TY - JOUR T1 - On a Self-Recording Method of Measuring the Intensity of the Chemical Action of Total Daylight. JF - Proceedings of the Royal Society of London (1854-1905) VL - 22 SP - 158 EP - 159 PY - 1873/01/01/ UR - http://dx.doi.org/10.1098/rspl.1873.0021 M3 - doi:10.1098/rspl.1873.0021 AU - Roscoe, H. ER -