Page:The history of silk, cotton, linen, wool, and other fibrous substances 2.djvu/180

 *ject by some sense of which we are ignorant. Kirby also says, that he once observed a small garden spider (Aranea reticulata) "standing midway on a long perpendicular fixed thread, and an appearance caught" his "eye, of what seemed to be the emission of threads." "I," therefore, he adds, "moved my arm in the direction in which they apparently proceeded, and, as I had suspected, a floating thread attached itself to my coat, along which the spider crept. As this was connected with the spinners of the spider, it could not have been formed" by breaking a "secondary thread ." Again, in speaking of the gossamer-spider, he says, "it first extends its thigh, shank, and foot, into a right line, and then, elevating its abdomen till it becomes vertical, shoots its thread into the air, and flies off from its station ."

Another distinguished naturalist, Mr. White of Selborne, in speaking of the gossamer-spider, says, "Every day in fine weather in autumn do I see these spiders shooting out their webs, and mounting aloft: they will go off from the finger, if you take them into your hand. Last summer, one alighted on my book as I was reading in the parlor; ran to the top of the page, and shooting out a web, took its departure from thence. But what I most wondered at, was, that it went off with considerable velocity in a place where no air was stirring; and I am sure I did not assist it with my breath ."

"Having so often witnessed," says Mr. Rennie, "the thread set afloat in the air by spiders, we can readily conceive the way in which those eminent naturalists were led to suppose it to be ejected by some animal force acting like a syringe; but as the statement can be completely disproved by experiment, we shall only at present ask, in the words of Swammerdam—'how can it be possible that a thread so fine and slender should be shot out with force enough to divide and pass through the air?—is it not rather probable that the air would stop its progress, and so entangle it and fit it to perplex the spider's operations ?'"