IXDEX. 



599 



Heilprin, A., cited, 1,636; Hi, 242 

 Heim, A., cited, i, 256, 322, 549, 



576 

 Helderbergian brachiopods, ii, 

 454 



cephalopods, ii, 454 



corals, ii, 456, 457 



crinoids, ii, 456 



cystids, ii, 456 



fauna, ii, 450, 453, 455 



fishes, ii, 457 



formation, ii, 370, 391, 420 



gastropods, ii, 454 



graptolites, ii, 457 



pelecypods, ii, 454 



trilobites, ii, 456 

 Helicoceras stevensoni, iii, 189 

 Helicotoma planulata, ii, 353 

 Heliolites interstinctus, ii, 409 

 Helladotherium, iii, 323 

 Helvetian epoch, iii, 421 

 Hematite, i, 425, 447, 463 

 Hemiaster, iii, 189 



da Hi, iii, 135 

 Hemimactra, iii, 292 

 Hemipristis serra, iii, 204 

 Hemipters, Jurassic, iii, 105 

 Hemlock formation, ii, 180 

 Henrietta formation, ii, 561 

 Henrys Fork formation, iii, 313 

 Herbertella sinuata, ii, 356 

 Herbivora, iii, 229 



Pliocene, iii, 322, 323 

 Hercynian fauna, ii, 450 

 Hermitage formation, iii, 552 

 Hermosa formation, iii, 572 

 Herrick, C. L., cited, ii, 623 

 Hershey, O. H., cited, iii, 124, 

 201, 212, 310, 311, 314, 

 317.412 

 Hesperornis, iii, 183 



regalis, iii, 182 

 Hesse sandstone, iii, 550 

 Heterangium, ii, 595 

 Hexacoralla, iii, 57, 83 

 High-latitude glaciers, i, 254 

 High-level Columbia, iii, 447, 449 

 Hilgard, E. W., cited, iii, 141, 



302, 303, 308, 411 

 Hill, R. T., cited, 11, 435; iii, 24, 

 59, 60, 107, 115, 116, 118, 

 142, 143, 163, 220, 244, 

 258, 273, 302, 309, 479; 

