THE

QUARTERLY JOUItNAL

OF THE

GEOLOGICAL SOCIETY OF

EDITED BE

THE ASSISTANT-SECRETARY OF THE GEOLOGICAL SOCIETY.

Quod si cui mortalium cordi et curse sit non tantum inventis h~erere, atque iis ut|, sed ad ulteriora penetrate ; atque non disputando adversarium, sed opere naturam vincere ; denique non belle et probabiliter opinari, ~d certo et ostensive scire; tal~, tanquam veri scientiarum fllii, nobia (~i videbitur) se adjtmgant. ~Novum Organum, Preefatio.

VOLUME THE THIRTY-FOURTH.

1878.

LONDON LONGMANS, GREEN, READER, AND DYER. PARIS: FLIED, KLINCKSIECK, ll RUE DE LILLE ; F. SAVY, 24 RUE HAUTEFEUILLIL LEIPZIG : T. O. WEIGEL.

SOLD ALSO AT THE APARTMENTS OF THE SOCLETY,

MDCCCLXXVIII. u.f t

OFFICER8

GEOLOGICAL SOCIETY OF LONDON

Elected February 15, 1878.

~re~i~tnt, H. Clifton Sorby, Esq., F.R.S.

Robert Etheridge, Esq., F.R.S. I Prof. J. Prestwich, M.A., F.R.S. John Evans, Esq,, D.C.L., LL.D., F.R.S. [ Prof. A. C. Ramsay, LL.D, F.R.S. br Prof. T. G. Bonney, M.A., F.R.S. I Prof. J. W. Judd, F.R.S. :lFarcign bccrttar~, Warington W. Smytb, Esq., M.A., F.R.S.

grr162 J. Owyn Jeffreys, Esq., LL.D., F.R.$.

H, Bmlevman, Esq. Prof. J. W. Judd, F.R.S. Prof. T. G. Bonney, M.A. J. Morris, Esq. Prof. W. Boyd Dawkins, M.A., F.R.S. J. A. Phillips, Esq. Prof. P. Martin Duncan, M.B., F.R.S. Prof. J. Prestwich, M.A., F.R.S. , EJq~, F.R.8, F. G. H. Pric~, Esq. John Evans, Esq., D.C.L., F.R.S, Prof. A. C. Ramsay, LL.D., F.1LS. , Esq. R. H. Scott, Esq., M.A., F.R.S. W. ti. Hudleston, Esq., M.A. Warington W. Smyth, Esq., M.A., F.R.S. Prof. T. MCKenny Hughes, M.A. H. Clifton Sorby, Esq., F.R.S. J. W. Hulke, Esq., F.R.S. Admiral T. A. B. Spratt, C.B., F.R.S. J. Gwyn Jeffreys, Esq., LL.D., F.R.S. Bey. T. Wiltshire, M.A., F.L.S. Prof. T. Rupert Jones, F.R.S.

$,ai, tant~hctrttarl2, Kibrarian, an~[ Curator. w. s. Dallu, Eul., LL.$.

~[r [ 1Librarp ~i~tant. Mr. W. W. Leighton. [ Mr. W. Rupert Jones. TABLE OF CONTENTS.

