Letter, 25 February 1871
Letter, 30 September 1871
Letter, 28 October 1871
Letter, 2 January 1885
Letter, 2 January 1885
Letter, 6 November 1885
Letter, 6 November 1885
Letter, 22 December 1885
Letter, 22 December 1885
Letter, 24 March 1887
Letter, 21 June 1887
Letter, 24 September 1887
Letter, 23 October 1887