TY  - JOUR
T1  - Negative After-Images and Successive Contrast with Pure Spectral Colours
JF  - Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character (1905-1934)
VL  - 87
IS  - 594
SP  - 229
EP  - 229
PY  - 1912/08/21/
UR  - http://dx.doi.org/10.1098/rspa.1912.0077
M3  - doi:10.1098/rspa.1912.0077
AU  - Porter, A.
AU  - Edridge-Green, F.
ER  -