1. Why is the skin so important? 2. Name some of the things that it does. 3. How many layers has it? Describe each. 4. What glands are found in the skin? 5. What is sweat, or perspiration, and from what does it come? 6. Why should clothing be porous? 7. Why should clothing be frequently washed? 8. Describe a hair gland and its muscles. 9. Describe the process of "nail-making." 10. Is there any process like this among the lower animals? 11. Why do we need nails? 12. What causes the white crescent on the nail? 13. Explain how the skin is a heat regulator. 14. What is the "normal temperature" of the body? 15. How does perspiring affect the heat of the body? 16. What are the "nerve buds" or "bulbs"? 17. Name four things that they do. CHAPTER XVI 1. What are the uses of the skin to the rest of the body? 2. In what two ways does the skin clean itself? 3. What should we specially avoid in washing or scrubbing the skin? 4. What are the characteristics of a good soap? 5. What are the dangers of a poor soap? 6. What are the advantages of cold water in bathing? 7. How often should hot baths be taken and why? 8. On what parts of the body should soap be most freely used? 9. What is the best way of keeping the hair and scalp healthy? 10. Why is this important? 11. Why should hair tonics be let alone? 12. What causes dandruff? 13. How should the nails be trimmed and cleaned? 14. What should be done to the nail-fold? 15. Why is dirt under the nails sodangerous? 16. What qualities should a good garment possess as to shape, fit, and texture? 17. What are the advantages and disadvantages of wool? 18. What are the advantages and disadvantages of cotton? 19. Why are furs unwholesome? 20. What is the best possible material for an undergarment? 21. What are some of the causes of diseases of the skin? 22. What is the cause of sunburn and freckles? 23. What makes a good complexion? 24. What is a corn? What causes it? CHAPTER XVII 1. Name four processes that take place in the living body. 2. What two kinds of waste do these processes cause? 3. What is the name of the "body smoke"? 4. How is the body smoke carried away? 5. What do the terms "soluble" and "insoluble" waste mean? 6. How does the insoluble waste leave the body? 7. By what path does the soluble waste leave the body? 8. How many times in an hour is all the blood in the body pumped through the liver, kidneys, and skin? 9, Why is this done? 10. Why is the blood from the food tube sent to the liver directly, instead of by way of the heart? 11. Why is the liver such a large organ? 12. What does the liver do to the blood? 13. What is the bile duct? 14. What is the bile? 15. What is the gall bladder? 16. What do the terms "bilious" and "jaundiced" mean? 17. What effect does alcohol have upon the liver? CHAPTER XVIII