TY - JOUR T1 - On Reversed Photographs of the Solar Spectrum beyond the Red, obtained on a Collodion Plate JF - Proceedings of the Royal Society of London (1854-1905) VL - 24 SP - 186 EP - 189 PY - 1875/01/01/ UR - http://dx.doi.org/10.1098/rspl.1875.0024 M3 - doi:10.1098/rspl.1875.0024 AU - Waterhouse, J. ER -