Ascension, 36 Ashangi, volcanic series of, 192 Atmospheric effects of Krakatoa eruption, 213-214 Auckland district, volcanoes of, 147 Auvergne, volcanic regions of, 14, 16, 92 _et seq._ Azores, 32 Ball, Sir R. S., 242, 244 Basalt, 260 Blanford, W. T., 188, 189 Bonneville, Lake, 141-142 British Isles, Tertiary volcanic districts of, 154 _et seq._, 227; pre-Tertiary volcanic districts of, 196 _et seq._ Buch, L. von, 6, 11, 24 California, volcanoes of, 140 Callirrhoë, springs of, 133 Cañon, the Grand, 138 Cantal, volcanoes of the, 99-101 Cape Colony, Basalts of, 194 Charleston earthquake, 218, 222, 224 Chambers, G. F., 246 Charnwood Forest, 198 Chimborazo, 18 Clermont, vale of, 96-97 Clinkstone, 263 Cordilleras of Quito, 25 Cotopaxi, 16-18, 24, 26 Crater-cones, Lava, 19 Crateriform cones, 13 Craterless domes, 15 Dana, Prof. J. D., 19, 39, 249 Darwin, 28, 30 Darwin, Prof. G. H., 9, 231 Daubeny, 7, 61, 69 Davison, C., 9, 231 Davy, Sir H., 11 Deccan trap-series, 187 _et seq._ Demavend, Mount, 24 Diabase, 262 Diorite, 261 Dolerite, 261 Domite, 263 Dore, volcanoes of Mont, 100-101 Doughty, C. M., 127 Durocher, 232 Dutton, Capt. C. E., 9, 220, 222 Dykes in Ireland, 169-170 Earthquakes, 217 _et seq._ Errigal, 10 Etna, 14, 61 _et seq._, 229 Fingal's Cave, 185 Forbes, D., 27 France, extinct volcanoes of, 92 _et seq._ Gabbro, 261 Gardner, J. S., 156 Geikie, Sir A., 8, 29, 143, 156, 160, 169, 172, 176, 177, 196 Giant's Causeway, 165-166 Granite, 264 Granophyre, 264; of Mull, 174 Green, Prof. A. H., 194 Hatch, Dr., 260 Haughton, Prof., 68 Haurân, volcanoes of the, 22, 129 Haute Loire, volcanic districts of, 101-105 Hawaii, volcanoes of, 39, 249, 251 Hecla, 32 Herschel, Sir J., 244 Hibbert, Dr. S., 6, 114, 124 Hochstetter, F. von, 147 Hopkins, 171, 217 Hull, Dr. E. G., 110 Humboldt, A. von, 20, 25 Hutton, James, 5 Iceland, volcanoes of, 30-32 Ireland, volcanic Tertiary rocks of, 154 _et seq._ Jaulân, 129 Johnston-Lavis, 52 Jordan valley, 126 _et seq._, 226 Jorullo, 24 Judd, Prof., 8, 68, 69, 71, 172, 178, 208 Krakatoa, eruption of, 206 _et seq._ Kurile Islands, volcanoes of, 28 Laacher See, 121-123 Lampophyre, 262 Lancerote, 34 Lasaulx, Prof. von, 68 Lavas, relative density of, 232-234 Lima in 1746, earthquake of, 222 Lipari Islands, volcanoes of, 69 _et seq._ Lisbon, earthquake of, 221 Lister, J. J., 38 Lunar volcanoes, 236 _et seq._ Lyell, Sir C., 30, 62, 78, 217 Mackowen, Col., 74 Magdala, volcanic series of, 192-193 Mallet, R., 9, 217 Mauna Loa, 19, 39, 249 Mica-trap, 262 Milne, Prof., 28, 218, 253 Moab, volcanic regions of, 132 Moon, volcanoes of, 236 _et seq._ Monte Nuovo, 85 Mull, 172 _et seq._ Neapolitan group of volcanoes, 28 New Zealand, volcanoes of, 146 Obsidian, 264 Ocean waves of seismic origin, 208, 220 O'Reilly, Prof., 9, 219 Orizaba, 21 Ovid, 3 Pacific, volcanic islands of, 37