2. The whole-grain preparations furnish the best food for the bones.

3. Walking at too early an age often makes the legs crooked.

4. Hard work at too early an age stunts the growth.

5. Bad positions and tight or poorly-fitting clothing are common causes
of flat chests, round shoulders, and other deformities.

6. Tight or high-heeled shoes deform the feet and make the gait awkward.

7. The bones may be easily broken or put out of joint, or the ligaments
may be torn by rough play.

8. Alcohol prevents healthy growth.




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