TY - JOUR T1 - On Spectrophotometry in the Visible and Ultra-Violet Spectrum JF - Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character (1905-1934) VL - 99 IS - 696 SP - 78 EP - 84 PY - 1921/04/06/ UR - http://dx.doi.org/10.1098/rspa.1921.0024 M3 - doi:10.1098/rspa.1921.0024 AU - Merton, T. ER -