GENERAL SUMMARY OF CONTENTS 



OF 

 VOLUME V. OP COSMOS. 



INTRODUCTION to the special results of observation in the domain of 

 telluric phenomena Page 5-14 



FIRST SECTION 14-156 



Size, form, and density of the earth 14-37 



Internal heat of the earth 37-50 



Magnetic activity of the earth 50-156 



Historical portion 50-88 



Intensity 87-100 



Inclination 100-115 



Declination 115-146 



Polar light 146-156 



SECOND SECTION 157- 



Reaction of the interior of the earth upon its surface. 157, etc- 

 Earthquakes; dynamic action, waves of concussion... 160-176 



Thermal springs 177-198 



Gas springs, salses, mud volcanoes, naptha springs.... 198-214 



Volcanoes with and without structural frames (conical and bell-shaped 

 mountains) ................................. . ......................... 214-451 



Range of volcanoes from north (19 N. lat.) to south, as far as 46 

 south latitude : Mexican volcanoes, p. 266 and 375 (Jorullo, p. 292, 

 304, note at p. 293) ; Cofre de Perote, p. 307, Cotopaxi, notes p. 317- 

 321. Subterranean eruptions of vapor, p. 322-324. Central America, 

 p. 255-263. New Granada and Quito, p. 266-270, and notes (Anti- 

 sana, p. 311-316; Sangay, p. 416; Tungurahua, p. 415; Cotopaxi, 

 p. 318-320; Chimborazo, p. 431, note *); Peru and Bolivia, p. 270, 

 note ; Chili, p. 272, note || (Antilles, p. 394, note *). 



Enumeration of all the active volcanoes in the Cordilleras, p. 270. 

 Relation of the tracts without volcanoes to those abounding in them, 

 p. 280, note * at 268 ; volcanoes in the Northwest of America, to the 

 north of the parallel of the Rio Gila, p. 377-392 ; review of all the 

 volcanoes not belonging to the New Continent, p. 270-377; Europe, 

 p. 328, 329 ; islands of the Atlantic Ocean, p. 330 ; Africa, p. 332 ; 

 Asia Continent, p. 334-344; Thian-shan, p. 336, 337, 405, and 

 notes p. 327 to 330 (peninsula of Kamtschatka, p. 340-344) ; Eastern 

 Asiatic Islands, p. 344 (island of Saghalin, Tarakai or Karafuto, notes 



