GENERAL INDEX TO VOLUME CII

ABYSSINIA, Rift System in, 353, 354-5, Anthracosia, lxiii & footnote; vert. & 357 et sqq. ; late Jurassic peneplain in, horiz, distribn of, Ixiv et sqq., lxvi fig. 369-70, 373-4; A. plateau, E. scarp aquilina, lxiv. of, 374-5. Anthracosphaerium, vert. & horiz, dis- Acadian province of Canada, lxxxvi fig., tribn of, lxvi fig. Ixxxvii-lxxxviii. Apatite, in banded ironstones of Booly- Accounts (& Estimates), xii-xxviii. gee Range, 132, 133; in Welfield Acrothele pulchra, 309. dolerites, 162. Actinopeltis gen. nov., 324. Aplite, Cape Town, 504--5 ; optical &c. --feildeni sp. nov., 324-5, pl. xxii. data, 516; chem. anals., 517. Aeger marine band, lxxi, lxxv, lxxvi, Aplogranite, Cape Town, 505. lxxxi. Arakan-Assam province, density scale Aegirine-augite in banded ironstone of of Tertiary rocks in, 219-20. Tuckanarra, 132-3. Arakan Yoma (Burma), 222, 227, 230. Aerial photography, geology &, vii. Archaeorthis groenlandica, 320. Afar plain {Abyssinia), 369, 370. /~RKELL, W. J., 75. Afon Gamlan (Merioneth), 9 et sqq. ; sect. Artro Fault, Upper & Lower (Merioneth), along, from the Afon i~Iawddach, 12. 20-1. Afon Mawddach (Merioneth), 3, 15, 19; Assam-Arakan province, density scale M. estuary, 9. of Tertiary rocks in, 219-20. Afon Wen (Merioneth), 3, 19. Assam Valley, 223 et sqq. A(~m~T,L, S. O., on dolerites of Welfield Asterotheca oreopteridia, spores from, area, 161-3. 257 fig., 258. AmY hypothesis of isostasy, 214-6, fig., Atomic bomb explosion, silica-glass 235. from, exhib., v. Albert, Lake (E. Africa), 342, 345, 352 Augite, in Welfield dolerites, 161, 163. et sqq. Augite-peridotite, Belhelvie complex, Albert Rift {East Africa), 340, 342 et sqq. 469-70, 474, 475 chem. anal. Alpine geology, evolution of, xevii-cxiv. Aulacotheca Hemingwayi, 279-81, figs. America (North), correlation of Palaeo- zoic with Greenland equivalents, 307; Baehe Peninsula (Ellesmere Land), Cam- Pennsylvanian of, lxxxiv-xc, figs.; bro-Ordovician fossils from, 300 et glacial map of, exhib., xcv. sqq. Amman Marine Bed, lxix, lxxii et sqq. BACKLU~rD, H. G., on granitization, Ammanian (= Lower Westphalian), li 443-6. et sqq. BAILEY, E. B., 37 ; on Great Glen Fault, Amphibole in metamorphosed banded 73. ironstones of W. Austr., 128, fig., 129 ; Baltic facies of Lr Palaeozoic, 193-4. in eulysitic rocks of W. Austr., 136, Bancroft-Haliburton area {Ontario), 137-8, figs. granite-limestone contact in, 414-6. ANDERSON, E. 1VL, on the Great Glen Banded haematite & iron formations. Fault, 72-3. See Jasper bars. Andesite, granitization of, 421-2, figs., Banding in rocks of Belhelvie district, 424-5, 428-9, fig. 485-7, fig., pls. xxxii, xxxiii, 488-92. Anglesey, as source of Harlech Dome Bangueulu basin (N. Rhodesia) compared rocks, 34. w. Victoria basin, 365. A~OLO-IRANIAI~ OIL COMPANY (& BuR- Bantry Bay {Cape Town), 505, 513. ~H On~ COMPANY), establish fund Barber Booth Well, water from, 210. for students' tours, i, vii. Baringo, Lake (E. Africa), 342. angustifolius horizon (Ordovician), Green. Barmouth Grits (Cambrian), of the Har- land, 308. lech Dome, 5, 10, ll et sqq. Annual Report of Council, vi-x. BA_RNAI~D, T., 460; (& A. WOOD) On Anthracomya, name replaced by Anthra. Ophthalmidium: a study of nomen- conaia, lxiii footnote. clature, variation, and evolution in Anthracona~a, lxv; the name, lxiii foot- the Foraminifera, 77-109, figs., pls. note; vert. & horiz, distribn of, lxiv iv-x. et sqq., lxvi fig. Barnavave (Co. Louth), alteration of Anthraconauta, lxiii & footnote; vert. dolerite of, 418-9, fig., 424-5. & horiz, distribn of, lxiv et sqq., lxvi Barren Red Beds of Canonbie Coalfield, fig. lix. 523 524 GEN]gRAL INDEX [vol. eli, Basalt, Glasdrumman Port, basification Builth Wells (Breconahire), 157, 158. of, 419-20, 424-5; of Gardiner R., BULL, A. J., obit. of F. GOSSLINO, xli-- rhyolitization of, 423, 424-5, 426, fig. xlii. Bastion formation (Cambrian), Green- BUT.r.ARD, E. C., on gravity anomalies, land, 308. 246-7. Bathyurellu~ teicherti, 325, pl. xxii. Bullfinch (W. Austr.), banded grunerite- B~GG, J. L., receives Wollaston Fund, magnetite-quartzlte of, 127 fig., 131. xxxiv. Bullion Mine marine bed, lxix, lxx. Belhelvie (Aberdeenshire), gabbroie com- B~, O. M. B., on the Cambro- plex of, 465-98, figs., pls. xxTi-xxxiii. Ordovician of Ellesmere Land, 337; Bengal Delta, 223, 227. receives L yell Medal for R. H. RAS- B~Nso~, E., obit., xxxix. TALL, XXXII. B~NT~AM, R., fossils from Ellesmere Burma & NE. India, geological factors Land collected by, 299-337, pls. xix- & gravity determination in, 211-49, xxiv. figs., pl. xv [map]. Benthamaspis gen. nov., 325. BuR~,w OIL COMPANY (& ANGLO~ ~.p. roblematica sp. nov., 325-6, pl. I~IAN OIL COMPANY), establish Xxn. fund for students' tours, i, vii. BettyhiU (Sutherland), desilication of BU~aARn'S ' Hidden Range ', 235. pelitic gneiss of, 404-5, fig., 406-7. Bushveld complex (Transvaal), fels- bifidus horizon (Ordovician), Greenland, pathization of quartzite of, 409-10, 306-7, 308. 414-5. Blainiopsis gen. nov., 312-3. BusK, H. G., on the East African Rift benthami sp. nov., 314-5, pls. xix, System, 382-3. xx, 330. Bwlch Ardudwy Fault (Harlech Dome), holtedaldi sp. nov., 313-4, pl. xix, 22. 330. Byfield (Northants), Walford's sect. in scheii sp. nov., 315-6, pl. xx. Lias of, 79. ? sp., 316, pl. xx. horizon (Cambrian), Ellesmere Caerdeon-Bodlyn Fault (Harlech Dome), Land, 301, 305, 306, 308, 330. 18, 21. Blue Hill (Maine), 408. Caerdeon Syncline, 18, 21. BLYTH, F. G. H., 188. Calamostachys sp., spores from, 269 fig., Bobownia (Poland), 190. 270, pl. xvii. Bolbocephalus glaber, 326. Cambrian formations, terminology of, Bolgart (W. Austr.), eulysitic rocks 36; C. & 0rdovician fossils from from, 136-7, fig., 138. Ellesmere Land, 299-337, pls. xix- Bolton Marine Bed, lxx. xxiv ; supposed C. foraminifera, Bonniopsis gen. nov., 310. 447-60, fig., pls. xxvi-xxviii. na~uta sp. nov., 311, pl. xix. Camel Humps (W. Austr.), 134-5. rostrata sp. nov., 311-2, pl. xix. Camp Hill Quartzite correlated with horizon (Cambrian), Ellesmere Manganese Grit, 27. Land, 301,305, 307, 308. Cape Albert (Ellesmere Land) & Cape Boolygoo Range (W. Austr.), magnetite- Camperdown, coast between, 302, 306. apatite-grunerite.quartzite from, 132, Cape Camperdown (Eliesmere Land), 133. 