TY - JOUR T1 - An Investigation of the Colour Vision of 527 Students by the Rayleigh Test JF - Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character (1905-1934) VL - 102 IS - 716 SP - 353 EP - 360 PY - 1922/12/01/ UR - http://dx.doi.org/10.1098/rspa.1922.0091 M3 - doi:10.1098/rspa.1922.0091 AU - Houstoun, R. ER -