19 



temperature ; the second, mainly one of 

 light. A high temperature is as a rule 

 the one which makes trout feed by bring- 

 ing up a hatch of fly, yet so experienced a 

 dry-fly fisherman as Mr. Sydney Buxton 

 has observed that a cold day sometimes 

 produces the heaviest and strongest hatch, 

 so that, even in the choice of temperature, 

 tastes will vary in accordance with in- 

 dividual experience. A low temperature 

 may indirectly enhance the value of the 

 fisherman's bait in another manner, by 

 either killing or driving elsewhere the 

 natural food of the fish. A case in point 

 is mentioned by Mr. Wheeley, who attri- 

 butes much of his success with Thames 

 trout in weirs during a bitter spell of east 

 wind to the cold having driven the bleak 

 out of such spots, and consequently leav- 

 ing the famished trout ravenous for the 

 bleak used by the angler as bait. 



With regard to those fish which do not Cold-weather 



ft \t 



depend for their food on a hatch of fly, it 

 is a matter of opinion whether they feed 

 better in a high or low temperature. A 



