(No. 6100

Nalco Chemical Company, Claimant, vs. State of Illinois, Divison of Highways, Respondent.

Opinion filed August 30, 1971.

L. H. Lemieux, Attorney for Claimant.

William J. Scott, Attorney General; Saul R. Wexler, Assistant Attorney General, for Respondent.

Perlin, C.J.