Private papers of Professor Stephen Finney Mason, [1859-2007], including published articles and reprints by Mason, [1945-1990]; articles and photocopies of articles by others on Mason's research interests, [1859-2000]; lectures given by Mason; research notes and correspondence, including correspondence about scientists and historians including Professor Reiko Kuroda, Dr Robert Davis Peacock, Professor Mike Lappert, Professor Anthony James McCaffery, Dr George Tranter, Dr M P Melrose, Dr Tom Ziegler, Professor Martin Quack, Professor David Parker, Keith Hutcheon and Dr Jack Morrell.