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André Couvreur. The Exploits of Professor Tornada, Volume 2: The Phosphorescent Waltzer: The Memoirs of an Immortal (Encino, California: Black Coat Press, 2014) [coll: trans by Brian Stableford of "Le Valser Phosphorescent" (December 1923 Oeuvres Libres) and "Les Mémoires d'un Immortel" (December 1924 Oeuvres Libres): Professor Tornada: pb/Mandy]
Image courtesy of Clute Science Fiction Library at Telluride