TY  - JOUR
T1  - Photo-Chemical Researches.--Part I. On the Measurement of the Chemical Action of Light. 
JF  - Proceedings of the Royal Society of London (1854-1905)
VL  - 8
SP  - 234
EP  - 238
PY  - 1856/01/01/
UR  - http://dx.doi.org/10.1098/rspl.1856.0066
M3  - doi:10.1098/rspl.1856.0066
AU  - Bunsen, P.
AU  - Roscoe, H.
ER  -