Railway bills. Return of railway bills introduced from 1868 to 1872 inclusive, containing provisions for amalgamation of or working arrangements between railway companies in Great Britain, showing the number of bills introduced and passed respectively in each year, with the mileage and description of the several lines affected thereby; accompanied by a map showing the systems of railways in Great Britain now under the control of the several working companies (in continuation of parliamentary paper, no. 242, of session 1867-8) [electronic resource].