TY - JOUR T1 - On the Amount of Argon and Helium Contained in the Gas from the Bath Springs JF - Proceedings of the Royal Society of London (1854-1905) VL - 60 SP - 56 EP - 57 PY - 1896/01/01/ UR - http://dx.doi.org/10.1098/rspl.1896.0016 M3 - doi:10.1098/rspl.1896.0016 AU - Rayleigh, L. ER -