PROCEEDI NGS 
OF THE _ 
NEW SERIES, VOL. XVII, 
1909—1911. 
WITH FORTY PLATES. 
PART I. EDITED 1!Y 
ARTHUR R. DWERRYHOUSE, D.Sc, F.G.S. 
PARTS II. AND III. EDITED BY 
WILLIAM LOWER CARTER, M.A., F.G.S. 
