4. My shoulder blades are flat, thin, and like a triangle in shape; they
are for my arms to rest upon.

5. My collar bones are fastened to my shoulder blades and my breastbone;
they keep my arms from sliding too far forward.

6. The bones of old people are hard and brittle; those of children soft and
flexible; so I must sit and stand erect, that mine may not be bent out of
shape. I must not wear tight clothing, or do anything that will crowd them
out of their places.

7. My bones are made from my food, after it has been changed into blood; so
I must be careful to eat good, wholesome food, that they may be strong and
healthy.

8. I must not breathe impure air, because impure air makes bad blood, and
bad blood makes poor bones.

9. The body of every person is changing all the time, because the skin,
flesh, and bones are always wearing out, and the blood is always repairing
and building them again.

* * * * *

QUESTIONS FOR THE FORMULA.

1. Tell about the skull.

2. Tell about the spine.

3. Tell about the ribs.

4. Tell about the shoulder blades.

5. Tell about the collar bones.

6. Tell about the difference between the bones of old people and those of
children.

7. Of what are your bones made?

8. If you wish your bones to be strong, why should you not breathe impure
air?

9. What have you learned about the change which is always taking place in
the body?

* * * * *

[Illustration: THE JOINTS OF THE SKULL.]

* * * * *

A little girl was looking at some pictures of ladies in fashionable
dresses. While admiring the beautiful styles and bright colors of the
garments, she pointed to the waist of one, and exclaimed, "_That means
trouble_." The waist was too small for a grown person, and could only have
been made so by _tight-lacing_. The child had been taught that dresses,
corsets, coats, vests, bands, or anything fastened tightly around the
waist, press upon the ribs and crowd them out of place, preventing the
heart, lungs, and other inside organs from working as they should, causing
headache, dyspepsia, shortness of breath, and often ending in some
incurable disease, so she knew that _tight clothing means trouble_ to the
wearer.

[Illustration: FIG. 1. Deformed by tight-lacing.]

[Illustration: FIG. 2. A natural, well-shaped chest.]

* * * * *

QUESTIONS ON THE DESCRIP