And be it further enacted. That it shall and may be lawful for the Commissioners of His Majesty's Woods, Forests, and Land Revenues for the Time being, from Time to Time as advantageous Purchases may arise or occur, by and with the Consent and Approbation of the Lord High Treasurer or Commissioners of the Treasury for the Time being, or any Three of them, to contract for and Purchase for and on the Behalf of His Majesty, His Heirs or Successors, any Estates, Manors, Lordships, Messuages, Lands, Tenements, or Hereditaments in Fee Simple, or any Copyhold Lands or Hereditaments which can be procured on fair and reasonable Terms, situate and lying contiguous or near to any of the Royal Forests, or any extensive Estates already forming Part of the Possessions of the Crown, and which from their Situation or other Circumstances may be conveniently placed wholly or principally under the Management of the Officers or Agents having already the Care of such Forests or other Estates of the Crown, under the Superintendence and Controul of the Commissioners for the Time being of His Majesty's Woods, Forests, and Land Revenues, and which on those Accounts, or for any other Reason, shall in their Judgment be desirable to be Purchased for and on the Behalf of His Majesty, His Heirs or Successors; and all such Estates, Manors, Lordships, Messuages, Lands, Tenements, and Hereditaments so to be Purchased, as well as the said Manors, Lordships, Messuages, Lands, Tenements, and Hereditaments comprized in the said recited Articles of Agreement, shall, on the Completion of the respective Purchases thereof, become Part of the Land Revenues of the Crown within the Ordering and Survey of the Exchequer in England, and shall be fettled and administered to the same Uses and in the same Manner as such Land Revenues now are or hereafter may be fettled or administered.