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

 Fish and Wildlife Service, Arnie J. Suoraela, Cominissioner 



BIOLOGY OF CHINOOK AND BLUEBACK SALMON AND STEELHEAD 

 IN THE WENATCHEE RIVER SYSTEM 



by 



Robert R. French amd Roy J. Wahle 

 Fishery Research Biologists 

 Bureau of Commercial Fisheries 



United States Fish and Wildlife Service 

 Special Scientific Report — Fisheries No. 304 



Washington, D. C. 

 June 1959 



