Katharine Hope Coward: A Pioneering User of Chromatography

The status of vitamin and carotenoid research in the first two decades of the 20^th Century is outlined and the activities of Katharine Hope Coward in applying chromatography are discussed. Coward can be considered as the fifth person utilizing chromatography in the dormant period between Tswett’s fundamental work, in 1906–1911, and the resurrection of the technique in the early 1930s.