52 POPULAR SCIENCE MONTHLY. 



1890, he established himself in a small stream called Jadgeska on 

 the west coast of Etolin Island, tributary to McHenry Inlet, Clar- 

 ence Straits. This stream led from a lake, and in it a few thousand 

 red salmon spawned, besides multitudes of silver salmon, dog salmon 

 and humpback salmon. Making a dam across the stream, he helped 

 the red salmon over it, destroying all the inferior kinds which 

 entered the stream. He also established a hatchery for the red salmon, 

 turning loose many thousand fry each year for about twelve years. 

 This was done in the expectation that all the salmon hatched would 

 return to Jadgeska in about four years. By destroying all individuals 

 of other species attempting to run, it was expected that these would 

 become extinct so far as the stream is concerned. 



The result of this experiment has been disappointment. After 

 twelve years or more there has been no increase of red salmon in the 

 stream, and no decrease of humpbacks and other humbler forms of 

 salmon. Mr. Callbreath draws the conclusion that salmon run at 

 a much greater age than has been supposed — perhaps at the age of 

 sixteen years, instead of four. A far more probable conclusion 

 is that the salmon set free by him have joined other bands bound for 

 more suitable streams. It is indeed claimed that since the estab- 

 lishment of Callbreath 's hatchery on Etolin Island, there has been 

 a notable increase of the salmon run in various streams of Prince 

 of Wales Island on the opposite side of Clarence Straits. But this 

 statement, while largely current among the cannerymen, and not 

 improbable, needs verification. 



We shall await with much interest the return of the millions of 

 young salmon hatched in 1902, and turned loose in Naha stream. We 

 may venture the prophecy that while a large percentage will return 

 to Loring, many others will enter Yes Bay, Karta Bay, Moira Sound 

 and other red salmon waters along the line of their return from 

 Dixon Entrance or the open sea. 



