In Bulletin de la Societe francaise de Philosophie, January-March 1949. Brown with age, VG-Fine. In Bulletin de la Societe francaise de Philosophie, July- September 1948. Includes R. Ruyer Le Domaine Naturel du Trans-Spatial. Brown with age, VG-Fine.
Cloth spine with marbled boards.
Good, occasional foxing in text, some cover wear. 5 volume set. Maroon buckram with black spine labels. VG, leaves browned but not brittle. Near VG, minor cover wear.