Mundane Astrology, Political Astrology, and Predictive Astrology. This archival document is an introductory reference guide titled “MUNDANE ASTROLOGY” by Marion D. March. March details the principles and interpretive rules of political and mundane astrology, which applies astrological symbolism to nations, cities, and mass populations rather than individuals. She outlines key predictive timing frameworks, including Solar and Lunar eclipses, Lunations, and Solar Ingresses—highlighting the Capricorn Ingress as particularly critical for world governments and international relations. The text provides extensive, specialized mundane definitions for all twelve astrological houses, the ten primary planetary bodies, and the twelve zodiac signs. March categorizes their specific applications across political structures, economic indicators, societal movements, agricultural conditions, international diplomacy, labor relations, intelligence agencies, and meteorological phenomena.