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GENERAL INDEX

TO

T H E Q U A R T E R L Y J O U R N A I ~

AND

PROCEEDINGS OF THE GEOLOGICAL SOCIETY.

[The fossils referred to are described; and those of which the names are printed in italics are also figured.]

Aberdeen (S. Africa), section north of, showing the junction of the Xaroo and Ecca beds, 261 ; section through, 270.

Acadian group of rocks, 805. Achumore, section through, 418. Aaidasl~is erinace~s, 723.

- - , zone of, 674, 683, 685, 686, 688, 689, 690, 692, 696, 698, 702.

Actinolite in greensand at base of Thanet Sand, 758.

Adamson, ]~Ir. S. A., on a recent discovery of Stirj~riaficoides at Clay- ton, Yorkshire, 375.

Africa, South, two new Lepidotoid Ganoids from early Mesozoic deposits of the Orange Free State, 138.

- , Geology of, 239. Agate pebbles, eroded, from the Sou-

dan, 368. Agglomerates near Llangefni, 487. Ailurus ~nglicus, a new Carnivore

from the Red Crag, 228. Ainimik6 series, 801. Albert Asylum well, Upper Bagshot

in, 608, 609. Aldershot, Upper Bagshots in Thorn

Hill, 612. /Lilt Ealag, section from Elphin to,

426. Allt Leth Slighe, section in, 71. Alluvial gold, general absence of, in

Mysore, 650. America, the ]~ozoic and Pal~zoic

rocks of the Atlantie coast of Oanada, compared with thole of the interior of, 797.

Amlwch, 516. A•imjx a/on/ens/s, 794.

- - , zone of, 673, 674, 689, 685, 687, 688, 690, 695, 698.

Analyses of Cretaceous deposits in Lincolnshire and Yorkshire, 358; of South-African Coals, 251; of Ardtun tachylyte, 303; of garne~ from Mysore, 641; of "Kunker' from Mysore, 642 ; ofepidotes, 742; of limestone under salt in Durham, 763; of rock-salt from Middles- borough, 782 ; of rock-salt from the Saltholme borings, 782.

Anglesey, physical history of the Monian rocks of, 543.

�9 , Pre-Cambrian rocks of, 463. Anniversary Address of the President,

Prec. 4I-g4. See also Judd, Prof. J .W.

Annual Report for 1887, Prec. 8. Appletreeworth Beck, section across

" Cliff," 695 ; section of Farm, 696. Farm, ashes at, 697 ; felsite dyke

at, 697. Areh~eau rocks of the North-wes~

Highlands, 387. Arctic lands, Mesozoic rocks on, 815;

Pal~ozoic climates of, 816. Ardtun, tachylyte from, 300. ~cot , section of Bagshot Beds at

Hagthorn Hill, near, 166 ; in South~ Western Railway cutting near, 166.

3 x 2

840 GENERAL M E X .

Ascot Hills, Bagshot Beds of the, 170. Ashes, at Appletreeworth Farm, 697. Ash~ll, section across quarry, 693. Ashgill shales, 660, 665, 680, 693,

694, 70O. Assynt, succession of Cambrian rocks

in, 401. At~ypa flex~a, 725. - - ~ , zone of, 661, 665, 686,

687, 694, 7OO. Attwood, Mr. G., on some of the Auri-

ferous tracts of Mysore province, Southern India, 636.

Auriferous tracts of Mysore province, Southern India, Mr. G. Attwood on some of the, 636.

Austwick Beck, Stockdale shales on, 706.

hOt Beds of the London Basin, �9 A. Irving on the stratigraphy

of the, 164. sands, Lower, 105.

Ball, Mr. Valentine, on some eroded Agate pebbles from the Soudan, 368.

--, on the probable mode of transport of the fragments of granite and other rocks which are found imbedded in the Carboniferous Limestone of the neighbottrhood of Dublin, 371.

Bangor, Pre-Cambrian rocks near, 533 ; Trilobites in the Upper Green (Cambrian) Slates of the Penrhyn Quarries, Bethesda, near, 74.

- - and Caernarvon, map of the district between, 272.

- - and Caernarvon area, Cam- brian and associated rocks in the, 273.

Barkbam Hill, section in pits on, 176. Barlow, Mr. W., on the horizontal

movement of rocks, and the relation of these movements to the formation of dykes and faults, and to denudation and thickening of strata, 783.

Barren :Band of the Skelgill beds, 672, 682, 684.

Barton, fauna of the, 618. ~ , Lower, or Highcliff Beds, 587 ;

fauna of, 588. Clay, or Middle Barton, 588;

fauna of, 589. Cliff, section of the, 594.

- - - - series, 579, 582; of the London area, 606.

Barton-on-Humber, succession of Cre- taceous beds at, 330.

Basalt-dykes in Archman gneiss of North-west Highlands, 390.

Basement Bed of the London Clay, 102 ; Mollusea of the, 103.

Bavaria, Graptolites of Stockdale Shales from, 712.

Bealloch, section from the, across Coinne-mheall to Corrie Mhadaidh, 421.

Bearwood Hills, Bagshot beds of, 176.

Beaufort West, intrusive trap sheet at, 254 ; section through, 270.

Becton-Bunny Beds, 591 ; section of, 592.

Bedford, Mr. R. Lydekker on the skeleton of a Sauropterygian from the Oxford Clay near, •roe. 89.

Beinn Lice, sections through, 415. Suardal, fossils from the Lime-

stone of, 69. Belemnitell~ plena, zone of, in Lin-

colnshire, 329; in Yorkshire, 346. Belemnite-marls in Lincolnshire and

Yorkshire, 363. -- , minute structure of the, 357.

:Belgium, Prof. Prestwich on the correlation of the :Eocene Strat~ in England, the north of France, and, 88.

•elorwstomus ~nc~us, 145. Ben Aird da Loch, section through,

417. Ben Aride, section across, to the

Moine thrust-plane, 415. Ben Dreavie, section through, 415. Ben Fhuarain, section through, 424. :Ben More, general structure of, 421 ;

section from the Oykel valley, across, 423.

- - thrust, 412, 418, 419, 422, 423, 427, 428, 430, 431, 432, 433, 435.

- - - - thrust-plane, section from Quinaig to the, 418.

Ben Uidhe, section through, 418. ]~hesda, near Bangor, Dr. H. Wood-

ward on Trilobites in the Upper Green (Cambrian) Slates of the Penrhyn Quarries at, 74.

Birkhill Shales, comparison of, with Skelgill Beds, 706, 709.

Black Rock of Clifton, insoluble residues from the, 190.

Blake, Prof. J. F., on the Cambrian and associated rocks in North-west Cacrnarvonshire, 271.

, on the Monian system of rocks, 463.

Blocks, ejected, of Monte Somma, Dr. H. J. Johnston-Lavis, on the, Prec. 9 I .

Bodafon Mountain, rocks of, 499.

6ENERAL INDEX. 841

Bohemia, equivalents of Stockdale Shales in, 712, 713.

Bokkeveldt Beds, 214. Bollerup, Graptolites of, 711. Bonney, Prof. T. G., on some results

of pressure, and of the Intrusion of Granite in Stratified Paheozoic Rocks near Morlaix in Brittany, 11 .

~ , on the Obermittweida Conglo- merate, its composition and alteration, 25.

-, on a part of the Huronian series in the neighbourhood of Sudbury (Canada), 32.

, on the "intrusive syenite" of Glen Logan, 384.

, Note on specimens from Mysore, collected by G. Attwood, Esq., 651.

Berth Saint, quartzite of, 478; view in, 479.

Wen, view of, west side, 521. Bothriospondylus, 59. Boulder-clay, Low-level Marine, of

the Dee, Mersey, and :Ribble, denudation of the, 291.

Bracheux, Sables de, 94 ; Mollusea of the, 96.

Bracklesham Beds at Highcliff, 585. Sands, 107.

Brady, Mr. H. B., on the so-called "Soapstone" of Fiji, 1.

Braebag, section through, 424. Braidy Beck, 691. Bray Head, Pre-Cambrian rocks of,

535. Breecias of the neighbourhood of Sud-

bury, Canada, 38. Breccia-series in the Red rocks of

South Devon, 157. Bridlington Drift, fossils of the, 120. Britain, comparison of older Palmozoic

rocks of, with those of Nova Scotia and New Brunswick, 813.

, Laurentian in, 800. British Isles, map showing the glacia-

tion of the northern parts of the, 828.

Brittany, Prof. T. G. Bonney on some results of pressure, and of the intrusion of Granite in stratified Paheozoic rocks near ]~orlaix, 11.

., Upper Laurentian in, 800. Browgi]l, section at the "Rake," 675;

sections in, 679. �9 Beds, comparison of, with Gala

Beds, 707, 709. ~ of Browgill and Stockdale,

674. Brown, Mr. Barrington, discovery of

rubies in matrix in Burmah, Prec. 9x.

Bryansford, tachylyte from near, 305.

Bryn Efafl, plan of quarry at, 283; section in road near, 284; section through, 287.

Bryntwrog, breceiated granite of, 495. Budleigh Salterton, Red rocks at,

153 ; section at, 155. - - , Vertebrate remains in the

Triassic strata between Sidmouth and, 318.

Buffels-river valley, Dwyka Conglo- merate in the, 243; section in the, 259.

Bull-Brook, Bagshot beds of, 165. Burmah~ rubies in the matrix from,

Prov. 9 x.

Cadell, Mr. H. M., see Geological Survey.

Cae Gwyn Cave, Prof. T. ]K'K. , Hughes on the, 112.

, N. Wales, Dr. H. Hicks on the, 561; Mr. C. E. De Rance on the, 576.

- - , fossils of Drift at, 120; views of portions of the, 119, 124, 125, 126 ; sections in the, 127, 128 ; plans of the, 135, 573 ; section across shaft, showing the continua- tion of the beds over the entrance, 563 ; flint-flake found under Drifts, outside the covered entrance, 564 ; section at north-east end of exeava tion, October 1887, 570 ; section through, 574.

Caerfai Beds, 803, 804. Caernarvon and Bangor, Map of the

district between, 272. Area, Cambrian and

associated rocks in the, 273. Caernarvonshire, Arenigs of, 275 ; ]~r.

A. Harker on the eruptive rocks in the neighbourhood of Sarn, 442; Pre-Cambrian rocks in, 533 ; Prof. J. F. Blake on the Cambrian and associated rocks in north-west, 271.

Caistor, succession of Cretaceous beds at, 329.