301-2; (& Cape Albert), coast be- Boug~mr anomalies, chart for deter- tween, 302, 306. mining geological corrections to, 218. Cape Clay formation (Ordovician), Green- Boulder (Montana) batholith, 402-3, fig., land, 302, 306-7, 308, 331, 332. 406-7. Cape Frazer (Ellesmere Land), 304, 307. Boundary Peak (Inyo Range) batholith, ~ape Frederik VII formation,' Green- 404, 410-1. land, 305. BOWIE & HAY~ORV, their theory of Cape Kent formation (Cambrian), Green. isostasy, 214-6, 231,232. land, 305, 307, 308. Brachiopod gen. & sp. indet., 312, Cape Steven (EUesmere Land), 303, 307. pl. xix. Cape Town, petrology of granite-slate Brander, Pass of (Argyll), Carboniferous contacts at, 499-521, figs., pls. xxxv, of, 67. xxxvi. Breven dyke (Sweden), alteration of Cape Victoria Head (Ellesmere Land), dolerite of, 417-8, fig., 424-5. 302, 332. Brooking Range (W. Austr.), banded Cape Weber formation (Ordovician), ferruginous chert from, 128 fig. Greenland, 302 et aqq., 306-7, 308, Bryn-celynog Fault (Merioneth), 19-20. 332. BUCHA~, S., on the geology of opencast Cape Wood formation (Cambrian), coal in Great Britain, ii-iii. Greenland, 301,305-6 et 8qq. BUC~LA~D, Dean W., his snuff-box Carbonicola, lxiii & footnote; vert. & presented, vii. horiz, distribn of, lxiv et s~q., lxvi, fig. part 4] GENERAL INDV.X 525

Carboniferous, of E. Poland, 194-5; C. Corinthian (Yilgarn Goldfield), 131 ; plant spores, 251-98, figs., pls. xvi- bleached jaspilite from, 134. xviil; C. System, classification of, Cornuspira, 81, 82, 87. xlix-lii; C. palaeogeography, lii-liii, Corynepteris sp., spores from, 259, 260 lxix map, Ixxx-lxxxii; Upper C. of fig., 262, pl. xviii. N. America, lxxxiv-xe, figs. COTTON, G. (& R. G. S. HUDSON), on Cam Chuinneag Granite, 57. water from the Barber Booth Well, Carneddau Fault, 182 et seq. 210. ' Carpolithus ovoideus,' spores from, Council, Annual Report of, vi-x; (& 272-4, fig. Officers) elected, x. Cass Fjord formation (Ordovician), Cox, A. H., 36, 75. Greenland, 302, 306 et sqq., 332. Cox, L. R., 111. Catharina marine band, lxxiii, lxxiv, Cox, P. T., Lyell Fund awarded to, lxxvi. xxxv-xxxvi. CAYEUX, L., obit., xxxvii-xxxix. CRAIG, E. H. C., oil Great Glen Fault, Cayeuxina, 460. 73-4. Cefn Cam (Merioneth), 8. Craig Las-eithin Fault (Merioneth), 19, Cefn Coch Grit (Cambrian), of the 20; C.L.-e. intrusion, 19, 24. Harlech Dome, 5, 13, 19 et sqq. Cretaceous (Upper) structures of E. & Cefn Coed Marine Band, lv, lxiii, lxix, W. Europe, connexion of, 195-6, fig. lxx-lxxi, lxxiii, lxxxv. Cristellaria, 447, 454. Cefn Dyrys. See Welileld. Crocidolite, in W. Australian jaspers, Cephalapod gen. & sp. indet. (cf. Spyro. 117 ; c.-bearing ironstones of W. Austr. ceras), 324, pl. xxii. & S. Afr. compared, 117-8. Chalk, of E. Poland, 192, 195. CROMP~O~, W. (& P. Eves), on geo- Charles Marine Bed, lxx. logical factors in gravity interpreta- Chelm (Poland), Chalk at, 195. tion, illustrated by evidence from Cherokee Shale, Missouri, lxxxv. India and Burma, 211-44, figs. pl. xv Cheviot granite, parentage of inclusions [map]. in, 424-5, 428-9, fig. CROOXALL, R., on plant spores, 291-2. Chindwin-Irrawaddy basin, 224, 227, Cwmgorse (S. Wales), rhythmic deposi- 230. tion of Coal Measures at, Iv; C. Chlorite, in We]field dolorites, 161, 162. Marine Beds, lxiv, lxix, lxxiv-lxxv, Clackline (W. Austr.), eulysitic rocks 1XXXV. from, 136, 137-8 fig. Cybelopsis speciosa, 326. Clarkoceras sp., 323-4. ' Cyclothem,' the term, fix. Clavaspidella limestone (Cambrian), Cystid gen. & sp. indet., 320. Greenland, 305. Clavaspidella ? sp., 316. Dalradian, Great Glen fault-line, 47, Clay Cross Marine Bed, lxix, lxxii et sqq. 50, 51. Clays, compressibility of, 205-9, fig. Darjeeling (India), gravity anomaly at, Cleavage, in sediments of Harlech Dome, 215; gravity profile through, 237-8, 22-3. fig. Clifton (Cape Town), granitized xenolith Darling Range (W. Austr.) Metamorphic at, pl. xxxv; anal. of aplite below Belt, 117; metamorphosed banded xenolith, 505, 517. ironstones of, 135-40, figs. chem. anals. Clogau Shales (Cambrian), of the Har. Dartmoor granite, alteration of associ- lech Dome, 3, 5, 13-14, 19, 20 et sqq. ated rocks by, 397-9, figs., 406-7, 410- Cnoc nan Cuilean (Sutherland) syenite, 11 ; inclusions in, 431-2, 434, 435. 411-3, fig., 414-5, 435. DAvI~s, A. M., 111,458. Coal, opencast, in Great Britain, ii-iii. DAvI~s, K. A., 382. Coal Measures, formation of, liii-lv; DAvIEs, L. M., 384. cyclical nature of C.M. strata, lv- DAvis, A. G., 456-7. lxii, figs. ; non-marine faunas of, lxii- DE SAussumL H. B., his work on Alpine lxviii, fig. geology, xcvii-ci. Coal seams, study of plant spores in DEER, W. A., 497. relation to, 285-6; wide extent of, Deltas, gravity anomalies in, 238-9; liii-]iv. see also Bengal Delta &c. Coastal Anticline (Harlech Dome), 18. Desilication, definition & cause of, Coed Gerddi Fault (Merioneth), 21. 391-2; examples of, in pelitie &c. Cole's Find (W. Austr.), magnetite- rocks, 395-7 et sqq. grunerite-quartzite of, 128 fig. Devonian, EC. Europe, 194-5. COLLINS, R. S., 154. D~.WHUP~T, T., 247-8. Communis Zone, lii; absence of marine ' Dextral' & ' sinistral' faults, the strata in, lxix. terms, 57. Compressional hypothesis of rifting, Dhoon granite (I. of Man), inclusions in, 362-3, fig. 429-30, fig., chem. anals. 526 oE~ n~x [vol. eii,

Dicellograptus sextans var. ex///s, 179. End-stage rocks, Belhelvie complex, Dicranograptus shales, 184. 477-84, anals. Didymograptus ? sp., 319-20. Ericht-Laidon Fault, 56, 57, 61. Differentiation, in rocks of Belhelvie Eritrea, Rift System in, 354-5. complex, 488-92. Erosion & tectonics in East African Rift Discospirina, 82. System, 339-88, figs., pl. xxv [maps]. DEWEY, F., on erosion & tectonics in the Estheria, ixiii. East African Rift System, 339-79, Esthonia, Lr Palaeozoic of, 192, 193. figs., pl. xxv [maps], 384-6, 387-8. Estimates (& Accounts), xii-xxviii. Dolerites, of Welfield complex, 158, 160, Euestheria, lxiii-lxiv. 161--4; of Welfield Ridge, 164-70, Eulysite, the term, 147-8. figs.; of R. Wye, 178-82, figs.; Eulysites & eulysitic rocks of W. Austr., alteration of d. by granite magma, 117, 131-2, fig., 135-40, figs., 147-9. 418-9, fig., 424-5. Europe, geol. relation between E. & W., Dolgelley Gold Belt, 2, 4, 5. 