INDEX. 



457 



Ho-schan and Ho-tsing^ of Eagtem Asia, 



209. 

 Humboldt, Alexander von, observations of 

 temperature in Mexico and Peru, 43; 

 magnetic observations by, 95; his de- 

 temiination of the magnetic equator, 

 102; observations of polar bands, 150; 

 visit to the scene of the earthquake of 

 Kiobamba, 166 ; observations of the phe- 

 nomena of an eruption of Vesuvius, 1T4; 

 barometrical measurements of the same 

 mountain, 236 ; his definition of the 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- 

 alogical collections, 445; on the forma- 

 tion of pumice, 450 

 Humboldt, Alexander von, -vvorks by, cited 

 in the text or notes : 

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

 ITO, 199, 202, 209, 210, 238, 279, 316 

 334, 336, 338, 349, 353, 409. 

 Atlas Geogi-aphique et Physique de la 

 Nouvelle Espagne, 228, 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, 427. 

 Essai Politique sur la Nouvelle Es- 

 pagne, 44, 189, 2C5, 277, 293, 294. 

 307, 379, 380, 391, 427. 

 Examen Critique de I'Histoire i3e la 

 Geographie, 52, 116, 123, 173, 233 

 248. 

 Fragmens de Geologic et de Climato- 



logie Asiatiques, 349, 354. 

 Kleinere Schrifteu, 165, 205, 228, 275, 



315, 316, 321, 422, 446. 



Recueil d' Observations Astronomiques, 



43, 103, 139, 212, 239, 265, 297, 307. 



Relation Historique du Voyage aux 



Regions Equinoxiales, 96, 110, 113, 



Invariable temperature, stratum of, 41. 



Ischia, 252. 



Island of Desolation. See Kerguelen' s Isl- 

 and. 



Islands, temporary, enumerated, 828. 



Islands and the shores of continents, great 

 number of volcanoes found on, 403. 



Islands of the Pacific, Dana's classification 

 of, 365. 



Isluga, volcano of, 271. 



Izalco, volcano of, described, 248 ; its erup- 

 tions, 261. 



Iztaccihuatl, a volcano, meaning of the 

 name, 228. 



Jacob, valley of, on Ararat, 230. 



Jakutsk, mean annual temperature of, 46 ; 

 extreme variations, 47. 



Jan Mayen, volcanoes of the island of, 330. 



Japan, notice of the volcanoes of, commu- 

 nicated by Siebold, 350. 



Jaques de Vitry, his mention of the mag- 

 netic needle, 54. 



Java, large number of volcanoes in, 281 ; 

 their comparatively low elevation, 282 ; 

 direction of the principal axis, 284 ; vast 

 craters of some, 284; ribbed formation, 

 286; lava streams, 288; salses of, and 

 mofette grottoes, described by Jung- 

 huhn, 210 ; tertiary formations, 281. 



Javanese names of mountains explained, 

 290. 



Jefferson, Mount, 389. 



Jesso, island of, 349 ; its numeroua Vol- 

 canoes, 850. 



Jorullo, rise of the volcano, 266, 291 ; de- 

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

 it of Humboldt to, 295, 300; visit of 

 Buckart, and changes noticed by him, 

 300. 



Juan Jayme, his scientific voyage, 56. 



Julia, the volcanic island, 328. 



Julius, the proconsul, 188. 



381, 899. 

 Vues des Cordilleres, 208, 228, 230, 235. 

 Hypersthene rock, its employment for or- 

 namental purposes, 446. 

 Hypsometry of volcanoes, first group, 235; 

 second gi'oup, 285; third group, 236; 

 fourth group, 238 ; fifth group, 239. 



Iceland, the Geysers of, 190 ; mud springs, 



203; volcanoes, 880. 

 Ilha do Fogo, one of the Cape Verd Isl- 

 ands, so called, 249. 

 Impulse in volcanic phenomena, summary 



of views on, 162. 

 Inarima, 253. 

 Inclination, magnetic, 100; maxima and 



minima, 107 ; secular variation, 109. 

 Indian Ocean, volcanoes of the, 858, 363. 

 Infusoria, universal diffusion of the, 26. 

 Intensity of the magnetic terrestrial force, 



68, 61, 87. 

 Interior of the earth, its reaction on the 



surface, 157. See, also. Earthquakes, 



Volcanoes. 



Vol. v.— U 



Jumnotri, hot well of, 190. 



Junghuhn, his researches in Java,''210, 281. 



116, 167, 168, 179, 237, 238, 286, 394^ Jura limestone, name introduced by Hum- 



896, 399. TI boldt, 436. 



Views of Nature, 248, 343, 



Kaimenes, upheaval of the three, 328. 



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 IBailu, a lofty mountain of Borneo, 

 356. 



Kirghis Steppe, fonner water-courses of 

 the, 408. 



Kljutschewsk, the highest Asiatic vol- 

 cano, 284. 



Korai. See Corea. 



Kotzebue on the volcanic island of Um- 

 nack, 220. 



Krafto. See Saghalin. 



Ki-apf, discovery of a volcano in Easteni 

 Africa by, 883. 



Krasnajazarki, polar bands observed by 

 Humboldt at, 150. 



Kreil on the magnetism of the moon, 85. 



Krusenstern on a presumed submarine vol- 

 cano, 332, 



