Psychrometer
name: label: maker
content: H. J. Green
notes: label: Description
content: This instrument consists of two mercury-in-glass thermometers mounted on a wooden board. Each thermometer is on a molded aluminum plate marked H. J. GREEN B’KLYN. N.Y.” and “U.S. WEATHER BUREAU.” One is also marked “No. 4860” and the other is marked “No. 5097.” The brass support for the latter is marked “J. P. FRIEZ BALT. MD.”
label: Description
content: The dry bulb thermometer has a milk-white back marked “No. 4860 U.S. WEATHER BUREAU.” Its front is clear and graduated every degree Fahrenheit from -38 to +134. The wet bulb thermometer has a milk-white back marked “No. 5097 U.S. WEATHER BUREAU.” Its front is clear and graduated every degree F from -30 to +112. The water cistern is missing. This instrument was made between 1890, when Green moved his business to Brooklyn, and 1954, when it came to the Smithsonian.
label: Description
content: Ref.: Henry J. Green, <Meteorological and Scientific Instruments</i> (Brooklyn, 1900), p. 26.
label: Location
content: Currently not on view
place: label: place made
content: United States: New York, Brooklyn
setName: label: See more items in
content: Medicine and Science: Physical Sciences
label: See more items in
content: Thermometers and Hygrometers
label: See more items in
content: Measuring & Mapping
creditLine: label: Credit Line
content: U.S. Weather Bureau
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: PH.314561
label: accession number
content: 204612
label: catalog number
content: 314561
objectType: label: Object Name
content: psychrometer
physicalDescription: label: Measurements
content: overall: 2 3/8 in x 6 1/2 in x 13 in; 6.0325 cm x 16.51 cm x 33.02 cm