1. Harley MS 6398 Reference (shelfmark): Harley MS 6398 Title: Boke of Marchalsi Scope & Content: Contains the Boke of Marchalsi, a treatise on horse breeding and veterinary medicine. Decoration: Numerous large initials in blue with red pen-flourishing and small initials in plain blue. Line fillers and paraph marks in blue. Collection Area: Western Manuscripts Languages: English, Middle Date Range: Mid 15th century Extent: 1 volume