1. Harley MS 1779 Reference (shelfmark): Harley MS 1779 Title: A philosophical disputation known as Disputatio Unica de Distinctione Specierum Durationis Scope & Content: Contents: ff. 1r-130r: A philosophical disputation known as Disputatio Unica de Distinctione Specierum Durationis. Collection Area: Western Manuscripts Languages: Latin Date Range: 17th century Extent: 1 volume