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title page |
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Page 170:-
is difficult to ascertain, with precision, the altitude of
different objects by trigonometrical calculation. In a morning
when the air above is clear, and nearly freed from vapour - while
that near surface of the ground is charged with as much as it can
contain without destroying its transparency - refraction is at
the greatest; objects near the horizon appear more elevated than
ordinary, and some are brought in sight that could not otherwise
have been discerned: when, a little after mid-day - the vapour
being more equally diffused - the altitude of an object may be
more accurately observed.
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snow
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A covering of snow makes a kind of barrier between the internal
heat of the earth and that of the atmosphere: being a bad
conductor, it preserves the surface of the earth from the
severity of cold in winter; but in spring, excludes it from the
genial effects of the solar rays. In the meantime the contiguous
atmosphere suffers more extensive variations; the greatest
extreme of cold being experienced when the earth is covered with
snow.
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rainfall
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The mean annual quantity of rain at Keswick is about 68 inches;
at Kendal 60 inches; at Manchester 35 inches; at London 20
inches.
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gazetteer links
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-- Kendal
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-- Keswick
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Lakes Guides menu.
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