Burt Green Wilder

“ Even the Nephila plumipes, which, it has been intimated, is "Christian in its disposition, and well-behaved beyond most of its kind," will readily bite, if it is held in the fingers and anything is put to its jaws. But that is nothing. So would you, most gentle reader, if a great giant pinched you between his thumb and finger, and held your hands and feet and head; and if, too, like our spider, you could not see enough to distinguish friends from foes. Spiders, then, will bite. ”

“ Occasionally one died from no apparent cause. The mortality increasing toward the end of the month, and all of them losing both flesh and vigor, I was persuaded to try them with water,—a thing I had thus far declined to do, never having heard of a spider's drinking water, and knowing that our common house species can hardly get it at all. The result was most gratifying: a drop of water upon the tip of a camel's-hair pencil, not only was not avoided, but greedily seized and slowly swallowed, being held between the jaws and the palpi. ”

“ Here, then, is a life-size picture of our spider and of—I was about to say, his partner; but in truth it is she who is the spider, and he is only her partner. Such is the real physical, and, so to speak, mental superiority of the female, that, even if we insist upon the legal equality at least of the masculine element, we can do so only in name, and will find it hard to avoid speaking of him as the male of the Nephila plumipes, thus tacitly admitting her as the truer representative of the species. ”

“ That reminds me of another class which may possibly be represented among my readers, and whose members, in the contemplation of the domestic economy of these insects, will, I fear, discover many and weighty arguments in favor of the various opinions entertained by the advocates of Woman's Rights; for here is a community in which the females not only far exceed the males in number, but present so great a contrast to them in size and importance, that, but for absolute proof, they never would be regarded as belonging to the same species. ”

“ Web of Nephila plumipes.
Here she will remain quiet for hours as if asleep; but no sooner does a fly or other insect strike the web, than she darts in the direction whence the vibrations proceed, and usually seizes her prey; but, strangely enough, if the insect have ceased its struggles before she reaches it, she stops, and if she cannot renew them by shaking the web with her claws, will slowly and disconsolately return to the centre of the web, there to await fresh vibrations. ”

“ As this has always been the case, I have concluded that the evolution of the silk is almost entirely a mechanical process, which is but little controlled by the spinners themselves, and that the gum requires some degree of preparation after it is secreted before it is fit for use as silk; for it must be remembered that with the spider, as with the silk-worm, the silk is formed and contained in little bags or glands in the abdomen, not as threads, but as a very viscid gum. ”

“ The large median papilla, just behind the posterior pair, surrounds the termination of the intestines, and through it the excrement is voided, the insect for this purpose turning back the abdomen as she hangs head downward, so that neither the web nor the spinners shall be contaminated. Now it has recently been ascertained that the minute globules with which the circles are studded, and the number of which on a web of average size is estimated at one hundred thousand, do not exist in that form when the viscid lines are first spun by the spider, but as a uniform coating of gum upon a thread ”

“ Pleasant, until their habits and mode of life are taken up in order, it should be understood that, during our short stay, my attention was chiefly directed to getting from the spiders as much silk as possible; for it was evident that practical men would not credit the usefulness of spiders' silk until an appreciable quantity could be shown to them. The first trial of the machine with a live spider proved it an utter failure ”

“ I admit that it could not have been pleasant for them to go so long without that which they crave every day, but I cannot believe that creatures whose legs drop off on very slight provocation, and which never show any sign whatever of real pain, suffered very acute pangs even when subjected to what occasions such distress to ourselves. ”

“ Indeed, it may be found that among spiders there is as great a difference in respect to venom as among serpents, and that those which depend upon their jaws for taking and holding their prey, such as the field and hunting spiders, are poisonous, while the web-builders which ensnare their victims are not so. ”

“ They are quite economical, and every few days, when the web has become too dry and dusty for use, will gather it up in a mass, which they stuff into their jaws and masticate for hours, swallowing the gum, but throwing out the rest, with the little particles of dust, in the form of a hard black pellet,—an instance rare, if not indeed unique, of an animal eating a substance already excreted from its body. ”

“ When, where, and how was this spider discovered? and why is it that we have never heard of it before? To answer these questions, we must go back three years, to the 19th of August, 1863, and to the camp of the Fifty-fifth Regiment of Massachusetts Volunteers, on a desolate island a little south from the harbor of Charleston, South Carolina, and in sight of the fortress which Gillmore had just begun to strengthen by the addition of tons of Union shot and shell, till, from tolerably strong masonry, its walls became solid earthworks which nothing could pierce or greatly injure. ”

“ The answer is, in brief, Yes, spiders do bite, probably all of them, if provoked and so confined that they cannot escape; though only a few tropical species can be said to seek of their own accord an opportunity for attacking man, or any creature larger than the insects that form their natural prey. ”

“ Its habits, too, are so interesting, and so different in many respects from those recorded of other species, that the observer of living creatures has here an abundant opportunity, not only for increasing his own knowledge, but for enlarging the domain of science. ”

“ Pleasant and James Island are quite high land,—high at least for the coast of South Carolina,—and are separated from the mainland, the one by the Wando River, the other by Wappoo Creek; while Sullivan's Island, where stand Fort Moultrie and other Rebel batteries, corresponds almost precisely to Morris Island, both being low and sandy, and being, as it were, bent inland from the sea, with sharp points looking toward the city, their convex shores forming a rounded entrance to the harbor. Extending southward from Morris Island, and separated from it by Lighthouse Inlet, is Folly Island ”

