TY - JOUR T1 - A Study of the Presence or Absence of Nitrogen Bands in the Auroral Spectrum JF - Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character (1905-1934) VL - 101 IS - 711 SP - 312 EP - 315 PY - 1922/07/01/ UR - http://dx.doi.org/10.1098/rspa.1922.0046 M3 - doi:10.1098/rspa.1922.0046 AU - Rayleigh, L. ER -