THE SKIN 23 



the skin. The cold water stimulates the heart and lungs 

 and causes the bather to breathe deeply and vigorously. 

 A cold bath, if not taken rapidly, may injure a delicate 

 person more by its duration than by its coldness ; a deli- 

 cate person may bear a very cold shower-bath if continued 

 for only a few seconds. 



35. THOUGHT LESSON. The Value of Health. i. 

 Name five blessings in youth or later in life that result 

 from good health. 



2. Name five unfortunate results of bad health. 



3. Name five things that people apparently value more 

 highly than health. 



4. Think of ten grown persons at random. How many 

 of the ten are in sound health ? 



APPLIED PHYSIOLOGY 

 EXERCISE I 



1. Why does the palm of a washerwoman's hand absorb more 

 water than the back of the hand ? ( 11.) 



2. If a hair is pulled out, what determines whether it will grow 

 again? (9.) 



3. Why is linen used for towels ? ( 33.) 



4. What causes the hair to " stand on end " when a person is fright- 

 ened or when an animal is cold ? ( 10.) 



5. Calculate the length of the perspiratory tubes in one square inch 

 of the palm, if placed end to end. ( 7.) 



6. Why does the skin become roughened and chapped in cold 

 weather? (See chapter on Circulation.) 



7. What color of clothing is best adapted to summer ? To winter ? 



8. When is a scar incapable of being affected by freckles or tan? 



9. Could a scar on a negro be white ? 



10. How may rubber shoes make the feet moist? 



EXERCISE H 



11. Why does the heat seem more oppressive in moist weather? 



12. Which should usually wear warmer clothing, a farmer or a 

 merchant ? 



