INDEX. 



777 



Atlantic currents, 41, 651, 657. 

 currents in Potsdam Pe- 

 riod, 200. 

 ocean, 11. 



trends of islands of, 38. 

 Atmosphere, agency of, 628. 

 currents of, 44. 

 of the Carboniferous, 362. 

 Atrypa, 182,* 303. 

 aspera, 284,* 362. 

 aprinis, 261. 

 concentriea, 284.* 

 fallax, 362. 

 hemispherica, 237. 

 Hystrix, 290* 

 impressa, 274. 

 lamellata, 243. 

 nodostriata, 240.* 

 reticularis, 237,* 242, 255, 

 261, 262, 270, 274, 284* 

 Augite, 60.g 



rock, 78.g 

 Auk, extinction of, 580. 

 Aulopora cornuta, 273.* 

 Aulosteges, 184. 

 Auriferous quartz, age of, 413. 

 Aurochs, 580. 

 Auroral series, 379. 

 Austin limestone, 470. 

 Australia, Jurassic in, 447. 

 Permian in, 444. 

 Post-tertiary life of, 566. 

 system of reliefs of, 29. 

 the continent of Marsu- 

 pials, 566, 585. 

 Triassic in, 443. 

 Australian character of early 

 Tertiary vegetation in 

 Europe, 525. 

 Australasian chain of islands, 



34* 

 Austria, Tertiary of, 523. 

 Authorities of figures, 769. 

 Avellana Cassis, 484.* 

 Avicula, 399. 



demissa, 221.* 

 emacerata, 241,* 242. 

 Flabella, 284.* 

 Kazanensis, 375. 

 rhomboidea, 237.* 

 rugosa, 255. 

 socialis, 435,* 438. 

 Trentonensis, 213.* 

 Aviculopecten aviculatus, 

 349. 

 duplicatus, 290 * 

 rectilateraria, 348. 

 ixinsea Siouxensis, 478 



Tumulus, 521. 

 Axinus, 375, 376. 

 dubius, 375. 

 obscurus, 375. 

 last of, 376. 

 Axolotl, 344.g 

 Aymestry limestone, 260. 

 \zoic, 17'2.g 

 Age, 134. 

 Age, life of, 145. 

 beds, original condition 



of, 143. 

 beds displaced, 144. 

 forces continued through 

 the Palaeozoic, 393. 



Azoic, geographical distribu- 

 tion of, 135. 

 nucleus of N.America, out- 

 line of, repeated in out- 

 line of the continent,736. 

 N. American, relations of, 



to the continent, 147. 

 rocks of, 139. 

 rocks, altered, 711. 

 rocks, strike of, 144. 

 Azores, 38.* 



Babbage, on distribution of 



detritus, 659. 

 Bache, A. D., formation of 

 Sandy Hook, 664. 



on the oceanic waves of 

 the Simoda earthquake, 

 730. 

 Bacillaria paradoxa, 166.* 

 Baculites, 473.§ 



anceps, 485, 487. 



cornpressus, 477,* 479. 



ovatus, 473, 477,* 479. 

 Badger, 422.g 

 Bagshot beds, 522. 

 Bailey, on Atlantic-bottom 

 Rhizopods, 664. 



on Kamtchatka sound- 

 ings, 488. 



on origin of Green-Sand, 

 749. 



on Polycystines, 612. 



on structure of coal, 328. 

 Bajocian group, 449. 

 Bakewellia antiqua, 371, 375. 



parva, 370.* 

 Bala formation, 207. 

 Balsena, 529. 



palseatlantica, 521. 



prisca, 521. 

 Balasnodon, 529. 

 Ballston Spa, 219. 

 Bandicot, 424.g 

 Banks Land, Carboniferous 



in, 324. 

 Baphetes planiceps, 350. 

 Barbatia Mississippiensis,518.* 

 Barnacles, 154.g 

 Barrande, on Bohemian fos- 

 sils, 262. 

 Barriers, sand, of coasts, 662. 

 Basanite, 55. 

 Barton clay, 522. 

 Barytes, 65 g 

 Basalt, S9.g 

 Basaltic columns, 118, 702. 



origin of, 627. 

 Basset edges, 105.g 

 Bats, 347 .g 



(Chiropters), range of, in 

 time, 572. 



Eocene, 527. 

 Bathonian group, 449. 

 Bath oolite, 448. 

 Bathurst Island, Carbonife- 

 rous in, 324. 

 Bathyurus capax, 193. 



parvulus, 189. 



Saffordi, 193. 



senectus, 189. 

 Bathygnathus borealis, 424, 

 428.* 



Batrachians, 344.§ 

 Bavaria, Carboniferous in, 321. 

 Bay of Fundy, 653. 

 Beach formations, 664. 

 structure of, 93.g 



See SfiA-BEACHES. 



Bear, 422. 



Cavern, 559* 

 Bear-Opossum, 424.g 

 Beatricea, 257. 



Beaumont, Elie de, on systems 

 of mountain-elevation, 

 229, 412, 502, 533, 721. 

 Beavers, Post-tertiary, 562. 

 Beck, on the Saliferous, 247. 



on sea-water, 650. 

 Beetles, 420.g 

 Beinertia, 355. 

 Belemnitella mucronata,477,* 



479, 485, 487. 

 Belemnite, osselet of, 454.* 

 Belemnites, 156, 451,g 496. 



acutus, 464. 



clavatus, 464. 



densus, 446.* 



giganteus, 464, 



hastatus, 460, 465. 



irregularis, 464. 



paxillosus, 446, 454,* 464. 



pistilliformis, 454* 

 Belgium,Carboniferous in, 352. 



disturbances in, 412. 



Subcarboniferous in, 318. 



Tertiary in, 523. 

 Bellerophon bilobatus, 213,* 

 216, 221, 237. 



carbonarius, 349* 



patulus, 285. 



rotundatum, 210.* 



Urii, 349, 362. 

 Bellinurus rotundatus, 358.* 

 Belodon, 437. 

 Belonostomus, 427. 

 Beloteuthis, 454. 

 Beluga Leucas, 463. 



Vermontana, 552, 563* 

 Bembridge beds, 522. 

 Benton group, 469. 

 Bernardston, Mass., Upper 



Helderberg at, 270. 

 Beryl, 59.g 

 Beryx Lewesiensis, 485. 



superbus, 486. 

 Beyrichia Americana, 349. 



symmetrica, 242.* 

 Biche-de-mar, 159.g 

 Bilin, infusorial beds of, 524. 

 Binstead beds, 522. 

 Biotite, 57 .g 

 Birds, 152.g 



earliest in Europe, 453, 

 751* 



in Triassic, 425. 



number of living, 575. 



range of, in time, 572. 

 Birdseye limestone, 85,g 206. 

 Bischof on decomposition of 



wood, 360. 

 Bison latifrons, 563. 

 Bituminous coal, 68, 328, 360. 



shale, 73,g 218. 

 Bivalves, 157 g 

 Black Hills, Azoic at, 137. 



