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GENERAL INDEX TO VOLUME CII

ABYSSINIA, Rift System in, 353, 354-5, 357 et sqq. ; late Jurassic peneplain in, 369-70, 373-4; A. plateau, E. scarp of, 374-5.

Acadian province of Canada, lxxxvi fig., Ixxxvii-lxxxviii.

Accounts (& Estimates), xii-xxviii. Acrothele pulchra, 309. Actinopeltis gen. nov., 324. - - f e i l d e n i sp. nov., 324-5, pl. xxii. Aeger marine band, lxxi, lxxv, lxxvi,

lxxxi. Aegirine-augite in banded ironstone of

Tuckanarra, 132-3. Aerial photography, geology &, vii. Afar plain {Abyssinia), 369, 370. Afon Gamlan (Merioneth), 9 et sqq. ; sect.

along, from the Afon i~Iawddach, 12. Afon Mawddach (Merioneth), 3, 15, 19;

M. estuary, 9. Afon Wen (Merioneth), 3, 19. A(~m~T,L, S. O., on dolerites of Welfield

area, 161-3. AmY hypothesis of isostasy, 214-6, fig.,

235. Albert, Lake (E. Africa), 342, 345, 352

et sqq. Albert Rift {East Africa), 340, 342 et sqq. Alpine geology, evolution of, xevii-cxiv. America (North), correlation of Palaeo-

zoic with Greenland equivalents, 307; Pennsylvanian of, lxxxiv-xc, figs.; glacial map of, exhib., xcv.

Amman Marine Bed, lxix, lxxii et sqq. Ammanian ( = Lower Westphalian), li

et sqq. Amphibole in metamorphosed banded

ironstones of W. Austr., 128, fig., 129 ; in eulysitic rocks of W. Austr., 136, 137-8, figs.

ANDERSON, E. 1VL, on the Great Glen Fault, 72-3.

Andesite, granitization of, 421-2, figs., 424-5, 428-9, fig.

Anglesey, as source of Harlech Dome rocks, 34.

A~OLO-IRANIAI~ OIL COMPANY (& BuR- �9 ~H On~ COMPANY), establish fund for students' tours, i, vii.

angustifolius horizon (Ordovician), Green. land, 308.

Annual Report of Council, vi-x. Anthracomya, name replaced by Anthra.

conaia, lxiii footnote. Anthracona~a, lxv; the name, lxiii foot-

note; vert. & horiz, distribn of, lxiv et sqq., lxvi fig.

Anthraconauta, lxiii & footnote; vert. & horiz, distribn of, lxiv et sqq., lxvi fig.

Anthracosia, lxiii & footnote; vert. & horiz, distribn of, Ixiv et sqq., lxvi fig.

aquilina, lxiv. Anthracosphaerium, vert. & horiz, dis-

tribn of, lxvi fig. Apatite, in banded ironstones of Booly-

gee Range, 132, 133; in Welfield dolerites, 162.

Aplite, Cape Town, 504--5 ; optical &c. data, 516; chem. anals., 517.

Aplogranite, Cape Town, 505. Arakan-Assam province, density scale

of Tertiary rocks in, 219-20. Arakan Yoma (Burma), 222, 227, 230. Archaeorthis groenlandica, 320. /~RKELL, W. J., 75. Artro Fault, Upper & Lower (Merioneth),

20-1. Assam-Arakan province, density scale

of Tertiary rocks in, 219-20. Assam Valley, 223 et sqq. Asterotheca oreopteridia, spores from,

257 fig., 258. Atomic bomb explosion, silica-glass

from, exhib., v. Augite, in Welfield dolerites, 161, 163. Augite-peridotite, Belhelvie complex,

469-70, 474, 475 chem. anal. Aulacotheca Hemingwayi, 279-81, figs.

Baehe Peninsula (Ellesmere Land), Cam- bro-Ordovician fossils from, 300 et sqq.

BACKLU~rD, H. G., on granitization, 443-6.

BAILEY, E. B., 37 ; on Great Glen Fault, 73.

Baltic facies of Lr Palaeozoic, 193-4. Bancroft-Haliburton area {Ontario),

granite-limestone contact in, 414-6. Banded haematite & iron formations.

See Jasper bars. Banding in rocks of Belhelvie district,

485-7, fig., pls. xxxii, xxxiii, 488-92. Bangueulu basin (N. Rhodesia) compared

w. Victoria basin, 365. Bantry Bay {Cape Town), 505, 513. Barber Booth Well, water from, 210. Baringo, Lake (E. Africa), 342. Barmouth Grits (Cambrian), of the Har-

lech Dome, 5, 10, l l et sqq. BA_RNAI~D, T., 460; (& A. WOOD) On

Ophthalmidium: a study of nomenclature, variation, and evolution in the Foraminifera, 77-109, figs., pls. iv-x.

Barnavave (Co. Louth), alteration of dolerite of, 418-9, fig., 424-5.

Barren Red Beds of Canonbie Coalfield, lix.

523

524 GEN]gRAL INDEX [vol. eli,

Basalt, Glasdrumman Port, basification of, 419-20, 424-5; of Gardiner R., rhyolitization of, 423, 424-5, 426, fig.

Bastion formation (Cambrian), Green- land, 308.

Bathyurellu~ teicherti, 325, pl. xxii. B~GG, J. L., receives Wollaston Fund,

xxxiv. Belhelvie (Aberdeenshire), gabbroie com-

plex of, 465-98, figs., pls. xxTi-xxxiii. Bengal Delta, 223, 227. B~Nso~, E., obit., xxxix. B~NT~AM, R., fossils from Ellesmere

Land collected by, 299-337, pls. xix- xxiv.

Benthamaspis gen. nov., 325. ~ . p . roblematica sp. nov., 325-6, pl.

X x n . BettyhiU (Sutherland), desilication of

pelitic gneiss of, 404-5, fig., 406-7. bifidus horizon (Ordovician), Greenland,

306-7, 308. Blainiopsis gen. nov., 312-3.

benthami sp. nov., 314-5, pls. xix, xx, 330.

�9 holtedaldi sp. nov., 313-4, pl. xix, 330.

scheii sp. nov., 315-6, pl. xx. ? sp., 316, pl. xx. horizon (Cambrian), Ellesmere

Land, 301, 305, 306, 308, 330. Blue Hill (Maine), 408. BLYTH, F. G. H., 188. Bobownia (Poland), 190. Bolbocephalus glaber, 326. Bolgart (W. Austr.), eulysitic rocks

from, 136-7, fig., 138. Bolton Marine Bed, lxx. Bonniopsis gen. nov., 310.

na~uta sp. nov., 311, pl. xix. rostrata sp. nov., 311-2, pl. xix. horizon (Cambrian), Ellesmere

Land, 301,305, 307, 308. Boolygoo Range (W. Austr.), magnetite-

apatite-grunerite.quartzite from, 132, 133.

Boug~mr anomalies, chart for deter- mining geological corrections to, 218.

Boulder (Montana) batholith, 402-3, fig., 406-7.

Boundary Peak (Inyo Range) batholith, 404, 410-1.

BOWIE & HAY~ORV, their theory of isostasy, 214-6, 231,232.

Brachiopod gen. & sp. indet., 312, pl. xix.

Brander, Pass of (Argyll), Carboniferous of, 67.

Breven dyke (Sweden), alteration of dolerite of, 417-8, fig., 424-5.

Brooking Range (W. Austr.), banded ferruginous chert from, 128 fig.

Bryn-celynog Fault (Merioneth), 19-20. BUCHA~, S., on the geology of opencast

coal in Great Britain, ii-iii. BUC~LA~D, Dean W., his snuff-box

presented, vii.

Builth Wells (Breconahire), 157, 158. BULL, A. J., obit. of F. GOSSLINO, xli--

xlii. BUT.r.ARD, E. C., on gravity anomalies,

246-7. Bullfinch (W. Austr.), banded grunerite-

magnetite-quartzlte of, 127 fig., 131. Bullion Mine marine bed, lxix, lxx. B ~ , O. M. B., on the Cambro-

Ordovician of Ellesmere Land, 337; receives L yell Medal for R. H. RAS- T A L L , XXXII.

Burma & NE. India, geological factors & gravity determination in, 211-49, figs., pl. xv [map].

BuR~,w OIL COMPANY (& ANGLO~ I ~ I A N OIL COMPANY), establish fund for students' tours, i, vii.

BU~aARn'S ' Hidden Range ', 235. Bushveld complex (Transvaal), fels-

pathization of quartzite of, 409-10, 414-5.

BusK, H. G., on the East African Rift System, 382-3.

Bwlch Ardudwy Fault (Harlech Dome), 22.

