COPYRIGHT, 1906, BY P. BLAKISTON'S SON & Co. 



PRINTED, 1906. 

 REPRINTED, 1907, 1909, 1910, 1911. 



SECOND EDITION. 

 COPYRIGHT, 1912, BY P. BLAKISTON'S SON & Co. 



PRINTED, 1912. 



REPRINTED WITH CORRECTIONS, 1913. 

 REPRINTED SEPTEMBER, 1913. 



THIRD EDITION. 

 COPYRIGHT, 1914, BY P. BLAKISTON'S SON & Co. 



PRINTED, 1914. 

 REPRINTED WITH CORRECTIONS, OCTOBER, 1914. 



REPRINTED. 

 FOURTH EDITION. 



COPYRIGHT, 1916, BY P. BLAKISTON'S SON & Co. 

 PRINTED, 1916. 



THE. MAPLE- PRESS. .YORK. PA 



