No. 697. 



Vol. LIX of Whole Series. 



Price 2s. 6d. 



The 



Geological Magazine 



HDonthlv) 3ournal of (Bcoloov. 



WITH WHICH IS INCORPOKATED 



THE GEOLOGIST, 



Founded in 1864, by the late Dr. Henry Woodward, F.B.S. 



Editor — R. H. RASTALL, Sc.D., M.Inst.M.M. 



iSSISTKI) BV 



Pbof. J. W. GREGORY. D.Sc, F.R.S. 

 F. H. HATCH, Ph.D., M.Inst.M.M. 

 Sir T. H. HOLLAND, K.C.S.I., F.R.S. 

 Prop. J. E. MARK. Sc.D., F.R.S. 



Sir JETHRO J. H. TEALL, Sc.D., F.R.S. 

 Prof. W. W. WATTS. Sc.D., F.R.S. 

 HENRY WOODS, OT. At; -F.R.S. 

 A. SMITH WOODWARD, LL.D., F.R.S. 



JULY, 1922. 



CONTENTS :— 



Page 

 Original Articles. 



A Freshwater Shale at the Base of 

 the Carboniferous in Ribblesdale. 

 By Prof. E.J. Garwood. (With 

 Plate XIII and 1 Text-fig.) 289 



The Pliocene Flora of Trans- 

 caucasia. By Prof. J. W. 

 Palibin 294 



A New Azygograptus from N. 

 Wales. By Dr. G. L. Elles. 

 (With 1 Text-fig.) 299 



The Structure of the South-West 

 Highlands. By W. B. Wright, 

 E. M. Anderson, J. E. Richey, 

 H. H. Read, and L.W. Collet 301 



The Lower Devonian Fauna of 

 Torquay. By Dr. F. R. C. Reed. 

 {Conchidcdfvomp. 275.) 303 



A Model of Pelonejisles philarclms. 

 By H. N. Hutchinson. (With 

 Plate XIV.) 309 



The Ordovician Lavas of Mynydd 

 Prescelly. By G. M. Part. 

 (With 6 Text-figs.) 310 



\ A- 



Vt;-; Page 

 Original Articles {continued.) 

 Notes on the Brandesburton Kame, 

 Yorkshire. By J. Phemister. 

 (With Plate XV.) 323 



Reviews. 



Underground Waters 327 



Dana's Textbook of Mineralogy ... 329 



Lead and Zinc in Wales 330 



Transactions of Local Geological 



Societies 331 



Tin in the Transvaal 331 



Ore Deposits in British Columbia 332 

 Fossil Echini of the West Indies... 333 

 Post-Glacial Warping in New - 



foundland 834 



The Mineral Resources Bureau 



Publications 334 



A Relief Map of the Bristol Area... 335 



Correspondence. 



J.W.Jackson 335 



F. A. Bather 335 



L. D. Stamp 336 



LONDON: DULAU & CO., Ltd., 3i-86 Margaret Street, 

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