Coleopters, 351. 



Colonomys celer, 510. 



Color lost in metamorphism, 



of rocks, 839. 



original, on fossil shells, 308, 

 515. 

 Colorado, Carboniferous in, 293. 



Cretaceous in. 454. 



Jurassic in, 4oo. 



Lignitic in, 457. 



Quaternary in, 532. 



Subcarboniferous in. 296. 



terraces in, 549, 792.* 



Tertiary in. 491,493,495. 



trachyte in, 742.* 



Triassic in, 406. 

 Colorado River, Canons of, 644, 

 645.* 



Cretaceous on, 455. 



Triassic on, 407. 

 Colossochelys Atlas, 516, 520. 

 Colpocaris, 267. 

 Colubridae, 516. 

 Colunibella sulcata, 519. 

 Columbia River, volcanic rocks 



of, 524. 

 Columnaria, 190. 204. 



alveolata, 199 * 202. 

 Columnar structure, 87, §* 

 721.* 



surfaces in Niagara group, 222. 

 Comanche Peak group, 457. 

 Comarocystites Shumardi. 203. 

 Comatulids, 128, § 437, 595. 

 Comb, 114. § 

 Compact rocks. 63. § 

 Compound bedding, 82. § 

 Comprehensive type.-, 3S2, 597. 

 Compsacanthus levis, 343. 

 Compsemys, 509. 

 Comptonia, 515. 

 Comstock lode. 717. 

 Conchifers. See Lamelli- 



BRAXCHS. 



Conchiosaurus, 428. 

 Concretionary rocks, 63. § 



structure, 85,§* 222, 628. 

 Concretions, origin of, 339, 478, 



628. 

 Condon. T.. tufa deposits, 735. 

 Condrusian group, 306. 

 Cones, fossil, 329. 

 Conferva?, 611. 

 Conformability, 100. §* 

 Conformitv of strata. 101. §*. 

 Conglomerate, 62, 67,§ 230, § 

 420. 



limestone, 167, 184. 

 Conifers, 134. § 321, 330. 



ash of. 3*35. 



Carboniferous, 296, 323, 328, 

 330, 356, 362. 



Hamilton, 270. 



pith of. 331. 



range of, in time, 140.* 



Tertiarv. 497. 



Triassic. 408. 

 Conioaaurus. 475. 

 Con is ton grits. 244. 

 Connecticut, Archasan in, 150. 



Quaternary in, 530, 531, 549, 

 554. 



terraces in, 548. 



trap dikes of, 20*418*452. 



Triune in, 405, 419. 

 Connecticut Valley, Devonian 

 in, 290. 



of Triassic age, 420. 



INDEX. 



Connecticut Valley, submarine 



continuation of, 540. 



terraces in, 546,* 550, 556. 



trap dikes of, 20,* 418* 452. 



Triassic in, 404. 



Connell, analysis of coprolite, 



61. 

 Conocardium, 284, 610. 

 gequicostatum, 247. 

 Biumenbachii, 189, 190. 

 dipterum, 208.* 

 iminaturum, 203. 

 Meekanum, 303. 

 trigonale, 260,* 261. 

 Conocephalus. See Coxocory- 



phe. 

 Conocorvphe, 16S, 17S, 180, 188, 

 189,' 190, 192. 

 Adamsii. 178. 

 applanata, ISO. 

 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, 

 755. 

 causes of, 707, 708, 709, 711, 

 760. 

 Constituents of rocks, 47. § 

 Continent, definition of, 29. § 

 erosion over, when near the 

 ocean's level, 686. 

 Continents and oceans, early 

 outlined, 160. 

 arrangement of, 11, 13, 828. 

 distinctive animal types of, 



610. 

 formation of, 797, 816. 

 growth of, 250, 286. 

 independent, 677. 

 mean heights of, 14. 

 position of outlines of, 38- 

 pressure against, S26. 

 submerged borders of, 11, 



422*683. 

 system in reliefs of, 23, 816. 

 volcanoes within, 724. 

 Contraction, change of level 

 from, 721. 

 effects of, in a cooling sphere, 



782. 

 in glass and rock, 722. 

 Conularia, 203,§ 229 253, 303, 

 371. 

 subtilis. 247. 

 Trentoneusis, 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. 

 its consequences, 782. 



879 



Coomhala grit, 306. 

 Coos group, 237, 256. 

 Cope, E. D., Bathygnathus, 

 417. 



Cretaceous turtles, 466. 



Laelapg, 404. 



Moaasaurs, 468: 



Tertiary mammals, 504. 



Port Kennedy bone-cave, 567- 



Rhabdopelix, 417. 



Tertiary bird, 502. 



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. 

 Corallium nobile, 60. 

 Coral animals destroyed by 

 subsidence, 209. 



limits of growth of, 617. 

 Coral islands, 617, 618.* 



chalk on, 477,619. 



evidence from, of change of 

 level in the Pacific, 583, 

 783. 



gvpsum on, 235. 



sections of, 619,* 624 * 



works on, 625. 

 Coral limestone, 75, § 617. 



Raz, 433. 

 Coral reefs, 617, 620, 622, 624. 



rate of increase of, 591. 



reef seas, isothermal line 

 limiting, 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. 



borassifolia, 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. 



