TY - JOUR T1 - Researches on the Theory of Invariants JF - Proceedings of the Royal Society of London (1854-1905) VL - 7 SP - 204 EP - 207 PY - 1854/01/01/ UR - http://dx.doi.org/10.1098/rspl.1854.0054 M3 - doi:10.1098/rspl.1854.0054 AU - Spottiswoode, W. ER -