by moonlight, know that all unnecessary incum- brance of weight should be avoided. They are as pug- nacious and spiteful as any of the crustaceous class; and when taken, or when they fall and jar themselves, con- siderably, utter a chirping noise, which is evidently an angry expression. They are ever ready to bite with their A NATURALIST. 93 claws, and the pinch of the larger individuals is quite painful. It is said, that when they are changing their shells, for the sake of obtaining more commodious cover- ings, they frequently fight for possession, which may be true where two that have forsaken their old shells meet, or happen to make choice of the same vacant one. It is also said, that one crab is sometimes forced to give up the shell he is in, should a stronger chance to desire it. This, as I never saw it, I must continue to doubt; for I cannot imagine how the stronger could possibly accom- plish his purpose, seeing that the occupant has nothing to do but keep close quarters. The invader would have no chance of seizing him to pull him out, nor could he do him any injury by biting upon the surface of his hard claws, the only part that would be exposed. If it be true that one can dispossess the other, it must be by some contrivance of which we are still ignorant. These sol- dier crabs feed on a great variety of substances, scarcely refusing any thing that is edible; like the family they belong to, they have a decided partiality for putrid meats, and the planters accuse them also of too great a fondness for the sugar cane. Their excursions are altogether noc- turnal, in the day time they he concealed very effectually in small holes, among stones, or any kind of rubbish, and are rarely taken notice of, even where hundreds are within a short distance of each other. The larger soldier crabs are sometimes eaten by the blacks, but they are not much sought after even by them, as they are generally regard- 94 RAMBLES OF ed with aversion and prejudice. There is no reason, that we are aware of, why they should not be as good as many other crabs, but they certainly are not equally es- teemed. A NATURALIST. 95 NO. IX. Those who have only lived in forest countries, where vast tracts are shaded by a dense growth of oak, ash, chestnut, hickory and other trees of deciduous foliage, which present the most pleasing varieties of verdure and freshness, can have but little idea of the effect produced on the feelings by aged forests of pine, composed in great degree of a single species, whose towering summits are crowned with one dark green canopy, which successive seasons find unchanged, and nothing but death causes to vary. Their robust and gigantic trunks rise an hun- dred or more feet high in purely proportioned columns, before the limbs begin to diverge; and their tops, densely clothed with long bristling foliage, intermingle so closely as to allow of but slight entrance to the sun. Hence the undergrowth of such forests is comparatively slight and thin, since none but shrubs and plants that love the shade, can flourish under this perpetual exclusion of the animat- ing and invigorating rays of the great exciter of the vegetable world. Through such forests, and by the merest foot paths in great part, it was my lot to pass many miles almost every day; and had I not endeavoured 96 RAMBLES OF to derive some amusement and instruction from the study of the forest itself, my time would have been as fatiguing to me, as it was certainly quiet and solemn. But wher- ever nature is, and under whatever form she may present herself, enough is always proffered to fix attention and produce pleasure, if we will condescend to observe with carefulness. I soon found that even a pine forest was far from being devoid of interest, and shall endeavour to prove this by stating the result of various observations made during the time I lived in this situation. The common pitch, or as it is generally called Norway pine, grows from a seed, which is matured in vast abun- dance in the large cones peculiar to the pines. This seed is of a rather triangular shape, thick and heavy at the part by which it grows from the cone, and terminating in a broad membranous fan or sail, which, when the seeds are shaken out by the wind, enables them to sail obliquely through the air to great distances. Should an old corn- field or other piece of ground be thrown out of cultivation for more than one season, it is sown with the pine seeds by the winds, and the young pines shoot up as closely and compactly as hemp. They continue to grow in this manner until they become twelve or fifteen feet high, until their roots begin to encroach on each other, or until the stoutest and best rooted begin to overtop so as entirely to shade the smaller. These gradually begin to fail, and finally dry up and perish, and a similar process is con- tinued until the best trees acquire room enough to grow A NATURALIST. 97 without impediment. Even when the young pines have attained to thirty or forty feet in height, and are as thick as a man's thigh, they stand so closely together, that their lower branches, which are all dry and dead, are inter- mingled, sufficiently to prevent any one from passing between the trees without first breaking these obstruc- tions away. I have seen such a wood as that just men- tioned, covering an old corn-field, whose ridges were still distinctly to be traced, and which an old resident informed me he had seen growing in corn. In a part of this wood which was not far from my dwelling, I had a delightful retreat, that served me as a private study or closet, though enjoying all the advantages of the open air. A road that had once passed through the field, and was of course more compacted than any other part, had denied access to the pine seeds for a certain distance, while on each side of it they grew with their usual density. The ground was covered with the soft layer or carpet of dried pine leaves which gradually and imperceptibly fall through- out the year, making a most pleasant surface to tread on, and rendering the step perfectly noiseless. By beating off with a stick all the dried branches that projected towards the vacant space, I formed a sort of chamber, fifteen or twenty feet long, which above was canopied by the densely mingled branches of the adjacent trees, which altogether excluded or scattered the rays of the sun, and on all sides was so shut in by the trunks of the young 9 98 RAMBLES OF trees, as to prevent all observation. Hither during the hot season, I was accustomed to retire, for the purpose of reading or meditation; and within this deeeper solitude, where all was solitary, very many of the subsequent movements of my life were suggested or devised. From all I could observe, and all the enquiries I could get answered, it appeared that this rapidly growing tree does not attain its full growth until it is eighty or ninety years old, nor does its time of full health and vigour much exceed an hundred. Before this time it is liable to the attacks of insects, but these are of a kind that bore the tender spring shoots to deposit their eggs therein, and their larva? appear to live principally on the sap which is very abundant, so that the tree is but slightly injured. But after the pine has attained its acme, it is attacked by an insect which deposits its egg in the body of the tree, and the larva devours its way through the solid substance of the timber; so that after a pine has been for one or two seasons subjected to these depredators, it will be fairly riddled, and if cut down is unfit for any other purpose than burning. Indeed, if delayed too long, it is poorly fit for firewood, so thoroughly do these insects destroy its substance. At the same time that one set of insects is engaged in destroying the body, myriads of others are at work under the bark, destroying the sap vessels, and the foliage wears a more and more pale and sickly appearance as the tree declines in vigour. If not cut down, it eventually dies, becomes leafless, stripped of A NATURALIST. 99 its bark, and as the decay advances, all the smaller branches are broken off; and it stands with its naked trunk and a few ragged limbs, as if bidding defiance to the tempest which howls around its head. Under favour- able circumstances, a large trunk will stand in this con- dition for nearly a century, so extensive and powerful are its roots, so firm and stubborn the original knitting of its giant frame. At length some storm, more furious than all its predecessors, wrenches those ponderous roots from the soil, and hurls the helpless carcass to the earth, crushing all before it in its fall. Without the aid of fire, or some peculiarity of situation favourable to rapid de- composition, full another hundred years will be requisite to reduce it to its elements, and obliterate the traces of its existence. Indeed, long after the lapse of more than that period, we find the heart of the pitch pine still pre- serving its original form, and from being thoroughly im- bued with turpentine, become utterly indestructible ex- cept by fire. If the proprietor attend to the warnings afforded by the woodpecker, he may always cut his pines in time to prevent them from being injured by insects. The wood- peckers run up and around the trunks, tapping from time to time with their powerful bills. The bird knows at once by the sound whether there be insects below or not. If the tree is sound, the woodpecker soon forsakes it for another; should he begin to break