An Act amending the act of March 10, 1949 (P. L. 30, No. 14), entitled "Public School Code of 1949," further providing for filling vacancies on certain boards of school directors, for group insurance contracts and for property tax assessments in certain school districts; providing for business administrators; further providing for the duties of the State Board of Education; further providing for an economic supplement; further defining "personal income valuation" and "market value/income aid ratio" to expand tax credits for income earned out-of-State; further providing for subsidies; providing for equipment grants; and making editorial changes.