TY - JOUR T1 - On the Chemical Intensity of Total Daylight at Kew and Para in 1865-67. JF - Proceedings of the Royal Society of London (1854-1905) VL - 16 SP - 41 EP - 44 PY - 1867/01/01/ UR - http://dx.doi.org/10.1098/rspl.1867.0011 M3 - doi:10.1098/rspl.1867.0011 AU - Roscoe, H. ER -