Correspondence, chiefly to Bateson, from various individuals, including F.W. Mott and J.P. Lotsy. Chiefly relating to features of plants. There is also some discussion of right and left-handedness in humans.
Correspondence with AD Hall: mainly about varieties of tulip (in alphabetical order) and some miscellaneous correspondence, notes and lists
Copy of letter to GR from CDD Darlington, inviting him for an interview at JI, 8 Jan 1945. Copies of correspondence between Rona Hurst and Sylvester Bradly, regarding the 'British Rose Survey', 1952. Letter to Elizabeth Stratton (JIC) from GR, regarding his time working at JI (1945-1961) under Darlington and Dodds, 18 June 2000. Correspondence between Sarah Wilmot (JIC) and GR, regarding history of JI and the rose collection and donations from GR to the JI archives. 2007-2011.
Roy Markham correspondence 1968-1981 and Royal Microscopial correspondence, 1971-2.