386* Dr. FiTTON on the Strata below the Chalk. 



DORSETSHIRE, (103.)— (120.), p. 206—233. 



Isle of Purbeck ; PI. X. a. Nos. 8. and 9., and X. b. fig. 6. and 7. General arrangement and 

 distribution of strata ; list at Worbarrow Bay, (103.), p. 206. 

 Purbeck strata; thickness, (104.), p. 208. ; remarkable appearance near Swanage, p. 209, note. 

 Portland-stone, (105.), p. 210. Portland-sand, (106.), p. 210. 

 Section at Emmet's Hill, p. 211. PI. X. b. fig. 5. and 6. 

 Kimmeridge-clay, (107.), p. 212. 

 Coast west of Purbeck; General structure and stratification from Purbeck to Portland Island ; 

 great disturbances, (108.), p. 214. Sections to Whitenore, (109.), p. 215, and note. Lulworth 

 Cove, -p. 216; Man-of-War Coj;e, Plates X. a. Nos. 8. and 10. ; X. b. fig. 7. and 8.; p.217. 

 Isle of Portland. Authorities, (110.), 217.; Section and Detail of stratification, (111.), 

 p. 218.; large silicified trunks, Wood-cut, pp. 221, 222. ; slices for microscope, p. 222, note. 

 Two beds containing Cycadeae ; above the " Cap ", p. 222. ; and beneath it, p. 223 ; large spe- 

 cimen, 223, note. General remarks; plants either Coniferae, or Cycadeae; and silicified 

 amidst calcareous matter, (212.), p. 225. 

 Order of deposits, (113.), p. 225.; supposed analogy to phenomena at the mouth of the 

 Indus, (114.), p. 226. The quarries in Portland ought to be frequently examined, (115.), 

 p. 227. Portland strata on the opposite coast of France, (116.), p. 227. 

 Fossils of the beds below the chalk, on part of the Coast of Dorsetshire, (117.), p. 228. 



DEVONSHIRE, (118.)— (123.), pp. 233—242. 



General structure, (118.); subdivisions of coast to the east not discernible, p. 233. 

 Berehead, Whitecliff, p. 234,, Blackdown Hills, (1 19,), p. 235.; Sithestone pits, (120.), p. 236. 

 Beds beneath green-sands, (121,), p. 238, 

 Fossils of the Blackdown pits; their abundance and general characters, (122.), p. 122. ; Mr. 



Miller's collection ; Plates XV. a., XVI,, XVII,, and XVIII,, p, 239. 

 List of Fossils of Blackdown, and some other places in Devonshire, (123.), pp. 239 — 242. 



WILTSHIRE, (125.)— (142.), pp. 243—269. 



South Wiltshire : — Blackdown hills to Shaftesbury, (124.), p. 243. 

 Vale of Wardour ; Anticlinal line, (125.), p. 244. ; descriptions of sections, (Map, PI. VII. 

 fig. 3.; and PI. X. a. No. 13.); General structure, (126.), p. 244. 

 Details of strata ; C/iaZA:, (127.), p, 243. ; Up-per green-sand, (128,), p. 246. Gault, section 

 at Ridge, (129,), p,247,; Lower green-sand, (130,), p. 248. Wealden, {\Z\.), p, 248, 

 Purbeck strata ; sectional lists, Dallard's, Dashlet, Chicksgrove, Wockley, (132,), pp, 249 

 — 253,; junction of Purbeck and Portland formations, (133.), p. 253. ; petrified trees, 

 upright, (134.), p. 254. ; Portland strata, (135.), p. 254. 

 Stourhead; supposed section, (Wood-cut), (136.), p. 256. 

 Vale of Warminster; (137.), p. 257. 

 List of Fossils of the Vales of Wardour and Warminster, (138.), p. 257. 



North Wiltshire : — Devizes, Calne, Sections by Mr. Lonsdale, (139.), p. 261. 

 Vale of Pewsey ; Dr. Buckland's valleys of elevation, (140.), p. 263. 



Swindon ; general structure, (141.), 264. ; contact of Lower green-sand and Portlandformation, 

 (Wood-cut), 265. ; sectionat the great quarry, 266.; great nodules in the Portland-sand, 267 . 

 Fossils of the strata below the chalk, in part of iVor^A Wiltshire, (142.), p. 267. 



