TY - JOUR T1 - Researches on Spectrum Photography in Relation to New Methods of Quantitative Chemical Analysis JF - Proceedings of the Royal Society of London (1854-1905) VL - 34 SP - 81 EP - 84 PY - 1882/01/01/ UR - http://dx.doi.org/10.1098/rspl.1882.0014 M3 - doi:10.1098/rspl.1882.0014 AU - Hartley, W. ER -