is particularly noticeable in (39 the flood plain at its mouth. This plain extends about one-fourth mile inland from the sea and is about the one-fourth (reiff, p. 248) mile wide at the sea. The head of the delta plain, which is assumed to be at the line where the river leaves the shore hills on its north side (Wallibou Estate), is fifty feet above sea level, by an old reading, and is one hundred yards wide. The delta plain has increased in area since 1908 through cutting away by floods of the low shore plateau on which I pitched my tents in 1908 the at the base of bluffs of the Wallibou Estate on the north side of the river. This low plateau, the top of which was 25 to 25 feet above the sea, was composed of a heavy