•
Coolie Labour in the British Crown Colonies and Protectorates – Edward Hughes & Co, London 1910 •
Domestic Slavery in Southern Nigeria – Anti-Slavery and Aborigines Protection Society, London 1911 •
Dawn in Darkest Africa – Smith, Elder & Co, London 1912 •
Present Conditions in the Congo – Anti-Slavery and Aborigines Protection Society, London 1912 •
Portuguese Slavery, Britain’s Dilemma – Methuen & Co, London 1913 •
Germany’s Lost Colonial Empire – Simpkin, Marshall, Hamilton, London 1917 •
The Greatest Land Case in British History: The Struggle for Native Rights in Rhodesia before the Judicial Committee of His Majesty’s Privy Council – Anti-Slavery and Aborigines Protection Society, London 1918 •
Africa – Slave or Free? – Student Christian Movement; 1919 •
The Fight for Vegetable Oils: The right of native races to sell their produce – Anti-Slavery and Aborigines Protection Society, London 1919 •
The Chartered Millions: Rhodesia and the Challenge to the British Commonwealth – Swarthmore Press, London 1920 •
The Mandatory System after Five Years Working – Anti-Slavery and Aborigines Protection Society, London 1925 •
Slavery or Sacred Trust – Williams & Norgate, London 1926 •
Freeing the Slaves – Anti-Slavery and Aborigines Protection Society, London 1926 •
A Century of Emancipation – J M Dent & Sons, London 1933 Harris's unpublished autobiography can be found at the
Oxford University Colonial Records Project, ref: MSS. Brit. Emp. s. 353. ==References==