26 THE HABITS AND HAUNTS OF FISH. 



deepest water, near the bottom of which they lie, 

 where the heat is less felt. We believe this to be the 

 main secret as to the suitable water and locality for 

 these fish, as in these days of artificial propagation 

 and experimental ventures in the transportation of 

 fish, it has been often observed that when the water 

 is not adapted for the peculiarities of this fish, they 

 have invariably descended at the approach of warm 

 weather, never to reascend. There are many waters 

 that do not at present contain grayling, that are per- 

 fectly adapted to their peculiarities. Streams having 

 lime spring sources are found to be particularly 

 suited to these delicate fish. In the Canadian lakes 

 the trout lie, whenever the weather is oppressive, in 

 masses near the cool springs, especially when these 

 are situated at the bottom of the water. Grayling in 

 this country are found to flourish in similar situations, 

 but in more genial climes they cannot be preserved, 

 being a northern fish. In early autumn they leave 

 the still deeps and congregate upon the lower run- 

 ning streams, where the water is from three to four 

 feet deep. Here, in the wake of piles encumbered 

 with sticks, etc., they sport in company, and are to be 

 allured by fancy artificials, even when there are no 

 flies on the water At this period they afford really 

 excellent sport when fished for by the sunk fly, as 

 well as by the other methods of angling for them, 

 described elsewhere. As the year advances the 

 vitality and vigour of the grayling increases, and by 

 the time the sharp frosts of winter set in, whenever 

 the water is in fit condition, they afford exceptionally 



