S$ 9b a 
A MONOGRAPH 
OF 
THE EOCENE MOLLUSCA, 
OR, 
DESCRIPTIONS OF SHELLS 
FROM 
THE OLDER TERTIARIES OF ENGLAND. 
BY THE LATE 
FREDERIC E. EDWARDS, F.G:S. 
CONTINUED BY 
SEARLES V. WOOD, F.G:S. 
PART IV. 
PULMONATA AND PROSOBRANCHIATA. 
(INDEX TO VOLUME I AND DIRECTIONS FOR BINDING.) 
Faces 33160; Pirate XXXIV. 
Vif EG 
LONDON: 
PRINTED FOR THE PALHONTOGRAPHICAL SOCIETY. 
1877. 