Calcaire de ~Ions, 90. Calcisph~er~e, Mr. E. Wethered on the

occurrence of, in the Carboniferous Limestone of Gloucest~rshire, Prey. 9I.

California Brick-yard, clay-pit in, 172.

Callaway, Dr. C, on the geology of the North-west Highlands, 384.

Camawg, Pre-Cambrian rocks at, 471.

842 e]gNERAL IN])]Dr.,

(3ambrian, relation of, to the u stone of Strath, Skye, 70.

and associated rocks in North- west Caernarvonshire, Prof. J. 1~. Blake on the, 271.

of Wales, fossils of the, 74. �9 rocks, in the north-west High-

lands, 400; in the Parph district, 401 ; in Assynt, 401 ; in the Loch- Broom district, 402 ; formation of outliers of, by folding and denudation, 402, 403.

..... strata, metamorphism of igneous rocks intrusive in, 434; of the North-west Highlands, metamorphism of, 431; on Coinne- mheall, alterations of, 433. ..... system of Canada, Western Europe, and the interior of America, 804. .... Upper Green Slates, discovery of Trilobites in the, of the Penrhyn Quarries, Bethesda, near Bangor, 74.

Camdeboo Mountains, section through, 270.

Canada, Eozoic and Palzoozoic rocks of the Atlantic coast of, in comparison with those of Western Europe and of the interior of America, Sir J. W. Dawson on the, 797.

, Prof. Bonncy on a part of the Huronian Series in the neighbourhood of Sudbury, 32.

Canisp, section from to Sgonnan More, 424.

Cape Breton, Laurentian in, 799. Cape Colony, Prof. A. H. Green on

t h e Geology and Physical Oeo- gxaphy of the, 239.

, section showing the general geulogical structure of the, from the Zwarteberg to the Stormberg Moun- teins, 256, 270.

Cape Town, generalized section from, to the Transvaal, 256, 270.

Carboniferous Limestone near Dub- lin, probable mode of transport of fragments of granite and other rocks found imbedded in the, 371.

~ of Gloucestershire, occurrence of Calcisphmrm in the, Prec. 91 .

- Series, insoluble residues obtained from the, at Clifton, 186.

system, of Canada, Western Europe, and the interior of Ame- rica, 814.

times, Mr. ft. Spencer on evidence of ice-action in, Prec. 93.

Oareg (3Fwladys, volcanic group of, 509; view of rock at, 510; section on west side of, 511 ; section looko ing north, 512.

Carnivore, new, from the Red Crag, 228.

Carter, Mr. t[. J., on some Vertebrate Rem,Lins in the Triassic strata of the south coast of Devonshire, between Budleigh Salterton and Sid- mouth, 318.

Cave, Cae Gwyn, Prof. T. M'K. Hughes on the, 112 ; Dr. H. Hicks on the, 561.

Cave Sandstone of the Stormberg series, 253.

Cefn-amlwch, section in quarry at, 446.

Cefn-eth-groen, junction of granite and pelite at, 494 ; section at, 494.

Cemmaes, disturbed volcanic series near, 518.

Central District of Anglesey, 485, 501. Cerrig Ceinwen, section in quarry

near, 488. Cetiosauria, 86. Cetiosaurus, 58. r brevis, 56. Chalcedony in greensand at base of

Thanet Sand, 758. Chalk, condition of the, on the brow

of the Yorkshire Wolds, 332. , ~ . t i n a Cranei and the man-

dible of Belonostomus cinetus, from the, of Sussex, 144.

and Tertiaries, unconformity between, 759.

Chalk-escarpment, section of, at Dew- lish, Dorset, 819.

Chalk-Marl, in Lincolnshire, 324; fossils from the, in Norfolk, Suffolk, and Lincolnshire, 349 ; in York- shire, 351; in Lincolnshire and Yorkshire, 361; minute structure of the, in Lincolnshire and York- shire, 355.

Chama-beds, 590; fossils of the, at Whitecliff Bay, 6O5.

Champernowne Memorial, Prec. 86. Charnwood Forest, Huronian rocks

in, 802. Cl~yb'um b i m ~ u , , var. acam-

t k,/,z, 722. moro/d~, 722.

Chemical composition of the Chalk in Lincolnshire and Yorkshire, 357.

Chobham, Bracklesham beds of, 609. Ridges, 609; Bagshot beds of,

164. Church Hill, Finchampstead, Bagshot

beds of, 173.

G.C~mmAT. ~q~lm~r. 843

Clayton, Yorkshire, discovery~ of St/g- mar/a f~o/d~ at, 375.

Clegyr, section through, 287. Cleithrolepis F_,xto~i, 141. Clidgas Rocks, greenstone from, 315. Clifton, insoluble residues obtained

from the Carboniferous Limestone Series at, 186.

Clough, Mr. C. T., see Geological Survey.

Cnoc an Droighinn, section from Loch Assyat to, 420.

Cnoc an Fhuarain Bhain, section from Glendhu to, across the Stack of Glencoul, 417.

Coal-measures of Fife, Mr. J. W. Kirkby on the occurrence of marine fossils in the, 747; vertical section of the, 748.

- - of Nova Scotia, 815. Coals, South-African, 249 ; analyses

of, 251. Coinne-mheall,alterations of Cambrian

strata on, 433; sections across, 421.

Cole, Mr. G. A. J., on some additional occurrences of tachylyte, 300.

Colesberg, trap at, 254. Collins, Mr. J. H., on the Sudbury

Copper-deposits, 834. Colonies, Secretary of State for the,

letter relating to discoveries of Gold in the Transvaal, Prey. 3.

Coloured bands in the Cretaceous deposits in Lincolnshire and York- shire, 353.

Colwyn Drifts, fossils of the 120. Conglomerate, Obcrmittweida, Prof.

Bonney on the composition and alteration of the, 25 ; Prof. Hughes on the position of the, 20.

of Twt-Hi~ age of the, 275. and Porphyry, plan of junction

of, in Twt-Kill Field-quarry, Caernarvon, 273.

Coniston, 688. Limestone, 675, 696.

Conocoryphe viola, 77. Contact metamorphism in Cambrian

and Silurian rocks of the North- west Highlands, 410.

Copper Cliff, Sudbury, section of ore- deposit at, 835.

Corals of the Stockdale series, 720. Corniferous Limestone, 813. Corrie Mhadaidh, section from one of

the sources of the Traligill to, across Coinne-mheall, 421; section from the Bealloch to, 421.

Crag, Red, a new Carnivore, ~4i/~rus anglicus, from the, 228.

Craig Cocyn, contact of granite and hornblende-schist at, 494.

Craig Wen, 521. Craig yr-allor, dioritic rocks near,

498 ; granite near, 495. Cretaceous rocks, map of the outcrop

of, in Lincolnshire and Yorkshire, 3 2 1 .

series, Upper, Mr. W. Hill on the lower beds of the, in York- shire and Lincolnshire, 320.

Cromalt, section through, 426. Hills, section from the Knockau

Cliff to the, 427. Crossopodia-group, 709. Cumnoria, 47. Cunningham, R. J. H., on the geo-

logy of Sutherland, 380. Currents, transporting action of, 733.

rtograTtus Gray~, band of, 705, 10.

Dalton-in-Furness, Stockdale Shales near, 697.

Davison, Mr. C., on the movement of Seree-material, 232, 825.

Dawkins, Prof. W. Boyd, on Ailurus anfflic~s, a new Carnivore from the Red Crag, 228.

Dawson, Sir J. W., on the Eozoic and Palmozoic rocks of the Atlantic coast of Canada, in comparison with those of Western Europe and of the interior of America, 797.

De Beer's mine, Kimberley, trap at, 254.

Dee, ]Kersey, and Ribble, denudation of the low-level Marine Boulder- clay of the, 291.

De Ranee, Mr. C. E., on the Cae Gwyn Cave, 576.

Denudation of the Pre-Cambrian Land-surface in the North-west Highlands, 400.

, relation of horizontal movements of rocks to, 783.

of old land-surface before deposition of Old Red Sandstone, 438.

Devon Coast-section, Rev. A. I r v i n g on the Red-rock series of the, 149.

Devonian or Erian of Canada, Wes- tern Europe, and the interior of America, 813.

Devonshire, Mr. H. J. Carter on Vertebrate Remains in the Triassic strata of the south coast of, 318.

Dewlish, Dorset, Rev. O. Fisher on the occurrence of Eleph~ meridio~alis at, 818.

Dharwar Rock, 649.

844

"Dhone" or shfice-box, for gold- washing, 648.

Diabase of the Sam district, 448. Hornblende-, of the Sam

district, 450. Dimetian of Laurentian age, 800. JDimorThograTtus-confertus zone, 662,

665, 680, 683, 686, 687, 688, 693, 694, 698, 700, 707, 715.

JDimorphograptus eonfertus, zone of, in Skelgill beds, represented by the zone of DiplograTtus vesiculosv.s in BirkhiU shales, 707.

Dinas Dinorwie, section from, to Llyn Padarn, 287.

Dinas Llwyd, disturbed m a s ~ near, 489; section on west side of, 489.

Dinas Mawr, section through, 287. Dinosauria, Prof. H. G. Seeley on the

classification of the, 85. Dinosaurs, Mr. R. Lydekker on some,

46. Diorite, formation of "eyes" of, in

Hornblende-schist, 392. , metamorphosis of, into horn-

blende-schist, 392. of the Sam district, 447.

Diorites of central Anglesey, 497. 1)iTlograptus acuminatus, zone of, in

BrowgiU, 680 ; at base of Birkhill shales, comparison of, with same zone in Skelgill beds, 707.

ve, i~dosus, zone of, in Birk- hill shales, represented by the zone of DimorphograTtus confertus, in Skelgill beds, 707.

Directions of Ice-flow in the north of Ireland, Mr. J. R. Kilroe on the, 827.

Dolerite-dyke, formation of "eyes" of diorite in, 392.

Dolerite-dykes of the Sam district, 460.

- - in Archman gneiss of North- west Highlands, 389.

Donations to the Library and Mu- seum, Prec. 97.

Donegal, Dr. F. H. Hatch on the spheroid-bearing granite of Mul- laghderg, 548.

Dordrecht, S. Africa, intrusive trap- sheet at, 254.

Dorset, Rev. O. Fisher on the occurrence of EleThas meridionalis at Dewlish, 818.

Down, tachylyte from, 305. Downton Sandstones, 814. Drifts of North Wales, fossils of the,

120. Dublin, Mr. V. Ball on the probable

mode of transport of the fragments

of granite and other rocks found imbedded in the Carboniferous Limestone of the neighbourhood of, 371.

