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Hair Hygrometer

Hair Hygrometer

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Description
The inscriptions on this hair hygrometer read "U.S. WEATHER / BUREAU / No. 22" and 'H.J. GREEN B'KLYN, N.Y." This instrument was probably designed by Charles F. Marvin, a meteorologist who became Chief of the Weather Bureau in 1913.
Location
Currently not on view
Object Name
Hair Hygrometer
date made
early 20th century
maker
Green, Henry J.
place made
United States: New York, Brooklyn
Measurements
overall: 12 in x 4 in x 3 in; 30.48 cm x 10.16 cm x 7.62 cm
overall: 12 1/4 in x 5 1/2 in x 3 in; 31.115 cm x 13.97 cm x 7.62 cm
ID Number
PH.314536
catalog number
314536
accession number
204612
Credit Line
U.S. Weather Bureau
subject
Science & Scientific Instruments
See more items in
Medicine and Science: Physical Sciences
Data Source
National Museum of American History
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