American Fislicrles Sucieiy 1!)1 



tirely ovoreonie at that station by a total change of the -water 

 supply. In no other way couhl we do it, because we did not i-ou- 

 ti'ol llie eiitii-e stream. Yon know what it is, of course. Boils 

 ))i-('ak out all over tlic surface of the l)ody. The disease is of 1)ac- 

 terial origin, and origiinites in streams wliich have become ]iol- 

 hited, esju'eially by the washings from manure ]u'a])s, l)arnvard 

 manure, and e\('n from otlier sources, water closets etc.. drain- 

 ing into tile stream, bringing on these conditions on which tlie 

 bacteria thrive. But we have now cut out that stream entirely, 

 and by the introduction of spring water, we are able to raise 

 lu'own trout just as wvW at the station as we ever were. For- 

 tunately the rainbow trout is immune to this disease, and in 

 order to deal with it on Long Island, we are introducing rain- 

 bow trout to replace the brown trout as far as possible. 



I have still several other points, but the time is passing and 

 I will not enter into them at present. I thank you gentlemen 

 for your attention. (Applause.) 



DISCUSSION. 



Mr. A. Kelly Evans : Might I ask Dr. Bean if he knows of 

 the success attending the efforts of, I think, the Kogers" process, 

 in looking after the harmful waste in the pulp mills? 



Dr. Bean : Mr. Chairman, I have not been able to give that 

 matter any attention at all, for two reasons. In the first place, 

 that whole subject of pollution is in the hands of the chief fish 

 and game protector, Mr. Burnham, who has gone into it very 

 thoroughly indeed, and has compiled an immense amount of in- 

 formation on that suliject, and has instituted a number of suits 

 against mills and factories which are polluting the water. I do 

 not know what the Eogers' system is at all. I know what some 

 of the foreigTL countries do in the way of utilization of sewage 

 and rendering waste harmless, but I do not know anything 

 about that system. 



i\Ir. Evans : The reason I asked is that we in Ontario and 

 Quebec are face to face with a very serious problem, the export 

 or non-export of pulp. The provinces of Ontario and Quebec 

 possess a great majority of the pulp forests of the continent now, 

 and undoubtedly in a very short time a great number of pnlp 



