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Ptolemaeus

Arabus et Latinus

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Brussels, Bibliothèque Royale, 2962-2978

s. XVex-XVIin (the year 1500 mentioned f. 125v; 1503 for f. 126r-156v; the year 1496 mentioned f. 158v). Or.: probably Germany for most of the MS; f. 126r-156v apparently copied in Italy (f. 126r: ‘tota notus in Italia, 1503’).

Paper (f. 1-231) and parchment (f. 232-248), 248 f., several hands, one of which copied f. 9r-121v, 157r-168v, 177r-181r, 211v-212r and 215r-215v.

Astronomy, mathematics, computus and various: scattered notes, partly in German (1r-8v); ‘Compositiones diversorum horologiorum secundum magistrum Fredericum Weiis de Ratispana [Regensburg]. Ad protrahendum duas lineas rectas in angulo…’ (9r-26v); diagram ‘Hore equales ab ortu Solis…’ (27v-28r); ‘Compositio organi Ptolomei. Describe circulum ad planum (?) ABCD divisum 24 partes…’ (29r-29v); ‘De magnete. Dicendum est de magnete quod inter omnes lapides…’ (37r-39v); Nicolaus Cusanus, De mathematicis complementis (45r-77v); Nicolaus Cusanus, De mathematica perfectione (78r-88r); ‘De quadratura circuli secundum magistrum Fredericum Regesteden<sem>. Dividatur diameter circuli in 35 partes… (90r) Conclusiones dividendi rotas pro horologio astronomico pro motibus planetarum. Habita rota recti numeri…’ (89v-121v, this text includes, f. 90r-90v, the beginning of Richard of Wallingford’s Tractatus horologii astronomici); Regiomontanus, Kalendarium 1475-1506, adapted for 1504-1531 and dated 1503 (126r-156v); scattered notes and blank pages (157r-168v), including a biographical note on Paul of Gerresheim (160r); ‘Excerpta Palladii. Palladii librum breviatum per Godefridum. Accipe curta…’ (169r-176v); ‘Opus domini Bonifacii quarti de dissolutione Lune et congelatione Mercurii et fixione eiusdem. Recipe vitrioli boni…’ (177r-181r); ‘Ars piscandi cum hamo’, in German and Latin (183r-191r); ‘Extracta per me Paulum ex tractatu magistri Leonis Iudei de Balneolis De baculo Iacob. Quadratum corde arcus minoris…’ (194r-210r); Ptolemaica (211v-212r); notes and table on planetary motions (215r-215v); medical recipes (216r-218r); ‘Apertio serarum… Ad capiendum pisces… Ad extrahendum sagittam ex corpore…’ etc., in German (219r-225v); ‘Ars notabilis dicendi et modus persuadendi ac etiam amplificandi quodcumque thema. Ut ornate et devote scias loqui…’ (226r-229r); Walter Burley, De vita et moribus philosophorum, excerpts on (232r-244v); ‘De iucicio urine secundum medicos. Quicumque voluerit scire infirmitatem suam…’ (245r-246v); ‘Nota: Fuerunt tres phylosophi qui inter alios multum loquaces fuerunt…’ (247r-248v). Blank: 27r, 30-36 (except notes f. 33r-33v), 40-44, 88v-89r, 122r-125v (except note f. 125v), 157v-158r, 159v, 160v, 161v, 162v-164r, 165r-166r, 167v-168r, 181v-182v, 191v-193v, 210v-211r, 212v-214v, 218v, 229v-231v.

Lit. E. Zinner, ‘Aus alten Handschriften’, Naturforschende Gesellschaft Bamberg 38 (1962), 8-57: 20-21; R. Calcoen, Inventaire des manuscrits scientifiques de la Bibliothèque Royale de Belgique, I, Bruxelles, 1965, 57-61; J. D. North, Richard of Wallingford: An Edition of His Writings with Introduction, English Translation and Commentary, Oxford, 1976, II, 309-310; P. O. Kristeller, Iter Italicum, III, London-Leiden, 1983, 114.

211v‑212r

‘Ptolomeus in suo Almagesti. Data circuli diametro latera decagoni, pentagoni… Docet Ptolomeus per hanc propositionem — que sit bd et traho lineam.’