H. J. Green Minimum Thermometer

H. J. Green Minimum Thermometer

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Usage conditions apply
Spirit-in-glass Rutherford-type thermometer mounted on a heavy flat plate marked "HENRY J. GREEN NEW YORK" and "1868." A white porcelain strip on the plate is graduated every 5 degrees Fahrenheit from -75 to +90. The stem is marked "No. 1868 Signal Service U.S. Army" and graduated (but not numbered) every degree Fahrenheit from -82 to +98. It was made between 1885 and 1890 when Henry J. Green was in business on his own in New York.
John Rutherford, a Scottish country doctor, devised this form in 1790. Green stated in 1900 that it was "the only one in general use." It has a black index inside the tube. "On a decrease of temperature the alcohol recedes, taking with it the glass index; on an increase of temperature the alcohol alone ascends the tube, leaving the end of the index farthest from the bulb indicating the minimum temperature."
Ref.: Henry J. Green, Meteorological and Scientific Instruments (Brooklyn, 1900), p. 23.
Currently not on view
Object Name
date made
H. J. Green
place made
United States: New York, New York City
tube: 10 3/4 in; 27.305 cm
plate: 9 1/2 in; 24.13 cm
overall: 11 7/8 in x 15/16 in x 3/8 in; 30.1625 cm x 2.38125 cm x.9525 cm
ID Number
accession number
catalog number
Credit Line
U.S. Weather Bureau
See more items in
Medicine and Science: Physical Sciences
Thermometers and Hygrometers
Measuring & Mapping
Data Source
National Museum of American History
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