60 NATURAL HISTOEY OF THE SALMON. 



salmo fario, and showed that all the parrs of this 

 species had the extremity of the second dorsal or 

 dead fin fringed with orange, besides other marks 

 about the head; but the fin mark is the best, and 

 is easily distinguished. Being anxious to be able 

 to detect the parr of the salmo trutta and salmo 

 eriox from those of the salmo salar, we asked 

 Sir William if he could give us any mark equally 

 clear, but he frankly acknowledged that he was 

 unable to detect any outward difference in the 

 parrs of these kinds from that of salmo salar. 



Although it may seem strange, it is not the less 

 true, that, at this stage of the experiment, notwith- 

 standing that every thing had been successful, the 

 subject received more attention from persons at 

 a distance than from those in the neighbourhood. 

 The facts in the history of the salmon that had 

 now been proved beyond a doubt, were again and 

 again disputed by those who would not take the 

 trouble to investigate the matter for themselves, 

 but who still followed the errors of others, and 

 were determined to retain them, because they did 

 not square with their previously received opinions 

 on the subject. Nothing daunted, however, Mr 

 Buist, and the few friends that had taken an in- 

 terest in the experiment from the first, kept on 



