Letter to William Osler, July 6, 1874
Letter from Robert Palmer Howard, April 1, 1872
Letter from Robert Palmer Howard, April 1, 1871
Letter to William Osler, October 25, 1872
Letter to William Osler, October 6, 1972
Letter to William Osler, August 24, 1885(?)
Letter to William Osler, August 24, 1885