? 



WATER TEMPERATURE 

 RECORDS FROM 

 CALIFORNIA'S 



CENTRAL 

 VALLEY 



1939-1948 



Marine Biological i .,;.-.: ,[o», 



LI E K A Tv Y 



NOV 7-1949 



WOODS HOLE, MASS. 



J 



SPECIAL SCIENTIFIC REPORT: FISHERIES No. 2 



UNITED STATES DEPARTMENT OF THE INTERIOR 

 FISH AND WILDLIFE SERVICE 



