In copyright
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Credit
Knabenfreundschaften / von Ludwig Gurlitt. Ethik des Geschlechtslebens / von Ernst Baars. Sexualforschung in Spanien / von Hermann Rohleder. Rundschau. Kritiken und Referate. Bibliographie. Über Vorträge, Vereine und Versammlungen. In copyright. Source: Wellcome Collection.