Geikie says:
"In the low grounds of Switzerland we get a dark, tough clay, packed
with scratched and well-rubbed stones, and containing here and there
some admixture of sand and irregular beds and patches of earthy
gravel. This clay is quite unstratified, and the strata upon which it
rests frequently exhibit much confusion, being turned up on end and
bent over, exactly as in this country the rocks are sometimes broken
and disturbed below till. The whole deposit has experienced much
denudation, but even yet it covers considerable areas, and attains a
thickness varying from a few feet up to not less than thirty feet in
thickness."[1]
Here, then, are the objections to this theory of the glacier-origin
of the Drift:
I. The glaciers do not produce striated stones.
II. The glaciers do not produce drift-clay.
III. The glaciers could not have formed continental sheets of "till."
IV. The glaciers could not have existed upon, and consequently could
not have striated, the mountain-tops.
V. The glaciers could not have reached to the great plains of the
continents far remote from valleys, where we still find the Drift and
drift-markings.
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