[Footnote 66: Between the Black Sea, the Bosphorus, and the
River Barbyses, which is deep in summer, and runs fifteen
miles through a flat meadow. Its communication with Europe
and Constantinople is by the stone bridge of the Blachernoe,
which in successive ages was restored by Justinian and
Basil, (Gyllius de Bosphoro Thracio, l. ii. c. 3. Ducange
O. P. Christiana, l. v. c. 2, p, 179.)]