Letter, 28 March 1900
Letter to William Osler, February 23, 1900
Letter to Edward A. Sharpey Schäfer, February 26, 1900
Letter to William Osler, March 2, 1900
Letter to William Osler, March 22, 1900
Letter to William Osler, April 1, 1900
Letter, 8 January 1900
Letter to William Osler, February 6, 1900
Letter to William Osler, February 20, 1900
Letter to William Osler, March 28, 1900