FOREST, LAKE, AND RIVER 



which are not seen on the silvery-toned young. 

 The latter feed in vast schools along the shallow 

 shores upon insect life." 



These insects are evidently May flies, so-called, 

 as these insects are numerous at the time when the 

 young of the Dublin Pond trout appear on the 

 shoals. 



Mr. Thayer continues : ** The appearance of 

 the young trout on the surface of the pond is very 

 sudden ; towards the end of some calm warm day 

 in the latter part of May, or the beginning of June, 

 we see the whole pond alive with them, and in a 

 few days they are found in large schools along the 

 shores. Their return to deep water is not as in- 

 stantaneous as their appearance on the surface." 



This statement of Mr. Thayer indicates that the 

 Dublin Pond trout has similar habits to the cisco or 

 lake herring of some of the Western waters, which 

 is only seen on the surface between May 20th and 

 June I oth, during which period they feed greedily 

 upon the " drakes " and ladies of the ephemeral 

 May flies, the artificial imitations of which are so 

 highly prized by anglers, more particularly those 

 of the British Isles. 



Mr. Thayer also states : " The trout appear 

 again in shallow water about September i 5th, and 

 remain there until their spawning season ends, 



164 



