1. MS Facsimile 434 Reference (shelfmark): MS Facsimile 434 Title: Scope & Content: Rotographs of two manuscripts of the Summa grammaticae of Roger Bacon, viz.:-Cambridge, Peterhouse, MS. 191, ff. 30-52 (with enlarged reproductions of ff. 30-34) and Worcester Cathedral, MS. Q. 13, ff. 5-25. Collection Area: Western Manuscripts Languages: English Date Range: Unspecified Extent: 1 item