the bulk of his forces to Babylon without a day's more delay than was absolutely necessary, and the event proved that he had good reason for such haste. Nebuchadrezzar III. had taken advantage of the few weeks which had elapsed since his accession, to garrison the same positions on the right bank of the Tigris, as Nabonidus had endeavoured to defend against Cyrus at the northern end of the fortifications erected by his ancestor. A well-equipped flotilla patrolled the river, and his lines presented so formidable a front that Darius could not venture on a direct attack. He arranged his troops in two divisions, which he mounted partly on horses, partly on camels, and eluding the vigilance of his adversary by attacking him simultaneously on many sides, succeeded in gaining the opposite bank of the river. The Chaldaeans, striving in vain to drive him back into the stream, were at length defeated on the 27th of Athriyadiya, and they retired in good order on Babylon. Six days later, on the 2nd of Anamaka, they fought a second battle at Zazanu, on the bank of the Euphrates, and were again totally defeated. Nebuchadrezzar escaped with a handful of cavalry, and hastened to shut himself up in his city. Darius soon followed him, but if he cherished a hope that the Babylonians would open their gates to him without further resistance, as they had done to Cyrus, he met with a disappointment, for he was compelled to commence a regular siege and suspend all other operations, and that, too, at a moment when the provinces were breaking out into open insurrection on every hand.*