COPYRIGHT 1901, 1905, 1915, 1924, AND 1932 BY THE UNIVERSITY 

 OF CHICAGO. ALL RIGHTS RESERVED. PUBLISHED JUNE 1901 

 SECOND EDITION OCTOBER 1905, THIRD EDITION MAY 1915 

 FOURTH EDITION OCTOBER 1924, FIFTH EDITION AUGUST 1932 

 SECOND IMPRESSION OCTOBER 1933 



COMPOSED AND PRINTED BY THE UNIVERSITY OF CHICAGO PRESS 

 CHICAGO, ILLINOIS, U.S.A. 



