122 SALM0N1D.E. 



being precluded, generally after generation, the instinctive 

 desire for it passes away in tlie process of time. But that the 

 degeneracy, both in size and flavourj is caused by the inability 

 to recruit their powers in the salt-water, is rendered evident by 

 the facts I have already quoted, concerning the falling off of 

 Salmon and Salmon Trout, both in size and appearance, when 

 intentionally confined in fresh-water lakes ; as well as by the 

 enormous rapidity of growth manifested in the Salmon Smalts, 

 which, having been a year and a half in fresh water, attaining a 

 length of seven or eight inches, and a weight of about so many 

 ounces, after a visit of a few months to the sea, return not only 

 re-invigorated in condition, but increased in bulk to seven or 

 eight pounds' weight. 



This accounts very readily for the superior size of what 

 Mr. Smith designates as a distinct species of Sea Trout, 

 which is, in reality, only the Brook Trout on his return 

 from the sea. The circumstances of its condition speak for 

 themselves. 



Who ever saw a Salmon fresh-run from the sea, of whatever 

 size or age, otherwise than in excellent condition, and of rare 

 beauty ? Who ever took a spent fish, of the same species, that 

 was not ugly, lean, discoloured, and uneatable ? 



The silvery whiteness, and the bluish back of the Sea Trcut, 

 as described above, is peculiar to all fresh-run fish of this family ; 

 and in Scotland a skilful Salmon-fisher will tell you, at a glance, 

 how many tides a fish has been in the river, merely from seeing 

 him leap at a fly or a minnow. 



All the other marks, cited by Smith as characteristics, are 

 merely signs of condition, as the brilliancy of the colouring, the 