Page ABBAY, Rev. R., M.A. On the Building-up of the White Sinter Terraces of Roto-M~hhn~ ...... 170 BONNEV, Rev. T. G. On the Serpentine and associated Igneous Rocks of the Ayrshire Coast ...... 769 Note on the Microscopic Structure of some Welsh Rocks.. 144 --, and Roy. E. HILL, M.A. The Precarboniferotm Rocks of Charnwood :Forest.--Part II. (Plate X.) ...... 199 CALLaWaY, C., Esq., M.A., D.Sc. On the Quartzites of Shropshire 754 CLOVOH, C. T., Esq., B.A., and W. GUNN, Esq. On the Di,covery of Silurian Beds in Tee~ale ...... 27 DA~NTR~E, R., Esq. Note on certain Modes of Occur:ence ef Gold in Australia. (Plates XVII. & XVIII.) ...... 431 DAUBR~.E, Prof. A. On Points of Similarity between Zeolitic and Siliceous Incrustations of recent :Formation by Thermal Springs, and those observed in Amygdaloids and other altered Volcanic Rocks. (Plate IV.) ...... 73 DAVIES, T., Esq. Note on a Rock-specimen from the Centre of the so-called Porphyritic Mass to the East of Tal-y-sarn ...... 152 On the ~Iicroscopic Structure of some Dimetian and Pebi- dian Rocks of Pembrokeshire ...... 164 DAWKINS, Prof. W. BOYD, M.A. Contributions to the History of the Deer of the European Miocene and Pliocene Strata ...... 402 DAWSOn, G. M., Esq., D.Sc. On the Superficial of British Columbia. (Plate V.) ...... 89 DE RANCE, C. E., Esq., and Capt. H. W. ~EILDEN. Geology of the Coasts of the Amtic Lands visited by the late British Expedition under Capt. Sir George Nares, R.N., K.C.B., I~.R.S. (Plate XXIV.) ...... 556 E~Ys~ J. D., Esq. On Sand-worn Stones from New Zealand ...... 86 ETH~.Rn)G~, R., Esq. Palseontology of the Coasts of the Arctic Lands visited by the late British Expedition under C a~. Sir George Nares, R.N., K.C.B., F.R.S. (Plates XXV.-XX:~).. 568 TABLE OF CONTENTS. Page ETKERIDGE, R., Jun., Esq. On our Present Knowledge of the Inver- tebrate Fauna of the Lower Carboniferous or Calciferous Sand- stone Series of the Edinburgh Neighbourhood, especially of that Division known as the Wardie Shales; and ca the First Ap- pearance of certain Species in these Beds. (Plates I. & II. ).. 1 Further Remarks on Adherent Carboniferous Produetidm. 498 ]~h~I)EZ~, Capt. tI. W., and C. E. DE RANCh, Escl. Geology of the Coasts of the Arctic Lands visited bythe late British Expedition under Capt. Sir George Nares, R.N., K.G.B., F.R.S. (Plate XXlV.) ...... 556 FOST~.R, C. L~. NF.v~., Esq., B.A., D:Sc. Onthe Great Flat Lode south of Redruth and Camborae, and on some other Tin-deposits formed by the Alteration of Granite (Plate XXX.) ...... 640 . On some Tin Stockworks in Cornwall ...... 654 (~ARDNER, J. S., Esq. On the Cretaceous Dentaliid~e. (Plate III.) 56 Gm-KI~, JAMES, Esq., LL.D. On the Glacial Phenomena of the L~ Island, or Outer Hebrides. Second Paper. (Plate ~III.) ...... 819 ~, and Prof. A. C. RAMSAY. On the Geology of Gibraltar. (Plate XXlII.) ...... 505 Go])~aEY, J. G. H., Esq. Notes on the Geology of Japan ...... 542 GUNN, W., Esq., and C. T. CLOUG~, Esq., B.A. On the Discovery of Silurian Beds in Teesdale ...... 27 HEER~ Prof. O. Notes on Plants discovered in GrinneU Land b_y Capt. It. W. Feilden, Nattu'alist of the English North-Polar Expedition ...... 66 I-I,c~s, H., Esq., M.D. On some Pre- (Dimetian and Pebidian~Rocks in Caernarvonshire. With a Note by T. DAVIES, _sq ...... 147 . Additional Notes on the Dimetian and Pebidian Rocks of Pembrokeshire. With an Appendix by T. DAVIES, Esq ...... 153 On the Metamorphic and Overlying Rocks in the Neigh- bourhood of Loch Maree, Ross-shire ...... 811 HILL, Rev. E., M.A., and the Rev. T. G. Bo~EY, M.A. The Precarboniferous Rocks of Charnwood Forest.--Part II. (Plate X.) ...... 199 HUSHEs, Prof. T. I%I'K., M.A. On the Pre-Cambrian Rocks of Bangor. With a Note on the Microscopic Structure of some Welsh Rocks, by Prof. T. G. BONN~Y, i%I.A...... 137 HTJLKE, J. W., Esq., F.R.S. Note on two Skulls from the Wealden and Purbeck Formations indicating a new Subgroup of Croco- dilia. (Plate iV.) ...... 377 - . .. Note on an Os articulate, presumably that of Iguanodon Mantelli ...... 744 JONES, Prof. T. RVP~RT~ F.R.S. Note on the Foraminifera and other Organisms in the Chalk of the Hebrides ...... 789 TABLE OF CONTENTS. Page JUDy, Prof. J. W. The Secondary Rocks of Scotland. Third Paper. The Strata of the Western Coast and Islands. With a Note on the Foraminifera and other Organisms in the Chalk of the Hebrides, by Prof. T. RUPERT JONES (Plate XX.XL).. 660 KEEPING, WALTER, ESq. On ]PelanecMnus, a new Genus of Sea- urchins from the Coral Rag. (Plate XXXIV.) ...... 924 LAPWORTH, C., Esq. The Moffat Series. (Plates XI.-XIII.) .... 240 MAttR, J. E., Esq. On some well-defined Life-zones in the Lower Part of the Silurian (Sedgwick) of the Lake-district ...... 871 MAW, G., Esq., F.L.S. On an Unconformable Break at the Base of the Cambrian Rocks near Llanberris ...... 764 Moo~t~, C~ARLV.S, Esq. Notes on the Paleeontology and some of the Physical Conditions of the Meux-well Deposit"s ...... 914 N]~WTON, E. T., Esq. Notes on a Crocodilian Jaw from the Coral- lian Rocks of Weymouth. (Plate XVI.) ...... 398 . Description of a new Fish from the Lower Chalk of Dover. (Plate XIX.) ...... 439 Remarks on Saurocephalus, and on the Species which have been referred to that Genus ...... 784 Owner, Prof. R., C.B. On Argillornis longipennis, Ow., a large Bird of Flight, from the Eocene Clay of Sheppey. (Plate VL) .... 124 On the Influence of the Advent of a higher Form of Life in modifying the Structure of an older and lower Form ...... 421 L .--. On the Affinities of the Mosasaurid~e, Gervais, as exempli- fied in the Bony Structure of the Fore Fin ...... 748 I~ACH, C. W., Esq. On the Circinate Vernation, Fructification, and Varieties of 8phenopteris a~iuis, and on Staphylopteris (?) t)eaehii of Etheridgo and Balfour, a Genus of Plants new to British Rocks. (Plates YII. & VIII.) ...... 131 PHIr.~.la, s, J. A.~ Esq. On the so-called "Greenstones" of Central and Eastern Cornwall. (PlatesXX.-XXII.) ...... 471 PRESTWICH, Prof. J. On the Section of Messrs. Meux & Co.'s Artesian Well in the Tottenham-Court Road, with Notices of the Well at Crossness, and of another at Shoreham, Kent ; and on the probable Range of the Lower Greensand and Palaeozoic Rocks under London ...... 902 RAmsAY, Prof. A. C., LL.D., and JA~s GEIKn~, Esq., LL.D. On the Geology of Gibraltar. (Plate XXHI.) ...... 505 RE~,v~ T. M., Esq. The Submarine Forest at the A.lt Mouth .... 447 .. On a Section through Glazebrook Moss, Lancashire ...... 808 SEELEY, Prof. H.G. On new Species of Procolop~ion from the Cape Colony preserved in Dr. Grierson's Museum, Thornhill~ Dum- friesshire ; with some Remarks on the Aifmities of the Genus. (Plate XXXII.) ...... 796 vi TABLE OF CONTENTS.

