The article offers information on Yellapragada Subba Row, a chemist and Director of Lederle Research Laboratories at Pearl River, New York. Topics discussed include birth of Subba Row in Bhimavaram in Andra Pradesh, India, in 1896, his study at the School of Tropical Medicine of London University, London, England, and his work on liver extracts and isolation of folic acid that proved beneficial for tropical sprue.