Letter to William Osler
Letter to John S. Billings
Letter to John S. Billings
Letter to Harvey Cushing, April 20, 1921
Letter to Harvey Cushing, July 7, 1921
Letter to Harvey Cushing, July 22, 1921
Letter to Harvey Cushing, November 24, 1924
Letter to Harvey Cushing, June 26, 1920
Letter to Harvey Cushing, June 30, 1920
Letter to Harvey Cushing, June 22, 1920