Heinrich Daath's text on medical astrology offers a fascinating look at the use of astrology in diagnosing and treating disease and illness. At the time it was written, astrology was frequently used by physicians and others in diagnosis and treatment. Included in the book are chapters on: Anatomical Sign-Rulership Planetary Powers and Principles Biodynamic Action of Planets Crystallization of the Planets in Organic and Inorganic Life Planetary Synopsis of Typical Diseases The Sixth and Eighth Houses Gauging Planetary Strength Planetary Sympathy and Antipathy Indications of a Short Life Heinrich Daath was born on September 19, 1872, at 3:28 a.m. LMT, in London, England; his date of death is unknown. An English astrologer and writer, he was a frequent contributor to Modern Astrology. The first editions of Medical Astrology were published in the early 1900s.