TY - JOUR T1 - Notes of Researches on the Poly-Ammonias.--No. VII. On the Diatomic Ammonias JF - Proceedings of the Royal Society of London (1854-1905) VL - 10 SP - 224 EP - 234 PY - 1859/01/01/ UR - http://dx.doi.org/10.1098/rspl.1859.0048 M3 - doi:10.1098/rspl.1859.0048 AU - Hofmann, A. ER -