PHYSIOLOGY - Continued 



BOOS, Br. Cletus S., F.3.G. An investigation of the pancreatic 

 proteinase of the shark, Car char inus obscurus . PhD, Catholic, 19U3. 



BRETT, John Ro Temperature tolerance in young Pacific salmon, 

 genus Oncorhynchus . PhD, Toronto, 1951- 



BROWN, Frank A. Color changes in crustaceans with special refer- 

 ence to Palaemonetes . PhD, Harvard, 193U- 



BUTLER, Philip Alan, Modification of the normal seasonal cycle 

 by means of pituitary hormones in the common goldfish, Carassius 

 auratus L. PhD, Northwestern, 19U0. 



CHESTNUT, Alphonse F. Studies on the digestive processes in 

 Ostrea virgin ica . PhD, Rutgers, 19U9. 



CLARK, Eugenie. The sexual behavior of two sympatric species of 

 poeciliid fishes and their laboratory induced hybrids, with an analysis 

 of the factors involved in the isolating raechanismo PhD, New York, 

 1950. 



CLARKE, Robert W= The maintenance of water equilibrium in fish 

 with special reference to renal regulation. PhD, New York, 193h. 



COLLINS, Gerald B. The influence of certain physical and chemi- 

 cal factors upon the orientation of migrating anadromous fish of the 

 genus Pomolobus . PhD, Harvard, 19^1 • 



DANIELSON, Ragnar N. An experimental study of chromatophores and 

 color change with special attention to cyprinid fishes. PhD, Minnesota, 

 1936. 



DAVIS, Neil C. The mechanism of the fish thiaminase. PhD, Iowa 

 State, 19^0. 



EVERSOLE, Wilburn J. Effect of steroid hormones on sexual 

 development in fish (Lebistes reticulatus ) . PhD, New York, I9U0. 



FERGUSON, Frederick Palmer. Reactions of caudal -band melano- 

 phores in Fundulus heteroclitus , with special reference to the effect 

 of temperature on the rate of pigment concentration, PhD, Minnesota, 

 19U3. 



FOST'-]R, Kondall V.'. Tho hluo ph'-iro :'n thr; color chan";GS of fish. 

 PhD, Harrard, 193^. 



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