147 A. 64 Foresman et al. v. Gregg Township et al., Appellants. Supreme Court of Pennsylvania.May 13, 1929. July 1, 1929. Public officers — Township supervisors — Contracts — Illegal contracts — Purchase of tractor — Advice of assistant engineer prior to contract — Acts of July 14, 1917, P. L. 840; May 17, 1921, […]