TY - JOUR T1 - On the Propagation of Sound in the Free Atmosphere and the Acoustic Efficiency of Fog-Signal Machinery: An Account of Experiments Carried out at Father Point, Quebec, September, 1913 JF - Philosophical Transactions of the Royal Society of London. Series A, Containing Papers of a Math. or Phys. Character (1896-1934) VL - 218 SP - 211 EP - 293 PY - 1919/01/01/ UR - http://dx.doi.org/10.1098/rsta.1919.0004 M3 - doi:10.1098/rsta.1919.0004 AU - King, L. ER -