No. 689. Vol. LVIII of Whole Series. Price 2s, 6d. 
Geological Magazine 
Monthly Journal of -Geology. 
WITH WHICH IS INCORPORATED 
Viale “Cae OLOeist 
Founded in 1864, by the late DR. HENRY WooDWARD, F.R.S. 
HD LOR. ameria | hyabo)lyarliilEs a sv.M.M. 
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ASSISTED BY 
Pror. J. W. GREGORY. D.8c., F.B.S. sm RO J. H. TEALL, 66 eB F.RS. 
F. H. HATCH, Pu.D., M.Inst.M.M. PRo#N Seal sc. Ors. 
Pror, J. E. MARR, Sc.D., F.B.S. HE Ww ime 
A. SMITH WOODWARD, WL.D., I'.R.S J 
WW 4 
ae Musee 
NOVEMBER, 1921. _ 
CONTENTS :-— 
Page | ORIGINAL ARTICLES (continued). Page 
Henry Woodward ........ vandbeonondo90 481 | Platinum-bearing Rocks in the 
Lizard District. By G. MCPHER- 
! 2 
ORIGINAL ARTICLES. SON and T. oa Pe Sera nenceee 512 
EVIEWS. 
The Magnesian Group of Igneous 
z ; z Q Geology of Anglesey .........:.....065 515 
0 + WIXBY 2c. cee ee eee 5 2) ; : 
Hog BY - ». ae : eo Appendages of Trilobites .....0.0.0.. 521 
Some Points in Petrographic Tuead and Zine Ores <...........5.+.- 523 
Nomenclature. Bye Cie Wie Arthur’s Seat, Edinburgh............ 525 
DYRRELL.«....0eeseseeeeeeeeree eters 494 | Meonomic Geology........-....---008++ 525 
A Mammoth Molar from Stroud. Products of the Empire.............-. 526 
By F. Raw. (With Plate X.)... 502 | British Scientific Books............... 527 
The Primary Zones of Cornish Itineraries in Anglesey ..............- 527 
Lodes. By lk. H. DAVISON. REPORTS AND PROCEEDINGS. 
(Aidan 2 Ter) coc opoeboooncadseacuaoce 505 | Wdinburgh Geological Society...... 528 
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