The petition is granted, except as to the question whether the jury could have found respondent guilty of a violation of Rule 152 of the Interstate Commerce Commission. The judgment is reversed. Tiller v. Atlantic Coast Line R. Co., 318 U. S. 54, 67-8; Bailey v. Central Vermont R. Co., 319 U. S. 350, 353-4; Lavender v. Kurn, 327 U. S. 645.