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Astronomical treatises and tables, Written in the 1st half of the 15th century in England

MS. Savile 17
Held at the Weston Library

  • Request
Astronomical treatises and tables:
  1. Fol. 1. The 'Kalendarium nouum magistri Petri de Dacia', who was rector of the university of Paris in 1326, apparently composed about 1300, as printed by Léopold Delisle in Bibliothèque de l'Ecole des Chartes, xlviii. 532: beg. 'Quere in superiori parte istius tabule numerum annorum'. This is preceded by paschal tables (fol. 1v)
  2. Fol. 11v. a 'practica astrolabii' in 50 chapters, with a table thereof (fol. 11), beg. 'Nomina instrumentorum sunt hec'
  3. Fol. 22v. 'De spera celi', beg. 'Spera celi ut dicit Ysidorus est species quedam'
  4. Fol. 46. Robert Grossetete's tract 'de impressionibus aeris seu de prognosticatione' (cod. H. in Dr Ludwig Baur's edition of Die philosophischen Werke des Robert Grosseteste, Münster, 1912)
  5. Fol. 50. the 'Theorica planetarum' commonly ascribed to Gerard of Cremona, of which other copies are in MSS. Bodl 464, Bodl. 300, Bodl. 367, Bodl. 472, beg. 'Circulus egresse cuspidis'. For other MSS. see Mathematica, vi. 112
  6. Fol. 60v. 'Alkabitius in libro introductorio judiciorum astronomicorum facto ad Seydule regem, interpretatus a Johanne Hispanico', being John of Seville's translation of the 10th-cent. treatise by 'Abd al-'Azīz ibn 'Uthmān al Kabīsī, printed at Venice in 1482: beg. 'Postulata a domino prolixitate'
  7. Fol. 94v. 'Argorismus Johannis de Sacro bosco' (alias Holywood), printed in Halliwell's Rara Mathematica (1841), p. 1, from another MS., beg. 'Omnia que a primitiva origine rerum'
  8. Fol. 104. Alexander of Villedieu's metrical arithmetic in 286 lines, here without title, printed Op. cit., pp. 73-83, beg. 'Hec algorismus ars presens dicitur, in qua'
  9. Fol. 109. an anonymous prose work on arithmetic, beg. 'Numerorum alius digitus alius articulus'
  10. Fol. 115. a short geometrical piece, beg. 'Scire debes quod circulus duas habet medietates'
  11. Fol. 122. Johannes de Sacro bosco on the sphere, as in Ms. Digby 15, beg. 'Tractatum de sphera in 4 capitulis distinguimus'
  12. Fol. 141. 'Incipit noua compilatio magistri Johannis de sacro bosco', beg. 'Compotus est sciencia considerans tempora', written apparently in 1235 (fol. 162), but with the date 'm. Christi bis cc quarto [sic] deno quater anno' in the metrical colophon (fol. 174)
  13. Fol. 175. the Massa compoti of Alexander de Villa Dei, with prose prologue beg. imperfectly, for another copy of which see MS. Fairfax 27, fol. 32: beg. 'Aureus in Jano numerus'
  14. Fol. 192. a fragment of Johannes de Sacro bosco on arithmetic, followed by the same author's 'cautele super algorismum', beg. 'In principio videndum est quid est algorismus', in a hand different from that of the preceding items and somewhat later
Fol. 1 has a late 15th-cent. table of contents and some erased inscriptions.

(fols. 187-91 are blank parchment)


  • Written in the 1st half of the 15th century in England


201 Leaves

Language of Materials

  • Latin


MS. Savile 17

Other Finding Aids

Falconer Madan, et al., A summary catalogue of western manuscripts in the Bodleian Library at Oxford which have not hitherto been catalogued in the Quarto series (7 vols. in 8 [vol. II in 2 parts], Oxford, 1895-1953; reprinted, with corrections in vols. I and VII, Munich, 1980), vol. II, no. 6563

Custodial History

Labelled '17'

Physical Facet

On parchment, binding, red leather on boards, 15th-cent. English work, with numerous diagrams


9 2/5 × 6 2/5 in.

Repository Details

Part of the Bodleian Libraries Repository

Weston Library
Broad Street
Oxford OX1 3BG United Kingdom