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Decade VI.— Vol. V.— No. X. 



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THE 



GEOLOGICAL MAGiZlNE 



J-lonthhj Jourmil of ('ieologi}. 



WITH WHICH IS INCOHPORATED 



THE G-EiOLOG-IST. 



HENRY 



EDITED BY 



WOODWARD, LL.D.. 



F.R.S.. F.G.S. 



&.C. 



ASSISTED EY 



Pkofrssok J. W. GREGORY, D.Sc, F.R.S., F.G.S. 

 SiE THOMAS H. HOLLAND, K.C.I.E.. A.R.C.S., D.Sc, F.R.S., Vice-Pres. G.S. 

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

 Sir JETHRO J. H. TEALD, M.A., Sc.D. (Camb.), LL.D., F.R.S., F.G.S. 

 Professor W. W. WATTS, Sc.D. (Camb.), M.Sc, F.R.S., F.G^ 

 Dr. ARTHUR SMITH WOODWARD, P.R.S., F.L.S., YlCF^-Fje^M^tVaiiic.l Q^ 



OCTOBEH, 1918. 



OOn^TElD^TS. 



Page 

 The Imperial Mineral Resources 

 Bureau 43.3 



I. Original Articles. 



British Carboniferous Goniatites, 

 with some New Species. By 

 Wheelton Hind, M.D., D.Sc, 

 F.G.S., etc. (Plate XVI.) 434 



Recent Geological History of the 

 Baltic and Scandinavia. By Sir 

 Henry Howorth , K . C . I . E . , 

 F.R.S., F.S.A., F.G.S. (Con- 

 cluded.) 451 



Fossil Arthropods from the Car- 

 boniferous of Cape Breton, Nova 

 Scotia, etc. By Henry Wood- 

 ward, LL.D., F.R.S. (With 

 five Text-ligures.) 462 



Coal-balls near A-mbergate, Derby- 

 shire. By W. D. Varney, B.Sc. 

 (With one Text-figure.) 471 



I II. Reviews. Page 



i Summary of Progress, Geological 



I Survey of Great Britain 473 



i British Museum Return 474 



The Work of Local Museums 474 



British Supplies of Potash Felspar. 

 By Professor P. G. H. Boswell, 



D.Sc, F.G.S 475 



Sands for Glass-making 476 



Splitting of Coal-seams. By Pro- 

 fessor P. F. Kendall, F.G.S. ... 

 Western Australian Geology. By 



A. G. Maitland, F.G.S. ... 

 Tazin and Taltson Rivers, N.W. 

 Territories, Canada. By Charles 



I Camsell 478 



Frozen Muck Soils, Klondike 

 i District. By J. B. Tyrrell, 



F.R.S. C 479 



I III. Correspondence. 



i* J. Wilfrid .Jackson 479 



Dr. Wheelton Hind 480 



477 



477 



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