TY - JOUR T1 - On the Percentage of Argon in Atmospheric and in Respired Air JF - Proceedings of the Royal Society of London (1854-1905) VL - 59 SP - 66 EP - 68 PY - 1895/01/01/ UR - http://dx.doi.org/10.1098/rspl.1895.0056 M3 - doi:10.1098/rspl.1895.0056 AU - Kellas, A. ER -