SH01VE, W., Esq. On the Glacial Deposits of West Cheshire, to- Page gether with Lists of the Fauna found in the DHft of Cheshire and adjoining Counties ...... 383 TOKES, R. F., Esq. On the Stratigraphical Position of the Corals of the Lias of the Midland and Western Counties of and of South . (Plate IX.) ...... 179 TwIsDElv, Rev. J. F., M.A. On possible Displacements of the Earth's Axis of FigLtre producedby Elevations and Depressions of her Surface ...... 35 USSHV.R, W. A. E., Esq. On Terminal Ctuwature in the South- western Counties ...... 49 The Chronological Value of the Pleistocene Deposits of Devon ...... 449 ,. On the Chronological Value of the Triassic Strata of the South-western Counties ...... 459 VAN-DEN BROECX, M.E.. On some Foraminifera from Pleistocene Beds in Ischia. Preceded by some Geological Remarks by A. W. WATERS, Esq ...... 196

WATERS, A W "~ E~~A" Geological. Remarks on some Foraminifera from Pleistocene Beds m ~schla ...... 196 Wn~cnmLL, N. H., Esq. On the Recession of the Falls of St. Anthony ...... 886 WYmrE, A. B., Esq. Notes on the Physical Geology of the Upper Punjs (Plate XIV.) ...... 347

PROCEEDINGS.

