INDEX. 



797 



Colonoceras agreste, 510. 

 Colonomys celer, 510. 

 Color lost, in nietamorphism, 

 725. 



of rocks, 759. 



original, on fossil shells, 308, 

 515. 

 Colorado, Carboniferous in, 293. 



Cretaceous in 454. 



Jurassic in, 433. 



Lignitic in, 457. 



Quaternary in, 532. 



Subcarboniferous in, 296. 



terraces in, 549. 



Tertiary in, 491, 493, 495. 



Triassic in, 406. 



upheaval in, 740.* 

 Colorado River, Canons of, 640, 

 641.* 



Cretaceous on, 455. 



Triassic on, 407. 

 Colossochelys Atlas, 516, 520. 

 Colpocaris, 267. 

 Colubridae, 516. 

 Columbella sulcata, 519. 

 Columbia River, -volcanic rocks 



of, 524. 

 Columnaria, 190, 204. 



alveolata, 199,* 202. 

 Columnar structure, S7,§* 108.* 



surfaces in Niagara group, 222. 

 Comanche Peak group, 457. 

 Comaroo stites Shumardi, 203. 

 Comatulids, 128,§ 437, 595. 

 Comb, 114 § 

 Compact rocks, 63. § 

 Compound bedding, 82. § 

 Comprehensive types, 382, 597. 

 Compsacanthus levis, 343. 

 Compsemys, 509. 

 Comptonia, 515. 

 Conchifers. See Lamelli- 



BRANCHS. 



Conchiosaurus, 428. 

 Concretionary rocks, 63. § 



structure, 85,§* 222, 628. 

 Concretions, origin of, 339, 478, 



628. 

 Condrusian group, 306. 

 Cones, fossil, 329. 

 Conferva?, 611. 

 Couformability, 100.§* 

 Conformity of strata, 101. §* 

 Conglomerate, 62, 65, § 230,§ 

 420. 



limestone, 167, 184. 

 Conifers, 134, § 321, 330. 



ash of, 365. 



Carboniferous, 296, 323, 328, 

 330. .356, 362. 



Hamilton, 270. 



pith of, 331. 



range of, in time, 140.* 



Tertiary, 497- 



Triassic, 408. 

 Coniosaurus, 475. 

 Coniston grits, 244. 

 Connecticut, Archaean in, 150. 



Quaternary in, 530, 531, 549, 

 554. 



terraces in, 548. 



trap dikes of, 20,* 418,* 452. 



Triassic in, 405, 419. 

 Connecticut Valley, Devonian 

 in, 290. 



of Triassic age, 420. 



submarine continuation of, 

 540. 



terraces in, 559.* 



Connecticut Valley, trap dikes 

 of, 20 * 418,* 452. 

 Triassic in, 404. 

 Connell, analysis of coprolite, 



61. 

 Conocardium,284, 610. 

 aequicostatum, 247. 

 Blumenbaohii, 189, 190. 

 dipterum,208.* 

 inimaturum, 203. 

 Meekanum, 303. 

 trigonale, 260,* 261. 

 Conocephalus. See Conocory- 



phe. 

 Conocoryphe, 168, 178, 180, 188, 

 189, 190, 192. 

 Adamsii, 178. 

 applanata, 180. 

 bufo, 180. 

 humerosa, 180. 

 invita, 180. 

 Iowensis, 177,* 178. 

 Matthewi, 175*176. 

 minuta, 177,* 178. 

 striata, 180. 

 Teucer, 178. 

 trilineata, 178. 

 variolaris, 180. 

 Vulcanus, 178. 

 Conodont teeth, 208. 

 Conophyllum, 229. 

 Conoteuthis, 475. 

 Conrad, T. A., on California 



Cretaceous, 458. 

 Consolidation of strata, 400, 

 725. 

 causes of, 692, 693, 694, 695, 

 760. 

 Constituents of rocks, 47 § 

 Continent, definition of, 29. § 

 erosion over, when near the 

 ocean's level, 672. 

 Continents and oceans, early 

 outlined, 160. 

 arrangement of, 11, 13. 

 distinctive animal types of, 



610. 

 formation of, 738. 

 growth of, 250, 286. 

 independent, 666. 

 mean heights of, 14. 

 position of outlines of, 38. 

 pressure against, 745. 

 submerged borders of, 11, 



422,* 671. 

 system in reliefs of, 23, 744. 

 volcanoes within, 704. 

 Contraction, change of level 

 from, 701. 

 effects of, in a cooling sphere, 



712, 735. 

 in glass and rock, 702. 

 Conularia, 203,§ 229, 253, 303, 

 371. 

 subtilis, 247. 

 Trentonensis, 203.* 

 last of, 449. 

 Conus, 475, 508. 

 adversarius, 511. 

 deperditus, 518. 

 tortilis, 509. 

 Cook, G. H., on New Jersey 

 Cretaceous, 457. 

 on subsidence of U. S. coast, 

 583. 

 Cooling of the globe, 147, 754. 



its consequences, 735. 

 Coomhala grit, 306. 

 Coos group, 237, 256. 



Cope, E. D., Bathygnathus, 417. 



Cretaceous turtles, 466. 



evolution, 604. 



Laelaps, 464. 



Mosasaurs, 468. 



papers by, 468. 



Port Kennedy bone-cave, 567. 



Rhabdopelix, 417- 



Triassic Dinosaurs, 413, 414. 

 Copper, bowlders of, 529. 



of Lake Superior, 185. 

 Copper ore in the Oneida, 222. 



in Triassic, 420. 



in Cretaceous, 458. 

 Copperas, 268. 

 Coprolites, 60. § 



analyses of, 61. 



Jurassic, 445, 446.* 



Permian, 373. 



Saurian, 445, 446.* 



Triassic, 417, 428. 



Upper Silurian, 247. 

 Corallian group, 435. 

 Corallines, 60, 135. § 

 Coralline Crag. 513, 519. 



limestone, 221, 230. 

 Coralline zone, 611. 

 Coral lium nobile, 60. 

 Coral animals destroyed by sub- 

 sidence, 209. 



limits of growth of, 617. 

 Coral islands, 617, 618.* 



chalk on, 477, 619. 



evidence from, of change of 

 level in the Pacific, 583, 

 735, 753. 



gypsum on, 235. 



sections of, 619,* 624.*' 



works on, 625. 

 Coral limestone, 75, § 617- 



Rag, 433. 

 Coral reefs, 617, 620, 622, 624. 



rate of increase of, 591. 



reef seas, isothermal line lim- 

 iting, 43, 617. 



temperature limiting, 610. 



thickness of, 623. 

 Coral rocks, 619. 

 Corbicula, 468, 493, 508. 



sequilateralis, 508. 



fracta, 508. 



intermedia, 501,* 508. 



securis, 508. 

 Corbis, 483. 

 Corbula, 475, 508. 



bicarinata, 509. 



gibbosa, 509 



longirostris, 518. 



mactriformis, 501,* 508. 



pisum, 519. 

 Cordaites, 328, § 329, 349, 351. 



borassifolin, 297, 330,331. 



Robbii, 269,* 271. 

 Cordillera, 15. § 

 Cork, the composition of, 361, 



362. 

 Cormorants in the Cretaceous, 

 466. 



in the Tertiary, 503, 511. 

 Cornbrash , 435. 

 Corniferous epoch, 254. 



limestone, 254, 256. 



period, 254. 

 Cornstone, 282. 

 Cornus, 497. 



Corsica range, elevation of, 525. 

 Corydalis Brongniarti, 351. 

 Corylus, 497. 



McQuarryi, 498. 