Durham Salt-distrlct, Mr. E. Wilson on the, 761 ; map of the, 762 ; area of the, 773.

Durness Limestone, American type of fossils in the, 806.

and Eriboll, section of Si- lurian at, 404.

Dusky Sound, New Zealand, Capt. F. W. Hutton on a hornblende- biotite rock from, 745.

Dwyka conglomerate, 241; at Ora- hamstown, 242; on the Witte- bergen, 243; in the Buffels River valley, 243.

Dyke, basic, in Man-of-War Rocks,311. , felsite, at Appletrecworth Farm,

697. in Quadrant Island, 313.

Dykes, dolerite-, of the Sam district, 460.

, formation of, relation of horizontal movements of rocks to the, 783.

, intrusive, in the Arch~ean rocks of the North-west Highlands, effects of later Pre-Cambrian movements upon, 391.

, porphyritic and granitic, in the Seringaptam area, 647, 648, 649.

Eastern District of Anglesey, 503, 513. Easthampstead Plain, Bagshot beds

on north flank of, 164. East Hesterton, section of ]~,ed Chalk

at, 337. Ecca Beds, near Grahamstown, 244. Eclogite of the Melkote area, 639, 65L F_,Arenbergina bivornis, 5. Elephas meridionalis, Rev. O. Fisher

on the occurrence of, at Dewlish, Dorset~ 818.

Elliot lode, 646. ElliTsoidina ellipsoides, vat. oblonga, 5. Elphin, section from, to Allt Ealag,

426. Encrinurus punctatus, zone of, 668,

672, 690. England, marine fossils from the

coal-measures of, 751. ..... , Prof. Prestwich on the cor-

relation of the Eocene strata in :Belgium, the north of France, and, 88.

, Silurians of, 812. Enoch Rock, schist and gneiss from,

317.

6]~q-ERAI, INDEX. 845

Eocene series, table of classification of the, 89, 108.

strata, Prof. Prestwich on the correlation of the, in England, Bel-

g ium, and the north of France, 8.

- - , Upper, Messrs. J. S. Gardner, H. Keeping, and H. W. Monckton on the, 578.

Eozoie and Palaeozoic rocks of the Atlantic coast of Canada, in comparison with those of Western Europe and of the interior of America, Sir J. W. Dawson on the, 797.

Epidosites, Mr. W. F. Rutley on the possible origin of some, 740.

Epidote infusions in Pre-Cambrian rocks of Western Anglesey, 475.

in greensand at base of Thanet Sand, 758.

Epidotes, analyses of, 742. Erian or Devonian of Canada, Western

Europe, and the interior of America, 813.

Eriboll and Durness, section of Silu- rian strata at, 404.

and Ullapoo], physical relations of the strata between, 411.

, section of Silurian strata from, to UUapool, 406.

Eruptive rocks in the neighbourhood of Sarn, Oaernarvonshire, 442.

Escarpment of Chalk at Dewlish, Dorset, 819.

Eston-on-Tees, South Bank, boring at, section of the, 778, 782.

Euiguanodonts, 51. Europe, Western, Cambrians of, 805. ~ , ~ , the Eozoic and Pahe-

ozoie rocks of the Atlantic coasts of Canada, compared with those of, 797.

Tar End, Yewdale Beck, section at, 688.

Farley Hill, Bagshot beds of, 177. Farnborough, Upper Bagshots at, 612. Faults, formation of, relation of hori-

zontal movements of rocks to the, 783.

Fauna of the Lower Beds of the Upper Cretaceous in Lincolnshire and Yorkshire, 352.

of the Upper Bagshot Sand, 618.

Felsite-dyke at Appletrecworth Farm, 697.

Felsites, perlitic, Mr. F. Rutley on some, from the flanks of the Here- fordshire Beacon, 740.

Felspar in greensand at base of Thanet Sand, 757.

, section of, from granite of Mullaghderg, 550.

crystals, development of quartz and flakes of mica in, 36.

Felstones, porphyritic, from Mysore, characters of, 652.

~'T:mnon Beuno cave, section in quarry opposite, 132.

gorge, caves of the, 113, 561. Fifeshire, Mr. J. W. Kirkby on the

occurrence of marine fossils in the Coal-measures of, 747.

Fiji, Mr. B:. B. Brady on the so-called "soapstone" of, 1.

Finchampstead Ridges, Bagshot beds of, 171.

Fish River, section across, 270. Fisher, Rev. O., on the occurrence of

EleThas meridionalis at Dewlish, Dorset, 818.

Fissures, production of, by horizontal movements of rocks, 783.

Flint in grcensand at base of Thanet Sand, 756, 789.

Flint-flake found under drifts outside the covered entrance to Cae Gwyn Cave, 564.

Flowing Streams, Mr. R. D. Oldham on the law that governs the action of, 733.

Foliation, double, produced by mechanical movements in Arch~ean gneiss, 397; diagram showing, 398.

Foord, Mr. A. H., award of one moiety of the Lyell Geological Fund to, Prec. 39.

Foraminifera, Post-tertiary, of Suva, Fiji, 8.

Fossils, marine, Mr. J. W. Kirkby on the occurrence of, in the Coal- measures of Fife, 747 ; in the Coal- measures of Scotland and ~ngland, 750, 751.

- - f r o m the so-called Soapstone of Fiji, 4; Dinosaurian, from the Wealden, &c., 49, 79; from the Limestone of Beinn Suardal, Strath, 69 ; of the Cambrians, 74 ; of the Caleaire de Mons, 90; of the Tha- net Sands, Pegwell Bay, 93; of the sands of Bracheux, 96; of the Woolwich and Reading Series, 100; of the Basement-bed of the London Clay, or Oldhaven Beds, 103; of the Bridlington Drift, 120; from the Orange Free State, 138; from the Chalk of Sussex, 144 ; from the Red Chalk or Hunstanton Lime- stone, 347 ; of the Lower Chalk of

846 @ENmaAT. I N D , .

Lincolnshire, 348; from the Chalk Marl and Totternhoe Stone in Norfolk, Suffolk, and Lincolnshire, 349; from the Lower Chalk of Yorkshire, 351; from the Upper Bagshot Sand, 616; of the Barton beds, 623; of the Stockdale Shales, 7 ~ .

Fox, Mr. Howard, on the gneissie rocks off the Lizard, 309.

Fox Hills, sections in Upper Bag~ot in the, 610, 611.

Fragments of granite and other rocks found imbedded in the Carboni- ferous Limestone near Dublin, probable mode of transport of~ 371.

France, Prof. Prestwich on the eo~- relation of the Eocene strata in England, Belgium, and the north of, 88.

Frilled Schists, 431,435.

Oabbro of the Sam district, 447. Gala Beds, comparison of, with Brow-

gill Beds, 707. Ganoids, Lepidotoid, from the early

Mesozoic deposits of the Orange Free State, 138.

Oanton Hall, section of Lower Chalk near, 342.

Garbourn Pass, 685. Oardiner0 Miss M. I., on the Green-

sand bed at the base of the Thanet Sand, 755.

Gardner, Mr. J. S., Mr. H. Keeping, and Mr. H. W. Monckton on the Upper Eocene, comprising the Barton and Upper Bagshot formations, 578.

Garnet in greensand at base of Thanet Sand, 757, 758.

Garnets, crushed, in mica-schists of the Melkote area, 640, 641 ; analysis of, 641.

- , flattened, from Mysore, 651. Garrowby Hall, section of Red Chalk

near, 335. Garth Ferry, weathered surface of

rock north of, 507. Gault of Norfolk, analysis of, 358. Geikie, Dr. A., on the age of the

altered limestone of Strath, Skye, 62.

, on recent researches in Cae (~wyn Cave, 571.

Geological Survey, report on the recent work of the, in the North- west Highlands of Scotland, based on the field-notes and maps of Niessrs. B. N. Peach, J. Borne,

W. Ounn, C. T. Clough, L. HinT- man, and H. M. Oadell, 378.

Glaciation of the northern part of the British Isles, map showing the, 828; North Irish system of, map showing the, 831.

Gluven, diagram-section in west face of, illustrating thrusts and reversed faults, 413 ; section through, 418.

Glauconite in greensand at base of Thane~ Sand, 755; in the greensand bed at Sudbury, 758.

Glenbeg, section through head of, 41&

Glencoul, section across the Stack of, 417.

thrust, 412, 413, 417, 418, 420, 421, 429, 431, 434, 435.

Glendhu, section from, across the Stack of Glencoul, to Cnoc an Fhuarain Bhain, 417.

Gl~fp~,str~ea, Dr. G. J. Hinds on the genus, 200.

Gneiss, effects of later Pre-Cambrian movements _ upon the Arch~ean, in the 1%rth-west Highlands, 395.

, original types of, in the North- west Highlands, 387; unfoliated igneous rocks in, 388; evidence of mechanical movements in the formation of the, 388; igneous rocks injected into the, 389.

~ , granitoid, from Mysore, charac- tors of, 652.

Gneisses of Central Anglesey, 497 ; of Eastern Anglesey, 505 ; of the Mel- kote area, 637, 638, 642; of the Seringapatam area, 644.

Gneissic diorite of the Sam district, 447.

granite of the Sam district, 444. rocks off the Lizard, Mr. H. Fox

and Mr. J. J. H. Tea]l, on the, 309, 314.

Oneissoid rock from Mysore, characters of, 651.

Oogarth, Pre-Cambrian rocks of, 479. E$old, alluvial, general absence of in

Mysore, 650. , discoveries of, in the Transvaal,

Proc. 3 ; mode of occurrence of, in the Melkote area, 643; occurrence of, in the Seringapatam area, 646, 647.

Gold-mining, native, in the Melkoto area, 643, 649 ; in the Scringapa- tam area, 646.

Gold-washing dish, sketches of a, 648. Grahamstown, Dwyka conglomerate

at, 242; Ecea Beds near, 244. , sections through, 263, 270.

O E N ~ A r,

Granite, Dr. F. H. Hatch on the spheroid-bearing, of Mullaghderg, Co. Donegal, 548.

- , normal of ]~ullaghderg, 548 ; microscopic characters of, 549.

- - - - , fragments of, found imbedded in the Carboniferous Limestone near Dublin, probable mode of transport of, 371.

k__, intrusive, in the west of the central district of Anglesey, 490.

- - - - , junction of, with gneiss, diorite, &c., near Gaulchmai, Plas Llanfihan- gel, Tafarn-y-botel, &c., 492, 494.

