“…The use of audio tape and 35 mm transparencies in combination for self‐instruction is not new in medical education. In 1957 John and Valerie Graves founded the Medical Recording Service which made audio tapes available to general practitioners, and their system expanded steadily so that they now have a library of tapes and transparencies of interest to people in all branches of medicine, including medical students (Graves, 1971). Harden, Wayne, and Donald (1968) were among the first to use tape slide presentations in undergraduate medical education at Glasgow, and a library of tape slide presentations has been built up at the University of Newcastle‐upon‐Tyne for the same purpose (Amos, Duncan, Gilder, Hall, and Smart, 1969), some being produced at Newcastle and some being borrowed from other centres.…”