As we proceeded
the lava became hotter and hotter, and from every crack arose gaseous
fumes, affecting our noses and throats in a painful manner; till at
last, when we had to pass to leeward of the molten stream flowing from
the lake, the vapours almost choked us, and it was with difficulty we
continued to advance. The lava was more glassy and transparent-looking,
as if it had been fused at a higher temperature than usual; and the
crystals of sulphur, alum, and other minerals, with which it abounded,
reflected the light in bright prismatic colours. In places it was quite
transparent, and we could see beneath it the long streaks of a stringy
kind of lava, like brown spun glass, called 'Pele's hair.'
At last we reached the foot of the present crater, and commenced the
ascent of the outer wall. Many times the thin crust gave way beneath
our guide, and he had to retire quickly from the hot, blinding,
choking fumes that immediately burst forth. But we succeeded in
reaching the top; and then what a sight presented itself to our
astonished eyes! I could neither speak nor move at first, but could
only stand and gaze at the horrible grandeur of the scene.
We were standing on the extreme edge of a precipice, overhanging a
lake of molten fire, a hundred feet below us, and nearly a mile
across.
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