Report of the Officers Constituting the Light-house Board: Convened Under Instructions from the Secretary of the Treasury, to Inquire Into the Condition of the Light-house Establishment of the United States, Under the Act of March 3, 1851 |
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25th Congress Alan Stevenson annual annum Argand burners Argand lamps beacons brilliancy buoys burners Captain catadioptric catoptric channel collector color colza colza oil committee construction cost diameter dioptric light distance duty economical effect eight employed engineer equal erected expense feet fitted fixed lights flame flashes floating lights Flynn's knoll France Fresnel furnished gallons glass horizon illuminating apparatus important improvements inches inspection iron island keeper lamps and reflectors lantern lens apparatus lenses lenticular light-boat light-house board light-house establishment light-keepers light-room light-ship light-vessels mariner mechanical lamp miles moorings nautical miles Navesink navigation necessary night obedient servant officers painted parabolic reflectors placed port present proper rays reflector lights repairs respectfully revolving light Sandy Hook Sankaty Head Sankaty Head light sea-coast lights second order Secretary seen ship shoal Skerryvore spermaceti spherical reflectors superintendent supplies tion tower Treasury Trinity House United vessels weather wicks York