294 SALMONIA. 



turn made acquainted by diurnal habit with 

 the artificial fly, and either taken or rendered 

 cautious ; so that, in a river fished much by 

 one or two good anglers, many fish cannot be 

 caught, except under peculiar circumstances of 

 very windy, rainy, or cloudy weather, when 

 many flies come on ; or at night, or at the time 

 the water is slightly coloured by a flood, or 

 when fish change their haunts in consequence 

 of a great inundation. In the Usk, in Mon- 

 mouthshire, when it was very full of fish in 

 the best fishing time, when the spring brown 

 and dun flies were on the water, it was not 

 usual for some excellent anglers, who composed 

 a party of nine, and who fished in this river 

 for ten continuous days, to catch more than 

 two or three fish each person. But one day, 

 when the water was coloured by a flood, in 

 which case the artificial fly could not be dis- 

 tinguished by the fish from the natural fly, I 

 caught twelve or fourteen of the same fish, that 

 had been in the habit of refusing my flies for 

 many days successively. This was in the end 

 of March, 1809, when the flies always came on 

 the water with great regularity ; the blues in 

 dark days, the browns in bright days, between 



