Vol. L X X X V , N o 3 3 7 . P i n t 1.

T H E

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APRIL 19th, 1929.

[With Ten Plates, illustrating Papers by Dr. S. Smith & Prof. S. H. Reynolds, Dr. G. H. Mitchell, Dr. F. B. A. Welch, and Mr. S. G. Clift & Dr. A. E. Trueman.]

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~rt~i~tat. Prof. John Walter Gregory, LL.D., D.Se., F.R.S.

Francis Arthur Bather, M.A., D.Se., Edward Greenly, D.Se. F.R.S. Horace Woollaston Monckton, Treas.L,S.

Prof. Edmund Johnston Garwood, ~.A., Sc.D.. F.R.S.

~ttrttarit~. Walter Campbell Smith, l~I.O., lYI.A. ] Prof. William Thomas Gordon, M.A.,

I D.Sc., F.R.S.E. ~orti~r~ bttrttar~. ~rta~urtr.

Sir Arthur Smith Woodward, LL.D., Frederick Noel Asheroft, M.A., F.C.S. F.R.S., F.L.S.

Frederick Noel Asheroft, M.A., F.C.S. Francis Arthur Bather, M.A., D.Sc., F.R.S. Ernest Edward Leslie Dixon, B.Sc. James Archibald Douglas, M.A., D.Sc. Prof. William George Fearnsides, M.A. Prof. Edmund Johnston Garwood, M.A.,

Se.D., F.R.S. Prof. Albert Gilligan, D.Se., B.Sc. Prof. William Thomas Gordon, 1VI.A.,

D.Sc., F.R.S.E. Edward Greenly, D.Sc. Prof. John Walter Gregory, LL.D., D.Se..

F.R.S. Leonard Hawkes, D.Sc. Robert Stansfield Herries, l~I.A.

Finlay Lorimer Kitchin, M.A., Ph.D., F.R.S.

Horace Woollaston Monckton, Treas.L.S. John Pringle. James Romanes, M.A. Walter Campbell Smith, M.C., M.A. Prof. Henry Hurd Swinnerton, D.Sc. Herbert Henry Thomas, M.A., Sc.D., F.R.S.

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~/,ibrariam Arthur Greig.

~muantnt ~ttrttay~. L. L. Belinfante, I~.Sc.

~ f ~ t a i t t ~£fl0rarfam Norman E. Pettitt.

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Dr. F. A. Bather. Prof. E. J. Garwood. Prof. W. W. Watt~. Dr. J. A. Douglas. Dr. Herbert H. Thomas. Sir Arthur Smith Prof. W. G. Fearnsides. Dr. C. E. Tilley. Woodward.

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CONTENTS.

Pages Proceedings of the Geological Society . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i-xlviii

PAPERS READ.

Page I. Dr. Stanley Smith & Prof. S. H. Reynolds on the Carboniferous Section at

Cattybrook, near Bristol (Plates I & II) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2. Dr. G. H. Mitchell on the Succession and Structure of the Borrowdale Volcanic Series in Troutbeek, Kentmere, and the Western Part of Long Sleddale, Westmorland (Plates I I I -VI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3. Dr. F. B. A. Welch on the Geological Structure of the Central l~Iendips (Plates VII & VIII) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

4. Mr. S. G. C l i f t & Dr. A. E. Trueman on the Sequence of Non-l~Iarine Lamellibranehs in the Coal Measures of Nottinghamshire and Derbyshire (Plates IX & X) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

[The Editor of the Quarterly Journal is directed to make it known to the Public that t h e A u t h o r s a l o n e a r e r e s p o n s i b l e f o r t h e f a c t s a n d o p i n i o n s e o n t a i n e d in t h e i r r e s p e c t i v e P a p e r s , a n d f o r t h e c o r r e c t n e s s of t h e i r r e f e r e n c e s . ]

A u t h o r s d e s i r o u s of c o m m u n i c a t i n g p a p e r s t o t h e S o c i e t y w i l l be s u p p l i e d , on a p p l i c a t i o n to t h e P e r m a n e n t S e c r e t a r y , w i t h a c o p y of ' I n s t r u c t i o n s to A u t h o r s ' , i s s u e d by t h e C o u n c i l on t h e r e c o m m e n d a t i o n of t h e P u b l i c a t i o n C o m m i t t e e .

The Library at the Apartments of the Society is open every Week Day from Ten o'clock until Five, except on Saturdays (when the hours are from 10 to 1).

Vol. L X X X V , N o 3 3 8 . PART 2.

THE

QUARTERLY JOURNAL

O F T H E

GE()L()GICAL SOCIETY.

E D I T E D B Y

THE PERMANENT SECRETARY.

JUNE 20th, 1929.

EWith Seven Plates, illustrating Papers by Mr. R. !~urray-Hughes & Mr. A. A. Fitch, and by Mr. F. W. Shotton.]

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LIST OF THE OFFICERS A N D COUNCIL OF THE

GEOLOGICAL SOCIETY OF LONDON. . . . . . . . . . ~

Elected February 15th, 1929.

