Evaporimeter
notes: label: Description
content: Albert Piche, in Paris, described this simple instrument in 1872, and the Signal Service was soon using evaporimeters to determine the rate of evaporation in different parts of the United States. An account from 1888 mentions "an inverted graduated test-tube filled with water, its mouth closed by a disk of filter paper held by a spring." In this example, the evaporimeter (probably an improved version designed by Charles F. Marvin of the U.S. Weather Bureau) is enclosed in a copper box on iron legs.
label: Description
content: An evaporimeter is also known as an atmometer.
label: Description
content: Ref.: "Exhibition of the New England Meteorological Society," <i>American Meteorological Journal</i> 5 (1888): 443.
label: Description
content: "Improved Piche Evaporimeter," in H. J. Green, <i>Scientific Instruments. Catalog C</i> (Brooklyn, n.d.), p.15.
label: Location
content: Currently not on view
setName: label: See more items in
content: Medicine and Science: Physical Sciences
label: See more items in
content: Thermometers and Hygrometers
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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.316818
label: catalog number
content: 316818
label: accession number
content: 228768
objectType: label: Object Name
content: evaporimeter
physicalDescription: label: Measurements
content: overall: 16 7/8 in x 9 1/4 in x 9 1/8 in; 42.8625 cm x 23.495 cm x 23.1775 cm