52 REPORT OF COMMISSIONER OF FISH AND FISHERIES. 
1889-90. 
In December, 1889, 100,000 quinnat salmon eggs were received from 
Baird Station. These were developed in universal hatching jars and 
hatched from January 5 to 25,1890. The fry commenced feeding in 
February, and were transferred in March to ponds, in which they 
remained till the end of June, when the water temperature becoming 
‘ather high they were released in Trinity River. They were about 4 
inches long and were 90,000 in mumber. 
High water in Trinity River prevented the establishment of the pro- 
posed barrier dam in advance of the upward movement of the spring 
run of salmon, consequently no eges were derived from this source. 
1890-91. 
Dams and traps for stopping ald capturing the salmon and trout 
were constructed both in the Trinity and Redwood rivers. On the 
latter stream at Redwood, a point 13 miles distant from Fort Gaston, 
an auxiliary station was established. 
The collecting of the eggs of the quinnat and steelhead salmon was 
begun in November, 1889, and continued three months. A dry season 
caused low water inthe streams, and but a comparatively small nuimn- 
ber of fish ascended to the usual spawning-grounds. At Fort Gaston 
there were secured 45,000 eggs, producing 40,000 fry, 30,000 of which 
were liberated in Supply Creek, a tributary of Trinity River, and 10,000 
retained for rearing. These latter were liberated subsequent to June 
30, 1891. Atthe auxiliary station at Redwood 30,000 salmon eggs were 
collected, and produced about 25,000 fry, which, at the age of 1 month, 
were released in Minor Creek, a tributary of Redwood River, where 
they remained in schools for some weeks. 
During the development of the eggs the temperature of the water 
was 38° to 45°, and the period of incubation fifty-seven days. 
There were three new rearing ponds constructed. In one of these 
about 200 breeding rainbow trout were held till after June 30, 1891. 
A water supply independent of that of the military reservation was 
obtained by means of a trench which was constructed along the moun- 
tain side over a distance of about a fourth of a mile. 
CLACKAMAS STATION OREGON (WALDO T°, HUBBARD, SUPERINTENDENT). 
1889-90. 
By July 1, 1889, many quinnat salmon had collected below the ob- 
structing dam across Clackamas River. 
The station was visited by the Commissioner September 5, 1889, when 
it was decided to purchase a steam pumping plant rather than attempt 
to rebuild the reservoir dam on Cedar Creek. Pending the introduce- 
tion of the pumping machinery, which was in operating condition by 
