366 A Walk from 



boxes side by side, about fifty feet in length, placed 

 on a slight decline. These boxes or troughs, each 

 about two feet wide and one foot deep, are divided 

 into partitions by cross- boards, which do not reach, 

 within a few inches, the top of the siding, so that 

 the water shall make a continuous surface the whole 

 length of the trough. Each trough is filled with 

 round, river stones or pebbles washed clean, on which 

 the spawn is laid. The water is let out of the mill- 

 race upon these troughs through a wire-cloth filter, 

 covering them about two inches deep above the stones. 

 At the bottom, a lateral channel or race, running at 

 right angles to the troughs, conducts the waste water 

 in a rapid, bubbling stream down into the feeding 

 pond, which covers the space of about one-fifth of an 

 acre, close to the river, with which it is connected 

 by a narrow race gated also with a wire-cloth, to pre- 

 vent the little living mites from being carried off 

 before their time. 



This may serve to give the reader some approximate 

 idea of the construction of the fish-fold. The next 

 process is the stocking it with the breeding ewes of the 

 sea and river. The female salmon is caught in the 

 spawning season with a net, and the ova are expressed 

 from her by passing the hand gently down the bod} r , 

 when she is again put into the river to go on her way. 



