Project icon: lavishly furnished initial letter with a painting of Ptolemy using an astrolab.

Ptolemaeus Arabus et Latinus

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Berlin, Staatsbibliothek Preußischer Kulturbesitz, lat. qu. 510

s. XIII1 (before 1249, cf. ‘anno domini 1249 perfecto…’ in a note added by another hand at the bottom of f. 141r).




‘Edward Langford. 1611’, followed by a note in English (f. 163v, another name, which I cannot read, occurs in the margin of the same folio); ‘Gorge (?) Langford… 1613’ (f. 167v); Libri 665; Thomas Phillipps (no. 16345); Berlin, Königliche Bibliothek, in 1896.

Parchment, IV+211 f., a single neat hand, richly decorated initials.

Mathematics and astronomy: table of contents, medieval (IIv); table of contents, medieval (IVr); Euclid, Elementa, version ‘Adelard II’ (1r-59v); Euclid, De speculis (60r-63v); Euclid, Liber de visu (63v-72v); Jordanus of Nemore (?), Demonstratio de algorismo (72v-77r); Jordanus of Nemore (?), Demonstratio de minutiis (77r-81v); Gerard of Brussels, Liber de motu (81v-88v); Archimedes, De mensura circuli (89r-90r); Johannes de Tinemue, De curvis superficiebus (90r-94v); De quadratura circuli per lunulas (94v); Theodosius, Spherica, tr. Gerard of Cremona (94v-112v); Ptolemaica (114r-175v); Jordanus of Nemore (?), De proportionibus (175v-178v); Euclid, Data (178v-191r); Ptolemaica (191r); Alfraganus, De scientia astrorum, tr. John of Seville (194r-209r). Blank: 113r-113v (except added notes f. 113v), 191v-193v.


The second table of contents (IVr) includes items which are no longer in the MS (as noted by the author of the table: ‘Omnes isti deficiunt’) between current f. 112 and 114: ‘Quedam demonstrationes de speculis et figuris. Liber de occultis (?). De compositione astrolabii universalis Pthol<omei> [= Pseudo-Ptolemy, Liber de compositione universalis astrolabii (B.14)]. De practica geometri… (?). Item de astrol<abio?> quedam demonstrationes. De ponderibus.’


M. Folkerts, ‘Mittelalterliche mathematische Handschriften in westlichen Sprachen in der Berliner Staatsbibliothek. Ein vorläufiges Verzeichnis’, in Mathematical Perspectives. Essays on Mathematics and Its Historical Development Presented to Kurt-Reinhard Biermann on the Occasion of His 60th Birthday, ed. J. W. Dauben, New York, 1981, 53-93: 71-72; M. Clagett, Archimedes in the Middles Ages, V, Philadelphia, 1984, 60-61; H. L. L. Busard, M. Folkerts, Robert of Chester’s (?) Redaction of Euclid’s Elements, the so-Called Adelard II Version, Basel-Boston-Berlin, 1992, I, 36-38; P. O. Kristeller, Iter Italicum, VI, London-Leiden, 1992, 497; H. Zepeda, The First Latin Treatise on Ptolemy’s Astronomy: The Almagesti minor (c. 1200), Turnhout, 2018, 59.


‘<O>mnium recte philosophantium verisimilibus coniecturis credibilibus tenebrarum sic se habent.’

= Almagesti minor (C.1.4). Numerous glosses by the scribe and a few later glosses.


‘<D>ixit Tholomeus: Iam scripsi tibi, Iesure, libros de hoc quod operantur stelle in hoc seculo — in suo tempore. Ideo dixit: Ex te et illis. Alia enim via est…’

= Pseudo-Ptolemy, Centiloquium (tr. Plato of Tivoli) (B.1.2), v. 1, incomplete (14 lines ending mid-sentence, the rest of f. 191r and f. 191v-193v are blank). No glosses.