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reports, with summaries of papers, papers and circulars; progress reports from members.

Correspondence, including with G D H Bell, lists of barleys in museum

Report from the National Physical Laboratory, Teddington: report on photometer tests, letters to G H, graphs and report.

Correspondence, accounts, reports etc.

Material relating to the National Rose Species Collection including correspondence, minutes, reports, an indexed catalogue and notebooks, 1948-1961 and the Keeper of the Rose Collection, Gordon Rowley including correspondence, publications