TY - JOUR T1 - On the Effects of Iron Masts on Compasses Placed near Them JF - Proceedings of the Royal Society of London (1854-1905) VL - 23 SP - 582 EP - 588 PY - 1874/01/01/ UR - http://dx.doi.org/10.1098/rspl.1874.0095 M3 - doi:10.1098/rspl.1874.0095 AU - Creak, E. ER -