chronological sketch from Adam down to the year of his own death in 829. Of great influence on the age that followed was Georgius Monachus, only second in importance as chronicler of the early Byzantine period, who compiled a chronicle of the world's history (from Adam until the year 843, the end of the Iconoclast movement), far more theological and monkish in character than the work of Theophanes. Among later chroniclers Johannes Scylitza stands out conspicuously. His work (covering the period from 811 to 1057), as regards the range of its subject-matter, is something between a universal and a contemporary history. Georgius Cedrenus (c. 1100) embodied the whole of Scylitza's work, almost unaltered, in his _Universal Chronicle_. In the 12th century the general increase in literary production was evident also in the department of chronicles of the world. From this period dates, for instance, the most distinguished and learned work of this class, the great universal chronicle of John Zonaras. In the same century Michael Glycas compiled his chronicle of the world's history, a work written in the old popular style and designed for the widest circles of readers. Lastly, in the 12th century, Constantine Manasses wrote a universal chronicle in the so-called "political" verse. With this verse-chronicle must be classed the imperial chronicle of Ephraem, written in Byzantine trimeters at the beginning of the 14th century. Geography. Geography and topography, subjects so closely connected with history, were as much neglected by the Byzantines as by their political forerunners, the Romans. Of purely practical importance are a few handbooks of navigation, itineraries, guides for pilgrims, and catalogues of provinces and cities, metropolitan sees and bishoprics. The geographical work of Stephanus of Byzantium, which dates from Justinian's time, has been lost. To the same period belongs the only large geographical work which has been preserved to us, the _Christian Topography_ of Cosmas Indicopleustes. For the topography of Constantinople a work entitled _Ancient History (Patria) of Constantinople_, which may be compared to the medieval _Mirabilia urbis Romae_, and in late manuscripts has been wrongly attributed to a certain Codinus, is of great importance. Philosophy.