TY - JOUR T1 - Helium, a Gaseous Constituent of Certain Minerals. Part I JF - Proceedings of the Royal Society of London (1854-1905) VL - 58 SP - 80 EP - 89 PY - 1895/01/01/ UR - http://dx.doi.org/10.1098/rspl.1895.0010 M3 - doi:10.1098/rspl.1895.0010 AU - Ramsay, W. ER -