INDEX. 



805 



Halvsites gracilis, 204.* 



la'st of, 23S. 



range of, in time, 386. 

 Hamilton beds, section of, on 

 Lake Erie, 267.* 



epoch, 254, 266. 



group, 254, 266. 



period, 254, 266. 

 Ha mites, 462. § 



attenuatus, 473,* 475, 476. 



Fremonti, 468. 



rotundus, 476. 



simplex, 476. 



Vancouverensis, 467. 

 Hanging-wall, 113. § 

 Haplophlebium, 336. 



Barnesii, 343. 

 Haploscapha grandis, 467. 

 Hare, 506, 564, 577. 

 Harlech beds, 163, 179. 

 Harmony of the Fauna and 



Flora of an age, 384, 430. 

 Harpes, 190, 204, 208, 228, 249. 

 Harpides, 190. 



Atlanticus, 250. , 



rugosus, 250. 

 Hastings Sand, 435. 

 Haughton, analyses of granyte, 



68. 

 Hawaian group, map of 30.* 



origin of, 723. 

 Hawaii, erosion on, 640. 



map of part of, 705,* 712. 



profile of, 704.* 



volcanic action on, 704,* 710, 

 711, 712* 713, 714, 715. 



recent changes of level in, 

 584. 

 Hawes, G. W., analyses of 



plants, 362, 366. 

 Hawlea, 348. 



Hayden, F. V., Lignitic of 

 Rocky Mts., 458. 



Potsdam in Dakota, 168. 



Tertiary lakes in Rocky Mts., 

 491. 



Triassic in Colorado, 406. 

 See, further, Meek. 

 Hayesine, 76. § 

 Hazel, 514. 



Headless Mollusks, 125. § 

 Headon beds, 513, 519. 

 Heat, agency of, in metamor- 

 phism, 726. 



effects of, 697. 749. 



endured by life, 611. 



from crushing, 698, 749. 



internal, of globe, 699. 



sources of, 697, 762. 

 Heavy spar. 58. § 

 Hedgehog, 577. 

 Heer, on Arctic Devonian, 283. 



on Arctic Tertiary, 526. 

 Height about head-waters of 

 the Mississippi, 22. 



mean, of Himalayas, 26. 



of Andes, 21, 22. 



of Gothic Mt., 718. 



ofGreenMts.,195, 214. 



of Hawaian Mts., 703. 



of Mt. Katahdin, 530. 



of Mt. Whitney, 453. 



of Rocky Mts., 685, 740. 



of Sierra Nevada, 24. 



of some volcanoes, 703, 704. 

 Heights of plateaus, 16, 21, 

 22. 



of terraces, 548. 550. 



of Drift deposits, 528. 



Helderberg, Lower, 142, 164, 

 236. 



American species of, occur- 

 ring elsewhere, 248. 

 Helderberg, Upper, limestones, 

 254. 



a coral-reef period, 255. 

 Helicoceras, 462. § 



Mortoni, 468. 

 Helicopsyche, 612. 

 Helicotoma planulata, 201,* 

 203. 



uniangulata, 188,* 189. 

 Heliolites, 206, 207, 229, 230, 

 288. 



Grayi, 247. 



interstincta, 208, 247. 



porosa, 265, 284. 



pyriformis, 248. 



spinipora, 225,* 229. 

 Heliophvllum, 256. 



Halli, 272 * 274. 

 Helix, 119.*§ 



labyriuthiea, 519- 



occlusa, 519. 

 Helmholz, on temperature of 



glaciers, 682. 

 Helminths, 123. § 

 Helodus, 304, 351. 

 Hematite, 59,§ 74,§ 318, 688, 



727. 

 Hemeristia occidentalis, 343. 

 Hemiaster, 466, 474 . 



Bailyi, 476. 



Humphreysianus, 469. 

 Hemicardium Wulfeni, 429. 

 Hemicidaris intermedia, 449. 



Purbeckensis, 450. 

