Blavatsky, Helena Petrovna (1831-1891) Isis unveiled a master-key to the mysteries of ancient and modern science and theology. Vol. I, Science / [Texte imprimé] : H. P. Blavatsky,... - Pasadena: Theosophical University Press, 1976 - 1 vol. (XIV-628 p.) ; 22 cm Notes bibliogr. Dewey Class. No.: 205