596 



INDEX. 



France, Archean of, ii, 159 

 Cretaceous, Upper, of, 111, 169 

 Devonian of, ii, 442 

 Eocene of. iii, 215, 217 

 Jurassic of, iii, 71, 76 

 Miocene of, iii, 277 

 Mississippian of, ii, 515 

 Oligocene of, in, 249, 25? 

 Pennsylvanian of. ii, 585 

 Permian of, ii. 626 627 

 Pliocene of, iii, 318. 319 

 Proterozoic of, ii, 215 

 Franciscan series, iii, 577 

 Frank, A. B., cited, i, 642 

 Freeh, F., cited, ii, 271 

 Fredericksburg ser.es, iii, 116 

 Free-molecular nebulae, ii, 41 

 Freestone, i, 469 

 French Broad river, i, 168 

 Fresh-water fauna, Coman- 



chean, iii, 134 

 Fresh-water life, Permian, ii, 652 

 Fresh-water mollusks. Devonian, 



ii, 490 

 Fresh-water plants, Devonian, ii, 



490 

 Frontal aprons, iii, 372 

 Fulgur spiniger, iii, 294 

 Fulgurites, i, 52, 469 

 Fuller, M. L., cited, ii, 433, 509, 

 557; iii, 412; (and Clapp), 

 iii, 212 

 Fundamental gneiss, ii, 142 

 Fungi, geologic contribution of, 



i, 653 

 Fusion, selective, ii, 102 

 Fuson formation, iii, 566 

 Fusulina cylindrica, ii, 618 

 secalius, ii, 616 

 limestone, ii, 587, 618 

 Fusus, iii, 294 



interstriatus, iii, 243 

 texanus, iii, 135 



Gabb, Wm. M., cited, iii, 309; 



(and Whitney), iii, 122 

 Gabbroids, i, 453 

 Gabbros, i, 416, 452, 469 

 Galena-Trenton limestone, ii, 



3i3» 320; iii, 557, 559 

 Galenite, i, 441 

 Galeocerdo, iii, 294 

 Gallatin limestone, ii, 153; iii » 



70, 166, 569 

 Gangamopteris cyclopteroides, ii, 



645 

 Ganges River, delta of, i, 203 

 Gangue, i, 469 

 Gannister, i, 469 

 Ganodonta, iii, 229, 238 

 Ganoids, Devonian, ii, 461 

 Garnet, i, 462 

 Garnetite, i, 469 

 Garrev, G. A., cited, iii, 34°; 



(and Blackwelder), iii, 334 

 Gas and oil of the Devonian, ii, 



440 

 Gaseous center of earth, ii, 9 

 Gaseous emanations during 



earthquakes, i, 533 



Gaseous emanations from vol- 

 canoes, i, 617 

 Gaseous spheroids, formation of, 



n,5 

 Gases in igneous rocks, i, 619; 

