No. 612. 



Decade VI.— Vol. II.— No. VI. 



Price 2s. net. 



THE 



GEOLOGICAL MAGAZINE 



OB 



^ftontliln Journal of deologn. 



WITH WHICH IS INCORPORATED 



THE GEOLOG-IST. 



EDITED BY 



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



ASSISTED BY 



Pbopessob J. W. GREGORY, D.Sc., F.R.S., P.G.S. 

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

 Ser THOMAS H. HOLLAND, K.C.I E., A.R.C.S., D.Sc., F.R.S., F.G.S. s 

 Db. JOHN EDWARD MARR, M.A.. Sc.D. (Camb.), F.R.S., F.G.S. 

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

 Pboeessob W. W. WATTS, Sc.D., M.Sc, F.R.S., Vice-Pbes. Geol. Soc. 

 Db. ARTHUR SMITH WOODWARD, F.R.S., F.L.S., Pbes. Geol. Soc. 



JUNE, 1915 



OOlTTB^r 



I. Original Articles. Page 



The Solway Basin and its Permo- 

 Triassic Sequence. By Professor 

 J. W. Gregory, D.Sc, F.E.S. 

 (With a Text-figure.) 241 



Petrology of Suffolk 'Box-stones '. 

 By P. G. H. Boswell, D.I.C., 

 B.Sc, F.G.S. (Plate X and 

 3 Text-figures.) 250 



Studies in Edrioasteroidea. By 

 F. A. Bather, M.A., D.Sc, 

 F.R.S. (With a Text-figure.) ... 259 



The Petrology of North-Western 

 Angola. By Arthur Holmes, 

 B.Sc,A.R.C.S.,F.G.S.,F.R.G.S. 

 (Plate XL) 267 



Radio-activity and Earth's Thermal 

 History : A Criticism. By Pro- 

 fessor A. P. Coleman, M.A., 

 Ph.D.,F.R.S.,TorontoUniversity 273 



The Coastal Series of Sediments, 

 East Africa. By H. B. MAUFE, 

 B.A., F.G.S., Director of Geo- 

 logical Survey of South Rhodesia 274 



Page 



Physical Geography. By Philip 

 Lake, 'M. A., F.G.S 277 



Geology of Caithness. By C. B. 

 Crampton and R. G. Carruthers 279 



Model of the A'ssynt Mountains. 

 By Drs. Peach and Home 280 



Geology of Mid-Strathspey and 

 Strathdearn. ByL. W. Hinxman 

 and others 281 



III. Reports and Proceedings. 

 Geological Society of London — 



April 14, 1915 282 



April 28 283 



May 12 284 



Geological Society, Glasgow 285 



Zoological Society, London 286 



IV. COEBESPONDENCE. 

 J. B. Scrivenor 286 



V. Obituary. 



F. W. Millett 288 



YI. Miscellaneous. 

 Addition to Hull Museum 288 



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The Volume for 1914 of the GEOLOGICAL MAGAZINE is ready, 

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