Annual Report ...... 6 List of Foreign Members ...... ' 5 List of Foreign Correspondents ...... ,6 List of Wollaston Medallists ...... 17

List of Murchison Medallists ...... x g List of Lyell Medalllsts ...... ~9 List of Bigsby Medallists ...... ~9 Financial Report ...... 2o Award of the Medals &c ...... ~7 Anniversary Address ...... 34 Donations to the Library (with Bibliography) ...... $, LIST OF THE FIGURED AND DESCRIBED IN THIS VOLUME.

tin this list, those fossils the names of which are printed in Romau type have been previously described.]

I I t

PLANTE~ Arctic r~io~ .,-t Slaphylopteris?$pheu~176f. 5-7 graeilisaflinis...... P1. vii. & Pl'-l|( Silurian ...... Itt f[ 574 Peachii. Pl. viii.J Carboniferous ...] Seetlaud ...... ]~3 f. 1-4 ...... 1~

SPONGI.~. g75 2t~qvtac~lit..oecidentalis ~r~ticm, ...... jr~ISUur~n ...... Areticresdsn,{I ~7' ~zonmtopora concentrica ...... /Silurian ...... Bessele Bay ...... ~ 575

C(ELENTE~ATA. ( ~,drozoa. ) M~176176176 I t pingeri. PL xxv. f. I ...... Silurian ...... Arctic regions ... 577

( ~tinozoa.) Alveolites, sp ...... / 582 Ampl~z'mFsildeni. Pl. xxvi. f. 3... | ,sp. Pl. xxvi. L4 ...... ~. Silurian ...... Arctic regions 589 Arachnophyllum Richardsoni ...... | .585 Calophyllum phragmoceras ...... / 585 Chmtetes (tumidus ?) ...... Arctic regions 610 Ch~etete#,sp. P1. ii. f. 33 ...... 3 Carboniferous.. Edinburgh ..... 8 Chonophyllum (magnificum). Pl. xxviii, f. 3 ...... Silurian ...... Arctic regtous 584 Cyathophyllum articulatum ...... 3 584 ,oo Ylll :FOSSILS FIGURED AND D~SCRIBEDo

Name of Species. Formation. Locality. Page.

C(ELENTERATA (continued.)

(.4etinozoa, continued.)

Cyelolites euimlifo~nis. P1. ix. L 2,3 ...... Lias ...... England ...... 191 Favistella Franklini ...... ( 586 - reticulata ...... 586 Favosites alveolaris ...... 580 gothlandicus ...... 579 8p. ********************************* 581 Halysites catenulatus ...... Silurian ...... Arctic regions 582 f. 1 , var. Feildeni. PI. xxviii. ..,...... o...... ,...... 582 ,var. Harti. P1. xxviii. f. 2 ,...... ~ ...... 583 Heliolites megastomus ...... L 581 Lithostrotion junceum ...... Carboniferous... Arctic regions ... 610 Montlivaltia exeavaga ...... 192 foliacea. PI. ix. f. 10 ...... 191 L papyracea. PI. ix. L 9 ...... 1 193 patula ...... ~ Lias ...... England ...... 186 . rhcetica ...... I 180 . , rugosa ...... Jl 187 : ? tuberculata. P1. ix. f. 7, 8... J 192 Sarcinula organum ...... 586 Strephodes Austini ...... L 587 Syringopwra parallela. PI. xxvi. t Silurian ...... Arctic regions L1 ...... , 583 Syringopora, sp ...... Carboniferous... Arctic regions.. 609 T/~amnastr~ea Etheridgei. P1. ix. f. 4 ...... /, 190 Thecosmilia Martini ...... L ~Lias England ...... 186 , #ocialis. PI. ix. f. 5, 6 ...... [[ ...... 187 Terquemi ...... I I ]81 Tricl/closeris ~lnningi. PI. ix. L 1... J [ 190 Zaphrentis, sp ...... / I 587 L o.0~k~ P1. xxvi f. 2 - /...... " ...... ~ vuunan ...... Arctic regions 588 ' Lproanca) ...... ! I 588 .. ,sp, Pl, xxviii. L5 ...... /I 588

ECHINODERMATA.

