71 Pa. Stat. § 1806
Thirdly. That all islands, islets and dry lands, within the bed and between the shores of the said river, and between the said Station-Point northerly and the falls of Trenton southerly, shall as to jurisdiction, be hereafter deemed and considered as parts and parcels of the state to which such insulated dry land doth lie nearest, at the time of making and executing this agreement; and that from said falls of Trenton to the state of Delaware, southerly; Biles's island, near Trenton; Windmill island, opposite to Philadelphia; League island, Mud or Fort island, Hog island, Little Tinnicum islands shall be annexed to the state of Pennsylvania, and considered as parts and parcels thereof; and that Biddle's or Newbold's island, Burlington island, Petty's island, Red Bank island, Hermanus Helm's island, Chester island, and Shiever's island shall be annexed to the state of New Jersey, and considered as parts and parcels thereof; and that all other islands within the said river between the falls of Trenton and the state of Delaware, which are not herein before particularly enumerated, shall be hereafter deemed and considered as parts and parcels of the state, which such island doth lie nearest at the date hereof, and that all islands which may hereafter be formed within the said river shall be classed and annexed to the jurisdiction of either state, according to the same principle.
71 P.S. § 1806