into the bark, it is to catch the worm, and such trees are at once to be marked 100 RAMBLES OF for the axe. In felling such pines, I found the woodmen alway anxious to avoid letting them strike against neigh- bouring sound trees, as they said that the insects more readily attacked an injured tree than one whose bark was unbroken. The observation is most probably correct, at least the experience of country folks in such matters is rarely wrong, though they sometimes give very odd rea- sons for the processes they adopt. A full grown pine forest is at all times a grand and majestic object to one accustomed to moving through it. Those vast and towering columns, sustaining a waving crown of deepest verdure; those robust and rugged limbs standing forth at a vast height overhead, loaded with the cones of various seasons; and the diminutiveness of all surrounding objects compared with these gigantic child- ren of nature, cannot but inspire ideas of seriousness and even of melancholy. But how awful and even tremen- dous does such a situation become, when we hear the first wailings of the gathering storm, as it stoops upon the lofty summits of the pine, and soon increases to a deep hoarse roaring, as the boughs begin to wave in the blast, and the whole tree is forced to sway before its power. In a short time the fury of the wind is at its height, the loftiest trees bend suddenly before it, and scarce regain their upright position ere they are again obliged to cower beneath its violence. Then the tempest literally howls, and amid the tremendous reverberations A NATURALIST. 101 of thunder, and the blazing glare of the lightning, the unfortunate wanderer hears around him the crash of nu- merous trees hurled down by the storm, and knows not but the next may be precipitated upon him. More than once have I witnessed all the grandeur, dread, and deso- lation of such a scene, and have always found safety either by seeking as quickly as possible a spot where there were none but young trees, or if on the main road choosing the most open and exposed situation out of the reach of the large trees. There, seated on my horse, who seemed to understand the propriety of such patience, I would quietly remain, however thoroughly drenched, until the fury of the wind was completely over. To say nothing of the danger from falling trees, the peril of being struck by the lightning, which so frequently shivers the loftiest of them, is so great as to render any attempt to advance at such time highly imprudent. Like the ox among animals, the pine tree may be looked upon as one of the most universally useful of the sons of the forest. For all sorts of building, for firewood, tar, turpentine, rosin, lampblack, and a vast variety of other useful products, this tree is invaluable to man. Nor is it a pleasing contemplation, to one who knows its usefulness, to observe to how vast an amount it is annu- ally destroyed in this country, beyond the proportion that nature can possibly supply. However, we are not dis- posed to believe that this evil will ever be productive of 9* 102 RAMBLES OF very great injury, especially as coal fuel is becoming annually more extensively used. Nevertheless, were I the owner of a pine forest, I should exercise a consider- «||' able degree of care in the selection of the wood for the axe. A NATURALIST. 103 NO. X. Among the enemies with which the farmers of a poor or light soil have to contend, I know of none so truly formidable and injurious as the crows, whose numbers, cunning, and audacity, can scarcely be appreciated, ex- cept by those who have had long continued and numer- ous opportunities of observation. Possessed of the most acute senses, and endowed by nature with a considerable share of reasoning power, these birds bid defiance to al- most all the contrivances resorted to for their destruc- tion ; and when their numbers have accumulated to vast multitudes, which annually occurs, it is scarcely possible to estimate the destruction they are capable of effecting. Placed in a situation where every object was subjected to close observation, as a source of amusement, it is not surprising that my attention should be drawn to so con- spicuous an object as the crow; and having once com- menced remarking the peculiarities of this bird, I con- tinued to bestow attention upon it during many years, in whatever situation it was met with. The thickly wooded and well watered parts of the state of Maryland, as affording them a great abundance of food, and almost 104 RAMBLES OF entire security during their breeding season, are espe- cially infested by these troublesome creatures, so that at some times of the year they are collected in numbers which would appear incredible to any one unaccustomed to witness their accumulations. Individually, the common crow (corvus corona) may be compared in character with the brown or Norway rat, being, like that quadruped, addicted to all sorts of mis- chief, destroying the lives of any small creatures that may fall in its way, plundering with audacity wherever any thing is exposed to its rapaciousness, and triumphing by its cunning over the usual artifices employed for the destruction of ordinary noxious animals. Where food is at any time scarce, or the opportunity for such marauding inviting, there is scarcely a young animal about the farm yards safe from the attacks of the crow. Young chickens, ducks, goslings, and even little pigs, when quite young and feeble, are carried off by them. They are not less eager to discover the nests of domestic fowls, and will sit very quietly in sight, at a convenient distance, until the hen leaves the nest, and then fly down and suck her eggs at leisure. But none of their tricks excited in me a greater interest, than the observation of their attempts to rob a hen of her chicks. The crow, alighting at a little distance from the hen, would advance in an apparently careless way towards the brood, when the vigilant parent would bristle up her feathers, and rush at the black rogue to drive him off. After several such approaches, the hen A NATURALIST. 105 would become very angry, and would chase the crow to a greater distance from the brood. This is the very ob- ject the robber has in view, for as long as the parent keeps near her young, the crow has very slight chance of success; but as soon as he can induce her to follow him to a little distance from the brood, he takes advantage of his wings, and before she can regain her place, has flown over her, and seized one of her chickens. When the cock is present, there is still less danger from such an attack, for chanticleer shows all his vigilance and gallantry in protecting his tender offspring, though it frequently hap- pens that the number of hens with broods renders it im- possible for him to extend his care to all. When the crow tries to carry off a gosling from the mother, it re- quires more daring and skill, and is far less frequently successful than in the former instance. If the gander be in company, which he almost uniformly is, the crow has his labour in vain. Notwithstanding the advantages of flight and superior cunning, the honest vigilance and de- termined bravery of the former are too much for him. His attempts to approach, however cautiously conducted, are promptly met, and all his tricks rendered unavailing, by the fierce movements of the gander, whose powerful blows the crow seems to be well aware might effectually disable him. The first time I witnessed such a scene, I was at the side of the creek, and saw on the opposite shore a goose with her goslings beset by a crow; from the apparent alarm of the mother and brood, it seemed to 106 RAMBLES OF me they must be in great danger, and I called to the owner of the place, who happened to be in sight, to in. form him of their situation. Instead of going to their relief, he shouted back to me, to ask if the gander was not there too; and as soon as he was answered in the af- firmative, he bid me be under no uneasiness, as the crow would find his match. Nothing could exceed the cool impudence and pertinacity of the crow, who, perfectly regardless of my shouting, continued to worry the poor gander for an hour, by his efforts to obtain a nice gos- ling for his next meal. At length convinced of the fruit lessness of his efforts, he flew off to seek some more easily procurable food. Several crows sometimes unite to plun- der the goose of her young, arid are then generally sue cessful, because they are able to distract the attention of the parents, and lure them farther from their young. In the summer the crows disperse in pairs for the pur- pose of raising their young, and then they select lofty trees in the remotest parts of the forest, upon which with dry sticks and twigs they build a large strong nest, and line it with softer materials. They lay four or five eggs, and when they are hatched, feed, attend, and watch over their young with the most zealous devotion. Should any one by chance pass near the nest while the eggs are still unhatched, or the brood are very young, the parents keep close, and neither by the slightest movement nor noise betray their presence. But if the young are fledged, and beginning to take their first lessons in flying, the ap- A NATURALIST. 