
    (No. 6403
    Morton Salt Company, Claimant, vs. State of Illinois, Department of Transportation, Respondent.
    Opinion filed March 24, 1972.
    Morton Salt Company, Claimant, pro se.
    William J. Scott, Attorney General; Saul R. Wexler, Assistant Attorney General, for Respondent.
   Perlin, C.J.  