The volumes in this series contain transcripts of the Witness Seminars at which significant figures in twentieth-century medicine are invited to discuss specific discoveries or events in recent medical history. Every volume is freely available to download. Hard copies of volumes 21–42 may also be purchased from www.amazon.co.uk or www.amazon.com or from good booksellers quoting the ISBN for £6/$10 each plus postage.
All papers and records collected during the organization of the meetings and editing of the transcripts are deposited in Archives and Manuscripts, Wellcome Library, London, in collection GC/253.