The Char. 
469 
very young state. I have known thousands destroyed 
by the overflowing of a river, as well old as young. The 
cause of all our rivers falling off in the quantity of fish, 
is from the increasing impurity of the water, as fish 
especially require pure water. 
The above interesting notice of the Trout has been communicated to 
the publisher by Mr. Boccius, who devotes himself professionally to the 
increase offish in rivers and ponds, and has performed marvels. 
THE CHAK, OK ALPINE * TROUT, 
(Salmo salvelinus,) 
Is not unlike the trout ; the scales are very small ; the 
colour of the body marked with numerous spots and 
points of black, red, and silver, mixed with yellow, and 
without a circle ; the back tinged with olive-green ; the 
belly white, the snout bluish. Alf the fins, except 
those of the back, are reddish, and the adipose one is red 
on its edge. This fish is about twelve inches in length, 
and is esteemed very delicate as an article of food, espe- 
cially by the Italians. It is abundant in the Lago di 
Garda, near Venice ; and is also found, not only in our 
northern lakes in Westmoreland and Scotland, but also 
in the large sheets of water at the foot of the mountains 
in Lapland. The potted Char enjoys a high and de- 
served reputation in several parts of the Continent, as 
