32 HOME FISHING AND HOME WATERS. 



stream, and run up again to the head-waters in the 

 fall and winter to spawn. 



When putting fish into a stream, do not put them 

 suddenly into water much warmer than that of the 

 vessel in which they have been transported. They 

 will not be so likely to be injured by putting them 

 in water a few degrees colder ; but try to avoid all 

 sudden changes, and gradually raise or lower the 

 temperature of the water in which you bring them, 

 until it is even with that of the stream in which they 

 are to be placed. Perhaps in no branch of fish cul- 

 ture are the results more immediate, or more 

 apparent, than in restocking streams. Very many 

 inland streams that were once inhabited by trout, 

 are now wholly depleted, not only of that fish, but 

 of all others. They are beautiful, sparkling little 

 streams, but so far as good food-producing element 

 goes, they are valueless. In a large majority of 

 cases, they will make a wonderful return for the 

 restocking. 



In the year 1875, the State of New York directed 

 its Fish Commissioners to purchase a trout-breeding 

 establishment, and to raise and distribute brook 

 trout. Since then, from one to two millions have 

 been hatched and distributed each year, and the 

 results have been most gratifying. Those that were 

 taken first, after the restocking, were small, of 

 course ; those that were left, had the more food, 

 and by the next year, yielded nearly as much weight, 

 although fewer would be taken ; and the following 

 year the fish were still larger, furnishing a splendid 

 return for the expense of restocking. 



This addition to the yield of any stream is so 



