INDEX. 



597 



Glacial climate, hypsometric 

 hypotheses of, iii. 424 



wandering pole hypothesis of, 

 iii. 43 l 

 Glacial debris, how carried, i, 290 



nature of, i, 286 



shifting position in transit, i, 

 292, 293, 294. 296, 297 

 Glacial deposits, nature of, i, 304 



of western mountains, iii, 467 

 Glacial erosion, conditions in- 

 fluencing, i, 283 



topographic effects of, i. 287 

 Glacial man, sources of evidence 



of. iii, 512 

 Glacial motion, i, 313-321 



auxiliary elements of , i, 317 



fundamental element of, i, 313 

 Glacial Period (Pleistocene), iii, 

 327 



Asia, iii, 424 



cause of, iii, 424 



duration of, iii, 413 



Europe, iii, 421 



glacio-lacustrine substage of, 

 i». 394 



mountain glaciation of, iii, 333 



stages of, iii, 383 

 Glacial planation, iii. 346 



plucking, i, 282 



striation, iii, 346 

 Glaciated areas, rate of migra- 

 tion of plants in, iii, 533 



reforestation of, iii, 530 



re-peopling of, iii, 530 

 Glaciated rock surfaces, i. 304 

 Glaciation (Pleistocene), centers 

 of, in North America, iii, 330 



changes in drainage effected 

 by, iii, 379 



criteria of, iii, 337 



effects of, on life, iii, 483 



general distribution of, iii, 327 



Greenland, iii, 336 



island, iii, 336 



localization, iii, 433 



mountain, iii, 333 



Newfoundland, iii, 336 



Nova Scotia, iii, 336 



periodicity of, iii, 433 



special causes of, iii, 436 

 Glacier ice, beginning of move- 

 ment, i, 248 



definition of, i, 250 



granular texture of, i, 247 



shearing of, i, 317 

 Glacier movement, i, 259, 313- 

 323 



at low temperature, i, 279 



effect of water on, i, 318 



rates, i, 260, 261 



views of, i, 321 

 Glaciers, alpine, i, 254 



cliff, i, 256 



compared with rivers, i, 262 



conditions influencing move- 

 ment, i, 261 



constitution, i, 308 



continental, i, 251 



crevasses, i, 264 



Glaciers, deformation, i, 312 



drainage of, i, 273i 280 



evaporation, i, 279 



foliation, i, 247, 272 



general phenomena, i, 256 



getting load, i, 282 



growth of, i, 308 



growth of granules, i, 310, 311 



high-latitude, i, 254 



limits of, i, 258 



motion in terminal part, i, 316 



movements of, i, 259, 279, 313- 

 323 



piedmont, i, 254 



polar, i, 254 



rate of movement of, i, 260, 

 261 



reconstructed, i, 256 



stratification of, i, 247 



structure of, i, 308 



surface features of, i, 266 



talus, iii, 474 



temperature of, i, 273-279 



thickening of layers at end, i, 

 297 



topography of, i, 266 



types of, i, 251 



upturning of ice at ends and 

 edges, i, 296-298 



valley, i, 254 



waste of, i, 273 



work of, i, 244, 281 

 Glacio-fluvial work, i, 305-308 

 Gladeville sandstone, ii, 559 

 Glance conglomerate, iii, 575 

 Glass, volcanic, i, 451 

 Glassy rocks, i, 406 

 Glauconia, iii, 134 

 Glauconite, i, 384, 386, 463 ; iii, 

 128, 198 



Cretaceous, iii, 139 



origin of, iii, 139 

 Gleeson, G. M., cited, iii, 497 

 Glenn, L. C, cited, iii, 17 

 Globigerina, iii, 189 



bulloides, iii, 241 



ooze, i, 380, 382, 660 

 Globulites, i, 407, 469 

 Glossopteris, ii, 603; iii, 40 



angustifolia, ii, 645 



commusis, ii, 645 



flora, ii, 602, 645, 646 

 Glycimeris, iii, 295 



idoneus, iii, 243 

 Glyphaea, iii, 91 



Glyptocrinus decadactylus, ii, 359 

 Glyptocystis multiporus, ii, 359 

 Glyptodon, iii, 322, 498 

 Gnathosauria, iii, 42 

 Gneiss, i, 415, 446. 448, 469 

 Golden Gate series, iii, 64, 69 

 Goldthwait, J. W., (and Hunt- 

 ingdon,) cited, iii, 313 

 Gomopteris, ii, 644 

 Gomphoceras, Onondagan, ii, 466 

 Gondwana system, ii, 634 

 Goniatites, ii, 465 



kentuckiensls, ii, 532 



Triassic, iii, 56 



vanuxemi, ii, 471, 473 



Goniobasis (?) ortmanni, iii, 134 

 Goniomya, iii, 91 

 Goniophyllum pyramidale, ii, 

 406, 409 



Silurian, ii, 407 

 Gooch, F. A., (and Whitfield, J. 



E.,) cited, i, 236 

 Goodnight beds, iii, 269, 300 

 Goshen schist, iii, 546 

 Gould, C. N., cited, ii, 543, 621; 



iii, 24, 118 

 Grad, C., cited, i, 322 

 Gradation, i 2 



by running water, i, 56-212 



effect on coast-lines, i 334 



in ocean, ,, 334 

 Gradation and submergence, ii, 



231 

 Grade, i, 61 



Graded plain, i, 82, 169 

 Graded valley, i, 83 

 Grainger shale, ii, 559; iii. 549 

 Grammatodon inornatus, iii, 93 

 Grammoceras, iii, 91 

 Grammysia hannibalensis, ii, 520 

 Granby tuff, iii, 546 

 Grand Canyon, section of strata 



in, iii, 574 

 Grand Canyon series, ii, 153 

 Grand 'Eury, C. cited, ii, 598 

 Grand Gulf formation, iii, 244, 



309 

 Grand Rapids series, ii, 504; iii 



553 

 Graneros shale, iii, 155, 206, 565, 



566 

 Granite, crushing strength of, ii. 



127 

 Granitell, i, 470 

 Granites, i, 413, 452, 469 

 Granitite, i, 470 

 Granitoids, i, 420, 453 

 Granulite, i, 470 

 Graphite, i, 426, 463 

 Graptolites, ii, 457 



Cambrian, ii, 286 



Helderbergian, ii, 457 



Ordovician, ii, 344, 362 



Silurian, ii, 408 

 Grasses, Cretaceous, iii, 173 



Eocene, iii, 231 



Miocene, iii, 283 

 Gravels, auriferous, of California, 

 iii, 265, 274, 299 



Buchanan, iii, 383 

 Gravitational energy, i, 552 



force, i, 552, 553 

 Gravity : a cause of crustal move- 

 ments, i, 552 



effect on erosion, i, 113 

 Gray, T., (and Milne, J.,) cited, i, 



578 

 Great Basin area, Devonian 

 fauna of, ii, 479 



Mississippian fauna of, ii, 527 

 Great Britain, Archean of, ii, 158 



Cambrian of, ii, 270, 271 



coal of, ii, 586 



Devonian of, ii, 443 



Eocene of, iii, 215 



