588 U. S. BUREAU OF FISHERIES 
due to an excessive number of barren females among the rainbow 
brood stock. Station records indicate that the temperature of the 
water supply is gradually rising. The barren females and surplus 
males were culled from the brood stock and released in public waters. 
Blackspotted and Loch Leven eggs were received by transfer. The 
State hatchery at Rapid City filled numerous Forest Service applica- 
tions for nearby waters and the Bureau filled State applications for 
the stocking of waters in close proximity to the Spearfish station. 
Two ponds are being completely rebuilt by W. P. A. labor. The 
drainage channel was extended 176 feet to afford a bypass for upper 
ponds to avoid running all waste water through a lower series. The 
roadways were widened and repaired. 
No brood stocks are maintained at the Spokane (Wash.), substation 
and no eggs were collected from wild stock. From eggs received from 
other hatcheries a normal output was obtained. The fish were dis- 
tributed by the Washington Department of Game, chiefly in the 
waters of Spokane and adjacent counties. 
The unit in Mount Rainier National Park collected no eggs this 
year, as the rainbow-trout brood stock were not sufficiently developed 
to spawn. Rainbow, brook, and blackspotted trout were handled. 
Due to the low temperatue of the water supply, very little dry feed 
can be used. Practically the entire production was planted by the 
Park Service in waters of the Mount Rainier National Park. 
The seasonal substation at Baker Lake, Wash., was operated 
from July 1 to September 17. Blackspotted-trout eggs were received 
from the station in Yellowstone National Park, and an excellent 
hatch was secured. Brook- and rainbow-trout fingerlings were 
received by transfer. The Forest Service transported and planted 
practically the entire output within the boundaries of the Mount 
Baker National Forest. In addition to hatchery operations, salmon 
were captured and planted in Baker Lake and its tributaries. The 
Baker River sockeye salmon run appears to be increasing. 
The output of the Clark Fork (Idaho) station was increased more 
than 135 percent over the production for the preceding year. Dolly 
Varden trout were propagated in addition to the four species pre- 
viously handled. The landlocked sockeye salmon and the Dolly 
Varden trout eggs were taken from wild stock trapped on Bull Creek 
and Spring River by the Idaho Fish and Game Department. Ap- 
proximately 1% million trout and salmon were produced. The 
major portion of the distribution was accomplished through coopera- 
tion with the Fish and Game Department of Idaho, and the Forest 
Service. 
NEW ENGLAND TROUT STATIONS 
The Hartsville (Mass.) unit handled brook and rainbow trout and 
two species of pondfish during the year. The first-year spawning 
brook trout produced 118,700 eggs which were supplemented from 
other hatcheries. Rainbow-trout eggs were received from the Lee- 
town (W. Va.) station. Smallmouth black bass fry were collected 
from Wangum Lake, Conn., in cooperation with the Connecticut 
State Board of Fisheries and Game. Adult catfish were trapped 
from Willetts Pond, near New Marlboro, Mass., and distributed to 
applicants or planted in adjacent waters. Six cooperative trout- 
rearing nurseries were furnished trout and periodical inspections were 
