Zeiss Crystal Refractometer

Description
A crystal refractometer measures the refractive index of solid bodies. The Carl Zeiss Optical Works showed two of these instruments, one large and one small, at the Columbian Exposition held in Chicago in 1893. This example is marked "Carl Zeiss Jena Germany Nr. 6880 Abb." It came to the Smithsonian from Columbia University.
Location
Currently not on view
maker
Zeiss
place made
Deutschland: Thüringen, Jena
Measurements
overall: 43 cm x 27 cm x 26.5 cm; 16 15/16 in x 10 5/8 in x 10 7/16 in
overall in case: 16 3/16 in x 10 1/2 in x 10 5/8 in; 41.11625 cm x 26.67 cm x 26.9875 cm
ID Number
2001.0162.03.01
accession number
2001.0162
catalog number
2001.0162.03.01
Credit Line
Columbia University
subject
Optics
Chemistry
Worlds Fair
See more items in
Medicine and Science: Physical Sciences
Measuring & Mapping
Saccharimeters
Data Source
National Museum of American History, Kenneth E. Behring Center

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