58 HOME FISHING AND HOME WATERS. 



should be so arranged that they can be readily re- 

 moved, when it becomes desirable to give the fish 

 the range of two or more ponds. 



At the head of each side of the ponds the spawn- 

 ing races should be located, and through these the 

 water that feeds the ponds should flow. The race- 

 ways should be about thirty feet in length and 

 four feet wide ; the depth of the water flowing 

 through them should be about six inches. The 

 sides of the raceway should be made of one and a 

 half inch plank and about eighteen inches in depth. 

 This raceway must be filled with coarse gravel, of 

 the size of a hickory nut to a hen's egg. The bot- 

 tom of the pond must slope gently up to the race- 

 way. The head of the race should be carefully 

 screened, and the screens kept clean, so as to pre- 

 vent the fish from escaping. It is desirable to 

 bring the water into the race through a long box, 

 as the water will very soon work around or under a 

 short box, and allow the fish to escape. If the 

 water enters with a fall, it may be allowed to pour 

 over an apron constructed of slats, one-half or one- 

 quarter of an inch apart, and set edgewise. This 

 will let the water through and keep the fish from 

 running up. Trout will run up stream very freely 

 and work their way through a very small passage, 

 but are not so likely to run down stream. 



The outlet of the pond should also be carefully 

 screened. The screens may be made of common 

 wire, and painted with tar mixed with one-third 

 turpentine or to the consistency of paint. They 

 may also be made of copper or galvanized wire 

 sieving. Wire screens for keeping the small fry 



