April 16, 1904 Dr. L. H. Pammel, Ames, Iowa. I have your favor of the 13th asking for leaves of the Genus Pinus, especially Pinus Teada and P. Palustris. I shall start some of these leaves to you next week, hoping they will reach you safely. I am very thankful for your kindly words with reference to the little Teachers Leaflet. I shall be very glad if I can see the notice to which you refer in the Register. Yours very truly, G.W. Carver Director of Agriculture