Naudet Aneroid Barometer

Description
The face of this cylindrical instrument is marked “BAROMETRE HOLOSTERIQUE / COMPENSÉ / NAUDET & CIE. / PARIS / SERVICE MÉTÉOROLOGIQUE.” 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 65 to 80 millimeters of mercury and is graduated to tenths. A blued needle indicates the present pressure; a brass needle indicates a previous observation. The U.S. Signal Corps transferred this instrument to the Smithsonian in 1923.
Location
Currently not on view
Object Name
barometer, aneroid
date made
1860-1923
maker
Naudet & Cie.
Measurements
overall: 4 3/4 in; 12.065 cm
place made
France: Île-de-France, Paris
ID Number
PH*308186
accession number
70852
catalog number
308186
See more items in
Medicine and Science: Physical Sciences
Measuring & Mapping
Barometers
Data Source
National Museum of American History, Kenneth E. Behring Center

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