INDEX. 



457 



Hoschan and Ho-Uting, of Eastern A 



209. 

 Humboldt, Alexander von, observatioi 

 temperature In Mexico and Peru, 43; 

 magnetic observations by, 95; liin de- 

 termination of the magnetic equator, 

 102; observations of polar bands, 150: 

 visit 1 1 > the Bcene of the earthquake oJ 

 Eiobamba, 100; observations of the phe- 

 nomena of an eruption of Vesuvius, 174; 

 barometrical measurements of the same 

 mountain, 236 : his definition ofthe term 

 "volcano," 272; his visit to Jorullo, 

 295, 301 ; the name Jura limestone in- 

 troduced by, 436; apparatus employed 

 by, in the New "World, 429; his miner- 

 alogies! collections, 445; on the forma- 

 tion of pumice, 450. 

 Humboldt, Alexander von, works by, cited 

 in the text or notes : 

 Asie Centrale, 52, 100, 114, 143, 144, 

 170, 190, 202, 209, 210, 238, 279, 310, 

 334, 336, 33S, 349, 353, 409. 

 Atlas G6ographique et Physique de la 

 Nouvellc Espagne, 22S, 235, 250, 

 291, 404. 

 Essai Geognostique sur le Gisement 

 des Roches, 212, 302, 415, 425, 436, 

 442, 450. 

 Essai sur la Geographic des Plantes, 



239, 42T. 

 Essai Politique sur la Nouvelle Es- 

 pagne, 44, 1S9, 265, 277, 293, 294, 

 307, 379, 3S0, 391, 427. 

 Exanicn Critique de l'Histoire de la 

 Geographie, 52, 110, 123, 173, 233, 

 248. 

 Fragmens de Geologie et de Climato- 



logie Asiatiques, 349, 354. 

 Kleinere Schriften, 165, 205, 22S, 275, 



315, 316, 321, 422, 446. 

 Reeueild 1 Observations Astronomiques, 

 43, 103, 139, 212, 239, 265, 29T, 307 

 Relation Historique du Voyage aux 

 Regions Equinoxiales, 96, 110, 113, 

 115, 16T, 16S, 1T9, 23T, 23S, 286, 394, 

 396 399. 

 Views' of Nature, 248, 343, 3S1, 399. 

 Vues des Cordilleres, 20S, 228, 230, 235. 

 Hypersthene rock, its employment for or- 

 *■ namental purposes, 446. 

 Ilypsometry of volcanoes, first group, 235 ; 

 second group, 235; third group, 236; 

 fourth group, 23S ; fifth group, 239. 



Iceland, the Geysers of, 190; mud springs, 



203; volcanoes, 330. 

 nha do Fogo, one of the Cape Vcrd Isl- 

 ands, so called, 249. 

 Impulse in volcanic phenomena, summary 



of views on, 162. 

 Tnarima, 253. 

 Inclination, magnetic, 100; maxima and 



minima, 107; secular variation, 109. 

 Indian Ocean, volcanoes of the, 35S, 363. 

 Infusoria, universal diffusion of the, 26. 

 Intensity of the magnetic terrestrial force, 



58, 61, 87. 

 Interior of the earth, its reaction on the 



surface, 157. See, also, Earthquakes. 



Volcano 



Vol. V,— U 



Invariable temperature, Btratum of, ll. 



taenia, 252. 



isiami oi Desolation. BeeKerguelen'sIsl 



and. 



Islands, temporary, enumerated, 328. 



Islands and the shores of continents, great 



number of volcanoes found on, 4 

 [slanda ofthe Pacific, Dana's classification 



of, 865. 

 [sluga, volcano of, 271. 

 Izalco, volcano of, described, 248; itscrup- 



tions, 261. 

 Iztaccihuatl, a volcano, meaning of tho 



name, 228. 



Jacob, valley of, on Ararat, 230. 



Jakutsk, mean annual temperature of, 46; 

 extreme variations, 47. 



Jan Mayen, volcanoes ofthe island of, 330. 



•Japan, notice of tho volcanoes of, commu- 

 nicated by Sicbold, 350. 



Jaques de Vitry, his mention ofthe mag- 

 netic needle, 54. 



Java, large number of volcanoes in, 281; 

 then' comparatively low elevation, 2S2 ; 

 direction of the principal axis, 284 ; vast 

 craters of some, 284 ; ribbed formation, 

 2S6; lava streams, 2SS; salses of, and 

 mofette grottoes, described by Jung- 

 huhn, 210 ; tertiary formations, 2S1. 



Javanese names of mountains explained, 

 290. 



Jefferson, Mount, 3S9. 



Jesso, island of, 349 ; its numerous _ vol- 

 canoes, 350. 



Jorullo, rise of the volcano, 206, 291 ; de- 

 scription of, by eye-witnesses, 292; vis- 

 it of Humboldt to, 295, 300; visit of 

 Buckart, and changes noticed by bun, 

 300. 



Juan Jayme, his scientific voyage, 50. 



Julia, the volcanic island, 328. 



Julius, the proconsul, 1S8. 



Jumnotri, hot well of, 190. 



Junghuhn, his researches in Java, 210, 2S1. 



Jura limestone, name introduced by Hum- 

 boldt, 436. 



Kaimenes, upheaval of the three, 32S. 

 Kamtschatka, the loftiest volcano of Asia 



found in, 284; described, 340. 

 Kerguelen's Island, extinct craters of, 363. 

 Kilauea, the great crater of, not a solfa- 



tara, 367. 

 Kina Bailu, a lofty mountain of Borneo, 



356. 

 Kirghis Steppe, former water-courses of 



the, 408. 

 Kljutschewsk, the highest A:iatic vol- 

 cano, 2S4. 

 Korai. See Corea. 

 Kotzebue on the volcanic island of Um- 



nack, 220. 

 Krafto. See Saghalin. 

 Krapf, discovery of a volcano in Eastern 



Africa by, 333. 

 Krasnajazarki, polar bands observed by 



Humboldt at, 150. 

 Kreil on the magnetism of the moon, 85. 

 Krusenstern on a presumed submarine vol- 



cano, 3; 