Byfield (Northants), Walford's sect. in Lias of, 79.

Caerdeon-Bodlyn Fault (Harlech Dome), 18, 21.

Caerdeon Syncline, 18, 21. Calamostachys sp., spores from, 269 fig.,

270, pl. xvii. Cambrian formations, terminology of,

36; C. & 0rdovician fossils from Ellesmere Land, 299-337, pls. x ix- xxiv ; supposed C. foraminifera, 447-60, fig., pls. xxvi-xxviii.

Camel Humps (W. Austr.), 134-5. Camp Hill Quartzite correlated with

Manganese Grit, 27. Cape Albert (Ellesmere Land) & Cape

Camperdown, coast between, 302, 306. Cape Camperdown (Eliesmere Land),

301-2; (& Cape Albert), coast between, 302, 306.

Cape Clay formation (Ordovician), Green- land, 302, 306-7, 308, 331, 332.

Cape Frazer (Ellesmere Land), 304, 307. ~ape Frederik VII formation,' Green-

land, 305. Cape Kent formation (Cambrian), Green.

land, 305, 307, 308. Cape Steven (EUesmere Land), 303, 307. Cape Town, petrology of granite-slate

contacts at, 499-521, figs., pls. xxxv, xxxvi.

Cape Victoria Head (Ellesmere Land), 302, 332.

Cape Weber formation (Ordovician), Greenland, 302 et aqq., 306-7, 308, 332.

Cape Wood formation (Cambrian), Greenland, 301,305-6 et 8qq.

Carbonicola, lxiii & footnote; vert. & horiz, distribn of, lxiv et s~q., lxvi, fig.

p a r t 4] GENERAL

Carboniferous, of E. Poland, 194-5; C. plant spores, 251-98, figs., pls. xvi- xviil; C. System, classification of, xlix-lii; C. palaeogeography, lii-liii, lxix map, Ixxx-lxxxii; Upper C. of N. America, lxxxiv-xe, figs.

Cam Chuinneag Granite, 57. Carneddau Fault, 182 et seq. ' Carpolithus ovoideus,' spores from,

272-4, fig. Cass Fjord formation (Ordovician),

Greenland, 302, 306 et sqq., 332. Catharina marine band, lxxiii, lxxiv,

lxxvi. CAYEUX, L., obit., xxxvii-xxxix. Cayeuxina, 460. Cefn Cam (Merioneth), 8. Cefn Coch Grit (Cambrian), of the

Harlech Dome, 5, 13, 19 et sqq. Cefn Coed Marine Band, lv, lxiii, lxix,

lxx-lxxi, lxxiii, lxxxv. Cefn Dyrys. See Welileld. Cephalapod gen. & sp. indet. (cf. Spyro.

ceras), 324, pl. xxii. Chalk, of E. Poland, 192, 195. Charles Marine Bed, lxx. Chelm (Poland), Chalk at, 195. Cherokee Shale, Missouri, lxxxv. Cheviot granite, parentage of inclusions

in, 424-5, 428-9, fig. Chindwin-Irrawaddy basin, 224, 227,

230. Chlorite, in We]field dolorites, 161, 162. Clackline (W. Austr.), eulysitic rocks

from, 136, 137-8 fig. Clarkoceras sp., 323-4. Clavaspidella limestone (Cambrian),

Greenland, 305. Clavaspidella ? sp., 316. Clay Cross Marine Bed, lxix, lxxii et sqq. Clays, compressibility of, 205-9, fig. Cleavage, in sediments of Harlech Dome,

22-3. Clifton (Cape Town), granitized xenolith

at, pl. xxxv; anal. of aplite below xenolith, 505, 517.

Clogau Shales (Cambrian), of the Har. lech Dome, 3, 5, 13-14, 19, 20 et sqq.

Cnoc nan Cuilean (Sutherland) syenite, 411-3, fig., 414-5, 435.

Coal, opencast, in Great Britain, ii-iii. Coal Measures, formation of, liii-lv;

cyclical nature of C.M. strata, lv- lxii, figs. ; non-marine faunas of, lxii- lxviii, fig.

Coal seams, study of plant spores in relation to, 285-6; wide extent of, liii-]iv.

Coastal Anticline (Harlech Dome), 18. Coed Gerddi Fault (Merioneth), 21. Cole's Find (W. Austr.), magnetite-

grunerite-quartzite of, 128 fig. COLLINS, R. S., 154. Communis Zone, lii; absence of marine

strata in, lxix. Compressional hypothesis of rifting,

362-3, fig.

INDV.X 525

Corinthian (Yilgarn Goldfield), 131 ; bleached jaspilite from, 134.

Cornuspira, 81, 82, 87. Corynepteris sp., spores from, 259, 260

fig., 262, pl. xviii. COTTON, G. (& R. G. S. HUDSON), on

water from the Barber Booth Well, 210.

Council, Annual Report of, vi-x; (& Officers) elected, x.

Cox, A. H., 36, 75. Cox, L. R., 111. Cox, P. T., Lyell Fund awarded to,

xxxv-xxxvi. CRAIG, E. H. C., oil Great Glen Fault,

73-4. Craig Las-eithin Fault (Merioneth), 19,

20; C.L.-e. intrusion, 19, 24. Cretaceous (Upper) structures of E. &

W. Europe, connexion of, 195-6, fig. Cristellaria, 447, 454. Crocidolite, in W. Australian jaspers,

117 ; c.-bearing ironstones of W. Austr. & S. Afr. compared, 117-8.

CROMP~O~, W. (& P. E v e s ) , on geological factors in gravity interpretation, illustrated by evidence from India and Burma, 211-44, figs. pl. xv [map].

CROOXALL, R., on plant spores, 291-2. Cwmgorse (S. Wales), rhythmic deposi-

tion of Coal Measures at, Iv; C. Marine Beds, lxiv, lxix, lxxiv-lxxv, 1XXXV.

Cybelopsis speciosa, 326. ' Cyclothem,' the term, fix. Cystid gen. & sp. indet., 320.

Dalradian, Great Glen fault-line, 47, 50, 51.

Darjeeling (India), gravity anomaly at, 215; gravity profile through, 237-8, fig.

Darling Range (W. Austr.) Metamorphic Belt, 117; metamorphosed banded ironstones of, 135-40, figs. chem. anals.

Dartmoor granite, alteration of associated rocks by, 397-9, figs., 406-7, 410- 11 ; inclusions in, 431-2, 434, 435.

DAvI~s, A. M., 111,458. DAvI~s, K. A., 382. DAvIEs, L. M., 384. DAvis, A. G., 456-7. DE SAussumL H. B., his work on Alpine

geology, xcvii-ci. DEER, W. A., 497. Deltas, gravity anomalies in, 238-9;

see also Bengal Delta &c. Desilication, definition & cause of,

391-2; examples of, in pelitie &c. rocks, 395-7 et sqq.

Devonian, EC. Europe, 194-5. D~.WHUP~T, T., 247-8. ' Dextral ' & ' sinistral ' faults, the

terms, 57. Dhoon granite (I. of Man), inclusions in,

429-30, fig., chem. anals.

526 o E ~

Dicellograptus sextans var. ex///s, 179. Dicranograptus shales, 184. Didymograptus ? sp., 319-20. Differentiation, in rocks of Belhelvie

complex, 488-92. Discospirina, 82. DEWEY, F., on erosion & tectonics in the

East African Rift System, 339-79, figs., pl. xxv [maps], 384-6, 387-8.

Dolerites, of Welfield complex, 158, 160, 161--4; of Welfield Ridge, 164-70, figs.; of R. Wye, 178-82, figs.; alteration of d. by granite magma, 418-9, fig., 424-5.

Dolgelley Gold Belt, 2, 4, 5. Dolwen Grits (Cambrian), of the Har-

lech Dome, 5, 7, 8, 32. Dolwen Pericline, 18 et sqq. Donetz Basin, 192, 195, 198, 199;

rhythmic deposition in Coal Measures of, Ix; non-marine faunas in, lxii et sqq.

Dukinfield Marine Bed, Ixx. Dunan (Sk~e), 410-1, 414-5. Du~mAM, 1~. C., 439. Dunite-serpentine of Belhelvie complex,

469, 474, 475 chem. anal. Dykes, Harlech Dome, 23-4, 25-6;

Permo.Carb. & Permian ds. in relation to Great Glen Fault, 52.

E~RT.~., K. W., obit., xxxix-xl. Earthquakes along Great Glen Fault, 46. East African Rift System, erosion &

tectonics in, 339-88, figs., pl. xxv [maps].

East Murchison Goldfield (W. Austr.). See Brooking Range, Boolygoo Range

Eastern Rift (E. Africa), 342 et sqq., 352 et sqq., 357-60.

