1. The Victorians and Africa: A Reconsideration of the Occupation of Egypt, 1882
2. Eugenio F. Biagini, Liberty, Retrenchment and Reform (Cambridge , 1992), pp. 405, 409.
3. K. Theodore Hoppen, The Mid-Victorian Generation 1846-1886 (Oxford , 1998), p. 635.
4. W. E. Gladstone Mp, Political Speeches in Scotland (London, 1879), pp. 36, 49, 63, 92, 94.