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Beacons of the Sea: Lighting the Coasts of the United States
George R. Putnam
No preview available - 2017
aids to navigation approach beacons Boston light build built buoys caisson candle power Cape carried channel close coast completed constructed danger difficult distance driven electric engineering England entire entrance erected established expensive exposed feet fire fitted five fixed flash float fog signal foundation four give glass harbor height Henry hour important increase iron Island Johns River keepers Lake lamps land lantern lens lenses LIGHT STATION light vessel lighthouse live maintained mariners mark MICHIGAN miles months moored nearly necessary night occulting operated person placed Point position present President recently reef requires revolving River rock salary sand seconds seen ship Shoal shore shows siren sometimes sound standing stone storm structure submarine bells sufficient sunk supplies supported taking tion tower United whistles wood York