GENERAL INDEX TO VOLUME LXXXIX

Aber (Carnarvonsh.), iron-ore ool- Andalusite-granulite, Marcapata ites of, 404, 406, 407, 410, 413. Valley, 321-2. Abergwesyn-Ptunpsaint area, geol. Andalusite-hornfels & a.-phyllite, of, 172-201. Socapata Valley, 321, pl. xxvii. Accounts & Estimates, xl-liii. Andesite, E. Jersey, 278-81, Acrotreta cf. sabrinve, 365. 289, 290, pls. xxiv & xxv. Actinolite in Rhayader-Llansawel Angeltown (Glare.), 254 et sqq. grits, 214. Anne Port (Jersey), 282, 284, 285, Adelaide (S. Austr.), Pre-Cam- 287. brian ?organic bodies fr., vi. A~rNISS, L. G., on the Upper Afon Alun (Glare.), 225, 266. Devonian Rocks of the Chud- Afon Dyffryn (Merioneth), 146 leigh area, South Devon, 431- et sqq. 47, figs., pl. xli. Afon Gwril (Merioneth), 146 et Annual Contributions, amend- sqq. ; Basement group in valley ments to Bye-laws concerning, of, 155 fig., 157; Cefn I-Iir 111. Ashes in valley of, 161. Annual Report of Council, xiii-liii. Agglomerate (Bifidus beds), Anoptychia Koken, 106-7. Beacon Hill, 160-1. ?impendens, 107-8, pl. ix. Agnostus calvus, 366, pl. xxxiv. Ansell's Brewery (Birmingham), Akidograptus acuminatus zone, boring at, 64. Abergwesyn-Pumpsaint area, Antarctic mainland, geol. & glaci- 176, 178-9, 197. ation of, cxiii, cxiv-cxv. Aldridge (Staffs.), 67, 68, 78. Anticlines, Kramat Pulai, 462-4, ALLISON, A., on the Dalradian figs. Succession in Islay and Jura, Aplite intrusive mass, Kramat 125-42, figs., pls. xiii & xiv, 144. Pulai, 451 et sqq.; apl. veins Alluvium of Huayllumbe area, in rocks of same area, 458, 336-9, fig.; of Quitari area, 459, 466, 467, 474-5, fig. 341-2 ; of Kramat Pulai, 451. Appleton-le-Street (Yorks.), 488, Alt an Dainh (Islay), 140 fig. 489, 493, 498 ; sect'n in Corallian Amazon plains, E. Peru, 329-46. at, 490-1. Amotherby (Yorks.), 491,492, 498, Araza R. (Peru), 313. 502. Arenig series, Fairbourne-Llwyn- Amphibolite veins in gneiss, Mar- gwril distr., 147,154-60 ; centres capata Valley, 327, 328, pl. of A. vulcanicity, 160, 168. xxvii. Argentina, Paganzo system in, Amplexograptus perexcavatus var., lxxxiii-lxxxv. 352, pl. xxxiii. ARKEL~, W. J., on the Corallian Amsterdam I. (Subantarctic), c xiii. of Yorks., 507-8. Analyses, chemical, of Kramat Asaphellus sp., 154. Pulai schists, 455; of olivine- Asaphus sp. indet., 345. basalt, 5 ; of phonolitic trachyte, Asham Wood & ravine (), 8 ; of rhyolitic oligoclase-por- 23 et sqq., fig. See also Heale phyry, 383 ; of Welsh oolitic Ladder. neon ores, 420-4 ; micrometric, ASHCROFT, F. N., elected Trea- of muscovite-granite pebbles, surer, xxx. 211 ; quantitative, of rock Ashes, of Beacon Hill Acid types in Birmingham borings, group, 159. See also Cefn IIir 56; of rock types in the Ashes. Clent beds of the Birmingham (Somerset), 17. area, 77-8. Auditors elected, vi. 51 1 512 GEN~ERAL INDEX [vol. lxxxix,

Ausangate, Mt. (Peru), 309, 316. Bettws Garmon (Carnarvon), iron- Australia, base of Gondwana ore oolites of, 404, 406 et sqq., system in, lxxix-lxxxii. 418. Avonian series in E. Mendips, Bifidus Slates, Fairbourne-Llwyn- faunal zones of, 15-16; succes- gwril distr., 147, 160-1. sion of, in the same area, 17-19. BIGSBY MEDAL awarded to E. J. WAYLAND, lix--lxi ; list of BABINOTON, WILLIAM, cxiii. recipients of, xxxvi. Baie du Cap (Mauritius), 4. Bilboa quarry (Vobster), 41-2. Baie du Grand Port (Mauritius), Biotite, in Rhayader-Llansawel 6. grits, 212. BAILEY, E. B., 143. Biotite-gneiss, Marcapata Valley, Bala conglomerates & grits, 325. Rhayader-Llansawel distr., 204-- Birdsall (Yorks.), 481,503. 17 ; B. series in the Abergwesyn- Birkhill series of Abergwesyn- Pumpsaint area, 175, 177, 196- Pumpsaint area, 175, 176, 178- 7; the same comp. w. other 87, 189-92; comp. w. other Welsh areas, 194-5. See also Welsh areas, 195-6 ; conditions Ceiswyn beds. of deposition of, 197-8. Banc Goleugoed (Carmarthen), 181, Birmingham distr., rocks betw. 191,192. Carb. & Trias in, 53-83. BARLOW-JAMESO~ Fund, list of Black Rocks (Glare.), 224, 234, recipients of, xxxvii. 240, 241, 262, 266, 267. Barr Beacon (Staffs.), Barr Beacon BLA~FORD, W. T., and the age Beds at, 66-7, fig. of the Talchir boulder-bed, Barr Beacon Beds, Birmingham lxv-lxviii. area, 65, 66-72, 74-5, figs., ' Bluestone,' Howardian Hills, pl. vi. 487 et sqq. BARROW, G., obit., lxxxvii-lxxxix. Bodden inlier (Somerset), 17. Barry (Glam.), 258. Bonahaven (Islay). See Portaskaig. Barton-le-Street (Yorks.), 493, Borings, Birmingham distr., 55- 498. 63, 64-5; nr. Coventry, 84. Basalt, Mauritius, 7; b. cappings BOSWELL, P. G. H., cx, 428--9; of Sandfell, 387 et sqq., fig.; elected Secretary, xxx ; on b.-traehyte association, 9-12. artificial current-bedding, 144. See also Olivine-basalt & Plat- Bottlehead springs (near Down- eau-basalt. head), 25. Basement group (Arenig), Fair- BOTTOMI~Y, Sir C., receives Bigsby bourne- distr., 147, Medal for E. J. WAYLAND, 154-8. lix-~i. Basic Volcanic group (Llandeilo), BOULE, M., Wollaston Medal Faith our ne-Llwyngwril distr., awarded to, liv-lv. 147, 162. Bouley Bay (Jersey), 285 et sqq. BATCHELOR, E., cxix. BOULTON, W. S., on the Rocks Beacon Hill (Merioneth), 146 et between the Carboniferous & sqq. ; Basement group on, 157-8. Trias in the Birmingham dis- Beacon Hill Acid group, Fair- trict, 53-83, figs., pls. v & vi, 86. bourne--Llwyngwril distr., 147, Brachiopoda ,(Llanvirnian) fr. the 158-60. Quitari area, 342-3 ; (Tremadoc) Beacon Hill (Somerset) pericline, fr. Tortworth, 365. 15 et sqq.; in relation to Breadstone (Glos.), 358, 360-1. Radstock coalfield, 18, 20, 30, Breadstone Shales, 358-60, 362; 46-9. fossils fr., 364-75. Beannan Dubh (Islay), 132-5. Breccia. See Clent, Hopwas, Bedlam (Somerset), 28. Nechells, & Northfield breccias, Bedrock, Huayllumbe area, 330- & Tuff-breccia. 6; Quitari area, 340-1. ' Br~ches porphyriques de Menar- Bellerophon app., 365-6, pl. xxxiv. Bieg,' 291, 292. Bellozanne Valley (Jersey), 280, ' Br~ches porphyritiques de Crech- 292. Choupo,' 291, 292. Beltvl~ depressa, 366-8, pl. xxxiv. Breconshire. See Abergwesyn. part 4] GENERAL INDEX 513

