PROCEEDINGS 
OF THE 
GEOLOGICAL AND POLYTECHNIC SOCIETY. 
Xew Series, Vol. XII. , Part IV., pp. 279—346. 
TiGUtb Cbree flMates and a /IRap. 
Edited by W. LOWER CARTER, M.A., F G.S., 
and WILLIAM CASH. F.G.S. 
18 9 4. 