107 proach of a man, especially if armed with a gun, calls forth all their cunning and solicitude. The young are immediately placed in the securest place at hand, where the foliage is thickest, and remain perfectly motionless and quiet. Not so the alarmed parents, both of which fly nearer and nearer to the hunter, uttering the most discordant screams, with an occasional peculiar note, which seems intended to direct or warn their young. So close do they approach, and so clamorous are they as the hunter endeavours to get a good view of them on the tree, that he is almost uniformly persuaded the young crows are also concealed there; but he does not perceive, as he is cautiously trying to get within gun shot, that they are moving from tree to tree, and at each remove are farther and farther from the place where the young are hid. After continuing this trick, until it is impossible that the hunter can retain any idea of the situation of the young ones, the parents cease their distressing outcries, fly quietly to the most convenient lofty tree, and calmly watch the movements of their disturber. Now and then they utter a loud quick cry, which seems intended to bid their offspring lie close and keep quiet, and it is very generally the case that they escape all danger by their obedience. An experienced crow-killer watches eagerly for the tree where the crows first start from ; and if this can be observed, he pays no attention to their clamours, nor pretence of throwing themselves in his way, as he is satisfied they are too vigilant to let him get a shot at • 108 RAMBLES OF them; and if he can see the young, he is tolerably sure of them all, because of their inabihty to fly or change place readily. The time of the year in which the farmers suffer most from them is in the spring, before their enormous congre- gations disperse, and when they are rendered voracious by the scantiness of their winter fare. Woe betide the corn field which is not closely watched, when the young grain begins to shoot above the soil! If not well guarded, a host of these marauders will settle upon it at the first light of the dawn, and before the sun has risen far above the horizon, will have plundered every shoot of the germi- nating seed, by first drawing it skilfully from the moist earth by the young stalk, and then swallowing the grain. The negligent or careless planter, who does not visit his field before breakfast, finds, on his arrival, that he must either replant his corn, or relinquish hopes of a crop; and without the exertion of due vigilance, he may be obliged to repeat this process twice or thrice the same season. Where the crows go to rob a field in this way, they place one or more sentinels, according to circum- stances, in convenient places, and these are exceedingly vigilant, uttering a single warning call, which puts the whole to flight the instant there is the least appearance of danger or interruption. Having fixed their sentinels, they begin regularly at one part of the field, and pursu- ing the rows along, pulling up each shoot in succession, and biting off the corn at the root. The green shoots • A NATURALIST. 109 thus left along the rows, as if they had been arranged with care, offer a melancholy memorial of the work which has been effected by these cunning and destruc- tive plunderers. Numerous experiments have been made, where the crows are thus injurious, to avert their ravages; and the method I shall now relate I have seen tried with the most gratifying success. In a large tub a portion of tar and grease were mixed, so as to render the tar sufficiently thin and soft, and to this was added a portion of slacked lime in powder, and the whole stirred until thoroughly incorporated. The seed corn was then thrown in, and stirred with the mixture until each grain received a uni- form coating. The corn was then dropped in the hills, and covered as usual. This treatment was found to re- tard the germination about three days, as the mixture greatly excludes moisture from the grain. But the crows did no injury to the field; they pulled up a small quantity in different parts of the planting, to satisfy themselves it was all alike; upon becoming convinced of which, they quietly left it for some less carefully managed grounds, where pains had not been taken to make all the corn so nauseous and bitter. 10 110 RAMBLES OF NO. XI. It rarely happens that any of the works of nature are wholly productive of evil, and even the crows, trouble- some as they are, contribute in a small degree to the good of the district they frequent. Thus, though they destroy eggs and young poultry, plunder the cornfields, and carry off whatever may serve for food, they also rid the surface of the earth of a considerable quantity of carrion, and a vast multitude of insects and their destruc- tive larvae. The crows are very usefully employed when they alight upon newly ploughed fields, and pick up great numbers of those large and long-lived worms, which are so destructive to the roots of all growing vege- tables ; and they are scarcely less so, when they follow the seine haulers along the shores, and pick up the small fishes, which would otherwise be left to putrify and load the air with unpleasant vapours. Nevertheless, they be- come far more numerous in some parts of the country than is at all necessary to the good of the inhabitants, and whoever would devise a method of lessening their numbers suddenly, would certainly be doing a service to the community. A NATURALIST. Ill About a quarter of a mile above the house I lived in on Curtis's creek, the shore was a sand bank or bluff, twenty or thirty feet high, crowned with a dense young pine forest to its very edge. Almost directly opposite, the shore was flat, and formed a point extending in the form of a broad sand bar, for a considerable distance into the water, and when the tide was low, this flat af- forded a fine level space, to which nothing could approach in either direction, without being easily seen. At a short distance from the water, a young swamp wood of maple, gum, oaks, &c. extended back, towards some higher ground. As the sun descended, and threw his last rays in one broad sheet of golden effulgence over the crystal mirror of the waters, innumerable compa- nies of crows arrived daily, and settled on this point, for the purpose of drinking, picking up gravel, and uniting in one body prior to retiring for the night to their accus- tomed dormitory. The trees adjacent and all the shore would be literally blackened by those plumed marauders, while their increasing outcries, chattering and screams, were almost deafening. It certainly seems that they derive great pleasure from their social habits, and I of- ten amused myself by thinking the uninterrupted clatter which was kept up, as the different gangs united with the main body, was produced by the recital of the adven- tures they had encountered during their last marauding excursions. As the sun became entirely sunk below the horizon, the grand flock crossed to the sand bluff on the 112 RAMBLES OF opposite side, where they generally spent a few moments in picking up a further supply of gravel, and then, rising in dense and ample column, they sought their habitual roost in the deep entanglements of the distant pines. This daily visit to the point, so near to my dwelling, and so accessible by means of the skiff, led me to hope that I should have considerable success in destroying them. Full of such anticipations, I loaded two guns, and pro- ceeded in my boat to the expected place of action, pre- vious to the arrival of the crows. My view was to have my boat somewhere about half way between the two two shores, and as they never manifested much fear of boats, to take my chance of firing upon the main body as they were flying over my head to the opposite side of the river. Shortly after I had gained my station, the companies began to arrive, and every thing went on as usual. But whether they suspected some mischief from seeing a boat so long stationary in their vicinity, or could see and distinguish the guns in the boat, I am unable to say; the fact was, however, that when they set out to fly over, they passed at an elevation which secured them from my artillery effectually, although, on ordinary oc- casions, they were in the habit of flying over me at a height of not more than twenty or thirty feet. I return- ed home without having had a shot, but resolved to try if I could not succeed better the next day. The same result followed the experiment, and when I fired at one gang, which it appeared possible to attain, the instant A NATURALIST. 