402 



INDEX. 



Japan, notice of the volcanoes of, 

 communicated by Sielbold, 373. 



Jaques de Vitry, his mention of 

 the magnetic needle, 53. 



Java, large number of volcanoes 

 in, 297; their comparatively 

 low elevation, 299; direction of 

 the principal axis, 301 ; vast 

 craters of some, 301 ; ribbed 

 formation, 303 ; lava streams, 

 305 ; salses of, and mofette 

 grottoes, described by Jung- 

 huhn, 220 ; tertiary formations, 

 298. 



Javanese names of mountains ex- 

 plained, 307. 



Jefferson, Mount, 417. 



Jesso, island of, 372 ; its nume- 

 rous volcanoes, 373. 



Jorullo, rise of the volcano, 280, 

 309 ; description of, by eye-wit- 

 nesses, 310 ; visit of Humboldt 

 to, 313, 319; visit of Buckart, 

 and changes noticed by him, 

 318. 



Juan Jayme, his scientific voyage, 

 55. 



Julia the volcanic island, 349. 



Julius, the proconsul, 196. 



Jumnotri, hot well of, 198. 



Junghuhn, his researches in Java, 

 220, 298. 



Jura limestone, name introduced 

 by Humboldt, 468. 



Kaimenes, upheaval of the three, 

 349. 



Kamtschatka, the loftiest volcano 

 of Asia found in, 300; de- 

 scribed, 362. 



Kerguelen's Island, extinct craters 

 of, 387. 



Kilauea, the great crater of, not a 

 solfatara, 392. 



Kina Bailu, a lofty mountain of 

 Borneo, 379. 



Kirgish Steppe, former water- 

 courses of the, 437. 



Kljutschewsk, the highest Asiatic 

 volcano, 300. 



Korai. See Corea. 



Kotzebue on the volcanic island 

 of Umnack, 230. 



Krapf, discovery of a volcano in 

 Eastern Africa by, 354. 



Krafto. See Saglialin. 



Krasnajazarki, polar bands ob- 

 served by Humboldt at, 155. 



Kreil on the magnetism of the 

 moon, 85. 



Krusenstern on a presumed sub- 

 marine volcano, 353. 



Kuen-lun, fire-springs of the, 

 438 ; the chain visited by the 

 brothers Schlagintweit, 438. 



Kuopho on the magnetic needle, 

 51. 



Kupffer on the frozen soil of 

 Northern Asia, 48. 



Kurile isles, active volcanoes of 

 the, 372. 



La Berarde, remarkable position 

 of the village of, 231. 



Lactacunga, repeated destruction 

 of the town of, 342 ; subter- 

 ranean pumice quarries of, 342, 

 481. 



Ladrone islands, volcanoes of, 395. 



Lagoni of the Tuscan Maremma, 

 211. 



Lamont deduces the law of the 

 period of alterations of decli- 

 nation, 84. 



Lancerote, destruction of the 

 island of, 228. 



Lava, recent, often perfectly simi- 

 lar to the oldest formations of 

 eruptive rock, 226; important 

 conclusion drawn therefrom, 

 226. 



Lava fields, various names for, 324. 



Lava streams rare in the volcanoes 

 of the Cordilleras of Quito, 277; 

 discovered in the eastern chain 

 of the Andes, 295 ; also in Java, 

 306; their essential character, 

 306 ; of Auverge, 330 ; of Etna, 

 465; of Hecla, 243; of Ter 

 nate, 381. 



