In the Matter of the Petition of Public Service Electric and Gas Company for Approval of an Increase in Electric and Gas Rates and for Changes in the Tariffs for Electric and Gas Service, P.U.C.N.J. No. 11, Electric and P.U.C.N.J. No. 10, Gas, Pursuant to R.S. 48:2-21 and R.S. 48:2-21.1