muscles of my trunk cover and move the parts of my neck and trunk. The
muscles of my limbs cover and mote the parts of my arms and legs.

6. Those muscles are the weakest which I use least; those muscles are the
strongest which I exercise most in work or play.

7. If I would be strong and healthy,
my muscles must be used,
my muscles must be rested,
my muscles must be supplied with good blood.

I must exercise in work and play to make them strong; I must sleep, or
change my kind of work or play, to give them rest, when they are tired; I
must breathe pure air, take wholesome food and drink, and live in the
sunlight, to supply them with good blood; I must not weaken them by using
alcohol or tobacco.

* * * * *

QUESTIONS FOR THE FORMULA.

1. Tell about the muscles.

2. How many muscles have you in your body?

3. Of what use are the muscles?

4. How may the muscles be named?

5. Tell about the muscles of the head, trunk, and limbs.