264 



APPENDIX. 



VI. 



SALMON STAIRS. 



I HAVE spoken of salmon-stairs. These are certain ap 

 pliances adapted to falls or weirs, for the purpose of 

 breaking one large fall into a number of small ones, and 

 so giving the ascending fish an opportunity of breaking 



the journey up it. When the fall is tolerably light and not 

 perpendicular, as over weirs for example, the task is easy. 

 A large trough is fitted to the weir, the part being selected 



