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