98 PRACTICAL TROUT CULTURE. 



placed in them. The supply of water must be 

 carefully regulated ; if too strong a current is in- 

 duced, the fish will be carried against the dividing 

 screens and destroyed ; the amount in every case 

 can only be ascertained by experiment. Com- 

 mence by occupying the uppermost divisions ; the 

 great importance of this will be seen when we treat 

 of the care of the young. 



