TYPED NOTE SIGNED (TNS). 1/3 page, dated 15 September 1968, to John Buchanan, half sheet, plain laid paper. Briefly answers three questions, including one apparently asking what has contributed most to world peace, to which he replies "The H-Bomb ... No person, but a Thing has prevented our destroying ourselves ..." About 80 words. Faint mailing fold, fine. (#129099).