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THE RACES OF MANKIND.
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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.
![](http://upload.wikimedia.org/wikipedia/commons/thumb/d/d4/PSM_V19_D307_Female_portraits_of_various_races.jpg/372px-PSM_V19_D307_Female_portraits_of_various_races.jpg)
Fig. 5.—Female Portraits. a, Negro (W. Africa); b, Barolong (S. Africa); c, Hottentot; d, Gilyak (N. Asia); e, Japanese; f, Colorado Indian (N. America); g, English.
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.