TY - JOUR T1 - On the Action of Compasses in Iron Ships JF - Proceedings of the Royal Society of London (1854-1905) VL - 15 SP - 38 EP - 42 PY - 1866/01/01/ UR - http://dx.doi.org/10.1098/rspl.1866.0015 M3 - doi:10.1098/rspl.1866.0015 AU - Lilley, J. ER -