74 American Fisheries Society 



needed is congressional authority for an interstate waterways 

 commission of scientific men capable of passing on the question 

 of pollution. 



The Difference Between Steel-head and Rainbow Trouts. 

 By Mr. W. M. Keil, of Tuxedo Park, N. Y. 



In the absence of Mr. Keil his paper was read by title, but a 

 series of drawings and X-ray photographs was shown. 



The following papers were also read by title: 



Trout Fishing near Winona and Manner of Stocking Streams. 

 By Mr. Earl Simpson, Winona, Minn. 



Fisheries in the Mississippi Valley. 



By Mr. D. C. Booth, of Homer, Minn. 



Fisheries of the Upper Mississippi. 



By Mr. M.N. Lipinski, of Winona, Minn. 



Mr. Austin F. Shira, Director of the Fairport Biological Station 

 of the U. S. Bureau of Fisheries, was then called upon for his 

 paper on Fish Cultural Activities of the Fairport Biological Station. 

 (This appears in the Transactions for December, 1917, Vol. 

 XLYII, No. 1, pp. 39-44.) 



The morning session was then adjourned. 



Friday Afternoon Session, August 31st. 



Mr. Geo. A. Lawyer, of Washington, D. C, moved that the 

 chair appoint a committee to formulate a statement of the essential 

 principles relative to the conservation of fisheries resources. The 

 motion was seconded and carried. 



Experiments on the Re-stocking of Devils Lake, N. Dak. 

 By Mr. Alfred Eastgate, St. John, N. Dak. 



