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

 Fish and Wildlife Service, Arnie J. Suomela, Commissioner 



EFFECT OF FIELD POLARITY IN GUIDING SALMON FINGERLINGS 



BY ELECTRICITY 



by 



H. William Newman 



Fishery Research Biologist 



Bureau of Commercial Fisheries 



United States Fish and Wildlife Service 

 Special Scientific Report — Fisheries No. 319 



Washington, D. C. 

 September 1959 