- - - - near Ynys-y-tyddlyn, 473; near Llyn Trefwll, 482.

of Anglesey, nature of the, 495. - of the Sam district, 444. . . . . . paucity of, in Southern India,

650. , Prof. Bonney on some results of

the intrusion of, in stratified Palmo- zoie rocks near Morlaix, Brittany, 11.

- - - - , veins and belts of, conversion of, into granitoid gneiss, 393.

Granites, dykes of, in Arcl~ean gneiss in North-west Highlands, 391.

Granitic dyke in the Seringapatam area, 649.

Granophyre bosses of Strath, Skye, 72.

Graptolites of the Quebec Group, 808.

Grasby, succession of Cretaceous beds at, 327.

Greatham, boring at, section in, 782. Green, Prof. A. H., on the Geology

and Physical Geography of the Cape Colony, 239.

Green-earth series of the Bagshot, 183. Greensand bed at the base of the

Thanet Sand, Miss M. I. Gardiner on the, 755.

Greet's Hill quarry, section of Red Chalk at, 335.

"Grey Bed" in Lincolnshire, 325. "Grey Beds" in Lincolnshire and

Yorkshire, 363. "Grey Bed," minute structure of the,

356. Grey Chalk, fossils from the, in York-

shire, 351 ; minute structure of the, 357 ; of Lincolnshire, 328 ; in Lin- colnshire and Yorkshire, 363.

Grits of the neighbourhood of Sud- bury, Canada, 40.

Gualchmai, granite at, 491. Gully Hill, Upper Bagshot section in,

612. Gunn, Mr. W., see Geological Survey.

~ x . 847

Hagley Heath, 613. Hagthorn Hill, sectionof Bagshot beds

at, 166. "Halagay" or Mysore gold-washing

dish, sketches of, 648. H~lleflintas of central hnglesey, 496. Hampshire Cliffs, Upper Bagshot

Sands in the, 580. Hangklip, trap at, 254. ttaploThragmium rugosum, 4. Harker, Mr. ~., on the eruptive roeka

in the neighbourhood of Sam, Oaernarvonshire, 442.

ttarpes angustus, 724. judex, 723.

Hart{brd Bridge Flats, Upper Bag- shot on, 612.

Hassan district of Mysore province, plan of part of the, 637.

Hatch, Dr. F. H., on the spheroid- bearing Granite of ]~Kullaghderg, Co. Donegal, 548.

Heath Pool, section of Middle Bagshot strata at 171.

Heersian, 91. Hen-bias, granite of, 495. Herefordshire Beacon, Mr. 1~. Rutley

on some perlitie felsites from the flanks of the, 740.

Hicks, Dr. H., on the geology of Loch Maree, 383.

- - , on the Cae Gwyn Cave, N. Wales, 561.

Highclere, Bagshot beds of, 178. Station, Upper Bagshot outlier

near, 614. Highcliff Beds, Lower Barton, 587;

fauna of, 588. Highlands, North-west, of Scotland,

report on the recent work of the Geological Survey in the, 378.

Hill, Mr. W., on the lowerbeds of the Upper Cretaceous series in Lincoln- shire and Yorkshire, 320.

Hinde, Dr. G. J., on the history and characters of the genus SeTta~trea, D'Orbigny, and the identity of its type species with that of Glgph- astr~a, Duncan, 200.

Hinton Admiral, section of Barton Beds near, 597.

Hinxman,Mr.L., seeGeological Survey. ttolaster, Mr. A. J. Jakes-Browne on

a new species of, 364. Holyhead Island, Pre.Cambrian rocks

of, 467. Straits, Precambrian rocks of area

north of, 468. Home Secretary, letter from the, ac-

knowledging the Society's address to the Queen, ])roe. L

848

Hope Town, section through, 270. Hordwell, section at, 595; section

through the Lower Headon at, 596. Horizontal movements of rocks, Mr.

W. Barlow on the, 783. Hornblende, twinned crystal of, 551. Hornblende-bloke rock from Dusky

Sound, New Zealand, Capt. F . W . Hutton on a, 745.

Hornblende~liabase of the Sam dis- triet, 450.

Horblende-picrite of the Sam district, 454.

Hornblende-schist, formation of eyes of diorite in, 392; from Mysore, characters of, 651 ; in the Melkote area, 639; origin of, in Eastern Anglesey, 503.

Home, Mr. John, award of the Wol- laston Donation Fund to, Prov. 33.

Horne, Mr. J., see Geological Survey. Howth Hill, Pre-Cambrian rock of,

535. Hudieston, Mr. W. H., on the "Glen

Logan" rock, 384. Hughes, Prof. T. McK., on the posi-

tion of the Obermittweida Con- glomerate, 20.

, on the Cae Gwyn Cave, 112. Hunstanton Limestone, in Lincoln-

shire, 324; in Yorkshire, 333; of Lincolnshire and Yorkshire, 359; fossils from the, in Lincolnshire and Yorkshire, 347; minute structure of the, 355; analyses of, 358.

Huntingbridge, Upper Bagshot beds at, 606.

Huronian, formation of, 802. Series, Prof. Bonney on a part

of, in the neighbourhood of Sud- bury (Canada), 32.

System of Canada, Western Europe, and the interior of America, 801 ; west of the great lakes, 801.

Hutton, Capt. F.W., on a Hornblende- biotite rock from Dusky Sound, New Zealand, 745.

Hyl~osaurus, 53.

Ice-action, Mr. J. Spencer, on evidence of, in Carboniferous times, Prec. 93.

Ice-flow, directions of the, in the north of Ireland, Mr. J. R. Kilroe on the, 827.

Igneous rocks in Cambrian and Silu- rian formations of the North-west Highlands, 408; their intrusive character, 408 ; their horizons, 408 ; their distribution, 409; characters of, 409 ; metamorphism caused by,

410; injected into original Areh~an gneiss after first foliation, 389; unfoliated in original Jrchsean gneiss, 388; intrusive in Cambrian and Silurian strata, metamorphism of, 434 .

Iguanodon Dawsoni, 47. - - Prestwichi, 47. Iguanodont, Wealden, Mr. R. Lydek-

ker On a new, 46. Inehnadamff, limestone plateau of,

419. India, Secretary of State for, letter

accompanying rubies in the matrix from Burmah, Prec. 9 i.

, Southern, Mr. G. Attwood on some of the auriferous tracts of Mysore province, 636.

Intrusion of Granite in stratified Paheozoie rocks near Morlaix, Brittany, Prof. Bonney on some results of the, 11.

of igneous rocks in Cambrian and Silurian formations of the North-west Highlands, 408, 410.

Ireland, Directions of Ice-flow in t h e north of, Mr. J. R. Kilroe on the, 827.

, map of the north of, showing theNorth-Irish system of glaciation, 831.

Irving, Rev. l . , on the Red-Rock series of the Devon Coast-section, 149.

~ , on the Stratigraphy of the Bag- shot beds of the "London Basin, 164.

Ischyrosaurus, 57.

Johnston-Lavis, Dr. H. J., on the ejected blocks of Monte Somma, Prec. 94-

Judd, Prof. J. W. (President), Address on presenting the Wollaston Gold Medal to Mr. H. B. Medlicott, Prec. 3z; Address on handing the Balance of the Wollaston Donation Fund to Dr. A. Geikie for transmission to Mr. John Home, Prec. 33 ; Address on handing the Murchison Medal to Dr. A. Geikie for transmission to Prof. J. S. Newberry, Prec. 34; Address on handing the Balance of the Murchison Geological Fund to Dr. H. Woodward for transmission to Mr. E. Wilson, Prec. 36; Address on presenting the Lyell Medal to Prof. H. A. Nicholson, />roe. 37; Address on presenting one moiety of the Lyell Geological Fund to Mr. A. H. Foord,

GENERAL INDEX. 849

Prec. 39; Address on presenting the second moiety of the Lyell Geo- logical Fund to Mr. T. Roberts, Prec. 39. Anniversary Address, February 17,1888, Obituary 1Vo~izes o f Deceased Fellows :--Mr. Arthur (Jhampernowne, Prec. 41 ; Mr. John Edward Lee, Prec. 4z; Rev. WiN liam S. Symonds, Prec. 43; Sir William Vernon Guise, Prec. 44; Rev. A. H. Winnington Ingrain, Prec. 45; Sir Julius yon Haast, Prec. 45 ; Mr. Charles Henry Wil- son, Prec. 47; Mr. Alfred Morris, Prec. 47 ; Mr. Robert George Bell, Prec. 47; Mr. Rooke Pennington, Prec. 48 ; Baron de Baste.rot, Prec. 48; Mr. Edward rAnson, Capt. W. H. Breton, Mr. G. E. Eyre, the Rev. Lord Charles Harvey, Mr. A. 4~richtoh, Mr. James Baber, Dr. John Millar, Prec. 48 ; Prof. Bern- hard Studer, Prec. 49 ; Prof. Lau- rent-Guillaume de Koninck, Prec. 5o; M. Jules Desnoyers, Prec. 51 ; Dr. Ferdinand v. Hayden, Prec. 52; Count Marschall, Prec. 53.-- Address on the work done by the Society and its Fellows, on the pro- gress of Geology, and on the relation between Pal~eontology and Geology, Prec. S3.

Jukes-Browne, Mr. A. J., on a new species of Holaster, 364.

KammannassieBergen, section through. the, 270.

Karoo Beds, 245. - - Desert, section through the, 270.

Keeping, Mr. H., Mr. J. S. Gardner, and Mr. H. W. Monekton on the Upper Eocene, comprising the Bar- ton and Upper Bagshot formations, 578.

:Keiskama river, section across, 270. Kentmere, sections of Stockdalo Shales

in, 684. Kewenian series, 803. Kilmelfort, tachylyte from, 303. Kilroe, Mr. J. R., on the Directions

of Ice-flow in the north of Ireland, 827.

Kimberley, section through, 270. -------, trap at De Beer's mine, 254.

Shales, 244. KingWilliam's Town, section through,

263, 270. Kirkby, Mr. James W., on the occur-

rence of Marine fossils in the Coal- measures of Fit~, 747.

Knap-Hill Asylum, outlier of Upper Bagshot near, 610.

Knock, Stoekdale Shales near, 699. Knockan Cliff, section from the, to

the Cromalt Hills, 427. "Kunker" of the Melkote area, 642 ;

analysis of, 642. Kurck, Baron, on the Graptolites of

Bollerup, 711.

Labham Reefs, gneissose and schistose rocks from, 317.

