UNITED STATES DEPARTMENT OF THE INTERIOR, Stewart L. Udall, Secretary 



FISH AND WILDLIFE SERVICE, Clarence F. Pautzke, Commissioner 



Bureau of Commercial Fisheries, Donald L. McKernan, Director 



ESTIMATING RED SALMON ESCAPEMENTS 



BY SAMPLE COUNTS FROM 



OBSERVATION TOWERS 



BY CLARENCE DALE BECKER 





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FISHERY BULLETIN 192 

 From Fishery Bulletin of the Fish and Wildlife Service 

 VOLUME 61 



[Contribution No. 81, College of Fisheries, University of Washington] 



Published by the Fish and Wildlife Service • Washington • 1952 

 Printed at the U.S. Government Printing Office, Washington 



For sale by the Superintendent of Documents, U.S. Government Printing Office 

 Washlnitton 25, D.C. - Price 20 cents 



