AlgorismusSacro Bosco, Joannes de, active 1230approximately 1460.latManuscript on parchment of Joannes de Sacrobosco's Algorismus vulgaris, a treatise on mathermatics, numbers, and Hindu-Arabic numerals. Here incorrectly attributed to Boethius in the opening rubricThe manuscript is a palimpsest containing portions of Ovid's Heroides: on f. 2, Epistle XVI, lines 109-172; on f. 3, Epistle XVI, lines 173-233; on f. 5, Epistle XIV, lines 79-132; on f. 7, Epistle XIII, lines 119-166; on f. 8, Epistle XVI, lines 234-297. Remaining leaves unidentifiedIn Latin.Title assigned by cataloger. Variant title from opening rubric.Layout: Single columns of 32 lines.Script: gothic hybrida.Decoration: rubrication.Binding: modern paper.Secundo folio: De additione.Evidence of pricking.