INDEX. 



885 



Freeport coals, 311. 

 Freestone, 4U4. 

 Freezing, effects of, 687. 

 Fremv, analysis of lobster- 

 shell, 60.' 



analysis of fish-scales, 61. 

 Frenela, 515. 

 Frerichs, analysis of human 



bones. 80. 

 Fresb-water action, 535. 

 Friable rocks, 68. § 

 Frigid Zone, 41. § 

 Fringing reefs, 622. §* 

 Fritsch, life of Archaean, 159. 

 Frog, 121 ,§ 592,599. 

 Frondicularia annularis, 131.* 

 Fruits, Carboniferous, 325,* 

 326, 32S,* 329, 330. 



Tertiary, 497,* 498. 

 Fuci, 135. § 



Fucoidal sandstone, 163. 

 Fucoids, 135, § 169, 176, 177, 

 198,* 223,* 242, 235,* 257, 

 296. 

 Fucoides Cauda- galli. See 

 Spirophtton. 



duplex, ITS. 

 Fucus, content of phosphoric 



acid, 61. 

 Fuller s-earth group, 435. 

 Fumarolcs, 737. 

 Fungi, 133,§ 321, 331, 365, 386, 



608. 

 Funsria, 621. § 

 Fusulina, 131* 307, 332. 



cylindrica, 131,* 308, 332* 

 341, 350. 



gracilis, 341. 



robusta, 308, 341, 350. 

 Fusus, 508, 611. 



antiquus, 519. 



contrarius, 533. 



Labradorensis, 553. 



Newberryi, 477.* 



tornatus", 553. 



Gabb, W. M., California Creta- 

 ceous. 457, 45S. 



California Tertiary, 508, 510. 



San Domingo Tertiary, 524. 

 Gabbro, 74,§ 78.§ 

 Gadus, 508. 

 Galap-i^os Islands, 485. 



tempevanu-e of, 41, § 42. 

 Galastes, 448. 

 Gala then. 350. 

 Galena, 59.§ 

 Galena limestone, 163, 196, 197, 



377 37^ 

 Galenite, 59,§ 197. 

 Galeocerdo, 510. 



lati lens, 509, 510, 519. 

 Galerites. 4i4. 



albogaleru", 476. 



conicus, 476. 

 Galerus, 508. 

 Gait limestone, 221. 

 Gamp^onvx fimbriatus, 350.* 

 Gancres, 637, 656. 

 Gangue, 113,§ 771. 

 Gannet. 508. 

 Ganoecpbala, 338.$ 

 Ganoids, 262,§* 3*01, 336, 343, 

 340,371,411,427,441,450, 

 462, 475, 484, 502. 516, 592, 

 597. 



a comprehensive type, 382, ' 

 597. 



range of, in time, 388,* 589.* | 



Ganoid teeth, structure of, 



264* 

 Gardeau Shales, 276. 

 Gardiner's River Springs, 707. 

 Garnet, 57,§* 74, 757, 763. 

 Garnet-euphotide, 71. § 

 Garnet-felsyte, 71. § 

 Garnetiferous rocks, 64. § 

 Gars, 278,§ 510, 592, 594, 595. 

 Gas-wells, -266. 

 Qaspe, Hamilton, at, 267. 



limestone, 216, 221, 255, 256, 



Lower Helderberg at, 238. 



Niagara at, 221. 



Oriskany at, 256. 

 Gasteropods, 125,§ 189, 253,§ 

 342, 472, 482, 608. 



culmination of, 583, 598. 



dental apparatus of, 208, 

 257.* 



number of Silurian, 249. 



range of, in time, 387.* 

 Gastornis Parisiensis, 519. 

 Gastridium vetustum, 509. 

 Gastrochsena, 608. 

 Gault, 470. 

 Gavialis Dixoni, 519. 



minor, 509. 

 Gay Head, Tertiary at, 495. 

 Gay-lussite, 630. 

 Geanticlinal, 811, 818, 823. 

 Geinitz, on Permian, 371, 373. 

