 His first scholarly publication was in 1886, in the Revue Philosophique; “On Unconscious Simulation in States of Hypnosis” concerns the results of his observations at sessions of hypnosis. Notice that Freud and Breuer’s Studies on Hysteria did not appear until 1896. This foreshadowed Bergson’s growing interest in the role of unconscious memories within recognition—an interest that culminates in his being elected president of the London based Society for Psychical Research in 1913. In 1888, Bergson submitted two doctoral theses in Paris: Essai sur les données immédiates de la conscience, published as a book (Time and Free Will) in 1889; and the then required Latin thesis, Quid Aristoteles de loco senserit (Aristotle’s Conception of Place). In 1927, in a footnote to Being and Time, Heidegger cited this second thesis, claiming that Bergson’s view of time remains within the horizon of Greek metaphysics.