TY - JOUR T1 - Further Experiments on the Production of Helium from Radium JF - Proceedings of the Royal Society of London (1854-1905) VL - 73 SP - 346 EP - 358 PY - 1904/01/01/ UR - http://dx.doi.org/10.1098/rspl.1904.0050 M3 - doi:10.1098/rspl.1904.0050 AU - Ramsay, W. AU - Soddy, F. ER -