INDEX. 



791 



Annelids, 123,§ 608. 

 Annularia, 331, 370, 348. 



carinata, 87u.* 



spbenophylloides, 331. 

 Anodonta Jukesii, 284. 

 Anogens, 133. § 

 Anolax gigantea, 509. 

 Anoma locardia Mississippiensis , 



499*509. 

 Anomalocystites, 243. 



cornutus, 238,* 240. 

 Anoroia, 483, 508. 



Ruffini, 510. 

 Anomcepus scambus,412,*417. 

 Anomourans, range of, in time, 



388.* 

 Anoplothere, 517. 

 Anoplotherium. 519, 520. 



commune, 519. 



secundarium, 519. 

 Anorthite, 54. § 

 Anorthosyte, 69. § 

 Ant-eater, 518,§ 568. 

 Antholithes, 326, 348. 



Pitcairneae, 325 * 329. 



priscus,325.*329. 

 Anthophylliric rocks. 64. § 

 Anthracerpe* typus, 342. 

 Anthracerpeton crassosteum, 



351. 

 Anthracite, 61, § 315, 320, 346, 

 363. 



analyses of, 316. 



composition of, 361. 



of the Calciferous, 186. 



region of Pennsylvania, 320. 

 Anthracoptera carbonaria, 342. 

 Anthracosaurus Russelli, 343, 



351. 

 Anthracotherium, 519. 

 Anthrapalaemon dubius, 350. 



gracilis, 334,* 342. 



Grossarti, 350. 



Salteri, 350.* 

 Anticlinal, 95§*, 750. 

 Anticlinorium, 752. § 

 Anticosti, Cincinnati in, 197. 



Clinton in, 235. 



Oneida in, 218. 



region. 217. 



rocks, 197, 206, 223, 230. 

 Antigorite, 73. § 

 Antilope, 519, 520. 

 Antliodus, 304. 

 Apateon 338. § 



pedestris, 351. 

 Apatichnus bellus, 412.* 

 Apatite, 58, § 152, 726, 728. 

 Apatornis, 468. 

 Apennines, elevation of, 525. 



Tertiary in, 512. 

 Aphanyte, 70. § 

 Apiocrinus, 437. 



elegans. 449. 



Parkinsoni, 449. 



Pvoissyanus, 437 * 449. 

 Apiocystis Gebhardi, 238* 240. 

 Apopolenus Henrici, 180. 



Salteri, 18). 

 Appalachian coal-field, 309, 320. 



faults, 398 * 



flexures, characters of, 398. 



region, 146,§ 167, 184, 196, 

 211, 251, 267, 276, 280, 295, 

 320, 373, 391, 393, 401. 



revolution, 403. 

 Appalachians, heights of, 17. 



in the Carboniferous, 355. 



in the Cretaceous, 479, 480. 



Appalachians, making of, 748, 

 750. 

 not existing in Devonian, 287. 

 Aporrhais occidentalis, 551. 



Sowerbii, 518. 

 Apteryx, 580. 

 Aptian group, 470. 

 Apus dubius, 350. 

 Aquatic life, distribution of, 

 610. 

 most easily fossilized, 613. 

 of low grade, 382. 

 Aquila Dananus, 511. 

 Arago, on internal heat, 699. 

 Aralo-Caspian deposits, 513. 

 depression, 13, 26- 

 life, 610. 

 Aranea, 351. 

 Araucaria, 450. 



Cunninghami, 134.* 

 Araucariau Pines, 134,§* 323. 

 Araucarites, 337. 



Ouangondianum, 271. 

 Araucaroxylon, 271, 349. 

 Area, 253, 284, 385, 508. 

 carinata, 476. 

 hians, 500*511. 

 lienosa, oil. 

 Arcania, 475. 



Archaean map of North America, 

 149. 

 mountains, 750. 

 nucleus of North America, 



160. 

 origin of later rocks, 161. 

 periods of, 151. 

 rocks, distribution of, 148. 

 time, 139, 146. 

 Archseocaris, 267- 

 Archaeocidaris, 372. 3f3, 341. 

