REPORT OF THE COMMISSIONER OF FISHERIES. 20 
Springs, W. Va.; Wytheville, Va.; Cold Springs, Ga.; Erwin, Tenn., 
and to a small extent at St. Johnsbury, 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 heretofore, the out- 
put exceeding that of past years. In this connection the stations at 
Leadville, Colo., and Spearfish, S. Dak., are worthy of special men- 
tion, the product of each being far in excess of that of any 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 were originally 
devoid of trout, but they 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 subsidiary station in Yellowstone Park. The waters -of 
Colorado furnish another illustration of the successful acclimatization 
of fish, in the fact that the eastern brook 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 than are 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 frequently 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 aceli- 
matization has not been successful, and this is particularly true of the 
waters of New England, where many plants have been made and have 
resulted 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 
