An Act amending the act of March 10, 1949 (P.L.30, No.14), known as the Public School Code of 1949, in preliminary provisions, further providing for adjustments based on Consumer Price Index; in grounds and buildings, further providing for work to be done under contract let on bids and exception; in books, furniture and supplies, further providing for purchase of supplies; in Thaddeus Stevens College of Technology, further providing for contracts for construction, repair, renovation or maintenance; and, in State System of Higher Education, further providing for project contracts and for powers and duties of institution presidents.