Blavatsky, H. P. (Helena Petrovna).

The Secret Doctrine – The synthesis of science, religion and philosophy.

[Facsimile of the original edition from 1888]. Two Volumes (complete). Pasadena, California, Theosophical University Press, 1988. 22 cm. 676, 798 pages plus an Index which was updated in 1925. Softcover. Very good condition with only minor signs of external wear.