state Fish Car "Thymallus." 



reserved as a spawning station. The constant tramping along tlae creek 

 and the use of boats in tlie bay, tends to disturb the fish at spawning 

 time and prevent them from going up stream, where we can catch 

 them and secure tlie eggs. 



Improvements 



At Anaconda, during the winter of 1913-1914, forty new cement 

 hatching troughs were constructed, and the water supply pipes changed 

 so as to furnish the water under the closed system. This makes it 

 possible to run the hatchery on about one-half the water formerly used. 

 It also makes the hatchery much more attractive in appearance and 

 quieter in operation. 



A cement aquarium with plate glass sides, was constructed through 

 the center of the building, above the hatching troughs. This is divided 

 into several compartments for the different species of fish. 



It has been kept well supplied with trout, grayling, etc., and has 

 proved very attractive and interesting to the large number of visitors. 



A small whitefish battery was constructed with a capacity for 

 hatching several millions whitefish or grayling eggs. 



The spring was cleaned out and entirely covered over, so that the 

 trouble with algae clogging the hatchery screens, have been practically 

 obviated. 



Thanks are due the Anaconda Copper Mining Company, for the labor 

 assistance in performing the above work, also for road work near 

 entrance of the grounds. 



In the spring of 1914, owing to poison from the leaching of ashes 

 or cinders near the spring, a large part of the fry and eggs on hand 

 at the time, were killed. All the larger ones that survived were im- 



P A G E 



FORTY-SIX 



