302 SALT-WATER FISHES 



business, it does not pay at present " — this is their verdict ; 

 all the same they think that the work is worth carrying on 

 on the experimental scale, with a view to increasing our know- 

 ledge. Even Captain Dannevig himself is obliged to admit 

 that "we do not know with absolute certainty whether an 

 increase in the numbers of cod has resulted from artificial 

 hatching or not," though he thinks there is very much in 

 favour of the supposition that an increase has occurred. 



I confess that, for my part, if we had only the evidence 

 of these Norwegian experiments to go by, I should say that 

 it looks like an absolute waste of money to attempt in Norway 

 to do more than experiment with the hope of discovering 

 how to rear the young cod as well as hatch them, but fortu- 

 nately we have other and more satisfactory evidence in favour 

 of cod-fish culture. 



The Artificial Cultivation of Cod and other Sea 

 Fish in America 



For information on the work done by the United States 

 Commission of Fish and Fisheries in connection with Sea 

 Fish Culture, I have to thank the Acting Commissioner, 

 Dr. Hugh M. Smith, who very kindly sent me the following 

 letter in reply to one of mine asking for the information : — 



Washington, D.C., February 26th, 1902. 

 Dear Sir, — 



In reply to your letter of the loth instant, enquiring 

 as to the propagation of sea and anadromous fish in the 

 United States, you are informed that the following species have 

 received attention from this Commission : 

 Cod (Gadus callarias). 

 Pollack {Pollachius virens). 

 Haddock {Melanogrammus aglefinus). 

 Mackerel {Scomber scombrus). 



