Nantucket Sound, Vineyard Sound, Buzzards Bay, Narragansett Bay, Block Island Sound, and Easterly entrance to Long Island Sound.
A line drawn from Chatham Lighthouses, Mass., 146° (S. by E. ¾ E.), 4⅜ miles, to Pollock Rip Slue Light Vessel; thence 142° (SSE. ⅛ E.), 12¾ miles, to Great Round Shoal Entrance Gas and Whistling Buoy (PS); thence 229° (SW. by W. ⅝ W.), 14½ miles, to Sankaty Head Lighthouse; from Smith Point, Nantucket Island, 261° (W. ⅜ N.), 27 miles, to No Mans Land Gas and Whistling Buoy, 2; thence 359° (N. by E. ⅛ E.), 8⅛ miles, to Gay Head Lighthouse; thence 250° (W. ⅝ S.), 34½ miles, to Block Island Southeast Lighthouse; thence 250½° (W. ⅝ S.), 14¾ miles, to Montauk Point Lighthouse, on the easterly end of Long Island, N. Y.