TY - JOUR T1 - The Variation of Electrical Potential across a Semi-Permeable Membrane JF - Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character (1905-1934) VL - 90 IS - 620 SP - 450 EP - 455 PY - 1914/07/20/ UR - http://dx.doi.org/10.1098/rspa.1914.0073 M3 - doi:10.1098/rspa.1914.0073 AU - Donnan, F. AU - Green, G. ER -