GRAYLING. 173 



Given, however, a stream containing trout Advantages 

 and no grayling, what are the advantages auction of" 

 and what the disadvantages to be anticipated s rjl y in g- 

 from their introduction? The first and most 

 obvious advantage is the extension of the 

 fly-fishing season. From early April to the 

 end of May is the full extent of time during 

 which there is any reasonable probability 

 of a good rise of trout at small fly in 

 daylight. June, where there is May Fly on the 

 water, may be added to this. In July and 

 August there is a chance of an evening rise, 

 and in some rivers, especially the late spawning 

 ones, the month of September is fairly good, 

 during the day as well as the evening. 



In respect to September fishing there is, how- 

 ever, the unfortunate circumstance to be con- 

 sidered that by far the majority of trout killed 

 are females in which the eggs are developed to 

 a certain degree, and the general condition of 

 the fish has proportionately deteriorated. This 

 accounts partly for the fact that in most streams 

 where fishermen congregate the male fish largely 

 preponderate, rendering it expedient to kill 

 down males and spare females. When there 

 are grayling in a river they should be protected 

 until the" middle of July, or better still, the 

 commencement of August, but during that 

 and the two succeeding months on most of 



