YDERNESS OP THK GKAYLING OVA. 



your cattle, at their being in poor condition, eating each 

 other's tails off, or even at their dying out. Grayling do 

 not eat trout fry, or but a very few of them, but trout do 

 devour grayling fry ; BO I am inclined to give the balance 

 of destruction in reality to the trout, which is without 

 exception the most voracious and omnivorous of all fish. 

 Grayling are not so easy to transplant from one river to 

 another as trout, as the ova are much more tender than 

 those of trout, and if the weather should happen to set in 

 warm in April and May, they become very difficult to 

 hatch and rear, and very liable to die off wholesale. In 

 rivers where these do take, however, they soon thrive and 

 make their way rapidly, often in a few years outnumbering 

 the trout which may have tenanted the river before 

 them. 



