XXX LIST OF WOOD-CUTS. 



No. 



29. Section from Monte Calvo to the sea by the Valley of Magnan, near 



Nice . . . . . .167 



30. Diagram showing the manner in which the Crag may be supposed to 



rest on the chalk . , .173 



31. Section of shelly crag near Walton, Suffolk . . 174 



32. Section at the light-house near Happisborough . . 174 



33. Section of Little Cat Cliff, showing the inclination of the layers of 



qttartzose sand in opposite directions . . . 175 



34. Lamination of shelly sand and loam, near the Signal-House, Walton 175 



35. Diagram illustrative of the successive deposition of strata . .176 



36. Section of ripple marks caused by the wind on loose sand . 176 



37. Bent strata of loam in the cliffs between Cromer and Runton . 178 



38. Folding of the strata between East and West Runton . 178 



39. Section in the cliffs east of Sherringham . .178 



40. Section east of Sherringham, Norfolk . . . 179 



41. Side view of a promontory of chalk and crag, at Trimmingham, Norfolk 179 



42. Northern protuberance of chalk, Trimmingham , 1 80 



43. Map of the volcanic district of Catalonia . * . 184 



44. Section of volcanic sand and ashes in a valley near Olot . .187 



45. Section above the bridge of Cellent . . . 188 



46. Section at Castell Follit . . . * 190 



47. Superposition of rocks in the volcanic district of Catalonia . 1 92 



48. Map of the volcanic district of the Lower Rhine . . 194 



49. View of the Gemunden Maar . . . .195 



50. Section of the same and other contiguous lake-craters . 1 96 



51. Section of tertiary strata overly ing chalk near Dax . . 207 



52. Section explaining the position of the Eocene strata in the Bordeaux basin 209 



53. Section of Inland cliff near Dax . . . 210 



54. Position of the Miocene alluviums of Mont Perrier (or Boulade) 217 



55. Section of the fresh- water formation of Cadibona i. . 22 1 



56. Map of Auvergne, Cantal, Velay, &c. . , . 226 



57. Section of Vertical marls near Clermont . . . 231 



g|* J Superposition of the formations of the Paris basin . . 243 



60. Section of the Hill of Gergovia near Clermont . . 259 



61. Lavas of Auvergue resting on alluviums of different ages . , 267 



62. Map of the principal tertiary basins of the Eocene period . 275 



63. Section from the London to the Hampshire basin across the Valley of 



the Weald . . ' . . .288 



64. Section of the country from the confines of the basin of London to that 



of Hants, with the principal heights above the level of the sea on a 



true scale . . . , . . 288 



65. View of the chalk escarpment of the South Downs, taken from the 



Devil's Dike, looking towards the west and south-west . . 290 