- - - - Rock, granulitie rocks of, 317. Laecolite of Mynydd Penarfynydd,

458, 459. Lake District and Moffat area, equi-

valence of Graptolitie zones in the, 7O9.

Landenian, Lower, 91; Mollusea of the, 93.

Land-surface, Cambro-Silurian, denudation of the, in the North-west Highlands, before the deposition of the Old Red Sandstone, 438.

Langwell, section at, 427. Lapworth, Prof. C., on the North-

west Highlands, 385. Laurentian system of Canada, Western

Europe, and the interior of Ame- rica, 798.

Lavas, subaerial, of the Stormberg series, 255.

Leavening, section of Lower Chalk at, 341 ; section of Cretaceous deposits at, 366.

Lepidotoid Ganoids from the early Mesozoic deposits of the Orange Free State, 138.

Lewisian, 800. Lias, relation of, to the limestone of

Strath, Skye, 71. Limestone, altered, of Strath, Skye, 62 ;

under the Salt in Durham, analyses of, 763.

N _ plateau at Inchnadamff, 419. Limestones, sporadic, in the pelites

of Anglesey, 476, 488, 508. Lincolnshire, general succession of the

.Lower beds of the Upper Cretaceous m, 331.

~ , South and Central, sections of Upper Cretaceous beds in, 366.

~ , stratigraphy of the Upper Cre- taceous series in, 322.

- - and Yorkshire, Mr. W. Hill on the lower beds of the Upper Creta- ceous series in, 320.

Lithology of the Limestone of Stratb, Skye, 65.

Lizard, Mr. H. Fox and Mr. J. J. H.

850 6E~maAt INDEX.

Teall on the Gneissic rocks off the, 309, 314.

Llanbadrig, coast near, 518. Llanberis, Pre-Cambrian quartz-re]site

of, 533. Llandovery, occurrence of Stockdale

fossils in the, 713. Llandrygarn, dioritic rocks of, 498;

granite of Hen-bias, near, 495. Llaneilian, 516. Llanerchymedd, rocks near, 501. I/anfaelog, granite of, 495. Llanfeehell Grit, 515. Llanfihangel, dioritic rock near, 499. Llangaffo cutting, section in, 505. Llangefin, agglomerates near, 487. Lleyn Peninsula, Monian rocks in the,

530. Llyn Padarn, section from Dinas Di-

norwic to, 287. . . . . and Moel Tryfaen, conglo-

merate &c. of, 281. Llyn Trefwl4 granite near, 482; plan

of ground west of, 483. Loanan river, section by the, 424. Loch Assynt, section from, to Cnoc an

Droighinn, 420. Loch-Broom district, succession of

Cambrian rocks in, 402. Loch Glendhu, microeline-mica dyke

in Arch~ean gneiss at, 390; section between Strath nan Carran and, 415.

Loch Leathaid Bhuain, section through, 415.

Loch More, section of the grotmd between, and Strath nan Carran, 415.

Loch na Cagrach, section through, 417.

Londeshorough, sections of Lower Chalk near, 340, 346.

London area, Barton series of the, 606.

Basin, Rev. A. Irving on the stratigraphy of the Bagshot Beds of the, 164.

- - - - , Upper Bagshot Sands in the, 580.

- - Clay, 105 ; basement bed of the 102 ;Mollusea of the, 103.

Long-Mead-End Sands, 593. Longmore, well-section at, 173. Longmynd, Monian rocks in the, 542. Louth, section of Cretaceous beds

near, 327. Lower Bagshot sands, 105. ~ - - Barton, or Highcliff Beds, 587 ;

fauna of, 588. Browgill beds, 676, 678, 685,

687, 692, 699.

Lower Chalk in Yorkshire, 338, 339 ; of Lincolnshire, fossils from the, 348 ; of Yorkshire, fossils from the, 351.

Headon, section through, at Hordwell, 596.

Limestones of Clifton, organisms from the, 187.

..... Limestone Shales of Clifton, insoluble residues from, 190.

Lower Skelgill beds, 660, 665. Ly .igdekker, Mr. R., on a new Wealden

odont and other Dinosaurs,

, on the skeleton of a Sauroptery- from the Oxford Clay, near

Proc. 89. Lyell Geological Fund, award of the,

to Mr. A. H. Foord and Mr. T. Roberts, Prec. 39.

Medal, award of the, tb Prof. H. Alleyne Nicholson, Proc. 37.

Macculloeh, John, on the North-west Highlands, 379.

Maen Gwyn Farm, plan of, 493. Maen-yr-esgyll quartzite, 478. Magnetite in greeusand at base of

Thanet Sand, 757. Malmeshury beds near Cape Town,

240, 241. Malverns, Huronian in the, 802;

Upper Laurentian in the, 800. Malvin, gneiss from, 317. Man-of-War Rocks, 309, 310, 311. - - - - , gneiss and greenstone from,

315. "Map of the district between Bangor

and Caernarvon, 272. of the Durham Salt-district,

762. of the Lizard and adjacent rocks

and reefs, 316. of the Outcrop of Cretaceous

Rocks in Lincolnshire and York- shire, 321.

of the Sam district, 443. - - - - showing glaciation of the north-

ern parts of the British Isles, 828 ; of the North of Ireland, showing the North-Irish system of glaciation, 831.

showing the position of some of the auriferous lands in Mysore province, 636.

showing Upper Bagshot Sands of Bagshot area, 616.

showing glaciation of the northern parts of the British Isles, 828.

- - - - of the north of Ireland, showing

o ~ L INDEX. 851

the North-Irish system of glaciation, 831.

Marine fossils, occurrence of, in the Coal-measures of Fife, 747.

Marr, Mr. J. E., and Prof. H. A. Nichol- son on the Stockdale Shales, 654.

Mealy Gill, section in, 689. Medlicott, Mr. H. B., Award of the

WoUaston Gold Medal to, Prec. 3z. Megalosaurus, 59. Mcirings Poort, section in, 257. Melin Ddrydwy, section on west side

of stream at, 491. Melkote area, 637 ; plan of the, 637 ;

section of the, 638; rocks of the, 637, 649.

Men Hyr, gneissose rock from, 314. Mdn Par, gneissose rock of, 317. Mersey, Dee, and Ribble, denudation

of the Low-level Marine Boulder- clay of the, 291.

Mesozoic deposits, early, of the Orange Free State, two new Lepidotoid Ganoids from the, 138. �9 - rocks, deficiency of, in Eastern Canada, 815.

Metamorphism of Cambrian strata in the North-west Highlands, 431 ; of, Silurian strata, 433.

of the Igneous rocks intrusive in the Cambrian and Silurian strata of the North-west Highlands, 434.

produced by intrusive rocks in the Cambrian and Silurian strata of the North-west Highlands, 410.

Mica, development of flakes of, in felspar crystals, 36.

Micaceous layers, overfolding of, along thrust-planes in Archmcan gneiss, 397.

Mica-schists of Eastern Anglesey, 505.

- - - - of the Melkote area, 638, 639, 640, 641, 649.

Microcline-mica, conversion of, into mica-schists, 393.

dyke in Arch~ean gneiss at Loch Glendhu, 390.

Middle Barton, or Barton Clay, 588 ; fauna of the, 589.

- - - - Chalk in Lincolnshire and York- shire, 364 ; minute structure of the, 357.

- - - - Limestones of Clifton, organisms from the, 188; insoluble residues from the, 191.

Skelgill beds, 665, 672, 687, 702.

Middlesborough, borings at and nesa', 761, 763, 764, 765; boring opposite, section of the, 779, 782.

Middlesborough, discovery of Rock- salt at, 761, 766.

Minute structure of Cretaceous beds in Lincolnshire and Yorkshire, 354.

Mitcheldeania Beds, insoluble residues from, 191.

Moel Tryfaen, Pre-Cambrian quartz- felsite of, 533.

Moel Tryfaen and Llyn Padarn, Con- glomerate &e. of, 28l

Moffat area and Lake'I)istric~, equi- valence of Graptolitic zones in the, 706, 709.

Moine thrust, 412, 414, 416, 418, 423, 425, 426, 428, 430, 434, 435, 436.

�9 thrust-plane, section across Ben Arkle to the, 415; succession of strata above the, 436.

Molteno, section through, 270. - - - - Beds, 246 ; coals of the, 248. Monckton, Mr. H. W., Mr. J. S.

Gardner, and Mr. H. Xeeping on the Upper Eocene, comprising the Barton and Upper Bagshot formations, 578.

Monian system of rocks, Prof. Blake on the, 463.

system, arrangement of groups in the, 536 ; table of distribution of the rocks of the, 539 ; subdivisions of the, 541; development of, in other areas, Longmynd, St. David's, Wrekin, 542.

Mwaogras argenteus, zone of, 669, 672, 690.

Clingani, band of, 673, 674, 682, 684, 695, 698.

- - - - , band of, in Skelgill Beds and Birkhill Shales, 708.

eonvolutus, zone of, 671, 672, 680, 684, 688, 695, 702.

cr/spus, zone of, 677, 678, 685, 687, 690, 692, 693, 699, 705; zone of, in the Gala Group, 709.

- - fimbriatus, zone of, 667, 672, 680, 685, 686, 689, 695, 699, 702.

, argenteus, and convolutus, zones of, in the Skelgill Beds, represented by the zone of 11I. gregarius in the Birkhfll Shales, 707.

gregarius, zone of, in Birkhill Shales, represented by the zones of M. fimbriatus, argenteus, and convolutus in the Skelgill Beds, 707.

�9 spinigerus, zone of, 673, 674, 682, 685, 686, 689, 690, 691, 695, 698, 702 ; zone of, in Skelgill Beds and BirkhiU Shales, 708.

turr~ulag~, zone of, 676, 678, 690, 692, 699, 704, 705; zone of, in the Gala Group, 709.

852 GENERAL INDRX.

Mons, Calcaire de, 90. Monte Somma, Dr. H. J. Johnston-

Lavis on the ejected blocka of, Prec. 94.

Morlaix, Prof. Bonney on some results of pressure and of the intrusion of Granite in stratified Palmozoic rocks near, 11.

Morosaurus, ,56. Mortars in gneiss, Seringapatam area,

646. Morton, Mr. G. H., on recent re-

searches in Cae Gwyn Cave, 571. Movement of Seree-material, ~Ir. C.

Davison on the, 0_32, 825. Movements, horizontal, of rocks, Mr.

W. Barlow on the, 783. Mullaghderg, Donegal, Dr. F. H.

Hatch on the spheroid-bearing granite of, 548.

