1. Harley MS 3814 A, ff 11r-22v Reference (shelfmark): Harley MS 3814 A, ff 11r-22v Title: Johannes de Sacrobosco, Algorismus Scope & Content: Decoration: Large puzzle initial 'O'(mnia) in red and blue at the beginning of the text. Initials in blue with red pen-flourishing or in red with blue pen-flourishing. Paraphs in red or blue. Collection Area: Western Manuscripts Languages: Latin Date Range: Mid 13th century Extent: 12 folios.
