No provisions of any public or special act concerning the quantity of shellfish to be taken from natural grounds shall apply to the harvesting of shellfish from the following-described uncertified natural grounds posted by the Department of Public Health, under permits issued by said department: In the town of Branford, beginning at the southerly point of Darrow’s Island, at the mouth of Farm River, from which point, on the tenth day of June at 12:15 p.m., the New Haven lighthouse, on southwest ledge off New Haven Harbor, bears south 84° west; the spindle of Geodetic survey bears north, 11° west, “Magnetic Meridian”; thence along the westerly shore of said island to the northerly point thereof, where it intersects a designation to Patrick O’Brien and others; thence along the westerly line of O’Brien’s designation of what is called the “Gut” to the steppingstones, so called, at the southerly line of a designation to the middle of Farm River; thence southerly along a line in the middle of said river to the line of the Commissioner of Agriculture, formerly of the shellfish commissioners, to the place of beginning, containing twenty-two and one-half acres; also, beginning at Swift Water Point, so called, on the east side of Farm River, and at the northeasterly corner of Willis Munson’s designation; thence northerly along the easterly side of Farm River to the causeway and bridge; thence westerly along said causeway and bridge to the town line fixed by the towns of East Haven and Branford; thence southerly along said line in the middle of said river to said Munson’s north line, to the place of beginning, containing six acres; also, beginning on the northerly side of the causeway and bridge over Farm River and running northerly along the easterly shore of said river to a designation to Harrison Bristol and Warren S. Bradley, at a place called Oak Point; thence westerly along said Bristol and Bradley south line to the middle of the river; thence southerly by a line in the middle of the said river to the bridge over Farm River; thence easterly by the bridge and causeway to the place of beginning, containing three acres; also, all that portion of Farm River lying within the limits of the town of Branford, and being northerly of the northerly line of a designation near Farm Creek to August Hall and William H. Thompson, extending up said river to a point where the waters of Saltonstall Lake form a junction with the waters of said river, containing five acres, more or less; also, all that portion of territory within the limits of the town of Branford, known as Calm Island Bar, commencing at a hole drilled in a rock at the west end of Calm Island Bar, from which point the lighthouse on southwest ledge off New Haven Harbor bears, June 15, 1885, south 88° 35′ west, Branford Beacon bears south 6° 35′ east thence north 57° 45′ east, 751 feet, to a point of rock at the easterly end of said bar; thence running south 13° 12′ west to low water mark; thence in a westerly direction along the line of low water to a point which is south 53° 20′ east, from the hole in the rock; thence to the starting point; containing five and one-half acres; also, that portion of Branford River bounded and described as follows: Beginning at a point on the easterly side of Branford River, in a line with the northerly line bears north 32° 10′ west, ranging with the tall chimney of the Malleable Iron Works near the depot, in the town of Branford, and the chimney of the dwelling house on Kirkham Street owned by Daniel Averill; thence along the northerly line of said Cook’s designation to the westerly shore of said river, thence easterly along the northerly line of said river to the Short Line railroad bridge; thence across said river by the line of said bridge; thence easterly and southerly along the line of said river to the place of beginning, containing thirty-eight and one-half acres.