GENERAL MANAGEMENT 329 



For shifting mud from one part to another part of 



the same fishery the use of 

 Use of hurdles. hurdles is recommended. With 



a few piles and hurdles a tem- 

 porary obstruction can be constructed across the 

 river. By removing one or two hurdles at the part 

 where the mud is too thick the force of the current 

 will dash through the opening and wash the mud 

 down. This plan works very well on some shallows, 

 but when the mud has been -driven into slow, deep 

 water below it must be panned out and laid on the 

 bank. Hurdles, too, are useful to make up banks 

 when they are very rotten. The hurdles are laid flat 

 and pegged down in place, chalk or mud is spread 

 over them, and over this again it is well to lay some 

 Fough turf, thus making a fairly good path where 

 before it may have been impossible to get along the 

 side of the river. A hurdle fixed in the stream in 

 deep water will in some cases deflect the flow, and 

 leave a quiet place in which a large trout is certain to 

 take up its position. Sometimes, too, a judiciously 

 placed hurdle will enable a keeper to set a trimmer in 

 a place where without it the stream would be too 

 strong for the live bait to work about, and thus 

 attract the attention of any pike in the vicinity. 



There are often parts of a fishery which have 



every appearance of being 

 Weirs. most favourable for large 



trout, yet in some of them the 

 number, even in a well-stocked stream, is quite in- 



