TY - JOUR T1 - [Letter Addressed to Michael Farraday] JF - Abstracts of the Papers Communicated to the Royal Society of London (1843-1854) VL - 6 SP - 291 EP - 291 PY - 1850/01/01/ UR - http://dx.doi.org/10.1098/rspl.1850.0102 M3 - doi:10.1098/rspl.1850.0102 AU - Stevenson, W. ER -