INDEX. 



1061 



India, Archsan in, 456 ; Cambrian, 

 483 ; Upper Silurian, 564 ; Car- 

 boniferous, 632, 693 ; Permian, 

 686, 698, 699, T3T, 770 ; Triassic, 

 632, 69S, 737, 769, 770, 778, 791 ; 

 Jurassic, 698, 776, 791, 873 ; Cre- 

 taceous, 299, 833, 857, 866, 867, 

 873, 874, 876; Tertiary, 299, 920, 

 923, 925, 927, 936, 938 



Indian Ocean, 17, 19, 23, 81, 33, 48, 

 44, 50, 296, 297, 632, 937, 939 ; top- 

 ographic changes in, 737 



Indian Territorj-, Cretaceous in, 817, 

 836 



Indiana, 28 (height), 207, 357 ; min- 

 eral gas and oil in, 206, 522, 528, 

 607 ; yield, 523 



Indianaite, 68S§ 



IndividuaUties in nature, 9 



ludrodon, 917 



Indus Basin, alluvial cones of, 195* 



— delta, earthquakes of 1819 and 

 1845, 349 



— , valley of Upper, 368 



Infra-Cretace, 865 



Intra-Lias, 77-i 



Infusorial earth, 81 §, 895; Tertiary, 

 894*, 895 



Ink-bag of Belemnite, 782* 



Inocaulis arbuscula, 516 



Inoceramus, 759, 760, 834, 837, 840, 

 860, 867, 877 (end) ; biformis, 855 ; 

 concentricus, 865 ; confertim-an- 

 nulatus, 854 ; Crispii, 855, 867 ; 

 Crispii var. Barabini, 854; de- 

 formis, 855 ; digitatus, 866 ; di- 

 midius, 841* ; exogyroides, 855 ; 

 fragilis, 855; labiatus, 840, 841*, 

 854, 855, 866 ; latus, 854, 867 ; 

 mytiloides, 867 ; problematlcus, 

 (= I. labiatus), 841* ; proximus, 

 S54; striatus, 866; sublaevis, 855; 

 subquadratus, 855 ; substriatus, 

 790 ; sulcatus, 865 ; tenuicostatus, 

 855 ; tenuilineatus, 855 ; umbona- 

 tus, 855 



Inoperculates, 54 



Inorganic distinguished from or- 

 ganic, 9, 418 



Insectivores, 54, 768, 902, 908, 906, 

 907, 911, 918. 925, 927, 928, 929, 980 



Insects, 54, 72, 141, 154. 158, 168, 

 189, 418, 419§, 520; derivation, 

 728-724 ; relations to other articu- 

 lates. 724 ; tracks, 95, 742 ; Lower 

 Silurian, 496. 521, 525; Upper Si- 

 lurian, 574, 721 (first) ; Devonian, 

 575, 600*, 601 ; Subcarboniferous 

 (none), 648 ; Carboniferous, 657, 

 674, 677, 679*, 691, 692, 701*, 704; 

 Permian, 686 ; Paleozoic, 525. 721, 

 727 ; post-Paleozoic, 786 ; Triassic, 

 742, 750*, 751, 756, 757, 771, 794; 

 Jurassic, 775, 776, 783*, 791, 794 ; 

 Tertiary, 202, 887, 898, 900*, 901, 

 921, 922, 928 ; Glacial, 946 



Integripallial, 425§ 



Interior Continental region, 34, 199 



— of N. Amer., 348, 887, 580, 581, 

 590, 592, 593-594, 606, 714, 715, 

 716, 856, 944 ; of Europe, 533, 573, 

 627, 693, 769, 775, 867 



Interior plains, 24§ 



Intestinal worms, 428 



Invertebrates, 404, 414, 418 ; rela- 

 tion of, to Vertebrates, 418 ; 

 reign of, 460 



locrinus, 516 ; crassus, 514 



Iodine, 331, 335 



lohtic granite, 83 



lone formation, 892 



Iowa, height of, 28 ; uplifts in, 782 ; 

 lead mines, 842, 522 



Iowa-Texas Coal-measure region, 

 648 



Iphidea bella, 471* 



Ireland, 203 ; disturbances, 534 ; 

 eruptions, 258, 518 ; peat-beds, 

 154 



— , Archaean in, 456 ; Cambrian, 480, 

 481, 482, 534 ; Lower Silurian, 518, 

 534; Upper Silurian, 563, 574; 

 Devonian, 622, 626 ; Subcarbonif- 

 erous, 694, 695 ; Carboniferous, 

 698, 704; Permian, 697; Creta- 

 ceous, 856 ; Tertiary, 938 



Irish Deer, 927 



Iron, density of, 15 ; oxidation of, 

 123 ; carbonate, 81, 125 ; oxides, 

 62, 124 ; sulphate, 70 ; sulphides, 

 70, 80, 128 



— age, 445 



— ore (and ore beds), 69, 70, 92, 127, 

 815, 326, 327, 344, 891 ; Archaean, 

 876, 445, 446, 449*, 450, 451, 453, 

 454, 455, 456, 458 ; Cambrian, 446 ; 

