TY - JOUR T1 - On the Effect of Polish on the Reflexion of Light from the Surface of Iceland Spar JF - Proceedings of the Royal Society of London (1854-1905) VL - 42 SP - 242 EP - 267 PY - 1887/01/01/ UR - http://dx.doi.org/10.1098/rspl.1887.0050 M3 - doi:10.1098/rspl.1887.0050 AU - Spurge, C. ER -