Zael (Sahl ibn Bishr al-Isra'ili), Texts on astronomy
Scope & Content:
The second unit relates to and contains two texts by Zael (Sahl ibn Bishr al-Isra'ili), De interrogationibus or Liber introductorius ad astrologiam (ff. 58r-68r), and De Electionibus (ff. 68v-74r).
The fourth unit of the manuscript relates to astronomy and contains: Jean de Lignières [Jean de Picard], Canones (ff. 85r-93r); Jacob ben Machir ibn-Tibbon (Profatius Judaeus), Novus quadrans seu Practica novi Quadrantis (ff. 94r-97r); Notes relating to astronomy and the quadrant (ff. 98r-98v). Deco...
'Figurae divisionis' including notes on precious stones, birds and trees from India, Egypt, Arabia, and Africa; Title 'Incia habet lapidem', incipit: 'Carbunculum'.
An anonymous treatise on precious stones; imperfect? The text is possibly an extract from De virtutibus lapidum; incipit: 'Amethistus est lapis colorem habens ut flores viole', explicit: 'sic mollificantur / lapides preciosi ut vitrum'. The number '116' in red in upper margin of f. 105r.
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), Liber im...
Jean de Lignières [Jean de Picard], Canones; Canons for the use of the astronomical tables (an adaptation of the Alfonsine tables) drawn up by Jean de Lignières (Johannes de Lineriis) in Paris in 1321. Includes a note (f. 89r) referring to the works of John Holdrak, corrected in Holbrok in the margi...
An anonymous treatise on precious stones; imperfect?; Rubric 'Liber de virtutibus lapidum preciosorum quem scripsit Bar/lamazar [or Ga/lamazar] Thesaurarius regis Babiloniae ipso presente et / preci/piente', incipit: '[L]apidum preciosorum diversa sunt genera . et diversi colores', explicit: 'antequ...
De imaginibus super facies signorum, attributed to Claudius Ptolemaeus (Ptolemy)
Scope & Content:
De imaginibus super facies signorum attributed to Claudius Ptolemaeus, a work on engraved images which in the manuscript tradition often follows the work by Thebit. Rubric 'Opus Omaga/rum secundum / consilium ptolomeum [sic] et / est omnibus modis propior / et veracior in probatione quoniam eius / e...