Download or read book The Introduction to the Science of the Judgments of the Stars written by Sahl Ibn Bishr and published by American Federation of Astr. This book was released on 2008 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sahl lived in the first half of the 9th century. His five short treatises, Introduction to Astrology, The 50 Precepts, Judgments of Questions, Elections, and The Book of Times, appear to be the principal medieval source of rules for Horary Astrology and Elections. They constitute a corpus of detailed instruction for these two branches of Astrology. James Herschel Holden, the translator, is Research Director of the American Federation of Astrologers and is especially interested in early astrological works.