Differential Hygrometer
name: label: maker
content: Watkins & Hill
notes: label: Description
content: Mercury-in-glass thermometer on an ivory (?) plate with Fahrenheit and Centigrade scales. An inscription on the back of the plate reads “WATKINS & HILL / CHARING CROSS.”
label: Description
content: Ref: Watkins and Hill, A Descriptive Catalogue of OPTICAL, MATHEMATICAL, PHILOSOPHICAL, AND CHEMICAL Instruments and Apparatus (London, 1832).
label: Location
content: Currently not on view
setName: label: See more items in
content: Medicine and Science: Physical Sciences
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: PH.315129
label: catalog number
content: 315129
label: accession number
content: 215563
objectType: label: Object Name
content: thermometer
physicalDescription: label: Measurements
content: overall: 10 1/2 in x 4 1/2 in x 4 in; 26.67 cm x 11.43 cm x 10.16 cm