TY - JOUR T1 - On the Mechanical Relations of the Energy of Magnetisation JF - Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character (1905-1934) VL - 93 IS - 646 SP - 20 EP - 27 PY - 1916/12/01/ UR - http://dx.doi.org/10.1098/rspa.1916.0047 M3 - doi:10.1098/rspa.1916.0047 AU - Livens, G. ER -