A III erica II Fishrrirs Societi/ 245 



lio^^c to brino- tlie water up, whieli lias to be mixed with various 

 cheiivieals. Wlien you eouie to tlie actual test the amount of tlie 

 solution to be used varies with the amount of oxygen originally 

 pn'sent in the water. The proper amount can be determined 

 very accurately because the color of the water changes when 

 enough of the solution has l)een added, and from the amount 

 used it is easy to determine the amount of oxygen present. 



]\fr. Clark: 1 would like to ask the president if Professor 

 Hawkinson lias published liis re])ort. 



President : Professor JIawkinson has not. at least T suppose 

 not, 1 haven't received it. 



Usually the lakes in Wisconsin which carry oxygen to the 

 bottom have shown very s])arse l»ottom life and from the rejiorts 

 I have received from ^Ir. Wagner, wIki is looking u]) the fish, 

 that seems to lie true in the a(hlitional lakes he has examined 

 this season. 



:\Ir. Lydell: Would it l)e possible for a ])ractical iish cul- 

 turist to take the ajiijaratus and find out wliether th(U'e was 

 oxygen, witliout a scientist to tell him? 



President: If I had the apparatus. I could sliow any[)ody 

 how to use it. 



Mr. Lydell: This paper was very interesting to me. Lots 

 of times, while raising nets while on examination of state waters, 

 we would find, as the net would drop off into deeper water, the fish 

 would shut off instantly. Last season, the commission sent me 

 to one of the lakes to find if there were any wall-eyed pike there. 

 I had su|)})osed the wall-eyed ]r:ke wtndd l)e in dcL'p \rater, l)ut 

 did not find any. 1 have found out now why I did not find them. 



President : The only trouble with your investigation is that 

 if you are going to do it, you must carry a puni]) and hose, 

 a iiumber of bottles and so on, and it is a good deal of a nuisance. 



(A Voice: Tt denends on the bottle.) 



President : These are a dift'erent kind of l)ottles. 

 (Laughter.) 



