TY - JOUR T1 - On Irregularities Observed in the Direction of the Compass Needles of H. M. S. Isabella and Alexander, in Their Late Voyage of Discovery, and Caused by the Attraction of the Iron Contained in the Ships JF - Philosophical Transactions of the Royal Society of London (1776-1886) VL - 109 SP - 112 EP - 122 PY - 1819/01/01/ UR - http://dx.doi.org/10.1098/rstl.1819.0010 M3 - doi:10.1098/rstl.1819.0010 AU - Sabine, E. ER -