100 FISH HATCHING. 



to 60. This was too great a heat for the 

 young fish, and the weakest of them began 

 to look very sickly. I however immediately 

 placed a large block of ice in the earthenware 

 tank which supplies their water, and thus 

 lowering the temperature, the fish showed 

 their gratitude by becoming lively again. 

 Luckily I was able to obtain ice quickly, but 

 I thought (while waiting for it) of the ex- 

 periments in carrying salmon to Australia, 

 and what would have happened if " The 

 Field " window had been the " between- 

 decks " of an Australian clipper just passing, 

 through, the tropics, and the young fry had 

 just been hatched out of the egg what grief 

 and sorrow it would have been to their human 

 nurse if he found his stock of ice was all 

 exhausted. Anyhow, we have learnt that 



