1. Edelstein, S. M., Historical Notes on the Wet-Processing Industry, Dexter Chemical Co., Bronx, NY, no date.
2. Zahn, J., Bayer Farben Revue, 12, 32; 11, 75 (1967).
3. Edelstein, S. M., and H. C. Borghetty, The Plictho of Gioanventura Rosetti, M. I. T. Press, Cambridge, MA, 1969.
4. Robinson, R., “The Life and Work of Sir William Henry Perkin,” Proceedings of the Perkin Centennial 1856–1956, AATCC, 41 (1957).
5. Lehner, S., “America’s Debt to Perkin,” ibid., 269.