Hydrometer
name: label: maker
content: Unico
notes: label: Description
content: Glass hydrometer/thermometer combination with mercury ballast. The paper label is marked “QUEVENNES LACTOMETER TP 60° F.” and “SKIMMED MILK” and “Unico.” In 1841, T. A. Quevenne, chief pharmacist at the Hopital de la Charité in Paris, described a hydrometric method of determining the richness (fat content) and purity of milk. Unico was the trademark of the Union Thermometer Co., a New York City firm that was in business by 1919.
label: Location
content: Currently not on view
setName: label: See more items in
content: Medicine and Science: Chemistry
creditLine: label: Credit Line
content: June W. Leonard
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1991.0691.49
label: accession number
content: 1991.0691
label: catalog number
content: 1991.0691.49
objectType: label: Object Name
content: Hydrometer
physicalDescription: label: Physical Description
content: glass (overall material)
label: Measurements
content: overall: 35.5 cm; 14 in
label: Measurements
content: overall in box: 1 5/8 in x 14 9/16 in x 1 1/2 in; 4.1275 cm x 36.98875 cm x 3.81 cm