Jfo. 582. 



Decade V.— Vol. IX.— No. XII. 



Price 2s. net. 



THE 



GEOLOGICAL MAGAZINE 



OR 



^Tonthln Jourmii of ©eolocin. 



■WITH WHICH IS INOOIIPOKATKI) 



THCE G-EOLOG-IST. 



EDITKI) ]{Y 



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



ASSIST I! 1> HV 



-Profkssor J. W. GREGORY, iJ.Sc, F.R.S., 1''.G.8. 



Dr. GKORGK J. HINDK, F.R.S.. F.G.S. 



Sir THOMAS H. HOLT.AND, K.C.I.E., A.R.C.S., D.Sc, I'.R.S., F.G.S. 



Professor W. W. WATTS, Sc.D., M.Sc, F.R.S., Vice-Pres. Geol. Soc. 



Dr. ARTHUR SMITH WOODWARD, F.R.S., F.L.S., Sec, GEnr,.Soc. 



HORACE E. WOODWARD, F.R.S., F.G.S. 



I. Original Articles. Page 



The Species of Cidaris from Lower 

 Greensand, Faringdon. By 

 Herbert L. Hawkins, M.Sc, 

 F.G.S., Eeading University. 

 (Plates XXV and XXVI.) 929 



Post-Jurassic Earth-movements in 

 South Africa. By Professor 

 E. H. L. SCHWARZ, A.E.C.S., 

 F.G.S., Rhodes University. (Two 

 Text-figures.) ... r 540 



Palaeontology the Biology of Fossils. 

 By W. D. Lang, M.A., F.Z.S. . 550 



The Pollurian - Trewavas Coast 

 Section, Cornwall. ByU. Green 

 and C. D. Sherboen 558 



IL Notices of Memoirs. 

 Volcanic Eocks, Ord Hill. By Wm. 



Mackie, M.A., M.D.... ." 561 



Millstone Grit, Yorkshire. By A. 



Gilligan, B.Sc. ... 561 



Silurian Inlier of Usk. By C. I. 



Gardiner, M.A., F.G.S 562 



in. Eeviews. 

 The Making of the Earth. By 

 Professor J. W. Gregory, F.E.S. 563 



O O IsT T El 3Sr T 



age 



The Building of the Alps. By 



Professor T. G. Bonney, Sc.D., 



F.E.S ' ... ... 564 



Geological Survey of Canada 566 



Eecords of the Geological Survey of 



India '\ 567 



South African Geology. By Professor 



E. H. L. Schwarz 568 



Water Supply of Surrey. By Wm. 



Whitaker,'B.A., F.E.S 569 



Oil-finding. By E. H. C. Craig, 



B.A., F.G.S 570 



Sedimentary Deposition of Oil. By 



Murray Stewart, D.Sc, F.G.S. . 570 

 Cotteswold Naturalists' Field Club 572 

 Prehistoric Society of East Angiia . 573 

 Brief Notices : United States and 



W. Australian Geological Surveys 574 



IV. Efforts and Proceedings. 



Geological Society of 

 November 6, 1912 .. 



London, 



574 



V. Correspondence. 

 George Greenwood, M.P. 



576 



LONDON : DIJLAU & CO., Ltd. 



SO HO SQUAllE, ^V 



^ The Volume for 1911 of the GEOLOGICAL MAGAZINE is ready, 

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



