Provided alwaies and be it futher enacted by the authority aforesaid That any Lease or Leases made or to be made by his Majesty His Heires or Successors to any person or persons whatsoever for any terme or termes of yeares not exceeding the terme of One and thirty yeares in possession of the Coalmines and Quarries of Grindeston in the said Forrest or any part thereof shall be of like force as if this Act had never been made Except of such Coalmines as are or shall be in any part of the Eleven thousand Acres allotted for his Majesties Inclosure and as shall continue inclosed.