112 



FISH FARMING : 



creased in depth by the decrease of width between the timbers 

 confining it lower down. The boulders shown and several 

 others cause slack water and consequent resting places for 

 the fish as they run through. 



In concluding my remarks on fish-passes I would like to 



BOTTOM 

 OF PAS 5- 



\ DAM, QFl Wlf\ 



FIG 24 



make it perfectly clear that, while I advocate the principle of 

 so- constructing a. pass that the fish are enabled to run 

 through the volume of water contained in the pass, I am quite 

 prepared to admit that, under favouring circumstances, salmon 

 " leaps " may be arranged for, with varying success, but they 

 are not so successful as such a pass as I have described. 



