The jaws are disproportionately large as
compared with the cranium or brain-case, and project to a degree which
brings the skull very close to that of the higher apes; while in mental
respects, in the absence of dwellings, and in many other ways they prove
to be the lowest of all mankind,--veritable brutes in form and mode of
life.
* * * * *
Without a full series of photographs before us the foregoing sketch of the
various races of men cannot make us fully acquainted with all the strange
varieties of the human body, but it will suffice to establish two
fundamental results. While all men agree in the possession of certain
features which set them apart from other members of the primate order,
they differ among themselves in such a way as to fall into four
well-marked subdivisions branching out from a common starting-point.
Furthermore, in each of these primary groups the subordinate types arrange
themselves also in the manner of branches arising from a common limb. This
is the relation that we have earlier found to be a universal one
throughout the animal kingdom, and science believes that it indicates
everywhere an evolutionary history--an actual development along different
lines of descent of forms which have a common starting-point and ancestry.
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