REFERENCE BOOKS 157 



PROBLEM QUESTIONS 



1. How long does it take for one generation of flies to develop? 



2. During what part of the year are flies most abundant ? Why ? 



3. During the Spanish- American War flies were more deadly 

 than Spanish bullets. Explain. 



4. What diseases may be carried by flies? 



' 5. What relation has the garbage pail to the typhoid fly? Ex- 

 plain. 



6. Why should food exposed for public sale be kept covered? 



7. Why should food on the table be screened? 



8. What dangers come from open spittoons and what do flies 

 have to do with this danger? 



9. Why should garbage pails be frequently sprinkled with 

 slaked lime or kerosene? 



I 10. Why the cry in the early spring " Swat the fly " ? 



11. What harm do mosquitoes do? How do they do this 

 harm? 



12. What are the natural enemies of the mosquito? 



13. How would you go to work to rid your neighborhood of 

 mosquitoes ? 



14. How would you tell harmful from harmless mosquitoes? 



REFERENCE BOOKS 



Hunter, Civic Biology, Chap. XV. American Book Company. 



Hunter, Elements of Biology, r;ha.p._TrpT- American Book Company. 



Hunter, Essentials of Biology, Chap. XVII. American Book Company. 



Bigelow, Visiting a Fish Hatchery. Guide to Nature, December, 1908. 



Britton, Mosquito Plague of Connecticut Coast Region. Connecticut Agricultural 



Experiment Station. 



Burroughs, Squirrels and Other Fur Bearers. Houghton, Mifflin Company. 

 Carter, The Vampire of the South. McClure's Magazine, October, 1909. 

 Chappell, The House Fly Man Killer. Pearson's Magazine, June, 1910. 

 Daugherty, Economic Zoology. W. B. Saunders. 



Davenport, Introduction to Zoology, pp. 151-158. The Macmillan Company. 

 Doane, Insects and Disease. Henry Holt and Company. 

 Dotey, The Mosquito. N. Y. State Journal of Medicine, 1908. 

 Felt, Insects Injurious to Forest Trees. New York State Reports, 1898. 

 Field, Sea Mussels as Food. Bureau of Fisheries Document, 1910. 

 Forbes, The Lake as a Microcosm. Bulletin, Peoria (111.) Science Association, 1887. 

 Frost and Voorhees, The House Fly Nuisance. Country Life in America, May, 1908. 



