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CHAPTER V. 



PURITY OF RACE. 



WE have hitherto dealt with the Specific 

 life-force of each race as an unity, but it is 

 actually dual male and female at least in 

 the higher organisms. 



It cannot with confidence be affirmed 

 that either sex has a preponderating influ- 

 ence in reproduction, or, excepting the 

 sexual organisation, in forming any par- 

 ticular organs or in determining character 

 or disposition in the progeny ; for some- 

 times the progeny take after the male, 

 sometimes after the female, and again, like- 

 ness to an ancestor more or less remote 

 may predominate. 



Further, the progeny may in physique 

 resemble the one parent, and in character 

 and disposition the other. Physique and 

 character are thus not indissolubly com- 

 bined in Specific life- force. 



These variations in the respective influ- 