 Norwoodi,298,*303. 

 range of, in time, 386.* 

 Shumardana 298.* 303. 

 Wortheni, 298,* 303. 

 Archaeocyathellus Rensselaeri- 



cus, 177. 

 Archaeocy athus, 189 . § 

 Atlanticus. Ii7.* 

 Minganensis, 188. 

 Archaeomys, 519. 

 Archaeoniscus Brodiei , 441 ,* 449. 

 Archaeopteryx macrura, 446, 



447,* 449. 

 Archegosaurus, 338. § 

 Decheni, 351. 

 minor, 351. 

 Archimedes, 296, 299. 

 Wortheni, 299,* 303. 

 limestone, 294, 379. 

 Archimylacris Acadicus, 343. 

 Architarbus rotundatus, 342. 



subovalis, 351 

 Architectonica, 508 

 Archiulus xylobioides, 342. 

 I Arctic-border region, 146. 

 Arctic, Carboniferous in, 291, 

 352. 

 Chazy in, 185. 



climate of, 209, 253, 289, 352, 

 452, 480, 526, 541, 572, 594, 

 755. 

 Corniferous in, 265. 

 Cretaceous in, 480. 

 ice of, 675, 686. 

 Jurassic in, 431, 432, 452. 

 Niagara in, 221. 

 Quaternary of, 550, 551. 

 Silurian species of, occurring 

 elsewhere, 249. 



Arctic, terraces in, 550. 



Trenton in , 196. 



Triassic in, 430. 



zone, 609. 

 Arctocyon primaevus, 517, 519. 

 Arctomys, 520. 

 Arenaceous rocks, 63. § 

 Arenaria Groenlandica, 532. 



glabra, 532. 

 Arenicola marina, 120.* 123- § 

 Arenicolites didyma, 179. 



linearis, 192. 



spiralis, 176. 

 Arenig group, 163, 192. 

 Arges armatus, 285.* 

 Argillaceous rocks, 64. § 



iron-ore, 220, 231. 

 Argile plastique, 512, 519. 

 Argillyte, 69,§ 72. § 

 Argiope, 171, 174. 

 Aristolochia, 498. 

 Arkansas, Archaean in, 15°. 



Carboniferous in, 145, 291, 

 321. 



Cretaceous in, 455, 456. 



lead mines in, 186. 



Subcarboniferous in, 293. 



Tertiary in, 491. 

 Armadillo, 569, 570. 

 Artemia, 610. 



Artesian wells, 653, 654,* 699. 

 Arthrolycosa antiquus, 334,* 



342. 

 Arthrophycus Harlani, 223,* 



228. 

 Arthrostigma, 271. § 



gracile, 271. 

 Articulates, 118,§* 121. § 



range of, in time, 140.* 

 Artiodactyls, 504. § 



range of, in time, 589.* 

 Arundo, 499. 



Goepperti, 499. 

 Arvicola, 520. 



Asaphus, 174,§ 188. 189, 190, 

 192, 228, 240, 253. 



Canadensis, 206. 



canalis, 189, 190, 192. 



gigas, 202 * 204. 



megistos, 206, 228. 



obtusus, 192. 



platycephalus, 190, 196, 202,* 

 2(J4, 206. 



Powisii, 208* 



range of, in time, 387.* 



tyrannus, 208. 

 Asbestus, 55 § 

 Ascidians, 123,§ 126,§ 602. 



a comprehensive type, 597. 

 Ascoceras, 228. 



Canadense, 250. 



Newberryi, 250. 

 Ash of plants, 61, 365, 366. 



volcanic, 66. § 

 Ashburton group, 282. 

 Asia, Cretaceous in, 470. 



eastern, island-chains of, 35, 

 747. 



Jurassic in, 433. 



mean height of, 14. 



system in reliefs of, 25, 26.* 



Tertiary in, 512. 



trends of land of, 37. 



volcanoes of central, 704. 

 Asilus. 449. 



Aspidella Terra-novica, 176. 

 Aspidium filix, 365. 

 Aspidocrinus, 240. 



