How to obtain it. in 



as shades for the fish, and it is desirable to allow the water to 

 flow over some of the embankments of the ponds while it passes 

 underneath others. This is easily managed by having a few 

 rough plugs well fastened to the end of a stout stick or piece of 

 rail. A piece three inches by one inch will be found to answer 

 well, and the wooden plug (Fig. 4) should be made so as to fit 

 loosely into the flange of the pipe. 



Fig. 4- 



The handle A B acts as a lever in drawing the plug, and 

 should be three feet long. When required placea similar piece 

 of wood crosswise below the handle at the point D to act as a 

 fulcrum, and holding it firmly, or even pushing it forward a little 

 while the end of the piece A is drawn back, the plug comes out 

 of the socket of the pipe, and can then be lifted out. This 

 answers well also for working the bottom outlets of the ponds. 



When the ponds have been prepared and the screens 

 adjusted, and they are all in order for receiving young fish, the 

 latter should be gently introduced at the head of the first pond in 

 the nursery, and left to themselves. They will probably remain 

 there for a time, but will soon scatter, and many of them will 

 drop down from pond to raceway, and from raceway to pond, 

 until they enter the river or lake. But they will have got 

 thoroughly used to the water, and a number will remain in the 

 ponds and raceways for a while, taking up positions where there 

 are eddies and suitable currents. It is a good plan to feed them 

 artificially for a time in these nurseries, and some people approve 

 of placing a fine movable screen across the bottom of the pond 

 into which they are at first turned. This prevents them dropping 

 down stream too soon, and will often cause them to head up 

 again, should they find their downward course checked by it 

 Under the care of a skilled fish culturist a large percentage of 