195-9, maps; Coal Measures of parts Dolwen Grits (Cambrian), of the Har- of, lxxviii-lxxxiv, figs, lech Dome, 5, 7, 8, 32. Eves, P., 497; (& W. CROMPTON), on Dolwen Pericline, 18 et sqq. geological factors in gravity inter. Donetz Basin, 192, 195, 198, 199; pretation, illustrated by evidence from rhythmic deposition in Coal Measures India and Burma, 211-44, figs. pl. xv of, Ix; non-marine faunas in, lxii et [map], 249. sqq. EvANs, W. D., on the Welfield intrusion, Dukinfield Marine Bed, Ixx. 187-8. Dunan (Sk~e), 410-1, 414-5. Eyasi, Lake (E. Africa), 342, 350, 359 Du~mAM, 1~. C., 439. e~ sqg. ; E. basin, 349; E. scarp, 346. Dunite-serpentine of Belhelvie complex, 469, 474, 475 chem. anal. Falmouth granite, 399-401, figs., 406-7. Dykes, Harlech Dome, 23-4, 25-6; Fault-line scarps (----so-called fault. Permo.Carb. & Permian ds. in relation scarps), E. African Rift System, 341. to Great Glen Fault, 52. Fault-scarps (so-called), East African Rift System, 341. E~RT.~., K. W., obit., xxxix-xl. Fault-trough, defined, 340-1. Earthquakes along Great Glen Fault, 46. Faulting, dynamics of, 67-71, maps. East African Rift System, erosion & Faults, Harlech Dome, 18-22 ; of Great tectonics in, 339-88, figs., pl. xxv Glen, 41-76, figs. pl. iii; NE. fault [maps]. system of Highlands, 55-7, map; fs, East Murchison Goldfield (W. Austr.). of Welfield area, 164, 180, 182; post- See Brooking Range, Boolygoo Range Karroo & Rift fs. compared, 347. Fayalite, in eulysites of W. Austr., Eastern Rift (E. Africa), 342 et sqq., 131-2, fig. 352 et sqq., 357-60. FE~aNS~D~.S, W. G., on Great Glen Eccyliopterus ? sp. indet., 322. Fault, 75; on the Harlech Dome, Eehinoid spine from 'Cambrian' of 37-9 ; receives Lyell Award for Malverns, 448, 450, 451, pl. xxvi, 458, W. PULF~EY, XXXV. 459. Fellows elected, i, ii, iii, iv, xciv, xcv; Edjudina (W. Austr.), chem. anals, of deceased, resigned &c., list of, x-xi; banded ironstones from, 140, 141. names read out, i, xcv. Edward, Lake (E. Africa), 342, 345, 355 Felspar grains in banded Belhelvie rocks, et sqq. parallelism of, 487-8, fig. Edward Rift (E. Africa), 343, 361. Felspars, 'clouding' in, 435-6. Elgayo scarp (Kenya), 341, 357 et sqq. Felspathiz~_tion of Cape Town granite, Elgon, Mr. (Uganda): 353. 513-4. Ella Island formation (Cambrian), FERMOR, L. L., 521; on manganese-ore Greenland, 308. deposits of India &c., 40; obit. of ELLES, G. L., obit. of Dame E. M. R. S. H-ESLOP, xliii. SHAX~.SPEA~, xlvi--xlvii; referred to, Ferruginous jasper bars, W. Austr., 158-9, 178 et sqq. 119-22, map ; metamorphosed, 124- Ellesmere Land (Greenland), Cambro- 34, figs. maps. Ordovician fossils from, 299-337, pls. Ffestiniog Flags of the Harlech Dome, xix-xxiv. 3 et sqq. Elrathia ? sp., 316-7, pl. xx. Flamanville (Normandy), granitlzation Elrathiel[a, range of, 306. processes at, 393-7, figs., 406-7, obscura, 306. 410-11, 434, 435. horizon (Cambrian), Greenland, 305 Floras, sequence in Coal Measures, et sqq. lxxv-lxxvii. Ely greenstone, Minnesota, alteration of, Fluorite, in bleached jaspilite from 420-1, fig., 424-5. Corinthian, 134. p&r~ 4] GENERAL INDEX 527

Feel Ddu (Merioneth), 10, 18. Golden Valley (W. Austr.), banded Feel Wen (Merionethl, 10. actinolitic quartzite of, 127 fig. Folding, post-Silurian, formation of Gondite of India & W. Africa, 40. Welfield Ridge by, 171-3, fig. Goniotelus, 326. Folds, Harlech Dome, 18. baggildi, 327. Foraminifera, variation study in, 94-102, crassicornis, 327. figs. ; proterogenesis or recapitulation sp. indet., 327, pl. xxii. in, 103-6, figs.; GRooM's supposed GOODCHILD, $. H., 154. Cambrian.,. fi, 447-60, fig., pls. xxvi- GoRDon, Dame M. M. O., obit., xl-xli. XXVlll. GossLINO, F., obit., xli-xlii. Foreign Members elected, iii. Granite, Cape Peninsula, 500, 502, 504, Fossil, undetermined, from Ordovieian pl. xxxvi; intrusion of, 509-10; dif- of Ellesmere Land, 330, pls. xxiii, ferentiation of, 510-11, fig.; fels- xxiv. pathization of, 513-4; optical &c. Foyers Granite, 47, 51 et sqq. ; & Stron- data, 516; chem. anals., 517; later tian Granite, as evidence of displace- gs. of Belhelvie district, 492-3. ment of Great Glen Fault, 60, 61, ' Granitization,' the term, 392. 62-3, map. Granitization, sequence of geochemical changes leading to, 389-443, figs. ' Gal,' the term, 213. Granitized banded ironstones, W. Austr., Gamlan Flags & Grits (Cambrian) of the 133-4. Harlech Dome, 5, 11-3, sect., 18, Gravity variation, nomenclature of, 20 et sqq. 213-4; g. readings in Burma & NE. Gardiner River (Wyoming), rhyolitiza- India, 224-31; B anomalies in the tion of basalt at, 423, 424-5, 426, same, 225 fig. ; C anomalies in the fig. same, 226 fig. ; geologically corrected Garnetiferous rocks of the Harlech Dome, anomalies in the same, 227 fig., petrology of, 33. 228-9 fig., 231 fig., 232-4, fig. ; causes GA~WOOD, E. J., obit. of Mrs. EM~ of major anomalies, 234-8, figs.; BENSON, xxxix; of K. W. EAt~E, causes of minor anomalies, 239-40; xxxix--xl ; of Dame M. M. O. GORDON, g. profiles produced by masses of xl-xli ; of CATm~BINE RAISIn, xliv--xlv. different shape, 235-8, figs. Gastropod horizon (0rtlovicianl, Green- Great Britain, opencast coal in, ii-iii. land, 302, 303, 308. Great Glen Fault (Scotland), 41-76, figs., Geochemical changes leading to granit- pl. iii [maps]. ization, sequence of, 389-443, figs. Great Rift Valley. See East African ' Geochemical culmination ' & ' g. de- Rift System. pression ', the terms, 392. Greenhills (W. Au~tr.), eulysitic rocks Geological factors in gravity interpre- from, 138 fig., 139-40. tation, 211-49, figs. pl. xv [map]. Greenland, correlation of Palaeozoic Geologists, work of, in invasion of with N. American equivalents, 307; NW. Europe, v. alteration of limestone in, 416; see Geology, aerial photography &, vii. also Ellesmere Land. Giant's Range (Minnesota) batholith, Greenstone dyke, I. of Man, & g. inclu- 403-4, fig., 406-7. sions in a~)hoon granite, 429, 430, GILBERT, G. K., referred to, 173-4, chem. anals. 175. GRIFFITE, G. T., obit., xlii-xliii. Gin Mine Marine Band, lv-lvi, lxviii Grinnell Land (Greenland), Cambro- et sqq. Ordovician fossils from, 300 et sqq. Glacial map of N. America exhib., xev. Griquatown Series in Griqualand West, Glasdmlmman Port (Co. Down), basi- crocidolite-bearing ironstones of, 117-8. fication of basalt at, 419-20, 424-5. GRooM, T. T., his supposed Cambrian Glaueophane, in banded ironstone of foraminifera from the Malverns, 447- Tuckanarra, 132, 133. 60, fig., pls. xxvi-xxviii. Glen More (Scotland), 42, 45 et sqq. GROVES, A. W., 74. Glossopleura of. expansa, 317-8, pl. xx. Grunerite, in quartzites of W. Austr., longifrons, 318. 124, 125-7 et sqq. ; in eulysitic rocks walcotti, 318. of W. Austr., 136 fig., 137-8, 148 et horizon (Cambrian), Ellesmere sqq.; g.-bearing jasper bars from Land, 301, 305, 306, 308. Southern Cross, chem. anals, of, 140, Glyn Valley Fault (Merioneth), 21. 142. ' Glyptarca primaeva Hicks ' of Groom Gwern-yfed-fach (Radnorshire), 158, 180 ; 1902, 448, 449, 450-1, pl. xxvi. dolerite sills near, 162-3, 164; G.-y.-f. Glyptograptus teretiusculus, 179; G.t. zone, Fault, 182 et sqq. I59, 179. Goethite, in jasper bars of W. Austr., Haematite, in banded ironstones of 119. W. Austr., 119-20 et sqq. ; chert & Q.J.G.S. No. 408. NN 528 o~~ n~.x [vol. cii,

