1931. Being a philosophical deduction of astrological principles and a sequence to "Natural Philosophy." This work is is intended to help students to See and encourage them down the path to knowledge, in spiritual as well as in human and physical matters. Contents: world of Noumena; world of phenomena; the physical plane; solar system; the moon; zodiac in cyclic evolution; human horoscope; aspects; progressions and transits; symbols; zodiacal characterology. Richly illustrated.