A magnificent collection of astrological texts from the library of Georg Joachim Rheticus, with three lines of annotations in his hand and other marks by him. Volume 1) Second edition (first 1504) of "this important Latin translation of the lost Arabic original of this exposition of apparently Harranian doctrines" (David Pingree in DSB). The work also as De scientismotus orbis, and De sphaera mota. It contains a study of Aristole's Physics and an introduction to astronomy, both based on Syriac sources. Masha 'Allah's was one of the astrologers who participated in the deliberations which led to the founding of Baghdad. Volume 2) Second edition. Volume 3) FIRST EDITION John of Saville was renowned as a translator of astrological works from Arabic into Latins. In 1124 A.D. he compiled his own Epitome of the Art of Astrology, consisting of an introduction and four books of judgements. Volume 4) The first edition of Camerarius's translation (lacking the Greek text). It is in this work that we find the annotations of Rheticus (authenticated by Karl Heinz Burmeister).