^o Sweden. 



the average value of the salmon at \l. for the four bushels. I do 

 not exactly know how far the sea salmon run up the great Tornea 

 river, but I think as far at least as Munro. According' to Widigren, 

 the bed of the Lulea river consists of sandstone and clay, without 

 any vegetation only in two places are to be found one species of 

 pond weed (Potomogeton gramineus), and the banks are lined with 

 different species of willow and hedge, which are of very little 

 advantage for the spawning of any of the members of the carp 

 genus, because it is only at very high tides that they are under 

 water, and on this account but few of our commoner species of white 

 fish are met with in the Lap rivers, especially far up. The medium 

 temperature of Lake Saggat, near Quick iock, mostly may be taken 

 at about 50 Fahr. in an ordinary season. The stream is filled with 

 falls and still water ; the depth is considerable, and but very few 

 different species of Crustacea, except Entomostraca, Porcellamdce and 

 Lernece are met with j but these, however, abound in such quanti- 

 ties, that these streams are peculiarly rich in all the species of 

 salmon and gwynniad. Jn the great Tornea river the inferior 

 water animals are met with in prodigious quantities, affording even 

 a readier supply of food for the fish. The temperature of the 

 water in the Tornea river is considerably higher than in the Lulea 

 river, and this may probably be accounted for by the fact of the 

 springs in the Tornea river being lower than in the Lulea river, and 

 that the Lulea is much the deepest. The consequence of this is 

 that the supply of fish in the Tornea river is double that in the 

 Lulea river. 



Although the individuals of each may be numerous, not a very 

 great many species of fish are met with in the Lap rivers running 

 into the Bothnia, and at their outlets. Widigren's list includes the 

 perch, the ruffe, the pike-perch, four species of bullhead, two species 

 of stickleback (G. aculeatus, Lin., and G. Pungit'ms, L.), the vivi- 

 parous blenny, the dobule roach (C. Erislagine, L.), stamher, which 

 goes up the Tornea river as far as Munco, but not far up the Lulea 

 river j the ide, the roach, the minnow, the winnow (C.vinelia, L.), 

 the bream, the bleak, the pike, the salmon, the bull-trout, the 



