
    (No. 73-CC-156
    Board of Trustees of the State Employees’ Retirement System of Illinois, on Behalf of the Participants, Claimant, vs. State of Illinois, Department of Mental Health, Respondent.
    
      Opinion filed May 8, 1973.
    
    Board of Trustees of the State Employees’ Retirement System of Illinois, on Behalf of the Participants, Claimant, pro se.
    William J. Scott, Attorney General; Douglas G. Olson, Assistant Attorney General, for Respondent.
   Per Curiam.  