Green Mercury Barometer

James Green began making portable mercury barometers for the Smithsonian in the mid-1850s, and his successor, H.J. Green, was still making similar instruments in the 1930s. This example is of that sort. But, in place of the original leather cistern, it has a cistern that was designed by Charles B. Tuch, an employee of the Instrument Division of the Signal Service and later the U.S. Weather Bureau. The barometer is marked "H.J. Green, B'klyn N.Y" and "Signal Service No. 160A," and was probably made before the establishment of the Weather Bureau in 1891.
Ref.: C.F. Marvin, Barometers and the Measurement of Atmospheric Pressure (Washington, D.C., 1894); the “Tuch Cistern” is described and illustrated on pp. 15-16.
Currently not on view
date made
ca 1890
H. J. Green
place made
United States: New York, Brooklyn
overall: 40 in; 101.6 cm
overall: 40 3/8 in x 1 3/4 in; 102.5525 cm x 4.445 cm
ID Number
accession number
catalog number
Credit Line
U.S. Weather Bureau
See more items in
Medicine and Science: Physical Sciences
Measuring & Mapping
Data Source
National Museum of American History


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