I have taken notice of the fears and apprehensions, under which the first navigators must necessarily have been, when they traversed unknown seas; and were liable to be entangled among the rocks, and shelves of the deep: and I mentioned the expedients of which they made use to obviate such difficulties, and to render the coast less dangerous. They built upon every hill, and promontory, where they had either commerce or settlement, obelisks, and towers, which they consecrated to some Deity. These served in a twofold capacity, both as seamarks by day, and for beacons by night. And as people in those times made only coasting voyages, they continually went on shore with offerings, in order to gain the assistance of the God, whoever there presided; for these towers were temples, and oftentimes richly furnished and endowed. They were built sometimes on artificial mounds; but generally on natural eminences, that they might be seen at a great distance. They were called by the Amonians, who first erected them, [230]Tar, and Tor; the same as the תור of the Chaldees, which signified both a hill and tower. They were oftentimes compounded, and styled Tor-Is, or fire towers: on account of the light which they exhibited, and the fires which were preserved in them. Hence came the turris of the Romans; and the τυρις, τυῤῥις, τυρσις, τυρσος, of the Greeks. The latter, when the word Tor occurred in antient history, often changed it to ταυρος, a bull; and invented a number of idle stories in consequence of this change. The Ophite God Osiris, the same as Apollo, was by the Amonians styled Oph-El, and Ope-El: and there was upon the Sinus Persicus a city Opis, where his rites were observed. There seems likewise to have been a temple sacred to him, named Tor-Opel; which the Greeks rendered Ταυροπολος. Strabo speaks of such an oracular temple; and says, that it was in the island Icaria, towards the mouth of the Tigris: [231]Νησον Ικαριον, και ἱερον Απολλωνος ἁγιον εν αυτῃ, και μαντειον Ταυροπολου. Here, instead of Osiris, or Mithras, the serpent Deity, the author presents us with Apollo, the manager of bulls.