Prof. John Walter Gregory, LL.D., D.Sc., F.R.S.

~itt:~rt~i~tnta. Francis Arthur Bather, M.A., D.Sc., Edward Greenly, D.Sc.

F.R.S. Horace Woollaston Monekton, Treas.L,8. Prof. Edmund Johnston Garwood, M.A.,

Sc.D.. F.I~.S.

D t t r t t a r i t~ . Walter Campbell Smith, M.C., M.A. Prof. William Thomas Gordon, M.A.,

D.Sc., F.R.S.E.

~ortqln ~ttrttat'12 ~rta~urtr. Sir Arthur Smith Woodward, LL.D., Frederick Noel Asheroft, M.A., F.C.S.

F.R.S., F.L.S.

Frederick l~oel Ashcroft, M.A., F.C.S. Francis Arthur Bather, M.A., D.Sc., F. 1~ .S. Ernest Edward Leslie Dixon, B.Sc. James Archibald Douglas, M.A., D.Sc. Prof. William George Fearnsides, M.A. Prof. Ednmnd Johnston Garwood, M.A.,

Sc.D., F.R.S. Prof. Albert Gilligan, D.Se., B.Sc. Prof. William Thomas Gordon, M.A.,

D.Sc., F.R.S.E. Edward Greenly, D.Sc. Prof. John Walter Gregory, LL.D., D.Sc.,

F.R.S. Leonard Hawkes, D.ge. Robert Stansfield Herries, ]V[.A.

Finlay Lorimer Kitchin, M.A., Ph.D., F.R.S.

Horace Woollaston Monekton, Treas.L.S. John Pringle. James Romanes, M.A. Walter Campbell Smith, M.C., M.A. Prof. Henry Hurd Swinnerton, D.Sc. Herbert Henry Thomas, M.A., Sc.D.,

F.R.S. Cecil Edgar Tilley, Ph.D., B.Sc., A.I.C. Prof. William Whitehead Watts, LL.D.,

Sc.D., M.Sc., F.R.S. Leonard Johnston Wills, M.A., Ph.D. Sir Arthur Smith Woodward, LL.D.,

F.R.S., F.L.S.

gibrarian. Arthur Greig.

~ t r m a n t n t ~ t t r t t a l ' ~ . L. L. Belinfante, M.Se.

~ i ~ t a n t ~l, ib ra r iam Norman E. Pettitt.

S T A N D I N G P U B L I C A T I O N COMMITTEE. Prof. J. W. Gregory, President.

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Dr. F. A. Bather. Prof. E. J. Garwood. Prof. W. W. Watts. Dr. J. A. Douglas. Dr. Herbert H. Thomas. Sir Arthur Smith Prof. W. G. Fearnsides. Dr. C. E. Tilley. Woodward.

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NEW AND RECENT GEOLOGICAL WORKS SEDIMENTARY PETROGRAPHY. By HENRY B. MI~NER, M.A.,

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CONTENTS.

Pages Proceedings of the Geological Society, Session 1928-29, including the

Anniversary Address of the President . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xlix-cxxviii

PAPERS READ.

Page

5. Mr. R. l~urray-Hughes & Mr. A. A. Fitch on the Geology of Part of North- Western Rhodesia (Plates XI-XV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

6. Mr. F. W. Shotton on the Geology of the Country around Kenilworth ...... 167

[The Editor of the Quarterly Journal is directed to make it known to the Pablic that t h e A u t h o r s a l o n e a r e r e s p o n s i b l e fo r t h e f a c t s a n d o p i n i o n s c o n t a i n e d in t h e i r r e s p e c t i v e P a p e r s , a n d fo r t h e c o r r e c t n e s s of t h e i r r e f e r e n c e s . ]

~ u t a o r s d e s i r o u s of c o m m u n i c a t i n g p a p e r s to t h e S o c i e t y w i l l be s u p p l i e d , o~ a p p l i c a t i o n to t h e P e r m a n e n t S e c r e t a r y , w i t h a c o p y of ~ I n s t r u c t i o n s to A u t h o r s ' , i s s u e d by t h e C o u n c i l on ~he r e c o m m e n d a t i o n of t h e P u b l i c a t i o n C o m m i t t e e .

The Library at the Apartments of the Society is open every Week Day from Ten o'clock until Five, except on Saturdays (when the hours are from 10 to 1).

Vol. L X X X V , PART 3.

N o . 3 3 9 .

T H E

QUARTERI:Y JOURNAL

OF THE

GE()LOGICAL SOCIETY.

EDITED BY

THE PERMANENT SECRETARY

SEPTEMBER 23rd, 1929.

EWith Five Plates, illustrating Papers by Profi W. J. Pugh, Dr. A. Jowett & Prof. J. K. Charlesworth, and Dr. K. S. Sandford.J

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Prof. John Walter Gregory, LL.D., D.Sc., F.R.S.

Francis Arthur Bather, M.A., D.Sc., Edward Greenly, D.Sc. F.R.S. Horace Woollaston Monckton, Treas.L,S.

Prof. Edmund Johnston Garwood, M.A., Sc.D.. F.R.S.

