888 



INDEX. 





Hopkins, W., earth's interior, 



808, 832. 

 Hornblende, 54,* 755, 762. 

 Hornblende rock, 237, 766. 



schist, 73,§ 74,§ 765. 



series of rocks, 73,§ 78. § 

 Hornblendyte. See Amphibo- 



lyte. 

 Hornstone, 53,§ 255, 455. 



in Corniferous, with Proto- 

 phytes, 257. 



in Oriskany, 241. 



origin of, 257, 265. 

 Horse. 114,§ 495, 505 * 506-510, 

 564, 565, 567, 568, 571, 572, 

 576, 577, 601. 



first, 505. 

 Horse-shoe crab, 122,§ 333. 

 Horse-tails, 327. § 

 Horton series, 296. 

 Hot-springs, 707, 749. 



deposits from, 707, 709, 750. 



life of, 611. 

 Hot waters, action of, 453, 703. 

 Hough ite, 157. 

 Hubbard, O. P., on Triassic 



coal, 406. 

 Hudson River, in existence, 287. 

 Hudson River epoch, 164, 194. 



shales, 195, 196. 



valley, submarine continua- 

 tion of, 422,* 540, 686. 

 Human bones, analysis of, 60. 



relics, 573 * 



Humming-birds, 610. 



Humphreys and Abbot, on the 



Mississippi River delta, etc., 



633, 640, 656, 658, 660, 682. 



Hunt, E. B., on Carboniferous 



temperature, 353. 

 Hunt, T. S., age of lead veins, 

 151. 



analyses by, 60, 61, 71, 73, 74. 



anorthosyte, 69. 



Archaean origin of later 

 rocks, 161. 



carbon in Archaean, 157. 



carbonic acid disintegrating 

 rocks, 156. 



decomposition of rocks, 156, 

 703, 711. 



dolomization, 769. 



Eozoon, 158. 



igneous Archaean, 157. 



moisture in rocks, 667. 



mountain-making, 820. 



Taconic system, 835, 836. 



white trap, 76. 

 Huron group, 376, 377. 

 Huronia vertebralis, 209. 

 Huron ian period, 159. 



fossils in, 167. 

 Hutton, erosion, 647. 



mountain making, 831. 

 Huttonia, 34<. 

 Huxley, T. H., fossil man, 575. 



Eosaurus, 343. 



Rhizopods of N.Atlantic, 615. 

 Hysena, 519 § 520. 



crocuta, 564. 



spelaea, or Cave Hyaena, 563. 

 Hyaenarctos, 519, § 520. 

 Hyaenodon, 506, 511, 519. 



dasyuroides, 518. § 



leptorhynchus, 519. 

 Hyalomelan, 79.§ 

 Hyatt, A., on Be'atricea, 228. 



on evolution, 604. 

 Hybocrinus, 204. 



Hybodus major, 429. 



minor, 262,* 428. 



Mougeoti, 429. 



plicatilis, 262,* 428, 429. 



reticulatus, 449. 



strictus, 450. 



subcarinatus, 450. 

 Hybodonts, 263, §* 304, 308. 

 343,475. 



range of, in time, 388* 589.* 

 Hydra, 117,* 130. §* 

 Hydraulic limestone, 69. § 



analyses of, 233, 237. 

 Hydrogen, 52.§ 

 Hydroids, 130.§* 

 Hydromica, 54 § 



schist, 72,§ 761. 

 Hydrotalcite, 157. 

 Hydrous aluminous and mag- 



nesian rocks, 75 § 

 Hyena, 506, 564, 571, 576. 

 Hylaeosaur, 338,§ 445,§ 450. 

 Hylerpeton Dawsoni, 343. 

 Hylonomus aciedentatus, 343. 



Lyelli, 343. 



Wyinani, 343. 

 Hymenocaris vermicauda, 



180.* 

 Hymenophvllites, 330. 



Clarkii, 297. 



furcatus, 331. 



Gersdorffii, 271. 



Ilildrethi, 326,* 330, 331. 



obtusiiobus, 271. 



spinosus, 331. 

 Ilymenopters, 441, 484. 

