548 BIOLOGY AND HUMAN LIFE 



7. What do we need to know before undertaking to exterminate any 

 species ? 



8. In what ways does the struggle for existence among animals re- 

 semble that among plants ? In what ways are the two different ? 



9. How does the struggle for existence in man resemble that among 

 other animals ? How do the two differ ? 



10. What are the advantages that come to man from his social dis- 

 position ? What are the disadvantages ? 



IL What other organisms show a high degree of social organization? 

 In what respects is the social life in these organisms like man's? In 

 what ways is it different ? 



12. What recent discoveries or inventions will be likely to increase the 

 food supply ? 



13. What new discoveries or inventions can lower the cost of living 

 W'ithout increasing the food supply? 



14. How could improvements in health lower the cost of living ? 



15. What becomes of the time that is saved through new inventions 

 or discoveries ? 



16. What organic materials go to waste in your community ? What 

 possible uses could be made of them ? 



17. What do you consider the most valuable organic resource of the 

 country ? 



REFERENCE READINGS 



Conn, H. W. Bacteria, Yeasts, and Molds in the Home, chap, iv, Mold 



Diseases. 

 DuGGAR, B. M. Fungous Diseases of Plants, pp. 7-8, 85-88, Methods of 



Control. 

 Fanners' Bulletin 1220, Grape Insect and Fungus Enemies. 

 United States Department of Agriculture. Yearbook for 19 19. Reprint 



802, Progress in Eradicating Contagious Animal Diseases. 

 Ward, C. H. Exploring Nature, pp. 140-148, ''Natural Selection"; 



pp. 108-119, ''Mimicry in Animals" (from Alfred Russel Wallace's 



"Tropical Nature"). 

 Fanners' Bulletin 6^0, Field Mice as Farm and Orchard Pests. 

 Farmers' Bulletin i32g, The Boll-Weevil Problem. 

 Farmers' Bulletifi 1444, Game Laws, 1924-1925. 



