VALUES 



~l3ee LIMOLOGY5 Eschmeyer) 



WATER QUALITY 



(See also ECOLOGY , Wallen) 



GAULERj John Vo The use of bentonite in water clarification, 

 PhD J Iowa, 1937 « 



MORGAN, Mont F, Ion equilibria in soils and drainage waters as 

 influenced by nitrogenous fertilization,, PhD, Ohio, 1935» 



STEVENSON, James H= Physico-chemical aspects of clay turbidity 

 with special reference to clarification and productivity of impounded 

 waters c PhD, Oklahoma A, and M. j, 1950o 



37 



