
    (No. 6106
    Atlantic Richfield Company, Claimant, vs. State of Illinois, Various State Agencies, Respondent.
    Opinion filed January 11, 1972.
    Atlantic Richfield Company, Claimant, pro se.
    William J. Scott, Attorney General; Saul R. Wexler, Assistant Attorney General, for Respondent.
   Perlin, C.J.  