An Act amending the act of July 8, 1957 (P. L. 579, No. 321), entitled, as amended, "An act establishing minimum compensation and increments for members of the faculty and administration of the Thaddeus Stevens State School of Technology, providing leave of absence with pay for faculty members and the superintendent of the school and imposing duties on the Board of Trustees of such school and the Secretary of Education," adding to the schools covered by the act.