Who wrote the mahatma letters? : The first thorough examination of the communications alleged to have been received by the late A.P. Sinnett from Tibetan mahatmas

The Holy Kabbalah : A study of the secret tradition in Israel as unfolded by sons of the doctrine for the benefit and consolation of the Elect dispersed through the hand of Ages of the greater exile

The lost language of Symbolism : An inquiry into the origin of certain letters, words, names, fairy tales, folklore and mythologiesVol. I

The lost language of Symbolism : An inquiry into the origin of certain letters, words, names, fairy tales, folklore and mythologiesVol. II