H. J. Green Maximum and Minimum Soil Thermometer

Description
Charles F. Marvin and Milton Whitney, both of the U.S. Weather Bureau, introduced this type of Combined Maximum and Minimum Soil Thermometer in 1893. This example has a wood and brass frame. A brass plate on the frame is marked "H. J. GREEN B'KLYN N.Y." and "No. 8 U.S. WEATHER BUREAU" and graduated every 5 degrees Fahrenheit from -20 to +170. The glass thermometer inside the frame is filled with mercury and alcohol. The back of the stem is milk glass. The clear front is marked "U.S. 8" and graduated every degree Fahrenheit from -20 to +180. The Weather Bureau transferred it to the Smithsonian in 1954.
Ref: C. F. Marvin and M. Whitney, "Instructions for Use of Combined Maximum and Minimum Soil Thermometer," U.S. Weather Bureau Circular G (1894).
Location
Currently not on view
Object Name
soil thermometer
thermometer
date made
after 1890
maker
H. J. Green
place made
United States: New York, Brooklyn
ID Number
PH*314540
catalog number
314540
accession number
204612
subject
Measuring & Mapping
Agriculture
U.S. Weather Bureau
Thermometers and Hygrometers
See more items in
Medicine and Science: Physical Sciences
Thermometers and Hygrometers
Data Source
National Museum of American History, Kenneth E. Behring Center
Credit Line
U.S. Weather Bureau

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