TY - JOUR T1 - Some Observations, Made during the Last Three Years, of the Quantity of the Variation of the Magnetic Horizontal Needle to the Westward; By Mr. Geo. Graham, F. R. S. at His House in Fleetstreet, London JF - Philosophical Transactions (1683-1775) VL - 45 SP - 279 EP - 280 PY - 1753/01/01/ UR - http://dx.doi.org/10.1098/rstl.1748.0030 M3 - doi:10.1098/rstl.1748.0030 AU - Graham, G. ER -