Chapter

 1 VI   | Professor; “observe that all the volcanoes are called jokuls, a word
 2 VI   |    Iceland nearly all the active volcanoes discharge through beds of
 3 VI   |        Yes; the number of active volcanoes on the surface of the globe
 4 VI   |     longer reckoned among active volcanoes.”~To such positive statements
 5 VI   |         known that the number of volcanoes has diminished since the
 6 VI   |        the cause of the numerous volcanoes at the origin of the earth.”~“
 7 IX   |      stones extracted out of the volcanoes by their own labour and
 8 X    |         mountains, glaciers, and volcanoes there are to study, which
 9 X    |          one of the most curious volcanoes, and the crater of which
10 XIII |   nearest mountains, now extinct volcanoes, but the ruins around revealed
11 XV   |     rocks and stones. Before the volcanoes broke out it consisted of
12 XLIII|       only the imperfectly known volcanoes of the north-east coast