 Hemipristis, 510. 



serra, 510. 

 Hemipronites crassa, 341. 



crenistria, 303, 307,* 308. 



magnifica, 243. 



punctulifera, 240. 



radiata, 239* 240. 

 Hemipters, 450. 



Hemitrochiscus paradoxus, 372. 

 Hempstead beds, 513, 519. 

 Herbivores, 503, 506, 571, 593. 



range of, in time, 589.* 

 Hercynian gneiss, 151. 

 Herons, 466. § 

 Herring, 475. 



Herschel, theory of metamor- 

 phism proposed by, 730, 

 749. 

 Hesperornis, 466, 468. 

 Heterocercal fishes, range of, in 



time, 589* 

 Heterocrinus, 204. 

 Heteropods, 203, 249. 

 Heusser, analysis of doleryte, 



78. 

 Hexaprotodon, P20. 

 Hickory. 459, 497. 

 Hilgard, E. H r ., Cretaceous, 456. 



Mississippi Tertiary, 493, 494, 

 522. 



mud -lumps, 656. 



Quaternary, 553, 554. 

 Hils-conglomerat, 470. 

 Himalayas, 26. 



glaciers in , 675. 



in the Cretaceous, 480. 



snow-line in, 679. 



Tertiarv in, 512. 

 HimantHiuni arcu«, 634.* 



monodon, 634.* 

 Hinge-line, 170. 



Hipparion, 505* 508, § 511, 519. 



occidentale, 511. 



parvulum, 511. 

 Hippopotamus, 519, 520, 564, 

 576. 



major, 571. 

 Hippotherium, 520. 

 Hippurites, 460,§ 469. 



dilatatus, 472,* 475. 



organisans, 476 



Texanus, 467. 



Toucasianus, 472,* 475. 

 Hippurite limestone, 470. 

 Hirnant limestone, 206. 

 Histioderma Hibernicum, 180. 

 Histiophorus gracilis, 509. 

 Historical Geology, 7,§ 136. 

 History, nature of subdivisions 



in, 136. 

 Hitchcock, C. H., Champlain 

 period, 542. 



Helderberg, 256. 

 Hitchcock, E., Brandon lignite, 

 494. 



Carboniferous, 319. 



footprints, 411. 



terraces, 539. 



Triassic, 406. 

 Hitchcock, E., Jr., on Clath- 



ropteris, 433. 

 Hog, 503, 506, 507, 511, 517, 



568. 

 Hog family, 504. 

 Holaster, 474. 



carinatus, 476. 



cinctus. 466. 



simplex, 466, 468. 



subglobosus, 476. 

 Holectypus, 466. 

 Holly, 47i. 



Holocystis elegans, 475. 

 Holometopus Angelini, 250. 



limbatus, 250. 

 Holopea, 203, 240. 



concinna, 208. 



depressa, 274. 



dilucula, 188,* 189, 192. 

 Holopella, 429. 

 Holops brevispinis, 467. 



obscurus, 467. 

 Holoptychius, 263, 282, 286, 

 351. 



Americanus, 280* 281. 

 Holothurioids, 127, § 448. 

 Homacanthus, 304. 

 Homacodon vagans, 510. 

 Homalonotus, 174,§ 228, 240, 

 253, 285. 



armatus, 285. 



delphinocephalus, 227,* 229, 

 247, 248. 



Knightii, 247, 250. 



range of, in time, 388.* 



sulcatus, 208. 

 Ilomocamelus, 511. 

 Homo diluvii testis, 512. § 

 Homogeneous rocks, 64. § 

 Homotaxial strata, 101. § 

 Hooker, on coal-plants, 326 



329. 

 Hornblende, 54,§* 728, 737. 

 Hornblende rock, 237, 729. 



schist, 70. § 



series of rocks, 69, § 77. § 

 Hornblend.vte, 70.§ 

 Horn rock, 70. § 

 Hornstone. 53, § 255, 455. 



in Corniferous, with Proto- 

 phytes, 257. 



