TY - JOUR T1 - Note to a Paper Read before the Royal Society on the 11th of May, 1854 JF - Proceedings of the Royal Society of London (1854-1905) VL - 7 SP - 203 EP - 204 PY - 1854/01/01/ UR - http://dx.doi.org/10.1098/rspl.1854.0053 M3 - doi:10.1098/rspl.1854.0053 AU - Griffith, J. ER -