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GENERAL INDEX TO THE QUARTERLY JOURNAL PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [The :Fossils of which the names are printed in italics are figured.] Aber Fault, 251, 255. phyritee from the Lower Old Red Abereidy Bay, 294. Sandstone of Scotland, Proc. 75; Abu Gerayeh, 579. of trachyte from Jedburgh, Proc. Abu Gurdi, 578. 75 ; of acid eruptive rocks from the Abu Tiur, 579. Lower Old Red Sandstone, Proc. Acanthopholis, 375. 77; of olivine-basalt from the Accessory minerals of plutonic rocks, Garlton Hills, _Proc. I i x ; of bedded 111. trachytes ibid., _Proe. i I2 ; of Trap- Aehneigie, 227 et seq~I. rain Law rock, l~roc, x i4; of Aehub, 245. plutonic rocks from Garabal Hill Additions to the Library,Proc. x93 -26z. and Meall Breac, 115 ; of Barbados Addlestone station, 43. limestones and chalk, 185; of Aiitosaurus, t)roc, x89. foraminiferal oozes, 186; of radio- ,4ffelacrinites, Messrs. G. Sharman and larian marls of Barbados, 187, 188; E. T. Newton on a new form of, of Barbadian argillaceous earths, 150-]52. 189; of oceanic red clays, 190; of Agglomerates and tufts of the Lower Barbadian volcanic sands, etc., 192 ; Old Red Sandstone, Proc. 78-80. of Trinidad microzoic rocks, 219, Airy Cot marl, 173. 525 ; of mica-augite-andesite of Albania (Griqualand West), Mesa- Killerton, 507. saurus tenuidens from, 591. Anchor Head Hill (Somerset), section Alexandria (Barbados), 203, 204. at, 287. Allomorphina trigona, 197. Andesites of the plateau.series, _Proe. Allt a Chip, 230. III. , Allt Dhu slates, 251. Annandale, Permian volcanic rocks in, Allt-na-Lairige, 105 et .~qq. _Proe. 148 et se~q. Allt Righ Ian section, 228-230. Anniversary Address of the President, Ally Creek (Trinidad), 524, 540. 2roc. 38-179. Alth, H. yon, on 1Jal~as~is, 548, Annual Report for 1891, Proe. 7-~.7. 549. Antrim, Tertiary volcanic rocks in, Ambarrow, 51. Proc. 164 et seqq. Ammonites euryodus, 447, 450. Aplites in Sark, 128, 129. Amphistegiua-rock of Trinidad, 523 Arch~ean gneiss, overthrust near Ix)ch et se~q. an Nid, 231, 233. Analyses of Diabase-lavas from the Archa~opneustes abruTtus, Mr. ft. W. Pentland Hills, _Proc. 73; of por- Gregory on, 163-169. 2T2 606 GENERAL INDEX. Argiline of Naparilna Hill, 525 eg Bath (Barbados), Ooeanie Deposits serlq. near, 206, 215. ArgiUaceous earths of Barbados, che- Beach-pebbles in Glen Roy, 19-20. mical composition of the, 189-192. Beacon Hill (Cornw.), rubble-drif~ on, Arnan Burn, 104 eg se~q. 316. Arthur Seat, Prec. xzS, Iz6, ~57. Bcarwood, 36, 53. Ascot, Bagshot Beds near, 49-50, Beath, Hill of, _Prec. x 3 I. 55. Bedded tufts and lavas, Lower Old Ashley Hill, 40. l~ed, -Prec. 80-85; of the plateau- Ashprington Volcanic Series, Proc. series, Prec. xi5-I18 ; of the puy- IO]. series, t)roc, x38-I4 o; in the Assiout, 482, 484. Permian, Prec. i5o-i53. Assistant Secretary, appointment of, Belodon, _Prec. 189. Prec. 3. Bembridge, raised beach and ' head' Assouan, 483; geology of country E. at, 274. of, 577. Ben Arkle, 234. Asteropecten Orion, orig. specim, ex- Ben Damhain, 104 et seqg. hibited, Prec. 185. Ben Eay Forest, 234. Asterostoma, 165 et seqq. Benaun ~Iore, felsite of, Prec. 99. Auckland Park (Transvaal), section, Berenice, 576. 