304 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
jector decided that hiss means would not permit him to continue the work unless some 
return was made. 
From its first inception it was determined that, in order to obtain the best results, 
only the most desirable species should be admitted to the lake, and that all enemies 
must be removed and excluded. In order to carry this into effect dams were built 
across the stream with racks below them, as shown in the sketch, at a point about 100 
yards from salt water, where an islet divides the stream into two parts. The dam and 
fence on the western side of the islet allow nothing to pass. The fence on the eastern 
side has a trap opening, admitting fish to the foot of the dam. Here the redtish and 
cohoes are lifted bv dip nets to the pool above, from which point they can ascend 
quickly to the lake. Nothing can enter the lake which is not passed over the dam by 
hand. The humpbacks, dog salmon, Dolly Varden trout, and all enemies, are carefully 
excluded, and the lake is therefore free of undesirable and predatory species. The 
lake has been carefully fished, and all enemies to the fry, sucn as cut-throats and 
other trout, sticklebacks, bullheads, sculpins. etc., have been removed, so that it is 
comparatively clear of enemies. 
The hatchery is located on the northern side of the lake, about three-eighths 
mile from the head of the outlet, and midway between a series of 11 springs and 
feeders, the extreme distance being less than one-fourth mile from the main building. 
The hatching-house stands on the border of the lake, partly over a small feeder, and 
back of it is a substantial and comfortable log dwelling, 20 feet by 36 feet. Strung 
along the lake are two houses for the hatchery hands, each 12 feet by 16 feet, a smoke- 
house for smoking the stripped fish, and a tool-house. The original cost of the plant, 
and all expenses connected with it to date (September, 1900), amount to $16,000. 
The hatchery usually opens July 1, when preparations are begun for the season; 
stripping generally commences September 1; the place is closed about March 1. 
The hatchery building is 75 feet long, east and west, by 11 feet in width; south 
wall 11 feet high, north wall 6 feet high; shed roof, with windows on the south side 
only; on the east end is an open shed annex, 18 feet by 11 feet. 
The troughs are 16 feet by 134 inches by 51. inches, inside measurement, made of 
planed lumber, 11-inch bottom, 11-inch sides, covered with asphalt varnish. In the 
main building are 2 lines of troughs arranged in pairs, with 8 troughs in a line, 
making a total of 16, arranged with a passage around the lines as shown in the 
sketch. Each pair of troughs has a drop of 1 inch in its length, with a fall of 4 
inches to the next. The first compartment in each trough is 8 inches in length, and 
receives and aerates the water; then come 7 basket divisions, each 24 inches long, 
separated by the Williamson system of division plates, 2 inches apart; the last space 
is 4 inches. The annex will accommodate 4 troughs, but it has seldom been used. 
The baskets are of the usual wire webbing, five-eighths inch by one-sixth inch for 
redfish eggs, and five-eighths inch by one-fifth inch for cohoes, and are 231 inches by 
121 inches by 41 inches, and have no wooden rims. They are supported an inch from 
the bottom of the trough by broad-headed nails and tin clips. All are well lacquered. 
A full basket contains 60,000 redfish eggs, or 30,000 to 35,000 coho eggs. The capacity 
of the hatchery is therefore 6,720,000 redfish eggs, and the annex 1,680,000 of the 
same species, but it is doubted if the latter can be regarded as a reliable factor in 
estimating the capacity. 
