6 TflE ACCLIMATISATION 



other interesting objects safe into their 

 glass compartments, and he will tell us of 

 specially constructed tanks for railway 

 transit, and innumerable devices for keeping 

 the water cool and aerated, and watchful 

 care and foresight in every step of the 

 process. He will tell us of failures arising 

 from the omission of some trifling detail, 

 unforeseen or thought unimportant ; but 

 he can never teU us of lucky successes 

 or triumphs easily won. Bach detail was 

 thought out beforehand, and carefully 

 planned in accordance with all that was 

 known of the necessary physical conditions, 

 and even failure sometimes taught as much 

 as success. 



If, then, the vitality of a fish just taken 

 from the sea needs such careful conserva- 

 tion, how much fostering should the em- 

 bryonic vital spark in the ovum demand? 

 Salmon ova are, perhaps, exceptionally 

 delicate, as is well known to all breeders ; 

 but the writer must confess himself aston- 

 ished at their extreme sensibility to injury 

 when Mr. Eobert Eamsbottom, of Clitheroe, 



