
    (No. 6273
    Engineering Service Corporation, Claimant, vs. State of Illinois, Department of Mental Health, Respondent.
    
      Opinion filed February 17, 1972.
    
    Engineering Service Corporation, Claimant, pro se.
    William J. Scott, Attorney General; William E. Webber, Assistant Attorney General, for Respondent.
   Perlin, C.J.  