Letter, 11 September 1877
Letter, 6 June 1882
Letter, 2 January 1885
Letter, 2 January 1885
Letter, 19 August 1881
Letter, 6 January 1882
Letter, 17 February 1882
Letter, 19 June 1886
Letter, 5 October 1886
Letter, 11 October 1886
Letter, 24 March 1887