TY - JOUR T1 - Note on the Spectrum of Silicium JF - Proceedings of the Royal Society of London (1854-1905) VL - 65 SP - 449 EP - 452 PY - 1899/01/01/ UR - http://dx.doi.org/10.1098/rspl.1899.0057 M3 - doi:10.1098/rspl.1899.0057 AU - Lockyer, N. ER -