BIBLIOGRAPHY 



Ward, H. B., and Whipple, G. C. 191 8. Fresh- Water 

 Biology. John Wiley & Sons. The most inclusive 

 American fresh water biology. Illustrated keys and 

 descriptions. 



Whipple, S. C. 1927. The Microscopy of Drinking Water. 

 (Revised by Fair, G. M., and Whipple, M. C.) John 

 Wiley & Sons. 



CHAPTER II 



LIFE IN PONDS AND STREAMS 



General References: Needham and Lloyd, 1916; Whipple, 1927. 

 Forbes, S. A. 1925. The Lake as a Microcosm. Bull. 



IlHnois Nat. Hist. Survey, Vol. 15, Art. 9, Urbana. 

 Needham, J. G. 1922. A Biological Reconnaissance of Lake 



George. Biol. Survey of Lake George, N. Y. vState of 



N. Y., Conservation Com., Albany. 



Seasonal succession of life. 



General References: Shelf ord, 1913, Animal Communities in 

 Temperate America, see successions in lakes and ponds. 



Allee, W. C. 19 11. Seasonal Succession in Old Forest 

 Ponds. Trans. Illmois State Acad. Sci., Vol. 4: 126-131. 



Shelford, V. E. 1918. Physiological Problems in the Life- 

 Histories of Animals, with Particular Reference to Their 

 Seasonal Occurrence. Amer. Nat., Vol. 52: 129-154. 

 1919. Nature's Mobilization. Nat. Hist., Vol. 19: 205- 

 210. 



1929. Laboratory and Field Ecology. Williams 8c 

 Wilkins Co., Baltimore. 



CHAPTER III 



COLLECTING AND PRESERVING WATER ANIMALS 



Aquatic Life. A magazine devoted to aquarium life. It con- 

 tains names and addresses of supply dealers. Roth, A. 

 Baltimore. 



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