SMITHSONIAN INSTITUTION 



UNITED STATES NATIONAL MUSEUM 

 Bulletin 69 



THE T/ENIOID CESTODES OF NORTH 

 AMERICAN BIRDS 



BY 



BRAYTON HOWARD RANSOM 



Assistant Custodian, Helminthological Collections, U. S. National Museum 



Ji 



WASHINGTON 



GOVERNMENT PRINTING OFFICE 



1909 



