the brain.

5. A row of bones arranged in the back, one above another, forms the
backbone. The backbone has a canal running through it lengthwise, in
which lies the spinal cord.

6. The trunk is hollow, and has two chambers, one called the cavity of
the chest, and the other the cavity of the abdomen.

7. The chest contains the two lungs and the heart.

8. The abdomen contains the stomach, liver, and many other very
important organs.

9. Is it not our duty to take good care of our bodies as we would of
some nice present from a friend?




CHAPTER IV.

OUR FOODS.


~1.~ We all know very well that if we do not eat we shall rapidly lose
in weight, and become very weak and feeble. Did you ever think how much
one eats in the course of a lifetime? Let us see if we can figure it up.
How much do you suppose a boy eats in a day? Let us say two pounds. How
much does he eat in a year? There are three hundred and sixty-five days