48 On Stocking. 



practice, the secret of growing evenly sized two- 

 year-olds lies in the careful selection and segre- 

 gation of the yearlings. 



The ponds suitable to two-year-olds require to 

 be deeper and wider, but not necessarily longer 

 than those for yearlings. At Howietoun, we 

 prefer a depth of from six to twelve feet. The 

 supply of water is not so material in the case of 

 two-year-olds as it is in the case of yearlings. 

 Yearlings require a current ; two-year-olds require 

 range and the amount of range at this stage has 

 a marked influence on the future shape of the 

 mature trout. Stone says in his Domesticated 

 Trout 1 (a book that should be in the hands of 

 every fish-culturist : 



'If you want to have trout short and deep, and to use an 

 expressive Americanism, " Chunky," grow them in a deep 

 still pond. If you want to have them long and slim, grow 

 them in a shallow, swift current.' (Dom. Trout, p. 276.) 



And again at p. 235 : 



' Give them range. If you want to grow your trout very 

 large, you must give them range : I say if you want to grow 

 them very large. Eange is not necessary, by any means, to 

 the average growth of trout, for they will grow to a very 

 good size in small places, and it is also generally incompat- 

 ible with trout growing as a business to give them great range ; 

 but if you want to raise the very largest trout, you must give 

 them the very largest range. Trout will not grow above a 

 certain size in confinement. They will stop, or nearly stop 



1 Domesticated Trout : How to Breed and Grow Them, by Living- 

 ston Stone, A.M. Boston : James R. Osgood & Company, 1873. 



