Fortin et Hermann Hair Hygrometer

Description
This is a brass instrument with a silvered scale marked "Fortin et Hermann, Genve. [?] à Paris" and "Humidité" (humidity) and "Secheresse" (dryness). The senior member of this instrument firm was Nicholas Fortin, an instrument maker well known for his improved mercury barometer. The U.S. Military Academy bought this example in 1829.
Object Name
hygrometer
hair hygrometer
date made
ca 1829
maker
Fortin et Hermann
place made
France: Île-de-France, Paris
ID Number
PH*315744
catalog number
315744
accession number
217544
subject
Science & Scientific Instruments
See more items in
Medicine and Science: Physical Sciences
Military
Thermometers and Hygrometers
Data Source
National Museum of American History, Kenneth E. Behring Center

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