By Sigmund Freud, Joyce Crick, Ritchie Robertson (Reader in German and Fellow, Reader in German and Fellow, St John's College, Oxford)
By DK
By Richard Spilsbury
By Jamila Groves, Consulting editor: Lesley Bacon, Consulting editor: Ruth Cochrane
By Knight, Siân
By Julian, Desmond G., Campbell-Cowan, J., McLenachan, James M., Desmond G. Julian, J. Campbell-Cowan, James M. McLenachan
By Harrison, Mark
By Sue Lloyd, Wernham, Sara
By Raj Thakkar
By Traynor, Tracy
By Geoff Fowler, Sue Muggeridge
By Rob Dransfield, David Needham
By Hunt, Mr Roderick, Ruttle, Ms Kate, Young, Ms Annemarie, Brychta, Mr Alex
By Middleton, Haydn
By Penrose, Jane, Stuart, Jon
By Speed, Brian, Gordon, Keith, Evans, Kevin
By Tony Bradman
By Hirst, Keith, Shields, Jonathan
By Michael Hoskin (, Fellow of Churchill College, Cambridge)
By Michael J. Crawley (Imperial College of Science, Technology and Medicine, UK)
By Martin Bland (Professor of Health Statistics, Professor of Health Statistics, University of York)
By Peter S. Ungar (Distinguished Professor and Chair of Anthropology, Distinguished Professor and Chair of Anthropology, University of Arkansas)
By Kerr, Fergus
By Pamela Oldfield
By School Mathematics Project
By B.D. Bunday, H. Mulholland