878 
Tomes, Mr. R. F., on the Madrepo- 
raria of the White Lias of the 
middle and western counties of 
England, and of those of the Con- 
glomerate at the base of the South- 
Wales Lias, 353. } 
, on the Oolitic Madreporaria of 
the Boulonnais, 698. 
Torcross to Hope Cove, Prof. T. G. 
Bonney on the geology of the coast 
from), Le 
Tottenham-Court Road, Great Oolite 
strata in Meux’s well, 744. 
Tracks of terrestrial and freshwater 
animals, Prof. I. McK. Hughes on 
some, 178. 
Tranmere, ripple-marks at, 268. 
Treiorwerth syncline, sketch-map of 
the, 572. 
, from Ty-hen to the Archean 
west of, 574. 
Trias, general relation of the Permian 
to the, 398. 
and Dyas of Central Europe, 
Rev. A. Irving on the, 389. 
Triassic mammal (Zritylodon lon- 
ge@vus, Owen), Sir R. Owen on 
the skull and dentition of a, 146. 
strata, Mr. A. T. Metcalfe on 
further discoveries of vertebrate 
remains in, of the south coast of 
Devonshire, 257. 
Tritylodon longevus, Owen, Sir R. 
Owen on the skull and dentition of, 
146. 
Trochoseris oolitica, 719. 
Trowlesworthite, Prof. Bonney on a 
specimen of, Proc. 7. 
Ty-croes station, section from Tan-y- 
bryn to, by Llanfaelog, 193. 
Ty-hen to the Archzan west of Treior- 
werth, 574. 
Tynemouth Dyke, 233; analysis of 
the rock of, 235. 
Tywyn Ridge, plan of, 577. 
——, section from, to Llanfaelog, 
573. 
Upper Greensand in the Richmond 
well-boring, 735. 
Urnatopteris tenella, 594. 
Utriculus constrictus, 321. 
Vaginulina levigata, 769. 
Veins and dykes.in Guernsey, 416. 
Vertebral and cranial characters of 
the Crocodilian genus Plesiosuchus, 
Owen, Sir R. Owen on the, 153. 
Vertebrate animals, Mr. G. V. Smith 
on the footprints of, in the Lower 
New Red Sandstone of Penrith, 
479. 
GENERAL INDEX. 
Vertebrate remains, Mr. A. T. Met- 
calfe on further discoveries of, in 
the Triassic strata of the south 
coast of Devonshire, 257. 
Vesuvius, Mr. H. J. Johnston-Lavyis 
on the geology of, 39.° 
and Monte Somna, eruptive acti- 
vity of, 44. 
, structure of, 41. 
Views in Allan valley at Porth-clais, 
532; of quarry in Allan valley on 
north side of Porth-clais, 534; of 
quarry on roadside between Porth- 
clais and Rhoscribed, 534 ; of cliffs 
in east harbour, Porth-lisky, 540 ; 
on south side of Ogof-golchfa, 
Whitesand Bay, 543; west of 
Nun’s chapel, 296; of Carn-ar-wig 
from the north, 299; in Porth 
Hayog looking south, 305. 
Vine, Mr., and Mr. Shrubsole on the 
Silurian species of Glauccnome, and 
a suggested classification of the 
Paleozoic Polyzoa, 329. 
, on Polyzoa (Bryozoa) found in 
the boring at Richmond, Surrey, 
784. 
, on some Cretaceous Licheno- 
poridee, 850. 
Volcanic group of St. David's, Prof. 
Blake on the, 294. 
Vulcanology, Mr. H. J. Johnston- 
Lavis on, 35. 
Water-supply of the Metropolis, 756. 
Waters, Mr. A. W., on fossil Cyclo- 
stomatous Bryozoa from Australia, 
674. 
Wellington, drift-section at Ketley 
near, 267. 
Wenlock shale, Prof. Duncan on a 
new coral from the, 167. 
, Prof. P. M. Dunean on 
Cyathophyllum Fletcheri, from the, 
174 
Wensleydale, Mr. J. W. Davis on 
some remains of fossil fishes from 
the Yoredale series in, 614. 
Werra railway, sections on the, 395. 
Westward Ho!, North Devon, Mr. 
Spearing on the recent encroach- 
ments of the sea at, 474. 
Wethered, Mr. E., on the structure and 
formation of coal, Proc. 59. 
Whin Sill, Mr. Teall on the chemical 
and microscopical characters of the, 
640. 
, analyses of rocks and mi- 
nerals of the, 640-655. 
White Lias of the middle and western 
counties of England, Mr. Tomes on 
the Madreporaria of the, 353. 
