80 



FISH CULTUEE. 



bowl of the instrument. This is a useful implement 

 if it be -wished to examine eggs or fry without 

 damage, but it is a clumsy affair to remove dead 

 ova with, as it draws up everything that comes 



within its influence and often more than the operator 

 requires. Some persons use tweezers of various 

 shapes. These are also clumsy and disturb the 

 surrounding ova more than is necessary, and often 

 crush the ova and scatter the contents, which speedily 

 putrify, all over the tray. Some use a fine spear — 

 a small needle tied to a stick — and this is jobbed 

 into the dead ova; but I have tried this plan, a,nd 

 the ovum being toughish as to its skin, often resists 

 the prod of the needle and goes slipping about from 

 place to place, delaying its removal and disturbing 



