84 FISH HATCHING. 



those used by Mr. Asliworth. It is made of 

 elm, oak, or deal, and is six feet long, 

 eiglit inches deep, twelve inches wide, an 

 enlarged mignonette box in fact. You 

 must recollect the two requisites — a run- 

 ning stream and shallow water. You must 

 fix the box according to your locality. You 

 can place it either in a narrow, fast-run- 

 ning ditch which you know will never fail 

 you, or, better still, place it near a spring 

 where you can regulate the flow of water by 



means of hatches, large or small. You must 



» 



o-uard both the entrance and the exit of the 

 box with a bit of perforated zinc, the holes 

 of which must be sufficiently large not to 

 obstruct the current of water ; and you should 

 also have a plate of perforated zinc fixed in 

 any convenient place, a foot or two above the 



