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for free. Excerpt from book: Section 3were so dense, that after the
first two jets I could only see the highest part of the spray, and
some of it that was occasionally thrown out sideways. After the
last jet, which was the most furious, the water suddenly left the
basin, and sunk into the pipe in the centre*." The water sunk in
the pipe to the depth of ten feet, but afterwards rose gradually;
when sufficiently high, its temperature was observed, and found =
209 F. A subsequent eruption of the same Geyser is thus described
by the same author. After an alarm given of its approaching
activity, "in an instant," he says, " we were within sight of the
Geyser; the discharges continuing, being more frequent and louder
than before, and resembling the distant firing of artillery from a
ship at sea ....... It raged furiously, and threw up a succession
of magnificent jets, the highest of which was at least ninety
feetf." One of the other fountains, which was formerly an
insignificant spring, and now known as the New Geyser, alternates
in like manner. The eruption commences, as at the Great Geyser, by
short jets, which increase in size. When a considerable mass of
water is thrown out, the steam rushes forth furiously, accompanied
by a loud thundering noise, carrying the water, when Sir G.
Mackenzie observed it, to at least seventy feet. He describes it as
continuing in this magnificent play for more than half an hour. "
When stones are dropped into this pipe, while the steam is rushing
out, they are immediately thrown up, and are commonly broken into
fragments, some of which are projected to an astonishing height):
." There are other alternating hot springs in Iceland, which are,
however, of greatly inferior magnitude to the Geysers. The springs
of Reikum, with a temperature of 212 Fahr., rise and fall, and dash
up spray to the height of twent...
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