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



Fish and Wildlife Service 



TOXICITY OF 4,346 CHEMICALS TO LARVAL 

 LAMPREYS AND FISHES 



By 



Vernon C. Applegate, John H. Howell, A. E. Hall, Jr. 



Fishery Research Biologists 



Great Lances Fishery Investigations 



U.S. Fish and Wildlife Service 



and 



Manning A . Smith 



Professor of Chemistry 



BucKnell University 



Special Scientific Report- -Fisheries No. 207 



Washington, D.C. 

 March 1957 



