| Description | Includes four letters to his mother, all signed 'Robbie': concerning his return from visit to U.S.A. about penicillin, 1943; concerning Presidency of the Royal Society, 1945; letter dated 1948; concerning conferral of Order of Merit, 1949. Also contains two letters to his sister Dorothy (Mrs. Bell), mainly about mountaineering, from 1913 and 1914. |