SOME UNPUBLISHED LETTERS OF HELENA PETROVNA BLAVATSKY, WITH AN INTRODUCTION AND COMMENTARY EUGENE ROLLIN CORSON 1929
ORIENTAL MYSTICISM, A TREATISE ON THE SUFIISTIC AND UNITARIAN THEOSOPHY OF THE PERSIANS EDWARD HENRY PALMER 1867
THE SUBMERGED CONTINENTS OF ATLANTIS AND LEMURIA: THEIR HISTORY AND CIVILIZATION BEING CHAPTERS FROM THE ÂKÂSHIC RECORDS RUDOLF STEINER 1911
SOME FRUITS OF THEOSOPHY: THE ORIGINS & PURPOSE OF THE SO–CALLED OLD CATHOLIC CHURCH DISCLOSED STANLEY MORISON 1919
THE PRINCIPLES OF OCCULT HEALING; A WORKING HYPOTHESIS WHICH INCLUDES ALL CURES; STUDIES MARY WEEKS BURNETT 1916