INDEX. 



765 



Tasley, Salop, section of (PI. 29. f. 12.), 714. 



Tavern Spite, Pembrokeshire, Old Red Sandstone (PI. 35. f. 6.), 



385, 387, 396, 722. 

 Taylor, Mr. John, lead mines of Great Britain, 731. 

 Tearson, Pembrokeshire, trap, 395. 

 Tedstill, Salop, coal formerly worked at, 131. 



, Pradoe copper ores in New Red Sandstone, 297. 



Tees River, basalt near sources of, 76, 77. 

 Teme, River in the Silurian Region, xxxi. 

 , Old Red Sandstone of (PI. 31. f. 5. and PI. 36, f. 3.), 



174, 178, 180, 722. 

 , trap rocks of, 186, 419. 



, Ludlow Rocks and Aymestry Limestone, Silurian 



Rocks of, 203, 212. 



. , gorge of, near Ludlow, fault, 237 — 239. 



, gorge of, Worcestershire, Lower Silurian Rocks, 410. 



, course and detritus of, 511, 513 — 519. 



escapes by fractured gorges, 549, 550. 



Tenbury, cornstone of Old Red Sandstone, 177, 178. 



, drift near to, 514. 



, alluvial terraces of, 550. 



, fishes in Old Red Sandstone of, 587. 



Tenby, dislocations of culm bearing strata, 373. 



, cliffs, carboniferous limestone, 384. 



Ten yard coal of Staffordshire, 469. 



Tern River, Salop, 560. 



Terrasson, France, coal plants of, 85. 



Tettenhall, near Wolverhampton, calcareous conglomerates, 48. 

 Tewkesbury, Lower Lias, 19. 

 , mineral waters of, 35. 



, supposed extent of the ancient Avon near, 557. 



Thames, upper course of, 514. 

 , estuary of, 546. 



Thelodus, new genus of fossil fish in Upper LudlowRock, 605, 606. 

 Thomson, Dr., coal-field near Birmingham, 463, 470, 480. 

 Thornbury, Gloucestershire, Dolomitic Conglomerate, and Old 



Red Sandstone (PI. 36. f. 18.), 171, 182, 451, 454, 724. 

 Tibberton, Gloucestershire, Keuper, 29. 

 Tibur, travertine abundant in the neighbourhood of, 565. 

 Tides, transporting power of, 537. 

 Tier's Cross, Pembrokeshire, trap, 403. 

 Tilestones in Oolite, 13. 



, limestone of the Lower Lias shale, 21, 23. 



, Old Red Sandstone (PI. 31. f. 1.), 181. 190. 



, organic remains of, 183, 602. 



, Caradoc Sandstone, 218, 341. 



Timmin's Hill, Dudley, columnar basalt, 497, 498. 

 Timmins, Mr., 500. 



Tin Mill, Ludlow, Old Red Sandstone and organic remains, 181, 

 599. 



— , fossils at, 603. 



Tinker's Hill, near Ludlow, 239, 240, 241. 

 Tintern Abbey, Carboniferous Limestone and Old Red Sandstone, 

 160, 172. 



Tin-y-coed, Radnorshire (wood-cut), absurd trials for coal, 328. 

 Tipton, Staffordshire, coal measures (PI. 37. f. 2.), 471, 725. 

 Titanium in coal measures of Coalbrook Dale, 103. 

 Titterstone Clee, Salop, coal-field, 112, 113, 121, 508. 



sections of (PI. 30.), 715 et see/. 



, millstone grit and carboniferous lime- 

 stone, 117—121. 



, basalt, 129. 



, organic remains of, 148. 



. , Old Red Sandstone, 174, 180. 



Titterstone Clee, Salop, direction of, 571. 

 Todlethir, or Taudley Hill, Montgomeryshire, 276. 

 Tortworth, Gloucestershire, Dolomitic Conglomerate of, 46, 450- 



, Old Red Sandstone of, 171, 453, 454. 



Terrace, view from (wood-cut), 447- 



, Lias of, 449. 



, New Red Sandstone and Dolomitic Conglomerate of, 



46, 450. 



, Coal Measures and Carboniferous Limestone of, 452. 



, Old Red Sandstone of, 453. 



, Silurian Rocks of, 456, 461. 



, fossil shells, 636, 643. 



, trap rocks of, 457. 



, dislocations and denudations of, 462. 



district, its anticlinal line, direction of, 446, 569, 570. 



, sections near (PI. 36. f. 18—22.), 723. 



Townsend, Rev. Dr., on transported materials, 514. 

 Townson, Dr., compound sandstone of, 226, 258. 

 Towy, river, sections across left bank of (PI. 34. f. 2. et seq.), 

 157, 158, 167, 719. 



r, vale of (sketch of), 347. 



, Llandeilo formation, banks of, 355. 



■ , course of and mouth, 511, 519, 521, 561, 568. 



Trachyte, 69. 



Trafgarn Hill, Pembrokeshire (PI. 35. f. 1.), 398, 399,402, 720. 

 Traherne, Mrs., drawings by, 336, 343, 344, 345. 

 Traill, Dr., fossil fishes in Old Red Sandstone, 601. 

 Transition. See Passage. 



Rocks, term why disused in this work (see Silurian 



and Cambrian), 6. 



Trap-tuf. See Volcanic Grit. 



Trap, conical mass of, in Titterstone Clee Hill, 129. 



of Kinlet, 137. 



of Arley and Shatterford, 137. 



, red and porphyritic, of Wyre Forest, 138. 



, of Abberley Hills, 419. 



. , of Clent and Lickey Hills, 496. 



of Bartestree and Brockhill, 182. 



of Caer Caradoc, 225. 



of the Wrekin, &c, 232. 



of the Longmynd, &c, 258 et seq. 



near Shrewsbury, 264. 



of the Corndon Hills, Salop, 273. 



of Montgomery, &c, 287. 



of the Breidden Hills, 290. 



of Radnorshire, 317, 335. 



of Brecknockshire, 343. 



of Caermarthenshire, 363. 



of Pembrokeshire, 401. 



of the Malvern and Abberley Hills, 41 7o 



of Tortworth, 457. 



of the Dudley coal-field, 497. 



rocks, their volcanic origin, 8. 



, divided into subaerial and subaqueous, 68. 



, bedded or contemporaneous ; " volcanic grit," ori- 

 gin of, 76. 



. — ■ in the Lower New 



Red Sandstone and coal measures, 468. 

 , ■ — — . — in the Lower Silurian 



Rocks, 229, 269, 292, 319, 324, 365, 418. 

 in the Cambrian Rocks, 



76, 256, 401. 



• , intrusive or posterior, in the New Red Sandstone, 



41, 78, 294. 



5 E 



