12. When the cold weather comes, the snail crawls away to some quiet place, usually under a log or a stone, draws himself into his house, makes a door to keep out the cold, and goes to sleep until spring.
LESSON LI.
THE FLY AND ITS WAYS.
1. Here is one of our friends that we know very well—the common house-fly. It is here drawn large on purpose, so that we can better see how it is made.
2. The fly is an insect. Its body is divided into three parts; and it has three pairs of legs. Upon its head are two large eyes, each of which is made up of about two thousand small eyes. When we look through a glass that makes things look large, we can see and count these little eyes of the fly.
3. Its feet are made in such a way that they will stick wherever it places them, so that it can crawl up the walls of the house, or on the ceiling, with its back down.
4. The fly's wings are light and thin, and made up of fine network. It has no jaws or teeth; and, instead of lips, it has a tube, or trunk, through which it sucks up its food, as we can suck milk through a straw.