TY - JOUR T1 - On an Expansion Apparatus for Making Visible the Tracks of Ionising Particles in Gases and Some Results Obtained by Its Use JF - Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character (1905-1934) VL - 87 IS - 595 SP - 277 EP - 292 PY - 1912/09/19/ UR - http://dx.doi.org/10.1098/rspa.1912.0081 M3 - doi:10.1098/rspa.1912.0081 AU - Wilson, C. ER -