SUNSHINE 69 



to consider for practical purposes is the 

 range at which a fish can see an object 

 interposed overhead between it and the 

 sun or sky. Even if six inches be the 

 very modest horizon of the salmon under 

 water, it will rise at a fly from the bottom 

 of a pool many times that depth. The 

 effect of an insufficiently or excessively 

 illuminated background may be such as 

 to magnify or reduce its size, distort its 

 shape, and obscure its colouring, the last 

 to such an extent as to render the fish to 

 all intents and purposes colour-blind. 

 Extremes of light may be equally un- 

 favourable to salmon fishing ; for, with an 

 overcast sky and low clouds, the fish either 

 do not, or will not, see the fly, and, on the 

 other hand, given a bright sky, they may 

 see too much. 



The view commonly held as to the Fish dazzled 

 effect of bright light is that it frustrates ys 

 the angler's purpose by betraying himself 

 and his tackle to the fish an opinion that, 

 no doubt, receives support from the 

 success which often under such conditions 



