[Footnote 48: Nic. Gregoras (l. xiii. c. 12) is judicious
and well informed on the trade and colonies of the Black
Sea. Chardin describes the present ruins of Caffa, where,
in forty days, he saw above 400 sail employed in the corn
and fish trade, (Voyages en Perse, tom. i. p. 46 - 48.)]