TY - JOUR T1 - On the Influence of Screens in Arresting the Progress of Magnetic Action JF - Philosophical Transactions of the Royal Society of London (1776-1886) VL - 121 SP - 497 EP - 500 PY - 1831/01/01/ UR - http://dx.doi.org/10.1098/rstl.1831.0029 M3 - doi:10.1098/rstl.1831.0029 AU - Harris, W. ER -