898 



INDEX. 





Ostrea bellovacina, 513, 518. 



congesta, 457, 467, 508. 



deltoidea, 449. 



distorta, 450. 



divaricata, 509. 



expansa, 449. 



falcata, 456. 



frons, 476. 



Georgiana, 499* 509. 



gregaria, 449. 



Knorri, 448. 



larva, 461 * 467, 468, 469, 476, 

 477. 



Leymerrii, 475. 



Liassica, 429, 448. 



malleiformis, 467. 



Marshii, 438* 449, 468. 



panda, 509. 



princeps, 519. 



sellaeforinis, 494, 499,* 509. 



soleniscus, 508. 



subovata, 468. 



vesicularis, 476. 



Vicksburgensis, 509. 



Virginiana, 510. 



Vomer, 509. 

 Otodus appendiculatus, 464* 

 467. 



obliquus, 518. 

 Otozoum Moodii, 411 * 413, § 



417. 

 Ottawa basin, remarks on, 194, 



216, 380, 389, 587. 

 Ottawa River in existence, 287. 

 Outcrop, 94.§* 

 Outlining of land and water, 



867. 

 Overlap, 101,§ 217, 869. 

 Ovibos bombifrons, 567. 



cavifrons, 567. 

 Ovis, 520. 

 Ovula, 483. 



first of, 475. 

 Owen, D D., analysis of lime- 

 stone, 74. 



Lake Superior trap, 185 



Galena lead-region, 197. 

 Owen, R. (of London), Dro- 

 matherium, 415, 417. 



Bathygnathus, 417. 



Quaternary Britain, 564. 



Tberiodonts. 851. 

 Owen, R. (of U. S.), on the po- 

 sitions of the outlines of 

 continents, 38. 

 Owl, 503, 510. 

 Ox, 416, 518, 565, 567, 568. 



family ,range of, in time,589.* 

 Oxford clay, 435. 



Oolyte. 435. 

 Oxfordian group, 435. 

 Oxysena lupina, 510. 

 Oxydation, 703. 

 Oxyrhina,467,475, 510. 

 Oyster, 119,* 126,§ 500, 510, 

 513, 561. 



Crab found in, 375. 



family, 460, 469, 493. 



shell, analysis of, 60. 



Pachyderms, 516, 519. 



Pachyodon Listeri, 448. 



Pachypteris, 348. 



Pachytheca, 245. 



Pachytherium, 570. 



Pacific Ocean, 11, 25, 35. 

 volcanoes in, 723, 724 

 change of level in, indicated 

 by coral islands, 583, 783. 



Pacific Ocean, coral-formation 

 of, 618. 



system of currents in, 40, 669. 

 Pacific-border region, 401, 409, 



452, 454, 491, 783, 795. 

 Pacific island-chains, 29,* 32. 

 Pacific islands, elevations 

 among, 584. 



erosion in, 642, 643. 

 Pacific Railroad, lignites, 491. 

 Packard, Quaternary shells, 



553. 

 Palaeacis, 302. 



cuneata, 302. 



obtusa, 302. 

 Palaeacodon verus, 510. 

 Palaeastacus, 475. 

 Palaeaster, 207 



matutina, 199 * 202. 



Niagarensis, 117,* 229. 

 Palaeechinoids, range of, in 



time, 386 * 

 Palaeechinus, 303. 

 Palasinachus longipes, 441. 

 Palselodi, 516. 

 Palasmon, 350. 

 Palaeocampus anthrax, 342. 

 Palasocaris typus, 334,* 342. 

 Palaeocastor, 506. 511. 

 Palaeocrinus, 204 



striatus, 190 * 

 Palseocyon, 516,§ 518. 

 Palaeocyclus rotuloides, 224 * 



238. 

 Palseocystites tenuiradiatus, 



191. 

 Palaeolagus, 511. 

 Palaeolithic era, 574, 576. 

 Palaeomanon, 228 

 Palaeoniscus, 275, 343, 351, 372, 

 428 



comptus, 372. 



elegans, 372. 



Freieslebeni,371,*372. 



lepidurus, 264* 

 Palaeophis Halidanus, 509. 



laticeps, 510. 



toliapicus, 518. 



typhaaus, 516, 519. 

 Palaeophycus, 177. 



congregatus, 177 



incipiens, 177. 

 Paheopteris, 271, 348. 

 Palaeopyge Ramsayi, 180. 

 Palaeosaur, 338. § 

 Palaeosyops, 504. § 



levidens, 510. 



major, 510. 



paludosus, 510. 

 Palseothere, 517, § 518. 

 Palaeotherium, 504, 505, 517,§ 

 519. 



crassum, 519. 



curtum, 517, 519. 



Magnum, 517,* 519. 



medium, 519. 



minimum, 519. 



minus, 519. 

 Palaeotringa, 468. 

 Palasotrochis, 160. 

 Palaeoxyris, 349. 

 Palaeozamia megaphylla, 448. 

 Palagonite. See Tdfa. 

 Palapteryx, 580. 

 Palasterina Jamesii, 204, 205* 

 Paleozoic ages, lengths of, 380, 

 591. 



general facts of, 373. 



geography of, 389. 



Paleozoic mountains, 390. 



rivers, 390. 



rocks, proportion of, to other 

 rocks, 586, 591. 



rocks, thickness of ,373, 380. 



section of the Mississippi 

 basin, 374.* 



section at Bore Springs, Va,, 

 396.* 



section at Pottsville, Pa., 

 396.* 



species, size of, 383. 



time, 140, 162, 591. 



time-ratios, 381. 

 Palephemera mediaeva, 410,* 



416 § 

 Palinurus, shell of, 60. 

 Palisades, Triassic in, 404, 405, 



418. 

 Paliurus Colombi, 498. 

 Pallium, 123. § 

 Palmieri, on volcanic hematite, 



711. 

 Palms, 471, 497, 514, 526, 594, 

 609. 



first of, 403, 459. 



range of, in time, 140.* 

 Paloplotherium annectens, 519 

 Palpipes priscus, 441.* 

 Paludina 450, 482, 590. 



carinifera, 450. 



first of, 453. 



fluviorum, 450.* 



lenta, 519. 



orbicularis, 519. 



ponderosa, 550. 

 Pampas, 15. 



Pander, on Conodonts, 208. 

 Pangolin, 518. 

 Panopaea, 475. 



Norvegica, 475. 



oblongata, 509. 



reflexa, 495. 

 Panther, 568. 

 Paolia vetusta, 300,* 304. 

 Parabatrachus Colei, 351. 

 Paradoxides, 172, 175,§* 178, 

 179, 180, 181, 188. 



Aurora, 180. 

 Paradoxides Eennetii, 176. 



Bohemicus, 180. 



Davidis, 180. 



Ilarlani,175,*176. 



Hicksii, 180. 



lamellatus, 176. 



range of, in time, 387-* 

 Paragonite, 54. § 



slate, 73.§ 

 Parahyus vagans, 510. 

 Paramys delicatus, 510. 



leptodus, 510. 



robustus, 510. 

 Parasitic cones, 738. 

 Parasmilia, 474. 

 Paris, artesian wells in, 664. 

 Paris basin, Jurassic in, 433 



Tertiary of, 512, 513. 

 Parks in Rocky Mts., 21. 

 Parma sandstone, 377- 

 Parophyte, 73,§ 152. 

 Parrot, 516. 



coal, 315. 

 Passalacodon litoralis, 510. 

 Patella, 203. 

 Pearl-spar, 222. 

 Pearlstone, 77. § 

 Peat, 62,§ 616.§ 



beds, 354, 616. 



composition of, 361. 



