Note: Early volumes in the series advertised twelve titles:
Boston, St. Petersburg, Pekin, Berlin, Rome, Venice,* London,*
Paris,* Moscow, Zurich, Rio Janeiro,* Washington.* The five titles
here marked with an asterisk were never published; one title not
included in the ads -- New York -- was added as the final volume.
More information about the series' publishing history and formats can be found at Cary Sternick's Thoughts of Bibliomaven entry for the series