Including "The British Nationality Act 1948", a Conservative Research Department memorandum by John McDonnell, 1 July 1968; a Hansard copy of the debate on the Second Reading of the Race Relations Bill, including Quintin Hogg's speech, partly responding to Enoch Powell's "Rivers of Blood" speech, 23 April 1968; a letter from James Callaghan, about the resolution on immigration passed by South Oxfordshire Conservative and Unionist Association, giving details of the voucher scheme, 10 June 1968; a letter from George Thomson, about the repeal or amendment of the British Nationality Act 1948, 27 June 1968; a copy of Enoch Powell's "Rivers of Blood" speech, reprinted by the Monday Club, May 1968; and a letter from Sir David Renton, 27 June 1968.