Wightman Mercury Barometer

The “J.M. WIGHTMAN BOSTON” signature on this instrument refers to Joseph M. Wightman (1812-1885), a Bostonian who specialized in apparatus for pedagogical purposes. The case is mahogany. The ivory scale extends from 26 to 31 inches, is read by a vernier, and has indications for “RAIN,” “CHANGE” and “FAIR.” The cistern is made of boxwood with a leather bottom that is adjustable by a brass knob.
Ref.: Ellen McBee, “Joseph Milner Wightman: Philosophical Instrument Maker,” Rittenhouse 6 (1992): 65-72.
Object Name
barometer, mercury
date made
Wightman, Joseph Milner
place made
United States: Massachusetts, Boston
ID Number
accession number
catalog number
Measuring & Mapping
See more items in
Medicine and Science: Physical Sciences
Data Source
National Museum of American History, Kenneth E. Behring Center
Credit Line
Washington and Jefferson College

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