THE RATIONAL EXPLOITATION 

 OF THE SEA FISHERIES 

 with Particular Reference to the 

 Fish Stock of the North Sea 



Marine Bio!ogi;,:,| I . 

 MAY .1 IP^o 



WOODS HOLE, (•.•A>S. 



SPECIAL SCIENTIFIC REPORT: FISHERIES No. 13 



UNITED STATES DEPARTMENT OF THE INTERIOR 

 FISH AND WILDLIFE SERVICE 



