Papers comprising laboratory notebooks, articles, lectures, correspondence and photographs. Also includes records of the Kapitza Club, 1922-58 and 1966, and copy papers of the Maud Committee, 1940-1. With offprints of papers by Ernest Rutherford, 1872-1913.

This collection has an 'Associated' section, consisting of material from one or more sources distinct from the main series, potentially including material about, but not created, accumulated or owned by, the subject of the collection.