Small 8vo. Vol I: 224 pp., 16 pp., of adverts, from Collection Armand Colin series No 227, Paris, 1939 / Vol II: 223 pp, [1], from Collection Armand Colin series No 126, Paris, 1957 / Vol III: 191 pp., [1], frontis plate, numerous b/w plates in & hors text, biblio, Maitres Spirituels aux Editions du Soleil, Paris, 1956, modern half-calf with marbled boards, publisher’s original wrappers preserved, new endpapers, blank leaves, some underlining in volume 2, otherwise set in good condition.