least as far back as the close of the
preceding geological age.<51>

It seems as if here a halt had been called, and all possible objections
are urged against a further extension of time. It is, of course, well to
be careful in this matter, and to accept only such results as inevitably
follow from well authenticated discoveries. But it also seems to us
there is no longer any doubt that man dates back to the beginning of
that long extended time we have named the Glacial Age.<52>

In the first place, we must recall the animals that suddenly made their
appearance in Europe at the beginning of this age. Though there were a
number of species, since become extinct, the majority of animal forms
were those still living.<53>

These are the animals with which man has always been associated. There
is therefore no longer any reason to suppose the evolution of animal
life had not reached that stage where man was to appear. We need only
recall how strongly this point was urged in reference to the preceding
geological epoch, to see its important bearings here. Mr. Boyd Dawkins
has shown that the great majority of animals which invaded Europe at the
commencement of this age, can be traced to Northern and Central Asia,
whence, owing to climatic changes, they migrated into Europe.<54>

Inasmuch as man seems to have been intimately associated with these
animals, it seems to us very likely that he came with them from
their home in Asia. We think the tendency of modern discoveries is
to establish the fact that man arrived in Europe along with the great
invasion of species now living.<55>

Turning now to the authorities, we find this to be the accepted theory
of many of those competent to form an opinion.

In England Mr. Geikie has strongly urged the theory that the Glacial Age
includes not only periods of great cold, but also epochs of exceptional
mildness; and he strongly argues that all the evidence of the River
Drift tribes can be referred to these warm interglacial epochs; in other
words, that they were living in Europe during the Glacial Age.<56>

In answer to this it has been stated that the relics of River Drift
tribes in Southern England overlie bowlder clay, and must therefore be
later in origin than the Glacial Age.<57>

But, Mr. Geikie and others have shown that the ice of the last great
cold did not overflow Southern England,<58> so that this evidence,
rightly read, was really an argument in favor of their interglacial