TY - JOUR T1 - On the Effects of Simple Pressure in Producing That Species of Crystallization Which Forms Two Oppositely Polarised Images, and Exhibits the Complementary Colours by Polarised Light JF - Philosophical Transactions of the Royal Society of London (1776-1886) VL - 105 SP - 60 EP - 64 PY - 1815/01/01/ UR - http://dx.doi.org/10.1098/rstl.1815.0006 M3 - doi:10.1098/rstl.1815.0006 AU - Brewster, D. ER -