This sub-series consists of 65 files containing material relating to Norman Dott's membership of the Society of British Neurological Surgeons (S.B.N.S.), 1926-1973. Dott was a member of the Society from its foundation in 1926 to 1962, when he was elected an Honorary member. He served as Assistant Secretary 1927-1928 and as President 1938-1945. Dott was a loyal member of the Society and participated as fully as possible in its professional meetings, its business meetings and various ad hoc committees instituted for special purposes from time to time, particularly those concerned with training, staffing and status in the speciality. The papers contain on almost complete run of programmes of the Society's meetings from 1926-1973, with accompanying minutes, agendas, etc. in varying detail. In his later years, Dott was unable to attend all meetings, especially those held abroad in conjunction with foreign societies federated to the World Federation of Neurological Societies. The more detailed records and correspondence of the period up to c 1966 shows the important part he played, with Sir Geoffrey Jefferson, Hugh Cairns and other Founder Members, in the affairs of the Society. The correspondence with Jefferson in particular is relaxed and informative, and often includes details of professional cases and treatment, and some personal/social news, as well as S.B.N.S. matters. The papers are presented chronologically as far as possible, with an indication of the contents of each file.