] 10 INTRODUCTION. 



months, and the other twenty-seven, in this fresh- 

 water lake. A similar experiment was made in 

 Scotland in April 1831, by a dozen or two of small 

 Salmon fry being introduced into a newly-formed 

 pond, and the result is thus communicated by Mr. 

 Yarrell. " As the pond, between three and four 

 acres in extent, had been newly stocked with trout, 

 no fishing was allowed till summer 1833, when 

 several Salmon were caught, from two to three 

 pounds weight, perfectly well shaped and filled up, 

 of the best salmon- colour outside, the flesh well- 

 flavoured and well-coloured, though a little paler 

 than that of a new run fish." (ii. 17). — And, once 

 more, on a larger scale, M. Lloyd states that near 

 Katrineberg, there is a valuable fishery for Salmon, 

 ten or t\velve thousand being taken annually. These 

 Salmon are bred in the lake, and in consequence of 

 cataracts, cannot have access to the sea. The year 

 1820 furnished 21,817.— Finally, with regard to 

 the Smelt, we learn from Dr. M'Cidloch that Colo- 

 nel Maxwell has brought this experiment to a suc- 

 cessful conclusion, in a pond of about three acres, 

 in Yorkshire. During three years they propagated 

 abundantly, and were not injured by the freezing of 

 the whole pond. As to their quality, it was stated 

 by the fishermen of the Tees, by w^hom the pond 

 was drawn, that they had never seen a finer lot of 

 smelts; so that in this case there was no loss of 

 flavour or quality. 



So much for this class ; and now for the third, or 

 true Sea- fish, which generally avoid fresh water. Is 



