No. 679. Vol. LVIII of Whole Series. Price 2s. 6d. 
‘he 
Geological Magazine 
OR 
Monthly Fournal of Geology. 
WITH WHICH IS INCORPORATED _ 
Hak GCGHa@k@CGIsi: 
EDITED BY * 
I 2 ni 
HENRY WOODWARD, LL.D., F.RA. 
nsonlan inex. oN 
AND 
Fie 
, a y, yi 
R. H. RASTALL, M.A. “tiene: wuse®*? 
ASSISTED BY 
Pror. J. W. GREGORY. D.Sc., ¥.R.S. Str JETHRO J. H. TEALL, Sc.D., F.R.S. 
F. H. HATCH, PuH.D., M.INst.M.M. PROF. W. W. WATTS, Sc.D., F.R.S. 
ProF. J. E. MARR, &§¢.D., F.R.S. HENRY WOODS, M.A., F.R.S. 
A. SMITH WOODWARD, LL.D., F.R.S. 
JANUARY, 1921. 
CONTENTS :— 
Page | ORIGINAL ARTICLES (continued). Page 
EH DIRORUAT INORES).cisicrciceeecesecc-< 1 | The Representation of Strati- 
: graphical Divisions by Shading. 
ate eae By Dr. J. W. EVANS, F.R.S. ... 40 
"he Oil Region of the Northern 
Punjab. By Dr. H. PREISWERK. TRIEEDTS 
“(With Plate I and 8 Figs.) The Geology of the British Isles. 
(ovbe continiweds)) ven cs00c----220 = 3 ie Sepa eae 42 
The Interglacial Problem and the ee a ern cee om duane 45 
Glacialand Post-Glacial Sequence Th eee oe ame fPanVectoboacee) 45 
in Northumberland and Durham. Seep RRC On say nee See ee 4 
By Dr. D. WooLACOTT............ 21 Reminiscences of Mr. Henry Keeping 46 
The World’s Copper Production. REPORTS AND PROCEEDINGS. 
By Dr. F. H. HatcH: (With Edinburgh Geological Society ...... 47 
1 Diagram and 4 Tables.)......... 32 | Liverpool Geological Society ...... 47 
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