Book,  Chapter

 1        I,  XVII |       much prolonged. Beyond the volcanic peak, moreover, the waters
 2        I,  XX   |       less than three hours. The volcanic eruption was manifestly
 3        I,  XXI  |        and fodder, across to the volcanic headland. Loud and hearty
 4        I,  XXII |       accompany the discharge of volcanic matter, but the heated lava,
 5        I,  XXII | obsidians, and other minerals of volcanic origin with which the base
 6        I,  XXIII|    partaking gratuitously of the volcanic light and heat which were
 7        I,  XXIII|          had taken refuge on the volcanic promontory; not that there
 8       II,  X    |          such a cessation of the volcanic eruption, whilst the comet
 9       II,  XII  |       become of them all, if the volcanic heat should really be subsiding,
10       II,  XV   |  travelers again set foot on the volcanic promontory just in time