Comprising Facts, Illustrative of the Causes of the Late War, and of the Influence of Christian Missions : in a Letter to T. Fowell Buxton, Esq., M.P., Chairman of the Aborigines Committee, &c. &c. &c. Supported by References to Evidence, Adduced Before that Committee, Preparatory to Some Legislative Enactment, Protective of the Aborigines Bordering Upon British Colonies