CHAPTER XX.
THE MUSCLES AND HOW WE USE THEM.
~1.

The Muscles.~--Where do people obtain the beefsteak and the mutton-chops which they eat for breakfast?
From the butcher, you will say; and the butcher gets them from the sheep and cattle which he kills.
If you will clasp your arm you will notice that the bones are covered by a soft substance, the flesh.

When the skin of an animal has been taken off, we can see that some of the flesh is white or yellow and some of it is red.

The white or yellow flesh is fat.

The red flesh is lean meat, and it is composed of muscles.
~2.