Notwithstanding anything contained in the titles under which any of the churches or manses of the parishes quoad omnia referred to in section twenty-four of the principal Act and specified in the Eighth Schedule thereto are held, the General Trustees shall, upon the same becoming vested or having become vested in them, in terms of the said section of the principal Act, have power, subject to the consent of the General Assembly [F1or any body to which the General Assembly may delegate the necessary powers], . . . F2, to sell or otherwise dispose of any of the said churches or manses or any glebes or other subjects connected therewith, so far as such glebes or other subjects shall be vested in the General Trustees, and the General Trustees shall apply the proceeds thereof in the first place to meet the proper requirements of the parish as such requirements may be determined by the General Assembly, or by any body to which the General Assembly may delegate the necessary power, and any remainder after these requirements have been fully met shall be applied for such ends, uses and purposes as the General Assembly [F1or any body to which the General Assembly may delegate the necessary powers] may direct: Provided always that no ground used as a burial ground shall be put to any other use.