This series consists of 73 files containing material relating to Edward Appleton's lectures, speeches and publication. Files Coll-37/D.1-D.64 comprise manuscript or typescript drafts for shorter talks or writings by Appleton. Some are scientific papers in the usual sense, but many are directed at a more general public through less specialised journals or by radio and television. the majority are additional to the published bibliographies in biographies of Appleton. The material is presented as a chronological sequence so far as this is ascertainable. Coll-37/D.69-D.71 contain additional material received too late for inclusion in the main sequence. Attention is drawn to D.72, a folder of press-cuttings of articles written by Appleton for World-Radio, Wireless World and other journals during the 1920s and 1930s. These are not recorded elsewhere.