Letter from [Alan Archibald Campbell] Swinton, to The Editor of The Times Refers to a paragraph on Wire Records of Sound in an issue of The Times, commenting that what is stated does not do justice to the claims of the well-known Danish physicist and telegraph engineer Dr. Valdemar Poulsen, the inventor of the Telegraphone as it used to be called. Discusses the history of the instrument. 2 November 1928