Prevent revit Conticurry. 385 
After the roe becomes fructified by the milt, the case of 
grilles, Fig. 2, is placed in the tray, and then deposited cross- 
wise in the race-way, where the tray is mechanically confined, 
when the ovais emptied on the glass grille, and left for nature 
to do the rest, only seeing that the water continues to form a 
stream like a natural brook through the race-way, and that 
the light be never glaring or the temperature of the water 
too high, bearing in mind that there will be several degrees 
of difference between the water at the head and foot of the 
way. 
The grilles should be examined daily, and any addled or 
dead eges removed from contact with others. This should 
be done sp as not to disturb the other eggs, as great quict 
during the months of incubation is necessary. 
The following cut represents the implements for removing 
dead eggs. 
Fig.1. The Siphon, used for examining the egezs. ¥. Pincers for picking out dead egys. 
8. Fine brass wire for taking up dead eggs. 
The siphon is used in France to draw up the dead eggs ; 
but, as it generally disturbs so many of the live ones, its gen- 
eral use in fish-culture is now confined to examining the eggs, 
while pincers with sharp-pointed nibs are often used for pick- 
ing out the dead eggs; but Mr. Francis states in his “ Fish 
Culture’—a small but very useful volume—“ Some use a 
Bs 
