94 FISH HATCHING. 



means of which he has met with such great 

 success in fish hatching. 



All things ready, place your ova either on 

 the glass rods or on the gravel ; have a bit 

 of board ready, fitting the tops of the boxes 

 accurately, to keep out all the light (which is 

 so favourable to vegetation), and look at the 

 eggs every morning, to see how they are 

 getting on. You should also support, by 

 means of stones or pegs fixed into the gravel, 

 bits of roofing slates over the eggs, to prevent 

 the deposit, after the manner suggested for 

 the out-of-door boxes. 



You will, of course, find some of the 

 eggs die. Even the most attentive human 

 nurse will lose some of the eggs, and you 

 will know these in a moment. The egg, 

 instead of being a bright pink and fresh 



