TABLE OF CONTENTS 



Some Physical and Chemical Factors 

 ill tlie Metabolism of Lakes. D. S. 

 Rawson" 9 



The Utilization of Solar Ener.uy by 

 Aquatic Organisms. George L. 

 Clarke 27 



The Distribution of Bacteria in Lakes. 

 Arthur T. Henrici 39 



Some Relationships of Phytoplankton 

 to Limnology and Aquatic Biology. 

 G. W. Prescott 65 



The Zooplankton in Relation to the 



Metabolism of Lakes. AVillis L. 

 Tressler 79 



The Microscopic Fauna of the Sandy 

 Beaches. Robert AV. Pennak 94 



Rooted Aquatic Plants and Their Re- 

 lation to the Limnology of Fresh- 

 Water Lakes. L. R. Wilson 107 



Role of the Bottom Fauna in the Pro- 

 ductivity of Lakes. Frank E. 

 Eggleton 123 



The Position of Fish and Other Higher 

 Animals in tlie Economy of Lakes. 

 F. E. J. Fry ^ 132 



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