1. Cotton MS Cleopatra B VI, ff 238-251 Reference (shelfmark): Cotton MS Cleopatra B VI, ff 238-251 Title: Iohannes de Sacro Bosco, Algorismus (238r–245r); Ars rithmicandi (245v–246v); medieval endleaves (ff. 248–251) Scope & Content: Dated: middle of the 15th century (238r–245r); 2nd half of the 15th century (245v–246v) Languages: Latin; English (250v) Collection Area: Western Manuscripts Languages: English and Latin Date Range: mid 15th century-2nd half 15th century Extent: 1 item