56 TROUT CULTURE. 



is abundance of room, especially where they are in an 

 open stream, it may be advisable to keep them in for 

 two years, as during the second year they put on flesh 

 and growth to an extent which amply pays for the 

 expense and trouble. Each person must, however, 

 shape for himself the course to be pursued, as he alone 

 can decide what will be the best to do under the 

 circumstances. 



If the general rules of procedure given above have 

 been diligently followed, disease will scarcely be 

 observed, as that generally has its origin from foul 

 water, overcrowding, and want or excess of proper 

 food. 



When disease does break out, however, it is a 

 terrible scourge, as it spreads with fearful rapidity, 

 and sweeps off the stock wholesale. 



The best thing, perhaps, for the trout-rearer to do, 

 should any such calamity occur, is to turn the fry out 

 altogether into the open stream and let them go their 

 own way, as instinct will doubtless guide them aright 

 if left to follow out their own inclinations. 



