TY - JOUR T1 - A Short Account of Some Specimens of Native Lead Found in a Mine of Monmouthshire: In a Letter from Michael Morris, M. D. F. R. S. to M. Maty, M. D. Sec. R. S. JF - Philosophical Transactions (1683-1775) VL - 63 SP - 20 EP - 21 PY - 1773/01/01/ UR - http://dx.doi.org/10.1098/rstl.1773.0003 M3 - doi:10.1098/rstl.1773.0003 AU - Morris, M. ER -