Portrait of chemist and prolific inventor Carleton Ellis (1876-1941) best known for his involvement in the development of margarine, polyester, anti-knock gasoline, and paint and varnish remover.

Carleton Ellis was…

William Henry Perkin depicted in his laboratory. Perkin, center, examines test dyeing of silk taffeta with mauve aniline dye. Left, his father, the backer of the plant, stands behind Perkin and admires the fabric. In…

Printed portrait of French scientist and professor Jules Francois Joubert (1834-1910), who assisted French chemist, biologist and microbiologist Louis Pasteur (1822-1895). Joubert collaborated with Pasteur in 1877,…

Portrait of Dr. C. Scott Althouse (1880-1970), founder of the Althouse Chemical Company. A graduate of the Philadelphia Textile Institute (1900), Dr. Althouse worked with his father dyeing textiles before founding the…

Portrait of W. H. (William Henry) Perkin (1838-1907). Known as the father of the synthetic chemical industry, Perkin created the first synthetic dye, mauveine, in 1856, while attempting to create an artificial version…

Portrait of William Henry Perkin (1838-1907). Known as the father of the synthetic chemical industry, Perkin created the first synthetic dye, mauveine, in 1856, while attempting to create an artificial version of the…