1050 



INDEX. 



Conularia, 4S1, 4S8, 506, 514, 540, 562, 

 567, 574, 578, 579, 618, 698, 705, 

 707, 719 (time range) ; elegantula, 

 590 ; forraosa, 516 ; Homfrayi, 

 520 ; lata, 578 ; longa, 551 ; Niaga- 

 rensis, 551 ; Trentoneasis, 507*, 

 514, 516 



Conulites flexuosus, 562 



Conulus chersina, 966 



Conus, 916, 922-; deperditus, 926; 

 Okhotensis, 927 



Cook's Inlet, 760 



Cooling-, contraction from, in case 

 of fusion, 261*, 263, 264, 383 



— of the globe, 376 ; its conse- 

 quences, 383, 939 



Cooper beds, 888 



Coosa coal-fields, 657 ; series, 468 



Copepods, 421§ 



Copiapo earthquake, 349 



Copodus, 643 



Copper, 70, 383; chloride. 294; 

 native, in drift, 953 ; oxide, 344 ; 

 pyrites (see Chalcopyrite); see 

 also Superior (Lake) region, cop- 

 per 



Copi)eras, 123, 125 



Coprolites, 73§ (analyses) ; Upper 

 Silurian, 567 ; Triassic, 754 ; J u- 

 rassic, 785, 786* 



Coral, precious, 72, 431 ; Coral 

 atolls (see Atolls) 



— bed, Taylorville, Cal., 759 



— beds of the Siliceous group of 

 Tennessee, 638 



— formations, 144-152 



— island, water supply of, 206 

 subsidence, 936-937 



— islands, 20, 120, 181, 144§, 145- 

 148, 145*, 146*, 161, 221, 225, 295, 

 350, 392, 937 ; most numerous in 

 the tropical Pacific, 145 ; number 

 in the several groups, 145; sec- 

 tions of, 149*, 284*, 285* 



— oiilyte, 147 



— polyps. See Polyps 



— rag, 411, 775, 790 



— reef period, in the Devonian, 

 584 



--reefs, 144§, 148-152 



Corallian group, 760, 775, 777, 780, 



790 

 Coralline limestone of the Niagara, 



540, 543, 549 

 Corallines, 56, 72, 437§ 

 Coralliochama Orcutti, 841* 

 CoraUiophila magna, 916 

 Corallium nobile, 72 

 Corals, 55, 140, 427*, 429*; limits 



of growth, 144, 145, 146, 149* 

 Corax, 848; heterodon, 843* 

 Oorbicula, 828, 829; annosa, 837; 



cytheriformis, 856 ; densata, 917 ; 



emacerata, 887 ; occidentalis, 856 

 Corbis distans, 916 

 Corbula, 756, 780, 828, 916, 917 ; 



Aldrichi, 915; Forbesiana, 791; 



idonea, 917; inflexa, 791; longi- 



rostris, 925 ; Neocoraiensis, 867 ; 



oniscus var. fossata, 916 ; peeti- 



nata, 791 ; pisum, 926 

 Cordaianthus, 673* 



Cordaicarpus Gutbieri, 673*, 689 



Cordaites, 485, 611, 612, 639, 667, 

 672, 673*, 674, 689, 699, 704 ; bo- 

 rassifolius, 646, 689; Clarki, 610, 

 621 ; costatus, 672*, 689 ; diversi- 

 folius, 689; Gutbieri, 673* ; Mans- 

 fieldi, 672; Kobbii, 595*, 596, 601, 

 622 



Cordaites shales, 593, 594 



Cordillera, 25§, 889, 390§ 



— of the Rocky Mts., 390 

 Cordillera glacial area, 956 

 Cordylocrinus, 562 

 Corea, 40 



Cork, composition of, 713 

 Cormorant, 852, 902 

 Cornbrash, 775, 790 

 Corneo-siliceous sponges, 431§ 

 Corneous sponges, 481§ 

 Corniferous limestone, 576, 579 

 Corniferous period, 579 

 Corniornis, 852 

 Cornulites serpularius, 567 

 Cornus suborbifera, 839 

 Cornwall, 317, 986 (united with 

 Brittany) 



