TY - JOUR T1 - Note on an Erroneous Extension of Jacobi's Theorem JF - Proceedings of the Royal Society of London (1854-1905) VL - 21 SP - 119 EP - 121 PY - 1872/01/01/ UR - http://dx.doi.org/10.1098/rspl.1872.0024 M3 - doi:10.1098/rspl.1872.0024 AU - Todhunter, I. ER -