560 



INDEX 



Glacial, deposits, 153; drift, 311, 527; 

 epoch, 525 ; causes of, 537 ; effects on 

 topography, 534 ; lakes, 311; Permian, 

 438 ; series, 529 ; stages, 526 ; striae, 

 in*, 112; valleys, 310. 



Glaciers, 104; denudation by, 310; ero- 

 sion, no; flow of, 107; formation of, 

 105; transportation by, 113; troughs, 

 112; varieties of, no. 



Glass, volcanic, 46. 



Glassy texture, i89f, 196. 



Glauconite, 22f, 214. 



Glauconitic Beds, 475. 



Globigerina, 176, 487 ; ooze, 176. 



Glossopteris, 437 ; flora, 437. 



Glyptodon, 538. 



Glyptostrobus, 504*. 



Gneiss, 296; Archaean, 358. 



Gold, 266; deposition, 130. 



Gomphoceras, 401*, 402. 



Gondwana series, 437!, 448, 461. 



Goniatites, 401*, 403, 419*, 426, 434. 



Goodnight stage, 496, 5i8f. 



Gordon, C H., 296. 



Granatocrinus, 422. 



Grand Canon of the Colorado, 100. 



Granite, I98f, 284, 296 ; Archaean, 358 ; 

 binary, 198 ; conglomerate, 207 ; dis- 

 integration of, 74 ; exfoliation of, 84* ; 

 family, 196 ; gneissoid, 358 ; joints of, 

 263 ; porphyry, 198 ; soda-, 198. 



Granitic gneiss, 296. 



Granitite, 198. 



Granitoid texture, i9of, 196. 



Graphite, 295f, 298; schist, 298. 



Graptolites, Cambrian, 371 ; Devonian, 

 400; Ordovician, 379; Silurian, 389. 



Graptolithes, 392*. 



Grass, protection of rocks by, 122. 



Grasses, Eocene, 502; Miocene, 515. 



Grasshoppers, fossil, 465. 



Gravel, 207 ; river, 139. 



Gravity fault, 244*, 245*, 246^ 



Great Basin, 309; land, 440. 



Great Britain, Algonkian of, 363. 



Great Dismal Swamp, 133, 134*, 414. 



Great Lakes, origin of, 534. 



Great Plains, glaciation of, 527. 



Great sea wave, 62. 



Greece, earthquake of 1870, 63. 



Green mud, 175. 



Green River, 325. 



Green River Shales, 505 ; substage, 496. 



Greensand, I75f, 214. 



Greenland, Carboniferous of, 417 ; de- 

 pression of, 67 ; Devonian of, 399 ; 

 Eocene flora of, 502 ; ice-sheet of, 108. 



Greenstone, 200. 



Greywacke, 293!, 368 ; slate, 294. 



Grlffithides, 424. 



Ground ice, 115. 



Group (of strata), 354. 



Gryphcea, 463* 465, 488. 



Guano, 130. 



Guard (of Belemnite) , 467. 



Gulls, fossil, 503, 516. 



Gymnospermae, 400; Palaeozoic, 367; 

 Permian, 432. 



Gypsum, 23I", 209, 429; deposition of, 



151- 



Gyroceras, 434. 



Hade (of fault) , 243. 



Hadiosaurus, 491. 



Haematite, 24; brown, 24. 



Hairy elephant, 538 ; rhinoceros, 538. 



Hale-mau-mau, 40*, 42*. 



Halobia, 451. 



Halysites, 389. 



Hamilton epoch, 355 ; series, 394, 396! ; 



stage, 394. 

 Hanging wall, 243. 

 Hardness of minerals, 13. 

 Harpoceras, 467. 

 Heave of fault, 244. 

 Heavy spar, 266. 

 Heligoland, destruction of, 117. 

 Heliolites, 389. 

 Heliophyllum, 400, 401*. 

 Helix, 504*. 



Hell Gate, tidal race, 119. 

 Hemiaspis, 391. 

 Henry Mountains, 284, 338. 

 Heptodon, 505. 

 Herculaneum, 38, 51. 

 Herring, fossil, 490. 

 Hesperornis, 492. 

 Hexacoralla, 441, 450, 463. 

 Hexagonal system of crystals, 10. 

 Hickories, fossil, 515. 

 Highlands of the Hudson, 333 ; of New 



Jersey, 333. 



