TY - JOUR T1 - On Certain Properties of Metals considered in Relation to the Periodic Law JF - Proceedings of the Royal Society of London (1854-1905) VL - 49 SP - 347 EP - 356 PY - 1890/01/01/ UR - http://dx.doi.org/10.1098/rspl.1890.0102 M3 - doi:10.1098/rspl.1890.0102 AU - Roberts-Austen, W. ER -