Bridgend (Glare.), 224, 251, 254, Caninia Oolite, Vale of Glamorgan, 258, 259. 225, 231, 235, 258, 259, 265; Brimley (Devon), 440, 443. lithology & fauna of, 237-9. Brittany, vole. rocks of, comp. w. Caninia zone. See C zone. those of Jersey, 291-2, 293. Cannock Chase (Staffs.), Barr Bronsil Shales, 362, 374. Beacon Beds on, 69-71. Brookite in Rhayader-Llansawel Carabaya, Cordillera de (Peru), grits, 213. 315, 316. B~OUGHTO~ EDGE, A. B., Lyell Carbon patches in scheelite-fluorite Fund awarded to, lxii-lxiii. ore, 470-1. BROW~, E. E. S., 307. Carboniferous, E. Peru, 314, 315; Bryn Brith beds, 160. rocks betw. Carb. & Trias in Bryn-caregog (Carmarthen), 188. Birmingham distr., 53-83. Bryn Poeth (Anglesey), 406, 407. Carboniferous Limestone of E. Bryn-tyrion (Merioneth), 157. Mendips, 15 ; C.L. succession Bryozoal limestone (K2) of E. in Vale of Glamorgan, 226- Mendips, 15-16, 23. 54. ' Biidesheimer Schiefer,' 436. Cardiff, Avonian of, comp. w. BVLMAN, 0. M. B., on the that of Vale of Glamorgan, graptolites ft. the Quitari area, 257 et sqq. 348-53, pl. xxxiii, 356. Cardiff-Cowbridge anticline, 221, Bunter beds, Windsor St. borings 261, 262. (Birmingham), 57-8 ; break Carmarthenshire. See Llansawel betw. Nechells Breccia &, 62; & Pumpsaint. source of fragments in, 62. Castle Howard (Yorks.), 481, Bunter Pebble Beds, Birmingham 488, 489, 493. area, 65 et sqq. Cawton (Yorks.), 487. Bustamite, Kramat Pulai Scheelite Cawton Heights, 493, 494-6. Mine, 458, 471-2. Cefn Hir Ashes & Slates, Fair- Bwlch-cefn-sarth (Carmarthen), bourne-Llwyngwril distr., 147, 179, 183, 191. 161-2. Bwlch-y-rhiw (Carmarthen), 179 Ceiswyn beds of Fairbourne- et sqq. Llwyngwril distr., 147, 164-5. Bye-laws, amendments to, iii-v, Cephalograptus cometa, 196. cxv-cxvi. Cephalopoda. (Llanvirnian) of Quitari area, 342. C zone, E. Mendips, 18 et sqq.; Cerig Gwynion grits, 204. in Tunscombe Bottom, 24-5, Chalk water-level under London, map; C1 beds in Vale of cxvi-cxxi. Glamorgan, 227, 231-9. Chamarel (Mauritius), 2, 7. C~ S 1 beds, Leigh-on-Mendip, 21; Chamosite in Welsh oolitic iron in Vale of Glamorgan, 227, ores, 419-20, 421-2, 423, 424. 239-43. Chantry (Somerset), 19, 20. Cadet Idris, 145 et sqq.; iron- Chantry fault, I6, 19, 23, 27, 28, ore oolites of, 403, 407 et sqq. ; 30. C.I. sequence comp. w. that of ' Cheiloceras Stufe,' 440-1. Fairbourne-Llwyngwril, 167-8. Chert, in Nechells Breccia, Birm- Caio (Carmarthen), 178, 179, 181, ingham, 60. See also Radio- 183, 187. larian cherts. Calcareous Conglomerate group, Chile Chile (Peru), 310 et sqq. Birmingham distr., 53, 60-1, Chimboya, Mr. (Peru), 309, 312, 62. 317, pl. xxx. Calcite in Rhayader-Llansawel Chlorite, in Rhayader-Llansawel grits, 214. .grits, 212-3; in Welsh oolitic Callangate, Mr. (Peru), 309, 316. iron ores, 403, 404-8, 419-20, Cancaahua (Peru), 314. 429, figs. Candleston (Glam.), 227 et sqq. 'Chloritic schist,' Mauritius, 1 Candleston anticline, 224, 225, et sqq. 230, 261 et sqq., pl. xxi. Chua Chua (E. Peru), 315. Candleston Oolite, 228, 229, 257, Chudleigh area" (Devon), Upper 260, 262, 266. Devonian of, 431-47. 514 OE~-ER~ INDEX [vol. lxxxix,

Chudleigh inlier, 433-4, 436, 441, Cowbridge-Cardiff anticline, 221, 444. 261,262. Chudleigh Rocks, 431, 435, 443, Cox, A. H., 170-1, 219. 444. Cox, L. R., exhibits mounted Clays, Huayllumbe area, 330, group of P..!icatostylus gregarius, 331. CXXII--CXXIll. Cleavage in rocks of Abergwesyn- Coxwold (Yorks.), 480, 486, 487, Pumpsaint area, 194. 489. Cleistopora zone. See K zone. Cranmore (Somerset), 17, 19. ' Clent Beds,' the name defined, 81. Cross Foxes (Cader Idris), 408, Clent Breccia, Birmingham area, 4O9, 418. 53, 54, 76, 77-8. Crozet Is. (Subantarctic), cxiii. Cloford (Somerset), 27. Crustacea (Tremadoe) fr. Tort- Clymenia limestone, Devon, 440. worth inlier, 370-3. ' Clymenien Kalk,' 436. Cryptograptus schdferi, 352. Coal Measures, E. Mendips, 15, .... var. /atus nov., 352-3, 17; relation to Vobster Avon- pl. xxxiii. ian inliers, 43-6. Cuboides limestone, S. Devon, Co~vrons (Brittany), 291, 293. 434-5, 442. Coldelm (Glos.), 361. Cu~s, C. G., 429; elected Audi- Colombi~re Point (Jersey), 278. tor, vi. ' Coloured earths,' Mauritius, 2. ' Curled bedding ' in Combapata Valley (Peru), 311, beds, 152. 315. Current-bedding, succession deter- Composition-fee, amendments to mined by, 125, 129 et sqq., Bye-laws concerning, iii-iv. pl. xiii. Coneysthorpo (Yorks.), 488. Cwm Bychain (Carnarvonsh.), 414. Conglomerates (Valentian) in Cyathaxonia horizon, Whatley, 33. Abergwesyn-Pumpsaint area, Cyfanedd (Merioneth), 158, 160, 181, 191, 192, 199; in Ceiswyn 166-7. beds, 165; Giffard Bay congl., Cyrena sT., 336, pl. xxviii. 278 ; Granville eongl., 293 ; (Arenig) near Hafotty, 154, D zone, E. Mendips, 16, 18, 21, 156; in E. Peru, 336-9, 34I; 26, 27, 28, 30, 31; in Vale of (Bala & Valentian) of Rhayader- Glamorgan, 226, 227, 246-54. Llansawel distr., 202-11,215-7 ; Dal I (Iceland), 383, 384. Rozel Congl., 278, 294, 296-7. Dal II (Iceland), 387. Contact-metamorphism in Kramat Dalradian succession in Islay & Pulai Scheelite Mine, 460-2. Jura, 125-42, figs., pls. xiii & Contact-metamorphosed rocks of xiv. E. Jersey, 289-91; of E. Peru, Daneswood fault (Somerset), 28, 320-1. 31. Conularia in Thuringian oolite DANIEL-PIDGEOl~.,. Award, xvi, nodules, 414. Xxxvnl. Coral Rag, Howardian Hills, Davidsonina [Cyrtlna] carbonaria, 492 et sqq.; fauna of, 497, 244-5. 499, 500; Glos Oolite age of, DAVIES, A. M., 507 ; elected 502. Auditor, vi. Corallian rocks of Howardian DAVIES, K. A., on the Geology Hills, 480-507, figs., pls. xlix of the Country between Aber- &l. gwesyn (Breconshire) and Pump- CorbicuIa sT., 336, pl. xxviii. saint (Carmarthenshire), 172- Cordierite-hornfels, Socapata Val- 201, figs.,pls, xvii& xviii; (& J. I. ley, 320-1, pl. xxvii. PI,ATT) on the Conglomerates & Cornelau (Glare.), 224, 247, 250. Grits of the Bala & Valentian Con'is (Merioneth), 194, 195. Rocks of the District between C6til Point (Jersey), 282, 284, Rhayader (Radnorshire) & 289, 294, 299. Llansawel (Carmarthenshire), Council, annual report of, xiii-liii ; 202-19, pl. xix, 220. elected, xxx. Dead Woman's Bottom (Somer- Coutances (Normandy), 301. set), 19, 23, 28. part 4] GENERAL INDEX 515

Denudation, E. & C. Mendips, 20. DU TOIT, A. L., Murehison Medal Devon. See Chudleigh. awarded to, lv-lvii. Devonian, E. Peru, 314, 315; Dyke-fissures, development of, (Upper) of Chudleigh area, Vnl--lX. 431-47. Dykes, E. Jersey, 294-6; Sand- DEWEY, H., on the Falling Water- fell, 384-5, 388-9. level in the Chalk under London, Dysynni R. (Merioneth), 145 et cxvi, cxxi. sqq. Dibunophyllum zone. See D zone. Dicellograptus, 163. Earth-movement, river-courses &, anceps zone, 195. CVlU.

