266 AMERICAN FISH CULTURE. 



pound and upwards. It is expected that a very large supply 

 of spawn will be taken from them this fall. 



There is connected with the Cold Spring Ponds, a farm 

 of five hundred or six hundred acres, situate on a spur of 

 Monadnock Mountain, sixteen hundred feet above the level 

 of the sea. Through this farm, runs one of the finest 

 streams for growing trout that can be found in New England. 

 It is the outlet of Monadnock Lake ; famous for the extra- 

 ordinary clearness of its waters, and the superior size and 

 quality of its trout, and not being exposed to freshets, but 

 supplied wholly by springs, it never rises nor falls the year 

 round. This last circumstance makes the stream a safe 

 one for trout growing, while its great size makes it capable 

 of sustaining an almost unlimited stock of fish. The 

 object of having this place connected with the Cold Spring 

 Ponds at Charlestown, is to try the experiment on a large 

 scale of raising trout as an article of food. All the condi- 

 tions here are favorable to the experiment, and no pains 

 will be spared to give it a fair trial. If trout cannot be 

 raised here successfully on a large scale, it seems safe to 

 say that they cannot be raised anywhere successfully. 

 There is a small stock of fifty thousand trout on the stream 

 at present, which it is hoped will be increased by an addi- 

 tion each spring of a quarter of a million and upwards. 

 They will be kept till the first of December in rearing- 

 boxes, when they will be transferred to ponds built for 

 them. More than usual interest is felt in this branch of 

 the establishment, from the fact that no attempt to raise 

 trout in large numbers from the eggs, has ever yet suc- 

 ceeded. Here let us say a word about the use of a rearing- 

 box in growing trout. It is the firm conviction of the 

 writer, that a rearing-box is indispensable to the culture 

 of trout in large numbers. As all know, who have had 

 any experience in raising trout when the young fry are 



