Provided alwaies That nothing in this Act contained shall abridge or prejudice the Mayor Aldermen and Burgesses of Pontefract for the time being and their Successors in claiming demanding or receiving an ancient Toll of Four Pence for every Vessell or Boat having a Cock-Boat with it passing upon any Part of the River Aire between Temple-Hurst and Knottingley-Mills and an ancient Toll of Two Pence for every other Vessell or Boate not haveing a Cock-Boat with it passing upon any Part of the River Aire between Temple-Hurst and Knottingley Mills aforesaid but that it shall and may be lawfull to and for the said Mayor Aldermen and Burgesses of Pontefract for the time being and their Successors to claime demand or receive the said ancient Tolls in the same Manner and Forme as they might have done before the makeing of this Act of Parliament and not otherwise Any thing herein contained to the contrary thereof in any wise notwithstanding.