Personal papers relating to the Science Research Council, including correspondence with Sir Harry Melville; a Science Research Council press notice relating to the Radio and Space Research Station; a note on probable provisions of the Science Research Council superannuation scheme; correspondence with the Royal Society; minutes of meetings; a first draft by Professor H. Bondi of a paper on astronomy in Great Britain; a note on the payment of fees and travelling and subsistence expenses to members of boards and committees of the Science Research Council; a joint statement by the Royal Society and the Science Research Council on the organisation of British scientific space research; and correspondence with R. Harrison of New South Wales, Australia, on Harrison's theory of 'cospiring'.