INDEX. 



1067 



Jurassic, 749 ; Cretaceous, 364, 

 813*, 814, 817, 818, 820, 824, 834, 

 836, 874* ; Tertiary, 880, 885, 888, 

 894 



Miacis, 918 



Miamia Bronsoni, 679*, 691 



Miarolyte, 83 



Miascyte, 85§ 



Mica, "65§, 81 



— dioryte, 86§ 



— schist, S3§ 



— syenyte, 83§ ; trachyte, 84§ 

 Michelinia, 562, 597, 640 ; stylopora, 



601 

 Michigan, mean height of, 23 ; salt 



group, 638 

 — , Archaean in, 442, 445, 446, 449*, 



450, 454 ; Cambrian in, 464, 465*, 



468 

 Michigan Bay, 628, 633 

 Michigan, Lalie, 200, 201*, 202, 540, 



635 ; fiords of, 947, 948 ; glacier 



of, 968 

 Mlchipicoten Island, 445, 483 

 Micraster, 860 ; brevis, 866 ; cor- 



anguinum, 866; cor-bovis, 866; 



gh'phus, 866 ; tercensis, 866 

 Microbes. See Bacteria 

 Microblattina, 691 

 Microcharus erinaceus, 926 

 Microctenodon, 917 

 Microchne, 64§, 83, 85, 129, 321 



— granite, 83 



Micrococcus nitriflcans, 137 

 Microccelus, 867 



MicroconodoB tenuirostris, 754* 

 Microdiscus, 473, 481 ; speciosus, 



473* 



Microdon, 621 ; bellistriatus, 598*, 

 602 



Micro-granitic rocks, 77§ 



Microlestes, 774, 789 ; antiquus, 

 773* ; Moorei, 773 



Microlites, 77g, 266, 273, 288*, 449 



Microscopic texture, 76§ 



Microspongia, 515 



Microsyops, 918 



Midford sands, 775 



Midway epoch, 884, 885, 888, 896*, 

 915 



Migrations forced by glacial condi- 

 tions, 945 ; Arctic, between Amer- 

 ica and Europe or Asia, 946, 950 



Mill Creek beds (group), 840, 872 



Millepeds, 419, 723 



Millepores, 72, 130, 142, 431§ 



Millerite, 687 



Millstone grit, 80, 410 



Millstones, 82 



Milo Island, volcanoes, 296 



Minas Basin, N.S., 350, 741 



Mineral charcoal, 662 



— oil and gas, 62, 74, 80, 124, 138 ; 

 from the Trenton limestone, 522- 

 523 ; from Salina group, 554 ; from 

 the Devonian, 606 ; map of areas 

 in Pennsylvania, 730* 



— springs, 119, 128, 320; analyses, 

 121 



Minerals, 63; making of, 317, 318, 323 

 Mines, temperature in, 257, 258 

 Minette, 83§ 



Mingan Islands, 492, 493, 497, 500, 

 501, 503 



Minnesota, height of, 23 ; rain- 

 fall, 944; Archa?an in, 446. 448*; 

 Cambrian, 46S, 469, 478, 484 ; Cal- 

 ciferous. 491, 493; Trenton, 494; 

 Niagara, 540 ; Subcarboniferous, 

 634 ; Glacial, 945, 968 



Minnesota River, 947 



Minyros Island, 296 (volcanoes) 



Miocene lake basins, 882, 933 



— period, 8S0§, 881*, 883; lacus- 

 trine, 893-895 



Miohippus, 911, 912, 913*, 918, 919 ; 

 annectens, 894 



Miohippus beds, 8S6, 894 



Miolophus, 925 



Mispec conglomerate and slate, 594 



Mississaga Kiver, 445 



Mississippi, mean height of the 

 state, 23 ; Cambrian in, 466 ; 

 Subcarboniferous, 638, 648 ; Car- 

 bonic, 635; Cretaceous, 638, 819. 

