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109 



" The general opinion, that it never ap- 

 pears until the middle of April, is a mis- 

 taken one ; the reason that induces me to 

 trouble you with this digression is to remove 

 the error, by stating a circumstance that I 

 have met with. On the eighth of March, 

 \when sitting by the side of a stream to re- 

 pair my line, I observed a Stone fly crawl- 

 ing on the gravel: the appearance of a 

 stranger so unexpected (in a cold day) ex- 

 cited my curiosity so far as to make a trial 

 of an artificial one ; the result of which was 

 very great diversion from half-past eleven 

 till one, when the Trout ceased rising to it. 

 It was on a deep slow stream that is gene- 

 rally tinged with turbury water : but I never 

 have found so much success with it upon 

 rapid streams so early in the season." 



This fly is the largest of the representa- 

 tions given, being an inch in length, and 

 large in the body. The wings, which are 



