Swenson, W.A. 1975. Influence of turbidity on fish abundance in western 

 Lake Superior. Progress Report for U.S. Environmental Protection 

 Agency, Project no. R-802455-02. 



Sydor, M. 1975. Turbidity in extreme western Lake Superior. Unpub- 

 lished report. 



U.S. Court of Appeals, Eighth Circuit, Reserve Mining Company, at al., vs, 

 United States of America, tt al. No. 74-1291, June 4, 1974. 



Upper Lakes Reference Group. 1977. The water of Lake Huron and Lake 

 Superior, Vol. Ill (Part B), Lake Superior. Report to the Inter- 

 national Joint Commission. 



140 