421. Bethesda (N. Wales), 245, 247. Augite in plutonic rocks of Oarabal Bettws Garmon, 246, 251. Hill, etc., 109. Bibliography of South African geo- Aurum estate (Transvaal), 417. ]og~r, 406-408 ; of basalts and andesites of Devonshire, 496-497. Babbaeombe Bay, 62. Bill Hill, 51, 54. Bacon Hole (Gower), 2~9, 290. Binn of Burntisland, Prec. ~37. Baggy Point, section at, 285. Biotite, in plutonic rocks of Garabal B@shot Beds of Bagshot Heath, Mr. Hill, etc., 110; replacing horn- H. W. Monckton on, 48-58; Rev. blende, 131,136. A. Irving on, 485, 486. ' Bird's-eye' diorite of Guernsey, 135. Bagshot Beds, irony concretions in, 43, Birling Gap, rubble-drift at, 266-267. 44. Birtle Heath, 53. Bahnesa, 483. Bishop's Clist, 72, 74. Banded gneisses of Sark, 125-127. Bissex Hill rocks, minute structure of, Bangor Breccias, 244 et seq~., 257- 176-177, 212-214. 258. Black Rock Quarry (Tenby), section -- Conglomerate, 244 et se~l~., 256- in, 320. 257. Blackwater River to Farnham Park, ' Banket,' use of term, 410. section from, 31. Barbados, Arch~eopneustes abruptu8 Blake, Rev. J. F., on the rocks mapped from, 163 ; geology of, 170-225. as Cambrian in Caernarvonshire, Barkas, Mr. T. P., obituary notice of, 243-261. Prec. 55. Blown sands in connexion with raised Barlow-Jameson Fund, award of pro- beaches, 285. eeeds to Prof. O. Mayer-Eymar, Blue Clay of the l~'orthern Etbai, Prec. 35. 576, 579. Barnstaple Bay, raised beach in, 284- Blue Laminated Grits, 244, 258-259. 285. Bohuntine, alluvium at, 11-12. Bart~)n Limestone, 379 ; residues from, Boksburg Colliery, section at, 416. 385. Bolivina strigillaga, 515. Basal Quartzites (Durness), 228 et Bonney, Prof. T. G., on the so-called seqq. Gneiss of Carboniferous age at Basalts of the ]plateau-series, Prec. Guttannen, 393--399; and Rev. xio-zzx; of the puy series, Prec. Edwin Hill, on the Hornblende- Iz9-I3O; and andesites of Devon- schists, Gneisses, and other Crystal- shire, 496-507. line Rocks of Sark, 122-146. Basement gneiss of Sark, 124. Bontour Point, 52l, 523. Bases and silica in plutonic rocks, Bosco's Den (Gower), 289, 290. molecular relations of, 116. Boulders from Glen Spean syenite, Bass Rock, Prec. x x 3. dispersion of, 23-24; foreign, in GENERAL INDEX. 607 raised beaches, origin of, 295-298 ; Butler, Mr. G. W., and Prof. G. A. J. at Selsey, origin of, 351. Cole, on the Lithophyses in the Boulder Clay in Essex, 367 et seq~. Obsidian of the Rocehe Rosse, Boutiques dyke, 139. Lipari, 438-445. Bowsey Hill, 40. Butts Green, 367. Boyle(Roseommon),felspathic breccias near, _Prec. 97- Cae Seri, 257. Braamfontein, section, 421. Caerhdn, 259. Bracknell, Bagshot Beds at, 54-55, Caernarvonshire, Rev. J. F. Blake on 485. rocks mapped as ' Cambrian' in, Bradfield, 39, 41. 243-262. Brady, Dr. H. B., report on Bar- C~esar's Camp (Aldershot), section badian microzoic rocks, 195-199. near, 32. Braich Melyn, 247, 248. Cairo, 481. Braid Hills, Prec. 70, 78 et se~q. Calcareous and calcareo-silieeous marls Brcecias~ Red, in Devon, age of, 75- of Barbados, 173. 77. Calceola Beds, 377 et se~q. Brecciated structure in hornblende- Calcified earths of Barbados, 176-177. rock, 130. Caldy IsIand, ossiferous fissures on, Brecqhou rocks, 139, 141. 