THE PHYSICAL BASIS OF 

 fy CIVILIZATION, 



sof\ 



A REVISED VERSION OF "PSYCHIC AND 



ECONOMIC RESULTS OF MAN'S 



PHYSICAL UPRIGHTNESS" 



A Demonstration that Two Small Anatomical Modifications Deter- 

 mined Physical, Mental, Moral, Economic, Social, and 

 Political Conditions; with Appendix Notes on 

 Articulate Speech, Memory, Altruism, and 

 a Search for the Origin of Life, 

 Sex, Species, etc. 



T. W. HEINEMAN 



"There can be no alleviatlp/i.fer the Sufferings ofrnankind * 

 except in absolute veracity^o.' thought and action and in a 

 resolute facing of the world as it is, with all garment of make- 

 believe thrown off."— Thomas H. H'jx^y. , \* 



IS 



CHICAGO 



FORBES & COMPANY 

 1908 





