TY - JOUR T1 - Experimental Work on a New Standard of Light JF - Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character (1905-1934) VL - 86 IS - 588 SP - 409 EP - 410 PY - 1912/04/25/ UR - http://dx.doi.org/10.1098/rspa.1912.0033 M3 - doi:10.1098/rspa.1912.0033 AU - Harwood, W. AU - Petavel, J. ER -