Priiice. — A Perfect Fish Pass 51 



(4) The entrance is usually too small to be found by 

 the fish. 



(5) The entrance is in an unsuitable place and may 

 be ten, twenty or even fifty yards below. 



(6) If covered, the fish pass is dark, and fish prefer 

 to jump at a glittering waterfall rather than enter a dark 

 box or suspicious closed trap. 



A NEW FISH PASS DEVISED IN CANADA. 



Now, gentlemen, I have been at work designing a fish- 

 pass to overcome all these defects, and I had hoped to 

 have a model and drawings here today. The main idea 

 of this pass,— I shall call it 'THE PERFECT FISH 

 PASS," if it possesses all the advantages I claim for it, — 

 has been in my mind for ten or twelve years, but only 

 during the past summer have I actually erected one, 

 a large model on a small stream in New Brunswick, 

 where a natural fall or obstruction of nine or ten feet 

 exists. My good friend and scientific colleague. Prof. 

 A. P. Knight, joined me in this experiment and we suc- 

 ceeded with the idea excepting for two or three small 

 details which troubled us for some time. We tried re- 

 peatedly to get over these small diflficulties, but in vain: 

 Hence my play of "Hamlet" today gentlemen, is the play 

 with Hamlet absent. I decided, however, to bring the 

 subject up even though I shall not have the satisfaction 

 today of showing you the model and the drawings to 

 scale. Prof. Knight has these, as he continued the obser- 

 vations of the model on the New Brunswick stream, after 

 I left on a visit to Washington, and he wrote me since I 

 left. "Its success," he says, "has been greater than I 

 expected," and he adds in the same letter, that he has 

 now no doubt "it will prove even more successful than 

 you (that is, myself) had ever anticipated. In my hum- 

 ble judgment," he says, "this fishway will rank next in 

 importance to the enforcement of adequate fishery regu- 

 lations .... as a means of conserving fish-life." 



Not only has the model over ten feet high worked well, 

 but I had arranged for a far more conclusive test at 



