84 



Mr. Shaw's experiments and observations, already given at 

 length in the article on the Salmon, have gone very far to- 

 wards convincing many that the Parr, as a distinct species, 

 does not exist. Further experiments are in progress by Mr. 

 Shaw and others, and it is hoped their observations will be 

 made public, and the Natural History of our Salmanida 

 clearly made out. 



The vignettes below represent three states of the May-fly 

 and two states of the Stone-fly of anglers. 



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