270 SALM02SIA. [ninth day. 



naturalise the spiegelkarpfen and silurus ; and I see 

 no reason why the perca lucio perca and zingel should 

 not succeed in some of our clear lakes and ponds, 

 which abound in coarse fish. The new Zoological 

 Society, I hope, will attempt something of this kind ; 

 and it will be a better object than introducing birds 

 and beasts of prey — though I have no objection to 

 any sources of rational amusement or philosophical 

 curiosity. 



POIET. — A fish dinner such as you have just 

 described, combined with one such as we have en- 

 joyed to-day, might, I think, be made an interesting 

 experimental lecture on natural history. The analogies 

 of the different species and genera of fishes, so distinct 

 in the form of their organs, are likewise marked in 

 the appearance and taste of their flesh. The salmon 

 and the charr may be regarded as the generic types 

 of the salmo. By trout, which have sometimes red 

 and sometimes white flesh, they are connected with 

 the grayling and hucho. By the grayling the trout 

 is connected with the laveret, and by the laveret the 

 genus salmo is connected with the carp genus. The 

 charr is immediately connected with the grayling and 

 laveret by the umbla. By the sea trout the salmon 

 is connected with the trout ; and by the hucho, with 

 the pike and perch families. 



HAL. — AVe will arrange a dinner of this kind in 



