66 FISHERMEN'S WEATHER 



In considering the part played by light, 

 it is necessary to take into account the 

 colour of the water and the range of 

 vision in fishes. 



Effect on Most fishermen, and those particularly 



the water w ^ nave sought their sport on lakes, 

 must at times have noticed strange and 

 even inexplicable tints in the water, which 

 may be perfectly clear and not discoloured 

 with peat or any other familiar substance. 

 That these hues, blue or black, are directly 

 responsible for bad sport is improbable. 

 They must be regarded rather, as Mr. Earl 

 Hodgson would say, as symptomatic of 

 some condition, or set of conditions, un- 

 determined, but realised as prejudicial. 

 General Dalton recalls that in all his 

 salmon fishing in both Canada and Nor- 

 way he never liked " a black look in the 

 water, which sometimes results from 

 special atmospheric conditions. Often 

 when thunder is imminent, or in stormy 

 and unsettled weather, one gets the water 

 in an unsatisfactory black state." 



This blackness is not a question of 



