LIMNOLOGY - Continued 



NEEL, JOE K. A limnological investigation of the psammolittoral 

 zone in Douglas Lake, Michigan, with especial reference to shoal and 

 shoreline dynamics . PhD, Univ„ of Michigan, 19k7 • 



PRATT, DAVID MARIOTTI. The influence of temperature on popula- 

 tion development in Daphnia. PhD, Harvard, 19U3. 



PHILSON, PAUL J» The freshwater algae of North and South 

 Carolina. I. Cyanophyceae. PhD, Minnesota, 1935° 



RAYMOND, MARION R. A limnological study of the plankton of 

 a concretion-forming Marl lake. PhD, Michigan, 1936. 



RILEY, GORDON A The copper cycle in natural waters and its 

 biological significance . PhD, Yale Univ., 1937 • 



ROGICK, MARY D. The freshwater Bryozoa of Lake Erie. PhD, 

 Ohio, 193U- 



SANFORD, KATHERINE K. The effect of temperature on the expression 

 of inters exuality in Daphnia longispina . 100 p. PhD, Brown, 19U3- 



SARGENT, MARSTON C. Aspects of the physiology of blue-green 

 Algae. PhD, California Tech., 193U. 



SPRULES, WILLIAM MEMBERY. Factors affecting the distribution 

 of aquatic insects in the Madawaska river system, Ontario. PhD, 

 Toronto, 19U2. 



STANFORD, LYLE M. Preliminary studies on the biology of the 

 Snake River. PhD, Univ. of Washington, 19U3. 



STARK, 77ILLIAM H. I- Factors influencing the bacterial population 

 of fresh water lakes. II. Lactate fermenting butyric acid anaerobes. 

 PhD, Wisconsin, 1939* 



STOKES, JACOB B„ Relations between algae and other micro- 

 organisms in Nature. PhD, Rutgers, 1939 • 



SWINYARD, CHESTER A. A limnological study of several Minnesota 

 lakes. PhD, Univ. of Minnesota, 193U» 



WARD, ELIZABETH B. A seasonal population study of pond 

 Entomostraca in the Cincinnati region. PhD, Cincinnati, 1939- 



WHITFORD, LARRY ALSTON. The freshwater algae of North Carolina. 

 PhD, Ohio, 19U2. 



2U 



