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First Edition (Smith, Elder & Co.) January 1887 



Second Edition .... May 1888 



Thhid Edition .... March 1892 



Fourth Edition .... May 1895 



Fifth Edition .... January 1899 



Sixth Edition .... September 1905 



Seventh Edition .... January 1912 



Reprinted . . . . April 1916 



Eighth Edition (John Murray) . May 1918 



Ninth Edition .... February 1920 



[All rights reserved] 