Eccyliopterus ? sp. indet., 322. Eehinoid spine from 'Cambrian ' of

Malverns, 448, 450, 451, pl. xxvi, 458, 459.

Edjudina (W. Austr.), chem. anals, of banded ironstones from, 140, 141.

Edward, Lake (E. Africa), 342, 345, 355 et sqq.

Edward Rift (E. Africa), 343, 361. Elgayo scarp (Kenya), 341, 357 et sqq. Elgon, Mr. (Uganda): 353. Ella Island formation (Cambrian),

Greenland, 308. ELLES, G. L., obit. of Dame E. M. R.

SHAX~.SPEA~, xlvi--xlvii; referred to, 158-9, 178 et sqq.

Ellesmere Land (Greenland), Cambro- Ordovician fossils from, 299-337, pls. xix-xxiv.

Elrathia ? sp., 316-7, pl. xx. Elrathiel[a, range of, 306.

obscura, 306. horizon (Cambrian), Greenland, 305

et sqq. Ely greenstone, Minnesota, alteration of,

420-1, fig., 424-5.

n ~ x [vol. eii,

End-stage rocks, Belhelvie complex, 477-84, anals.

Ericht-Laidon Fault, 56, 57, 61. Eritrea, Rift System in, 354-5. Erosion & tectonics in East African Rift

System, 339-88, figs., pl. xxv [maps]. Estheria, ixiii. Esthonia, Lr Palaeozoic of, 192, 193. Estimates (& Accounts), xii-xxviii. Euestheria, lxiii-lxiv. Eulysite, the term, 147-8. Eulysites & eulysitic rocks of W. Austr.,

117, 131-2, fig., 135-40, figs., 147-9. Europe, geol. relation between E. & W.,

195-9, maps; Coal Measures of parts of, lxxviii-lxxxiv, figs,

E v e s , P., 497; (& W. CROMPTON), on geological factors in gravity inter. pretation, illustrated by evidence from India and Burma, 211-44, figs. pl. xv [map], 249.

EvANs, W. D., on the Welfield intrusion, 187-8.

Eyasi, Lake (E. Africa), 342, 350, 359 e~ sqg. ; E. basin, 349; E. scarp, 346.

Falmouth granite, 399-401, figs., 406-7. Fault-line scarps (----so-called fault.

scarps), E. African Rift System, 341. Fault-scarps (so-called), East African

Rift System, 341. Fault-trough, defined, 340-1. Faulting, dynamics of, 67-71, maps. Faults, Harlech Dome, 18-22 ; of Great

Glen, 41-76, figs. pl. iii; NE. fault system of Highlands, 55-7, map; fs, of Welfield area, 164, 180, 182; post- Karroo & Rift fs. compared, 347.

Fayalite, in eulysites of W. Austr., 131-2, fig.

FE~aNS~D~.S, W. G., on Great Glen Fault, 75; on the Harlech Dome, 37-9 ; receives Lyell Award for W. PULF~EY, XXXV.

Fellows elected, i, ii, iii, iv, xciv, xcv; deceased, resigned &c., list of, x-xi; names read out, i, xcv.

Felspar grains in banded Belhelvie rocks, parallelism of, 487-8, fig.

Felspars, 'c louding ' in, 435-6. Felspathiz~_tion of Cape Town granite,

513-4. FERMOR, L. L., 521; on manganese-ore

deposits of India &c., 40; obit. of S. H-ESLOP, xliii.

Ferruginous jasper bars, W. Austr., 119-22, map ; metamorphosed, 124- 34, figs. maps.

Ffestiniog Flags of the Harlech Dome, 3 et sqq.

Flamanville (Normandy), granitlzation processes at, 393-7, figs., 406-7, 410-11, 434, 435.

Floras, sequence in Coal Measures, lxxv-lxxvii.

Fluorite, in bleached jaspilite from Corinthian, 134.

p&r~ 4] GENERAL

Feel Ddu (Merioneth), 10, 18. Feel Wen (Merionethl, 10. Folding, post-Silurian, formation of

Welfield Ridge by, 171-3, fig. Folds, Harlech Dome, 18. Foraminifera, variation study in, 94-102,

figs. ; proterogenesis or recapitulation in, 103-6, figs.; GRooM's supposed Cambrian fi, 447-60, fig., pls. xxvi - .,. XXVlll.

Foreign Members elected, iii. Fossil, undetermined, from Ordovieian

of Ellesmere Land, 330, pls. xxiii, xxiv.

Foyers Granite, 47, 51 et sqq. ; & Stron- t ian Granite, as evidence of displace- ment of Great Glen Fault, 60, 61, 62-3, map.

' Gal,' the term, 213. Gamlan Flags & Grits (Cambrian) of the

Harlech Dome, 5, 11-3, sect., 18, 20 et sqq.

Gardiner River (Wyoming), rhyolitiza- t ion of basalt at, 423, 424-5, 426, fig.

Garnetiferous rocks of the Harlech Dome, petrology of, 33.

GA~WOOD, E. J., obit. of Mrs. E M ~ BENSON, xxxix; of K. W. EAt~E, xxxix--xl ; of Dame M. M. O. GORDON, xl-xli ; of CATm~BINE RAISIn, xliv--xlv.

Gastropod horizon (0rtlovicianl, Green- land, 302, 303, 308.

Geochemical changes leading to granitization, sequence of, 389-443, figs.

' Geochemical culmination ' & ' g. de- pression ', the terms, 392.

Geological factors in gravity interpretation, 211-49, figs. pl. xv [map].

Geologists, work of, in invasion of NW. Europe, v.

Geology, aerial photography &, vii. Giant 's Range (Minnesota) batholith,

403-4, fig., 406-7. GILBERT, G. K. , referred to, 173-4,

175. Gin Mine Marine Band, lv-lvi, lxviii

et sqq. Glacial map of N. America exhib., xev. Glasdmlmman Port (Co. Down), basi-

fication of basalt at, 419-20, 424-5. Glaueophane, in banded ironstone of

Tuckanarra, 132, 133. Glen More (Scotland), 42, 45 et sqq. Glossopleura of. expansa, 317-8, pl. xx.

longifrons, 318. walcotti, 318. horizon (Cambrian), Ellesmere

Land, 301, 305, 306, 308. Glyn Valley Fault (Merioneth), 21. ' Glyptarca primaeva Hicks ' of Groom

1902, 448, 449, 450-1, pl. xxvi. Glyptograptus teretiusculus, 179; G.t. zone,

I59, 179. Goethite, in jasper bars of W. Austr.,

119. Q.J.G.S. No. 408.

INDEX 527

Golden Valley (W. Austr.), banded actinolitic quartzite of, 127 fig.

Gondite of India & W. Africa, 40. Goniotelus, 326.

baggildi, 327. crassicornis, 327. sp. indet., 327, pl. xxii.

GOODCHILD, $. H. , 154. GoRDon, Dame M. M. O., obit., xl-xli. GossLINO, F., obit., xli-xlii. Granite, Cape Peninsula, 500, 502, 504,

pl. xxxvi; intrusion of, 509-10; differentiation of, 510-11, fig.; fels- pathization of, 513-4; optical &c. data, 516; chem. anals., 517; later gs. of Belhelvie district, 492-3.

' Granitization,' the term, 392. Granitization, sequence of geochemical

changes leading to, 389-443, figs. Granitized banded ironstones, W. Austr.,

133-4. Gravity variation, nomenclature of,

213-4; g. readings in Burma & NE. India, 224-31; B anomalies in the same, 225 fig. ; C anomalies in the same, 226 fig. ; geologically corrected anomalies in the same, 227 fig., 228-9 fig., 231 fig., 232-4, fig. ; causes of major anomalies, 234-8, figs.; causes of minor anomalies, 239-40; g. profiles produced by masses of different shape, 235-8, figs.

Great Britain, opencast coal in, ii-iii. Great Glen Fault (Scotland), 41-76, figs.,

pl. iii [maps]. Great Rift Valley. See East African

Rift System. Greenhills (W. Au~tr.), eulysitic rocks

from, 138 fig., 139-40. Greenland, correlation of Palaeozoic

with N. American equivalents, 307; alteration of limestone in, 416; see also Ellesmere Land.

Greenstone dyke, I. of Man, & g. inclusions in a~)hoon granite, 429, 430, chem. anals.

GRIFFITE, G. T., obit., xlii-xliii. Grinnell Land (Greenland), Cambro-

Ordovician fossils from, 300 et sqq. Griquatown Series in Griqualand West,

crocidolite-bearing ironstones of, 117-8. GRooM, T. T., his supposed Cambrian

foraminifera from the Malverns, 447- 60, fig., pls. xxvi-xxviii .

