TY - JOUR T1 - On the Dip of the Magnetic Needle in London, in August 1828 JF - Philosophical Transactions of the Royal Society of London (1776-1886) VL - 119 SP - 47 EP - 53 PY - 1829/01/01/ UR - http://dx.doi.org/10.1098/rstl.1829.0010 M3 - doi:10.1098/rstl.1829.0010 AU - Sabine, E. ER -