~ttrttarit~. Walter Campbell Smith, M.O., M.A. Prof. William Thomas Gordon, M.A.,

D.Sc., F.R.S.E.

~ortign-bttrttarD. ~rta~ut'tr. Sir Arthur Smith Woodward, LL.D., Frederick Noel Asheroft, M.A., F.C.S.

F.R.S., F.L.S.

Frederick Noel Ashcroft, M.A., F.C.S. Francis Arthur Bather, M.A., D.Se., F.R.S. Ernest Edward Leslie Dixon, B.Sc. James Archibald Douglas, M.A., D.Se. Prof. William George Fearnsides, M.A. Prof. Edmund Johnston Garwood, M.A.,

Sc.D., F.R.S. Prof. Albert Gilligan, D.Se., B.Sc. Prof. William Thomas Gordon, M.A.,

D.Sc., F.R.S.E. Edward Greenly, D.Sc. Prof. John Walter Gregory, LL.D., D.Sc.,

F.R.S. Leonard Hawkes, D.Sc. Robert Stansfield Herries, M.A.

Finlay Lorimer Kitchin, M.A., Ph.D., F.R.S.

Horace Woollaston Monckton, Treas.L.S. John Pringle. James Romanes, M.A. Walter Campbell Smith, M.C., M.A. Prof. Henry Hurd Swinnerton, D.Sc. Herbert Henry Thomas, M.A., Se.D.,

F.R.S. Cecil Edgar Tilley, Ph.D., B.Sc., A.I.C. Prof. William Whitehead Watts , LL.D.,

Se.I)., M.Se., F.R.S. Leonard Johnston Wills, M.A., Ph.D. Sir Arthur Smith Woodward, LL.D.,

F.R.S., F.L.S.

~ibrarian. Arthur Greig.

~mnantnt ~ttrttauv. L. L. Belinfante, M.Se.

~ i ~ t a n t ~£it)rarian. :Norman E. Pett i t t .

S T A N D I N G P U B L I C A T I O N C O M M I T T E E . Prof. J. W. Gregory, President.

Mr. W. Campbell Smith. ~ Secretaries. Hr. F. N. Ashcroft, Treasurer. Prof. W. T. Gordon. j

Dr. F. A. Bather. Prof. E. J. Garwood. Prof. W. W. "Watf~. Dr. J. A. Douglas. Dr. Herbert H. Thomas. Sir Arthur Smith Prof. W. G. Fearnsides. Dr. C. E. Tilley. Woodward.

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SEss Io~ 1 9 2 9 - 1 9 3 0 . 1929.

Adjourned Meeting, Wednesday, October 23rd. Wednesday, November . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6"--20

,, December . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4" - -18" 1930.

Wednesday, January . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8" - -22" ,, February (Anniversary Meeting,

Friday, February 21st) ......... 5" - -26" ,, March . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2 - - 2 6 " ,, April . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9a- -30 ,, H a y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14"--28

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CONTENTS.

Pages Proceedings of the Geological Society, Session 1928-29 . . . . . . . . . . . . . . . . . . . . . . . . cxxix-cxli

PAPERS READ.

Page

7. Mr. E. St. John Burton on the tIorizons of Bryozoa (Polyzoa) in the Upper Eocene Beds of Hampshire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223

8. Prof. W. J. Pugh on the Geology of the District between Llanymawddwy and Llanuwchllyn (Plate XVIII) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242

9. Dr. A. Jowett & Prof. J. K. Charlesworth on the Glacial Geology of the Derbyshire Dome and the Western Slopes of the Southern Pennines (Plate XIX) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307

10. Prof. J. K. Char]esworth on the South Wales End-Moraine (Plates XX & XXI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 335

11. Dr. K. S. Sandford on the Erratic Rocks and the Age of the Southern Limit of Glaciation in the Oxford District (Plate XXII) . . . . . . . . . . . . . . . . . . 359

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CONTENTS.

PAPERS READ.

Page 12. Mr. Maurice Black on Drifted Plant-Beds of the Upper Estuarine Series

of Yorkshire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 389

13. Dr. C. A. Matley & Mr. F. Higham on the Basal Complex of Jamaica, with special reference to the Kingston District (Plates XXIII-XXV)..o 440

14. Dr. K. S. Sandford on the Pliocene and Pleistocene Deposits of Wadi Qena and of the Nile Valley between Luxor and Assiut (Plates XXVI-XXXI) 493

15. Dr. F. hi. Trot ter on the Glaciation of Eastern Edenside, the Alston Block, and the Carlisle Plain (Plates XXXII-XXXIV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 549

16. Sir Douglas Mawson on some South Australian Algal Limestone in Process of Formation (Plates XXXV-XLI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 613

17. Dr. J. A. Douglas on a Marine Triassic Fauna from Eastern Persia (Plates XLII -XLVI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 624

18. Mr. R. O. Roberts on the Geology of the District around Abbe~'-Cwmhir, Radnorshire (Plate XLVII) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 651

ET1TLE-PAGE, CONTENTS, and INDEX tO VET,. LXXXV.~

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