TY - JOUR T1 - Contributions to the History of Aniline, Azobenzole and Benzidine JF - Proceedings of the Royal Society of London (1854-1905) VL - 7 SP - 444 EP - 445 PY - 1854/01/01/ UR - http://dx.doi.org/10.1098/rspl.1854.0102 M3 - doi:10.1098/rspl.1854.0102 AU - Hofmann, A. ER -