GROVES, A. W., 74. Grunerite, in quartzites of W. Austr.,

124, 125-7 et sqq. ; in eulysitic rocks of W. Austr., 136 fig., 137-8, 148 et sqq.; g.-bearing jasper bars from Southern Cross, chem. anals, of, 140, 142.

Gwern-yfed-fach (Radnorshire), 158, 180 ; dolerite sills near, 162-3, 164; G.-y.-f. Fault , 182 et sqq.

Haemati te , in banded ironstones of W. Austr., 119-20 et sqq. ; chert &

NN

528 o ~ ~ n ~ . x [vol. cii,

h.-quartzites of W. Austr., chem. anals, of, 139, 141; see al~o Jasper bars.

Haflong (Assam), 224, 247; geologically corrected anomalies NE. of, 230-1, fig. ; gravity profile near, 240 fig.

Hafotty Shales. See Manganese Group. Haliburton-Bancroft area (Ontario),

granite-limestone contact in, 414-6. ~[AT.T.TMOND, ~k. F . , 154; obit. of W.

FOTX.ARD, xliii; of E. G. RADLEY, xliii-xliv.

}~rlech ]Dome (Wales), geology of, 1-4o, figs. pts. i & ~.

W_arlech Grits, 9; petrology of, 30-2. Harmsworth Bay (Ellesmere Land),

302-3. Harper's Quarry (Radnorshire), 158. HARmso~, J. V., 75. Hartshill Quartzite correlated with

Rhinog Grits, 27. Hauerinella, 81, 86-7.

inconstans, 81, 85-6, pl. iv. - - m a r g a r i t i f e r a , pl. iv. Hawzass, L., receives Murchison Medal,

m i - - x x x i i , HAwxx~, H. L., 458. Hayes Point (Ellesmere Land), 303-4,

307. HA~To~v & Bow~, their theory of

isostasy, 214-6, 231,232. Hcaney's Find (W. Austr.), n~agnetite-

grunerite-quartzite of, 128 fig., 130 map, 131, 132 ; granitized banded ironstone at, 133-4.

Hedeabergite-bearing j aspilite,W. Austr., 129 fig., 131.

Heerlen classificatiofi of Upper Car- boniferous correlated with lamellibranch zones, li.

H~XM, ALB~.~% his Oeologie der ~chwelz, civ, cvii-cxii.

Helicotoma ? sp. indef., 323, pl. xxii. Henga-Kasangadzi surface, Nyasaland,

344 fig., 345 fig. Hercynian front in W. Europe, direction

of, 69 map, 70-1. HESLOP, S., obit., xliii. HIC~T.rSo, G., on plant spores, 295-6. Highland Schists, Belhelvie, 466-7. HOT.T.A~, T. H., on gravity interpre-

tation, 244-6. HOLLn~QWORTH, S. E., 75; (& others),

on large-scale superficial structures in the Northampton Ironstone Field, 204-5.

HoTmr~.s, A., 440. Homoceratoides ~ a c ~ i , ITx'xw. Horbury Rock, thickness variations in

relation to Warren House Coa~, lviii, ag.

Hormotoma ? sp. indef., 323. HOraCE, J. (& B. P~-ACH), quoted, 59. Hornfelsed Malmesbury sediments, Cape

Town, 506, pl. xxxvi; optics &c. of, 516; chem. anals, of, 517.

Hornfelses, Cape Town, 506, pl. xxxvi;

impregnation of, 511 ; basification of, 514-5; optical &c. data, 516; chem. anals., 517.

HuDson, R. G. S. (& G. COTTON), On water from the Barber Booth Well, 210.

Hyolithes (Hgolithes) sp., 309, pl. xix. Hypersthene.magnetite rock from Green-

hills, 138 fig., 139; h.-gabbros, Bel- helvie complex, 472-3, 476; chem. anals, of, 474-5, 482, pl. xxxi.

HyatT~icurus a~n~s ep. nov., 331-2, pl. ... 3['~CIII, c~,~imbatu~, 327, pl. xxii.

Igneous rocks of the Harlech Dome, 23-6; of the Great Glen fault-line, 52; associated with granite, metasomatic alteration of, 417-26, figs.

Ilmenite, in Welfield dolerites, 162. India (NE.) & Burma, geological factors

& gravity determination in, 211-49, figs. pl. xv [map].

Indus Delta, 239. Injection co.mplexes of Moine Series,

Great Glen Fault &, 57-8. Tvnlnmoro (Argyll), Carboniferous at,

67. Inverness (Scotland), 45, 46. Iringa (Tanganyika Terr.), 348, 349. Ironstones, banded, from W. Austr.,

chem. anals., 140, 141; ace a / so Jasper bars.

Irrawaddy Delta, 238, 239. Isooh~ina perporosa, 329.

�9 " 329-30. Isostasy, hypotheses of Amy & PRAy,

214-6, fig. ; in India, 231-4, fig. ] 8 o ~ ? ~po~ar/a, 327, p]. xxili.

Jasper bars of W. Austr., 116-8; field occurrence of, 118; petrography of, 118-40, figs. ; chemical composition of, 140-2, chem. anals. ; genesis of, 143-7 ; metamorphism of, 147-51.

Jaspilite, contorted, North Coolgardie Goldfield, 119, pl. xi; composition of, 120-1 ; see a/so Jasper bars.

J o ~ s , O. T., 74; on the compaction of �9 muddy sediments, 209-10; (& W. J. PuoH), on the complex intrusion of Welfield, near Builth Wells, Radnor- shire, 157-87, figs., pl. xiii (geol. map), 188.

Junior Associates admitted, i, ii, iii, iv, xciv, xcv; list of, xi.

Jurassic of E. Poland, 195; late J. peneplain of E. Africa, 368-75.

]~l~Amega scarp (Kenya), 341, 357-8. Karroo, E. Africa, 341 et s~/.; K.

troughs & basins, post-Tertiary rifts &, 365-8.

Kavirondo Gulf (Kenya), 341, 353, 359; K. scarp, 341.

"R'~T.T,AWA.Y, G. A. See HOT.T.TWG.- WORTH, S. E.

part 4] GENERAL INDEX 529

KENNEDY, W. Q., on the Great Glen Fault, 41-72, figs. pl. iii, 75-6.

Kenya Rift, 342, 348, 351; theories of formation of, 362-5, figs.

Killarney area (Ontario), quartzite meta- somatically altered, 410, 414-5.

Kr~o, W. B. R., 336. Kitale plateau (Kenya), 341, 357 et sqq. Kivu, Lake & basin (E. Africa), 342,

345 et sqq. Kloof Quarry (Cape Town), 500, 501,

504 et sqq. KNox, J., on plant spores, 296-7. Kochina arctics sp. nov., 318-9, pl. xx. Koolyanobbing Range (W. Austr.),

magnetite-grunerite-schist of, 128, 129. Korong District (W. Austr.), 134-5, geol.

map. Kundulungu plateaux (Belgian Congo),

365. Kungwe (Tanganyika Territory), 346,

349.

Laccolith of Welfield Ridge, 173-8, figs. ; 186-7 fig.

Lagena, 447, 452, 453 et sqq. Lake Austin (W. Austr.), chem. anal. of

banded jaspilite from, 141. Lake Superior (N. Am.) region, iron-

carbonate rocks of compared with banded iron formations of W. Austr., 117, 119, 121, 122.

Lamellibranch faunas, non-marine, of Coal Measures, lxii-lxviii, fig.

Lamellibranch zones of Upper Carboni- ferous correlated with Heerlen classification, li; marine bands in, lxix.

LAPWOR~, C., referred to, 1-2, 5, 159, 178, 179.

Laurentia, lxxxv, Ixxxvi fig. Laverton (W. Austr.), banded grunerite-

magnetite-chert from, 127 fig., 129. LEES, G. M., 201, 383; receives Lyell

Fund for P. T. Cox, xxxv. Lenisuleata Zone, Anthraconaia fauna

of recognized in Belgium &e., lxv; marine beds of, lxix.

Lennoxian Series, compared with Cam- brian of Merioneth, 39.

Lepidostrobus comosus, spores from, 261 fig., 262, pl. xviii.

cfi ornatus, spores from, 264, 265 fig., pl. xvii.

? spinosus, spores from, 261 fig., 263, pl. xviii.

cf. squarrosus, spores from, 265 fig., 266, pl. xviii.

variabilis, spores from, 266, 267 fig., pl. xviii.

sp., spores from, 264, 265 fig., 266, pl. xviii.

Leptites, of Orij~rvi, 406-7, 408, fig.; of Ryddarhyttan, 408.

