1060 



INDEX. 



Hornblende schist, 85§ 

 Hornblendvte, 8SS, 325, 532 

 Hornstonei 82, 540, 579§, 5S0, 5S4, 



646, 859 ; in Corniferous, with 



Protophytes, 582, 58o* 

 Horse, 54, 55, 907, 90S, 911, 912, 



914*, 927 



— type, evolution of, 912, 913*, 929, 

 931 



Horse in a vein, 330§ 

 Horse-shoe crab, 420 

 Horse-tail. See Equiseta 

 Horsetown beds, 815, 818, 820, 831, 



837 

 Horton series, 639 

 Hosselkus limestone, 757 

 Hot springs, 121, 135, 137, 152, 265, 



277, 305, 306, 318, 320, 323, 343; 



analyses of waters, 121 ; life of, 



60, 152, 308, 454 ; superficial vein- 



maliing at, 334 

 Housatonic River, 227*, 325 

 House Kange, Utah, 494 

 Hualalai Mt., 268*, 269 

 Huamampampa sandstone, 628 

 Hudson Bay, 29, 40, 442, 541, 552, 



883, 947, 948, 949 

 Hudson - Champlain trough, 537, 



572 

 Hudson epoch, 510 



— River, 212, 216, 528, 529*, 530, 

 537, 540, 541, 558, 579, 628, 734, 

 743, 744, 745 ; submarine chan- 

 nel, 18*, 745, 949; valley, 357, 

 552, 558, 559, 579, 605, 982 



Huerftino group, 893 

 Human bones, analysis of, 73 

 Humboldt Glacier, 241 ; Ranges, 



365, 733, 811, 812, 945; region, 



746, 757, 760 

 Humite, 67§ 

 Humming birds, 54, 55 

 Humus acids, 119, 122, 124§, 125, 



128, 129, 139 

 Hunan, 696 

 Hungary, Archaean in, 455; Upper 



Silurian, 573 ; Tertiary, 938 

 Hung-tse Lake, 198 

 Huron, Lake, 200, 201*, 445, 449, 



452, 493, 583, 540, 542, 552, 553, 



572, 592. 635, 947 

 Huron Cupriferous Formation, 



445 



— River, 947 



— shale, 606 



Huronia, 549 ; Bigsbyi, 551 ; verte- 



bralis, 551 

 Huronian, 407, 445, 446, 447, 448,. 



449, 450, 451, 453. 454, 458, 466, 



468, 488 

 Hurricane fault. 868*, 747 

 Hyaena, 927 ; crocuta, 1004 ; spelsea, 



1004, 1006, 1009 

 Hyffinarctos, 927 

 Hyaenocyon, 918 

 Hyaenodictis, 925 

 Hyaenodon, 918, 926; dasyuroides, 



924 ; leptorhynchus, 926 

 Hyalina arborea, 966 

 Hyalomicte, 83§ 

 Hyattella congesta, 546*, 550 

 Hybocrinus, 514 



Hybodonts, 415§, 416*, 648, 644*, 



647, 772 

 Hybodus, 772 (first), 783 ; minor, 



416*, 772 ; plicatilis, 416*, 772, 774 

 Ilydnoceras, 646 

 Hydra, 429*, 4;30 

 Hydration, 128 

 Hydraulic cement, 79§, SO, 555 ; 



limestone, 79§, 555, 592 

 Hydrocarbon, 62, 74, 124 

 Hydrocephalus, 482 

 Hydrochloric acid, 68, 278 ; from 



volcanoes, 278, 294 

 Hydrogen, 61, 62 ; from volcanoes, 



278, 287, 293, 294 

 — sulphide, 119, 124, 125, 523, 554 

 Hydroids, 140, 419, 430§, 547*, 560 

 Hydromica, 65§, 83, 318 ; granite, 



82 ; quartzyte, 82 ; schist, SO, 82, 



&1§ 

 Hydrotalcite, 453 

 Hydrozoans, 140, 418, 419, 429* 



430*§, 481 

 Hyena, 54 



Hylaeosaurus Oweni, 863 

 Hylerpeton, 682 

 Hylonomus, 682, 706 

 Hymenocarids, Upper Cambrian, 



488 

 Hymenocaris vermicauda, 481* 

 HymenophyUites, 645, 689 ; Gers- 



dorffi, 622 ; Hildrethi, 670*, 689 ; 



obtusilobus, 622 ; spinosus, 689 

 Hymenopters, 419, 679, 788, 794, 



900 (number of Florissant) 