113 the gun was discharged, the crows made a sort of halt, descended considerably, flying in circles, and screaming most vociferously, as if in contempt or derision. Had I been prepared for this, a few of them might have suffer- ed for their bravado. But my second gun was in the bow of the boat, and before I could get it, the black gentry had risen to their former security. While we were sitting at tea that evening, a black came to inform me that a considerable flock of crows, which had arrived too late to join the great flock, had pitched in the young pines not a great way from the house, and at a short distance from the road-side. We quickly had the guns in readiness, and I scarcely could restrain my impa- tience until it should be late enough and dark enough to give us a chance of success. Without thinking of any thing but the great number of the crows, and their in- ability to fly to advantage in the night, my notions of the numbers we should bring home were extravagant enough, and I only regretted that we might be obliged to leave some behind. At length, led by the black boy, we sallied forth, and soon arrived in the vicinity of this temporary and unusual roost; and now the true charac- ter of the enterprise began to appear. We were to leave the road, and penetrate several hundred yards among the pines, whose proximity to each other, and the diffi- culty of moving between which, on account of the dead branches, has been heretofore stated. Next, we had to be careful not to alarm the crows before we were ready 10* 114 RAMBLES OF to act, and at the same time were to advance with cocked guns in our hands. The only way of moving forwards at all, I found to be that of turning my shoulders as much as possible to the dead branches, and breaking my way as gently as I could. At last we reached the trees upon which the crows were roosting; but as the foliage of the young pines was extremely dense, and the birds were full forty feet above the ground, it was out of the question to distinguish where the greatest number were situated. Selecting the trees which appeared by the greater darkness of their summits to be most heavily laden with our game, my companion and I pulled our triggers at the same moment. The report was followed by considerable outcries from the crows, by a heavy shower of pine twigs and leaves upon which the shot had taken effect, and a deafening roar caused by the sud- den rising on the wing of the alarmed sleepers. One crow at length fell near me, which was wounded too badly to fly or retain his perch, and as the flock had gone entirely off, with this one crow did I return, rather crestfallen from my grand nocturnal expedition. This crow, however, afforded me instructive employment and amusement during the next day, in the dissection of its nerves and organs of sense, and I know not that I ever derived more pleasure from any anatomical examination, than I did from the dissection of its internal ear. The extent and convolutions of its semicircular canals, show how highly the sense of hearing is perfected in these A NATURALIST. 1 15 creatures, and those who wish to be convinced of the truth of what we have stated in relation to them, may still see this identical crow skull, in the Baltimore Mu- seum, to which I presented it after finishing the dissec- tion. At least, I saw it there a year or two since, though I little thought, when employed in examining, or even when I last saw it, that it would ever be the subject of such a reference " in a printed book." Not easily disheartened by preceding failures, I next resolved to try to outwit the crows, and for this purpose prepared a long line, to which a very considerable num- ber of lateral lines were tied, having each a very small fishing hook at the end. Each of these hooks was bait- ed with a single grain of corn, so cunningly put on, that it seemed impossible that the grain could be taken up without the hook being swallowed with it. About four o'clock, in order to be in full time, I rowed up to the sandy point, made fast my main line to a bush, and extending it toward the water, pegged it down at the other end securely in the sand. I next arranged all my baited lines, and then covering them all nicely with sand, left nothing exposed but the bait. This done, I scattered a quantity of corn all around, to render the baits as little liable to suspicion as possible. After taking a final view of the arrangement, which seemed a very hopeful one, I pulled my boat gently homeward, to wait the event of my solicitude for the capture of the crows. As usual, they arrived in thousands, blackened the sand 116 RAMBLES OF beach, chattered, screamed, and fluttered about in great glee, and finally sailed over the creek and away to their roost, without having left a solitary unfortunate to pay for having meddled with my baited hooks. I jumped into the skiff, and soon paid a visit to my unsuccessful snare. The corn was all gone ; the very hooks were all bare, and it was evident that some other expedient must be adopted before I could hope to succeed. Had I caught but one or two alive, it was my intention to have em- ployed them to procure the destruction of others, in a manner I shall hereafter describe. A NATURALIST. 117 NO. XII. Had I succeeded in obtaining some living crows, they were to be employed in the following manner. After having made a sort of concealment of brushwood within good gunshot distance, the crows were to be fastened by their wings on their backs, between two pegs, yet not so closely as to prevent them from fluttering or strug- gling. The other crows, who are always very inquisi- tive where their species is in any trouble, were expected to settle down near the captives, and the latter would certainly seize the first that came near enough with their claws, and hold on pertinaciously. This would have produced fighting and screaming in abundance, and the whole flock might gradually be so drawn into the fray, as to allow many opportunities of discharging the guns upon them with full effect This I have often ob- served, that when a quarrel or fight took place in a large flock or gang of crows, a circumstance by no means infrequent, it seemed soon to extend to the whole, and, during the continuance of their anger, all the usual caution of their nature appeared to be forgotten, allowing themselves at such times to be approached closely and re- 118 RAMBLES OF gardless of men, fire-arms, or the fall of their compa- nions, continuing their wrangling with rancorous obsti- nacy. A similar disposition may be produced among them by catching a large owl, and tying it with a cord of moderate length to the limb of a naked tree in a neighbourhood frequented by the crows. The owl is one of the few enemies which the crow has much reason to dread, as it robs the nests of their young, whenever they are left for the shortest time. Hence, whenever crows discover an owl in the day time, like many other birds, they commence an attack upon it, screaming most voci- ferously, and bringing together all of their species with- in hearing. Once this clamour has fairly begun, and their passions are fully aroused, there is little danger of their being scared away, and the chance of destroying them by shooting is continued as long as the owl remains un- injured. But one such opportunity presented during my residence where crows were abundant, and this was un- fortunately spoiled by the eagerness of one of the gun- ners, who, in his anxiety to demolish one of the crows, fixed upon some that were most busy with the owl, and killed it instead of its disturbers, which at once ended the sport. When the crows leave the roost, at early dawn, they generally fly to a naked or leafless tree in the nearest field, and there plume themselves and chatter until the daylight is sufficiently clear to show all objects with distinctness. Of this circumstance I have taken advantage several^ times to get good shots at them in A NATURALIST. lig this way. During the day time, having selected a spot within proper distance of the tree frequented by them in the morning, I have built with brushwood and pine bushes a thick, close screen, behind which one or two persons might move securely without being observed. Proper openings, through which to level the guns, were also made, as the slightest stir or noise could not be made at the time of action, without a risk of rendering all the preparations fruitless. The guns were all in or- der and loaded before going to bed, and at an hour or two before daylight, we repaired quietly to the field and stationed ourselves behind the screen, where, having mounted our guns at the loop-holes to be in perfect rea- diness, we waited patiently for the daybreak. Soon after the gray twilight of the dawn began to displace the darkness, the voice of one of our expected visitants would be heard from the distant forest, and shortly after a single crow would slowly sail towards the solitary tree and settle on its very summit. Presently a few more would arrive singly, and in a little while small flocks followed. Conversation among them is at first rather limited to occasional salutations, but as the flock begins to grow numerous, it becomes general and very animat- ed, and by this time all that may be expected on this oc- casion have arrived. This may be known also, by ob- serving one or more of them descend to the ground, and if the gunners do not now make the best of the oc- casion, it will soon be lost, as the whole gang will pre- 120 RAMBLES OF sently sail off, scattering as they go. However, we rare- ly waited till there was a danger of their departure, but as soon as the flock had fairly arrived and were still crowded upon the upper parts of the tree, we pulled triggers together, aiming at the thickest of the throng. In this way, by killing and wounding them, with two or three guns, a dozen or more would be destroyed. It was of course needless to expect to find a similar oppor- tunity in the same place for a long time afterwards, as those which escaped had too good memories to return to so disastrous a spot. By ascertaining other situations at considerable distances, we could every now and then obtain similar advantages over them. About the years 1800, 1, 2, 3, 4, the crows were so vastly accumulated and destructive in the state of Mary- land, that the government, to hasten their diminution, received their heads in payment of taxes, at the price of three cents each. The store-keepers bought them of the boys and shooters, who had no taxes to pay, at a rather lower rate, or exchanged powder and shot for them. This measure caused a great havoc to be kept up among them, and in a few years so much diminished the grievance, that the price was withdrawn. Two modes of shooting them in considerable numbers were followed and with great success; the one, that of killing them while on the wing towards the roost, and the other attacking them in the night when they had been for some hours asleep. I have already mentioned the regularity with A NATURALIST. 