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Draft reports (mostly unpublished) with notes and photographs: incompatibility in Linaria, Salpiglossis (1959). Rye (1953). Natural crossing in Melandrium. Drosophila (1956). Tomato. Draft project outline and notes: rooting in impatiens [c.1974]. Incompatibility in Linaria and Nolana. [2 sub-files] (1958)

Pollen tube growth and breeding systems: experimental data, notes, sketches.

"Misclassification of Cy and L4 mutants", "Emergence patterns in two D. melanogaster populations", "Environmental effects upon expression" (major report on temperature experiments).

Data tables, notes on results.

Copies of standard descriptions of the 10 'Merton' cherries (some with extra detail), and of MB Crane/ D Lewis selections at NFT and being virus tested.

Notes from literature on cherry varieties resistant and susceptible to bacterial canker. Also initial observations on canker susceptibility of mature trees at Bayfordbury.

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.