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SMITHSONIAN INSTITUTION 



UNITED STATES NATIONAL MUSEUM 

 Bulletin 103 



CONTRIBUTIONS TO THE GEOLOGY AND PALEON- 

 TOLOGY OF THE CANAL ZONE, PANAMA, AND 

 GEOLOGICALLY RELATED AREAS IN CEN- 

 TRAL AMERICA AND THE WEST INDIES 



PREPARED UNDER THE DIRECTION OF 



THOMAS WAYLAND VAUGHAN 



Custodian of Madreporaria, United States National Museum, 



Geologist in Charge of Coastal Plain Investigation, 



United States Geological Survey 



WASHINGTON 



GOVERNMENT PRINTING OFFICE 



1919 



