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page 24
brooks spend their fury, finding a free course toward and
also down the channel of the main stream of the vale before
those that have to pass through the higher tarns and lakes
have filled their various basins, a gradual distribution is
effected; and the waters thus reserved, instead of uniting,
to spread ravage and deformity, with those which meet with
no such detention, contribute to support, for a length of
time, the vigour of many streams without a fresh fall of
rain. Tarns are found in some of the vales, and are numerous
upon the mountains. A Tarn, in a Vale, implies, for
the most part, that the bed of the vale is not happily
formed; that the water of the brooks can neither wholly
escape, nor diffuse itself over a large area. Accordingly,
in such situations, Tarns are often surrounded by an
unsightly tract of boggy ground; but this is not always the
case, and in the cultivated parts of the country, when the
shores of the Tarn are determined, it differs only from the
Lake in being smaller, and in belonging mostly to a smaller
valley, or circular recess. Of this class of miniature
lakes, Loughrigg Tarn, near Grasmere, is the most beautiful
example. It has a margin of green firm meadow, of rocks, and
rocky woods, a few reeds here, a little company of
water-lilies there, with beds of gravel or stone beyond; a
tiny stream issuing neither briskly nor sluggishly out of
it; but its feeding rills, from the shortness of their
course, so small as to be scarcely visible. Five
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