TY - JOUR T1 - On the Electro-Magnetic Properties of Metalliferous Veins in the Mines of Cornwall JF - Philosophical Transactions of the Royal Society of London (1776-1886) VL - 120 SP - 399 EP - 414 PY - 1830/01/01/ UR - http://dx.doi.org/10.1098/rstl.1830.0027 M3 - doi:10.1098/rstl.1830.0027 AU - Fox, R. ER -