l-i<! Thirfi/si.rlli Annual Meeling 



lu'<iij)iiiii<;- of Mai'cli, ill a lime wlici'c all our oilier raiuhow trout, 

 even those which do not present a |»ai'lieulai- iiilensiiy of tlie red 

 color, have ah'eadv completely I'mislieil s|»a\viiin,u-. 



1 lli()ii,i:-ht it would lie of interest to bring- these facts to the 

 knowleduc of tlie A]iieric-an Fislieries Society. I should be much 

 pleased if these facts should be deemed wortliy of attention by 

 my hoiioral)le collen.nmes of tlie Society and I should be very 

 Ihankful to tlieui if ihey would l^indly -ive their opinion repird- 

 lUiX ihc causes which could hrin^i' ahoul the production of such 

 notal)le dill'erences iii lishes. liaxino- all, as it seems, the same 

 origin, living in connnon. in the same jtonds and receiving ab- 

 solutely the same food. ( A})|)lause. ) 



DISCUSSION. 



President: This paper is open for discussion. I should l)e 

 g'lad to hear from some members who have had exj^erience, if 

 there is any story to tell in this country. Are there none of onr 

 trout men here ? 



31r. Claris: I tliiidv Wisconsin has had experience. 



President : We have had a lot of experience, but so far as 

 I am aware we have had nothing at all that has been parallel to 

 this. This seems to be a case of substantially the formation of 

 a ne^- variety, a very decided change in the habits, under new 

 conditions. Of c-ourse our conditions in Wisconsin are not es- 

 sentially diffen^nt from tliose of the normal rainbow trout. 



'Mv. Clark : This is their native element. 



Pi'esident: We tlierefore, have very little that we can say, so 

 far as I am aware nothing that parallels this. The ])aper does 

 not go into discussion of the point, that we should all of us, at 

 least those interested from a biological point of view, like to 

 know, and that is, how this new variety was formed, whether 

 it canu> as the result of somewhat ra])id evolution on the part of 

 a tew lisb or whether it was something concerning a considerable 

 nuiuher of lish. He speaks of liaving two lots of eggs, and does 

 not say whether this white variety has come fnun one lot of 

 egii's, or from individuals belonging to both lots. Of course, if 



