TY - JOUR T1 - Comparison of Magnetic Disturbances Recorded by the Self-Registering Magnetometers at the Royal Observatory, Greenwich, with Magnetic Disturbances Deduced from the Corresponding Terrestrial Galvanic Currents Recorded by the Self-Registering Galvanometers of the Royal Observatory JF - Philosophical Transactions of the Royal Society of London (1776-1886) VL - 158 SP - 465 EP - 472 PY - 1868/01/01/ UR - http://dx.doi.org/10.1098/rstl.1868.0018 M3 - doi:10.1098/rstl.1868.0018 AU - Airy, G. ER -