Milne-Holme, and also observed by Professor Jamieson.
During the formation of the upper terrace, the waters escaped through
the westernmost tributary of the River Spey, in the direction of the
northeast corner of the wood-cut, and during that of the lowest terrace,
at the eastern end of Loch Laggan, also through the valley of the Spey.
The state of preservation of the parallel roads is such as to prove that
no disturbance of any importance can have taken place in the country
since they were formed. Far from believing, therefore, that these
remarkable shelves are ancient sea-beaches, I am prepared to maintain,
that, had the area occupied by them been submerged only for a few days,
under an ocean rising and falling for several feet with every tide, no
vestige would have been left of their former existence.
[C] The wood-cut on p. 730 is a reproduction of the little map
accompanying a paper of mine upon "The Glacial Theory and its Recent
Progress," printed in the "Edinburgh New Philosophical Journal" for
October, 1842. I might have greatly improved the topography, and
represented more accurately the details of the phenomenon, by availing
myself of the much larger and very minute map recently published by
Professor Thomas F. Jamieson, of Aberdeen; but I thought it advisable to
leave my first sketch as I presented it twenty-two years ago, in order
to show that Sir Charles Lyell is mistaken in ascribing (see "Antiquity
of Man," pp.
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