LEWIS, H. P., obit. of G. T. GRIY~rrH, xlii-xli~.

Lias clay, fundamental strength of, & effect on superficial structures, 203-5.

Liassic (or Rhaetie) age of Malvern foraminifera, 450-3.

Library Committee, report of, ix-x. Lids (Poland) granitic block, 190, 192. Limestone associated with granite, meta-

somatic alteration of, 392, 413-6. Lirnnic coal basins, lii et sqq. ; of N.

Europe, lxxxfi-lxxxiv, fig. Limonite, in jasper bars of W. Austr.,

119. Lingula , Iv, lxiii, ]xv, lxviii, lxix. Lingula Flags, of the Harlech Dome, 3,

14; the name, 36 ; see also Maentwrog Flags & Ffestiniog Flags.

Lingulella davisi, 16. Linnhe, Loch (Scotland), 45 et sqq.

map of, showing relation of pre. Carboniferous valley to Great Glen Fault, 65.

Lithuanian basin, post-Devonian in, 195. Livingstone Mtns. (E. Aft.), 346 et sqq. Llanaber (Merioneth), 7 ; sect. to

Mawddach estuary, 9; sect. to Beddo y-Coedwr, 17.

Llanbedr (Merioneth), 4 et sqq. Llanbedr Slates (Cambrian), of the Har-

lech Dome, 5 et 8qq. Llanfair (Merioneth), 7, 8, 10. Llanfihangel-y-Traethau (Merioneth), 18,

21; sect. to Moel Oernant, 17. Loch Skerrols Thrust, 63 et seq. Loch Tay Fault, 55 et sqq. Lochy, Loch (Scotland), pegmatite in

foliated sandstones of, 45, 51, 52. Lodes, Harlech Dome, 26-7. Luangwa trough (Africa), 343-6; sect.

across, 345 fig. ; L. Valley, 341, 343, 347.

LYEI~ M~.D~ awarded to R. H. RAS- T~L, XXXii--xxxiv; L. FUND presented to W. PtrLFR~y, XXXV; to P. T. Cox, xxxv-xxxvi.

I~IAcFADYE~, W. A., 459; on OphthaI. m i d i u m , 112.

Macluri tes sp. indet., 323, pl. xxii. Maentwrog Flags of the Harlech Dome,

5, 14-6. Magadi, Lake (E. Africa), 342. Magnetite, in banded ironstone of W.

Austr., 119, 121, 122; m.-quartzites of W. Austr., 121, 122 micr. sect., 124-30, figs., map, 131-2, 136 fig., 137 et sqq.

Magnetny (Siberia), alteration of andesite at, 421, fig., 424-5.

Maharan Sandstones, E. Africa, 358-9. Malmesbury Series, Cape Town, 500,

501-2 et sqq. ; xenoliths of, in Cape granite, 501,504; sediments of, 506-7, pl. xxxvi.

Malombe, Lake (E. Africa), 342. Malvern Hills, supposed Cambrian fora-

minifera from, 447-60, fig., pls. xxvi- . . .

X X V l l l .

Manganese, in Lower Cambrian of Newfoundland, 27.

530 a E m g R ~ IND~.X [vol . cii,

Manganese Grit of the Harlech Dome, 5, 9, 10; correlated with Camp Hill Quartzite, 27.

Manganese Group (Cambrian), of the Harlech Dome, 5, 6, 9-11, 20, 32.

Manganese Ore Bed, 9, 10, 20, 27, 30; petrology of, 32-3.

Mansfield Marine Band, Iv, lxiv, lxviii et sqq., Ixxxv.

Manx slate, chem. anals, of, 429. Manyara, Lake (E. Africa), 342, 350, 359. M~RoERr~, E. D~., receives Wollaston

Medal, xxix-xxxi; obit. of L. CAY- ~.ux, xxxvii-xxxix; on three stages in the evolution of Alpine geology: D~. SAVSSUB~.-STUD~B-HEru, xcvii- CXiV.

Marginulina, 447 et sqq. soluta (~), 451-2, pL xxviii.

Marine bands in Coal Measures succes- sion, lv-lvi, lxviii-lxxv.

Marmorkap (Siberia), alteration of andesite at, 421, fig., 424-5.

Marshall Bay formation (Cambrian), Greenland, 305, 308.

Martite.quartzite, Mt. Wilga, 121-2. Massilina, 82, 83. MaTm~, M. (& F. W A L ~ ) , on the

petrology of two granite-slate contacts at Cape Town, South Africa, 499-518, figs., pls. xxxv, xx~vi.

M A ~ Y , C. A. (& T. S. WILSON), on the Harlech Dome, north of the Bar. mouth estuary, 1-35, figs. pls. i & ii, 39-40.

Maudlin Seam, lix. Mawddach estuary (Merioneth), sect. to

Llanaber, 9; M. Valley, 16. Mbaya (E. Afr.), 346, 349. McLn~TOC~, W. F. P., 248. Medals (& Funds), awards announced,

iv ; presented, xx ix -x~v i . Meier's Find (Mr. Palmer), 124, 125 map,

129, 131. ME~-ESZ, F. A. V~.~rn~G, referred to,

215-6, 230, 232, 235, 242. Mekong Delta, gravity anomalies in, 239. _Mesograptus multidens zone, 184. Metamorphic zones of Highlands, Great

Glen & related faults &, 56-7, 58-61, map.

Metamorphism of jasper bars of W. Australia, 147-51 ; of Belhelvie rocks, 493-5, fig.

Metamorphosed ferruginous jasper bars, 124-34, figs. maps.

Microcline porphyroblast in pegmatite of Bantry Bay, 505-6; chem. anal. of, 517.

Microconchus, the name, l~iil. Migmatites, Sutherland, 404-5, fig.,

406-7; of Cape Town, 500 et sqq., 507-8, 513-4, 516; chem. anals. 517.

Migmatization, in Cape Town rocks, 502, 511-3, fig.

Mikaszewicze (Poland), 190. MILES, k . R., on the metamorphism of

the jasper bars of Western Australia, 115-54, figs., pls. xi & xii.

Miliolidae, proterogenetic evolution in, 103-4, fig.

' Milli~ml,' the term, 213. Mw.T.O~, J. O'N., on plant spores, 294-5. Minnesota, alteration of Ely greenstone

in, 420-1, fig., 424-5. Miocene peneplain, E. Africa, 348,

351-2, 353-4, 356, 358 e~ s~/. M~a~5"ppi Delta, 239. Mississippian & Pennsylvanian, division

of Carboniferous into, xlix-l. Mlanje Mts. (Nyasaland), 357. MochragI. (Merioneth), 4, 6. Modiola minima, 450-1, pl. xxvi. Modiolaris Zone, Anthracosla & Lingula

in, ixlll; marine bands of, lxix, lxxii- l~iv.

Moel Goedog East & West Faults (Merioneth), 21.

Moelfre Fault (Merioneth), 20, 21. Mohorovi~id discontinuity, 234. Moine Schists, of the Great Glen fault-

line, 47, 50, 51 ; metamorphic zones of, 57-61, map.

Moine Thrust-plane, Great Glen dislo- cation &, 48, 49, maps, 63-4.

Mona Complex rocks on Sam Badrig, 6. Moor of Rannoch Granite, 57. M o o n , L. R., on the spores of some

CarbOniferous plants; their development, 251-90, figs., pls. xvi-xvifi, 297-8.

Morfa Dyffryn & Morfa Harlech (Mer- ioneth), Quaternary platform at, 3.

Morganian (Upper Westphallan), Ii e~ sq~/. MORRIS, F. M., on plant spores, 292-3. Mosquito Creek Series, W. Australia, 116. Mr. Margaret Goldfield (W. Austr.), 117,

119, 121, 134, 135 map; see a~so Laverton d~ Korong.

Mr. Palmer (W. Austr.), ferruginous metamorphosed jasper bars of, 124-7, map, fig., 128 fig., 130 map, 131-4, ~g.

Mr. Richardson (W. Austr.), banded ferruginous chert from, 128 fig.

Mr. Wilga (W. Austr.), banded ironstones of, 120 map, 121, 123.

Mt. Windarra (W. Austr.), 126 map, magnetite-grunerite-cluartzites of, 127-8.

Muddy sediments, compaction of, 209- 10.

Mudstones, of the Harlech Dome, petrology of, 32.

Mull, I. of, 43, 47; 59, 63; map of, showing position of Great Glen Fault below Tertiary lavas, 65.

Mundurno (Aberdeenshire), quartz-biotite-norite of, 484-5.

MuncHies , R. I., letters &c. of, presented, vii.

Murchison Goldfield (W. Austr.). See Tuckanarra.

