TY - JOUR T1 - Observations on the Dip and Variation of the Magnetic Needle, and on the Intensity of the Magnetic Force; Made during the Late Voyage in Search of a North West Passage JF - Philosophical Transactions of the Royal Society of London (1776-1886) VL - 109 SP - 132 EP - 144 PY - 1819/01/01/ UR - http://dx.doi.org/10.1098/rstl.1819.0012 M3 - doi:10.1098/rstl.1819.0012 AU - Sabine, E. ER -