TY - JOUR T1 - On Artificial Temporary Colour-Blindness, with an Examination of the Colour Sensations of 109 Persons. JF - Proceedings of the Royal Society of London (1854-1905) VL - 63 SP - 35 EP - 38 PY - 1898/01/01/ UR - http://dx.doi.org/10.1098/rspl.1898.0006 M3 - doi:10.1098/rspl.1898.0006 AU - Burch, G. ER -