TY - JOUR T1 - The Relationship between Pressure and Temperature at the Same Level in the Free Atmosphere JF - Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character (1905-1934) VL - 98 IS - 691 SP - 235 EP - 248 PY - 1920/12/03/ UR - http://dx.doi.org/10.1098/rspa.1920.0067 M3 - doi:10.1098/rspa.1920.0067 AU - Chapman, E. ER -