.ImcriciDi Fislwriis Socicfv. 29 



bulkhead about uiue feet lon^-, situated at the head of those 

 troughs and fed by a rous^hly-construeted raeeway leadiiifj from 

 a small spring- about six rods distant on the hillside. The water 

 iroiu eaeh of llu' openini^s feeds two troui^hs so ])laeed that the 

 lower end of the upper one rests upon the head oi the other, 

 thus ereating" a fall of nearly the height of the tr()ugj,"hs. Each 

 trough is 14 feet long-, 5 inches deep, and consists of a double 

 row of boxes; each box 17 inches long, 15 inches broad and 2 

 inches deej), giving a capacity of from 8,000 to 10.000 eggs." 



As this was an e.Kj^erimental year for this work, the experi- 

 ments made were noted, and one very important and essential 

 matter in connection with this work was that conclusions in re- 

 gard to the experiments were very positively determined. 



The eggs, after being eyed, were transferred to the North- 

 ville Station. ( )n one of the trips in transferring eggs an experi- 

 ment was made in connection with moving eggs at different 

 ages; from those freshly taken, to the twenty-second dav. From 

 these experiments it was definitely concluded and ])ositivelv 

 proved that in moving brook-trout eggs at this stage they should 

 be moved not later than the eighth day. inasmuch as those moved 

 between the eighth and eighteenth days were practicallv a total 

 loss. 



From these experiments we came to the conclusion tliat all 

 eggs taken on the Au Sable River at least, should l)e moved as 

 soon after taking as possilde or held until the eves plainly 

 show. 



In the season of iSc)", thinking that fully as many eggs would 

 be obtained without using the rod and line, our men were not 

 placed on the Au Sable until the latter part of September, and 

 the work was begun with the seine about the 25th of that luonth. 

 I'^rom that time until the middle of Xovember there were u[)- 

 wards of 10,000 lish taken, probably all of them with the seine. 

 The eggs were dispatched to Xorthville within a few days after 

 they were taken from the fish, and in some instances the day 

 they were taken, and in no case were they allowed to be older 

 than eight days. 



Our success in ol)taining a good ])ercentage of wild l)rook- 

 trout eggs was not as marked as that reported by Mr Titcomb 

 at the meeting last year ; we were not aljle to obtain over 70 per 

 cent, of good eggs; possibly had they been carried forward to 

 the eyed stage on the .-\u Sable River they would Iiave done 

 somewhat better. In my opinion, it is not ])Ossible to remove 

 wild brook-trout eggs from the Au Sable River and have as high 



