EEARINa YOUNG TROUT 163 



only half the number of fingerling-ponds that 

 can be managed when the automatic feeder is 

 in use. 



There are several designs of automatic feeders more 

 or less in use, two of which seem to be most generally 

 favoured. Both are operated by means of a small 

 waterwheel, and are usually set at the head of the 

 nursery-pond. One supplies the food by drawing it 

 from the reservoir by means of a piston rod, which 

 works back and forth through a hole bored in the 

 side close to the bottom. A good reservoir may be 

 made from a stoneware marmalade jar with a hole 

 bored in the side close to the bottom. The other 

 throws the food over the surface of the pond by three 

 or four wooden spoons or slightly hollowed paddles 

 set like the spokes of a wheel in a hub. I prefer the 

 first, because it supplies the food more regularly, more 

 evenly, and much more slowly than the second. The 

 last point is of decided merit, for until the supply 

 of food in the reservoir is exhausted, there are finger- 

 lings waiting eagerly for each grain that falls. 



Food for Fingerlmgs. — Fingerlings or ad- 

 vanced fry, having been placed in the nursery- 

 ponds, should be given food not less than three 

 times a day. Experience has taught us that 

 there are two kinds of food that yield the best 



