ROSNY L'AÎNÉ (J.H.). Les Xipéhuz Paris, Mercure de France, 1910. in-12 paperback in publisher's cover, orange half-chagrin with corners, gilt edges, uncut. Definitive edition, enriched with a L.A.S from the author, dated November 3, 1917, to his friend and publisher Léon Hennique, in which he asks for a short interview on the situation of their Academy.