TY - JOUR T1 - Chemical Experiments and Observations on Lead Ore. By Richard Watson, D. D. F. R. S. in a Letter to Sir John Pringle, Bart. P. R. S. JF - Philosophical Transactions of the Royal Society of London (1776-1886) VL - 68 SP - 863 EP - 883 PY - 1778/01/01/ UR - http://dx.doi.org/10.1098/rstl.1778.0040 M3 - doi:10.1098/rstl.1778.0040 AU - Watson, R. ER -