said that the loss of the books of Dio was the fault of Xiphilinus. His manuscript was still complete as regards the reigns of Augustus, Tiberius, and Claudius, where the Venetian is full of gaps. The very late author of the _Lexicon Syntacticum_, which Bekker has edited, already in all probability had no more the first five and thirty; as from these, in comparison with the other books, he gives scarcely any extracts at all. We have a fragment which is generally thought to be of the thirty-fifth book, but which, according to Reimarus, most likely belongs to the thirty-sixth; then from the thirty-seventh to the fifty-fourth complete, and the fifty-fifth and fifty-sixth mutilated. Of the first twenty books we have the abstract of Zonaras, with slight admixtures from Plutarch; of the last forty-five, that of Xiphilinus likewise with admixtures. Of books 78, 79 and 80, we have an important fragment from the Vatican library. In books 55 to 60, the manuscripts are full of gaps: Xiphilinus, however, had yet a complete copy of them. Morelli, an excellent philologist, found these books in the year 1797, when, to console himself for the downfall of his republic, he took to ancient history as a refuge, in a very old manuscript in the library of St. Mark, and discovered that it had formerly been complete, but had suffered much from the destruction of part of the fascicles and leaves; that this was the mother-manuscript for these six books; but that when the copyist in his transcript had come to a stop in some story, and the beginning of the next was mutilated, he had entirely dropped such incomplete narrations, and disguised the gaps. Morelli has collected these defective passages, so that we see how at one place some leaves, at another, whole quaternions are missing. From what he communicated, the remarkable expedition of Ahenobarbus to Germany was first brought to light, which had till then been unknown. Thus also in Diodorus, the halves of two books are entirely wanting, a circumstance which is nowhere noticed. In a third passage, Perizonius and others have discovered it. Such a thing was by no means of rare occurrence among the volatile Greeks of the fifteenth century, who gained their livelihood by copying.--What remains of the three last books of Dio Cassius, has been edited by Fulvius Ursinus. The manuscript is of the seventh or eighth century; yet the centre column only has been preserved entire: the two others along the margins are illegible. Nevertheless something may be gleaned from it. In the excerpta _de Legationibus_, _de Virtutibus et Vitiis_, and _de Sententiis_, many pieces from Dio are to be found. We have also many fragments elsewhere, as Dio was very much read. There are besides the abridgments of Xiphilinus and Zonaras. It is surprising that the latter is not also reprinted in the edition of Reimarus. This Zonaras,[28] under Alexius and Kalojohannes Comnenus, was a man of business, and wrote a history