TY - JOUR T1 - Several Papers concerning a New Semi-Metal, Called Platina; Communicated to the Royal Society by Mr. Wm. Watson F. R. S. JF - Philosophical Transactions (1683-1775) VL - 46 SP - 584 EP - 596 PY - 1753/01/01/ UR - http://dx.doi.org/10.1098/rstl.1749.0110 M3 - doi:10.1098/rstl.1749.0110 AU - Watson, W. AU - Brownrigg, W. ER -