-- sp., 350-1, pl. xxxiii. Earths. See ' Coloured earths' Dichograptid stipes, 350. East Cranmore (Somerset), 26. Dicranograptus shales, Haverford- Easthorpe (Yorks.), 487. west, 194. EASTWOOD, T., 86. Dictyonema flabelliforme zone, Ecr~hous-Paternosters reef, 299. Tortworth, 360, 374, 375. Edford (Somerset), 17. -- sociale, 154. EDWARDS, W. N., Lyell Fund sp., 365. awarded to, Ixiii. Didyrnograptus bifidus, 160 et sqq. Eifel goniatito zones correl, w. climacograptus, 349, pl. xxxiii. Upper Devonian of S. Devon, aft. euodus, 350, pl. xxxiii. 437-8, 439, 440-1, 442. murchisoni var. geminus, 349, Endoceratidse, 342, pl. xxix. pl. xxxiii. England (S.E.), subsidence in, stabilis, 349, pl. xxxiii. cv et sqq.

-- sp., 349-50, pl. xxxiii. Entomis shales, Devon, 435, 440, DIXON, E. E. L., 85, 508-9. 442, 443, 446. Doethie inlier, 175, 182, 186, Enville Beds, Birmingham distr., 193-4; map of, 185. 53, 54, 61 et sqq. Dolerite dykes, Sandfell, 384, Eoptychia gen. nov., 112-3. 388-9. caledoniensis sp. nov., 114, Dolerite intrusions, Fairbourne- pl. x. Llwyngwril distr., 165-6 ; Sand- -- sulcata, 113-4, pl. x. fell, 384, 388-9. tenuistriata, 115-6, pl. ix. Dolerites, Jersey, 294, 295. ventricosa sp. nov., 114-5, pl. Dolgelley beds, Fairbourne- X. Llwyngwril distr., 147, 153. Epidiorite, Chile Chile, 322. Dolomitie beds, Islay, 130, 135 Epidote, in Rhayader-Llansawel et sqq. grits, 214. Dolomitie Conglomerate, E. Essex, oscillatory earth-move- Mendips, 31 et sqq. ment in, cvii, cviii. Dolomitic Group, Islay, 129-30, Estimates & Accounts, xl-liii. 135-8. Eumorphoceras zone, South Dolphin inlier (Somerset), 37 , 256. et sqq. Ewenny (Glare.), 224, 231, 235, Dome of elevation, Sandfell, 380, 236; Ewenny Down, 224; 390-1, fig. ; theory of formation Ewenny R., 224-5. of, 393-7, fig. Eyri (Iceland), 382, 384. DOUOLAS, J. A., on the Geology of the Marcapata Valley in E. Fairbourne-Llwyngwril distr. Peru, with an appendix on the (Merioneth), geol. of, 145-70. Graptolites from the Quitari Famennian, Devon, 431, 435-41. Area, by O. M. B. BUL~KAN, Faskrudsfjord (Iceland), 379 et 308--55, figs., pls. xxvii--xxxiii. sqq. (Somerset), 19, 20, 23 Faulting, Abergwesyn-Pumpsaint et sqq.; D. fault, 16 et. sqq.; area, 194 ; Chudleigh area, 441- geol. map of D.-Heale area, 22. 6 ; E. Jersey, 298-9 ; Kramat Draen-llwyn-du (Carmarthen), 188, Pulai, 464-6, fig., 471, 473, 475 ; 189. E. Mendips, 17, 19-21, 23, 25, Drygarn conglomerate, 203, 204. 26, 28 ; Sandfell, 389-90 ; Vale DuPARc, L., obit., lxxxix. of Glamorgan, 264-8. 516 GENERAL INDEX [vol. lxxxix,

Faults, development of, vi-viii, Gamlan beds, Fairbourne-Llwyn- iX--X. gwril distr., 147, 150-1. FEARNSIDES, W. G., 377, 399, Gangamopteris flora, ago of, lxxii- 427-8; on the development of lxxv. faults, ix-x. Gareg Fawr (Carnarvon), 406. Fellows elected, ii, vi, xi, cv, cxi, Garnet, Kramat Pulai Seheelite cxvi, cxxii; deceased, resigned, Mine, 460, 461 chem. anal.: & removed, xxvii; names read in Rhayader-Llansawel grits, out, i, cxxii; number of, xiii. 214. Felspar in Rhayader-Llansawel GARWOOD, E. J., 51. grits, 212. 'Gas-streaming,' in generation of FERRAR, H. T., obit., lxxxix-xci. trachyte & phonolite, 1 l, 12. beds, Fairbourne-- Gastropods, Huayllumbe Red Llwyngwril distr., 147, 152. Beds, 334-6; (Tremadoc) fr. Ffordd Ddu (Merioneth), oolitic Tortworth inlier, 365-6. See iron ore at, 163, 164, 404, 420. also Loxonematid~e. Financial report, xiii-xv. ' Gattendorfia Stufe,' 439 et sqq. Flags of Basement group, Fair- General Electric Company, Bir- bourne-Llwyngwril distr., 156, mingham, boring at, 64-5. 157; grey ft. of Islay, 130, 135 GEORGE, T. N., 51; on the Car- et sqq. boniferous Limestone in the FLEET, W. F., 83, 430. West of the Vale of Glamorgan, FLETT, Sir J., cvi. 221-71, figs., pls. xx & xxi, FLEURXEU, M. DE, receives Wollas- 271-2. ton Medal for M. Boule, liv, Gephyroceras gerolsteinense, 437, Iv. 438 fig., pl. xli. Fleynsdal (Iceland), 381 fig. pernai, 437, 438 fig., pl. Flicquet Bay (Jersey), 297. xli. Fluorite-scheelite ore, Kramat Giffard Bay (Jersey), 278, 282, Pulai, 467-77, figs. 284, 295. Feel Llanfendigaid (Merioneth), GILBERT, C. J., cix---cx. 146, 152, 153. GILLIGA~, A., 508. Folding, Abergwesyn-Pumpsaint Gilling (Yorks.), 480, 487 et sqq.; area, 192-4, 198-9; Kramat see also Scar Wood; G. fault, Pulai Scheelite Mine, 462-4, 481. figs. ; E. Jersey, 297-8 ; Vale of Giur-bheinn (Islay), 136-7. Glamorgan, 261-4. Glacial horizon at base of Gond- Fordbury Water (Somerset), 33. wana system, lxiv-lxxxvi. Foreign Members & Correspond- Glaciation, E. Peru, 315-6, 337, ents, xiii, xxxi-xxxii. 339. Fort Regent (Jersey), 294. Glamorgan, Carboniferous Lime- Fractures in the earth's crust, stone of Vale of, 221-7 I. development of, vi-xi. Glos Oolite age of Coral Rag of Frankley Beeches Breccia, Bir- Yorks., 502. mingham distr., 76. Gloucestershire. See Tortworth. Frasnian (Lr.), Devon, 431,433-5; GLOYNE OUTDOOR GEOLOGICAL (Upper), 431,435-41. RESEARCH FUND, xvi; reports Fr6mont Point (Jersey), 287, 298, of grantees, xvii-xviii. 301. Glyptograptus dentatus mut., 351-2, Frome (Somerset), 15; Frome R., pl. xxxiii. 40. persculptus zone, Aber- gwesyn-Pumpsaint area, I76, 7 horizon, E. Mendips, 18, 19, 28, 177, 178, 195. 35; Vale of Glamorgan, 231-2. teretiusculus, 164. :vCI. See Standard Limestones. Gneiss, Mareapata Valley, 325, Gala series, Abergwesyn-Pump- 326, 328-9; amphibolite veins saint area, 175, 187-9; Berkhill in, 327 fig. series &, 189-91; comp. w. Golabgarh pass (Kashmir), lxxiii, other Welsh areas, 196; de- lxxiv-v. position of, 198-9. Gondwana system, glacial horizon Galena, Cyfanedd mine, 166-7. at base of, lxiv-lxxxvi. part 4] OW~R~ n~D~x 517

