Ecologic Study of Living Organisms 645 



Fasset: Manual of Aquatic Plants, McGraw-Hill Book Co., Inc. 



Gates: Field Manual of Plant Ecology, McGraw-Hill Book Co., Inc. 



King and Pessels: Working With Nature, Harper & Brothers. 



McDougall: Plant Ecology, Lea & Febiger. 



Morgan: Field Book of Ponds and Streams, G. P. Putnam's Sons. 



Muenscher: Aquatic Plants, Comstock Publishing Co., Inc. 



Needham and Needham: Guide to the Study of Fresh-Water Biology, Comstock 



Publishing Co., Inc. 

 Costing: Plant Communities, W. H. Freeman & Co. 

 Pearse: Animal Ecology, McGraw-Hill Book Co., Inc. 

 Ward and Whipple: Fresh Water Biology, John Wiley & Sons, Inc. 

 Weaver and Clements: Plant Ecology, McGraw-Hill Book Co., Inc. 

 Welch: Limnology, McGraw-Hill Book Co., Inc. 

 ZoBell: Marine Microbiology, Chronica Botanica Co. 



