De diphthongisGuarino, Veronese, 1374-1460[between 1450 and 1500]latManuscript on paper of Guarinus Veronensis (Guarino da Verona, 1374-1460), De diphthongis, consisting mainly of annotated lists of words containing the diphthongs "ae" and "oe" successively. In both cases the words beginning with the diphthong come first, followed, in alphabetical order, by those in which the diphthong is in another position ("in mediis"). In the introductory text spaces have been left open for the Greek words, which have not been addedIn Latin.Script: One hand, writing an imperfect Humanistica Semitextualis Libraria, using tironian et instead of the ampersand and mixing ae and ẹ.Headings in red ink. There are guide letters and space for a 4-line initial on f. 1r and a 2-line initial on f. 1v, but neither initial has been executed.The paper at places damaged by the acid ink.Binding: Twentieth century. White parchment over cardboard; paper endleaves.