TY - JOUR T1 - Contributions towards the History of the Monamines. --No. IV. Separation of the Ethyl-Bases JF - Proceedings of the Royal Society of London (1854-1905) VL - 11 SP - 66 EP - 68 PY - 1860/01/01/ UR - http://dx.doi.org/10.1098/rspl.1860.0012 M3 - doi:10.1098/rspl.1860.0012 AU - Hofmann, A. ER -