The papers are extensive, relating to almost every aspect of Blackett's career in science and public life. There is biographical and personal material including large numbers of letters of congratulation received on the occasion of the various scientific and public awards and honours with which Blackett's achievements were recognised. There are records of his work on particle disintegration, cosmic rays, astrophysics and magnetism in the form of laboratory notebooks, working papers, correspondence, lectures, publications and broadcasts. There is documentation of his activities on various defence projects and as a member of government committees before, during and after the Second World War. Blackett's political interests are represented by material relating to the Association of Scientific Workers, Labour Party discussion groups on science and technology policy and the Ministry of Technology instituted after the Party's 1964 electoral victory. There are records of a wide range of science-related interests such as the history of science and technology, science, education and government, and nuclear weapons and disarmament, and of his overseas activities including material relating specifically to India and that concerned with matters more generally affecting developing countries.

A few lacunae in the surviving material have been identified. There are no documents relative to Blackett's service with the National Research and Development Corporation or the Department of Scientific and Industrial Research and, of his correspondence during the Second World War, only that for 1942 survives.

The papers of William Price, chiefly relating to spectroscopic analysis and photoionisation, comprise correspondence, lecture and teaching notes, notes compiled while reviewing scientific articles, original research notes, papers concerning Price's employment as an examiner, obituaries and reprints of journal articles, 1929-1993. These notably include correspondence with colleagues describing projects and experiments and sharing observations and data, 1942-1990; lecture notes and teaching papers compiled by Price on the theory of spectroscopy, theoretical and applied optics, especially microscopy, basic molecular chemistry, electron configurations and bond and dissociation energies of molecules, 1948-1978; notes compiled by Price for the peer review of articles and on Price's own published articles, including on the spectra of halogens, the structure of polyatomic molecules, on water and hydrides, the calculation of ionisation potentials, benzenes and hydrocarbons, the structure of the DNA molecule and natural fibres such as keratin, 1929-1977; original research notes on spectroscopic analysis, especially ultraviolet spectra of rare gases, ethylene, sulphur dioxide and other compounds, 1933-1986; papers relating to Price's work as an examiner including draft and complete examination question papers and correspondence, 1952-1978; papers concerning the membership by Price of various learned societies and attendance at scientific conferences and symposia, 1940-1992; obituaries and newspaper cuttings on Price and other distinguished scientists, 1976-1993; typescript copies and reprints of scientific journals containing articles by Price and others, on topics including spectroscopy, photoionization, ionisation potentials and electron configuration and bond and dissociation energies, 1945-1990.