INDEX. 



753 



Llandeilo Flags,, trilobites of referred to, 222, 279 et seq., 332, 



356 et seq., 397 et seq. 



• , described, 662 et seq. 



Llandeilo-fawr, dislocations of carboniferous limestone east of, 



165. 



■ — , flags and trilobites at, 355. 



— , change of direction of Towy river, 519. 



Llandibie, edge of South Welch coal-field, (PI. 34-. f. 8.), 72L 



Llandovery, Old Red Tilestones and fossils near, 182, 602 k 



— — — , Upper Silurian Rocks near, 348. 



— > Lower Silurian Rocks of, 350 et seq. 



- - ■ concretions and slaty cleavage in Cambrian Rocks 



near, 360, 361. 



■ , sections near (Pi. 34. f. 1—5.), 719. 



, deflection of Towy near, 519. 



, organic remains in Silurian Rocks, 351, 636 et seq. 



Llandrindod Hills, bedded and other trap rocks of, 324 et seq. 



, sections across (PL 33. f. 5, 6.), 719. 



, mineral wells of, 329, 335. 



, fragments drifted from, 515. 



Llandwror, Caermarthenshire, Caradoc Sandstone, 396. 



Llandybie, Caermarthenshire, thickness of carboniferous lime- 

 stone near, 157. 



Llanerst, near Hyssington, Salop, trilobite shale, 272. 



Llangadock, Caermarthenshire, tilestone of Old Red near, 181. 



, Cambrian Rocks near, 359. 



, section near (PI. 34. f. 5.), 719. 



■ , bowlders brought to by the river Sewdde, 561. 



Llangathen Hills, Llandeilo, calcareous rocks of, 356. 



Llangibby, near Usk, Old Red Sandstone and Silurian Rocks, 

 438, 439, 440. 



Llangyndeyrn, Caermarthenshire, carboniferous limestone (PI. 

 34. f. 9.), 157, 720. 



Llangynog, Montgomeryshire, eruptive line near, 365. 



Llanhowel, Radnorshire, vertical Old Red Sandstone, 193. 



Llan pump sant, Caermarthenshire, note, 369. 



Llan-rhaidr, Denbighshire, transition from Silurian to Cambrian 

 (PI. 32. f. 9.), 307, 357, 718. 



Llansadarn Mountain, Caermarthenshire, Cambrian conglome- 

 rates, 361. 



Llansaintfraed, Radnorshire trap, 324. 



Llanstephan Castle, Caermarthenshire, old red cornstone (PI. 



34. f. 10.), 176, 720. 

 Llansylin, near Oswestry (PI. 30. f. 14.), 715. 

 Llanvorda, hills of, bounding the Oswestry coal-field, 141. 

 Llanwyth, near Builth, Lower Silurian fossil, 638. 

 Llanymynech, near Oswestry, calcareous conglomerate near to, 



49. 



, Lower New Red Sandstone, 142. 



•, carboniferous limestone of, 145, 



146. 



, mines in, 732. 



Llanwrtyd Hills, Cambrian Rocks at, 359. 



Wells, porphyritic greenstone and altered rocks, 



336, 343 et seq. 

 Lloyd. See Lhwyd. 



, Dr., of Ludlow, discovers fishes in the Old Red Sand- 

 stone, 180, 587—596. 



, fossils of Ludlow Rocks, 198, 251. 



, on fissures in the Ludlow Rocks, 249. 



, analysis of mineral water, 252. 



, bones of extinct quadrupeds, &c, in fis- 

 sures of Ludlow Rocks, 553. 



■ , on the bone-bed of Ludlow, 606. 



Lloyd, Dr., of Ludlow, shells of Ludlow Rocks collected by, 



619, 632 et seq. 

 , Mr. Duppa, 249. 



-, organic remains collected by him, 553. 



— — — , the Rev. H., polished limestone, 156. 



- — • — " — • 1 — , fossils collected by, 364. 



Llwynymain, near Oswestry, faults in coal measures, 147. 

 Llwyn-Madock trap, 324-. 



Lhywd, Rev., a genus of coral first determined by, 107. 

 — - — — first describes trilobites, 645, 659. 

 Logan, Mr. W. E., map of South W elch coal-field, xxix. 

 Long Lane Quarry, Caradoc Sandstone (wood-cut), 218. 



, fossils at, 636 et seq. . 



Long Mountain, Salop, Upper Silurian Rocks and fossils of, 269, 



301, 617 et seq. 



— — , Lower Silurian Rocks near, 303. 



, section across (PL 32. f. 2.), 717. 



— , northern drift absent, 529. 



, direction of the strata E.N.E., W.S.W., 



569. 



Long's Quarry, Gloucestershire intrusive trap, 460. 

 Longden, near Shrewsbury, coal measures, 90, 94. 

 Longdon' Heath, Worcestershire, lower lias, 19, 20, 29. 

 Longdon upon Terne, Salop, gravel near, 560. 

 Longhope, valley of, Gloucestershire, 443, 444. 

 Longmynd Hills, Cambrian Rocks, 90, 92, 94, 255, 258, 267. 



, sections across (PL 32. f. 1.), 717. 



, trap rocks (wood-cut, and PL 32. f. 1.), 260. 



, drift near to, 514. 



■ , parallel to the Berwyns, 568. 



Longnor, Salop, Lower New Red Sandstone and coal, 62, 93, 

 94. 



Longwood coal, Salop, 93. 



Lonsdale, Mr. W., map of the oolite escarpment, xxix. 



, on the oolitic series in Gloucestershire, 13, 449. 



, microscopic shell of coal measures, 84. 



, corals of carboniferous limestone, 108. 



, section of upper limestone shale, 158, 452. 



, on faults, 166. 



■ , on cleavage and stratification, 400. 



, Silurian corals, 214, 582, 586, 675 et seq. 



i described, 586. 



, on fishes of Old Red Sandstone, 587. 



Lordstone Hills, Shelve, bedded trap and Silurian Rocks, 271. 



Loton Park, Salop, new red conglomerate, 49. 



Low's Hill, near Hereford (see Bartestree), trap dyke in Old 



Red Sandstone, 185. 

 Lower Harcott, Salop, coal, cornstone, &c, 132, 133, 178. 

 Lower Holycott, Forest of Wyre, pyritous coal, 131. 

 Lower House, Newent, coal-pits at, 153, 154. 

 Lower Lias Shale. See Lias. 



Lower Lickey, Worcestershire, nucleus of and direction, 569. 

 Lower Ludlow Rock. See Ludlow Rock. 

 Lower New Red Sandstone of Worcestershire (PL 29. f. 10.), 54, 

 714. 



of Staffordshire (PL 37. f. 1.), 56, 



466, 723. 



of Shropshire (PL 29. f. 9.), 58, 713. 



, resemblance to Old Red Sandstone, 



55, 60. 



-, absent in South Gloucestershire, 541. 



, organic remains of, 56. 



, of central counties, compared with 



that of Durham, 57. 



