A file of miscellaneous correspondence connected to 'C', the chief of the Secret Intelligence Service (MI6). Amongst the documents in this file are letters discussing intelligence sources in the Netherlands and Dutch alarm at the possibility of a German invasion; a report of a conversation in Washington between Norman Davis and Cordell Hull about Anglo-Japanese diplomacy, and the possibility of multilateral armaments agreements; memoranda describing intelligence on possible German secret weapons from German informants; and a report discussing the possible nature of the new German weapons, including bacterial, entomological, and chemical weaponry, gliding torpedoes, inflammable liquid, and a death ray.