Dreyfus, Camille Edouard (11 November 1878–27 September 1956), industrial chemist and entrepreneur, was born in Basel, Switzerland, the son of Abraham Dreyfus, a banker, and Henrietta Wahl. Camille and his younger brother, Henri (later Americanized to Henry), both received their education at the University of Basel, being awarded their Ph.D.s in chemistry in 1902 and 1905, respectively. Camille also pursued postgraduate study at the Sorbonne in Paris until 1906. After working several years in Basel to gain industrial experience, Camille and his brother established a chemical laboratory in their home town. Seeking a product that the public would readily buy, they developed a synthetic indigo. Although they made some money in this venture, it quickly became clear that synthetic indigo did not have a sufficient market. Consequently the Dreyfus brothers focused their attention on celluloid, which at that time was produced only in a flammable form. They recognized that a large potential market existed for nonflammable celluloid, if it could be developed. They focused on cellulose acetate and were shortly producing one to two tons per day. Half of their output went to the motion picture industry for film, with the other half going into the production of toilet articles....