This series contains material relating to Norman Dott's Conferences, visits, and lecture tours. Almost all the files in this section relate to overseas visits and conferences (though see Coll-32/E.12-E.13); the material is presented chronologically as far as possible. Cross-references to organisations, correspondence or lectures in other sections of the catalogue are given where possible. Many of the maior overseas tours include a programme with a list of lectures with dates and places where given. Dott made and kept notes, in varying detail, of names, addresses, careers and interests of many individuals he met in the course of travel, of the organiscition, methods and layout of the hospitals he visited, and of the papers and discussions at meetings. These often enable a picture to be established of the state of neurosurgery, its developments and leading figures, at a particular place and time. The more extended tours took place after Dott's retirement in 1962, when he was often invited to speak on his own specialty and also on hospital/ward planning and organisation, medical education and curriculum etc. See Coll-32/E.42, E.45 for statements of his plans and reasons for undertaking such tours.