Chambers's Edinburgh Journal, No. 461: Volume 18, New Series, October 30, 1852Various
History
Chambers's Edinburgh Journal, No. 461: Volume 18, New Series, October 30, 1852
Various
Periodicals
The present year has been as remarkable for storms as the last was for
fine weather, and in parts of the world widely separated--the
continent of Europe and the United States of America, as well as our
own country. Meteorologists say, that the frequent atmospheric
disturbances will furnish us with valuable facts for theoretical and
practical use. In many places, the storms have been followed by
destructive floods, particularly in France, the effects of which, it
is said, are greatly aggravated by the spirit of modern improvement,
leading to the cutting down of trees and forests; so that the more the
land is cleared, the fiercer become the floods. It would be
interesting to test this fact by what takes place under similar
circumstances in America, where forest is in excess. The subject has
been brought before the Geological Society by Mr Prestwich, as regards
the Holmfirth flood, with a view to collect data as to the power of
moving water, the height of the flood, the time in which the water ran
off, together with exact measurements of the fall of the ground, and
the amount of denudation. All these are questions of great scientific
value in geology, because arguing from the effects produced by so
small a body of water comparatively, we may arrive at satisfactory
conclusions concerning the great floods of other ages. In the instance
here referred to, from 40,000 to 50,000 tons were carried from the dam
by the sudden rush, the greater part of which was deposited within the
first 300 feet. Lower down, from one to two feet of deposit was laid
over the meadows; rocks, weighing from five to twenty tons, were
transported to a considerable distance; and at seven miles from the
outbreak, near Huddersfield, a stratum of sand was laid over the
fields. The mention of these facts may be of service to those who have
had opportunities for observation elsewhere.
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