486 



INDEX. 



British isles, volcanic phenomena 



in the, 350, 483. 

 Bromo, a volcano in Java, its 



crater lake, 302. 

 Brooke, Eajah, on the volcanic 



appearances in Borneo, 380. 

 Brooks of cold water said to be 



converted into thermal springs, 



314. 



Brown, Mount, a volcano, 418. 

 Buch, Leopold von, his work on 



basaltic islands and craters of 



elevation, 226 ; on the erupted 



matters of Vesuvius, 235 ; on 



the trachytes of Etna, 469. 

 Buddhist fancy as to the causa of 



earthquakes, 177. 

 Bun'sen on fumaroles, 424. 

 Burkart, his visit to Jorullo, 318. 



Calabria, earthquake in, in 1783, 

 172. 



Calamatico, el, an ancient name for 

 the magnetic pole, 56. 



Calbuco, Volcan de, 290. 



California, list of the volcanoes of, 

 417. 



Callaqui, volcano of, 290. 



Canary Islands, eruptions in the, 

 477. 



Capac-Urcu,an extinct volcano 282. 



Cape of Good Hope, magnetic 

 observations at, 113. 



Carbonic acid gas, considerations 

 on, 442. 



Carbonic acid gas, jets of, 201. 



Cascade Mountain range, in Cali - 

 fornia, 416. 



Castillo, Fray Bias del, explores 

 the crater of Masaya, 260. 



Catalans, advanced state of navi- 

 gation among the, 53, 54. 



Caucasus, volcanic phenomena of 

 the, 208 ; a continuation of 

 the Thian-schan, 360; its ex- 

 tinct volcanoes, 360. 



Cauldron-like depressions of volca- 

 noes, 231. 



Cavanilles, his account of the 

 earthquake of Riobamba, 1 73. 



Celebes, volcanoes of, 381. 



Central America, linear volcanoes 

 of, 268, 272 ; number of volca- 

 noes in, 273; recommended for 

 further examination, 278. 



Chacani or Charcani, volcano of, 

 286. 



Chahorra, the crater of, on the 

 Peak of Teneriffe, 262. 



Chatham Island, its position, 401 . 



Chili, group of volcanoes in, 288 ; 

 their greatest elevation, where 

 attained, 296. 



Chilian, Volcan de, 289. 



Chiloe, submarine volcano near, 

 288. 



Chimborazo, majestic dome, form 

 of, 2 ; ascent of, 464 ; conside- 

 rations on the height of the 

 mountain, 464. 



Chimborazo rock, Rammelsberg's 

 analysis of, 461, Abich's, 462; 

 remarks on the differences be- 

 tween them, 463. 



Chimsera, in Lycia, not a volcano, 

 but a perpetual burning spring, 

 212,257; analogous phenomenon 

 in the Kuen-lun, 438. 



Chinal, volcano of, 290. 



Chinese, early acquainted with 

 the polarity of the magnet, 50 f. 

 rope-boring, 219; early maps 

 of the, 434. 



Chuapri, volcano of, 288. 



Cinders, cones of, wanting in seve- 

 ral volcanoes which once emit- 

 ted lava-streams, 481; thickness 

 of the layers of, on Sangay, 265. 



Circumvallations, volcanic, 230 ; 

 that of Oisans, in France, its 

 great extent, 231 ; of Mont 

 Blanc, 231. 



Coal strata, 443. 



Coan, the missionary, on the basin 

 of Kilauea, 393. 



Coast Kange mountains, in Cali- 

 fornia, old volcanic rocks of the, 

 416. 



Cofre de Perote, Humboldt'a 

 ascent of. 326. 



