The archive comprises the minutes and reports of the Basic Research Fund, 1965-70, and the minutes of the Steering Committee, 1967-68; General Purposes Committee (later the IOR Affairs Committee), 1969-73; Industrial Programme Group, 1969; Permanent Staff Group, 1969-71; and the Progress and Planning Committee, 1967-69. It also holds the IOR Newsletter, 1969-70; the 'T-series' of IOR reports, 1963-67; reports and memoranda, 1965-80; and the private papers of Neil Jessop, for 1962; John Stringer, 1950-95; and John Friend, 1966-95.
The archive has been catalogued to file level. A copy of this catalogue is available both online and in paper format in the Centre's searchroom, at the National Register of Archives in London and in Chadwyck-Healey's National Inventory of Documentary Sources.
All files were originally given a running reference number by the IOR and these reference numbers have been incorporated into the Modern Records Centre's reference scheme. In some cases a number was not issued by the IOR and this has been noted in the list as [no. not used].
The files cover a wide range of subjects and were given the next number in the series regardless of content. Thus, for example, MSS.335/IOR/26 is a training report and MSS.335/IOR/27 is the minutes of the Basic Research Fund. An index has thus been compiled for the paper version of this list to help identify the minutes of various committees and to the newsletters. Minutes relating to the advisory and industrial panels of the IOR can also be found in the papers of George Barnard (MSS.335/MIS/2).