Further studies of the spectral data obtained in the February 1960 rocket experiment [Ann. Geophys. <b>17</b>, 109 (1961)] have confirmed much of the preliminary analysis. New bands of the Lyman-Birge-Hopfield system in the 1700–2200 Å region have been identified. More precise wavelength determinations have been made, and previously indicated bands of N<sub>2</sub> have been more positively identified. The Lyman α line of hydrogen is just detectable. The intensity distribution among the various bands during weak auroral conditions is shown to differ markedly from more intense displays. Laboratory data obtained from a microwave discharge in very pure N<sub>2</sub> show good correlation with some features of the rocket spectra.
H. M. CROSSWHITE, E. C. ZIPF, JR., and WM. G. FASTIE, "Far-Ultraviolet Auroral Spectra," J. Opt. Soc. Am. 52, 643-645 (1962)