782 



INDEX. 



Disturbances after the Palaso- 

 zoic, 403. 



preceding the Carbonife- 

 rous, 320. 



after the Mesozoic, 502. 



after the Tertiary, 530,533. 



in the age of Man, 586. 

 Diversity of rocks in different 



regions, 377. 

 Dodo, 578.* 

 Dolerite, 89.§ 

 Dolomite, 63,g 85.§ 

 Domite, 88.g 



D'Orbigny's subdivisions of 

 Jurassic, 448. 



subdivisions of Cretace- 

 ous, 480. 

 D'Orbigny on thickness of Me- 



sozoic, 493. 

 Dorcatherium, U. Missouri, 



519.$ 

 Dorsibranchiates, 154.$ 

 Drepanodon, U. Missouri, 519. 

 Drift, 535.$ 



in Arkansas, 754. 



in Europe, 540. . 



in Missouri, 753. 



in North America, 536. 



in South America, 540. 



modified, 536, 549. 



origin of, 541. 



See, further, Glacial and 

 Glacier. 

 Drift-sand hills, 628. 

 Dromatherium sylvestre, 426, 



429.* 

 Dryopithecus, 529.$ 

 Dudley limestone, 260. 

 Dugong, 423.$ 



Eocene, 529. 

 Dunes, 629.$ 

 Dust-showers, 629. 

 Dyas. See Permian. 

 Dyestone group, 384. 

 Dynamical Geology, 8,$ 603. 



agencies intensified in 

 the Post-tertiary, 570. 

 Dysaster, 160.$ 



canaliculatus, 464. 



ovalis, 465. 



ringens, 464. 

 Dysyntribite, 82.§ 



3, 653.$ 



Earth, relation of, to the uni- 

 verse, 3. 

 form of, and arrangement 



of land of, 10. 

 increase in mass of, above 



the water's level, after 



the Mesozoic, 569. 

 evolution of features of, 



731. 

 system in reliefs of, 23: 

 system in the courses of 



feature-lines of, 30, 731. 

 Earth's crust, effects on, of 



contraction, 718. 

 development, examples of 



law of, in geological 



history, 739. 

 Earthquake oceanic waves, 



655, 729. 



Earthquakes, nature and ori- 

 gin of, 728. 



evidence from, of the 

 earth's internal liquid- 

 ity, 684. 

 East Indies, trends of islands 



in, 37. 

 Eatonia singular is, 254,* 255. 

 Ebb-and-flow structure, 93.$ 

 Ecculiomphalus Canadensis, 

 192. 



intortus, 192. 

 Echidnus, 424.$ 

 Echinoderms, 158,$ 159. 



range of, in time, 400. 

 Echinoids, 159.$ 

 Echinoneus, 160.$ 

 Echinorhinus, California, 521. 

 Echinostachys cylindrica, 434. 



oblonga, 434. 

 Echinus, 148* 



granulatus, 552. 

 Eclogite, S0.$ 

 Edentates, 423.$ 



characteristic of Post-ter- 

 tiary, of South America, 

 565. 



earliest of, 528. 



range of, in time, 572. 

 Ehrenberg, on Diatoms of 

 Richmond, 512. 



on dust-showers, 629.* 



on green-sand, 749. 



on Polycystines, 612, 749. 

 Eifel, Devonian in, 295. 

 Elseacrinus, 274. 

 Elephant family, range of, in 



time, 572. 

 Elephas Americanus, 561.* 



primigenius, 560, 577. 



Miocene species of, 529. 



of U. Missouri, 522. 

 Elevations, causes of, 716. 



of Pacific islands, 587. 



Tertiary, in Europe, 533. 



See Heights. 

 Elotherium in U. Missouri, 



521.$ 

 Emmons, E., on the Triassic in 

 N. Carolina, 417, 426, 

 429. 



sections of Azoic by, 141. 

 Emys, Eocene, 517.$ 

 Enaliosaurs, 346.$ 



Carboniferous, 351. 



Jurassic, 451. 



range of, in time, 402, 572. 

 Encrinal limestone, 252, 281. 

 Encrinites, 161.$ 

 Encrinurus levis, 262. 

 Encrinus liliiformis, 148,* 



435,* 438. 

 Endoceras, 214.$ 



longissimum, 215. 



proteiforme, 214.$ 

 Endogens, 167.$ 

 Endopachys Maclurii, 517. 

 England, Carboniferous in, 

 352. 



Cretaceous in, 479. 



Devonian in, 294. 



disturbances in, 412. 



Jurassic in, 446. 



England, Post-tertiary, life of, 

 560. 



Permian in, 372. 



Subcarboniferous in, 318. 



Tertiary in, 522. 



Triassic in, 433. 



geological map of, 354. 

 Entomostracans, 153.$ 



range of, in time, 401. 

 Entomozooids, 749.$ 

 Eocene, 506,$ 522, 524. 



of Europe, climate of, 534. 



of N. America, climate of, 

 534. 



plants of, in Europe, 525, 

 534. 



See, further, Tertiary. 

 Eocidaris, 374. 

 Eolian limestone, 391, 392. 

 Eosaurus Acadianus, 352.* 

 Eospongia Eoemeri, 209. 



varians, 209. 

 Ephemera, 420.$ 

 Epiaster elegans, 478. 

 Epidote, 57.$ 

 Epiornis. See JEpiornis. 

 Epithemia Argus, 631.* 



gibba, 631* 



gibberula, 631* 



longicornis, 631.* 

 Epochs, origin of, 737. 

 Equisetum, 166,$ 334. 



columnare, 420. 

 Eqtius, 529. 



in Missouri Pliocene, 522. 

 Ericulus, 463. 

 Erinaceus, 529.$ 

 Erosion by action of rivers, 

 635. 



by oceanic movements 

 655. 



by drift sands, 631. 



extent of, over continents, 

 679. 



increase of, in the Post- 

 tertiary, 570. 



in New England, 679. 



over continents, when 

 near the ocean's level, 

 665. 



topographical effects of, 

 680. 



of the channel of Niagara, 

 «0. 



of the channel of the Co- 

 lorado, 569, 638* 

 Eruptions, volcanic, 694, 696. 

 Eryon arctiformis, 461.* 

 Eschara, 158* 

 Esopus millstones, 230. 

 Estheria Keuperiana, 438. 



minuta, 436,* 438. 



ovalis, 426 * 



ovata, 426.* 



parva, 426* 

 Ettingshausen, climate of Eu- 

 rope in the Tertiary,534. 

 Eucalyptocrinus decorus, 261. 

 Eucyrtidium Mongolfieri, 749. 

 Eugnathus, 427. 

 Eumys, in U. Missouri, 521.$ 

 Eunotia amphioxys, 631.* 



granulata, 631* 



