REPORT OF COMMISSIONER OF FISH AND FISHERIES. 



XCI 



eggs, collected being 15,500, obtained in December from the Kidgway 

 Ponds. These hatched with comparatively small loss. 



As there had been numerous calls for lake-trout fry in the liocky 

 Mountain regions, 25,000 eggs were transferred from Dulnth in January 

 and arrived in excellent condition, the loss in hatching amounting to 

 only 200. During June 10,000 fry were shipped, and 1 1,700 remained 

 on hand at the close of the year. 



The following shows the stock of fish and eggs on hand at the close 

 of the year: 



BozEMAX Station, Montana (jAivrES A. Henshall, Superintendent). 



During the fiscal year a number of improvements were made at this 

 station, including the installation of a heating plant in the superintend- 

 ent's residence. The warm spring was raised M feet, so that the water 

 could be tiumed across the creek and used for moderating the temp- 

 erature in the rearing ponds, and 12 new ponds, 10 by 25 feet, were 

 constructed with a complete system of water-supply and waste pipes. 

 In June a freshet carried away the tiunie to the warm-water spring 

 and the south abutment of the bridge, near the main entrance to the 

 grounds. 



Ail of the fish on hand at the beginning of the year were distributed 

 during the summer and fall, the grayling fry being liberated early in 

 July, owing to the great diflBculty experienced in feeding them. 



Arrangements were made the following winter for collecting black- 

 spotted-trout eggs at Henry Lake and grayling eggs at Red Kock, also 

 for the operation of a private hatchery on the ranch of Mr. Burton 

 Vincent, 4 miles from Anaconda, on Warm Spring Creek, 



The Henry Lake station was opened April 3 and operated under the 

 direction of Mr. W. F. Jarvis, flsh-culturist at Bozeman. From the 

 407 ripe trout captured in the lake and in Howard and Meadow creeks 

 615,000 eggs were secured, the fish taken from the lake averaging 1,500 

 eggs each, and those from Meadow Creek 2,400. During May and June 

 507,000 of these eggs were transferred to Bozeman and 50,000 were 

 hatched and planted in Henry Lake. The temperature of the water 

 during the season varied from 43"^ to 57°. On June 27 the station was 

 closed and the apparatus stored for the season. 



The substation at Anaconda is located on the ranch of Mr. Burton 

 Vincent, who has equipped a small hatchery to be operated by the 



