TY - JOUR T1 - Discussion on Isotopes JF - Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character (1905-1934) VL - 99 IS - 697 SP - 87 EP - 104 PY - 1921/05/02/ UR - http://dx.doi.org/10.1098/rspa.1921.0026 M3 - doi:10.1098/rspa.1921.0026 AU - Thomson, J. AU - Aston, F. AU - Soddy, F. AU - Merton, T. AU - Lindemann, F. ER -