Letter from Howard Walter Florey to Stephen Usherwood, School Broadcasting Department, BBC, Broadcasting House, London Thanks for script - thinks it is a long way from giving children an idea of how scientific work is done or how penicillin came to be introduced into medicine - distrusts broadcasts on scientific matters that pass through hands of scriptwriters - has no time to go into script in detail and does not want to ask his colleagues to spend time on it. 6 March 1961