Letters to Robert Robinson, surnames beginning Mi Correspondence with the following: Karl Miescher, concerning work at CIBA in Basle, and requesting a sample of phthioic acid. Accompanied by a preprint of a paper in German (1950); F M Miller, concerning studies of the structure of alkaloids of achellia millifolium (1951); M J Millson, concerning akuammine (two letters, one incomplete) (1952); William F Mitchell, concerning Robinson's impending visit to the USA (1968). 1950-1968