REPORT OF COMMISSIONER OF FISH A.ND FISHERIES. XXYII 
here for distribution. Three cars, which were built expressly for the 
purpose, are engaged in transporting fish and eggs to and from this’ 
station. The steamer Fish Hatch and the launch Blue Wing are occu- 
pied part of the time in bringing supjfiies of various kinds, including 
fish and eggs, to Washington for the Central Station. The building is 
also the depot into which come all the natural-history collections and 
records of physical investigations made by the schooner Grampus and 
the steamers Fish Hatch and Aibatross. 
At this station will be found illustrations of fish- culture and fishery 
methods, together with the appliances and results of scientific inquiry. 
This is supplementary to the exhaustive permanent exhibit of the 
TJ. S. Fish Commission in the Fisheries Department of the National Mu- 
seum. Fish-cultural work is shown by the actual hatching of several 
species, by models of apparatus now in use and formerly employed, 
and by means of photographs. The appliances and methods of the 
fisheries and of the scientific inquiry are at present illustrated chiefly 
by means of photographs ; but it is the intention to develop these fea- 
tures as rapidly and fully as possible. For the investigation and illus- 
tration of scientific and fisli-cultural problems, and for the gratifica- 
tion of visitors, the aquaria have become an invaluable resource. Their 
future utilization for experiment and observation promises most valua- 
ble results. 
During the present fiscal year the following adult fish, fry, and eggs 
have been distributed through this station: 
Fingerlings : 
German carp 190, 928 
Goldfish 7,440 
Golden ide 7 
Tench 1, 532 
Spotted, cattish 301 
Garfish 37 
Black bass* 20 
Rock bass 1,174 
Rainbow trout 10, 160 
Fingerlings : 
Brook trout 125 
Fry: 
Shad 23,404,000 
Wliltefish 4, 595, 000 
Lake trout 38, 000 
Brook trout 21, 000 
Landlocked salmon 28, 600 
Eggs : 
Shad eggs 11, 097, 000 
Two heavy freshets in the Potomac Biver in 1889 greatly reduced 
the fish supply. 
Extensive improvements were made in the hatching facilities of the 
station, including an increased water supply, permanent aerating ap- 
paratus, enlargement of the machine room and storage quarters, and, in 
general, bringing the station to a point of efficiency not excelled by 
any other. 
Aquaria . — In October a small grotto was constructed in the doorway 
at the western end of the building; this contained 16 running feet of 
glass frontage. For some weeks marine fishes were successfully main- 
tained by means of air circulation. Immediately thereafter a similar 
grotto for fresh water species was constructed in a doorway on the 
south side, and finally in January an annex for marine species the full 
