SEROLOGICAL DIFFERENTIATION OF 

 POPULATIONS OF SOCKEYE SALMON, 



Oncorhynchus nerka 



Marine Biological Laboratory 



LIBRARY 



OCT 2 -1958 

 WOODS HOLE, MASS, 



SPECIAL SCIENTIFIC REPORT- FISHERIES No. 257 



UNITED STATES DEPARTMENT OF THE INTERIOR 

 FISH AND WILDLIFE SERVICE 



