DESSEET FOE SALMON AND TEOUT. 



31 



of a claret body, brown mallard wing, and tail of the top-knot 

 from the golden pheasant ; or the blue professor, with blue 

 silk body and dark gray wings. 



With the following remarks from a clever writer on an- 

 gling in the Encyclopaedia Britannica, and a few comments on 

 them, I shall dismiss the subject of the vision in fishes: 



" It may be asked upon what principle of imitative art the 

 different varieties of salmon-fly can be supposed to bear the 

 most distant resemblance to any species of dragon-fly, to im- 

 itate which we are frequently told that they are intended ?" 



The reader will please compare the artificial dragon-fly 

 with a true copy of a natural one on the following plate of 

 natural salmon and trout flies : 



AMERICAN NERVE-WINGED INSECTS, natural size. 1. Common Dragon-fly. 2. The Ag- 

 rion Dragon-fly. 3. Day-fly, or May-fly. 4. Grub or larva of the same. 5. Horned 

 Corydalis. G. A Mantispan. 7. The magnified claw of the Mantispan. 



Of the dissimilarity of the artificial lures to the natural 

 ones, the same may be generally said and prove true, whether 



