Correspondence to M.Ps and prominent members of society concerning the “Clean Air Act” and atmospheric pollution, usually Pybus provides the recipient with details of his career, research, and reprints of “Cancer and its Cause” and/or “Fumifugian”. He also mentions the work on British natives that have emigrated to South Africa and New Zealand and have been diagnosed with lung cancers. Tables from research are available. Includes some unreadable signatures and some have multiple letters to and from. 1963 – Mr. Rodgers 1963 - Mr. Wilson 1967 – John Hall 1967 – Arthur Blenkinsop 1967 – Dame Irene – this includes a letter regarding the Abortion law and Pybus’ opinion 1967 – R. W. Elliot 1967 – Bob Edwards (amending Clean Air Act) 1966 – Lord Wynne-Jones 1961 – Dr Hill 1961 – L. A. Pavitt 1961 – K.F. Munn 1961 – Prime Minister 1961 – Irwin 1961 – Frank F. Main (several receipt letters) 1961 – Dr Main 1961 – Ministry of Health 1961 – Dr Godber 1970 – Dr Griffiths 1972/1973 – Mr. Heath (extensive letter including notes) 1965 (Questions and Answers from House of Commons – Mr. John Hall / Mr Anthony Crosland regarding air pollution) 1967 – M. Hall 1970 – Christopher Chataway 1965 – John Hall (extensive notes and letters) 1959 – Fergus Montgomery 1956 – Mr. Turton 1955 – G. F. Davies 1958/1959 – Harry Randall – this letter concerns a visit from Randall and his wife 1966 – Quentin Hogg 1964 – Mr. P. Belcher (newspaper clipping “Bulgaria finds tobacco with no nicotine” – notes with this) 1963 – Lord Francis-Williams 1959 – Lord Hailsham 1959 – B. Laughland 1969 – Lord Douglas of Barloch (includes correspondence, and information on Fluoridation of Public Water Supply) 1968 – Robert Maxwell 1955 – Gerald Nabarro 1963 – Harold Wilson