Letter, 22 January 1879
Letter, 13 January 1880
Letter, 27 December 1880
Letter, 12 February 1881
Copies of Fossils from P.E. Island
Letter, 16 September 1882
Letter, 10 June 1885
Letter, 10 June 1885
Letter, 13 March 1885
Letter, 13 March 1885
Letter, 12 September 1885
Notes on the geology and fossil flora of Prince Edward Island