First posthumous edition, one of 20 numbered copies on Holland paper, the only deluxe copies. Bradel binding in full brick-red percale, smooth spine decorated with gilt floral motif, double gilt fillet at foot, black shagreen title-label, original wrappers preserved, bookplate pasted on pastedown, contemporary binding. Handsome copy despite some minor stains on boards. Deferential and beautiful autograph inscription signed by Georges Clarétie, the author's son, to Raymond Poincaré: "... en souvenir de son père qui aimait tant vous rencontrer à ces dîners dont vous étiez pour lui un des charmes." (in memory of his father who so loved to meet you at those dinners where you were for him one of the charms.)