h.-quartzites of W. Austr., chem. impregnation of, 511 ; basification of, anals, of, 139, 141; see al~o Jasper 514-5; optical &c. data, 516; chem. bars. anals., 517. Haflong (Assam), 224, 247; geologically HuDson, R. G. S. (& G. COTTON), On corrected anomalies NE. of, 230-1, water from the Barber Booth Well, fig. ; gravity profile near, 240 fig. 210. Hafotty Shales. See Manganese Group. Hyolithes (Hgolithes) sp., 309, pl. xix. Haliburton-Bancroft area (Ontario), Hypersthene.magnetite rock from Green- granite-limestone contact in, 414-6. hills, 138 fig., 139; h.-gabbros, Bel- ~[AT.T.TMOND, ~k. F., 154; obit. of W. helvie complex, 472-3, 476; chem. FOTX.ARD, xliii; of E. G. RADLEY, anals, of, 474-5, 482, pl. xxxi. xliii-xliv. HyatT~icurus... a~n~s ep. nov., 331-2, pl. }~rlech ]Dome (Wales), geology of, 3['~CIII, 1-4o, figs. pts. i & ~. c~,~imbatu~, 327, pl. xxii. W_arlech Grits, 9; petrology of, 30-2. Harmsworth Bay (Ellesmere Land), Igneous rocks of the Harlech Dome, 302-3. 23-6; of the Great Glen fault-line, Harper's Quarry (Radnorshire), 158. 52; associated with granite, meta- HARmso~, J. V., 75. somatic alteration of, 417-26, figs. Hartshill Quartzite correlated with Ilmenite, in Welfield dolerites, 162. Rhinog Grits, 27. India (NE.) & Burma, geological factors Hauerinella, 81, 86-7. & gravity determination in, 211-49, inconstans, 81, 85-6, pl. iv. figs. pl. xv [map]. --margaritifera, pl. iv. Indus Delta, 239. Hawzass, L., receives Murchison Medal, Injection co.mplexes of Moine Series, mi--xxxii, Great Glen Fault &, 57-8. HAwxx~, H. L., 458. Tvnlnmoro (Argyll), Carboniferous at, Hayes Point (Ellesmere Land), 303-4, 67. 307. Inverness (Scotland), 45, 46. HA~To~v & Bow~, their theory of Iringa (Tanganyika Terr.), 348, 349. isostasy, 214-6, 231,232. Ironstones, banded, from W. Austr., Hcaney's Find (W. Austr.), n~agnetite- chem. anals., 140, 141; ace a/so grunerite-quartzite of, 128 fig., 130 Jasper bars. map, 131, 132 ; granitized banded Irrawaddy Delta, 238, 239. ironstone at, 133-4. Isooh~ina perporosa, 329. Hedeabergite-bearing j aspilite,W. Austr., " 329-30. 129 fig., 131. Isostasy, hypotheses of Amy & PRAy, Heerlen classificatiofi of Upper Car- 214-6, fig. ; in India, 231-4, fig. boniferous correlated with lamelli- ]8o~ ? ~po~ar/a, 327, p]. xxili. branch zones, li. H~XM, ALB~.~% his Oeologie der ~chwelz, Jasper bars of W. Austr., 116-8; field civ, cvii-cxii. occurrence of, 118; petrography of, Helicotoma ? sp. indef., 323, pl. xxii. 118-40, figs. ; chemical composition of, Henga-Kasangadzi surface, Nyasaland, 140-2, chem. anals. ; genesis of, 344 fig., 345 fig. 143-7 ; metamorphism of, 147-51. Hercynian front in W. Europe, direction Jaspilite, contorted, North Coolgardie of, 69 map, 70-1. Goldfield, 119, pl. xi; composition of, HESLOP, S., obit., xliii. 120-1 ; see a/so Jasper bars. HIC~T.rSo, G., on plant spores, 295-6. Jo~s, O. T., 74; on the compaction of Highland Schists, Belhelvie, 466-7. muddy sediments, 209-10; (& W. J. HOT.T.A~, T. H., on gravity interpre- PuoH), on the complex intrusion of tation, 244-6. Welfield, near Builth Wells, Radnor- HOLLn~QWORTH, S. E., 75; (& others), shire, 157-87, figs., pl. xiii (geol. map), on large-scale superficial structures in 188. the Northampton Ironstone Field, Junior Associates admitted, i, ii, iii, iv, 204-5. xciv, xcv; list of, xi. HoTmr~.s, A., 440. Jurassic of E. Poland, 195; late J. Homoceratoides ~ac~i, ITx'xw. peneplain of E. Africa, 368-75. Horbury Rock, thickness variations in relation to Warren House Coa~, lviii, ]~l~Amega scarp (Kenya), 341, 357-8. ag. Karroo, E. Africa, 341 et s~/.; K. Hormotoma ? sp. indef., 323. troughs & basins, post-Tertiary rifts HOraCE, J. (& B. P~-ACH), quoted, 59. &, 365-8. Hornfelsed Malmesbury sediments, Cape Kavirondo Gulf (Kenya), 341, 353, 359; Town, 506, pl. xxxvi; optics &c. of, K. scarp, 341. 516; chem. anals, of, 517. "R'~T.T,AWA.Y, G. A. See HOT.T.TWG.- Hornfelses, Cape Town, 506, pl. xxxvi; WORTH, S. E. part 4] GENERAL INDEX 529 KENNEDY, W. Q., on the Great Glen Liassic (or Rhaetie) age of Malvern Fault, 41-72, figs. pl. iii, 75-6. foraminifera, 450-3. Kenya Rift, 342, 348, 351; theories of Library Committee, report of, ix-x. formation of, 362-5, figs. Lids (Poland) granitic block, 190, 192. Killarney area (Ontario), quartzite meta- Limestone associated with granite, meta- somatically altered, 410, 414-5. somatic alteration of, 392, 413-6. Kr~o, W. B. R., 336. Lirnnic coal basins, lii et sqq. ; of N. Kitale plateau (Kenya), 341, 357 et sqq. Europe, lxxxfi-lxxxiv, fig. Kivu, Lake & basin (E. Africa), 342, Limonite, in jasper bars of W. Austr., 345 et sqq. 119. Kloof Quarry (Cape Town), 500, 501, Lingula, Iv, lxiii, ]xv, lxviii, lxix. 504 et sqq. Lingula Flags, of the Harlech Dome, 3, KNox, J., on plant spores, 296-7. 14; the name, 36 ; see also Maentwrog Kochina arctics sp. nov., 318-9, pl. xx. Flags & Ffestiniog Flags. Koolyanobbing Range (W. Austr.), Lingulella davisi, 16. magnetite-grunerite-schist of, 128, 129. Linnhe, Loch (Scotland), 45 et sqq. Korong District (W. Austr.), 134-5, geol. map of, showing relation of pre. map. Carboniferous valley to Great Glen Kundulungu plateaux (Belgian Congo), Fault, 65. 365. Lithuanian basin, post-Devonian in, 195. Kungwe (Tanganyika Territory), 346, Livingstone Mtns. (E. Aft.), 346 et sqq. 349. Llanaber (Merioneth), 7 ; sect. to Mawddach estuary, 9; sect. to Beddo Laccolith of Welfield Ridge, 173-8, figs. ; y-Coedwr, 17. 