314 ROD AND RIVER 



with the first fly, is more readily induced to take 

 this smaller, quieter, second edition, than if it had 

 not been previously moved with the larger and 

 gaudier pattern. There is more than mere theory 

 in all this, for it is a well-known fact that certain 

 flies are good changes to each other. Thus, for 

 instance, the Jock Scott and the Silver Doctor 

 form an excellent change. If one fails the other 

 often proves successful. 



There has been much discussion as to whether 

 a bright fly should be used in bright weather and 

 a dull fly in dull weather, or the reverse. My 

 own experience inclines me to the belief that 

 bright flies are more suitable for dull days, and 

 more sombre patterns for bright weather. I have 

 often found that, when the sky becomes suddenly 

 overcast during bright weather, a change to a 

 silver-bodied fly, such as a Silver Doctor or a 

 1 silver gray,' has been worth the trouble. 



I am convinced that better sport is to be 

 secured if small flies are used in low and clear 

 water; and it is a golden rule that when a fish 

 has moved at a fly and refused it, a change should 

 be made to a smaller sized fly, whether it be of a 

 similar or different pattern, some ten minutes' law 

 being always accorded the fish before casting over 

 . it again. 



If a fish comes at the fly and refuses it, after the 

 usual law has been given, it is always more advis- 



