﻿Vol. 66.] 



GENEKAL INDEX. 



699 



Flett, J. S., 396. 515; [on rneta- 

 morpbism around Eoss of Mull 

 Granite], 391, 398-99. 



Flints, distrib. of, over Wealden 

 surface, 647. 



Fluorine, as an indicator of deep- 

 seated origin, 300, 308, 309, 

 327-28. 



Fluorspar, inetasomatic format. & 

 replacemt. of, 311-13 ; order of 

 deposition of, 314-15. 



Fluviatile erosion in Nyasaland, 

 227-28 ; see also Gravels, Rivers, 

 $c. 



Fogger (Hellifield district), Garb- 

 Limest. of, 541-43 w. lists of 

 foss. 



Folds, recumbent, in scbists of Scot- 

 tish Highlands, 586-620 figs. & 

 pis. xlii-xliv. 



Fold-faults, see Recumbent folds, 

 Slides, <yc. 



Folding in Ynyscynhaiarn district, 

 176 ; in Carb. Limest. of knoll 

 region, 552 et seqq., 557-59 figs., 

 560. 



Foliated intrusive rocks in Nyasaland, 

 195, 196. 



Foliation, injection of granite along, 

 383-85. 



Foreign Correspondents elected, vi ; 

 list of, xxv. 



Foreign Members, list of, xxiv. 



Forel, F. A. 0., elected For. Corresp., 

 vi. 



Forest Sandstones (Rhodesia), 369- 

 70. 



Forsterite-ligbt-mica zone around 

 granite inclusion in dolomite, 513- 

 14 & pi. xxxv (microscop. sect.) ; 

 forsterite-spinel rock inclusion in 

 dolomite, 515-16 & pi. xxxv. 



Fort William Slide, 593, 600-602 w. 

 sect. 



Foxdale Vein (I. of Man), sect, of, 

 291 ; F. granite, alteration of, 305, 

 306 fig. & chem. anals. ; F. Mine, 

 strings of native silver in galena at, 

 318 fig. 



Fullers' Earth, 52 et segq. 



Fumaroles assoc. w. Matavanu vol- 

 cano, 626, 629 & pi. xlviii. 



Gabbros in Rhodesia, 372. 

 Gabbroid dolerites of Ynyscynhaiarn 



district, age of, 182. 

 Galena, etch-figures on, 315 fig. ; 



chalcopyrite & blende enveloped 



by, 316, 317 figs. ; strings of native 



silver in, 318 figs., 319. 



Gardiner, C. I. (& S. H. Reynolds), 

 the Igneous & Associated Sedi- 

 mentary Rocks of the Glensaul 

 District (County Galwa} r ), 253-70 

 figs. & pi. xx (map), 280. 



Garnet - hornblende rock, sill - like 

 masses of, in Nyasaland, 194. 



Garnets (pyrope) from ' blue ground,' 

 &c, 373-74 & chem. anals. 



Garranagerra & Greenaun (Galway), 

 Shangort & Tourmakeady Beds of, 

 258-62 figs. ; sect, to Greenaun, 264. 



Garth Hill Beds of Ynyscynhaiarn 

 district, 162-63. 



Gelli (Carnarvonshire), sect, to Black 

 Rock Beach, pi. xvi. 



Gems fouud in Somabula gravels, 371. 



Geological Survey maps presented, 

 lxxxix, xciii, xciv ; memorial re- 

 garding price of maps, xciii. 



Gibson, W., 343. 



Glacial deposits of Ynyscynhaiarn 

 district, 183. 



Glan-byl (Carnarvonshire) sect, to 

 Pen-yr-allt, pi. xv. 



Glen Coe Quartzite, 592, 599, 601 et 

 seqq. 



Glenderamackin valley (Skiddaw), 

 grey flags, &c. of, 128 et seqq. ; 

 sketch of right bank of upper part 

 of, 130 fig. 



Glenderaterra valley (Skiddaw), meta- 

 morphic slates of, 125, 126-28. 



Glensaul district (Galway), Ordo- 

 vician of, 253-80 figs. & pis. xx-xxii. 



Glossopteris flora of Nyasaland, 199, 

 205, 209, 217 et seqq., 238-39. 



Grlossothyris bifida, 104. 



Gneisses, graphitic, &c, of Nyasaland, 

 194; pelitic, of Ross of Mull, 377 

 et seqq. ; (& altered daeites) of 

 Dandenong district, 450-69 figs. & 

 pis. xxxii-xxxiv (microscop. sects.). 



Gorlech R. (Carmarthenshire), sect, 

 descr., 413. 



Grainsgill (Cumberland), Skiddaw 

 Granite, &c. of, 118, 135-36. 



Granite of Skiddaw, & its metamor- 

 phism, 116-41 figs. &pl. xiv (map); 

 granites of Nyasaland, 195, 196 ; 

 percentages of lead & zinc in certain 

 British granites, 301 ; granite 

 of Ross of Mull, metamorphism 

 around, 376-401 figs. ; granites of 

 Rhodesia, & their assoc. w. meta- 

 morphic rocks, 362-64 ; granites of 

 Pulau Ubin & Pulau Nanas, 422 et 

 seqq., 428 et seqq. ; of Port Shep- 

 stone district, 509 ; inclusion in 

 dolomite ibid., 510-14 figs. & 

 pi. xxxv (microscop. sects.). 



