Aneroid Barometer

Aneroid Barometer

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The face of this cylindrical instrument is marked “HOLOSTERIC BAROMETER / COMPENSATED.” The additional circle with the letters “HBPN” was the logo of Naudet & Cie., and probably represents the words: Holosteric Barometer Paul Naudet. The firm was founded in Paris in 1860 by Paul Naudet, and used the term Holosteric to mean “without liquid." The scale around the edge of the silvered metallic dial extends from 28 to 31 inches of mercury and is graduated to hundredths of an inch. A blued needle indicates the present pressure; a brass needle indicates a previous observation.
The “U.S. Signal Service – 1101” inscription on the back of the case refers to the organization that became responsible for America’s national weather service in 1870. The U.S. Weather Bureau transferred this instrument to the Smithsonian in 1904.
Currently not on view
Object Name
Aneroid Barometer
date made
ca. 1870-1890
Naudet & Cie.
place made
France: Île-de-France, Paris
overall: 4 1/4 in; 10.795 cm
overall: 5 3/8 in x 2 1/2 in x 4 7/8 in; 13.6525 cm x 6.35 cm x 12.3825 cm
ID Number
accession number
catalog number
Credit Line
U.S. Weather Bureau
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Medicine and Science: Physical Sciences
Measuring & Mapping
Data Source
National Museum of American History
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