TY - JOUR T1 - On Stratified Discharges.--II. Observations with a Revolving Mirror JF - Proceedings of the Royal Society of London (1854-1905) VL - 25 SP - 73 EP - 82 PY - 1876/01/01/ UR - http://dx.doi.org/10.1098/rspl.1876.0017 M3 - doi:10.1098/rspl.1876.0017 AU - Spottiswoode, W. ER -