"Watson-Odelca apparatus for Mass Radiography" colour silent advertising film (16mm, three copies) for mobile miniature radiography set, 1955-1960 Silent advertising film for mobile miniature radiography set
Two 16mm cineradiography films made with the Marconi image amplifier and telecine apparatus by Prof.G.H. du Boulay showing pulsatile movements of cerebrospinal fluid in human subjects under normal 16mm cineradiography films 1968
Five intestinal motility records each comprising record, together with 13 associated offprints documenting the motility studies of Dr. Ritchie and the Nuffield Dept. of Clinical Medicine, Oxford, 1961-1973 Five intestinal motility records each comprising record 1969-1970
