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Johannes de Sacro Bosco (ca 1195-ca 1256)

Johannes de Sacro Bosco was a scholar, mathematician and astronomer. He wrote the influential treatise Liber de spatio temporis (On the Measurement of Time), which was used as a textbook by scholars of the Middle Ages. He is best known for his work on the computation of Easter, which he developed in his treatise Computus, and for his calculations of the motion of the planets and the precession of the equinoxes.

- Sphaera mundi. Ferrara, Andreas Belfortis,1472

- Sphaera mundi. Gerardus Cremonensis: Theorica planetarum. [Venezia, Florentius de Argentina, not after 8 May 1472]

- Sphaera mundi. [Venezia, Filippo di Pietro, about 1476]

- Sphaera mundi. Milano, [Philippus de Lavagnia], 1 April 1478

- Sphaera mundi. Gerardus Cremonensis: Theorica planetarum. V. enezia, Franciscus Renner,1478

- Sphaera mundi. [Venezia, Adam von Rottweil, about 1478] D➤

- Sphaera mundi. Gerardus Cremonensis: Theorica planetarum. Tractatus de motu octavae sphaerae. Bologna, Dominicus Fuscus,1480 D➤

- Sphaera mundi. Georgius Purbachius: Theoricae novae planetarum. Regiomontanus: Disputationes contra Cremonensia deliramenta. Venezia, Erhard Ratdolt, 6 July 1482 D➤

- Sphaera mundi. Georgius Purbachius: Theoricae novae planetarum. Regiomontanus: Disputationes contra Cremonensia deliramenta. [Venezia], Erhard Ratdolt, [before 4 November] 1485 D➤

- Sphaera mundi. [Brescia, Boninus de Boninis, about 1486]

- Algorithmus. [Firenze, Francesco Bonaccorsi, about 1486-1490]

- Sphaera mundi. [Leipzig, Printer of Capotius, [=Martin Landsberg, or Andreas Frisner], about 1487-1488] D➤

- Sphaera mundi. Georgius Purbachius: Theoricae novae planetarum. Regiomontanus: Disputationes contra Cremonensia deliramenta. Venezia, Johannes Lucilius Santritter, and Hieronymus de Sanctis, 31 March 1488 D➤

- Sphaera mundi. Leipzig, Conrad Kachelofen, [1489] D➤

- Sphaera mundi. [Paris], Wolfgang Hopyl,1489 .

- Sphaera mundi. Leipzig, Conrad Kachelofen, [1489] D➤

- Sphaera mundi. Georgius Purbachius: Theoricae novae planetarum. Regiomontanus: Disputationes contra Cremonensia deliramenta. Venezia, [Bonetus Locatellus], for Octavianus Scotus, 4 October 1490 D➤

- Sphaera mundi. Georgius Purbachius: Theoricae novae planetarum. Regiomontanus: Disputationes contra Cremonensia deliramenta. [Strasbourg, Martin Flach], 13 May 1490

- Sphaera mundi. Georgius Purbachius: Theoricae novae planetarum. Regiomontanus: Disputationes contra Cremonensia deliramenta. Venezia, v, 14 January 1491 D➤

- Sphaera mundi. [Paris], Georg Mittelhus, December 1493 D➤

- Sphaera mundi. [Paris], Antoine Caillaut, [about 1493]

- Sphaera mundi. [Venezia, Bonetus Locatellus, or Bartholomaeus de Zanis, not before 1494]

- Sphaera mundi. Paris, [Johannes Higman, for] Wolfgang Hopyl, 12 February 1494-1495 D➤

- Sphaera mundi. [Leipzig], Martin Landsberg, [1494] D➤

- Sphaera mundi. [Paris], Félix Baligault, [1494]

- Sphaera mundi. [Leipzig], Martin Landsberg, [about 1495] D➤

- Sphaera mundi. Dialogus disputatorius in additiones opusculi de sphaera mundi. Paris, Guy Marchant, for Jean Petit, February 1498 D➤

- Sphaera mundi. [Leipzig, Wolfgang Stöckel],1498 D➤

- Sphaera mundi. Georgius Purbachius: Theoricae novae planetarum. Venezia, Simon Bevilaqua, 23 October 1499 D➤

- Sphaera mundi. Leipzig, Wolfgang Stöckel,1499

- Sphaera mundi. Anulus astronomicus. Geometriae liber primus. Paris, [Johannes Higman, for] Wolfgang Hopyl, 1 September 1500 D➤

- Sphaera mundi. Köln, Heinrich Quentell, 7 July 1500 D➤

- Sphaera mundi. Venezia, [Jacobus Pentius], for Georgius de Monteferrato, 28 January 1500-1501

- Sphaera Mundi. Venezia, per Giovanni Battista I Sessa, 1501 D➤

- Opus sphericum figuris et perutili commento illustratum. [Köln, Heinrich Quentel, 1501] D➤

- Sphaera mundi. [Leipzig, Martin Landsberg, about 1502]

- Textus spere materialis Joannis de sacrobusto cum lectura magistri Conradi norici in florentissimo Lipsensi gymnasio: nuper exarata. Verba thebit acutissimi astronomi de imagine tocius mundi atque corporis sperici conpositione per eundem addita. Verba. [Leipzig, per Martin Landsberg, 1503] D➤

- Opus sphericum figuris verissime exculptis et iterpretatione familiari ad commoditatem desiderantium jucundissima artis astronomice callere principia pulcherrime et iterata recognitione illustratum. [Köln, Heinrich Quentel (heirs of), 1503]

- Astronomice sciencie sphericum introductoriu Joannis de Sacro busto. (Colophon: impressum Leipzig, per Baccalaurium Wolfgangu Monacensem anno 1503)

- Opus sphericum figuris verissime exculptis at interpretatione familiari ad commoditatem desiderantium jucudissima artis astronomice callere principia pulcerrime et iterata recognitione illustratum. [Köln, Heinrich Quentel (heirs of), 1503] D➤

- Opus sphericum figuris verissime exculptis et iterpretatione familiari ad commoditatem desiderantium jucundissima artis astronomice callere principia pulcherrime et iterata recognitione illustratum. [Köln, Heinrich Quentel (heirs of), 1505] D➤

- Textus de sphera cum additione. Paris, in officina Henri Estienne (I), 1507 D➤

- Uberrimum Sphere mundi commentum nuper castigatum. Paris, Jean Marchant [et] Jean Petit, 1508 D➤

- Opus sphericum. [Köln, in officina Heinrich Quentel (heirs of), 1508] D➤

- Textus spere materialis joannis de sacrobusto cum lectura magistri Conradi norici in florentissimo Lipsensi gymnasio nuper exarata. Verba thebit acutissimi astronomi de imagine totius mudi atque corporis sperici compositione pro eund addita. Ordinatio spere materialis: ex decem circulis huic operi inseruiens: per magistru Conradu noricu noviter addita et diligenter revisa: verba de imagine totius mundi atque corporis sperici compositione. [Leipzig, per Martin Landsberg, 1509]

- Textus spere materialis joannis de sacrobusto. [Leipzig, per Martin Landsberg, 1510] D➤

- Textus de Sphaera, cum additione (quantum necessarium est) adjecta: novo commentario nuper edito cum compositione anuli astronomici Boneti Latensis, et Geometria Euclidis Megarensis. Paris, in officina Henri Estienne, 1511

- Sphaera mundi. Venezia, per Melchiorre I Sessa, 1513

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