Goniatite beds of Lower Duns- Hamstead (nr. Birmingham). See combe, 436-8; g. zones of Tower Hill. Wedekind applied to Devon Harcombe (Devon), 431,433. rocks, 437 et sqq. series. See Gamlan beds. GORDON, W. T., elected Secretary, HASELDINE, J. F., cxix. XXX. HATCH, F. H., obit., xciv-xcvi. Gower (Glam.), Avonian sequence Hautes Croix (Jersey), 275. in, 227 et sqq. Havre de Fer (Jersey), 285. Graded bedding, succession deter- I-L~WKES, L. & H. K., on the Sand- mined by, 125, 130 et sqq., pl. fell Laccolith and 'Dome of xiii. Elevation', 379-98, figs., pls. Granite-aplite, Yanahurco R., xxxv-xxxix, 399-400. 342, pl. xxvii. HAWKINS, H. L., cviii. Granites, Jersey, 289, 290, 293-5; Heale (Somerset), 20, 22 map, 24 et Kramat Pulai, 451-2, 453, 460, sqq. ; H. Ladder, 20, 24 map, 466 fig.; E. Peru, 317-9, 320, 26-7. 326, 327. See also Muscovite- Heard I. (Subantaretic), cxiii. granite. Hemizyga Girty, 105. Granophyre intrusions, Fair- clathratula, 106, pl. xi. bourne-Llwyngwril distr., 165, Henry Mrs. laccoliths comp. w. 166; gr. pebbles in Rhayader- Sandfell, 379 et sqq. Llansawel conglomerates & grits, HERRIES, R. S., 507. 211. Hildenley (Yorks.), 494, 503. Granulite, Marcapata Valley, 326. ' Hildenley Limestones,' 494, 501- Granville conglomerate, 293. 2. Graptolites (Birkhill series) ft. HOBSON, B., obit., xcvii-xcviii; Abergwesyn-Pumpsaint area, bequest by, cxi-cxii. 178-89 ; (Llanvirnian) ft. Holcombe (Somerset), 17. Quitari area, 348-53, pl. xxxiii. HOLLAND, Sir T. H., elected Presi- Great Elm (Somerset), 28, 31, dent, xxx; on the Geological 32 fig. Age of the Glacial Horizon at GREEN, J. F. Iq., on the structure the Base of the Gondwana of Islay & Jura, 126-8, 142-3. System, lxiv-lxxxvi. Green and Purple Shales, Aber- Holman's Wood (Devon), 433. gwesyn-Pumpsaint area, 175, Holt's Brewery (Birmingham), 188, 189, 196. boring at, 63. GREGORY, J. W., obit., xci-xciv. Holwell (Somerset), 16, 20, 27; Gr~ve d'Azette (Jersey), 294, 295. see also Nunney-Holwell. Grits (Basement group), Fair- Homa-Kendu area (Kenya), fossili- bourno-Llwyngwril distr., 156, ferous deposits of, cxii-cxiii. 157; (Ceiswyn beds) of same Homotelus sp., 344-5, pl. xxviii. distr., 164-5; (Bala & Valen- Hopwas Breccia, Birmingham area, tian) of Rhayader-Llansawel 53, 54, 68-9, 72-3 ; see also Sut- distr., 202-17. See also Pys- ton Park beds. gotwr Grits. Hopwas Hays Wood (Staffs.), 85, Gritstone, Howardian Hills, 486-7, 86. 488. Hornblende-gabbro, Marcapata Gurney Slade (Somerset), 17. Valley, 323-4, pl. xxvii; h.- gneiss of same area, 328; h.- Hmmatite, in Rhayader-Llansawel schists of same area, 327. grits, 215 ; h.-ehlorite oolites, Hornfels, Socapata Valley, 320-1, N. Wales, 403, 408-9. 326, pl. xxvii. Hmmatization of Welsh iron ores, Hovingham (Yorks.), 487, 489, 418. 493, 496, 497 ; sect'n in Corallian Hafotty (Merioneth), 154 et sqq., at, 488. fig. Howardian Hills, Corallian of, 480- HALLIMO~D, A. F., on the Welsh 507. iron ores, 428. Huaracona (E. Peru), 312, 314, 317. Halmore (Glos.), 360, 361. Huayllumbe area (Peru), 330-9; Hambleton Oolite series, Yorks., Huayllumbe R., 313, 326, 329- 483, 490, 492. 30, pl. xxxii. Q.J.G.S. No. 356 LL 518 O~.N~RAL *ND~X [vol. lxxxix,

Huiscachani, Mt. (Peru), 309. Kaolin veins in Kramat Pulai Hyolithes cf. aratus, 366. rocks, 460, 466. Hypabyssal rocks, E. Jersey, 294- Kashmir, Ga,gamopteris beds in, 6. lxxii-lxxv. Hypersthene in Rhayader-Llan- Kate Brook (Devon), 435 et sqq. sawel grits, 214. Katosira Koken, 104-5. smithiana sp. nov., 105, pl. xi. Iceland. See Sandfell. Keele Beds, Birmingham area, 53, Idocrase, Kramat Pulai Scheelite 54, 67, 72, 76. Mine, 460-1, chem. anal. Kendu-Homa area (Kenya), fos- Igneous rock fragments in Nechells siliferous deposits of, cxii-cxiii. Breccia, Birmingham, 59. Kenilworth breccias, 84-5. Ilmenite in Rhayader-Llansawel Kenya. See Kendu-Homa. grits, 215. Keratophyre pebbles in Rhayader- Inambari Valley (Peru), 311,317. Llansawel conglomerates & ISobAr, F.T. See WILLBOUR~, grits, 208-9. E.S. Kerguelen Archipelago (Sub- Intrusions. See Dykes. antarctic), cxiii, cxv. Iron-ore oolites, N. Wales, 401-25 ; Kerswell (Devon), 433, 434, 443. nodular & oolitic beds comp. w., Kilburn (Yorks.), 480, 486, 503; 163, 169; oolitic iron ore at see also Shape Hill. Ffordd Ddu, 163, 164. Kiln Wood (Devon), 438-40, 443. Iron oxide-calcite oolites, N. Wales, Kn~o, W. B. R., exix--cxx. 410. Kinta (F.M.S.). See Kramat Ironwells :New Covert (Glos.), 358, Pulai. 360, 362. Kjapteyri (Iceland), 382, 384. Islay (& Jura), Dalradian suc- KLERCK, G.W., receives Murchison cession in, 125-42. Medal for A. L. DU Toil, Iv, Islay Limestone, 126 et sqq. ; in lvi-lvii. Beannan Dubh distr., 132-5. ' Knellwasser Kalk,' 436. Knightia gen. nov., 118-9. J. B. TYRRELL FUND, xviii, xxxix. irregularis sp. nov., 119, JEFFREYS, H., on the develop- pl. xii. ment of earth fractures, x-xi. Kramat Pulai Scheelite Mine, geol. Jersey (E.), geol. of, 273-305, figs., of, 449-79, figs., pls. xlii- pls. xxii-xxvi B. xlviii. JoN~.S, B., on the Geology of the KuNz, G. F., obit., xcviii. Fairbourne-Llwyngwril Dis- trict, Merioneth, 145-70, figs., La Nieoli~re (Mauritius), 7. pls. xv & xvi. La Rocquo (Jersey), 294. JoNEs, O. T., 143-4, 220, 398-9, La Selle (Mauritius), 1, 2, 5, 6, 7. 429-30 ; on the Development of La Solitude (Jersey), 282, 285. Fractures in the Earth's Crust, Laccolith, Sandfell, 379-98, figs., vi-ix; exhibits specimens of pls. xxxv-xxxix ; comp. w. ? organic bodies fr. Fre-Cam- Henry Mrs. lacc., 379 et 8qq. brian of South Australia, vi; Lcevigites limestone, S. Devon, exhibits wind-faceted pebbles fr. 440, 442, 446. Trimingham, cxxiii. ' Lmvigites Stufe,' 439, 440. Jo~Es, R. O., 271. Lagoon phase ($2), Vale of Jo~s, W. R., cviii-cix. Glamorgan, 244, 245, 246, 258, Jura (& Islay), Dalradian suc- 259. cession in, 125-42. Lamelhbranchia, Huayllumbe Jura Slates, 125 et sqq. ; in Lussa Red Beds, 336. Bay area, 137 et sqq. Laminosa Dolomites, Vale of Glamorgan, 23I et sqq. ; lithology I4 zone, E. Mendips, 15 et sqq. ; K, & fauna of, 236--7. bryozoal limestone, 15-16, 23 ; Langton (Yorks.), 490, 503; L. K shales as 'lubricant' for Wold, 493, 499-502. Beacon H_ill thrust, 25. Lawelldown Wood (Devon), 435, Kanam (Kenya), cxii. 436, 439. Kanjira (Kenya), cxii. Le Couperon (Jersey), 297. part 4] GENERAL INDEX 519

