Letter to Harvey Cushing, September 21, 1921
Letter, November 16, 1920
Letter, November 16, 1920
Letter to Harvey Cushing, September 27, 1921
Letter, October 18, 1910
Letter, October 18, 1910
Letter to Harvey Cushing, July 2, 1920
Letter to Harvey Cushing, September 23, 1921
Letter, October 21, 1910
Letter, October 21, 1910
Letter to Harvey Cushing, July 25, 1920
Letter to Harvey Cushing, July 29, 1922
Letter to Harvey Cushing, February 11, 1921