 823, 845, 854, 888 ; Tertiary, 884 ; 

 Glacial, 945 



— River, 24, 29, 30, 31 ; pitch and 

 amount of discharge, 178, 190 ; 

 delta of, 197 ; headwaters in the 

 Glacial period, 947, 948, 964; 

 Southwest Pass of, 198 



Mississippian period, 632 

 Missouri, mean height of, 23 ; iron 



mountains, 444, 449 ; lead mines, 



134, 342, 522 



— River, 29 ; discharge and pitch, 

 173 ; headwaters in the Saskatch- 

 ewan during the Glacial period, 

 964 



— , region of Upper, 829, 841, 844, 



855, 893 

 Mitchell, Mt., 27 

 Mites, 420§ 



Mitoclema cinctosum, 503 

 Mitra, 916, 922; cellulifera, 916; 



conquisita, 916 ; scabra, 926 

 Mbcodectes, 917 

 Moa, 1014 

 Modiola, 52.5, 757, 916, 917; Bran- 



neri, 836 ; minima, 774 ; plicatula, 



994 ; Shawneensis, 690 ; Wyom- 



ingensis, 690 

 Modioloides priscus, 472* 

 Modiolopsis, 481, 516, 520; com- 



planata, 567 ; dubia, 558 ; faba, 



514 ; modiolaris, 511* ; orthonota, 



544*, 549; primigenia, 544*, 549; 



subalata, 551 ; superba, 514 

 Modiomorpha, 602, 621 

 Modulus compactus, 917 

 Mohawk Eiver, analysis of water 



of, 121 

 Moisture in rocks, 122, 205, 278, 



311-312, 315, 324, 325, 334, 354, 



802 

 Mokkatam, 160* 

 Molasse, 920, 921 ; Lignitic, 926 ; 



Lower, 926 ; Red, 926 

 Molds, 436§ 

 Mole, 158, 927 



Molgophis, 692 ; macrurus, 682, 692 

 Molluscoids, 140, 419, 423, 425, 526 

 MoUusks, 55, 59, 72, 423 



Molokai, 292 



Moluccas, 921 



Molybdate, 340 



Mona Series, 440 



Monads, 419 



Monazite, 85, 455 



Mongolia, 82, 33, 34 



Monkeys, 54, 55, 402, 924, 930 



Mono Lake, 26, 132*, 133*, 276, 296, 

 334 



Monoclines, 102§*, 109, 110* 



Monoclonius, 847 



Monodon, 690 



Monomyaries, 525 



Monongahela River series, 651 



Monopleura mai-cida, 836 ; pinguis- 

 cula, 836 



Monoprionldse, 498*§ 



Monopteria, 690 



Monotis, 756, 759; Alberti, 774; 

 curta, 758* ; decussata, 774 ; Halli, 

 685 ; salinaria, 757 ; septentrion- 

 alis, 792 ; speluncaria, 685 ; sub- 

 circularis, 757, 758 ; variabilis, 685 



Monotis bed, 757 



Monotremes, 53, 54, 415, 789, 852, 

 853*, 917 



Monroe County, Pa., Prosser's sec- 

 tion of, 594, IU6 



Monson, Mass., quarry, 373 



Mont Blanc. See Blanc 



Montalban, 446 



Montana, mean height of, 23 ; Cam- 

 brian in, 476, 477 ; Subcarbonifer- 

 ous, 639 ; Carboniferous, 658 ;. 

 Triassic, 746; Jurassic, 748; Cre- 

 taceous, Lower, 818, 820 ; Upper, 

 825, 826, 828 ; Tertiary, 894, 918 



Montauk Point, 224 



Monte Rosa. See Rosa 



Montebello sandstone, 594 



Monterey beds, 888 



Monticulipora, 505, 511, 516, 524, 

 545*, 561 ; adhaerens, 503 ; favu- 

 losa, 520 ; fibrosa, 508 ; frondosa, 

 520 ; lycoperdon, 524 ; patula, 503 



Montlivaltia, 760, 777, 77S (number 

 of British); Atlantica, 854; cary- 

 ophyllata, 777* 



Montmartre Gypsum beds (gypsi- 

 ferous marls), 923, 924, 926 



Montmorenci, fault at, 527* 



Montrose shales, 606 



Monument Park, 185, 186* 



Monzonyte, S5§ 



Moon, surface of, 11 ; density of, 

 16 



Moosehead Lake, 577 



Mor.avia, Cretaceous in, 838 ; Per- 

 mian, 698 



Morea cancellaria, 854 ; naticella, 854 



Moreau Eiver, 856 



Mormolucoides articulatus, 750* 



Morocco. 33, 920 



Morosaurus, 763, 786, 836 ; Beck- 

 lesii, 863 ; grandis, 763* 



Morris (Mt.), 605 



Mortar, 79§ 



Mortonia Rogersi, 898* 



Mortoniceras, 855 ; Delawarense, 

 854 ; Leonense, 837 ; Shoshonense, 

 855 ; Te.xanum, 855 



