TY - JOUR T1 - Remarks upon the Magnetic Observations Transmitted from York Fort in Hudson's Bay, in August 1857, by Lieut. Blakiston, of the Royal Artillery JF - Proceedings of the Royal Society of London (1854-1905) VL - 9 SP - 81 EP - 91 PY - 1857/01/01/ UR - http://dx.doi.org/10.1098/rspl.1857.0012 M3 - doi:10.1098/rspl.1857.0012 AU - Sabine, M. ER -