THE HATCHING OP OVA. 97 



integrate it. A little ox or sheep's liver well boiled, 

 and ground or grated as fine as possible, or worms 

 chopped very small, may be scattered to them daily. 

 The smallest insects or midge flies thrown in the 

 water, they wOl rise to and take with avidity. 

 Various other matters are used for their subsistence, 

 amongst which I will notice one or two only, since 

 almost any animal matter, if reduced to sufficiently 

 small dimensions, forms food for them. 



In feeding young fish, care should be taken to 

 keep the bottom of the pond in which they are as 

 clean as possible; as, if animal food is left in any 

 large quantity deposited upon the gravel, it will of 

 course putrify, and much damage the fish. 



A few of the little gammari or freshwater squil- 

 lidse turned into the ponds then will 'be found useful 

 in clearing up such matters, if no other means be 

 practicable. While the fish are yet in the boxes, 

 you may remove refuse with the siphon which you 

 have used to suck up the eggs ; but this will be 

 found a somewhat tedious process. No means, how- 

 ever, should he neglected which will tend to keep the 

 water pure and clean. Lean meat, cut very' thin, 

 boiled well, and then macerated or pounded to a ' 

 pulp, makes good food, the small fibrous particles 

 being of the right size for the little fish to feed on. 



H 



