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tint or dark spots due to soda be eaten or thrown away? 5. Why, during an epidemic, are those who have used alcohol as a beverage usually the first to be attacked? 6. Do you buy more wood (cellulose) when you buy beans or when you buy nuts? (p. 95.) 7. Do you buy more water when you buy bread or when you buy meat? 8. Why do people who live in overheated rooms often have poor appetites? (p. 90.) 9. Explain how the stomach may be weakened by the eating of predigested foods. 10. Why are deep breathing and exercises that strengthen weak abdominal walls better for the liver than are drugs? (See p. 58.) 11. Sixty students at the University of Missouri found by doing without supper that their power to work was greater, their health better, and many of them gained in weight. So they ate only two meals thereafter. If sixty plowboys tried the experiment, would the result probably have been the same? 12. If a person began to eat less at each meal, or only ate one meal a day, yet gained in weight, should he agree with a friend who told him he was starving himself? Should he agree if, instead of gaining, he lost weight? 13. Why is half-raw or soggy bread harder to digest than the raw grain itself? Which would be thoroughly chewed and cause a great flow of saliva? 14. Ask a fat person whether he drinks much water. A lean person. 15. Why is one whose waist measures more than his chest a bad life insurance risk? 16. What changes in habits tend to make a rheumatic middle-aged person more youthful? 17. How is the ingenious "fireless cooker" constructed?

Atwater's Experiments with Alcohol.—A few years ago Professor Atwater proved that if alcohol is taken in small quantities, it is so completely burned in the body that not over two per cent is excreted. He inferred that it is a food, since it gives heat to the body and possibly gives energy also. His experiments did not show whether any organ was weakened or injured by its use. As alcohol is chiefly burned in the liver, it probably cannot supply energy as is the case with food burned in nerve cell and muscle cell. The heat supplied by its burning is largely lost by the rush of blood to the skin usually caused by drinking the alcohol. Dr. Beebe, unlike Professor Atwater, experimented upon persons who had never taken alcohol, and whose bodies had not had time to become trained to resist its evil effects. He found that it caused an increased