— Employer’s duty to keep records, § 34-2-11. 79 ‘‘Common carrier’’ defined. Liability of common carrier by railroad for personal injury or death of employee generally. Contributory negligence of employee. Assumption of risk where employer is contributorily negligent. Employer exemptions from liability void; allowable setoffs. Liability of receivers, trustees, and assignees of railroad companies for coemployees’ negligence; lien on railroad company income. Limitation period for institution of action. Liability of railroad company to its employees for negligence of employees of another railroad company using same track. Recovery by employee working beyond limited hours of service. T.34, C.7 LABOR AND INDUSTRIAL RELATIONS T.34, C.7, A.1