CHAP. 100.—WHERE THE TIDES RISE AND FALL IN AN UNUSUAL MANNER.
There are, however, some tides which are of a peculiar nature, as in the Tauromenian Euripus622, where the ebb and flow is more frequent than in other places, and in Eubœa, where it takes place seven times during the day and the night. The tides intermit three times during each month, being the 7th, 8th and 9th day of the moon623. At Gades, which is very near the temple of Hercules, there is a spring enclosed like a well, which sometimes rises and falls with the ocean, and, at other times, in both respects contrary to it. In the same place there is another well, which always agrees with the ocean. On the shores of the Bætis624, there is a town where the wells become lower when the tide rises, and fill again when it ebbs; while at other times they remain stationary. The same thing occurs in one well in the town of Hispalis625, while there is nothing peculiar in the other wells. The Euxine always flows into the Propontis, the water never flowing back into the Euxine626.