Tonnelot Mercury Barometer

Description
Over the years, enormous ingenuity has been directed to the problem of designing a barometer that could be safely moved from one place to another. One solution was to have the cistern full during transport, and mechanically expanded to a proper size for actual use. This example, which is of that sort, is marked “Tonnelot à Paris.” The signature refers to Jules Tonnelot, a Parisian who showed his meteorological instruments at the international exhibitions held in 1878, 1889 and 1900.
Location
Currently not on view
Object Name
barometer, mercury
maker
Tonnelot, Jules
Measurements
overall: 35 in; 88.9 cm
place made
France: Île-de-France, Paris
ID Number
PH*308187
accession number
70852
catalog number
308187
See more items in
Medicine and Science: Physical Sciences
Measuring & Mapping
Barometers
Data Source
National Museum of American History, Kenneth E. Behring Center
Credit Line
U.S. Signal Corps

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