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to sea, by the Naero channel of the Vigten islands,
and reached Lekö about the next midnight.
All the rocky hills hereabouts, varying from
mere stony knobs just rising barely above the sea,
to mountains of 1000 or 2000 feet in height,
display very strikingly the tremendous agency of the
great ice sheet that once overwhelmed and swept
across them. They have all lost their original
angularity, that angularity which is always
displayed by such rocks when they are simply worn,
split, and riven by atmospheric agencies, by
running water, and by the freezing of the rain or
snow water that directly falls upon them, and
leaves them alternately wet and dry, frozen and
thawed.
It is easy to understand, that if such rocks had
been overswept by a vast ice sheet, their original
angles must have been crushed, scraped, ground,
and otherwise rounded down, according to the depth
of the glaciation and its period of duration; and
further, that if long ages have elapsed since this
great ice covering melted away, there would be
indications of a subsequent renewal of the atmospheric
weathering, and a consequently proportionate
degree of superficial angularity on the most exposed
surfaces. This is exactly what I now see displayed
on a magnificent scale, and quite universally,
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