Green Mercury Barometer

Description
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.
Location
Currently not on view
Object Name
barometer, mercury
date made
ca 1890
maker
H. J. Green
Measurements
overall: 40 in; 101.6 cm
place made
United States: New York, Brooklyn
ID Number
PH*314712
accession number
209514
catalog number
314712
subject
Measuring & Mapping
Barometers
See more items in
Medicine and Science: Physical Sciences
Barometers
Data Source
National Museum of American History, Kenneth E. Behring Center
Credit Line
U.S. Weather Bureau

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