constrained so to do.

The ancients knew that the first homes of mankind were grottoes. They
wrote of Troglodytes in Africa and of cave-dwellers in Liguria. In
Arabia Petraea, a highly civilized people converted their simple rock-
dwellings into sumptuous palaces.

I might fill pages with quotations to the purpose from the classic
authors, but the reader would skip them all. It is not my intention to
give a detailed account of the prehistoric cave-dwellers. They have
been written about repeatedly. In 1882, Dr. Buckland published the
results of his exploration of the Kirkdale Cave in Yorkshire in
_Reliquiae Diluvianae_, and sought to establish that the remains
there found pertained to the men who were swept away by Noah's flood.
The publication of Sir Charles Lyall's "The Geological Evidences of the
Antiquity of Man," in 1863, was a shock to all such as clung to the
traditional view that these deposits were due to a cosmic deluge, and
that man was created 4004 B.C.

At first the announcements proving the antiquity of man were received
with orthodox incredulity, because, although the strata, in which the
remains were found, are the most modern of all earth's formations,
still the testimony so completely contravened traditional beliefs, that
the most conclusive evidence was required for its proof. Such evidence
has been found, and is so strong, and so cumulative in character as to
be now generally accepted as conclusive.

Evidence substantiating the thesis of Lyall had been accumulating, and
the researches of Lartet and Christy in the Vezere valley, published in
1865-75, as _Reliquiae Aquitanicae_, conclusively proved that man in