Portrait of Henry Bohn Haas (1902-1987), a specialist in organic chemistry who is credited with the discovery of gas chromatography. Haas was born in Huntington, Ohio and received his doctorate from Ohio State in 1925. Following graduation, he joined the faculty of Purdue University as an assistant professor of chemistry in 1928 and served as head of the chemistry department from 1932-1949. During World War II, Haas joined other scientists working on the Manhattan Project and, over the course of his career, established himself as an authority on various topics in organic chemistry, including the study of active carbon, nitration, chlorination, and fluorination. In 1949, Haas entered the field of industrial chemistry as manager of research and development for the General Aniline and Film Corporation and later became president of the Sugar Research Foundation, an industry-sponsored organization dedicated to discovering new uses for sugar. Haas received the Perkin Medal of the Society of Chemical Industries (1968), as well as the gold medal of the American Institute of Chemists (1969).