Aneroid Barometer
date: label: date made
content: ca 1890
notes: label: Description
content: This is a small brass instrument with two scales around the circumference of its silvered dial. One extends from 18 to 31 inches of mercury, with subdivisions to 20th of an inch; the other extends from zero to 15,000 feet elevation. The back is engraved “No 24 U.S.G.S.”
label: Description
content: The mahogany box holding the barometer has two labels. One reads “H.W. Turner, U.S. Geol. Survey, San Francisco” and the other reads “A. LIETZ & CO. OPTICIANS, SAN FRANCISCO.” The former refers to Henry Ward Turner, a mining engineer and geologist who worked for the U.S. Geological Survey from 1882-1901. The latter refers to the California firm that sold a wide range of mathematical and optical instruments. The barometer was probably made in England. The Geological Survey transferred it to the Smithsonian in 1907.
label: Location
content: Currently not on view
setName: label: See more items in
content: Medicine and Science: Physical Sciences
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content: Barometers
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content: Measuring & Mapping
creditLine: label: Credit Line
content: U.S. Geological Survey
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: PH.247928
label: catalog number
content: 247928
label: accession number
content: 47736
objectType: label: Object Name
content: Aneroid Barometer
physicalDescription: label: Measurements
content: overall: 1 13/16 in; 4.572 cm
label: Measurements
content: overall in case: 1 1/2 in x 3 1/2 in x 3 in; 3.81 cm x 8.89 cm x 7.62 cm