THE 



GEOLOGICAL MAGAZINE: 



or, 



JPtottiftlg Janpat of tolixgg : 



WITH WHICH IS INCORPORATED 



"THE GEOLOGIST." 



NOS. CCLIX. TO CCLXX. 



EDITED BY 



HENRY WOODWARD, LL.D., F.R.S., F.G.S., F.Z.S., F.R.M.S., 



OF THE BRITISH MUSEUM OF NATURAL HISTORY; 

 VICE-PRESIDENT OF THE PAL/EONTOGRAPHICAL SOCIETY, 

 MEMBER OP THE LYCEUM OF NATURAL HISTORY, NEW YORK ; AND OF THE AMERICAN PHILOSOPHICAL 

 SOCIETY, PHILADELPHIA ; HONORARY MEMBER OF THE YORKSHIRE PHILOSOPHICAL 

 SOCIETY; OF THE GEOLOGISTS' ASSOCIATION, LONDON; OF THE GEOLOGICAL 

 SOCIETIES OF EDINBURGH, GLASGOW, AND NORWICH ; CORRESPOND- 

 ING MEMBER OP THE GEOLOGICAL SOCIETY OP BELGIUM; OP 

 THE IMPERIAL SOCIETY OF NATURAL HISTORY OF 

 MOSCOW; OF THE NATURAL HISTORY SOCIETY 

 OF MONTREAL; AND OF THE MALACO- 

 LOGICAL SOCIETY OF 

 BELGIUM. 



ASSISTED BY 



ROBERT ETHERIDGE, F.R.S. L. & E., E.G.S., F.C.S., &c, 



OF THE BRITISH MUSEUM OP NATURAL HISTORY. 



WILFRID H. HUDLESTON, M.A., F.R.S., F.G.S. 



GEORGE J. HINDE, Ph.D., F.G.S., &c. 



USTEW SEEIES. DECADE III. VOL. III. 

 JANUARY— DECEMBER, 1886. 



LONDON: 



TRtJBNER & Co., 57 and 59, LUDGATE HILL. 



F. SAVT, 77, BOULEVART ST.rGERMAIN, PARIS. 



1886. 