Pelanee)ffnuecorallinu#. Pl. xxxiv. [Corallian ...... l Wiltshire ...... [ 928

ANNELIDA.

Spirorbiscarbonarius. Pl.i.f. l, 2}[Carboniferous... I Edinburgh ...... I Serpulites carbonarius. Pl. i. f. 3... FOSSILS FIO~KD AND DESCRI~o ix

Name of Species. I Formation. Locality. ]Page.

CRUSTACEA.

Asaphus (tyrannus ?) ...... 591 Bronteus flabellifcr ...... / 590 (hibernicus ?) ...... Silurian ...... Arctic regions 590 Calymene, sp ...... | 591 Enerinurus lmvis ...... ) 592 Phacops (Chasmops) macroura ...... 884 ,, (Odontochile) mucronatus ... 884 Silurian ...... Lake-district ( ) obtusicaudatus ...... [ 885 , sp ...... ) 884 Proems, sp ...... Silurian ...... Arctic regions 592

POLYZOA.

Fenestella ? arctica ...... 6]8 - sp. (cribrosa ?) ...... 619 - sp ...... 620 Phyllopora, sp ...... 627 Polypora grandis ...... Caxboniferous ... Arctic regions 621 . megastoma ...... 621 -, biarmica. PI. xxviii, f. 4 ...... 622 sp ...... 624 Ramipora Hochstetteri ...... 627

MOLLUSCA.

( Braehioyoda.)

Atrypa Mansonii ...... ] 596 596 phoca ...... [ Silurian ...... Arctic regions . reticularis ...... | 596 Chonetes striatella ...... j 595 Discina nitida. PI. i. L 4-6 ...... Lingula mytiloides. Pl.i.f. 9,10... Carboniferous... Edinburgh ...... 10 - squamiformis. PI. i. f. 7, 8 ... J Silurian ...... 597 Meristella tumida ...... Arctic regions Orthis ? PI. xxix. f. 4 ...... ...... 635 Pentameru8 CoppinFeri. PI. xxv, ] f. 2,3 ...... Silurian ...... Arctic regions t 594 595 Productus complectens (fig.) ...... 498 Carboniferous... Scotland ...... or Chonetes, sp. (fig.) ...... j 498 , (costatus or mesolobus ?) ...... Devonian ...... Arctic regions 635 costatus ...... ] 63I fimbriatus ...... 630 Carboniferous .., Arctic regions [ mesolobus ...... / 630 (punctatus ?) ...... J 630 POSSlLtl I~IOURgD AND DBS0RIB]~.D. N.moo, Speo,e, I Fo '''oo I IPage:

MOLLUSCA (continued).

( Braehiopoda, continued.)

Productus semiretieulatus ...... 629 1 Carboniferous ... - Weyprechti ? ...; ...... J" 631 Rhynchonella nucula ...... iSilurian 595 . pleurodon ...... Carboniferous ... 632 8pirifera tlldriehi. PI. xxix. f. 2... Devonian ...... 634 duplieicosta ...... Carboniferous ... 628 - (granulifera ?) ...... Devonian ...... 634 - (Grimesi ?). Pt. xx,v. f. 5 ...... 628 Arctic regions (lamellosa ?) ...... Carboniferous... 629 ovalis 629 (pennata ?) ...... Devonian ...... 633 Spidferina cristata ...... 1 629 Streptorhynchus erenistria ...... f Carboniferous ... 632 8trophodonta Feildeni. Pl. xxv. f. 4... 598 Strophomena euglypha ...... Silurian ...... 597 siluriana ..... "...... j 597

( Lamellibranehiata. ) dnthracoptera ? obesa. P1. i. f. 12-'

14 ...... , ...... ~ ...... 12 Anthracosia? nucleus. PI. ii. f. 20... 16 ,4vicula Hendersoni. PI. i. f. 11 ... 11 Myalina crassa, var. modioliformis .. 13 Carboniferous ... Edinburgh ... r m~blamellosa. P1. i. f. '15, and PI. ii. f. 16, 17 ...... 14 Nneulana Sharmani. PI. ii. f. 18... 15 Pandora? typica. PI. ii. f. 22, 23... 17 Schizodus Salteri. P1. ii. L 19 ...... 16

(Oasteropoda.)

