INDEX. clxxxiii 



Volcanic formations, origin of some erupted rocks possibly anterior to the up- 

 heaval of volcanoes proper, p. 222236 and 447448. 



Volcanism, or reaction of the interior of the earth on its exterior, p. 162 448. 



Volcano, one of the Lipari Islands, p. 245, 326, Notes p. 342. 



Volcanoes, general remarks, p. 221-228, 242, 248, 309, 323, 406, and 411 ; different 

 forms of the framework of, p. 236, elevation of, over fissures, p. 259, (and 

 see "Fissures;") comparative frequency on islands and coasts, p. 411; dis- 

 tances from the sea, p. 413417; sounds emitted by, or "voices" of, 

 particular, p. 257, and Note 383 ; ribbed character in some, p. 284, and Note 

 421; five groups of, in America, p. 273 ; of Central America, p. 262 267,308; 

 and Notes 390, 391, and 396; of Mexico, p. 267269, 289307, 387, and 435, 

 and Notes 394, 395 ; of Quito and New Granada, p. 269, 274, and Note 

 397 ; of Peru and Bolivia, p. 276, and Note 398 ; of Chili, p. 277, and Note 

 399; of Java, p. 279, Notes 410424; of Europe, p. 326 ; of islands in the 

 Atlantic, p. 328; of Africa, p. 332; of West and Central Asia, p. 334; of 

 North-east Asia, p. 342; of East Asiatic islands, p. 349; of Japan, 355; of 

 South Asiatic islands, p. 361 ; of the Indian Ocean, p. 367; of the Pacific, p. 

 372 ; of New Zealand, p. 380 ; of North America, p. 388 ; of the West Indies 

 or Antilles, Note 555 ; number of, on the globe, p. 406. 



Whipple (Lt.), his expedition in the Rocky Mountains, p. 397. 

 W r olf, on solar spots, p. 81, Note 73. 



Younghusband, magnetic disturbances, p. 140141. 

 Zealand, New, volcanoes and volcanic action in, p. 380382. 



END OP VOL. IV. PART I. 



