APPENDIX. 153 



slender stream of iced water from a large cask with 

 which they were connected. 



In this manner a small portion of ice, reserved 

 for the purpose, was found suf&cient to maintain 

 the water at a reduced temperature for some time 

 after it could no longer be applied to the larger 

 apparatus connected with the Ponds. 



In these tubs, however, no greater success was 

 achieved than in the larger breeding troughs. 



The Salmon Ova were deposited in the Ponds on 

 the 91st day from the date of their embarkation on 

 board the Norfolk ; and, with the exception of the 

 contents of two small boxes of greater age, about 

 the 96th from their exclusion from the parent fish, 

 and thus four days within the period beyond which 

 it has always been represented by Mr. Youl that 

 it would be highly dangerous to delay their immer- 

 sion in their native element. 



The Ova having been thus all deposited in the 

 Ponds, it is unnecessary for the Commissioners to 

 inform Your Excellency that their progress towards 

 maturity was watched with intense anxiety. 



Two boxes have been mentioned as containing 

 Ova of a greater age than the others. These had 

 been taken from the parent Salmon about the 6th 

 of December, 1863, had lain for six weeks in the 

 Ice Vaults of the Wenham Lake Ice Company; 

 and were, therefore, 45 days old at the time of em- 



