And whereas it would be expedient that the absolute Owners of Land and Tenants in Tail in possession should have the Power of granting Land to a limited Extent for the Purpose of erecting Sites for Schools to be applied and used in and for the Education and Instruction of Persons intended to be Masters or Mistresses of Elementary Schools for poor Persons, without any Risk of such Grant being .defeated by the Death of the Grantor: Be it therefore enacted, That it shall be lawful for all Persons, being such absolute Owners or Tenants in Tail in possession as aforesaid, to grant, convey, or enfranchise, by way of Gift, Sale, or Exchange, any Quantity of Land, not exceeding in the whole Five Acres, to any Corporation Sole or Aggregate, or to several Corporations Sole, or to any Trustees whatsoever, to be held, applied, and used by such Corporation or Corporations or Trustees in and for the Erection of School Buildings and Premises thereon for the Purpose of educating and instructing, and of boarding during the Time of such Education and Instruction, Persons intended to be Masters or Mistresses of Elementary Schools for poor Persons, and for the Residence of the Principal or Master or Mistress and other Officers of such Institution ; and such Gift, Sale, or Exchange shall be and continue valid, if otherwise lawful, although the Donor or Grantor shall die within Twelve Calendar Months from the Execution thereof: Provided always, that it shall be lawful for the Trustees of such School Buildings and Premises to allow the same to be applied and used, concurrently with the Education and Instruction of such Masters or Mistresses, for the Purpose of boarding other Persons, and of educating and instructing the said Persons in religious and useful Knowledge.