From the obscure and hearsay evidence, Gerard Vossius (de Poetis Graecis, c. 6) and Le Clerc (Bibliotheque Choisie, tom. xix. p. 285) mention a commentary of Michael Psellus on twenty-four plays of Menander, still extant in MS. at Constantinople. Yet such classic studies seem incompatible with the gravity or dullness of a schoolman, who poured over the categories (de Psellis, p. 42); and Michael has probably been confounded with Homerus Sellius, who wrote arguments to the comedies of Menander. In the 10th century, Suidas quotes fifty plays, but he often transcribes the old scholiast of Aristophanes.