H. J. Green Sling Psychrometer

This instrument is said to have been used by Richard E. Byrd, USN, during his flight to the North Pole on May 9, 1926. It consists of two mercury-in-glass thermometers mounted on an aluminum frame. This frame is marked "H. J. GREEN B'KLYN N.Y." and "No. 648 U.S. WEATHER BUREAU" and "8078" and "8079" and equipped with a wooden handle. The wet bulb thermometer has a milk white back; its clear front is marked "U.S. 8078" and graduated every degree Fahrenheit from -40 to +129. The dry bulb thermometer has a milk-white back; its clear front is marked "U.S. 8079" and graduated every degree F from -40 to +129.
Currently not on view
Object Name
sling psychrometer
Byrd, Sr., Richard E.
H. J. Green
place made
United States: New York, Brooklyn
ID Number
accession number
catalog number
Measuring & Mapping
U.S. Weather Bureau
Thermometers and Hygrometers
See more items in
Medicine and Science: Physical Sciences
Thermometers and Hygrometers
Data Source
National Museum of American History, Kenneth E. Behring Center
Credit Line
U.S. Weather Bureau

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