TY - JOUR T1 - Addition to Memoir on the Resultant of a System of Two Equations. JF - Proceedings of the Royal Society of London (1854-1905) VL - 16 SP - 155 EP - 156 PY - 1867/01/01/ UR - http://dx.doi.org/10.1098/rspl.1867.0028 M3 - doi:10.1098/rspl.1867.0028 AU - Cayley, A. ER -