SMITHSONIAN IWISCELLANEOUS COLLECTIONS 



VOLUME 81, NUMBER 15 



^ (End of Volume) 



ARTHROPODS AS INTERMEDIATE HOSTS 

 OF HELMINTHS 



Chief, Zoological 



BY 

 MAURICE C. HALL 



Division. Bureau of Animal Industry, U. S. Department of Agriculture 



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(Publication 3024) 



CITY OF WASHINGTON 



PUBLISHED BY THE SMITHSONIAN INSTITUTION 



SEPTEMBER 25, 1929 