121 which vast flocks move from various quarters of the country to their roosting places every afternoon, and the uniformity of the route they pursue. In cold weather, when all the small bodies of water are frozen, and they are obliged to protract their flight towards the bays or sea, their return is a work of considerable labour, espe- cially should a strong wind blow against them ; at this season also, being rather poorly fed, they are of necessity less vigorous. Should the wind be adverse, they fly as near the earth as possible, and of this the shooters at the time I allude to took advantage. A large number would collect on such an afternoon, and station themselves close along the foot-way of a high bank, over which the crows were in the habit of flying ; and as they were in a great degree screened from sight as the flock flew over, keep- ing as low as possible because of the wind, their shots were generally very effectual. The stronger was the wind, the greater was their success. The crows that were not injured found it very difficult to rise; and those that diverged laterally, only came nearer to gunners sta- tioned in expectation of such movements. The "flocks were several hours in passing over, and as there was generally a considerable interval between each company of considerable size, the last arrived, unsuspicious of what had been going on, and the shooters had time to recharge their arms. But the grand harvest of crow heads was derived from the invasion of their dormitories, which are well worthy a particular description, and should be visited 11 122 RAMBLES OF by every one who wishes to form a proper idea of the number of these birds, that may be accumulated in a single district. The roost is most commonly the densest pine thicket that can be found, generally at no great distance from some river, bay, or other sheet of water, which is the last to freeze, or rarely is altogether frozen. To such a roost, the crows, which are, during the day-time, scattered over perhaps more than a hundred miles of cir- cumference, wing their way every afternoon, and arrive shortly after sunset. Endless columns pour in from various quarters, and as they arrive pitch upon their ac- customed perches, crowding closely together for the benefit of the warmth and the shelter afforded by the thick foliage of the pine. The trees are literally bent by their weight, and the ground is covered for many feet in depth by their dung, which by its gradual fermentation, must also tend to increase the warmth of the roost. Such roosts are known to be thus occupied for years, beyond the memory of individuals; and I know of one or two, which the oldest residents in the quarter state to have been known to their grandfathers, and probably had been resorted to by the crows during several ages pre- vious. There is one of great age and magnificent extent, in the vicinity of Rock Creek, an arm of the Patapsco. They are sufficiently numerous on the rivers opening into the Chesapeake, and are every where similar in their general aspect. Wilson has signalised such a roost at no great distance from Bristol, Pa. and I know by observa- A NATURALIST. 123 tion, that not less than a million of crows sleep there nightly during the winter season. To gather crow heads from the roost, a very large party was made up, proportioned to the extent of surface occupied by the dormitory. Armed with double barrelled and duck guns, which threw a large charge of shot, the company was divided into small parties, and these took stations, selected during the day time, so as to surround the roost as nearly as possible. A dark night was always preferred, as the crows could not when alarmed fly far, and the attack was delayed until full midnight. All being at their posts, the firing was commenced by those who were most advantageously posted, and followed up successively by the others, as the affrighted crows sought refuge in their vicinity. On every side the carnage then raged fiercely, and there can scarcely be conceived a more forcible idea of the horrors of a battle, than such a scene afforded. The crows screaming with fright and the pain of wounds, the loud deep roar produced by the raising of their whole number in the air, the incessant flasliing and thundering of the guns, and the shouts of their eager destroyers, all produced an effect which can never be forgotten by any one who has witnessed it, nor can it well be adequately comprehended by those who have not. Blinded by the blaze of the powder, and be- wildered by the thicker darkness that ensues, the crows rise and settle again at a short distance, without being able to withdraw from the field of danger ; and the san- 124 RAMBLES OF guinary work is continued until the shooters are fatigued, or the approach of daylight gives the survivors a chance of escape. Then the work of collecting the heads from the dead and wounded began, and this was a task of con- siderable difficulty, as the wounded used their utmost efforts to conceal and defend themselves. The bill and half the front of the skull were cut off together, and strung in sums for the tax-gatherer, and the product of the night divided according to the nature of the party formed. Sometimes the great mass of shooters were hired for the night, and received no shares of scalps, having their am- munition provided by the employers; other parties were formed of friends and neighbours, who clubbed for the ammunition, and shared equally in the result. During hard winters the crows suffer severely, and perish in considerable numbers from hunger, though they endure a wonderful degree of abstinence without much injury. When starved severely, the poor wretches will swallow bits of leather, rope, rags, in short any thing that appears to promise the slightest relief. Multitudes belonging to the Bristol roost, perished dur- ing the winter of 1828-9 from this cause. All the water courses were solidly frozen, and it was distressing to observe these starvelings every morning winging their weary way towards the shores of the sea in hopes of food, and again to see them toiling homewards in the afternoon, apparently scarce able to fly. In speaking of destroying crows, we have never ad- A NATURALIST. 125 verted to the use of poison, which in their case is wholly inadmissible on this account Where crows are common hogs generally run at large, and to poison the crows would equally poison them; the crows would die, and fall to the ground, where they would certainly be eaten by the hogs. Crows, when caught young, learn to talk plainly, if pains be taken to repeat certain phrases to them, and they become exceedingly impudent and troublesome. Like all of their tribe, they will steal and hide silver or other bright objects, of which they can make no possible use. 11* REMINISCENCES OF A VOYAGE TO INDIA. REYNELL COATES, M. D REMINISCENCES. NO. I. The American public need not be reminded of the folly of those tourists, who, after a week's residence in a capi- tal city, take passage in a line of coaches, and hastily circumambulating a small portion of a great continent, return to launch out into profound disquisitions on na- tional character and the mutabihty of governments. I am not of this school; but as no one can travel round two thirds of the circumference of our globe, either by land or sea, without acquiring many facts, and making many observations highly interesting to those who quietly enjoy the sweets of social intercourse around the paternal hearth, I hope that these detached reminiscences, while they contribute to ray own happiness by recalling scenes of grandeur and of beauty which I can never hope to revisit, may also prove a harmless recreation. 130 REMINISCENCES OF MINUTE ANIMALS OF THE OCEAN. The innumerable tribes of insects which swarm in every part of the world, delighting us by the brilliancy of their colouring, or tormenting us with their attacks upon our persons or our property, although their armies sometimes render whole countries uninhabitable, destroy- ing every blade of grass in their career; even these seem- ingly interminable hosts must y ield the palm in number, beauty, every thing except destructiveness, to the sky- tinted denizens of the ocean. Every leaf of sea-weed, every fragment of floating timber, teems with life in some of its most interesting forms, and the blue expanse of waves is every where studded with animated gems, which sail along its surface or lie hidden in its bosom- The seaman, as the vessel hurries along, catches occa- sional glimpses of misty specks floating beneath him, which, to his careless eye, appear like the spawn of fishes, or the slime washed from their bodies, yet in these un- promising and neglected atoms, closer examination dis- covers beings whose delicacy of structure defies the pencil, and whose tints are rivalled only by those of a summer's evening. It is much to be regretted that many minds capable of enjoying, in the highest degree, those pleasures which may be drawn from every department of natural history, are arrested on the threshold of the study by the dry and technical systems,which are but the common-place books A VOYAGE TO INDIA. 