At this time the terrarium had an annex in the shape of a wooden box, a foot square, with a gauze top. Here lived two mother spiders with their egg-balls carefully hung on the cobweb beams of their homes. One day a beautiful yellow silk egg-ball was found out of doors, and when it was carefully opened to show the eggs with which it was filled, the gratifying discovery was made that these eggs were hatching. They were very tiny and very numerous. They were inclosed in a silken pouch and were the exact color of its lining. When resting the little spiders seemed to hold their legs under the body, and they were so small and so like the egg in general appearance that if they had not run about when disturbed they would never have been discovered. As soon as the egg ball was opened they exploited their one talent, for they ran out on the fingers of the person who held the ball and then suspended themselves by almost invisible threads from all parts of the fingers. When they were to be returned to the egg-ball they were gently pushed up. They then obligingly ran back into their silken home, which was carefully closed as before. These little ones were kept a week or ten days and were then allowed to escape and establish homes for themselves. The life history of the spider was thus seen, although, unfortunately, our adult spiders did not belong to the same species as the young ones. To return to the terrarium: It was now early in November and each day found one or more of the terrarium inhabitants missing. One of the caterpillars disappeared and a cocoon made of its own hair was found in its place; several chrysalids were found on the top of the terrarium; the butterflies and the grasshoppers, one by one, went into that sleep from which there is no awakening; and a number of the other creatures disappeared. The children finally concluded that the latter had gone to sleep in the ground. The grasshoppers and the tree-toads were the last to take their rest, but just before they answered Mother Nature's call to slumber, a large garden toad came to bear them company.