TY - JOUR T1 - On the Spectra of Lead Isotopes JF - Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character (1905-1934) VL - 100 IS - 702 SP - 84 EP - 88 PY - 1921/10/04/ UR - http://dx.doi.org/10.1098/rspa.1921.0072 M3 - doi:10.1098/rspa.1921.0072 AU - Merton, T. ER -