Files, 1911-1921, entitled (fols. 1-125) 'Transferring of Medical benefits from Societies to Insurance Committees', papers of the British Medical Association concerning amendments to National Insurance Bill, 1911, including the State Sickness Insurance Committee; (fols. 126-291) 'Sundry leaflets etc. with Bill of First Campaign', printed and others papers, 1913-14, concerning attempts to change the National Insurance Act, and (fols. 292-451) 'National Health Insurance: Proceedings of Parliament', printed and other papers, 1911-1921, including (fols. 415-451) items published by the Insurance Committee for the County of London, 1919-1920.