OCEANOGRAPHY - Continued 



OSTROFF, ROSE M. Studies on the metabolism of bacteria of 

 marine origin. PhD, Washington, Seattle, 1938. 



REVELLE, ROGER. Marine bottom samples collected in the Pacific 

 ocean by the Carnegie on its seventh cruise. PhD, California, 1936. 



THORP, ELDON M« Calcareous shallow -water marine deposits of 

 Florida and the Bahamas . PhD, California, 193U« 



WILLIAMS, LOUIS G. Marine algae of Cape Lookout, North Carolina. 

 PhD, Duke, 19U8. 



WIRTH, HENRY E. An apparatus for the determination of small 

 density differences and its application to the determination of the 

 isotopic composition of sea water. PhD, Washington, Seattle, 1935. 



PLANKTON 



(See also LIMNOLOGY, Felin, Galler) 



CAMPBELL, ROBERT So 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, Univ. of Michigan, 193h» 



CUPP, EASTER E. A critical study of certain distinguising 

 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 

 Michigan. PhD, Northwestern Univ.,, 19h3- 



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 Univ., 19U2. 



LEAVITT, BENJAMIN B. The vertical distribution of zooplankton 

 in the ocean. PhD, Harvard Univ., 1937 • 



LILLICK, LOIS Co The microplankton of the gulf of Maine with 

 reference to its productivity. PhD, Univ. of Michigan, 1938. 



26 



