LAC EMMURAILLE 



with keenness brought to the sharpest edge 

 by a pressing need for food, over waters 

 well stocked with free-rising trout, and 

 failed to move a single fish. Very perti- 

 nent is it therefore to record that these at- 

 tempts were made towards the end of June, 

 during the hatch of the may-fly, with both 

 air and water in perfect trim, when not 

 only fontinalis, but all the Salmonidae, are 

 looking out for the natural fly and will 

 show interest in the artificial one. (It will 

 be understood that this time varies with 

 latitude and elevation.) 



In 1913 Michel had committed ten 

 small trout to the lake, but in the following 

 year there was no response from them. The 

 presence of many may-flies upon the sur- 

 face, dead and alive, argued strongly for 

 the absence of fish. Other ephemera and 

 water-insects were numerous and apparent- 

 ly undisturbed. Apart from the bountiful 

 provision of this kind of food, the lake did 

 not commend itself as a home for trout. 

 Not much beyond a third of a mile long, 

 and an eighth of a mile broad, the only 

 shallows, at either end, were of small area. 

 Malloch, in his admirable book on salmon 

 and trout, says of Scottish lochs at sea-level 

 that all water over eleven feet in depth is 



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