An Act amending Title 11 (Cities) of the Pennsylvania Consolidated Statutes, in city engineer, further providing for appointment of city engineer, providing for waiver and further providing for control of engineering matters, for duties, for certifying commencement and completion of municipal improvements and for entering upon property for surveys; in surveys and surface support in coal mining areas, further providing for survey of mines and for operators to furnish maps and contents; and, in corporate powers, further providing for regulation of division fences, party walls and foundations.