He proceeded, accordingly, to the mouth of the Nile, where he found a very eligible place, as he believed, for the foundation of a commercial city, and he determined to build it on his return. Thence he marched along the shores of the Mediterranean, toward the west, until he reached a place called Parætonium, which will be found upon the map. He then left the sea-shore and marched south, striking at once into the desert when he left the sea. He was accompanied by a small detachment of his army as an escort, and they journeyed eleven days before they reached the Oasis.