Murchison, Sir R. I., on the North- west Highlands, 380, 382.

Murchison Geological Fund, award of the, to Mr. Edward Wilson, Prec. 36.

Medal, award of the, to Prof. J . S. Newberry, Prec. 34-

Mynydd Llwyddiart, area south-west of, 509.

Penarfvnydd, section through southern end of, 458.

- - Roscolyn, section in gorge below, 478.

Mysore, Prof. Bonney on specimens from, 651.

- - p l a t e a u , general characters of the, 650.

- - province, Mr. G. Attwood on some of the Auriferous tracts of, 636.

Nanny Goat's House, Speeton, section of cliffs near, 366.

Narasimha Temple, section through, 638.

Newberry, Prof. J. S., award of the Murchison Medal to, Prec. 34.

New Brunswick, Cambrians of, 804; comparison ofolder Palaeozoic rocks of, with those of Britain, 813; Huronian of, 802, 803 ; Laurentian in, 799, 800; Ordovician in, 807, 811 ; Silurians of, 812.

Newfoundland, Cambrians of, 804, 805 ; Huronian rocks of, 801,803 ; Laurentian rocks of, 799 ; Silurian rocks of, 811; Quebec g r o u p i n , 807 ; Trenton Limestone in, 807.

New Zealand, Capt. F. W. Hut ton on a hornblende-biotite rock from Dusky Sound, 745.

Nicholson, Prof. H. A., award of the Lyell Medal to, Prec. 37-

, and Mr. J. E. Marr on the Stockdale Shales, 654.

Nicol, James, on the North-west Highlands, 380.

Nieuwveldt mountains, sectiou through the, 270.

Nodosaria longisosta, 6. Norfolk, analysis of Gault of, 358.

, section of Upper Cretaceous beds in north-west, 366.

Northern district o f Anglesey, 513, 523.

North Ormesby, boring at, 765; section in, 782.

Norway, occurrence of Stockdale- shale fossils in, 713.

Nova Scotia, Cambrians of, 805; Ordovician in, 807 ; Carboniferous series in, 814, 815; comparison of older Palmozoic rocks of, with those of Britain, 813; Silurian rocks of~ 811; Triassic Red Sandstone of, 815.

Nummulite-band at base of Barton series, 587.

Nuramulites elegans, zone of, fossils of the, at Whiteeliff Bay, 605.

- - variolarius bed at Selsey, 605.

Obermittweida Conglomerate, Prof. Bonney on the composition and alteration of the, 25.

, Prof. Hughes on the position of the, 20.

- - , section across the valley at, 22 ; matrix of conglomerate of, 26.

Ogo-gyfwr, section at, 519. Oldham, Mr. R. D., on the law that

governs the action of flowing streams, 733.

Oldbaven Beds, 102 ; Mollusca of the, 103.

Old Red Sandstone, 813. , denudation of Cambro-

Silurian land-surface before the deposition of the, 438.

Oliphants River, section across, 270; conglomerates of the, 264.

- - - - ~ Valley, section showing the position of the Conglomerate of the, 257, 270.

Orange Free State, South Africa, Mr. A. S. Woodward on two new Lepi- dotoid Ganoids from the early Mesozoic deposits of the, 138.

Ordovieian System in Canada, Western Europe, and the interior of America, 807.

Organic remains in greensand at base of Thanct Sand, 758.

GENERAL

Organisms of the Carboniferous Lime- stone series at Clifton, 187.

Ornithischia, 86. Ornithopsis Hulkei, 54. Ostracoda in Foraminiferal deposits in

Fiji, 7. Otter Mouth, Red rocks at, 153. Oughton, boring at, 764. Outliers of Cambrian strata, formation

of, in Pre-Silurian time, by folding and denudation, 402, 403.

Oxford Clay, Sauropter~gian from the, near Bedford, Prec. 89.

Oykel, river, alterations of Cambrian strata on the, 433.

Valley, section from the, across Ben More, 423.

Paleontology of the Limestone of Beinn Suardal, Skye, 69; of the Cambrians, 74; of the Caleaire de Mons, 90 ; of the Thanet Sands, 93; of the sands of Bracheux, 96; of the Woolwieh and Reading series, 100; of the Oldhaven Beds, 103; of the Red Chalk, 347 ; of the Lower Chalk of Lincolnshire, 348; of the Chalk-marl and Totternhoe Stone, 349; of the Lower Chalk of York- shire, 351 ; of the Upper Bagshot Sand, 616; of the Barton Beds, 623 ; of the Stockdale Shales, 726 ; of the Fifeshire Coal-measures, 747.

Pal~eopicrite-dykes in Arch~ean gneiss of North-west Highlands, 390.

Palmozoic rocks, stratified, Prof. Bonney on some results of pressure and of the intrusion of Granite in, near Morlaix, Brittany, 11.

and Eozoic rocks of the At- lantic Coast of Canada, in comparison with those of Western Europe and of the interior of America, Sir J. W. Dawson on the, 797.

Pant-y-bwlet, section in Quarry near, 526.

Parph district, order of succession of Cambrian rocks in the, 401.

Parys Mountain, Anglesey, district east of, 524, 530.

Peach, Mr. B. N., see Geological Survey.

Peach, C. W., on fossils in the Dur- ness Limestone, 380, 382.

Pebble-bed at base of Upper Bagshot, 608.

Pebidian, Huronian age of the, 802. Pegmatites, formation of, in horn-

blende-sehist and granitoid gneiss, 393.

Q . J . G . S . No. 176.

n~DF~X. 853

PeliCe, lenticular, 472 ; of Camawg, in Anglesey, 472; of Central Anglesey, 496.

Pelorosaurus, 55, 57. Pen-Craig, section from, to south of

Salm, 449. Pen Ervan, gneissose and schistose

rocks from, 317. Pen-lon, section in quarry east of, 503. Penrhyn Quarries, Bethesda, near

Bangor, Trilobites in the Upper Green (Cambrian) Slates of, 74.

Pen-y-pare, Cemmaes, looking east, 518 ; quartz-knob at, 508.

Peridote-dykes in Archman gneiss of North-west Highlands, 390.

Peridotites, conversion of, into talcose schists, 393.

Perlitie felsites, Mr. F. Rutley on some, from the flanks of the Here- fordshire Beacon, 740.

Permian deposits of the South Devon Coast, 160.

and Triassic rocks of the Durham district, classification of the, 767.

Petalograptus cometa, zone of, in the Birkhill Shales, 708.

PhacoTs elegans, 720. - - , var. glaber, 721. mucronatus, 721.

�9 glaber, zone of, 670, 672, 681, 688, 690, 695, 702.

Picrite, hornblende-, of the Sam district, 454.

Pipe-rock zone, 403. Pirbright, Upper-Bagshot outlier

near, 611. Plan of farmyard of Maen Gwyn,

493. of ground west of Llyn Trefwll,

483. : of junction of Porphyry and

Conglomerate, in Twt Hill Field- quarry, Caernarvon, 273 ; of Twt Hill, 274.

- - of quarry at Bryn Efail, 283. - - of shore west of Porth-y-ly-wod,

491. of the Seringapatam area in

Mysore, 644. of the district east of Melkote,

in the Hassan district of the My- sore province, 637.

showing deflection and disruption of dykes by vertical thrust- planes, 394.

showing displacement of a quartz-vein, 640.

Plans of Cae Gwyn Cave, 135, 573. Plas Llanfihangel, relations of granite

and gneiss at, 492. 3T.

854 OENm~AT. II~D~.

Poaka Beck, Stockdale Shales of, 697 ; section at, 698.

Point .~Elianus, 516. Pont-rhyd-defaid, dioritic rocks near,

498. Porphyritic dykes in the Seringapatam

area, 647, 648. felstone, from Mysore, characters

of, 652. Porphyry and Conglomerate, plan of

junction of, in Twt Hill Field- quarry, Caernarvon, 273.

... of Llyn Padarn and Moel Try- faen, 282.

Port Clarence, boring near, section in, 779, 782.

Perth Llanlliana, view in, looking east, 520.

Llechog, plan of hill-crest west of, 522.

Rhyffydd, eleawge and con- tortion shown at, 481.

Porth-y-defaid, Pre-Cambrian rocks at, 468, 472.

Porth-y-ly-wod, plan of shore west of, 491.

Post-glacial time, Mr. T. Mellard Reade's estimate of, 291.

Potsdam Sandstone, 806. Pre-Cambrian land-surface," denuda-

tion of the, in the North-west High- lands, 400.

movements, later, in the Archon rocks of the North-west Highlands, 391,399 ; effects of, on the intrusive dykes, 391 ; effects of, on the gneiss, 395.

rocks of Anglesey, 464, 466; of the Lleyn Peninsula, 530.

Pressure, Prof. Bonney on some results of, in stratified Pal~ozoie rocks near Morlaix, Brittany, 11.

Prestwich, Prof. Joseph, on the Corre- lation of the Eocene strata in Eng- land, Belgium, and the north of France, 88.

Prince Albert, section through, 270.

Prince-Edward Island, Triassic red sandstone of, 815.

Pro~t~ brachypygus, 725. Proiguanodonts, 51. Pullan, section through, 426. Pull Beck, Stockdale Shales in, 687.

Quadrant Island, 312, 313 ; granulite and greenstone of, 317.

Quartz and flakes of mica, develop. ment of, in felspar crystals, 36.

in greensand at base of Thanet sand, 755.

Quartz, micro-crystals of, in the Car- boniferous Limestone at Clifton, 194.

knobs in the rocks of Angle- sey, 475, 488, 508; at Pen-y-pare, Beaumaris, 508.

Quartzite, slickensides on, 639 ; of the Melkote area, 640.

of the neighbourhood of Sudbury, Canada, 35; of the Zuurbcrgen, Zwartebergen, and Wittebergen,240, 241.

Quartz-rock of the Seringapatam area, 646.

Quarts-veins, displacement of, 640; downward attenuation of, in the Melkote area, 643; double faulting of, 644.

Quebec Group, 807, 808. Qainaig, section from, to the Ben-

more thrust-plane, 418. Quiraing, Skye, tachylyte from, 304.

Rastrite~ raaximus, zone of, 703; in Skelgill Beds and Birkhill Shales, 708.

Rawthey, river, Stockdale Shales on, 705.

Reade, Mr. T. Me[lard, an estimate of Post-glacial time, 291.

Red beds of the Stormberg series, 253. Red Chalk, analyses of, 358; fossils

from the, in Lincolnshire and Yorkshire, 347; minute structure of the, 355; in Lincolnshire, 324; in Yorkshire, 333 ; of Lincolnshire and Yorkshire, 359.

