Correspondence between Clifford Charles Butler and the Royal Society General correspondence following Butler's election to the Royal Society: on admission arrangements, fees and Yearbook entry. Letters to and from the Assistant Secretary, David Christie Martin and the Librarian, Igor Kaye. The original file featured the typed name and address: 'Professor C.C. Butler, F.R.S., Department of Physics, Imperial College of Science, Prince Consort Road, S.W.7'. 16 March-9 June 1961