TY - JOUR T1 - On the Wave-Length of the Principal Line in the Spectrum of the Aurora JF - Proceedings of the Royal Society of London (1854-1905) VL - 45 SP - 430 EP - 436 PY - 1888/01/01/ UR - http://dx.doi.org/10.1098/rspl.1888.0107 M3 - doi:10.1098/rspl.1888.0107 AU - Huggins, W. ER -