UNITED STATES DEPARTMENT OF THE INTERIOR 

 Stewart L. Udall, Secretary 



Frank P. Briggs, Assistant Secretary for Fish and It ildlife 



FISH AND WILDLIFE SERVICE 

 Clarence F. Pautzke, Commissioner 



BUREAU OF SPORT FISHERIES AND WILDLIFE 

 Daniel II. Janzrn, Director 



Washington, D.C. • May 1961 

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