Letter, 8 March 1901
Letter, 26 October 1896
Letter, 7 March 1890
Letter from R.W. Ells to B.J. Harrington, written from Ottawa. Written on Geological & Natural History Survey letterhead.
Letter, 17 January 1889
Letter, 23 December 1889
Letter, 8 January 1889
Letter, 27 January 1887
Letter, 18 January 1887
Letter, 23 November 1886