An Act amending the act of May 21, 1943 (P.L.571, No.254), known as The Fourth to Eighth Class and Selective County Assessment Law, defining "house trailer" or "mobilehome"; further providing for subjects of taxation enumerated; and repealing provisions relating to limitation upon taxation, valuation of mobilehomes or house trailers, report to assessors of mobilehomes or house trailers and mobilehomes and house trailers to be assessed in name of owner.