The confluence of the combined Panjab rivers with the "Indus," wherever it may have been situated, was appointed to be the southern boundary of the satrapy of Philippos, to whom all the Thracians were made over together with an adequate force of infantry to form the garrison of his province. At about the same time the Bactrian nobleman, Oxyartes, father of Alexander's wife, Roxana, was deputed to the Paropanisadai, or the Kabul province, as satrap in succession to Tyriaspes, whose administration had been unsatisfactory. A city was founded at the confluence of the rivers with the "Indus," which Alexander hoped would become prosperous and famous. Dockyards also were constructed. Certain independent tribes, whom Arrian calls Abastanoi, Xathroi or Oxathroi, and Ossadioi, submitted or were subjugated, and it is noted that galleys of thirty oars and transport vessels were built and supplied by the Xathroi. Although it is impossible to determine accurately either the correct names or the true positions of the tribes in Northern Sind mentioned by the various ancient authorities, the region occupied by the tribes referred to seems to be that lying to the north and south of N. lat. 28° and between E. long. 69° and 70° 30'. During this stage of the campaign, Krateros, who hitherto, from the beginning; had always marched on the right, or western, bank of each successive river, was transferred to the left, or eastern, bank, which offered greater facilities for movement and was occupied by tribes less hostile than those on the other bank.
Alexander now hurried on in order to surprise the