Red Crag, Ai~urus anglicus, a new Carnivore from the, 228.

Red.Rock Series of the Devon coast- section, Rev. A. Irving on the, 149.

Regno~aurus, 53. R e ~ on the recent work of the

ogieal Survey in the North- west Highlands of Scotland, 378.

Residues, insoluble, obtained from the Carboniferous Limestone Series at Clifton, 186.

Rhosbeirio Shales, 515. Rhyl, fossils of the drift at, 120. Ribble, Dee, and Mersey, denudation

of the Low-level Marine Boulder- clay of the, 291.

Valley, Stockdale Shales in, 706.

Rio ~l~into, comparison of ore deposits of, with those at Sudbury, Canada, 836.

Roberts, Mr. T., award of one moiety of the Lyell Geological Fund to, Prey. 39.

6EN~RAT~ INDEX. 855

Rock-fragments imbedded in Carboni- ferous Limestone near Dublin, probable mode of transport of, 371.

Rock-mortars in gneiss, Seringapatam area, 646.

Rock-salt, discovery of, at Middles- borough, 761, 766.

Rocks east of Parys mountain, Pro- Cambrian age of the, 524; eruptive, in the neighbodrhood of Sam, Caer- narvonshire, 442; horizontal movements of, Mr. W. Barlow on the, 783; South African, classification of, o_A0.

Roseolyn, South-Stack series near, 477.

Rubies, in the matrix, from Burmah, Proe. 9 x.

Rutile in greensand at base of Thanet Sand, 757.

Rutley, Mr. F., on perlitie felsites, probably of Arch~ean age, from the flanks of the Herefordshire Beacon, and on the possible origin of some Epidosites, 740.

Sables de Bracheux, 94; Mollusca of the, 96.

St. Asaph Drift, fossils of the, 120. St. David's, Monian rocks at, 543. Salcombe Dingle, Red-rocks at, 150. Saliferous rocks of Durham, strati-

graphical position of the, 765. Salt, working of, in the Durham

district, 776. Salt-district of Durham, Mr. E.Wilson

on the, 761 ; area of the, 773. Saltholme, boring at, section in, 779,

782. Sandhurst, Upper Bagshots at, 613,

614. Sands, Upper Bagshot, 580; Thanet,

greensand at base of, 755. Sanspareil, granulite and greenstone

of, 317. Sam, Caernarvonshire, Mr. A. Harker

on the eruptive rocks in the neighbourhood of, 442. 44~section~_ from Pen-Craig to near,

district, map of the, 443. Saurisehia, 86. Sauropoda, 53, 85. Sauropterygian, Mr. R. Lydekker on

the skeleton of a, from the Oxford Clay, near Bedford,/)roe. 89 .

Scandinavia, Huronian in, 802. Scania, representatives of Stockdale

Shales in, 710.

Scelidosauridm, 52. Schists, frilled, 431, 435. Schoorstein Berg, section through the,

270. Scotland, equivalents of Stockdale

Shales in, 706. , report on the recent work of

the Geological Survey in the North- west Highlands of, 378.

1 , west, marine fossils from the Coal-measures of, 750.

Scree-material, Mr. C. Davison on the movement of, 232, 825.

Seaton Carew, borings at and near, 764, 765 ; sections in, 781, 782.

Sections :--across the valley at Ober- mittweida, 22 ; at Torr Mot, Bore- raig, Loch Eishort, 68; in Allt Leth Slighe, Strath, 71; in Cae Gwyn Cave, 127, 128; in quarry opposite Ffynnon Beuno Cave,132 ; showing junction of the Budleigh- Salterton Pebble-bed and Permian Marls, 155 ; of Eocene Beds, Didcot and Winchester Railway, 179; in the valley of the Buffels River, 259; north of Aberdeen, showing the junction of the Karoo and Eeca beds, 261; showing the general geological structure of the Ca pe Colony from the Zwarteberg to the Stormberg Mountains, 256, 270; generalized, from Cape Town to the Transvaal, 256, 270; showing the position of the Conglomerate of the Oliphant~ Valley, 257, 270; through Grahamstown and King William's Town, 263, 270 ; at Twt-Hill Field- quarry, Cacrnarvon, 273; in road near Bryn Efail, 284; from Dinas Dinorwic to Llyn Padarn, 287; in Speeton Cliff', 354 ; of lower beds of the Upper Cretaceous series in North-west Norfolk, South and Central Lincolnshire, and South Yorkshire, and at Leavening and Speeton, 366 ; of original Areh~ean gneiss, 389; of overfolding of mieaceous layers along thrust- planes in Arch~ean gneiss, 397; showing double foliation in Areh~ean gneiss, 398; in the Parph district, 401 ; of Silurian strata at Durness and Eriboll, 404 ; of Silurian strata from Eriboll to UUapool, 406; in west face of Glasven near Loch Gamnheach, 413 ; across Ben Arkle to the outcrop of the Moine thrust- plane, 415; showing structure of ground between Loch More and Strath nan Carran, 415; showing

856 GEZ~'P..A �9 I N D E X .

structure of ground between Strath nan Carran and Loch Glendhu,415; from Glendhu across the Stack of Glencoul to Cnoc na Fhuarain Bhain, 417 ; from Quinaig east to the Ben- More thrust-plane, 418 ; from Loch Assynt to Cnoc an Droighinn, 420 ; across Coinne-mheall from one of the sources of the Traligill east to Corrie Mhadaidh, 421; from the Bealloch across Coinne-mheall to Corrie Mhadaidh, 421; from the Oykel Valley across Ben More, 423; from Canisp to Sgonnan More, 424 ; from :Elphin to Allt Ealag, 426 ; from the Knockan Cliff to the Cromalt Hills, 427; along Strath Kanaird at Langwell, 427 ; south of Ullapool, 428 ; of Cambrian strata on Coinne-mheall, 433 ; in the most southerly quarry at Cefn-Amwlch, 446; from Pen-Craig to south of Sam, 449; through the southern end of Mynydd Penarfynydd, 458 ; in gorge below Mynydd Roscolyn, 478 ; in Berth Saint, Roscolyn, 479 ; showing running of one bed at South Stack, 480; in quarry 1~ mile south of Cerrig Ceinwen, 488; on west side of Dinas Llwyd, 489 ; on west side of stream at Melin Ddry- dwy, 491 ; at Cefn-eth-groen Farm, 494 ; in quarry east of Pen-Ion, 503; in Llangaffo cutting, 505; showing eastern face of quartz-knob, Pen-y- Pare, Beaumaris, 508 ; on west side of Careg Gwladys, 511; looking north, Careg Gwladys, 512 ; at Ogo- gyfwr, 519; in Perth Llanlliana, looking east, 520; of Berth Wen, west side, 521 ; in quarry near Pant- y-bwlet, 526; across Shaft at Cae Gwyn Cave, showiug the continua- tion of the beds over the entrance, 563; at north-east end of excavation, Cae Gwyn Cave, 570; through Cae Gwyn Cavern, 574; of Beeton- Bunny beds, 592; of the Barton Cliff, 594; at Hordwell, west of Long Mead :End, 595 ; through the Lower Headon at HordweU, 596; of the Barton Beds, north face of cutting near Hinton-Admiral, 597 ; of contorted Lower Headon beds, 598 ; at Alum Bay, 599 ; at White- cliff Bay, 603; at Tunnel Hill, west of Pirbright Common, 611 ; on the South-eastern Railway near Wel- lington College Station, 614 ; of the Melkote area, 638 ; showing downward attenuation of Quartz-vein,

643 ; showing double-faulting of a Qaartz-vein, 644; through the Serin- gapatam area, 645; across Skelgill, 661 ; at ' Rake,' Browgill, 675 ; of isoe!ina!, Browgill, 680 ; near Stile :End, 683; at Far :End, Yewdale Beck, 688; in Mealy Gill, 689; in Torver Beck, 691; across Ashgill quarry, 693; across 'Cliff,' Apple- treeworth Beck,695; ofFarm, Apple- treeworth Beck, 696; at Poaka Beck, 698; in Spengill, 701 ; general, of the Stockdale Shales, 706; of the Coal-measures of Fifeshire, 748 ; of borings in the Durham Salt-district, 778, 779, 780, 781, 782 ; of Chalk- escarpment at Dewlish, Dorset, 819; of ore-deposit at Copper Cliff, Sud- bury, 835; of ore-deposit at Stobie Mine, Sudbury, 836.

Sedimentary series of the Northern district of Auglesey, 514.

Seeley, Prof. H. G., on Theaospo~yl_us /)av/ez/, Seeley, with some remarks on the classification of the Dino- sauria, 79.

Selsey, Upper Bagshot beds of, 605. Semionotus caTensis, 138. Septaria in the Barton Series, 589. 8eTtastr~a , Dr. G. J. Hinde on the

history and characters of the genus, 200.

8eTtastr~a, 217; seavad~ta, 219; mul- tilateralis, 222 ; hirtolamellata, 222 ; ramosa, 223 ; exeavata, 223 ; dis- ~2~r, 223 ; explanata, 223 ; Haimei,

; Fromenteli, 224; Eveshami, 224; ~ 224 ; ambigua, 224.

Forbes/, 205, 218; mode of growth of, 206; eorallites of, 207; septa of, 208; pseudocolumella of, 210 ; minute structure of, 211.

Seringapatam area, rocks of the, 644 ; plan and section of the, 645.

Serpentine masses in Anglesey, 481. Shag rocks, granulitie rocks of,

317. Sharpe, D., on foliation in the North-

west Highlands, 380. Sidmouth, Red-Rock series at, 149,

152; Vertebrate remains in the Triassic strata between Budleigh Salterton and, 318.

Silica, occurrence of, in the Carboni- ferous Limestones at Clifton, 194, 196.

Silurian strata in the North-west Highlands, 403 ; section of, at Dur- ness and Eriboll, 404; section of, from Eriboll to Ullapool, 406; metamorphism of igneous rocks

GE~RA'L INDEX. 857

intrusive in, 434; of the North- west Highlands, metamorphism of, 433.

Silurian system in Canada, Western Europe, and the interior of America, 811.

Skelgill, section across, 661. beds, comparison of, wiLh Birk-

hill Shales, 706. of Skelgill, 659; Lower,

660 ; Middle, 665 ; Upper, 672. Skye, Dr. A. Geikie on the age of the

altered Limestone of Strath, 62. , tachylyte from Quiraing in, 304.

