Towards the north, probably, the route most used was that which is thought by many to be the line followed by Xenophon, first up the valley of the Tigris to Til or Tilleh, and then along the Bitlis Chai to the lake of Van and the adjacent country. Another route may have led from Nineveh to Nisibis, thence through the Jebel Tur to Diarbekr, and from Diarbekr up the Western Tigris to Arghana, Kharput, Malatiyeh, and Asia Minor. Assyrian remains have been found at various points along this latter line, while the former is almost certain to have connected the Assyrian with the Armenian capital. Armenian productions would, however, reach Nineveh and the other great central cities mainly by the Tigris, down which they could easily have been floated from Tilleh. or even from Diarbekr. Similarly, Babylonian and Susianian productions, together with the commodities which either or both of those countries imported by sea, would find their way into Assyria up the courses of the two streams, which were navigated by vessels capable of stemming the force of the current, at least as high as Opis and Thapsacus. We may now proceed to inquire what were the commodities which Assyria, either certainly or probably, imported by these various lines of land and water communication. Those of which we seem to have some indication in the existing remains are gold, tin, ivory, lead, stones of various kinds, cedar-wood, pearls, and engraved seals. Many articles in gold have been recovered at the various Assyrian sites where excavations have been made; and indications have been found of the employment of this precious metal in the ornamentation of palaces and of furniture. The actual quantity discovered has, indeed, been small; but this may be accounted for without calling in question the reality of that extraordinary wealth in the precious metals which is ascribed by all antiquity to Assyria. This wealth no doubt flowed in, to a considerable extent, from the plunder of conquered nations and the tribute paid by dependent monarchs. But the quantity obtained in this way would hardly have sufficed to maintain the luxury of the court and at the same time to accumulate, so that when Nineveh was taken there was “none end” of the store. It has been suggested that “mines of gold were probably once worked within the Assyrian dominions,” although no gold is now known to be produced anywhere within her limits. But perhaps it is more probable that, like Judaea and Phoenicia, she obtained her gold in a great measure from commerce, taking it either from the Phoenicians, who derived it both from Arabia and from the West African coast, or else from the Babylonians, who may have imported it by sea from India.