SMITHSONIAN MISCELLANEOUS COLLECTIONS. 



L_ 194 



LAND AND FRESH WATEE SHELLS 



OK 



NORTH AMERICA. 



PART I. 



PULMONATA GEOPHILA. 



BY 



W. G. BINNEY AND T. BLAND, 



WASHINGTON: 

 SMITHSONIAN INSTITUTION. 



FEBKUARY, 1S69. 



