TY - JOUR T1 - Experimental Examination of Platina. By William Lewis, M.B. F.R.S. JF - Philosophical Transactions (1683-1775) VL - 50 SP - 148 EP - 155 PY - 1757/01/01/ UR - http://dx.doi.org/10.1098/rstl.1757.0020 M3 - doi:10.1098/rstl.1757.0020 AU - Lewis, W. ER -