LE GRAND, J. P., cxx-cxxi. Llwyngwril (Merioneth), coast Lo Hocq (Jersey), 294. sect'n hr., pl. xv; geol. of Lo Plessis Coal Measures, Nor- L1.-Fairbourne distr., 145-70, mandy, 293. figs., pls. xv & xvi. Le Val (Mauritius), 2, 5. Llyn y Gader (Merioneth), 414, LEAK~.Y, L. S. B., on the Fossili- 418. ferous Deposits of the Homa- Llyn-y-Gader Slates, Fairbourno- Kendu Area, Kenya Colony, Llwyngwril distr., 147, 150, 164. cxii-cxiii. London, subsidence of, cv-cx; I,eavening (Yorks.), 481. water-level under, cxvi-cxxi. LEES, G. M., cxx. LONGFIELD, T. E., on the Sub- Leigh (Somerset), 21. sidence of London, cv, cx-cxi. Leighton (Somerset), 15, 16, 20, LONOSTAFF, J., on a Revision of 26, 27. the British Carboniferous Mem- Leirufell (Iceland), 382, 392. bers of the Family Loxonema- Leptobolus insignis mut. latus, ridge, with descriptions of New 342-3, pl. xxviii. Forms, 87-124, pls. vii-xii. Les Boeufs reef (Normandy), 301. Lon~mvillo (Jersey), 281, 294. I,es H~aux (Brittany), 291 ; L.H. Lorridge Bridge (Glos.), 361. syncline, 301. Lower Acid group, Fairbourne-- Les Hur~ts (Jersey), 286. Llwyngwril distr., 147, 158-60. Los Platens (Jersey), 284 et sqq. Lower Calcareous Grit, Yorks., Les Rouaux (Jersey), 278, 279 483-92, 495, 501. map, 282, 293, 294, 298, pl. xxiii. Lower Dunscombe (Devon), 431, Lias, E. Mendips, 17. 436; L.D. inlier, 434-5, 436-8, Library, cxv; list of donors to, 443, 444. xx-xxvi; report of L. Com- Lower Fine-Grained Quartzite of mittee, xix-xx. Islay, 126, 135, 137. Lickey Hills Breccia, Birmingham Lower Upcott (Devon), 433, 434. distr., 57 et sqq. Loxonema Phillips, 87-90 Limestones, in broccias of Bir- Loxonematid~e, British Carboni- mingham distr., 59 et sqq., ferous, 87-124, pls. vii-xii. 72-3, 76 et sqq.; in Kramat Luckington (Somerset) inlier, 16- Pulai rocks, 454, 459, 460-4, 17, 41, 42 map, 43-6. 469 et sqq.; associated w. N. Lussa Bay distr. (Jura), 137-40, Welsh iron ores, 412. See also fig. Carb. Limestone, Main Lime- LYELL Medal awarded to J. E. stone, & Upper Limestone RICHEY, lviii-lix; list of reci- Shales. pients of, xxxv; L. Fund Limonite, in Welsh grits, 215. awarded to A. B. BRouon~roN Lingula Flags, Fairbourne- EDOE, lxii--lxiii; awarded to Llwyngwril distr., 146, 147, W. N. EDWARDS, lxiii; list of 152-3. recipients of, xxxvi. Lingulella dav~i, 152. Lyons Plantation, Malton, 489; lepis, 154. sect'n in Corallian at, 491. -- spp., 365, pl. xxxiv. L'Islet (Jersey), 286, 298. MACX[E, W., obit., xcviii-xcix. Littleworth (Staffs.), 69. Maentwrog beds, Fairbourne- Llandegai red ore, 404, 406 et sqq. Llwyngwril distr., 147, 152. Llandeilo series, Fairbourno- Maesbury (Somerset), 16. Llwyngwril distr., 147, 162-4. Magnetite, in Welsh grits, 214; (Morioneth), 146, 147, in Tyllau Mwn iron ore, 410-12, 149, 161, 162, 165; L1. fault, fig. 149 et sqq. Magnetite-chlorite oolites, N. Llansawel-Rhayader distr., con- Wales, 403, 408. glomerates & grits of, 202-19. Main Limestone, Vale of Glamor- Llanvirn series, Fairbourne- gan, 226, 227, 254-7. Llwyngwrildistr., 147, 160-2. Main Quartzite, Jura, 126, 128 et Llanwrtyd (Broconsh.), 177, 194. sqq. Lluest-bryn-serth (Carmarthon),/ Malton (Yorks.), 480, 487 et sqq. 189.. Man, fossil, Kenya, cxii-cxiii. 520 GENERAL INDEX [vol. lxxxix,

'Manganese Stamp' in Gamlan Massive Limestone, Devon, 431, beds, 151. 434 et sqq. Maniri (E. Peru), 326, 329. MATLEY, C. A., 170. Manticoceras intumescens, 437, 438 Mauritius, lavas of, 1-12, chem. fig., 439, pl. xli. anals. nodulosum, 437, 438 fig., pl. MAwso~, Sir D., on the Geology & xli. Glaciation of some Islands of ' Manticoceras Stufe,' 440-1. the Southern Ocean and the Maol an Fhithich (Islay), 141; newly-discovered Antarctic M. an Fh. Quartzite, 126, 128, Mainland, cxiii-cxv. 129, 141. Medals & Funds, awards for 1933, Maps, geological, of the Aber- xviii. gwesyn-Pumpsaint area, pl. xvii; Melania sp., 335-6, pl. xxviii. of Asham Wood ravine, 24 ; of Mells (Somerset), 15, 23, 28, 30, the base of the Trias in the 31. Birmingham area, pl. v; of the (E.), structure of, Candleston area, 230; of the 14-51, figs., pls. i-iv. Chudleigh area, 432 ; sect'ns Menevian beds, Fairbourne- across Chudleigh area, 444-5; Llwyngwril distr., 147, 151-2. map of the S.W. end of Doethie Merehead Bridge {Somerset), 20, inlier, 185 ; of Downhead-Heale 26, 27. area, 22; of the Fairbourne- Merioneth. See Fairbourne. Llwyngwril distr., pl. xvi ; Merthyr Mawr (Glam.), 226, 234, sect'ns in the same area, 148, 235, 262, 265. 155; map of the Great Elm- Metalliferous lodes, Fairbourne- Wadbury distr., 32 ; of distrib, of Llwyngwril distr., 166-7. Corallian in the Howardian Metamorphism, E. Peru, 325, Hills, 481 ; of Islay & Jura, 131, 326; see also Contact-meta- 133, 139, pl. xiv; of E. Jersey, morphism. pl. xxviA; sect'ns thr. tho Mica-schist, Kramat Pulai, 455 ; same, pl. xxviB; map of the chem. anal., 456. Kramat Pulai Scheelite Mine, Microptychis Longstaff, 108-9. pl. xlviii; of Les Rouaux area, -- conslricta, 109, pl. x. 279; coast sect'n nr. Llwyn- --jacksoni sp. nov., 111-2, pls. gwril, pl. xv; map of Luckin- ix&x. ton Farm distr., 42; of Lussa pygmrea sp. nov., 111, pl. xii. Bay, 139; of the E. Mendips, ~ubconstricta, ll0-1, pl. ix. .pl. iii ; sect'ns thr. the same, pl. wrighti, 109. w; thr. the Pumpsaint area, Middle Calcareous Grit, Yorks., 193; map of distr, betw. 483, 490, 492. Rhayader & Pumpsaint shwg. Middle Cave, Malton, 492. distrib, of arenaceous material, 'Millstone Grit,' E. Mendips, 15 pl. xix; of the Sandfell lacco- et sqq. lith, pl. xxxix; of the Spring Millstone Grit, Vale of Glamorgan, Gardens area, 38 ; of part of the 226; Vobster, 16. Tortworth inlier, 359 ; of Tower Minerals, detrital, in Welsh grits, Hill (B'ham), 68; of the Vale of 211-5. Glamorgan, 263, pl. xx; of Mobley (Glos.), 360, 361. , 29; sect'n thr. Monograptus acinaces zone, Aber- Ystradffin distr., 193. gwesyn-Pumpsaint area, 176, Maquarie I. (Subantarctic), cxiii, 179 ; M. atavus zone, ibid., 176, CX1V. 179 ; M. convolutus zone, ibid., Marafon (Peru), Red Beds of, 176, 183-4, 190; M. crenulatus 332-3. zone, see Green & Purple Shales ; Marble Hill (Arizona), 396. M. crispus ? zone, Abergwesyn- Marcapata Valley (Peru), geol. of, Pumpsaint area, 176, 188, 196; 308-48, figs., pls. xxvii-xxxiii. M. cyphus zone, ibid., 175, 176, Marion I. (Subantarctic), cxiii. 180, 191, 198; M. griestonensis Martinia multicostata, 252. zone, see Pysgotwr Grits. Martite in Tyllau Mwn iron ore, Monograptus leptotheca zone, Aber- 410-12, fig. gwesyn-Pumpsaint area, 175, par~ 4] GENERAL INDEX 521

