Stalagmometer

Stalagmometer

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Description
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 chemistry teacher at the Technische-Hochschule in Berlin, devised the form in the 1880s. The “Verf. V. C. Gerhart” inscription on this example refers to Carl Heinrich Gerhardt (1846-1907), proprietor of a chemical supply house in Bonn. The inscription on the case reads “C. Gerhardt / Marquarts Lager Chemischen Utensilien... / Bonn.”
Ref: G. F. B., “On the Stalagmometer and Its Use in Quantitative Analysis,” American Journal of Science (March 1888): 248-249.
J. Traube, Physico-Chemical Methods (Philadelphia, 1898), pp. 49-53.
Location
Currently not on view
Object Name
Instrument for Alcohol Determination (Stalagonometer)
Stalagmometer
maker
Gerhardt
place made
Germany: North Rhine-Westphalia, Bonn
Associated Place
United States: New Jersey
Measurements
case 1: 14 1/2 in x 3 3/4 in; 36.83 cm x 9.525 cm
tube: 13 in; 33.02 cm
overall: 13 1/2 in; 34.29 cm
overall in case: 1 1/8 in x 14 1/4 in x 5 3/8 in; 2.8575 cm x 36.195 cm x 13.6525 cm
ID Number
CH.318268.10
accession number
231262
catalog number
318268.10
Credit Line
Gift of Cornell University
See more items in
Medicine and Science: Chemistry
Data Source
National Museum of American History
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