A 



THE 



GEOLOGICAL MAGAZINE 



UTontltlu Jjommal of (Stolorjm 



WITH WHICH IS INCORPORATED 



THE GEOLOGIST. 



NOS. DCXXXI TO DCXLII. 



KDITEI) BY 



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



LATE OF THE BRITISH MUSEUM OF NATURAL HISTORY ; PRESIDENT OF THE 

 PAL^ONTOGRAPHICAL SOCIETY ; ETC. 



ASSISTED BY 



Professor J. W. GREGORY, D.Sc., F.R.S., F.G.S. 



Dr. GEORGE J. HINDE, F.R.S., F.G.S. 



Sir T. H. HOLLAND, K.C.I.E., A.R.C.S., D.Sc, F.R.S., Y.P.G.S. 



Profkssor J. E. MARR, M.A., Sc.D. (Canib.), F.R.S., F.G.S. 



Sir JETHRO TEALL, M.A., Sc.D. (Camb.), LL.D., F.R.S., F.G.S. 



Professor W. W. WATTS, Sc.D., LL.D., M.Sc, F.R.S., F.G.S. 



Dr. ARTHUR SMITH WOODWARD, LL.D., F.R.S., F.L.S., 



Y.P.G.S. 



USTDE-W SEEIES. IDIEC^IDIE VI 

 JANUARY— DECEMBER, 1917 



LONDON: 



DULAL & CO., LTD., 37 SOHO SQUARE, W. 1. 



1917. 