 Gemellaria loricata, 127.* 

 Genera commencing in the 



Cretaceous, 483. 

 Genera commencing in the 

 Jurassic, 482. 



modern, in Silurian, 253. 

 Genesee epoch, 254, 266. 



Falls, section at, 79,* 219.* 



shale, 257, 266. 

 Genesis, cosmogony of, 845. 

 Geodes,'222.§ 



Geographical distribution of 

 life, principles in, 609. 



of oceanic species, as il- 

 lustrated by the Physio- 

 graphic Chart, 43. 

 Geography as a science, 2. 



Carboniferous, 354. 



Catskill, 281. 



Cenozoic, 586. 



Champlain, 551, 555. 



Chemung, 279. 



Cornifcrous, 265. 



Cretaceous, 478. 



Devonian, 286. 



Glacial, 539. 



Hamilton, 275. 



Jurassic, 450. 



Lower Helderberg, 240. 



Mesozoic, 481. 



Niagara, 230. 



Oriskanv, 243. 



Paleozoic, 389. 



Permian, 368. 



Primordial, 180. 



Quaternary, 586. 



Recent, 560. 



Salina, 235. 



Subcarboniferous, 304. 



Tertiary, 520,* 586. 



Trenton. 208. 



Triassic, 422. 



Upper Silurian, 250. 

 Geological map of United 



States, 144. 

 Geological record imperfect, 

 600.§ I 



Geology, methods of reasoning 

 in,4.§ 



does not explain Creation, 

 831. 



objects of, 2,§ 4. 



subdivisions of, 7.§ 

 Georgia, Archaean in, 150. 



Cretaceous in, 455. 



glaciers, 537. 

 Georgia, in Cretaceous, 479. 



Tertiarv in, 491. 

 Georgia (Vt.) shales, 163, 166. 

 Geos'ynclinal, 811, 817, 819, 



8z0. 

 Geoteuthis Bollensis, 449. 

 Germany, Carboniferous in, 

 344, 346. 



Cretaceous in, 469. 



Devonian in, 282. 



Jurassic in, 433. 



Permian in, 369. 



Quaternary in, 532. 



Subcarboniferous in, 307 



Triassic in, 424. 

 Geryon, 611. 

 Gervillia, 475. 



anceps, 475. 



crassa, 448. 



ensiformis, 456. 



inflata, 429. 



longa, 342. 



socialis, 426,* 428, 429. 

 Gesner, A., on modern changes 



of level, 583. 

 Geyserite, 71. § 

 Geysers, 749, 750, § 753. 



action of, 752. 



siliceous deposits from, 612, 

 750. 

 Geyser-basins of Yellowstone 



National Park. 611, 750. 

 Giants' Causeway, 107, 740. 

 Gibraltar, currents at, 670. 

 Gieseckite, 156 § 

 Gilbert, G. K., on Lake Erie 

 outlet, 540. 



Rocky Mountains, 296. 



Henry Mountains, 824, 835, 

 840. 

 Gill, T., on Reptiles, 337. 

 Glabella, 123, § 174. §* 

 Glacial Period, 527, 571, 



supposed, in the Permian, 

 370. 



era, second, 556, 661, 574. 



abrasion, 530, 538, 699. 



theory of the Drift, 535. 

 Glacier of Switzerland, reach- 

 ing to the Juras, 533. 



of Zermatt^ 689.* 



regions, 688. 

 Glaciers, characters, origin, 

 and effects of, 688.* 



conditions favoring increase 

 of, 692. 



increase of, in the Quater- 

 nary, 540. 



motion of, 536. 



Quaternary in America. 537 

 Glaphyroptcra, 428. 

 Glaris", fishes at, 529. 

 Glass state, 722. 



volcanic, 727. § 

 Glauber salt, 630. 

 Glauconie grossiere, 512. 

 Glauconite, 58,§ 458. § 



See Green-Sand. 

 Gleditschia, 515. 

 Glen Roy, benches of, 555. § 



