TY - JOUR T1 - On the Spontaneous Electrical Currents Observed in the Wires of the Electric Telegraph JF - Philosophical Transactions of the Royal Society of London (1776-1886) VL - 139 SP - 61 EP - 72 PY - 1849/01/01/ UR - http://dx.doi.org/10.1098/rstl.1849.0006 M3 - doi:10.1098/rstl.1849.0006 AU - Barlow, W. ER -