DesserT FoR Satmon AND TRovt. 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 Encyclopedia Britannica, and a few comments on 
them, I shall dismiss the subject of the viston in fishes: 
“Tt 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-winoep Insgors, 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. Tlorned 
Corydalis. 6.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 
