Symposium on Swimming and Flying in Nature, California Institute of Technology, Pasadena, California, USA, 8-12 July 1974 Contents of folder inscribed 'Symposium 1974 Pasadena Calif divided into five for ease of reference: correspondence re arrangements and arising, programme, general information, abstract of Lighthill's paper etc. Lighthill was a member of the Technical Program Committee, gave the opening lecture and acted as a session chairman. See also B/40-B/46. 1973-1975