STOCKING 387 



results have been achieved in my case may probably 

 be of some service to the reader. A natural carrier 

 flowing over hard, clean gravel and with constant 

 water supply was selected. In it a length of 55 

 yards has been made into a stew by the placing 

 of proper screens at the upper and lower ends. It 

 is approximately 12 feet wide, and has a depth of 

 about 2 feet 6 inches, with the river at its ordinary 

 summer level. It is divided into four parts by inter- 

 mediate screens properly and securely fixed. 



The ideal arrangement of a stew divided into com- 

 partments is to put the yearlings in the uppermost, 

 the two-year-olds in the next, and the wild fish in 

 the third. These wild fish are some of the under- 

 sized trout of the river turned in here towards the 

 end of the fishing season instead of being replaced in 

 the river. These wild fish are fed during the autumn 

 and winter, and turned into the river in the followingr 

 spring. The fourth compartment is useful for ex- 

 perimental work. This arrangement is not carried 

 out in my stew, but if for any reason it had to be 

 reconstructed it would be rearranged on these lines. 



I should advise anyone making a stew to purchase 

 his screens from one of the 

 Screens for the best pisciculturists in the king- 



stew, dom, and to see that he gets 



the very best material and 

 workmanship somewhat regardless of cost. To use 

 screens made by a local blacksmith, even the most 

 capable, is to court disaster. My screens, which were 



