No. 658. 



Decade VI -Vol. VI.-No. IV. 



Price 2s. 



The 



Geological Magazine 



fll>ontbl\> Journal of (Beoloov^ 



WITH TVHICH IS INCORPORATED 



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THE GEOLOGIST. S\^onm ">$//>, 



EDITED BY 



HENEY WOODWAED, LL.D., FYR.S. 



APR 22 1919 



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E. H. EASTALL, M.A., F.G.S. 



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ASSISTED BY 



Prof. J. W. GREGORY, D.Sc, F.R.S. | Sir JETHRO J. H. TEALL, Sc.D., F.R.S. 



SibT. H. HOLLAND, K.C.I E„ D.Sc., F.R.S. Prof. W. W. WATTS, Sc.D., F.R.S. 

 PROF. J. E. MARE, Sc.D., F.R.S. Dr. A. SMITH WOODWARD, F.R.S. 



APRIL, 1919. 



CONTENTS :— 



Editorial Notes. 



Page 

 .. 145 



Original Articles. 

 Cambrian Hyolithidse. By E. S. 



Cobbold. (Plate IV.) 149 



Cyclones and Climate. By B. M. 



Deeley 158 



Borings at Cotefield Close and 



Sheraton, Durham. By David 



WOOLACOTT 163 



Notes on Ammonites. IV. By 



L. F. Spath 170 



Some Kecent American Petrological 



Literature 178 



Reviews. 



Upper Cretaceous Gastropoda from 



Tennessee 180 



Bibliography of Indian Geology ... 181 



Reviews (continued). Page 



A Mystery Crinoid 182 



The Vale of Kingsclere 183 



Geology of Fiji 184 



Asbestos in South Africa 185 



Lower Permian of Durham 185 



Reportof MinesDepartment, Canada 186 



Reports and Proceedings. 



Geological Society of London 186 



Liverpool Geological Society.. 187 



Edinburgh Geological Society 188 



Geologists' Association 189 



Correspondence. 



J. B. Scrivenor 190 



E. R. C. Reed 191 



Obituary. 

 A. E. V. Zealley 192 



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