SEAFOOD POISONS - Continued 



WIKHOLM, DONALD M, I. Studies on the toxic principle and 

 accompanying bases found in the sea mussel, Mytilus calif orni anus , 

 Conrad. II. Studies on the toxic principle and the accompanying 

 bases found in the marine plankton organism, Gonyaulax catenella>, 

 Whedon and Kofoid. PhD, Northwestern, 19U7 • 



WATER QUALITY 



GAULER, JOHN V„ The use of bentonite in water clarification. 

 PhD, Iowa, 1937- 



MORGAN, MONT F. Ion equilibria in soils and drainage waters 

 as influenced by nitrogenous fertilization. PhD, Ohio, 1935. 



HYDROLOGY 



(See also ECOLOGY , Roelofs) 



COBLENTZ, JACOB MICHAEL. Some characteristics of bacteria from 

 surface water supplies. PhD, Iowa State, 19)42. 



COLEMAN, EDWARD ABENHEIM. Interrelations of soil and water during 

 infiltration. PhD, Calif., 19U2. 



DOBBINS, WILLIAM EARL. Study of the effect of turbulence on 

 sedimentation. PhD, Mass. Tech., 19U2. 



HICKOX, GEORGE H. Evaporation from a limited free water surface. 

 PhD, California, 19i|0. 



HSIA, CHEN HUAN. A study of transportation of fine sediments by 

 flowing water. PhD, Iowa, 19hh> 



MCNOWN, JOHN STEPHENSON. A study of fluid turbulence and sand 

 transportation caused by the flow of water in an open channel. PhD, 

 Minnesota, 19h2. 



TU, YUM CHENGo Transportation of sediment by flowing water. PhD, 

 Iowa, 193U. 



VANONI, VITO AUGUST. Experiments on the transportation of suspended 

 sediment by water. PhD, California Tech., 19U0. 



29 