186-7 fig. Llanbedr (Merioneth), 4 et sqq. Lagena, 447, 452, 453 et sqq. Llanbedr Slates (Cambrian), of the Har- Lake Austin (W. Austr.), chem. anal. of lech Dome, 5 et 8qq. banded jaspilite from, 141. Llanfair (Merioneth), 7, 8, 10. Lake Superior (N. Am.) region, iron- Llanfihangel-y-Traethau (Merioneth), 18, carbonate rocks of compared with 21; sect. to Moel Oernant, 17. banded iron formations of W. Austr., Loch Skerrols Thrust, 63 et seq. 117, 119, 121, 122. Loch Tay Fault, 55 et sqq. Lamellibranch faunas, non-marine, of Lochy, Loch (Scotland), pegmatite in Coal Measures, lxii-lxviii, fig. foliated sandstones of, 45, 51, 52. Lamellibranch zones of Upper Carboni- Lodes, Harlech Dome, 26-7. ferous correlated with Heerlen classi- Luangwa trough (Africa), 343-6; sect. fication, li; marine bands in, lxix. across, 345 fig. ; L. Valley, 341, 343, LAPWOR~, C., referred to, 1-2, 5, 159, 347. 178, 179. LYEI~ M~.D~ awarded to R. H. RAS- Laurentia, lxxxv, Ixxxvi fig. T~L, XXXii--xxxiv; L. FUND pre- Laverton (W. Austr.), banded grunerite- sented to W. PtrLFR~y, XXXV; to magnetite-chert from, 127 fig., 129. P. T. Cox, xxxv-xxxvi. LEES, G. M., 201, 383; receives Lyell Fund for P. T. Cox, xxxv. I~IAcFADYE~, W. A., 459; on OphthaI. Lenisuleata Zone, Anthraconaia fauna midium, 112. of recognized in Belgium &e., lxv; Maclurites sp. indet., 323, pl. xxii. marine beds of, lxix. Maentwrog Flags of the Harlech Dome, Lennoxian Series, compared with Cam- 5, 14-6. brian of Merioneth, 39. Magadi, Lake (E. Africa), 342. Lepidostrobus comosus, spores from, 261 Magnetite, in banded ironstone of W. fig., 262, pl. xviii. Austr., 119, 121, 122; m.-quartzites cfi ornatus, spores from, 264, 265 of W. Austr., 121, 122 micr. sect., fig., pl. xvii. 124-30, figs., map, 131-2, 136 fig., ? spinosus, spores from, 261 fig., 137 et sqq. 263, pl. xviii. Magnetny (Siberia), alteration of ande- cf. squarrosus, spores from, 265 fig., site at, 421, fig., 424-5. 266, pl. xviii. Maharan Sandstones, E. Africa, 358-9. variabilis, spores from, 266, 267 Malmesbury Series, Cape Town, 500, fig., pl. xviii. 501-2 et sqq. ; xenoliths of, in Cape sp., spores from, 264, 265 fig., 266, granite, 501,504; sediments of, 506-7, pl. xviii. pl. xxxvi. Leptites, of Orij~rvi, 406-7, 408, fig.; Malombe, Lake (E. Africa), 342. of Ryddarhyttan, 408. Malvern Hills, supposed Cambrian fora- LEWIS, H. P., obit. of G. T. GRIY~rrH, minifera from, 447-60, fig., pls. xxvi- ... xlii-xli~. XXVlll. Lias clay, fundamental strength of, & Manganese, in Lower Cambrian of effect on superficial structures, 203-5. Newfoundland, 27. 530 aEmgR~ IND~.X [vol. cii,

Manganese Grit of the Harlech Dome, 5, the jasper bars of Western Australia, 9, 10; correlated with Camp Hill 115-54, figs., pls. xi & xii. Quartzite, 27. Miliolidae, proterogenetic evolution in, Manganese Group (Cambrian), of the 103-4, fig. Harlech Dome, 5, 6, 9-11, 20, 32. ' Milli~ml,' the term, 213. Manganese Ore Bed, 9, 10, 20, 27, 30; Mw.T.O~, J. O'N., on plant spores, 294-5. petrology of, 32-3. Minnesota, alteration of Ely greenstone Mansfield Marine Band, Iv, lxiv, lxviii in, 420-1, fig., 424-5. et sqq., Ixxxv. Miocene peneplain, E. Africa, 348, Manx slate, chem. anals, of, 429. 351-2, 353-4, 356, 358 e~ s~/. Manyara, Lake (E. Africa), 342, 350, 359. M~a~5"ppi Delta, 239. M~RoERr~, E. D~., receives Wollaston Mississippian & Pennsylvanian, division Medal, xxix-xxxi; obit. of L. CAY- of Carboniferous into, xlix-l. ~.ux, xxxvii-xxxix; on three stages Mlanje Mts. (Nyasaland), 357. in the evolution of Alpine geology: MochragI. (Merioneth), 4, 6. D~. SAVSSUB~.-STUD~B-HEru, xcvii- Modiola minima, 450-1, pl. xxvi. CXiV. Modiolaris Zone, Anthracosla & Lingula Marginulina, 447 et sqq. in, ixlll; marine bands of, lxix, lxxii- soluta (~), 451-2, pL xxviii. l~iv. Marine bands in Coal Measures succes- Moel Goedog East & West Faults sion, lv-lvi, lxviii-lxxv. (Merioneth), 21. Marmorkap (Siberia), alteration of ande- Moelfre Fault (Merioneth), 20, 21. site at, 421, fig., 424-5. Mohorovi~id discontinuity, 234. Marshall Bay formation (Cambrian), Moine Schists, of the Great Glen fault- Greenland, 305, 308. line, 47, 50, 51 ; metamorphic zones Martite.quartzite, Mt. Wilga, 121-2. of, 57-61, map. Massilina, 82, 83. Moine Thrust-plane, Great Glen dislo- MaTm~, M. (& F. WAL~), on the cation &, 48, 49, maps, 63-4. petrology of two granite-slate con- Mona Complex rocks on Sam Badrig, 6. tacts at Cape Town, South Africa, Moor of Rannoch Granite, 57. 499-518, figs., pls. xxxv, xx~vi. Moon, L. R., on the spores of some MA~Y, C. A. (& T. S. WILSON), on the CarbOniferous plants; their develop- Harlech Dome, north of the Bar. ment, 251-90, figs., pls. xvi-xvifi, mouth estuary, 1-35, figs. pls. i & ii, 297-8. 39-40. Morfa Dyffryn & Morfa Harlech (Mer- Maudlin Seam, lix. ioneth), Quaternary platform at, 3. Mawddach estuary (Merioneth), sect. to Morganian (Upper Westphallan), Ii e~ sq~/. Llanaber, 9; M. Valley, 16. MORRIS, F. M., on plant spores, 292-3. Mbaya (E. Afr.), 346, 349. Mosquito Creek Series, W. Australia, 116. McLn~TOC~, W. F. P., 248. Mr. Margaret Goldfield (W. Austr.), 117, Medals (& Funds), awards announced, 119, 121, 134, 135 map; see a~so iv ; presented, xxix-x~vi. Laverton d~ Korong. Meier's Find (Mr. Palmer), 124, 125 map, Mr. Palmer (W. Austr.), ferruginous 129, 131. metamorphosed jasper bars of, 124-7, ME~-ESZ, F. A. V~.~rn~G, referred to, map, fig., 128 fig., 130 map, 131-4, 215-6, 230, 232, 235, 242. ~g. Mekong Delta, gravity anomalies in, 239. Mr. Richardson (W. Austr.), banded _Mesograptus multidens zone, 184. ferruginous chert from, 128 fig. Metamorphic zones of Highlands, Great Mr. Wilga (W. Austr.),banded ironstones Glen & related faults &, 56-7, 58-61, of, 120 map, 121, 123. map. Mt. Windarra (W. Austr.), 126 map, Metamorphism of jasper bars of W. magnetite-grunerite-cluartzites of, Australia, 147-51 ; of Belhelvie rocks, 127-8. 493-5, fig. Muddy sediments, compaction of, 209- Metamorphosed ferruginous jasper bars, 10. 124-34, figs. maps. Mudstones, of the Harlech Dome, Microcline porphyroblast in pegmatite of petrology of, 32. Bantry Bay, 505-6; chem. anal. of, Mull, I. of, 43, 47; 59, 63; map of, 517. showing position of Great Glen Fault Microconchus, the name, l~iil. below Tertiary lavas, 65. Migmatites, Sutherland, 404-5, fig., Mundurno (Aberdeenshire), quartz-bio- 406-7; of Cape Town, 500 et sqq., tite-norite of, 484-5. 507-8, 513-4, 516; chem. anals. 517. MuncHies, R. I., letters &c. of, pre- Migmatization, in Cape Town rocks, sented, vii. 502, 511-3, fig. Murchison Goldfield (W. Austr.). See Mikaszewicze (Poland), 190. Tuckanarra. MILES, k. R., on the metamorphism of MURCmSON MEDAL presented to L. part 4] GENERAL ~DEX 531

