1. Cotton MS Fragments IV Reference (shelfmark): Cotton MS Fragments IV Title: Cotton Manuscript Fragments IV Collection Area: Western Manuscripts Languages: Latin Date Range: Unspecified Extent: 2 items
2. Cotton MS Fragments IV, ff 22–26 Reference (shelfmark): Cotton MS Fragments IV, ff 22–26 Title: Roger Bacon, Perspectiua (imperfect) Collection Area: Western Manuscripts Languages: Latin Date Range: 2nd half of the 13th century Extent: 1 item
3. Cotton MS Fragments IV, ff 1–21 Reference (shelfmark): Cotton MS Fragments IV, ff 1–21 Title: Computistical treatises (1r–8v, 9r–21v: imperfect) Collection Area: Western Manuscripts Languages: Latin Date Range: Mid 12th century Extent: 1 item