TY - JOUR T1 - On the Laws of the Deviation of Magnetized Needles towards Iron JF - Philosophical Transactions of the Royal Society of London (1776-1886) VL - 118 SP - 325 EP - 360 PY - 1828/01/01/ UR - http://dx.doi.org/10.1098/rstl.1828.0019 M3 - doi:10.1098/rstl.1828.0019 AU - Christie, S. ER -