TY - JOUR T1 - On a New Reflecting Galvanometer of Great Sensibility, and on New Forms of Astatic Galvanometers JF - Proceedings of the Royal Society of London (1854-1905) VL - 36 SP - 287 EP - 296 PY - 1883/01/01/ UR - http://dx.doi.org/10.1098/rspl.1883.0112 M3 - doi:10.1098/rspl.1883.0112 AU - Gray, T. AU - Gray, A. ER -