- ' . COPYRIGHT 1905 BY 

 '> \ THE UNIVERSITY OF CHICAGO 



All Rights Reserved 



First Edition June 1905 



Second Edition June 1911 



Second Impression October 1911 



Third Impression October 1913 



Third Edition September 1915 



Second Impression September 1916 



Third Impression July 1919 

 Fourth Impression February igaa 



Composed and Printed By 



The University of Chicago Pre 



Chicaso. Illinois. U.S.A. 



