TY - JOUR T1 - A New Method of Assaying Copper Ores. By George Fordyce, M. D. F. R. S. JF - Philosophical Transactions of the Royal Society of London (1776-1886) VL - 70 SP - 30 EP - 41 PY - 1780/01/01/ UR - http://dx.doi.org/10.1098/rstl.1780.0003 M3 - doi:10.1098/rstl.1780.0003 AU - Fordyce, G. ER -