7--16) and Agathias, (l.
ii.iii.and iv.p.

55--132, 141.)] The extreme length of the Euxine Sea [65] from Constantinople to the mouth of the Phasis, may be computed as a voyage of nine days, and a measure of seven hundred miles.

From the Iberian Caucasus, the most lofty and craggy mountains of Asia, that river descends with such oblique vehemence, that in a short space it is traversed by one hundred and twenty bridges.

Nor does the stream become placid and navigable, till it reaches the town of Sarapana, five days' journey from the Cyrus, which flows from the same hills, but in a contrary direction to the Caspian Lake.

The proximity of these rivers has suggested the practice, or at least the idea, of wafting the precious merchandise of India down the Oxus, over the Caspian, up the Cyrus, and with the current of the Phasis into the Euxine and Mediterranean Seas.