176, 182-3, 191, 192, 196, 198; Nodules in N. Welsh iron ores, M. magnus zone, ibid., 176, 181, 341-5. 191, 196, 198; M. nodifer, 190; Non-sequence, in Corallian of M. sedgwicki zone, Abergwesyn- Howardian Hills, 483, 490-2 ; at Pumpsaint area, 176, 184-7 ; M. Nemagraptus gracilis horizon, triangulatus zone, ibid., 175, 176, 163, 169 ; N. Welsh iron ores &, 180-1, 191 ; M. turriculatus zone, 417-8. ibid., 176, 187-8, 190. Normandy, tectonic relations w. Mont Orgueil (Jersey), 293, 295. Jersey, 299-301. Moraines, E. Peru, 315, 316. North Grimston (Yorks.), 480, MOURANT, A. E., on the Geology 488 et sqq. ; sect'ns in Corallian of Eastern Jersey, 273-305, near, 499-501; N. G. Hill, figs., pls. xxii-xxvi, 307. Upp, er Calcareous Grit at, 503- Mudstones (Bala & Valentian), 4; North Grimston cement- Abergwesyn-Pumpsaint area, stones,' 502. 177 et sqq.; of Fairbourne- Northileld Breccia, Birmingham Llwyngwril distr., 150-1, I53, distr., 53, 54, 59, 76, 77. 157, 163, 164, 165; associated Nottage (Glam.), 224, 249, 264. w. N. Welsh iron ores, 409-10, NucIeolites scutatus, 493. 413. Nunney-Holwell Combe, 34, 37. MtiGGE, J. O. C., obit., xcix-c. Nunney quarry (Somerset),' pivot- Mull of Oa Phyllites, 126, 128, 129, thrusting ' in, 30, 35-7, fig., pl. 141. ii. MURCHISON Medal awarded to Nunney-Whatley inlier, 16, 27, A. L. Du TOIT, lv-lvii, list of 28, 30, 34-5. recipients of, xxxiv; M. Fund Nusiniscata R. (Peru), 311,329. awarded to T. I-I. WHITEREAD, lxi-lxii; list of recipients of, (Somerset), 17-18. xxxiv. Officers elected, xxx. Muscovite in Welsh conglomer- Ogmore Down (Glam.), 224, 225, ates & grits, 212; m.-granite 264, pl. xxi. pebbles in the same, 210-11. Ogmore R. (Glare.), 224-5, 231 Mynydd y Garn (Anglesey), 407. et sqq. 0gofau (Carmarthen), 192. Nant Gwrach (N. Wales), 179 Olchard (Devon), 440-1, 443, 446. et sqq. Old Malton (Yorks.), 496, 498, Nant-y-gelynen (N. Wales), 180, 499. 183, 184, 186. Old Red Sandstone,i E. Mendips, Nant y Rhaiadr (Carmarthensh.), 15 et sqq. 178 et sqq. Olivine-basalt, Mauritius, 2 et sqq. NAV~ER'S theory of earth frac- Oolites, iron-ore, of N. Wales, tures, vii. 401-27, figs., pl. xl. t%chells Breccia, Birmingham Ooliths in Welsh iron ores, 404 distr., 53, 54, 58-60, 62, 79. et sqq, ' Nehdener Schiefer,' 436. Oolitic & nodular beds (Llandeilo), Nemagraptus gracilis age of oolitic Fairbourne-Llwyngwril distr., & nodular beds of N. Wales, 147, 163. 163. Ordovician. See Arenig, Llan- Nettlebridge Valley (Somerset), 17. virn, &c. Newton Burrows (Glare.), 226. Orthis, 343, pl. xxviii. Newton Down (Glam.), 224, pl. lenticularis, 153. EEl. Orthoceratid~e, 342. Newton fault (Glam.), 224, 234, ' Orthophyres de Tr~guier,' 291. 250, 262, 266-7, 268 fig. Osmington Oolite series, Yorks., Newton Point (Glam.), 224, 250. 483 ; non.sequence below, in Niobella [Niobe] homfrayi, 368. Howardian Hills, 490-2 ; --- vat. smithi nov., 368- lithology & fauna of, ibid., 70, pl. xxxiv. 492-502. Nodular mudstones (Gamlan beds), Overthrust-faults, development of, Fairb ourne-Llwyngwril distr., vii-viii. 150-1. Oxenbrook (Glos.), 361. 522 GENERAL INDEX [vol. lxxxix,

' Pacificite,' basalt-trachyte asso- Pongo de Manseriche beds cor- ciation &, 10-12; use of term, related w. those of Huayllumbe, 12. 332-4. Paganzo system, Argentina, Pongo Sandstone, 332. lxxxiii-lxxxv. Porphyre p6trosiliceux do Palace Quarry (Lower Duns- L4zardrieux,' 291-2. combe), 435. Porphyrite intrusions, Fairbourne- Palca (E. Peru), 315. Llwyngwril distr., 165, 166. Palcamayo (E. Peru), 331. ' Porphyrites do Plourivo,' 292. Pant Einion (Merioneth), 154-6. Porphyry, Jersey, 295; Sandfell Pant St. Bride's (Glare.), 239, laecolith, 383 et sqq. ; p. pebbles 240, 265. in Welsh conglomerates & grits, Paregwyllt (Glam.), 254-6, map. 211. Paternosters - Ecr~hous reef Port a' Chotain (Islay), 137. (Jersey), 299. Portaskaig-Bonahaven distr. Pebbles in Welsh conglomerates (Islay), 135-6. & grits, 205-11. Portaskaig Conglomerate, 126, 127, Pegmatite intrusions in Kramat 128, 130, 132-5. Pulai rocks, 459-60, 466. Porthcawl (Glare.) 224, 264, pl. Pen-y-rhiw (Carmarthen), 184. xxi. Pen yr Allt (Carnarvon), iron-ore Porth-y-rhyd (Ca~narthen), 178. oolites of, 406, 407-8, 413, 414, ' Postprolobites - Platyclymenia 418. Stufe,' 441. Pennine fault-system, ix-x. Potticar quarry, Hovingham, 488. Penrhos beds, 152. Pre-Cambrian ?organic bodies fr. Penterfyn (Anglesey), iron-ore S. Australia, vi. oolites of, 407, 409, 410. Pre-Triassic floor in Birmingham Perry Hill Breccia, Birmingham area, 65-6, pl. v. area, 65-6, 75, 77. PRESTWlC~ Bequest, applications Peru. See Marcapata Valley. of, xxxvii. Petit Portelet (Jersey), 282. Prince Edward I. (Subantarctie), ,,. Petite RiviSre (Mauritius), 3. CXIII. Phlogopite in limestone & schist ' Prolobites Stufe,' 441. at Kramat Pulai, 454, 457, 458. Pseudo-breccias (DI) , Vale of Phonolite & phonolitic trachyte, Glamorgan, 227, 247 et sqq. derivation offr. basaltic magma, Pseudo-oolites associated w. N. 9-12. Welsh iron ores, 413. Phyllite. See Andalusite-phyllite. Puea Sandstone, 332. 'Pipe Rock,' Islay, 130, 135 et PuoH, W. J., 170, 219-20. sqq. PULFREY, W., on the Iron-Ore Pisolites, iron.ore, of N. Wales, Oolites and Pisolites of North 401-27. Wales, 401-27, figs., pl. xl, Pitcot fold (Glam.), 262, 263. 430. ' Pivot-thrusting ' in Nunney Pumpsaint-Abergwesyn area, geol. quarry, 35-7, fig., pl. it. of, 172-201, figs., pls. xvii & Plateau-basalt series, Iceland, 380, XVln. 382, 384, 386, 387 fig. Puy Chopine (Auvergne), 396-7. PLA~T, J. I., 220 ; see also DAVIES, Pyrite in Welsh grits, 214. K.A. Pyritic oolites & mudstones, N. Platyconcha gen. nov., 116. Wales, 409-10, fig. dunlopiana sp. nov., 116-7, Pyritization of Welsh iron ores, pl. xi. 418. hindi sp. nov., 118, pl. xi. Pyroclastic pebbles in Welsh con- ~ tenuilineata sp. nov., 117-8, glomerates & grits, 209-10. pl. xi. Pyroxeno-schist, Kramat Pulai, Pleuroeera, 334-5, fig., pl. xxviii. 455 chem. anal., 456. Plicatostylus gregarius, cxxii-cxxiii. Pyrrhotite in schists of Kramat Plutonic rocks of E. Jersey, Pulai, 455, 456. 293-6. Pysgotwr Grits, Abergwesyn- PLYMEI~I, G. H., 305. Pumpsaint area, 176, 188-9, Plynlimon (Cardigan), 195. 196. GENERAL INDEX 523

