A'No. 596. 



Decade VI.— Vol. I.— No. II. 



Price 2s. net. 



THE 



GEOLOGICAL MAGAZINE 



OK 



^Tonthlji Jounial of Seologii. 



WriH WHICH IS INCOKPORATKI) 



arUE G-EIOLOG-IST- 



KDITKl) KV 



HENRY WOODWARD, LL.D., F.R.S., F.G.S., &c. 



ASSISTKl) BV 



Prokkssok J. W. GRKGORY. D.Sc.. F.K.S., F.Ci.S. 



Dr. GKORGK J. HliNUK. K.R.S.. F.G.S. 



Sir THOMAS H. HOLLAND, K.C.I. K., A.R.C.S., D.Sc, F. R.S.. F.(i..S. 



Dr. JOHN EDWARD .MARK, M.A., Sc D. (Camb.). F.R.S., F.G.S. 



Dr. J. J. H. TEALL, M.A., Sc.D. (Camb.), LL.D., F.R.S., F.G S. 



Profkssor W. W. WATTS. Sc.D., .M.Sc, F.K.S., Vick-Prks. Gkol. Soc. 



Dr. AUl'FIUR SMITH WOODWARD. K.R.S,, F.L.S., Sk.c. Gi'.or.. .'«<>c. 



HOUACK B. WOODWARD, F.R.S., F.G.S. 



FEBRUARY, 1914. 



OOnSTTElINrTS. 



I. Original Articles. Page 



On ' Cleat ' in Coal-seams. By 

 Professor Percy F. Kendall, 

 M.Sc, F.G.S. (Plate III.) 



The Geology of South Georgia. By 

 D. Ferguson, M. Inst. M. E. 

 F.R.G.S 



Note on the Rocks of South Georgia. 

 By G. W. Tyrrell, A.E.C.S. 

 F.G.S 



The Geological Relations of South 

 Georgia. By Professor J. W. 

 Gregory, D.Sc, F.R.S. ... 



Isostasy, Earthquakes, and Vuleani- 

 eity in relation to the Earth's 

 Infra-Plutonic Shell. By Dr. L. 

 LeighFermor.A.R.S.M., F.G.S. 



Cordierite in Granite from Dart- 

 moor. By F. P. Mennell, 

 F.G.S 



Ice-flows in the Trent Basin. By 

 R. M. Deeley, M.Inst. C. E., 

 F.G.S 



Professor Walther's Desert Erosion. 

 By Dr. W. F. Hume, F.R.S.E., 

 F.G.S 



49 



53 



59 



61 



65 



67 



69 



73 



LONDON : DULAU & CO., Ltd., 37 



II. Reviews. Page 



B. B. Woodward's Life of the 



Mollusca 



B. B. Woodward's Species of 



Pisidmm 



Eastman's Zittel's Palaeontology... 

 Geological Survey of Scotland 

 J. M. Sobral's NordingrS., Sweden 

 Canada Department of Mines 

 Devonian System of Maryland ... 

 Bulletins of the U.S. Geological 



Survey 



W. 0. Dietrich : Origin of African 



Elephant 



Brief Notices : Wisconsin Geology — 



Tasmania Copper District 



III. Reports and Proceedings. 

 Geological Society of London — 

 December 17, 1913 {sirpplcment) 



IV. CoRBESeelrcENci:. 



R. M. Deeley ,.v^. 



V. Miscellas^us^^ y ^, 

 Dr. Tempest Anderson's Be(iueSts 

 Geological Survey Rromotions ... 9^, 



so HO SQi^AUE,-W. 



78 



86 



89 



91 



93 



93 



94 



95 '<. 



'•1 

 ■96 



^" The Volume for 1913 of the GEOLOGICAL MAGAZINE is ready, 

 price 26s. net, Cloth Cases for Binding may be had, price Is. 6d. net. 



