USE OF PLANT EXTRACTS 

 IN SEROLOGICAL STUDIES 

 OF FISH 



by Fred M. Utter, George J. Ridgway, and 

 Harold O. Hodgins 



Marine Biological Laboratory 



Ul B R A R Y 



MAY 1 41964 



WOODS HOLE, MASS. 



SPECIAL SCIENTIFIC REPORT-FISHERIES Na472 



UNITED STATES DEPARTMENlJOI^J>jlE_[if^^ 



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