TTTR oramx and axttqutty of ^iax 40 



hi comiiioii with otlici' Jiniiiiiils "iiicii ot'tni fnil in 1li<' 

 struggle for existence, beeomo submerged ami disappear." 

 Natural selection operates among mankind to extermin- 

 ate the unfit and to preserve the better adapted individ- 

 uals who transmit to their children the characteristics 



I I in U mm 111 I 1 I 1 1 I I 



I i( I KL IJ I'oitiait of I \ouiig Malo Child Photographed from 

 life, when tlie inohilo feet were for a sliort time at rest in a 



])ositiiiH (juitc ;t]iclii<i'. 



wliich gave them advantage. Sexual selection is prob- 

 al»ly more operative in man than in any other animal 

 species. Among men, especially civilized men, choice 

 in marriage has come to be based less upon the physical 

 attractions wliicli a])])eal to the lower animals, and more 

 largely upon intellectual and moral attractions. Sexual 

 selection thus serves to increase and perpetuate these 

 highly important characteristics.'^^ 



12-nJlid., p. 171. 



