Correspondence and papers of Sir Harold Brewer Hartley FRS, physical chemist Correspondence and papers of Sir Harold Brewer Hartley, physical chemist, largely in relation to his editorship of the history of science journal 'Notes and Records of the Royal Society' (1952-1970) and his chairmanship of the British National Committee for the History of Science. Remaining material includes some of Hartley's early investigatory work into scientific publishing (1947-48), and some biographical materials gathered after his death in 1972. 1930s-1970s