INDEX 



949 



Atmospheric hypotheses of glacial 



climate, 898 



Atrypina imbricata, 576 

 Atwood, W. W., 909 

 Aucella crassicollis, 741 



mosquensis, 713 



piochii, 741 

 Augite, 26, 76 

 Augitite, 82 

 Augusta series, 597 

 Australia, Cambrian of, 491 



Carboniferous of, 643 



Cretaceous of, 758 



Devonian of, 574 



Jurassic of, 709 



Lower Carboniferous of, 606 



Miocene of, 817 



Ordovician of, 520 



Permian glacial formations of, 66 3 



Silurian of, 520 



Tertiary of, 783, 817 



Triassic of, 690 

 Autoclastic rock, 56 

 Aviculopecten occidentalis, 658, 675 

 Azoic aeon, 426 



Babb, C. C., 139 

 Babbitt, F. E., 930 

 Bacteria, Devonian, 594 

 Baculites, 771 

 grandis, 770 



Bad-land topography, 134 

 "Bad Lands," 778 

 Bagg, R. M., 795 

 Bain, H. F., 517, 600, 624, 876 

 Baldwin, S. P., 884 

 Ball, Sir Robt., 895 

 Barbour, E. H., 661 

 Barite, 76 

 Barker, G. F., 289 

 Barnacles, 586 

 Barrande, J., 520 

 Barrier, 310 

 Bars, 313 



Barycrinus hoveyi, 609 

 Basal conglomerate, 451 

 Basalt, 30, 60, 82 

 Base-level, 121, 125, 128 

 Basement Complex, 443 

 Basic rocks, 24 

 Basin ranges, 355 

 Bastin, E. S., 750, 885, 917 

 Batholiths, 16, 367 

 Batocrinus, 609 

 Bays sandstone, 510 



Beach, 309 



Beaumont, Eli de, 287 

 Beauxite, 76 

 Beaverdam Creek, 124 

 Becker, G. F., 408, 411, 930 

 Becraft limestone, 569 

 Bedding, 395 



Bedford limestone, 598, 615 

 Beekmantown limestone, 509 

 Belemnites densus, 715 

 Belemnites, Jurassic, 711 

 Bellerophon clausus, 526 



percarinatus, 658 



subhevis, 614 

 Belly River deposits, 762 

 Bennettitales, 595, 650, 691, 719 

 Benton formation, 629, 746 

 Bessemer ore, 71 

 Betulites westi, 760 

 Bibbins, A., 728 

 Bifidaria armifera, 889 



corticaria, 889 



muscorum, 889 



pentodon, 889 

 Billingsella coloradoensis, 497 



transversa, 497 

 Bilobites various, 576 

 Biotite, 27, 76 

 Birds, Cretaceous, 765, 766 



Eocene, 794 



Jurassic, 725 



Miocene, 824 

 Bison, 820 

 Bittern, 324 

 Bitumen, 76 

 Bituminous coal, 82, 635, 637 



varieties of, 638 

 Black Jura, 709 

 Black River limestone. 509 

 Black shale, 567 

 Blake, W. P., 730 

 Blastoids, Onondagan, 580 



Osage, 609 



Silurian, 548 

 " Blowing-caves," 278 

 "Blowing- wells," 278 

 Blue muds, 327 

 Bluff formation, 887 

 Bolivian Andes, Jurassic in, 709 

 "Bone-beds," 579 

 Bonney, T. G., 393 

 Boreal animals of Pleistocene, 919 

 Borneo, Jurassic of, 709 

 Botriopygus alabamensis, 768 

 Boutwell, J. M., 662 



