TY - JOUR T1 - Calculation of a Primary Standard of Mutual Inductance of the Campbell Type and Comparison of it with the Similar N.P.L. Standard JF - Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character (1905-1934) VL - 101 IS - 711 SP - 315 EP - 332 PY - 1922/07/01/ UR - http://dx.doi.org/10.1098/rspa.1922.0047 M3 - doi:10.1098/rspa.1922.0047 AU - Dye, D. ER -