Vol. LVIII of Whole Series. 
Geologica 
Monthly Fournal of Geology. 
WIDPH WHICH IS INCORPORATED 
Wale CZ Olen sh, 
HENRY WOODWARD, LL.D., FR. 
AND 
R. H. RASTALL, Sc.D., M.INst.M.M. 
ASSISTED BY 
Pror. J. W. GREGORY, D.&c.. F.R.S5. 
}. H. HATCH, Pxu.D., M.INst.M.M. 
Prov. J. ©. MARR, S§e.D., F.R.S. 
A. SMITH WOODWARD, LL.D., F.R.S. 
The 
| Magazine 
OR 
EDITED BY 
siz JETHRO J. H. VHALL, Sce.D., F.R.S. 
PRoF. W. W. WATTS, Se.D., F.RB.S. 
HENRY WOODS, M.A., F.R.38. 
JULY, 
1921. 
CONTENTS :— 
“TBAB IM ONMIONIE INICO}N DSSS ain pene ne aa enenee 
ORIGINAT, ARTICLES. 
An American.Geologist : Professor 
J. M. CLARKE. (With Plate V.) 
The Sequence across Central Spits- 
bergen. By Professor J. W. 
GREGOR ae Sia. coc baee socio see 2 
On Ammonites from Spitsbergen. 
1S IDR Oia ISPS lendooheenesencseranan 
Pre- Cambrian Para-Gneisses in 
South Australia. By C. E. 
TILLEY. (With 1 Text-fig.) 
(Concluded mec. coxteret eae. « 
Lower Devonian Fauna of Torquay. 
By Dr. F. R. C. REED 
| ORIGINAL ARTICLES (continued). Page 
An Outline of Chinese Geology. 
By J. 8. LEE. (With Plate VI.) 
(Comm dmai@al.)) sobcosocnnesesnoasnosooe 324 
| REVIEWS. 
| Economic Mineralogy ..... ......... 330 
ChromnumrtOnes ese eeee eee eee 330 
\ Inifevon EeeB a de Saussute...-+et eek. 331 
| Summary of Progress of Geological 
las (SILLA hy, IUCN) oebepatonereaaeécorcc 332 
| Fossil Birds from Corsiea............ 333 
| REPORTS AND PROCEEDINGS. 
Geologists’ Association............... 333 
OBITUARY. 
Mesniene Hourtau. Geeecesseesee sn eshte 334 
Niraehes neo Maicwelligesseercencrease se 336 
LONDON: DULAU & CO., Ltp., 34-86 MarcGarer STREET, 
CAVENDISH SQuarRE, W.1. 
Cloth Cases for Binding may be had, price 2s. Gd. net. 
Price 2s. 6d. 
