Letter to Harvey Cushing
Letter to Daniel Coit Gilman, 1897(?)
Letter to Henri Amédée Lafleur, January 4, 1902
Letter to Henry Vining Ogden, January 23, 1902
Letter to Sir Archibald Garrod, April 8, 1902
Letter to Sir Archibald Garrod, October 14, 1902
Letter to Sir Archibald Garrod, November 26, 1902
Letter to Sir Archibald Garrod, February 20, 1902
Letter to Sir Archibald Garrod, January 23, 1902
Letter to Frederick Cheever Shattuck, January 2, 1902