United States Department of the Interior, Fred A. Seaton, Secretary 

 Fish and Wildlife Service, Arnie J. Suomela, Commissioner 



LETHAL DOSES OF SEVERAL COMMERCIAL CHEMICALS 

 FOR FINGERLING CHANNEL CATFISH 



by 



Howard P. Clemens 

 University of Oklahoma 



cind 



Kermit E. Sneed 

 University of Oklahoma Research Institute 

 Norman, Oklahoma 



United States Fish and Wildlife Service 

 Special Scientific Report — Fisheries No. 316 



Washington, D. C. 

 September 1959 



