SECOND SERIES: PULMONATA. 



MANUAL 



OF 



CONCHOLOGY 



STRUCTURAL AND SYSTEMATIC. 



WITH ILLUSTRATIONS OP THE SPECIES. 



BY GEORGE WAIRYON.UR 



CONSERVATOR OP THE CONOHOLOQTOAL SECTION OF THB 

 SCIENCES OP PHILADELPHIA 



VOL. I. 



TESTACELLID^E, OLEACINID^E, STREPTAXI 



VITRINIDJE, LIMACID.E, ARIONID^. 



PHILADELPHIA : 

 PUBLISHED BY THE AUTHOR, 



Academy of Natural Sciences, Cor. 19th Sf Race Sts. 



1885. 