MURCmSON MEDAL presented to L.

pa r t 4] GENERAL

HAWXES, XXXl--XXXii; M. FUND presented to A. WooD, xxxiv-xxxv.

Murch@onia(?), 448, 450, 451. Mylonite, formation along dislocations,

55. Mzimba surface, Nyasaland-N. Rhodesia,

344 fig., 345 fig.

Naiadites, the name, lxiii footnote; cert. & horiz, distribn of, lxiv et sqq., lxvi fig.

Namurian, of E. Poland, 195; position in Carboniferous, l, li.

Nandi scarp (Kenya), 341. Nannine (W. Austr.), chem. anal. of

banded haematite-quartzite from, 141. Natron, Lake (E. Africa), 342, 350, 359. Nemagraptus gracilis, 179, 180; N.g.

zone, 159, 179, 180, 184, 185. Neptun marine band, lxxi, lxxxi. l~ess, Loch (Scotland), 45 footnote, 46

et sqq. Netherlands East Indies, gravity observa-

tions in, 215-6, 230, 232, 235, 238, 241, 242.

Nevoria (W. Austr.), 128. Newry complex (Ireland), granitization

processes in rocks of, 401-2, figs., 406-7, 410-1, 435.

Ngorongoro (Tanganyika), 359. Nile, alined along strike of ancient

structures, 342 ;~ N. Delta, 239. N ~ b e brevicauda, 332, pl. xxiii. N4veau mat in de Rimbert, lxxi, Ixxvi. Nodosaria, 447, 451 et sqq. Nord coalfield, Upper Carb. of comp. w.

that of Saar, Ixxxiii fig. Norite of Tr4gastel-Ploumanae'h, granit-

ization of, 422-3, fig., 424-5, 430-1; of Belhelvie complex, 472-6, 484-5.

Northern Rift Zone, E. Africa, 353-65, figs.

Nubecularia, 82; ' N ' of N. tibia type, in proterogenetic evolution, 103 fig., 104.

Nullagine Formation, W. Australia, 116, 117.

Nunatami formation (Ordovician), Greenland, 303, 304, 306-7, 308, 332.

Nuneaton Marine Bed, lxx. NUTTAT~T., W. L. F., 110-1. Nyasa, Lake (E. Aft.), 341 et sqq., 348

et sqq. ; Cretaceous coastal peneplain of, 344 fig., 345 fig.

Nyasa Rift, 340, 342, 343-6, figs., 347, 351 et sqq. ; sect. across, 345 fig.

Nyika plateau (Nyasaland), late Jurassic peneplain of, 344 fig., 345 fig.

' Obolella(?) Salteri ? ' of Groom 1902, 448, 449, 450, pl. xxvi.

Oculina, 80. ~ l i a s i c a , 80. OD~TX., N. E., on granitization, 441-2. Officers (& Council) elected, x. Old Red Sandstone of the Great Glen,

45, 50 et sqq.

~DEX 531

Older Greenstone Series, W. Australia, 116, 117; anals, of jasper bars from, 139.

Olenellid fragment, 310, pl. xix. Olenoides ? fallax sp. nov., 319, pl. xx. Olivine, in ultrabasic rocks of Belhelvie,

467-8. Olivine-gabbros, Belhelvie complex, 467

et sqq., 474-5 anals., 476-7, 480-1 anals., 482, pls. xxxi, xxxii, xxxiii.

Opencast coal in Great Britain, ii-iii. Ophthalmidium, nomenclature, varia-

tion & evolution in, 77-113, figs., pls. iv-x; type specimen of, 461-3, pls. xxix, xxx.

carinatum, 462-3, pls. xxix, xxx. - - l i a s i c u m , 80, 81, 84-5, fig., 113,

461-2, pls. xxix, xxx. macfadyeni sp. nov., 92-3, 101-2,

pl. ix. northamptonensis sp. nov., 88-90,

95-101, figs., 104-6, 462, pls. v-viii, XXiX.

- - nubeculariformis, 90-I, figs. porosum, 81. tumidulum, 81.

- - w a l f o r d i , 82, 91-2, fig. - - o f O. walfordi type, in protero-

genetic evolution, 103 fig., 104. Ordovician, of Builth area, 157 et sqq. ;

O. & Cambrian fossils from Ellesmere Land, 299-337, pls. xix-xxiv.

Ore-bed Shales (Manganese Group), of the Harlech Dome, 5, 9-10, 20, 21.

Orijarvi area (Finland), desilication of leptites in, 406-7, 408, fig., 435.

Orthoceras limestone, Ellesmere Land, 331.

Ostracod horizon (Ordovician), Green- land, 303, 308.

Ottweiler Beds, lxxxiii. Ovalis Zone, lii. Overseal Marine Bed, Ixx. OvEY, C. D., on supposed Cambrian

foraminifera, 457-8, 459-60. Ovruch sandstones, Poland, 191. Oxford University Ellesmere Land Ex-

pedition, Cambro-Ordovician fossils collected by, 299-337, pls. xix-xxiv.

Paedeumias ? borealis sp. nov., 309-10, pl. xix.

Palaeostachya sp., spores from, 269 fig., 270-1.

Palaeozoic (Lr), of E. Poland & W. Russia, 192-4.

Pangani Valley (Tanganyika), 348, 351, 359 et sqq.

Paralie coal basins, lii et sqq.; of N. Europe, lxxviii-lxxxii, fig.

Parallelism of felspar grains in banded Belhelvie rocks, 487-8, fig.

Parker's Range (W. Austr.), 128. PEACH, B. (& J. HORNE), quoted, 59. Pegrnatite in granite of Cape Town,

505-6; chem. anal., 517. Pelitic (& semi-pelitic) rocks, recta-

532 GENERAL INDEX [vol. cii,

somatic alteration of by granite ' magma ', 391-2, 393-409, figs.

Pemmican River formation, Greenland, 306.

Pen-ddol Rocks (Radnorshire), 158, 159, 163.

Peneplains of E. Africa, .Miocene, 348, 351-2, 353-4, 356 et sqq. ; late Juras- sic, 368-75.

Peneroplis, 82. Penmaenau Rocks (Radnorshire), 163

et sqq.; sect. across, 169, 170 fig., 176 fig., 177.

Pennsylvanian, cyclic deposition of, lvii fig., lix-lx; P. of 1~. America, lxxxiv-xc, figs; division of Carbon- iferous into P. & Mississippian, xlix-1.

Penrhos Shales (Cambrian), of the Har- leeh Dome, 3, 5, 15-16, 21.

Peridotite, Belhelvie complex, 469-70, 470-1.

Petigurus sp., 327-8, pl. xxiii. Petit Buisson band, lxxi, lxxv, lxxvi. Phacolith, Welfield Ridge as, 173. PKEMISTE~, J., 248-9, 74-5 PhyUograptus sp., 320. Plagioelase, in Welfield dolerites, 161

et sqq. Plants, Carboniferous, spores of, 251-98,

figs. p~.. x~-xv~i . Pliocene erosion surface, E. Africa, 350,

353, 355, 359, 361 et sqq. Pliamerops sp., 328, pl. xxiii. Podolia, Lr Palaeozoic of, 192, 193;

Devonian of, 194. ido/sson/~re marine band, lxxiii, Ixxvi. Poland (E.), & W. Russia, structure of,

189-201, figs., pl. xiv [maps]. Polesie Groups, Poland, 191. Police Post (Bache Peninsula), 300-1,305. POT.r.AV~D, W., obit., xliii. Polytoecia borealis sp. nov., 320-1, pls.

xx, xxi. muIticamerata sp. nov., 321-2, pls.

xxi, xxii. horizon, Ellesmere Land, 303.

Pomatotrema semiconvexum, 322. Portronan (Co. Donegal), felsPathized

quartzite of, 411, 414-5. Potash enrichment of Cape Town granite,

513-4. POULS~.~, C., notes on Cambro-Ordo-

vician fossils collected by the Oxford University Ellesmere Land Expedi- tion 1934-5, 299-335, pls. xix-xxiv.

I>~TT hypothesis of isostasy, 214-6, fig., 231.

Pre-Cambrian, of E. Poland & W. Russia, 190-2; P.-C. basement of the Har- lech Dome, 6-7; P.-C. banded ironstones, 145.

Prehnite, in Welfield dolerites, 162. P~n~oL~, J., 39. Pripet Marshes, 193, 194; granitic block

under, 190, 192. ' Proterogenesis ', the theory, 77-8 ; in

the Foraminifera, 103-6, figs.

PRUVOST, P., referred to, liii, lvii fig., lix.

Psammitic rocks associated with granite, metasomatic alteration of, 392, 409- 13, fig.

