1. Harley MS 531, ff 1r-4v Reference (shelfmark): Harley MS 531, ff 1r-4v Title: Iohannes de Sacro Bosco, Algorismus Scope & Content: Iohannes de Sacro Bosco, Algorismus. Decoration: Initials in blue and red. Collection Area: Western Manuscripts Languages: Latin Date Range: 1272 Extent: 4 folios.
