Geneva, or Leman Lake, 320; lateral 

 mirage on the, 543 ; alluvium of, 776. 



Gensanne, M., 501. 



Genus, definition of the word, 598. 



Geography, science of, its origin, 193 ; 

 definition of the word, 195; and of 

 the subordinate terms of, 197. 



Geological Society of London, its 

 labours, 620. 



Geology, what it is, 611 ; its origin as 

 a science, 611 ; obstacles it had to 

 encounter, 612; its study exal;s 

 humanity and glorifies the Creator, 

 614, 786, 787 ; the ancients had some 

 glimpses of the truths of, 615 ; era of 

 modern, 617 ; Werner's theory of, 

 617, 618 ; Dr Button's, 618 ; William 

 Smith's labours in, 619 ; use of, in 

 the arts, 620 ; tells the early history 

 of the globe, 620. 



Geophagists, or earth-eaters, 597. 



Gerard, Captain A., his description of 

 the Darial Pass, 219. 



Gerdau, lake, floating islands in, 319. 



German Ocean, tides of the, their 

 operation on the British coasts, 372 ; 

 sands of the, 772. 



Germany, surface of, 236; New Red 

 Sandstone system of, 70S, 713 ; oolitic 

 fossils of, 721. 



Germination of plants, after long 

 immersions in the ocean, 566. 



Geysers of Iceland, description and 

 view of the, 271273, 778. 



Giants' Causeway, the. 626 ; notices of 

 the, 653, 731. 



Gibraltar, Straits of, 329, 337 ; view of, 

 366 ; Dutch ship sunk in the, 366. 



Giggleswick spring, Yorkshire, 268. 



Gilpin, Mr, 768. 



Giraffe, the, 587, 590, 594. 



Glaciers, their nature and movements, 

 207, 341 ; their disastrous action, 

 412415. 



Glairine, a fossil animal substance, 

 277. 



Glamour of the Highlanders, 535. 



Glance at the stars, 143 158. 



Glen Roy, 778. 



Glen Tilt, geological character of, 

 illustrated, 632, 659, 663. 



Glencroe, 659. 



Globe, area of the, 195 ; presents the 

 two grand natural divisions of land 

 and water, 195; tides at various 

 points of the, 355357 ; denudation 

 of its lands by river action, 370 373 ; 

 geological reasoning respecting the, 

 425 ; changes in the, 434 ; botanical 

 regions of the, 560 564; crust of 

 the, 611, et stq.; fossils in the strata 

 of the, 635, et seq. 



Glogau, a powder-magazine saved from 

 explosion at, 521. 



Ginelin, M., 528, 602, 603. 



Gneiss system, 638, 057 C59. 



Goat, the, 588, 606. 



Goatfell in Arran, 655. 



Gold ore, where found, 634. 



Goldau, vale of, 409. 



Good, Dr Mason, 169. 



Goodwin Sands, the, when and how 

 formed, 387. 



Gorbitz, valley of, ignis-fatuus in the, 

 544. 



Graba, his account of the Vogel-berg, 

 580. 



Graham, Mrs, her account of an earth 

 quake in Chili, 405. 



Graham, Professor, 570. 



Grampians, the, 659, 681. 



Gran Seco, the, 767. 



Granite, 638, 642 ; its composition, 624; 

 intermmglings of, in strata, 631 ; 

 underlying masses of, 632 ; croppings 

 out of, in Glen Tilt, 632 ; forms the 

 skeleton of the earth, 645 ; general 

 localities of, 645; area in Britain, 

 656. 



INDEX. 



Granitic rocks, 644651 ; veins in 



grauwacke and gneiss, 649 ; igneous 



character of, 657. 

 Granular structure of rocks, 624. 

 Graphic granite, illustrated, <j44. 

 Grass plants, 551. 

 Grauwacke, 655. 

 Gravity, or gravitation, the great law 



of, 39. See Attraction. 

 Great Bear Lake, 318, 322. 

 Great Britain, the surface of, nearly 



all stratified, 635. 

 Great Slave Lake, 318, 323. 

 Greeks, their attainments in astrono 

 mical science, 6, 12. 

 Green, Mr, the aeronaut, 69, 205. 

 Green sand, 733, et al.; shells found in, 



732, 733. 

 Greenland, east coast of, 342, 507 ; 



animalcula in the seas of, 348 ; insect 



scourges of, 573 ; white hare of, 589 ; 



brown fox in, 592. 

 Greenough, Mr, 619, 761. 

 Greenstone rock, is often columnar, 



626 ; or diorite, 645 ; or whinstone, 



652 ; porphyry, 654. 

 Greenwich Observatory, 664 ; its origin, 



35 ; its successive superintendents, 



36 ; its arrangements and importance, 



36. 



Grenier, fall of Mont, 411. 

 Greywacke, 662. 

 Grindelwald, valley of, 208. 

 Grinsill, fossil animal remains found 



at, 713. 



Groningen, peat of, 769. 

 Grotte des Promages, view of the, 653. 

 Grotto del Cane, description and view 



of, 255, 256. 

 Gryllus migratorius, or locust, ravages 



of, 573. 

 Guacharo, cavern of the, description 



of, 245 ; subterranean vegetation in 



the, 547. 



Guadiana, the river, 292. 

 Guadaloupe, island of, 360 ; limestone, 



human skeleton found in the, 636, 



760. 

