The Art & Artifices of De Sphaera Mundi
A very popular early 13th Century treatise on astronomy and astrology, by Johannes de Sacrobosco. Very popular in medieval Universities where it was used for teaching the fundamentals of astronomy. Based largely on Ptolemy’s Almagast, it incorporated more detailed astronomical and astrological ideas derived from Al Kindi, AL Jabir, Avicenna and other Muslim auctores. The …