A Geological Manual (Paperback, UK ed.)

Purchase of this book includes free trial access to www.million-books.com where you can read more than a million books 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...

General

Imprint:	General Books LLC
Country of origin:	United States
Release date:	2012
First published:	2012
Authors:	Henry Thomas De La Beche
Dimensions:	246 x 189 x 14mm (L x W x T)
Format:	Paperback - Trade
Pages:	262
Edition:	UK ed.
ISBN-13:	978-1-4432-9705-9
Categories:	Books > Humanities > History > General Books > History > General
LSN:	1-4432-9705-4
Barcode:	9781443297059

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