840 



GEKEEAL INDEX. 



Ascot Hills, Bagshot Beds of the, 170. 

 Asbes, at Appletreeworth Farm, 697. 

 Ashgill, section across quarry, 693. 

 Ashgill shales, 660, 665, 680, 693, 



694, 700. 

 Assynt, succession of Cambrian rocks 



in, 401. 

 Atrypa flexuosa, 725. 

 1 , zone of, 661, 665, 686, 



687, 694, 700. 

 Attwood, Mr. G., on some of the Auri- 

 ferous tracts of Mj'sore province, 



Southern India, 636. 

 Auriferous tracts of Mysore province, 



Southern India, Mr. G. Attwood on 



some of the, 636. 

 Austwick Beck, Stockdale shales on, 



706. 



Bagsbot Beds of the London Basin, 

 Eev. A. Irving on the stratigraphy 

 of the, 164. 



sands, Lower, 105. 



Ball, Mr. Valentine, on some eroded 

 Agate pebbles from the Soudan, 

 368. 



, on the probable mode of trans- 

 port of the fragments of granite 

 and other rocks which are found 

 imbedded in the Carboniferous 

 Limestone of the neighbourhood of 

 Dublin, 371. 



Bangor, Pre-Cambrian rocks near, 

 533 ; Trilobites in the Upper Green 

 (Cambrian) Slates of the Penrhyn 

 Quarries, Bethesda, near, 74. 



and Caernarvon, map of the 



district between, 272. 



and Caernarvon area, Cam- 

 brian and associated rocks in the, 

 273. 



Barkham Hill, section in pits on, 176. 



Barlow, Mr. W., on the horizontal 

 movement of rocks, and the relation 

 of these movements to the formation 

 of dykes and faults, and to denuda- 

 tion and thickening of strata, 783. 



Barren Band of the Skelgill beds, 672, 

 682, 684. 



Barton, fauna of the, 618. 



, Lower, or Highcliff Beds, 587 ; 



fauna of, 588. 



Clay, or Middle Barton, 588; 



fauna of, 589. 



Cliff, section of the, 594. 



series, 579, 582 ; of the London 



area, 606. 



Barton-on-Humber, succession of Cre- 

 taceous beds at, 330. 



Basalt-dvkes in Archaean gneiss of 

 North-west Highlands, 390. 



Basement Bed of the London Clay, 

 102 ; Mollusca of the, 103. 



Bavaria, Graptolites of Stockdale 

 Shales from, 712. 



Bealloeh, section from the, across 

 Coinne-mheall to Corrie Mhadaidh, 

 421. 



Bearwood Hills, Bagshot beds of, 

 176. 



Beaufort West, intrusive trap sheet at, 

 254 ; section through, 270. 



Becton-Bunny Beds, 591 ; section of, 

 592. 



Bedford, Mr. R. Lydekker on the 

 skeleton of a Sauropterygian from 

 the Oxford Clay near, Froc. 89. 



Beinn Lice, sections through, 415. 



— — Suardal, fossils from the Lime- 

 stone of, 69. 



Belemnitella plena, zone of, in Lin- 

 colnshire, 329 ; in Yorkshire, 346. 



Belemnite-marls in Lincolnshire and 

 Yorkshire, 363. 



, minute structure of the, 357. 



Belgium, Prof. Prestwich on the cor- 

 relation of the Eocene Strata in 

 England, the north of France, and, 

 88. 



Belonostomus cinctus, 145. 



Ben Aird da Loch, section through, 

 417. 



Ben Arkle, section across, to the 

 Moine thrust-plane, 415. 



Ben Dreavie, section through, 415. 



Ben Fhuarain, section through, 424. 



Ben More, general structure of, 421 ; 

 section from the Oykel valley, 

 across, 423. 



thrust, 412, 418, 419, 422, 



423, 427, 428, 430, 431, 432, 433, 

 435. 



thrust-plane, section from 



Quinaig to the, 418. 



Ben TJidhe, section through, 418. 



Bethesda, near Bangor, Dr. H. Wood- 

 ward on Trilobites in the Upper 

 Green (Cambrian) Slates of the 

 Penrhyn Quarries at, 74. 



Birkhill Shales, comparison of, with 

 Skelgill Beds, 706, 709. 



Black Eock of Clifton, insoluble resi- 

 dues from the, 190. 



Blake, Prof. J. F., on the Cambrian 

 and associated rocks in North-west 

 CaernarTonshire, 271. 



, on the Monian system of rocks, 



463. 



Blocks, ejected, of Monte Somma, Dr. 

 H. J. Johnston-Lavis, on the, Proc. 

 91. 



Bodafon Mountain, rocks of, 499. 



