THE SKIX AND THE APPENDAGES 207 



QUESTIONS 



1. Why is the skin on the chest more sensitive to light than the skin 

 on the hands ? 



2. Why is the back of the hand usually darker than the palm ? 



3. How can we find out what parts of the skin are sensitive to cold 

 and what parts to heat ? What parts are most sensitive to touch ? 



4. Why does a surgeon wear rubber gloves when he is operating ? 



5. What is the advantage of vigorous sweat ? What is the dis- 

 advantage ? 



6. What are the advantages of cold baths ? W' hat are the dis- 

 advantages ? 



7. What is the relation of heart action to the complexion ? 



8. How does the healthy condition of the kidneys and bowels in- 

 fluence the complexion ? 



9. How can the complexion be treated from the inside ? 



10. How does the state of mind influence a person's appearance ? 



REFERENCE READINGS 



McCarthy, J. D. Health and Efficiency, chap. viii. 



Hough and Sedgwick. The Human Mechanism, pp. 184-188; chap.xxiv, 



Hygiene of the Feet ; chap, xxv, Bathing ; chap. xxvi. Clothing. 

 United States Bureau of Education. Keep- Well Series, No. 12. Flat 



Foot and Other Foot Troubles. 



