Letter, 4 December 1870
Letter, July 1881
Letter from Robt.C. Adams to B.J. Harrington, written from Montreal.
Letter, 10 October 1883
Letter, 1 June 1894
Letter from S.E. Dawson to B.J. Harrington, written from Montreal.
Letter from C.W. Wilson to B.J. Harrington, written from Mcgill College.
Letter, 3 July 1885
Letter from R. C. Adams to B.J. Harrington requesting report for Preston Property.
Letter from T.J. Darcy, corresponding secretary of the Natural History Society of Montreal, to B.J. Harrington.