29 Marx is quoting the words of Horace Walpole and the statements by the Earl of Sandwich and William Pitt the Younger mentioned below according to T. S. Hughes’ The History of England, from the Accession of George III, 1760, to the Accession of Queen Victoria, 1837 Third edition. London, 1846, Vol. 1, p. 183; Vol. If, pp. 146, 261; Vol. III, p. 124.
30 This letter was published in Diaries and Correspondence of James Harris, First Earl of Malmesbury; containing an account of his missions to the courts of Madrid, Frederick the Great, Catherine the Second, and the Hague, and his special missions to Berlin, Brunswick, and the French Republic. Edited by his grandson, the Third Earl. Vol. I, London, 1844, pp. 528-35.