CONTENTS 



Page 



Ecological Distribution of Fresh-Water Algae. 



L. A. Whitford, North Carolina State College 2 



Algal Populations in Flowing Waters. 



John L. Blum, Canisius College 11 



Biological Disturbances Resulting From Algal Populations in 



Standing Waters . 



G. W. Prescott, Michigan State University 22 



Algae and Metabolites of Natural Waters. 



Richard T. Hartman, University of Pittsburgh 38 



Algae in Relation to Oxidation Processes in Natural Waters. 



Alfred F. Bartsch, United States Public Health Service 56 



Organic Production by Plankton Algae, and Its Environmental Control. 



John H. Ryther, Woods Hole Oceanographic Institution 72 



Artificial Media for Fresh-Water Algae: Problems and Suggestions. 



L. Provasoli and I.J. Pintner, Haskins Laboratories 84 



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