774 



INDEX. 



Ammonites Woolgari, 487. 



Wosnessenski, 446. 

 Ammonitidse, first of, 303. 

 Amoeba, 165, 749. 

 Amphibians, 344.§ 



culmination of, 497. 

 Amphibian, earliest American, 



310* 

 Amphibole, 59.§ 

 Amphicyon, 519, 529. 

 Amphipods, 153.g* 

 Amphistegina, 526.* 

 Amphitherium Broderipii, 453, 



462* 

 Amphiuma, 344.$ 

 Ampyx nudus, 216.* 

 Amygdaloid, 72,g 690.§ 

 Amygdaloidal cavities, filling 



of, 715. 

 Anabacia Orbulites, 458. 

 Analcime, 62.g 

 Ananchytes cinctus, 474, 479. 



fimbriatus, 479. 

 Anatifa, 154* 

 Anchilopus, 529. 

 Anchitherium, 423, 519, 529. 

 Ancyloceras, 472,g 473. 



Matheronianus, 485.* 

 Andalusite, 58.§ 

 Andrias Scheuchzeri, 344. 

 Angiosperms, 166,§ 333. 



first appearance of, 470. 



of Tertiary, 513. 

 Anglo-Parisian basin, 502, 523. 

 Anhydrite, 64.$ 

 Animal kingdom, 147.§ 

 Animals and plants, distinc- 

 tions of, 747. 

 Animals, criteria of rank 

 among, 592. 



extinction of species of, in 

 modern times, 578. 



of Post-tertiary cotempo- 

 raneous with man, 576, 

 577, 578, 581. 



systemless, 597, 748. 

 Anisopus Deweyanus, 427,* 

 429* 



gracilis, 427.* 

 Annularia, 341, 356. 



carinata, 374.* 



sphenophylloides, 342. 

 Anogens, 166.$ 

 Anolax gigantea, 517. 

 Anomalocystis, 253.* 

 Anomia Ruffini, 521. 

 Anomcepus scambus, 425, 428.* 

 Anopl other e, 527. 

 Anoplotherium an Ungulate, 



423.§ 

 Anorthite, 56.§ 

 Ant-eater, 423.g 

 Antelope, 423, 529. 

 Anthophyllite, 60§. 

 Anthracite, G8,g 328, 360. 



of the Calciferous rocks of 

 New York, 754. 

 Anthracopalaamon dubius, 358. 



Grossarti, 358 



Salteri, 357.* 

 Anticlinal, 105.£ 

 Anticosti rocks, 224, 230, 231, 

 235. 



Anticosti, Clinton in, 235. 



Hudson in, 218. 



Oneida at, 230. 



Medina in, 231. 

 Anvil Rock, 329. 

 Apateon, 345.g 



pedestris, 358. 

 Apatite, 65.g 



Apennines, elevation of, 533. 

 Aphanite, 77, 79.£ 

 Aphlebia, 355. 

 Apiocrinus elegans, 464. 



Parkinsoni, 464. 



rotundus, 464. 



Royssianus, 458,* 465. 

 Apiocystis Gebhardi, 253,* 255. 

 Appalachian and Illinois coal 

 measures, equivalency 

 of, 329. 



coal field, 322. 



faults, 198, 407, 720. 



flexures, characters of,406. 



region, 197, 222, 243, 255, 

 268, 290. 300, 316, 364, 

 385, 393,' 403. 



revolution, 403. 

 Appalachians, ideal section of, 

 405. 



not existing in Devonian, 

 300. 

 Aporrhais Americana, 477.* 

 Apteryx, 580. 

 Aptian group, 480. 

 Apus dubius, 358. 

 Aragonite, 63.§ 

 Aralo-Caspian deposits, 523. 

 Araucaria Cunninghami, 166.* 

 Araucarian Pines, 166,§* 334. 

 Araucarites, 337. 

 Area, 303, 399. 



carbonaria, 348.* 



hians, 522.* 



lienosa, 522. 



Mississippiensis, 518.* 

 Archasocidaris, 160. 



Norwoodi, 313* 



Shumardana, 312* 



Wortheni, 312* 

 Archaeocyathus Atlanticus, 

 186* 



Minganensis, 186, 190, 193. 

 Archseoniscus Brodiei, 461.* 

 Archaic period, 583. 

 Archegosaurus, 345.£ 



Decbeni, 358. 

 Archimedes, 310. 



reversa, 313* 



Wortheni, 313 * 



limestone, 307. 

 Archonts, 422.§ 

 Arctic, Carboniferous in, 324. 



Chazy in, 206, 224. 



climate of, 224, 280, 362, 

 467, 567, 738. 



Corniferous in, 280. 



Cretaceous in, 467. 



ice of, 668, 677. 



Jurassic in, 445. 



Jurassic reptiles in, 738. 



Niagara in, 238, 242. 



Post-tertiary of, 549, 567. 



Trenton in, 207, 224. 

 Arctomys. 529. 



Arenicola Piscatorum, 155.* 

 Arges armatus, 297.* 

 Argillite, 75, 77.3 

 Argonauta, 156. $ 

 Arionellus cylindricus, 193. 



Oweni, 189. 

 Arisaig rocks, 235. 

 Arkansas, Azoic in, 137. 



Carboniferous in, 323. 



Cretaceous in, 469. 



lower rocks above the 

 Potsdam wanting, 245. 



Subcarboniferous in, 306. 



Tertiary in, 510. 



Millstone Grit in, 322. 

 Arkose. 83.§ 

 Armadillo, 423.§ 



group, Post-tertiary, 566. 

 Artesian wells, 648,* 682. 

 Arthrophycus Harlani, 232.* 

 Articulates, 149, 152.§ 

 Artiodactyls, 422.g 

 Arvicola, 529. 



Asaphus gigas, 210,* 215,* 216, 

 222. 



illsenoides, 193. 



megistos, 220, 222. 



obtusus, 210. 



Powisii, 216 * 

 Asbestus, 60.§ 

 Ascidians, 157. § 

 Ashburton group, 294. 

 Asia, Cretaceous in, 481 



Jurassic in, 447. 



system in reliefs of, 25.* 



trends of land of, 38. 



Triassic in, 443. 



volcanoes of central, 687. 

 Asphaltic coal, 68.g 

 Asphaltum, composition of, 



360. 

 Aspidorhynchus, 461.* 

 Aspidura loricata, 435. 

 Asplenites, 338.g 

 Astarte Conradi, 517.* 



elegans, 465. 



Laurentiana, 552. 



minima, 459,* 465. 



ovata, 465. 

 Asterias, 160. 



Anthonii, 221 * 

 Asterioids, 159,§ 160. 

 Asterophyllites, 341 ,§ 356. 



ovatus, 341.* 



parvula, 290. 



sublevis, 341.* 

 Astraea, 163, 618. 



Orion, 66. 

 Astrocoenia Sancti-Sabas, 474. 

 Astylospongia parvula, 211. 

 Atacama desert, 47. 

 Athyris, 182.* 



congesta, 237* 



lamellosa, 318* 



spiriferoides, 284* 



subtilita, 348,* 357, 362. 

 371. 

 Atlantic border of continent 

 under water, 385. 



border region, 413. 



currents, 41, C51, 657. 



currents in Potsdam Pe- 

 riod, 200. 



