APPENDIX V. 



BRIEF SKETCH OF OPERATIONS AT THE COLD 

 SPRING TROUT PONDS. 



establishment was the first of its kind undertaken 

 -L in New England for making a business of fish breed- 

 ing. It is located in Charlestown, N. H., a town on the 

 Connecticut River, about fifty miles by rail above the 

 Massachusetts line. The water supply consists of two 

 streams, both fed by springs, and running about 10,000 

 gallons an hour in dry weather. The hatching house is 

 built at the source of one of these streams, and has a sup- 

 ply of 2,000 gallons an hour, at 47 Fahrenheit. The 

 breeding ponds are built at the junction of the two streams, 

 and receive, when required, all the water from both. 



1866. 



The Cold Spring Trout Ponds commenced operations in 

 the summer of 1866, when two or three small ponds were 

 built, and a hatching building, 8 feet by 16, was erected. 

 This building hatched 15,000 trout the following winter. 



1867. 



My whole attention was given the next year (1867) to 

 growing the young fry, it being my conviction that every- 

 thing now depended upon successful operations in this par- 

 ticular department. I felt certain that here was the weak 

 point in trout raising. Trout had been hatched by the 

 hundred thousand. Trout enough had come into being 

 by artificial means to fill the market to overflowing, if they 

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