'In quatuor Georgicorum Virgilij libros per [?] B. C. argumenta et declarationes' (a rather later title): a commentary on the Georgics, with an index of the lemmata and a few later notes: a leaf is wanting at the end of the index, and one also at the end of the text. Fol. iv is a 19th century paper by G. Negrini (1826?) suggesting that the whole is in the hand of, if not composed by, Battista Guarini (d. 1513), but this was seen by the writer himself in 1837 to be not likely; and…