Letter from John William Dawson to B.J. Harrington, written at McGill College.
Letter, 16 January 1872
Letter, 12 April 1872
Letter, 2 August 1876
Letter, 2 July 1876
Letter, 2 August 1877
Letter, May 1877
Letter, September 1878
Letter, July 1881
Letter, August 1883