;^cparfTnenf of flic ^nicrior: 



U. S. NATIONAL MUSEUM. 



15 



BULLETIN 



OF THE 



UNITED STATES NATIONAL MUSEUM. 



TSTo. 1 5. 



PUBLISHED UNDER THE DIRECTION OF THE SMITHSONIAN INSTITUTION 



WASHIlSrGTOI^: 



G-OVERNMENT PRINTING OFFICE. 



18 79. 



