TORE^RD 



This paper is submitted with the objective of providing 

 other fishery investigators with a resume of what has been 

 accomplished in attempting to guide fish by means of subaqueous 

 sonic vibrations. Preliminary studies were made under the 

 direction of J. T, Barnaby, formerly Chief, North Pacific 

 Fishery Investigations: , Dr, George A. Rounsefell was responsible 

 for all early arrangements with the U. So Navy<> Mr. D„ Wo Beecher 

 of the Naval Ordnance Laboratory, i\/hite Oaks^ Maryland, provided 

 acoustical equipment and technical aivice, assisted by Mr. Wo R, 

 Cook. The senior author was enthusiastically aided by Mr. Kingsley 

 Go weber, J^Ir. Ned C. Neal, and Mr. Clifford V. Lalonde in conduct- 

 ing the investigation in the field. Funds for the sonic studies 

 were provided by the U<, S. Corps of Engineers, Portland, Oregon. 