HAWXES, XXXl--XXXii; M. FUND pre- Older Greenstone Series, W. Australia, sented to A. WooD, xxxiv-xxxv. 116, 117; anals, of jasper bars from, Murch@onia(?), 448, 450, 451. 139. Mylonite, formation along dislocations, Olenellid fragment, 310, pl. xix. 55. Olenoides ? fallax sp. nov., 319, pl. xx. Mzimba surface, Nyasaland-N. Rhodesia, Olivine, in ultrabasic rocks of Belhelvie, 344 fig., 345 fig. 467-8. Olivine-gabbros, Belhelvie complex, 467 Naiadites, the name, lxiii footnote; et sqq., 474-5 anals., 476-7, 480-1 cert. & horiz, distribn of, lxiv et sqq., anals., 482, pls. xxxi, xxxii, xxxiii. lxvi fig. Opencast coal in Great Britain, ii-iii. Namurian, of E. Poland, 195; position Ophthalmidium, nomenclature, varia- in Carboniferous, l, li. tion & evolution in, 77-113, figs., Nandi scarp (Kenya), 341. pls. iv-x; type specimen of, 461-3, Nannine (W. Austr.), chem. anal. of pls. xxix, xxx. banded haematite-quartzite from, 141. carinatum, 462-3, pls. xxix, xxx. Natron, Lake (E. Africa), 342, 350, 359. --liasicum, 80, 81, 84-5, fig., 113, Nemagraptus gracilis, 179, 180; N.g. 461-2, pls. xxix, xxx. zone, 159, 179, 180, 184, 185. macfadyeni sp. nov., 92-3, 101-2, Neptun marine band, lxxi, lxxxi. pl. ix. l~ess, Loch (Scotland), 45 footnote, 46 northamptonensis sp. nov., 88-90, et sqq. 95-101, figs., 104-6, 462, pls. v-viii, Netherlands East Indies, gravity observa- XXiX. tions in, 215-6, 230, 232, 235, 238, -- nubeculariformis, 90-I, figs. 241, 242. porosum, 81. Nevoria (W. Austr.), 128. tumidulum, 81. Newry complex (Ireland), granitization --walfordi, 82, 91-2, fig. processes in rocks of, 401-2, figs., --of O. walfordi type, in protero- 406-7, 410-1, 435. genetic evolution, 103 fig., 104. Ngorongoro (Tanganyika), 359. Ordovician, of Builth area, 157 et sqq. ; Nile, alined along strike of ancient O. & Cambrian fossils from Ellesmere structures, 342 ;~ N. Delta, 239. Land, 299-337, pls. xix-xxiv. N~be brevicauda, 332, pl. xxiii. Ore-bed Shales (Manganese Group), of N4veau matin de Rimbert, lxxi, Ixxvi. the Harlech Dome, 5, 9-10, 20, 21. Nodosaria, 447, 451 et sqq. Orijarvi area (Finland), desilication of Nord coalfield, Upper Carb. of comp. w. leptites in, 406-7, 408, fig., 435. that of Saar, Ixxxiii fig. Orthoceras limestone, Ellesmere Land, Norite of Tr4gastel-Ploumanae'h, granit- 331. ization of, 422-3, fig., 424-5, 430-1; Ostracod horizon (Ordovician), Green- of Belhelvie complex, 472-6, 484-5. land, 303, 308. Northern Rift Zone, E. Africa, 353-65, Ottweiler Beds, lxxxiii. figs. Ovalis Zone, lii. Nubecularia, 82; ' N' of N. tibia type, Overseal Marine Bed, Ixx. in proterogenetic evolution, 103 fig., OvEY, C. D., on supposed Cambrian 104. foraminifera, 457-8, 459-60. Nullagine Formation, W. Australia, 116, Ovruch sandstones, Poland, 191. 117. Oxford University Ellesmere Land Ex- Nunatami formation (Ordovician), pedition, Cambro-Ordovician fossils Greenland, 303, 304, 306-7, 308, 332. collected by, 299-337, pls. xix-xxiv. Nuneaton Marine Bed, lxx. NUTTAT~T., W. L. F., 110-1. Paedeumias ? borealis sp. nov., 309-10, Nyasa, Lake (E. Aft.), 341 et sqq., 348 pl. xix. et sqq. ; Cretaceous coastal peneplain Palaeostachya sp., spores from, 269 fig., of, 344 fig., 345 fig. 270-1. Nyasa Rift, 340, 342, 343-6, figs., 347, Palaeozoic (Lr), of E. Poland & W. 351 et sqq. ; sect. across, 345 fig. Russia, 192-4. Nyika plateau (Nyasaland), late Jurassic Pangani Valley (Tanganyika), 348, 351, peneplain of, 344 fig., 345 fig. 359 et sqq. Paralie coal basins, lii et sqq.; of N. ' Obolella(?) Salteri ? ' of Groom 1902, Europe, lxxviii-lxxxii, fig. 448, 449, 450, pl. xxvi. Parallelism of felspar grains in banded Oculina, 80. Belhelvie rocks, 487-8, fig. ~liasica, 80. Parker's Range (W. Austr.), 128. OD~TX., N. E., on granitization, 441-2. PEACH, B. (& J. HORNE), quoted, 59. Officers (& Council) elected, x. Pegrnatite in granite of Cape Town, Old Red Sandstone of the Great Glen, 505-6; chem. anal., 517. 45, 50 et sqq. Pelitic (& semi-pelitic) rocks, recta- 532 GENERAL INDEX [vol. cii,

somatic alteration of by granite PRUVOST, P., referred to, liii, lvii fig., ' magma ', 391-2, 393-409, figs. lix. Pemmican River formation, Greenland, Psammitic rocks associated with granite, 306. metasomatic alteration of, 392, 409- Pen-ddol Rocks (Radnorshire), 158, 159, 13, fig. 163. Ptychocarpus uni~us, spores from, 256, Peneplains of E. Africa, .Miocene, 348, 257 fig., 258. 351-2, 353-4, 356 et sqq. ; late Juras- Puo~, W. J. (& O. T. Jo~-~s), on the sic, 368-75. complex intrusion of Weliield, near Peneroplis, 82. Builth Wells, Radnorshire, 157-87, Penmaenau Rocks (Radnorshire), 163 figs., pl. xiii (geol. map). et sqq.; sect. across, 169, 170 fig., P~LFREr, W., on East African Rift 176 fig., 177. System, 387; Lyell Fund awarded to, Pennsylvanian, cyclic deposition of, rx:~v. lvii fig., lix-lx; P. of 1~. America, Pyroxene in meta-jaspilite of Yilgarn lxxxiv-xc, figs; division of Carbon- Goldfield, 131 ; ps. in ultrabasie rocks iferous into P. & Mississippian, xlix-1. of Belhelvie, 468, 469 et aqq., pl. Penrhos Shales (Cambrian), of the Har- leeh Dome, 3, 5, 15-16, 21. Pyroxenite, Belhelvie complex, 469, 470, Peridotite, Belhelvie complex, 469-70, 474, 475, chem. anal. 470-1. Petigurus sp., 327-8, pl. xxiii. Quaregnon marine band, lxxlii. Petit Buisson band, lxxi, lxxv, lxxvi. Quartz-biotite-norite of Mundurno, 484- Phacolith, Welfield Ridge as, 173. 5, pl. xxxi. PKEMISTE~, J., 248-9, 74-5 Quartz veins, ttarlech Dome, 26-7. PhyUograptus sp., 320. Quartzite, Bushveld complex, felspath- Plagioelase, in Welfield dolerites, 161 ization of, 409-10. et sqq. Qu6rigut-Mfllas (Pyrenees), alteration of Plants, Carboniferous, spores of, 251-98, limestone at, 416. figs. p~.. x~-xv~i. Quinns (W. Austr.), chem. anal. of Pliocene erosion surface, E. Africa, 350, haematite-quartzite from, 141. 353, 355, 359, 361 et sqq. Quir~culi,a, 82. Pliamerops sp., 328, pl. xxiii. Podolia, Lr Palaeozoic of, 192, 193; Radley, E. O., obit., xliii-xliv. Devonian of, 194. Radstockian, li. ido/sson/~re marine band, lxxiii, Ixxvi. RAxsn% CATm~Rnr~, obit., xliv-xlv. Poland (E.), & W. Russia, structure of, R~x~, A. O., 247. 