TY - JOUR T1 - Observations on the Fluorescence and Resonance Radiation of Sodium Vapour. I JF - Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character (1905-1934) VL - 91 IS - 630 SP - 388 EP - 395 PY - 1915/06/01/ UR - http://dx.doi.org/10.1098/rspa.1915.0029 M3 - doi:10.1098/rspa.1915.0029 AU - Strutt, R. ER -