24:6 PROPAGATION OF FISH. 



trough. Then sink the pan gently to the edge in the 

 water of the trough, at the same time tipping the pan, so 

 that the water in the trough and in the pan shall come 

 together with as little current as possible. Then the edge 

 of the pan may be sunk into the water, and by tipping 

 the pan a little more, the eggs will flow out without in- 

 jury. By moving the pan while the eggs are running 

 out, they may be spread uniformly over the bottom. If 

 they fall in a heap, take the bearded end of a feather, and 

 move the water with it in the direction you wish the eggs 

 to go, and they will follow the current thus created. This 

 may be done without touching the eggs with the feather. 

 Distribute the eggs as evenly as possible over the surface 

 of the nest. Where they are placed upon wire sieves, 

 these may be moved and shaken under water, so as to dis- 

 tribute the eggs evenly. 



The strip which was placed across the trough to raise 

 the water, should then be removed. Care must be taken 

 that it be not removed so suddenly as to cause a rush of 

 water, which would carry most of the eggs away with it. 

 Raise the strip a little way from the bottom, so as to let 

 the water run out gradually, and when it is very nearly or 

 altogether at the proper level, the strip may be removed 

 entirely p Those who have a nursery attached to the 

 troughs, place the earliest eggs in the lower end of the 

 trough, and keep placing them toward the top, so that 

 the fish which are first hatched can run first into the nur- 

 sery without disturbing the others. About ten thousand 

 may be placed in each nest eighteen inches by fifteen 

 inches. 



If the eggs have been received from a trout breeder, 

 they should be left in the packages in which they have 