 Lower Sihirian, 524; Clinton, 589, 

 542, 543, 572, 728 ; Carboniferous, 

 650, 651, 652, 656, 668, 664-665, 

 708 ; Jurassic, 792 



— sandstone, 542 

 Iron Mts., 444, 449 

 Ironstone, 844, 688 



Irrawaddy, ratio of sediment to 

 water, 190 



Isastra?a, 777, 778 (number of Brit- 

 ish) ; discoidea, 854 ; explanata, 

 790 ; Murchisoni, 790 ; oblonga, 

 777* 



Ischadites, 562 ; bursiformis, 590 



Ischyromys, 918 



Isehyrosaurus, 856 ; antlquus, 829, 

 856 



Isectolophus, 918 



Isis nobilis, 72§ 



Island Eange of British Columbia, 

 789, 747, 809 



Islands, chains of, 20, 374; curves 

 in, 35*, 36*, 37*, 39* 



— as parts of continents, 22 ; of 

 British Columbia, 890 



Isle of Wight. See Wight 



Isle Eoyale, 483 



Isocardia Conradi, 854 ; fraterna, 



917 ; medialis, a36 ; Washita, 837 

 Isocrymal chart, 4G§, 47* 

 Isopods, 420*, 421§, 422, 488, 4;39§, 



487, 512, 623, 624, 720, 723, 783 

 Isoseismic curves, 375 

 Isostasy, 877§, 878, 379, 882, 875 

 Isotelus canalis, 503 ; platycepha- 



lus, 508* 

 Isothermal chart, 46§, 47* 

 Itabyryte, 83§ 



Itacolumyte, 82 



Italy, 296 (volcanoes) ; Subcarbon- 

 iferous in, 693 ; Carboniferous, 

 693 ; Triassic, 768 ; Jurassic, 793 ; 

 OiJlyte, 309 ; Cretaceous, 857. 

 859 ; Tertiary, 921, 926, 927, 938 

 (eruptions) 



Ithaca group, 603, 604, 605, 614, 620, 

 629 



Ithygrammodon, 918 



lulids, 419 



lulus, 676 



Ixtaccituatl, Mt., height of, 937 



Jackson coal, 657 



— epoch, 884, 889, 907, 916 



Jakobshavn Glacier, 244 



Jamaica, 29, 163, 847. 891, 935, 

 936 



James Kiver, 816 



Jan Mayen, 19, 297 



Janassa bituminosa, 707 



Janira occidentalis, 886 ; Wrightli, 

 887 



Japan, 19, 22, 82, 40, 183, 277, 280, 

 290, 293, 296, 297 ; earthquakes of, 

 373, 374 ; Carboniferous, 696, 700 ; 

 Tertiary, 920 



Jafian Sea, 927 



Jasper, 82§, 84, 309, 450, 458, 454 



Java, 38, 40, 277, 297 (volcanoes), 

 920 



Jeanpaullia Miinsteriana, 756 ; ra- 

 diata, 756 



Jeff Davis Peak, 945 



Jefferson Mt., 240 (glacier), 296 



Jelly-flsh, 430§ 



Jet, 775§ 



Joaquin Elver, 30 



Jock coal-bed, 656 



Joggins Coal-measures, 654* (sec- 

 tion), 658, 682, 690 



John Day beds, 884, 886, 894, 911, 

 918, 926 



Jolm Day Elver, 886, 894 



Johnstown cement-bed, 652 



Joints, 111§, 112*, 871-372, 593 



Jokuls Fiord, reconstructed glacier, 

 242 



Joliet building-stone, 541 



Jolleytown coal-bed, 651 



Joplin lead mines, 522 



Jordan valley, 23 



Jorullo (Mt.), 27 



Judith Eiver beds, 828, 829, 847, 

 850, 856 



Juglans, 921 ; denticulata, 839 ; 

 rhamnoides, 839 ; rugosa, 839 



Jukes Butte, 301* 



Juncus, 75 



Jungfrau, 236, 237 



Jupiter, density of, 16 ; oblique lines 

 on, 395 



Jupiter Serapis, 349 



Jura limestone, 738 



Jura Mts., 207, 382; Triassic in, 

 768 ; Jurassic, 788, 774, 793 ; Cre- 

 taceous, 859 ; Tertiary mountain- 

 making, 367, 868* (section), 919, 

 982 



Jura-Trias, 738, 749, 770, 881 ; of 

 Elk Mts., 364* 