Quartz, in Welsh grits, 212; Ridge End (Sandfell), 388 et secondary qu. in Jersey rhyo- sqq. lites, 287; qu. veins in rocks of River courses, earth-movement &, Fairbourne-Llwyngwril distr., cviii. 166-7; in Kramat Pulai rocks, ROMANES, J., cix; on the water- 460, 466, 470, 476; vuggy qu. level under London, cxvii. ibid., 473, pl. xlvii. Rozel (Jersey), 280, 297, 301; R. Quartzite, in Nechells Breccia, Bay, 297; R. Conglomerate, Birmingham, 59. See also Lower 278, 294, 296-7, 298, 301-2. Fine-Grained Quartzite, Main Rutile in Welsh grits, 213. Quartzite, & Maol an Fhithich Quartzite. S zone, E. Mendips, 18 et sqq. Quinton. See Warley-Quinton. S~ zone, Vale of Glamorgan, 227, Quitari area (Peru), geol. of, 243-6. 339-42; pal~eontology of, 342- St. Catherine's Bay (Jersey), 288, 6, pls. xxviii & xxix; grapto- 296. lites fr., 348-53, pl. xxxiii. St. Dunstan's Well (Stoke House), Quitari R. (Peru), 308, 313, 330, 18. 331. St. Helier (Jersey), 297, 298; St. H. anticline, 297. Radiolarian cherts, S. Wales, 226, St. Martin (Jersey), 282, 285. 254, 256. St. Ouen's Bay (Jersey), 275. Radnorshire. See Rhayader. St. Paul I. (Subantarctic), cxiii. Radstock coalfield, in relation to St. Tudwal's (Carnarvonsh.), 407, Beacon Hill pericline, 18, 20, 409. 46-9; R. slide-fault, 44, 49. Salt Range (Punjab), base of Gond- Railford Bridge (Somerset), 28, wana in, lxxvi-lxxix. 30, 33. Saltern Cove (Torbay), 436, 441. Rau~luhnausar (Iceland), 382, 384, San Gaban Valley (Peru), 310, 388, 393. 323, 325. Red Beds, E. Peru, 330-6, 340. Sandfell laccolith, 379-98, figs., Reptilian footprints in Calcareous pls. xxxv-xxxix. Conglomerate, Birmingham, 60- Sandfellsdal (Iceland), 381 fig. 1. Sandstone in Nechells Breccia, Reticuloceras zone, S. Wales, 256. Birmingham, 60. ' Revet crag,' Sandfell, 387 et sqq. Scar Wood, Gilling, 491; sect'n Rhacopteris flora, lxxx-lxxxi. in Corallian at, 495-6. Rhaxella spicules in Lower Cal- Scarba Conglomeratic Group, 125 careous Grit of Howardian Hills, et sqq.; graded bedding in, 483, 485-6, 487, 488; in Upper 130, pl. xiii. Calcareous Grit ibid., 503. Scheelite Mine, Kramat Pulai, Rhayader-Llansawel distr., con- geol. of, 449-79, figs., pls. glomerates & grits of, 202-19, xlii-xlviii. pl. xix. Scheelite ore, Kramat Pulai, 467- Rhiw fault, 225, 240, 262, 265, 77, figs. 268 fig. Schist, Kramat Pulai, 455-7, chem. Rhiwnant inlier, 175, 197. anals. ; origin of, 457-8 ; veins Rhoslefain (Merioneth), 146. in, 458, 459; contact-meta. Rhuvaal (Islay), 137. morphie minerals in, 460-2; Rhych Point (Glare.), 224. folding in, 463-4, 465, figs.; Rhyolite pebbles in Welsh conglo- fault-relations w. plutonic mass, merates & grits, 207-8. 464-6, fig. See also 'Chloritic Rhyolites of Beacon Hill Acid schist '. group, 158-9; of E. Jersey, Schizocrania, 343. 276, 289, 290, 294, 295, pl. xxii; SC~UCm~RT, C., & the basal porphyritic rh. of E. Jersey, Gondwana beds, lxxi et 8qq. 281-4; non-porphyritic rh. of Sc~rv~oR, J. B., 479. the same region, 284-9, pl. xxiii. Selwood Farm (Spring Gardens), RICHEY, J. E., Lyell Medal sect'n at, 37-39. awarded to, lviii-lix. Seminula Oolite, Vale of Glamor. Ridge (Devon), 433, 434. gan, 244, 245, 246, 258-9. 524 GENERAL INDEX [vol. Lxxxix,

Seminula zone. See S zone. ' Spilites de Paimpol,' 291. Septadella jackmanoe gen. et sp. Spirifer, 242, 249, 252. nov., 371-3, fig. Spring Gardens (Somerset), 16, Sericite in Jersey ashes, 288. 37-41, map. Serpentine in Welsh grits, 213. Standard Limestone, Vale of Settrington (Yorks.), 494, 499, Glamorgan, 231 et sqq. 500. Stilpnomelane in Welsh oolitic Shale series, E. Jersey, 275. iron ores, 419-20. Shales (Llanvirnian), Quitari area, Stoke House (Somerset), 18. 340-1. See also Green & Purple Stoke St. Michael (Somerset), 17. Shales. Stratigraphical nomenclature, SHAND, S. J., on the Lavas of world-wide application of, lxix- Mauritius, 1-12, 13. lxx. (Somerset), 14, 17. Stromatoliths in N. Welsh iron SHOTTOI~, F. W., 84-5. ores, 415 fig., 420. Shumardia sp., 370, 375. STUBBLEFIELD, C. J., on fossils SIBLY, T. F., 271. fr. the Tremadoc shales of Sideritization & de-sideritization Tortworth, 364-77, pl. xxxiv, of Welsh iron ores, 418. 378. Sike Gate beds, 495-6. Subantarctic islands, geol. & Sillimanite in Welsh grits, 214. glaciation of, cxiii-cxv. Silurian, of E. Mendips, 15, 17; Sutton Park beds, 73-5. of E. Peru, 315, 317. Swallets in E. Mendips, 17, 18, SIMrSON, T. V., xi. 23. Singrina, Lake, (E. Peru), 316. Swinton (Yorks.), 498, 502. Slates, of the Beacon Hill Acid Syringothyris zone. See C zone. group, 159. See also Bifidus Slates. Tabular Hills (Yorks.), 480, 483, Slingsby (Yorks.), 487, 493, 496, 490. 497. Tadhill (Somerset), 19, 21. SMIT~, B., cvi. Tais Bheinn (Islay), 137. SMITH, P. B., obit., c-ci. Talchir boulder-bed, age of, lxv- SMITH, S., 448 ; on the Occurrence lxviii. of Tremadoe Shales in the Tarannon. See Gala. Tortworth Inlier (Gloucester- Tear-faults, development of, vii- shire), 357-63, fig. viii, x-xi. SMITH, W. C., 12-13, 429. T6te des Hougues (Jersey), 286, SMITH, WILLIAM, Memorial at 296. Midford, xix. THOMAS, HERBERT H., 377-8, 399. Smith's Brewery, Aston, boring Thorotungstite, Kramat Pulai, at, 63-4. 452. Snape Hill, Kilburn, 486; sect'n Thrusting. See' Pivot-thrusting'. in Corallian at, 503. Thuringia, nodules in oolites of, Snowdon rhyolites comp. w. those 414. of Jersey, 276, 278, 283. Thuringite in ~Velsh oolitic iron Socapata Valley (Peru), 312, 319, ores, 419-20, 422 et sqq. 323, 324, 325; granite ft., TILLEY, C. E., 12. 318-9, 325 ; contact-meta- Tonfanau (Merioneth), 149 ; T. morphosed rocks fr., 320-1. dolerite, 166. Soho fault (Somerset), 21, 23. Tor Rock. See Vobster. South American graptolite faunas, Tortworth inlier, Tremadoc shales 353. in, 357-63, map; fossils ft., South Wales coalfield, :North 364-77, fig., pl. xxxiv. Crop of, 226, 244 et sqq. Tourmaline in Welsh grits, 213. Special General Meetings, iii-v, Tower Hill (nr. Birmingham), cxv-cxvi. 68-9, fig. Sph~erosiderite, associated w. N. Towy anticline, 175, 177. Welsh iron ores, 412-3. Trachyte, Mauritius, 2, 3, 7-9, Spherulites in Jersey rhyolites, chem. anal. ; tr.-basalt as- 284 et sqq.; in vole. rocks of sociation, 9-12. See also Brittany, 291, 292. Phonolite. part 4] C,~N~RAL rSD~X 525