Aceoculia haliotis 603 Silurian ...... Arctic regions ( Bellerophon, sp .... i:ii~iiiii:iiiii:ii:~ } 606 decussatus, var. undatus. Pl.ii. Edinburgh ...... 19 f.ao ...... j Carboniferous ... Cadulus gaultinus. PI. iii. f. 48 ... Gau|t ...... Folkestone ...... 6a De#talium aeuminatum. PI. iii. f. 34-39 ...... | 62 . alarum. PI. iii. f. 16-20 ...... | 60 - cylindrieum. PI. iii. f. 21-25. [ 61 Cretaceous ...... England ...... - . decussatum. PI. iii. f. 1-12... 58 .- - divisiense. Pl.iii. f. 15 ...... | 60 deffreysii. PI. iii. L 26-33 ... [ 61 == medium. PI. iii. f. 13, 14 ...J 59 E~lalis Meyeri. P1. iii. f. 40 ...... Cretaceous ...... Blackdown .... 62 Helieotoma Naresii. PI. xxvii, f. 3... Silurian ...... Arctic regions... 602 Littorina seoto-burdigalensis. PI. ii. 1 Carboniferous .. Edinburgh 18 f. 26, 27 ...... J" 1~08811~ I~IeUI~,D KND DESORIBED, xi

Name of Species. t Formation. [ Locality. Page.

MOLLUSCA (continued).

( Gasteropoda, continued.)

Maclurea Logani ...... 606 ... magna ...... | 605 Murehisonia latifasciata. PI. xxvii. Silurian ...... Arctic regions f f, 1 ...... , ...... ,...... ~ 1 600 , sp. P1. xxvii, f. 2 ...... J 601 striatula. P1. ii. f. 29 ...... Carboniferous... Edinburgh ...... 19 PI. xxvii.~ Platy~terns naticoides. Silurian ...... Arctic regions... 605 fo 4 ...... , ~176176176~176 ~176176176J Pleurotomaria monilifera. P1. ii. Carboniferous ... Edinburgh ...... 18 f. 28 ...... Rhaphistoma ~equale (?) ...... Silurian ...... Arctic regions... 601 8iphodentalium a~ine. PI. iii. f. 41- | 44 ...... Gault ...... Folkestone ... { 62 curvum. P1. iii. f. 45-47 ... 63

( Pteropoda. )

Conularia, sp ...... ICarbonifcrous ...I Edinburgh ...... [ 19

(Cep~Zopod..)

Cyrtoceras, sp ...... Silurian ...... I Arctic regions...[ 608 Nautilus cariniferus. PI. ii. f. 31,~ 32 ...... **~176176176 ..... L Carboniferous ... Edinburgh "'" If 1,1 20 sp ...... [ 20 Orthoceras, sp. P1. ii. f. 33, 34 ...J . 21 imbricatum ...... ] Silurian ...... [ Arctieregions ~[ 607 -- nummularium ...... 6O8

~rEI~TEBRATA. (Pisces.)

Daptinus intermedius. PI. xix .... ]lChalk ...... I Dover ~l 440 , sp ...... j I ...... 445

( Rcpti~ia. )

Iguanodon Mantelli (figs.) ...... ]Wealden ...... Isle of Wight ...l 744 Proeolophon cuneiceps. P1. xxxii.~ fl f. 7,8 ...... [ I South Africa ~[ 797 GrieFs,hi. P1. xxxii, f. 1-3... [ ,[Trias ...... 795 latieeps. PI. xxxii, f. 4-6 "'" J [CoraUian] ...... 801 Crocodilus, sp ...... Weymouth ...... U [ 398 Goniopholis crassidens. PI. xv .... iWealden ...... England ...... ] 377 xii le0SSI~S FIGURED AND DESCRIBED.

Name of Species. Formation. Locality. I Page.

VERTEBRATA (continued).

(A~,es.)

~lrgillornis longipennis. PI. vi ...... [Eocene ...... I Sheppey ...... I 124

( Mammalia. )

Cervus eusanus (fig.) ...... ] 406 eylindroeeros (figs.) ...... 414 etueriarum (fig.) ...... 410 Matheroni (fig.).. Mioceneliocene ifEurope ...... , 404 pardinensis (fig.) ...... ] 409 407 perrieri (figs.) ...... ( Plioeene ...... suttonensis (figs.) ...... [ 411 tetraceroa (figs.) ...... J 416 EXPLAN.~TION OF THE PLATES.

