United States Department of the Interior, Douglas McKay, Secretary 

 Fish and Wildlife Service, John L. Farley, Director 



EXPLORATORY EXPERIMENTS IN GUIDING 

 SALMON FINGERLINGS BY A NARROW D. C, 

 ELECTRIC FIELD 



by 



Parker S . Trefethen 

 Fishery Research Biologist 



Special Scientific Report: Fisheries No. 158 



Washington, D.C. 

 June 1955 



