Letters to Robert Robinson, surnames beginning Ro Correspondence with the following: Gertrude Maud Robinson, concerning a paper she co-authored with T B Heaton for 'Nature', titled "Biological Properties of a Substance Isolated from Wheat Middlings and of Hydroxymethylfurfuraldehyde" (1950); Maurice Arthur Thorold Rogers, concerning work at ICI with a-naphthol and b-naphthol, including a list of literature references (1954); Hubert Roth, in German (1936). 1936-1954