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
Letter to C.N.B. Camac, March 1902
Letter to John George Adami, February 20, 1902
Letter to F.T. Gates, March 5, 1902
Letter to Mr. President, March 8, 1902
Letter to W.H. Howell, April 22, 1902