Letter from R Prosper Liston, Chairman, British Medical Association, Tavistock Square, London to Howard Walter Florey Are making series of films under generic title, 'Medical history in the making' - advances in British medicine are described by means of interview - anxious to have film on antibiotics - asks if Florey would do this - comments on work involved - would be pleased to discuss this with Florey. 7 March 1961