948 



1XDKX 



Angiosperms, introduction of, 73S 

 Angiosperms and mammals, 786 

 Anhydrite, 75 

 Annelids, see Vermes, 

 Annularia sphenophylloides, 617 

 Anomalina ammonoides, 795 

 Anomalocrinus incurvus, 530 

 Anorthite, 75 

 Anorthosite, 81 

 Antecedent streams, 175, 177 

 Anthracite, 75, 635, 637 

 Anthracite coal field, 624 

 Anthrapalaemon gracilis, 655 

 Anticline, 401 

 Anticlinoria, 355, 403 

 Antiquity of man, 923 

 Apatite, 75 

 Apatosaurus, 720, 721 

 Apennines, development of, 817 

 Apes, 823 



Aphanite, 19, 59, 60, 82 

 Aphorrhais prolabiata, 768 

 Appalachian coal field, 625 

 Appalachian Mountains, 359, 633 



base-leveling of, 172 



Cambrian of, 487 



Devonian of, 567 



history of, 172, 359, 668, 730, 832 



Mississippian of, 597 



Ordovician of, 510 



Silurian of, 538, 543 

 Aqueous metamorphism, 43 

 Arabellites cornutus, 533 



ovalis, 533 



Aragonite, 75 

 Arbuckle Mountains, 539 

 Area staminea, 825 



tehamaensis, 741 

 Archseocrinus desideratus, 530 

 Archseocyathus minganensis, 533 



rensselaericus, 500 

 Archaeopteris bochsiana, 645 

 Archaeopteryx macrura, 725 

 Archean, 440 



bearing on origin of earth, 446 



rocks, 355 



structure of, 445 

 Archeozoic era, 427, 435, 439 

 Archimedes, 615, 657 

 Archimedes limestone, 615 

 Archimedes .swallovanus, 61 \ 

 Archinacella cingulata, 520 

 Arctic lands, Devonian of, 56!) 



Eocene of, 7S 1 



Jurassic of, 709 



Arctic lands continual 



Miocene of, Sis 



Ordovician of, 521 



Triassic of, 6! Mi 

 Arenaceous rocks, S2 

 Arenicolites woodi, 499 

 Argentina, Jurassic of, 709 

 Argillite, 53, 82, 86 

 Aridity of Trias, 686 

 Aristozoae rotundata, I '.Mi 

 Arkose, 36, 82 

 Armadillos, Pleistocene, 922 

 Arnold, R., 774, 797, 798, 804, 807, 



808, 827, 835, 836, St.", 

 Artefac, 923 

 Artesian wells, 219 

 Arthracantha punctobrachiata, 585 

 Arthrodirans, 579, 583, 592 

 Arthrolycosa antiqua, 655 

 Arthropods, Devonian, 592 

 Artiodactyls, 789, 790, 803 

 Ashley, G, H., 624, 811, SI 4, Sir,. 



839, 911, 913 

 Asia, Cambrian of, 401 



Carboniferous of, 12 



Cretaceous of, 757 



Devonian of, 574 



Glaciation of, 849 



Jurassic of, 709 



Lower Cretaceous of, 736 



Miocene of, 817 



Ordivician of, 520 



Permian of, 667 



Tertiary of, 781, si 7 



Triassic of, 690 

 Asphaltum, 75 

 Astarte calif ornica, 741 



thomasii, S25 

 Astral aeon, 1:26 

 Astresius liratus, 741 

 Astronomic geology, 1 

 Astronomic hypotheses of glacial 



climate, 895 

 Athyris lamellosa, 610 

 Atlantic and Pacific, connection in 

 Eocene, 7s ; 



connection in Comanchean, 7:!_ ) 

 Atiantosaunis beds, ~:\2 

 Atmosphere, 4, 88 



character of early, 129 



chemical work of, 102 



geological work of, 88 



origin of, \'-'>'l 



primitive. Us 



thermal ell'rrK of, 6 



