The French engineers, at the beginning of the present century, came
to the conclusion that the Red Sea was about thirty feet above the
Mediterranean: but the observations of Mr. Robert Stephenson, the
English engineer, at Suez; of M. Negretti, the Austrian, at Tineh,
near the ancient Pelusium; and the levellings of Messrs. Talabat,
Bourdaloue, and their assistants between the two seas;--have proved
that the low-water mark of ordinary tides at Suez and Tineh is very
nearly on the same levels, the difference being that at Suez it is
rather more than one inch lower.--_Leonard Horner_; _Proceedings of the
Royal Society_, 1855.