131 of the science, but which are too generally regarded as the science itself. Some knowledge of these systems seems indispensable to the grand and general views which constitute the chief interest of many departments of na- ture ; but the minute inhabitants of the ocean possess a charm for every eye, an interest peculiarly their own. In observing their beauties and their manners, the tra- veller would find delightful occupation, and the tedium of the sea Would be forgotten. Much of my time was employed in catching these minute animals with a net of bunting secured to a cane twelve feet in length, with which practice soon rendered me so adroit, that little escaped me that floated within three feet of the surface. I cannot hope, by mere de- scription, to inspire others with the same enthusiastic admiration which I felt in a personal examination of the wonders of my net; but I trust that, in introducing some of these new acquaintances to your readers, I shall not be accused of making a burdensome addition to their circle. The vast tract of waters constituting the Gulf stream, stretching itself along the coast of North America, lies like a huge ocean desert, shunned even by the fish, which are seen but rarely within its limits ; but on the farther side a counter current travels at a slower pace in the opposite direction. The surface of this current is thickly covered with masses of sea-weed and other float- ing bodies, swept by the stream from the shores of the 132 REMINISCENCES OF Gulf of Mexico and the southern states, and collected in the eddies. Each little tuft, if carefully taken, and placed in a tumbler or basin of salt water, will display a number of beautiful shrimps, spotted, chequered, or striped with every shade of colouring; a variety of minute crabs, little shells, and not unfrequently fish, in comparison with which the minnoes of our creeks arc leviathans. Most of these various tribes which have been carried by the cur- rent from their native shores, would speedily perish in the unfathomable depths of their own element, if deprived for a long time of the support afforded by their little vessel. One would suppose that a voyage of three thousand miles, performed in company, and within the narrow confines of a tuft of leaves, would be sufficient to es- tablish a good understanding in the little community; but, alas! the natural propensities to violence and plunder, which not even the lofty attribute of human reason can control, here rage with unrestrained violence; no sooner is this mimic world confined within the precincts of the tumbler or the basin, than the whole vessel displays a system of inveterate warfare. In vain do the smaller shrimps dart through the labyrinth of leaves to elude the pursuit of the crabs; they are speedily torn in pieces, or driven from their shelter to become the prey of some vo- racious fish, which, flying before the persecution of its larger brethren, thus repays the hospitality of those in whose dominions it seeks obscurity and safety. But this A VOYAGE TO INDIA. 133 ingratitude seldom passes unpunished. Pent within nar- row bounds, and unable to elude pursuit by shooting be- yond the grasp of its insulted protectors, a desperate con- flict ensues between the fish and the crabs, and in a few hours nothing of the animated scene survives, except some two or three mutilated combatants, who, no longer possessed of their dangerous weapons of offence, or ex- hausted with wounds, are fain to make a peaceable meal upon the carcasses of their former associates. What moral might the observer extract from the high daring and noble prowess of these little aquatics, none of which ever acquire the paltry magnitude of three quarters of an inch! What exquisite similes might be drawn from such a fertile source to embellish the pages of history, or to be sounded upon the harp of flattery, to swell the festive raptures of the hero! Nothing is more striking to the naturalist than the contrast between the grandeur and the immensity of power displayed by the angry waves around him, and the delicate and fragile forms which crowd their surface. The crest of a billow, which causes the tough fir-ribbed vessel to tremble beneath it like a child under the rod of its tutor, passes harmlessly over myriads of beings, which, when removed from their native element, dissolve under the fervour of the sun, or break in pieces by their own weight. Yet, unobtrusive as are these lower links in the scale of nature, escaping by their very humility that destruction which so often overwhelms the proud lord of 12 134 REMINISCENCES OF the creation in spite of all his science and his strength they are often individually dressed in beauty before which the lily would fade, and the rose hide its blushes; and, collectively, they produce some of the most sublime phe- nomena, which have even astonished the philosopher, building up islands in the midst of the deep, or, in mimic sportiveness, alarming the mariner with the appearance of unreal shoals, and wakening the lightning of the wa- ters to increase the brilliancy of moonlight, or to render more terrific the gloom of the midnight tempest. This picture may appear too glowing to many, but in my next I will endeavour to establish its correctness. C A VOYAGE TO INDIA. 135 NO. II. MOLLUSCiE. FALSE SHOALS. Those who have sought relief from the summer heats at Long Branch or Cape May, have probably noticed, in their ramblings along the beach, certain gelatinous transparent masses deposited by the receding tide upon the sands. They resemble very large plano-convex lenses, and are devoid of colour, except in a few minute points, which appear like grains of yellow sand, or the eggs of some shells embedded in their substance. This has led many to consider them as the spawn of some marine animal. If one of these gellies be placed in a tub of brine im- mediately after it reaches the shore, the observer will be surprised to find it possessed of animation. The supe- rior, or convex part, will expand like the top of an um- brella, and from its under surface several fringed and leaf-like membranes will be developed. The remains of numerous threads, or tendrils, will float out from the margin of the umbrella, following the motions of the animal as it swims around the tub. These threads are 136 REMINISCENCES OF often several feet in length before they are broken by the sand ; they are probably employed both to entice and secure the prey, and they produce a sharp, slinging sensation, when applied to the skin. It is from the ap- pearance and offensive power of these last organs, that seamen have given the animal the title of the sea nettle, and naturalists the generic name medusa. I have offered this rude description of the medusa, as a familiar example of the-elass of animated beings which are the subjects of the following remarks. They are all alike gelatinous and transparent, and many of them melt and flow away when exposed in the open air to the direct rayluf the sun. Of all the tribes of molluscae which are scattered over eve- ry part of the ocean, the most splendid and the best known is the Portuguese man-of-war (physalia). This is an oblong animated sack of air, elongated at one extremity into a conical neck, and surmounted by a membraneous expansion running nearly the whole length of the body, and rising above into a semicircular sail, which can be expanded or contracted to a considerable extont, at the pleasure of the animal. From beneath the body are suspended from ten to fifty or more little tubes, from half an inch to an inch in length, open at their lower extremity, and formed like the flower of the blue bottle. These have been regarded as temporary receptacles for food, like the first stomach of cattle ; but as the animal is destitute of any visible mouth or alimentary canal, A VOYAGE TO INDIA. 137 and as I have frequently seen fish in their cavities ap- parently half digested, I cannot but consider them as proper stomachs; nor indeed is it a greater paradox in zoology that an animal should possess many indepen- dent stomachs, than that the strange carniverous vege- table, the saracinea, should make use of its leaves appa- rently for a similar purpose. From the centre of this group of stomachs depends a little cord, never exceeding the fourth of an inch in thickness, and often forty times as long as the body. The size of the Portuguese man-of-war varies from half an inch to six inches in length. When it is in motion, the sail is accommodated to the force of the breeze, and the elongated neck is curved upward, giving to the animal a form strongly resembling the little glass swans which we sometimes see swimming in goblets. It is not the form, however, which constitutes the chief beauty of this little navigator. The lower part of the body and the neck are devoid of all colour, except a faint irridescence in reflected lights, and they are so perfectly transparent that the finest print is not ob- scured when viewed through them. The back becomes gradually tinged as we ascend, with the finest and most delicate blue that can be imagined; the base of the sail equals the purest sky in depth and beauty of tint; the summit is of the most splendid red, and the central part is shaded by the gradual intermixture of these colours through all the intermediate grades of purples. Drawn 12* 138 REMINISCENCES OF