And be it enacted, That such Heir of Entail in possession, and the Heirs substitute to him in their Order successively, shall be Bound, each during his own Possession of such Estate, yearly and each Year, to pay and keep down the Interest on such Bonds and Dispositions in Security accruing during their Possession respectively of such entailed Estate ; and the Remedy competent to the Creditor against the Fee and Rents of such Estate on such Bonds and Dispositions in Security shall be limited to the Principal Sum therein contained, with Two Years Interest thereon, and corresponding Penalties ; without Prejudice to the Remedy of the Creditor for any further Arrears of Interest against the Heir or Heirs in possession bound to pay and keep down the same, and against his or their Representatives, or his or their separate Estate or Estates, including the Rents of the said entailed Estate during his or their Possession of the same.