PHYSIOLOGY - Continued 



WEI3EL, George F. The comparative effects of teleost and beef 

 pituitary on chroraatophores of cold-blooded vertebrates, PhD, Califor- 

 nia, Los Angeles J 19U9- 



WILDTOG, James L. The oxygen threshold of three species of fish. 

 PhD, Indiana, 1938. 



YOKOYAMA., Hisako 0. Studies on the origin, development, and 

 seasonal variations in the blood cells of the perch, Perca flavescens » 

 PhD, Wisconsin, 19U8. 



YOUNG, Roger Arliner„ The indirect effects of Roentgen rays on 

 certain marine eggs, PhD, Pennsylvania, I9I1.O. 



PLAJJKTON 



(3ee~also CRUSTACEk, Boden, Olson; ECOLOGY , Colej LIMTJOLOGY , Felin, 

 Finkle, Galler, Hotchkiss, Jahoda; MISCELLANEOUS , Fitz- 

 gerald; TAXONOMY, Silva) 



CAMPBELL, Robert S. Vertical distribution of the Rotifera in 

 Douglas Lake, Michigan, with special reference to submerged depression 

 individuality. PhD, Michigan, 1939. 



CHANDLER, David C. The fate of typical lake plankton in rivers 

 and streams. PhD, Michigan, 193U. 



CUPP, Easter E. A critical study of certain distinguishing 

 characters in three closely allied plankton species of the diatom 

 genus Nitzschia , and their relationships to certain environmental 

 conditions, PhD, California, 193U. 



DAMANN, Kenneth E. An analysis of plankton yields of Lake Michi- 

 gan, PhD, Northwestern, 19U3. 



DUNBAR, Maxwell J, Studies in the arctic plankton: comprising a 

 faunistic survey of certain of the marine planktonic groups collected 

 in the Canadian eastern arctic, and an investigation of the breeding 

 cycles of five of the most important species in the eastern arctic and 

 in west Greenland, PhD, McGill, 19U2, 



FREESE, Leonard R. Marine plankton diatoms of the Rockfort, 

 Texas Bay area, PhD, Northwestern, 1951. 



HOHN, Matthew H. A study of the distribution of diatoms (Bacil- 

 larieae) in western New York State, including some observations with 

 the electron microscope. PhD, Cornell, 1951. 



30 