PLAT~ PAOK LOwER CARBONIFEROUS INVERTEBRATA, tO illustrate Mr. R. I. Etheridge, Jun.'s paper on the Invertebrate Fauna of the II. Lower Carboniferous rocks of the neighbourhood of Edin- I burgh ...... 1 J'BR[TISH CRETACEOUS D]~'~TALIID~E, to illustrate Mr. J. S. III. [ Gardner's paper on those fossils ...... 56

f Z~OLITES FORMED IN" ROMAN BI{ICKWORK, ~0 illustrate Prof. IV. [ DaubrSe's paper on that subject ...... 73

V. ( O~LI~E MAP OF BRITtS• COLUMBIA, to illustrate Dr. G. M. Dawson's paper on the Superficial Geology of that province 89

~BONES OF ~kRGILLORNISLONGIPENN[S AND OF RECENT BIRDS, tO VI. t illustrate Prof. Owen's paper ...... 124

VII. ~" SPHENOPTERIS AFFINISAND STAPHYI~OP'PERIS~ PEACilI[, tO illus- VIII. [. trate Mr. C. W. Peach's paper on those plants ...... 131

~f LIASS[C COaALS: tO illustrate Mr. R. F. Tomes's paper on the IX. t Corals of the LJas of England and South Wales ...... 179

t M'Ap OF TIlE ~HARNWOODDISTRICT, tO illustrate Messrs. Hill X. and Bonney's paper on the Precarboniferous rooks of Charnwood Forest ...... 199

KiT. MAPS,PLANS, AND SECTIONS, to illustrate ~Ir. C. Lapworth's Xrrr. paper on the Moffat Series ...... 240

SKETCH MAP OF THE UPPER PUNJ~,B, to illustrate Mr. A. B. XIV. Wyune's paper on the Geology of that country ...... 347

XV~ ( SKULLS OF GONIOPtlOLIS, tO illustrate Mr. Hulke's paper on two Crocodilia from the Wealden and Purbeck ...... 377

f C~ocODILIAN" JAW from the Corallian of Weymouth, to il- XVI. [ lustrate Mr. E. T. Newton's paper on that subject ...... 398

SECTIONS OF AUSTRALIANAURIFEROUS ROCKS, to illustrate Mr. XVII. ~ R. Daintree's paper on certain modes of occurrence of Gold XVIII. I. in Australia ...... 431 xiv R3tPLA~ATION OF PLATES.

PLATB PAOI i DAI~INU8 INTER~EDIUS, to illustrate Mr. E. T. Newton's XIX. paper on a new Fish from the Lower Chalk of Dover ...... 439

XX. [ Sscrloss OF CORSlSH " GREESSVOSES," to illustrate Mr. J. A. XXI. ~ Phillips's paper on the so-cMled "Greenstones" of Central XXII. [ and Eastern Cornwall ...... 471

~TTT. ~" MAP OF GIBRALTAR, to illustrate Messrs. Ramsay and Geikie's t paper on the Geology of Gibraltar ...... 505

SILETClt MAP OF GRINNELL LAND, ~.., to illustrate Messrs. XXIV. Feilden and De Rance's paper on the Geology of the Arctic coasts ...... 556

XXV. y~X-Xv~VL~-ARCTIC P~ozolc FossiLs, to illustrate Mr. R. Etheridge's x~)I" ii r paper on the P.~ontolov of the A~tio ooast~ ......

f PLaS aSD SECVION 0~' TIs ML~ES on the Great Flat Lode, to XXX. ~t illustrate Dr. C. Le Neve Foster's paper on that subject... 640

[ MAP a~v GE~Ee~LIZED SEe'finN, to illustrate Prof. Judc~'s paper ~l', ~ on the Secondary Rocks of Scotland; the Strata of the L Western Coast and Islands ...... 660

XXXII. ~ SKULLS OP PaOCOLOPHON,tO illustrate Prof. Seeley's paper on t new species of that genus ...... 797 I CHXRT of the Outer Hebrides and the Minch, to illustrate X~fXTII. Dr. J. Geildo's paper on the glacial phenomena of the t Long Island ...... 819

f PELANECaINVS CORALLINCS, to illustrate Mr. W. Keeping's 2~XXIV. ]t paper on that Echinoderm ...... 924