“ Having reached what is to be the border of her web, and thus constructed a firm framework or scaffolding, she begins to retrace her steps, moving more slowly and spinning now in the intervals of the dry loops two or three similar loops, but much nearer together and made of the elastic and viscid silk, till she has again reached her starting-point near the middle of the web, where, on its under side, she takes a position, head downward, hanging by her claws, and thus keeping her body from direct contact with the web. ”

“ We have now, moreover, in our observation of these insects, an incentive of sovereign effect, namely, the hope of increasing our national wealth; for to the practical man, to the manufacturer and the mechanic, is offered a new silken material which far surpasses in beauty and elegance that of the silk-worm, and which, however small in quantity at present, demands some attention in view of the alarming decrease in the silk crops of Europe. ”

“ The strictly professional man may have overcome his natural aversion to some of the most interesting objects of his study, such as snakes, and toads, and spiders, and vermin of all kinds; but people in general have always required that any attempt to force such abominations upon their notice should be preceded by a more or less elaborate and humble acknowledgment of their hideous aspect, their ferocious disposition, their dark and bloody deeds, and the utter impossibility of their conducing in any way to human comfort and convenience. ”

“ But look at it in this way: here were several hundred active little creatures in a space just large enough to contain them; presently they were hungry, and as no two could be of exactly the same size, the smaller and weaker naturally fell a prey to their larger brethren, or rather sisters, for either very few males are hatched, or else they are particularly good eating, and a very small proportion survive the perils of infancy. ”

“ By a calculation from this, a solid bar of spider's silk, one inch in diameter, would sustain a weight of more than seventy tons; while a similar bar of steel will sustain only fifty-six, and one of iron twenty-eight tons. The specimens were then exhibited to Professors Wyman, Agassiz, and Cooke, of Harvard University, to all of whom the species of spider was unknown, though Professor Wyman has since found a single specimen among some insects collected at the South; while to them as well as to the silk-manufacturers the idea of reeling silk directly from a living insect was entirely new. ”

“ It is evidently an established and well-understood thing among them: all seem to be aware of their destiny, to eat or be eaten. What else can they do? Human beings would do the same under the same circumstances; and I have never seen the least sign of personal spite or malignity in the spider. There is no pursuit, for there is no escape ”

“ Spinners. Now the Nephila plumipes possesses at least three pairs of spinners. Of these, two are much larger than the third, which indeed does not appear till they are separated. From the posterior of the two largest pairs seems to proceed the white, and from the anterior the yellow silk, while from the small intermediate pair seem to proceed very fine filaments of a pale-blue color, the use of which is to envelop the prey after it has been seized and killed, being drawn out by the bristles near the tips of the spider's hinder legs. ”

“ Section of Web.As usual, the radii, or spokes, of the wheel-shaped structure are first made; then the spider begins a little way from the centre, and, passing from one radius to another, spins a series of loops at considerable distances from each other till she reaches the circumference. These first loops, like the radii, are of white, dry, and inelastic silk, and may be recognized by the little notches at their junction with the radii. ”

“ As was said, the first spider was found on Folly Island on the 19th of August, 1863: it was also the last there seen. During the summer of 1864, many were found on Long Island (so called) ; and when, in the spring of 1865, our regiment was encamped on James Island near Wappoo Creek, it was toward Long Island that all my attention, so far as concerned spiders, was directed. ”

“ They are very quiet insects, and never appear disturbed at what goes on about them; neither do they run away and hide in holes and corners, like our common spiders; but if their webs are injured, or they are startled by a noise, they will shake themselves from side to side in their webs, so as to be wholly invisible. Their natural food is insects of all kinds ”

“ If stroked upon the back, they often raise their bodies as a cat does, and sometimes put back a leg to push away your finger. They may be allowed to run over one's person with perfect safety, but, if suddenly seized, will hold on with tooth as well as nail. ”

“ With leisure and many spiders at his command, this officer improved upon my suggestion, by substituting for my quill turned in the fingers a wooden cylinder worked by a crank, and by securing, at a proper distance, (between pins, I think,) one or more spiders, whose threads were guided between pins upon the cylinder. He thus produced more of the silk, winding it upon rings of hard rubber so as to make very pretty ornaments. With this simple machine I wound the silk in two grooves cut on a ring of hard rubber and parallel except at one point, where they crossed so as to form a kind of signet. ”

“ Male and Female Nephila plumipes.spots, with white hairs; she has also upon six of her legs one or two brushes of black hairs;—while he is an insignificant-looking insect of a dull-brown color and half-starved look, with only a few scattered bristles upon his slender limbs. He does nothing for himself, leaving her to make the web and provide the food, and even to carry him on her back when removal is necessary ”

“ Easily enough while we were upon Folly Island and could row through the creeks to a wharf on the east side of Long Island. But now the case was altered; for between James and Long Islands was the immense marsh already mentioned, intersected by creeks, and composed of mud practically without bottom, and ranging from eighteen to twenty-three feet in depth by actual measurement. ”

“ At first only about one twentieth of an inch long and nearly as wide, they increased in length as they grew, but for many weeks lived in common on an irregular web, feeding together on the crushed flies or bugs thrown to them. ”

“ He, however, had poorer spiders or too little perseverance, or friends and a government influenced by a most short-sighted economy and prudence, else the highly interesting and instructive account of his experiments would have been familiar to some one in this country, and would not have waited these many years to be found by accident last spring in an obscure corner of the Astor Library. ”