Ptychocarpus uni~us, spores from, 256, 257 fig., 258.

Puo~, W. J. (& O. T. Jo~-~s), on the complex intrusion of Weliield, near Builth Wells, Radnorshire, 157-87, figs., pl. xiii (geol. map).

P~LFREr, W., on East African Rift System, 387; Lyell Fund awarded to, r x : ~ v .

Pyroxene in meta-jaspilite of Yilgarn Goldfield, 131 ; ps. in ultrabasie rocks of Belhelvie, 468, 469 et aqq., pl.

Pyroxenite, Belhelvie complex, 469, 470, 474, 475, chem. anal.

Quaregnon marine band, lxxlii. Quartz-biotite-norite of Mundurno, 484-

5, pl. xxxi. Quartz veins, ttarlech Dome, 26-7. Quartzite, Bushveld complex, felspath-

ization of, 409-10. Qu6rigut-Mfllas (Pyrenees), alteration of

limestone at, 416. Quinns (W. Austr.), chem. anal. of

haematite-quartzite from, 141. Q u i r ~ c u l i , a , 82.

Radley, E. O., obit., xliii-xliv. Radstockian, li. RAxsn% CATm~Rnr~, obit., xliv-xlv. R ~ x ~ , A. O., 247. Raphistomena latiumbilicata, 323. Rapikivi granite, Poland, 191. RAST~, R. H., Lyell Medal awarded

to, ~xi i -xxxiv . Ravanieze (W. Russia), 193, 194. RAw, F., 37. READ, H. H., 73, 496-7; on the gee.

chemistry of granitization, 438 ; reads paper by F. WAr.~a & M. MATHIaS, 499 ; discusses same, 520-1.

' Recapitulation,' the theory, 78, 83; in the Foraminifera, 103-6, figs.

Red River (Tongking) delta, 239. RF~D, F. R. C., obit., xlv-xlvi. Re~phax, 457. REY~OLOS, D. L., on the sequence of

geochemical changes leading to granitization, 389-438, figs., 440-1,442-3.

Rhaetic (or Lr Liassic) age of Malvern foraminifera, 450-3.

Rhinog Fawr (Merioneth), 3, 4, 9. Rhinog Grits (Cambrian), of the Harlech

Dome, 3, 5 et sqq. ; correlated with Hartshill Quartzite, 27.

Rhizophora, liv. Riddarhyttan (Sweden), desilication of

leptites at, 408. Riebeckite, in W. Australian jaspers, 117. ' Rift,' defined, 340-1. Rift System of East Africa, erosion &

part 4] GENERAL

tectonics in, 339-88, figs., pl. xxv [maps].

Rifting, theories of, 360-5, figs. Rifts, post-Tertiary, Karroo troughs &

basins &, 365-8. Ringers, in ' Lingula Flags ', 3 ; in Vigra

Flags, 14-5; uncleared, 22; petrology of, 32 ; source of materials of, 34.

Rock densities at surface & depth, measurement of, 219-20.

Ruaha trough (E. Afr.), 346, 348 et sqq. ; R. scarp, 346.

Ruanda (Tanganyika Terr.), 348, 356. Ruarwe fault, Nyasa, 345 fig., 352. Ruchuru basin (E. Aft.), 345, 362. Rudha na h-Earba (Loch Linnhe), 51,

67. Rudolf, Lake (E. Afr.), 341, 342, 353,

354, 358 et sqq. Rukwa, Lake (E. Afr.), 342, 349, 355;

R. Rift, 342 et eqq. Rungwe (E. Afr.), 346, 350. Russia (W.), & E. Poland, structure of,

189-201, figs., pI. xiv [maps]. Ruwenzori (Uganda), 342, 346, 355,

356-7, 361, 363, 365, 366-7.

Saar Basin, lxxxii, lxxxiv; Upper Carb. of compared with that of Nord coalfield, lxxxiii fig.

Saarbruck Beds, lxxxiii. San Andreas (California) fault-zone,

Great Glen Fault compared with, 45, 54, 55.

SA~DFORD, K. S., 336, 383-4, 458. Sao Hill (Tanganyika Terr.), 348, 349. Sam Badrig (Merioneth), 4, 6-7. SCH~I, P~.~, his Cambro-Ordovician fos-

sils from Bathe Peninsula, 300 et sqq., 330-2, pl. xxiii.

Scoresby Bay (Greenland), 304, 307. Sea Point (Cape Town), 500 et sqq.;

map of contact at, 503. SEDGWXCK, A., referred to, 4. Sedimentary rocks, effect on gravity,

216-7, 218-9. Sedimentary theory of genesis of jasper

bars, 143-5. Sediments, muddy, compaction of, 209-

10. Serniiki Valley (E. Aft.), 361 et 8qq. Senftenbergla [ Dactylotheca ] plumosa,

spores from, 256, 257 fig., pl. xvii. Serpentine, Belhelvie, 469 ct sqq. Serpentinization of rocks of Belhelvie

complex, 479. SHACKL~.TO~, R. M., 497-8, 520; on

the Rift System in Kenya, 381-2. SH~Lg_ESP~.AR, Dame E. M. R., obit.,

xlvi-xlvii. Shan Plateau (Burma), 222, 223 fig., 224. Shap granite, granitization of audesitie

inclusions in, 421-2, fig., 424-5. Shear, mechanical interpretation of

Gleat Glen, 68, 69 map. Shear-zone theory of genesis of jasper

bars, 143-5.

INDEX 533

Shillong Plateau (Assam), 222, 223. Shire Rift (E. Aft.), 342, 343, 351, 352,

365, 367, 368, 375. SHOTTO~r F. W., on geological work in

the invasion of NW. Europe, v. Sicillariostrobus rhombibracteatus, spores

from, 266, 267 fig., 268, pl. xvii. Silica-glass, formed by atomic bomb

explosion, v. Siliceous jasper bars, W. Australia,

122-3, 134-5, geol. map. Sills, in Harleeh Dome, 23-4, 25. Silurian, of Builth area, 157-8, 160, 163,

171. Simills-Pulchra Zone, marine bands of,

lxix, lxxiv. ' Sinistral ' & ' d e x t r a l ' faults, the

terms, 57. Skarn, development in limestones, 414,

432. S~Em~rO~, A. W., on the compressi-

bility of clays, 206-9, fig. Skipsey's Marine Band, lxix, lxx. Slate-granite contacts a t Cape Town,

499-521, figs., pls. xxxvi, xxxvii. SLATER, L., on plant spores, 293-4. Slopes, topographic, simulating tee-

tonic, 351-2. SOLOMO~r, J. D., on rifting in Uganda,

379-80. Southern Cross (W. Austr.), meta-

jaspilites from, 128, 129-30, fig. 131; chem. anals, of jasper bars from, 140, 141, 142.

SFE~CER, L. J., exhib, silica-glass from atomic bomb explosion, v.

Spessartite, in garnet of Harlech Dome rocks, 33; the term, 36.

Sphene, in Welfield dolerites, 162. Sphenophyllostachys cf. majus, spores

from, 271-2, fig. Sphenopteris sp., spores from, 259, 260

fig., pl. xvii. SpiriUina, 447 et sqq.

-groomi, 451 et sqq. pls. xxvii, X X V l l l �9

inf ima, 452-3, pl. xxvii. Spiroloculina, 79-94, figs., pls. iv-x,

103-4, fig. africana, 80, 82.

-depressa , 80, 82-3, pl. iv. �9 �9 excavata, 82.

inopinata sp. nov., 93-4, pl. x; variation in, 102.

Spirophthalmidium, 81 et sqq. - - acutimargo, 84, 86, pl. iv. - - i n proterogenetic evolution, 103

fig., 104. Spi~orbis, lxiii, lxv. 'Sporangia ', 274-6, pls. xvii & xviii;

spores from, 276-9, figs., pl. xvii. Spores, plant, preparation & macera-

tion of specimens, 254-5 ; descriptions of, 256-81, figs., pls. xvii & xviii; development of, 281-4; classification of, 286-8.

cs Spyroceras, 324, pl. xxii.

534 GENICRAL INDEX [vol. cii,

Staffordian, li. Stavanger (Norway), desilication of

chlorite-schist of, 405, 406-7, 408, fig., 410-1.

Stephanian, li ; position in Coal Measures, lxxvii-lxxviii.

STEW~aT, F. H., on the gabbroic complex of Belhelvie in Aberdeenshire, 465-96, figs., pls. xxxi-xx~xiii, 498.

Stinking Coal, lxxii. Strath Glass Fault, 56, 57. Strath Ossian Granite, 57. Strathconan Fault, 55 et sgg. Strontian Granite, 45, 47, 51 et sqq.;

& Foyers Granite, as evidence of dis- placement of Great Glen Fault, 60, 61-2, map, 63.

