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Milan, Biblioteca Ambrosiana, H. 75 sup.

Date:

s. XIII^ex-XIVⁱⁿ (after 1284: the MS is generally dated to 1284, but the colophon f. 73ra refers to the date of composition – not of copy – of Franco de Polonia’s Tractatus de turketo: ‘Factum anno domini 1284, secunda die Iulii, in die dominica, Sole existente in 17^o gradu Cancri, Luna 20^o gradu Aquarii, Saturno 20 Capricorni, Iove 21 Sagittarii, Marte 13 Virginis, Venere 18 Leonis, Mercurio 28 Gemini, Capite 12 Capricorni, ante meridiem inceptum. Explicit’).

Prov.:

Gian Vincenzo Pinelli (1535-1601), whose library was purchased by the Biblioteca Ambrosiana in 1608-1609.

Parchment, I+73 f., a single neat hand, decorated initials.

Astronomy: two tables of contents, one late medieval or early modern and the other by Antonio Olgiati in 1609 (Ir); Sacrobosco, Algorismus (1ra-6ra); Sacrobosco, De sphera (6ra-15vb); Sacrobosco, Computus (16ra-34ra); Pseudo-Messahallah, De compositione astrolabii (34ra-51vb); Robertus Anglicus, Quadrans vetus, attr. ‘magister Iohannes de Monte Pesulano’ (52ra-56vb), with solar tables (56v-58v); Theorica planetarum Gerardi (59ra-64va); Franco de Polonia, Tractatus de turketo (65ra-66vb); Ptolemaica (67ra-68rb); ‘De compositione instrumenti per quod habetur verus motus planetarum. Fiat columpna et locetur in congrua basi…’ (68rb-69ra); ‘De utilitatibus chilindri. Accepturus horas cum chilindro…’ (69ra); Franco de Polonia, Tractatus de turketo (70ra-73ra). Blank: Iv, 69v, 73v.

Bibl. P. Revelli, I codici Ambrosiani di contenuto geografico, Milano, 1929, 88 (no. 210); A. Rivolta, Catalogo dei codici Pinelliani dell’Ambrosiana, Milano, 1933, 24-25 (no. 47); R. Cipriani, Codici miniati dell’Ambrosiana. Contributo a un catalogo, Vicenza, 1968, 63; A. L. Gabriel, A Summary Catalogue of Microfilms of One Thousand Scientific Manuscripts in the Ambrosiana Library, Milan, Notre Dame, 1968, 245 (no. 575); J. Agrimi, Tecnica e scienza nella cultura medievale. Inventario dei manoscritti relativi alla scienza e alla tecnica medievale (secc. XI-XV). Biblioteche di Lombardia, Firenze, 1976, 92-94 (no. CXIV); Inventario Ceruti dei manoscritti della Biblioteca Ambrosiana, ed. A. Paredi, III, Trezzano, 1977, 631-632; D. Cantele, ‘I codici illustrati di Giovanno Sacrobosco’, in Nuove ricerche su codici in scrittura latina dell’Ambrosiana. Atti del Convegno Milano, 6-7 ottobre 2005, eds M. Ferrari, M. Navoni, Milano, 2007, 317-330: 324-327; H. Zepeda, The First Latin Treatise on Ptolemy’s Astronomy: The Almagesti minor (c. 1200), Turnhout, 2018, 71.

67ra–⁠68rb	‘Incipit tractatus de compositione armillarum. Queruntur primo due armille convenientis mensure — (67va) vicinior vero est consideratio. Incipit compositio instrumenti per quod habetur tropicorum et remotio sumitatis capitum ab equinoctiali. Sume laterem ligneum vel lapide<u>m — (67vb) si Solis umbram in omni meridie circa maxime solsticium observaveris. Compositio instrumenti per quod reperitur diversitas aspectus Lune in latitudine. Sumantur tres regule recte et planissime — arcus inquam deprehensus inter locum latitudinis Lune et visum locum Lune.’ = Almagesti minor (C.1.4) , excerpts on instruments from V.1, I.15 and V.11. No glosses.

67ra–⁠68rb

‘Incipit tractatus de compositione armillarum. Queruntur primo due armille convenientis mensure — (67va) vicinior vero est consideratio. Incipit compositio instrumenti per quod habetur tropicorum et remotio sumitatis capitum ab equinoctiali. Sume laterem ligneum vel lapide<u>m — (67vb) si Solis umbram in omni meridie circa maxime solsticium observaveris. Compositio instrumenti per quod reperitur diversitas aspectus Lune in latitudine. Sumantur tres regule recte et planissime — arcus inquam deprehensus inter locum latitudinis Lune et visum locum Lune.’

= Almagesti minor (C.1.4)

, excerpts on instruments from V.1, I.15 and V.11. No glosses.