— veins, 829*, 332*, 838* 

 Cornwallis Isl., 495 

 Coroniceras Bucklandi, 781*, 790 

 Coronocrinus, 562 

 Coronura, 591 



Corrasion, 168§, 941 



Correlation of geological records, 

 398-404 (difliculties, 398; means, 

 899 ; precautions in the use of 

 fossils, 402) ; difficult in crystal- 

 line terranes, 458 



— of Archaean subdivisions, 45T 

 Corrosion, 126, 136, 338-342 

 Corsica, 87 



Corsyte, 87§ 

 Cortez Range, 366 

 Corundum, 64§, 79, 320, 455 

 Corycephalus, 591 

 Corydalis Brongniarti, 704 

 Coryphodon, 903, 907, 917, 918, 923, 



925, 929 ; hamatus, 908, 904* 

 Coryphodon beds, 886 

 Coryphodonts, 928 

 Coscinodiscus, 163, 164* ; apieula- 



tus, 894* ; atmosphericus, 163, 



164* ; gigas, 894* 

 Coseguina volcano, 163 

 Cosmoceras Jason, 781* ; Parkln- 



soni, 790 

 Cosoryx, 911, 919 

 Costa Rica, 891 (Miocene) 

 Coteau des Prairies, 942 (drift), 



945 

 Cotopaxi (Mt.), 26, 274, 296 

 Cottonwood Canon, 469, 476, 581 



— Creek, 895 

 Country Peak, 733 



— rock, 331§ 

 Coutchiching, 445 



Crabs, 146, 420*, 488, 707, 717, 720, 



782 

 Crag, Phocene of England, 921, 



927 

 Craie glauconieuse, 866 

 Cranberry mine, 450 

 Cranes, 923 



Crania, 59, 425§, 516, 520, 719; an- 

 tiqua, 427* ; divaricata, 519*, 520 ; 

 scabiosa, 514, 516 

 Crassatella, 916; aliieformis, 915; 

 alta, 897*, 916; antestriata, 915; 

 curta, 854; flexura, 916; lineata, 

 855; littoralis, 854; melina, 917; 

 Marylandica, 917 ; Mississippien- 

 sis, 916; sulcata, 926; texalta, 

 916; Te.xana, 916; Trapaquara, 

 916; tumidula, 915; undulata, 

 917 ; vadosa, 854 



Craters, 267§, 269*, 270*, 284*, 286* ; 

 see also Volcanoes 



Craw-fish, 158, 771 



Crazy Mts., 876 



Crenitic hypothesis of Hunt, 821 



Creodonts, 903, 906, 907, 917, 918, 

 928, 924, 925 



Crepieephalus, 503 



Crepidula, 642 ; costata, 900* ; forni- 

 cata, 994 



Cretaceous period, 812 ; N. Ameri- 

 can, 812 ; foreign, 856 



— in N. America, map of, 812, 818*, 

 814 



— , Lower, 816 



— , Upper, 837 



Cretacic period. See Cretaceous 



Cricoceras Duvalii, 862* 



Cricodus, 417* 



Cricotus Gibsoni, 687 ; heterochtus, 

 687* 



Crillon (Mt.), 238 



Crinidea (Crinideans), 429 



Crinoidal limestones, 404, 594, 636, 

 652 



Crinoids, 60, 72, 138, 140, 142, 810, 

 814, 402, 428*, 429*§, 430§, 486, 

 532*, 541 



Criocardium dumosum, 854 



Cristellaria cultrata, 791 



Crocodiles, 54, 415; Jurassic, 768; 

 Tertiary, 901, 902, 923, 927 



Crocodilians, Cretaceous, 848, 868, 

 870, 871 ; Jurassic, 760, 787 ; Tri- 

 assic, 751, 754*, 758, 772, 778 



Crocodihis Elliotti, 901 ; Hastingsise, 

 926; Squankensis, 901 



Cromer forest bed, 927 



Crooked River, 749 



Cross-bedded structure, 92§, 93*, 

 194, 603, 658, 742, 825, 827, 888 



Cross Sound, 238 



Cross-Timber (Lower) sands, 815, 

 824, 854 



Crossopterygians, 417§, 619, 725 



Crotalocrinus rugosus, 564*, 565, 

 567 



Croton River water analyzed, 121 



Crushing, 259, 322, 326, 338, 452 



Crustaceans, 420*, 421§, 422, 423§, 

 487, 438 ; derivation, 720-721 ; 

 tracks, 95, 742 



Crustal movements, 345, 800 



Cruziana, 474 ; bilobata, 545*, 546 ; 

 similis, 477*, 478 



Cryoconite, 241§ 



Cryolite, 449 



Cryphieus, 591 ; Boothi, 614 



Cryptacanthia compacta, 690 



Cryptoceras capax, 691 



