TY - JOUR T1 - The Diurnal Variation of Terrestrial Magnetism JF - Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character (1905-1934) VL - 80 IS - 535 SP - 80 EP - 82 PY - 1907/12/09/ UR - http://dx.doi.org/10.1098/rspa.1907.0078 M3 - doi:10.1098/rspa.1907.0078 AU - Schuster, A. ER -