TY - JOUR T1 - Experiments of the Luminous Qualities of Amber, Diamonds, and Gum Lac, by Dr. Wall, in a Letter to Dr. Sloane, R. S. Secr. JF - Philosophical Transactions (1683-1775) VL - 26 SP - 69 EP - 76 PY - 1753/01/01/ UR - http://dx.doi.org/10.1098/rstl.1708.0011 M3 - doi:10.1098/rstl.1708.0011 AU - Wall, D. ER -