TY - JOUR T1 - Results of Magnetical Observations Made at Ascension Island, Latitude 7 $^{\circ}$$55^{\prime}$ $20^{\prime \prime}$ South, Longitude 14$^{\circ}$ $25^{\prime}$ $30^{\prime \prime}$ West, from July 1863 to March 1866 JF - Proceedings of the Royal Society of London (1854-1905) VL - 17 SP - 397 EP - 400 PY - 1868/01/01/ UR - http://dx.doi.org/10.1098/rspl.1868.0076 M3 - doi:10.1098/rspl.1868.0076 AU - Rokeby, L. ER -