TY - JOUR T1 - Correction to Paper 'On the Spectrum of Radium' JF - Proceedings of the Royal Society of London (1854-1905) VL - 72 SP - 413 EP - 413 PY - 1903/01/01/ UR - http://dx.doi.org/10.1098/rspl.1903.0071 M3 - doi:10.1098/rspl.1903.0071 AU - Crookes, W. ER -