Hugo Heinrich Wilhelm (Hugo) Müller (1833–1915)

German-born chemist. Studied chemistry, physics, mineralogy, and geology at Leipzig and Göttingen. Moved to London in 1854 to become assistant to Warren De la Rue at the De la Rue printing company. Studied coal-tar derivatives and chlorination of benzene, and worked on dyes and inks for security printing. With De la Rue, worked on celestial photography, the development of voltaic cells, and the study of electrical discharges in gases. His work in paper-making led him to study compounds in leaves; discovered naturally occurring flavone. President of the Chemical Society, 1885–7; of the Mineralogical and Crystallographic Society of Great Britain, 1901–4. Worked in the Davy–Faraday Laboratory, attached to the Royal Institution of Great Britain, 1902–14. Assumed British nationality, 1878. FRS 1866.