TY - JOUR T1 - Fog Signals. Areas of Silence and Greatest Range of Sound JF - Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character (1905-1934) VL - 91 IS - 623 SP - 71 EP - 75 PY - 1914/11/02/ UR - http://dx.doi.org/10.1098/rspa.1914.0103 M3 - doi:10.1098/rspa.1914.0103 AU - Mallock, A. ER -