now the Negropont, a canal or strait which divides the island of Euboea from the continent of Greece. In one place it is so narrow, that a galley can scarce pass through it. The agitations of the Euripus were much spoken of by the ancients. Some say that the canal has a flux and reflux six times in 24 hours; others, that it ebbs and flows seven times a day; but Livy does not allow this flux and reflux to be so regular. Father Babin, a Jesuit of great learning, who made many observations on the spot during his long abode in the island of Negropont, tells us, that the Euripus is regular in its ebbing and flowing the first eight days of the moon: the same regularity he observed from the 14th to the 20th day inclusive; and in the three last days: but in the other days of the lunar month, it is not so regular; for it sometimes ebbs and flows 11, 12, 13, and 14 times in the space of a natural day.