TY - JOUR T1 - The Difference between the Magnetic Diurnal Variations on Ordinary and Quiet Days at Kew Observatory JF - Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character (1905-1934) VL - 91 IS - 630 SP - 370 EP - 381 PY - 1915/06/01/ UR - http://dx.doi.org/10.1098/rspa.1915.0027 M3 - doi:10.1098/rspa.1915.0027 AU - Chree, C. ER -