UNIVERSITY OF VIRGINIA PUBLICATIONS 



BULLETIN 



PHILOSOPHICAL SOCIETY 



Scientific Series, Vol. I, No. 13. pp. 319-.330, .January, 1918 



The Evolutionary Construction of the Imag^inary 



Po^ver of a ISTumber and its Expression 



as the Exponential Function 



BY 



WILLIAM H. ECHOLS 



T^MVEKSITY OF VIRGINIA 

 Charlottesville, Vircrinia. V. s. A. 



