TY - JOUR T1 - Further Note on the Spectrum of Silicium JF - Proceedings of the Royal Society of London (1854-1905) VL - 67 SP - 403 EP - 409 PY - 1900/01/01/ UR - http://dx.doi.org/10.1098/rspl.1900.0044 M3 - doi:10.1098/rspl.1900.0044 AU - Lockyer, N. ER -