POLLUTION - Continued 



WILSON, Philip Johnson. Purification of an industrial waste by 

 electrolysis, PhD, Pittsburgh, 19U1. 



POPULATION 



(See also GAIE FISH , Scott) 



LEWIS, y/illiam M. Fish population studies on two Iowa reservoirs, 

 PhD, Iowa State, 19U9- 



MCHUGH, John L. Variations and populations in the clupeoid fishes 

 of the North Pacific, PhD, California, Los Angeles, 19^0. 



NEE33, John C, A contribution to aquatic population dynamics. 

 PhD, Wisconsin, 19U9. 



3CHAEFER, Milner B. Study of the spawning populations of sockeye 

 salmon in the Harrison River system, with special reference to the 

 problem of enumeration by means of marked members . PhD, Washington, 

 19^1. 



SCOTT, William B. The Lake Erie cisco (Leucichthys artedi) 

 population. PhD, Toronto, 19^0. 



SLOBODKIN, Lawrence B. Population dynamics of Daphnia obtusa 

 Kurz. PhD, Yale, 1951. 



3PRUGEL, George, A critical scale study of two populations of 

 blueglll and green sunfish. PhD, Iowa State, 195l. 



SEAFOOD POISONS 



MOLD, James D. The isolation and Identification of the toxic 

 principle of the sea mussel, ^ytilus calif ornianus , Conrad. PhD, 

 Northwestern, 15i4.7. 



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

 accompanying bases found in the sea mussel, %tilus calif ornianus , 

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

 bases found in the marine plankton organism, Gonyaulax catenalla , 

 Whedon and Kofoid. PhD, Northwestern, 19h7 • 



33 



