620 



GENERAL INDEX. 



Submerged peat- and forest-beds, pro- 

 bable cause of, 96-103. 

 Submergence of Caribbean region, 221 



et seqq., 536-538. 

 Submergence, late post-Glacial, Prof. 



J. Prestwich on, 329-343. 

 Subterranean erosion of the glacial 



drift, 96-103. 

 Succession, Cambrian, 244 ; Cretaceo- 



Eocene (in Trinidad), 538. 

 Sussex Coast, Pleistocene deposits of 



the, 344-364. 

 Sussex Coast Plain, rubble-drift and 



raised beach in the, 271-273. 

 Syenite boulders (Glen Spean), 23-24. 

 Systematic position of Olenellids, 240, 



242. 



Tairffynnon Conglomerate, 244 et 



seqq., 258-259. 

 Tal-y-Sarn, 251. 

 Taruba Creek, section, 522. 

 Tate, Mr. Thos., on Eecent Borings 



for Salt and Coal in the Tees Dis- 

 trict, 488-495. 

 Tavistock Square, section in, 461-463. 

 Teall, Mr. J. J. H., and Mr. J. E. 



Dakyns, on the Plutonic Eocks of 



Garabal Hill and Meall Breac, 104- 



120. 

 Tenby, raised beach and 'head' at, 



293. 

 Textularia decurrens, 515 ; T. serrata, 



515. 

 Thames, gravels south of, 29-45. 

 ' Thames Straits theory,' 41. 

 Thames V^alley, rubble-drift in the, 



311-312; origin of gravels of the, 



360. 

 Thanet, Isle of, rubble-drift in the, 



264. 

 Thecodontosaurus, Proc. 189. 

 Third Eeef Series (Witwatersrandt), 



417. 

 Thompson; Mr. Beeby, award of 



balance of proceeds of Murchison 



Geological Fund to, Proc. 32. 

 Thornhill (Dumfries), Proc. 151. 

 Tilehurst plateau, 40-41. 

 Tillicoultry, granophyric quartz-dio- 



rite near, Proc. yj, Sy. 

 Tinoporus asteriscus, 534-535. 

 Tinto Hill, intrusive rock of, Proc. 78, 



88-89. 

 Tom-na-fersit, 14. 

 Tonalite, in the W. Highlands, 104 et 



seqq. 

 Torbay, raised beach in, 279. 

 Torquay District, Lower Permian 



breccia in, 62. 

 Torridon Sandstone, 228 et seqq. 



Trachytes of the Lower Old Eed Sand- 

 stone, Proc. 75-76 ; Carboniferous, 

 Proc. 112. 



Traprain Law, Proc. 113; analysis of 

 rock from, Proc. 114. 



Tregarth, 252-253, 256 et seqq. 



Treig, Loch and Glen, 19, 20, 23. 



Tridymite crystals in vesicles in obsi- 

 dian, 441. 



Trinidad microzoic rocks, 217-219 ; 

 Mr. E. J. L. Guppy on the, 519- 

 538. 



Troisgeach, 105 et seqq. 



Tubules in Devonian Limestone, 378. 



Tuffs and agglomerates of Lower Old 

 Eed Sandstone, Proc. 78-80 ; of the 

 plateau-series, Proc. 114; of the 

 puy-series, Proc. 133-134. 



Tunnel Hill, 52. 



Turn berry Point, Proc. 82, 83. 



Turret, Glen, 15, 24, 25. 



Unmodified earths and marls of Bar- 

 bados, 172-175. 



Upchurch, rubble-drift near, 307- 

 308. 



Upheaval of Caribbean region, 221 et 

 seqq., 537. 



Upper Hale, section at, 32. 



Upper Hale type of Southern Drift, 

 30-33. 



Upper Mottled Sandstone (Bunter), 

 65. 



Upper Old Eed Sandstone, contempo- 

 raneous volcanic rocks in, Proc. 99- 

 101. 



Upton (Chester), section near, 97. 



Vaal Eiver, section from Johannes- 

 burg to, PI. X. 



Valley-drifts, relation of raised beaches 

 to, 302-303. 



Vein-quartz boulders, 34. 



Vents, Lower Old Eed, Proc. 86-91 ; 

 Carboniferous, Proc. 1 18-122, 135- 

 138; Permian, Proc. 153-158. 



Vermande Bay (Sark), 140. 



Verneuilina triquetra, 197. 



Vertebrse of Eunotosaurus, 583 ; of 

 Mesosaurus, 587 et seqq. 



Virginia Water, Bagshot Beds near, 

 58. 



Volcanic action in the British Isles, 

 history of, Proc. 60-179. 



Volcanic rocks in Nile Valley, 483- 

 484. 



Volcanic sands, etc., of Barbados, che- 

 mical composition of the, 192-193. 



Vorsaas, gneiss at, 393, 398. 



Vredefort and Potchefstroom districts, 

 geology of the, 432-433. 



