Vol. 5 i.] 



GENERAL INDEX. 



687 



well-marked Horizon of Radio- 

 larian Rocks in the Lower Culm 

 Measures of Devon, Cornwall, and 

 West Somerset, 609 & pis. xxiii.- 

 xxviii. (map, view of quarry, and 

 fossils). 



Foxdale (Isle of Man), granite & peg- 

 matite of, 143. 



Foyaite in Madagascar, 69. 



Frith Quarry (Gloucestershire), 

 section descr., 399. 



Fuller's Earth Beds (Lower Green- 

 sand) in East Surrey, 103 et seqq. ; 

 their horizon in neighbourhood of 

 Nuffield, 112; conditions of form- 

 ation, 12*2. 



Furthergill Sike(Cumberland), section, 

 133. 



Gabbro of Carrock Fell, rhombic 

 pyroxene in, 125 ; age of, 126 ; its 

 junction with the granophyre, 133; 

 atomic ratios of rock-constituents, 

 diagram, 146. 



Galley Hill (Kent), human skull and 

 limb-bones found in the Paleolithic 

 terrace-gravel, 505 & pi. xvi. ; view 

 of chalk- and gravel-pit, 520. 



Garn Fawr (Pembrokeshire), tachy- 

 lytes of, 183, 184 & pi. vi.; chem. 

 analyses, 192, 193. 



Garn Fechan (Pembrokeshire), vario- 

 lites of, 185 & pi. vi.; micropegma- 

 tite of, 187. 



Gebensdorfer Horn (Switzerland), 

 Nagelfluh of, 372 ; section, 373. 



Geikie, Sir Archibald, WoLLaston 

 Medal awarded to, xxxvi. 



Geographical Congress, International, 

 announced, xc. 



Geological Record, lxv. 



Gervillia iraonensis, sp. nov., 80 & pi. 

 ii. 



Gigantostraca, lxxii. 



Girvanella- limestones in Madagascar, 

 86 ; G. -tubules in oolitic granules, 

 197 et seqq. 



Glacial deposits in Switzerland tabu- 

 lated, 384 ; glacial submergence in 

 Scotland denied, 472 ; glacial origin 

 of Westleton shingle denied, 500 ; 

 do. of Chalky Clay of Fenland de- 

 nied, 504. 



Glaciation of Ruwenzori, 675. 



Glacier of pitch, experiments with, 

 361 ; glacier-movement along N.E. 

 coast of Scotland, map, 473. 



Glentramman (Isle of Man), crush- 

 conglomerate in and near, 577. 



Globigerina-limestone in Madagascar, 

 66, 86; Gl. -oozes, chem. composition 

 of, 322 ; the same compared with 



Tertiary and Cretaceous chalk, 326 ; 

 microscopical structure of, 327. 



Glomero-porphyritic micropegmatite, 

 162. 



Glossothyris Brebissoni, 445 ; Gl. 

 curvifrons, 446. 



Gloucestershire and Dorset, compara- 

 tive development and correlation of 

 Bajocian strata in, Tables i., ii., & 

 iii., pp. 420, 422, 426. 



Glutsch (Switzerland), lignite-deposit 

 near, 381. 



Glyndyfrdwy (Denbighshire), 121 et 

 seqq. 



Glyphodeta, name proposed, 212 ; 

 species of Murchisonia included in, 

 217 ; see also Murchisonia. 



Gneiss-rocks in Madagascar, 57 et 

 seqq. ; hornblendic & other, around 

 Ruwenzori, 670 et seqq. 



Goatswater, 41. 



Gold-nuggets, photographs of etched 

 sectious exhibited, xciii. 



Goniatites [Nomismoceras] spirorbis, 

 652; G. [Pericyclus] sp. (Lower 

 Culm), 653 ; G. [Prolecanites] mixo- 

 lobus, 652 ; G. [Pr.] sp. (Lower 

 Culm), 652. 



Goniostropha, 211. 



Goodwick Bay (Pembrokeshire), 153 ; 

 fault in, 152; Lower Llandeilo 

 slates in, 155 ; volcanic breccias in, 

 159 ; felsites from, 162 & pi. vi. ; 

 chem. analyses of same, 177, 178. 



Gordon Hill (Cornwall), radiolarian 

 rocks of, 622. 



Graaf Reinet (South Africa), lamelli- 

 branchiata from Beaufort Beds, 338 

 et seqq. 



Grainsgill (Cumberland), greisen of, 

 139. 



Granites associated with marble in 

 Natal, 53, 54 ; of Skiddaw, in re- 

 lation to greisen of Grainsgill, 139 : 

 atomic ratios of rock-constituents in 

 same, diagram, 146. 



Granite Mountain (Isle of Man), sec- 

 tion illustrating transport of 

 boulders to South Barrule, 366. 



Granitite in Madagascar, 63. 



Granitoid gneiss (?) of Ruwenzori, 675. 



Granophyre of Carrock Fell, 125 ; 

 chem. analyses of, 129, 130; variation 

 observed in, 130; junction with 

 gabbro, 133 ; atomic ratios of rock- 

 constituents, diagram, 146. 



Granules, oolitic, forms of, 197 & pi. 

 vii. ; origin of crusts around nuclei 

 in, 201 ; process of formation of, 

 204. 



' Graphic structures,' term substituted 

 for ' granophyric,' 128. 



