Note 553 — Chapter XCIV · MILITARY OPERATIONS AND CONQUESTS OF ALEXANDER, AFTER HIS WINTER-QUARTERS IN PERSIS, DOWN TO HIS DEATH AT BABYLON.
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The voyage was commenced a few days before the setting of the Pleiades (Aristobulus, ap. Strab. xv. p. 692).
For the number of the ships, see Ptolemy ap. Arrian, vi. 2, 8.
On seeing crocodiles in the Indus, Alexander was at first led to suppose that it was the same river as the Nile, and that he had discovered the higher course of the Nile, from whence it flowed into Egypt. This is curious, as an illustration of the geographical knowledge of the time (Arrian, vi. 1, 3).