The large brain is in the top and front of the skull, and the small one lies beneath the back part of the larger one, If we look again we shall see that each brain is divided in the middle into a right and a left half.

Each half is, in fact, a complete brain, so that we really have two pairs of brains.
[Illustration: THE BRAIN.] ~4.

Brain Cells.~--The brain is a curious organ of a grayish color outside and white inside.

It is soft, almost like jelly, and this is why it is placed so carefully in a strong, bony box.

If we should put a little piece of the brain under a microscope, we should find that it is made up of a great number of very small objects called _nerve_ or _brain cells_.