 Hyodectes, 925 



Hyolithellus, 471, 472 ; micans, 472* 

 Hyolithes, 447, 471, 478, 481, 482, 



514, 562, 599, 621 ; Acadicus, 475* ; 



Americanus, 471,472* ; Danianus, 



475* ; gregarius, 478* ; impar, 



472*; levigatus, 482; ligea, 590; 



princeps, 472* 

 Hyomeryx, 918 



Hyopotamus, 918; bovinus, 926 

 Hyopsodus, 918 

 Hyperodapedon, 772 

 Hypersthene, 67§, 86, 87, 88 

 Hyperti-agulus, 918 

 Hyperyte, 87§ 

 Hypisodus, 918 

 Hj'pnum, 154 



Hypogeic work, 118§, 345-396 

 Hypogene rocks, 311§ 

 Hyposaurus Rogersi, 848 ; Webbii, 



848 

 Hypostome, 421 § 

 Hypsilophodon Foxi, 868 

 Hyrachus, 907 

 Hyrachyus, 918, 923 

 Hyracodon, 910, 918 ; Nebrascensis, 



910* 

 Hyracops, 917 



Hyracotherium, 913*, 918, 923, 925 

 Hyrax, 54, 55 

 Hystricops, 919 

 Hystrix, 927 



This, 928 



Ice (see also Glaciers ; "Water, 

 freezing), 231, 232; glacier, 248, 

 846 ; plasticity, 243, 244, 245 



Ice, effects on lakes, rivers, and sea- 

 coasts, 232 ; fi'actures from tor- 

 .sion, 371, 372* 



Iceberg theory of the drift, 942 



Icebergs, 241, 251-252 ; transporta- 

 tion by, 217, 230, 252 ; transported 

 by the Labrador current, 229, 239 



Iceland, 19, 48, 256, 286, 297 ; gey- 

 sers, 82, 805, 807 ; Sequoia of, 989 ; 

 volcanoes of, 297 



Ichthyocrinus Ifevis, 547*, 550 



Ichthyodectes, 862 



Ichthyopterygians, 760 



Ichthyornis dispar, 851* ; victor, 

 Sol*, 852 



Ichthyosarcolithus anguis, 886 ; 

 crassifibra, 836 ; planatus, 886 



Ichthyosaurs, 792, 797 ; Jui-assic, 

 760, 761, 790 ; number of British, 

 784 ; Triassic, 774 



Ichthyosaurus, 749, 778, 790 ; com- 

 munis, 784* ; Nordenskioldi, 792 ; 

 polaris, 792 



Ida shales, 628 



Ictops, 918 



Idaho, 28 (height) ; Cambrian in, 

 477 ; Calciferous, 501 ; Subcarbon- 

 iferous, 639, 647 ; Truissic, 746, 

 747, 757 ; Jurassic, 747, 760 ; Ter- 

 tiary, 988 



Idocrase, 66§, 313 



Idonearca vulgaris, 854 



Igaliko, Firth of, 850 



Igneous action and its results, 265 ; 

 exterior agencies, 265 ; volcanoes, 

 267 ; non-volcanic eruptions, 297 ; 

 thermal waters, geysers, 805 



— ejections and intrusions, 89, 258, 

 364, ■ 382, 388, 658, 811 ; great 

 in the later part of geological 

 time, 392, 441 ; surficial, 299, 

 300* ; veins made by, 338-343 



— fusion, source of, 804 



— phenomena due to exterior 

 agencies, 265, 266 



— rocks, 67, 76§, 80. 272-274 

 and metamorphic, relations of, 



326-327 

 Iguana, 868 

 Iguanavus teres, 849 

 Iguanodon, 786, 828, 845, 856, 863, 



865 ; Bernissartensis, 863* ; Man- 



telli, 863* 

 Ilex, 854 ; cassine, 74, 75 

 Ilfracombe group, 625 

 Iltenus, 500, 502, 508, 520, 521, 546, 



551, 568 ; Arcturus, 508 ; Bay- 



fleldi, 508 ; Bowmani, 520 ; cras- 



sicauda, 515 ; Davisi, 519* ; 



globosus, 503 ; loxus, 549, 551 ; 



Taurus, 515 ; Thomsonl, 567 

 Illawarra, 261* 

 Illicium, 896 

 Illinois, mean height of, 23 ; up- 



hfts in, 732 ; lead mines, 342, 522 

 Hhnois River, 948 

 Ilmen Mts., 85 

 Ilmenite, 70§, 87 

 Ilyanassa obsoleta, 994 

 Ilyodes, 691 

 India, 32, 34, 160, 299, 846, 406; 



united with S. Africa, 871, 878, 893 