Sluice-box, Mysorean, for gold-washing, 648.

Soapstone, Mr. H. B. Brady on the so-called, of Fiji, 1.

Soudan, Mr. V. Ball on some eroded Agate pebbles from the, 368.

South Africa, physical structure of, 256.

South-African rocks, classification of, 240.

South Cave, sections of Lower Chalk &c. near, 339; sections of Red Chalk near, 334, 335.

South Stack, section showing running of one bed at, 480.

- - - - Series, 476, 484. South Thoresby, succession of Creta-

ceous beds at, 326. Speeton Cliff, section in, 354. - - Cliffs, succession of Cretaceous

beds in, 345. - - - - , Red Chalk at, 337; sec-

tion of Cretaceous deposits at, 366. Spencer, Mr. J., on evidence of ice-

action in Carboniferous times, Proc. 93.

SpengiU, Stockdale Shales of, 700; section in, 701.

Sphero/d/na ornata, 6. Sphenospondylus, 46. - - gracilis, 47. Spheroids of the granite of Mttllagh-

derg, 552. Spinel in greensand at base of Thanet

Sand, 757. ~uati~a Cranei, 144. Stags, gneissose rocks from the, 315,

316. Staurocephalus limestone, 693. Stigmaria ficoides, Mr. S. A. Adamson

on a recent discovery of, at Clayton, Yorkshire, 375.

Stile End, section near, 683. Stobie Mine, Sudbury, section of ore-

deposit at, 836. Stockdale, Browgill beds of Browgill

and, 674.

Sfioekdale Shales, Mr. J. E. Marr and Prof. H. A. Nicholson on the, 654.

Shales, comparison of, with beds in other areas, 706 ; representa- fives of the, in Seania, 710 ; general characters of the, 714 ; table of the distribution of the zones of the, 717 ; formation of the, 718 ; age of the, 719 ; fossils of the, 720.

Stormberg Beds, 240, 253. Strath, Skye, Dr. A. Geikie on the age

of the altered Limestone of, 62. Strath Kanaird, section along, 427.

nan Carran, section of the ground between Loch More and, 415; section between, and Loch Glendhu, 415.

Stratigraphy of the Limestone of Strath, Skye, 67 ; of the Upper Cretaceous series in LincolnsItire, 322.

Streams, Mr. R. D. Oldham on the law that governs the action of flowing, 733.

Stroneehrubie, plateau east of, 420. Stubbington, Upper Bagshot beds of,

606. Sudbury, Greensand bed at, 758.

- - , Canada, Prof. Bonney on a part of the Huronian Series in the neighbourhood of, 32.

- - - - , quartzites of, 35, 41; matrix of conglomerate from, 35; breecias of, 38 ; grits of, 40.

- - , Mr. J. H. Collins on the copper-deposits of, 834.

Sunningdale, Bagshot beds near, 166, 167.

Sunny Brow, 687. Sussex, Squatina Cramei and the

mandible of JBelonostomus ~inctu~ from the Chalk of, 144.

Suva, Fiji, ibraminiferal deposit at, 2.

Swindale Beck, Stockdale Shales of, 699.

Swinley, Bagshot beds at, 165.

Table-Mountain Sandstone, 241. Tachylyte, Mr. G. A. J. Cole on some

additional occurrences of, 300. o f Ardtun, analysis of, 303.

Tafarn-y-botel, granite in gneiss at, 492.

Tarannon Shales, Stockdale-shale Trilobites from the, 714.

Taylor's Rock, gneiss and greenstone from, 315.

Teall, Mr. J. J. H., on Rock-speeimeus collected by Mr. Fox from the islands off the Lizard Head, 314.

858 6 E N m ~ t INDZX.

Teall, ~fr. J. J. H., on dykes at Seourie, 386.

Tees, boring on south bank of the, opposite Middlesborough, section in the, 779, 782.

Mouth, boring at, section in, 782. Valley, discovery of rock-salt in

the, 761, 766. Teesdale, Stockdale Shales in, 706. Terrestrial movements, classification

of, 412. Tertiaries and Chalk, unconformity

between, 759. Tefford Wood, succession of Cretace-

ous beds at, 326. Textularia quadrilatera, 5. Thanet Sand, Miss M. I. Gardiner on

the greensand-bed at the base of the, 755.

�9 �9 Sands, 91 ; Mollusca of the, 93~ Thecospondylus Daviasi, 79. Theropoda, 59. Thickening of strata, relation of

horizontal movements of rocks to the, 783.

Thorn Hill, Aldershot, Upper Bag- shots at, 612.

~l~nrust-planes, explanation of, 389; deflection and disruption of dykes by, 394.

Thrusts, chief maximum, in theNorth- west Highlands, 4]2 ; elmrao- teristics of, 413.

, minor, major, and maximum, 412.

Time, estimate of Post-glacial, 291. �9 itanosaurus, 59. Tort Mot, Boreraig, Loch ]~ishort,

section at, 68. Torridon Sandstone, relation of, to

the Limestone of Strath, Skye, 70 ; in the North-west HighlandB, 400.

Torver Beck, section in, 691. Totternhoe Stone, equivalent of, in

Lincolnshire, 325 ; fossils from the, in Norfolk, Suffolk, and Lincoln- shire, 349; in Yorkshire, 351.

Tourmaline in greensand at base of Thanet Sand, 758.

�9 raeth Dulas, district west of, 502. Traligill, section from one of the

sources of the, across Coinne-mheall to Corrie Mhadaidh, 421.

Transporting action of flowing streams, 733.

Transvaal, discoveries of Gold in the, Proc. 3-

, generalized section from Cape Town to the, 256, 270.

~k-aps, intrusive and contemporaneous, of Cape Colony, 254.

~l~madoe in America, 806. ~l~riaseic deposits of the South Devon

coa~ 16o. . and Permian rocks of the Dur-

ham district, classification of the, 767.

Red Sandstone of Nova Scotia and Prince Edward Island, 815.

strata of the South coast of Devonshire, between Budleigh Salterton and Sidmouth, Mr. H. J. Carter on vertebrate remains in the, 318.

Trilobites, Dr. H. Woodward on the discovery of, in the Upper Green (Cambrian) Slates of the Penrhyn Quarries, Bethesda, near Bangor, 74.

~l~uehodon cantabrigiensis, 47. Troutbeck Valley, sections of Stock-

dale shales in, 685. Truncatulina mundula, 7. Trwyn-y-parc, limestone of, 518. �9 ~u]lberg, Prof., on the Silurian and

Cambrian deposits of Scania, 710. ~ m e l Hill, section of Upper Bagshot

in, 611; fossils from the Upper Bagshot sand of, 616. t-Hill field-quarry, section at,273 ;

plan of junction of Porphyry and Conglomerate in, 273; granite of, 533; ground-plan of, 274; age of conglomerate of, 275.

Tyn-y-cleout, section through, 287.

Ullapool, section of Silurian strata from Eriboll to, 406.

and Eriboll, physical relation~ of the strata between, 411.

Upper Bagshot beds, characters of, in London area, 615; in the Albert Asylum well, 608, 609.

Sand, fossils from the, 616.

~ series, 579. ]~rtons, 590. Browgill beds, 677, 678, 687,

692, 693. Limestone of Clifton, immluble

residues from the, 193. .... Skclgill beds, 672, 674.

Vasiler, gneissose rock from, 315. Veetissurus, 52. Vertebrate remains in Triassic strata

between Budleigh Salterton and Sid- mouth, 318.

Victoria West, section through, 270. Volcanic group of Careg Gwladys,

509; of the northern district of Anglesey, 517.

859

Volcanic series of the Lleyn Peninsula, 530.

Warfield, Bagshot Beds at, 168. War ter, section of Red Chalknear, 334. Wealden, Mr. R. Lydekker on a new

Iguanodont from the, 46. Wellington College, Upper Bagshots

at, 613; section on South-western Railway near, 614; well-section at, 614.

Welton, succession of Cretaceous beds at, 326.

Western District of Anglesey, 467, 484.

West ttartlepool, boring at, 764; boring at Saltholme near, section in, 781, 782.

Wethered, Mr. E., on insoluble residues obtained from the Carbon- iferous Limestone series at Clifton, 186.

,. , on the occurrence of "Galei- s2h~r~, Williamson, in the Carbo- niferous Limestone of Gloucester- shire, Proc. 9 x.

Wharram Station, section of Red Chalk near, 336.

Whitecliff Bay, section at, 603. Wick Hill, Clay-pit at, 172. Willowmoro, section through, 270. Wilson, Mr. Edward, award of the

Murchison Geological Fund to, Prec. 35.

, on the Durham Salt-district, 761.

Wiltshire Rock, granulitie rocks of, 317.

Winburg, intrusive trap-sheet at, 254. Wittebergen, Quartzites of the, 240,

241 ; Dwyka Conglomerate on the, 243 ; section through the, 270.

Wolds, condition of the Chalk on the brow of the Yorkshire, 332.

Wollaston Donation Fund, award of the, to Mr. John Home, Prec. 33.

Wollaston Gold ~fedal, award of the, to Mr. H. B. Medlicott, Prec. 3z.

Woodward, Mr. A. S,, on some remains of 8~uatina Cranei, sp. nov., and the mandible of J~elonostomus c/nvtus, from the Chalk of Sussex, 144.

�9 , on two new Lepidotoid Ganoids from the early Mesozoic deposits of the Orange Free State, South Africa, 138.

Woodward, Dr. 1~., onthe discovery of Trilobites in the Upper Green(Cam- brian) Slates of the Penrhyn Quarries, Bethesda, near Bangor, North Wales, 74.

Woolwieh and Reading Beds, 98; Mollusca of the, 100.

Worcester, section through, 270. Wrekin, Monian rocks in the, 543.

Y Foe], rocks of, 501. Yewdale Beck, Stockdale Shales in,

688. Ynys-y.fyddlyn, Pro-Cambrian rocks

near, 473 ; granite near, 473. Yorkshire, Mr. S. A. Adamson on a

recent discovery of ~t~m~r/~ flvoides at Clayton, 375.

and Lincohishire, Mr. W. Bill on the lower beds of the Upper Cretaceous series in, 320 ; succession of the Upper Cretaceous beds in, 331.

- - , South, section of Upper Creta- ceous beds in, 366.

Ypresian, Lower, 105, 106.

Zircon in greensand at base of Thanct Sand, 757.

Zuurbergen, quartzites of the, 240, 241.

Zwartebergen, quartzites of the, 240, 241 ; sections through the, 270.

END OF VOL. XLIV.

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