THE NEW AKT OF BREEDING FISH. 13 



all pressed out, a male fish is taken and operated 

 upon in the same manner ; the milt thus expressed 

 from the male falling into the vase and upon the 

 eggs gives the water a white hue. The male fish, 

 like the female, must be subjected to a number of 

 gentle passes to obtain the result. When this is 

 done, the contents of tlie vase must be stirred about 

 with the hand, or what. is still better, with the tail 

 of the male fish still wet with the milt- that has 

 flowed over it, — an operation resembling that made 

 by the fish in its natural state. 



After a very short period the water must be 

 carefully poured off and a like quantity of fresh wa- 

 ter poured on the eggs. 



Before the mixture of the milt and the water 

 covering the trout's eggs, their color is a pale orange 

 and transparent. After the mixture the eggs that 

 have been fecundated assume a brownish hue, and a 

 black speck, of the diameter of two millimetres, ap- 

 pears in the centre of each. 



After this the water must be changed once or 

 twice more. 



When the fecundation is complete some of the 

 eggs will appear white. These are the unfecundated 

 ones being sterile and dead, and if allowed to remain 

 will, Hke all other lifeless things, become putrid and 

 corrupt the rest ; they inust therefore be carefully re- 

 moved. 



