INDEX. 
vii 
27. Hajrtor, Dartmoor, Devon . . 303 
28. The Logging Stone, St. Levins 
Comwall 303 
29. Blackistone, Dartmoor . . . 304 
30. Joints in Granite, Eastern Face 
of Old Quariy, near Haytor. 305 
31. Eastern Face of New- Quarry, 
Haytor 305 
32. Portion of Eastern Face of 
New Quarry, Haytor . . . 306 
33. Outlines of Rock-basins on 
Haytor 309 
34. Spirifera convoluta, from the 
Carboniferous Limestones of 
Thornelcy 314 
35. Ideal Section of Mount Etna, 
to illustrate the theory of a 
double axis of elevation . . 318 
36. Non-parallel Lavas, Northern 
Escarpment of the Val del 
Bove 320 
37. Cm-vatm-es in the Lavas of 
Zoccalaro 320 
38. Map of Etna, the Val del Bove, 
and the Coast of Ripesto . 321 
39. Fm-rows of Aqueous Erosion 
on the Cone of Tengger . . 322 
40. Basins near the Blackistone 
Rock 369 
41. Scolithus Uneaiis, fi-om an 
American specimen . . . 388 
12. Lingula Davisii 422 
43. Olenus micrurus 423 
44. Agnostus pisifbrmis . . . 423 
45. ParadoxidesForchhammeri(?) 
from British strata . . . 424 
46. H3rmenocaris vermicauda . . 424 
47. Pai'adoxides Forchhammeri 
(of Angelin) 425 
48. Olenus bisulcatus .... 426 
49. Olenus humilis 426 
50. Olenus scarabaeoides (British 
specimen) 426 
51. Olenus scarabasoides (ofWah- 
lenberg) 426 
52. Radiating Crystals in Brec- 
ciated Ore-Vein .... 428 
53. Banded Form of Ore- Vein . 428 
54. Ossiferous Cavern, at Oreston 436 
55. Ossiferous Fissm-e, at Oreston 441 
56. Specimens, of Stem-Plates of 
Boiirgueticrinus .... 449 
57. Terebratula elongata, interior 
of Dorsal Valve of .... 472 
58. Terebratula vitrea, interior of 
Dorsal Valve of 472 
59. Terebratula hastata, interior of 
Dorsal Valve of, 473 
LIST OF PLATES. 
PLATE. PAGE. 
I. Comparative Tabular Sections of Foreign and British Upper Oolitic, 
Wealden, and Neocomian Beds 1 
II. Worm Tracks (?) from Strata near BeadneU 66 
III. Vai-ious Species of Productidae and Strophomenidse 97 
rv. Various Species of Productidas and Strophomenidas 97 
V. Phacops caudatus, from the Limestone of Dudley 160 
VI. Fossil Rain-Drops from the "Bottom-Rocks" of the Longmynd . . 182 
VII. Ripple-Marks, Sun-Cracks, Rain-Drops abraded by the Surf, and 
Worm-Holes in the Sheltered HoUows — from the " Bottom Rocks" 
of the Longmjmd 186 
VIII. Oldhamia antiqua — from Bray Head (FrontispieceJ 
IX. PateUa vulgaris and Balani, on a fragment of the Outcrop of a Lead- 
Vein from Llantrissant 247. 
X. Mvsyndy L-on-Mine, near Llantrissant 249 
XL Section of Haematite and Manganese Mine, Guai' Coch, near Bridgend 256 
XII. Various Species of Carboniferous Bracliiopoda 461 
I 