 Hyolites, 208. 



American us, 178. 



gregarius, 178. 



impar, 178. 

 Hyopotamus, 511, 519. 



bovinus, 519. 

 Hyopsodus, species of, 510. 

 Hypanthocrinus decorus, 229, 



247. 

 Hyperyte, 74 § 

 Hypersthenyte, 74. § 

 Hypnum, 616. 

 Hypogene rocks, 762. § 

 Hyposaurus, 338. § 



Rogersi, 467. 



ferox, 467. 

 Hypostome, 174.§ 

 Hyrachyus, 504. § 



agrarius, 510. 



Bairdianus, 510. 



singularis, 510. 

 Hyracodon, 511. 



Nebrascensis, 506,* 407, 511. 

 Hyracothere, 516. 

 Hyracotherium leporinum, 518. 

 Hystrix, 511, 520. 



Ibex, 572. 

 Ibis, 516. 

 Ice, 687, 695, 799. 

 of rivers and lakes, effects 



of. 688. 

 See, further, Glaciers. 

 Icebergs, origin and action of, 

 531, 701. 

 transported bv the Labrador 



current, 534, 678. 

 transportation of stones by, 

 534, 678, 701. 

 Iceberg theory of the Drift, 



534, 540. 

 Iceland, geysers of, 750. 

 glaciers in, 689. 



Ichthyocrinus levis, 226 * 229, 



248. 

 Ichthyodectes, 467. 

 Ichthyornis, 466, 468. 

 Ichthyosaurus, 339, § 343, 428, 

 429, 443, 449, 450, 474. 475, 

 476, 484. 

 Arctic, 452. 

 communis, 442,* 449. 

 intermedins, 449. 

 tenuirostris, 449. 

 Idaho, Jurassic in, 431. 

 Potsdam in, 182, 184. 

 Quebec in, 182, 184. 

 Subcarboniferous in, 296. 

 terraces in, 549. 

 Igneous action in Archaean, 

 157. 

 in Canadian, 185. 

 in Mesozoic, 417, 486. 

 in Tertiary, 524. 

 Igneous eruptions, non-vol- 

 canic, 740, 842. See Vol- 

 canic. 

 interior of the globe, evi- 

 dences of, 71", 746, 808. 

 rocks, 63,§ 76, § 738, 746. 

 Iguana, 338, § 445. 

 Iguanodon, 338, § 445, § 450, 

 464, 474, 475, 476. 

 Mantelli, 445* 

 Ilex, 497, 498. 

 Illaenurus, 178. 



Illgenus, 174,§ 188, 190, 228, 

 253. 

 Arcturus, 191. 

 Barriensis, 227,* 229, 248. 

 Bavfieldi, 192. 

 Bowmani, 208. 

 crassicauda, 204. 

 Davisii, 208* 

 range of, in time, 387.* 

 Illicium, 498. 



Illinois, Carboniferous in, 291, 

 321,358. 

 Hamilton in, 2R7. 

 lead mines of, 197. 

 Lower Helderberg in 237. 

 Lower Silurian in, 210. 

 Niagara in, 221. 

 Oriskany in, 242. 

 Quaternary in, 528, 529. 

 rocks of , 378. 

 Subcarboniferous in, 293, 



294. 

 Tertiary in, 491. 

 Trenton in, 196. 

 uplifts in, 290,* 308. 

 Upper Helderberg in, 256. 

 Ilyanassa obsoleta, 561. 

 Independent regions of prog- 

 ress, 145. 

 India, Quaternary in, 533. 



Tertiary, Mammals of, 520. 

 Indian Ocean, 25. 

 currents of, 40, 669. 

 in the Triassic, 430. 

 volcanoes in, 724. 

 Indiana, Carboniferous in, 291, 

 321, 345, 358. 

 Clinton in, 220. 

 Lower Helderberg in, 237. 

 Oriskany in, 242. 

 oil wells in, 257. 

 Quaternary in, 528, 529. 

 Subcarboniferous in, 293, 



303, 304. 

 Upper Helderberg in, 256. 

 Individualities in nature, 1 . 



