that when I sprinkled the nest with water, as it was my custom to do every morning, the tube, which had become somewhat flaccid since it had lost its attachment to the gauze, gradually recovered its perfect shape. This was repeated for eleven days, until on the morning of the twelfth day (January 31st), finding the tube completely collapsed, instead of merely sprinkling water over it, I drew a large camel-hair brush loaded with water along its whole length, when the tube started up, and almost instantaneously regained its cylindrical form.
This morning the spider had left her cell, and was roaming about the pot when I wetted the tube, thus proving that she was in no way concerned with its movements, which were no doubt due to hygrometric action.
Between this time and February 25th, I constantly restored the tube to its shape by wetting it in the way above described, but on this day it remained very flaccid, and only expanded partially. For some days previous to this date, the spider had left the tube when it collapsed, and only returned to it again when it had resumed its shape. On the following day I found the entire silk tube and the cell again collapsed and lying flat upon the ground, and this time water failed to produce its previous effect.
The spider then became very restless and excited, and I observed that the door of one of the little nests constructed by one of her five offspring which had been imprisoned in the same pot with her, had been torn off, and thrown on one side, and there could be little doubt but that the mother had been guilty of this very un-maternal action. By the evening she had
