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Palermo, Convento di San Francesco, 4

Date:

s. XV¹ (1427, cf. f. 3r).

Or.:

copied by Laurentius de Messasal, bishop of Agrigento (Sicily) from 1422 to 1442 (cf. note in the hand of the scribe at the bottom of f. 3r: ‘Exemplum… hoc feci ego Laurencius episcopus Agrigentius anno domini MCCCCXXVII…’). The same Laurentius de Messasal glossed the Almagest in MS Vatican, BAV, Vat. lat. 6788 (see).

Paper, 10 f., a single hand.

Mathematics and astronomy: Nicole Oresme, Algorismus proportionum, prologue of the first part (1r-7v); Ptolemaica (7v-10r); enigma (10v).

Bibl. La biblioteca francescana di Palermo, ed. D. Ciccarelli, Palermo, 1995, 163-164 (not seen); S. Crimi, ‘L’Algorismus proportionum di Nicola d’Oresme et i Flores Almagesti di Geber: un testimone palermitano’, Medieval Sophia. Studi e Ricerche sui Saperi Medievali 18 (gennaio-dicembre 2016), 215-224: 215-216 and passim.

7v–⁠10r	‘Incipiunt 25^m theorema primi Gibi (!) super Almagesti. Et cum iam hoc ostensum sit incipiamus ostendere semitam qua quod de lateribus trianguli rectilinei et angulis… (8r) Glosa: Hic incipit ostendere Geber per tria nota — voluimus demonstrare. Glosa: Quoniam omnis trianguli — illos angulos etc. que habetur in primo Almagesti.’ = Geber, Liber super Almagesti (C.1.2) , last chapters of Book I (numbered 24-26 in ed. 1534, here numbered 25-28 in the margin), with short ‘glose’ inserted into the text. No further glosses. See Lyon, BM, 328, f. 78v-79r.

7v–⁠10r

‘Incipiunt 25^m theorema primi Gibi (!) super Almagesti. Et cum iam hoc ostensum sit incipiamus ostendere semitam qua quod de lateribus trianguli rectilinei et angulis… (8r) Glosa: Hic incipit ostendere Geber per tria nota — voluimus demonstrare. Glosa: Quoniam omnis trianguli — illos angulos etc. que habetur in primo Almagesti.’

= Geber, Liber super Almagesti (C.1.2)

, last chapters of Book I (numbered 24-26 in ed. 1534, here numbered 25-28 in the margin), with short ‘glose’ inserted into the text. No further glosses. See Lyon, BM, 328, f. 78v-79r.