may give rise to theformation of a new cone seated within the oldcrateral hollow. Great changes may indeed be182 Earthquakes and Volcanoes effected in the character of a volcano by succes-sive eruptions, new cones being thrown up atone time, and old ones obliterated at another.Fig 54, shows the… … ^£1§ Fig. 54.—Summit of Vesuvius in 1756 shown in Fig. 55, where a single cone rises fromthe floor of the great crater. The curious stagesthrough which a volcano may pass are well illus-trated by the story of Vesuvius. Rather less than two thousand years ago, thatmountain was as peaceful as…
Astronomy · Geology
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