bad thing to do. Use only a soft towel in washing your ears. You
should never put any thing hard or sharp into them.

I must tell you a short ear story, about my father, when he was a small
boy.

One day, when playing on the floor, he laid his ear to the crack of the
door, to feel the wind blow into it. He was so young that he did not
know it was wrong; but the next day he had the earache severely.
Although he lived to be an old man, he often had the earache. He thought
it began from the time when the wind blew into his ear from under that
door.

ALCOHOL AND THE SENSES.

All this fine work of touching, tasting, seeing, smelling, and hearing,
is nerve work.

The man who is in the habit of using alcoholic drinks can not touch,
taste, see, smell, or hear so well as he ought. His hands tremble, his
speech is sometimes thick, and often he can not walk straight.
Sometimes, he thinks he sees things when he does not, because his poor
nerves are so confused by alcohol that they can not do their work.

Answer now for your taste, smell, and touch, and also for your sight and
hearing; should their beautiful work be spoiled by alcohol?

REVIEW QUESTIONS.

1. Name the five senses.

2. What is the pupil of the eye?

3. How is it made larger or smaller?

4. Why does it change in size?

5. What can a cat's eyes do?

6. Where is the nerve of the eye?

7. What work does it do?

8. Why must one be careful of his eyes?

9. Where should the light be for reading or
studying?

10. Tell the story of the boys who looked at the
sun.

11. Tell the story of the boy who made himself
cross-eyed.

12. Why should you not read in the twilight?

13. What would be the result, if you should kill
the nerves of sight?

14. Where are the true ears?

15. How may the nerves of hearing be injured?

16. Tell the story of the boy who injured his ear.

17. How is the work of the senses affected by
drinking liquor?

CHAPTER XVIII.

HEAT AND COLD.

WHAT MAKES US WARM?

"[Illustration: M]Y thick, warm clothes make me warm," says some child.

No! Your thick, warm clothes keep you warm. They do not make you warm.

Take a brisk run, and your blood will flow faster and you will be warm
very quickly.