Humboldt State University ® Department of Chemistry

Robert A. Paselk Scientific Instrument Museum

B&L Duboscq Colorimeter Instruction Manual

This manual was issued by Bausch & Lomb in 1932. It is reproduced with permission from Bausch & Lomb Inc..

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The original brochure measures 6 1/8 x 9 1/4 inchs and is printed on glossy paper with a brown cardstock cover and bound with two staples. The back cover had no print on either side.

Instrument Literature


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

© R. Paselk
Last modified 23 May 2014