Aneroid Barometer
date: label: date made
content: ca. 1870-1890
name: label: maker
content: Naudet & Cie.
notes: label: Description
content: 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.
label: Description
content: 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.
label: Location
content: Currently not on view
place: label: place made
content: France: Île-de-France, Paris
setName: label: See more items in
content: Medicine and Science: Physical Sciences
label: See more items in
content: Measuring & Mapping
creditLine: label: Credit Line
content: U.S. Weather Bureau
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: PH.230002
label: accession number
content: 42625
label: catalog number
content: PH*230002
label: catalog number
content: 230002
objectType: label: Object Name
content: Aneroid Barometer
physicalDescription: label: Measurements
content: overall: 4 1/4 in; 10.795 cm
label: Measurements
content: 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