12. State some ways in which the nerves give us pain.
13. State some ways in which they give us pleasure.
14. What part of us has the most work to do?
15. How must we keep the brain strong and well?
16. What does alcohol do to the nerves and brain?
17. Why does not a drunken man know what he is about?
18. What causes most of the accidents we read of?
19. Why could not the man who had been drinking tell the difference between a railroad track and a place of safety?
20. How does the frequent drinking of a little liquor affect the body?
21. How does sickness affect people who often drink these liquors?