Letter, 23 December 1875
Copy of letter, 29 October 1884
Copy of letter, 11 December 1888
Copy of letter, 21 April 1882
Copy of letter, 26 November 1888
Memo, 5 December 1887
Copy of letter, 20 November 1888
Copy of letter, 15 April 1882
Copy of letter, 13 November 1889
Copy of letter, 18 April 1884