Stalagmometer
name: label: maker
content: Gerhardt
notes: label: Description
content: A stalagmometer is a glass instrument that measures the surface tension of a liquid, and that was often used to determine alcoholic concentration. Isidor Traube (1860-1943), a teacher of chemistry at the Technische-Hochschule in Berlin, devised the form in the 1880s. The “Vf. V. C. Gerhardt” inscription on the stem of this example refers to Carl Heinrich Gerhardt (1846-1907), proprietor of a chemical supply house in Bonn. The inscription on the bulb reads “D.R.P. 39442 / F. Traube’s Stalagometer / zur Fuselbestimmung / Prpsr Wung 20 Vol %=72,2 / Temp=20° Cls.” The inscription on the case reads “C. Gerhardt, / Marquarts Lager Chemischen Utensilien / Bonn.”
label: Description
content: Ref: G. F. B., “On the Stalagmometer and Its Use in Quantitative Analysis,” <i>American Journal of Science</i> (March 1888): 248-249.
label: Location
content: Currently not on view
place: label: place made
content: Germany: North Rhine-Westphalia, Bonn
setName: label: See more items in
content: Medicine and Science: Chemistry
creditLine: label: Credit Line
content: Gift of Cornell University
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: CH.318268.11
label: catalog number
content: 318268.11
label: accession number
content: 231262
objectType: label: Object Name
content: Instrument for Alcohol Determination (Stalagonometer)
physicalDescription: label: Measurements
content: case 2: 14 in x 5 1/4 in; 35.56 cm x 13.335 cm
label: Measurements
content: tube: 13 in; 33.02 cm
label: Measurements
content: overall: 13 1/2 in; 34.29 cm
label: Measurements
content: overall in case: 1 in x 14 1/2 in x 13 1/4 in; 2.54 cm x 36.83 cm x 33.655 cm