# Urbino, Biblioteca Universitaria, Fondo del Comune – Busta 120 (28)

s. XVI^{2} (probably shortly before 1558 and 1562, when Commandino published Ptolemy’s *Planispherium* and *Analemma*, together with his commentaries on these texts).

**Or.:**

Federico Commandino’s collected papers.

Paper, 391 f. (modern foliation), partially unbound and divided among three ‘fascicoli’ or ‘cartelle’ (I: f. 1-139, II: f. 140-245; III: f. 246-391), several hands, including perhaps that of Commandino for f. 174-175 and 226-244, and that of his secretary for f. 150-165 and 214-223 (see Kristeller).

Mathematics and astronomy (Fascicolo II): ** Ptolemaica (150r-165r, 166r-173v, 174r-175r, 198r-207v, 214r-223v and 226r-244r)**, interspersed with notes and fragmentary texts (140r-149r, 176r-197v and 208r-213v), some of which may be related to the

*Ptolemaica*. Blank: 149v, 165v, 224r-225v, 244v-245v. Fascicoli I and III contain various works of geometry and logic, including by Euclid, Archimedes and Aristotle, together with Commandino’s notes and commentaries.

## Lit.

G. Moranti, *Inventari dei manoscritti delle biblioteche d’Italia*, LXXX, Firenze, 1954, 170 (‘Busta 28’); P. O. Kristeller, *Iter Italicum*, VI, London-Leiden, 1992, 249.

150r‑165r |
‘Federici Commandini Urbinati in Planisphaerium Ptolemaei commentarius. Figuram visam quemadmodum appareat in proposito plano describere — (157v) aliud quodvis corpus. (158r) Cum sit possibile, o Syre, etc. Principio docet Ptolemaeus dato aequinoctiali circulo in plano proposito — pariter fecamus, unde stellarum loca certissima ratione deprehenduntur.’ = Federico Commandino, Commentary on Ptolemy's Planispherium (C.4.4)
. A few marginal notes possibly by the scribe. |
---|---|

166r‑173v |
‘Claudii Ptolemaei sphaerae aplanetis proiectio in planum. Cum sit possibile, o Syre, et plurimum necessarium ut in plano repraesententur circuli in spheram corpoream incidentes — quos in 4 rectis angulis numeramus 360, habebit angulus ecy gradus 8 <puncta>…’ = Ptolemy, Planispherium (tr. Hermann of Carinthia) (A.6.1)
, Class I. Abrupt end at the bottom of f. 173v, several folia are missing, as confirmed by the catchword ‘punc<ta>’. No glosses. A couple of corrections by the scribe f. 169r. |

174r‑175r |
‘Figuram visam quemadmodum appareat in proposito plano describere — aliud quodvis corpus.’ = Federico Commandino, Commentary on Ptolemy's Planispherium (C.4.4)
, excerpts (?) from the first part (f. 150r-157v above), with numerous corrections by the scribe. |

198r‑207v |
‘Assiduis auditorum exortationibus impulsus Epiphani fili ad ea illustranda quae in Mathematica Ptolaemei… (202r) Cap. 1: De ordine theorematum — ae aequales et az et dupla <ut ae>…’ = Theon of Alexandria, Commentary on the Almagest (tr. Federico Commandino) (C.1.31.3)
. Theon’s preface, 198r-201v; Book I, 202r-207v, beginning only, due to missing folia (cf. catchwords ‘ut ae’). |

214r‑223v |
‘Cl<audius> Ptolemeus Syro S. D. (?). Consideranti mihi, Syre, angulorum acceptorum circa gnomonem qui rationi consentanei essent — horarii ad verticalem et descensivi ad horizontem. Cancres (?) autem hoc modo se habent.’ = Ptolemy, Liber de analemmate (tr. William of Moerbeke) (A.5.1)
, with variants. Numerous corrections by the scribe. |

226r‑244r |
‘Antiquos mathematicos de gnomonicis rationibus conscripsisse ex Vitruvio, Ptolemaeoque satis constat, quorum inventis cum Ptolemaeus non nulla addidisset — ab ipso analemmate exordium capientes.’ = Federico Commandino, Commentary on Ptolemy's Liber de analemmate (C.4.2)
. Corrections by the scribe. |