S T U B B L E S , C. J., 37; on the Cam- bro-Ordovician of Ellesmere Land, 335-6.

STUD~.It, B., his work on Alpine geology, ci-civ.

Sudan, Rift System in, 354-5, 357. SuJxowsxI, ZB., on the geological struc-

ture of East Poland and West Russia : a summary of recent discoveries, 189-201, figs. pl. xiv [map].

Sulphur Coal, lxxii. Surma Valley (Burma), 227. Sutherland, migmatites of, 404-5, fig.,

4O6-7. S ~ R T O ~ , H. It., 201; on Ophthal.

midium, 110. Syenite, Cnoe nan Cuilean, 411-3, fig.,

414-5.

Table Mountain Sandstone, 502, 506. Table Rocks Sandstone, lix. Talsarnau (Merioneth), sect. to Moel

Oernant, 17. Tanganyika, Lake, 342, 343, 349 et

sqq. Tanganyika Rift, 340 et sqq. ; T. trough,

346-51. Tanganyika Territory, Rift System in,

342, 343, 346-51. TAYLor, J. H. See HOLLINGWORTH,

S.E. T~.AI~, E. O., 154; on the East African

Rift System, 380-1. Tectonic associations of Great Glen

Fault, 55-7, map. Tectonics & eromon in East African

Rift System, 339-88, figs., pl. xxv [maps].

Tensional hypothesis of rifting, 362-3, fig. Tertiary structures of E. & W. Europe,

connexion of, 196-7, fig. T ~ G ~ , K., discusses large-scale super-

ficial structures in Northampton Iron- stone Field, 203-4; on the compressibility of clays, 205-6; on the compaction of muddy sediments, 209.

Thick Coal, Staffs., lxi. THOMAS, It. It., on plant spores, 291. T ~ y , C. E., 154-5; on granite-slate

contacts in Cape Town, 519-20.

T6rnquist's line of demarcation between E. & W. Europe, 198, 199, 201.

TOMLn~SO~, T. S., on plant spores, 293. Toodyay (W. Austr.), 128. Traeth Bach (Merioneth), 3, 4, 16, 18;

T.B. Syneline, 21. Trawsfynydd (Merioneth), 3, 7, 11, 13,

18; T. Fault, 10, 16, 19, 21 et sqq. Tm~C~A~-N, C. T., 154. Tr6gastel-Plouman-c'h (Brittany), grani-

tization of norite at, 422-3, fig., 424-5; inclusions in granite of, 430-1, fig.

Trilobite gen. & spp. indet., 328-9, pl. ~176

Troctolite, Belhelvie complex, 466 et sqq., 471-2, 474, 475, chem. anal., 478-9. pls. xxxi, xxxiii.

T~OT~z~, F. M., 293. T ~ U ~ w , A. E., 246, 335, 456; on

Ophthalmidium, 109-10; on plant spores, 290-1 ; addresses to medallists & recipients of funds, xxlx et sqq. ; on stratigraphical problems in the Coal Measures of Europe and North America [Anniversary Address], xlix- xciii, figs., pl. A.

Tuckanarra (W. Austr.), glaucophane- aegirine - augite - magnetite - quartzite from, 132-3; chem. anal. of banded haematite-quartzite from, 141.

Tyn-y-groes (Merioneth), 11, 14 e~ ~/q.

Ubwari (Tanganyika Territory), 346, 349. Uganda Rift, formation of, 362-5, figs. Ukraine, granitic block of, 190-1, 192,

194. Upper Manganese Shales (Manganese

Group), of the Harlech Dome, 5, 10-1.

Uralitization of rocks of Belhelvie complex, 477-8, 482-4.

Urundi (Tanganyika Terr.), 348, 356; U. scarp, 346.

V ~ STRA~LEN, V., 111. Veins, basic, of Belhelvie complex, 485. Vermilion Iron District (Lake Superior):

119. Victor Harbour (S. Austr.), granite of,

404, 406-7, 410-1. Victoria, Lake & basin (E. Africa), 342

et ~/q.; eomp. w. other African basins, 365.

Vigra Flags (Cambrian), of the Harlech Dome, 3, 5, 14-5, 19, 20 et sqq.

Vipya area (Nyasaland), sects, across, showg erosion surfaces, 344 fig.

Volhyn group (Archaean), Poland, 191. VolhyDia, Lr Palaeozoic of, 192, 193;

Devonian of, 194. Voronezh granitic block, 190-1, 192.

Wainlode Cliff (Glos.), 452, 453. WALFORD, E . A. , h is foraminiferal clay

samples from the Lias of Byfield, 77, 79.

part 4] GENERAL INDEX 535

WALU~R, 1~. (& M. MATHIXS), on the petrology of two granite-slate contacts at Cape Town, South Africa, 499-518, figs., pls. xxxv, xxxvi.

W~LIS, C. B., obit., xlvii-xlviii. WALTEr, R. C. S., on water from the

Barber Booth well, 210. Warren House Coal, thickness variations

in, lviii, fig. Warriedar (W. Austr.), chem. anal. of

banded haematite-chert from, 141. Water, Barber Booth Well, 210. W~.BB, J. S., 438-9. Weld Range (W. Austr.), chem. anal.

of red jaspilite from, 141. Welfield (Radnorshire), dolerite intru-

sions at, 157-87, figs. pl. xiii. Welfield Ridge, 180; dolerites of, 161-3,

164-70, figs., 182-5 figs. ; sects. across, 165, 170, figs.; structure & origin of, 171-8, figs.; laccolith of, 173-8, figs., 186-7 fig.

Welfield Rocks, 163, 164; sects, across, 169, 170 fig., 176 fig., 177.

Welfield Rocks Fault, 164 et sqq. Welfield Wood, 167, 168, 175. WELLS, A. K., on the Harlech Dome,

35-6; on the Cambro-Ordovician of Ellesmere Land, 336; on the granite- slate contacts at Cape Town, 518-9.

Welsh Vein, lv. Western Australia, jasper bars of, 115-

55, figs., pls. xi & xii. Western Rift (E. Africa), 342, 845, 352

et sqq. Westphalian, position in Carboniferous,

1, li; subdivision of, lii; boundary between Stephanian &, lxxvii-lxxviii; palaeogeography of, lxxxvi fig., lxxxix fig.

White Leaved Oak (Malverns), 447, 448, 449 fig.

Whitestone Series, W. Australia, 116. WILLIAM SMITH Lecture, establishment

of, i-ii, vii. Wmso~, G., 439. WILSON, T. S. (• C. A. ~/~ATLEY) On the

Harlech Dome, north of the Barmouth estuary, 1-35, figs. pls. i & ii, 37.

Wiluna (W. Austr.), magnetite-grunerite- quartzite of, 128 fig.

WOLLASTOI~" MEDAL presented to E. DE MA~GE~n~, xxix--xxxi ; W. Fund presented to J. L. B~.~o, xxxiv.

WOOD, A., on Ophtha lmid ium: a study of nomenclature, variation, and evolution in the Foraminifera, 77-109, figs. pls. iv-x, 111-2, 112-3; on the supposed Cambrian foraminifera from the Malverns, 447-56, fig., pls. xxvi- xxviii, 459, 460 ; on the type specimen of the genus Ophthalmidium, 461-3, pls. xxix, xxx; receives Murchison Fund, xxxiv-xxxv.

WOODLAND, A. W., 36-7; on the petrology of the sediments of the Harlech Dome, 29-34.

WOODS, H., obit. of F. R. C. REED, xlv--xlvi.

WoamE, J. M., obit. of C. B. W ~ m , xlvii-xlviii.

Wrench-fault, Great Glen Fault as, 53 et sqq., 68-70, map.

WRIGHT, C. W., 201. Wulff River formation {Cambrian),

Greenland, 301, 305, 307, 308. Wye, R. {Wales), 157 et sqq. ; dolerites

of, 178-82, figs., 182-5, figs.; sects. along, 180, 181 figs., 182.

Xenoliths in granitic rocks, identifica- tion of parentage, 427-32, figs.; in granite of Cape Town, 501, 504, 508-9, 513; basification of, 514-5; optical &c. data, 516; chem. anals., 517.

Y Garn (Merioneth), 10, 11. Yampi Sound (W. Austr.) iron ores

comp. with those of Mt. Wilga, 121.

Yilgarn Goldfield (W. Austr.), 116; see also Mt. Palmer &c.

Zambezi basin, relation of post-Tertiary rifts to Karroo structures of, 343-6, 365-8; Z. trough {Africa), 343-6; Z. Valley (Africa), 341, 343.