Section 6. Acquisition of Site.--The Superintendent of Public Instruction, with the approval of the governor, may accept a gift of land suitable as a site for the school or, if no gift of a suitable site is offered, he shall, with like approval, select for acquisition, either by the Department of Property and Supplies in the name of the Commonwealth or by The General State Authority with funds of the Authority, a tract of land located in or adjacent to the borough of Lewistown, for the erection and construction and the furnishing and equipping thereon by The General State Authority of The Pennsylvania State Firemen's Training School. The title to the lands so acquired, whether by gift or otherwise, shall be approved by the Attorney General. If it shall be found that the Commonwealth owns State lands suitable in whole or in part for such use, such lands may be designated by the Department of Public Instruction, with the approval of the Governor and the department, board or commission having possession and control of the same, and used for such purpose. Any additional lands necessary may be selected and acquired as hereinbefore provided.