TY - JOUR T1 - Researches on the Action of Organic Substances on the Ultra-Violet Rays of the Spectrum JF - Philosophical Transactions of the Royal Society of London (1776-1886) VL - 170 SP - 257 EP - 274 PY - 1879/01/01/ UR - http://dx.doi.org/10.1098/rstl.1879.0068 M3 - doi:10.1098/rstl.1879.0068 AU - Hartley, W. AU - Huntington, A. ER -