AiiK'r'inni Fisheries Soeieti/ 143 



I ])rc'sse(l I'verv particle ol' milt ohtainahk' over them and it was 

 a vei-y laru'e quantity, so much that the water in the pan was 

 (listiiictly whitened. After fertilization the eg'gs were washed 

 and allowed to liai'deii. as I would do in a ease of hrook trout 

 eggs, hut in a few minutes they matted together in a thick mass 

 even more compactly than the eggs of the wall-eyed pike would 

 under the same circumstances. I separated them as well as I 

 could in the same fashion as 1 would the eggs of the wall-eyed 

 ])ike, hut even then tliere were a nund)er of nodules or halls of 

 several eggs. 1 then transferred them to a hatching jar and 

 turned on the water. Although the faucet was turned so slowly 

 that the water merely drihhled through and carried air with it 

 into the tuhes, the current thus created was suthcient to cause 

 many of the eggs to rise to the surface, and had it not heen for 

 a screen of cheese cloth across the li]) would have esca])ed into 

 the trough, 'idle eggs also when they touched each other imme- 

 diately clung into little halls. None of these eggs hatched. 

 Practically all the eggs died. 



Till' eggs from the second fish were taken liy the dry method 

 and aftei' fertilization and the introduction of water. 1 added a 

 small (plant ity of mud and workt'd the eggs in the same niannei- 

 as wall-eyed pike eggs used to be worked under the same circum- 

 stances. After washing, having previously ])repared a hatching 

 trough hy running about t'ight inches oi' water therein, 1 poured 

 the eggs over a cheese (doth tray scattt-ring them so that they 

 scarcelv touched each other. 1 allowed the tray to float on the 

 surface covering the trough with a hoard so as to totally exclude 

 the light. 



The amount of water flowed through the trough was iittle 

 more than dribbling. The stream was scart-ely larger than a 

 knitting needb'. In five days with the water tem])erature at .")0, 

 about (iO per cent of the eggs hattdied. 



The eggs from the third fish were taken and handled in the 

 same manner as the second, but instead of putting them on a 

 trav, ! allowed them to sink in a tnnigh upon some fine grave! 

 which I had placed there. The (lei)th of water was the same as 

 in the ease of the eggs of the second fish, namely, eight inches. 

 'Idle eggs settled very slowlv. so slowly in fact that at the end of 

 half an lioiii- those wlii(di were still not on the bottom I scooped 



