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1. Harley MS 80, ff 1r-57r, ff 54v-57r

Reference (shelfmark):
Harley MS 80, ff 1r-57r, ff 54v-57r
Title:
Richard of Wallingford, Tractatus rectanguli
Scope & Content:
Richard of Wallingford, Tractatus rectanguli. Prologue 'Rectangulum in remedium tediosi & difficilis operis', rubric 'Capitulum primum de arte componendi tibiam primam', incipit: 'Ad componendum igitur rectangulum, separemus laminam', explicit (f. 57r) 'ponimus istic finem', followed (f. 57r) by a c...
Collection Area:
Western Manuscripts
Languages:
Latin
Date Range:
2nd half of the 14th century
Extent:
4 folios.

2. Harley MS 80, ff 1r-57r, ff 34r-54r

Reference (shelfmark):
Harley MS 80, ff 1r-57r, ff 34r-54r
Title:
Richard of Wallingford, Tractatus Albionis
Scope & Content:
Richard of Wallingford, Tractatus Albionis. This treatise by Richard of Wallingford (c. 1292-1336), abbot of St Albans and astronomer, relates to an equatorium, an astronomical instrument for the calculation of planetary positions. It was probably composed around 1326, at much the same period as th...
Collection Area:
Western Manuscripts
Languages:
Latin
Date Range:
2nd half of the 14th century
Extent:
21 folios.

3. Harley MS 80, ff 1r-57r

Reference (shelfmark):
Harley MS 80, ff 1r-57r
Title:
Texts on mathematics and geometry
Scope & Content:
The first unit relates to mathematics and geometry and comprises: Roger Bacon, De Scientia Perspectiva (ff. 1r-33v); Richard of Wallingford, Tractatus Albionis (ff. 34r-54r) and Tractatus rectanguli (ff. 54v-57r). Decoration: Chapter initials (3 lines; ff. 1r-8v and 34r-57r) in blue, with pen-flouri...
Collection Area:
Western Manuscripts
Languages:
Latin
Date Range:
1350-1499
Extent:
57 folios.

4. Harley MS 80, ff 1r-57r, ff 1r-33r

Reference (shelfmark):
Harley MS 80, ff 1r-57r, ff 1r-33r
Title:
Roger Bacon, De Scientia Perspectiva
Scope & Content:
De Scientia Perspectiva, treatise on optical science and phenomena by Roger Bacon (circa 1214-1292), philosopher and Franciscan friar. It is copied in cursive script (Anglicana) by two English hands, datable respectively to the second half of the 14th century (ff. 1r-8v, and 15th century (ff. 9r-33r...
Collection Area:
Western Manuscripts
Languages:
Latin
Date Range:
1350-1499
Extent:
33 folios.

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