210 SOCIAL EVOLUTION 



and red, it gives an admirable distribution geographic- 

 ally, and besides this, gives a correlation between head 

 form and hair form. If now, we substitute Professor 

 Giddings' nomenclature for the popular terms black, 

 white, and yellow, the system of racial classification as- 



Cimes the following form: 

 /. The Australian-Afiican Group. 



Characteristics: black skin, dolichocephalic, 

 prognathic, woolly or frizzly-haired (cross- 

 section of hair very elliptical) J 

 Area of distribution: Austraha and Africa 

 south of the equatorJ 

 in. The Poli/nesian-European Uronp. 



Characteristics: fair skin, mesocephalic orthog- 

 nathic, straight or wavy hair (cross-section 

 slightly elliptical). 

 Area of distribution : broad zone from Polynesia 

 north westward through southwestern Asia 

 and northern Africa and most of the con- 

 ^ tinent of Europe) 



k in. The Asian-American Group. 



Characteristics: yellow or red skin, brachy- 

 cephalic, narrow-eyed, lank or straight- 

 haired (cylindrical in cross-section). 

 Area of distribution: eastern Asia and western 

 America, chiefly north of the equator along 

 the semjj^ircular shore-line of Asia and 

 Americay 



This hypothesis^agrees with the conditions which were 

 first laid down. (The Polynesian-European group oc- 

 cupies at the present time that zone of territory which 



7 See figure G-1. 



