28 COMMEECIAL FISHERIES OF ALASKA IN 1905. 



Output of the Salmon Hatcheries of Alaska, 1893 to 1906 — Continued. 



a Many eggs frozen. 

 b No run of fish. 



c Hatchery was not used, the eggs being hatched out in the lake. 

 d No report. 

 « Not operated. 



/As the take of eggs for 1905-6 had not been hatched when this report was prepared, the number 

 of fry had to be estimated. 



FERTILIZER PLANTS. 



As noted elsewhere, the Alaska Oil and Guano Company has oper- 

 ated a herring fertilizer plant at Killisnoo for some years. During 

 1905 the Alaska Fish and Development Company, at Pleasant Bay, 

 built a small fertilizer plant in an old hulk, which can be moved from 

 place to place as desired. The company expects, when the plant is 

 working, to utilize the salmon and herring ofTal from its saltery. 



The Pacific Coast and Norway Packing Company also put in a small 

 fertilizer plant in connection with its salmon cannery at Tonka in 

 1905. The plant cost about S3, 500 and will have a capacity of 12 

 tons daily. The intention is to use the waste product of the can- 

 nery, and as the noxious gases which make a fertilizer plant so offen- 

 sive are piped off into the furnace and there consumed it has been 

 possible to build the plant immediately alongside the cannery build- 

 ing. The manager of the cannery estimates that when reduced a ton 

 of salmon offal will make from 400 to 500 pounds of fertilizer and 

 150 pounds (about 20 gallons) of oil. 



