This series is comprised of 322 titles (including 15 duplicate copies, which are not individually numbered) and contains pamphlets, reprints, brochures, leagal texts, bulletins, books, congress publications, theses, newspaper clippings and session protocols. The publications range in date from 1884 to 1955 (with greatest coverage in the 1920s and 1930s) and are written in 11 different langauges, some items having several translations. They deal with questions of prosititution, the main topics being campaigns against the state regulation of prostitution and venereal diseases.