TROUT PROPAGATION. 



THE artificial propagation of fishes, that is, 

 taking the eggs, impregnating and hatch- 

 ing them by hand, is reduced practically 

 to an exact science, so far as the eggs of 

 most food-fishes are concerned; and after that the 

 rearing of fry to yearlings or older in the hatcheries 

 is chiefly a matter of cost of food, water supply, and 

 care of the young fish by skilled men. Most fish, too, 

 of all ages are now transported without loss worth 

 mentioning, so the work of actual hatching, rearing, 

 transporting, and planting food-fishes can be planned 

 in advance and carried out as successfully as the rear- 

 ing of warm-blooded animals. Beyond the point of 

 planting strong young fish in wild waters, the work 

 may be a success or failure, depending upon the condi- 

 tions existing in the water itself It may not be an 

 entire success nor an abject failure, but the fish-breeder 

 cannot always foresee which it will be with the cer- 



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