The third unit of the manuscript relating to astronomy and to the making of talismans includes: Thebit ben Corat (Thabit bin Qurra) De imaginibus (ff. 75r-76r); De imaginibus super facies signorum, attributed to Claudius Ptolemaeus (Ptolemy) (ff. 76r-77v); Hermes, Trismegistus (or Belenus), L...