1. Harley MS 3814 A, ff 3v-10r Reference (shelfmark): Harley MS 3814 A, ff 3v-10r Title: Computistical treatise Scope & Content: A computistical treatise, incipit: 'Ad inveniendam quantitatem annii solaris...'. Decoration: Initial in red ink (f. 3v). Collection Area: Western Manuscripts Languages: Latin Date Range: 2nd half of the 13th century Extent: 8 folios + 1 unfoliated parchment leaf at the end.