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
Letter to W.H. Howell, January 13, 1902
Letter to Sir Archibald Garrod, December 18, 1903
Letter to George Dock, April 5, 1902
Letter to Joseph Hersey Pratt, May 9, 1902
Letter to John George Adami, June 4, 1902
Letter to John H. Musser, June 8, 1902