mile and 1/6; therefore it is higher than any mountains which exist in the West.
[Footnote: The passage before this, in the original, treats of the exit of the waters from Lakes in general.]
The Dardanelles.
1108.
In the Bosphorus the Black Sea flows always into the Egean sea, and the Egean sea never flows into it. And this is because the Caspian, which is 400 miles to the East, with the rivers which pour into it, always flows through subterranean caves into this sea of Pontus; and the Don does the same as well as the Danube, so that the waters of Pontus are always higher than those of the Egean; for the higher always fall towards the lower, and never the lower towards the higher.
Constantinople.
1109.
The bridge of Pera at Constantinople, 40 braccia wide, 70