Material relating to the British Association of Paediatric Surgeons (BAPS), 1956-74 (Dott was and Honorary Member from 1955). The material consists of mainly printed items relating to meetings, congresses and affairs of BAPS, conference programmes, lists of members, etc. Some brief correspondence is included, and also manuscripts of Dott's introductory remarks to the Macarthur Lecture given by Doctor E. Sandegard at the BAPS meeting in Edinburgh, dated June 1957.