as it were upon a ground-work of mist, the tints have an aerial softness far beyond the reach of art, and war- ranting the seemingly imaginative description given at the close of the first number. The group of stomachs is less transparent, and al- though the hue is the same as that of the back, they are, on this account incomparably less elegant. By their weight and form they fill the double office of a keel and ballast, while the cord-like appendage, which floats out for yards behind, is called by seamen the cable. The mode in which the animal secures his prey has been a subject of much speculation, for the fish and crabs that, are frequently found within the little tubes, are often large enough to tear them in pieces could they retain their natural vigour during the contest. De- ceived by the extreme pain which is felt when the ca- ble is brought into contact with the back of the hand, naturalists have concluded, I think too hastily, that this organ secretes a poisonous or acrid fluid, by which it benumbs any unfortunate fish or other animal that ven- tures within its toils, allured by the hope of making a meal upon what, in its ignorance, it has mistaken for a worm. The secret will be better explained by a more careful examination of the organ itself. The chord is composed of a narrow layer of contractile fibres, scarcely visible when relaxed, on account of its transparency. If the animal be large, this layer of fibres will some- times extend itself to the length of four or five yards. A A VOYAGE TO INDIA. 139 spiral line of blue bead-like bodies, less than the head of a pin, revolves around the cable from end to end, and under the microscope these beads appear covered with minute prickles, so hard and sharp, that they will rea- dily enter the substance of wood, adhering with such" pertinacity that the cord can rarely be detached without breaking. It is to these prickles that the man-of-war owes its power of destroying animals much its superior in strength and activity. When any thing becomes im- paled upon the cord, the contractile fibres are called into action, and rapidly shrink from many feet in length to less than the same number of inches, bringing the prey within reach of the little tubes, by one of which it is immediately swallowed. This weapon, so insignificant in appearance, is yet sufficiently formidable even to man. I had once the misfortune to become entangled with the cable of a very large man-of-war while swimming in the open ocean, and amply did it avenge its fellows, who now sleep in my cabinet robbed at once of life and beauty. The pain which it inflicted was almost insupportable for some time, nor did it entirely cease for twenty-fbur hours. I might now proceed to describe many analogous ani- mals scarcely inferior in interest, but it is time to no- tice some individuals of another tribe, residing beneath the surface, and therefore less generally known. 140 REMINISCENCES OF The grandest of these is the beroe. In size and form it precisely resembles a purse, the mouth, or orifice, an- swering to one of the modern metallic clasps. It is perfectly transparent, and in order to distinguish its •filmy outlines, it is necessary to place it in a tumbler of brine held between the observer and the light. In cer- tain directions the whole body appears faintly irrides- cent, but there are several longitudinal narrow lines which reflect the full rich tints of the rainbow in the most vivid manner, for ever varying and mingling the hues, even while the animal remains at rest. Under the microscope these lines display a succession of innu- merable coloured scales or minute fins, which are kept unceasingly in motion, thus producing the play of co- lours by continually changing the angle of reflection. The movements of tho beroe are generally retrograde, and are not aided by the coloured scales, but depend upon the alternate contraction and dilatation of the mouth. The lips are never perfectly closed, and the little fish and shrimps which play around them are con- tinually entering and leaving them at pleasure. The animal is dependent for its food upon such semi-anima- ted substances as it draws within its grasp by moving slowly backwards in the water, and retains them in con- sequence of their own feebleness and inability to escape the weakest of snares. Another tribe of the sea-purses, (salpa,) though much smaller than the beroe, are more complex in structure, A VOYAGE TO INDIA. 141 and possess a higher interest in consequence of the sin- gular habits of some of the species. They are double sacks, resembling the beroe in general form, but desti- tute of irridescence. The outer sack, or mantle, rarely exceeds an inch in length, and is commonly about half as wide. The inner sack is much smaller, and the interval between these forms a cavity for the water which they breathe, and for some of the viscera. Their visible organs are a trans- parent heart, which can only be seen in the strongest light; a splendid double row of whitish bead-like cavities forming a spiral line near one extremity, and supposed to be either lungs or ovaries; numerous broad, flat, pearly muscles, barely distinguished by their mistiness, and an alimentary canal as fine as horse-hair, with a slight enlargement at one spot, which has been called a stomach. This enlargement resembles both in size and colour a grain of sand. From the base of the ani- mal arises two longer and four or five shorter conical spines of jelly, curved into hooks at the points, by means of which numerous individuals attach themselves to- gether in double rows like the leaflets of a pinnated leaf. Cords of this kind, composed of forty or fifty animals, were often taken, but they separate and reattach them- selves at pleasure. To the gregarious habits of this little mollusque we owe a very singular and' striking phenomena, which I have never seen noticed by naturalists, although 142 REMINISCENCES OF we frequently witnessed it near the Cape of Good Hope. The animals are occasionally found associated to- gether in such countless myriads that the sea is literally filled with them, sometimes over three or four square miles of surface, and to the depth of several fathoms. The yellow spots which have been described, being the only coloured portions of their body, give to the whole tract the appearance of a shoal or sand bank at some distance below the surface. The deception is height- ened by the greater smoothness of the water at these places, particularly in calm weather, for so closely are the animals crowded together, that the water is rendered in a manner less fluid ; the smaller billows break around the margin and are lost, while the heavy waves of the southern ocean are somewhat opposed in their progress, and take on in a slight degree the usual appearance of the ground swell. There can be but little doubt that many of the numerous shoals laid down in the charts of this region, but which have never been seen by any but the supposed discoverers, have been immense banks of these gregarious molluscae. In sailing through a tract of this description, in which the progress of the ship was very sensibly retarded, I have dipt up with the ship's bucket a greater bulk of the animals than of the water in which they were suspended. How wonderful are the effects produced by the minute links of creation ! C. A VOYAGE TO INDIA. 143 C. wishes those of his friends who have devoted them- selves to the study of natural history, to understand dis- tinctly that the anatomical and chemical terms con- tained in these essays, are employed, not in their scientific but in their popular sense, and also that in drawing the organs of the salpa he has followed La- marck and Cuvier, without committing himself by any opinions upon the correctness of their generic descrip- tions, as applicable to this particular species. 144 REMINISCENCES OF NO. III. PHOSPHORESCENCE OF THE OCEAN. As the glow-worm and the fire-fly enliven the night by land, so do many of the molluscae and other marine animals kindle their mimic fires by sea—but on a far grander and more imposing scale. If, during a dark night, we watch attentively the ad- vance and retreat of the breakers on the beach, we shall generally perceive the crest of each billow to be illumi- nated by a faint flash at the moment of its fall; and after the wave subsides, the beach will be spangled with mi- nute but brilliant specs, which shine for a few moments and then disappear. These lights will convey an idea of what is meant by the phosphorescence of thejocean. At all limes, and in nearly all situations, the spray thrown up by the bow of the vessel is thickly strewed during the night with little silvery stars, that dance and whirl about among the eddies, until they are lost in the distance. These luminous particles are generally so small that they are caught with difficulty, and so perfectly transparent, that they can scarcely be distin- A VOYAGE TO INDIA. 