Letter, 30 March 1850
Letter to William Osler, May 22, 1913
Letter to William Osler, June 4, 1913
Letter to William Osler, July 17, 1913
Letter to Editor of the London Times, August 13, 1913
Letter to Mabel Brewster, April 22, 1914
Letter to William Osler, May 23, 1914
Letter to William Osler, March 20, 1915
Letter to Thomas Archibald (?) Malloch, July 29, 1915
Letter to Henry V. Ogden, January 26, 1916