696 



INDEX 



Grasses, beginning of, 546 

 Great Basin fauna, 436 

 Great Salt Lake, 204, 657 

 Great sea-wave, 209 

 Greenland ice sheet, 125, 615 

 Green mud, 198 

 Greensand marl, 53 2 

 Greenstone, 261 

 Ground moraine, 159, 627 

 Ground water, 30-55 



amount of, 33 



depth of, 32 



fact of, 30 



fate of, 34 



movement of, 33 



surface, 31 



work of, 35, 38, 45 

 Gryphaea arcuata, 510 

 Guelph dolomite, 388 

 Gulf of Suez, 608 

 Gullies, 58 



growth of, 60 

 Gulliver, F. P., cited, 182 

 Gymnosperms, 458 

 Gypidula galeata, 414 

 Gypsum, 195, 257, 268 



Hadrosaurus mirabilis, 548 

 Halysites catenulatus, 398 

 Hamilton fauna, 418, 419 

 Hamilton formation, 402, 404, 407 

 Hanging valleys , 151, 152 

 Harris, G. D., cited, 581 

 Hartnagle, C. A., cited, 368, 389 

 Hatcher, J. B., cited, 578, 590 

 Hawaii, volcanoes of, 234 

 Haworth, E., cited, 586 

 Hay, O. P., cited, 679 

 Hayes, C. W., cited, 374, 583 

 Head erosion, 60 

 Hevertella sinuata, 382 

 Hematite, 255 

 Helderberg fauna, 413, 414 

 Helderbergian series, 402, 403 

 Helicoceras stephensoni, 554 

 Helicotoma planulata, 381 

 Heilprin, A., cited, 245 

 Hemiaster dalli, 530 

 Hemipters, 467 

 Herbivores, Pliocene, 610 

 Hercynian fauna, 413 

 Hershey, O. H., cited, 604 

 Hesperornis, 551, 552 

 High-latitude glaciers, 127 

 Hilgard, E. W., cited, 600 



Hill, Arthur, cited, 112 

 Hill, R. T. cited, 564, 574 

 Hipparion, 592 

 Hipparionyx proximus, 415 

 Hippurite limestone, 544 

 Howe, E., cited, 489 

 Hobbs, W. H., cited, 206 

 Hogbacks, 93, 536 

 Holaster simplex, 530 

 Holmes, W. H., cited, 671 

 Holmia broggeri, 359 

 Holocystites adiapatus, 395 

 Holograptus richardsoni, 385 

 Homo diluvii testis, 596 

 Homomya austinensis, 530 

 Hoplites angulatus, 531 

 Hormotoma gracilis, 381 

 Hornblendite, 260, 262 

 Horse, evolution of, 592, 593, 610 

 Horsetown series, 525 

 Howchin, W., cited, 357 

 Hudson River shale, 369 

 Hudson Valley, 171 

 Huntington, E., cited, 606 

 Human period, 677 

 Huronian iron ore, 332 

 Huronian systems of rocks, 331, 334 

 Hustedia mormoni, 469 

 Hybocrinus tumidus, 384 

 Hydration, 23, 264 

 Hydrosphere, 4 



beginning of, 311 

 Hyolithes americanus, 361 

 Hypsipleura gregaria, 531 

 Hyracotherium venticolum, 569 



Ice in soil, 121 

 Ice on lakes, 121 



on rivers, 122 



on sea, 124 

 Icebergs, 166 

 Ice-cap of Greenland, 125 

 Ice ramparts, 122 

 Ice sheets, development of, 624 



slope of, 625 



succession of, 632 



thickness of, 624 



work of, 626 



Ice sheets of North America, 613, 614' 

 Ichthyornis, 551 

 Ichthyornis victor, 552 

 Ichthyosaurs, 501 



Cretaceous, 550 



Jurassic, 513 

 Ichthyosaurus quadriscissus, 513 



