INDEX. 



785 



Hall, J., on Carboniferous un- 

 conformable with infe- 

 rior strata, 320. 

 Halloysite, 66.$ 

 Halonia, 356. 



pulchella, 335.* 

 Halysites, 211, 239* 253, 303. 

 catenulata, 238, 239,* 240, 



242, 243, 249, 261, 262. 

 gracilis, 220.* 

 last of, 253. 

 Hamilton beds, section of, on 

 Lake Erie, 281. 

 group, 280. 

 period, 280. 

 Hamites, 472.$ 



attenuatus, 485.* 

 Fremonti, 478. 

 Harmony of the Fauna and 

 Flora of an age, 302, 396, 

 501, 598. 

 Hastings Sand, 448. 

 Hawaian group, map of, 31.* 



group, origin of, 701. 

 Hawaii, erosion on, 637. 



map of part of, 688,* 



profile of, 687* 

 volcanic action on, 687,* 

 695,* 701. 

 Hayden, on fresh-water lakes 

 of the Upper Missouri 

 in the early Tertiary, 

 531. 

 on dip of strata in the 

 Rocky Mts. and Upper 

 Missouri region, 532. 

 See, further, Meek. 

 Hayesine, 86.$ 

 Headon Hill sands, 522. 

 Heat, sources of, 681. 



internal, of globe, 682. 

 depth, at any place of the 



plane of mean, 682. 

 agency of, in metamor- 

 phism, 707. 

 Heavy spar, 65.§ 

 Height about head-waters of 

 the Mississippi, 22. 

 mean, of Himalayas, 26. 

 of Cayambe, 22. 

 of Chimborazo, 22. 

 of Cotopaxi, 22. 

 of Hawaian mountains, 



688. 

 of L. Titicaca, 22. 

 of Pichincha, 22. 

 of some volcanoes, 685, 

 686, 687. 

 Heights of plateaus, 21, 22. 



of terraces, 550, 551. 

 Helderberg, Lower, 251. 



Lower, American species 

 of, occurring elsewhere, 

 261. 

 Upper, limestones, 269. 

 Upper, a coral-reef period, 

 272. 

 Helicoceras, 473. 

 Mortoni, 479. 

 Helicotoma planulata, 213.* 



uniangulata, 192* 

 Seliolites, 303. 



Heliolites spinipora, 240.* 

 porosa, 280. 

 pyriformis, 261. 

 Heliophyllum Halli, 284 * 

 Helix, 150.*$ 

 Helminths, 155.$ 

 Helvetian group, 523. 

 Hematite, 65,§ 83.$ 

 Hemiaster, Eocene, 517. 



Humphreysianus, 479. 

 Hemicidaris crenularis, 465. 



Purbeckensis, 465. 

 Hemipristis Serra, 521. 

 Hemipters, 420.$ 

 Hemitrochiscus paradoxus, 



375. 

 Hempstead beds, 523. 

 Herbivores, 422.$ 



range of, in time, 572. 

 marsupial, 424. 

 Herschel, theory of metamor- 

 phism, proposed by, 711. 

 Heterocercal fishes, 277. $ 



fishes, last of, 436. 

 Heterohyus, 529.$ 

 Heulandite, 62.§ 

 Hilgard, on Mississippi Ter- 

 tiary, 508, 509. 

 Hils-conglomerat, 480. 

 Himantidium Arcus, 631.* 

 Monodon, 631 * 

 zygodon, 631.* 

 Hipparion, 423.$ 



U. Missouri, 519, 522. 

 Hippopodium ponderosum, 



423. 

 Hippopotamus, 529, 559, 577. 

 Hippotherium, 529. 

 Hippurites, 472.$ 

 dilatatus, 484.* 

 organisans, 487. ■ 

 Texanus, 475. 

 Toucasianus, 484.* 

 Hippurite limestone, 480. 

 Historical Geology, 8.$ 

 History, nature of subdivi- 

 sions in, 125. 

 Hitchcock, E., on Upper Hel- 

 derberg in Mass., 270. 

 on footprints, 425. 

 on tufa in Triassic, 430. 

 on theBrandon lignite,510. 

 on the Drift, 537, 539, 540. 

 on terraces, 557. 

 Hitchcock, E., Jr., on Clath- 



ropteris, 420. 

 Hog family, Tertiary, 529. 

 Holaster simplex, 474, 478. 

 Holopea dilucula, 192. 

 Holoptychius, 280, 298* 

 Americanus, 293.* 

 Taylori, 293* 

 Holothuroids, 159.$ 

 Homseosaurus, 462. 

 Homalonotus armatus, 297. 

 delphinocephalus, 241,* 

 242, 261. 

 Homocercal fishes, 277 $ 

 Hopkins, on force of running 

 water, 635. 

 on directions of fractures, 

 726. 

 Hornblende, 59.$ 

 51 



Hornblende rock, 78.$ 

 Hornstone, 65.$ 



in Corniferous, containing 



Protophytes, 269. 

 origin of, 270, 271, 377. 

 Horse, 124.$ 



Horses, Post-tertiary, 562. 

 Hot springs, 700, 710. 

 Hubbard, 0. P., on pot-holes in 



New Hampshire, 679. 

 Hudson period, 217. 



period, note on, 750. 

 Kiver, in existence, 300. 

 River shales, 217. 

 River valley, submarine 



continuation of, 441. 

 slates, Calciferous in age, 

 174, 176, 750. 

 Humphreys and Abbot, on the 

 Mississippi River delta, 

 Ac, 634, 647, 662. 

 Hungary, Carboniferous in, 



352. 

 Hunt, E. R, on Carboniferous 

 temperature, 363. 

 on formation of the Flo- 

 rida reefs, 755. 

 on rate of growth of 

 corals, 754. 

 Hunt, T. S., analyses of shell 

 of recent Lingula, 68. 

 analyses of actinolite 



rock, 78. 

 analyses of petrosilex and 



euphotides, 80. 

 analyses of schillerite and 



ophiolite, 82. 

 analysis of chert, 83. 

 analysis of an Orthocerae, 



84. 

 analysis of glauconite,470. 

 on thickness of Calcife- 

 rous, 176. 

 Huron group, 381. 

 Huronia vertebralis, 224. 

 Huronian, 142, 385. 

 Huxley, on Rhizopods of N. 



Atlantic, 612. 

 Hyaena, 529.$ 

 crocuta, 560. 

 spelae, or Cave Hyaena, 

 559, 581, 583. 

 Hyaenarctos, 529.$ 

 Hyamodon, 529.$ 



U. Missouri, 519. 

 Hybodus minor, 277* 436. 

 Mougeoti, 438. 

 plicatilis, 277,* 436. 

 Hybodonts, 278* 



culmination of, 497. 

 range of, in time, 402, 572. 

 Hydra, 162.$* 

 Hydraulic limestone, 84.S 

 Hydroids, 162.$* 

 Hylseosaur, 346,$ 452. 

 Hylonomus, 352.$ 

 Hymenocaris vermicauda, 



194* 

 Hymenophyllites, 338, 339, 

 355. 

 furcatus, 342. 

 Hildrethi, 340,* 342. 

 spinosus, 342. 



