Page:Popular Science Monthly Volume 52.djvu/174

160 are generally known as Teutonic by descent. Or is there some complex product here made up of both ethnic elements, in which



case the apparent homogeneity revealed by the head form is entirely specious and misleading? As our mainstay in such matters, cephalic index, fails us utterly, since both north and south are precisely alike in this respect, we must rely upon the other, albeit less stable, physical traits. To these we turn next in order.

A glance at the accompanying map of relative brunetteness suffices to show a curious increase of pigmentation from northeast