TY - JOUR T1 - On the Question of Fractional Activity: ("All or None" Phenomenon) in Mammalian Reflex Phenomena JF - Proceedings of the Royal Society of London. Series B, Containing Papers of a Biological Character (1905-1934) VL - 87 IS - 593 SP - 132 EP - 144 PY - 1913/10/16/ UR - http://dx.doi.org/10.1098/rspb.1913.0066 M3 - doi:10.1098/rspb.1913.0066 AU - Brown, T. ER -