44 DOMESTICATED TROUT. 



means, and locate it near the hatching house, and 

 where the fish are packed for market. A building of 

 the size of an ordinary family ice-house will do. 



5. Besides these rooms, there are at the Cold Spring 

 Trout Ponds a bird-pen, made of plank, large and dur- 

 able, and a fox-pen, also built of wood and of good size. 

 The bottom of the latter, made of plank, is laid three feet 

 under ground, and is covered with earth to this depth, 

 so that the animals confined may have a good place to 

 burrow in, without being able to escape by burrowing. 

 These pens are desirable, because as you will trap more 

 or less about your place, you will sometimes catch ani- 

 mals and large birds alive, which you may like to keep 

 alive. There is also a roughly built shanty, with a 

 stove in it, near the spawning beds, in which the spawn 

 can be taken in stormy weather, which is also recom- 

 mended. 



THE HATCHING HOUSE. 



The hatching house, or hatching room, is, of course, 

 the central point of the whole establishment. 



Here the swarms of young trout upon which the 

 other departments depend for their supply are brought 

 into being; the greatest care, therefore, should be 

 exercised in having it just right. 



It should in general be roomy, well lighted, firm, 

 and durable. Such a one, however roughly made, will 

 answer its purpose of hatching as well as a more ex- 

 pensive one ; though if one's means are unrestricted, 

 there is no reason why it should not be a handsome 

 building, and an ornament to the place, like that of 

 Colonel Thompson at Springfield, for instance. 