Trefriw (Carnarvonsh.), 413. Vallis Vale (Somerset), 15, 16; Tr~gorrois (Brittany), volcanic sect'n at, 28, 29 map, 33-4, rocks of, 291 et ~qq. ; tectonic pl. i. relations w. Jersey, 299-301. VA~r DE~r BReECh, E., obit., ci-cii. Tremadoc (Carnarvonsh.), oolitic Veins in Kramat Pulai rocks, 458-- iron ores of, 406, 409, 418. 60, 466. Tremadoc shales in the Tort- Vestur Horn (Iceland), 383. worth inlier, 357-63 ; fossils ft., Vicard Bay (Jersey), 281-2; V. 364-77; Tr. Slates of Fair- Point, 278, 281, 298. bourne-Llwyngwril distr., 147, Vigra beds, 152. 153-4. Vikurgerdis-A (Iceland), 384, 391. Tremolite-asbestos, Kramat Pulai Vilcanota, Cordillera de, (Peru), Scheelite Mine, 461. 309, 315, 317; V. knot, 309, 314 Trilobita, (Llanvirnian) Quitari et 8qq. ; V. Valley, 313-4. area, 344"6, pls. xxviii & xxix; Vobster inlier (Somerset), 16, 41, (Tremadoe) ft. Tortworth, 366- 42-3 ; Upper V. inlier, 41-2. 70. Volcanic division (Lower) of Trilobite band of Lower Dun- Beacon Hill Acid group, 158-9; scombe, 436, 442. (Upper), 159-60. Triarthrus spp., 345-6, pI. xxix. Volcanic group. See Basic Vol- Tr!as & Carboniferous, rocks betw., canic group. m Birmingham distr., 53-83, Volcanic islands, basalt-trachyte figs., pls. v & vi. association on, 9-12. Trinucleus 8p., 346, pl. xxix. Volcanic rocks of Brittany & Trio (E. Peru), 325, 328. Jersey compared, 291-2. Tuff-breccia, Sandfell, 382, 385-6, Volcanic series, E. Jersey, 276-93. 388, 392. Vugs, Kramat Pulai Scheelite Tungsten, absence fr. Kramat Mine, 471, 473; vuggy quartz Pulai Scheelite Mine, 462, 476. /b/d. 473, pl. xlvii. Tunscombe Bottom (Somerset), 24 map, 25. Wadbury (Somerset), 28, 30, 32; Tusker Rock (Glare.), 224. W. Combe, 31. Ty Coch fault, Vale of Glamorgan, Waddon (Devon), 433, 434, 443. 266. Wales (]q.), iron-ore oolites & Tyllau Mwn (Merioneth), iron-ore pisolites of, 401-27. oolites of, 410-12, fig., 418, 419 WALTERS, R. C. S., on the water- f~. level... under London, cxvii- Tynllan beds comp. w. those of CXVlll. Breadstone, 373-4. Wanswell Green (Glos.), 360, 361, Warley-Quintou breccias, Bir- Ugbrooko (Devon), 446. mingham area, 65-6, 75-6. Ugbrooko-Wollinlier(Devon), 431, WARR~.~, S. H., on oscillatory 435. earth-movement in Essex, cviii. Umariah coalfield (C. India), lxxv- Water-level in Chalk under Lon- lxxvi. don, cxvi-cxxi. Unconformity, Tremadoc-Arenig, Waterlip (Somerset), 17, 18-19. Fairbourne-Llwyngwril distr., WATTS, W. W., 398. 147, 154. Wattville Bridge (Handsworth), Upper Calcareous Grit, Howardian 71, 78. Hills, 483, 484, 502-4. WAYL~D, E. J., Bigsby Medal Upper Limestone Shales, Glamor- awarded to, lix-lxi. gan, 224, 226, 251-7, map. WEDEK/I~D'S goniatite zones ap- ' Urchin Dirt Beds ' facies, Howar. plied to rocks of Devon, 437-8, dian Hills, 493, 498. 439, 440-1, 442. WEGENER'S theory of continental Valentian conglomerates & grits, drift, Mauritius lavas &, 1-2. Rhayader-Llansawel distr., 205- WELCH, F. B. A., onthe Geological 17 ; V. series, Abergwesyn- Structure of the Eastern Men- Pumpsaint area, 175, 176, 177- dips, 14-51, figs., pls. i-iv, 52. 89. WeLham (Yorks.), 493, 494, 499, Valley des Vaux (Jersey), 293. 500. Q.J.G.S. No. 356. MM 526 GENERAL INDEX [vol. lxxxix

Well (Devon), 436, 440-1, 443, ' xi' tectonic structure, E. Mendips, 446. See also Ugbrooke. 47-8. WELLS, A. K., 12; on volc. rocks of Jersey, 305-6. Yanahurco R. (Peru), 308, 313, 330. Westmount (Jersey), 278, 281, Yorkshire. See Howardian Hills. 297. Ystradffin (Carmarthen), 175, 178, Whatley (Somerset), 28, 33. See 181, 183, 193, pl. xviii. a/so Nunney-Whatley. WHITEHEAD, T. H., 83-4; Mur- Z zone, E. Mendips, 17 et sqq. chison Fund awarded to, lxi- Z s zone, Vale of Glamorgan, 227- lxii. 31. Wick (Glare.), 224, 246, 262. Zircon in Welsh grits, 213. W~Z~BO~mN, E. S., (& F. T. Zygopleura Koken, 90-2. INGH~) on the Geology of the --benniana sp. nov., 102-3, pl. Scheelite Mine, Kramat Pulai viii. Tin Limited, Kinta, Federated -- brevia, 98, pl. ix. Malay States, 449-79, figs., pls. --var. grosM~astata nov., xlii-xlviii. 99, pl. ix. WILLS, L. J., 83. --pulcherrima, 97, pl. viii. WILMORE, A., obit., eii-ciii. -- redensis sp. nov., 104, pl. viii. W~so~, V., on the Corallian --robroystonensis sp. nov., 100- Rocks of the Howardian Hills, 1, pl. viii. Yorkshire, 480-507, figs., pls. --var. tenuicostata nov., xlix & l, 509. 102, pls. viii & xii. Windsor St. Gas Works (B'ham), var. younf]iana nov., borings at, 55-62, fig. 101-2, pl. viii. Withybrook fault (Somerset), 18. -- roscobien~ sp. nov., 99-100, WOLLASTON ~/~EDAL, awarded to pls. viii & xii. M. BOULE, liv--lv; list of reci- rugifera, 92-3, pl. vii. pients of, xxxiii; W. fund --var. cylindraeea, nov., awarded to A. WRmLEY, lxi; 94, pl. vii. list of recipients of, ~xiii. --vat. minima, 93-4, pl. Wollastonite, Kramat Pulai vii. Scheelite Mine, 457-8, 471-2. -- var. rowlandsi nov., 95, WOODWARD, Sir A. S., elected pl. vii. Foreign Secretary, xxx. --var. ~drp/anata nov., WOODWARD, C. J., obit., ciii-civ. 94-5, pl. vii. WOOLDRIDGE, S. W., oil the subsi- --vat. tenuinodosa nov., dence of London, cvi-cvii ; on 95, pl. vii. the Rozel Conglomerate, 306-7. sca/aro/dea, 97-8, pl. ix. WRIGLEY, A., Wollaston Fund --var. longnorensis nov., awarded to, lxi. 98, pl. ix. -- sulculosa, 96-7, pl. viii. Xenotime in Welsh grits, 214. -- urei, 103-4.

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