.-O "--? '^'' ^^ ir-^^ 



THE 



EOLOGICAL MAGAZINE 



OR, 



WITH WHICH IS INCORPORATED 



THE G-E OLOOIST." 



NOS. CCCCIII TO CCCOXIV. 



EDITED BY 



HEIy^EY WOODWAED, LL.D., F.E.S., F.G.S., F.Z.S., F.E.M.S., 



OF THE BRITISH MUSEUM OF NATURAL HISTORY; 



PRESIDENT OF THE PAL^ONTOGRAPHICAL SOCIETY, 



AND VICE-PRESIDENT OF THE MALACOLOGICAL SOCIETY ; 



MEMBER OF THE LYCEUM OP NATUBAL HISTOET, NEW YORK ; AND OP THE AMERICAN PHILOSOPHICAIi 



SOCIETY, PHILADELPHIA; HONORARY MEMBER OF THE YORKSHIRE PHILOSOPHICAL SOCIETY; 



OP THE GEOLOGISTS' ASSOCIATION, LONDON; OP THE INSTITUTION OF MINING AND 



HETALLDEGY, LONDON; OF THE GEOLOGICAL SOCIETIES OP EDINBURGH, 



aLiSGOW, HALIFAX, LIVERPOOL, AND SOUTH AFRICA; CORRESPONDING' 



MEMBER OP THE GEOLOGICAL SOCIETY OF BELGIUM; OP THE 



IMPERIAL SOCIETY OF NATURAL HISTORY OP MOSCOW; OF 



THE NATURAL HISTORY SOCIETY OF MONTREAL; 



AND OP THE MALACOLOGICAL 



SOCIETY OF BELGIUM. 



ASSISTED BY 



EOBEET ETHEEIDGE, E.E.S. L.&E., F.G.S., E.C.S., &c. 



WILFEID H. HUDLESTON, M.A., F.E.S., F.G.S., F.L.S., F.C.S. 



GEOEGE J. HINDE, Ph.D., F.E.S., F.G.S., &c. 



AND 



HOEACE BOLINGBEOKE WOODWAED, F.E.S., F.G.S., &c. 



ISTEW SERIES. 3DEC.ADE I^^. VOL. AT. 



JANUAEY— DECEMBER, 1898. 



LONDON : 

 MESSES. DULATJ & CO., 37, SOHO SQUAEE. 



F. SAVY, 77, BOULEVART ST.-GEEMAIN, PARIS. 

 1898. 



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