768 



INDEX. 



Woodbury Hill, Worcestershire, trap, coal and Upper Silurian 



Rocks (PL 36. f. 3.), 53, 135, 187, 410, 412, 419, 722. 

 Wood-cuts, list of, xxii. 



Woodfield, Radnorshire, Wenlock Limestone, 314, 322. 

 Woodford Green, trap and Caradoc Sandstone, 459, 460. 

 Woodford Hill, Caradoc Sandstone, 456. 



Woolhope, valley of, elevation of Silurian Rocks (PL 36. f. 9 and 

 96.), 186, 427—437, 723. 



, ancient dislocations of, 431. 



i , modern landslip, or the Wonder, 434. 



, denudation, 436, 516. 



, anticlinal line of, 438, 442, 443,448,461,486. 



, compared with the Wren's Nest, 486. 



■ , line of elevation compared, 549, 569. 



, organic remains of, 430, 608, 622 et seq. 



Woolston, Salop, Caradoc Sandstone, 218. 



Wooltack Park, Pembrokeshire, Upper Cambrian Rocks, 392, 394. 



AVorcester, Vale of, Lias, 13, 16—21. 



, saliferous district of, 31. 



, city, Natural Llistory Society of, 414. 



, Northern drift in the Vale of, 530, 532, 533. 



, Vale of, probable condition and climate of when sub- 

 marine, 524, 534, 557. 



-, gravel and bones in, 553, 554. 



Worcestershire, New Red System, 28 — 56. 

 , mineral springs of, 33. 



: , Keuper Sandstone, with organic remains, 29, 64, 



727. 



-, Old Red System, 170, 175, 177. 



Worcestershire Beacon, Malvern Hills, 418. 



■ , carboniferous strata of, compared, 507, 508. 



, north-west of, local detritus of,&c.,510, 527, 528. 



, direction of the rocks in, 569. 



, fishes in Old Red Sandstone of, 587. 



Worsel Wood, Radnorshire, trap rocks (drawing), 318, 319. 

 Worthen, Salop, 269. 



Wotherton, Montgomeryshire, trap and veinstones, 269, 273. 

 Wotton-under-Edge, Gloucestershire (PL 36. f. 18.), 449, 724. 

 Wrekin, Salop, coal near, 81, 93. 



, trap rocks of, 99, 106, 109, 111, 225, 232, 363. 



, altered sandstones on flanks of, 227, 495. 



, northern drift upon the slopes of, 529, 531, 535. 



, sections to (PL 29.), 714 et seq. 



Wren's Nest, Dudley, Wenlock Limestone (sketch), 100, 483, 

 485, 486. 



, section of (PL 37. f. 2.), 725. 



, direction of the joints, 247, 491. 



, organic remains at, 622 et seq. 



Wrexham, coal measures near, 148, 



— ' , northern drift near, 528. 



Wright, Messrs., map of part of Shropshire, xxix. 



, description of the Clee Hills, 112. 



Wrockwardine, Salop, trap of, 234. 



. — ; section near (PL 29.), 713. 



Wroxeter, Salop, Lower New Red Sandstone, 62. 



Wye, near Chepstow, gorges of, 158, 159. 



, Old Red Conglomerate, 170, 172. 



, Cornstone group, banks of near Hay, 177. 



, Upper Silurian Rocks on banks of, 312, 315, 336, 340. 



, near Builth, altered Lower Silurian and trap rocks, trans- 

 verse section (wood-cut), 332, 333. 



, section on banks of, from Rhaydr to Herefordshire (PL 33. 



f. 7.), 720. 



■ , plain of, argillaceous alluvium, 431. 



, coarse drift of, 512, 515. 



, its tributaries and course, 511, 521, 550. 



Wyre Forest, coal-field of (PL 30. f. 1, 2, 3, 4, 9.), 54 et seq., 714. 



Yarrell, Mr. on spines of fishes, 597. 



Yat Hill, Old Radnor, trap and altered rock, 320. 



Yates, Rev. J., description of calcareous conglomerates, 47. 



— of red grit, &c, near Oswestry, 145. 



, on the geology of the central counties, 5. 



, on the Caradoc, 226, 227. 



, on the Dudley coal-field, 463, 468. 



, on the Lickey quartz, 492, 494. 



— , on the Rowley Rag, 498, 499. 



, on saline springs at Brierly Hill, Dudley, 507. 



Yatton Hill, near Ludlow, spring, 251. 



Yeaton, Herefordshire, axis of Woolhope, 442. 



Yechad, west of Knighton, flagstones of, and fossils, 301, 315, 



617 et seq. 

 Yeo Edge. See View Edge. 

 Yorkshire, Lower New Red Sandstone of, 66. 



, Coal Fields, 85, 88, 113. 



, Fossil Flora of, Oolite referred to, 156. 



— , Carboniferous Limestone referred to, 156. 



Yr-alt, near Welchpool, strata well exposed in the hill of, 301. 

 Yrfon, banks of, 341, 344. 



Yscir-fawr andfach, streams traversing the Brecon anticlinal, 338. 



Zechstein, equivalent of the Magnesian Limestone, 46, 65. 

 Zinc, sulphuret of, in coal measures of Coalbrook Dale, 103. 

 Zoological distinctions of systems and formations, 582. 



evidences of the independence of the Silurian System, 



579, 605 et seq. 



ERRATA (Additional). 

 P. 688, 1. 8, for Robeston Walthen read Robeston Wathen. 

 P. 697, 1. 23, for transversely situated read transversely striated. 



FINIS. 



Printed by Richard and John E. Taylor, Red Lion Court, Fleet Street. 



