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title page |
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Page 19:-
Within the last thirty years it has emerged eight times;
remaining upon the surface for longer or shorter periods. In a
succeeding part of this work the discussion of this subject will
be resumed at greater length.
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bottom wind
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Another peculiarity has been attributed to this lake in what is
called the Bottom Wind: which has been described as an agitation
of the water occurring when no wind can be felt on any part of
the lake. It has been supposed to originate at the bottom of the
water; and some, associating this with the last mentioned
phenomenon, have ascribed both to those subterranean convulsions
by which earthquakes are produced. Although it be admitted, that
the waves are sometimes greater than could be reasonably
expected, from any wind perceivable at the time; yet, it may be
doubted whether they are ever formed when no wind is stirring:
and if such a term as 'Bottom wind' must still be retained, I
think it ought to be referred to the bottom of the atmosphere,
rather than the bottom of the lake.
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depth
floods
skating
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The depth of Derwent Lake does not in any part exceed fourteen
fathoms: a great portion of it scarcely one fourth of that
measure. It is supplied chiefly from Borrowdale, and forms a
reservoir for the water, which in heavy rains pours down the
steep mountains on every side; by which means its surface is
often raised six or seven feet; and in an extraordinary case has
been known to rise a perpendicular height of eight feet, above
its lowest water
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gazetteer links
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-- "Derwent Lake" -- Derwent Water
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-- (floating island, Derwent Water)
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