sion ; Richard Rathbun, of the U. S. Commission ; Hon. C. V. 

 Osborn, James C. Hofer, John H. Law and A. C. WiHiams, of 

 the Ohio Commission ; Hon. J. J. Stranahan, of Chagrin Falls, 

 O. ; and Daniel H. Fitzhugh, of Bay City, Mich. 



An invitation to visit the Lake St. Clair Fishing and Shoot- 

 ing Club was tendered by its president, Mr. W. C. Colburn, 

 and accepted for Wednesday afternoon. The Society then 

 adjourned until 2 P. M. and visited the white-fish hatchery of the 

 Michigan Commission, in the city, where several millions of 

 the eggs of the pike-perch were to be seen in the jars, and some 

 trout and adult grayling were shown in aquaria, the whitefish 

 season being passed. 



On assembling in the afternoon the following paper was 

 read : 



THE DISTRIBUTION OF FRESH-WATER FISHES. 



BY PROF. DAVID STARR JORDAN. 



When I was a boy and went fishing in the brooks of west- 

 ern New York, I noticed that the different streams did not 

 always have the same kinds of fishes in them. Two streams in 

 particular in Wyoming County, not far from my father's farm, 

 engaged in this respect my special attention. Their sources 

 are not far apart, and they flow in opposite directions, on oppo- 

 site sides of a low ridge — an old glacial moraine, something 

 more than a mile across. The Oatka creek flows northward 

 from this ridge, while the East Coy runs toward the southeast 

 on the other side of it, both flowing ultimately into the same 

 river, the Genesee. 



It does not require a very careful observer to see that in 

 these two streams the fishes are not quite the same. The 

 streams themselves are similar enough. In each the waters are 

 clear and fed by springs. Each flows over gravel and clay, 

 through alluvial meadows, in many windings, and with elms and 

 alders " in all its elbows." In both streams we were sure of 

 finding trout {Salveliniis fontinalis Mitchill), and in one of them 

 the trout are still abundant. In both we used to catch the 



