First published in 1647, as <i>&quot;Christian Astrology&quot;</i>, this is one of the best known post-classical works on Astrology. the present edition, heavily edited by &#39;Zadkiel,&#39; was released under the current title &quot;An Introduction to Astrology&quot; in 1852. As the planet Uranus (&#39;Hershel&#39;), discovered in 1781, is mentioned throughout, and Neptune, discovered in 1846, is not, we can bracket the date of composition of the revised edition to the mid-19th century.<br /><br />Horary Astrology, the subject of this book, interprets planetary positions to answer a wide range of questions, from lost dogs and stolen fish, to the death of kings. While there is a basic repertoire of interpretations, (e.g., Saturn bad, Venus good), the horoscope is used as a jumping off point for the astrologer&#39;s intuition.<br /><br />And Lilly apparently had spectacularly good intuition. His famous prediction of the London fire of 1666 was so accurate that he was suspected of starting it, a charge he was later acquitted of. Lilly also used Astrology in medical practice and this book discusses the use of horoscopes in diagnosing diseases, determining whether a patient will die or get better, and so on.<br /><br />Zadkiel was apparently the pseudonym of Richard James Morrison (1795-1874).&nbsp;<br /><br />(<i>Source: sacred-texts.com</i>)