Dale, T. N., ref. 53 Daly, R. A., 18, 33, 125, 127, 128 Dana, J. D., 30 Darwin, C., 25, 90, 128, 145, 156 Daubrée, A., 66 D'Aubuisson de Voisins, 145 David, T. W. E., ref. 57 Dedolomitisation, 35 De la Beche, H., 18 Delesse, A., ref. 92 Derbyshire, 48, 73, 97 Desert sands, 68, 71 Dewey, H., 117, 130 Diatoms, 40 Differentiation in igneous rocks, 128 Dinaric Alps, 16, 23, 52 Diorite, 132 Doelter, C., 18, 31, 125, 130, 154 Dolerite, 132 Dolinas, 50 Dolomite, 12, 26, 29, 30 Donegal, Co., 137, 150, 153 Down, Co., 74, 137 Dreikanter, 71 Drumlins, 98, 102 Durham, dolomite of, 35 Durocher, J., 127 Dwyka Conglomerate, 103 Dykes, 110, 118, 137 Dynamo-metamorphism, 144 Eclogite, 148 Edinburgh, 143 Egypt, 22, 64, 68 Ehrenberg, C. G., 5, 20 Epidiorite, 147 Eurite, 132 Eutectic proportion, 109 Exfoliation of granite, 140 Felsitic structure, 108 Ferromagnesian minerals, 109 Fiji Is., 40 Fingal's Cave, 116 Finland, 159 Flagstones, 69 Flett, J. S., 117, 130 Flint, 38, 62; gravels, 74 Flocculation of clay, 80 Flow-cleavage, 92 Fluidal structure, 120 Foliation, 90, 145 Foraminifera, 20 Forehammer, G., 29 Fracture-cleavage, 92 Freshwater molluscs, 23 Fuji-yama, 134 Funafuti atoll, 19, 26 Fundamental gneiss, 158 Fusulina limestone, 21 Gabbro, 132, 142 Gardiner, C., 29 Garwood, E. J., 35 Geikie, A., 117, 138, 142 Giant's Causeway, 116 Gilbert, G. K., 123 Glacial gravels, 98 Glaciers, arctic, 98 Glassy igneous rocks, 110 Glauconite in chalk, 20 Globigerina-ooze, 20 Gneiss, 122, 152, 158, 161 Gordon, M. Ogilvie, 27 Granite, 132, 138 Granodiorite, 132 Great Salt Lake, Utah, 15 Great Whin Sill, 136 Greenly, E., ref. 106 Gregory, J. W., 117 Greywacke, 58 Grund, A., 50 Guppy, H. B., 40 Halimeda, 19, 29 Hall, A. D., 81 Harker, A., 89, 107, 125, 128, 130, 149 Harlech Beds, 74 Hawaii, 106 Hawes, G. V., 126 Hebrides, 116, 135, 152, 161 Hegau, the, 135 Henry Mountains, Utah, 123 Hercegovina, karstland, 14, 52 Highlands of Scotland, 76, 143, 161 Hinde, G. J., 38, 62 Holland, P., 83, 90 Hornblende-Schist, 147 Horne, J., ref. 106 Horwood, A. B., ref. 8 Howe, J. A., 13 Hutton, J., 41, 104, 122, 158 Hydrozoa, 25 Iddings, J. P., 108, 115, 125, ref. 59 Igneous Rocks, 103 India, 140 Intermediate igneous rocks, 127, 132 Intrusion of igneous rocks, 124 Intrusive sheets, 122, 136 Irish Channel, limestone in, 17 Iron-bacteria, 61 Iron Pyrites in muds, 85 Jajce, 16 Jensen, H. T., ref. 81 Judd, J. W., 6, 42, 68, 104, 130, 154 Jukes-Browne, A., 40 Jura Mts., 46 Kalahari desert, 41, 63 Kaolin, 87 Karlsbad, 14 Karst, 49 Katzer, F., 16 Kerry, 76 Klement, C., 31 Knoll structure, 28