Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Mr. Perez Simmons, Scientific Assistant of the U. S. Department of Agriculture; Bureau of Entomology, Washington, D.C. Informs Mr. Perez Simmons that he is forwarding him copies of all the Reports and Memorandas published by the Grain Pests (War) Committee under separate cover. Notes that No. 1 and No. 5. of the Memorandas are out of print, and that No. 9 of the Reports has not yet been issued. 15 April 1921