50 PISHES. 



prefer a separate river, notwithstanding the mouths 

 ma3^ be ahiiost contiguous. . Every species of 

 salmon dies in the same river or lake in which it 

 is born, and to which it returns to spawn. In 

 the third year, male and female consort together, 

 and the latter deposits its spawn in a hole formed 

 with its tail and fins in the sand. A fish of a 

 year's growth continues near tlie place, guards the 

 spawn, and returns to the sea with the new born 

 fry in November. The salmons of Kamtschatka 

 spawn but once in their lives ; those of Siberia 

 and Europe, the rivers of which are deep, and 

 abound with insect food, are enabled to continue 

 the first great command of nature, frequently du- 

 ring tlie period of their existence. The common 

 salmon of the western uaters spawn, it is said, 

 twice a year ; also the brook trout. Linnseus 

 enumerates between forty and fifty diflerent spe- 

 cies of the salmo. I have reason to believe that 

 there are several in this country. Besides the 

 common salmon, the salmon trout, and the brook 

 trout, there are, 1 think, dilTercnt species of trout 

 in rivers and lakes, which are confounded under 

 the general name of salmon trout and common 

 trout. I have seen two kinds of the common 

 trout which are considered as of the same species 

 but which are specifically distinct. One species 

 generally inhabit streams, although they go into 



