TY - JOUR T1 - Second Letter on the Electrolysis of Secondary Compounds JF - Philosophical Transactions of the Royal Society of London (1776-1886) VL - 130 SP - 209 EP - 224 PY - 1840/01/01/ UR - http://dx.doi.org/10.1098/rstl.1840.0012 M3 - doi:10.1098/rstl.1840.0012 AU - Daniell, J. ER -