Page:Popular Science Monthly Volume 19.djvu/307

Rh are prognathous or "forward-jawed," while the European is orthognathous, or "upright-jawed." At the same time the Australian and African have more retreating foreheads than the European, to the disadvantage of the frontal lobes of their brain as compared with ours.



Thus the upper and lower parts of the profile combine to give the faces of these less civilized peoples a somewhat ape-like slope, as distinguished from the more nearly upright European face.