TY - JOUR T1 - On the Laws of Polarisation and Double Refraction in Regularly Crystallized Bodies JF - Philosophical Transactions of the Royal Society of London (1776-1886) VL - 108 SP - 199 EP - 273 PY - 1818/01/01/ UR - http://dx.doi.org/10.1098/rstl.1818.0015 M3 - doi:10.1098/rstl.1818.0015 AU - Brewster, D. ER -