7/6/23 My dear Dr. Pammel:-- This letter will introduce to you my pupil Mr. John W. Sutton. I gave him special instruction along botanical, and other nature study lines; he did the work so well that I am anxious for him to meet the one who helped and inspired me to do original work, more than any one else. Any suggestion you may give him will be greatly appreciated by me. Sincerely yours, Geo. W. Carver