104 FISH HATCHmO. 



YOUNG FISH. 



All difficulties and troubles ■with the eggs 

 having been overcome, we are at length re- 

 warded by seeing the young fish begin to come 

 out of the egg. When I first received the 

 salmon and trout eggs from Hunungue, the 

 eyes of the young fish were just visible as two 

 small jet-black specks — the sign that they will 

 bear transport ; the oil globules could also be 

 seen in the substance of the egg, and the tail 

 of the fish could be observed moving from side 

 to side with a rapid vibratory movement. The 

 young fish increased, in size daily, and every 

 morning their growth was plainly perceptible ; 

 more especially could be noticed the form of 

 the head, and the darkening of the trans- 

 parent substance which would eventually be 



