SMITHSONIAN INSTITUTION 



UNITED STATES NATIONAL MUSEUM 

 Bulletin 92 



BIBLIOGRAPHIC INDEX OF AMERICAN 



ORDOVICIAN AND SILURIAN 



FOSSILS 



VOLUME 1 



BY 



RAY S. BASSLER 



Curator of Paleontology, United States National Museum 



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WASHINGTON 



GOVERNMENT PRINTING OFFICE 



1915 



