Thomas Fowell Buxton. The African Slave Trade and its Remedy. London, 1840.
John Elliot Cairnes. The Slave Power: its Character, Career, and Probable Designs. London, 1862.
Henry C. Carey. The Slave Trade, Domestic and Foreign: why it Exists and how it may be Extinguished. Philadelphia, 1853.
[Lewis Cass]. An Examination of the Question, now in Discussion, ... concerning the Right of Search. By an American. [Philadelphia, 1842.]
William Ellery Channing. The Duty of the Free States, or Remarks suggested by the case of the Creole. Boston, 1842.
David Christy. Ethiopia, her Gloom and Glory, as illustrated in the History of the Slave Trade, etc. (1442–1857.) Cincinnati, 1857.
Rufus W. Clark. The African Slave Trade. Boston, [1860.]
Thomas Clarkson. An Essay on the Comparative Efficiency of Regulation or Abolition, as applied to the Slave Trade. Shewing that the latter only can remove the evils to be found in that commerce. London, 1789.
——. An Essay on the Impolicy of the African Slave Trade. In two parts. Second edition. London, 1788.
——. An Essay on the Slavery and Commerce of the Human Species, particularly the African. London and Dublin, 1786.