TY - JOUR T1 - Physico-Chemical Determinations at High Pressures by Optical Methods JF - Philosophical Transactions of the Royal Society of London. Series A, Containing Papers of a Math. or Phys. Character (1896-1934) VL - 212 SP - 117 EP - 148 PY - 1913/01/01/ UR - http://dx.doi.org/10.1098/rsta.1913.0004 M3 - doi:10.1098/rsta.1913.0004 AU - Wahl, W. ER -