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-98...
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 ...
Jacob ben Machir ibn-Tibbon (Profatius Judaeus), Novus quadrans seu Practica novi Quadrantis
Scope & Content:
Jacob ben Machir ibn-Tibbon (Profatius Judaeus), Novus quadrans seu Practica novi Quadrantis; composed in 1288, corrected in 1301. The Latin version of a treatise on the canons of a new quadrant by Jacob ben Machir ibn-Tibbon (1236-1305), a Jewish scholar and astronomer of Marseilles and Montpel...
Texts on alchemy, theology, birds and trees, and the making of talismans
Scope & Content:
The fifth unit of the manuscript relates to alchemy and consists of treatises relating to alchemy, theology, birds and trees, and the making of talismans: Marbodus Redonensis, Liber lapidum seu de Gemmis (ff. 99r-101v); 'Figurae divisionis' (f. 102v); Anonymous treatise on precious stones (f...
'Figurae divisionis' including notes on precious stones, birds and trees from India, Egypt, Arabia, and Africa; Title 'Incia habet lapidem', incipit: 'Carbunculum'.
Marbodus Redonensis, Liber lapidum seu de Gemmis. A treatise relating to the properties of sixty-two stones written in verse by Marbod (1035-1123), bishop of Rennes, poet and writer, who made large use of material found in a 5th- or 6th-century Latin translation by Damigeron of a previous work i...
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: 'an...
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.