REPORT 0¥ TEE COMMISSIONER OF FISHERIES. 29 



Springs, W. Vii. ; Wytheville, Va.; Cold Springs, Ga. ; Erwin, Tenn., 

 and to a small extent at St. Jolinsbury, Vt., the waters at all of these 

 points having proved congenial. At some of these stations the large- 

 mouth black bass also was propagated, and at the San Marcos, Cold 

 Springs, Wytheville, and Northville stations the output of both 

 species exceeded that of any previous year. The Tupelo, Miss., 

 station has not yet been completed, but sufficient ponds were con- 

 structed to allow of the production and distribution of 13,500 

 fingerling bass of the large-mouthed species. 



The propagation of the eastern brook trout, black-spotted trout, and 

 rainbow trout was conducted on the same lines as lieretofore, the out- 

 put exceeding that of past years. In this connection the stations at 

 Leadville, Colo., and Speartish, S. Dak., are worthy of special men- 

 tion, the product of each being far in excess of that of Ruy previous 

 year. 



The usual exhibit of fish and other aquatic animals was maintained in 

 the Central Station aquarium, at Washington, D. C. , and, although small, 

 continued to be attractive to a large number of visitors daily. In addi- 

 tion, the hatching of shad and various species of trout was conducted 

 on a small scale for exhibition purposes. 



ACCLIMATIZATION OF FISH. 



The waters in the Black Hills of South Dakota Avere originally 

 devoid of trout, but thev now afford a source for the collection of eggs 

 and contribute to the output of the Spearfish station, though the bulk 

 of the black-spotted trout produced at this station is derived from eggs 

 taken at a subsidiarv station in Yellow^stone Park. The waters of 

 Colorado furnish another illustration of the successful acclimatization 

 of tish, in the fact that the eastern l)rook trout has become so firmly 

 established there that it is now possible to collect more eggs of this 

 species from the natural streams and ponds at the subsidiaries con- 

 nected with the Leadville station tlum arc collected from any station 

 in the east, where the fish is native. 



The demand for rainbow trout has exceeded the supply in some 

 parts of the country where its introduction has been especially success- 

 ful. It is frecjuently called for by applicants who want it because it 

 is different from the native species, and it is a favorite for acclimati- 

 zation in foreign lands. Not far from Paris, France, is a large com- 

 mercial hatchery devoted entirely to the propagation of rainbow trout, 

 the annual product being 100,000 fish of market size, besides the sale 

 of eggs and alevins for stocking preserves. In some states the accli- 

 matization has not been successful, and this is particularly true of the 

 Avaters of New England, where many plants have been made and have 

 residted in the production of only a few adult fish. With the excep- 

 tion of some lakes in Massachusetts, it is not known that the rainbow 