320. Brent Valley, age of the, 371. Caledonia, Lake, Prec. 67 et se~. Brighton, ' head' and raised beach at, Camberley, gravel at, 34. 267-270. ' Cambrian' in Caernarvonshire, l~ev. Brithdir quartz-felspar grit, 244 et J. F. Blake on rocks mapped as, se~q., 259-260. 243-262. British Isles, periods of volcanic action Campsie Fells plateau, Prec. x o 7 et in the, Prec. I69. se~q. Bron-y-foel, 252. Cane Garden (Barbados), 216. Bronllwyd Grit, 245 et seqq. ; junction Canefleld (Barbados), Oceanic De- of, with Pale Slate, 247. posits at, 208; basal chalk from, Brook Cliff', rubble-drlft on, 275. 173, 177; red earth from, 181. :Browne, Mr. R. G. Mackley, on the Canterland, Den of, Prec. 86. Precipitation and Depositi,'m of Carapace in trilobites, 235. Sea-borne Sediment, _Prec. 184. Carbonaceous rocks in Egypt, 483, Bryn Cfil, 226. 484. Bryn Derw, 255. Carboniferous volcanic rocks, _Prec. Bryn Efail, section at, 243-244. lO4.--147. Bryn Hafod-y-wern, fault at, 245. Careg Ludan grit, 250. Bryn Madog, 257. Careg-y-Fedwen, 259. Bryn Ogwen, 247. Careg-y-Gath, 257. Bryniau Bangor, 255. Caribbean region, change in physical Brynllwyd, 257. geography of the, 221-225, 536- Bryozoa, North Italian, 153-162. 538. :Buckhurst, 54. Caroni Series of Trinidad, 520. Bucklebury Common, 39-40. Carson, Mr. A., on the Rise and Fall Buckman, ]Y[r. S. S., on the Morpho- of Lake Tanganyika, 401-403. logy of ' Stephanoceraz' zigzag, Cassiduli~a subglobosa, 197. 447-452. Castle Grant (Barbados), Oceanic De- Buddo Ness, Prec. 158. posits near, 206-208; minute Budleigh Salterton Conglomerate, 64- structure of rocks from, 174-176, 65. 180, 181. Buffelsdoorn, 433; section, P1. X. ' Cataract' rock of Upper Egypt, 576 .Bulimina trigona, 515. et se~q. Bunter Beds in South Devon, 64-65, Cattedown Cave, ossiferous breccia in, 68-71. 319. Burghfield Common, gravel on, 39. Cawsand, ' felspathic trap' at, 498- Burleigh, 36. 5OO. Burnt l:Iill (Barbados), 205; minute Cawsand Bay, raised beach and' head' structure of rock from, 174. in, 279-280. Burons islets, 124. Cedar Grove (Trinidad), rock from, Burtley Heath, gravel on, 39. 219. 608 .GENERAL I~DEX. Cerithioides, 573. Obsidian of fl~e Rocche Rome, Cetiosauria, group of the, tu x88- Lipari, 438-445. I8 9. Colds Cave marl, 215. Chalk, English and Barbadian, com- Comparison of the Red Rocks of South pared, 179-180. Devon with those of the Midland Chalky earths of Barbados, 173. and Western Counties, 60-67. Chalky Mount (Barbados), 204. Concretions, irony, in Bagshot Beds, Chapman, Mr. F., on Microzoa from 43, 44; siliceous, in Barbados the Phosphatic Chalk of Taplow, rocks, 175-176. 514-518. Conglomerates, gold-bearing, south Chavey Down, 33-34, 36, 43. of Johannesburg, 416--418. Chemical composition of Barbadian Conglomerates, north of Main Reef rocks, 182-193. Series (Transvaal), 418-420. Cherry Tree Hill (Barbados), 211. Conset Bay rock, 174. Chesilt~m, marsh-shells at, 278. Contemporaneous character of Devon Cheviot Hills, porphyrites of the, ' felspatbic traps,' 497-498. Prec. 74-75, 93;trachy tes of the, Contortions in gravel, 35, 36. Prec. 7 6.