University College London Includes: -Teaching activities (files 1-97). Arranged in the following order: Undergraduate (Lonsdale lectured in crystallography to 2nd and 3rd year Special Chemistry students); Postgraduate; Miscellaneous papers. -Lab personnel and application files (files 405-451) Correspondence, with related papers, principally with research students and workers at Lonsdale's laboratory; a few other individuals are included. Most of the material relates to proposed research projects, including funding and recommendations, etc. There is also later correspondence between Lonsdale and some of her former research students. Also 11 folders of correspondence etc. chiefly re: applications for postgraduate research, 1947-1973; list of staff and students and timetables for courses, 1949-c1954; small notebook containing manuscript notes by Lonsdale. The original order (alphabetical by name of individual) has been preserved. Any titles found on the original files have been produced. -Administration (files 405-451) -Orders for Lab Equipment (452-484) -Open Days 4-5 May 1954 (files 485-488) -Miscellaneous Papers (files 489-501) 1943-1974