There is not a fiord of the Norway shore that does not bear
upon its sides the tracks of the great masses of ice which once forced
their way through it, and thus found an outlet into the sea, as in
Scotland. Indeed, under the water, as far as it is possible to follow
them through the transparent medium, I have noticed in Great Britain and
in the United States the same traces of glacial action as higher up, so
that these ancient glaciers must have extended not only to the
sea-shore, but into the ocean, as they do now in Greenland. Nor is this
all. Scandinavian boulders, scattered upon English soil and over the
plains of Northern Germany, tell us that not only the Baltic Sea, but
the German Ocean also, was bridged across by ice, on which these masses
of rock were transported. In short, over the whole of Northern Europe,
from the Arctic Ocean to the northern borders of its southern
promontories, we find all the usual indications of glacial action,
showing that a continuous sheet of ice once spread over nearly the whole
continent, while from all the mountain-ranges descended those more
limited glacial tracks terminating frequently in transverse moraines
across the valleys, showing, that, as the general ice-sheet broke up and
contracted into local glaciers, every cluster or chain of hills became a
centre of glacial dispersion, such as the Alps are now, such as the
Jura, the Highlands of Scotland, the mountains of Wales and Ireland, the
Alps of Scandinavia, the Hartz, the Black Forest, the Vosges, and many
others have been in ancient times.
* * * * *
In the next article we shall consider the glacial phenomena as they
exist in America.
FOOTNOTES:
[A] See January No., p. 61.
[B] Having enumerated the characteristic features of the glacial
phenomena in the preceding pages, I throw into this note some
explanation which may render my views of the parallel roads more
intelligible, not to interrupt again the exposition with details. It
would be desirable, however, that the reader should first make himself
thoroughly familiar with the localities concerned, before proceeding any
farther. I would therefore state here, that, in the wood-cut opposite,
G. R. indicates the valley of Glen Roy, with the three parallel roads
marked 1, 2, 3. Glen Spean is designated by G. S., and the river flowing
at its bottom by S. Loch Laggan, out of which the River Spean rises, is
marked L. G. indicates Glen Gloy,
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