spine. Muscular strength comes from bodily activity; hence, one of the
best preventives of spinal curvature is daily exercise in the open air.

5. _Sprains_ are produced when the ligaments which bind the bones of
a joint are strained, twisted, or torn from their attachments. They are
quite as serious as a broken bone, and require careful attention lest they
lead to a crippling for life. By premature use a sprained limb may be
permanently impaired. Hence, the joint should be kept quiet, even after
the immediate pain is gone.

6. _A Dislocation_ is the forcible displacement of a bone from its
socket. It is, generally, the result of a fall or a violent blow. The
tissues of the joint are often ruptured, while the contraction of the
muscles prevents the easy return of the bone to its place. A dislocation
should be reduced as soon as possible after the injury, before
inflammation supervenes.

PRACTICAL QUESTIONS.

1. Why does not a fall hurt a child as much as it does a grown person?

2. Should a young child ever be urged to stand or walk?

3. What is meant by "breaking one's neck"?

4. Should chairs or benches have straight backs?

5. Should a child's feet be allowed to dangle from a high seat?

6. Why can we tell whether a fowl is young by pressing on the point of the