When, in the judgment of the Board of Trustees of the Free Public Library, it is advisable to purchase land or erect buildings thereon, or both, or to enlarge or alter any building already erected thereon, the Board may certify to the Council the amount of money, in addition to such moneys as it may have on hand applicable to such purposes, necessary for the purpose of making such purchase of land, the erection of buildings or other improvements thereon and shall also certify therewith the total amount of moneys and funds available for the purchase of lands or erection of buildings and an estimated account of the amount necessary for the maintenance of the Library for the balance of the then current year.
A. 
Thereupon the Council may, by resolution, at its discretion, and with the approval of the Mayor, authorize and empower the Board of Trustees of the Free Public Library to expend such sums of money, in addition to the moneys belonging to it and not needed for the expenses of maintenance for the remainder of the then fiscal year, as the Council may seem proper for such purposes, not to exceed, however, the amount certified by the Board of Trustees of the Free Public Library.
B. 
Upon passage of such resolution by the Council, the Board of Trustees of the Free Public Library shall be empowered and authorized, with the consent of the Mayor, to purchase real estate, and to erect buildings and make improvements thereon, and to expend moneys therefor to the amount of such appropriation and surplus.
The title of any real estate so purchased shall be taken in the name of the Borough. The use and control of such real estate shall be in the Board of Trustees of the Free Public Library so long as it shall be used for Free Public Library purposes.