 (and Vaughan), iii, 142, 143, 

 300 

 Hills, R. C, cited, iii, 154, 155, 



206, 207, 209 

 Himalayas, snow-line in, i, 246 

 Hinde, G. J., cited, ii, 287 

 Hindia, ii, 408 

 Hinton formation, ii, 559 

 Hipparion, iii, 286 

 Hipparionyx proximus, ii, 458 

 Hippopotamuses, Pliocene, iii, 



323 

 Hippurite limestone, iii, 169 

 Historical geology, i, 1 

 Hitchcock, C. H., cited, iii, 361, 



367, 37o 

 Hoang-Ho delta, i, 202, 203 



Hobbs, W, H., cited, iii, 9, n, 



14. 15, 23 

 Hog back, Dakota, iii, 146 

 Hog-backs, i, 142 

 Hogbb'm, A. G., cited, iii, 445 

 Holaster simplex, iii, 135 

 Holden, E. S., cited, i, 538 

 Holdenville shale, iii, 562 

 Hole, A. D., cited, iii, 334 

 Holland, W. J., cited, iii, 88 

 Hollick, A., cited, iii, 59, 114 

 Holmes, W. H., cited, i, 99; iii, 



504-507 

 Holmia broggeri, ii, 296 



fauna, ii, 245 

 Holocrystalline rock, i, 412 

 Holocystites adiapatus, ii, 403 

 Holograptus richardsoni, ii, 362 

 Holopea sweeti, ii, 299, 300 

 Holoptychius, ii, 488 



flemingi, ii, 488 

 Holosiderites, i, 5 

 Hoist, N. O., cited, iii, 370 

 Holyoke range, origin of, iii, 19 

 Homalonotus delphinocephalus, 



ii, 409 

 Homacodon, iii, 236 

 Hominidas, iii, 289 

 Homo diluvii testis, iii, 290 

 Homomya austinensis, iii, 135 

 Honeycomb coral, Silurian, ii, 407 

 Hook (along shore), 1, 363 

 Hoosic schist, iii, 546 

 Hopkins, T. C, cited, ii, 324, 



424, 562; iii, 560 

 Hopkins, W., cited, i, 322 

 Hoplites, iii, 134 



angulatus, iii, 136 

 Hoplophoneus, iii, 253 

 Horizontal configuration of 



coasts, due to deposition, i, 



363, 364 

 due to wave erosion, i, 353 

 Hormotoma gracilis, ii, 353 

 Hornblende, i, 400, 463 

 Hornblende-granite, i, 415 

 Hornblendite, i, 417, 452, 470 

 Hornstone, i, 470 

 " Horseback," ii, 575 

 Horses, Eocene, iii, 235 

 evolution of, iii, 286, 288 

 Pleistocene, iii, 498 

 Pliocene, iii, 322 

 Horsetails, ii, 596 (see also 



Equisetae ) 

 Horsetown series, iii, 122, 160 

 Horsts, ii, 129, 131 

 Hoskins, L. M., cited, i, 219, 



552, 581; (and Van Hise), 



ii, 258 

 Hot springs, deposits of, i, 225 

 along faults in Lake Lahontan, 



iii, 465 

 Howchin, W., ii, 273 

 Howe, E., (and Cross,) iii, 572 

 Howell, Capt., cited, i, 171 

 Hudson River formation, iii, 557 

 Hudson river, material in solu- 

 tion in, i, 108 

 Hugi, F. J., cited, i, 321 



Hull, E., cited, i, 636; iii, 522 

 Human dispersal, iii, 533 

 Human period, iii, 517 



life of, iii, 530 

 Human provincialism and cos- 

 mopolitanism, iii, 540 

 Human relics bunal of, iii, 510 



Pleistocene, iii, 502 

 Humboldt ranges, iii, 69 

 Hume, W. F., cited, iii, 279; 



(and Barron,) iii, 320 

 Humphreys, A. A., (and Abbot, 



M. L.,) cited, i, 106, 202 

 Hunt, T. S., cited, ii, 157 

 Huntington, E., cited, iii, 424; 



(andGoldthwait), iii. 313 

 Hunton limestone, iii, 563 

 Huronian, ii. 175 



close of, ii, 177 



Crystal Falls region, ii, 180 



deformation at close of, ii, 

 177 



erosion of, ii, 181 



Marquette region, ii, 179 



Mesabi district, ii, 180 



north of Lake Huron, ii, 181 



Penokee-Gogebic region, ii, 

 180 



sections of, ii, 179 



thickness of, ii, 176 



Vermilion region, ii, 180 

 Hustedia mormoni, ii, 616, 617 

 Hutton, F. W., cited, ii, 159 

 Huxley, T. H., cited, i, 322; ii, 



538 

 Hyalite, i, 463 



Hyatt, A., cited, iii, 61, 91, 92 

 Hybocrinus tumidus, ii, 359 

 Hydration, i, 43, 222 



disruption of rock by, i, in 

 Hydreionocrinus acanthoporus, 



ii, 616 

 Hydro-atmospheric stage of 



earth's history, ii, 118 

 Hydrophytes, geologic contri- 

 butions of, i, 667 

 Hydrosphere, i, 7 (see also 

 Ground-water and Ocean) 



geologic activity of, i, 8 



horizons of activity, i, 9 

 Hydrospheric stage, initiation of, 



ii, 106 

 Hydrozoa, Cambrian, ii, 286 

 Hyena family, iii, 289 

 Hylobates leuciscus, iii, 326 

 Hymenocaris vermicauda, 11, 283 

 Hymenopters, Jurassic, iii, 105 

 Hyolithes ii, 299, 300 



americanus, 11, 284 

 Hyopotamus, iii, 253 

 Hypersthene, i, 400, 463 

 Hypertragulus, iii, 253 

 Hypisodus, iii, 253 

 Hypogene rocks, i, 470 

 Hypopnous, ii, 650 

 Hypotheses of earth's origin, ii, 3 



gaseous, ii, 3 



Laplacian, or Nebular, ii, 4 



meteoritic, ii, 3. 13 



planetesimal, ii, 3 



