
    (No. 6563
    Chicago Housing Authority, Claimant, vs. State of Illinois, Department of Public Aid, Respondent.
    
      Opinion filed July 14, 1972.
    
    Calvin H. Hall, Attorney for Claimant.
    William J. Scott, Attorney General; Saul R. Wexler, Assistant Attorney General, for Respondent.
   Berlin, C.J.  