CHAPTER XXV.
Unjust treatment of merchants, mariners, and artisans--The straits of the Bosphorus and the Hellespont burdened with custom-house dues--Enormous dues levied by Addeus in the port of Byzantium--Change in the silver coinage: its depreciation--Monopoly of the silk trade--Ruin of Berytus and Tyre--Malversations of Peter Barsyames and his successors--Tyranny of Theodora and avarice of Justinian..