TY - JOUR T1 - Note on the Production of Secondary Rays by $ \alpha $ Rays from Polonium JF - Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character (1905-1934) VL - 78 IS - 523 SP - 212 EP - 217 PY - 1906/09/06/ UR - http://dx.doi.org/10.1098/rspa.1906.0072 M3 - doi:10.1098/rspa.1906.0072 AU - Logeman, W. ER -