Geikie, Sir Archibald, on scenery of a western plateau, 156 "Generalised types," 150 Geography of Wealden period, 96; of Cretaceous period, 141, 147; of Eocene period, 149, 159, 160; of Miocene period, 161; of Pliocene period, 163 Giants, stories of, founded on discoveries of bones, 40, 155, 195-198, 220, 225 Glyptodon, 189 H Hadrosaurus, 97 Harrison, Mr. J., discovers Scelidosaurus, 105 Hawkins, Mr. T., his collection of fossil reptiles, 41; his books, 40 Hoffman, 134 Home, Sir Everard, 38 Hoplosaurus, 74 Humboldt, 18 Huxley, on Dinosaurus, 63, 64, 77, 85, 87; on origin of birds, 64 Hylæosaurus, 103 I Ice Age, or Glacial Period, 163, 197, 229 Ichthyornis, 109 Ichthyosaurus, 33; Scheüchzer on, 38; droppings of, 44; I. tenuirostris, 44, 264; Owen on habits of, 45; eyes of, 46; jaws of, 48; vertebræ of, 49; ancestry of, 50; part played by, 50; tail-fin, 49; range of, 51; Sauranodon, 51; toothless forms of, 51. Vid. Cuvier. Iguana, teeth of, 92 Iguanodon, discovery of teeth, 90; Dr. Wollaston, 91; origin of name, 92; jaws of, 93, 94; food of, 96, 101; discovery of Belgian specimens, 98; figure of skeleton, 100; impressions of feet, 102; thumb of, 101; habits of, 103; restoration by W. Hawkins, 104 Ilia, 113 Imperfection of the record, 20 Impressions, of leaves, 12; of cuttle-fishes, 13; of jelly-fishes, 13; of fish-lizards, 47 and Appendix V. Irish Elk, 240 K King Crabs, habits of, 31 König, 38 L Laramie beds, 116 Lariosaurus, 59 Legends. Vid. Giants. Leidy, Professor, 143 Leiodon, 142 Lias rocks, 35, 38, 40, 43, 47 Lyell, Sir Charles, on floods, 17; on ideas of the ancients, 34; on sudden destruction of fish-lizards, 51; on tracks in Connecticut Sandstone, 81; on Mammoth, 213 M