TY - JOUR T1 - Spectroscopic Observations on the Active Modification of Nitrogen. V JF - Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character (1905-1934) VL - 93 IS - 650 SP - 254 EP - 267 PY - 1917/05/03/ UR - http://dx.doi.org/10.1098/rspa.1917.0017 M3 - doi:10.1098/rspa.1917.0017 AU - Strutt, R. ER -