147 A.2d 309 Giragosian v. Philadelphia (et al., Appellant). Supreme Court of Pennsylvania.Argued November 21, 1958. January 12, 1959. Negligence — Automobiles — Entering highway causing another vehicle to alter course — Legal cause — Evidence — Incontrovertible physical facts rule — Inapplicability — The Vehicle Code. 1. Where it appeared that the additional defendant […]