18 FISH HATCHING. 



rectly, as it is not likely that all the ova 

 should become loose at the same moment. 



COLOUR OF OVA. 



I have observed a curious circumstance as 

 regards the fact that the eggs differ in colour 

 in different trout. At the beginning of this 

 year S. Gurney, Esq., M.P., kindly invited 

 me down to assist in taking the ova from 

 some of his trout, who live a luxurious life 

 in that part of the Wandle which belongs 

 to him. We found the fish quite ripe, and 

 in a few minutes obtained a very ample 

 supply of the most beautiful ova I ever be- 

 held. It was there that I remarked for the 

 first time that the ova of some of the trout 

 were of a splendid coral-red colour ; others, 

 on the contrary, were almost as white as 



