Murray’s Hand-book for Cornwall, p. 199. Footnote 25: Ansted, vol. ii. p. 418. Footnote 26: Whewell, Anniversary Address to Geol. Society, 1839. Footnote 27: In Memoriam. Footnote 28: Dr. Pye Smith says 140,000 feet. Footnote 29: See a valuable map of fossils published by the Christian Knowledge Society. Footnote 30: Trilobite: _treis_, three, and _lobos_, a lobe; having three lobes. Footnote 31: Bridgewater Treatise, vol. i. p. 396. Footnote 32: A fossil shell allied to the Argonauta and Carinaria. Footnote 33: “Man has no tail, _quantum mutatus_; but the notion of a much-ridiculed philosopher of the last century is not altogether without foundation; for the bones of a caudal extremity exist in an undeveloped state in the os coccygis of the human subject.” Poor _man_!—Vestiges of Creation, p. 71. Footnote 34: Sedgwick, p. 216, “On the Studies of the University of Cambridge.” Footnote 35: “My School and Schoolmasters,” by Hugh Miller. Footnote 36: “Old Red Sandstone; or, New Walks in an Old Field;” by Hugh Miller, p. 48. Footnote 37: “By mind, by hand, and by hammer.” Footnote 38: “Old Red Sandstone,” p. 66. Footnote 39: Ichthyolite: _ichthus_, a fish, _lithos_, a stone: fossil fish, or the figure or impression of a fish in the rock. Footnote 40: “Old Red Sandstone,” pp. 41, 42. Footnote 41: “Old Red Sandstone,” p. 69. Footnote 42: From _akanthos_, a thorn, and _pterugion_, the fin. Footnote 43: From _malakos_, soft, and _pterugion_, the fin. Footnote 44: 1. Ganoid, from _ganos_, splendour, because the scales are coated with a bright enamel. Footnote 45: 2. Placoid, from _plax_, a plate; sometimes large, sometimes reduced to a point; _e.g._ shark. Footnote 46: 3. Ctenoid, from _kteis_ (gen. _ktenos_, a comb); scales jagged like a comb. Footnote 47: 4. Cycloid, from _kuklos_, a circle; scales smooth and simple: _e.g._ salmon, &c. Footnote 48: From _kephalē_, the head; _aspis_, a buckler. Footnote 49: Coccosteus, from _kokkos_, a berry, and _osteon_, a bone. Footnote 50: “Old Red Sandstone,” p. 86. Footnote 51: Pterichthys: _pteron_, a wing, and _ichthus_, a fish. Footnote 52: “Old Red Sandstone,” pp. 80, 81. Footnote 53: Osteolepis: _osteon_, a bone, and _lepis_, a scale. Footnote 54: Operculum, the flap which covers the gill. Footnote 55: “Old Red Sandstone,” p. 111. Footnote 56: “Vast quantities:” let any reader go and turn over the non-bituminous shale lying on the waste heaps of every coalpit, and he will see that this is no exaggeration. Footnote 57: Capillus Veneris. Footnote 58: Corruption of _arrière-dos_, a fire-place. See a view and description of one in “A Visit to Penshurst,” in Howitt’s “Visits to Remarkable Places,” Second Series. Footnote 59: Juicy and soft, as peas, beans, plantains, bananas, &c. Footnote 60: “Ancient World,” pp. 76, 77. Footnote 61: