Humboldt State University ® Department of Chemistry

Robert A. Paselk Scientific Instrument Museum

The Chemical Refractometer

An Exhibit in the Curator's Office (SA 560b)

2003-5 AY's

Exhibit Catalog

Introductory Essay: The Chemical Refractometer, 1874-1980 by Richard A. Paselk


Abbe-type General Laboratory Instruments

thumbnail photo  of 1935 Zeiss Abbe refractometer


Special Purpose Modified Abbe-type Instruments

thumbnail photo  of Zeiss sugar refractometer


High Precision Instruments

thumbnail photo  of precision B&L refractometer


Miscellaneous Instruments

thumbnail photo  of Fisher refractometer


**These instruments are now at the Chemical Heritage Foundation in Philadelphia, PA.


American Optical/Spencer

Bausch & Lomb:

Carl Zeiss

Fisher Scientific

Museum Home

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HSTC (1921-34)
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HSC (1935-1953)
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HSC (1954-1973)

© R. Paselk

Last modified 8 July 2014