143 A.2d 417 BROX’S DAIRIES, INC. v. BOSTON AND MAINE RAILROAD. No. 4664.Supreme Court of New Hampshire Hillsborough.Argued June 4, 1958. Decided July 1, 1958. 1. Contributory negligence as a matter of law was established by the conduct of an operator of a trailer truck who was familiar with a grade crossing but drove into […]