April 17, 1920 Dr. L. H. Pammel, Iowa State College, Dept of Botany, Ames, Iowa. My dear Dr. Pammel:-- How delighted I was to get your good letter, and am glad to know you received the specimens of Fungi. When I find other things of interest, I shall take pleasure in sending them to you. I shall very much appreciate anything that you send me, and especially that penned by yourself. With kindest regards to Mrs. Pammel, I am, Yours very truly, G. W. Carver Director Dept of Research & Experiment Station