person tickles them. So Nature puts a few nerve cells in the spinal cord
which can do a certain easy kind of thinking. When we do things over and
over a great many times, these cells, after a time, learn to do them
without the help of the large brain. This is the way a piano-player
becomes so expert. He does not have to think all the time where each
finger is to go. After the tunes have been played a great many times,
the spinal cord knows them so well that it makes the hands play them
almost without any effort of the large brain.


SUMMARY.

1. The part of the body with which we think is the brain.

2. The brain is found filling the hollow place in the skull.

3. There are two brains, the large brain and the small brain.

4. Each brain is divided into two equal and complete halves, thus making
two pairs of brains.

5. The brain is largely made up of very small objects called nerve or
brain cells.

6. The nerve cells send out very fine branches which form the nerves.

7. The nerve branches or fibres run to every part of the body. They pass
out from the brain to the rest of the body through a number of openings
in the skull.