Humboldt State University
®
Department of Chemistry
Robert A. Paselk Scientific Instrument Museum
The essay below is taken from: Cenco.
Cat J- 150 General Catalog Laboratory Apparatus & Scientific Instruments
. Chicago. (1950). It preceeds the catalog descriptions of refractometers in the catalog, and is used by permission.
Refractometer Exhibit Catalog
HSTC (1921-34)
HSC (1935-1953)
HSC (1954-1973)
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© R. Paselk
Last modified 21 August 2010