145 guished from the drops of brine adhering to the net. Their own radiance, by which they are visible in their native element, is soon lost when brought into the air, for it ceases instantly on the death of the animal. The few specimens which I have examined were either gela- tinous molluscas or microscopic shrimps; the former being luminous throughout their entire substance, and the latter, like the glow-worm, emitting an intermittent light from a lantern near the tail. Such were the appearances noticed in most parts of the North Atlantic Ocean, excepting the Gulf stream. The fretful waves of this region, vexed as it is by per- petual squalls, appear to be wrapped in total darkness. But in the tropical regions, and throughout the vast ex- panse of the Southern and Indian Oceans, the grandeur and sublimity of the night scene were often beyond description. The vivid hues of " the double headed shot clouds," which rise like immense mountains from the water of the western horizon, seemed to fade into twilight only to give place to a still more beautiful illu- mination in the bosom of the waves. The bow of the vessel scattered far around a blaze of light, which shone brilliantly under the brightest moon, and was often suffi- ciently intense to enable us to read upon the deck. Leaning over the stern, our track resembled a vast trough of fire, studded with innumerable floating lanterns and stars, such as fall from an exploding sky-rocket. In the eddies, the whirling of these bodies produced long 13 146 REMINISCENCES OF streams of light like serpents drawn in flame, and oc- casionally immense globes of fire would roll along be- neath the keel, at the depth of several fathoms, yet so intensely bright that the little rudder fish were distinctly visible sporting beneath the cabin windows. These globes are generally as large as a flour barrel, and ac- cording to Peron and Lesueur, they are sometimes seen to reach the enormous diameter of twenty feet. I had once the gratification to observe one of these animals within a foot of the surface. It was a medusa, large enough to fill a bushel basket, visible in every fibre by its own illumination." At these times the crest of every wave resembles a long line of ignited phosphorus, and every dip of the oar, or plunge of the bucket, produces a flash of light, and scatters scintillations on every side. Even the larger fish, when they approach the vessel, are followed by a luminous path like the tail of a comet, and they are often struck with the harpoon, guided by this ap- pearance alone. The sea at times resembles a field of snow or milk, and Peron asserts that it is often tinged with prismatic colours, vary ing at every moment; but these phenomena were not witnessed in our voyage. The strangest of all the modes in which the phospho- rescence of the ocean is exhibited, was witnessed near the island of Tristan D'Acunha, under circumstances too impressive to be forgotten. A VOYAGE TO INDIA. 147 The night was dark and damp, and the breeze too light to steady the vessel. She rolled heavily over the waves, making it difficult for a landsman to walk the deck. A fog bank, which hung around the northern horizon at sunset, now swept slowly down towards us. The captain ordered the light sails furled in expectation of a squall, and we stood leaning together over the rail, watching the mist, which approached more and more rapidly, till it resembled, in the increasing darkness, an immense wall extending from the water to the clouds, and seemed threatening to crush us beneath it. Just at this moment, a flash, like a bfoad sheet of lightning, spread itself over the surface of the* ocean asjfar as the eye could reach—five or six times, at intervals of a few seconds, the flash was repeated, and then the vessel was enveloped in the fog. The breeze quickened—the bustle of preparation attracted the attention of every one, and in a few moments we were hounding along at the rate of ten miles an hour, over waves sparkling in the clear moonshine, but the " lightning of the waters" had ceased. I have always regretted that I did not ascer- tain by what animal this most singular phenomenon was produced, but the wild ■ interest of the scene ban- ished every thought of the kind. In the course of the night we passed through several beds of the salpa, and it is very probable that the flashes were produced by these little creatures, induced, by a wonderful instinct, to act in concert for some inscrutable purpose. 148 REMINISCENCES OF There are few phenomena in nature which have led to a greater diversity of opinion among modern men of science, than the luminous appearance of the ocean dur- ring the night Some have regarded it as the effect of electricity, produced by the friction of the waves ; others as the product of a species of fermentation in the water, occurring accidentally in certain places. Many have attributed it to the well known phosphorescence of pu- trid fish, or to the decomposition of their slimo and exuvia, and a few only to the real cause—the voluntary illumination of many distinct species of marine animals, generally analogous to the tribes which were described in the former number of these Reminiscences. Even those authors who have acknowledged the agency of animal life in producing this wonderful appearance, have been in a manner compelled, by its universality, and by the almost incredible multiplication of beings which it infers, to admit the probable co-operation of other causes. My own observation has led to the conclusion, that the phosphoresence of the ocean is due solely to the pe- culiar instinct of the molluscae, and some genera of the crustacean The electrical hypothesis is certainly fallacious, for were we even to grant the possibility of producing an electric light in an agitated fluid, which is itself an im- perfect conductor, similar to that occasioned by the at- trition of white sugar or glass in the dark, the acknow- A VOYAGE TO INDIA. 149 ledged physical law, that like causes produce like effects, would lead us to expect an uniform diffusion of the phosphoresence over a considerable extent of water under the same latitude and longitude; but this is not the case. A ship will often be enveloped for a few mo- ments in so bright an illumination that a book may be read upon the deck, and at the next instant she may be involved in almost total darkness. Again, electricity is eliminated with the greatest facility in a cold and dry atmosphere; but the phosphorescence of the ocean is most considerable in tropical climates, nor is it dimin- ished by storms or rain. The supposition of a fermen- tation of the surface is equally unsatisfactory, for such a process would lead to an equable diffusion of light over the whole space in which it acted. But the luminous matter is almost always seen in distinct masses or par- ticles ; and the few exceptions to this rule which have bean observed, do not admit of an explanation according to the known effects of fermentation. The light elimi- nated by putrid fish furnishes a more plausible theory, but the very wide extent of the illumination, is, of itself; sufficient to prove its incorrectness. It has been already shown to what an incalculable amount the living inha- bitants of the ocean increase, but the reverse is true of the dead. The air and the water swarm with innume- rable depurators, who devour every thing that dies, whether beneath the surface or upon it. The albatross, the stormy petrel, the Cape pigeon, some of the gulls, 150 REMINISCENCES OF and other marine fowls, which are constantly soaring by thousands over every sea, seize upon all unprotected animals, dead or living, which remain within their reach. The three former birds will follow the ship for days during calm weather, to share the offals thrown over by the cook ; and so ravenous is their appetite, that they are frequently caught with the hook and line baited with meat, and trolled in the wake of the vessel. I have frequently seen them bathing their feathers in the grease which floats around the refuse of the camboose, and skimming it up with their spoon-shaped bills with every demonstration of pleasure. Those bodies that sink by their gravity fall a prey to the fish, and those that are too minute to attract the attention of the larger animals, are speedily devoured by the molluscae. Thus the waters are preserved in a high degree of pu- rity, and probably there does not remain sufficient pu- trescent matter in a cubic league of water to render luminous a cubic yard. In passing over an extent of ocean greater than the whole circumference of the earth, I did not see a single dead animal of any kind. The purpose for which this phosphorescence is de- signed, is lost in conjecture; but when we recollect that fish are attracted to the net by the lights of the fisher- men, and that many of the marine shells are said to leave their native element to crawl around a fire built upon the beach, are we not warranted in supposing that the ani- mals of which we have been speaking, are provided A VOYAGE TO INDIA. 151 with their luminous properties, in order to entice their prey within their grasp ? In quitting the subject of the minute animals of the ocean, I should not neglect to refer the curious to three engravings in the volume of plates to the Voyage aux Terres Australes, by Peron and L.esueur, where may be seen the happiest efforts of the pencil in delineating some of these interesting beings. The work is con- tained in the Philadelphia library, and will amply repay the trouble of a visit. C. ■S3 \ "JklK/ i"VXlX/ iNoiajw jo Aavaau ivnoiivn inoiqiw jo iivign tvnoiiv 1 i NATIONAL LIBRARY OF MEDICINE NATIONAL LIBRARY OF MEDICIN or JNI3I03W JO ABVaail TVNOIIVN 3NI3I03W JO AaVallT TVNOIlVh NATIONAl IIBRARY OF MEDICINE NATIONAL LIBRARY OF MEDICINE 3NI3I03W JO HVIII1 TVNOIIVN 3NI3I03W JO UVIill TVNOIIVN NATIONAL LIBRARY OF MEDICINE NATIONAL IIBRARY OF MEDICINE 3NI3I03W JO A.V.BIT TVNOIIVN JNI3I01W JO A . 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