189-201, figs., pl. xiv [maps]. Raphistomena latiumbilicata, 323. Polesie Groups, Poland, 191. Rapikivi granite, Poland, 191. Police Post (Bache Peninsula), 300-1,305. RAST~, R. H., Lyell Medal awarded POT.r.AV~D, W., obit., xliii. to, ~xii-xxxiv. Polytoecia borealis sp. nov., 320-1, pls. Ravanieze (W. Russia), 193, 194. xx, xxi. RAw, F., 37. muIticamerata sp. nov., 321-2, pls. READ, H. H., 73, 496-7; on the gee. xxi, xxii. chemistry of granitization, 438 ; reads horizon, Ellesmere Land, 303. paper by F. WAr.~a & M. MATHIaS, Pomatotrema semiconvexum, 322. 499 ; discusses same, 520-1. Portronan (Co. Donegal), felsPathized ' Recapitulation,' the theory, 78, 83; quartzite of, 411, 414-5. in the Foraminifera, 103-6, figs. Potash enrichment of Cape Town granite, Red River (Tongking) delta, 239. 513-4. RF~D, F. R. C., obit., xlv-xlvi. POULS~.~, C., notes on Cambro-Ordo- Re~phax, 457. vician fossils collected by the Oxford REY~OLOS, D. L., on the sequence of University Ellesmere Land Expedi- geochemical changes leading to granit- tion 1934-5, 299-335, pls. xix-xxiv. ization, 389-438, figs., 440-1,442-3. I>~TT hypothesis of isostasy, 214-6, Rhaetic (or Lr Liassic) age of Malvern fig., 231. foraminifera, 450-3. Pre-Cambrian, of E. Poland & W. Russia, Rhinog Fawr (Merioneth), 3, 4, 9. 190-2; P.-C. basement of the Har- Rhinog Grits (Cambrian), of the Harlech lech Dome, 6-7; P.-C. banded iron- Dome, 3, 5 et sqq. ; correlated with stones, 145. Hartshill Quartzite, 27. Prehnite, in Welfield dolerites, 162. Rhizophora, liv. P~n~oL~, J., 39. Riddarhyttan (Sweden), desilication of Pripet Marshes, 193, 194; granitic block leptites at, 408. under, 190, 192. Riebeckite, in W. Australian jaspers, 117. ' Proterogenesis ', the theory, 77-8 ; in ' Rift,' defined, 340-1. the Foraminifera, 103-6, figs. Rift System of East Africa, erosion & part 4] GENERAL INDEX 533

tectonics in, 339-88, figs., pl. xxv Shillong Plateau (Assam), 222, 223. [maps]. Shire Rift (E. Aft.), 342, 343, 351, 352, Rifting, theories of, 360-5, figs. 365, 367, 368, 375. Rifts, post-Tertiary, Karroo troughs & SHOTTO~r F. W., on geological work in basins &, 365-8. the invasion of NW. Europe, v. Ringers, in ' Lingula Flags ', 3 ; in Vigra Sicillariostrobus rhombibracteatus, spores Flags, 14-5; uncleared, 22; petro- from, 266, 267 fig., 268, pl. xvii. logy of, 32 ; source of materials of, 34. Silica-glass, formed by atomic bomb Rock densities at surface & depth, explosion, v. measurement of, 219-20. Siliceous jasper bars, W. Australia, Ruaha trough (E. Afr.), 346, 348 et 122-3, 134-5, geol. map. sqq. ; R. scarp, 346. Sills, in Harleeh Dome, 23-4, 25. Ruanda (Tanganyika Terr.), 348, 356. Silurian, of Builth area, 157-8, 160, 163, Ruarwe fault, Nyasa, 345 fig., 352. 171. Ruchuru basin (E. Aft.), 345, 362. Simills-Pulchra Zone, marine bands of, Rudha na h-Earba (Loch Linnhe), 51, lxix, lxxiv. 67. ' Sinistral' & 'dextral' faults, the Rudolf, Lake (E. Afr.), 341, 342, 353, terms, 57. 354, 358 et sqq. Skarn, development in limestones, 414, Rukwa, Lake (E. Afr.), 342, 349, 355; 432. R. Rift, 342 et eqq. S~Em~rO~, A. W., on the compressi- Rungwe (E. Afr.), 346, 350. bility of clays, 206-9, fig. Russia (W.), & E. Poland, structure of, Skipsey's Marine Band, lxix, lxx. 189-201, figs., pI. xiv [maps]. Slate-granite contacts at Cape Town, Ruwenzori (Uganda), 342, 346, 355, 499-521, figs., pls. xxxvi, xxxvii. 356-7, 361, 363, 365, 366-7. SLATER, L., on plant spores, 293-4. Slopes, topographic, simulating tee- Saar Basin, lxxxii, lxxxiv; Upper Carb. tonic, 351-2. of compared with that of Nord coal- SOLOMO~r, J. D., on rifting in Uganda, field, lxxxiii fig. 379-80. Saarbruck Beds, lxxxiii. Southern Cross (W. Austr.), meta- San Andreas (California) fault-zone, jaspilites from, 128, 129-30, fig. 131; Great Glen Fault compared with, 45, chem. anals, of jasper bars from, 140, 54, 55. 141, 142. SA~DFORD, K. S., 336, 383-4, 458. SFE~CER, L. J., exhib, silica-glass from Sao Hill (Tanganyika Terr.), 348, 349. atomic bomb explosion, v. Sam Badrig (Merioneth), 4, 6-7. Spessartite, in garnet of Harlech Dome SCH~I, P~.~, his Cambro-Ordovician fos- rocks, 33; the term, 36. sils from Bathe Peninsula, 300 et sqq., Sphene, in Welfield dolerites, 162. 330-2, pl. xxiii. Sphenophyllostachys cf. majus, spores Scoresby Bay (Greenland), 304, 307. from, 271-2, fig. Sea Point (Cape Town), 500 et sqq.; Sphenopteris sp., spores from, 259, 260 map of contact at, 503. fig., pl. xvii. SEDGWXCK, A., referred to, 4. SpiriUina, 447 et sqq. Sedimentary rocks, effect on gravity, -groomi, 451 et sqq. pls. xxvii,

216-7, 218-9. XXVlll Sedimentary theory of genesis of jasper infima, 452-3, pl. xxvii. bars, 143-5. Spiroloculina, 79-94, figs., pls. iv-x, Sediments, muddy, compaction of, 209- 103-4, fig. 10. africana, 80, 82. Serniiki Valley (E. Aft.), 361 et 8qq. -depressa, 80, 82-3, pl. iv. Senftenbergla [Dactylotheca ] plumosa, excavata, 82. spores from, 256, 257 fig., pl. xvii. inopinata sp. nov., 93-4, pl. x; Serpentine, Belhelvie, 469 ct sqq. variation in, 102. Serpentinization of rocks of Belhelvie Spirophthalmidium, 81 et sqq. complex, 479. -- acutimargo, 84, 86, pl. iv. SHACKL~.TO~, R. M., 497-8, 520; on --in proterogenetic evolution, 103 the Rift System in Kenya, 381-2. fig., 104. SH~Lg_ESP~.AR, Dame E. M. R., obit., Spi~orbis, lxiii, lxv. xlvi-xlvii. 'Sporangia ', 274-6, pls. xvii & xviii; Shan Plateau (Burma), 222, 223 fig., 224. spores from, 276-9, figs., pl. xvii. Shap granite, granitization of audesitie Spores, plant, preparation & macera- inclusions in, 421-2, fig., 424-5. tion of specimens, 254-5 ; descriptions Shear, mechanical interpretation of of, 256-81, figs., pls. xvii & xviii; Gleat Glen, 68, 69 map. development of, 281-4; classification Shear-zone theory of genesis of jasper of, 286-8. bars, 143-5. cs Spyroceras, 324, pl. xxii. 534 GENICRAL INDEX [vol. cii,

