

COPYRIGHT, igi4. BY J. B. LIPPINCOTT COMPANY 

 COPYRIGHT, 1915, BY J. B. LIPPINCOTT COMPANY 

 COPYRIGHT, 1916, BY J. B. LIPPINCOTT COMPANY 

 COPYRIGHT, 1917, BY J. B. LIPPINCOTT COMPANY 

 COPYRIGHT, 1920, BY J. B. LIPPINCOTT COMPANY 



PUBLISHED NOVEMBER, 1914 

 SECOND EDITION, APRIL, 1915 

 THIRD EDITION, JANUARY, 1916 

 rOURTH EDITION, SEPTEMBER, 1917 

 FIFTH EDITION, MARCH, 1920 



PRINTED BY J. B. LIPPINCOTT COMPANY 



AT THE WASHINGTON SQUARE PRESS 



PHILADELPHL^, U. S. A. 



