TY  - JOUR
T1  - On the Relation between the Sun's Altitude and the Chemical Intensity of Total Daylight in a Cloudless Sky
JF  - Philosophical Transactions of the Royal Society of London (1776-1886)
VL  - 160
SP  - 309
EP  - 316
PY  - 1870/01/01/
UR  - http://dx.doi.org/10.1098/rstl.1870.0017
M3  - doi:10.1098/rstl.1870.0017
AU  - Roscoe, H.
AU  - Thorpe, T.
ER  -