TY - JOUR T1 - Additional Observations on the Optical Properties and Structure of Heated Glass and Unannealed Glass Drops JF - Philosophical Transactions of the Royal Society of London (1776-1886) VL - 105 SP - 1 EP - 8 PY - 1815/01/01/ UR - http://dx.doi.org/10.1098/rstl.1815.0002 M3 - doi:10.1098/rstl.1815.0002 AU - Brewster, D. ER -