Now, then, in peaceable possession of what was justly its own, it waited three days with the utmost impatience, repairing the breaches of its web, and taking no sustenance that I could perceive. At last, however, a large blue fly fell into the snare, and struggled hard to get loose. The spider gave it leave to entangle itself as much as possible, but it seemed to be too strong for the cobweb. I must own I was greatly surprized when I saw the spider immediately sally out, and in less than a minute weave a new net around its captive, by which the motion of its wings was stopt; and when it was fairly hampered in this manner, it was seized and dragged into the hole. In this manner it lived in a precarious state; and nature seemed to have fitted it for such a life, for upon a single fly it subsisted for more than a week. I once put a wasp into the net; but when the spider came out in order to seize it as usual, upon perceiving what kind of an enemy it had to deal with, it instantly broke all the bands that held it fast and contributed all that lay in its power to disengage so formidable an antagonist. When the wasp was at liberty, I expected the spider would have set about repairing the breaches that were made in its net, but those it seems were irreparable; wherefore the cobweb was now entirely forsaken, and a new one begun, which was completed in the usual time. I had now a mind to try how many cobwebs a single spider could furnish; wherefore I destroyed this, and the insect set about another. When I destroyed the other also its whole stock seemed entirely exhausted, and it could spin no more. The arts it made use of to support itself, now deprived of its great means of subsistence, were indeed surprizing. I have seen it roll up its legs like a ball and lie motionless for hours together, but cautiously watching all the time. When a fly happened to approach sufficiently near, it would dart out all at once, and often seize its prey. Of this life, however, it soon began to grow weary, and resolved to invade the possession of some other spider, since it could not make a web of its own. It formed an attack upon a neighboring fortification with great vigor, and at first was as vigorously repulsed. Not daunted, however, with one defeat, in this manner it continued to lay siege to another's web for three days, and at length, having killed the defendant, actually took possession. When smaller flies happen to fall into the snare, the spider does not sally out at once, but very patiently waits till it is sure of them; for upon his immediately approaching, the terror of his appearance might give the captive strength sufficient to get loose; the manner then is to wait patiently till by ineffectual and impotent struggles the captive has wasted all its strength, and then it becomes a certain and easy conquest.