Roger Caillois
From 1937 to 1939, Mayer was a member of the Collège de Sociologie, founded by Georges Bataille, Michel Leiris and Roger Caillois in 1937. There he held a lecture about the secret political societies in German Romanticism and demonstrated how these secret societies already anticipated Nazi symbolism. Other exiles at the Collège were Walter Benjamin and Paul L. Landsberg.