Letter, 22 January 1879
Letter, 13 January 1880
Letter, 27 December 1880
Letter, 12 February 1881
Letter, 13 March 1885
Letter, 13 March 1885
Letter, 10 June 1885
Letter, 10 June 1885
Letter, 15 October 1886
Letter, 18 January 1887
Letter, 4 July 1887
Letter, 3 August 1889