Letter to Harvey Cushing
Letter to Francis R. Packard, August 19, 1903
Letter to Lawrason Brown, July 23, 1901
Letter to William Osler, April 29, 1911
Letter to Henry Barton Jacobs, April 4, 1912
Letter to William Osler, April 27, 1911
Letter to William Osler, March 29, 1902
Letter to William Osler, April 22, 1893
Letter to Charles Daniel Parfitt, October 10, 1910
Letter to Henry Vining Ogden, June 8, 1899