184 SALMONIA. 



trout. Of their growth after the second 

 year I cannot speak, this must depend much 

 on their food and place of residence. Mar- 

 sigli says, they do not grow after the third 

 year, and at this age, in Austria, they are 

 sometimes a cubit long ; but though I have 

 fished much in that country, I never saw 

 any so long. If they are taken into new 

 and comparatively still water recently made, 

 and when food is plenty, they grow very 

 fast : under these circumstances, I have seen 

 them above 31bs. In the Test, where, as I 

 mentioned before, the grayling has been 

 only recently introduced, they have some- 

 times been caught between 3 and 41bs. in 

 this river I never took one above 21bs. but 

 I have heard of one being taken of 2ilbs. 

 The grayling is a rare fish in England, and 

 has never been found in Scotland and Ire- 

 land (as Poietes observed before) ; and there 

 are few rivers containing all the conditions 

 necessary for their increase. I know of no 

 grayling river farther west than the Avon, 

 in Hampshire: they are found in some of 

 the tributary streams of this river which rise 



