EFFECT OF TEMPERATURE ON SALMON. 109 



persevere with baits, natural or artificial, you do not 

 succeed. The Trent is a river in which salmon 

 rarely rise at flies. This is not because the water 

 is too deep, as many of the streams are of a depth 

 suitable for raising fish. Salmon in the Trent are 

 taken with artificial bait, but why they decline to 

 take a fly it is difficult to understand. The Usk is 

 the freest rising river I ever fished — even in July 

 and August, when salmon are sulky in ^ilmost every 

 other river — and when the water is in ply, no one 

 need despair of getting sport. But with an east 

 wind in autumn, and such conditions as those 

 mentioned, even on this free-rising river the sport 

 is spoilt, no matter how plentiful the fish may be. 



In his book on "Salmon Problems," Mr, Willis 

 Bund states that " any salmon fisherman would 

 admit that salmon travel more by night than by 

 day." Admitting that a great proportion of fish 

 that ascend our rivers travel by night, I have some- 

 times seen them travel in very low- water when I 

 have been fishinc;'. Mr. Bund states, however, that 



