Green Mercury Barometer

Description
Nicolas Fortin, a prominent instrument maker in Paris in the early nineteenth century, introduced a mercury barometer with a glass and leather cistern so designed that the barometer could be safely moved from one place to another. James Green began making Fortin-type barometers for the Smithsonian in the 1850s, though with a slightly different design to the cistern. This example marked “JAS GREEN N.Y. 1870” was made between 1849 when Green moved to New York, and 1879 when he took his nephew into partnership and began trading as J. & H.J. Green.
Ref: “Directions for Meteorological Observations,” in Smithsonian Miscellaneous Collections 19 (1860): 54-62.
"Green's Standard Barometer," in Henry J. Green, Meteorological and Scientific Instruments (Brooklyn, 1900), pp. 4-6.
C.F. Marvin, (Washington, D.C., 1894).
Location
Currently not on view
date made
1849-1879
maker
James Green
place made
United States: New York, New York
Measurements
overall: 40 1/4 in; 102.235 cm
overall: 40 in x 1 7/8 in; 101.6 cm x 4.7625 cm
ID Number
PH.328880
catalog number
328880
accession number
277916
Credit Line
U.S. Naval Observatory
See more items in
Medicine and Science: Physical Sciences
Measuring & Mapping
Barometers
Data Source
National Museum of American History, Kenneth E. Behring Center

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