TY - JOUR T1 - Notes of Researches on the Poly-Ammonias.--No. XII. Action of Cyanate of Ethyl on Urea JF - Proceedings of the Royal Society of London (1854-1905) VL - 11 SP - 273 EP - 275 PY - 1860/01/01/ UR - http://dx.doi.org/10.1098/rspl.1860.0056 M3 - doi:10.1098/rspl.1860.0056 AU - Hofmann, A. ER -