Anti-slavery and Aborigines Protection Society, Casement, R., & Harris, J. H. (1910). Letter from John H. Harris of the Anti-Slavery and Aborigines' Protection Society to Roger Casement arranging a confidential talk with various people and the committee, and also an additional meeting in order to discuss the Society's proposed visit to the Congo.

Anti-slavery and Aborigines Protection Society, et al. Letter from John H. Harris of the Anti-Slavery and Aborigines' Protection Society to Roger Casement Arranging a Confidential Talk with Various People and the Committee, and Also an Additional Meeting in Order to Discuss the Society's Proposed Visit to the Congo. 1910.