TY - JOUR T1 - Observations Made with the Polariscope during the 'Fox' Arctic Expedition JF - Proceedings of the Royal Society of London (1854-1905) VL - 10 SP - 558 EP - 561 PY - 1859/01/01/ UR - http://dx.doi.org/10.1098/rspl.1859.0110 M3 - doi:10.1098/rspl.1859.0110 AU - Walker, D. AU - McClintock, L. ER -