Holograph manuscript: 'A Theory of Chromosomal Rearrangements' by J B S Haldane, 16 pp.
Holograph manuscript: 'A Theory of Structural Changes in Chromosomes', by J B S Haldane, 25pp., includes a rough illustration for 'My Freind Mr Leakey' by J B S Haldane, Cresset Press, London, 1937.
D Joy and E J Wibberley, 'A Tropical Agriculture Handbook', (London, Cassell Ltd, 1979, 2nd ed 1981). Soft back.
A Unique Descriptive Catalogue of All-The-Year-Round Hardy Heathers and Other Peat-Loving Subjects, Maxwell & Beale, The Dorset Nursery and Lavender Farm, Broadstone, Dorset
A Wealth of Bloom - A Catalogue of Michaelmas Daises, grown by Mrs Rogers Bull, Duston House, Northampton
AEP Conferences: Copenhagen 1995, Paris 1994 and 1996: programmes, questionnaires, newsletters, correspondence etc. AAIR/ECLAIR Programme: 'Improvement of faba bean varieties: a joint approach for crop diversification in the European Union': correspondence about initial aims etc.
Notebook: yeast and RNA experiment notes, inscribed 'Abrell', possibly belonging to John William Abrell, an American student who worked with Markham in 1965.
Register of cherry stones and budwood received, and JI material retained (the latter with record of germination and of mutations observed in resultant seedlings), and of material sent out to other workers in the UK and overseas.