Humboldt State University ® Department of Chemistry

Robert A. Paselk Scientific Instrument Museum

The scanned brochure below was kindly provided by Dave Hammond, Instrumentation Coordinator, Physics Dept. Cook A-451, University of Vermont, Burlington.

© Richard A. Paselk 2003

Welch Alluard Hygrometer Instructions


Index of Instruments

Museum Home

Instrument Literature


HSTC (1921-34)
HSC (1935-1953)
HSC (1954-1973)
© R. Paselk
Last modified 14 April 2003