Aberrations of Audibility of Fog Signals: A Paper Read Before the Philosophical Society of Washington, October 22, 1881
Judd & Detweiler, 1882 - Fog-signals - 15 pages
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12 mile aberrations Adams appears ascertain assume atmosphere audibility audition August Barometer Beaver Tail Board Bulb cause Changed course clear close condition continuously difference direction Distance from Lit distinctly ears Establishment expect to hear experiments fact fails to hear five Fog Signal fog-signal force full operation further Galatea given half hear a fog-signal heard heavy Henry House inaudibility increasing Intensity of sound July 11 known land last station Light Light-House Light-House Board Little Gull Island Long Island Sound lost lower mariner MICHIGAN mile from last minute moderate morning nearer nearly Newport normal North noted November Number of Observation occur officer phenomena Prof pulling reached REMARKS Rock running sails scale of ten seems showed siren sound in scale statute miles steam steamer stopped TABLE temperature Thermometer tion tle Gull Island trumpet Tyndall Weather whistle wind windward yards