Field record cards, slips, notebooks (Ll. Iorwerth Jones),
- E39.
- Cyfres
- 1928-1940.
Field record cards, slips, notebooks (Ll. Iorwerth Jones),
Miscellaneous experiments (?Agronomy),
Correspondence, draft notes and capital equipment,
Welsh Plant Breeding Station Publications,
Papers of E. T. Jones re Queen' s visit,