REARING 223 



although there are several other suitable mincers in 

 the market. By changing the perforated steel plate 

 of the machine the meat is finely 

 or coarsely cut according to the 

 size of the fish to be fed. The 

 perforations of the fine plate which 

 is used at first are only ^ of an 

 inch in diameter. 



. , ... FIG. 18. 



Ihe special processes belonging 

 to the preparation of the food are such that there 

 should be a separate shed or outbuilding devoted 

 exclusively to the service of the commissariat depart- 

 ment. In vain will you have incurred the trouble 

 and expense of constructing rearing-pcnds if you have 

 not also made proper arrangements for provisioning 

 the fish to be put into them. You will be like the archi- 

 tect of a dwelling-house, who had exhausted so much 

 skill and attention on the dining-room that he forgot 

 to provide for the kitchen, the scullery, and the larder. 



The minced meat having been allowed to cool, 

 and having been separated by rubbing in the hand, is 

 taken in a small pail, and scattered broadcast evenly 

 in the ponds. From this time the use of the long- 

 handled feeder is discontinued. A complete and 

 permanent alteration from one diet to another should 

 not be made suddenly. The prepared liver food 



