3i6 BIOLOGY AND HUMAN LIFE 



QUESTIONS 



1. What is the advantage of using poisons for kiUing bacteria? What 

 is the disadvantage ? 



2. What are the advantages of refrigeration (low temperature) for 

 storing food ? What are the disadvantages ? 



3. Why is boiled water safer to drink than raw water ? What are the 

 disadvantages of using boiled water ? 



4. Why are sick people quarantined ? How long should a sick person 

 be quarantined? Why? 



5. What is the best point at which to fight an epidemic ? Why ? 



6. How can we preserve our own health without depending upon 

 others ? 



7. How can we become liable for the health of others ? 



8. How can we measure the value of different methods of combating 

 disease ? 



9. How can we prove that diseases are due to microbes rather than to 

 some other conditions, such as fear, bad weather, or "evil eye"? 



REFERENCE READINGS 



Conn, H. W. Bacteria, Yeasts, and Molds in the Home, chap, viii, The 

 General Nature of Bacteria; various chapters for special reports. 



Hough and Sedgwick. The Human Mechanism, chap, xxi, Prevention 

 and Cure of Colds and Some Other Inflammations. 



Ward, C. H. Exploring Nature, ''Bacteria," pp. 209-219; ''Tuber- 

 culosis," pp. 220-230. 



Farmers' Bulletin 440, Bacteria in Milk. 



United States Department of Agriculture. Bulletin J42, Present Status 

 of Pasteurization of Milk. 



Bureau of Animal Industry. Bulletiji 161, Study of Bacteria which 

 survive Pasteurization. 



Farmers' Bulletin g26, Some Common Disinfectants. 



