of M. de Perthes have at length aroused the attention
of English men of science, and during 1859 a number of eminent
gentlemen--among them Sir Charles Lyell, Mr. Prestwich, Dr. Falconer,
and others--visited M. Perthes's collection, and saw the flints _in
situ_. Several of them have avowed their conviction of the genuineness
and antiquity of these relics. Sir Charles Lyell has given a guarded
sanction to the belief that they present one strong proof of a remote
human antiquity.
The objections that would naturally be made to this evidence are, that
the flints are purely natural formations, and not works of man,--that
the deposit is alluvial and modern, rather than of the ancient
drift,--or that these implements had been dropped into crevices, or sunk
from above, in later periods.
The testimony of disinterested observers seems to be sufficient as to
the human contrivance manifest in these flints; and the concurrence of
various scientific men hardly leaves room for doubt that these deposits
are of great antiquity, preceding the time in which the surface of
France took its present form, and dating back to what is called the
Post-Pliocene Period. Their horizontal position, and the great depth
at which the hatchets are found, together with their number, and the
peculiar incrustation and discoloration of each one, as well as their
being in company with the bones of the extinct mammalia, make it
improbable that they could have been dropped into fissures or sunk there
in modern times.[D] In regard to the absence of human bones, it should
be remembered that no bones are easily preserved, unless they are
buried in sediment or in bog; and furthermore, that the extent of the
researches in these formations is very small indeed. Besides, the
country where above all we should expect the most of human remains
in the drift-deposits, as being probably the most ancient abode of
man,--Asia,--has been the least explored for such purposes. Still this
is without doubt the weak point in the evidence, as proving human
antiquity.
[Footnote D: An article in Blackwood, (October, 1860,) which is
understood to be from the pen of Professor H.D. Rogers, admits entirely
that the flints are of human workmanship, and that it is impossible for
them to have dropped through fissures, as, according to the writer's
observation of the deposits, it would be impossible even for a mole to
penetrate them, so close are they. Professor Rogers takes the ground
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