TY - JOUR T1 - On the Separation of the Least Volatile Gases of Atmospheric Air, and Their Spectra JF - Proceedings of the Royal Society of London (1854-1905) VL - 68 SP - 389 EP - 398 PY - 1901/01/01/ UR - http://dx.doi.org/10.1098/rspl.1901.0065 M3 - doi:10.1098/rspl.1901.0065 AU - Liveing, G. AU - Dewar, J. ER -