16 REPORT OF THE COMMISSIONER OF FISHERIES. 
amounted to 3,558,591 blueback salmon, 19,913 chinook salmon, 198,- 
966 silver salmon, and 10,598 steelhead trout. An outside battery 
of troughs with a capacity for 20,000,000 eggs was constructed and 
supplied with water through a flume from a spring-fed stream in the 
vicinity. A small three-room cottage with unfinished interior was 
provided for the foreman in charge, and at the close of the year 
preparations were being made for the extension of the hatching 
facilities. 
Increased efforts and generally favorable climatic conditions pre- 
vailing in Oregon resulted in substantial gains in the output from 
the nine stations operated in that State. The total egg collections 
of all species numbered 70,392,674, while the distributions of chinook 
salmon, silver salmon, and steelhead trout exceeded that of last 
vear. An enormous run of chinook salmon in Columbia River, which 
characterized the season of 1913, again made its appearance in the 
river in the summer and fall of 1914 at the stations on the Big White 
Salmon and Little White Salmon Rivers, and 47,695,000 eggs were 
obtained, or 3,466,000 in excess of last year’s take at the same points. 
The handling of this large number of eggs necessitated the installa- 
tion of additional hatching equipment and the shipment of large 
consignments of eggs to other stations for development. Eggs of 
the spring run chinook salmon to the number of 3,718,000, 
which were donated by the Oregon State Fish Commission, were 
_ hatched at the Clackamas station, and the fry, reared to the finger- 
ling stage, were planted in Clackamas River, with a view of im- 
proving the spring run of salmon in that basin. To facilitate the 
rearing of salmon, a battery of seven cement ponds were constructed 
at the Clackamas station. 
Floods occcurring during the operating season destroyed the 
racks at the Upper Clackamas and Rogue River stations, curtailing 
the output of chinook salmon and steelhead trout in those fields. 
Gains were made in the distribution of silver salmon where this 
species was propagated. 
While low water and unfavorable weather conditions somewhat 
interfered with the movements of the fish, there was a large increase 
in the egg collections at all of the California stations, amounting 
to 38 per cent in the chinook salmon, 29 per cent in silver salmon, 
and 400 per cent in rainbow trout. The total collections of all species 
were 57,807,200, more than double those of the previous year, while 
the distributions of eyed eggs, fry and fingerling fish were corre- 
spondingly large. In addition to 5,000,000 chinook salmon fry, 
9,053,635 fingerling fish of this species were liberated in local waters, 
or more than double the number produced last year. 
The largest gains were made at the Battle Creek and Mill Creek 
stations, where the aggregate egg collections numbered considerably 
over 25,000,000. The summer and fall run of salmon in the McCloud 
River was light, although the output of the Baird station slightly 
exceeded that of last year. At the Hornbrook station the take of 
rainbow trout eggs exceeded expectations, being more than 2,600,000. 
As in former years, the egg collections exceeded the hatching capac- 
ity of the Bureau’s stations and the surplus was turned over to the 
State hatcheries for development. 
In order to facilitate the handling of spawning salmon and im- 
prove the water supply, the Hornbrook hatchery was moved to the 
