Humboldt State University

Robert A. Paselk Scientific Instrument Museum

Humboldt State College, the Early Period: 1935-53

Instruments and Apparatus

Information regarding the instruments is available via the table in three formats: photographs of the instruments; text describing the usage/history of each instrument and appearance, condition etc. for each device, and scanned vendor's catalog descriptions of the instruments (when available). Additional information for select instruments is also provided via links to the text accessed in the center column. Thus early and/or contemporary instructions on usage, histories of manufacturers, etc. may be provided. Download sizes for photographs and scans are shown in parenthesis under each thumbnail.
Instruments by Measurement or Function

Instrument /Vendor's Catalog

 Photoimage of Instrument

  Vendor's Description

Refractometer
Carl Zeiss
(1920; HSC c. 1938)
 
Eimer and Amend
Catalog AA (1920)
Instrument photo icon
(98k)
catalog description scan icon
(76k)
 
Refractometer
AO Spencer
(HSC 1953)
 
Adolph Frese Corp.
Catalog (1950)
 Instrument photo icon
(66k)
  catalog description scan icon
(51k)
Polarizing Microscope
AO Spencer
(HSC 1953)
 
Chemical Rubber Company
Catalog A-L (1955)
Instrument photo icon
(66k) 
 
catalog description scan icon
(64k)
 
Microscope, Wide Field Binocular
Ernst Leitz
(HSC? c. 1935)
 
Instrument photo icon
(34k)
 
Microscope, Wide Field Binocular
Bausch & Lomb
(HSC c. 1940)
 
Braun-Knecht-Heiman Co.
Catalog 40 (1940)
Instrument photo icon
(36k)

catalog description scan icon

(100k)
Polarimeter
Zeiss-Winkel
(HSC c. 1953)
 
Instrument photo icon
(43k)
 
 
Dubosc Colorimeter
Bausch & Lomb
(HSC c. 1945)
 
Braun-Knecht-Heiman Co.
Catalog 40 (1940)
 
Instrument photo icon
(28k)
 
catalog description scan icon
(78k)
Micrometer Sextant
David White Co.
(HSC c. 1944)

Instrument photo icon
 
Micrometer Sextant
Leupold & Stevens Instruments
(HSC c. 1945)

Instrument photo icon
 

Micrometer Sextant
Kelvin & Wilfred White Co.
(HSU; c. 1943)

 

image icon
 
 
 Analytical Balance
Christian Becker
(HSC 1948)
 
Braun-Knecht-Heiman Co.
Catalog 40 (1940)
  Instrument photo icon
(66k)
 catalog description scan icon
(130k)
 
Analytical Chain Balance
Christian Becker
(HSC 1952)
 
Central Scientific Company
Catalog J-150 (1950)
 Instrument photo icon
(66k)
 catalog description scan icon
(94k)
 
Analytical Balance Weights
Christian Becker
(HSC c 1950)
 
Instrument photo icon
(54k)
 
catalog description scan icon
(98k)
Analytical Balance Weights
Central Scientific Company
(HSC c 1952)
Instrument photo icon
 
 
Zeleny Electroscope
Cenco
(HSC c. 1950)
 
Central Scientific Company
Catalog J-150 (1950)
 Instrument photo icon
(34k)
 
catalog description scan icon
(195k)
 
Resistance Box
Central Scientific Co.
(HSC c. 1950)
 
Central Scientific Company
Catalog J-150 (1950)
 Instrument photo icon
(50k)
 
catalog description scan icon
(130k)
 
Variable Air Condenser
Leeds & Northrup Co.
(HSC c. 1950)
 
Central Scientific Company
Catalog J-150 (1950)
 
Instrument photo icon
(65k)
 
catalog description scan icon
(98k)
Wheatstone Bridge
Leeds & Northrup Co.
(HSC <1950)
Central Scientific Company
Catalog J-141 (1941)
photo icon
catalog scan icon

 

Table-top Centrifuge
Philips Drucker
(HSC c. 1940)
 
Instrument photo icon
(50k) 
 
 
Beckmann Thermometer
Central Scientific Company
(HSC c 1940?)
 
Instrument photo icon
(22k)
 
catalog description scan icon
(130k)

Most of these instruments may currently be seen by appointment at the Chemistry Department Office at Humboldt State University, Arcata. California.

If you have additional information regarding the instruments you think I could/should include please share that information. I am particularly interested in additional contemporary catalog illustrations for the instruments missing that information. I am also interested in contemporary sources for the use of these instruments in teaching etc. I may be contacted by e-mail : rap1@axe.humboldt.edu; mail: Richard Paselk, Department of Chemistry, Humboldt State University, CA 95521; or telephone: (707) 826-5719.

 


HSTC icon
HSTC (1921-34)
HSC 35-53 icon
HSC (1935-1953)
HSC 54-73 icon
HSC (1954-1973)

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© R. Paselk
Last modified 7 August 2012