Painting depicts German organic and theoretical chemist August Kekulé (1829-1896) in his classroom at the University of Ghent in the fall of 1864.
Left to right: assistant Hermann Wischelhaus, group leader Franz…
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…