TY - JOUR T1 - Changes of Electrical Conductivity Under Geotropic Stimulation JF - Proceedings of the Royal Society of London. Series B, Containing Papers of a Biological Character (1905-1934) VL - 90 IS - 630 SP - 349 EP - 363 PY - 1918/12/20/ UR - http://dx.doi.org/10.1098/rspb.1918.0020 M3 - doi:10.1098/rspb.1918.0020 AU - Small, J. ER -