TY - JOUR T1 - Note on an Extension of the Comparison of Magnetic Disturbances with Magnetic Effects Inferred from Observed Terrestrial Galvanic Currents; And Discussion of the Magnetic Effects Inferred from Galvanic Currents on Days of Tranquil Magnetism JF - Philosophical Transactions of the Royal Society of London (1776-1886) VL - 160 SP - 215 EP - 226 PY - 1870/01/01/ UR - http://dx.doi.org/10.1098/rstl.1870.0011 M3 - doi:10.1098/rstl.1870.0011 AU - Airy, G. ER -