Milano, Biblioteca Ambrosiana, A 183 Inf. Century 16 Language Latin Material Chart. Height × width 360 x 270 No. of leaves 122 Printed catalogs Díaz y Díaz 964, 969, 976; Gabriel (1968) 44-6 Publ. descriptions Thorndike, "Traditional Medieval Tracts Concerning Engraved Astrological Images," Mélanges Auguste Pelzer (1947) 236 Source Gabriel Type of source cat. Source’s source Ceruti & al. cats. T & K TK 1570, 260, 729, 285 Work 1Title (standard) Tractatus de compoto (frag.) Facsimiles (2r) Gabriel (1968) 44/5 Pl. II Additional remarks pars ultima Folio no. 1 Work 2Author standard Johannes de Sacrobosco Title (standard) Tractatus de sphera Incipit De sphera Folio no. 1v Explicit machina dissolvetur. Work 3Author standard Jordanus Nemorarius Title (standard) Liber de triangulis Incipit Contiguitas est Folio no. 7v Explicit qua proponebatur. Work 4Author standard Ptolemaeus Title (standard) Planispherium Incipit Qauemadmodum Ptolemaeus Folio no. 14 Explicit signa distinguendibus. Math. drawings cum figuris Work 5Author (ms.) Albatecnius Author standard Albategnus Title (standard) Excerpta Incipit Integrorum multiplicato Folio no. 20 Explicit 1248 213 L2. Work 6Author standard Alcabitius Title (standard) Ad iuditia astrorum (aceph., frag.) Incipit ... duorum planetarum Folio no. 24 Explicit a Johanne Hispanensi. Work 7Author standard Zahel Benbriz Title (standard) Liber iudicorum Incipit Scito quod signa sunt Folio no. 29-51v Explicit et omnes res eius. Work 8Author standard Johannes Hispalensis | Messahala Title (standard) Liber de receptione et coniunctione Incipit Invenit quidam vir Folio no. 56v-64v Explicit nutu Dei. Work 9Author standard Messahala Title (standard) Liber de revolutione annorum mundi Incipit Custodiat de Deus Folio no. 64v-68v Explicit ex gravitate eius. Work 10Author (ms.) Meschalah Author standard Johannes Hispalensis | Messahala Title (standard) Epistola in conjunctionibus planetarum et eclypsis solis et lune Folio no. 68v-71 Rubric Incipit epistola Meschalah in rebus eclipsis lune Explicit scientiae astrorum. Work 11Author (ms.) Ypocras Author standard Pseudo-Hippocrates Title (standard) Liber astronomie Incipit Dicit Ypocras qui fuit medicus et magister obtimus Folio no. 71-73v Explicit sin autem morietur. Colophon Finito liber Ypocratis. Deo gracias. Work 12Author (ms.) Thebit ben Corat Author standard Johannes Hispalensis | Thabit ibn Qurra Title (ms.) Liber ymaginum Title (standard) De imaginibus astronomicis Incipit (74) Dixit Thebit ben Corat quod Aristotiles ait. Qui philosophiam geumetriam omnesque scienciam Folio no. 73v-74 Prolog Cum cernens planetarum cursus libris perlectis Explicit intellige exposita voluptate divina. Amen. Colophon Explicit liber ymaginum a Thebit ben Corat Work 13Author (ms.) Tesbit Bencorat | Thesbit Bencore Author standard Thabit ibn Qurra Title (ms.) Astrologia Title (standard) Super Almagestum Incipit Tesbit Bencorat radiosa mentis speculacione Folio no. 76-77v Explicit erunt retrogradj. Colophon Explicit astrologia Thesbit Bencore super almagestj. Work 14Author standard Thabit ibn Qurra Title (standard) De motu octave spere Incipit Immaginabor speram equatoris diei et tres circulos Folio no. 77v-78v Explicit quo instrasti in lineam numeri Work 15Author (ms.) Machumetus Author standard Al-Khwarizmi Title (ms.) De algebra et almuhabila Title (standard) Algebra Incipit Postquam illud quod ad computaionem consideravi necessarium Folio no. 115-120 Explicit cuius radix est. Work 16Author (ms.) Algus Author standard Johannes de Sacrobosco Title (ms.) Summa de algurismo Title (standard) Algorismus Incipit Omnia que a primeva rerum origine processerunt Folio no. 120-122v Rubric Incipit summa magistri Algi de algurismo. Explicit si bene operatus es sin autem non. Colophon Et de Algorismo grosso hec sufficiant.