Brown Trout 189 



graphs of the former with those of Loch Leven it will be seen that they 

 are almost identical. The rich feeding in Loch Leven produces spots 

 on their sides. Loch Crosophuill in Sutherland contains rather better 



trout than Loch Leven, because the feeding is somewhat richer (Figs. 

 163, 164, 165) ; while Loch Durness, close to Loch Crosophuill, contains 

 even richer trout, so rich that the spots on the sides become joined 



