OF THE 8ALU0NIDM 3 



Whether this is an' over-sanguine antici- 

 pation of the ultimate results of a brilliant 

 exploit in acclimatisation, the reader will 

 be enabled to judge from the account I 

 propose to give of the introduction of the 

 salmon family into the waters of the 

 southern hemisphere, and the measure of 

 success at present attained. 



Why have not salmon found their way to 

 the other hemisphere without man's inter- 

 vention ? we may reasonably ask. They 

 range in the northern hemisphere between 

 latitude 45° and 76°, though they may pene- 

 trate wherever there is open water to the 

 northward, and the recent Arctic Expedition 

 found a salmonoid permanently estabhshed 

 at 80° N. latitude. Their physical constitu- 

 tion, then, is adapted to cool waters, and 

 the zone of warm water occupying the 

 tropics presents an impassable obstacle to 

 southern migration. Moreover, they would 

 never find, in their journey towards the 

 south, any river the water of which would 

 be low enough in temperature to permit the 

 safe development of the ova, and it is there- 



