Green Psychrometer

Green Psychrometer

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Here, a wooden box with a split lid opens to reveal two mercury-in-glass thermometers, each on its own metal plate. The plate holding the wet bulb thermometer is marked "H.J. GREEN B'KLYN, N.Y." and "No. 4137 U.S. WEATHER BUREAU." The plate holding the dry bulb thermometer (the bulb is broken) is marked " H.J. GREEN B'KLYN, N.Y." and "No. 4135 U.S. WEATHER BUREAU." On the base of the box is a paper card that reads "DEPARTMENT OF AGRICULTURE WEATHER BUREAU Correction Ca...ercurial Thermometer."
Currently not on view
Object Name
H. J. Green
place made
United States: New York, Brooklyn
overall: 9 in; 22.86 cm
overall in box: 1 1/16 in x 2 5/16 in x 10 3/4 in; 2.69875 cm x 5.87375 cm x 27.305 cm
ID Number
accession number
catalog number
Credit Line
U.S. Weather Bureau
See more items in
Medicine and Science: Physical Sciences
Measuring & Mapping
Data Source
National Museum of American History
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