- This mercury-in-glass thermometer has a cylindrical bulb. The inscription on the milk-white back reads “Centigrade C. Gerhardt, Bonn No. 1940.” The scale extends from -38 to +20 degrees Centigrade. The thermometer is held in a hinged, black paper case.
- Carl Gerhardt began making laboratory apparatus in 1872. This thermometer may date from soon after the establishment of the Johns Hopkins University in 1876.
- Currently not on view
- Object Name
- date made
- ca 1876
- C. Gerhardt
- place made
- Germany: North Rhine-Westphalia, Bonn
- overall: 6 3/4 in; 17.145 cm
- overall in case: 5/8 in x 7 3/4 in x 7/8 in; 1.5875 cm x 19.685 cm x 2.2225 cm
- ID Number
- catalog number
- accession number
- Credit Line
- Johns Hopkins University
- See more items in
- Medicine and Science: Chemistry
- Thermometers and Hygrometers
- Measuring & Mapping
- Data Source
- National Museum of American History
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