1. Cairns, H.A.C. 1965.Prelude to Imperialism: British Reactions to Central African Society, 1840–9053–7.
2. Meinertzhagen, R. 1957.Kenya Diary, 1902–069–13. Edinburgh
3. Gann, L.H. and Duignan, P. 1978.The Rulers of British Africa, 1870–1914226240–43. London
4. Oliver, R. 1957.Sir Harry Johnston and the Scramble for Africa316London