PAL

Ptolemaeus Arabus et Latinus

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Florence, Biblioteca Medicea Laurenziana, Acquisti e Doni 694

s. XVIex.

Paper, 341 f. (new foliation in pencil; this foliation jumps from 189 to 200, but nothing is missing there), a single neat hand copied f. 1r-183r and 185r-245v, and three other, sloppier hands copied f. 247r-266r, 267r-272v and 275r-341v. Old foliation and catchwords show that folia are missing (or misplaced) in several places, including at least between current f. 174-175 (20 folia acc. old foliation), somewhere between f. 175 and 185 (9 folia acc. old foliation), and also between 234-235, 283-284, 340-341 and after 341. The exemplar was, apparently, already defective, for the scribe noted after the explicit of Book II (175v): ‘Ex Theone nihil aliud omnino invenitur de secundo ac tertio libro Magnae constructionis’.

Ptolemaica (single text). Blank: 113, 176r, 184v, 246, 266v, 270v, 273v-274v.

Bibl. P. O. Kristeller, Iter Italicum, V, London-Leiden, 1990, 567.

1r–⁠341v

‘Theonis Alexandrini commentarius in primum constructionis mathematicae Ptolemaei. Ad Epiphanium filium prohoemium. Frequentius admonitus ab auditoribus, Epiphani fili, ut eorum explanationem afferre quae unicuique ex Mathematica Ptolemaei constructione difficilia viderentur…’

= Theon of Alexandria, 〈Commentum in Almagesti〉 (tr. late 16th c.) (C.1.30.6)

, incomplete and chaotic. I, 1r-112v; II, 114r-184v (explicit 175v, tables 176v-183r and note by another hand 183v-184r: ‘Exposita angulorum tabula deinceps inquit…’); III, 185r-245v (beginning missing: ‘AFK sunt aequales, aequales vero sunt quoniam ipsa…’, see below 275r-); IV, 247r-254v; V, 255r-266r (end missing); confused notes on various sections of Books IV and V, 267r-273r; III, 275r-341v. Corrections and marginal notes by various hands.