 Gulf Stream, 360, 362, 364, 372, 494, 



592. 

 Guiana, spider of, 573; opossum of, 



689. 



Gurtshellir cavern in Iceland, 242. 

 Guwo-Upas, or Poisoned Valley of 



Java, its noxious gas, 256. 

 Guy's Cliff, fossil batrachians found in, 



713. 



Gwennap, consolidated mines of, 634. 

 Gymnotus electricus, the, 676; Hum- 



boldt's account of the numbing 



power of the, 576. 

 Gypsum found in red sandstone, 711 ; 



its nature, 739. 



Haematite, or bloodstone, 634. 



Hail, formation and theory of, 478; 

 operations of, 478 480. 



Hair, divers colours of the human, 

 599601. 



Halfway Island, coral formations of, 

 383 



Hall, Sir James, 649. 



Hall, Captain Basil, an expert navi 

 gator, 144; observations by, 329, 

 365 ; his Alpine experiences, 208 ; 

 his account of Niagara Falls, 288, 

 289; of sea-water, 329; of tropical 

 storms, 334 ; of the Yellow Sea, 371 ; 

 of the coral insects, 382 ; of Italian 

 remains, 405; of an inundation, 

 415. 



Halley, 3 ; his birth, career, and 

 labours, 41 ; his voyages, 41 ; be 

 comes second astronomer-royal, 41 ; 

 observes the comet of 1680, which 

 since took his name, 41 ; his predic 

 tions, and their verification since his 

 death, 42 ; notice of an eclipse, 60 ; 

 his opinions on meteors, 131 ; his 



795 



courtliness, 147; proceeds to St 

 Helena, 156 ; his observations on a 

 variable star in the Swan, 171 ; ob 

 servations by, 181, 182, 527. 



Halos, 530 ; view of, 531. 



Hamilton, Sir William, 404, 432. 



Hammer, M. yon, the Orientalist, 1SS. 



Hammerfest, island of, 552. 



Hampshire geological basin, 742. 



Hand, the, its importance to man, 59o. 



Hannibal, his passage into Italy, 217. 



Harding, discovered a planetoid, 158. 



Harmattan, or desert hot wind, 448. 



Hartside Mountain, 451. 



Hastings, singular atmospheric pheno 

 mena seen at, 537. 



Hatneld Chase, account of, 771. 



Hatteras, Cape, 364. 



Hawaii, or Owhyhee, prodigious vol 

 cano in, 210. 



Hawkshaw, memoir by Mr, 704. 



Hayti, negroes of, 609. 



Head, Sir Francis, 569 ; his description 

 of the Pampas, 233. 



Heads, shape and illustrations of the 

 varieties of human, 601605. 



Heat, rarefaction of air by, familiarly 

 illustrated, 436 ; is a grand agent in 

 evaporation, 461 ; a high degree of, 

 supportable by man, 484 ; intense, in 

 various places, 495 ; increases as we 

 descend into the earth, 501 ; has 

 caused the upheavings of rocks, 631, 

 et al; supposed focus of, in the 

 centre of the earth, 643; intense 

 action of, 643. 



Heath plants rare in Asia, and almost 

 unknown to America, 558. 



Heavens, appearance of the, 63; 

 scenery of the, 49 192 ; optical 

 illusion regarding the, 146 ; guide 

 to the constellations in the, 157, 158. 



Heber, Bishop, observation of, 599. 



Heberden, Dr, 469. 



Hebrides, the. 363 ; geology of the, 660, 

 6C2. ' 



Hecla, eruptions of Mount, 781, 782. 



Hedge or thicket plants, 550. 



Helena, St, observatory established at, 

 157 ; island of, 326, 356 ; peculiarity 

 of its plants, 558, 563 ; had no indi 

 genous population, 596. 



Heliacal rising and setting, the, 5, 



Heligoland, islands of, 393. 



Heliopolis, obelisk at, 15. 



Hellespont, movement of its waters, 

 366 ; Byron swam across, 366. 



Helm-wind in Cumberland, account of 

 the, 451. 



Hemans, Mrs, quoted, 156. 



Hemispheres of the globe, diversities of 

 the old and new, 198 ; temperatures 

 of northern and southern, 502. 



Henderson, Mr, 528. 



Henderson's Island, corals of, 384. 



Henslow, Professor, 568. 



Herbivorous fish, 678. 



Herculaneum, city of, 212, 423. 



Hercules, the constellation, 178, 188. 



Herefordshire has no coal, 639 ; sand 

 stone of, 682. 



Herodotus cited, 7, 275, 308, 397. 



Herring, the, its rapid movement, 575. 



Herschel, Sir William, his birth and 

 history, 44 ; his great telescope, 44 ; 

 much extended our knowledge of the 

 solar system, and discovered Uranus 

 with its satellites, 45 ; also the sixth 

 and seventh satellites of Saturn, 45 ; 

 resolved the Milky- Way into an in 

 finite number of stars, 46; time of 

 his death, 46 ; view of his great tele 

 scope at Slough, 160 ; suggests the 

 proper motion of stars, 178 ; his cata 

 logue of nebulae, 181 ; his observa 

 tions on, 181, 185 ; his estimations of 

 their distances, 184. 



Herschel, Caroline, sister of the pre 

 ceding, and the constant partner in 