 ii. 95 

 in meteorites, ii, 95 

 Gases volcanic, i, 617-623 

 amount of, 1, 620 

 kinds of, i, 618, 619 

 proportions of, i, 620, 622 

 sources of, i, 621 

 Gastropods, Cambrian, ii, 297 

 Carboniferous, ii, 615, 616 

 Chemung, ii, 478 

 Comanchean, in, 134, 135, 136 

 Cretaceous, iii, 187, 190 

 Devonian, ii, 473, 477 

 Early Jurassic, iii, 91 

 Eocene, iii, 243 

 Genevieve, ii, 532, 533 

 geologic contributions of, i, 



662 

 Helderbergian, ii, 454 

 Jurassic, iii, 83 

 Kinderhook, ii, 520, 521 

 Middle Jurassic, iii, 91 

 Miocene, iii, 293, 294 

 Mississippian, ii, 523 

 Onondagan, ii, 466 

 Ordovician, ii, 353, 354 

 Permian, ii, 653 

 Silurian, ii, 403, 406 

 Triassic, iii, 56 

 Upper Cambrian, ii, 290. 300 

 Upper Jurassic, iii, 91 

 Gaudry, A., cited, iii, 324 

 Gault series, iii, 128 

 Gavials, Cretaceous, iii, 179 

 Gay Head, Pliocene of, iii, 308 

 Geanticline, i, 505 

 Geest, i, 469 



Geikie, A., cited, i,203, 224. 344, 

 534. 536, 636; ii, 158, 215, 

 269, 339, 340, 445. 447. 448, 

 514,515,517,566.585-588, 

 589,626,632; iii, 72, 73, 76, 

 78 s 170, 227, 277, 278, 281 

 Geikie, J., cited, iii, 35, 79, 217, 

 218, 328, 384, 421,422,423, 

 499, 5i6 

 Genesee formation, ii, 432 

 Genevieve blastoids, ii, 532 

 brachiopods, ii, 531, 532 

 bryozoa, ii, 531, 532 

 cephalopods, ii, 532, 533 

 corals, ii, 530 

 crinoids, ii, 530, 532 

 fauna, ii, 529 

 gastropods, ii, 532, 533 

 mollusks, ii, 533 

 pelecypods, ii, 532, 533 

 productus, 11, 531 

 protozoa, ii, 531, 532 

 Geodes, 1, 436, 497 

 Geognosy, i, 1,5, 393-485 

 Geographic changes during Mid- 

 dle Devonian, ii, 430 

 features of the Permian glacial 

 stage, ii, 675 



Geologic effects of earthquakes, 



i.534 

 Geologic functions of life, i, 638 

 Geologic processes, man's in- 

 fluence on, 1, 649; iii, 541 

 Geologic time divisions, table of, 



i, 19; ii, 160 

 Geology, general subdivisions of, 

 i, 1 

 prognostic, iii, 542 

 George, R. D., cited, i, 545 

 Georgia, section of strata in iii, 



55i 

 Georgian series, ii, 219, 241 

 Geosaurus suevicus, iii, 90 

 Geosyncline. i, 505 

 Geo'ectonic geology, i, 1, 486 



525 

 Gerber, E., cited, i, 195 

 Genng beds, iii, 269, 564 

 Gerland, cited, i, 538 

 Germany, Archean of, ii, 159 

 Cretaceous, Lower, iron ore of, 



iii, 128 

 Devonian of, ii, 442 

 Jurassic of, iii, 72 

 Miocene of, iii, 276 

 Mississippian of, ii, 513 

 Oligocene of, iii, 248 

 Pennsylvanian of, ii, 585 

 Permian of. ii, 626-630 

 Pleistocene of, iii, 424 

 Proterozoic of, ii, 215 

 Triassic of, iii, 31 

 Triassic coal beds of, iii, 40 

 Gervillia, iii, 91 

 Geschiebewall, i, 300; iii. 367 

 Geyserite, i, 463, 469 

 Geysers, i, 236 

 deposits of, i, 237 

 of Yellowstone Park, i, 239 

 period of eruption, i, 240 

 positions of, i, 241 

 Gibbon, iii, 326 

 Gibbula, iii, 295 



Gilbert, G. K., cited, i, 11, tio. 

 140. 194, 198, 203, 333, 355. 

 388, 489, 596; ii, 382; iii. 

 26, 59, 194, 242, 415, 418, 

 419, 455, 456, 458, 460, 461, 

 479, 482, 483, 516; (and 

 Putnam), ii, 236 

 Ginkgkodium, iii, 95 

 Ginkgos, Carboniferous, ii, 601 

 Cretaceous, iii, 173 

 Devonian, ii, 493 

 Triassic, iii, 40 

 Giraffes, Pliocene, iii, 323 

 Girty, G. H., cited, ii, 510, 553, 



563, 623 

 Glacial beds, Cambrian, ii, 272 

 Carboniferous of Europe (?) 



ii, 587 

 Permian ii, 632 

 Glacial climate, astronomic hy- 

 potheses of, iii, 426, 431 

 atmospheric hypotheses of, iii, 



432 

 Croll's hypothesis of, iii, 426 

 elevation hypothesis of, iii, 424 



