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Updated: May 15, 2025
Whereout pure springs of unapproachable fire are vomited from the inmost depths: in the daytime the lava-streams pour forth a lurid rush of smoke: but in the darkness a red rolling flame sweepeth rocks with uproar to the wide deep sea.
But a similar cause can hardly apply to the separation of the crystals of these lava-streams. The sinking of crystals through a viscid substance like molten rock, as is unequivocally shown to have been the case in the experiments of M. Dree, is worthy of further consideration, as throwing light on the separation of the trachytic and basaltic series of lavas. Mr.
The flanks of this volcano are diversified by several fresh craters and lava-streams, while hot springs burst out with a hissing noise on its southern flank, showing that molten matter lies below at no very great depth. This island probably lies along the dividing line between the non-volcanic and volcanic region of the Mediterranean, and is consequently liable to intermittent eruptions.
Among these cones are large plains of clinkers and fine gravel, but no lava-streams, and at a height of 12,000 feet the sides of some of the valleys are filled up with snow, of a purity so immaculate and a brilliancy so intense as the fierce light of the tropical sun beat upon it, that I feared snow-blindness.
"You shall," reiterated the Pope, in the portentous thunderings of the Vatican. "You shall," came echoed back from the palaces of Vienna, from the dome of the Kremlin, from the seraglio of the Turk, and, in tones deeper, stronger, more resolute, from constitutional, liberty-loving, happy England. Then was France a volcano, and its lava-streams deluged Europe. The people were desperate.
On the ancient lava-streams old trees grew, the most luscious grapes ripened on the flanks of the mountain, and from their descendants is pressed out at the present day a wine called Lachryma Christi.
After half an hour we reached the dwarf platform of Alta Vista, 700 feet above the Estancia and 10,730, in round numbers, above sea-level. The little shelf, measuring about 100 to 300 yards, at the head of the fork where the north-eastern and the south-western lava-streams part, is divided by a medial ledge.
The summit of this hill now nearly equals in height the crateriform ridge; and before having been denuded, it was probably higher than this ridge, from which it is separated by a broad and much lower tract of country; we here, therefore, see that the lower extremities of a set of lava-streams have been tilted up to as great a height as, or perhaps greater height than, the crater, down the flanks of which they originally flowed.
The more ancient lava-streams just described are invaded by currents and surmounted by cones of eruption of more recent date, similar to those of the Puy de Dôme group lying to the northward. Such cones and currents, amongst which are the Puy de Tartaret and that of Montenard, present exactly the same characters as those of this group, to which we shall return further on.
A subterranean rumbling was audible throughout all lands; a dull thundering and outcry, as though the solid earth were about to change into one vast volcano one measureless crater that would dash to atoms, and entomb, with its blazing lava-streams and fiery cinder-showers, the happiness and peace of all humanity.
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