816 



INDEX. 



Owen, R. (of London), Dro- 

 matherium, 415, 417. 



Bathygnathus, 417. 



Quaternary Britain, 564. 

 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 clav, 435. 



Oolyte, 435. 

 Oxfordian group, 435. 

 Oxydation, 688. 

 Oxygen, 49 

 Oxyrhina, 467, 475, 510. 



hastalis, 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. 



active volcanoes in, 703. 



change of level in, indicated 

 by coral islands, 583. 



coral-formation of, 618. 



svstem of currents in, 40, 



"658. 

 Pacific-border region, 401, 409, 



452, 454, 491, 751. 

 Pacific island-chains, 29 * 32, 



748. 

 Pacific islands, elevations 

 among, 584. 



erosion in, 639. 

 Pacific Railroad, lignites along, 



491. 

 Palasacis, 302. 



cuneata, 302. 



obtusa, 302. 

 Palseastacus, 475. 

 Palaeaster, 207. 



matutina, 199,* 202. 



Niagarensis, 117,* 229. 

 Palaeechinoids, range of, in 



time, 386* 

 Palaeechinus, 303. 

 Palajinachus longipes, 441. 

 Palaelodi, 516. 

 Palaemon, 350. 

 Palceocampus anthrax, 342. 

 Palaeocaris typus, 334,* 342. 

 Palaeocastor, 511. 

 Palaeocrinus, 204. 



striatus, 190.* 

 Palaeocyon, 516, § 518. 

 Palseocyclus rotuloides, 224,* 



238. 

 Palceocystites tenuiradiatus,191. 

 Palseolagus, 511. 

 Palaeolithic era, 574, 576. 

 Palaeomanon, 228. 

 Palseoniscus, 275, 343, 351, 372, 

 428. 



eoniptus, 372. 



elegans, 372. 



Freieslebeni, 371* 372. 



lepidurus, 264.* 

 Palaeophis Halidanus, 509. 



laticeps, 510. 



toliapicus, 518. 



typhaeus, 516, 519. 



Palaeophycus, 177. 



congregatus, 177. 



incipiens, 177- 

 Palseopteris, 271, 348. 

 Palaeopyge Kamsayi, 180. 

 Palaeosaur, 338. § 

 Palaeosyops, 504. § 



levidens, 510. 



major, 510. 

 Palaeothere, 517,§ 518. 

 Palaeotherium, 504, 505, 517, § 

 519. 



crassum, 519. 



curtum, 517, 519. 



magnum, 517,* 519. 



medium, 519. 



minimum, 519 



minus, 519. 

 Palaaotnnga, 468. 

 Palaaotrochis, 160. 

 Palasoxyris, 349. 

 Palaeozamia megaphylla, 448. 

 Palagonite, 759. 

 Palapteryx, 580. 

 Palasterina Jamesii, 204, 205* 

 Paleozoic ages, lengths of, 380, 

 591. 



general facts of, 373. 



geography of, 3S9. 



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 Potts ville, Pa., 

 396 * 



species, size of, 383. 



time, 140, 162, 591. 



time-ratios, 381. 

 Palephemera mediasva, 410,* 



416 § 

 Palinurus, shell of, 60. 

 Palisades, Triassic in, 404, 405, 



418. ' 

 Paliurus Colombi, 498. 

 Pallial impression, 126. § 

 Pallium, 123. § 

 Palmieri, on volcanic hematite, 



695. 

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



609. 

 Palms, first of, 403, 459. 



range of. in time, 140.* 

 Paloplotherium annectens,^>19. 

 Palpipes priscus, 441.* 

 Paludina, 450, 482, 590. 



carinifera, 450. 



first of, 453. 



tluviorum, 450.* 



lenta, 519. 



orbicularis, 519. 



ponderosa, 548. 

 Pampas, 15- 



Pander, on Conodonts, 208. 

 Pangolin, 518. 

 Panopasa, 475. 



Norvegica, 519. 



oblongata, 509. 



refiexa, 495. 

 Panther, 506, 568. 

 Paolia vetusta, 300 * 304. 

 Parabatrachus Colei. 351. 

 Paradoxides, 172, 175, §* 178, 

 179, ISO. 181, 188. 



Aurora, 180. 



Paradoxides Bennetii, 176. 



Bohemicus, 180. 



Davidis, 180. 



Harlani, 175,* 176. 



Hicksii, 180. 



lamellatus, 176. 



range of, iu time, 387.* 

 Paragonite, 54. § 



slate, 69. § 

 Paramys leptodus, 510. 



robustus, 510. 

 Parasitic cones, 710. 

 Parasmilia, 474. 

 Paris, artesian wells in, 654. 

 Paris basin, Jurassic in, 433. 



Tertiary of, 512. 513. 

 Parks in Rocky Mts., 21. 

 Parma sandstone, 377. 

 Parophyte, 73, § 152. 

 Paroxysmal changes of level, 



584. 

 Parrot, 516. 



coal, 315. 

 Passalacodon litoralis, 510. 

 Patella, 203. 

 Pearl-spar, 222. 

 Pearlstone, 77. § 

 Peat, 62,§ 616.§ 



beds, 354, 616. 



composition of, 361. 

 Pebbles in alluvium, 650. 

 Peccary, 506, 511, 565, 568. 

 Pecopteris, 330, 348, 349, 370, 

 433. 



approximate, 449. 



arborescens, 327* 333, 331, 

 357. - 



cyathea, 330, 331. 



diversa, 449. 



nervosa, 331. 



plumosa, 331. 



polymorpha, 331. 



preciosa, 271. 



Sillimaui, 331. 



Stuttgartensis, 407,* 409. 



unita, 330. 



velutina, 331. 

 Pecten, 428, 433, 475, 495, 508. 



aequivalvis, 448. 



asper, 476. 



circularis, 476. 



concentricus, 510. 



decennarius, 510. 



Groenlandicus, 551. 



irradians, 561. 



Islandicus, 551, 555. 



Jacobasus, 577. 



lens, 449. 



Liasinus, 429. 



Lyelli, 509. 



maximus, 577. 



Mortoni, 500,* 511. 



Poulsoni, 499* 509. 



propatulus, 510. 



5-costatus, 468, 476. 



vagans, 449. 



Virginianus, 510. 



Valoniensis, 429. 

 Pectinated rhombs, 129. § 

 Pectunculus, 483. 



glycimeris, 577. 



variabilis, 519. 

 Peculiarities of life continuous, 



599. 

 Pegmatyte, 68. § 

 Pele's hair, 708. § 

 Pelican, 516. 

 Peltura holopyga, 178. 

 Pemphigaspis, 178. 