Staffordian, li. T6rnquist's line of demarcation between Stavanger (Norway), desilication of E. & W. Europe, 198, 199, 201. chlorite-schist of, 405, 406-7, 408, fig., TOMLn~SO~, T. S., on plant spores, 293. 410-1. Toodyay (W. Austr.), 128. Stephanian, li ; position in Coal Measures, Traeth Bach (Merioneth), 3, 4, 16, 18; lxxvii-lxxviii. T.B. Syneline, 21. STEW~aT, F. H., on the gabbroic com- Trawsfynydd (Merioneth), 3, 7, 11, 13, plex of Belhelvie in Aberdeenshire, 18; T. Fault, 10, 16, 19, 21 et sqq. 465-96, figs., pls. xxxi-xx~xiii, 498. Tm~C~A~-N, C. T., 154. Stinking Coal, lxxii. Tr6gastel-Plouman-c'h (Brittany), grani- Strath Glass Fault, 56, 57. tization of norite at, 422-3, fig., Strath Ossian Granite, 57. 424-5; inclusions in granite of, Strathconan Fault, 55 et sgg. 430-1, fig. Strontian Granite, 45, 47, 51 et sqq.; Trilobite~176 gen. & spp. indet., 328-9, pl. & Foyers Granite, as evidence of dis- placement of Great Glen Fault, 60, Troctolite, Belhelvie complex, 466 et sqq., 61-2, map, 63. 471-2, 474, 475, chem. anal., 478-9. STUBBLES, C. J., 37; on the Cam- pls. xxxi, xxxiii. bro-Ordovician of Ellesmere Land, T~OT~z~, F. M., 293. 335-6. T~U~w, A. E., 246, 335, 456; on STUD~.It, B., his work on Alpine geology, Ophthalmidium, 109-10; on plant ci-civ. spores, 290-1 ; addresses to medallists Sudan, Rift System in, 354-5, 357. & recipients of funds, xxlx et sqq. ; SuJxowsxI, ZB., on the geological struc- on stratigraphical problems in the ture of East Poland and West Russia : Coal Measures of Europe and North a summary of recent discoveries, America [Anniversary Address], xlix- 189-201, figs. pl. xiv [map]. xciii, figs., pl. A. Sulphur Coal, lxxii. Tuckanarra (W. Austr.), glaucophane- Surma Valley (Burma), 227. aegirine - augite - magnetite - quartzite Sutherland, migmatites of, 404-5, fig., from, 132-3; chem. anal. of banded 4O6-7. haematite-quartzite from, 141. S~RTO~, H. It., 201; on Ophthal. Tyn-y-groes (Merioneth), 11, 14 e~ ~/q. midium, 110. Syenite, Cnoe nan Cuilean, 411-3, fig., Ubwari (Tanganyika Territory), 346, 349. 414-5. Uganda Rift, formation of, 362-5, figs. Ukraine, granitic block of, 190-1, 192, Table Mountain Sandstone, 502, 506. 194. Table Rocks Sandstone, lix. Upper Manganese Shales (Manganese Talsarnau (Merioneth), sect. to Moel Group), of the Harlech Dome, 5, Oernant, 17. 10-1. Tanganyika, Lake, 342, 343, 349 et Uralitization of rocks of Belhelvie com- sqq. plex, 477-8, 482-4. Tanganyika Rift, 340 et sqq. ; T. trough, Urundi (Tanganyika Terr.), 348, 356; 346-51. U. scarp, 346. Tanganyika Territory, Rift System in, 342, 343, 346-51. V~ STRA~LEN, V., 111. TAYLor, J. H. See HOLLINGWORTH, Veins, basic, of Belhelvie complex, 485. S.E. Vermilion Iron District (Lake Superior): T~.AI~, E. O., 154; on the East African 119. Rift System, 380-1. Victor Harbour (S. Austr.), granite of, Tectonic associations of Great Glen 404, 406-7, 410-1. Fault, 55-7, map. Victoria, Lake & basin (E. Africa), 342 Tectonics & eromon in East African et ~/q.; eomp. w. other African Rift System, 339-88, figs., pl. xxv basins, 365. [maps]. Vigra Flags (Cambrian), of the Harlech Tensional hypothesis of rifting, 362-3, fig. Dome, 3, 5, 14-5, 19, 20 et sqq. Tertiary structures of E. & W. Europe, Vipya area (Nyasaland), sects, across, connexion of, 196-7, fig. showg erosion surfaces, 344 fig. T~G~, K., discusses large-scale super- Volhyn group (Archaean), Poland, 191. ficial structures in Northampton Iron- VolhyDia, Lr Palaeozoic of, 192, 193; stone Field, 203-4; on the compressi- Devonian of, 194. bility of clays, 205-6; on the com- Voronezh granitic block, 190-1, 192. paction of muddy sediments, 209. Thick Coal, Staffs., lxi. Wainlode Cliff (Glos.), 452, 453. THOMAS, It. It., on plant spores, 291. WALFORD, E. A., his foraminiferal clay T~y, C. E., 154-5; on granite-slate samples from the Lias of Byfield, 77, contacts in Cape Town, 519-20. 79. part 4] GENERAL INDEX 535

WALU~R, 1~. (& M. MATHIXS), on the Wiluna (W. Austr.), magnetite-grunerite- petrology of two granite-slate con- quartzite of, 128 fig. tacts at Cape Town, South Africa, WOLLASTOI~" MEDAL presented to E. DE 499-518, figs., pls. xxxv, xxxvi. MA~GE~n~, xxix--xxxi ; W. Fund pre- W~LIS, C. B., obit., xlvii-xlviii. sented to J. L. B~.~o, xxxiv. WALTEr, R. C. S., on water from the WOOD, A., on Ophthalmidium: a study Barber Booth well, 210. of nomenclature, variation, and evolu- Warren House Coal, thickness variations tion in the Foraminifera, 77-109, figs. in, lviii, fig. pls. iv-x, 111-2, 112-3; on the sup- Warriedar (W. Austr.), chem. anal. of posed Cambrian foraminifera from the banded haematite-chert from, 141. Malverns, 447-56, fig., pls. xxvi- Water, Barber Booth Well, 210. xxviii, 459, 460 ; on the type specimen W~.BB, J. S., 438-9. of the genus Ophthalmidium, 461-3, Weld Range (W. Austr.), chem. anal. pls. xxix, xxx; receives Murchison of red jaspilite from, 141. Fund, xxxiv-xxxv. Welfield (Radnorshire), dolerite intru- WOODLAND, A. W., 36-7; on the sions at, 157-87, figs. pl. xiii. petrology of the sediments of the Welfield Ridge, 180; dolerites of, 161-3, Harlech Dome, 29-34. 164-70, figs., 182-5 figs. ; sects. WOODS, H., obit. of F. R. C. REED, across, 165, 170, figs.; structure & xlv--xlvi. origin of, 171-8, figs.; laccolith of, WoamE, J. M., obit. of C. B. W~m, 173-8, figs., 186-7 fig. xlvii-xlviii. Welfield Rocks, 163, 164; sects, across, Wrench-fault, Great Glen Fault as, 53 169, 170 fig., 176 fig., 177. et sqq., 68-70, map. Welfield Rocks Fault, 164 et sqq. WRIGHT, C. W., 201. Welfield Wood, 167, 168, 175. Wulff River formation {Cambrian), WELLS, A. K., on the Harlech Dome, Greenland, 301, 305, 307, 308. 35-6; on the Cambro-Ordovician of Wye, R. {Wales), 157 et sqq. ; dolerites Ellesmere Land, 336; on the granite- of, 178-82, figs., 182-5, figs.; sects. slate contacts at Cape Town, 518-9. along, 180, 181 figs., 182. Welsh Vein, lv. Western Australia, jasper bars of, 115- Xenoliths in granitic rocks, identifica- 55, figs., pls. xi & xii. tion of parentage, 427-32, figs.; in Western Rift (E. Africa), 342, 845, 352 granite of Cape Town, 501, 504, et sqq. 508-9, 513; basification of, 514-5; Westphalian, position in Carboniferous, optical &c. data, 516; chem. anals., 1, li; subdivision of, lii; boundary 517. between Stephanian &, lxxvii-lxxviii; palaeogeography of, lxxxvi fig., lxxxix Y Garn (Merioneth), 10, 11. fig. Yampi Sound (W. Austr.) iron ores White Leaved Oak (Malverns), 447, 448, comp. with those of Mt. Wilga, 449 fig. 121. Whitestone Series, W. Australia, 116. Yilgarn Goldfield (W. Austr.), 116; WILLIAM SMITH Lecture, establishment see also Mt. Palmer &c. of, i-ii, vii. Wmso~, G., 439. Zambezi basin, relation of post-Tertiary WILSON, T. S. (• C. A. ~/~ATLEY) On the rifts to Karroo structures of, 343-6, Harlech Dome, north of the Barmouth 365-8; Z. trough {Africa), 343-6; estuary, 1-35, figs. pls. i & ii, 37. Z. Valley (Africa), 341, 343.