Reprint (1st work) of: Shōgakkō ni okeru saihō kyōzai to sono shidōhō / Narita Jun. Tōkyō : Nankōsha, Taishō 12 [1923]
Reprint (2nd work) of: Saihō kyōiku no shomondai / Ishida Hiro. Tōkyō : Tōyō Tosho, Shōwa 5 [1930]
Collection of reproduced manifestations originally published, 1923-1930.