TY - JOUR T1 - Discussion of the Observed Deviations of the Compass in Several Ships, Wood-Built and Iron-Built; with General Tables for Facilitating the Examination of Compass-Deviations JF - Proceedings of the Royal Society of London (1854-1905) VL - 7 SP - 491 EP - 495 PY - 1854/01/01/ UR - http://dx.doi.org/10.1098/rspl.1854.0113 M3 - doi:10.1098/rspl.1854.0113 AU - Airy, G. ER -