TY - JOUR T1 - On Curves of the Third Order JF - Philosophical Transactions of the Royal Society of London (1776-1886) VL - 148 SP - 535 EP - 541 PY - 1858/01/01/ UR - http://dx.doi.org/10.1098/rstl.1858.0026 M3 - doi:10.1098/rstl.1858.0026 AU - Salmon, G. ER -