by Ernst Mach (Author), Thomas J. McCormack (Translator)

An Unabridged, Unaltered Edition To Include The Following Three Articles: On Physiological, As Distinguished From Geometrical, Space - On The Psychology And Natural Development Of Geometry - Space And Geometry From The Point Of View Of Physical Inquiry. Plus All Original Footnotes And Comprehensive Index From The 1906 Translation By T. J. McCormack.