This is the ninth part of the facsimile reprint series of the leading English newspaper published in Yokohama throughout the Meiji era. It represents a complete collection, provided by the Yokohama Archives of History and other institutions. Playing an important role for Meiji Japan's exchange with western society, the journal contains articles on politics, commerce, and economics, and also on the cultural activities of early Japanologists and the Asiatic Society of Japan. Contributors include George Aston, Ernest Satow, Basil Hall Chamberlain, F. V. Dickins, Henry Dyer, William Anderson, Lafcadio Hearn and many others. It is an indispensable primary source for any scholar of Modern Japan.

The Japan Weekly Mail published during this period is in particular important for its coverage of Japanese foreign activities following the Anglo-Japanese Treaty. The collection is a vital primary source for all scholars and students seeking to make sense of Japan's military movements in the early twentieth century.