TY - JOUR T1 - The Optical Properties of Vitreous Silica JF - Proceedings of the Royal Society of London (1854-1905) VL - 73 SP - 201 EP - 208 PY - 1904/01/01/ UR - http://dx.doi.org/10.1098/rspl.1904.0031 M3 - doi:10.1098/rspl.1904.0031 AU - Gifford, J. AU - Shenstone, W. ER -