Physical Basis of Civilization

A Revised Version Of "Psychic And Economic Results Of Man'S Physical Uprightness." A Demonstration That Two Small Anatomical Modifications Determined Physical, ... » 

A Revised Version Of "Psychic And Economic Results Of Man'S Physical Uprightness." A Demonstration That Two Small Anatomical Modifications Determined Physical, Mental, Moral, Economic, Social, And Political Conditions «