INDEX TO THE PROCEEDINGS. 
Avicula simplex, 247. 
substriata, 247. 
umbonalis, 246. 
Avon, section across the valley of a 
tributary of the, 203. 
, superficial deposits of the valley 
of the, 202. 
typical section across the valley 
of the, near Cropthorne, 204. 
Avon and Severn valleys and adjoin- 
ing districts, Mr. T. G. B. Lloyd on 
the superficial deposits of portions 
of the, 202. 
Balanophyllia, 
depth, 55. 
Balanophyllia armata, 302. 
—— qustraliensis, 303. 
campanulata, 302. 
—— cylindrica, 304. 
—— fragilis, 308. 
Selwyni, 303. 
seminuda, 302. 
tubuliformis, 304. 
Ulrichi, 304. 
Balanus, 243. : 
Ballintoy, Middle Lias blocks from, 
324. 
Ballypalidy, nature and origin of the 
ferruginous series at, 159; section 
at, 160; section in railway-cutting 
at, 161. 
Baphetes minor, 166. 
Basalt, lithomarge, and bole, table of 
analyses of, 156. 
Basalts of the north-east of Ireland, 
Messrs. R. Tate and J. 8. Holden 
on the Iron-ores associated with the, 
151. 
Bathygnathus, 39, 49. 
Beckford, section through, 204. 
Belemnites australis, 258. 
Belemnoziphius, 512. 
Belodon Plieningeri, 39, 40. 
Belumford, section at, 153. 
Billings, E., notes on some specimens 
of Lower Silurian Trilobites, 479. 
Birds, Prof. T. H. Huxley on further 
evidence of the affinity between Di- 
nosaurian Reptiles and, 12. 
Black Hill, Snitterfield, section at, 
208. 
Bleasdell, Rev. W., observations on 
modern Glacial action in Canada, 
669. 
Blisworth, Oolites of, 377; section 
from Kingsthorpe through North- 
ampton and Huntsbury Hill to, 
359. 
Bole, basalt, and lithomarge, table 
of analyses of, 156. 
Bone-bed of Suffolk, 493; Terrestrial 
distribution of, in 
Mammalia from the, 509; Marine 
Mammalia from the, 511. 
Bonney, Rey. T. G., on the geology of 
the Lofoten Islands, 623. 
. Borrowdale, lower portion of the 
green-slates and porphyries in, 
600, 601; section from Derwent- 
water to, 601. 
Boulder-clay, notes on ancient, in 
Natal, by Dr. Sutherland, 514. 
Boulder-clay, Mr. 8. V. Wood, junr., 
on the relation of the, without chalk, 
of the north of England to the 
great chalky Boulder-clay of the 
south, 90. 
Boulder-clays, 694. 
Box-stones of Suffolk, 499. 
Brachiopoda, Mesozoic, from Queens- 
land, 236. 
Brachiopoda, Mr. 'T. Davidson on the, 
hitherto obtained from the ‘“ Peb- 
ble-bed” of Budleigh-Saltteton, near 
Exmouth, in Devonshire, 70. 
Brandon Hill, section from Bristol 
across, to the Reptilian Quarry on 
Durdham Down, 188. 
Bredon Hill, section from, to Cra- 
combe Hill, 204. 
Brick-clays, 694. : 
Bridlington, fossils of the Glacial de- 
posit at, 92. 
Bristol area, Mr. R. Etheridge on the 
geological position and geographi- 
cal distribution of the Reptilian or 
dolomitic conglomerate of the, 174. 
Bristol, sections from, to the Reptilian 
Quarry on Durdham Down, 188. 
Sst, Dinosauria from the Trias of, 
Britain, glaciation in, 693. 
Brown, Dr. R., on the physics of Arctic 
ice, as explanatory of the glacial re- 
mains in Scotland, 671. 
Brunswick, Necomian of, 343. 
Budleigh-Salterton, Mr. T. Davidson 
on the Brachiopoda hitherto ob- 
ined from the ‘Pebble-bed” of, 
(U. 
Bunzel, E., notice of a fragment of a 
Reptilian skull from the Upper 
Cretaceous of Griinbach, 394. 
Busk, G., on the species of Rhinoce- 
ros whose remains were found in a 
fissure-cavern at Oreston in 1816, 
457 
Cainozoic and Mesozoic periods, the 
physical geography of Western 
Europe during the, elucidated by 
their coral faunas, by Prof. P. M. 
Duncan, 51. 
Calamites, Sigillaria, and Calamoden- 
