Charleston Harbor.

A line drawn from Ferris Wheel, on Isle of Palms, 154° (SSE. ¼ E.), 7 miles, to Charleston Light Vessel; thence 259° (W. ⅞ S.), through Charleston Whistling Buoy, 6 C, 7⅝ miles, until Charleston Lighthouse bears 350° (N. ⅞ W.); thence 270° (W.), 2½ miles, to the beach of Folly Island.