200 MAKING A FISHERY. 



under the lasher of a weir, and note how it works 

 its tail and fins, so that while just holding its 

 own against the current it gradually sinks until 

 it reaches a depth where progression is easy. 

 Note, too, that even when on the surface in the 

 full force of the stream a few rapid strokes 

 of the tail will propel it straight up the 

 bubbling foam in the very strongest rush of 

 the water. 



Even if a trout, seemingly unable to with- 

 stand the pressure of the stream, is carried 

 down, before it has drifted five yards a vigorous 

 stroke of its tail will have propelled it into an 

 eddy, or still water at the side of the main 

 current, where it can rest and return to its 

 former position when the flood has subsided. 

 No flood yet experienced has washed a single 

 trout unwillingly down the stream for any great 

 distance. A fish contented with its quarters 

 simply makes its way to the slack water, getting 

 further out of the full force of the stream, as 

 the river rises, to make its way gradually back 

 when the water has fallen to its normal level. 

 A number of fish crowded in a hole below 

 a set of hatches take advantage of the rise 

 of water to dart up over the fall, and make 

 their way to a quiet place above, where 

 they can rest before continuing their journey 

 upwards. 



