c-177 Masterpieces of Science ally, each puff giving rise to clouds which shootup to a great height, and are either dissipatedor condensed in torrents of rain. Associatedwith the steam are various gaseous exhalations,most of which, however, are not combustible.Hence, the appearance of a column of… … Fig. si.—Diagrammatic Section of a Cinder Cone partly, by reflection from the glowing walls ofthe pipe and from the surface of the moltenmatter below. In the early stages of an erup-tion, huge fragments of rock may be ejected;for when, after a period of repose, the pent-upsteam and gases at last…
Astronomy · Geology
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